WO2007060986A1 - クランプ装置およびその装置を利用したクランピングシステム - Google Patents
クランプ装置およびその装置を利用したクランピングシステム Download PDFInfo
- Publication number
- WO2007060986A1 WO2007060986A1 PCT/JP2006/323309 JP2006323309W WO2007060986A1 WO 2007060986 A1 WO2007060986 A1 WO 2007060986A1 JP 2006323309 W JP2006323309 W JP 2006323309W WO 2007060986 A1 WO2007060986 A1 WO 2007060986A1
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- WIPO (PCT)
- Prior art keywords
- clamping device
- rigid sleeve
- hole
- taper
- reference block
- Prior art date
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- 230000002093 peripheral effect Effects 0.000 claims description 30
- 239000012530 fluid Substances 0.000 claims description 11
- 238000001514 detection method Methods 0.000 claims description 9
- 238000012790 confirmation Methods 0.000 claims description 7
- 238000004891 communication Methods 0.000 claims description 6
- 229920003002 synthetic resin Polymers 0.000 claims description 3
- 239000000057 synthetic resin Substances 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 2
- 230000004048 modification Effects 0.000 description 6
- 238000012986 modification Methods 0.000 description 6
- 230000007246 mechanism Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 230000005489 elastic deformation Effects 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
- B23Q3/02—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for mounting on a work-table, tool-slide, or analogous part
- B23Q3/06—Work-clamping means
-
- 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
-
- 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
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
Definitions
- the present invention relates to a clamping device for fixing a movable block such as a work pallet or a workpiece to a reference block such as a table of a machine tool, and further relates to a clamping system using the clamping device.
- Patent Document 1 Japanese Patent No. 355001 0
- the prior art was proposed by the assignee of the present invention and is structured as follows.
- the tapered outer surface of the upper portion of the pull rod is engaged with the inner peripheral surface of the annular collet from above, and the collet and the pull rod are arranged to be movable in the radial direction with respect to the nosing.
- Patent Document 1 Japanese Patent No. 3550010
- the above-described conventional apparatus has only a function of fixing a workpiece, and does not have a function of positioning the workpiece. For this reason, when constructing a system for fixing the workpiece after positioning it, it is necessary to newly install a dedicated positioning device. As a result, the crunching system is complicated and large.
- An object of the present invention is to provide a clamping device having a positioning function and a clamping system using the device.
- the invention of claim 1 includes a socket hole (3) as shown in FIGS. 1 to 4B, 6A and 6B, 8 or 9A to 9D, for example.
- Movable block (2) Is clamped to the reference block (1) as follows.
- the reference block (1) is provided with a central hole (20) having a tapered inner surface (23) narrowing in the proximal direction so as to face the socket hole (3).
- the center hole (20) protrudes in the distal direction from the center hole (20) that is the same as the taper outer surface (27) that can be taper-engaged with the taper inner surface (23).
- the output member (48) is inserted into the cylindrical hole (21a) of the rigid sleeve (21).
- the output member (48) is configured to be connectable to a clamp tool (33) provided on the protrusion (25) so as to be inserted into the socket hole (3).
- the driving means (D) moves the output member (48) in the proximal direction
- the output member (48) moves the clamping tool (33) against the advancing means (45).
- the taper outer surface (27) of the rigid sleeve (21) is teno-engaged with the tapered inner surface (23) of the center hole (20) while being moved to lock outward and radially outward.
- the rigid sleeve refers to a cylindrical member that is configured to have very little elastic deformation, unlike a sleeve that is elastically deformed in the diametrical direction, such as a collet.
- clamp tool for example, when an annular clamp tool such as a collet is elastically deformed and expands or contracts in the radial direction, a plurality of clamp tools arranged at intervals in the circumferential direction are arranged radially outward. A case where the inward / outward movement is performed may be considered.
- an automatic means using a fluid pressure actuator or the like and a manual means using a screw thrust or the like can be considered.
- the present invention operates as follows, for example, as shown in FIGS. 3A to 4B.
- the output member 48 raises the clamp tool 33 in the distal direction (upward in the figure), and the clamp tool 33 is switched to the reduced diameter state.
- the rigid sleeve 21 is held in the raised position by the advancement means 45.
- the movable block 2 When positioning the movable block 2 on the reference block 1, first, the movable block 2 is lowered in the released state of FIG. 3A, and the socket hole 3 is externally fitted to the clamp tool 33. Move movable block 2 to reference block 1. As shown in FIG. 3A, the movable block 2 is received by the reference block 1 via another member such as the rigid sleeve 21 and the movable block 2 is changed to the reference block 1 at the time of reception. It may be the case of receiving directly.
- the clamp tool 33 further expands the diameter of the rigid sleeve 21 pressed upward by the advancing means 45, and the clamp tool 33 is inserted into the socket hole. Adheres closely to the inner peripheral surface of 3.
- the rigid sleeve 21 descends against the advancing means 45, and the taper outer surface 27 of the rigid sleeve 21 contacts the taper inner surface 23 of the center hole 20. Engage. Thereby, the rigid sleeve 21 is constrained to the reference block 1 in the radial direction (horizontal direction) and the axial direction (vertical direction) through the taper engagement.
- the movable block 2 is positioned in the horizontal direction on the reference block 1 via the rigid sleeve 21 in the restrained state and the clamp 33 that is in close contact with the socket hole 3.
