Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
  • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
  • B21D5/00—Bending sheet metal along straight lines, e.g. to form simple curves
  • B21D5/02—Bending sheet metal along straight lines, e.g. to form simple curves on press brakes without making use of clamping means
  • B21D5/0209—Tools therefor
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
  • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
  • B21D37/00—Tools as parts of machines covered by this subclass
  • B21D37/04—Movable or exchangeable mountings for tools
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
  • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
  • B21D5/00—Bending sheet metal along straight lines, e.g. to form simple curves
  • B21D5/02—Bending sheet metal along straight lines, e.g. to form simple curves on press brakes without making use of clamping means
  • B21D5/0209—Tools therefor
  • B21D5/0236—Tool clamping
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
  • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
  • B21D5/00—Bending sheet metal along straight lines, e.g. to form simple curves
  • B21D5/02—Bending sheet metal along straight lines, e.g. to form simple curves on press brakes without making use of clamping means
  • B21D5/0209—Tools therefor
  • B21D5/0254—Tool exchanging
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
  • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
  • B21D37/00—Tools as parts of machines covered by this subclass
  • B21D37/14—Particular arrangements for handling and holding in place complete dies
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
  • Y10T483/00—Tool changing
  • Y10T483/17—Tool changing including machine tool or component
  • Y10T483/1729—Reciprocating tool machine tool [e.g., broaching machine, shaping machine, etc.]

Definitions

• the invention relates to a bending tool for insertion into a tool holder, and a gripping device for manipulating a bending tool, as specified in the claims 1 and 10.
• the AT 511 591 B 1 discloses a bending tool for insertion into a tool holder, comprising a tool body, an adjustable therein locking element for securing the bending tool in the tool holder, two of opposite side surfaces on the tool body accessible actuating surfaces which are arranged on at least one actuating element which between a basic position corresponding to the locking position of the locking element and an actuating position corresponding to the unlocking position of the locking element are adjustable, and wherein an adjustment of the actuating element is transmitted by means of a coupling means into a movement of the locking element.
• the coupling means extends from the actuating element to the locking element and contacts a transfer surface on the actuating element and a contact surface on the locking element and further the coupling means between the actuating element and locking element in the distance direction between the actuating element and Riegelele- ment guided displaceably in the tool body.
• the present invention has for its object to provide a bending tool, and an associated gripping device for manipulating the bending tool, which are as simple as possible in construction, in order to achieve a high longevity of the components.
• a bending tool is designed for insertion into a tool receptacle, comprising a tool body, a locking element coupled to an actuating element accessible outside the tool receptacle with a locking lug for securing the bending tool in the tool receptacle by engagement with a recess arranged in the tool receptacle.
• a basic position of the actuating element corresponds to a locking position of the locking element and an actuating position of the actuating element corresponds to an unlocking position of the locking element.
• the tool body has a first and a second gripping groove, which are arranged opposite one another on the tool body, wherein a first end portion of the actuating element in the region of the first gripping groove and a second end portion of the actuating element in the region of the second gripping groove is accessible.
• the first end portion of the actuating element has an actuating surface arranged on the front side.
• the second end portion of the actuating element has an actuating recess.
• the bending tool can be constructed as simply as possible, on the one hand costs can be omitted in the production of the bending tool and the reliability of the bending tool can be increased.
• Another advantage of the design according to the invention is that the actuating element can be actuated from two sides of the bending tool. Thus, the bending tool is universally applicable.
• the actuating element in the region of the second end portion is rotationally symmetrical, wherein the actuating recess is formed in the form of a circumferential groove.
• the advantage here is that the actuator can be easily produced by the rotationally symmetric shape by means of a turning tool.
• the circumferential groove has the advantage that an engagement in the groove by means of a gripping device can be done from all sides.
• the actuating element has a first actuating component, on which the first end portion of the actuating element is formed, and a second actuating component, on which the second end portion of the actuating element is formed. det, comprises, wherein the first actuating member and the second actuating member are joined together so that the locking element is clamped between the two actuating components.
• the second actuation component has a screw portion which is screwed into a threaded bore of the first actuation component, wherein a projection for clamping the locking element is subsequently formed on the screw portion.
• the advantage here is that the actuating components can thus be easily assembled, the actuating components are joined by a detachable connection to each other. Furthermore, the locking element can thereby be easily clamped between the two actuating components.
