CN112170878A - Compensation type finger-pressing chuck - Google Patents
Compensation type finger-pressing chuck Download PDFInfo
- Publication number
- CN112170878A CN112170878A CN202010992327.7A CN202010992327A CN112170878A CN 112170878 A CN112170878 A CN 112170878A CN 202010992327 A CN202010992327 A CN 202010992327A CN 112170878 A CN112170878 A CN 112170878A
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- pull rod
- base
- driving
- periphery
- disc
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B31/00—Chucks; Expansion mandrels; Adaptations thereof for remote control
- B23B31/02—Chucks
-
- 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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gripping On Spindles (AREA)
Abstract
The application relates to a compensation type finger-pressing chuck, which comprises a base, a pull rod and a clamping jaw. The base is integrally cylindrical; the pull rod is parallel to the axis of the base, the pull rod is arranged in the base in a sliding and penetrating mode along the axial direction of the pull rod, and the pull rod can rotate around the axis of the pull rod; one end of the pull rod extends out of the base, the clamping jaw is fixedly connected to the end portion, extending out of the base, of the pull rod, and one end of the clamping jaw protrudes out of the periphery of the pull rod along the radial direction of the pull rod. When this application had centre gripping disc class work piece, jack catch cooperation base presss from both sides tightly in disc class work piece axial terminal surface, avoids the radial extrusion work piece of following disc class work piece to reduce the effect of the deformation of disc class work piece.
Description
Technical Field
The application relates to the field of clamps, especially, relate to a compensation type finger-pressure formula chuck.
Background
In machining, the chuck is used widely, and a workpiece is held by the chuck.
The chuck usually includes the base and three jack catchs of locating on the base, and three jack catchs are along the circumference align to grid of base, and every jack catch all follows the radial slip of base, and three jack catch is close to the axis of base in step, and the jack catch supports the periphery of tight work piece, and then realizes pressing from both sides tight work piece.
In view of the above-described related art, the inventors have considered that, in a disc-like workpiece, since the workpiece has a small thickness in the axial direction, the workpiece is likely to be deformed when the outer periphery of the workpiece is clamped by the jaws.
Disclosure of Invention
In order to reduce the deformation of disc type work pieces, the application provides a compensation type finger pressing type chuck.
The application provides a compensation type finger-pressure chuck adopts following technical scheme:
a compensating finger chuck comprising:
a base;
the pull rod is connected to the base, the pull rod is parallel to the axis of the base, one end of the pull rod extends to one axial side of the base, the pull rod rotates around the axis of the pull rod and slides along the axis of the pull rod, and the pull rod is provided with a plurality of pull rods which are arranged around the base at intervals in the circumferential direction;
the clamping jaws are arranged in a plurality of numbers, one clamping jaw is fixedly connected to one end of one pull rod and is positioned on one axial side of the base, one end of the clamping jaw extends in the direction perpendicular to the axis of the pull rod, the end faces, facing the base, of the clamping jaws are abutting faces, and the abutting faces are used for abutting against workpieces; and
and the driving mechanism is arranged on the base, is connected to the other end of the pull rod and is used for driving the pull rod to act.
By adopting the technical scheme, when a disc-type workpiece is clamped, the workpiece is placed on the base, the driving mechanism acts to enable the pull rod to rotate, so that one end of the clamping jaw extending along the direction vertical to the axial line of the pull rod rotates to one side of the axial direction of the workpiece and is opposite to the workpiece; the pull rod moves along the axial direction of the pull rod, so that the clamping jaw is close to the base and tightly abuts against the workpiece; the clamping jaws are matched with the base and clamped on the axial end face of the disc type workpiece, so that the workpiece is prevented from being extruded along the radial direction of the disc type workpiece, and the deformation of the disc type workpiece is reduced.
Optionally, the outer periphery of the pull rod is provided with a guide groove, and the guide groove extends spirally around the axis of the pull rod; the base is fixedly connected with a guide pin, the guide pin extends along the radial direction of the pull rod, one end of the guide pin extends into the guide groove, and the periphery of the guide pin is in sliding abutting joint with the inner wall of the guide groove; the driving mechanism is used for driving the pull rod to axially reciprocate along the pull rod.
Through adopting above-mentioned technical scheme, actuating mechanism moves for the pull rod is along self axial reciprocating motion, and in this process, the guide way is mutually supported with the uide pin, realizes that the drive pull rod rotates around self axis.