- the output member 48 is further driven downward with respect to the rigid sleeve 21, and the output member 48 presses the movable block 2 downward via the clamp 33.
- the supported surface 2 a of the movable block 2 is strongly pressed against the support surface la of the reference block 1.
- the present invention has the following advantages.
- the clamping device with a positioning function can be configured simply and compactly.
- the rigid sleeve can be integrated with the reference block by the taper outer surface of the rigid sleeve being taper-engaged with the taper inner surface of the center hole 20.
- the above-mentioned rigid sleeve increases in rigidity in the radial direction (horizontal direction).
- the movable block can be maintained in the positioning state.
- the above-described rigid sleeve is configured as an independent part separate from the reference block, it can be easily and inexpensively replaced even when worn.
- the rigid sleeve is an independent part, the degree of freedom in design increases in the selection of material, thickness, surface treatment, etc., so it can be made with high accuracy and high rigidity. As a result, it is possible to provide a clamping device that can be used maintenance-free over a long period of time.
- the flange portion (28) protrudes radially outward from the rigid sleeve (21) outside the center hole (20), and the flange portion (28) and the reference block (1)
- the advancement means (45) mentioned above are arranged in a ring.
- the clamping device can be configured simply and compactly with a reduced number of parts.
- the annular advancing means (45) is preferably constituted by an elastic member for sealing such as rubber or synthetic resin.
- the elastic member can surely prevent foreign matter such as chips from entering the reference block.
- a flange portion (28) protrudes radially outward from the rigid sleeve (21) outside the center hole (20).
- the advancement means (45) presses the movable block (2) to support the supported surface of the movable block (2).
- a seating gap (E) is formed between (2a) and the support surface (la) of the reference block (1).
- a detection hole (74) for pressure fluid for seating confirmation is opened on the support surface (la).
- the seating gap is formed when the movable block is separated from the reference block force, the seating gap can be eliminated in the state where the movable block is seated on the reference block. Detection and separation between the separated state and the seated state wear.
- the reference block (1) is provided with a pressure fluid supply port (76) for lock confirmation.
- the supply port (76) communicates with the external space through a lock gap (F) between the tapered inner surface (23) and the tapered outer surface (27).
- the tapered outer surface (27) is configured to block communication between the supply port (76) and the external space when the tapered inner surface (23) is taper-engaged.
- a lock gap is formed in the released state, and the lock gap can be eliminated in the locked state, so that the release state and the locked state can be reliably distinguished and detected.
- substantially the tapered inner surface (23) of the center hole (20) provided in the reference block (1) substantially the tapered inner surface (23) of the center hole (20) provided in the reference block (1).
- the taper outer surface (27) of the rigid sleeve (21) may be configured to be capable of taper engagement over the entire circumference.
- the present invention may have the following configuration.
- a pair of projecting portions (80X80) facing in the radial direction are provided on at least one of the inner periphery of the center hole (20) provided in the reference block (1) and the outer periphery of the rigid sleeve (21). I will.
- the tapered inner surface (23) or the tapered outer surface (27) is formed on each protrusion (80).
- an allowable movement space (81X81) defined by the protrusion (80X80) is radially formed. Form to face each other.
- the clamp device (33) is constituted by a collet that can be expanded and contracted in the diametrical direction, It is preferable to engage the front end side force wedge with the protruding portion (25) of the rigid sleeve (21).
- the clamp is wedge-engaged from the distal end side to the rigid sleeve, the wedge engaging portion can be easily covered with the distal end side force. This Therefore, foreign matter such as chips can be prevented from entering the wedge engaging portion. As a result, the clamping device can be used maintenance-free for a long time.
- a plurality of balls in the circumferential wall of the protruding portion (25) of the rigid sleeve (21) arranged at intervals in the circumferential direction ( 96) to form the clamping device (33), and the output member (48) can be configured to switch the balls (96) to the radially outward engagement position (X).
- the present invention has the following advantages.
- the clamping device that also has ball force is arranged in the peripheral wall of the rigid sleeve, the portion to be inserted into the socket hole of the movable block can be made smaller in diameter compared to the case where the clamping device is arranged on the outer periphery of the rigid sleeve. Therefore, it is possible to provide a clamping device having a simple configuration suitable for a small-diameter socket hole.
- the clamping force with ball force can increase the amount of radial outward movement compared to the collet-type clamping tool. For this reason, it is possible to increase the fitting gap between the socket hole of the movable block and the outer peripheral surface of the protruding portion of the rigid sleeve, and the fitting operation between the socket hole and the rigid sleeve is facilitated.
- the socket hole of the movable block can be elastically deformed or plastically deformed to strongly adhere to the socket hole, so that a large clamping force can be secured.
- Clamping systems using the above-described clamping device include a case where one clamping device described in any of the above inventions is provided, and a case where a plurality of clamping devices according to a specific invention are provided, and a clamping device according to a different invention. A case where devices are combined is considered.
- FIG. 1 is a schematic diagram showing the principle of a scrambling system using the present invention, and is a cross-sectional view of the scrambling system.
- FIG. 2A is a cross-sectional view showing a first embodiment of the first clamping device of the above clamping system and corresponding to the arrow 2A-2A view of FIG. 1 or FIG. 2B.
- FIG. 2B is a plan view of the clamp device.
- FIG. 3A is an enlarged view of the main part of FIG. 2A, showing a released state of the clamp device.