• the second actuating member has a guide sab section, which is rotationally symmetrical and which guide sab cut is received in a through hole in the tool body. The advantage here is that thereby a guide of the operating member in the tool body can be achieved, so that the operating member is slidably received in the tool train body.
• the guide sab cut is then arranged on the screw portion, wherein the outer diameter of the guide portion is greater than the outer diameter of the screw portion, and wherein subsequently to the guide portion, a circumferential annular projection is arranged.
• the locking element can be arranged as a boundary by this training at a first end of the guide section.
• the actuating element can be received displaceably in the tool body, wherein the displaceability is limited by the annular shoulder and by the actuating element, whereby unintentional release of the actuating element from the tool body can be prevented.
• first and the second gripping groove are dovetail-shaped and are arranged parallel to one another.
• An advantage of a dovetail-shaped design is that the gripping device can engage in alignment parallel to the gripping groove position independent in this.
• a simply constructed gripping device can be used to engage in the gripping groove.
• a centering recess widening towards the front is arranged on the tool body in each case in the center of the first and the second gripping groove.
• the advantage here is that the centering can cooperate with a corresponding positioning niervorsprung on the gripping device, whereby the bending tool can be positioned in a direction parallel to the gripping groove alignment.
• a centering recess widening towards the front that the tool body can be well centered to the gripping device.
• a compression spring is arranged, which acts on a rear side of the locking element.
• a gripping device for manipulating a bending tool comprises a first gripping arm and a second gripping arm which is displaceable in the clamping direction relative to the first gripping arm, which gripper arms are designed to engage in a gripping groove of the bending tool and to clamp the bending tool, characterized in that further comprises an unlocking organ for actuating an actuating element of the Biegewerkmaschinemaschines is formed, which unlocking relative to the gripper arms is leksverschietik normal to the clamping direction.
• the bending tool can be used by means of such a gripping device in a tool holder and can be secured against falling out.
• the unlocking member By means of the unlocking member, the bending tool can be secured against falling out of the tool holder by the gripper arm at any time, or the bending tool can be easily fastened in the tool holder.
• the unlocking member is held by means of a torsionally rigid longitudinal guide on the second gripping arm, whereby the unlocking member is longitudinally displaceably received on the second gripping arm, in particular by means of at least two guide pins, which cooperate with a slot in the unlocking.
• the advantage here is that the unlocking member is slidably received by the torsionally rigid longitudinal guide on the second gripping arm and can be controlled by an actuator.
• a structure by means of two guide pins which engage in a slot can be made simple and inexpensive.
• both the first gripping arm and the second gripping arm each have a recess in the middle of a gripping portion, through which recess two gripping fingers are respectively formed on the gripping arms, wherein the unlocking member is movable within the recesses.
• the bending tool according to the invention is adapted to the configuration of this gripping arm and can thus be easily absorbed by the gripping arm.
• a centering projection which cooperates with a centering recess of the bending tool, is arranged centrally on the gripping section of the first gripping arm. It can thereby be achieved that the bending tool can be well positioned relative to the gripping arm in order to be able to pick it up safely.
• a wear protection element is arranged at the front end portion of the first gripping arm, wherein a wear surface of the wear protection element is aligned parallel to the clamping direction.
• the second gripping arm is displaceable relative to the first gripping arm by means of a first actuator.
• the advantage here is that the gripping movement thereby independent of main movements of a robot arm on which the gripping device is mounted, can be performed.
• the unlocking member is longitudinally displaceable by means of a second actuator.
• the advantage here is that by the unlocking, which is controlled by an actuator, and thus at any time is free to move, the bending tool from the gripper arm at any time against falling out of the tool holder can be secured. Furthermore, this allows the bending tool to be easily fastened in the tool holder.
• a gripping nose is formed on the unlocking member for engagement in an actuating recess of the actuating element of the bending tool.
• Gripping device unlock the unlocking not only by pressing in, but that the unlocking can be operated by means of a pulling movement.
• the gripping device can receive the bending tool from both sides and thereby actuate the unlocking member to release the bending tool from the tool holder can.
• a handling surface for adjusting an actuating surface of the actuating element of the bending tool is formed on the unlocking.