Optionally, the drive mechanism comprises:
the driving rod is parallel to the axis of the base and moves in a reciprocating mode along the axial direction;
the driving disc is coaxially sleeved on the periphery of one end of the driving rod; and
the connecting piece is arranged on the driving disc, a plurality of connecting pieces are arranged on each connecting piece, and one connecting piece is used for being fixedly connected to one end, far away from the clamping jaw, of one pull rod.
Through adopting above-mentioned technical scheme, utilize actuating lever, driving-disc and connecting piece to drive a plurality of pull rods synchronous motion in step, and then make a plurality of jack catchs press from both sides tight work piece in step.
Optionally, a pull ring is coaxially arranged on the periphery of the driving rod, one end of the pull ring, which is far away from the jaw, is a spherical surface, and the spherical center of the spherical surface is overlapped with the axis of the pull ring; a distance exists between the inner periphery of the driving disc and the outer periphery of the driving rod, a matching surface is arranged on the inner periphery of one end, close to the clamping jaws, of the driving disc, and the matching surface is in sliding abutting joint with the spherical surface of the pull ring.
Through adopting above-mentioned technical scheme, disc class work piece axial tip is not the locating surface, and this terminal surface probably has the state of slope promptly, and at this moment, the sphere and the fitting surface of pull ring are mutually supported, and when the work piece was kept away from to the actuating lever, the slope of driving-disc class work piece axial terminal surface can automatic compensation, and until driving-disc class work piece axial terminal surface is parallel, at this moment, a plurality of jack catchs all support the axial terminal surface of disc class work piece tightly, accomplish the centre gripping of work piece.
Optionally, a reset ring is coaxially arranged on the periphery of the driving rod, the reset ring is located on one side, away from the pull ring, of the driving disc, and a gap is formed between the reset ring and the driving disc; one end of the reset ring, which faces the driving disc, is provided with a reset spring, one end of the reset spring abuts against the reset ring, and one end of the reset spring abuts against the driving disc; the return spring extends and retracts along the axial direction of the driving rod, and the matching surface is enabled to abut against the spherical surface of the pull ring.
Through adopting above-mentioned technical scheme, the actuating lever is to being close to the work piece direction removal, and at this moment, under reset spring's effect, the driving-disc swing is until perpendicular to actuating lever, and simultaneously, reset spring promotes the driving-disc and is close to the work piece, and then makes the jack catch loosen the work piece.
Optionally, a mounting hole for a pull rod to penetrate through is formed in the driving disc, and one end, far away from the clamping jaw, of the pull rod extends out of the mounting hole; the connecting piece is coaxially sleeved on the periphery of one end, extending out of the mounting hole, of the pull rod, the connecting piece is arranged to be a ball head towards one end of the clamping jaw, the center of the ball head is overlapped with the axis of the connecting piece, a distance exists between the inner periphery of the mounting hole and the periphery of the pull rod, a butt surface is arranged on the inner periphery of one end, far away from the clamping jaw, of the mounting hole, and the butt surface abuts against the ball head of the connecting piece in a sliding.
Through adopting above-mentioned technical scheme, realize the articulated connection between connecting piece and the driving-disc, and then realize when the driving-disc inclines, the pull rod keeps being on a parallel with the axis of base to guarantee that the jack catch is close to and supports the terminal surface of tight work piece along the axial of work piece.
Optionally, a step is arranged on the periphery of the pull rod, the step is located at one end, facing the jaw, of the driving disc, the step is used for abutting against one end, facing the jaw, of the driving disc, and a space exists between the step and the driving disc.
Through adopting above-mentioned technical scheme, the driving-disc removes to being close to the work piece direction along with the actuating lever, and the terminal surface butt of driving-disc to the step, and then the drive pull rod removes for the jack catch breaks away from the work piece.
Optionally, a slide way is arranged on the base, the slide way extends along the axial direction of the base, the pull rod is embedded in the slide way in a sliding manner, and the outer periphery of the pull rod is in sliding abutting joint with the inner periphery of the slide way; an oil storage tank is further arranged on the inner wall of the slide way, and lubricating grease is stored in the oil storage tank.
By adopting the technical scheme, lubricating grease permeates between the outer periphery of the pull rod and the inner periphery of the slide way, so that lubrication is realized.
