WO2005102618A1 - ロボットハンド部材、その製造方法及びロボットハンド - Google Patents
ロボットハンド部材、その製造方法及びロボットハンド Download PDFInfo
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- WO2005102618A1 WO2005102618A1 PCT/JP2004/019521 JP2004019521W WO2005102618A1 WO 2005102618 A1 WO2005102618 A1 WO 2005102618A1 JP 2004019521 W JP2004019521 W JP 2004019521W WO 2005102618 A1 WO2005102618 A1 WO 2005102618A1
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- Prior art keywords
- robot hand
- hand member
- robot
- sheet
- cross
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25J—MANIPULATORS; CHAMBERS PROVIDED WITH MANIPULATION DEVICES
- B25J15/00—Gripping heads and other end effectors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25J—MANIPULATORS; CHAMBERS PROVIDED WITH MANIPULATION DEVICES
- B25J9/00—Program-controlled manipulators
- B25J9/0009—Constructional details, e.g. manipulator supports, bases
- B25J9/0012—Constructional details, e.g. manipulator supports, bases making use of synthetic construction materials, e.g. plastics, composites
Definitions
- Robot hand member manufacturing method and robot hand
- the present invention relates to a lightweight, excellent flatness, bending rigidity, heat resistance, etc. robot hand attached to an arm portion of an industrial robot, and particularly to a carbon fiber reinforced composite excellent in vibration damping rate characteristics. It relates to a member manufactured from a material. The present invention also relates to a method for manufacturing the robot hand member.
- a robot hand of an industrial robot is attached to the tip of a robot arm, and supports, "gripping", and holds a work through the operation of the robot arm.
- This industrial robot performs various processes by attaching equipment for machining and welding, but by attaching a hand member to the end of the arm, it can be used especially for liquid crystal display (LCD), plasma display panel (PDP), It is suitably used for transporting substrates used in the manufacturing process of precision products such as silicon wafers.
- LCD liquid crystal display
- PDP plasma display panel
- the weight of the robot can be reduced to some extent.
- the bending stiffness of the robot and hand is reduced, so the radius (load radius) when supporting the work becomes large.
- the radius at the tip becomes large, which may cause a collision with a workpiece storage device (substrate cassette).
- vibrations and the like when the work is supported tend to be large, and the vibration damping characteristics are poor. As a result, there is a risk that work supportability or transportability may be impaired.
- Patent Document 1 Japanese Patent Application Laid-Open No. 2000-343476
- a plurality of prepreg sheets containing carbon fibers are laminated.
- a skin layer made of a plate-shaped carbon fiber reinforced composite material (CFRP) that has been heated and thermally cured, and a core layer that also has the same CFRP force are separately molded, and the above core layer is used as a core material on the upper and lower surfaces
- CFRP plate-shaped carbon fiber reinforced composite material
- a technique has been proposed in which a skin layer is laminated, and the core layer and the skin layer are bonded to each other with an adhesive to produce the core layer.
- the skin layer a plurality of prepreg sheets having different orientation directions of carbon fibers are laminated to improve bending rigidity, vibration damping characteristics, heat resistance, and the like.
- the core layer is made of a metal such as aluminum or a honeycomb core material having a fiber aggregate strength and a CFRP material, and is designed to be lightweight and to have bending rigidity, vibration damping characteristics, heat resistance, and the like. Have improved.
- Patent Document 2 Japanese Unexamined Patent Publication No. 2002-292592
- a prepreg sheet is laminated on a predetermined surface of a core material, which is cured by heating, and then the core material is removed to form a hollow structure.
- a method has been proposed in which a robot hand is formed or a core material used is reduced in weight so that the core material remains.
- Patent Document 3 Japanese Patent Application Laid-Open No. 2002-292591
- a pre-prepared sheet is wound around a core material in a plurality of layers. It has been proposed to aim for a simplified version.
- Patent Document 1 JP-A-2000-343476
- Patent Document 2 Japanese Patent Application Laid-Open No. 2002-292592
- Patent Document 3 JP-A-2002-292591
- an object of the present invention is to provide a member for a robot hand which is attached to the tip of an arm of an industrial robot with significantly improved vibration damping properties.
- the present inventors further studied the members of the CFRP robot hand having a hollow structure disclosed in Patent Documents 2 and 3, and found that the carbon fibers used were made highly elastic and the shape thereof was easily changed. In addition, they found that the vibration damping properties could be significantly improved. [0015] That is, the present invention provides
- a robot hand member for industrial robots manufactured from carbon fiber reinforced composite materials, using high elastic carbon fibers with a tensile modulus of 490 to 950 GPa as a carbon fiber in a volume ratio of 30% or more, in the longitudinal direction.
- a robot hand member having a hollow structure in which an outer periphery in a direction perpendicular to the direction of the head becomes smaller toward a tip portion.
- the robot node member is a prepreg sheet in which a high-performance carbon fiber having a tensile modulus of elasticity of 490-950 GPa is oriented as carbon fiber in one direction of 0 ⁇ 5 ° in the longitudinal direction of the robot hand member. 2.
- the robot hand member comprises a high elasticity carbon fiber having a tensile elasticity of 490-950 GPa formed on the outer layer of a pre-prepared sheet in which unidirectional carbon fibers having a tensile elasticity of less than 4900? Are oriented in one direction of 90 ⁇ 5 °. Is laminated by laminating a pre-prepared sheet oriented in one direction of 0 ⁇ 5 ° in the longitudinal direction of the robot hand member, and wrapping the outermost layer with a cross pre-prepared sheet containing reinforcing fibers to cover and heat-set the laminated structure
- the robot hand member according to (4), wherein
- An industrial robot hand member manufactured from a carbon fiber reinforced composite material, wherein a high elastic carbon fiber having a tensile modulus of 490 to 950 GPa is used as a carbon fiber in an amount of 30% or more, It has an aerial structure in which the proximal side of the member, which is the mounting portion to the robot hand, has a closed cross section, and the cross-sectional shape on the distal end side facing the proximal end in the longitudinal direction of the member is opposed to the work supporting surface of the member.
- a robot hand member having an open cross section with an open surface.
- the range having the hollow structure which is the closed cross section on the proximal side, is not less than 2Z5 and not more than 4Z5 of the total length of the mouth bot hand member from the proximal end, and has the open cross section on the distal end side.
- the range is 1Z5 or more and 3Z5 or less of the total length of the robot hand member at the front end side.
- the robot hand member is characterized in that, at the distal end portion where the cross-sectional shape of the robot hand member is an open cross section, the height of the robot hand member decreases toward the distal end (6) or (7).
- the robot hand member according to any one of the above.
- the height of the robot hand member at the distal end is 1Z5 or more and 3Z5 or less at the distal end of the robot hand member at the proximal end of the robot hand member.
- the hand-side portion which is a closed cross section of the robot hand member, has a hollow hollow pipe shape having a rectangular cross-sectional shape, and the cross-sectional shape on the distal end side, which is an open cross-section, is a U-shape.
