WO2004050297A1 - 位置決め装置 - Google Patents
位置決め装置 Download PDFInfo
- Publication number
- WO2004050297A1 WO2004050297A1 PCT/JP2003/015139 JP0315139W WO2004050297A1 WO 2004050297 A1 WO2004050297 A1 WO 2004050297A1 JP 0315139 W JP0315139 W JP 0315139W WO 2004050297 A1 WO2004050297 A1 WO 2004050297A1
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- WO
- WIPO (PCT)
- Prior art keywords
- positioning device
- wedge
- elastic sleeve
- block
- wedge member
- Prior art date
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q1/00—Members which are comprised in the general build-up of a form of machine, particularly relatively large fixed members
- B23Q1/0063—Connecting non-slidable parts of machine tools to each other
- B23Q1/0081—Connecting non-slidable parts of machine tools to each other using an expanding clamping member insertable in a receiving hole
- B23Q1/009—Connecting non-slidable parts of machine tools to each other using an expanding clamping member insertable in a receiving hole the receiving hole being cylindrical or conical
Definitions
- the present invention relates to a device for positioning a second block such as a work palette or a work piece on a first block such as a table of a machine tool.
- this type of positioning device is configured such that a circular engaging hole opened in the supported surface of the second block is fitted to a plug protruding from the supporting surface of the first block. (For example, see Japanese Patent Application Laid-Open No. 57-27640).
- An object of the present invention is to provide a device that can be easily positioned with high accuracy. Disclosure of the invention
- the positioning device was constructed as follows.
- the first block 1 is provided with a support surface 1a for receiving the supported surface 2a of the second block 2.
- the pillar 11 protruding from the support surface 1 a in the distal direction is fixed to the first block 1.
- the engaging member 12 inserted into the engaging hole 3 of the supported surface 2 a is supported by the first block 1 in the outer peripheral space of the center column 11.
- a wedge space W that narrows in one of the axial directions is provided between the column 11 and the engaging tool 12, and the wedge member 15 is inserted into the wedge space W movably in the axial direction.
- the wedge member 15 described above is configured to be movable in the axial direction by the driving means 31.
- the above-mentioned center column 11 is formed integrally with the above-mentioned first block 1 or that it is formed separately from the first block 1 and fixed to the above-mentioned first block 1. .
- the engaging tool 12 is directly supported by the first block 1 and indirectly supported by the first block 1 via another member such as the center column 11 described above. It is thought that it is done.
- the above-mentioned engaging member 12 is constituted by one elastic sleeve, or constituted by a plurality of pressing members arranged at intervals in the circumferential direction.
- the former engaging tool 12 made of a flexible sleeve may be constituted by a thin-walled cylinder, or may be constituted by providing a slit or the like on a peripheral wall to form a collet.
- the above-described invention operates as follows, for example, as shown in the above-described drawings.
- the engaging tool provided in the first block is fitted with the above-described engaging hole of the second block, and then the driving means described above is used.
- the wedge member is moved in the locking direction at one end in the axial direction.
- the wedge member and the above-mentioned center column are directly or indirectly wedge-engaged, and the wedge member strongly expands at least a part of the above-mentioned engagement tool radially outward.
- the enlarged diameter portion of the engagement tool comes into close contact with the engagement hole.
- the second block is locked to the first block via the engagement member, the wedge member, and the center column in this order.
- the drive means moves the wedge member in the release direction at the other end in the axial direction. Then, the wedge engagement of the wedge member is released, and the enlarged diameter portion of the engagement tool can be reduced inward in the radial direction. As a result, the close contact state between the engagement tool and the engagement hole is released. Thereafter, the second block may be separated from the first block.
- the present invention has the following advantages.
- the engagement tool can be brought into close contact with the above-described engagement hole. For this reason, it is possible to both smoothly fit the engagement hole and the engagement tool and perform positioning with high precision.
- the wedge member for expanding the diameter of the engaging tool can be directly or indirectly wedge-engaged with the pole fixed to the first block, the wedge member can be accurately positioned via the reference pole. It became possible to move well. For this reason, the diameter of the above-mentioned engagement tool can be expanded with desired accuracy. As a result, the second block can be positioned with high accuracy on the first block, and the repetition accuracy is high.
- the above-mentioned engaging tool supported by the above-mentioned first block essentially moves only in the radial direction, and can hardly move in the axial direction. For this reason, the wedge space can be easily separated from the atmosphere by the engagement tool, and foreign matters such as cutting oil and chips in the atmosphere can be prevented from entering the wedge space. .
- the diameter expanding mechanism can be constituted by the above-mentioned center column, wedge member and engaging tool, the number of components of the diameter expanding mechanism can be reduced, and an extremely compact positioning device can be provided. .
- the engaging device is constituted by an annular elastic sleeve 12. Is also good.
- FIGS. 26A and 26B May be included.
- the engaging tool is constituted by a plurality of pressing tools 12 arranged at intervals in the circumferential direction, and an annular plug 12 inserted into the engaging hole 3 on the outer periphery of the wedge member 15 1 is arranged, and the above-mentioned pressing tool 12 is supported on the peripheral wall 1 2 1 a of the annular plug 1 2 1 so as to be movable in the radial direction, and is moved inward in the radial direction by the return means 1 2 2. Configure as possible.
- the above-mentioned pressing tool can set the amount of movement in the radial direction to a large value as compared with the above-mentioned elastic sleeve.
- the present invention provides, for example, the above-described FIGS. 1 to 5, FIG. 12, FIG. 17, or FIG. 19 to FIG. 2.1, and FIG. 8.
- the positioning device may be configured as follows.
- the first block 1 is provided with a support surface 1a for receiving the supported surface 2a of the second block 2.
- the column 11 is protruded from the support surface 1 a toward the distal end, and the column 11 is fixed to the first block 1.
- the elastic sleeve 12 that fits into the engagement hole 3 opened in the supported surface 2a is supported by the first block 1 in the outer peripheral space of the center column 11 described above.
- a wedge space W narrowing in one of the axial directions is provided between the above-mentioned center column 11 and the above-mentioned elastic sleeve 12, and the wedge member 15 is movable in the axial direction in the wedge space W. insert.
- Drive means 31 for moving the wedge member 15 in the axial direction is provided in the first block 1.
- the present invention has the following advantages similar to the above-described invention.
- the elastic sleeve can be brought into close contact with the engagement hole. For this reason, it is possible to achieve both smooth engagement between the engagement holes and the elastic sleeve and high-precision positioning.
- the wedge member for expanding the diameter of the elastic sleeve can be directly or indirectly wedge-engaged with the center pole fixed to the first block.
- the wedge member described above can be accurately moved. Therefore, the diameter of the elastic sleeve can be increased with a desired accuracy.
- the second block can be positioned with high accuracy in the first block, and the repetition accuracy is high.
- the elastic sleeve supported by the first block can move essentially only in the radial direction, and can hardly move in the axial direction. Therefore, it is easy to partition the wedge space from the atmosphere by the elastic sleeve, and it is possible to prevent foreign matters such as cutting oil and chips in the atmosphere from entering the wedge space.
- the diameter expanding mechanism can be constituted by the above-mentioned center column, wedge member and elastic sleeve, the number of components of the diameter expanding mechanism is reduced, and an extremely compact positioning device can be provided.
- the center column 11 is formed integrally with the first block 1. In this case, the accuracy of the positioning and the repeatability described above are improved because the accuracy of the axial center of the shaft is increased.
- the ceiling wall 27 covering the front end of the wedge space W is
- the present invention may include the following configuration.
- a ceiling wall 27 covering the front end portion of the wedge space W is provided on the center column 11, and the front end surface of the elastic sleeve 12 is supported on the ceiling wall 27 so as to be movable in the radial direction.
- the base end surface of the elastic sleeve 12 is supported by the receiving portion 9b of the first block 1 so as to be movable in the radial direction.
