A clamping device for detecting aspherical lenses

Abstract

The utility model discloses a kind of clamping devices for aspheric lens detection, applied in lens detection field, including clamping table, the inner wall rotation sleeve of clamping table is connected with rotating shaft, the surface rotation sleeve of rotating shaft is connected with carousel, the surface of carousel is equipped with three guide slots;The utility model rotates carousel by rotating rotating head and makes carousel drive guide slot rotation, guide slot rotation makes transmission block move along guide slot, makes transmission rod drive clamping plate to move and clamp lens, worm gear self-locking is fixed in its mode, can reach the purpose of clamping different size lens, reduce use cost, improve applicability and detection efficiency, the utility model moves slide rod by pulling pull block and making pull rod drive, slide rod moves and drives clamping joint and clamping hole to disengage, the mode that rubber pad is taken down and replaced, can reach the purpose that rubber pad is conveniently replaced, reduce workload, improve the efficiency of replacement.

Description

Technical Field

[0001] This utility model relates to the field of lens inspection, and in particular to a clamping device for inspecting aspherical lenses. Background Technology

[0002] Aspherical lenses possess excellent optical properties, effectively eliminating aberrations such as spherical and coma, and improving image quality. Therefore, they are widely used in numerous fields, including cameras, telescopes, microscopes, laser equipment, and medical instruments. With continuous technological advancements, the precision requirements for aspherical lenses are becoming increasingly stringent, making their inspection particularly important. During the inspection of aspherical lenses, the lenses must be stably clamped to ensure the accuracy of the test results.

[0003] A search of Chinese patents revealed publication number CN219777049U, which discloses a lens inspection fixture. The fixture includes a clamping assembly with a first reference surface, a second reference surface, and at least one spatially adjustable limiting plate. The first reference surface contacts the outer contour surface of the lens module to form a first contact point; the second reference surface contacts the outer contour surface of the lens module to form a second contact point; and the limiting plate contacts the outer contour surface of the lens module to form a third contact point. The first, second, and third contact points are located in the same plane. This invention has the advantages of simple structure and high repeatability, improving the repeatability of positioning after manually clamping eyeglass lenses.

[0004] Existing clamping devices cannot clamp lenses of different sizes. Most clamping devices can only clamp aspherical lenses of specific sizes, resulting in poor versatility. Due to the diverse specifications of aspherical lenses, different application scenarios require lenses of different sizes and curvatures. This necessitates that inspection personnel be equipped with multiple clamping devices and change clamps according to the size of the lens during use. This not only increases costs but also reduces inspection efficiency and makes it inconvenient to replace rubber pads. Generally, clamping plates are equipped with rubber pads to protect the lens, and these rubber pads are usually fixed with bolts or glue. Replacing them requires tools for disassembly and assembly, which is cumbersome, increases workload, and reduces replacement efficiency. To solve the above problems, we propose a clamping device for aspherical lens inspection. Utility Model Content

[0005] The purpose of this invention is to provide a clamping device for testing aspherical lenses, which has the advantages of being able to clamp lenses of different sizes and facilitating the replacement of rubber pads.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a clamping device for aspherical lens testing, comprising a clamping platform, a rotating shaft rotatably sleeved on the inner wall of the clamping platform, a turntable rotatably sleeved on the surface of the rotating shaft, three guide grooves on the surface of the turntable, a transmission block slidably connected to the inner wall of the guide grooves, a transmission rod bolted to the bottom of the transmission block, and the transmission rod slidably connected to the inner wall of the clamping platform, a fixed shell bolted to the bottom of the clamping platform, a worm gear rotatably sleeved between the inner walls of the fixed shell, a worm wheel meshing on the surface of the worm gear, and the axis of the worm wheel being fixedly sleeved with the surface of the rotating shaft.

[0007] By adopting the above technical solution, the rotating head causes the turntable to rotate, which in turn causes the guide groove to rotate. The rotation of the guide groove causes the transmission block to move along the guide groove, which in turn causes the transmission rod to move the clamping plate to clamp the lens. The worm gear self-locks and fixes it, which can achieve the purpose of clamping lenses of different sizes, reduce the cost of use, and improve the applicability and testing efficiency.