- FIG. 3B is a view similar to FIG. 3A, showing the lock start state of the clamp device.
- FIG. 4A is a view similar to FIG. 3A, showing a state where the clamp device is being locked.
- FIG. 4B is a view similar to FIG. 3A showing the lock end state of the clamp device.
- FIG. 5A to FIG. 5C show modified examples of the first clamping device.
- FIG. 5A is a view similar to FIG. 3A.
- FIG. 5B is a cross-sectional view taken along line 5B-5B in FIG. 5A.
- FIG. 5C is a cross-sectional view taken along line 5C-5C of FIG. 5A.
- FIGS. 6A and 6B show a second clamping device of the above-mentioned clamping system.
- 6A is a cross-sectional view taken along the line 6A-6A in FIG. 6B and is similar to FIG. 5A.
- FIG. 6B is a cross-sectional view taken along line 6B-6B of FIG. 6A.
- FIG. 6C is a diagram similar to FIG. 6B, showing a first modification of the second clamping device.
- FIG. 6D is a view similar to FIG. 6B, showing a second modification of the second clamping device.
- FIG. 7A and FIG. 7B show a third clamping device of the clamping system.
- FIG. 7A is a partial view similar to FIG. 5A.
- FIG. 7B is a cross-sectional view taken along line 7B-7B of FIG. 7A.
- FIG. 8 is a view similar to FIG. 2A, showing a second embodiment of the first clamp device.
- FIG. 9A to FIG. 9D show a third embodiment of the first clamping device.
- FIG. 9A shows a released state of the clamping device, and is a cross-sectional view corresponding to the arrow view taken along line 9A-9A in FIG. 9B.
- FIG. 9B is a cross-sectional view in plan view of FIG. 9A.
- FIG. 9C is a view similar to FIG. 9A, showing the locked state of the clamp device.
- FIG. 9D is a cross-sectional view in plan view of FIG. 9C.
- FIGS. 1 to 7B show an embodiment of the present invention, in which the clamping device of the present invention is applied to a clamping system for a work pallet.
- FIG. 1 is a cross-sectional view of the clamping system.
- FIG. 2A is a cross-sectional view of the first clamping device of the above-described clamping system, and is a view corresponding to the view taken along the line 2A-2A in FIG. 1 or FIG. 2B.
- FIG. 2B is a plan view of the clamping device. 3A to 4B are operation explanatory views. 5A to 5C show modified examples of the first clamping device.
- FIG. 6A and FIG. 6B show a second clamping device of the clamping system.
- FIG. 6C and FIG. 6D each show a modification of the second clamping device.
- FIG. 7A and FIG. 7B show a third clamping device of the clamping system.
- a reference block 1 is placed on a table T of a machine tool, and a work pallet 2 as a movable block is placed on a support surface la of the reference block 1.
- the supported surface 2a is received.
- a plurality of socket holes 3 that are also circular straight hole holes are opened.
- four socket holes 3 are shown.
- the reference block 1 includes a base plate 4 fixed to the table T.
- the base plate 4 has a first clamping device 11 and a second clamping device 12 having a positioning function and a locking function corresponding to the socket hole 3, and two third clamping devices having only a locking function. 13 ⁇ 13 are provided.
- the first clamp device 11 and the second clamp device 12 are arranged diagonally, and the two third clamp devices 13 ⁇ 13 are also arranged diagonally.
- each of the clamp devices 11, 12, and 13 described above has an annular clamp tool 33 that will be described later radially expanded by a wedge action so that substantially the entire peripheral wall of the annular clamp tool 33 is formed.
- the first clamping device 11 positions a later-described rigid sleeve 21 (see FIG. 3A) in the horizontal and vertical directions with respect to the reference block 1 almost simultaneously with the close contact of the clamp tool 33.
- the second clamping device 12 positions the rigid sleeve 21 (see FIG.
- the third clamping device 13 is configured so that the rigid sleeve 21 can be moved in the horizontal direction with respect to the reference block 1 (see FIGS. 7A and 7B). Do not have a positioning function.
- the first clamping device 11 and the second clamping device 12 have the same structure except for the differences described later, and basically have the following structure in common.
- the lower portion of the housing 15 is fitted into the mounting hole 4a of the base plate 4, and the flange 16 of the housing 15 is attached to the mounting hole 4a by the four tightening bolts 17. Fixed to the peripheral wall.
- a central hole 20 extending in the vertical direction is formed in the upper half of the housing 15 concentrically with the reference axis A (see FIGS. 1 and 2A).
- the central hole 20 is disposed so as to face the socket hole 3.
- a rigid sleeve 21 is inserted into the center hole 20 so as to be movable in the vertical direction (axial direction).
- the center hole 20 and the rigid sleeve 21 are configured as follows, as shown in the enlarged view of Fig. 3A.
- Tapered inner surfaces 23 and 23 are respectively formed at the upper and lower portions of the inner periphery of the center hole 20. Each tapered inner surface 23 is reduced in diameter as it goes downward (toward the base end).
- the rigid sleeve 21 includes a base 24 that is inserted into the central hole 20 and a protrusion 25 that can be inserted into the socket hole 3.
- the protrusion 25 protrudes upward (toward the tip) from the upper end of the center hole 20.
- a tapered outer surface 27 capable of being taper-engaged with the tapered inner surface 23 is provided on the outer peripheral surface of the base portion 24.
