US3324493A - Brushing and polishing machine - Google Patents

Brushing and polishing machine Download PDF

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Publication number
US3324493A
US3324493A US496022A US49602265A US3324493A US 3324493 A US3324493 A US 3324493A US 496022 A US496022 A US 496022A US 49602265 A US49602265 A US 49602265A US 3324493 A US3324493 A US 3324493A
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Prior art keywords
movement
tool
slide
support
workpiece
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US496022A
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English (en)
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Kraft Paul
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WMF Group GmbH
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WMF Group GmbH
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
    • F15B11/16—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B19/00—Single-purpose machines or devices for particular grinding operations not covered by any other main group
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B19/00—Single-purpose machines or devices for particular grinding operations not covered by any other main group
    • B24B19/008—Single-purpose machines or devices for particular grinding operations not covered by any other main group for grinding ceramics, pottery, table ware
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B27/00—Other grinding machines or devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B29/00—Machines or devices for polishing surfaces on work by means of tools made of soft or flexible material with or without the application of solid or liquid polishing agents
    • B24B29/005—Machines or devices for polishing surfaces on work by means of tools made of soft or flexible material with or without the application of solid or liquid polishing agents using brushes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B47/00—Drives or gearings; Equipment therefor
    • B24B47/02—Drives or gearings; Equipment therefor for performing a reciprocating movement of carriages or work- tables
    • B24B47/04—Drives or gearings; Equipment therefor for performing a reciprocating movement of carriages or work- tables by mechanical gearing only
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B47/00—Drives or gearings; Equipment therefor
    • B24B47/02—Drives or gearings; Equipment therefor for performing a reciprocating movement of carriages or work- tables
    • B24B47/06—Drives or gearings; Equipment therefor for performing a reciprocating movement of carriages or work- tables by liquid or gas pressure only
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B7/00—Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor
    • B24B7/02—Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor involving a reciprocatingly-moved work-table
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/30—Directional control
    • F15B2211/305—Directional control characterised by the type of valves
    • F15B2211/3056—Assemblies of multiple valves
    • F15B2211/30585—Assemblies of multiple valves having a single valve for multiple output members
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/30—Directional control
    • F15B2211/32—Directional control characterised by the type of actuation
    • F15B2211/321—Directional control characterised by the type of actuation mechanically
    • F15B2211/324—Directional control characterised by the type of actuation mechanically manually, e.g. by using a lever or pedal
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/70—Output members, e.g. hydraulic motors or cylinders or control therefor
    • F15B2211/71—Multiple output members, e.g. multiple hydraulic motors or cylinders
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/70—Output members, e.g. hydraulic motors or cylinders or control therefor
    • F15B2211/78—Control of multiple output members

Definitions

  • This invention relates to a machine for polishing of hollow-ware workpieces, particularly of a nonsymmetrical shape with respect to an axis of rotation, with at least one cylindrical polishing means being mounted onto a tool spindle, with at least one workpiece carrier being mounted swinga'bly around at least one swing axis, with a workpiece support being driveable parallel to the tool spindle and with a controllable support adjusting device being operated by an operating lever which is operated by either hand or foot and with a feeding device for workpieces also being operated by an operating lever which is operated by either hand or foot.
  • a machine of the above-identified type in which two or more groups of polishing tool are provided, whereby in each group several polishing tools by means of polishing wheels are mounted coaxially on a common horizontal tool spindle and whereby the tool spindles of both groups operate both parallel to and spaced from each other.
  • Each polishing wheel of the one group of polishing tools lies, together with one polishing wheel of the second group of the polishing tools, in a common vertical plane.
  • Beneath the group of polishing tools in each vertical plane there is provided one workpiece carrier for holding the workpieces.
  • the workpiece carriers are arranged on a common support which is swingable selectively beneath the first or second group of polishing tools by means of a hand lever mechanism.
  • a workpiece feeding device which preferably is a foot pedal operated lever system
  • the support can be lifted toward the respective groups of polishing tools to move the workpieces toward the polishing wheel.
  • the support is by means of a hand lever operable by solely manual force parallel to the tool spindles. A movement in a transverse direction, while maintaining the engagement of a given group of polishing tools, is not possible.
  • the workpiece carriers also by means of hand levers, are swingable around axes which are parallel to the plane of the support movement. In this manner small workpieces, for instance, silverware and the like, can be worked on by said machine.
