CN210189323U

CN210189323U - Clamping device for processing plano-convex lens or plano-concave lens

Info

Publication number: CN210189323U
Application number: CN201921066870.3U
Authority: CN
Inventors: Boyu Jiang; 姜博宇; Rui Wu; 武锐
Original assignee: BEIJING TRANS MANUFACTURE AND TRADE Co Ltd
Current assignee: BEIJING TRANS MANUFACTURE AND TRADE Co Ltd
Priority date: 2019-07-09
Filing date: 2019-07-09
Publication date: 2020-03-27
Anticipated expiration: 2029-07-09

Abstract

The application discloses a clamping device for processing plano-convex lens or plano-concave lens sets up in lens grinding device's below, and the lens dress clamp that will process the sphere in advance is on the device, and cooperation lens grinding device processes the plane of lens. The holding device comprises a part seat and a positioning assembly for positioning the lens. The positioning assembly comprises a plurality of stop blocks arranged along the circumferential direction of the part seat, a first adjusting mechanism used for adjusting the distance between the stop blocks and the part seat and a second adjusting mechanism used for adjusting the distance between the upper ends of the stop blocks and the upper ends of the part seat. The mechanical center of the lens and the axis of the part seat are positioned on the same vertical line by the stop block and the part seat which are positioned from the edge and the spherical surface of the lens at the same time. So set up, to the planar processing back of lens, need not to correct the central deviation of lens, saved the cut edge process, avoided because of the extravagant, the useless, the problem of the scratch of formed surface by the scotch of material that the cut edge caused.

Description

Clamping device for processing plano-convex lens or plano-concave lens

Technical Field

The utility model relates to a lens processing equipment technical field especially relates to a clamping device for processing plano-convex lens or plano-concave lens.

Background

The present processing method for this kind of lens is to process the plane first and then the spherical surface, and when correcting the central deviation of the part, the periphery of the lens is processed by using the optical axis determined by the processed spherical surface as the reference, also called as cutting edge, to achieve the diameter tolerance and special shape. In the edge cutting process, material is easily wasted, and the risk of edge breakage and the risk of scratching the formed surface in the edge cutting process are caused.

Therefore, how to solve the problems of material waste and easy damage to the surface of the product caused by the existence of the edge cutting process in the machining process of the plano-convex lens and the plano-concave lens is an important technical problem to be solved by the technical personnel in the field.

SUMMERY OF THE UTILITY MODEL

In order to overcome the problems in the related art at least to a certain extent, the present application provides a clamping device for processing a plano-convex lens or a plano-concave lens, which can solve the problems of material waste and easy damage of the surface of a product caused by the existence of a trimming process in the processing process of the plano-convex lens and the plano-concave lens.

The utility model discloses a realize like this: a clamping device for processing a plano-convex lens or a plano-concave lens is arranged below a lens grinding device and comprises a part seat for supporting the lens and a positioning assembly for positioning the lens; the upper end of the part seat is in a hollow cylindrical shape, and the spherical side of the lens is supported at the upper end of the part seat; the positioning assembly comprises a plurality of stop blocks arranged along the circumferential direction of the part seat, a first adjusting mechanism used for adjusting the distance between the stop blocks and the part seat and a second adjusting mechanism used for adjusting the distance between the upper end of the stop blocks and the upper end of the part seat.

Preferably, a circular support plate is arranged at the lower end of the part seat, the first adjusting mechanism comprises a sliding groove for allowing the stopper to slide relative to the support plate and a locking mechanism for limiting the stopper to slide relative to the support plate, the extending direction of the sliding groove is consistent with the radial direction of the support plate, and the stopper can move relative to the support plate when the locking mechanism is in a first state; when the locking mechanism is in the second state, the stop block and the supporting disk are relatively fixed.

Preferably, the depth direction of the sliding groove penetrates through the supporting disc along the vertical direction, the locking mechanism comprises a bolt arranged along the vertical direction and a first nut connected with the bolt in a matched mode, the head of the bolt abuts against the lower surface of the supporting disc, the first nut is located above the supporting disc, and the tail of the bolt is connected with the stop block.

Preferably, the second adjusting mechanism comprises a blind hole arranged at the lower end of the stop block, the tail of the bolt can extend into the blind hole, and the tail of the bolt is in threaded connection with the stop block.

Preferably, the second adjusting mechanism further comprises a second nut connected with the bolt in a matched manner, and the second nut is located at the lower end of the stop block.

Preferably, anti-loose washers are arranged between the first nut and the support plate and between the second nut and the stop block.

Preferably, the supporting disc is provided with scale marks and numerical marks for displaying the distance between the scale marks and the central axis of the part seat at the edge of the sliding groove.

