CN215748328U - Lens grinding clamp - Google Patents
Lens grinding clamp Download PDFInfo
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- CN215748328U CN215748328U CN202122403541.7U CN202122403541U CN215748328U CN 215748328 U CN215748328 U CN 215748328U CN 202122403541 U CN202122403541 U CN 202122403541U CN 215748328 U CN215748328 U CN 215748328U
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- positioning
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- positioning column
- clamping jaw
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Abstract
The utility model relates to a lens grinding clamp which comprises a clamp head main body and a locking sleeve matched with the clamp head main body, wherein one end of the clamp head main body is provided with a positioning column capable of being matched with a polishing machine, the other end of the clamp head main body is provided with an elastic clamping jaw, the elastic clamping jaw comprises a connecting part and a clamping part, two ends of the connecting part are respectively connected to the clamping part and the positioning column, the connecting part is provided with an external thread, an internal thread matched with the external thread is arranged in the locking sleeve, and the hardness of the elastic clamping jaw is smaller than that of the positioning column. According to the technical scheme, the hardness of the elastic clamping jaw is smaller than that of the positioning column, the positioning column is hard, the clamping and positioning requirements of the polishing machine can be met, the positioning column is installed on the existing polishing machine and is not prone to deformation and displacement, the elastic clamping jaw is made of a material with low hardness, the hard contact between the elastic clamping jaw and the cylindrical lens can be reduced, the cylindrical lens is protected to a certain extent, and the processing quality of the cylindrical lens is improved.
Description
Technical Field
The utility model relates to a lens grinding clamp, and belongs to the field of optical component processing devices.
Background
In the field of cold working of optical parts, grinding and polishing of optical parts are required, and grinding and polishing are very critical working procedures. When producing and processing the optical parts of the small cylindrical lens type, in order to ensure the grinding and polishing precision, the small cylindrical lens needs to be clamped on a grinding clamp for grinding and polishing, so as to ensure that the concentricity and the cylindricity of the small cylindrical lens part after grinding meet the requirements. Therefore, in the Chinese utility model entitled "a small-sized lens precision grinding and polishing spring clamp", which is granted the publication number CN205415205U, discloses a small-sized spring clamp for precision grinding and polishing of lenses, which comprises a spring clamp main body and a spring clamp locking sleeve, one end of the spring chuck main body is provided with a positioning cylinder which can be connected with a precision polishing machine, the other end of the spring chuck main body is provided with a spring clamping jaw which is concentric with the positioning cylinder, a transition step and a locking external thread are arranged between the positioning cylinder and the spring clamping jaw, a precise clamping hole penetrating through the positioning cylinder is arranged inside the spring clamping head body, the spring chuck locking sleeve is provided with a concentric taper hole and a locking internal thread which can tighten the spring clamping jaw, the outer circle of the spring chuck locking sleeve is provided with a straight knurling convenient for locking operation, and the spring chuck main body and the spring chuck locking sleeve are both formed by brass processing.
Above-mentioned anchor clamps are when using, put into chuck main part with cylindrical lens, rotate the lock sleeve again to press from both sides cylindrical lens tight, this kind of anchor clamps require highly to staff's operation experience, and the lock sleeve is locked untight, and then cylindrical lens can position deviation appear or rock, thereby influence grinding quality, and the lock sleeve is locked too tightly, can press from both sides cylindrical lens's surface occasionally and hinder, the clamp mark that appears unacceptable.
Accordingly, the present inventors have made extensive studies to solve the above problems and have made the present invention.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a lens grinding clamp which can reduce clamping loss and improve the processing quality of a cylindrical lens.
In order to achieve the purpose, the utility model adopts the following technical scheme:
lens grind anchor clamps, including chuck main part and with chuck main part complex lock sleeve, the one end of chuck main part be equipped with can with burnishing machine complex reference column, the other end of chuck main part is equipped with spring clamping jaw, spring clamping jaw includes connecting portion and clamping part, the both ends of connecting portion are connected respectively on clamping part and reference column, are equipped with the external screw thread on the connecting portion, be equipped with in the lock sleeve with external screw thread complex internal thread, spring clamping jaw's hardness is less than the hardness of reference column.
