A jig for testing radial strength of a lens

Abstract

The utility model provides a kind of test lens radial strength's fixture.The test lens radial strength's fixture includes: the test platform is installed in the top of mounting chassis, the top of the test platform is equipped with mounting bracket, the top of the mounting bracket is equipped with first telescopic component, the top of the test platform is close to the position of front and back and is equipped with second telescopic component, the telescopic end of first telescopic component and second telescopic component is equipped with elastic component, the other end of elastic component is fixedly connected with movable plate, the other end of movable plate is fixedly connected with first pressure monitoring component, the other end of first pressure monitoring component is fixedly connected with side docking frame.The utility model provides test lens radial strength's fixture, by the design, positioning can be carried out from the surface of lens at the same time radial strength test is carried out, contact area with lens is increased, and it is favorable to improve the accuracy of lens radial strength test.

Description

Technical Field

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

[0002] A lens is a core optical component composed of one or more optical lenses. It is widely used in devices such as cameras, mobile phones, microscopes, and telescopes. Its core function is to converge or refract light. By adjusting parameters such as focal length and aperture, it controls the sharpness, brightness, angle of view, and depth of field of the image. Different types of lenses are suitable for different scenarios. For example, wide-angle lenses are suitable for shooting large scenes, while telephoto lenses are good at shooting at long distances. Their optical design and materials directly determine the resolution and image quality of the final image.

[0003] The radial strength test of a lens is a key mechanical performance test for lenses, focusing on the lens's resistance to damage and stability under radial force. In the test, a uniform or instantaneous radial load is applied to the lens body and surrounding components using specialized equipment to simulate real-world scenarios such as assembly compression and transportation collisions. The test monitors indicators such as lens deformation, crack threshold, and changes in optical parameters. The fixture for testing the radial strength of a lens is a specialized device used to detect the radial mechanical properties of the lens. It is designed to meet the requirements of radial strength testing of lenses and typically includes key components such as force application components and positioning mechanisms. It can simulate real-world scenarios such as assembly compression and transportation collisions to apply precise radial loads to the lens.

[0004] Existing fixtures often employ single-point or line contact force application, which can easily lead to radial stress concentration in the lens. Furthermore, the force application direction can easily deviate from the radial direction due to slight lens positioning offsets, resulting in test data deviations.

[0005] Therefore, it is necessary to provide a fixture for testing the radial strength of a lens to solve the above-mentioned technical problems. Utility Model Content

[0006] This invention provides a fixture for testing the radial strength of a lens, which solves the problem that existing fixtures, which mostly involve single-point or line contact, easily cause radial stress concentration in the lens during testing, and that slight positioning offsets can cause the applied force to deviate from the radial direction, ultimately leading to deviations in the test data.

[0007] To solve the above-mentioned technical problems, the fixture for testing the radial strength of a lens provided by this utility model includes: a mounting base;

[0008] A test bench is mounted on top of a mounting base. A mounting frame is mounted on the top of the test bench. A first telescopic component is mounted on the top of the mounting frame. A second telescopic component is mounted on the top of the test bench near both the front and back. Elastic components are mounted on the telescopic ends of both the first and second telescopic components. A movable plate is fixedly connected to the other end of each elastic component. A first pressure monitoring component is fixedly connected to the other end of each movable plate. A side docking frame is fixedly connected to the other end of each first pressure monitoring component.

[0009] A bottom support frame is installed on the top of the test bench. The top of the bottom support frame has a placement opening, and the bottom of the inner wall of the placement opening is provided with a soft pad.

[0010] The elastic component is a spring with a damper. When the elastic component is compressed to its limit, the test force can be applied to the lens. The side docking frame and the bottom support frame have the same shape, only different sizes, and the side docking frame and the surface in contact with the lens also have pads.

[0011] Preferably, a control box with a door is installed on the top of the mounting base, and an operation panel is installed on the front of the test bench;

[0012] The control panel allows you to set the operating parameters of the equipment, and the door is equipped with a lock.

[0013] Preferably, an auxiliary component is mounted on one side of the mounting frame. The auxiliary component includes an auxiliary frame and an auxiliary device. The auxiliary frame is used to mount the auxiliary device on one side of the mounting frame.

[0014] The auxiliary equipment is a monitoring camera, which can record the testing process.

[0015] Preferably, the mounting base includes a base plate, a mounting structure, and an adjustment structure, wherein the mounting structure is used to mount the adjustment structure to the bottom of the base plate;

[0016] The threaded connection between the adjustment structure and the installation structure can be used to adjust the stability of the base plate as needed.

