WO2004012902A1 - クランプ装置 - Google Patents
クランプ装置 Download PDFInfo
- Publication number
- WO2004012902A1 WO2004012902A1 PCT/JP2003/008630 JP0308630W WO2004012902A1 WO 2004012902 A1 WO2004012902 A1 WO 2004012902A1 JP 0308630 W JP0308630 W JP 0308630W WO 2004012902 A1 WO2004012902 A1 WO 2004012902A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- rod
- transmission
- movable
- peripheral surface
- shuttle
- Prior art date
Links
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
-
- 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
- B23Q1/0009—Energy-transferring means or control lines for movable machine parts; Control panels or boxes; Control parts
- B23Q1/0018—Energy-transferring means or control lines for movable machine parts; Control panels or boxes; Control parts comprising hydraulic means
Definitions
- the present invention relates to a clamp device, and more particularly, to a device for strongly fixing a movable member such as a work pallet to a reference member such as a table of a machining center using a taper engagement.
- a palette is detachably fixed to the upper surface of a table of a machine tool, and is configured as follows.
- An annular plug portion is protruded upward from the table, and a paper outer peripheral surface narrowing in a tip direction is provided on an outer peripheral side of the plug portion.
- a tapered inner peripheral surface associated with the tapered outer peripheral surface is provided on the pallet.
- the rod inserted into the plug is driven upward.
- the output portion of the rod presses the pallet downward through a plurality of engagement balls, and the tapered inner peripheral surface of the pallet is engaged with the tapered outer peripheral surface of the plug portion.
- the pallet is strongly tapered to the table during clamping, it is difficult to release the single-page engagement during unclamping. Can not be separated.
- An object of the present invention is to provide a clamp device capable of easily separating a reference member such as a table and a movable member such as a pallet, and to make the clamp device compact. Disclosure of the invention
- the first invention for achieving the above object is configured as follows, for example, as shown in FIGS. 1 to 3, or FIGS. 4 and 4 or FIGS. 5A and 5B. That is, this is a clamp device for detachably fixing the movable member M to the reference member R, and the annular plug portion 21 is projected from the reference member R. On the outer peripheral side of the plug portion 21, tapered outer peripheral surfaces 28, 54 tapering toward the distal end are provided.
- the above-mentioned movable member M is provided with tapered peripheral surfaces 12 and 53 which engage with the outer peripheral surfaces 28 and 54 of the taper.
- a transmission 29 is supported at the distal end of the cylindrical hole 21a of the plug portion 21 so as to be movable in the axial direction within a predetermined range, and the transmission 29 is also located at the base end side as described above.
- the rod 31 is inserted into the cylindrical hole 21a so as to be movable in the axial direction.
- the driving means D provided on the reference member R
- the output portion 36 of the rod 31 applies the movable member M to the reference member R.
- a transmission gap G is formed between the pressing portion 31 a at the tip of the rod 31 and the pressure receiving portion 29 b of the transmission tool 29.
- the pressing portion 31a of the rod 31 is moved by the movable member M via the transmission 29. Press.
- the rod presses the movable member via the transmission so that the rod is pressed between the outer peripheral surface of the taper and the inner peripheral surface of the taper.
- the movable member can be easily removed from the reference member by forcibly releasing the tapered engagement of the movable member.
- the rod when the rod is driven by clamping, a transmission gap is formed between the pressing portion at the tip of the rod and the pressure receiving portion of the transmission device. Then, the rod abuts on the transmission, and then the rod moves the transmission toward the front end. That is, at the time of the unclamping, the transmission
- the amount of movement in the distal direction is a value obtained by subtracting the idle stroke (transmission gap) from the entire stroke of the rod in the distal direction, so that the amount of the transmission tool projecting in the distal direction is reduced. .
- the clamp device can be made compact with a shorter height.