Optionally, when the pull rod moves back and forth along the slide way, the guide groove is communicated to the oil storage groove.
Through adopting above-mentioned technical scheme, partial grease gets into in the guide way to along with the pull rod removes together, afterwards, the grease in the guide way adheres to the periphery to the uide pin, and then realizes the lubrication between uide pin periphery and the guide way inner wall.
Optionally, the base is detachably connected with a positioning piece, a positioning groove is formed in the end portion, deviating from the base, of the positioning piece, and the positioning groove is matched with the workpiece.
By adopting the technical scheme, the positioning groove is matched with the workpiece so as to realize radial positioning of the workpiece; the positioning piece is matched with the clamping jaw to realize axial positioning and circumferential positioning of the workpiece, so that the workpiece is clamped and positioned.
In summary, the present application includes at least one of the following beneficial technical effects:
1. when clamping the disc type workpiece, the clamping jaws are matched with the base and clamped on the axial end face of the disc type workpiece, so that the workpiece is prevented from being extruded along the radial direction of the disc type workpiece, and the deformation of the disc type workpiece is reduced;
2. the axial end part of the disc type workpiece is not a positioning surface, namely the end surface possibly has an inclined state, at the moment, the driving mechanism can automatically compensate the inclination of the axial end surface of the disc type workpiece, so that the plurality of clamping jaws are all abutted against the axial end surface of the disc type workpiece, and the workpiece is clamped.
Drawings
Fig. 1 is a schematic structural diagram of a disc-like workpiece according to a first embodiment.
Fig. 2 is a schematic view of an overall structure of the compensation type finger chuck according to the first embodiment.
Fig. 3 is an exploded view of the connection structure between the base, the pull rod and the claw in the first embodiment.
Fig. 4 is an exploded view of the compensation type finger chuck according to the first embodiment.
Fig. 5 is an exploded view of the connection structure between the driving rod and the driving disk in the first embodiment.
Fig. 6 is a schematic view of a connection structure between the driving rod and the driving disk in the first embodiment.
Fig. 7 is a schematic view of a connection structure between the driving disc and the pull rod according to the first embodiment.
Fig. 8 is a schematic view of a connection structure among the pull rod, the mounting block and the claw in the first embodiment.
Fig. 9 is a schematic structural diagram of a disc-like workpiece according to the second embodiment.
Fig. 10 is a schematic view of the overall structure of the compensation type finger chuck according to the second embodiment.
Description of reference numerals: 01. a tray body; 02. a shaft body; 03. a bump; 1. a base; 11. a base body; 111. a pin hole; 12. mounting blocks; 121. an oil storage tank; 122. a seal ring; 13. a slideway; 14. a guide pin; 15. a base plate; 16. a mounting cavity; 2. a pull rod; 21. a guide groove; 22. an avoidance groove; 23. a step; 24. a limiting groove; 3. a claw; 31. a spacing pin; 4. a positioning member; 41. positioning a groove; 5. a drive mechanism; 51. a drive rod; 511. a pull ring; 512. a sleeving section; 513. a threaded segment; 52. a drive disc; 521. a mating surface; 522. caulking grooves; 523. mounting holes; 524. an abutting surface; 53. a reset ring; 531. a limiting stud; 54. a return spring; 55. a butting sleeve; 56. a connecting member; 561. and a limiting screw.
Detailed Description
The present application is described in further detail below with reference to figures 1-10.
The embodiment of the application discloses compensation type finger-pressure chuck, when centre gripping work piece, reduces the deformation of disk body.
The first embodiment is as follows:
referring to fig. 1, the disc-like workpiece includes a disc body 01 and a shaft body 02.
Referring to fig. 2, the compensation type finger chuck includes a base 1, a pull rod 2, and jaws 3. The base 1 is cylindrical as a whole; the three pull rods 2 are parallel to the axis of the base 1 and are arranged at intervals along the circumferential direction of the base 1, the pull rods 2 are slidably arranged in the base 1 along the axial direction of the pull rods, and the pull rods 2 can rotate around the axis of the pull rods; one end of the pull rod 2 extends out of the base 1, the number of the clamping jaws 3 is three, one clamping jaw 3 is fixedly connected to the end portion of one pull rod 2 extending out of the base 1, and one end of each clamping jaw 3 protrudes out of the periphery of the pull rod 2 along the radial direction of the pull rod 2.