[0017] Preferably, the second telescopic assembly includes a first telescopic component, a support plate, a stabilizer bar, and a mounting plate. The support plate is used to mount the stabilizer bar and the first telescopic component on the top of the test bench, and the mounting plate is mounted on the telescopic end of the first telescopic component and one end of the stabilizer bar.

[0018] Preferably, a protective frame with a folding door is installed on the top of the test bench. A magnetic assemblies are installed on the back of each folding door. Each magnetic assemblies include magnetic blocks and docking blocks. The magnetic blocks are installed on the back of the folding doors, and the docking blocks are installed on the top of the test bench.

[0019] The folding door is rotatably connected to the front of the protective frame.

[0020] Preferably, a fixing plate is installed on the top of the test platform near both sides, and a second telescopic component is installed on the opposite side of the two fixing plates. A second pressure monitoring component is installed on the telescopic end of the two second telescopic components.

[0021] Preferably, the other end of the second pressure monitoring component is equipped with an internally threaded tube via a mating plate, the internal thread of the internally threaded tube is connected to an externally threaded plug, and the other end of the externally threaded plug is fixedly connected to a positioning plug.

[0022] Compared with related technologies, the fixture for testing the radial strength of a lens provided by this utility model has the following beneficial effects:

[0023] This invention provides a fixture for testing the radial strength of a lens. To improve the accuracy of the radial strength test, a second telescopic component is installed on the front and back of the top of the test platform, respectively. At the same time, a first telescopic component is installed on the top of the test platform via a mounting bracket. Movable plates are installed at the telescopic ends of both the first and second telescopic components via elastic components. Then, a side-connecting bracket is installed on the other end of the movable plate via a first pressure monitoring component. The radial strength test can be performed simultaneously with the lens positioned on the top of the bottom support bracket from different directions. This design allows for positioning on the outer surface of the lens while performing the radial strength test, increasing the contact area with the lens and improving the accuracy of the radial strength test. Attached Figure Description

[0024] Figure 1 A schematic diagram of the structure of a first embodiment of the fixture for testing the radial strength of a lens provided by this utility model;

[0025] Figure 2 A structural diagram illustrating the installation structure of this utility model is provided.

[0026] Figure 3 Provided for this utility model Figure 2 An enlarged view of point A shown;

[0027] Figure 4 Provided for this utility model Figure 2 An enlarged view of point B shown;

[0028] Figure 5 A schematic diagram of the structure of a second embodiment of the fixture for testing the radial strength of a lens provided by this utility model;

[0029] Figure 6 Provided for this utility model Figure 5 A magnified view of point C shown.

[0030] The diagram is labeled as follows: 1. Mounting base frame; 101. Base plate; 102. Mounting structure; 103. Adjustment structure; 2. Control box; 3. Box door; 4. Test bench; 5. Folding door; 6. Protective frame; 7. Mounting frame; 8. First telescopic assembly; 9. Auxiliary assembly; 901. Auxiliary frame; 902. Auxiliary equipment; 10. Bottom support frame; 11. Second telescopic assembly; 111. First telescopic component; 112. Support plate; 113. Stabilizing bar; 114. Mounting plate; 12. Operation panel; 13. Magnetic assembly; 131. Magnetic block; 132. Connecting block; 14. Elastic component; 15. Movable plate; 16. Side connecting frame; 17. First pressure monitoring component; 18. Placement port; 19. Soft pad; 20. Fixing plate; 21. Second telescopic component; 22. Second pressure monitoring component; 23. Connecting plate; 24. Internal threaded pipe; 25. External threaded bolt; 26. Positioning bolt. Detailed Implementation

[0031] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0032] First Embodiment

[0033] Please refer to the following: Figure 1 , Figure 2 , Figure 3 , Figure 4 ,in, Figure 1 A schematic diagram of the structure of a first embodiment of the fixture for testing the radial strength of a lens provided by this utility model; Figure 2 A structural diagram illustrating the installation structure of this utility model is provided. Figure 3 Provided for this utility model Figure 2 An enlarged view of point A shown; Figure 4 Provided for this utility model Figure 2 The enlarged view at point B is shown. The fixture for testing the radial strength of the lens includes: mounting base 1;

[0034] Test bench 4 is mounted on top of mounting base 1. A mounting frame 7 is mounted on top of test bench 4. A first telescopic component 8 is mounted on top of mounting frame 7. A second telescopic component 11 is mounted on the top of test bench 4 near the front and back. Elastic components 14 are mounted on the telescopic ends of the first telescopic component 8 and the second telescopic component 11. A movable plate 15 is fixedly connected to the other end of the elastic component 14. A first pressure monitoring component 17 is fixedly connected to the other end of the movable plate 15. A side docking frame 16 is fixedly connected to the other end of the first pressure monitoring component 17.