- the robot hand member according to the item (1) which is characterized by (6) to (9).
- the robot rod member is a prepreg sheet in which high elastic carbon fibers having a tensile modulus of elasticity of 490-950 GPa as carbon fibers are oriented in one direction of 0 ⁇ 5 ° in the longitudinal direction of the robot rod member.
- the robot hand member according to any one of (6) to (10), wherein the laminated structure containing is thermally cured.
- the robot hand member includes a high elasticity carbon fiber having a tensile elasticity of 490-950 GPa on an outer layer of a pre-predeer sheet in which carbon fibers having a tensile elasticity of less than 4900900 are unidirectionally oriented at 90 ⁇ 5 °. Is laminated by laminating a pre-prepared sheet oriented in one direction of 0 ⁇ 5 ° in the longitudinal direction of the robot hand member, and wrapping the outermost layer with a cross pre-prepared sheet containing reinforcing fibers to cover and heat-set the laminated structure
- a carbon fiber reinforced resin prepreg sheet is laminated on the outer periphery of a core material having a predetermined cross-sectional shape using a material having heat non-deformability, and heating or heating. And a step of curing the prepred sheet by applying pressure,
- a part of the cross-sectional element in a predetermined range of the hollow structure is removed, and the predetermined range is removed.
- a robot hand to be attached to an end of an arm of an industrial robot comprising: a robot hand member for holding a work; and an attachment portion for holding and fixing the robot hand member to the arm end.
- a robot node, wherein the robot node member is the member according to any one of (1) to (12).
- the present invention it is possible to easily provide a robot hand member having significantly improved vibration damping characteristics, and to promote the improvement of productivity, particularly when a workpiece such as a glass substrate, which is increasing in size, is transferred.
- FIG. 1 is a schematic perspective view showing an example of a robot hand 1 according to a first embodiment of the present invention.
- FIG. 2 is a view showing an example of a hollow robot hand member 10 according to the first embodiment of the present invention, wherein (a) is a perspective view, (b) is a top view, and (c) is a side view. .
- FIG. 3 is a view showing another example of the hollow robot hand member 10 according to the first embodiment of the present invention, wherein (a) is a perspective view, (b) is a top view, and (c) is a side view. is there.
- FIG. 4 is a schematic perspective view showing an example of a robot hand 1 ′ according to a second embodiment of the present invention.
- FIG. 5 is a view showing an example of a robot hand member 10 ′ according to a second embodiment of the present invention, wherein (a) is a perspective view, (b) is a cross-sectional view taken along line AA ′ of the distal end side, (C) is a cross-sectional view taken along the line BB 'on the hand side.
- FIG. 6 is a view showing another example of the robot node member 10 ′ according to the second embodiment of the present invention, wherein (a) and (b) are from the opposite side (below the member) of the work supporting surface. View seen, (c) is a side view
- FIG. 7 is a view illustrating a manufacturing process of the robot hand member 10 ′ according to the second embodiment of the present invention.
- FIG. 8 illustrates another method of manufacturing the robot hand member 10 ′ according to the second embodiment of the present invention.
- FIG. 9 is a diagram illustrating a free vibration damping waveform in the evaluation of vibration damping characteristics.
- FIG. 10 is a view showing a vibration damping characteristic of the hollow robot hand member of the present invention obtained in Example 1.
- FIG. 11 is a view showing a vibration damping characteristic of a conventional hollow robot hand member obtained in Comparative Example 1.
- FIG. 12 is a diagram showing the vibration damping characteristics of a conventional solid robot hand member obtained in Comparative Example 2.
- FIG. 13 is a graph showing the logarithmic decrement of the robot hands of Example 1, Comparative Examples 1 and 2.
- FIG. 14 is a diagram showing the vibration damping characteristics of the robot hand member of the present invention obtained in Example 2.
- FIG. 15 is a diagram showing the vibration damping characteristics of the robot hand member of the present invention obtained in Example 3.
- FIG. 16 is a diagram showing the vibration damping characteristics of the robot hand member of the present invention obtained in Example 4.
- FIG. 17 is a view showing a vibration damping characteristic of the robot hand member obtained in Comparative Example 3.
- FIG. 18 is a diagram showing vibration damping characteristics of a robot hand member obtained in Comparative Example 4.
- FIG. 19 is a view showing a vibration damping characteristic of a robot hand member obtained in Comparative Example 5. Explanation of symbols
- FIG. 1 shows a robot hand 1 to which a robot hand member 10 according to a first embodiment of the present invention is attached
- FIG. 4 shows a robot hand member 10 ′ according to a second embodiment of the present invention.
- the robot hand 1 ′ with the attached is shown.
- the robot hands 1 and 1 ' are attached to the tip of the arm of an industrial robot, and support a work 2 such as a liquid crystal display (LCD), a plasma display panel (PDP), a semiconductor wafer, or precision equipment. It is used for transport and other purposes.
- a work 2 such as a liquid crystal display (LCD), a plasma display panel (PDP), a semiconductor wafer, or precision equipment. It is used for transport and other purposes.
- LCD liquid crystal display
- PDP plasma display panel
- the robot hands 1 and 1 ′ have a mounting portion 4 attached to the arm portion of the industrial mouth bot through a mounting hole 3, a robot hand fixedly mounted at the tip thereof, And (10 ').
- the robot node member 10 according to the first embodiment of the present invention will be described.
- the robot hand member 10 shown in the first embodiment is characterized in that it is a hollow pipe whose outer periphery in a direction perpendicular to the longitudinal direction becomes smaller toward its tip.
- the “longitudinal direction” is the direction of a line connecting the cross-sectional center of gravity (G1) of the near side (the mounting portion side) of the hollow pipe and the cross-sectional center of gravity (G2) of the front end, as shown in FIG. .
- G1 cross-sectional center of gravity
- G2 cross-sectional center of gravity
- the cross-sectional shape of the robot hand member 10 of the present invention is not limited to a square pipe shape, but may be various shapes such as a triangle, a polygon, a circle, or a semicircle. It is preferable to select a shape that can flatten the surface. Also, as the aspect of reducing the outer circumference in the tip direction, see FIGS. As shown in FIG. 3, the hand-side force is not limited to a mode in which the force is uniformly reduced toward the distal end portion.For example, in a portion in contact with the mounting portion 4 of the robot node, the outer periphery thereof is not changed. In addition, various modes are possible, such as a mode in which the outer circumference is gradually reduced at the free end earlier, or a mode in which the outer circumference is reduced to a middle portion in the longitudinal direction and the outer circumference is made constant.
- leading end may be left open as shown in FIGS. 2 and 3, or the leading end may be closed by bending a pre-prepared sheet at the time of manufacturing a hollow member to be described later.
- a cap which is also an elastic member such as rubber may be fitted to the open end.
- FIG. 1 shows a robot hand having two robot hand members 10.
- the force is not limited to this, and a desired number can be combined according to the type of work, the load weight, and the like.