- the opening 31 presses the movable member M via the transmission 29. It is desirable to form an engagement gap between the tapered outer peripheral surfaces 28 and 54 and the tapered inner peripheral surfaces 12 and 53.
- the inner peripheral surface of the annular shuttle member 23, which is enlarged and reduced in the diameter direction, is reciprocally movable within the predetermined range in the axial direction.
- the shuttle member 23 may be fitted with the tapered outer peripheral surface 28 provided on the outer peripheral surface thereof, and an advancing means 24 for moving the shuttle member 23 in a direction in which the tapered engagement may be tight. desirable.
- the outer peripheral surface of the annular shuttle member 23 that is enlarged and reduced in the diameter direction is reciprocally fitted within the predetermined range in the axial direction into the movable member M
- the taper inner peripheral surface 53 is provided on the inner peripheral surface of the shuttle member 23, and an advancement means 24 for moving the shuttle member 23 in the direction to make the paper engagement tighter is provided. desirable.
- the second invention for achieving the above-mentioned object is, for example, as shown in FIG. 1 to FIG. 3, or FIG. 4A and FIG. 4B, or FIG. 5A and FIG. Configured.
- a clamp device in which the movable member M is centered on the reference member R and the supported surface T of the movable member M is fixed on the support surface S of the reference member R.
- a socket hole 11 is opened in the supported surface T of the movable member M, and a positioning hole 12 and a locking hole 13 are formed in the socket hole 11 in this order from the opening end.
- An annular plug portion 21 to be inserted into the socket hole 11 is protruded from the reference member R.
- a shuttle member 23 that is diametrically enlarged and reduced is arranged between the plug portion 21 and the positioning hole 12.
- the shuttle member 23 is supported by one of the plug portion 21 and the positioning hole 12 so as to be able to reciprocate within a predetermined range in the axial direction, and the other 1 2 , 21 so that taper engagement is possible.
- the tapered surfaces 28 and 53 of the shuttle member 23 are formed so as to be tapered toward the locking holes 13 and the shuttle member 23 is moved in a direction to tighten the tapered engagement.
- a transmission device 29 is movably supported in the axial direction within a predetermined range at the distal end of the cylindrical hole 21 a of the plug portion 21, and the cylindrical hole is located at a base end side of the transmission device 29. Insert the rod 3 1 into 2 1 a movably in the axial direction.
- an engaging member 34 that is moved to a radially outward engaging position X and a radially inward disengaging position Y is disposed.
- the output portion 36 of the rod 31 causes the engagement member 34 to move to the engagement position.
- the movable member M is moved toward the reference member R by switching to X and engaging with the locking hole 13.
- a transmission gap G is formed between the pressing portion 31a at the tip of the rod 31 and the pressure receiving portion 29b of the transmission tool 29.
- the engagement member 34 When the rod 31 is unclamped in the distal direction by the driving means D, the engagement member 34 is allowed to switch to the disengagement position Y. During the unclamping drive, the pressing portion 31a of the rod 31 presses the top wall 11a of the socket hole 11 via the transmission 29.
- the movable member when the movable member is clamped to the reference member, first, the movable member is automatically guided by the guide action of the tapered surface of the shuttle member.
- the axis of the positioning hole of the movable member is precisely aligned with the axis of the above-mentioned plug portion of the reference member.
- the shuttle member moves in the axial direction against the advancing means, and the supported surface of the movable member is received by the support surface of the reference member, and the shuttle member is connected to the positioning hole and the positioning hole. Adhere to plug part. Therefore, the movable member is restrained by the plug portion via the shuttle member and also by the support surface. As a result, the movable member can be accurately and strongly positioned and fixed to the reference member.
- the rod presses the top wall of the socket hole via the transmission, thereby forcibly releasing the strong taper engagement of the shuttle member, and
- the movable member can be easily removed from the reference member.
