CN213225514U

CN213225514U - Clamp for grinding lens

Info

Publication number: CN213225514U
Application number: CN202022216021.0U
Authority: CN
Inventors: 张兵
Original assignee: Yichang Huazhong Wisdom Optical Co ltd
Current assignee: Yichang Huazhong Wisdom Optical Co ltd
Priority date: 2020-09-30
Filing date: 2020-09-30
Publication date: 2021-05-18
Anticipated expiration: 2030-09-30

Abstract

The utility model provides a lens grinds and uses anchor clamps relates to lens processing auxiliary device's technical field, and it is including the centre gripping cover that is used for the elasticity holder of centre gripping lens and is used for fastening the holder, the centre gripping hole of a plurality of coaxial lines is seted up at the holder middle part, and the diameter of centre gripping hole outside-in reduces in proper order, a plurality of heavy grooves have been seted up along centre gripping hole axial length direction to the holder, and a plurality of gripper jaws of formation are cut apart to heavy groove with the part that the holder is provided with the centre gripping hole. The step face that this scheme utilized adjacent centre gripping hole to form can conveniently fix a position the centre gripping to the lens for it is more accurate swift when pressing from both sides the dress lens.

Description

Clamp for grinding lens

Technical Field

The utility model relates to a lens processing auxiliary device's technical field especially relates to a lens is anchor clamps for grinding.

Background

The lens is an optical element which can refract light to a certain extent, and is an indispensable part on many optical devices, and the lens needs to be processed by grinding and polishing glass or transparent resin in the production process so as to improve the light transmittance of the lens and change the surface curvature of the lens.

According to the Chinese invention patent application with the application publication number of CN103728706A, the lens clamp comprises a rotating ring, a fixing ring and a plurality of clamping plates, wherein the fixing ring and the rotating ring are circular ring plates with circular holes in the centers, the clamping plates are triangular plates, a plurality of fixing shafts are arranged on the fixing ring in an annular array mode, one angle A of each clamping plate is rotatably connected with the fixing ring through the fixing shaft, one adjacent angle B of the angle A is connected with a pushing connecting rod through upward rotation, the other end of the pushing connecting rod is rotatably connected with the rotating ring, and the other adjacent angle C of the angle A freely moves.

The prior related art has the following technical defects: the clamp with the structure is not convenient for positioning the lens, and the lens is clamped obliquely when being clamped, so that the quality of the processed lens is reduced.

SUMMERY OF THE UTILITY MODEL

To the not enough that exists among the prior art, this scheme provides a lens is ground and is used anchor clamps, and it has the effect of being convenient for location, centre gripping lens.

According to the utility model discloses an embodiment, a lens is ground and is used anchor clamps, including the centre gripping cover that is used for the elasticity holder of centre gripping lens and is used for fastening the holder, the centre gripping hole of a plurality of coaxial lines is seted up at the holder middle part, and the diameter of centre gripping hole outside-in reduces in proper order, a plurality of heavy grooves have been seted up along centre gripping hole axial length direction to the holder, and a plurality of gripper jaws of formation are cut apart to heavy groove with the part that the holder is provided with the centre gripping hole.

Through the technical scheme, the stepped surfaces are formed by the clamping holes with different diameters, when the lens is clamped, the stepped surfaces are used for positioning the lens, the clamping claws are contracted by the clamping sleeves to complete clamping and positioning of the lens, the possibility of clamping deflection is reduced, and the clamping process of the lens is more convenient; meanwhile, the clamping holes with different diameters can also clamp lenses with different sizes, so that the device has more diversified functions.

Preferably, the clamping sleeve is provided with a stepped hole for mounting the clamping piece, a stepped hole coaxial with the stepped hole is arranged at the step of the stepped hole, and the small end of the tapered hole faces to the end with the smaller diameter of the stepped hole; the clamping piece is a stepped cylindrical component arranged in a stepped hole, the axis of the clamping hole is overlapped with the axis of the clamping piece, a frustum matched with the tapered hole is arranged at the stepped position outside the clamping piece, and the taper of the frustum is greater than that of the tapered hole; the inner wall of the small hole of the stepped hole is provided with an internal thread, and the outer circular surface of the small end of the clamping piece is provided with an external thread matched with the internal thread.

Through above technical scheme, when the centre gripping lens, make the holder remove along the axis direction of shoulder hole through rotating holder through screw-thread fit's structure, simultaneously under the taper hole of centre gripping cover and the frustum matched with structure of holder, the gripper jaw removes towards the axis direction of shoulder hole, presss from both sides the lens tightly for the process of centre gripping is more convenient, and the operating personnel of being convenient for more operates.

Preferably, a plurality of insertion holes are formed in the outer cylindrical surface of the large end of the clamping sleeve.