- a plurality of the wedge spaces W are arranged at predetermined intervals in the circumferential direction, and the wedge members 15 are inserted into the respective wedge spaces W.
- a wedge surface 19 is provided at the distal end of the wedge member 15 and an input unit 20 is provided at a base end of the wedge member 15.
- the input unit 20 is connected to the output unit 4 of the driving means 31. It is connected to 4 so that it can move relatively in the radial direction.
- the diameter of the elastic sleeve can be locally increased by each of the wedge members, the enlarged diameter portion of the elastic sleeve can be strongly brought into close contact with the engagement hole.
- the input portion of the wedge member is connected to the output portion of the driving means so as to be relatively movable in the radial direction, the wedge members move outward in the radial direction smoothly and precisely when the wedges are engaged. it can. For this reason, the above-described positioning accuracy and repetition accuracy are further improved.
- the wedge space W may be formed in an annular shape.
- the wedge member 15 is formed of an annular collet, and that the wedge member 15 can be expanded in diameter by its own elastic restoring force.
- the diameter expanding mechanism is further simplified, so that an inexpensive positioning device can be provided.
- the wedge space W and the wedge member 15 are formed so as to narrow in the proximal direction.
- the wedge member when the lock is driven, can press the second block against the first block via the engaging member. Can be omitted.
- the wedge space W and the wedge member 15 may be formed so as to narrow in the direction.
- the wedge member can be inserted from the base end to the front end even when the wedge space is configured as a closed type, so that assembling of the wedge member does not take much time.
- a plurality of inclined grooves 17 inclined toward the distal end may be provided on the outer periphery of the above-mentioned center pillar 11.
- the wedge member can be guided with high accuracy by the bottom wall and both side walls of the inclined groove, the positioning accuracy and the repeatability described above are extremely improved.
- a tapered surface 55 or a plurality of inclined surfaces inclined in the distal direction narrowing in the distal direction is provided on the outer periphery of the center column 11. May be provided.
- the present invention has an effect that the above-described diameter expanding mechanism can be simply manufactured.
- a tapered surface that narrows in the proximal direction may be provided on the inner periphery of the engaging tool 12. This invention also has an effect that the above-mentioned diameter expansion mechanism can be easily made.
- a taper surface that narrows in the distal direction may be provided on the inner periphery of the above-described engaging tool 12.
- the present invention may include the following configurations.
- the elastic sleeve 12 is constituted by a thin-walled cylinder integrally formed with no break in the circumferential direction, and the annular wall 1 of the elastic sleeve 12 is formed.
- a plurality of radially enlarged portions of 2c that are spaced apart in the circumferential direction 5 1 Force The structure is configured so that it can be elastically deformed outward in the radial direction and returned inward in the radial direction by its own elastic restoring force.
- the present invention it is possible to reliably prevent foreign matters in the atmosphere from entering the wedge space by the above-described elastic sleeve having no cut.
- the elastic sleeve since the elastic sleeve has no cuts, foreign substances adhering to the outer peripheral surface of the sleeve can be easily cleaned with a cleaning fluid such as compressed air. For this reason, the cleaning work is automated and the This makes it possible to achieve maintenance-free operation. In addition, it eliminates positioning errors caused by foreign matter and prevents damage to the fitting part.
- Two through grooves 76 may be provided so that the elastic sleeve 12 can be reduced in diameter by its own elastic restoring force. According to the present invention, the amount of expansion and contraction of the elastic sleeve can be increased, and the elastic sleeve can be easily processed simply and precisely.
- An elastic seal member 75 made of rubber or synthetic resin may be attached to the slit 74 or the through groove 76. In this case, the intrusion of foreign matter into the wedge space can be prevented by the elastic seal member.
- the following configuration may be included. That is, at least one of the inner circumference or the outer circumference of the elastic sleeve 12, the inner circumference or the outer circumference of the wedge member 15, the outer circumference of the center column 11, and the engagement hole 3.
- a plurality of projections 62 extending in the axial direction are provided at intervals in the circumferential direction.
- the engagement hole 3 is formed by a substantially circular straight hole, It is preferable that the outer peripheral surface 12a of the tool 12 be constituted by a substantially circular straight surface.
- the present invention has high versatility because the above-mentioned engaging tool and the engaging hole are easily processed.
- the engaging hole 3 is constituted by a tapered hole which is substantially circular and narrows in the depth direction. It may be constituted by a tapered surface narrowing toward.
- the operation of fitting and releasing the engagement between the engagement tool and the engagement hole is easy, and furthermore, the allowable range of the misalignment between the engagement tool and the engagement hole is large. I do.
- the present invention may include the following configuration.
- the engagement hole 3 and the clamp hole 81 are sequentially provided in the second block 2 in the depth direction, and the second block 2 is engaged with the clamp hole 81.
- the rod 87 supporting the engaging member 84 of the above-mentioned center column 11 and engaging the other engaging member 84 with the above-mentioned clamp hole 81 and pulling in the proximal direction is attached to the above-mentioned center.
- the rod 87 is inserted into the cylinder hole 85 of the column 11, and the rod 87 is connected to the clamp driving means 96.
- the present invention provides a positioning device having a built-in strong clamping mechanism because the rod can press the second block against the first block via the another engagement tool and the clamp hole. it can.
- a supply port 97 of a pressure fluid for cleaning is provided in the first block 1, and a tip of the port 87 is provided. It is preferable that a discharge port 98 is opened in the portion, and the supply port 97 and the discharge port 98 communicate with each other.
- the foreign matter adhering to the contact portion and the fitting portion of the positioning device can be blown off by the pressure fluid, so that the positioning can be performed reliably and with high accuracy.
- FIG. 1 is a schematic diagram showing a first embodiment of a positioning device according to the present invention, showing a basic principle of a pallet system using the present invention, and is a cross-sectional view of the pallet system.
- FIG. 2 is a cross-sectional view of the positioning device in a released state as viewed in an elevational direction, and is a view corresponding to the line 2-2 in FIG. 1 described above.
- FIG. 3A is an enlarged schematic view of a main part in FIG. 2 and is an operation explanatory view of the positioning device in the released state.
- Fig. 3B shows the expanded diameter of the positioning device.
- FIG. 3B is a sectional view taken along line 3B-3B in FIG. 3A, showing the mechanism.
- FIG. 3C is a sectional view taken along line 3C-3C in FIG. 3A of the above.
- FIG. 4A is an operation explanatory view of the above-described positioning device in a locked state, and is similar to FIG. 3A described above.
- FIG. 4B is a schematic view corresponding to the view taken along line 4B-4B in FIG. 4A.
- FIG. 5 is a cross-sectional view of another expanding mechanism provided in the pallet system, and is a view similar to FIG. 3B described above.
- FIG. 6A shows a first modified example of the above-described diameter expansion mechanism, and is a view similar to FIG. 3B described above.
- FIG. 6B is a view similar to FIG. 5 showing a modification of the another diameter expanding mechanism.
- FIG. 7 is a partial view similar to FIG. 3A, showing a second modification of the above-described diameter expansion mechanism.
- FIG. 8 is a view similar to FIG. 7 described above, showing a third modification of the above-described diameter expansion mechanism.
- FIG. 9A shows a fourth modification of the above-described diameter expansion mechanism, and is a view similar to FIG. 7 described above.
- FIG. 9B is a cross-sectional view of the fourth modified example, similar to FIG. 6A described above.
- FIG. 1OA shows a fifth modification of the above-described diameter expansion mechanism, and is a view similar to FIG. 7 described above.
- FIG. 1OB is a partial plan view of the fifth modification, and is similar to FIG. 3 described above.
- FIG. 11A is a view similar to FIG. 1OA described above, showing a sixth modification of the above-described diameter expansion mechanism.
- FIG. 11B is a partial plan view of the sixth modification, and is a view similar to FIG. 1OB described above.