- the rod when the rod is driven by clamping, a transmission gap is formed between the pressing portion at the tip of the rod and the pressure receiving portion of the transmission tool. Then, the rod abuts on the transmission, and then the rod moves the transmission toward the front end. That is, at the time of the unclamping, the amount of movement of the transmission tool in the distal direction is a value obtained by subtracting the idle running stroke (transmission gap) from the entire stroke of the rod in the distal direction. The amount of protrusion of the transmission in the tip direction is reduced. As a result, the clamping device can be made compact with a shorter height.
- the rod 31 presses the movable member M via the transmission tool 29 to thereby form the paper surfaces 28 and 28 of the shuttle member 23. 53, it is desirable to form a contact gap S between the support surface S and the supported surface T while forming an engagement gap.
- a contact gap is formed on the tapered surface of the shuttle member, and a contact gap is formed between the support surface and the supported surface. , The forcible release of the tapered engagement becomes more reliable, and the detachment of the movable member from the reference member becomes easier.
- an elastic body 32 that biases the transmission tool 29 toward the distal end is mounted between the rod 31 and the transmission tool 29.
- the distal end of the transmission member can be kept in contact with the movable member by the elastic body.
- the height of the device can be reduced.
- at least one of the internal space of the transmission and the internal space of the distal end of the rod can be used as the mounting space for the elastic body, so that the height of the clamp device can be further reduced.
- a cleaning fluid supply port 41 is provided in the reference member R, and a cleaning fluid ejection port 42 is provided in the transmission tool 29. It is preferable that the jet port 42 is communicated with the jet port 42 by a flow path 44 in the port 31.
- FIG. 1 to 3 show a first embodiment of a clamp device of the present invention
- FIG. 1 is a cross-sectional view in an elevation view of a state in which the movable member has been mounted on the reference member
- FIG. 2 shows a state in which the movable member has been mounted on the reference member.
- FIG. 3 shows a state in which the movable member is fixed to the reference member.
- 4A and 4B show a second embodiment of the clamping device
- Figure 4A is a partial view similar to Figure 2 above,
- Figure 4B is a partial view similar to Figure 3 above,
- 5A and 5B show a third embodiment of the clamping device
- FIG. 5A is similar to Figure 1 above,
- FIG. 5B is an enlarged view of the main part of FIG. 5A
- 6A to 6C show a first modification to a third modification of the clamp device, and are partial views similar to FIG. 3 described above.
- FIG. 1 is a cross-sectional view in an elevation view in a state where the movable member has been mounted on the reference member.
- FIG. 2 shows a state where the above-mentioned movable member is mounted on the above-mentioned reference member.
- FIG. 3 shows a state where the movable member is fixed to the reference member.
- a clamp pallet 2 as a reference member R On the upper surface of the table 1 of the machining center, a clamp pallet 2 as a reference member R is fixed.
- the work pallet 3 which is a movable member M is fixed to the clamp pallet 2 by a plurality of clamp devices 4 having a datum function. Here, only one clamp device 4 is shown. Further, on the upper surface of the work pallet 3, although not shown, a plurality of work pieces are detachable by a work clamp.
- the clamp device 4 includes a datum clamp 5 fixed to the clamp pallet 2 by a plurality of ports (not shown) and a datum ring 6 fixed to the work pallet 3 by a plurality of ports (not shown).
- the center of the datum ring 6 projects downward, and the lower surface of the projection forms a supported surface T, and a socket hole 11 is opened in the supported surface T.
- the socket hole 11 is formed in the datum ring 6 and the work pallet 3.
- a paper positioning hole (taper inner peripheral surface) 12 which is provided in order from the lower side, and a taper locking hole 13 are formed.
- the taper positioning hole 12 is formed so as to taper upward, and the taper locking hole 13 is formed so as to taper downward.
- the datum clamp 5 includes a cover block 16 fixed to the clamp pallet 2, a piston 17 hermetically inserted between the cover block 16 and the clamp pallet 2, and a piston 1 7 includes a hydraulic chamber 18 formed on the lower side, and a clamp spring 19 mounted between the biston 17 and the force par block 16.