[0035] A bottom support frame 10 is installed on the top of the test bench 4. The top of the bottom support frame 10 has a placement opening 18, and the bottom of the inner wall of the placement opening 18 is provided with a soft pad 19.

[0036] The elastic component 14 is a spring with a damper. When the elastic component 14 is compressed to its limit, the test force can be applied to the lens. The side docking frame 16 and the bottom support frame 10 have the same shape, only different sizes. The side docking frame 16 and the surface in contact with the lens also have a soft pad 19. The placement opening 18 is arc-shaped. The bottom support frame 10 and the side docking frame 16 are in corresponding positions.

[0037] Please refer to Figure 1 The top of the mounting base 1 is equipped with a control box 2 with a door 3, and the front of the test bench 4 is equipped with an operation panel 12.

[0038] The operation panel 12 can set the operating parameters of the equipment. The door 3 is equipped with a lock. The control box 2 contains a power switch and a controller for the operation of auxiliary equipment.

[0039] Please refer to Figure 1 and Figure 2 An auxiliary component 9 is installed on one side of the mounting frame 7. The auxiliary component 9 includes an auxiliary frame 901 and an auxiliary device 902. The auxiliary frame 901 is used to install the auxiliary device 902 on one side of the mounting frame 7.

[0040] Auxiliary device 902 is a monitoring camera that can record the testing process.

[0041] Please refer to Figure 1 and Figure 2 The mounting base 1 includes a base plate 101, a mounting structure 102, and an adjustment structure 103. The mounting structure 102 is used to mount the adjustment structure 103 to the bottom of the base plate 101.

[0042] The threaded connection between the adjustment structure 103 and the mounting structure 102 can adjust the stability of the base plate 101 as needed.

[0043] Please refer to Figure 2 and Figure 3 The second telescopic assembly 11 includes a first telescopic component 111, a support plate 112, a stabilizer bar 113, and a mounting plate 114. The support plate 112 is used to mount the stabilizer bar 113 and the first telescopic component 111 on the top of the test bench 4. The mounting plate 114 is mounted on the telescopic end of the first telescopic component 111 and one end of the stabilizer bar 113.

[0044] The telescopic ends of the stabilizer bar 113 and the first telescopic component 111 penetrate the support plate 112.

[0045] Please refer to Figure 1 , Figure 2 and Figure 4 The test bench 4 has a protective frame 6 with a folding door 5 installed on its top. The back of the folding door 5 is equipped with a magnetic suction assembly 13. The magnetic suction assembly 13 includes a magnetic suction block 131 and a docking block 132. The magnetic suction block 131 is installed on the back of the folding door 5, and the docking block 132 is installed on the top of the test bench 4.

[0046] The folding door 5 is rotatably connected to the front of the protective frame 6. The magnetic block 131 and the docking block 132 attract each other after docking, which can hold the folding door 5 in place.

[0047] The working principle of the fixture for testing the radial strength of a lens provided by this utility model is as follows:

[0048] A second telescopic component 11 is installed on the front and back of the top of the test bench 4, respectively. At the same time, the first telescopic component 8 is installed above the test bench 4 through the mounting bracket 7. Movable plates 15 are installed on the telescopic ends of the first telescopic component 8 and the second telescopic component 11 through elastic components 14. Then, the side docking bracket 16 is installed on the other end of the movable plate 15 through the first pressure monitoring component 17. The radial strength test can be performed while limiting the lens on the top of the bottom support frame 10 from different directions. In actual use, the lens is first placed on the bottom support frame 10 with the soft pad 19. Then, the lens is clamped from different directions by the telescopic end side docking bracket 16 of the first telescopic component 8 and the second telescopic component 11. Then, only the test force needs to be provided to the side docking bracket 16 at the corresponding position to complete the radial strength test of the lens.

[0049] Compared with related technologies, the fixture for testing the radial strength of a lens provided by this utility model has the following beneficial effects:

[0050] To improve the accuracy of the radial strength test of the lens, a second telescopic component 11 is installed on the front and back of the top of the test platform 4, respectively. At the same time, the first telescopic component 8 is installed above the test platform 4 via the mounting bracket 7. Movable plates 15 are installed on the telescopic ends of the first telescopic component 8 and the second telescopic component 11 via elastic components 14. Then, the side docking bracket 16 is installed on the other end of the movable plate 15 via the first pressure monitoring component 17. The radial strength test can be performed while limiting the lens on the top of the bottom support bracket 10 from different directions. This design allows for positioning on the outer surface of the lens while performing the radial strength test, increases the contact area with the lens, and helps to improve the accuracy of the radial strength test of the lens.