• the advantage here is that the handling surface can serve as a stop in order to actuate the actuating element can.
• Fig. 1 is a side view of a schematically illustrated processing plant
• Fig. 2 is a perspective view of a bending tool
• 3 is a view of the bending tool in a sectional view along the section line III-III of Figure 2, with actuator in the actuation position ..
• 4 is a view of the bending tool in a sectional view along the section line III-III of Figure 2, with actuating element in the basic position ..;
• Fig. 5 is a plan view of the bending tool
• Fig. 6 is a perspective view of a gripping device for manipulating the bending tool
• FIG. 7 is a perspective view of the gripping device in half section
• Fig. 8 is an illustration of the gripping device in half section
• FIG. 9 shows a perspective view of the gripping device with bending tool in half section
• FIG. 10 is a perspective view of the gripping device with bending tool in one
• 11 is a perspective view of the gripping device with bending tool in one
• Fig. 12 is a perspective view of the gripping device with bending tool in one
• FIG. 13 is a perspective view of the gripping device with bending tool in one
• FIG. 14 is a perspective view of the gripping device with bending tool in one
• FIG. 15 is a perspective view of the gripping device with bending tool in a sectional view, wherein the gripping device in receiving step two is positioned at the first gripping groove;
• 16 is a perspective view of the gripping device with bending tool in one
• Fig. 1 shows a schematic representation of the side view of a processing anläge 1.
• the processing plant 1 comprises a press brake 2, which is provided for bending a sheet 3.
• the press brake 2 comprises a first adjustable pressing beam 4, in which a tool holder 5 for receiving a first bending tool 6 is formed. Furthermore, the press brake 2 comprises a second fixed pressing beam 7 on which also a tool holder 5 for receiving a bending tool 6 is formed.
• the sheet 3 to be bent is inserted for the bending operation between the bending tools 6 of the first 4 and the second pressing beam 7.
• the fixed in the first press bar 4 bending tool 6 respectively the first adjustable pressing bar 4 is moved by a press drive unit 8 in the vertical direction upwards or downwards.
• a computing unit 9 is provided, which may be coupled to an input and / or display unit 10. By the press drive unit 8, the first Press bar 4 between an upper end position 11 and a lower end position 12 are adjusted.
• the processing system 1 comprises a manipulation device 13, by means of which the sheets 3 to be processed can be manipulated automatically.
• the sheets 3 to be processed are placed manually in the press brake 2.
• the processing installation 1 comprises a gripping device 14.
• the gripping device 14 is held or moved by the manipulation device 13.
• a manipulation device 13 for holding the gripping device 14 as shown in Fig. 1, it can also be provided that, for example, a Schuanschlagiser not shown is adapted to manipulate the gripping device 14 and to perform a tool change can ,
• the bending tool 6 has a tool body 15 which deforms the bending sheet 3 to be bent during bending.
• the bending tool 6 can be positioned in the tool holder 5 in the horizontal displacement direction 16 along the clamping section of the tool holder 5.
• the bending tool 6 in the horizontal displacement direction 16 must be inserted laterally into the tool holder 5 of the press bar 4.
• the bending tool 6 is inserted in the vertical direction of insertion 17 in the tool holder 5.
• the bending tool 6 according to the invention and in the other figures is described in more detail.
• a problem-free insertion of the bending tool 6 in the vertical direction of insertion 17 can be made possible.
• the gripping device 14 according to the invention it is possible to manipulate the bending tool 6 accordingly and to be able to grip.
• a plurality of bending tools 6, which are of similar construction, can be positioned next to one another and join one another, and thus it can be achieved that bending edges 18 of individual bending tools 6 form a correspondingly long machining edge.
• Another possibility is that several different bending tools 6 are positioned in the tool holder 5. These different bending tools 6 are then used for various bending operations and can also be replaced individually. If bending tools 6 of different types for different working steps used, it is common that they are arranged at a certain distance from each other. In order to provide the most flexible processing plant 1 available, it is necessary that the bending tools 6 can be easily and quickly clamped in the tool holder 5 and taken out of this again.
• FIGS. 2 to 5 An embodiment of a bending tool 6 according to the invention is shown in different views in FIGS. 2 to 5, wherein the same reference numerals or component designations are used for the same parts as in the respective preceding figures. In order to avoid unnecessary repetition, reference is made to the detailed description in the respective preceding figures.