Preferably, still include the base, the part seat with locating component all sets up to a plurality ofly, the lower extreme of part seat extends and is equipped with the reference column, be provided with a plurality of confessions on the base the mounting hole that the reference column card was gone into.

Preferably, rosin wax is filled between the positioning column and the mounting hole.

Preferably, the mounting holes are evenly distributed on the base.

The technical scheme provided by the application comprises the following beneficial effects:

the application provides a clamping device for processing plano-convex lens or plano-concave lens sets up in lens grinding device's below, and the lens dress that will process the sphere in advance presss from both sides on this clamping device, and cooperation lens grinding device is processed the plane of lens. The holding device comprises a part seat for supporting the lens and a positioning assembly for positioning the lens. The upper end of the part seat is in a hollow cylinder shape, the spherical side of the lens is supported at the upper end of the part seat, when the lens is a plano-convex lens, the spherical surface of the lens is in line contact with the inner side edge line at the upper end of the hollow cylinder, and when the lens is a plano-concave lens, the spherical surface of the lens is in contact with the outer side edge at the upper end of the hollow cylinder. The positioning assembly comprises a plurality of stop blocks arranged along the circumferential direction of the part seat, a first adjusting mechanism used for adjusting the distance between the stop blocks and the part seat and a second adjusting mechanism used for adjusting the distance between the upper end of the stop blocks and the upper end of the part seat, the stop blocks are in contact with the edge of the lens supported on the part seat, the position of the stop blocks is adjusted through the first adjusting mechanism, the position of the lens is adjusted, the height of the stop blocks is adjusted through the second adjusting mechanism, and the lens with different thicknesses is processed. The stop block and the part seat are positioned from the edge and the spherical surface of the lens at the same time, and when the position of the stop block is adjusted to be symmetrically distributed about the central axis of the part seat, the mechanical center of the lens and the central axis of the part seat are positioned on the same vertical line. So set up, utilize this clamping device to adjust the back to the position of lens, the mechanical center of lens has adjusted, processes the back through the plane of lens grinding device to lens, need not to correct the central deviation of lens, has saved the cut edge process, has avoided because of the material waste that the cut edge caused, has avoided the cut edge in-process to take place to collapse useless, the problem that the shaping surface was scotched the fish tail.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a clamping device for processing a plano-convex lens or a plano-concave lens according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of a first adjusting mechanism and a second adjusting mechanism according to an embodiment of the present invention;

fig. 3 is a schematic structural diagram of a component seat according to an embodiment of the present invention;

fig. 4 is a schematic diagram illustrating a relative position between a lens and a component seat according to an embodiment of the present invention.

Reference numerals:

a lens-1; a part seat-2; a stop block-3; a support disc-4; a chute-5; bolt-6; a first nut-7; a second nut-8; a lock washer-9; scale mark-10; numerical marker-11; a base-12; a positioning column-13; mounting holes-14.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be described in detail below. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

The objective of the present embodiment is to provide a clamping device for processing a plano-convex lens or a plano-concave lens, which simultaneously acts on a spherical surface and an edge of the lens through a part seat and a plurality of stoppers, so that the lens is naturally aligned, the mechanical center of the lens and the axis of the part seat are ensured to be located on the same vertical line, and the edge cutting process after the spherical surface and the plane are processed is avoided.

Hereinafter, embodiments will be described with reference to the drawings. The embodiments described below do not limit the scope of the invention described in the claims. Further, the entire contents of the configurations shown in the following embodiments are not limited to those necessary as a solution of the invention described in the claims.

Referring to fig. 1-4, schematic structural views of a clamping device for machining a plano-convex lens or a plano-concave lens in some exemplary embodiments are shown. The clamping device for processing the plano-convex lens or the plano-concave lens provided by the embodiment is arranged below the lens grinding device, the lens 1 with a spherical surface processed in advance is clamped on the clamping device, and the plane of the lens 1 is processed by matching with the lens grinding device. The holding device comprises a part holder 2 for holding the lens 1 and a positioning assembly for positioning the lens 1. The upper end of the part seat 2 is in a hollow cylinder shape, the spherical side of the lens 1 is supported at the upper end of the part seat 2, when the lens 1 is a plano-convex lens, the spherical surface of the lens 1 is in line contact with the inner side edge of the upper end of the hollow cylinder, and when the lens 1 is a plano-concave lens, the spherical surface of the lens 1 is in contact with the outer side edge of the upper end of the hollow cylinder. Above-mentioned locating component includes a plurality of dog 3 that set up along 2 circumference of part seat, a first adjustment mechanism that is used for adjusting the distance between dog 3 and the part seat 2 and a second adjustment mechanism that is used for adjusting the distance between 3 upper ends of dog and the 2 upper ends of part seat, dog 3 and the edge contact of lens 1 who supports on part seat 2, adjust dog 3's position through first adjustment mechanism, thereby adjust lens 1's position, highly adjust dog 3 through second adjustment mechanism, in order to realize the processing to lens 1 of different thickness. The stop 3 and the part seat 2 are positioned from the edge and the spherical surface of the lens 1 at the same time, and when the position of the stop 3 is adjusted to be symmetrically distributed about the central axis of the part seat 2, the mechanical center of the lens 1 and the central axis of the part seat 2 are positioned on the same vertical line. So set up, utilize this clamping device to adjust the back to the position of lens 1, the mechanical center of lens 1 has been adjusted, processes the back through the plane of lens grinding device to lens 1, need not to correct the central deviation of lens 1, has saved the cut edge process, has avoided because of the material waste that the cut edge caused, has avoided the cut edge in-process to take place to collapse useless, the problem that the shaping surface was scotched the fish tail.