[0008] The present invention is further configured such that: a clamping plate is bolted to the other end of the transmission rod; two mounting rods are slidably sleeved on the inner wall of the clamping plate; a rubber pad is bolted to one end of each mounting rod; a sliding rod is slidably connected to the inner wall of the clamping plate; a snap-fit ​​connector is bolted to the surface of the sliding rod; a snap-fit ​​hole is provided on the surface of the mounting rod, and the snap-fit ​​hole snaps into the snap-fit ​​connector; a spring is provided between the sliding rod and the inner wall of the clamping plate; and a pull rod is bolted to the top of the sliding rod.

[0009] By adopting the above technical solution, the pull rod is moved by pulling the pull block, which causes the slide rod to move. The movement of the slide rod causes the snap-fit ​​connector to disengage from the snap-fit ​​hole, allowing the rubber pad to be removed and replaced. This method facilitates the replacement of the rubber pad, reduces workload, and improves replacement efficiency.

[0010] The present invention is further configured such that: a fixed seat is bolted to the bottom of the clamping platform, and the inner wall of the fixed seat is rotatably sleeved with the surface of the worm gear, and the surface of the fixed seat is provided with multiple mounting holes.

[0011] The above technical solution facilitates installation and fixation by providing a mounting base and mounting holes.

[0012] The present invention is further configured such that a rotating head is bolted to one end of the worm gear.

[0013] By adopting the above technical solution, a rotating head is set up to facilitate the rotation of the worm gear, thereby making clamping easier.

[0014] The present invention is further configured such that a pull block is bolted to the top of the pull rod.

[0015] By adopting the above technical solution, the pull rod can be moved easily by setting up a pull block.

[0016] The present invention is further configured such that one end of the card connector is wedge-shaped.

[0017] By adopting the above technical solution, one end of the snap-fit ​​connector is wedge-shaped, which facilitates the installation of the rubber pad.

[0018] The present invention is further configured such that the surface of the clamping platform is printed with scale lines.

[0019] By adopting the above technical solution and setting scale lines, the size can be easily adjusted.

[0020] The present invention is further configured such that the surface of the clamping plate is provided with a groove.

[0021] By adopting the above technical solution, the rubber pad can be easily removed by setting a groove.

[0022] In summary, this utility model has the following beneficial effects:

[0023] 1. This utility model uses a rotating head to make the turntable rotate, which in turn drives the guide groove to rotate. The rotation of the guide groove causes the transmission block to move along the guide groove, which in turn causes the transmission rod to move the clamping plate to clamp the lens. The worm gear self-locks and fixes it, which can achieve the purpose of clamping lenses of different sizes, reduce the cost of use, and improve the applicability and testing efficiency.

[0024] 2. This utility model achieves the purpose of convenient rubber pad replacement by pulling the pull block to move the pull rod and the slide rod, and the movement of the slide rod causes the snap-fit ​​connector to disengage from the snap-fit ​​hole, so that the rubber pad can be removed and replaced. This reduces the workload and improves the replacement efficiency. Attached Figure Description

[0025] Figure 1 This is a three-dimensional structural view of the present invention;

[0026] Figure 2 This is a partial three-dimensional structural view of the present invention;

[0027] Figure 3 This is a partial three-dimensional cross-sectional view of the structure of this utility model;

[0028] Figure 4 This is a three-dimensional cross-sectional view of a partial structure of this utility model.

[0029] Reference numerals: 1. Clamping platform; 2. Rotating shaft; 3. Turntable; 4. Guide groove; 5. Transmission block; 6. Transmission rod; 7. Fixed shell; 8. Worm gear; 9. Worm wheel; 10. Clamping plate; 11. Mounting rod; 12. Rubber pad; 13. Slide rod; 14. Snap connector; 15. Snap hole; 16. Spring; 17. Pull rod; 18. Fixed seat; 19. Mounting hole; 20. Rotating head; 21. Pull block; 22. Scale line; 23. Groove. Detailed Implementation

[0030] The present invention will be further described in detail below with reference to the accompanying drawings.