• Fig. 2 shows the bending tool 6 in a perspective view. It can be clearly seen that the main component of the bending tool 6 is formed by the tool body 15. In the tool body, an actuating element 19 is accommodated, which is coupled to a locking element 20.
• the locking element 20 serves to be able to use the bending tool 6 in the vertical direction of insertion 17 in the tool holder 5 and in this case as long as safe to hold in the tool holder 5 until the bending tool 6 can be clamped by the tool holder 5. However, this is only possible if all bending tools 6 necessary for a certain bending process are equipped in the tool holder 5.
• the locking element 20 has a locking lug 21, which can be moved outwards as required by displacing the locking element 20 relative to the tool body 15 and thus can engage in a corresponding recess 22 in the tool receptacle 5 in order to secure the bending tool 6 in the vertical insertion direction 17. Furthermore, it is also possible that the locking element 20 is moved in the tool body 15 such that the locking lug 21 does not engage in the recess 22 in the tool holder 5 and thus the bending tool 6 is released for moving in the vertical direction of insertion 17 out of the tool holder 5. Furthermore, it can be seen from FIG. 2 that the tool body 15 has a first gripping groove 23 and a second gripping groove 24, which are formed in the tool body 15.
• the gripping grooves 23, 24 are in this case arranged opposite each other on the tool body 15, wherein they extend in a direction parallel to the bending edge 18 longitudinal direction.
• the gripping grooves 23, 24 in this case have such a shape that the gripping device 14 can intervene in the bending tool - change in this, and thus equip the bending tool 6 on the press brake 2 and, if necessary, can disarm again.
• gripping grooves 23, 24 are designed in the form of a groove, but it is also conceivable that they are designed, for example, in the form of simple bores into which a gripping device 14 can engage.
• Figures 3 and 4 show the bending tool 6 in a sectional view along the section line III-III of FIG. 2.
• the actuating element 19 is in an actuation position in which it is pressed or activated.
• the locking element 20 is in an unlocked position 26 in which the locking lug 21 does not engage in the recess 22 in the tool 5 engages and thus the bending tool 6 in the vertical inserting direction 17 from the tool holder 5 can be moved out or into this.
• the actuating element 19 is in a basic position 27 in which it is not pressed or activated.
• the locking element 20 is in a lock s position 28.
• the locking lug 21 projects into the recess 22 of the tool holder 5, so that there is a positive connection between these two elements.
• the locking element 20 is by a compression spring 30th held in its locking position 28.
• the compression spring 30 is in this case arranged in a spring receptacle 31 in the tool body 15.
• the spring receptacle 31 may in this case be designed in the form of a simple bore, which is placed so that the compression spring 30 presses on a rear side 32 of the locking element 20. In other words, is located without external force, the locking element 20 in its locking s position 28 and thus secures the bending tool 6 against falling out.
• the locking element 20 is moved by means of the actuating element 19 coupled thereto. It is necessary here for the actuating element 19 to have, in the region of the first gripping groove 23, a first end section 32, on which an actuating surface 33 is arranged, in order to be actuated by a gripping device 14.
• the gripping device 14 can in this case press on the actuating surface 33, and thus press the actuating element 19 from its basic position 27 in its actuation position 25. Furthermore, it is provided that the actuating element 19 in the region of the second gripping groove 24 has a second end portion 34, in which an actuating recess 35 is formed.
• the gripping device 14 can in this case engage in the Betuschistsaus originallyung 35 and pull the actuator 19 to the outside, whereby in this case the actuator 19 can be moved from its basic position 27 in the actuation position 25.
• the bending tool 6 can be accommodated either on the first gripping groove 23 or on the second gripping groove 24 of the gripping device 14.
• the actuating recess 35 is designed in the form of a circumferential groove 36 into which the gripping device 14 can engage.
• the actuating element 19 is designed in two parts, wherein a first actuating component 37 and a second actuating component 38 are formed, between which the locking element 20 is received and which actuating components 37, 38 are connected to one another , It can be provided that the first actuating member 37 has the first end portion 32 and thus the actuating surface 33 is formed thereon. Furthermore, it can be provided that the second actuating component 38 has the second end portion 34 and thus the actuating recess 35 is formed thereon.
