Jig for lens processing

Abstract

The utility model discloses a lens processing jig which comprises a workpiece table and side frames fixed to the left outer wall and the right outer wall of the workpiece table, supporting plates are fixed to one ends of the surfaces of the side frames, an air cylinder is installed on the outer wall of the side, away from the side frames, of one supporting plate, and a transverse base is installed at the bottom end of a piston rod of the air cylinder. An upper pressing plate is fixed to the bottom ends of the two transverse seats, a lower jig plate is installed at the top end of the workpiece table, and a plurality of bowl-shaped downward concave parts extending downwards are arranged in the lower jig plate. According to the utility model, the lens can be uniformly stressed and kept in a stable processing state in the processing process, the bowl-shaped concave part of the lower jig plate can comprehensively support the lens, the deformation of the lens caused by non-uniform local stress is avoided, and the upper pressing plate is driven by the air cylinder to move downwards and approach the lower jig plate, so that the processing efficiency is improved. At the moment, the cutting hole with the outer diameter gradually reduced from bottom to top can adaptively adjust the applied force according to the outer diameter of the lens.

Description

TECHNICAL FIELD

[0001] The utility model relates to jig technical field, concretely is a jig for lens processing. BACKGROUND

[0002] The jig for lens processing plays a crucial role in the lens manufacturing process, mainly reflected in fixing, positioning and supporting the lens to ensure its precision and stability during processing. The jig ensures that the lens always maintains the correct position and angle, avoiding displacement or tilting, thereby improving the precision of processing and ensuring the quality of the final product. The structure of the lens processing jig is usually composed of a base, positioning clamps, adjustment devices, guide devices and support parts. The base provides support and is designed with adjustment function, the positioning clamps ensure that the lens does not shift during processing, the adjustment devices allow accurate adjustment of the angle and position of the lens, the guide devices help the lens move along a specific trajectory, and the support parts prevent the lens from deforming. The design of the jig is based on the principles of mechanics and materials science, and uses positioning principles to ensure the accurate position of the lens. For example, the dustproof jig for lens processing disclosed in the authorized announcement No. CN212859199U includes a base plate, a plurality of accommodation parts for accommodating lenses are formed on the base plate, a recess is formed at the opposite angle of the accommodation part, a rotating mechanism is arranged in the recess, a fan-shaped limiting part is arranged on the rotating mechanism, the accommodation part has a first state for accommodating a circular lens and a second state for accommodating a square lens, and when the rotating mechanism drives the fan-shaped limiting part to rotate to the accommodation part and the arc surface of the fan-shaped limiting part faces the center of the accommodation part, the accommodation part is in the first state. The accommodation part, recess, rotating mechanism and fan-shaped limiting part are arranged, and when the arc surface of the fan-shaped limiting part faces the center of the accommodation part by driving the rotating mechanism, the accommodation part can accommodate a circular lens. However, the above technical solution mainly uses the rotation of the fan-shaped limiting part to abut and limit the outer wall of the circular lens during use, that is, the outer edge of the circular lens is subjected to two abutting forces in opposite directions. At this time, the lens is prone to local stress during processing, specifically, the remaining edge positions of the circular lens are not effectively limited and supported, which may cause the lens to deform due to uneven force during processing, especially in some high-precision processing processes, the deformation of the lens often leads to processing errors, thereby affecting the quality of the product. SUMMARY

[0003] The utility model discloses a purpose lies in provide a kind of jig for lens processing, the lens to be positioned is placed in the bowl type lower concave portion of lower jig plate, utilize cylinder to drive the lower jig plate of upper pressing plate with cutout hole close to workpiece table top end, cutout hole gradually reduces from the outer diameter upwards, so that when upper pressing plate, lower jig plate contact, upper pressing plate can evenly force to the edge of lens and make lens press in the bowl type lower concave portion of lower jig plate, and keep processing stable, to solve the problem presented in the above background art.

[0004] To achieve the above object, the utility model provides the following technical scheme: a kind of jig for lens processing, including workpiece table and the side frame fixed on the left and right outer wall of workpiece table, and one end of the surface of side frame is fixed with support plate, and one of the support plate is installed with cylinder on the outer wall of side away from side frame, and the piston rod bottom end of the cylinder is installed with cross seat, the bottom end of two cross seats is fixed with upper pressing plate, the top end of workpiece table is installed with lower jig plate, the inside of lower jig plate is provided with several bowl type lower concave portions extending downwards, the inside of upper pressing plate is provided with cutout hole and bowl type lower concave portion mutually concentric, the diameter of cutout hole decreases in turn from bottom to top.

