Jig rotating device for optical test platform

Abstract

The utility model relates to the technical field of jigs, and discloses a jig rotating device for an optical test platform, which comprises a jig fixing piece and a rotating operation mechanism, the rotary operation mechanism is arranged on the optical test platform; the rotary operating mechanism is provided with a rotary disc, the jig fixing piece is used for assembling a tested object, the jig fixing piece is arranged on the rotary disc, and the jig fixing piece is driven by the rotary disc to do annular rotary motion. According to the device, by arranging the rotary operation mechanism, the jig fixing piece and the tested object on the jig fixing piece can be conveniently driven to rotate in the annular direction, so that the position of the tested object does not need to be manually moved or adjusted in the optical testing process, the testing time is greatly saved, and the overall testing efficiency is improved. Through rotation of the jig fixing piece on the XZ plane by the rotating disc, the testing requirements of different angles and different directions in optical testing are met, and accurate alignment of the optical path of the tested lens module is realized.

Description

Technical Field

[0001] This utility model relates to the field of fixture technology, specifically a fixture rotation device for an optical testing platform. Background Technology

[0002] Optical testing platforms, as indispensable tools in modern precision manufacturing and scientific research, are designed and functioned to meet the needs of high-precision measurement of microstructures, surface morphology, and optical properties. The core components of this platform include a high-precision three-dimensional displacement fine-tuning platform, a specially designed testing fixture, a robust guide rail system, and a light source plate providing uniform illumination. In actual operation, the miniature lens is precisely positioned inside the testing fixture, which is then firmly fixed to the three-dimensional displacement fine-tuning platform. By precisely rotating the fine-tuning knob, the operator can achieve minute and precise displacement control of the fixture along the X, Y, and Z axes, ensuring that the lens can be accurately positioned at the optimal observation position of the object under test, laying a solid foundation for subsequent image capture and analysis.

[0003] However, while existing optical testing platforms demonstrate superior performance in linear displacement control, their design limitations are becoming increasingly apparent, especially when handling objects with specific rotational angles. Specifically, existing three-dimensional displacement fine-tuning platforms fall short when there is an angular deviation between the object and the fixture in the XZ plane. Lacking rotational adjustment capabilities around the X or Z axis, operators cannot directly correct the angle of the object using the platform and must instead manually adjust it. This not only significantly reduces testing efficiency and increases operational complexity but may also introduce additional errors during adjustment, affecting the accuracy and reliability of the test.

[0004] Even more challenging is the fact that manual adjustment often becomes extremely difficult, or even impossible, when the object being tested is large, heavy, or structurally complex. In such cases, even if the operator manages to complete the adjustment, minute deviations during the adjustment process may prevent the lens from accurately capturing the entire object or key details, thus affecting the image testing results and potentially causing the entire testing process to fail. Therefore, overcoming the limitations of existing optical testing platforms in terms of rotation angle adjustment has become a pressing technical challenge. Utility Model Content

[0005] In order to overcome the defects of the existing technology, the purpose of this utility model is to provide a fixture rotation device for an optical testing platform, so as to solve the technical problem of how to overcome the limitations of the existing optical testing platform in terms of rotation angle adjustment.

[0006] This utility model is achieved through the following technical solution:

[0007] This utility model provides a fixture rotation device for an optical testing platform, including a fixture fixing component and a rotation operation mechanism;

[0008] The rotating operating mechanism is set on the optical testing platform; the rotating operating mechanism is equipped with a rotating disk, and the fixture fixing component is used to assemble the object to be tested. The fixture fixing component is set on the rotating disk, and the rotating disk drives the fixture fixing component to perform circumferential rotation.

[0009] Preferably, the rotary operating mechanism includes a fine-tuning component, a locking mechanism, a base plate, a rotating disk, and a central shaft;

[0010] The central shaft is vertically fixed at the center of the base plate. The central shaft is a hollow shaft, and the hollow hole is a light-transmitting hole.

[0011] The rotating disk and the rotary disk are sleeved on the central shaft and rotate around the central shaft.