- the taper angle of the tapered inner surface 23 and the tapered outer surface 27 is preferably in the range of about 5 degrees and the force is also in the range of about 23 degrees, and more preferably in the range of about 10 degrees to about 16 degrees.
- the flange portion 28 protrudes outward in the radial direction from the lower portion of the protruding portion 25 above the center hole 20.
- a tapered outer peripheral surface 30 that is reduced in diameter as it goes upward is formed on the upper portion of the protruding portion 25.
- the tapered inner peripheral surface 34 of the annular clamp 33 is wedge-engaged with the tapered outer peripheral surface 30 of the rigid sleeve 21 by the upper force.
- the straight outer peripheral surface 35 of the clamp 33 can be inserted into the socket hole 3 of the work pallet 2.
- the clamp 33 is formed in a collet shape. That is, one slit 36 extending in the vertical direction is formed in the peripheral wall of the clamp tool 33, so that the clamp tool 33 can be expanded and contracted in the diameter direction and reduced in diameter by its own elastic restoring force. Is done.
- An elastic member (advancing means) 45 is disposed between the upper portion of the peripheral wall of the center hole 20 and the flange portion 28.
- the elastic member 45 is constituted by a seal member such as rubber or synthetic resin, and presses the rigid sleeve 21 upward (toward the distal end). The rise of the above-described rigid sleeve 21 beyond a predetermined amount is prevented by a stopper 47 attached to the lower part of the rigid sleeve 21 !.
- An output member 48 is inserted into the housing 15 so as to be movable up and down.
- the output member 48 includes a piston 50 inserted into the cylinder hole 49 in the lower part of the housing 15 in a sealed manner, and a piston mouth 52 protruding upward from the piston 50 and inserted into the rod hole 51 in a sealed manner. And a connecting rod 53 screwed to the piston rod 52.
- the connecting rod 53 is inserted into the cylindrical hole 21 a of the rigid sleeve 21. Between the upper flange 56 of the connecting rod 53 and the head 54 of the connecting rod 53, the upper flange 57 of the clamp 33 is slidably fitted in the radial direction.
- a lock means 61 and a release means 62 constituting the drive means D are provided in the housing 15.
- the lock means 61 is constituted by the piston 50 and a lock chamber 63 formed on the upper side of the piston 50.
- the lock chamber 63 communicates with the pressure oil supply / discharge rod 64 for the lock.
- the release means 62 includes the piston 50 and a release chamber 66 formed on the lower side of the piston 50.
- the release chamber 66 communicates with a release pressure oil supply / discharge port 67.
- a throttle pin 70 is fitted in the longitudinal path of the lock supply / discharge path 69, and the fitting clearance Constrains the throttle path.
- a plurality of bosses 72 protrude upward from the upper surface of the housing 15 at intervals in the circumferential direction, and the upper surface of the boss 72 constitutes the support surface la of the reference block 1.
- the first clamp device 11 is provided with seating confirmation means. That is, the detection hole 74 is opened in the support surface la, and compressed air for detection is supplied to the detection hole 74.
- the pressure in the detection hole 74 increases. By detecting the pressure increase with a pressure switch or the like, it can be confirmed that the work pallet 2 is seated on the housing 15.
- the air supply port 76 for lock confirmation includes a lateral passage 77 in the housing 15, a lock gap F between the lower tapered inner surface 23 and the taper outer surface 27, and a communication groove provided in the stopper 47 (see FIG. (Not shown), the clearance between the cylindrical hole 21a of the rigid sleeve 21 and the outer peripheral surface of the connecting rod 53, and the slit 36 of the clamp 33 are sequentially communicated with the external space.
- the tapered outer surface 27 comes into contact with the tapered inner surface 23 to block the above communication, the pressure at the air supply port 76 increases. By detecting the pressure increase with a pressure switch or the like, it is confirmed that the clamp 33 and the rigid sleeve 21 are lowered and locked.
- the stopper 47 is provided with the communication groove (not shown). Instead, the lock gap F between the upper taper inner surface 23 and the taper outer surface 27 is provided as a communication path (not shown). It is also possible to communicate with the cylindrical hole 21a of the rigid sleeve 21 via
- the positioning mechanism 11a of the first clamping device 11 is arranged on the entire circumference of the tapered inner surface 23 of the center hole 20 as described above.
- the tapered outer surface 27 of the rigid sleeve 21 is configured to be capable of taper engagement.
- FIG. 5A to 5C show a modification of the first clamp device 11 described above.
- Figure 5A is similar to Figure 3A above.
- FIG. 5B is a cross-sectional view taken along line 5B-5B in FIG. 5A.
- FIG. 5C is a cross-sectional view taken along line 5C-5C of FIG. 5A.
- the advancement means 45 is constituted by a plurality of dish panels stacked in the vertical direction.
- the outer periphery of the upper half of the collet clamp 33 is covered with a cover tube 58.
- the cover cylinder 58 prevents foreign matter such as chips from entering the inside of the rigid sleeve 21 through the slit 36.
- FIGS. 6A and 6B the positioning mechanism 12a of the second clamping device 12 is different from the positioning mechanism 11a of the first clamping device 11 in the following structure.
- 6A is a cross-sectional view taken along the line 6A-6A in FIG. 6B and is similar to FIG. 5A.
- FIG. 6B is a cross-sectional view taken along line 6B-6B of FIG. 6A.