Referring to fig. 1, 2, still be equipped with setting element 4 on the base 1, and setting element 4 is located between three pull rod 2, in operation, the work piece is placed and is gone up with setting element 4, and make disk body 01 deviate from the terminal surface butt setting element 4's of axis body 02 terminal surface, pull rod 2 rotates around self axis, make jack catch 3 rotate to just to base 1, and simultaneously, pull rod 2 is along self axial displacement, make jack catch 3 be close to disk body 01, and cooperate setting element 4 to realize pressing from both sides the axial both ends face of tight disk body 01, accomplish the centre gripping of work piece.
Referring to fig. 3, the base 1 includes a housing 11 and a mounting block 12. Three mounting blocks 12 are arranged, and any one mounting block 12 is fixedly connected to the end face of the base body 11 through four bolts; the base 1 is also internally provided with a slideway 13, the slideway 13 extends along the axial direction of the base body 11, penetrates through the base body 11 and is fast to install, and the pull rod 2 is embedded in the slideway 13 in a sliding way.
Referring to fig. 3, the pull rod 2 is further provided at the outer circumference thereof with a guide groove 21 and an escape groove 22. The guide groove 21 is spiral around the axis of the pull rod 2, and the avoiding groove 22 is positioned on one side of the guide groove 21 departing from the seat body 11; the avoiding groove 22 extends along the axial direction of the pull rod 2 and is communicated with the guide groove 21, and the inner wall of the guide groove 21 and the inner wall of the avoiding groove 22 are in smooth transition.
Referring to fig. 3, three pin holes 111 are further formed in the outer periphery of the seat body 11 at intervals, and one pin hole 111 extends in the radial direction of the seat body 11 and is communicated with one slide rail 13; the guide pin 14 is connected in the pin hole 111 through threads, one end of the guide pin 14 extends into the slide way 13, threads are arranged on the periphery of one end, away from the axis of the seat body 11, of the guide pin 14, the periphery of one end, extending into the slide way 13, of the guide pin 14 is smooth, and the smooth end of the guide pin 14 is embedded into the guide groove 21 and the avoiding groove 22 in a sliding mode.
Referring to fig. 3, when the drawbar 2 moves in the slide channel 13 in its axial direction, the guide pin 14 is restricted by the pin hole 111 and remains stationary, and the inner wall of the guide groove 21 slides against the outer periphery of the guide pin 14, thereby rotating the drawbar 2.
Referring to fig. 4, the base 1 further includes a bottom plate 15. One end of the seat body 11 departing from the mounting block 12 is provided with a mounting cavity 16, and the mounting cavity 16 is communicated with the slideway 13; the bottom plate 15 is fixedly connected to the base body 11 by six bolts and covers the mounting cavity 16.
Referring to fig. 4, a driving mechanism 5 is arranged in the mounting cavity 16, the driving mechanism 5 is used for driving the three pull rods 2 to move synchronously along the axial direction of the base body 11, and when the end surface of the workpiece inclines relative to the axis of the base body 11, the driving mechanism 5 automatically compensates the inclination of the end surface of the workpiece, so that the three jaws 3 simultaneously abut against the end surface of the workpiece.
Referring to fig. 4 and 5, the drive mechanism 5 includes a drive lever 51 and a drive disk 52. The driving rod 51 is arranged coaxially with the seat body 11, the driving rod 51 penetrates through the bottom plate 15 in a direction away from the mounting block 12, and one end of the driving rod 51, which extends out of the bottom plate 15, is used for connecting a piston rod of an air cylinder or a piston rod of a hydraulic cylinder; the driving disk 52 is coaxially sleeved on the driving rod 51 and is used for connecting the three pull rods 2.
Referring to fig. 5 and 6, the driving rod 51 has a pull ring 511, a socket section 512 and a threaded section 513 sequentially arranged along its axial direction on its outer circumference. The driving disk 52 is sleeved on the periphery of the sleeving section 512; one end of the pull ring 511 facing the drive disc 52 is a spherical surface, the spherical center of the spherical surface coincides with the axis of the drive rod 51, a matching surface 521 is arranged at one end of the inner periphery of the drive disc 52, the matching surface 521 is in sliding contact with the spherical surface of the pull ring 511, in the embodiment, the matching surface 521 is a conical surface, and a distance exists between the inner periphery of the drive and the outer periphery of the socket joint section 512, so that the axis of the drive disc 52 and the axis of the drive rod 51 can swing within a certain angle.