• the second actuating component 38 has a screw portion 39 which cooperates with a threaded bore 40 of the first actuating component 37. Furthermore, it can be provided that a projection 41 is subsequently provided on the screw section 39, by means of which the locking element 20 can be clamped between the first actuating component 37 and the second actuating component 38. In particular, it may be provided in this case that in the locking element 20, a through hole 42 is formed, through which protrudes the screw portion 39 of the second actuating member 38, whereby the locking element 20 can be absorbed between the two actuation members 37, 38.
• an internal hexagon 43 is formed in the second end portion 34 of the actuation element 19, which can be engaged by means of a hexagon socket wrench around the second actuation component 38 relative to the first actuation element 38 To turn actuating member 37 can.
• the second actuating component 38 subsequently to the screw portion 39 has a guide portion 44, which is likewise designed to be rotationally symmetrical.
• a through hole 45 is provided in the tool body 15, which extends from the first gripping groove 23 to the second gripping groove 24 and in which the actuating element 19 is received.
• the guide section 44 is received in the through-bore 45 and thus the actuating element 19 can be displaced back and forth between the basic position 27 and the actuating position 25.
• a clearance fit between guide portion 44 and through hole 45 so that the actuator 19 can be moved smoothly.
• a plain bearing bush or other material with good sliding properties is integrated in the through-bore 45 or on the guide section 44 in order to achieve a smooth running of the actuating element 19.
• an outer diameter 46 of the guide sab section 44 is selected as an outer diameter 47 of the screw portion 39. Furthermore, it can be provided that subsequent to the guide portion 44 on the second actuating member 38, a ring projection 48 is formed, which limits the displacement of the actuating element 19.
• a locking element receptacle 49 is provided in the tool body 15, which approximately has the outer shape of the locking element 20.
• the locking element 20 can be received in the tool body 15.
• the displaceability of the actuating element 19 or, contiguous thereto, of the locking element 20 is limited on one side by the fact that the locking element 20, in particular its rear side 31, bears against a bottom surface 50 of the locking element receptacle 49. This is the case when the actuating element 19 is activated by the gripping device 14 and thus is in its actuation position 25.
• the displaceability of the actuating element 19 is limited by the fact that the actuating element 19, in particular the annular projection 48, rests in an actuating element receptacle 51, more precisely at its bottom surface 52.
• the locking element receptacle 49 is formed in the region of the first gripping groove 23.
• the actuator selementauf take 51 is formed in the region of the second gripping groove 24.
• the spring seat 30 is arranged directly in the bottom surface 50 of the locking element receptacle 49.
• At least one clamping recess 53 is formed in the tool body 15, in which a clamping jaw 54 of the tool holder 5 can engage and thus the bending tool 6 can be fixed in the tool holder 5.
• the locking element 20, in particular at the locking lug 21 has a chamfer 55, which is chamfered in the direction of receiving portion 56 of the bending tool 6. It can thereby be achieved that the bending tool 6 can be inserted from below into the tool receptacle 5 in the vertical insertion direction 17, without the actuating element 19 having to be actuated by the gripping device 14, but rather by the bevel 55 and thus the tool receptacle 5 the locking element 20 is pressed from its locking position 28 in its unlocking s position 26.
• FIG. 5 shows a plan view of the bending tool, wherein, in conjunction with FIG.
• a centering recess 57 is formed in the tool body 15 both in the region of the first gripping groove 23 and in the region of the second gripping groove 24 Bending tool 6 facilitated by the gripping device 14. In particular, correct positioning of the bending tool 6 relative to the gripping device 14 is facilitated by the centering recess 57. As can be seen from FIG. 5, it can be provided here that the centering recesses 57 are arranged centrally in the direction of an axis of symmetry 58 of the bending tool 6.
• FIGS. 6 to 8 An embodiment of a gripping device 14 according to the invention is shown in different views in FIGS. 6 to 8, wherein the same reference numerals or component designations are used for the same parts as in the respective preceding figures. In order to avoid unnecessary repetition, reference is made to the detailed description in the respective preceding figures.
• FIG. 6 shows a perspective view of the gripping device 14, which is designed for manipulating the bending tool 6, in particular for inserting the bending tool 6 into the tool holder 5 or for removing the bending tool 6 from the tool holder 5.