- the shape and the like of the mounting portion are not limited to those shown in FIG. 1, but can be any desired mounting portion.
- both sides in the longitudinal direction may be tapered, but as shown in Fig. 1, there is no taper on the outside of the robot hand, only the inside If a taper is provided to the robot, the control system of the robot node can be used without changing from the conventional one.
- the outer periphery of the robot hand member 10 of the present invention at the distal end portion preferably has at least one-third, more preferably at least one-half of the outer periphery on the fixed end side. If the outer circumference is made a little smaller than that of the same outer circumference, the force that exerts an effect on vibration damping properties is preferably 9/10 or less, more preferably 3/5 or less.
- CFRP carbon fiber reinforced composite
- high elastic carbon fibers having a tensile modulus of 490 to 950 GPa are used as a carbon fiber at a volume ratio of 30% or more. If the volume ratio is less than 30%, sufficient rigidity cannot be obtained, and a member having high vibration damping characteristics cannot be obtained. Preferably, use at least 40%.
- all of the reinforcing fibers used may be high elastic carbon fibers, but some of them are other known reinforcing fibers, such as carbon fibers having a tensile modulus of less than 490 GPa, glass fibers, aramide fibers, and silicon carbide fibers. May be constituted by the reinforcing fibers.
- the volume ratio of high elastic carbon fiber is up to 90% and the remainder is used in combination with other reinforcing fibers, especially carbon fiber with a tensile modulus of less than 490 GPa, the mechanical strength, vibration damping characteristics and cost are favorable. Often gives results.
- the strong robot hand member 10 is manufactured by, for example, a process as described in Patent Document 2 described above.
- the core material is formed in a tapered shape corresponding to the shape of the robot hand member 10 and has a certain degree of rigidity that functions as a so-called lining plate when laminating the pre-reader sheets.
- the material of the core material for example, metals such as aluminum, iron, and stainless steel, MC nylon resin, and polyimide resin are suitable.
- a release material may be applied to the surface of the core material.
- a medicine for example, a surfactant
- a release sheet such as a Teflon (registered trademark) sheet may be used.
- non-deformable by heating at a predetermined temperature refers to a material having such a property that it is hardly deformed at a heating temperature in a heating step described later.
- the material is hardly deformed at the heating temperature, which means that the material of the core material melts or warps, bends, bends, twists, wrinkles, folds, or the like occurs under the heating conditions described below.
- the predetermined temperature refers to, for example, a temperature of about 100 to 190 ° C. or higher, depending on the thermosetting temperature of the matrix resin of the original pre-prepared sheet described later.
- the core material for manufacturing the robot member 10 of FIG. 2 is a rectangular material having a horizontally long rectangular cross section, and is processed into a tapered shape in which the width is reduced toward the front end portion. It is a thing. Further, as the core material for producing the robot hand member 10 shown in FIG. 3, a material whose height becomes smaller toward the distal end portion is used.
- the prototype prepreg sheet is an uncured sheet obtained by impregnating matrix resin into carbon fiber sheeted sheet.
- a plurality of laminated prepreg sheets mainly use a high modulus carbon fiber prepreg sheet having a tensile modulus of 490 to 950 GPa, and the remainder use a carbon fiber prepreg sheet having a tensile modulus of less than 490 GPa. Good. Also, as long as the support performance or transfer performance as a robot hand member is not impaired. It is also possible to partially add a prepreg sheet containing the above glass fiber or the like or other fibers.
- thermosetting resin such as an epoxy resin, a phenol resin, a cyanate resin, an unsaturated polyester resin, a polyimide resin, and a bismaleimide resin is used.
- a material that can withstand a high temperature and high humidity environment such as rubber vulcanization is preferable.
- the thermosetting resin may be prepared by adding fine particles made of rubber resin to the thermosetting resin for the purpose of imparting impact resistance and toughness, or by adding a thermoplastic resin to the thermosetting resin. Use a solution of fat.
- a PAN type of less than 490 GPa and a pitch type of 490-950 GPa are used in combination.
- the pitch type has a feature of high elastic modulus
- the PAN type has a feature of high tensile strength.
- examples of the original prepredder sheet include a unidirectional sheet in which reinforcing fibers are oriented in the same direction, and a cross sheet such as a plain woven fabric, a twill woven fabric, a satin woven fabric, and a triaxial woven fabric.
- the 490-950 GPa high elasticity carbon fiber pre-prepared sheet it is particularly preferable to use a unidirectional sheet.
- the original prepreg sheet is made of various types by changing the type of the reinforcing fiber, changing the ratio of the reinforcing fiber to the matrix resin, or changing the orientation state of the reinforcing fiber. Prepare multiple pre-prepared sheets to be used according to the purpose of use of the robot hand 1 and the place where the robot hand member 10 is used so that a CFRP member with optimal bending rigidity is formed. Is preferred.
- pre-predeer sheet pieces having predetermined dimensions are formed in the same manner.
- a prepreg sheet piece is laminated and attached to each surface of the core material (lamination step). Since the pre-predator sheet pieces are in an uncured state and have a certain degree of adhesive strength, they are adhered to the core material that has been subjected to the release treatment by merely sequentially stacking the sheets.
- the film while applying heat with an iron or the like, the film is closely adhered to the lower film or sheet, and is closely laminated to a desired thickness (for example, about 17 mm).
- the desired thickness in this case means that the volume of the pre-preda sheet is reduced by heating and curing, and the robot hand member Slightly thicker and more preferable than the required thickness of 10 CFRP plates.
- Lamination of the pre-preda sheet is performed by setting the unidirectional sheet in which the carbon fibers are oriented substantially perpendicularly (90 ⁇ 5 °) to the longitudinal direction (hereinafter referred to as “90 ° orientation”) as the innermost (that is, the lowermost layer).
- the one-way sheet is inclined 45 ° clockwise or counterclockwise with respect to the longitudinal direction of the robot hand member, so that the reinforcing fiber is inclined (45 ⁇ 15 ° or 135 ⁇ 15 °).
- a two-way cross (woven) prepreg in which the reinforcing fibers intersect at right angles to each other, and move this layer clockwise with respect to the longitudinal direction of the robot hand member.
- the cross pre-predeer sheet which orients the reinforcing fibers in two directions of 45 ° and 135 ° may be laminated in combination.
- the 0 ° oriented sheet has a longitudinal radius prevention property and a vibration damping property.
- the 90 ° oriented sheet has an effect of suppressing collapse of the hollow structure. Further, by combining a 45 ° oriented sheet or a 135 ° oriented sheet, the torsional rigidity and the torsional vibration damping characteristics are further improved.
- the cross sheet has an effect similar to the above-described combination of the one-way sheet.
- the 90-degree oriented sheet be the lowermost layer (the innermost layer), from the viewpoint of easy removal of the core material. This is because carbon fibers have a lower heat shrinkage than matrix resin, and the shrinkage as a sheet is lower in the fiber orientation direction than in the fiber arrangement direction.
