An optical lens transmittance detection fixture

Abstract

The utility model provides a kind of detection fixture of optical lens light transmittance, it is related to lens detection technical field, including support seat, the support seat top fixed connection arc rail, be provided with two oppositely arranged motion box on the arc rail, the motion box bottom is provided with the vertical plate of being slidably connected with support seat, the vertical plate is equipped with guide slot, the guide slot is slidably connected with slider, the support seat top is rotatably connected with the two sliders screw connection two-way threaded rod, by setting the cooperation structure of two-way threaded rod, vertical plate, slider, arc rail, fixed block and motion box, the interval and angle of two motion box can be flexibly adjusted, two-way threaded rod rotation drives slider to slide in vertical plate guide slot, make vertical plate drive motion box to slide along arc rail by fixed block, different size, optical lens of camber can be adapted.

Description

Technical Field

[0001] This utility model relates to the field of lens testing technology, and in particular to a fixture for testing the transmittance of optical lenses. Background Technology

[0002] After undergoing a series of operations such as milling, edge grinding, polishing, cleaning, and fine grinding, optical lenses need to be tested for important parameters before leaving the factory.

[0003] For example, there is an unobstructed optical lens inspection fixture, with publication number CN219311120U. In use, the operator connects the lifting cylinder and the clamping plate adjusting cylinder to an external air pump. First, the operator turns on the switch of the clamping plate adjusting cylinder, raising the adjustable clamping plate to its highest position. Then, the operator places the optical lens to be inspected on the adjustable clamping plate and turns on the switch of the lifting cylinder, causing the upper clamp to move downward until it contacts and clamps the top surface of the optical lens. Afterward, the operator turns on the switch of the clamping plate adjusting cylinder again, lowering the adjustable clamping plate to its lowest position.

[0004] However, when using this testing fixture, the adjustable clamp cannot accommodate lenses of different thicknesses. If the size of the lens does not match the adjustable clamp, the lens may not be able to be placed on the adjustable clamp or may be tilted, making it impossible to clamp the lens smoothly. In particular, if the lens is tilted, it is easy to damage the lens when clamping it. Utility Model Content

[0005] The purpose of this invention is to solve the problems existing in the prior art by proposing a fixture for detecting the transmittance of optical lenses.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a fixture for detecting the transmittance of an optical lens, comprising a support base, an arc-shaped rail fixedly connected to the top of the support base, two opposing motion boxes arranged on the arc-shaped rail, a vertical plate slidably connected to the support base at the bottom of each motion box, a guide groove provided on the vertical plate, a slider slidably connected in the guide groove, a bidirectional threaded rod rotatably connected to the top of the support base and threadedly connected to the two sliders, openings on opposite sides of the two motion boxes, two conveyor wheels rotatably connected inside the motion boxes, a conveyor belt sleeved on the outside of the two conveyor wheels, a soft pad provided on the outside of the conveyor belt, an abutment block fixedly connected to the center of the opening, and the abutment block being disposed inside the conveyor belt.

[0007] Preferably, cleaning rollers for cleaning the pads are rotatably connected to both sides inside the motion box. The bottom ends of the cleaning rollers and the bottom ends of the conveyor wheel extend outward through the bottom wall of the motion box and are fixedly connected to gears. The gear at the bottom end of the cleaning roller meshes with the gear at the bottom end of the conveyor wheel.

[0008] Preferably, auxiliary wheels are rotatably connected inside the motion box and located on both sides of the contact block.

[0009] Preferably, the bottom of the motion box is fixedly connected to a fixing block, the fixing block has an arc-shaped groove, the fixing block is slidably connected to an arc-shaped rail through the arc-shaped groove, and the fixing block is hinged to the upright plate.

[0010] Preferably, a motor is fixedly installed on one side of the support base and the top of the motion box. The motor spindle located on one side of the support base is fixedly connected to one end of the bidirectional threaded rod, and the motor spindle located on the top of the motion box passes through the top wall of the motion box and is fixedly connected to one of the cleaning rollers.

[0011] Preferably, an electric push rod is fixedly connected to the top of the support base, and the electric push rod is located above the motion box with its telescopic end pointing downwards.