• FIG. 7 also shows a perspective view of the gripping device 14, which is shown in a half-section to release the view of internal parts.
• FIG. 8 shows a half section of the gripping device 14.
• the gripping device 14 has a first gripping arm 59 and a second gripping arm 60.
• the first gripping arm 59 is arranged here on a first gripping arm receiving means 61 and the second gripping arm 60 is arranged on a second gripping arm receiving means 62.
• the second gripper arm receptacle 62 has a first ac tuator 63, whereby the second gripping arm 60 is displaceable in a clamping direction 64 relative to the first gripping arm 59.
• the first actuator 63 the two gripper arms 59, 60 are moved towards each other or removed from each other.
• the gripping device 14 has an unlocking member 65, which is received between the two gripping arms 59, 60. It can be provided here that a recess 66 is formed both on the first gripping arm 59 and on the second gripping arm 60, wherein the unlocking member 65 can be moved in the free space created by the recess 66.
• the recess 66 may extend from a gripping portion 67 and a front end portion 68, respectively, to a rear gripping arm portion 69.
• each have two gripping fingers 70 are formed.
• the gripping fingers 70 have, as can be seen particularly well in FIG. 8, a dovetail-like shape, so that they can engage in the first gripping groove 23 or in the second gripping groove 24 of the bending tool 6. Characterized in that the second gripping arm 60 is displaceable relative to the first gripper arm 59 in the clamping direction 64, in this case the bending tool 6 can be grasped or released again.
• first gripper arm 59 and the second gripper arm 60 are formed substantially symmetrically with respect to a median plane 71, wherein the two gripper fingers 70 of a gripper arm 59, 60 are arranged at the same distance from the median plane 71 and the recess 66 exactly is arranged centrally on the center plane 71. Furthermore, it can be provided that the unlocking member 65 by means of a torsionally rigid
• Longitudinal guide 72 is disposed on the second gripping arm 60, so that it can be moved in the direction of movement 73 relative to the first gripping arm 59 and the second gripping arm 60.
• the rotationally rigid longitudinal guide 72 can be realized by means of two guide pins 74 which project transversely through the second gripping arm 60 and interact with a slot 75 in the unlocking member 65.
• the gripping device 14 comprises a second actuator 76, by means of which the unlocking member 65 can be moved in the direction of movement 73 relative to the second gripping arm 60.
• Both the first actuator 63 and the second actuator 76 can be realized for example in the form of a pneumatic or hydraulic cylinder. Alternatively, it is also conceivable, for example, that an electric actuating cylinder or a linear motor is used as the actuator.
• the unlocking member 65 is adapted to operate the actuator 19 of the bending tool 6 and thus to be able to move the locking element 20 between its unlocked position 26 and its locking s position 28. As a result, the bending tool 6 inserted into the tool holder 5 can be taken out of it again.
• the unlocking member 65 has a handling surface 77 which can cooperate with the actuating surface 33 of the actuating element 19 and thus can move this.
• the actuation surface 77 acts on the actuation surface 33 when actuated as a pressure element.
• the unlocking member 65 has a gripping nose 79 in a front end region 78 in which the manipulation surface 77 is arranged, which engages in the actuation recess 35 of the actuation element 19 can engage and thus can move the actuator 19 from its normal position 27 in its operating position 25 by a pulling movement.
• the gripping nose 79 is formed semicircular, so that the actuating recess 35, which is formed as a circumferential groove 36 on the rotationally symmetrical second actuating member 38, can be easily grasped by the gripping nose 79.
• a centering projection 80 is arranged, which can engage in the centering recess 57 of the bending tool 6.
• the bending tool 6 can be positioned relative to the gripping device 14.
• the centering projection 80 is formed so that it has a chamfer 81 on both sides, which corresponds to the expansion in the centering recess 57.
• the centering projection 80 in the form of a flat iron with corresponding
• the gripping device 14 includes a wear protection element 83, which is arranged in the front end portion 68 of the first gripping arm 59.
• the wear protection element 83 has a wear surface 84.
• the wear protection element 83 is fastened by means of fastening means 85 on the first gripping arm 59.