- the reinforcing fibers are oriented so as to surround the outer periphery of the core material. This is the force that does not need to be reduced.
- the 90 ° orientation sheet it is preferable to use a carbon fiber pre-predator sheet having a tensile modulus of less than 490 GPa.
- a 490-950GPa high-elasticity carbon fiber prepreg sheet is used as a 0 ° oriented sheet. Preferably, it is used.
- the cross pre-prepared sheet is an uncured sheet in which reinforcing fibers woven in a plurality of directions are impregnated with the matrix resin, and the reinforcing fibers include woven carbon fibers, Glass fibers, aramide fibers or silicon carbide fibers are preferred. Further, a sheet having high flexibility and adhesiveness is preferable so that the sheet can be covered with the laminated member in close contact.
- the plate or the like is pressed against the plate with a four-way force, and the uncured member in this state is put into a vacuum knock or the like and heated to form the robot hand member 10 of the present embodiment.
- the heating condition is to raise the temperature from room temperature at a rate of 2-10 ° CZmin, hold at about 100-190 ° C for about 10-180 minutes, then stop heating, allow the temperature to cool down by natural cooling, and cool to room temperature.
- each of the pre-predator sheets contains a thermosetting resin
- the sheets are cured while being adhered to each other on the sheet surface and the sheet edge.
- the purpose of putting the uncured member in the vacuum bag is to suck air bubbles between the sheets generated in the laminating step and to apply an external pressure (ie, atmospheric pressure) to the uncured member substantially uniformly. There is.
- an external pressure in a specific direction may be applied to the uncured member!
- the flatness of the upper surface of the mouth bot hand member 10 i.e., the work supporting surface
- the dimensional accuracy (especially the thickness) of the robot hand member 10 is increased, and the edge of the pre-prepared sheet is pressed by pressing the bonding interface with a vice in a direction in which the bonding interfaces are pressed against each other.
- the core material is extracted (extraction step).
- a hollow cylindrical member 10 is formed.
- the robot node member 10 is configured not as a solid CFRP material but as a hollow structure, light weight can be realized. Therefore, for example, in the case of a long robot hand member attached to an attachment member or the like, It is possible to prevent the tip from bending or vibrating due to the load, and it is possible to improve the accuracy of supporting and transporting the work.
- a sensor or the like may be provided at the air supply path for supporting the work in a non-contact manner, the suction path for sucking and supporting the work, or the tip of the robot hand member, for example, in the hollow part of the robot node member 10. It can also be used as a wiring path for mounting.
- the CFRP plate since the core material has two functions, that is, a so-called backing plate when laminating a pre-prepared sheet and a so-called middle size when heating and forming the robot hand member 10, the CFRP plate has The shaping (ie, lamination of the pre-preda sheet) and the forming of the robot hand member (ie, the mutual joining with the pre-pre-da sheet of the adjacent wall) can be performed simultaneously.
- the outer peripheral surface is covered with the cross pre-prepared sheet, it is possible to prevent fluffing, burrs, and the like generated at the processing portion when performing post-processing such as cutting and opening. As a result, the processability is improved, and there is an advantage that there is no fear of damaging a precision work such as a liquid crystal display, a plasma display, and a silicon wafer.
- a robot member 10 'shown in the second embodiment in FIG. 4 is a long member, and has a hollow structure in which the proximal side (the robot hand mounting portion 4 side) in the longitudinal direction is a closed cross section. It is characterized in that the cross-sectional shape at the front end side (the side facing the hand side in the longitudinal direction) is an open cross-section.
- the range of the hollow structure, which is the closed cross section on the proximal side is 2Z5 or more and 4Z5 or less of the total length of the robot hand member 10 'from the proximal side, and the range having one open cross section on the distal side is the distal end. Therefore, the total length of the robot hand can be set to 1Z5 or more and 3Z5 or less. Also, it is preferable that the height of the robot node member 10 '(the width of both side surfaces of the work supporting surface) is the largest at the hand side and the smallest at the end on the front end side.
- the robot hand member 10 ' has a distal end portion having an open cross section.
- the height of the robot node member 10 ′ is tapered so that the height decreases toward the tip.
- the height h2 of the member at the distal end is 1Z5 or more and 3Z5 or less of the height hi of the member at the proximal end.
- the height of the robot hand member 10 ' is reduced toward the distal end, and the height of the robot hand member 10' is as shown in FIG. It may be changed linearly according to the direction of the tip as shown in the figure, or may be changed according to an arbitrary curve such as a parabola.
- the opening surface may be a surface facing the support surface of the work, that is, at least a part of the lower surface side is open.
- the boundary force between the closed cross section and the section to be opened should also be directed toward the tip, so that the height of the side is reduced.
- the shape is such that all the opposing surfaces are removed together with a part of the side surface.However, it is possible to remove the entire opposing surface while leaving the side surface as it is (Fig. 6 (a)), or to remove the opposing surface partially near the boundary.
- the opening shape may be formed in such a shape that it is completely removed at the tip (FIG. 6 (b)). Further, the opening start point (O) and the taper start point (T) may be the same or may be different positions as shown in FIG. 6 (e).
- FIGS. 6 (a) and 6 (b) and FIGS. 6 (c) and 6 (d), which are described later, are views from the side opposite to the work supporting surface, and the robot hand member 10 ′ is rectangular in FIG. 6 (a). 6 (b) shows a trapezoidal opening 10'a.
- Fig. 6 (e) is a view from the side.
- the closed cross-sectional shape of the hand portion of the robot hand member 10 'of the present embodiment is not limited to a square pipe shape, but may be various shapes such as a triangle, a polygon, a circle, or a semicircle. However, it is preferable to select a shape that can flatten the contact surface with the workpiece. In this case as well, the opening width corresponding to the opening force at the opening start point side and the opening width at the distal end side are different from each other, since the opening shape corresponding to the opening shape becomes the corresponding shape.
- a triangular opening 10'a as shown in FIG.
- the opening becomes a semi-elliptical opening 10'a as shown in FIG. 6 (d).
- CFRP carbon fiber reinforced composite material
- a high elastic carbon fiber having a tensile modulus of elasticity of 490 to 950 GPa is used as a carbon fiber at a volume ratio of 30% or more. If the volume ratio is less than 30%, sufficient rigidity cannot be obtained, and a member having high vibration damping characteristics cannot be obtained. Preferably, use at least 40%. Also, all of the reinforcing fibers used may be high elastic carbon fibers, but some of them are other known reinforcing fibers, such as carbon fibers having a tensile modulus of less than 490 GPa, glass fibers, aramide fibers, silicon carbide fibers, and the like. May be constituted by the reinforcing fibers.
- the powerful robot rod member 10 ′ can be manufactured, for example, by first manufacturing the original hollow square pipe and cutting it into a desired opening shape. This manufacturing method will be described with reference to FIG.
- the original hollow angular noise is manufactured by a process as described in Patent Document 2.