- the clamp panel 19 is composed of a plurality of disc springs stacked in the vertical direction, but may be a compression coil panel.
- the driving means D is constituted by the piston 17, the hydraulic chamber 18 and the clamp panel 19.
- An annular plug portion 21 protrudes upward from the center of the cover block 16, and the plug portion 21 is inserted into the socket hole 11.
- the cover block 16 projects slightly upward from the lower part of the plug portion 21 in the radial direction, and a support surface S is formed by the upper surface of the annular projecting portion.
- An annular shuttle member 23 is externally fitted to the lower half of the plug part 2 1, and the shuttle member 23 is urged upward by a plurality of counterpanes 24 (advancing means) 24 and stopped together. It is received by wheel 25.
- these dish panels 24 constitute advance means.
- the annular shuttle member 23 described above has a The outer peripheral surface is formed by a taper outer surface (taper outer surface) 28, and a slit is provided on the annular wall of the shuttle member 23, or the inner peripheral surface is provided with a slit.
- a taper outer surface taper outer surface
- straight surface 27 can be enlarged and reduced in the diameter direction.
- the straight surface 27 is supported on the outer peripheral surface of the plug portion 21 so as to be movable in the axial direction.
- the tapered surface 28 is formed so as to taper upward so as to be in taper engagement with the tapered positioning hole 12.
- an annular mounting groove 26 is formed in the cover block 16 around the outer periphery of the plug portion 21. In the mounting groove 26, the flat panel 24 is inserted and the shuttle member 2 is inserted. The lower part of 3 is inserted.
- a transmission 29 is vertically movably supported within a predetermined range, and the cylindrical hole 2 is located below the transmission 29.
- the rod 31 is inserted into 1a movably in the vertical direction.
- the lower part of the rod 31 is connected to the piston 17.
- a panel housing hole 30 is formed in the transmission 29, and an extension panel (elastic body) 32 is mounted between the top wall of the panel housing hole 30 and the upper end surface of the rod 31.
- the transmission device 29 is urged upward by the extension spring 32, and the upward movement of the transmission device 29 by a predetermined amount or more is prevented by the flange 29a.
- a plurality of through holes 33 are formed at predetermined intervals in the circumferential direction at the upper portion of the plug portion 21, and each through hole 33 has an engaging pole (engaging tool) 3 4 force ⁇ radial outer force. Movably supported at one of the engagement positions X (see FIG. 3) and the radially inner disengagement position Y (see FIG. 1). The protrusion of the pole 34 is prevented by the reduced diameter portion (not shown) at the outer end of the through hole 33.
- an output surface (output portion) 36 for clamping and an escape groove 3 f are formed in a vertically connected manner so as to correspond to each of the balls 34.
- the rod 31 and the piston 17 may be formed separately and connected by bolts or the like.
- a supply port 41 for compressed air (cleaning fluid) is provided on the clamp pallet 2 and a jet port 42 is provided at an upper portion of the transmission tool 29 obliquely upward.
- the above-mentioned supply port 41 and the above-mentioned ejection port 42 are connected to the horizontal flow path 43 in the cover block 16, the vertical flow path 44 in the rod 31, and the above-mentioned spring receiving hole 30. Is communicated by The vertical flow path 44 is sealed by upper and lower O-rings 4 5 4 6. An intermediate portion of the horizontal flow path 43 communicates with the mounting groove 26.
- jet ports 42 it is preferable to provide a plurality of the jet ports 42 at predetermined intervals in the circumferential direction, but only one jet port may be provided.
- the clamp device 4 operates as follows, as shown in FIGS.
- the pressure oil is supplied to the hydraulic chamber 18 via the pressure oil supply / discharge path 48.
- the piston 17 raises the rod 31 against the clamp spring 19 by the hydraulic pressure of the hydraulic chamber 18, and the pawls 34 face the evacuation grooves 37.