  • Attachments for grinding machines with a horizontal grinding wheel spindle are also known by which the work piece is swinga'ble around a vertical axis. Said attachments are provided for working on symmetrical workpieces. However, said attachments cannot be controlled by the controls of the grinding machine, but only by separate control means. A central control, positioned in one place is not possible with such machines. The operation of said machine is therefore very complicated and poorly arranged for eifective use. Accurate work on surfaces of nonsymmetrical workpieces cannot be carried out.
  • the support of the machine of the invention is constructed as a cross slide with a pressure means drive, it is possible to bring into polishing position any desired, large surfaced, workpiece of all contours, for instance, ovals, triangles, asymmetrical parts. Consequently there is very little deadtime when working with the machine of the invention. No force worth mentioning is needed by the person who operates the movement of the support so that the person does not get tired.
  • the support moving device of the machine of the invention' which controls the pressure-means drive, it is possible through operation of the operating lever to adjust accurately the speed of the support means and with it the speed of the workpiece at any instant and at any place.
  • the direction of movement of the support can be reversed at any desired place in its path of movement through suitable actuation of the operating lever. Consequently it is possible to move a desired area on the workpiece quickly and accurately beneath the polishing tool and to work said area individually, for instance, by means of a back and forth moving of the support and of the workpiece for only a distance as needed. It is possible to also polish locally limited recesses of the workpiece. It is possible for the machine of the invention to accomplish a finish with a pattern on a workpiece which looks like manual labor.
  • the workpiece carrier of the machine is swingable around an axis which is vertical to the plane of movement of the cross slide. It is therefore possible, during the polishing of a workpiece, to change the direction of the stroke.
  • polishing with cross strokes can be made.
  • the cooperating characteristics of the cross slide support, said support providingv a speed control by means of a control of the support drive, and a reversal of the slide at any desired point in its path of movement, and a rotation of the workpiece carried around an axis vertical to the plane of movement of the slide, for the first time make it possible to obtain all the requirements of a polishing machine for hollow workpieces having a relatively large surface.
  • the machine of the invention is built simply and sturdily and therefore easy to operate and reliable during operation.
  • the machine of the invention can be provided with several polishing tools and accordingly can be provided with several workpiece carriers on the support. Then it is possible to work on several workpieces at the same time and only one operator is needed.
  • the machine of the invention is therefore very good for use in mass production.
  • the workpiece carrier is rotatable around the swivel axis through at least 180.
  • the polishing tool works well on all the surfaces facing same, however, the other surfaces facing opposite the movement of the dish were not worked well.
  • a rotation of 180 of the workpiece around the axis being in vertical position to the plane of the movement of the support slide the orientation of the surfaces of the workpiece is changed.
  • all the places which were polished only insufiiciently at the first polishing are repolished.
  • the direction of the approach is reversed at the second polishing in comparison to the first polishing. Because of this the polished surface has anespecially effective finish.
  • An effective embodiment of the polishing machine of the invention is accomplished by means of the workpiece carrier which can be fixed in any desired angular position.
  • the workpiece carrier which can be fixed in any desired angular position.
  • the machine according to the invention is constructed to provide that the workpiece carrier is additionally rotatable with respect to an axis which is parallel to the plane of movement of the cross slide and vertical to the tool spindle.
  • the working zone of the surface of the workpiece can be directed in a way that the desired working surface is presented to the polishing tool.
  • the machine of the invention can also be constructed in a way that the direction of rotation of the poli-shing'tool is reversible. Because of the reversible direction of rotation of the polishing tool, shadows in hollow-workpieces can be polished, which were not workedor which were badly worked during the original direction of rotation. Furthermore, a special stroke effect can be obtained bypolishing the surface of a workpiece in two opposed directions of working by means of a reversed direction of rotation of the polishing tool.
  • FIGURE 1 is a front elevational view of the machine of the invention in a schematic presentation.
  • FIGURE 2 is a side elevational view according to FIG- URE 1 also in a schematic presentation.
  • FIGURE 3 is a partial view of the upper slide with a swingable workpiece carrier.
  • FIGURE 4 is a partial view of a polishing tool in a swung position.
  • FIGURE 5 is a schematic view of the construction and of the operation of the pressure-means drive of the cross slide support of the machine of the invention and one example of the support adjusting device according to the invention.
  • FIGURE 6 is a cross sectional view of the support adjusting device according to FIGURE 5.
  • the two side supports 12 are at the right and left sides afiixed to the box shaped, welded base support 11. 011 said side supports the swingable upper part 2 is mounted in two pillow blocks 13.