It should be noted that, the upper end of the axial cross section of the component seat 2 is arc-shaped, as shown in fig. 4, which can effectively prevent the spherical surface of the lens 1 from being scratched by the component seat 2 during the processing.

In this embodiment, a circular support plate 4 is disposed at the lower end of the component seat 2, the first adjusting mechanism includes a sliding slot 5 disposed on the upper surface of the support plate 4, the extending direction of the sliding slot 5 is consistent with the radial direction of the support plate 4, so that the stopper 3 slides relative to the support plate 4 to be close to or far away from the edge of the lens 1, as shown in fig. 2 to 3. A locking mechanism for limiting the sliding of the stopper 3 relative to the support plate 4 is further arranged between the support plate 4 and the stopper 3, and when the locking mechanism is in a first state, the stopper 3 can move relative to the support plate 4, so that the adjustment of the distance between the stopper 3 and the edge of the lens 1 is realized; when the locking mechanism is in the second state, the locking mechanism limits the relative movement between the stopper 3 and the support plate 4, the stopper 3 and the support plate 4 are relatively fixed, and when each stopper 3 is in contact with the edge of the lens 1, the positioning of the lens 1 can be realized.

Above-mentioned dog 3 and spout 5 all set up 4, and 4 spouts 5 are on supporting disk 4 and about the axis symmetric distribution of part seat 2, and when

processing lens

1, 4 dogs 3 of symmetric distribution extrude lens 1 of support on part seat 2 simultaneously for lens 1 is ajusted naturally.

In implementation, the depth direction of the sliding groove 5 penetrates through the supporting plate 4 along the vertical direction, the locking mechanism comprises a bolt 6 arranged along the vertical direction and a first nut 7 matched and connected with the bolt 6, the head of the bolt 6 is abutted against the lower surface of the supporting plate 4, the tail of the bolt 6 penetrates through the sliding groove 5 and then is connected with the stop block 3, wherein the first nut 7 is positioned between the support plate 4 and the stop block 3, the distance between the first nut 7 and the head of the bolt 6 is adjusted by rotating the first nut 7, when the first nut 7 is screwed, the head of the bolt 6 and the first nut 7 clamp the upper end surface and the lower end surface of the support plate 4, the bolt 6 and the stop block 3 are fixed relative to the support plate 4, when the first nut 7 is unscrewed, the distance between the head of the bolt 6 and the first nut 7 is larger than the thickness of the support plate 4, and the bolt 6 can drive the stop block 3 to slide randomly along the extending direction of the sliding groove 5. In this way, when the position of the stopper 3 is adjusted, the first nut 7 is loosened and the bolt 6 is slid, and after the position of the stopper 3 is adjusted, the first nut 7 is tightened.

Further, second adjustment mechanism is including setting up the blind hole at dog 3 lower extreme, and the afterbody of bolt 6 can stretch into to the blind hole inside, and the degree of depth that bolt 6 stretches into in the blind hole is different, and 3 upper ends of dog place height differences, the vertical distance between 3 upper ends of dog and the 2 upper ends of part seat decide the center thickness of lens 1. Through threaded connection between the afterbody of bolt 6 and dog 3, through making bolt 6 and dog 3 relative rotation, can adjust bolt 6 stretch into the inside length of dog 3 to the realization is to the regulation of the height of dog 3.

In implementation, an internal thread matched with the external thread on the bolt 6 can be arranged on the inner side wall of the blind hole, so that the threaded connection between the bolt 6 and the stop block 3 is realized.

Further, above-mentioned second adjustment mechanism still includes the second nut 8 of being connected with bolt 6 cooperation, and second nut 8 is located the lower extreme of dog 3, further reinforces the connection between bolt 6 and the dog 3 through screw-thread fit between second nut 8 and the bolt 6, prevents to become flexible.