[0005] Preferably, the maximum diameter of the cutout hole is equal to the diameter of the edge position at the top of the bowl type lower concave portion.

[0006] Preferably, the cutout hole and the bowl type lower concave portion are equally spaced eight on the same X-axis extension line of the upper pressing plate and the lower jig plate.

[0007] Preferably, the upper pressing plate and the lower jig plate are made of alloy steel material.

[0008] Preferably, two symmetrical guide bars are fixed on the outer wall of the side away from the workpiece table of the support plate, and a C-shaped sleeve is fixed on the back of the cross seat for sliding fit with the guide bar.

[0009] Preferably, two rectangular hollow parts are provided on one side of the surface of the upper pressing plate.

[0010] Compared with the prior art, the beneficial effects of the utility model are that: the jig for lens processing is cooperated with the upper pressing plate, the lower jig plate, the bowl-shaped lower recess and other structures, so that the lens can be uniformly stressed and kept in a stable processing state during the processing, the bowl-shaped lower recess of the lower jig plate can support the lens comprehensively, and the deformation of the lens caused by uneven stress is avoided, the upper pressing plate is driven to move downward and close to the lower jig plate by the air cylinder, the cutting hole with gradually decreasing outer diameter from bottom to top can be adaptively adjusted according to the outer diameter size of the lens, the edge of the lens is subjected to uniform pressing force, the displacement of the lens can be prevented, and the deformation caused by excessive force concentrated in a certain place can be effectively avoided, so that the stability of the lens during the whole processing process is kept, and the precision and consistency of the lens processing are improved. BRIEF DESCRIPTION OF DRAWINGS

[0011] Figure 1 It is a front view structural schematic diagram of the utility model;

[0012] Figure 2 It is a side view structural schematic diagram of the utility model;

[0013] Figure 3 It is a three-dimensional structural schematic diagram of the utility model Figure 1 ;

[0014] Figure 4 It is a three-dimensional structural schematic diagram of the utility model Figure 2 ;

[0015] Figure 5 It is a lower jig plate front view cross section structural schematic diagram of the utility model.

[0016] In the drawing: 1, workpiece table; 2, side frame; 3, support plate; 301, guide bar; 302, C port sliding sleeve; 4, air cylinder; 5, horizontal seat; 6, upper pressing plate; 7, cutting hole; 8, lower jig plate; 9, bowl-shaped lower recess. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor fall within the protection scope of the utility model.

[0018] Please refer to Figures 1-5The utility model provides an embodiment: a jig for lens processing, including workpiece table 1 and the side frame 2 of fixed on workpiece table 1 left and right outer wall, and one end fixed with support plate 3 on the surface of side frame 2, wherein one support plate 3 is installed with cylinder 4 on the outer wall of the side away from side frame 2, and the piston rod bottom end of cylinder 4 is installed with horizontal seat 5, and the bottom end of two horizontal seats 5 is fixed with upper pressing plate 6, and the top of workpiece table 1 is installed with lower jig plate 8, and the inside of lower jig plate 8 is provided with a plurality of downward extending bowl type lower concave part 9, and the inside of upper pressing plate 6 is provided with the resection hole 7 of mutual concentricity with bowl type lower concave part 9, and the diameter of resection hole 7 gradually decreases from bottom to top in turn;

[0019] The maximum diameter of resection hole 7 is equal to the diameter of the top edge position of bowl type lower concave part 9, and eight are provided on the same X-axis extension line of upper pressing plate 6 and lower jig plate 8 with equal spacing;

[0020] The shape of bowl type lower concave part 9 is to better match the form of lens, so that it can achieve the best supporting effect when placing, at this time, the outer edge of the lens uniformly adheres along the inner edge of the bowl type concave part, ensuring the preliminary stability of the lens;

[0021] One side of the surface of upper pressing plate 6 is provided with two rectangular hollow parts, and upper pressing plate 6 and lower jig plate 8 are made of alloy steel material, so that upper pressing plate 6 can change with the different outer diameters of lenses, and can uniformly apply pressure to the edge of the lens at each stage, so that lenses of different sizes can be processed in the same jig without the need to replace upper pressing plate 6 or lower jig plate 8 of different specifications, thereby reducing the complexity of operation and improving production efficiency;