[0031] Example 1:

[0032] refer to Figure 1 , Figure 2 and Figure 3 A clamping device for inspecting aspherical lenses includes a clamping platform 1. A rotating shaft 2 is rotatably sleeved on the inner wall of the clamping platform 1. A turntable 3 is rotatably sleeved on the surface of the rotating shaft 2. Three guide grooves 4 are formed on the surface of the turntable 3. A transmission block 5 is slidably connected to the inner wall of the guide grooves 4. A transmission rod 6 is bolted to the bottom of the transmission block 5 and is slidably connected to the inner wall of the clamping platform 1. A fixed shell 7 is bolted to the bottom of the clamping platform 1. A worm gear 8 is rotatably sleeved between the inner walls of the fixed shell 7. A worm wheel 9 meshes with the surface of the worm gear 8, and the axis of the worm wheel 9 is fixedly sleeved with the surface of the rotating shaft 2. By rotating the rotating head 20, the turntable 3 drives the guide grooves 4 to rotate. The rotation of the guide grooves 4 causes the transmission block 5 to move along the guide grooves 4, which in turn causes the transmission rod 6 to move the clamping plate 10 to clamp the lens. The worm wheel 9 and worm gear 8 lock the lens in place. This method can clamp lenses of different sizes, reduce the cost of use, and improve applicability and inspection efficiency.

[0033] refer to Figure 1 A fixed seat 18 is bolted to the bottom of the clamping platform 1, and the inner wall of the fixed seat 18 is rotatably sleeved with the surface of the worm 8. Multiple mounting holes 19 are opened on the surface of the fixed seat 18. By setting the fixed seat 18 and the mounting holes 19, it is easy to install and fix.

[0034] refer to Figure 1 , Figure 2 and Figure 3 A rotating head 20 is bolted to one end of the worm 8. By setting the rotating head 20, it is easy to rotate the worm 8, thereby facilitating clamping.

[0035] refer to Figure 1 The surface of the clamping platform 1 is printed with scale lines 22, which facilitates size adjustment.

[0036] Example 2:

[0037] refer to Figure 1 and Figure 4The other end of the transmission rod 6 is bolted to a clamping plate 10. Two mounting rods 11 are slidably sleeved on the inner wall of the clamping plate 10. A rubber pad 12 is bolted to one end of the mounting rod 11. A slide rod 13 is slidably connected to the inner wall of the clamping plate 10. A snap-fit ​​connector 14 is bolted to the surface of the slide rod 13. A snap-fit ​​hole 15 is opened on the surface of the mounting rod 11, and the snap-fit ​​hole 15 snaps with the snap-fit ​​connector 14. A spring 16 is provided between the slide rod 13 and the inner wall of the clamping plate 10. A pull rod 17 is bolted to the top of the slide rod 13. By pulling the pull block 21, the pull rod 17 drives the slide rod 13 to move. The movement of the slide rod 13 causes the snap-fit ​​connector 14 to disengage from the snap-fit ​​hole 15, allowing the rubber pad 12 to be removed and replaced. This method facilitates the replacement of the rubber pad 12, reduces workload, and improves replacement efficiency.

[0038] refer to Figure 1 and Figure 4 A pull block 21 is bolted to the top of the pull rod 17, which facilitates the movement of the pull rod 17.

[0039] refer to Figure 4 One end of the snap-fit ​​connector 14 is wedge-shaped, which facilitates the installation of the rubber pad 12.

[0040] refer to Figure 1 The surface of the clamping plate 10 is provided with a groove 23, which makes it easy to remove the rubber pad 12.