Referring to fig. 5 and 6, the driving mechanism 5 further includes a reset ring 53, the reset ring 53 is sleeved on the periphery of the threaded section 513, the reset ring 53 and the threaded section 513 are connected in a threaded fit manner, a limit stud 531 is arranged on the reset ring 53 in a penetrating manner, the limit stud 531 radially penetrates through the reset ring 53 along the reset ring 53, the end portion of the limit stud 531 abuts against the periphery of the threaded section 513, and the reset ring 53 is fixedly connected with the driving rod 51. And when the mating surface 521 abuts against the spherical surface of the pull ring 511, there is a space between the reset ring 53 and the drive plate 52.
Referring to fig. 5 and 6, a return spring 54 and a butting sleeve 55 are further disposed between the driving disk 52 and the return ring 53, an embedding groove 522 is disposed at an interval along a circumferential direction of one end of the driving disk 52 facing the return ring 53, one end of the return spring 54 is embedded in the embedding groove 522, the butting sleeve 55 is sleeved on an outer periphery of the other end of the return spring 54, and the butting sleeve 55 is slidably embedded in the embedding groove 522. One end of the abutting sleeve 55 extends out of the insertion groove 522 and abuts against the return ring 53.
Referring to fig. 6 and 7, the driving disc 52 is further provided with a mounting hole 523, the mounting hole 523 is used for the pull rod 2 to penetrate through, the driving mechanism 5 further includes a connecting member 56, the connecting member 56 is located at one end of the driving disc 52 facing the reset ring 53, the connecting member 56 is used for being sleeved on the periphery of one end of the pull rod 2 extending out of the mounting hole 523, a limit screw 561 is further penetrated through the connecting member 56, the limit screw 561 penetrates through the connecting member 56 along the radial direction of the connecting member 56, and the end of the limit screw 561 abuts against the periphery of the pull rod 2.
Referring to fig. 7, a ball is disposed at one end of the connecting piece 56 facing the driving plate 52, a center of the ball coincides with an axis of the connecting piece 56, and an abutting surface 524 is disposed at one end of an inner circumference of the mounting hole 523.
Referring to fig. 7, the outer periphery of the pull rod 2 is provided with a step 23, the step 23 is located on the side of the driving disc 52 facing away from the connecting piece 56, the step 23 is used for abutting against the end face of the driving disc 52, and a space exists between the step 23 and the driving disc 52.
Referring to fig. 7 and 8, the bolt penetrates through the clamping jaw 3 and is inserted into one end, away from the connecting piece 56, of the pull rod 2, the limiting groove 24 is formed in the periphery of one end, away from the connecting piece 56, of the pull rod 2, the limiting groove 24 extends along the axial direction of the pull rod 2, the limiting pin 31 penetrates through the clamping jaw 3, one end of the limiting pin 31 is used for being embedded into the limiting groove 24, and circumferential fixing between the clamping jaw 3 and the pull rod 2 is achieved.
Referring to fig. 8, an oil storage groove 121 is formed in the mounting block 12 and located on the inner wall of the slide channel 13, the oil storage groove 121 is annular and is coaxially disposed on the slide channel 13, the oil storage groove 121 is used for storing lubricating grease, and when the pull rod 2 reciprocates in the slide channel 13, the lubricating grease penetrates between the outer periphery of the pull rod 2 and the inner periphery of the slide channel 13 to achieve lubrication. Meanwhile, when the pull rod 2 reciprocates along the slide channel 13, the guide groove 21 is communicated to the oil storage groove 121, and part of grease enters the guide groove 21 and adheres to the outer periphery of the guide pin 14, thereby achieving lubrication between the outer periphery of the guide pin 14 and the inner wall of the guide groove 21.
Referring to fig. 8, a sealing ring 122 is embedded in one end of the mounting block 12 facing the jaw 3, and the inner circumference of the sealing ring 122 is slidably abutted against the outer circumference of the drawbar 2 to reduce leakage of grease.