  • the swingable upper part holds three driving motors 1 which drive by means of V-belts 14 three polishing tools which are constructed as polishing brushes 4.
  • the polishing brushes 4 are arranged on a tool spindle which is fastened to a swingable upper part 2 in form of a shaft 15.
  • the end of the shaft remote from the polishing brush has a V-belt pulley 16 for the V-belt 14 of the driving motor 1.
  • the brushes 4 can be moved toward or away from the workpiece W on the rotatable workpiece carrier 5 by means of the rocker 9 for the feeding device of the brushes, which is operated by foot.
  • the spring like butter 10 At the rearward end of the swingable upper part 2 there is provided the spring like butter 10 which limits the upward movement of the brushes.
  • a counterweight 18 is arranged above the point of rotation 17 of the swingable upper part 2 and said counterweight balances the weight of the upper part 2.
  • the machine of the invention is provided with a support comprising a cross slide 6, 7.
  • One slide 7 for lengthwise movement is positioned on the base support 11.
  • Said slide is moved on two guides 20 by means of rolls 19.
  • the drive of the slide 7 for lengthwise movement is achieved by means of a hydraulic cylinder 21 which is here built into said slide.
  • the slide 6 for crosswise movement is built onto the lengthwise moveable slide 7. Said slide also moves on two rod-like guides 23 by means of four rolls 22.
  • the drive is achieved by means of a built-in hydraulic cylinder 24.
  • the slide 6 for crosswise movement has built in a rotary drive 25 for the workpiece carrier 5.
  • the drive of .the workpiece carrier is accomplished by means of an electric motor 26, through a gear 27 and a chain 23.
  • the rotatable movement of the workpiece carrier is limited by means of limit switches 29 which can be used selectively.
  • FIGURE 1 shows a schematic'view of one example of the construction of the support adjusting device. It shows two 4 way, 3 position hydraulic valves 30 and 31. Each of the hydraulic valves 30 and 31 through one of its four outlets is connected to a hydraulic pressure supplying apparatus (not shown) to produce the drive pressure. The hydraulic apparatus for instance is arranged at one side of the machine. A second outlet of each of the hydraulic valves 30 and 31 is connected' to a return path leading back to the hydraulic apparatus for idling operation. The remaining two outlets of each hydraulic valve 30 and 31 are connected respectively with both ends of each one of the hydraulic cylinders 24 and 21.
  • Each hydraulic valve 30 and 31 is respectively adjustable and controllable by means of operating levers 33 and 34 which are operated by hand. Depending on the position of the operating lever 33 and 34, one or the other end of each hydraulic cylinder 24 and 21 is supplied with pressure fluid. At the same time, the corresponding cylinder ends are connected to the return path and the pistons within the cylinder are connected with the slides 6 and 7 by suitable piston rods which are moved by the drive fluid.
  • Each of the hydraulic valves 31 and 31 can be put in neutral position at which both ends of the corresponding hydraulic cylinders 24 and 21 are completely separated from the hydraulic pressure source.
  • the slide 6 or 7 which is driven by the corresponding hydraulic cylinder then stops. The movement of the slides 6 and 7 can thus be controlled independently from each other. A return movement of the slide is possible at any time by means of a movement of the operating lever 33 or 34 and a resulting appropriate adjustment of the hydraulic valve 30 or 31.
  • FIGURES 5 and 6 A second example of construction of the support moving device of the slide 6 and 7 is shown schematically in FIGURES 5 and 6.
  • the pressure means drives of both the slides 6 and 7 are controlled by hand by means of only one operating lever 45.
  • the support moving device has a control valve 46 at which four slide valves 47, 48, 49, 50 are provided which are parallel to each other, which are spaced at intervals of about 90 around a circle and which are constructed identically.
  • the slide valves 4750 are positioned lengthwise movably, each in a cavity 52 of the common valve body 51, and extend each with one end 47', 48, 49 and 50' at one outer surface 51 of the valve body 51.
  • each cavity 52 is connected .to a conduit 57 which leads by means of an opening 56 to the source of pressure. Furthermore each cavity 52 is connected by means of an opening 58 to the pressure-means return path 59 which leads back to the hydraulic pressure source.
  • the conduits 57 and 59 are shown in cross sectional view in FIGURE 6. Said conduits are omitted from FIGURE 5 for clarity of illustration.