[0041] Brief description of the usage process: The device is bolted to the bottom of the inspection lens. The lens is then placed between the clamping plates 10. Rotating the rotating head 20 causes the worm gear 8 to rotate, which in turn rotates the worm wheel 9. The worm wheel 9 then rotates the rotating shaft 2, which in turn rotates the turntable 3. The turntable 3 then rotates the guide groove 4, causing the transmission block 5 to move. This movement of the transmission block 5 moves the transmission rod 6, which in turn moves the clamping plate 10, clamping the lens. The worm wheel 9 and worm gear 8 are self-locking to prevent loosening. Inspection is then performed. Because the guide groove 4 is designed with an incline, the lens is securely clamped. This allows the transmission block 5 to move a certain distance, thus enabling it to clamp lenses of different sizes. Pulling the pull block 21 moves the pull rod 17, which in turn moves the slide rod 13, which in turn moves the snap-fit ​​connector 14. The snap-fit ​​connector 14 disengages from the snap-fit ​​hole 15, allowing the rubber pad 12 to be removed. The mounting rod 11 on the new rubber pad 12 is then inserted into the clamping plate 10. Under the action of the spring 16, the slide rod 13 causes the snap-fit ​​connector 14 to engage with the snap-fit ​​hole 15, securing it in place. This completes the replacement process, facilitating the replacement of the rubber pad 12.

[0042] It should be noted that parts have a lifespan and can be replaced during regular maintenance when they no longer meet performance requirements. Deterioration in performance due to prolonged use of parts is not a design defect of this application.

[0043] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.

Claims

1. A clamping device for testing aspherical lenses, comprising a clamping stage (1), characterized in that, The inner wall of the clamping platform (1) is rotatably sleeved with a rotating shaft (2), and the surface of the rotating shaft (2) is rotatably sleeved with a turntable (3). The surface of the turntable (3) is provided with three guide grooves (4). The inner wall of the guide grooves (4) is slidably connected with a transmission block (5). The bottom of the transmission block (5) is bolted with a transmission rod (6), and the transmission rod (6) is slidably connected to the inner wall of the clamping platform (1). The bottom of the clamping platform (1) is bolted with a fixed shell (7), and the inner walls of the fixed shell (7) are rotatably sleeved with a worm gear (8). The surface of the worm gear (8) is meshed with a worm wheel (9), and the axis of the worm wheel (9) is fixedly sleeved with the surface of the rotating shaft (2).

2. The clamping device for aspherical lens testing according to claim 1, characterized in that, The other end of the transmission rod (6) is bolted to a clamping plate (10). Two mounting rods (11) are slidably sleeved on the inner wall of the clamping plate (10). One end of the mounting rod (11) is bolted to a rubber pad (12). The inner wall of the clamping plate (10) is slidably connected to a slide rod (13). A snap-fit ​​connector (14) is bolted to the surface of the slide rod (13). A snap-fit ​​hole (15) is opened on the surface of the mounting rod (11), and the snap-fit ​​hole (15) snaps into the snap-fit ​​connector (14). A spring (16) is provided between the slide rod (13) and the inner wall of the clamping plate (10). A pull rod (17) is bolted to the top of the slide rod (13).

3. The clamping device for aspherical lens testing according to claim 1, characterized in that, The bottom of the clamping platform (1) is bolted with a fixed seat (18), and the inner wall of the fixed seat (18) is rotatably sleeved with the surface of the worm (8). The surface of the fixed seat (18) is provided with multiple mounting holes (19).

4. The clamping device for aspherical lens testing according to claim 1, characterized in that, A rotating head (20) is bolted to one end of the worm (8).

5. The clamping device for aspherical lens testing according to claim 2, characterized in that, A pull block (21) is bolted to the top of the pull rod (17).

6. The clamping device for aspherical lens testing according to claim 2, characterized in that, One end of the snap-fit ​​connector (14) is wedge-shaped.

7. The clamping device for aspherical lens testing according to claim 1, characterized in that, The surface of the clamping stage (1) is printed with scale lines (22).

8. The clamping device for aspherical lens testing according to claim 2, characterized in that, The surface of the clamping plate (10) is provided with a groove (23).

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