The implementation principle of the compensation type finger-pressure chuck of the first embodiment is as follows: when a disc-type workpiece is clamped, the workpiece is placed on the base 1, the driving mechanism 5 acts to enable the pull rod 2 to rotate, and the clamping jaw 3 rotates to be opposite to the workpiece; the pull rod 2 moves along the self axial direction, so that the clamping jaw 3 is close to the base 1 and tightly abuts against a workpiece; the clamping jaw 3 is matched with the positioning piece 4 and clamped on the axial end face of the disc body 01, so that the workpiece is prevented from being extruded along the radial direction of the disc body 01, and the deformation of the workpiece is reduced;
meanwhile, usually, the axial end of the disc body 01 is not a positioning surface, that is, the end surface may be inclined, at this time, the spherical surface of the pull ring 511 is matched with the matching surface 521, the ball head of the connecting member 56 is matched with the abutting surface 524, and in the process that the claws 3 abut against the end surface of the disc body 01, the driving disc 52 can automatically compensate the inclination of the axial end surface of the disc-like workpiece until the driving disc 52 is parallel to the axial end surface of the disc-like workpiece, and at this time, the claws 3 all abut against the axial end surface of the disc-like workpiece, so as to complete the clamping of the.
Example two:
referring to fig. 9, the disc-like workpiece includes a protrusion 03, a disc body 01, and a shaft body 02, which are sequentially arranged along an axial direction thereof.
The difference between the present embodiment and the first embodiment is:
referring to fig. 9 and 10, three bolts penetrate through the positioning member 4 and are connected to the seat body 11, so as to realize the detachable connection between the positioning member 4 and the seat body 11. One end of the positioning element 4 deviating from the seat body 11 is provided with a positioning groove 41, the positioning groove 41 is adapted to the convex block 03, namely, the circumferential side wall of the positioning groove 41 is fitted to the periphery of the convex block 03, and when the disk body 01 deviates from the end surface of the shaft body 02 and abuts against the end surface of the positioning element 4, a gap exists between the bottom of the positioning groove 41 and the convex block 03.
The second embodiment is a compensation type finger chuck, and the implementation principle is as follows: the positioning groove 41 is utilized to complete radial positioning of the workpiece, and the positioning piece 4 is matched with the clamping jaw 3 to realize axial positioning and circumferential positioning of the workpiece, so that the workpiece is clamped and positioned.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (10)
1. A compensating finger chuck, comprising:
a base (1);
the pull rod (2) is connected to the base (1), the pull rod (2) is parallel to the axis of the base (1), one end of the pull rod (2) extends to one axial side of the base (1), the pull rod (2) rotates around the axis of the pull rod and slides along the axis of the pull rod, and the pull rod (2) is provided with a plurality of pull rods which are arranged around the base (1) at intervals in the circumferential direction;
the clamping jaws (3) are arranged in a plurality of numbers, one clamping jaw (3) is fixedly connected to one end of one pull rod (2) and is positioned on one axial side of the base (1), one end of the clamping jaw (3) extends along the direction vertical to the axis of the pull rod (2), the end face, facing the base (1), of the clamping jaw (3) is an abutting face (524), and the abutting face (524) is used for abutting against a workpiece; and
and the driving mechanism (5) is arranged on the base (1), is connected to the other end of the pull rod (2) and is used for driving the pull rod (2) to act.
2. The compensating finger chuck as set forth in claim 1, wherein: the periphery of the pull rod (2) is provided with a guide groove (21), and the guide groove (21) extends spirally around the axis of the pull rod (2); a guide pin (14) is fixedly connected to the base (1), the guide pin (14) extends along the radial direction of the pull rod (2), one end of the guide pin (14) extends into the guide groove (21), and the periphery of the guide pin (14) is in sliding abutting joint with the inner wall of the guide groove (21); the driving mechanism (5) is used for driving the pull rod (2) to reciprocate along the axial direction of the pull rod.
3. The compensating finger chuck as set forth in claim 2, wherein: the drive mechanism (5) comprises:
a driving rod (51) which is parallel to the axis of the base (1) and moves back and forth along the axial direction;
the driving disc (52) is coaxially sleeved on the periphery of one end of the driving rod (51); and
the connecting piece (56) is arranged on the driving disc (52), the connecting piece (56) is provided with a plurality of connecting pieces, and one connecting piece (56) is used for being fixedly connected to one end, far away from the clamping jaws (3), of one pull rod (2).