  • each cavity 52 is connected to one end of one of the hydraulic cylinders 21 or 24 by means of an opening 60 and conduit 61,
  • FIGURE 5 shows that the cavities positioned diametrically opposite each other, in which the slide valves 47 and 49 are positioned, are connected with the ends of the hydraulic cylinder 24.
  • the two other cavities, also positioned diametrically opposite each other, are connected with the hydraulic cylinder 21.
  • the slide valves 47 to 50 in their respective neutral middle positions block all the paths as shown in FIGURE 6. According to the deflection from the neutral position of the operating lever 45, operated by hand, and with it connected the slope of plate 54, the slide valves 47 to 50 are pushed downwardly or upwardly. For instance with the operating lever 45 as shown in FIGURE 6 deflected to the right, the slide valve 47 goes down and the slide valve 49 goes up.
  • the slide valve 47 renders thereby the openings 56 and 60 at least partially free, so that driving fluid can flow through the conduit 61 into the left end of the hydraulic cylinder 24 (FIGURE 5).
  • the slide valve 49 opens a passageway through the openings 58 and 60, so that the driving fluid can flow from the right end of the hydraulic cylinder 24 through the conduit 63 into the return path conduit 59.
  • the slide 6 is then, as shown in FIGURE 5, moved rightwardly.
  • the control members 32 for the electrical parts are affixed at the side of the control console 8. Besides the switches for the tool motors and the rotatable drive of the workpiece carrier, main switches and emergency switches are provided at the control console. The other parts of the electrical circuit are placed in a special switch cabinet (not illustrated).
  • the brushing and polishing with the machine of the invention works as follows:
  • the three workpieces W are put into three forms which are arranged on three rotatable carriers 5 and are held in place by means of vacuum being produced by a vacuum pump (not illustrated) which is attached to the machine. Both slides 6, 7 are rendered operative by operating the support moving device, that is, said slides are moved beneath the brushes 4. After the brushes are Working the operator brings together the brushes and the workpiece by means of the rocker 9 and the rod 35.
  • the operator starts the Work at the far edge 36 of the work-piece and sweeps over the workpiece with back and forth movements. Thereby it is possible, because of the practical construction of the machine, to pass intensively over the places 37 which are hard to reach at first and then to give the entire workpiece a pass. Through this procedure, surfaces are produced which are equal to handbrushed or hand-polished surfaces.
  • the workpiece carrier of FIGURE 1 can be constructed pivotally (FIGURE 3).
  • the carrier 40 of the workpiece carrier is built with a hinged joint 41 at its upper end, in which the workpiece carrier 5 is pivotally mounted.
  • a post 42 is provided which is operated by a hydraulic cylinder (not illustrated) which is built into the cross slide 6.
  • guides, not shown, of any convenient type may be provided at locations spaced circumferentially less than from the post 43.
  • the post 43 the movement of which is coupled with the post 42, is offset to the post 42 by 180.
  • FIGURE 4 The brushing and polishing tools 4 in FIGURE 4 are shown in swung position. In such swinging, the tool carrier is movedaround a point of pivoting providedon an axis of the grinding spindle. The best position for said point of pivoting lies at 44in the rotational axis of the brushing and polishing'tools.
  • the parts necessary for the swinging of thebrushing' and polishing tools are not illustrated in FIGURE 4, because said means are known.
  • the operating of the tool feeding device can be done by means of a hand lever instead'of the rocker 9 which is operated by foot.
  • the operator controls the entire machinerwith two hand levers whereby, for instance, the left hand operates the hand lever for the feeding of the polishing brushes and the right hand operates the operating lever for the support moving device.
  • the machine of the invention in such a way that the polishing tools are not moved to the workpiece by means of a feeding device but that the cross slide with the workpiece is liftable to the polishing tool for feeding.
  • a machine for polishing workpieces, particularly hollow-ware workpieces of a nonsymmetrical shape comprising:
  • tool feeding means mounted on said base and a tool spindle mounted on said tool feeding means and having mounted thereon a cylindrical polishing tool;
  • first manual control means operatively connected with said tool feeding means for bringing the tool and the workpiece into coacting relation
  • support means mounted on said base for movement in a plane parallel to the tool spindle axis, said support means comprising cross slide means so that said support means is movable in said plane in a first direction parallel to the tool spindle axis and in a'second direction perpendicular to the tool spindle axis;
  • fluid pressure drive means coupled to said support means for selectively moving the same in said first and second directions;
  • a workpiece carrier and means rotatably mounting said carrier on said support means for rotation about an axis perpendicular to said plane;
  • second control means for controlling said fluid pressure drive means, said second control means having manually operable actuating means which controls said fluid pressure drive means such that the speed of movement of said support and said workpiece carrier is proportional to the deflection from neutral position of said actuating means, said second control means permitting the movement of said support and the workpiece mounted thereon to be reversed at any selected location thereof.
