CN212947259U

CN212947259U - Polishing clamp and clamping system

Info

Publication number: CN212947259U
Application number: CN202021515091.XU
Authority: CN
Inventors: 王龙祥
Original assignee: SHANGHAI NEXTREND TECHNOLOGY CO LTD
Current assignee: Shanghai Millimeter Star Optical Co ltd
Priority date: 2020-07-28
Filing date: 2020-07-28
Publication date: 2021-04-13
Anticipated expiration: 2030-07-28

Abstract

The utility model belongs to the technical field of the optical machining, a polishing anchor clamps and clamping system is specifically disclosed, polishing anchor clamps include positioning seat, lock sleeve, holder and elastic compression piece. The locking sleeve is provided with a tapered groove and a containing groove which are communicated along the axial direction of the locking sleeve, and the locking sleeve is sleeved with the positioning seat and is positioned in the containing groove. The clamping piece is arranged in the locking sleeve in a penetrating mode, one end of the clamping piece is connected with the positioning seat, the other end of the clamping piece extends to be provided with at least two clamping jaws, and the at least two clamping jaws are sleeved in the conical groove. The elastic compression piece is positioned in the accommodating groove, and two ends of the elastic compression piece respectively abut against the first end of the positioning seat in the axial direction of the positioning seat and the groove bottom of the accommodating groove; the elastic compression piece is configured to enable the inner wall of the conical groove to be pressed against the claws so that at least two claws are close to each other to clamp the lens. The quick clamping of polishing anchor clamps has been realized jointly to lock sleeve and holder, has improved clamping efficiency. The clamping system comprises a pressing piece and a plurality of polishing clamps, and automation and batch operation of the clamping system are realized.

Description

Polishing clamp and clamping system

Technical Field

The utility model relates to an optics processing technology field especially relates to a polishing anchor clamps and clamping system.

Background

In the field of optical cold working, grinding and polishing are very critical processing procedures. When the spherical end surface of the cylindrical microlens is processed, the microlens blank is clamped on a special polishing clamp for grinding and polishing.

The existing polishing clamp uses a structure of a screw cap and a screw base to lock a micro lens. Because the rotary locking mechanism is difficult to realize automation and batch operation, lens blanks to be processed need to be manually loaded into the polishing clamp one by one, and finished products after processing are taken out one by one, so that the rotary locking mechanism is time-consuming, labor-consuming, low in clamping efficiency and difficult to adapt to mass and automatic production of lenses.

Therefore, a polishing jig and clamping system are needed to solve the above problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a polishing clamp to improve clamping efficiency, realize automatic clamping.

To achieve the purpose, the technical proposal adopted by the utility model is that:

a polishing jig comprising:

positioning seats;

the locking sleeve is provided with a tapered groove and an accommodating groove which are communicated along the axial direction of the locking sleeve, and the positioning seat is sleeved on the locking sleeve and is positioned in the accommodating groove;

the clamping piece penetrates through the locking sleeve, one end of the clamping piece is connected with the positioning seat, the other end of the clamping piece is provided with at least two clamping jaws in an extending mode, and the at least two clamping jaws are sleeved in the tapered groove;

the elastic compression piece is positioned in the accommodating groove, and two ends of the elastic compression piece respectively abut against the first end of the positioning seat in the axial direction and the groove bottom of the accommodating groove; the elastic compression piece is configured to enable the inner wall of the conical groove to be pressed against the clamping jaws so that at least two clamping jaws are close to each other to clamp the lens.

Preferably, the area of the longitudinal section of the tapered groove is gradually reduced along the compression direction of the elastic compression piece, and the outer side wall of the claw has a tapered surface matched with the inner wall of the tapered groove.

Preferably, the taper angle of the tapered groove is 15 ° to 55 °.

Preferably, the clamping piece comprises a fixing part and a connecting part which are connected in sequence, and the fixing part is fixedly connected with the positioning seat; one end of the connecting part extends to form at least two clamping jaws distributed along the circumferential direction of the connecting part, and the elastic compression piece is sleeved on the connecting part.