- a preparation step as shown in FIG. 7 (a), a core material 102 and an original prepreg sheet 101 are prepared.
- the core material 102 is manufactured so as to have a constant rectangular cross section in the longitudinal direction of the robot hand member 10 ', and has a certain degree of rigidity so as to function as a so-called backing plate when laminating the pre-preda sheet. Further, the core material 102 does not deform at a temperature lower than the heating temperature in the heating step, which functions as a so-called middle mold for molding the robot hand member 10 ′! Use a material that can be easily removed from the cured CFRP member.
- the material of the core material 102 for example, metals such as aluminum, iron, and stainless steel, MC nylon resin, and polyimide resin are suitable. Since the metal, resin, and the like have a higher coefficient of thermal expansion than CFRP, they shrink by cooling after heating, and are easily extracted. Further, if necessary, the surface of the core material may be subjected to a release treatment. As the release material, any method such as application of a medicine (for example, a surfactant) by spraying or the like, or use of a release sheet such as a Teflon (registered trademark) sheet may be used.
- a medicine for example, a surfactant
- Prototype pre-prepared sheet 101 is obtained by impregnating a sheet of carbon fiber with matrix resin. This is an uncured sheet.
- a plurality of laminated pre-predator sheets mainly use a high-elasticity carbon fiber pre-prepared sheet having a tensile modulus of 490 to 950 GPa, and use a carbon fiber pre-prepared sheet having a tensile modulus of less than 490 GPa for the remainder.
- thermosetting resin such as an epoxy resin, a phenol resin, a cyanate resin, an unsaturated polyester resin, a polyimide resin, and a bismaleimide resin is used.
- a material that can withstand a high temperature and high humidity environment such as rubber vulcanization is preferable.
- the thermosetting resin may be prepared by adding fine particles made of rubber resin to the thermosetting resin for the purpose of imparting impact resistance and toughness, or by adding a thermoplastic resin to the thermosetting resin. Use a solution of fat.
- the type of carbon fiber there are a PAN type of less than 490 GPa and a pitch type of 490 to 950 GPa. In the present invention, these are used in combination.
- the pitch type has a feature of high elastic modulus
- the PAN type has a feature of high tensile strength.
- examples of the original prepredder sheet include a unidirectional sheet in which reinforcing fibers are oriented in the same direction, and a cross sheet such as a plain woven fabric, a twill woven fabric, a satin woven fabric, and a triaxial woven fabric.
- the 490-950 GPa high elasticity carbon fiber pre-prepared sheet it is particularly preferable to use a unidirectional sheet.
- the original pre-predator sheet 101 can be formed by changing the type of the reinforcing fiber, changing the ratio of the reinforcing fiber to the matrix resin, or changing the orientation state of the reinforcing fiber.
- a CFRP member with optimal bending stiffness according to the purpose of use of the robot hand 1 ', the robot node, and the location of the hand member 10', It is preferable to select more than one pre-preda sheet.
- pre-prepared sheet pieces having predetermined dimensions are formed in the same manner.
- a prepreg sheet piece is laminated and attached to each surface of the core material (lamination step). Since the prepredder sheet pieces are in an uncured state and have a certain degree of adhesive strength, it is only necessary to sequentially stack the sheets on the core material that has been subjected to release processing. Affixed.
- the film while applying heat with an iron or the like, the film is closely adhered to a lower film or sheet, and is closely laminated to a desired thickness (for example, about 17 mm).
- the desired thickness in this case is preferably slightly thicker than the required thickness of the CFRP plate of the robot hand member 10, in anticipation of the volume decrease when the pre-preda sheet is heated and hardened.
- the lamination of the pre-preda sheet is such that the unidirectional sheet in which the carbon fibers are oriented substantially perpendicularly (90 ⁇ 5 °) to the longitudinal direction (hereinafter referred to as “90 ° orientation”) is the innermost (ie, the lowermost layer).
- a plurality of unidirectional sheets that are oriented substantially parallel (0 ⁇ 5 °) to the longitudinal direction are laminated on the upper surface.
- the one-way sheet is inclined 45 ° clockwise or counterclockwise with respect to the longitudinal direction of the robot hand member, so that the reinforcing fiber is inclined (45 ⁇ 15 ° or 135 ⁇ 15 °). ) (Hereinafter referred to as “45 ° or 135 ° orientation”), or a two-way cross (woven) pre-predeer in which the reinforcing fibers intersect at right angles to each other, and move this with respect to the longitudinal direction of the robot hand member.
- a cross pre-predeer sheet having two directions of reinforcing fiber orientations of 45 ° and 135 ° may be laminated in combination.
- the 0 ° oriented sheet has a longitudinal radius prevention property and a vibration damping property.
- the 90 ° oriented sheet has an effect of suppressing collapse of the hollow structure.
- the torsional rigidity and torsional vibration damping characteristics are further improved.
- the cross sheet has an effect similar to the above-described combination of the one-way sheet.
- the 90 ° oriented sheet be the lowermost layer (innermost layer), from the viewpoint of easy removal of the core material. This is because carbon fibers have a lower heat shrinkage than matrix resin, and the shrinkage as a sheet is lower in the fiber orientation direction than in the fiber arrangement direction.
- the reinforcing fibers are oriented so as to surround the outer periphery of the core material 102. It is also a force that does not require diameter reduction.
- the 90 ° -oriented sheet it is preferable to use a carbon fiber pre-predator sheet having a tensile modulus of less than 490 GPa.
- the robot hand member 10 As the sheet laminated on the upper layer (ie, the outer sheet), the robot hand member 10 ' Therefore, it is preferable to laminate the 0 ° -oriented sheet on the upper layer than the 90 ° -oriented sheet because of its high contribution to the properties (ie, bending stiffness, etc.) from the viewpoint of anti-radiality. In consideration of such points, the combination of the pre-prepared sheets to be used and the lamination order are determined.
- the cross prepreg sheet is an uncured sheet in which reinforcing fibers woven in a plurality of directions are impregnated with the matrix resin, and the reinforcing fibers include woven carbon fibers, Glass fibers, aramide fibers or silicon carbide fibers are preferred. Further, a sheet having high flexibility and adhesiveness is preferable so that the sheet can be covered with the laminated member in close contact.
- a four-way pressing plate or the like is pressed, and the uncured member in this state is put into a vacuum knock or the like and heated to form a base for the robot hand member 10 'of the present embodiment.
- a hollow square pipe is formed.
- the heating condition is to raise the temperature from room temperature at a rate of 2 to 10 ° C Zmin, hold at about 100 to 190 ° C for about 10 to 180 minutes, then stop heating, lower the temperature by natural cooling, and return to room temperature. return.
- each of the pre-predator sheets contains a thermosetting resin
- the sheets are cured while being adhered to each other on the respective sheet surfaces and sheet edges.
- the purpose of putting the uncured member in the vacuum bag is to suck air bubbles between the sheets generated in the laminating step and to apply an external pressure (ie, atmospheric pressure) to the uncured member substantially uniformly. There is.