4. The compensating finger chuck according to claim 3, wherein: the periphery of the driving rod (51) is coaxially provided with a pull ring (511), one end of the pull ring (511) departing from the claw (3) is spherical, and the spherical center of the spherical surface is superposed with the axis of the pull ring (511); a distance exists between the inner periphery of the driving disc (52) and the outer periphery of the driving rod (51), a matching surface (521) is arranged on the inner periphery of one end, close to the clamping jaw (3), of the driving disc (52), and the matching surface (521) is in sliding abutting joint with the spherical surface of the pull ring (511).
5. The compensating finger chuck according to claim 4, wherein: the periphery of the driving rod (51) is also coaxially provided with a reset ring (53), the reset ring (53) is positioned on one side, away from the pull ring (511), of the driving disk (52), and a space exists between the reset ring (53) and the driving disk (52); one end of the reset ring (53) facing the driving disc (52) is provided with a reset spring (54), one end of the reset spring (54) abuts against the reset ring (53), and one end of the reset spring (54) abuts against the driving disc (52); the return spring (54) extends and retracts along the axial direction of the driving rod (51) and enables the matching surface (521) to be abutted against the spherical surface of the pull ring (511).
6. The compensating finger chuck according to claim 4, wherein: the driving disc (52) is provided with a mounting hole (523) for the pull rod (2) to penetrate through, and one end of the pull rod (2) far away from the clamping jaw (3) extends out of the mounting hole (523); connecting piece (56) coaxial cup joints in pull rod (2) and stretches out the one end periphery of mounting hole (523), connecting piece (56) are established to the bulb towards jack catch (3) one end, and the axis coincidence of the centre of sphere of bulb and connecting piece (56), there is the interval between the inner periphery of mounting hole (523) and the periphery of pull rod (2), just the one end inner periphery that jack catch (3) were kept away from in mounting hole (523) is equipped with butt surface (524), butt surface (524) slip butt connecting piece (56) bulb.
7. The compensating finger chuck according to claim 5, wherein: the periphery of pull rod (2) is equipped with step (23), step (23) are located driving-disc (52) towards the one end of jack catch (3), step (23) are used for butt driving-disc (52) towards the one end of jack catch (3), just there is the interval between step (23) and driving-disc (52).
8. The compensating finger chuck as set forth in claim 2, wherein: the base (1) is provided with a slide way (13), the slide way (13) extends along the axial direction of the base (1), the pull rod (2) is embedded in the slide way (13) in a sliding manner, and the outer periphery of the pull rod (2) is in sliding abutting joint with the inner periphery of the slide way (13); an oil storage tank (121) is further arranged on the inner wall of the slide way (13), and lubricating grease is stored in the oil storage tank (121).
9. The compensating finger chuck according to claim 8, wherein: when the pull rod (2) moves back and forth along the slide way (13), the guide groove (21) is communicated to the oil storage groove (121).
10. The compensating finger chuck as set forth in claim 1, wherein: the base (1) is detachably connected with a positioning piece (4), the end part of the positioning piece (4) departing from the base (1) is provided with a positioning groove (41), and the positioning groove (41) is matched with a workpiece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010992327.7A CN112170878B (en) | 2020-09-21 | 2020-09-21 | Compensation type finger-pressing chuck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010992327.7A CN112170878B (en) | 2020-09-21 | 2020-09-21 | Compensation type finger-pressing chuck |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112170878A true CN112170878A (en) | 2021-01-05 |
| CN112170878B CN112170878B (en) | 2021-08-27 |