- a pair of projecting portions 80, 80 that fit in the radial direction are provided on the outer periphery of the rigid sleeve 21, and the tapered outer surface 27 is formed on each projecting portion 80.
- a movement-permissible space 81 81 defined by the protrusion SO-SO is radially provided between the inner periphery of the center hole 20 and the outer periphery of the rigid sleeve 21. It is formed to face each other.
- the rigid sleeve 21 functions to eliminate the fitting gap in the facing direction of the protrusions 80 and 80, while the rigid sleeve 21 moves in the radial direction perpendicular to the facing direction. It is acceptable.
- Reference numeral 82 in Figs. 6 and 6 is a detent pin.
- FIG. 6C shows a first modification of the positioning mechanism 12a.
- a pair of projecting portions 80, 80 facing in the radial direction are provided on the inner periphery of the center hole 20, and the tapered inner surface 23 is formed at each projecting portion 80. Further, the pair of movement allowable spaces 81 81 are also formed in the same manner as in FIG.
- the second modified example of FIG. 6D is obtained by changing the first modified example of FIG. 6C described above as follows. That is, the taper inner surface 23 and the taper outer surface 27 are constituted by planes instead of the circumferential surfaces.
- the third clamp device 13 is different from the first clamp device 11 in the following structure, as shown in FIGS.
- Both peripheral surfaces of the inner peripheral surface of the center hole 20 and the outer peripheral surface of the rigid sleeve 21 are in the vertical direction.
- An annular gap G is formed between the two peripheral surfaces and allows the rigid sleeve 21 to move in the radial direction.
- a dust seal 46 is attached to the outer periphery of the annular rubber advancement means 45.
- Each of the clamp devices 11 ⁇ 12 ⁇ 13 operates almost as follows.
- the pressure oil in the lock chamber 63 is discharged and the pressure oil is supplied to the release chamber 66.
- the piston 50 raises the annular clamp 33 through the connecting rod 53, and the clamp 33 is switched to the reduced diameter state.
- the rigid sleeve 21 is lifted by an advancing stroke by an elastic member 45 as an advancing means, and is lightly taper-engaged with the clamp tool 33 or faces the clamp tool 33 with a slight gap.
- the pressure oil in the release chamber 66 is discharged and the pressure oil is supplied to the lock chamber 63.
- the piston 50 lowers the clamp tool 33 through the connecting rod 53, and the tapered inner peripheral surface 34 of the clamp tool 33 is wedge-engaged with the tapered outer peripheral surface 30 of the rigid sleeve 21.
- the diameter of the clamp 33 is expanded with respect to the rigid sleeve 21 held substantially in the raised position by the urging force of the elastic member 45, and the socket hole 3 is inserted into the socket hole 3. Get in touch.
- the upper end surface of the piston rod 52 and the rigid three A contact gap N2 larger than the contact gap N1 in FIG. 3A is formed between the lower end surface of the hub 21.
- the clamping tool 33 expands the diameter of the elastic member 45 while compressing it downward via the rigid sleeve 21, and comes into close contact with the socket hole 3.
- the supported surface 2a of the work pallet 2 contacts the supporting surface la of the reference block 1.
- a downward stroke Ml corresponding to the seating clearance E in FIG. 3B is formed above the stopper 47, and the upper end surface of the piston rod 52 and the lower end surface of the rigid sleeve 21 are formed.
- a contact gap N3 which is slightly larger than the contact gap N2 in FIG. 3B is formed.
- the clamp tool 33 moves while sliding downward with respect to the inner peripheral surface of the socket hole 3, and the clamp tool 33 moves the elastic member 45 over.
- the rigid sleeve 21 is further lowered while being compressed.
- the tapered surface 27 of the rigid sleeve 21 is taper-engaged with the tapered inner surface 23 of the center hole 20.
- the rigid sleeve 21 is restrained by the reference block 1 in the radial direction (horizontal direction) and the axial direction (vertical direction) through the taper engagement. Then, the work pallet 2 is positioned in the horizontal direction on the housing 15 via the rigid sleeve 21 in the constrained state and the clamp tool 33 in close contact with the socket hole 3.
- the output member 48 is further driven downward with respect to the rigid sleeve 21, so that the taper outer surface 30 of the rigid sleeve 21 received by the housing 15 is attached to the taper of the clamp 33.
- the peripheral surface 34 is strongly wedge-engaged and expanded in diameter, and the straight outer peripheral surface 35 of the clamp 33 is firmly attached to the socket hole 3.
- the connecting rod 53 strongly presses the supported surface 2 a of the work pallet 2 against the supporting surface 1 a of the reference block 1 through the clamp tool 33 that is in close contact with the above-described force.
- the support surface la and the supported surface 2a may be almost completely in contact with each other in the released state of FIG. 3A and when the lock is started in FIG. 3B.
- the clamp 33 operates as follows when the lock is moved.
- the clamp 33 After the clamp 33 is brought into close contact with the socket hole 3, it is lowered while sliding with respect to the socket hole 3. As described above, when the taper outer surface 27 of the rigid sleeve 21 is taper-engaged with the taper inner surface 23, the clamp tool 33 is firmly attached to the socket hole 3, and the clamp tool 33 is connected to the work pallet 2 described above. Press firmly against the reference block 1 above.
- the two third clamping devices 13 ⁇ 13 having only a locking function allow the work pallet 2 to move through the clamping tool 33. It is firmly fixed to the reference block 1 described above.