Preferably, the number of the jaws is four, and the four jaws are uniformly distributed along the circumferential direction of the connecting part.

Preferably, the fixing portion is provided with an external thread, the first end is correspondingly provided with a threaded hole, and the fixing portion is in threaded connection with the positioning seat.

Preferably, the positioning seat is provided with a ball socket at the second axial end thereof, and the ball socket can be matched with a stylus of a polishing machine so as to drive the polishing clamp to rotate.

Preferably, the positioning seat, the locking sleeve and the clamping piece are all made of brass.

Another object of the utility model is to provide a clamping system to improve clamping efficiency, realize automatic and batched operation.

the utility model provides a clamping system, includes down the piece and a plurality of foretell polishing anchor clamps, down the piece and include a plurality of claws of pressing, every press the claw homoenergetic enough to support and press corresponding polishing anchor clamps, and make the lock sleeve is followed the compression direction of elasticity compression piece slides, in order to relax the jack catch.

Preferably, the outer wall of the locking sleeve is provided with a stepped surface, and the pressing claw can abut against the stepped surface.

The utility model has the advantages that:

the utility model provides a polishing clamp, including positioning seat, lock sleeve, holder and elastic compression piece. Wherein the positioning seat is sleeved in the locking sleeve, and the clamping piece is arranged in the locking sleeve in a penetrating way. The elastic compression piece enables the tapered groove of the locking sleeve to abut against the clamping jaws so that the clamping jaws can approach each other to clamp the lens. Compared with a rotary locking mechanism of a traditional polishing clamp, under the action of restoring force of the elastic compression piece, the locking sleeve and the clamping piece jointly realize quick clamping of the polishing clamp, clamping efficiency is improved, and automatic clamping of the polishing clamp is facilitated.

The utility model provides a clamping system, including holding down piece and a plurality of foretell polishing anchor clamps. The rapid clamping of the polishing clamp can be realized through a plurality of pressing claws of the pressing piece, and the automation and the batch operation of a clamping system are realized.

Drawings

Fig. 1 is a front view of a polishing jig holding a lens according to an embodiment of the present invention;

fig. 2 is a cross-sectional view of a polishing jig holding a lens according to an embodiment of the present invention;

fig. 3 is a cross-sectional view of a locking sleeve according to an embodiment of the present invention;

fig. 4 is a cross-sectional view of a clamp provided by an embodiment of the present invention;

fig. 5 is a cross-sectional view of a positioning seat provided in an embodiment of the present invention;

fig. 6 is a perspective view of a clamping system provided by the embodiment of the present invention.

The component names and designations in the drawings are as follows:

10. polishing the fixture; 20. a lens;

1. positioning seats; 11. a threaded hole; 12. a ball socket; 2. a locking sleeve; 21. a tapered groove; 22. accommodating grooves; 23. a step surface; 24. a circular cavity; 3. a clamping member; 31. a fixed part; 32. a connecting portion; 321. blind holes; 33. a claw; 331. a gap; 4. a resilient compression member; 5. a push-down member; 51. pressing claws; 511. a cross beam; 512. and (5) vertical beams.

Detailed Description

In order to make the technical problem solved by the present invention, the technical solution adopted by the present invention and the technical effect achieved by the present invention clearer, the technical solution of the present invention will be further explained by combining the drawings and by means of the specific implementation manner. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some but not all of the elements related to the present invention are shown in the drawings.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, detachably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "right", etc. are used in an orientation or positional relationship based on that shown in the drawings only for convenience of description and simplicity of operation, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.

The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.

For convenience of description, the z direction in fig. 3 is taken as a vertical direction.