- an external pressure in a specific direction may be applied to the uncured member.
- the flatness of the upper surface (i.e., the work supporting surface) of the mouth bot hand member 10 ′ can be improved by pressing the upper surface of the mouth bot hand member 10 ′ with a weight or the like while preventing a gap from being formed between the support plate and the thickness setting plate.
- the pre-prepared sheet is improved by improving the accuracy of the dimensions (especially the thickness) of the robot hand member 10 ′ or by pressing the bonding interface with a vice in a direction in which the bonding interfaces are pressed against each other. The joint at the edge is improved.
- the outer peripheral surface is covered with the cross pre-prepared sheet, it is possible to prevent fuzzing, burrs, etc., which occur in the processed portion when post-processing such as cutting and opening is performed. As a result, the processability is improved, and there is an advantage that there is no fear of damaging a precision work such as a liquid crystal display, a plasma display, and a silicon wafer.
- the steps of forming a structure are sequentially performed.
- the hollow CFRP pipe 103 thus formed is cut into a tapered shape on both side surfaces at the distal end as shown in Fig. 5, thereby obtaining a lower surface.
- the side is removed together with a part of the side surface, and the robot member 104 of the present embodiment is obtained.
- a diamond cutter, a water jet, or the like can be used for this cutting.
- FIG. 8 schematically shows an apparatus configuration for manufacturing a robot hand member 10 ′ having a rectangular closed cross-sectional shape.
- Auxiliary member with inclination of 203 Use the one with.
- the pre-preda sheet pieces 201 having a predetermined shape on the upper surface, the side surface, and the lower surface are laminated and stuck thereon.
- the exclusive outer molds 204a and 204b formed according to the outer surface shape of the robot hand member are heated while being pressed from the outside of the laminated member.
- the core material has two functions, that is, a so-called backing plate when laminating a pre-preda sheet and a so-called middle size when heating and forming the robot hand member 10 ′.
- the formation of the CFRP plate (that is, the lamination of the prepreg sheet) and the molding of the robot hand member (that is, the mutual joining with the prepreg sheet of the adjacent wall) can be performed simultaneously.
- a part of the cross-sectional element was continuously cut out from a hollow square pipe formed by so-called pultrusion molding, in which a predetermined amount of carbon fiber was unwound from a creel stand, aligned, and cured with a heated mold through a resin bath.
- the opening may be formed by removing it.
- the robot hand of the present invention can be obtained by combining the robot node members 10 'manufactured as described above as shown in FIG. At this time, in the hollow part of the robot hand member 10 ′, an air supply pipe for supporting the work in a non-contact manner, a suction pipe for sucking and supporting the work, or a sensor or the like at the tip of the robot hand member 10 ′. Wiring, etc., can be arranged when attaching a cable.
- a range of 150 mm from one end of the robot hand member is sandwiched from above and below by a fixing jig. And held horizontally in a cantilevered state. Strain gauges were stuck on the location 50 mm in the longitudinal direction from this fixed part, that is, on the upper and lower surfaces corresponding to 200 mm from the end of the robot hand on the fixed side. A weight of 5 kgf is suspended from the end of the freehand side of the robot hand to give an initial radius, and the suspended wire is cut to vibrate the robot node and measure bending distortion during free vibration attenuation. Then, the bending vibration damping characteristics of the robot hand were measured.
- T is the time of one cycle
- X 0 is the initial vibration amplitude intensity
- X is the vibration amplitude intensity at time nT
- ⁇ is the number of amplitudes.
- XN-80 pre-prepared with a pitch-based high modulus carbon fiber manufactured by Nippon Graphite Fiber Co., Ltd. [-80] (tensile elastic modulus 780 GPa) oriented in one direction and impregnated with epoxy resin. .
- the carbon fiber mass per unit area contained in the pre-preda sheet is 260 g / epoxy resin content is 31.5 mass%, and the thickness of one pre-preda sheet is 0.22 mm.
- the one-way prepreg sheet A is used as a 0 ° material whose orientation direction of the reinforcing fibers is substantially parallel to the longitudinal direction of the robot hand member.
- the mass of carbon fiber per unit area contained in the prepred sheet is 210 gZm 2
- the content of epoxy resin is 33.5 mass%
- the thickness of one prepred sheet is 0.20 mm.
- the material When the material is used as a 90 ° material that forms a 90 ° angle, the material is displayed as a pre-predder sheet B, and when it is used as a 0 ° material that is almost parallel to the longitudinal direction of the robot hand member, it is displayed as a pre-prepared sheet B ′.
- the orientation direction of the reinforcing fibers is 90 ° to the longitudinal direction of the robot hand member. When it is used as a 0 ° material that is almost parallel to it, it is indicated as a pre-preed sheet B1 ′.
- the mass of carbon fiber per unit area contained in the prepred sheet is 206 g / m Epoxy resin content: 44% by mass, and the thickness of the prepred sheet is 0.25 mm.
- the cross pre-preda sheet is laminated so that the orientation angle of the reinforcing fibers is 0 ° and 90 ° with respect to the longitudinal direction of the robot hand member.
- an aluminum plate with a width of 55 lmm and a thickness of 7.1 mm was prepared, and prepreg sheet B in which PAN-based carbon fibers were oriented 90 ° in the longitudinal direction of the core material, and PAN-based carbon fibers were used as the core material.
- a pre-prepared sheet B 'oriented at 0 ° in the machine direction and a cross-pre-preed sheet C oriented at 0 ° and 90 ° as the outermost layer are sequentially laminated on the core material in the number of laminations shown in Table 2 below, heat-cured, and cured.
- the core material was removed to obtain a hollow square pipe with a width of 60 mm, a height of 12 mm, a thickness of 2.45 mm and a length of 1000 mm.
- a pre-prepared sheet B 'and a cross-prepreded sheet C are laminated on the laminated body of the pre-prepared sheet B and heat-cured to obtain a solid CFRP plate having a width of 60 mm, a height of 12 mm and a length of 1000 mm.
- the lamination of each prepredder sheet was as shown in Table 3 below.
- Example 1 With respect to the robot hand members obtained in Example 1 and Comparative Examples 1 and 2, the bending vibration damping characteristics were measured and evaluated by the above-described method. The results are shown in Table 4 below and the drawings, respectively.
- the robot hand member according to the first embodiment has a high natural frequency and extremely excellent bending vibration damping characteristics. As a result, the vibration of the robot hand is eliminated in a very short time, and the working efficiency can be improved.
- the tapered shape has the effect of further reducing its own weight.
- a robot node member 10 'according to the second embodiment will be described with reference to examples and the like.
- a 2500 mm long aluminum plate with a rectangular cross section of 30 mm thickness and 75 mm width was prepared.
- the carbon fiber pre-predeer for orienting the reinforcing fibers in parallel with the longitudinal direction of the robot hand member the pre-preda sheet A was used.