- the pressure oil in the lock chamber 63 may be discharged and the pressure oil supplied to the release chamber 66 as described above.
- the piston 50 raises the clamp tool 33 via the connecting rod 53, and the clamp tool 33 is contracted by its own elastic restoring force, so that the locked state is released.
- the contact gap N1 shown in FIG. 3A may be eliminated and the piston rod 52 may forcibly push up the rigid sleeve 21.
- FIGS. 8 and 9A to 9D show a second embodiment and a third embodiment of the first clamping device 11 according to the present invention, respectively.
- members similar to those of the first embodiment described above are given the same reference numerals in principle, and different configurations from those of the first embodiment described above will be described.
- the second embodiment of Fig. 8 is a diagram similar to Fig. 2A.
- the driving means D is constructed in a manual manner.
- the lower part of the connecting rod 53 is screwed into the screw hole 88 of the base plate 4.
- a hexagon wrench 90 is inserted into the input hole 89 of the head 54 of the connecting rod 53, and the connecting rod 53 is rotated clockwise in plan view. Then, the head 54 is lowered while expanding the diameter of the clamp 33. Further, the elastic member (advancing means) 45 is formed in a horizontal U shape in a sectional view.
- base plate 4 and the housing 15 can be integrally formed instead of being configured separately as illustrated.
- the clamping device 33 of each embodiment described above is provided with a plurality of through-grooves that open alternately on the upper surface and the lower surface of each peripheral wall in the circumferential direction instead of the one provided with one slit 36 on each peripheral wall. It may be. Further, the clamp tool 33 can be constituted by a plurality of divided bodies arranged in the circumferential direction.
- the outer surface of the clamp 33 may be formed in a sawtooth shape or an uneven shape instead of being formed straight in the vertical direction.
- the clamp device 33 can adopt various known structures, not limited to the above-described structure.
- FIGS. 9A to 9D show a third embodiment of the first clamping device 11.
- FIG. 9A shows the released state of the clamping device 11, and is a cross-sectional view corresponding to the arrow view taken along the line 9A-9A in FIG. 9B.
- FIG. 9B is a cross-sectional view in plan view of FIG. 9A.
- FIG. 9C is a view similar to FIG. 9A, showing the locked state of the clamp device.
- FIG. 9D is a cross-sectional view in plan view of FIG. 9C.
- the rigid sleeve 21 has a top wall of 2 lb. Further, three through holes 95 extending in the radial direction are formed in the circumferential wall 25a of the protruding portion 25 of the rigid sleeve 21 at intervals in the circumferential direction. A ball 96 is inserted into each through-hole 95 so as to be movable in the radial direction. By reducing the diameter of the outer end of the through-hole 95, the ball 96 is prevented from coming out outward. The plurality of balls 96 constitutes the clamp 33.
- a groove 97 extending in the vertical direction is formed in the upper portion (tip portion) of the connecting rod 53 of the output member 48 so as to correspond to the balls 96 described above.
- the groove 97 has an output surface 98 and a retraction surface 99.
- the seating gap E is formed between the support surface la and the supported surface 2a, and the lock gap F is formed between the tapered inner surface 23 and the tapered outer surface 27.
- the ball 96 switched to the radially outward engagement position X compresses the elastic member 45 downward via the rigid sleeve 21, while Nearly simultaneously with the socket hole 3, the supported surface 2 a of the work pallet 2 contacts the supporting surface 1 a of the reference block 1.
- the plurality of balls 96 slide downward with respect to the inner peripheral surface of the socket hole 3 (or the balls 96 cause elastic deformation or plastic deformation of the inner peripheral surface of the socket hole 3).
- the plurality of balls 96 further move down the rigid sleeve 21 against the elastic member 45, and the tapered outer surface 27 of the rigid sleeve 21 is the tapered inner surface 23 of the center hole 20. To taper.
- the rigid sleeve 21 is constrained to the reference block 1 in the radial direction (horizontal direction) and the axial direction (vertical direction) via the taper engagement. Then, the work pallet 2 is positioned in the horizontal direction on the housing 15 via the rigid sleeve 21 and the plurality of balls 96 in close contact with the socket hole 3.
- the output member 48 is further driven downward with respect to the rigid sleeve 21, whereby the plurality of balls 96 are firmly attached to the socket hole 3. Then, the connecting rod 53 strongly presses the supported surface 2a of the work pallet 2 against the supporting surface 1a of the reference block 1 through the balls 96 that are in close contact with each other.
- the number of through holes 95 and balls 96 to be installed is two instead of three. Or four or more may be provided.
- Three or more tapered inner surfaces 23 of the center hole 20 may be provided instead of providing two or one in the vertical direction.
- the tapered inner surface 23 of the central hole 20 and the tapered outer surface 27 of the rigid sleeve 21 are preferably circular tapered surfaces in cross-section, but instead may be elliptical tapered surfaces or in the circumferential direction.
- a plurality of inclined grooves may be arranged on the tapered inner surface 23 and the tapered outer surface 27 at predetermined intervals in the circumferential direction, and the wedge surface may be configured by the bottom wall of the inclined grooves.
- the advancement means 45 only needs to press the rigid sleeve 21 upward (toward the distal end). Accordingly, the advancing means 45 may be mounted between the lower portion of the rigid sleeve 21 and the housing 15 instead of being mounted between the flange portion 28 of the rigid sleeve 21 and the housing 15. Good. Further, the advancing means 45 described above may be a combination of a pressure fluid such as compressed air or pressurized oil and a piston instead of or in addition to the illustrated elastic member such as rubber or a panel such as a dish panel. You can use it.