- the disengagement position Y shown in the figure. Further, the shuttle member 23 is held at the raised position by the dish panel (advancing means) 24.
- the first guide hole 11 b of the socket hole 11 faces the tape of the plug portion 21. Since the guide is guided by the one guide surface 21b, the axis of the socket hole 11 substantially coincides with the axis of the plug portion 21.
- the compressed air for cleaning is supplied to the supply port 41 in the state of FIG. 1 described above, the compressed air is discharged from the jet port 42 vigorously. The discharged compressed air cleans the top surface and the peripheral surface of the socket hole 11, and is then discharged downward.
- the tapered positioning hole 12 is guided by the tapered surface 28 of the shuttle member 23, and subsequently, as shown in FIG.
- the top wall 11a abuts on the pressing portion 31a of the rod 31 via the transmission 29, and the work pallet 3 is received by the rod 31.
- the compressed air discharged from the jet port 42 passes through the gap between the top wall 11a and the upper end surface of the plug portion 21.
- Surface of the locking hole 13 an engagement gap between the taper surface 28 of the shuttle member 23 and the tape positioning hole 12, and the support surface S and the The contact gap / 3 with the supported surface T is cleaned in order, and then discharged to the outside.
- the compressed air supplied to the mounting groove 26 cleans the fitting gap between the straight surface 27 of the shuttle member 23 and the fitting gap below the taper surface 28. Is discharged outside.
- each output surface 36 of the rod 31 is in front of it. JP2003 / 008630
- Each ball 34 described above is pressed to the outward engagement position X in the radial direction, and the radial pressing force is converted into a downward force via the tapered locking hole 13, and the downward force is applied by the downward force. Lower the work pallet 3 strongly.
- the paper positioning hole 12 is strongly engaged with the tapered surface 28 of the shuttle member 23 and is aligned and moved.
- the axis of the tapered positioning hole 12 is aligned with the plug.
- the shuttle member 23 is further lowered against the shaft 21 of the portion 21 precisely against the counter panel 24, and the supported surface T is received by the support surface S.
- the work pallet 3 is restrained in the horizontal direction by the plug portion 21 via the shuttle member 23 reduced in diameter by the paper positioning hole 12 and the support surface
- the work pallet 3 can be precisely and strongly positioned and fixed to the clamp pallet 2 as a result of being restrained in the vertical direction by the S.
- the amount of movement above the transmission tool 29 is obtained by subtracting the above-mentioned idle running stroke (the transmission gap G in FIG. 3) from the entire stroke above the above-mentioned head 31. , And the amount of upward protrusion of the transmission 29 is reduced. Thereby, the height of the socket hole 11 can be reduced.
- the clamp device 4 can be made compact with a reduced overall height.
- the pan panel 24 for urging the shuttle member 23 may be a single panel panel instead of a stack of multiple panels, and may be replaced by another type of spring or rubber such as a compression coil panel. It is possible.
- FIG. 4A and 4B show a second embodiment of the present invention.
- FIG. 4A shows a state where the work pallet 3 is mounted on the clamp pallet 2 and is a partial view similar to FIG. 2 described above.
- FIG. 4B above shows a state in which the work pallet 3 is fixed to the clamp pallet 2, and is a partial view similar to FIG. 3 described above.
- the same configuration as in the first embodiment is used. Members are given the same reference numerals in principle, and only the configuration different from that of the first embodiment will be described.
- the positioning holes 12 of the socket holes 11 formed in the work pallet 3 are formed in a straight shape.
- a straight surface on the outer periphery of the shuttle member 23 is vertically movably supported by the straight positioning hole 12.
- the shuttle member 23 is urged downward by an elastic member 24 made of rubber, and the lowering of the shuttle member 23 is prevented by a retaining ring 25 fitted to the lower part of the positioning hole 12.
- the elastic member 24 may be a panel instead of rubber.