In a preferred embodiment of the present invention, the hardness of the locking sleeve is the same as the hardness of the positioning post.
As a preferable mode of the utility model, the elastic clamping jaw is a plastic part, the positioning column is a brass part, and the locking sleeve is a brass part.
As a preferable mode of the present invention, a positioning table is provided at one end of the connecting portion close to the positioning column, the diameter of the positioning table is the same as the outer diameter of the positioning column, and the positioning table is fixedly connected to the positioning column.
As a preferred mode of the present invention, the positioning table is provided with a positioning rod portion, the positioning column is provided with a positioning hole, and the positioning rod portion is inserted into the positioning hole in a manner that the positioning rod portion cannot rotate relative to the positioning hole.
As a preferable mode of the present invention, the positioning rod is installed in the positioning hole by screwing.
In a preferred embodiment of the present invention, an annular flange is formed on the connecting portion, and the external thread is provided on the annular flange.
In a preferred aspect of the present invention, the holding portion is provided with a receiving hole for receiving the cylindrical lens, the receiving hole extends from one end portion of the holding portion to the other end portion to form a support base, the holding portion is further provided with a plurality of first linear slits, the plurality of first linear slits are arranged in a circumferential direction of the holding portion, the first linear slits penetrate from an outer wall of the holding portion to the receiving hole, and the first linear slits extend from one axial end portion of the holding portion to the other axial end portion.
As a preferable mode of the present invention, the connector further includes an adjustment hole provided in the connection portion, the adjustment hole is coaxially provided in communication with the accommodation hole, the connection portion is provided with a plurality of second slits, the plurality of second slits are arranged along a circumferential direction of the connection portion, the second slits penetrate from an outer wall of the connection portion to the adjustment hole, and the second slits are communicated with the first slits.
As a preferable mode of the present invention, an outer conical surface is formed on the clamping portion, and an inner conical surface matched with the outer conical surface is provided on the locking sleeve.
By adopting the technical scheme of the utility model, the hardness of the elastic clamping jaw is less than that of the positioning column, the positioning column is hard, the clamping and positioning requirements of the polishing machine can be met, the positioning column is installed on the conventional polishing machine and is not easy to deform and displace, and the elastic clamping jaw is made of a material with low hardness, so that the hard contact between the elastic clamping jaw and the cylindrical lens can be reduced, a certain protection effect on the cylindrical lens is achieved, and the processing quality of the cylindrical lens is improved. Preferably, the elastic clamping jaw adopts a plastic piece, the positioning column adopts a brass material in the existing grinding fixture, and when the locking sleeve is operated to clamp tightly, the clamping part can be elastically compressed within a certain range, so that the damage to the cylindrical lens is reduced.
Drawings
FIG. 1 is a schematic view of the chuck body according to the present invention.
FIG. 2 is a schematic cross-sectional view of the chuck body according to the present invention.
Fig. 3 is a schematic cross-sectional view of the locking sleeve of the present invention.
Fig. 4 is a schematic structural view of the locking sleeve of the present invention.
In the figure:
Positioning hole 11 elastic clamping jaw 20
Holding portion 30 receiving hole 31
External conical surface 33 of first strip slit 32
The connecting portion 40 of the support table 34
Second strip slit 42 of adjusting hole 41
Positioning table 45 positioning rod part 46
Inner conical surface 202
Detailed Description
In order to further explain the technical solution of the present invention, the following detailed description is made with reference to the embodiments.