[0051] Second Embodiment

[0052] Please refer to the following: Figures 5-6 , Figure 5 A schematic diagram of the structure of a second embodiment of the fixture for testing the radial strength of a lens provided by this utility model; Figure 6 Provided for this utility model Figure 5 The enlarged view at point C shows a fixture for testing the radial strength of a lens based on the first embodiment of this application. The second embodiment of this application proposes another fixture for testing the radial strength of a lens. The second embodiment is merely a preferred embodiment of the first embodiment, and its implementation will not affect the independent implementation of the first embodiment.

[0053] Specifically, the difference in the fixture for testing the radial strength of a lens provided in the second embodiment of this application is that, please refer to... Figure 5 and Figure 6 The test bench 4 is equipped with a fixing plate 20 near both sides of the top. A second telescopic component 21 is installed on the opposite side of the two fixing plates 20. A second pressure monitoring component 22 is installed on the telescopic end of the two second telescopic components 21.

[0054] Pressure monitoring components can monitor changes in force.

[0055] Please refer to Figure 5 and Figure 6 The other end of the second pressure monitoring component 22 is equipped with an internally threaded tube 24 through the mating plate 23. The internal thread of the internally threaded tube 24 is connected to an externally threaded bolt 25, and the other end of the externally threaded bolt 25 is fixedly connected to a positioning bolt 26.

[0056] The outer surface of the positioning bolt 26 is covered with a soft material.

[0057] Compared with related technologies, the fixture for testing the radial strength of a lens provided by this utility model has the following beneficial effects:

[0058] To prevent the lens from shifting to the left or right, a second telescopic component 21 is installed on the top of the test platform 4 near both sides via a fixing plate 20. Then, the docking plate 23 is installed on the telescopic end of the second telescopic component 21 via a second pressure monitoring component 22. At the same time, the positioning bolt 26 is installed in the internal thread tube 24 at one end of the docking plate 23 via an external thread bolt 25. This allows for quick disassembly or replacement of the positioning bolt 26. In actual use, the two positioning bolts 26 can provide support for both ends of the lens, increasing the stability of the test.

[0059] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A fixture for testing the radial strength of a lens, characterized in that, include: Install the base frame; A test stand is mounted on top of a mounting base. A mounting frame is mounted on the top of the test stand. A first telescopic component is mounted on the top of the mounting frame. A second telescopic component is mounted on the top of the test stand near both the front and back. Elastic components are mounted on the telescopic ends of both the first and second telescopic components. A movable plate is fixedly connected to the other end of each elastic component. A first pressure monitoring component is fixedly connected to the other end of each movable plate. A side docking frame is fixedly connected to the other end of each first pressure monitoring component. A bottom support frame is installed on the top of the test bench. The top of the bottom support frame has a placement opening, and the bottom of the inner wall of the placement opening is provided with a soft pad.

2. The fixture for testing the radial strength of a lens according to claim 1, characterized in that, A control box with a door is mounted on the top of the mounting base, and an operation panel is mounted on the front of the test bench.

3. The fixture for testing the radial strength of a lens according to claim 1, characterized in that, An auxiliary component is mounted on one side of the mounting frame. The auxiliary component includes an auxiliary frame and an auxiliary device. The auxiliary frame is used to mount the auxiliary device on one side of the mounting frame.

4. The fixture for testing the radial strength of a lens according to claim 1, characterized in that, The mounting base includes a base plate, a mounting structure, and an adjustment structure. The mounting structure is used to mount the adjustment structure to the bottom of the base plate.

5. The fixture for testing the radial strength of a lens according to claim 1, characterized in that, The second telescopic assembly includes a first telescopic component, a support plate, a stabilizer bar, and a mounting plate. The support plate is used to mount the stabilizer bar and the first telescopic component on the top of the test bench, and the mounting plate is mounted on the telescopic end of the first telescopic component and one end of the stabilizer bar.

6. The fixture for testing the radial strength of a lens according to claim 1, characterized in that, The test bench is equipped with a protective frame with folding doors on its top. Magnetic assemblies are installed on the back of each folding door. Each magnetic assembly includes a magnetic block and a docking block. The magnetic block is installed on the back of the folding door, and the docking block is installed on the top of the test bench.

7. The fixture for testing the radial strength of a lens according to claim 1, characterized in that, The test bench is equipped with fixing plates on the top of both sides. A second telescopic component is installed on the opposite side of each of the two fixing plates. A second pressure monitoring component is installed on the telescopic end of each of the two second telescopic components.

8. The fixture for testing the radial strength of a lens according to claim 7, characterized in that, The other end of the second pressure monitoring component is equipped with an internally threaded tube via a mating plate. The internal thread of the internally threaded tube is connected to an externally threaded plug, and the other end of the externally threaded plug is fixedly connected to a positioning plug.

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