As shown in fig. 1 to 4, the present embodiment discloses a polishing jig 10, and the polishing jig 10 includes a positioning seat 1, a locking sleeve 2, a clamping member 3, and an elastic compression member 4. Wherein the locking sleeve 2 is provided with a tapered groove 21 and an accommodating groove 22 which are communicated along the axial direction, and the locking sleeve 2 is sleeved with the positioning seat 1 and is positioned in the accommodating groove 22. Wear to locate in the lock sleeve 2, the one end of holder 3 links to each other with positioning seat 1, and the other end extends and is provided with two at least jack catchs 33, and two at least jack catchs 33 cup joint in tapered groove 21. The elastic compression element 4 is located in the accommodating groove 22, and two ends of the elastic compression element respectively abut against the first end of the positioning seat 1 in the axial direction and the groove bottom of the accommodating groove 22. The elastic compression member 4 can press the inner wall of the tapered groove 21 against the claws 33 to bring at least two claws 33 close to each other, thereby holding the lens 20.

In this embodiment, the elastic compression member 4 makes the tapered groove 21 in the locking sleeve 2 press against the claws 33 of the holding member 3, and the claws 33 can approach each other to hold the lens 20. Compared with a traditional rotary locking mechanism of the polishing clamp, under the action of restoring force of the elastic compression piece 4, the locking sleeve 2 and the clamping piece 3 jointly realize quick clamping of the polishing clamp 10, clamping efficiency is improved, and automatic clamping of the polishing clamp 10 is facilitated.

Specifically, since the elastic compression member 4 has a restoring force, the tapered groove 21 of the lock sleeve 2 always has a tendency to hug the claw 33, and the polishing jig 10 can firmly hold the lens 20. When the elastic compression piece 4 is squeezed, the locking sleeve 2 can vertically slide downwards relative to the positioning seat 1, the contact area between the tapered groove 21 and the clamping jaws 33 is gradually reduced, the clamping jaws 33 have elasticity, and under the action of the elastic force of the clamping jaws 33, the clamping jaws 33 are mutually far away from each other so as to loosen the lens 20 or place the lens 20 between the clamping jaws 33.

As shown in fig. 2 to 4, the area of the longitudinal section of the tapered groove 21 is gradually reduced in the compression direction of the elastic compression member 4, and the outer side wall of the claw 33 has a tapered surface adapted to the inner wall of the tapered groove 21.

As shown in fig. 3, the diameter of the top of the tapered groove 21 is larger than the diameter of the bottom of the tapered groove 21, the longitudinal section of the tapered groove 21 is tapered with a larger top and a smaller bottom, and the tapered groove 21 is specifically a bell mouth vertically upward along the axial direction thereof. A circular cavity 24 is formed between the tapered groove 21 and the accommodating groove 22, and the tapered groove 21, the circular cavity 24 and the accommodating groove 22 are communicated in sequence. The bottom of the tapered groove 21 is communicated with the accommodating groove 22 through the circular cavity 24, the circular cavity 24 enables the groove bottom of the tapered groove 21 not to have a sharp angle, the tapered groove 21 is convenient to process, and the interference between the groove bottom of the tapered groove 21 and the clamping piece 3 is avoided.

Preferably, the taper angle of the tapered groove 21 is 15 ° to 55 ° so that the lock sleeve 2 and the clamp 3 can provide a suitable clamping force. When the taper angle of the tapered groove 21 is less than 15 °, the holding force of the polishing jig 10 is too large, and the lens 20 is easily damaged; when the taper angle of the tapered groove 21 is larger than 55 °, the holding force of the polishing jig 10 is too small to hold the lens 20 well.

As shown in fig. 2 to 5, the clamping member 3 includes a fixing portion 31 and a connecting portion 32 connected in sequence, and the fixing portion 31 is fixedly connected with the positioning seat 1. One end of the connecting portion 32 is extended and provided with at least two claws 33 distributed along the circumferential direction thereof, and the elastic compression member 4 is sleeved on the connecting portion 32.

Preferably, the fixing portion 31 is provided with an external thread, the first end of the positioning seat 1 is correspondingly provided with a threaded hole 11, and the fixing portion 31 is in threaded connection with the positioning seat 1.