- a tapered surface (taper inner peripheral surface) 53 formed on the inner periphery of the shuttle member 23 is engaged with the tapered outer peripheral surface 54 on the outer periphery of the plug portion 21.
- Above taper surface 5 3 is formed so as to taper upward.
- FIG. 5A and 5B show a third embodiment of the present invention.
- FIG. 5A is a view similar to FIG. 1 described above.
- FIG. 5B is an enlarged view of a main part of FIG. 5A described above.
- members having the same configuration as the first embodiment are given the same reference numerals in principle, and only the configuration different from the first embodiment will be described here.
- annular piston 70 as an advancing means is provided below the shuttle member 23. Specifically, the annular piston 70 is fitted in the mounting groove 26 formed in the cover block 16 in a sealed manner, and the annular piston 70 is vertically movable. .
- a second supply port 66 is provided in the clamp pallet 2 for supplying compressed air for pressing the annular biston 70 upward.
- the second supply port 66 communicates with a lower portion of the mounting groove 26 via a second lateral flow path 67 formed in the force bar block 16.
- a pressure receiving surface 72 that receives the pressure of the compressed air supplied from the second supply port 66 is formed on the lower surface of the annular piston 70.
- the second supply port 66 is connected to unillustrated pressure control means (for example, a pressure adjusting valve) through an appropriate pipe (not shown), and controls the pressure of the compressed air acting on the pressure receiving surface 72. It is possible.
- a lifting spring 73 is mounted below the annular piston 70.
- the lift spring 73 constantly urges the shuttle member 23 upward through the annular piston 70.
- the spring of the rising panel 73 is set to be weaker than the panel force of the counter panel 24 provided in the first embodiment.
- the pressure receiving surface 72 that receives the pressure of the pressurized fluid is formed on the annular piston 70 that pushes the shuttle member 23.
- the annular piston 70 receives the pressure of the compressed air supplied to the second supply port 66 via the pressure receiving surface 72, thereby causing the shuttle member 23 to move upward (immediately). That is, a pushing force is applied to the tapered surface 28 and the positioning hole 12 in such a direction that the tapered engagement is tight.
- the advancement output of the shuttle member 23 is determined by the resilience of the counter panel 24 and cannot be changed.
- the upward advance output of the shuttle member 23 can be freely adjusted.
- the following control is possible. That is, when the clamp device is switched from the clamped state to the unclamped state, the pressurized oil in the second supply port 66 is discharged, and the advance output of the shuttle member 23 in the upward direction is reduced. By doing so, at the moment when the work pallet 3 is released from the restraint in the vertical direction due to the unclamping state, the work pallet 3 is strongly pushed upward by the shuttle member 23 and jumps up. Can be prevented. As a result, it is possible to prevent unnecessary impacts from acting on the work pallet 3 and the work placed on the work pallet 3.
- the following control is also possible. That is, when the supporting surface S and the supported surface T are separated from each other, the second supply port 66 is depressurized. Next, the work pallet 3 is lowered. Then, the positioning holes 12 lightly taper engage with the shuttle member 23 raised by the weak force of the lift spring 73 to lower the shuttle member 23. . Subsequently, the support surface S and the supported surface T come into contact with each other. Then, the compressed air is supplied to the second supply port 66 to increase the pressure, and the shuttle member 23 is pushed and advanced through the annular biston 70, and the tapered surface 28 of the shuttle member 23 is formed. And the positioner L 12 are strongly engaged with the paper.
- the work pallet 3 is restrained in the horizontal direction by the plug portion 21 via the positioning hole 12 and the shuttle member 23 reduced in diameter by the strong taper engagement.
- the provision of the rising spring 73 allows the shuttle member 23 even when compressed air is not supplied to the lower side of the annular piston 70 (when the second supply port 66 is depressurized). Can be held in the raised position. For this reason, it is possible to eliminate the gap between the upper end surface of the shuttle member 23 and the retaining ring 25. This prevents foreign matter such as cutting chips from entering between the straight surface 27 of the shuttle member 23 and the outer peripheral surface of the plug portion 21.