Referring to fig. 1 to 4, the lens grinding jig includes a chuck body 100 and a locking sleeve 200 engaged with the chuck body 100, wherein one end of the chuck body 100 is provided with a positioning post 10 capable of engaging with a polishing machine, and the other end of the chuck body 100 is provided with a resilient clamping jaw 20. Elastic clamping jaw 20 includes connecting portion 40 and clamping part 30, connecting portion 40 and clamping part 30 integrated into one piece, the both ends of connecting portion 40 are connected respectively on clamping part 30 and reference column 10, be equipped with external screw thread 44 on the connecting portion 40, be equipped with in the lock sleeve 200 with external screw thread 44 complex internal thread 201, when the centre gripping, as prior art is the same, place cylindrical lens on chuck main part 100, put lock sleeve 200 cover on cylindrical lens, through rotatory lock sleeve 200, make lock sleeve 200 lock on connecting portion 40, cylindrical lens's tip stretches out from lock sleeve 200, for grinding, clamping part 30 then presss from both sides tight cylindrical lens, restriction cylindrical lens's removal.
In the utility model, the hardness of the elastic clamping jaw 20 is less than that of the positioning column 10. The positioning column 10 is made of the material and specification of the same type of clamp in the prior art, so that the positioning column can be assembled on the existing polishing machine. The hardness of the elastic clamping jaw 20 can be slightly less than that of the positioning column 10, the lower the hardness of the elastic clamping jaw 20 is, the better the protection of the elastic clamping jaw on the cylindrical lens is, but the lower the hardness is, the stable clamping effect is difficult to be achieved, and under the guidance of the concept of the present application, a person skilled in the art can adjust the hardness of the elastic clamping jaw 20 according to the hardness of the cylindrical lens itself. In a preferred embodiment of the present invention, the hardness of the locking sleeve 200 is the same as the hardness of the positioning post 10. As a preferred mode of the present invention, the elastic clamping jaw 20 is a plastic part, the positioning column 10 is a brass part, and the locking sleeve 200 is a brass part.
In a preferred embodiment of the present invention, a positioning table 45 is provided at one end of the connecting portion 40 close to the positioning column 10, the diameter of the positioning table 45 is the same as the outer diameter of the positioning column 10, and the positioning table 45 is fixedly connected to the positioning column 10.
As a preferable aspect of the present invention, the positioning table 45 is provided with a positioning rod portion 46, the positioning column 10 is provided with a positioning hole 11, and the positioning rod portion 46 is inserted into the positioning hole 11 so as not to be rotatable with respect to the positioning hole 11.
As a preferred mode of the present invention, the positioning rod portion 46 is installed in the positioning hole 11 by means of screw connection.
In a preferred embodiment of the present invention, an annular flange 43 is formed on the connecting portion 40, and the external thread 44 is provided on the annular flange 43.
In a preferred embodiment of the present invention, the holding portion 30 is provided with a receiving hole 31 for receiving the cylindrical lens, the receiving hole 31 extends from one end portion of the holding portion 30 to the other end to form a support base 34, the holding portion 30 is further provided with a plurality of first linear slits 32, the plurality of first linear slits 32 are arranged in the circumferential direction of the holding portion 30, in the embodiment, four first linear slits 32 are provided, the first linear slits 32 penetrate from the outer wall of the holding portion 30 to the receiving hole 31, and the first linear slits 32 extend from one axial end portion of the holding portion 30 to the other axial end portion.
As a preferable aspect of the present invention, the present invention further includes an adjusting hole 41 provided in the connecting portion 40, wherein the diameter of the adjusting hole 41 is smaller than the diameter of the accommodating hole 31, the adjusting hole 41 is coaxially provided in communication with the accommodating hole 31, the connecting portion 40 is provided with a plurality of second slits 42, the plurality of second slits 42 are arranged in the circumferential direction of the connecting portion 40, the number of the second slits 42 is 4, the second slits 42 penetrate from the outer wall of the connecting portion 40 to the adjusting hole 41, and the second slits 42 are in communication with the first slits 32.