• FIGS. 9 to 16 show an interaction of the bending tool 6 according to the invention and the gripping device 14 according to the invention in different views, the same reference numerals and component designations being used for the same parts as in the respective preceding figures. In order to avoid unnecessary repetition, reference is made to the detailed description in the respective preceding figures.
• FIGS. 9 and 10 show, in a perspective view with half section and in a top view, the interaction between the bending tool 6 according to the invention and the gripping device 14 according to the invention.
• the centering projection 80 is formed such that it cooperates with the centering recess 57 and thereby the bending tool 6 can be positioned in the horizontal displacement direction 16 to the gripping device 14.
• the centering recess 57 on the tool body 15 is designed such that the actuating element 19 is freely accessible from above and from below, and thus the unlocking member 65 can be moved freely in the centering recess 57.
• Fig. 9 the second actuator 76 for moving the Entriegelungsorganes 65 is shown schematically.
• a first method step the gripping device 14 is moved to the bending tool 6 such that the gripping fingers 70 of the first and the second gripping arm 59, 60 are positioned within the second gripping groove 24.
• the gripping device 14 is in this case by means of Pulsations device 13 in a subsequent process step shifted down so that the gripping fingers 70 of the first gripping arm 59 with the second gripping groove 24 are engaged and touching each other.
• a further method step as shown in Fig.
• the second gripping arm 60 by means of the first actuator 63 in the clamping direction 64 moves upward and thereby moved relative to the first gripping arm 59, so that both the gripping fingers 70 of the first gripping arm 59th as well as the gripping fingers 70 of the second gripping arm 60 with the second gripping groove 24 are engaged.
• the unlocking member 65 fastened to the second gripping arm 60 is simultaneously displaced upward so that the gripping nose 79 is brought into engagement with the actuating recess 35.
• the unlocking member 65 can now be pulled away by the second actuator 76 in a direction away from the bending tool 6, whereby the actuating element 19 and coupled thereto the locking element 20 from its locking s position 28 shifted to its unlocked position 26 becomes.
• the bending tool 6 can be freely moved out of the tool holder 5 or used in this.
• FIGS. 14 to 16 A further method sequence for clamping or unlocking a bending tool 6 is shown in FIGS. 14 to 16, in which case the gripping device 14 engages in the first gripping groove 23 of the bending tool 6.
• the gripping device 14 engages in the first gripping groove 23 of the bending tool 6.
• the gripping device 14 is moved toward the bending tool 6 such that the gripper fingers 70 of the first and the second gripping arm 59, 60 are positioned within the first gripping groove 23.
• the gripping device 14 is moved downward by means of the manipulation device 13 in a subsequent method step, so that in that the gripping fingers 70 of the first gripping arm 59 engage the first gripping groove 23 and contact each other.
• the second gripping arm 60 is moved upwards in the clamping direction 64 by means of the first actuator 63 and thereby displaced relative to the first gripping arm 59, so that both the gripping fingers 70 of the first gripping arm 59 as well as the gripping fingers 70 of the second gripper arm 60 with the first gripping groove 23 are engaged.
• the unlocking member 65 fastened to the second gripper arm 60 is simultaneously displaced upward so that the gripping nose 79 is brought into engagement with the actuation recess 35.
• the unlocking member 65 can now be pressed by the second actuator 76 in a direction facing the bending tool 6, whereby the actuating element 19 and thus coupled the locking element 20 from its locking s position 28 in its unlocking s position 26 is moved.
• the bending tool 6 can be freely moved out of the tool holder 5 or used in this.
• the actuating element 19 can now be brought back into its basic position 27 in the reverse order and the gripping device 14 can be brought out of engagement with the bending tool 6.
• Bending tool 32 first end portion actuation second pressing beam element
• Manipulation device 37 first actuating component

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• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Bending Of Plates, Rods, And Pipes (AREA)
• Manipulator (AREA)

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Publications (2)

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ID=54238158

Family Applications (1)

Country Status (4)

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Family Cites Families (6)

• 2014
  • 2014-08-12 AT ATA50568/2014A patent/AT515526B1/de active
• 2015
  • 2015-08-11 WO PCT/AT2015/050197 patent/WO2016023057A1/fr not_active Ceased
  • 2015-08-11 US US15/502,627 patent/US11260442B2/en active Active
  • 2015-08-11 EP EP15771847.9A patent/EP3180138B1/fr active Active

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