- FIG. 12 shows a positioning device of a second embodiment of the present invention, and is a view similar to FIG. 3A described above.
- FIG. 13 shows a positioning device according to a third embodiment of the present invention, which is similar to FIG. 3A described above.
- FIG. 1 A first figure.
- FIG. 14 shows a positioning device according to a fourth embodiment of the present invention, and is a view similar to FIG. 13 described above.
- FIG. 15A to FIG. 15 show a first modification to a sixth modification of the above positioning device, and are partial views similar to FIG. 3A, respectively.
- FIG. 16A and FIG. 16B show a first modified example and a second modified example of the elastic sleeve provided in the positioning device, respectively, and are elevation views of the elastic sleeve, respectively.
- FIG. 17 shows a fifth embodiment of the present invention, which is a positioning device having a built-in clamp means, wherein the right half shows a released state and the left half shows a locked state.
- FIG. 18 is a partial view similar to the release state of the right half view in FIG. 17 showing a modified example of the above clamping means.
- FIG. 19 is a schematic view illustrating a positioning device according to a sixth embodiment of the present invention and illustrating a basic principle of another pallet system utilizing the present invention, and is similar to FIG. 1 described above.
- FIG. 2OA is a cross-sectional view corresponding to the line 2OA-2OA in FIG. 19 and similar to FIG. 2 described above.
- FIG. 20B is a cross-sectional view taken along line 20B—20B in FIG. 2OA.
- FIG. 21 is a cross-sectional view taken along line 21--21 in FIG. 2OA.
- FIG. 22 shows a modified example of the diameter expanding mechanism provided in the above positioning device.
- FIG. 21 is a view similar to FIG.
- FIG. 23 shows a positioning device according to a seventh embodiment of the present invention, and is a view similar to FIGS. 2OA and 21 described above.
- FIG. 24 shows a positioning device according to an eighth embodiment of the present invention, and is a view similar to FIG. 21 described above.
- FIG. 20 shows a first modification to a sixth modification, each of which is similar to FIG. 20B described above.
- FIGS. 26A and 26B show a positioning device according to a ninth embodiment of the present invention.
- FIG. 26A is a view similar to FIG. 20A described above.
- FIG. 26B is a plan view similar to FIG. 20B described above.
- FIG. 27 is a cross-sectional view taken along line 27-27 of FIG. 26B, and is similar to FIG. 21 described above.
- FIG. 28 is an enlarged view of the cross-sectional view of the diameter expanding mechanism in FIG. 26A described above.
- FIG. 29 shows a modification of the above-described diameter expansion mechanism, and is a view similar to FIG. 28 described above.
- FIG. 30 shows a positioning device according to a tenth embodiment of the present invention, and is a view similar to FIG. 2OA described above.
- FIG. 31 shows a positioning device according to the eleventh embodiment of the present invention, and is a view similar to FIG. 30 described above.
- FIG. 32 shows a 12th embodiment of the present invention, which is a positioning device having a built-in clamp means, wherein the right half shows a released state and the left half shows a locked state.
- FIGS. I to 5 show a first embodiment of the present invention, in which the positioning device of the present invention is applied to a pallet system.
- FIG. 1 is a schematic view showing the basic principle of the pallet system, and is a cross-sectional view of the pallet system.
- FIG. 2 is a cross-sectional view of the positioning device in a release state when viewed from the elevation, and is a view corresponding to the arrow 2-2 in FIG. 1 described above.
- a base plate 1 as a first block is placed on a table T of a machine tool, and a support surface 1a of a base plate 1 is provided on a support surface of a work palette 2 as a second block. 2a is received, and the work pallet 2 is centered on the base plate 1.
- a plurality of precisely machined engagement holes 3 are opened in the above-mentioned supported surface 2a of the work pallet 2.
- the engagement hole 3 is formed of two circular straight holes.
- the base plate 1 is provided with plug means 4 corresponding to one engagement hole 3 and another plug means 5 corresponding to the other engagement hole 3.
- These two plug means 4'5 have the same structure except for the difference in diameter expansion mechanism 4a'5a
- Each of the above plug means 4 5 is configured as follows.
- a mounting hole 8 with a step is formed in the support surface 1 a of the base plate 1, and a housing 9 is precisely fitted into the mounting hole 8, and a flange 9 a of the housing 9 is formed. Is fixed to the step 8a of the mounting hole 8 described above.
- a shaft 11 is projected from the housing 9 above (toward the tip of) the support surface 1 a, and the shaft 11 can be inserted into the engagement hole 3.
- the center column 11 is formed integrally with the housing 9, and the axis of the center column 11 and the axis of the mounting hole 8 are precisely aligned.
- an elastic sleeve (engaging member) 12 is supported on the base plate 1 in the outer peripheral space of the center column 11.
- the elastic sleeve 12 is made of a special alloy steel such as a bearing steel or a dice steel and is hardened, and is constituted by a thin cylinder formed on the body without a break in the circumferential direction.
- the outer peripheral surface 12 a of the elastic sleeve 12 is formed on the outer peripheral surface 12 a of the elastic sleeve 12 to be fitted into the engagement hole 3.
- the diameter expanding mechanism 4a of the plug means 4 expands the elastic sleeve 12 with respect to the center column 11 by, for example, three directions in FIG.
- the three circumferential positions 12 are brought into close contact with the engagement holes 3.
- the work pallet 2 is positioned in the horizontal direction on the base plate 1 via the center pillar 11, the later-described wedge member 15, and the elastic sleeve 12.
- the diameter expansion mechanism 5a of the another plug means 5 is substantially orthogonal to the straight line L connecting the axes A and B of the two center columns 1 1 1 1 1 1
- the diameter of the elastic sleeve 12 is increased in two directions by a wedge action so that two locations in the circumferential direction of the elastic sleeve 12 are brought into close contact with the engagement holes 3. This prevents the work pallet 2 from turning around the axis A.
- the plug means 4 ⁇ 5 The specific structure of the plug means 4 ⁇ 5 will be described with reference to FIGS. As described above, the two plug means 4 ⁇ 5 have the same structure except for the diameter expansion mechanism 4a ⁇ 5a as described above, and therefore only one plug means 4 will be described.
- FIG. 3A is an explanatory diagram of the operation of the positioning device in a released state, and is an enlarged schematic diagram of the main part in FIG. 2 described above.
- FIG. 3B is a cross-sectional view taken along the line 3B-3B in FIG. 3A, showing the above-described diameter expanding mechanism 4a.
- FIG. 3C is a sectional view taken along line 3C-13C in FIG. 3A of the above.
- FIG. 4A is an explanatory diagram of the operation of the above-described positioning device in a locked state, and is similar to FIG. 3A described above.
- FIG. 4B is a schematic view corresponding to the view taken along line 4B-4B in FIG. 4A.
- FIG. 5 shows a cross-sectional view of the another diameter expanding mechanism 5a, and is a view similar to FIG. 3B.
- Each wedge space W is arranged between the above-mentioned center column 11 and the above-mentioned elastic sleeve 12 at a predetermined interval in the circumferential direction.
- Each wedge space W is formed so as to narrow downward (toward the base end), and a wedge member 15 is inserted into each wedge space W so as to be vertically movable.
- each inclined groove 17 is inclined so as to approach the axis A as it goes upward.
- the inclined groove 17 and the elastic sleeve 1 2 The wedge space W is formed between the inner peripheral surface 12b and the inner peripheral surface 12b.
- the wedge member 15 is formed by cutting a circular pin, and a wedge surface 19 for engaging with the inclined groove 17 is formed in the upper half of the wedge member 15. I have. Further, an input section 20 is formed below the wedge member 1_5. Further, the intermediate portion 21 of the wedge member 15 is fitted into the vertical hole 23 of the upper wall of the housing 9 and guided movably in the radial direction along the vertical hole 23. .
- An annular groove 24 is formed on the upper surface of the housing 9 at the outer periphery of the plurality of vertical holes 23.