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| CN202010992327.7A Active CN112170878B (en) | 2020-09-21 | 2020-09-21 | Compensation type finger-pressing chuck |
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Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3233914A1 (en) * | 1982-09-13 | 1984-03-15 | Oerlikon-Boehringer GmbH, 7320 Göppingen | LATHE WITH INTEGRATED CHUCK |
| IT1176174B (en) * | 1984-05-22 | 1987-08-18 | Bilz Otto Werkzeug | Quick-change chuck for tap drill |
| CN2154143Y (en) * | 1993-04-08 | 1994-01-26 | 张凤鸣 | Centre floating adapter socket |
| CN103624282A (en) * | 2013-12-09 | 2014-03-12 | 浙江陀曼精密机械有限公司 | Automatic aligning and clamping mechanism for three-jaw chuck |
| CN104772493A (en) * | 2015-03-24 | 2015-07-15 | 浙江大学 | External centrifugal force compensating mechanism for chuck |
| CN205341973U (en) * | 2016-02-18 | 2016-06-29 | 浙江春晖空调压缩机有限公司 | Processing of vehicle air conditioner compressor cylinder body is with drawing formula chuck to one side |
| CN205763956U (en) * | 2016-05-19 | 2016-12-07 | 宁波汇众汽车车桥制造有限公司 | Modified model turning clamp |
| CN206981785U (en) * | 2017-06-21 | 2018-02-09 | 雄名精机(上海)有限公司 | End-toothed disc Special Fixture for Machining |
| CN207823987U (en) * | 2018-01-04 | 2018-09-07 | 华南理工大学 | A kind of inside and outside clamping device when thin-wall tubular part rotation processing |
| CN209035490U (en) * | 2018-11-26 | 2019-06-28 | 重庆机床(集团)有限责任公司 | A kind of Manual quick clamping device |
| CN209998389U (en) * | 2019-01-22 | 2020-01-31 | 倍得福机械科技(常州)股份有限公司 | anti-deflection back-pull type hydraulic chuck |
| CN210359332U (en) * | 2019-06-12 | 2020-04-21 | 昆山奥玛泰机电设备有限公司 | Back-pull type chuck clamp of clutch flange |
| CN210548196U (en) * | 2019-09-09 | 2020-05-19 | 桂林福达齿轮有限公司 | Novel engine gear ring finish turning inner hole clamp |
| CN111185610A (en) * | 2020-01-14 | 2020-05-22 | 李克春 | Self-locking mechanical clamp |
| CN211464867U (en) * | 2019-11-29 | 2020-09-11 | 天津市增益达精锻齿轮科技有限公司 | Tool for integrally and finely turning spherical surface and inner hole of bevel gear by three claws |
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2020
- 2020-09-21 CN CN202010992327.7A patent/CN112170878B/en active Active
Patent Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3233914A1 (en) * | 1982-09-13 | 1984-03-15 | Oerlikon-Boehringer GmbH, 7320 Göppingen | LATHE WITH INTEGRATED CHUCK |
| IT1176174B (en) * | 1984-05-22 | 1987-08-18 | Bilz Otto Werkzeug | Quick-change chuck for tap drill |
| CN2154143Y (en) * | 1993-04-08 | 1994-01-26 | 张凤鸣 | Centre floating adapter socket |
| CN103624282A (en) * | 2013-12-09 | 2014-03-12 | 浙江陀曼精密机械有限公司 | Automatic aligning and clamping mechanism for three-jaw chuck |
| CN104772493A (en) * | 2015-03-24 | 2015-07-15 | 浙江大学 | External centrifugal force compensating mechanism for chuck |
| CN205341973U (en) * | 2016-02-18 | 2016-06-29 | 浙江春晖空调压缩机有限公司 | Processing of vehicle air conditioner compressor cylinder body is with drawing formula chuck to one side |
| CN205763956U (en) * | 2016-05-19 | 2016-12-07 | 宁波汇众汽车车桥制造有限公司 | Modified model turning clamp |
| CN206981785U (en) * | 2017-06-21 | 2018-02-09 | 雄名精机(上海)有限公司 | End-toothed disc Special Fixture for Machining |
| CN207823987U (en) * | 2018-01-04 | 2018-09-07 | 华南理工大学 | A kind of inside and outside clamping device when thin-wall tubular part rotation processing |
| CN209035490U (en) * | 2018-11-26 | 2019-06-28 | 重庆机床(集团)有限责任公司 | A kind of Manual quick clamping device |
| CN209998389U (en) * | 2019-01-22 | 2020-01-31 | 倍得福机械科技(常州)股份有限公司 | anti-deflection back-pull type hydraulic chuck |
| CN210359332U (en) * | 2019-06-12 | 2020-04-21 | 昆山奥玛泰机电设备有限公司 | Back-pull type chuck clamp of clutch flange |
| CN210548196U (en) * | 2019-09-09 | 2020-05-19 | 桂林福达齿轮有限公司 | Novel engine gear ring finish turning inner hole clamp |
| CN211464867U (en) * | 2019-11-29 | 2020-09-11 | 天津市增益达精锻齿轮科技有限公司 | Tool for integrally and finely turning spherical surface and inner hole of bevel gear by three claws |
| CN111185610A (en) * | 2020-01-14 | 2020-05-22 | 李克春 | Self-locking mechanical clamp |
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|---|---|
| CN112170878B (en) | 2021-08-27 |
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