  • said cross slide means comprises a first slide mounted on said base for movement thereon in one of said directions and a second slide mounted on the first slide for movement in a direction perpendicular to the direction of movement of said first slide.
  • the means mounting said workpiece carrier on said cross slide means includes a pivot having an axis which is parallel to the plane of movement of said support means and transverse to the tool spindle axis, and adjustment means for moving said workpiece carrier about said pivot axis and fixing the carrier at any desired angle.
  • said cross slide means includes a first slide mounted on said base for movement thereon and a second slide mounted on said first slide for movement thereon, one of said slides being mounted for movement parallel to the spindle axis and the other of said slides being mounted for movement perpendicular to the spindle axis; and
  • said fluid pressure drive means comprises a first pressure cylinder mounted on said base for controlling the movement of said first slide and a second pressure cylinder mounted on said first slide for controlling the movement of said second slide.
  • said second control means includes control valve means to control said first and second pressure cylinders, said control valve means being operated by a single manually operable lever, said lever being mounted for swinging movement in all directions;
  • control valve means includes a housing having four cavities therein;
  • axes of the slide valves being parallel to each other and being spaced in a circular pattern at degree intervals;
  • spring means biasing each of said slide valves in a direction to cause one end of said valves to extend beyond one end of said valve housing;
  • control lever being mounted to said end of said valve housing centrally located among the extended ends of said valves by means of a ball joint to permit universal pivotal movement of said operating lever;
  • each of said cavities being provided with a supply port connected to a common pressure source, and a return port and a load port, and means connecting the load ports of two diametrically opposed slide valves to said first pressure cylinder, and means connecting the load ports of the other two diametrically opposed slide valves to the second pressure cylinder;
  • said slide valves being maintained in a middle neutral position when the plate means is located in a plane perpendicular to the slide valve axes, all valve ports being closed when said slide valves are in said neutral position; lengthwise movement of each slide valve in one direction connecting the supply and load ports, and lengthwise movement in the opposite direction connecting the load and return ports; movement of said plate means by said operating lever causing the slide valves which are diametrically opposite each other to be simultaneously moved in opposite directions whereby one slide valve interconnects one end of a pressure cylinder with the pressure source while the other slide valve interconnects the 15 other end of the same pressure cylinder with the return port.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Ceramic Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Engineering & Computer Science (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
US496022A 1964-10-16 1965-10-14 Brushing and polishing machine Expired - Lifetime US3324493A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEW0037769 1964-10-16

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US3324493A true US3324493A (en) 1967-06-13