Through above technical scheme, when dismouting holder, can establish an appurtenance in the jack interpolation, like long member etc. make things convenient for more to rotate the holder.

Preferably, the outer cylindrical surface of the small end of the clamping sleeve is formed with a plane for the bolt to abut against, and the axis of the clamping sleeve is parallel to the plane.

Through above technical scheme, when the installation centre gripping cover, can use the bolt butt on the plane of centre gripping cover for the installation of axle sleeve is firm more reliable, can reduce the in-process anchor clamps of processing lens simultaneously and receive the effort and take place pivoted possibility.

Preferably, a plurality of rotating rods for rotating the clamping piece are detachably mounted on one surface, away from the clamping sleeve, of the clamping claw.

Through above technical scheme, when rotating the holder, can install the dwang on the holder, the holder is conveniently rotated to operating personnel more.

Preferably, the clamping piece is made of polytetrafluoroethylene.

Through the technical scheme, compared with the clamping piece made of common steel, the clamping piece made of polytetrafluoroethylene can reduce the possibility of clamping the lens, and meanwhile, the processing cost of the clamping piece can be reduced.

Compared with the prior art, the utility model discloses one of following beneficial effect has at least:

1. the stepped surface formed by the clamping holes arranged on the clamping piece can be used for positioning more conveniently when the lens is clamped, so that the possibility of clamping deflection is reduced, and the quality of the processed lens is improved;

2. the lens can be more conveniently clamped by utilizing the threaded structure, the taper hole and the frustum matched structure which are arranged on the clamping sleeve and the clamping piece.

Drawings

FIG. 1 is a schematic overall structure of the present application;

FIG. 2 is a schematic view of the structure of the clamping sleeve of the present application;

fig. 3 is a schematic structural view of the clamping member of the present application.

In the above drawings: 1. a clamping sleeve; 11. a stepped hole; 111. a taper hole; 12. a jack; 13. a plane; 2. a clamping member; 21. a clamping hole; 22. sinking a groove; 23. a gripper jaw; 24. a frustum; 25. rotating the rod.

Detailed Description

The technical solution of the present invention will be further explained with reference to the accompanying drawings and embodiments.

The utility model provides a lens grinds uses anchor clamps, refers to fig. 1, including centre gripping cover 1 and holder 2, is provided with a plurality of diameters clamping hole 21 that reduce in proper order on holder 2, when the centre gripping lens, utilizes the ladder face that forms between the adjacent clamping hole 21 can be more convenient fix a position the dress to the lens for the process of pressing from both sides the dress is more convenient, accurate, when reducing and press from both sides the dress lens, the lens produces crooked probably.

Referring to fig. 2, the clamping sleeve 1 is a stepped cylindrical member, the clamping sleeve 1 can be made of cylindrical steel, and the clamping sleeve 1 can be machined by a lathe, a stepped hole 11 is formed in the clamping sleeve 1 in the axis direction, the large end of the stepped hole 11 is located at the large end of the clamping sleeve 1, an internal thread is formed in the inner cylindrical surface of the small end of the stepped hole 11, a tapered hole 111 is formed in the stepped surface of the stepped hole 11, the small end of the tapered hole 111 is located at the small end of the stepped hole 11, the diameter of the large end of the tapered hole 111 is equal to that of the large end of the stepped hole 11, and the diameter of the small end of the tapered hole 111 is equal to that of the small end of the stepped hole 11.

A plane 13 is formed on the outer cylindrical surface of the small end of the clamping sleeve 1, and when the clamping sleeve 1 can be conveniently installed on the plane 13, the plane 13 can be abutted by bolts, so that the clamping sleeve 1 can be installed more conveniently and reliably.

Holder 2 is installed in shoulder hole 11, and holder 2 is the ladder cylindric component of an adaptation shoulder hole 11, and holder 2 adopts the polytetrafluoroethylene preparation that has certain elasticity, compares and uses ordinary steel preparation, can play the effect that reduces the processing cost, can reduce the possibility of damaging the lens simultaneously.

Referring to fig. 3, the clamping holes 21 are formed in the large end of the clamping piece 2, the clamping holes 21 are coaxially arranged along the axis of the clamping piece 2, the diameters of the clamping holes 21 are sequentially reduced towards the small end of the clamping piece 2, the clamping holes 21 are communicated to form stepped holes, and when a lens is clamped, the stepped surfaces formed by the adjacent clamping holes 21 are used as reference surfaces for positioning the lens, so that the lens is more conveniently positioned, and the possibility of tilting of lens clamping is reduced.

The large end of the clamping piece 2 is provided with a plurality of sinking grooves 22 along the axis direction, two sinking grooves 22 which are vertical to each other are adopted, the large end of the clamping piece 2 is divided and formed into four clamping claws 23 by the sinking grooves 22, and the clamping claws 23 can have a certain telescopic function.