- the lower end surface (base end surface) of the elastic sleeve 12 is movable in the radial direction through the first sealing member 25 made of an O-ring attached to the annular groove 24 so as to be sealed. It is supported by the receiving portion 9b at the top of the housing 9.
- a relief groove 26 communicates with a part of the annular groove 24 in the circumferential direction, and the relief part 25 a of the first sealing member 25 faces the relief groove 26.
- a cap 27 (ceiling wall) covering the upper part of the above three wedge spaces W is screwed tightly to the upper end of the above-mentioned center pillar 11.
- the upper end surface (tip surface) of the elastic sleeve 12 is movable in the radial direction through a second sealing member 28 made of an O-ring fitted to the lower surface of the cap 27 so as to be sealed. It is supported by the cap 27 in the same manner.
- Driving means 31 for moving the plurality of wedge members 15 in the vertical direction is provided in the housing 9. That is, the male screw cylinder 32 is screwed to the lower part of the housing 9 so as to be able to advance and retreat, and the piston 33 is inserted into the cylindrical hole of the male screw cylinder 32.
- a lock panel 35 composed of a compression coil panel is mounted in a lock chamber 34 formed above the biston 33.
- a release chamber 37 formed below the piston 33 is connected to a pressure oil supply / discharge rotor 39 via a throttle path 38.
- the throttle path 3 8 is formed by the lower guide hole 4 1 of the male screw cylinder 3 2 and the lower rod 4 2 of the piston 3 3.
- a disc-shaped output part 44 is provided on the upper part of the upper rod 43 of the biston 33, and the output part 44 is fitted into the upper guide hole 45 of the housing 9.
- Three guide grooves 47 extending in the radial direction are formed in the output portion 44, and the input portion 20 of the wedge member 15 is movable in the radial direction in each guide groove 47, and is vertically movable. It is inserted in a state where movement is prevented.
- the positioning device having the above configuration operates as follows.
- the pressurized oil is supplied to the release chamber 37.
- the piston 33 raises the output portion 44 against the urging force of the lock panel 35, and the output portion 44 raises the wedge member 15 and the elastic sleeve 12 Is switched to the reduced diameter state by its own elastic restoring force.
- the outer peripheral surface 1 2 When the diameter of the engagement hole 3 is, for example, about 1 O mm, the fitting gap E between a and the engagement hole 3 is a small value from about 0.02 mm to about 0.06 tnm. It has been set. At the time of the lock operation, each of the enlarged diameter portions 51 protrudes outward in the radial direction with a value larger than the fitting gap E, and between the adjacent enlarged diameter portions 5 1 ⁇ 5 1 The diameter-reduced portion 52 retreats inward in the radial direction.
- the pressure oil in the release chamber 37 is slowly discharged by the action of the throttle path 38, so that the lock operation can be performed slowly and reliably.
- the biston 33 can be driven straight.
- the lower portion of the wedge member 15 was guided by the vertical hole 23, and the upper half of the wedge member 15 was guided by the bottom wall and both side walls of the inclined groove 17. The wedge member 15 can be moved with high precision.
- the clamped state of the clamping means (not shown) is released, and then pressurized oil may be supplied to the release chamber 37 as described above.
- the wedge member 15 is raised, and the enlarged diameter portion 51 of the elastic sleeve 12 is reduced in diameter by its own elastic restoring force, so that the locked state is released. Thereafter, the work pallet 2 is raised.
- the clamp means (not shown) can be omitted.
- the sealing member 33 a of the piston 33 is damaged, the pressure oil in the release chamber 37 leaks to the lock chamber 34, and a large amount of the oil flows into the lock chamber 34. Oil is being stored. Then, when the pressure in the lock chamber 34 contracts and the pressure increases, the leaked oil in the lock chamber 34 releases the relief portion 25 a of the first sealing member 25. It is pushed open and discharged outside. Therefore, the lock chamber 3 It is possible to prevent the above-mentioned biston 33 from becoming immovable due to the leaked oil in 4.
- the inclination of the inclined groove 17 of the center column 11 is preferably about 3 degrees to about 10 degrees, and more preferably about 5 degrees to about 8 degrees. In the form, it is set to about 6 degrees. Also, the diameter of the engagement hole 3 is exemplified by the dimensions of 10 countries, but a small positioning device can be manufactured even if it is 6 or less, and a large positioning device is 20 or more. Can be manufactured. It is sufficient that the center column 11 is fixed to the base plate 1. Therefore, instead of forming the above-mentioned center column 11 integrally with the housing 9, the center column 11 may be fixed to the housing 9 by fastening means such as screw engagement or flange connection.
- a plurality of inclined planes may be provided on the outer periphery of the above-mentioned center column 11 instead of the exemplified plurality of inclined grooves 17.
- lock spring 35 may be a disc spring or the like instead of the illustrated coil panel.
- the support surface 1 a may be provided on the upper surface of the flange 9 a of the housing 9 instead of being provided on the base plate 1.
- the base plate 1 and the housing 9 may be integrally formed instead of being formed separately.
- the structure of the relief portion 25a exemplified for discharging the leaked oil stored in the lock chamber 34 to the outside is a special structure instead of being shared by the first sealing member 25.
- a seal may be provided, and a poppet-type check valve may be used instead.
- a cleaning means is provided on the positioning device to press the contact portion between the support surface 1a and the supported surface 2a or the fitting portion between the engagement hole 3 and the elastic sleeve 12. It is preferable to clean with a pressure fluid such as compressed air.
- the above-described positioning device may be provided with a seating confirmation unit.
- a detection nozzle hole (not shown) is opened in the support surface 1a of the, and compressed air for detection is supplied to the detection nozzle hole.
- the pressure in the detection nozzle hole increases.
- a pressure switch or the like By detecting the increase in pressure with a pressure switch or the like, it can be confirmed that the work pallet 2 is seated on the base plate 1.
- FIG. 6A, FIG. 6B, FIG. 7, FIG. 8, FIG. 9A and FIG. 9B, FIG. 10A and FIG. 1OB, FIG. 11A and FIG. This shows a modification of the first embodiment.
- members similar to those of the above-described first embodiment will be described in principle with the same reference numerals.
- FIG. 6A is a view similar to FIG. 3B, showing a first modified example of the diameter expanding mechanism 4a.
- the outer peripheral surface of the center column 11 is formed by a tapered surface 55 that narrows upward, and the wedge space W is formed in an annular shape in plan view.
- the tapered surface 55 has a taper angle of about 12 degrees (a gradient of about 6 degrees).
- FIG. 6B is a view similar to FIG. 5 showing a modification of the another diameter expanding mechanism 5a. 6B is different from the above-described modified example of FIG. 6A in that two wedge members 15 are arranged facing each other.
- FIG. 7 is a partial view similar to FIG. 3A, showing a second modification of the above-described diameter-enlarging mechanism 4a.
- a tapered bush 57 is externally fitted on the straight outer peripheral surface of the center column 11.
- An annular wedge space W narrowing downward is formed between the tapered surface 58 on the outer periphery of the bush 57 and the elastic sleeve 12.
- the bush 57 may be manufactured without any breaks in the circumferential direction, or may be provided with slits or grooves extending upward and downward in the circumferential wall.
- a breathing hole 59 communicating with the lock chamber (not shown) is opened at the upper end of the above-mentioned center column 11.
- FIG. 8 shows a third modification of the above-described diameter expansion mechanism 4a, and is a view similar to FIG. 7 described above. It is.
- the modification of FIG. 8 differs from the modification of FIG. 7 in the following points.
- the outer peripheral surface of the bush 57 is formed in a straight line, and the inner peripheral surface 12 b of the elastic sleeve 12 is formed by a tapered surface narrowing downward.
- the wedge surface 19 formed outward in the radial direction of the wedge member 15 is formed in an arc shape in plan view along the inner peripheral surface 12.