[0012] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0013] 1. In this utility model, by setting a cooperative structure of a bidirectional threaded rod, a vertical plate, a slider, an arc-shaped rail, a fixed block, and a motion box, the distance and angle between the two motion boxes can be flexibly adjusted. The rotation of the bidirectional threaded rod drives the slider to slide in the guide groove of the vertical plate, so that the vertical plate drives the motion box to slide along the arc-shaped rail through the fixed block, which can be adapted to optical lenses of different sizes and curvatures.

[0014] 2. In this utility model, the cleaning function is achieved by setting a linkage structure of conveyor belt, soft pad, cleaning roller, gear and auxiliary wheel. The soft pad on the outside of the conveyor belt can protect the lens. When the motor drives the cleaning roller to rotate, the gear transmission drives the conveyor wheel and the conveyor belt to operate. The cleaning roller can clean the soft pad in real time to avoid impurities from contaminating the lens. Attached Figure Description

[0015] Figure 1 A three-dimensional structural diagram of a fixture for detecting the transmittance of an optical lens is provided for this utility model.

[0016] Figure 2 This is a three-dimensional structural diagram of the motion box in this utility model;

[0017] Figure 3 In this utility model Figure 2 A schematic diagram of the three-dimensional structure viewed from below;

[0018] Figure 4 This is a top-section three-dimensional structural diagram of the motion box in this utility model.

[0019] Legend: 1. Support base; 2. Electric push rod; 3. Motion box; 4. Two-way threaded rod; 5. Arc-shaped rail; 6. Motor; 7. Vertical plate; 8. Slider; 9. Fixing block; 10. Gear; 11. Guide groove; 12. Arc-shaped groove; 13. Transmission wheel; 14. Cleaning roller; 15. Auxiliary wheel; 16. Conveyor belt; 17. Soft pad; 18. Abutment block; 19. Opening. Detailed Implementation

[0020] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0021] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0022] like Figure 1-4 As shown, an optical lens transmittance testing fixture includes a support base 1, an arc-shaped rail 5 fixedly connected to the top of the support base 1, two opposing motion boxes 3 arranged on the arc-shaped rail 5, a vertical plate 7 slidably connected to the bottom of the motion box 3 and the support base 1, a guide groove 11 is provided on the vertical plate 7, a slider 8 is slidably connected in the guide groove 11, a bidirectional threaded rod 4 threadedly connected to the two sliders 8 is rotatably connected to the top of the support base 1, an opening 19 is provided on the opposite side of the two motion boxes 3, two conveyor wheels 13 are rotatably connected in the motion box 3, a conveyor belt 16 is sleeved on the outside of the two conveyor wheels 13, a soft pad 17 is provided on the outside of the conveyor belt 16, an abutment block 18 is fixedly connected in the middle of the opening 19 and is located inside the conveyor belt 16.

[0023] In this technical solution, the distance between the two motion boxes 3 can be adjusted by rotating the bidirectional threaded rod 4 to accommodate optical lenses of different sizes. Specifically, when the bidirectional threaded rod 4 rotates, the two sliders 8 threadedly connected to the bidirectional threaded rod 4 will move relative to each other or away from each other, thereby driving the upright plate 7 and the motion box 3 to slide on the support base 1, so that the two motion boxes 3 move closer or further away from each other along the arc-shaped rail 5. During this process, the sliders 8 will slide in the guide groove 11. Furthermore, by setting the arc-shaped rail 5, when the motion box 3 moves to both ends of the arc-shaped rail 5, its height decreases so that it will not affect the detection of the optical lens.

[0024] When it is necessary to clamp the lens, place the lens between the two motion boxes 3, and bring the two motion boxes 3 closer by adjusting the bidirectional threaded rod 4. At this time, the soft pad 17 on the outer side of the conveyor belt 16 at the opening 19 on the opposite side of the motion box 3 will contact the lens. Since the abutment block 18 is located inside the conveyor belt 16, it can support the conveyor belt 16 and ensure that the soft pad 17 is in stable contact with the lens, thereby achieving the clamping of the lens.