- the above-mentioned prepreg sheet B1 was used as a carbon fiber prepreg for orienting the reinforcing fibers in a direction at 90 ° to the longitudinal direction of the robot hand member.
- the above-mentioned cross pre-prepared sheet C was used as a cross pre-preder to be wound around the outermost parts of the robot and the hand members.
- a square pipe having a hollow structure for a robot hand member was formed using the pre-prepared sheet according to the following procedure.
- Table 5 shows the robot hand members for Example 2. It is a laminated configuration.
- the pre-preda sheet B1 was wound around the outside of the aluminum core material.
- the T700S carbon fiber force which is the reinforcing fiber of the pre-prepared sheet B1
- the orientation direction of the carbon fiber is 90 °
- the sheet B1 was laminated so as to make two rounds of the aluminum core material.
- the pre-preed sheet A was wound around the outside of the pre-prepared sheet B1.
- the XN-80 carbon fiber which is the reinforcing fiber of the pre-prepared sheet A, was oriented in parallel with the longitudinal direction of the robot hand member, that is, in the 0 ° direction.
- the prepred sheet A was laminated so as to make eight turns on the outside of the prepred sheet B1.
- the cross prepreg sheet C was wound around the outside of the prepreg sheet A as the outermost layer.
- the T300 carbon fiber force which is the reinforcing fiber of the cross pre-prepared sheet C, is set so that it is parallel (0 ° direction) and perpendicular (90 ° direction) to the longitudinal direction of the robot hand member.
- the cross prepred sheet C was laminated so as to make one round on the outside.
- the prepreg laminate obtained from the above steps was heat-cured using an autoclave molding apparatus.
- An 80 mm wide, 2500 mm long, 1 Omm thick aluminum plate is used on the upper and lower surfaces of the pre-preda laminate, and a 35 mm wide, 2500 m long, 10 mm thick aluminum plate is mounted on the left and right sides of the pre-preda laminate.
- This was pressed and placed in a vacuum bag.
- the bag was evacuated and cured at 130 ° C. for 2 hours while applying a pressure of 0.69 MPa (7 kgfZcm 2 ) by an autoclave. After heating, the core material was removed to obtain a square pipe having a hollow structure with a height of 35 mm, a width of 80 mm, a length of 2500 mm, and a thickness of 2.5 mm.
- One end of the hollow square pipe was defined as a distal end, and the lower surface was removed within a range of 500mm from the distal end. At this time, the height of the member at the distal end is 7 mm, and the side plate is cut so that the height force of the robot node member in the area where the lower surface is removed decreases linearly toward the distal end did.
- the dimension in the width direction of the square pipe is 8 Omm from the aluminum core material with a width of 75 mm + the board thickness of 2.5 mm X 2.
- a hollow pipe having the same material and dimensions as in Example 2 having a hollow structure was formed, and the area where the lower surface was removed was as follows. That is, one end of the hollow square pipe was set as the distal end, and the lower surface was removed within a range of 1500 mm from the distal end. At this time, the height of the member at the distal end is 21 mm, and the height of the robot and handle members in a range where the lower surface is removed decreases linearly toward the distal end. The side plate was cut.
- a hollow structure having a closed section with a height of 35mm is provided in a range up to 1000mm in the longitudinal direction from the proximal end, and in a range of 1500mm on the distal side, the cross-sectional structure is reduced.
- a robot hand member having a U-shaped open cross-section from which the lower surface side element of the hollow structure was removed and a member height at the front end portion of 21 mm was obtained.
- a hollow pipe having the same material and dimensions as in Example 2 having a hollow structure was formed, and the area where the lower surface was removed was as follows. That is, one end of the hollow square pipe was set as the distal end, and the lower surface was removed within a range of 1000 mm from the distal end. At this time, the height of the member at the distal end is 21 mm, and the height of the robot and handle members in a range where the lower surface is removed decreases linearly toward the distal end. The side plate was cut. [0120] Due to the manufacturing process described above, a hollow structure with a closed section of 35 mm in height is provided up to 1500 mm in the longitudinal direction from the end on the hand side, and the cross-sectional structure is within 1 OOOmm on the tip side. Is a U-shaped open cross-section with the lower surface of the hollow structure removed, and a robot hand member with a height of 21 mm at the tip end is obtained.
- a hollow pipe having a hollow structure having the same material and dimensions as in Example 2 was formed, but the lower surface was removed over the entire area in the longitudinal direction as described below.
- the side plate is adjusted so that the height of the member at the distal end is 21 mm and the height of the member at the proximal end is 35 mm.
- the lower surface was removed by cutting. The height force of the robot hand member in the area where the lower surface is removed is reduced linearly toward the front end.
- the hollow structure has a U-shaped open cross-section in which elements on the lower surface side are removed, and the height of the member at the proximal end is
- a robot hand member having a height of 35 mm and a height of 21 mm at the tip end was obtained.
- a hollow square pipe having the same material and dimensions as in Example 2 was formed, but the member was used without cutting. That is, the robot hand member according to Comparative Example 4 is a square pipe having a hollow structure over the entire area in the longitudinal direction.
- a 2500 mm long aluminum plate with a rectangular cross section of 30 mm thickness and 75 mm width was prepared.
- the prepreg sheet B1 ' was used as a carbon fiber prepreg for orienting the reinforcing fibers in parallel with the longitudinal direction of the robot hand member.
- the prepreg sheet B1 was used as a carbon fiber prepreg for orienting the reinforcing fibers in a direction at 90 ° to the longitudinal direction of the robot hand member.
- the above-mentioned cross pre-prepared sheet C was used as the cross pre-preder wound around the outermost part of the robot hand member.
- a square pipe having a hollow structure for a robot hand member was formed using the pre-prepared sheet according to the following procedure.
- Table 6 shows the laminated configuration of the robot hand members according to Comparative Example 5.
- the pre-preda sheet B1 was wound around the outside of the aluminum core material. This At this time, the T700S carbon fiber force, which is the reinforcing fiber of the pre-prepared sheet Bl, makes 90 ° with the longitudinal direction of the robot hand member, that is, the orientation direction of the carbon fiber is in the 90 ° direction. B1 was laminated so as to make two rounds of the aluminum core material.
- the prepreg sheet B1 ' was wound around the outside of the prepreg sheet B1 in the 90-degree direction.
- the reinforcing fiber ie, the T700S carbon fiber opening botton
- the prepreg sheet B1 ′ in which the reinforcing fibers were oriented in the 0 ° direction was laminated so as to make seven rounds on the outer side of the 90 ° direction prepreg sheet B1 wound first.
- a cross pre-prepared sheet C was wound around the outside of the pre-prepared sheet B1, as the outermost layer.
- T300 carbon fiber force which is the reinforcing fiber of the cross pre-prepared sheet C, so that it is parallel (0 ° direction) and perpendicular (90 ° direction) to the longitudinal direction of the robot hand member.
- the cross pre-predator sheet C was stacked so as to make one round around the outside of the.