- FIGS. 9A and 9B show a fourth modification of the diameter expansion mechanism 4a.
- FIG. 9A is a view similar to FIG. 7 described above.
- FIG. 9B is a view similar to FIG. 6A described above.
- the fourth modification is different from the modification of FIG. 7 in that the bush 57 in FIG. 7 is omitted, and a tapered surface 55 is formed on the outer periphery of the center column 11. Further, the axis of the wedge member 15 is inclined.
- FIGS. 1OA and 1OB show a fifth modification of the diameter expansion mechanism 4a.
- FIG. 1OA is a view similar to FIG. 7 above.
- FIG. 1OB is a partial plan view of FIG. 1OA, similar to FIG. 3B. ,
- the wedge member 15 is constituted by one annular collet.
- a slit 61 is formed on a part of the peripheral wall of the wedge member 15, so that the peripheral wall can be enlarged and reduced in diameter.
- a wedge surface 19 extending in the circumferential direction is formed on the inner peripheral surface of the wedge member 15.
- three projections 62 for diameter expansion extending in the vertical direction are provided at substantially equal intervals in the circumferential direction.
- the center column 11 is formed in a cylindrical shape, and the output portion 44 inserted into the center column 11 and the collet-type wedge member 15 are connected by a connection pin 63. You.
- FIGS. 11A and 11B show a sixth modification of the diameter expansion mechanism 4a.
- FIG. 11A is similar to FIG. 1OA above.
- FIG. 11B is a view similar to FIG. 1OB described above.
- the sixth modification is different from the fifth modification in the following point.
- Three protrusions for expanding the diameter 6 extending vertically in the inner circumference of the elastic sleeve 12
- the inner circumference of the projection 62 is inclined downward.
- the wedge surface 19 is formed in the lower half of the outer peripheral surface of the collet-type wedge member 15.
- FIG. 12 showing the second embodiment is a view similar to FIG. 3A described above.
- the wedge space W and the wedge members 15 are formed so as to narrow upward (toward the tip).
- the lock chamber 34 is formed below the piston 33.
- the lower part of the upper rod 43 protruding upward from the biston 33 is sealed by packing 65, and the release chamber 37 is formed on the outer periphery of the upper rod 43.
- the piston 33 is driven upward by the lock spring 35 in the lock chamber 34.
- the output portion 44 provided above the upper rod 43 moves the plurality of wedge members 15 upward, and each wedge member 15 expands the diameter of the elastic sleeve 12.
- an inclined groove inclined downward is formed on the outer peripheral surface in the circumferential direction. They may be arranged at intervals.
- FIG. 13 showing the third embodiment is similar to FIG. 3A described above.
- the driving means 31 is supported by the panel receiver 67 inserted into the housing 9 of the base plate 1 and the panel receiver 67 supported rotatably in the center column 11. It is composed of a screwed operation port 68 and the lock spring 35 for urging the spring receiver 67 downward. The rotation of the spring receiver 67 around the axis is prevented by the pin 69.
- the operation bolt 68 is tightened and rotated by a hexagon wrench (not shown) inserted into the operation hole 70 of the work pallet 2.
- a hexagon wrench (not shown) inserted into the operation hole 70 of the work pallet 2.
- the spring receiver 67 rises against the lock spring 35, and the output portion 44 provided on the upper part of the spring receiver 67 releases the wedge member 15 upwardly. Let me do it.
- the operation bolt 68 is loosened and rotated.
- the spring receiver 67 is lowered by the lock panel 35, and the output portion 44 locks the wedge member 15 downward.
- FIG. 14 showing the fourth embodiment is similar to FIG. 13 described above.
- the fourth embodiment differs from the above-described embodiment of FIG. 13 in the following points.
- FIGS. 15 to 15 show a first modification to a sixth modification of the above positioning device, and are partial views similar to FIG. 3A, respectively.
- the outer peripheral surface 12a of the elastic sleeve 12 is constituted by a tapered surface that narrows upward, and the tapered outer peripheral surface 12a is formed by the engagement hole (FIG. (Not shown).
- the tapered engagement hole is formed so as to narrow upward (toward the back).
- a wedge member 15 that narrows downward is inserted between the inner peripheral surface 1213 of the elastic sleeve 12 and the tapered surface 55 of the shaft 11.
- the arrow in the drawing indicates the direction of the lock movement.
- a straight-type inner bush 57 is externally fitted to the center column 11, and the outer peripheral surface 1 2 of the elastic sleeve 12 is formed. a and the inner peripheral surface 1 2 b are both formed by tapered surfaces that narrow upward.
- the outer bush 72 is internally fitted to the inner peripheral surface 1 2b of the p-type.
- a wedge member 15 that narrows downward is inserted between the outer bush 72 and the inner bush 57.
- a plurality of protrusions extending in the vertical direction are provided on the inner peripheral surface 12 of the elastic sleeve 12 (see FIGS. 11A and 11B). May be provided at intervals in the circumferential direction.
- the inner peripheral surface 12 b of the elastic sleeve 12 is formed by a tapered surface that narrows upward, and the inner peripheral surface 12 13 of the tapered inner peripheral surface A wedge member 15 that narrows upward is inserted between the straight outer peripheral surface.
- the arrow in the drawing indicates the direction of the lock movement.
- the fourth modified example of FIG. 15D is a modification of the elastic sleeve 1 shown in FIG.
- the outer peripheral surface 12 a of the second 2 is formed by a tapered surface narrowing upward.
- a fifth modified example of FIG. 15E is the same as that of FIG. It is formed so as to narrow.
- the sixth modified example of FIG. 15F is a modification of the elastic sleeve 1 shown in FIG.
- the inner peripheral surface 12 b of the second wedge member 15 is configured by a tapered surface that narrows upward, and the upper part of the wedge member 15 is configured by a tapered surface that narrows upward.
- FIG. 16A shows a first modification of the elastic sleeve 12, and is an elevational view of the elastic sleeve 12.
- the above-mentioned elastic sleeve 12 is formed in a collet type, and one annular slit 74 is provided in the annular wall 12 c so that the annular wall 12 c can be elastically deformed outward in the radial direction. It is also configured to be able to return inward in the radial direction by its own elastic restoring force.
- An elastic seal member 75 such as silicone rubber or synthetic resin is attached to the inclined slit 74 by filling or bonding, etc., so that the inside of the collet-type elastic sleeve 12 is protected from dust and chips. Foreign matter can be prevented from entering.
- collet type elastic sleeve 12 is attached to the illustrated inclined slit 74.
- a straight slit may be provided in the vertical direction.
- the elastic sealing member 75 can be omitted.
- FIG. 16B shows a second modified example of the elastic sleeve 12 described above, and is a view similar to FIG. 16A described above.
- the modified example of FIG. 16B is different from the modified example of FIG. 16A described above in that a pair of through grooves 76 are opened up and down instead of the slits 74, and these through grooves 7 That is, the above-mentioned elastic seal member 75 is attached to the element 6. Its elastic sealing member 7 5 may be omitted.
- FIG. 17 shows a fifth embodiment of the present invention, and is a view similar to FIG. 2 described above, wherein a clamping means 80 is incorporated in the positioning device.
- the right half of FIG. 17 shows a released state, which is similar to FIG. 3A.
- the left half of FIG. 17 shows a locked state, which is similar to FIG. 4A described above.
- the engaging hole 3 of the work pallet 2 and the outer peripheral surface 12a of the elastic sleeve 12 are each formed by a taper surface which narrows upward.
- the engaging hole 3 and the outer peripheral surface 12a may both be constituted by a straight surface.
- the clamping means 80 is configured as follows.
- the engagement hole 3 and the clamp hole 81 are provided in order upward.
- the lower part of the clamp hole 81 is constituted by a tapered surface 82 which narrows downward.
- the above-mentioned center column 11 is formed in a cylindrical shape, and the center column 11 protrudes upward.