[0022] Two symmetrical guide strips 301 are fixed on the outer wall of the side away from workpiece table 1 of support plate 3, and a C-shaped sleeve 302 for sliding fit with guide strip 301 is fixed on the back of horizontal seat 5, guide strip 301 and C-shaped sleeve 302 are in sliding fit, and guide strip 301 and C-shaped sleeve 302 guide and support the lifting and sliding of horizontal seat 5 and upper pressing plate 6;

[0023] Cylinder 4 drives horizontal seat 5 and upper pressing plate 6 to move downward, and during the entire processing, the displacement, inclination and deformation of the lens are effectively inhibited, ensuring the processing accuracy.

[0024] The embodiment of the present application is used in the occasion of processing the concave side of a circular lens. At the beginning of the operation, the lens is placed in the bowl-shaped lower recess 9 of the lower jig plate 8, at this time, the convex outer surface of the circular lens faces downward and is placed into the bowl-shaped lower recess 9, and the concave side of the circular lens faces upward and is aligned with the upper pressing plate 6, so as to ensure that the central part of the lens can be effectively supported. After each lens is accurately placed in the bowl-shaped lower recess 9 of the lower jig plate 8, the operation enters the next stage. The worker drives the upper pressing plate 6 to gradually move downward through the cylinder 4. The extension and retraction action of the cylinder 4 is realized by controlling the air pressure of the external compressed air source, so as to ensure that the descending speed of the upper pressing plate 6 is stable and controllable. The shape of the cutout hole 7 is a circular shape with a wide lower part and a narrow upper part. When the cylinder 4 drives the upper pressing plate 6 to descend, the lower edge of the cutout hole 7 first contacts the edge of the lens. With the continuous descent of the upper pressing plate 6, the outer diameter of the cutout hole 7 gradually decreases, so that the contact area between the upper pressing plate 6 and the lens gradually increases and finally covers the entire edge area of the lens. In this process, the edge of the lens is gradually subjected to uniform pressure, and the uniform pressure distribution ensures that the edge of the lens is sufficiently pressed and avoids excessive concentration of pressure on a certain position, preventing possible warping or deformation of the lens. At this time, the external processing equipment can process the concave surface of the circular lens. It is particularly suitable for processes with very high precision requirements in lens processing, such as cutting, polishing or coating.

[0025] It is obvious for those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or essential characteristics of the present application. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting, and the scope of the present application is defined by the appended claims rather than the above description, and therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application. Any reference signs in the claims should not be regarded as limiting the claims involved.

Claims

1. A jig for lens processing, characterized by: The utility model provides a workpiece table and the side frame (2) fixed on the left and right outer walls of workpiece table (1), and one end of the surface of side frame (2) is fixed with support plate (3), one of support plate (3) is installed with air cylinder (4) on the outer wall of the side away from side frame (2), and the bottom end of the piston rod of air cylinder (4) is installed with cross seat (5), and the bottom end of two cross seats (5) is fixed with upper pressing plate (6), the top of workpiece table (1) is installed with lower jig plate (8), the inside of lower jig plate (8) is provided with a plurality of downward extending bowl type lower recess (9), the inside of upper pressing plate (6) is provided with cutout hole (7) and bowl type lower recess (9) each other concentric, the diameter of cutout hole (7) decreases gradually from bottom to top.

2. The lens processing jig according to claim 1, wherein: The maximum diameter of the cutout hole (7) is equal to the diameter of the top edge of the bowl type lower recess (9).

3. The lens processing jig of claim 1, wherein: The cutout hole (7) and the bowl type lower recess (9) are arranged at equal intervals on the same X-axis extension line of the upper pressing plate (6) and the lower jig plate (8).

4. The lens processing jig of claim 1, wherein: The upper pressing plate (6) and the lower jig plate (8) are made of alloy steel material.

5. The lens processing jig of claim 1, wherein: Two symmetrical guide bars (301) are fixed on the outer wall of the side away from the workpiece table (1) of the support plate (3).

6. The lens processing jig of claim 1, wherein: Two rectangular hollow parts are arranged on one side of the surface of the upper pressing plate (6).

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