[0025] Furthermore, by setting a conveyor belt 16, preferably a polyurethane synchronous belt, the movement of the conveyor belt 16 allows different positions of the conveyor belt 16 to contact the lens. When a portion of the pad 17 has impurities, the rotation of the conveyor belt 16 can move the cleaned portion of the pad 17 to contact the lens. In addition, the pad 17 is preferably a silicone pad.

[0026] like Figure 3 and Figure 4 As shown, cleaning rollers 14 for cleaning the pad 17 are rotatably connected to both sides inside the motion box 3. The bottom ends of the cleaning rollers 14 and the bottom ends of the conveyor wheels 13 extend outward through the bottom wall of the motion box 3 and are fixedly connected to gears 10. The gear 10 located at the bottom end of the cleaning rollers 14 meshes with the gear 10 located at the bottom end of the conveyor wheels 13. Auxiliary wheels 15 are rotatably connected inside the motion box 3 and located on both sides of the contact block 18.

[0027] In this technical solution, the cleaning roller 14 and the conveyor wheel 13 form a linkage structure through the meshing gear 10 at their bottom ends. When the conveyor wheel 13 rotates, it drives the cleaning roller 14 to rotate synchronously through the meshing transmission of the gear 10. This allows the cleaning roller 14 to wipe and clean the soft pad 17 on the outside of the conveyor belt 16, preventing dust and impurities on the surface of the soft pad 17 from affecting the stability of the lens clamping or contaminating the lens, thus ensuring the cleanliness of the clamping environment.

[0028] In addition, the auxiliary wheels 15 located on both sides of the contact block 18 inside the motion box 3 can provide auxiliary support and guidance for the conveyor belt 16. During the movement of the conveyor belt 16, the auxiliary wheels 15 guide it to pass smoothly through the side of the contact block 18.

[0029] like Figure 3 As shown, the bottom of the motion box 3 is fixedly connected to the fixing block 9. The fixing block 9 has an arc groove 12. The fixing block 9 is slidably connected to the arc rail 5 through the arc groove 12. The fixing block 9 is hinged to the upright plate 7.

[0030] In this technical solution, by setting the arc groove 12, an arc-shaped guide path is provided for the movement of the motion box 3. At the same time, the fixing block 9 is hinged to the upright plate 7, so that when the motion box 3 moves along the straight direction with the upright plate 7, it can adaptively adjust its position and angle along the arc trajectory through the sliding cooperation between the fixing block 9 and the arc rail 5 and the hinge relationship with the upright plate 7.

[0031] like Figure 1 Ring and Figure 2 As shown, a motor 6 is fixedly installed on one side of the support base 1 and the top of the motion box 3. The main shaft of the motor 6 located on one side of the support base 1 is fixedly connected to one end of the bidirectional threaded rod 4. The main shaft of the motor 6 located at the top of the motion box 3 passes through the top wall of the motion box 3 and is fixedly connected to one of the cleaning rollers 14.

[0032] In this technical solution, the motor 6 located on one side of the support base 1 has its main shaft fixedly connected to one end of the bidirectional threaded rod 4. When the motor 6 is started, it can directly drive the bidirectional threaded rod 4 to rotate. The motor 6 located at the top of the motion box 3 has its main shaft passing through the top wall of the motion box 3 and fixedly connected to one of the cleaning rollers 14. When the motor 6 is started, it can directly drive the corresponding cleaning roller 14 to rotate. The motor 6 is preferably a servo motor.

[0033] like Figure 1 As shown, an electric push rod 2 is fixedly connected to the top of the support base 1. The electric push rod 2 is located above the motion box 3 and its telescopic end is set downward.

[0034] In this technical solution, when the optical lens is held by the soft pads 17 on the two motion boxes 3, the electric push rod 2 located above the motion box 3 with its telescopic end facing downward can make its telescopic end contact the top of the lens through telescopic movement.