- the rising panel 73 can be replaced with rubber or the like. Further, the rising panel 73 can be omitted according to the mode of the clamp system.
- pressure fluid supplied / discharged from the second supply port 66 another fluid such as pressure oil can be adopted instead of the illustrated compressed air.
- FIGS. 6A to 6C show a first modification to a third modification of the clamping device, respectively, showing a state where the work pallet 3 is fixed to the clamp pallet (not shown here).
- FIG. 4 is a partial view similar to FIG. 3 described above.
- members having the same configuration as in the first embodiment are assigned the same reference numerals in principle, and only the configuration different from that of the first embodiment will be described.
- the first modified example of FIG. 6A is configured as follows.
- the lower part of the transmission 29 is inserted into the accommodation hole 60 formed in the upper part of the mouth 31.
- the pressing portion 31a is constituted by the bottom wall of the accommodation hole 60
- the pressure receiving portion 29b is constituted by the lower portion of the transmission 29.
- the second modification of FIG. 6B is a modification of the first modification of FIG. 6A described above as follows. That is, between the upper part of the plug portion 21 and the lower flange 63 of the transmission 29, a retreat panel 64 for urging the transmission 29 downward is mounted. The downward movement of the transmission 29 above a predetermined amount is prevented by the upper flange 65.
- the reference member R may be a table of a machining center or various machines in place of the illustrated clamp pallet 2.
- the movable member M may be a work piece instead of the illustrated work palette 3.
- the above-described reference member R and the movable member M may be arranged upside down, and may be connected horizontally or obliquely instead of being connected vertically as illustrated. .
- clamp device of the present invention is not limited to the use of clamping a work pallet or a work piece, and it is needless to say that the clamping device can also be used for clamping a die or an attachment.
- the clamp device is not limited to multiple sets, but can be used with only one set.
- the shuttle member 23 of the clamp device is not limited to the illustrated annular body, and may be a plurality of divided bodies arranged in an annular shape.
- the engaging member 34 of the clamp device is a collet that engages with the straight engaging hole by frictional force or plastic deformation force instead of the ball that engages with the illustrated tapered engaging hole. You may.
- the clamp device can be driven by a fluid pressure such as an oil pressure or a pneumatic pressure, instead of being driven by a panel force.
- the shuttle member 23 may be omitted.
- the paper outer peripheral surface 28 is formed integrally with the outer peripheral surface of the plug portion 21, and the above-described FIGS. 4A and 4B
- the taper inner peripheral surface 53 is formed integrally with the socket hole 11.