- a pressure fluid such as compressed air or pressurized oil
- a piston instead of or in addition to the illustrated elastic member such as rubber or a panel such as a dish panel. You can use it.
- Each of the clamping devices 11, 12, 13 is provided with a cleaning means so that the contact portion between the support surface la and the supported surface 2a or the socket hole 3 and the clamp tool 33 is fitted. It is preferable to clean a portion, a fitting portion between the ball 96 and the through hole 95, a fitting surface between the tapered inner surface 23 and the tapered outer surface 27, and the like with a pressure fluid such as compressed air.
- the third clamping device 13 having only the lock function may be installed in place of the illustrated two, or only one or three or more may be installed. Good.
- the third clamping device 13 may be another type of clamp, not limited to the illustrated structure.
- each of the clamping devices 11, 12, 13 may be a panel lock and hydraulic release type, or a hydraulic lock and panel release type, instead of the illustrated hydraulic double action type.
- the pressure fluid used for locking or releasing may be a gas such as compressed air in place of the illustrated pressurized oil. Further, the pressure fluid for cleaning may be a gas or liquid such as nitrogen instead of the exemplified compressed air.
- the third clamp device 13 can be omitted.
- a plurality of the first clamping devices 11 may be installed and a plurality of the second clamping devices 12 may be installed. Further, only one of both the first clamping device 11 and the second clamping device 12 may be installed.
- the direction in which the plurality of clamping devices are installed side by side may be a circumferential direction, a linear direction, or the like.
- the support surface la may be provided on the base plate 4 instead of being provided on the upper surface of the boss 72 of the housing 15.
- housing 15 and the base plate 4 may be integrally formed instead of being formed separately.
- the combination of the reference block and the movable block is not the combination of the illustrated base plate 4 and the work pallet 2, but a combination of a machine tool table and a work pallet, a combination of a work pallet and a jig base, and a jig. It may be a combination of a tool base and a workpiece, or a combination of a work jig such as a welding jig and a workpiece such as a workpiece.
- the present invention can also be applied to positioning of workpiece tools and the like of various processing machines such as laser processing machines and electric discharge machines.
- clamping device of the present invention can be used in only one set instead of being used in a plurality of sets.
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US12/084,954 US20090315239A1 (en) | 2005-11-28 | 2006-11-22 | Clamp Device and Clamping System Using Such Device |
JP2007546465A JP4896889B2 (ja) | 2005-11-28 | 2006-11-22 | クランプ装置およびその装置を利用したクランピングシステム |
EP06833131A EP1961516B1 (en) | 2005-11-28 | 2006-11-22 | Clamp device and clamping system using such device |
DE602006013349T DE602006013349D1 (de) | 2005-11-28 | 2006-11-22 | Klemmvorrichtung und solch eine vorrichtung verwendendes klemmsystem |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2005376357 | 2005-11-28 | ||
JP2005-376357 | 2005-11-28 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2007060986A1 true WO2007060986A1 (ja) | 2007-05-31 |
Family
ID=38067211
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2006/323309 WO2007060986A1 (ja) | 2005-11-28 | 2006-11-22 | クランプ装置およびその装置を利用したクランピングシステム |
Country Status (8)
Country | Link |
---|---|
US (1) | US20090315239A1 (ja) |
EP (1) | EP1961516B1 (ja) |
JP (1) | JP4896889B2 (ja) |
KR (1) | KR20080072907A (ja) |
CN (1) | CN100563920C (ja) |
AT (1) | ATE462530T1 (ja) |
DE (1) | DE602006013349D1 (ja) |
WO (1) | WO2007060986A1 (ja) |
Cited By (10)
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WO2009101765A1 (ja) * | 2008-02-15 | 2009-08-20 | Pascal Engineering Corporation | クランプ装置 |
WO2009101764A1 (ja) * | 2008-02-15 | 2009-08-20 | Pascal Engineering Corporation | クランプ装置 |
JP2010099785A (ja) * | 2008-10-24 | 2010-05-06 | Pascal Engineering Corp | ワークパレット位置決め固定機構 |
US8517360B2 (en) | 2008-04-24 | 2013-08-27 | Pascal Engineering Corporation | Clamp device |
JP2014012303A (ja) * | 2012-07-04 | 2014-01-23 | Pascal Engineering Corp | 物体位置決め固定装置 |