[0035] The method of using this utility model is as follows: the optical lens to be tested is placed between two motion boxes 3, with its bottom end contacting the arc apex of the arc-shaped rail 5. Then, the motor 6 on one side of the support base 1 drives the bidirectional threaded rod 4 to rotate, causing the two sliders 8 to move relative to each other in the guide groove 11 of the upright plate 7. This causes the upright plate 7 and the motion box 3 to move closer to each other along the arc-shaped rail 5 through the arc-shaped groove 12 of the fixing block 9. Meanwhile, the motor 6 at the top of the motion box 3 drives the cleaning roller 14 to rotate, which drives the transmission wheel 13 and the transmission belt 16 to rotate through the meshing transmission of the gear 10. The auxiliary wheel 15 assists the conveyor belt 16 to move smoothly, so that the cleaned soft pad 17 comes into contact with the lens until the soft pad 17 on the outside of the conveyor belt 16 at the opening 19 of the motion box 3 comes into contact with the lens. Stable clamping is achieved with the support of the abutment block 18. Then, the electric push rod 2 is activated so that its telescopic end contacts the top of the lens for auxiliary fixing. After fixing is completed, the motor 6 on one side of the support base 1 drives the bidirectional threaded rod 4 to reverse, so that the two motion boxes 3 move away from each other. At this time, the optical lens is in a state of being clamped and fixed by the electric push rod 2 and the arc-shaped rail 5.

[0036] The wiring diagrams of the motor 6 and electric push rod 2 in this utility model are common knowledge in the field, and their working principle is a well-known technology. The appropriate model is selected according to actual use. Therefore, the control method and wiring layout of the motor 6 and electric push rod 2 will not be explained in detail.

[0037] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the present utility model.

Claims

1. A fixture for detecting the transmittance of an optical lens, comprising a support base (1), characterized in that: The top of the support base (1) is fixedly connected to an arc-shaped rail (5). Two opposing motion boxes (3) are provided on the arc-shaped rail (5). The bottom of the motion box (3) is provided with a vertical plate (7) that is slidably connected to the support base (1). A guide groove (11) is provided on the vertical plate (7). A slider (8) is slidably connected in the guide groove (11). The top of the support base (1) is rotatably connected to a bidirectional threaded rod (4) that is threadedly connected to the two sliders (8). An opening (19) is provided on the opposite side of the two motion boxes (3). Two conveyor wheels (13) are rotatably connected inside the motion box (3). A conveyor belt (16) is sleeved on the outside of the two conveyor wheels (13). A soft pad (17) is provided on the outside of the conveyor belt (16). An abutment block (18) is fixedly connected in the middle of the opening (19). The abutment block (18) is located inside the conveyor belt (16).

2. The optical lens transmittance testing fixture according to claim 1, characterized in that: The inner sides of the motion box (3) are rotatably connected to cleaning rollers (14) for cleaning the soft pad (17). The bottom end of the cleaning roller (14) and the bottom end of the conveyor wheel (13) extend outward through the bottom wall of the motion box (3) and are fixedly connected to gears (10). The gear (10) located at the bottom end of the cleaning roller (14) meshes with the gear (10) located at the bottom end of the conveyor wheel (13).

3. The optical lens transmittance testing fixture according to claim 1, characterized in that: The motion box (3) is rotatably connected to auxiliary wheels (15) located inside and on both sides of the contact block (18).

4. The optical lens transmittance testing fixture according to claim 1, characterized in that: The bottom of the motion box (3) is fixedly connected to the fixing block (9). The fixing block (9) has an arc groove (12) inside. The fixing block (9) is slidably connected to the arc rail (5) through the arc groove (12). The fixing block (9) is hinged to the upright plate (7).

5. The optical lens transmittance testing fixture according to claim 1, characterized in that: A motor (6) is fixedly installed on one side of the support base (1) and the top of the motion box (3). The main shaft of the motor (6) located on one side of the support base (1) is fixedly connected to one end of the bidirectional threaded rod (4). The main shaft of the motor (6) located on the top of the motion box (3) passes through the top wall of the motion box (3) and is fixedly connected to one of the cleaning rollers (14).

6. The optical lens transmittance testing fixture according to claim 1, characterized in that: An electric push rod (2) is fixedly connected to the top of the support base (1). The electric push rod (2) is located above the motion box (3) and its telescopic end is set downward.

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