In a preferable scheme of the embodiment, the anti-loose washers 9 are respectively arranged between the first nut 7 and the support plate 4 and between the second nut 8 and the stop block 3, and the loosening of the first nut 7 is prevented by the friction between the upper end face and the lower end face of the anti-loose washer 9 and between the first nut 7 and the support plate 4; the loosening of the second nut 8 is prevented by loosening the friction between the upper and lower end faces of the washer 9 and the second nut 8 and the stopper 3.

In a preferred embodiment, the supporting plate 4 is provided with scale marks 10 and numerical marks 11 for displaying the distance between the scale marks 10 and the central axis of the part seat 2 at the edge of the sliding groove 5, and the distance between the stop 3 and the central axis of the part seat 2 can be visually observed through the scale marks 10 and the numerical marks 11, so that the position of the stop 3 can be conveniently adjusted.

In implementation, in order to realize processing a plurality of lenses 1 simultaneously, can set up a plurality of part seats 2 and with the positioning component that part seat 2 cooperation was used, at this moment, this clamping device still includes base 12, fixes a plurality of part seats 2 on base 12. In the implementation, the lower end of the part seat 2 is provided with the positioning column 13 in an extending manner, the base 12 is provided with a plurality of mounting holes 14 for the positioning column 13 to be clamped in, the mounting holes 14 are uniformly distributed on the base 12, and the positioning columns 13 at the lower ends of the plurality of part seats 2 are respectively clamped in the mounting holes 14 of the base 12.

In the implementation, in order to improve the matching precision between the component seat 2 and the base 12 and reduce the gap between the outer side wall of the positioning column 13 and the inner side wall of the mounting hole 14, rosin wax may be filled between the positioning column 13 and the mounting hole 14.

The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A holding device for processing a plano-convex lens or a plano-concave lens, arranged below a lens (1) grinding device, comprising: a part holder (2) for holding a lens (1) and a positioning assembly for positioning the lens (1); the upper end of the part seat (2) is in a hollow cylindrical shape, and the spherical side of the lens (1) is supported at the upper end of the part seat (2); the positioning assembly comprises a plurality of stop blocks (3) arranged along the circumferential direction of the part seats (2), a first adjusting mechanism used for adjusting the distance between the stop blocks (3) and the part seats (2) and a second adjusting mechanism used for adjusting the distance between the upper ends of the stop blocks (3) and the upper ends of the part seats (2).

2. Clamping device according to claim 1, characterized in that the lower end of the component seat (2) is provided with a circular support disc (4), the first adjusting mechanism comprises a sliding slot (5) for the sliding of the stop (3) relative to the support disc (4) and a locking mechanism for limiting the sliding of the stop (3) relative to the support disc (4), the sliding slot (5) extends in a direction corresponding to the radial direction of the support disc (4), and the stop (3) is movable relative to the support disc (4) when the locking mechanism is in the first state; when the locking mechanism is in the second state, the stop block (3) and the support disc (4) are relatively fixed.

3. The clamping device according to claim 2, characterized in that the sliding groove (5) penetrates the support plate (4) in a vertical direction in a depth direction, the locking mechanism comprises a bolt (6) arranged in the vertical direction and a first nut (7) in fit connection with the bolt (6), the head of the bolt (6) abuts against the lower surface of the support plate (4), the first nut (7) is located above the support plate (4), and the tail of the bolt (6) is connected with the stop block (3).

4. A clamping device according to claim 3, characterized in that the second adjusting mechanism comprises a blind hole arranged at the lower end of the stop block (3), the tail part of the bolt (6) can extend into the blind hole, and the tail part of the bolt (6) is in threaded connection with the stop block (3).

5. Clamping device according to claim 4, characterized in that the second adjustment means further comprise a second nut (8) in a cooperating connection with the bolt (6), the second nut (8) being located at the lower end of the stop (3).

6. Clamping device according to claim 5, characterized in that a lock washer (9) is arranged between the first nut (7) and the support disc (4) and between the second nut (8) and the stop (3).

7. Clamping device according to claim 2, characterized in that the support disc (4) is provided with graduation marks (10) at the edge of the slide groove (5) and numerical markings (11) for indicating the distance between the graduation marks (10) and the central axis of the part holder (2).

8. The clamping device as recited in claim 1, further comprising a base (12), wherein the component seat (2) and the positioning assembly are provided in plurality, a positioning column (13) extends from a lower end of the component seat (2), and a plurality of mounting holes (14) for the positioning column (13) to be inserted are provided in the base (12).

9. Clamping device according to claim 8, characterized in that a rosin wax is filled between the positioning column (13) and the mounting hole (14).

10. Clamping device according to claim 8, characterized in that the mounting holes (14) are evenly distributed over the base (12).