Preferably, the number of the jaws 33 is four, and the four jaws 33 are uniformly distributed along the circumferential direction of the connecting portion 32. At one end of the connecting portion 32, a cross is cut by a wire and machined, and finally four jaws 33 are formed. Of course, the jaws 33 may also be two, three or more than four. Because the overall size of the lens 20 to be ground and polished is small, compared with two claws 33 or three claws 33, the four claws 33 can hold the lens 20 more stably, which is convenient for wire cutting.

As shown in fig. 2, the latch 33 is inserted into the tapered groove 21, and the head of the latch extends out of the tapered groove 21 of the locking sleeve 2 to facilitate the placement and the taking of the lens 20, and to improve the elasticity of the latch 33.

It should be noted that, a gap 331 is further provided between any two adjacent jaws 33, and the gap 331 extends along the axial direction of the clamping member 3, so that the elasticity of the jaws 33 is increased, and the polishing clamp 10 can be clamped quickly. The clamping piece 3 is provided with blind holes 321 along the axial direction thereof, wherein the blind holes 321 extend from the clamping claws 33 to the connecting part 32, so that the weight of the clamping piece 3 is reduced, and the light weight processing of the polishing clamp 10 is realized.

As shown in fig. 5, the positioning seat 1 is provided with a ball socket 12 at a second axial end thereof, and the ball socket 12 can be matched with a stylus of a polishing machine, so as to drive the polishing fixture 10 to rotate. Preferably, the center of the ball socket 12 is located on the axis of the positioning seat 1, so that the polishing fixture 10 is uniformly stressed and can rotate stably.

It should be noted that, the material of positioning seat 1, lock sleeve 2 and holder 3 is brass, and the processing of the polishing anchor clamps 10 of being convenient for can avoid jack catch 33 to cause the damage to lens 20 under the prerequisite of firm centre gripping lens 20 simultaneously for holder 3 has good centre gripping effect.

As shown in fig. 6, the present embodiment further discloses a clamping system, which includes a lower pressing member 5 and a plurality of polishing jigs 10 as described above, where the lower pressing member 5 includes a plurality of pressing claws 51, and each pressing claw 51 can press against the corresponding polishing jig 10, and make the locking sleeve 2 slide along the compression direction of the elastic compression member 4 to release the claw 33.

In the present embodiment, the pressing member 5 is composed of a beam 511 and a plurality of pressing claws 51 distributed on both sides of the beam 511. The pressing claw 51 comprises any two adjacent vertical beams 512, and the pressing claw 51 with a U-shaped structure is enclosed by the any two adjacent vertical beams 512 and the cross beam 511. It is understood that the cross beam 511 of the pressing member 5 may be replaced by a circular or square frame structure, and the pressing claw 51 may be a circular pressing claw or a square pressing claw. The specific structure of the pressing member 5 and the specific distribution positions of the pressing claws 51 need to be determined according to the distribution of the plurality of polishing fixtures 10, and only the requirement that the plurality of polishing fixtures 10 can be used for realizing automation and batch operation is met, which is not described herein again.

Specifically, the outer wall of the locking sleeve 2 has a stepped surface 23, and the pressing claw 51 can press against the stepped surface 23 to press down the locking sleeve 2 and release the claw 33.

For the sake of understanding, the operation of the installed system is as follows:

each pressing claw 51 can press against the stepped surface 23 of the corresponding locking sleeve 2 by the driving mechanism (not shown) of the pressing piece 5. The pushing down piece 5 moves along the compression direction of the elastic compression piece 4, so as to drive the locking sleeve 2 to slide along the compression direction of the elastic compression piece 4 relative to the positioning seat 1, the contact surface between the tapered groove 21 of the locking sleeve 2 and the clamping jaw 33 is reduced, the clamping jaws 33 are far away from each other, a lens 20 to be ground and polished is placed between the clamping jaws 33 of each polishing clamp 10 by a manipulator, then the driving device drives the pushing down piece 5 to move along the compression direction departing from the elastic compression piece 4, and is separated from contact with the locking sleeve 2, the locking sleeve 2 resets under the action of restoring force of the elastic compression piece 4, the clamping jaw 33 is pressed against the tapered groove 21, and the lens 20 is clamped. And finally, the polishing clamp 10 clamping the lens 20 is matched with a polishing machine and a grinding disc to jointly realize the grinding and polishing processing of the lens 20. After finishing the processing, placing a plurality of polishing fixtures 10 at the set positions, repeatedly pressing down the pressing piece 5 under the driving of the driving mechanism, loosening the lenses 20 by the claws 33, taking out the lenses 20 one by the manipulator, placing other lenses 20 to be processed into the polishing fixtures 10 again, and continuing to grind and polish.