- tapered inner peripheral surface 53 integrally formed with the recess 11 is preferably configured to be elastically displaceable in the axial direction and the radial direction, for example, by providing a cavity.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Jigs For Machine Tools (AREA)
- Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
- Vehicle Body Suspensions (AREA)
- Lock And Its Accessories (AREA)
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/523,404 US7232121B2 (en) | 2002-08-06 | 2003-07-07 | Clamping device |
JP2004525779A JP4541144B2 (ja) | 2002-08-06 | 2003-07-07 | クランプ装置 |
DE60313991T DE60313991T2 (de) | 2002-08-06 | 2003-07-07 | Spannvorrichtung |
AU2003281813A AU2003281813A1 (en) | 2002-08-06 | 2003-07-07 | Clamp device |
EP03741253A EP1552901B1 (en) | 2002-08-06 | 2003-07-07 | Clamp device |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2002-228447 | 2002-08-06 | ||
JP2002228447 | 2002-08-06 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2004012902A1 true WO2004012902A1 (ja) | 2004-02-12 |
Family
ID=31492260
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2003/008630 WO2004012902A1 (ja) | 2002-08-06 | 2003-07-07 | クランプ装置 |
Country Status (9)
Country | Link |
---|---|
US (1) | US7232121B2 (ja) |
EP (1) | EP1552901B1 (ja) |
JP (1) | JP4541144B2 (ja) |
CN (1) | CN100577349C (ja) |
AT (1) | ATE362820T1 (ja) |
AU (1) | AU2003281813A1 (ja) |
DE (1) | DE60313991T2 (ja) |
TW (1) | TWI266671B (ja) |
WO (1) | WO2004012902A1 (ja) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
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KR20090116645A (ko) * | 2008-05-07 | 2009-11-11 | 룀 게엠베하 | 클램프헤드 |
WO2010071072A1 (ja) | 2008-12-17 | 2010-06-24 | 株式会社コスメック | 流体カプラ付きクランピングシステム |
JP2013126696A (ja) * | 2011-12-16 | 2013-06-27 | Kosmek Ltd | クランプ装置 |
WO2020166428A1 (ja) * | 2019-02-13 | 2020-08-20 | 株式会社コスメック | 工具交換装置 |
Families Citing this family (24)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2004223702A (ja) * | 2002-11-29 | 2004-08-12 | Kosmek Ltd | 位置決め装置 |
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- 2003-07-07 US US10/523,404 patent/US7232121B2/en not_active Expired - Lifetime
- 2003-07-07 JP JP2004525779A patent/JP4541144B2/ja not_active Expired - Fee Related
- 2003-07-07 EP EP03741253A patent/EP1552901B1/en not_active Expired - Lifetime
- 2003-07-07 AT AT03741253T patent/ATE362820T1/de not_active IP Right Cessation
- 2003-07-07 WO PCT/JP2003/008630 patent/WO2004012902A1/ja active IP Right Grant
- 2003-07-07 CN CN03818733A patent/CN100577349C/zh not_active Expired - Lifetime
- 2003-07-07 AU AU2003281813A patent/AU2003281813A1/en not_active Abandoned
- 2003-07-07 DE DE60313991T patent/DE60313991T2/de not_active Expired - Lifetime
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KR20090116645A (ko) * | 2008-05-07 | 2009-11-11 | 룀 게엠베하 | 클램프헤드 |
KR101597824B1 (ko) | 2008-05-07 | 2016-02-25 | 룀 게엠베하 | 클램프헤드 |
WO2010071072A1 (ja) | 2008-12-17 | 2010-06-24 | 株式会社コスメック | 流体カプラ付きクランピングシステム |
JP2013126696A (ja) * | 2011-12-16 | 2013-06-27 | Kosmek Ltd | クランプ装置 |
WO2020166428A1 (ja) * | 2019-02-13 | 2020-08-20 | 株式会社コスメック | 工具交換装置 |
JP2020131305A (ja) * | 2019-02-13 | 2020-08-31 | 株式会社コスメック | 工具交換装置 |
JP7127836B2 (ja) | 2019-02-13 | 2022-08-30 | 株式会社コスメック | 工具交換装置 |
Also Published As
Publication number | Publication date |
---|---|
AU2003281813A1 (en) | 2004-02-23 |
EP1552901B1 (en) | 2007-05-23 |
US20060055099A1 (en) | 2006-03-16 |
JP4541144B2 (ja) | 2010-09-08 |
EP1552901A1 (en) | 2005-07-13 |
ATE362820T1 (de) | 2007-06-15 |
EP1552901A4 (en) | 2005-09-28 |
JPWO2004012902A1 (ja) | 2006-09-21 |
CN100577349C (zh) | 2010-01-06 |
TWI266671B (en) | 2006-11-21 |
DE60313991D1 (de) | 2007-07-05 |
US7232121B2 (en) | 2007-06-19 |
DE60313991T2 (de) | 2008-01-24 |
CN1675026A (zh) | 2005-09-28 |
TW200402345A (en) | 2004-02-16 |
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