Referring to fig. 2 and 3, an external thread matched with the internal thread of the clamping sleeve 1 is arranged on the outer cylindrical surface of the small end of the clamping member 2, a frustum 24 matched with the taper hole 111 is formed on the stepped surface of the outer side of the clamping member 2, the large end of the frustum 24 is positioned on one side of the large end of the clamping member 2, the small end of the frustum 24 is positioned on one side of the small end of the clamping member 2, and the frustum 24 can be integrally formed on the clamping member 2; the taper of the frustum 24 is smaller than that of the taper hole 111, and the bottom of the sink groove 22 is flush with the small end of the frustum 24.

When the lens is clamped, the clamping piece 2 is rotated to enable the clamping piece 2 to move towards the small end of the stepped hole 11, and the lens is clamped under the matching of the frustum 24 of the taper hole 111, so that the clamping process is more convenient.

For conveniently rotating holder 2, seted up a plurality of jacks 12 on the main aspects face of cylinder of centre gripping cover 1, when rotating holder 2, can establish a long rod-shaped appurtenance in jack 12 interpolation, make things convenient for operating personnel to exert the effort to it more. Have seted up a plurality of counter bores on the side of centre gripping cover 1 is kept away from to gripper jaw 23, demountable installation has dwang 25 in the counter bore, and dwang 25 can adopt the cylinder steel preparation, and when rotating holder 2, dwang 25 can make things convenient for operating personnel's operation more for the process of dismouting holder 2 is convenient and fast more.

The application of this application lens is ground with anchor clamps implements the principle and is: install the grip sleeve 1 on the workstation of lathe, place the lens and fix a position it in the centre gripping hole 21 that adapts to the size, install holder 2 in the grip sleeve 1, install dwang 25 on gripper jaw 23, rotate gripper jaw 2, under the cooperation of helicitic texture, gripper jaw 2 moves towards the tip of shoulder hole 11, simultaneously under the effect of taper hole 111 and frustum 24, make gripper jaw 23 move towards the axis direction of shoulder hole 11, press from both sides the lens tight, it can to take out dwang 25 after pressing from both sides tight lens. When taking out the lens, the rotating lever 25 is mounted on the holding claw 23, and the holding member 2 is rotated in the reverse direction to take out the lens.

Finally, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the present invention can be modified or replaced by other means without departing from the spirit and scope of the present invention, which should be construed as limited only by the appended claims.

Claims

1. A lens grinding jig is characterized in that: including elastic clamping piece (2) that are used for the centre gripping lens and centre gripping cover (1) that is used for fastening clamping piece (2), centre gripping hole (21) of a plurality of coaxial lines are seted up at clamping piece (2) middle part, and centre gripping hole (21) outside-in's diameter reduces in proper order, a plurality of heavy grooves (22) have been seted up along the length direction of centre gripping hole (21) axis in clamping piece (2), and heavy groove (22) are cut apart a plurality of gripper jaws (23) of formation with clamping piece (2) are provided with a part of centre gripping hole (21).

2. The lens polishing jig according to claim 1, wherein: the clamping sleeve (1) is provided with a stepped hole (11) for mounting the clamping piece (2), a stepped part of the stepped hole (11) is provided with a taper hole (111) coaxial with the stepped hole (11), and the small end of the taper hole (111) faces to the end with the smaller diameter of the stepped hole (11); the clamping piece (2) is a stepped cylindrical component arranged in the stepped hole (11), the axis of the clamping hole (21) is overlapped with the axis of the clamping piece (2), a frustum (24) matched with the tapered hole (111) is arranged at the step position on the outer side of the clamping piece (2), and the taper of the frustum (24) is greater than that of the tapered hole (111); an internal thread is arranged on the inner wall of the small hole of the stepped hole (11), and an external thread matched with the internal thread is arranged on the outer circular surface of the small end of the clamping piece (2).

3. The lens polishing jig according to claim 2, wherein: and a plurality of jacks (12) are formed in the outer cylindrical surface of the large end of the clamping sleeve (1).

4. The lens polishing jig according to claim 2, wherein: the outer cylindrical surface of the small end of the clamping sleeve (1) is provided with a plane (13) for bolt abutting, and the axis of the clamping sleeve (1) is parallel to the plane (13).

5. The lens polishing jig according to claim 2, wherein: one surface of the clamping claw (23) far away from the clamping sleeve (1) is detachably provided with a plurality of rotating rods (25) used for rotating the clamping piece (2).

6. The lens polishing jig according to claim 1, wherein: the clamping piece (2) is made of polytetrafluoroethylene.