- a plurality of engaging poles are provided on the peripheral wall of the protrusion at predetermined intervals in the circumferential direction.
- the rod 87 is inserted into the cylindrical hole 85 of the center column 11 described above.
- a taper pressing surface 88 for moving the engaging pole 84 to the engaging position X,
- An evacuation surface 89 that allows the engagement pole 84 to move to the disengagement position Y is provided.
- a clamping piston 91 is inserted into the lower part of the housing 9 in a hermetically sealed manner, and the clamping piston 91 and the lower part of the rod 87 are connected.
- a spring receiver 92 is externally movably fitted to the lower half of the rod 87 described above, and the lock chamber 34 is formed above the spring receiver 92, and the lock spring 34 is formed in the lock chamber 34. 3 5 is attached. The downward movement of the panel receiver 92 by a predetermined amount or more is prevented by the adjustment bolt 93.
- a clamp spring 94 composed of a plurality of countersunk panels is mounted between the clamp piston 91 and the housing 9, and between the clamp piston 91 and the bottom wall of the mounting hole 8.
- a hydraulic chamber 95 for unclamping is formed.
- the clamping means 80 is used, for example, as follows.
- a contact gap is also formed between the outer peripheral surface 12 a of the elastic sleeve 12 and the tapered engagement hole 3.
- the above-mentioned positioning drive means 31 is constituted by the panel receiver 92, the lock panel 35, and the clamp piston 91.
- the clamp piston 91 and the clamp panel 94 constitute a clamp driving means 96.
- the base plate 1 is provided with a compressed air supply port 97 for cleaning, and a discharge port 98 is opened at the tip of the rod 87.
- the supply port 97 communicates with the discharge port 98 through the housing 9, the lower half of the cylindrical hole 85 of the mandrel 11 and the rod 87 in this order. Let me do it.
- the clamp means 80 may be a hydraulic lock type instead of a spring lock type, and may be a double-acting type instead of a single-acting type.
- FIG. 18 shows a modification of the clamping means 80 of the fifth embodiment, and is a partial view similar to the release state of the right half view in FIG. 17 described above.
- FIG. 18 differs from the embodiment of FIG. 17 in the following points.
- the second block 2 is constituted by a work piece, and both the engagement hole 3 and the clamp hole 81 of the second block 2 are constituted by continuous straight circular holes.
- another engaging tool 84 for the clamp is formed by a collet.
- the collet-type engaging member 84 is composed of a plurality of divided bodies 84 a arranged in a ring in plan view, and these divided bodies 84 a are formed by upper and lower annular elastic bodies 101-101. The diameter has been reduced.
- the annular elastic body 101 Panels, rubber, etc. are conceivable.
- the above-mentioned collet-type engaging member 84 is lowered by the rod 87. Then, the engaging member 84 expands in diameter along the tapered surface 102 on the upper part of the center column 11, and the outer peripheral surface of each of the divided bodies 84 a is strongly attached to the clamp hole 81. The second block 2 made of the workpiece is pressed against the housing 9.
- FIG. 19 to FIG. 21 show a sixth embodiment of the present invention.
- FIG. 19 is a schematic diagram showing the basic principle of another pallet system using the present invention, and is similar to FIG. 1 described above.
- FIG. 2OA is a cross-sectional view corresponding to the view taken along line 2OA-2OA in FIG. 19 and similar to FIG. 2 described above.
- FIG. 20B is a cross-sectional view taken along line 20B—20B in FIG. 2OA.
- FIG. 21 is an If plane view taken along line 21-21 in FIG. 2OA above.
- the sixth embodiment differs from the first embodiment shown in FIGS. 1 to 5 in the following structure.
- four engagement holes 3 are formed in the work pallet 2 at intervals. Similar to FIG. 1 described above, two engaging holes 3 3 facing diagonally are provided with a first plug means (plug means) 4 having a positioning function and a locking function, and a second plug means (another plug means). Means) 5 elastic sleeves (engaging tools) 1 2-1 2 are inserted. Further, the elastic sleeves 12 of the third plug means 6 having only the lock function are inserted into the remaining two engagement holes 3 33, respectively.
- the diameter expansion mechanism 4a of the first plug means 4 radially expands the above-mentioned elastic sleeve 12 by wedge action, and the peripheral wall of the elastic sleeve 12
- the work pallet 2 is positioned and fixed in a horizontal direction on the base plate 1 via the elastic sleeve 12 so that almost the entire circumference of the work pallet is brought into close contact with the engagement hole 3.
- the expanding mechanism 5a of the second plug means 5 has a center pillar 1 1 1 1 1 1 A diameter increasing force is applied to the elastic sleeve 12 in two directions substantially orthogonal to the straight line L connecting the axes A ⁇ B to each other. This prevents the work pallet 2 from turning around the axis A.
- the third plug means 6 with a lock function supports the elastic sleeve 12 so as to be movable in a radial direction with respect to a housing 9 described later, and thus does not have the positioning function.
- the first plug means 4 and the second plug means 5 have the same structure except for the difference in the diameter expansion mechanism described above, and as shown in FIGS. 2OA and 20B and FIG. The following structures are common.
- An annular shaft 11 is projected upward from the housing 9, and the elastic sleeve 12 is supported on the outer periphery of the shaft 11.
- the elastic sleeve 12 is provided with a slit 74 extending straight upward and downward, and is formed of an annular collet almost in the same manner as in FIG. 16A described above.
- the elastic sleeve 12 is diametrically expandable and contractible between the cap 27 fixed to the upper end of the center column 11 and the housing 9 so as to prevent vertical movement. Inserted.
- An annular wedge space W is formed between the center column 11 and the elastic sleeve 12 so as to narrow downward.
- the outer peripheral surface of the above-mentioned center column 11 is formed straight in the vertical direction, and the inner peripheral surface of the above-mentioned collective elastic sleeve 12 is formed so as to narrow downward.
- the wedge member 15 is inserted into the wedge space W.
- the wedge member 15 is also provided with a slit 61 that extends straight in the vertical direction, and is formed of an annular collet almost in the same manner as in FIGS. 1OA and 1OB (or FIGS. 11A and 11B). It has been.
- a detent pin 1 1 1 is projected radially outward from the wedge member 15 and The pin 111 of the elastic sleeve 12 is inserted into the slit 74 of the elastic sleeve 12. This prevents the elastic sleeve 12 from rotating around the axis. Further, similarly to FIG. 1OA described above, the output portion 44 inserted into the cylindrical hole of the center column 11 and the collet-type wedge member 15 are connected by the connection pin 63. Are linked.
- the above-described sixth embodiment operates in substantially the same manner as the first embodiment in FIG. That is, in the above-described release state from FIG. 2OA to FIG. 21, the pressurized oil is supplied to the release chamber 37. Accordingly, the piston 33 raises the output portion 44 against the urging force of the lock spring 35, and the output portion 44 raises the wedge member 15, and the collective wedge
- the member 15 is slightly expanded in diameter by its own elastic restoring force, and the collet-type elastic sleeve 12 is switched to a reduced diameter state by its own elastic restoring force.
- the pressurized oil in the release chamber 37 is discharged.
- the piston 33 descends due to the urging force of the lock spring 35, and the piston 33 strongly lowers the wedge member 15 via the output portion 44.
- the diameter of the elastic sleeve 12 is increased while the diameter of the wedge member 15 is reduced, and the elastic sleeve 12 comes into close contact with the engagement hole 3.
- the work pallet 2 force is applied via the expanded elastic sleeve 12, the wedge member 15, which is reduced in diameter and adhered to the center pole 11, and the center column 11 in this order. And is positioned on the base plate 1.
- pressurized oil may be supplied to the release chamber 37 as described above.
- the wedge member 15 is raised, and the elastic sleeve 12 is reduced in diameter by its own elastic restoring force. Therefore, the locked state is released. Thereafter, the work pallet 2 is raised.