In a preferred embodiment of the present invention, the holding portion 30 is formed with an outer tapered surface 33, and the locking sleeve 200 is provided with an inner tapered surface 202 which is engaged with the outer tapered surface 33. When the locking sleeve 200 is moved over the external thread 44, the external conical surface 33 is pressed by the internal conical surface 202, so that the clamping portion 30 is moved axially together, thereby clamping the cylindrical lens therein.
The product form of the present invention is not limited to the embodiments, and any suitable changes or modifications of the similar ideas by anyone should be considered as not departing from the patent scope of the present invention.
Claims (10)
1. Lens grind anchor clamps, including chuck main part and with chuck main part complex lock sleeve, the one end of chuck main part be equipped with can with burnishing machine complex reference column, the other end of chuck main part is equipped with spring clamping jaw, spring clamping jaw includes connecting portion and clamping part, the both ends of connecting portion are connected respectively on clamping part and reference column, are equipped with the external screw thread on the connecting portion, be equipped with in the lock sleeve with external screw thread complex internal thread, its characterized in that: the hardness of the elastic clamping jaw is smaller than that of the positioning column.
2. The lens polishing jig of claim 1, wherein: the hardness of the locking sleeve is the same as that of the positioning column.
3. The lens polishing jig of claim 1, wherein: the elastic clamping jaw is a plastic part, the positioning column is a brass part, and the locking sleeve is a brass part.
4. The lens polishing jig of claim 1, wherein: one end of the connecting part, which is close to the positioning column, is provided with a positioning table, the diameter of the positioning table is the same as the outer diameter of the positioning column, and the positioning table is fixedly connected with the positioning column.
5. The lens polishing jig of claim 4, wherein: the positioning table is provided with a positioning rod part, the positioning column is provided with a positioning hole, and the positioning rod part is inserted into the positioning hole in a mode that the positioning rod part cannot rotate relative to the positioning hole.
6. The lens polishing jig of claim 5, wherein: the positioning rod part is installed in the positioning hole in a threaded connection mode.
7. The lens polishing jig of claim 1, wherein: an annular flange is formed on the connecting part, and the external thread is arranged on the annular flange.
8. The lens polishing jig of claim 1, wherein: the clamping part is provided with a containing hole for containing a cylindrical lens, the containing hole extends from one end part of the clamping part to the other end to form a supporting table, the clamping part is further provided with a plurality of first strip-shaped seams, the first strip-shaped seams are distributed along the circumferential direction of the clamping part, the first strip-shaped seams penetrate through the outer wall of the clamping part to the containing hole, and the first strip-shaped seams extend from one axial end part of the clamping part to the other axial end part.
9. The lens lapping fixture of claim 8, wherein: the adjusting device is characterized by further comprising an adjusting hole arranged on the connecting portion, the adjusting hole is communicated with the accommodating hole and is coaxially arranged, a plurality of second strip-shaped seams are arranged on the connecting portion along the circumferential direction of the connecting portion, the second strip-shaped seams penetrate through the outer wall of the connecting portion to the adjusting hole, and the second strip-shaped seams are communicated with the first strip-shaped seams.
10. The lens polishing jig of claim 1, wherein: an outer conical surface is formed on the clamping portion, and an inner conical surface matched with the outer conical surface is arranged on the locking sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122403541.7U CN215748328U (en) | 2021-09-30 | 2021-09-30 | Lens grinding clamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122403541.7U CN215748328U (en) | 2021-09-30 | 2021-09-30 | Lens grinding clamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215748328U true CN215748328U (en) | 2022-02-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122403541.7U Active CN215748328U (en) | 2021-09-30 | 2021-09-30 | Lens grinding clamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215748328U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116037534A (en) * | 2023-03-27 | 2023-05-02 | 方大聚能(北京)科技有限公司 | A belt cleaning device for unmanned aerial vehicle washs photovoltaic module |
-
2021
- 2021-09-30 CN CN202122403541.7U patent/CN215748328U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116037534A (en) * | 2023-03-27 | 2023-05-02 | 方大聚能(北京)科技有限公司 | A belt cleaning device for unmanned aerial vehicle washs photovoltaic module |
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