- the prepreg laminate obtained from the above steps was heated and cured using an autoclave molding apparatus.
- An 80 mm wide, 2500 mm long, 10 mm thick aluminum plate is pressed on the top and bottom of the prepreg laminate, and a 35 mm wide, 2500 m long, 10 mm thick aluminum plate is pressed on the left and right sides of the prepreg laminate.
- the bag was evacuated and cured at 130 ° C. for 2 hours while applying a pressure of 0.69 MPa (7 kgfZcm 2 ) by an autoclave.
- the core material was removed to obtain a square pipe having a hollow structure with a height of 35 mm, a width of 80 mm, a length of 2500 mm, and a thickness of 2.5 mm.
- the tip end side was machined into a tapered shape with the same dimensions as in Example 4. That is, one end of the hollow square pipe was set as the distal end, and the lower surface was removed within a range of 1000 mm from the distal end. At this time, the height of the member at the distal end is 21 mm, and the height of the robot hand member in a range where the lower surface is removed is reduced linearly toward the distal end. Cut.
- a hollow structure with a closed section of 35 mm in height is provided in a range up to 1500 mm in the longitudinal direction from the proximal end, and in a range of 1 OOOmm from the end, the cross-sectional structure is Is a U-shaped open cross-section from which elements on the lower side of the hollow structure are removed.
- a robot node member having a member height of 21 mm at the side end was obtained.
- PAN-based carbon fiber T700S tensile modulus: 230 GPa
- the width dimension of the square pipe is 80mm from the aluminum core material of 75mm width + 2.5mm x 2 thickness.
- a range of 200mm from the proximal end of the robot hand member was sandwiched from above and below by a fixing jig and held horizontally in a cantilever state.
- a fixing jig since the lower surface was cut off over the entire length, an epoxy-based adhesive was applied to a range of 200 mm near the upper surface of the upper surface, and this portion was attached to a fixing jig.
- a strain gauge was attached at a position 50 mm in the longitudinal direction from this fixed part, that is, 250 mm from the end of the robot hand near the hand.
- strain gauges were attached only to the upper surface of the robot hand member, and to the upper and lower surfaces of the other robot hand members.
- the deflection generated when a load was applied to the robot node member was measured by the following method.
- four 500 g weights and four positions of 10 mm, 710 mm, 1410 mm, and 2110 mm from the front end of the robot hand member was applied to the robot hand, and the deflection at the distal end of the robot hand member was measured.
- Table 7 shows the mass, natural frequency and bending in bending vibration of the robot node member based on the examples and comparative examples. 14 to 19 show bending vibration damping characteristics of various robot hand members.
- the robot hand member according to the second embodiment has a high natural frequency and extremely excellent bending vibration damping characteristics. As a result, the vibration of the robot hand is eliminated in a very short time, and the working efficiency can be improved. This involves placing carbon fibers with a high modulus of elasticity in the longitudinal direction of the robot hand member, reducing the height of the member by forcing the hand end, and removing the surface facing the work support surface. This is the performance obtained by lightening the tip of the hand member. Further, the robot node member according to the present invention has a high bending rigidity with a small deflection when a load is applied, and is suitable for use in transferring a large and heavy work piece.
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Abstract
Description
Claims
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2006512476A JP4980712B2 (ja) | 2004-04-20 | 2004-12-27 | ロボットハンド部材、その製造方法及びロボットハンド |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2004-124699 | 2004-04-20 | ||
| JP2004124699 | 2004-04-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2005102618A1 true WO2005102618A1 (ja) | 2005-11-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP2004/019521 Ceased WO2005102618A1 (ja) | 2004-04-20 | 2004-12-27 | ロボットハンド部材、その製造方法及びロボットハンド |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP4980712B2 (ja) |
| TW (1) | TW200539996A (ja) |
| WO (1) | WO2005102618A1 (ja) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008124421A1 (en) * | 2007-04-05 | 2008-10-16 | E. I. Du Pont De Nemours And Company | An end effector of a robot for transporting substrates |
| JP2008260278A (ja) * | 2007-03-20 | 2008-10-30 | Toray Ind Inc | 管状積層構造体 |
| EP2042453A1 (en) | 2007-09-28 | 2009-04-01 | Yushin Precision Equipment Co. , Ltd. | A grasping device |
| JP2009141091A (ja) * | 2007-12-06 | 2009-06-25 | Tokyo Electron Ltd | 基板保持具、基板搬送装置および基板処理システム |
| JP2009160685A (ja) * | 2008-01-04 | 2009-07-23 | Nippon Oil Corp | Cfrp製搬送用部材及びそれを用いたロボットハンド |
| WO2010086955A1 (ja) * | 2009-01-27 | 2010-08-05 | 新日本石油株式会社 | Cfrp製搬送用部材及びそれを用いたロボットハンド |
| CN103287005A (zh) * | 2012-02-29 | 2013-09-11 | 吉坤日矿日石能源株式会社 | 机械手用框架和机械手 |
| EP2810749A1 (de) * | 2013-06-07 | 2014-12-10 | FFT Produktionssysteme GmbH & Co. KG | Vorrichtung zur Verwendung beim Handhaben einer Last und Verfahren zum Herstellen einer derartigen Vorrichtung |
| CN104974521A (zh) * | 2014-04-01 | 2015-10-14 | 吉坤日矿日石能源株式会社 | 预浸料、碳纤维增强复合材料及机械手 |
| WO2016170567A1 (ja) * | 2015-04-20 | 2016-10-27 | 富士機械製造株式会社 | 製造作業機 |
| JP2023105858A (ja) * | 2022-01-20 | 2023-08-01 | 東京エレクトロン株式会社 | 基板支持部材、基板搬送装置及び基板支持部材の製造方法 |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5746483B2 (ja) * | 2010-07-13 | 2015-07-08 | 日本電産サンキョー株式会社 | 産業用ロボット |
| KR102177156B1 (ko) | 2014-03-10 | 2020-11-10 | 삼성전자주식회사 | 로봇 및 그를 구비한 기판 처리 장치 |
| CN104444351B (zh) * | 2014-11-07 | 2016-11-02 | 京东方科技集团股份有限公司 | 机械手臂及基板拾取装置 |
| KR200490752Y1 (ko) * | 2018-06-01 | 2020-02-11 | 조성원 | 진동 개선 구조를 갖는 플랫 패널 이송용 바 |
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- 2004-12-29 TW TW93141130A patent/TW200539996A/zh unknown
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| JP2008260278A (ja) * | 2007-03-20 | 2008-10-30 | Toray Ind Inc | 管状積層構造体 |
| WO2008124421A1 (en) * | 2007-04-05 | 2008-10-16 | E. I. Du Pont De Nemours And Company | An end effector of a robot for transporting substrates |
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| Publication number | Publication date |
|---|---|
| JP4980712B2 (ja) | 2012-07-18 |
| JPWO2005102618A1 (ja) | 2008-03-13 |
| TW200539996A (en) | 2005-12-16 |
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