- the engagement between the engagement hole 3 and the elastic sleeve 12 can be increased. This has the advantage that the radial gap between them can be set to a large value.
- FIG. 22 shows a modification of the diameter-enlarging mechanism 4a provided in the first plug means 4, and is a partial view similar to FIG. 21 described above.
- the upper part of the housing 9 is projected upward at the outer periphery of the bottom of the annular wedge space W, and the collet-type elastic sleeve 1 is provided between the annular projection 114 and the cap 27. 2 is supported.
- the lower part of the slit 74 of the elastic sleeve 12 can be covered by the lower part of the wedge member 15. Therefore, it is possible to prevent foreign matter in the atmosphere from entering the wedge space W.
- annular sleeve (not shown) may be attached between the housing 9 and the elastic sleeve 12.
- FIG. 23 shows a seventh embodiment of the present invention, and is a view similar to FIGS. 2OA and 21 described above.
- the lock spring 35 composed of a plurality of dishpanes is mounted between the cap 27 and the wedge member 15.
- the wedge member 15 and the piston 33 are connected by a plurality of connecting rods 117 arranged at intervals in the circumferential direction. Pin outer end force of the non-rotating pin 1 1 1 fixed to the wedge member 15 described above ⁇ Introduced into the slit 74 of the elastic sleeve 12 described above, and the inner end of the pin is the vertical groove of the center column 11 Introduced in 1 1 8
- FIG. 24 shows an eighth embodiment of the present invention, and is similar to FIG. 21 described above.
- the inner peripheral surface of the elastic sleeve 12 is formed straight in the vertical direction.
- the outer peripheral surface of the center column 11 is constituted by a tapered surface that narrows upward.
- FIGS. 25A to 25F show the expanding mechanism 5a of the second plug means 5 and are views similar to FIG. 20B, respectively, and correspond to FIG. 5 described above. It is a figure.
- FIG. 25A two projections 62 facing each other are provided in the engagement hole 3, and the entire outer periphery of the elastic sleeve 12 is formed in a circular shape.
- the two projections 62 are provided on the outer periphery of the center column 11.
- the two projections 62 are provided on the inner periphery of the wedge member 15.
- the two projections 62 are provided on the outer periphery of the wedge member 15.
- the two protrusions 62 are provided on the inner periphery of the elastic sleeve 12.
- the two projections 62 are provided on the outer periphery of the elastic sleeve 12.
- FIGS. 26A to 28 show a ninth embodiment of the present invention.
- FIG. 26A is a view similar to FIG. 2OA described above.
- FIG. 26B is a plan view similar to FIG. 20B described above.
- FIG. 27 is a sectional view taken along line 27-27 in FIG. 26B.
- FIG. 28 is a partially enlarged view of the cross-sectional view of the diameter expanding mechanism 4a in FIG. 26A described above.
- the first plug means 4 of the ninth embodiment differs from the above-described sixth embodiment of FIG. 21 from FIG.
- annular plug 121 inserted into the engagement hole 3 is Is arranged on the outer periphery of the wedge member 15.
- the annular plug 12 1 is formed integrally with the cap 27.
- Three pressing tools (engaging tools) 12 are supported on the peripheral wall 12 21 a of the above-mentioned annular plug 12 21 so as to be movable in the radial direction at intervals in the circumferential direction.
- the outer surface of the wedge member 15 is engaged with the inner surface of each pressing tool 12 from above from the upper side. is there.
- Each pressing tool 12 is urged inward in the radial direction by the return means 122.
- the return means 122 comprises a rod-shaped panel mounted between the annular plug 121 and the through hole 123 of the pressing tool 122 described above.
- the operation of the ninth embodiment is different from that of each of the above-described embodiments in that, at the time of the opening operation, each of the pressing tools 12 supported by the annular plugs 12 1 moves outward in the radial direction. The outer surface of each pressing tool 12 protrudes and comes into close contact with the engaging hole 3.
- the base plate 1 is provided with a supply port 125 for supplying a cleaning fluid such as compressed air, and a fitting gap between the peripheral wall 121 a of the annular plug 121 and the pressing tool 122 is provided.
- a discharge port 126 for the cleaning fluid is formed, and the discharge port 126 is connected to the supply port 125 through the wedge space W.
- FIG. 29 shows a modified example of the return means 122 provided in the diameter expanding mechanism 4a, and is a view similar to FIG. 28 described above.
- an inclined groove 125 is provided on the outer peripheral surface of the wedge member 15 at intervals in the circumferential direction, and the inclined groove 129 is formed in a T shape in plan view.
- the above-mentioned return means 122 is constituted by a fitting structure between the both side walls of the above-mentioned inclined groove 122 and the inner end of the above-mentioned pressing tool 122.
- inclined groove 129 may be formed in a V shape or the like instead of a T shape in plan view.
- the pressing tool 12 may be indirectly engaged via another member instead of directly engaging the outer surface of the wedge member 15. Instead of providing the three pressing tools 12 described above, two pressing tools may be provided, or four or more pressing tools may be provided. Also, the outer surface of the pressing tool 12 may be formed in a saw blade shape or an uneven shape instead of being formed straight in the vertical direction.
- FIG. 30 shows a tenth embodiment of the present invention, which is preceded by the embodiment of FIG. This is an application of the embodiment of FIG. 13A.
- the upper rod 43 is projected upward from the spring receiver 67 of the driving means 31, and a female screw 131 is formed on the upper part of the upper rod 43, and the female screw 131 is formed.
- a hexagon socket head bolt 1 3 2 is screwed into 3 1.
- the panel receiver 67 is lowered by 5 so that the connecting pin 63 locks the wedge member 15 downward.
- FIG. 31 showing the eleventh embodiment is similar to FIG. 30 described above. This second
- the eleventh embodiment differs from the above-described embodiment of FIG. 30 in the following points.
- the port 13 with hexagonal hole 13 is rotatably supported by the cap 27 fixed to the center column 11 so as not to move up and down. Further, the wedge space W and the wedge member 15 are formed so as to narrow upward.
- FIG. 32 shows a 12th embodiment of the present invention, which is a positioning device having a built-in clamp means, wherein the right half shows a released state and the left half shows a locked state.
- FIG. 32 is different from the embodiment of FIG. The form is applied, and the following points are different from the structure of Fig.17.
- the elastic sleeve 12 employs a collet instead of a thin cylinder, and has an outer peripheral surface formed to be straight in the vertical direction and an inner peripheral surface to be narrowed downward.
- the outer peripheral surface of the center column 11 is also formed straight in the vertical direction.
- the wedge member 15 is also formed of one annular collet, and is formed so that the peripheral wall thereof is narrowed downward.
- the hydraulic oil in the hydraulic chamber 95 is discharged and the clamp piston 94 lowers the clamp piston 94 and the rod 87.
- the panel receiver 92 is moved by the lock panel 35 composed of two plate panels through the connecting pin 63 to the wedge member 15.
- the wedge member 15 causes the elastic sleeve 12 to come into close contact with the engagement hole 3.
- the clamp spring 94 switches the engagement ball (another engagement tool) 84 to the engagement position X via the tapered pressing surface 88 of the rod 87.
- the engagement ball 84 presses the taper surface 82 below the clamp hole 81 downward.
- the rod 87 strongly presses the work pallet 2 against the base plate 1 via the engaging pole 84.
- the above-described positioning driving means 31 is constituted by the panel receiver 92, the lock panel 35, and the clamping screw 91.
- the clamp driving means 96 is constituted by the clamp biston 91 and the clamp panel 94 described above.
- a detection nozzle hole 138 for compressed air is opened.
- the plurality of wedge members 15 of the first embodiment are obtained by cutting an annular cylinder prepared in a predetermined shape by turning or the like at equal intervals in the circumferential direction instead of processing a pin or a rod. It is also possible to use these divided bodies.
- the wedge member 15 described above may be configured with four or more instead of one to three.