In the present embodiment, the polishing jig 10 can be quickly clamped by the plurality of pressing claws 51 of the pressing piece 5, and automation and mass operation of the clamping system are realized.

The above embodiments have been described only the basic principles and features of the present invention, and the present invention is not limited by the above embodiments, and is not departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A polishing jig, comprising:

a positioning seat (1);

the locking sleeve (2) is provided with a tapered groove (21) and an accommodating groove (22) which are communicated along the axial direction of the locking sleeve (2), and the positioning seat (1) is sleeved on the locking sleeve (2) and is positioned in the accommodating groove (22);

the clamping piece (3) penetrates through the locking sleeve (2), one end of the clamping piece (3) is connected with the positioning seat (1), the other end of the clamping piece is provided with at least two clamping jaws (33) in an extending mode, and the at least two clamping jaws (33) are sleeved in the tapered groove (21);

the elastic compression piece (4) is positioned in the accommodating groove (22), and two ends of the elastic compression piece (4) respectively abut against the first end of the positioning seat (1) in the axial direction and the groove bottom of the accommodating groove (22); the elastic compression piece (4) is configured to enable the inner wall of the conical groove (21) to be pressed against the clamping jaws (33) so that at least two clamping jaws (33) are close to each other to clamp the lens (20).

2. A polishing jig according to claim 1, characterized in that the area of the longitudinal section of the tapered groove (21) is gradually reduced in the compression direction of the elastic compression member (4), and the outer side wall of the claw (33) has a tapered surface fitting the inner wall of the tapered groove (21).

3. A polishing jig according to claim 2, characterized in that the taper angle of the tapered groove (21) is 15 ° to 55 °.

4. The polishing clamp according to claim 1, characterized in that the clamping piece (3) comprises a fixing part (31) and a connecting part (32) which are connected in sequence, wherein the fixing part (31) is fixedly connected with the positioning seat (1); one end of the connecting part (32) extends to be provided with at least two clamping jaws (33) distributed along the circumferential direction of the connecting part, and the elastic compression part (4) is sleeved on the connecting part (32).

5. A polishing jig according to claim 4, characterized in that the number of the claws (33) is four, and four claws (33) are evenly distributed in the circumferential direction of the connecting portion (32).

6. The polishing clamp according to claim 4, wherein the fixing portion (31) is provided with an external thread, the first end is correspondingly provided with a threaded hole (11), and the fixing portion (31) is in threaded connection with the positioning seat (1).

7. The polishing jig of claim 1, wherein the positioning base (1) is provided with a ball socket (12) at a second axial end thereof, and the ball socket (12) can be matched with a stylus of a polishing machine so as to drive the polishing jig to rotate.

8. The polishing clamp according to claim 1, wherein the positioning seat (1), the locking sleeve (2) and the clamping member (3) are made of brass.

9. A clamping system, comprising a lower member (5) and a plurality of polishing jigs according to any one of claims 1 to 8, wherein the lower member (5) comprises a plurality of pressing claws (51), each pressing claw (51) being capable of pressing against a corresponding polishing jig and sliding the locking sleeve (2) in a compression direction of the elastic compression member (4) to release the clamping jaws (33).

10. The clamping system according to claim 9, wherein the outer wall of the locking sleeve (2) is provided with a stepped surface (23), and the pressing claw (51) can be pressed against the stepped surface (23).