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US (1) US3324493A (de)
JP (1) JPS5128876B1 (de)
AT (1) AT254736B (de)
BE (1) BE670622A (de)
DK (1) DK140248B (de)
ES (1) ES318444A1 (de)
GB (1) GB1119174A (de)
SE (1) SE321163B (de)

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3439371A (en) * 1968-01-02 1969-04-22 Wmf Wuerttemberg Metallwaren Brushing or polishing machine
US3594954A (en) * 1967-10-04 1971-07-27 Wurttembergische Metallwarenta Device for copying on polishing or brushing machines for hollow articles
US3717893A (en) * 1970-09-11 1973-02-27 G Carlson Automatic tape-controlled work finishing machine
US20060200921A1 (en) * 2005-03-08 2006-09-14 Quanta Display Inc. Cleaning apparatus
CN103465146A (zh) * 2013-09-03 2013-12-25 宇环数控机床股份有限公司 一种多工位立式抛光机
CN103831695A (zh) * 2014-03-28 2014-06-04 中国科学院自动化研究所 大型自由曲面机器人打磨系统
CN104875087A (zh) * 2015-06-03 2015-09-02 佛山思科特光学科技有限公司 一种玻璃扫光机
CN105598777A (zh) * 2016-03-08 2016-05-25 济南大学 一种用于磨具的工件夹持结构、循迹式铸件磨边机及方法
CN106808330A (zh) * 2017-03-09 2017-06-09 郑九新 一种五金板高效压实打磨一体化设备
CN108908032A (zh) * 2018-06-26 2018-11-30 郑州博钰特超硬材料制品有限公司 一种磨削均匀的外圆磨床
CN108942350A (zh) * 2018-08-28 2018-12-07 江门市蓬江区星硕方数控设备有限公司 一种用于端面钻铣加工的新型动力头结构
CN109623514A (zh) * 2018-12-25 2019-04-16 珞石（北京）科技有限公司 一种陶瓷刀自动化柔性打磨开刃工艺方法及装置
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US3594954A (en) * 1967-10-04 1971-07-27 Wurttembergische Metallwarenta Device for copying on polishing or brushing machines for hollow articles
US3439371A (en) * 1968-01-02 1969-04-22 Wmf Wuerttemberg Metallwaren Brushing or polishing machine
US3717893A (en) * 1970-09-11 1973-02-27 G Carlson Automatic tape-controlled work finishing machine
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CN103465146A (zh) * 2013-09-03 2013-12-25 宇环数控机床股份有限公司 一种多工位立式抛光机
CN103465146B (zh) * 2013-09-03 2016-04-13 宇环数控机床股份有限公司 一种多工位立式抛光机
CN103831695A (zh) * 2014-03-28 2014-06-04 中国科学院自动化研究所 大型自由曲面机器人打磨系统
CN104875087B (zh) * 2015-06-03 2018-03-23 佛山思科特光学科技有限公司 一种玻璃扫光机
CN104875087A (zh) * 2015-06-03 2015-09-02 佛山思科特光学科技有限公司 一种玻璃扫光机
CN105598777A (zh) * 2016-03-08 2016-05-25 济南大学 一种用于磨具的工件夹持结构、循迹式铸件磨边机及方法
CN106808330B (zh) * 2017-03-09 2018-10-12 广西霸普环保科技有限公司 一种五金板高效压实打磨一体化设备
CN106808330A (zh) * 2017-03-09 2017-06-09 郑九新 一种五金板高效压实打磨一体化设备
CN108908032A (zh) * 2018-06-26 2018-11-30 郑州博钰特超硬材料制品有限公司 一种磨削均匀的外圆磨床
CN108908032B (zh) * 2018-06-26 2023-08-18 大连运城制版有限公司 一种磨削均匀的外圆磨床
CN108942350A (zh) * 2018-08-28 2018-12-07 江门市蓬江区星硕方数控设备有限公司 一种用于端面钻铣加工的新型动力头结构
CN109623514A (zh) * 2018-12-25 2019-04-16 珞石（北京）科技有限公司 一种陶瓷刀自动化柔性打磨开刃工艺方法及装置
CN112743396B (zh) * 2020-12-24 2022-02-08 枣庄北航机床创新研究院有限公司 一种螺旋桨清根加工机床及方法
CN112743396A (zh) * 2020-12-24 2021-05-04 枣庄北航机床创新研究院有限公司 一种螺旋桨清根加工机床及方法
CN113523998A (zh) * 2021-07-15 2021-10-22 林桥娣 一种鸟笼边缘的抛光装置
CN113523998B (zh) * 2021-07-15 2023-07-28 南京超图中小企业信息服务有限公司 一种鸟笼边缘的抛光装置
CN113500490A (zh) * 2021-09-13 2021-10-15 南通山森光学科技有限公司 一种光学镜片加工用打磨机
CN113941927A (zh) * 2021-10-13 2022-01-18 刘伊礼 一种用于瓷器表面打磨装置
CN113941927B (zh) * 2021-10-13 2023-11-10 刘伊礼 一种用于瓷器表面打磨装置
CN114030981A (zh) * 2021-10-22 2022-02-11 廖寿佳 一种可封闭式打磨的石油管道安装用吊具
CN114030981B (zh) * 2021-10-22 2024-04-12 江苏飞特嘉信息技术工程有限公司 一种可封闭式打磨的石油管道安装用吊具
CN113977439A (zh) * 2021-11-08 2022-01-28 徐州祥模工程技术有限公司 一种用于金属制品表面加工的抛光装置

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SE321163B (de) 1970-02-23
DK140248B (da) 1979-07-16
GB1119174A (en) 1968-07-10
AT254736B (de) 1967-06-12
BE670622A (de) 1966-01-31
ES318444A1 (es) 1966-04-01
JPS5128876B1 (de) 1976-08-21
DK140248C (de) 1979-12-03

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