- the shapes of the wedge space W and the wedge member 15 are not limited to the illustrated shapes, and those skilled in the art can make various changes.
- the wedge member 15 may be formed of a rolling element such as a pawl port.
- the urging means for locking the positioning driving means 31 may be a rubber, a gas spring, or the like, instead of the illustrated panel 35.
- the driving means 31 may be a panel return type instead of the panel lock type, and may be a double hydraulic type instead of the single hydraulic type.
- the pressure fluid used for the lock or the release may be a gas such as compressed air instead of the illustrated pressure oil.
- the combination of the first block and the second block is a combination of a table of a machine tool and a work pallet, a combination of a work pallet and a jig base, It may be a combination of a tool base and a work piece, or a combination of a work jig such as a welding jig and a work piece such as a work piece. Further, the present invention is also applicable to positioning of workpieces / tools of various processing machines such as a laser processing machine and a discharge processing machine.
- the positioning device of the present invention uses only one of the plug means instead of using two different plug means 4'5 as exemplified in FIG. 1 (or FIG. 19). It is also possible to use one or more, or to use a combination of three or more of the different plug means 4, 5 described above.
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- Engineering & Computer Science (AREA)
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- Machine Tool Units (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
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US10/534,458 US7168695B2 (en) | 2002-11-29 | 2003-11-27 | Positioning device |
AU2003302644A AU2003302644A1 (en) | 2002-11-29 | 2003-11-27 | Positioning device |
Applications Claiming Priority (4)
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JP2002-347328 | 2002-11-29 | ||
JP2002347328 | 2002-11-29 | ||
JP2003171645A JP2004223702A (ja) | 2002-11-29 | 2003-06-17 | 位置決め装置 |
JP2003-171645 | 2003-06-17 |
Publications (1)
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WO2004050297A1 true WO2004050297A1 (ja) | 2004-06-17 |
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PCT/JP2003/015139 WO2004050297A1 (ja) | 2002-11-29 | 2003-11-27 | 位置決め装置 |
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US (1) | US7168695B2 (ja) |
JP (1) | JP2004223702A (ja) |
AU (1) | AU2003302644A1 (ja) |
TW (1) | TW200510110A (ja) |
WO (1) | WO2004050297A1 (ja) |
Cited By (1)
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JP2004223702A (ja) * | 2002-11-29 | 2004-08-12 | Kosmek Ltd | 位置決め装置 |
US7325798B2 (en) * | 2003-01-29 | 2008-02-05 | Kosmek Ltd | Clamping device and clamping system using the same |
KR20060037336A (ko) * | 2003-07-25 | 2006-05-03 | 가부시키가이샤 코스멕 | 클램프 장치 |
DE102004006418A1 (de) * | 2004-02-09 | 2005-08-25 | Zero-Point-Systems Günther Stark GmbH | Schnellspannzylinder mit Sicherheitsvorrichtung gegen Blockierung |
WO2005084882A1 (ja) * | 2004-03-08 | 2005-09-15 | Pascal Engineering Corporation | クランプ装置及びクランプ方法 |
US20070262508A1 (en) * | 2004-08-20 | 2007-11-15 | Yosuke Haruna | Positioning Apparatus and Positioning System Having the Same |
JP4747282B2 (ja) * | 2005-03-29 | 2011-08-17 | 三菱マテリアル株式会社 | インサート着脱式ドリル |
JP4710450B2 (ja) * | 2005-07-12 | 2011-06-29 | 株式会社デンソー | 位置決め装置 |
FR2909914B1 (fr) * | 2006-12-15 | 2009-06-26 | Thales Sa | Dispositif de fixation rapide d'un ensemble mecanique sur un support |
JP4799487B2 (ja) * | 2007-06-19 | 2011-10-26 | トヨタ自動車株式会社 | ワークの位置決め方法、及び位置決め装置 |
DE102007038656A1 (de) * | 2007-08-15 | 2009-02-19 | Ludwig Ehrhardt Gmbh | Niederzugspannvorrichtung zum Bohrungsspannen von Gegenständen |
JP4933380B2 (ja) * | 2007-08-21 | 2012-05-16 | 株式会社コスメック | 穴を有する素材の位置決め固定装置 |
JP5385710B2 (ja) * | 2009-07-09 | 2014-01-08 | パスカルエンジニアリング株式会社 | クランプ装置 |
JP5557630B2 (ja) * | 2010-07-13 | 2014-07-23 | パスカルエンジニアリング株式会社 | クランプ装置 |
JP2012040674A (ja) * | 2010-08-23 | 2012-03-01 | Mitsubishi Heavy Ind Ltd | クランパ、水室内作業装置およびクランプ方法 |
JP2012042185A (ja) | 2010-08-23 | 2012-03-01 | Mitsubishi Heavy Ind Ltd | クランパおよび水室内作業装置 |
CN103068527B (zh) * | 2010-08-24 | 2015-09-30 | Fcs系统有限责任公司 | 用于机械工件的锁定装置 |
CN102434547A (zh) * | 2010-09-29 | 2012-05-02 | 富泰华工业(深圳)有限公司 | 固定机构 |
US9815156B2 (en) | 2011-02-18 | 2017-11-14 | Kosmek Ltd. | Positioning apparatus |
CN102248412B (zh) * | 2011-06-17 | 2013-02-13 | 中联重科股份有限公司 | 通用定位组件和定位装置 |
KR20130014722A (ko) * | 2011-08-01 | 2013-02-12 | 두산인프라코어 주식회사 | 공작기계의 로터리 테이블 구조 |
CN102889870B (zh) * | 2012-10-22 | 2015-01-21 | 无锡市迈日机器制造有限公司 | 定位分中机构 |
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JP6304536B2 (ja) * | 2013-10-16 | 2018-04-04 | Smc株式会社 | ワーク位置決め装置 |
JP6283219B2 (ja) * | 2013-12-05 | 2018-02-21 | 株式会社コスメック | クランプ装置 |
JP6207568B2 (ja) * | 2015-10-20 | 2017-10-04 | 株式会社オーエム製作所 | 偏心量調整機構を備えた旋盤 |
ITUB20160781A1 (it) * | 2016-01-27 | 2017-07-27 | Hydroblock S R L | Dispositivo per il bloccaggio di pezzi su macchine utensili |
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JP7122748B2 (ja) * | 2018-10-30 | 2022-08-22 | パスカルエンジニアリング株式会社 | 位置決め固定装置 |
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- 2003-06-17 JP JP2003171645A patent/JP2004223702A/ja active Pending
- 2003-11-27 US US10/534,458 patent/US7168695B2/en not_active Expired - Fee Related
- 2003-11-27 WO PCT/JP2003/015139 patent/WO2004050297A1/ja active Application Filing
- 2003-11-27 AU AU2003302644A patent/AU2003302644A1/en not_active Abandoned
- 2003-11-28 TW TW092133615A patent/TW200510110A/zh unknown
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JPH05154705A (ja) * | 1991-12-04 | 1993-06-22 | Mitsubishi Heavy Ind Ltd | 防塵機能を有するカッタアーバ |
EP1078713A1 (en) * | 1999-08-03 | 2001-02-28 | Kabushiki Kaisha Kosmek | Clamping apparatus with datum function |
JP2002254266A (ja) * | 2000-12-18 | 2002-09-10 | Pascal Corp | パレットの位置決め固定装置 |
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CN111120529A (zh) * | 2019-12-31 | 2020-05-08 | 博世华域转向系统有限公司 | 一种用于伺服电机测试使用的弹性联轴器 |
Also Published As
Publication number | Publication date |
---|---|
JP2004223702A (ja) | 2004-08-12 |
AU2003302644A1 (en) | 2004-06-23 |
US7168695B2 (en) | 2007-01-30 |
TW200510110A (en) | 2005-03-16 |
US20060033255A1 (en) | 2006-02-16 |
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