TWI483805B (zh) * | 2008-08-06 | 2015-05-11 | Pascal Eng Corp | Clamping device |
JP2017100271A (ja) * | 2015-11-30 | 2017-06-08 | 株式会社コスメック | クランプ装置 |
KR20180104606A (ko) * | 2016-01-27 | 2018-09-21 | 하이드로블록 에스.알.엘. | 공작 기계 상에 피가공물을 고정하는 장치 |
CN110509070A (zh) * | 2019-08-30 | 2019-11-29 | 北京智同精密传动科技有限责任公司 | 行星架偏心加工工装及其加工工艺 |
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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 |
CN101954607B (zh) * | 2010-08-30 | 2011-12-14 | 常州市第八纺织机械有限公司 | 针芯床连杆架钻夹具 |
CN102059562A (zh) * | 2010-11-15 | 2011-05-18 | 吴江市菀坪镙丝厂 | 柱体件夹具 |
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ITTV20120129A1 (it) * | 2012-07-11 | 2014-01-12 | Almerino Canuto | Dispositivo di compensazione del disassamento in sistemi di bloccaggio automatici |
CN104209891B (zh) * | 2013-05-31 | 2016-12-28 | 富泰华工业(深圳)有限公司 | 定位机构及其采用的胀紧组件 |
DE102013222089A1 (de) * | 2013-10-30 | 2015-04-30 | Trumpf Sachsen Gmbh | Kupplungsvorrichtung und Kupplungsanordnung zum Verbinden zweier Bauteile einer maschinellen Anordnung für die Werkstückbearbeitung, insbesondere für die Blechbearbeitung |
FR3017556B1 (fr) * | 2014-02-14 | 2016-09-16 | Snecma | Systeme de bridage de piece et procede d'etanchage de la virole interieure d'un redresseur basse pression de turbomachine |
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TWI609745B (zh) * | 2015-07-02 | 2018-01-01 | 嘉新精密有限公司 | 側向夾持的彈性定位塊結構 |
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CN109128894B (zh) * | 2017-06-28 | 2024-03-19 | 杨斌堂 | 管卡紧机构 |
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- 2006-11-22 US US12/084,954 patent/US20090315239A1/en not_active Abandoned
- 2006-11-22 DE DE602006013349T patent/DE602006013349D1/de active Active
- 2006-11-22 KR KR1020087013919A patent/KR20080072907A/ko not_active Application Discontinuation
- 2006-11-22 WO PCT/JP2006/323309 patent/WO2007060986A1/ja active Application Filing
- 2006-11-22 AT AT06833131T patent/ATE462530T1/de not_active IP Right Cessation
- 2006-11-22 CN CNB2006800442725A patent/CN100563920C/zh not_active Expired - Fee Related
- 2006-11-22 EP EP06833131A patent/EP1961516B1/en not_active Not-in-force
- 2006-11-22 JP JP2007546465A patent/JP4896889B2/ja not_active Expired - Fee Related
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Cited By (18)
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WO2009101764A1 (ja) * | 2008-02-15 | 2009-08-20 | Pascal Engineering Corporation | クランプ装置 |
EP2253420A4 (en) * | 2008-02-15 | 2011-07-20 | Pascal Eng Corp | CLAMP DEVICE |
US8235370B2 (en) | 2008-02-15 | 2012-08-07 | Pascal Engineering Corporation | Clamp device |
US8246029B2 (en) | 2008-02-15 | 2012-08-21 | Pascal Engineering Corporation | Clamp device |
CN101939132B (zh) * | 2008-02-15 | 2013-03-27 | 帕斯卡工程株式会社 | 夹紧装置 |
WO2009101765A1 (ja) * | 2008-02-15 | 2009-08-20 | Pascal Engineering Corporation | クランプ装置 |
KR101426827B1 (ko) | 2008-02-15 | 2014-08-05 | 파스칼 엔지니어링 가부시키가이샤 | 클램프 장치 |
US8517360B2 (en) | 2008-04-24 | 2013-08-27 | Pascal Engineering Corporation | Clamp device |
TWI483805B (zh) * | 2008-08-06 | 2015-05-11 | Pascal Eng Corp | Clamping device |
JP2010099785A (ja) * | 2008-10-24 | 2010-05-06 | Pascal Engineering Corp | ワークパレット位置決め固定機構 |
JP2014012303A (ja) * | 2012-07-04 | 2014-01-23 | Pascal Engineering Corp | 物体位置決め固定装置 |
JP2017100271A (ja) * | 2015-11-30 | 2017-06-08 | 株式会社コスメック | クランプ装置 |
KR20180104606A (ko) * | 2016-01-27 | 2018-09-21 | 하이드로블록 에스.알.엘. | 공작 기계 상에 피가공물을 고정하는 장치 |
JP2019503874A (ja) * | 2016-01-27 | 2019-02-14 | ハイドロブロック エス.アール.エル. | 工作機械上で被加工物をロックする装置 |
JP7086845B2 (ja) | 2016-01-27 | 2022-06-20 | ハイドロブロック エス.アール.エル. | 工作機械上で被加工物をロックする装置 |
KR102625563B1 (ko) | 2016-01-27 | 2024-01-15 | 하이드로블록 에스.알.엘. | 공작 기계 상에 피가공물을 고정하는 장치 |
CN110524269A (zh) * | 2019-08-20 | 2019-12-03 | 浙江吉孚汽车传动系统有限公司 | 行星架加工用夹具 |
CN110509070A (zh) * | 2019-08-30 | 2019-11-29 | 北京智同精密传动科技有限责任公司 | 行星架偏心加工工装及其加工工艺 |
Also Published As
Publication number | Publication date |
---|---|
CN101316678A (zh) | 2008-12-03 |
EP1961516A1 (en) | 2008-08-27 |
EP1961516A4 (en) | 2009-06-10 |
EP1961516B1 (en) | 2010-03-31 |
JPWO2007060986A1 (ja) | 2009-05-07 |
US20090315239A1 (en) | 2009-12-24 |
ATE462530T1 (de) | 2010-04-15 |
JP4896889B2 (ja) | 2012-03-14 |
KR20080072907A (ko) | 2008-08-07 |
DE602006013349D1 (de) | 2010-05-12 |
CN100563920C (zh) | 2009-12-02 |
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