[0012] The top of the base plate is provided with a connecting groove; the fine-tuning components are distributed on both sides of the connecting groove; the locking mechanism is located in the connecting groove, the locking mechanism is fixed on the rotating disk, and is set to rotate synchronously with the rotating disk. The locking end of the locking mechanism contacts the side wall of the rotating disk. When the locking end of the locking mechanism abuts against the side wall of the rotating disk, the position of the rotating disk is finely adjusted by the fine-tuning components abutting against the locking mechanism.

[0013] Furthermore, the locking mechanism includes a locking screw and a converter;

[0014] The converter is located in the communicating groove, and the converter is fixed on the rotating disk and rotates synchronously with the rotating disk;

[0015] The converter has a threaded through hole, and the locking screw has a locking rod; the locking rod passes through the threaded through hole and abuts against the rotating disk.

[0016] The fine-tuning components are arranged on both sides of the converter, and the fine-tuning ends of the fine-tuning components are in contact with the side walls of the converter to push the converter and drive the rotating disk to rotate.

[0017] Furthermore, the fine-tuning components include a screwing component and a flexible component;

[0018] The screwing assembly and the elastic assembly are distributed on both sides of the connecting groove, and the adjustment ends of the screwing assembly and the elastic assembly are respectively set on both sides of the converter, which are used to push the converter to swing left and right and synchronously drive the rotating disk to rotate.

[0019] Furthermore, the screwing assembly includes a fine-tuning handle and a micrometer screw;

[0020] One end of the micrometer lead screw is mounted on the fine-tuning handle, and the other end extends into the side wall of the base plate and contacts one side of the converter.

[0021] The elastic component is located on the opposite side of the fine-tuning handle on the base plate. The elastic component contains an elastic element, which contacts the other side of the converter by extending into the side wall of the base plate.

[0022] Furthermore, a scale is provided on the base plate along the direction of rotation of the rotating disk.

[0023] Furthermore, the base plate is provided with mounting holes, and the device is mounted on the optical testing platform through the mounting holes.

[0024] Preferably, the rotating disk is provided with a plurality of positioning holes, and the fixture fixing component is fixed on the rotating disk corresponding to the plurality of positioning holes.

[0025] Furthermore, the fixture fixing component is provided with a fixing groove for installing the object to be measured; a number of fixing holes are provided in the fixing groove, and the fixing holes are fixed to the positioning holes by screws; fixing blocks and fixing stops are provided on both sides of the fixing groove for fixing the object to be measured in the fixing groove.

[0026] Furthermore, the fixing block is provided with a through hole, and a locking bolt is installed inside the through hole. The locking bolt abuts against the object being tested through the through hole.

[0027] Compared with the prior art, the present invention has the following beneficial technical effects:

[0028] This invention provides a fixture rotation device for an optical testing platform. By setting up a rotation operation mechanism, the fixture fixing component and the object under test on it can be easily driven to rotate circumferentially. This eliminates the need for manual movement or adjustment of the object under test during optical testing, thereby greatly saving testing time and improving overall testing efficiency. The rotation of the fixture fixing component in the XZ plane via a rotating disk meets the testing requirements of different angles and directions in optical testing, achieving precise alignment of the optical path of the lens module under test.

[0029] Furthermore, the locking mechanism securely locks the rotating disk in a specific position, ensuring the stability of the tested object's position during testing. Simultaneously, the fine-tuning component allows for minor adjustments to the rotating disk's position even when locked, meeting the demands of high-precision testing and improving accuracy and reliability. The rotating disk and rotating plate are mounted on a central shaft and rotate circumferentially around this shaft, allowing the tested object to rotate flexibly at multiple angles. This not only meets the testing requirements for different angles in optical testing but also simplifies the operation process, making testing more convenient. The central shaft features a hollow shaft design, with a hollow hole serving as a light-transmitting aperture, allowing light to pass smoothly through the rotating mechanism and directly illuminate the tested object. This not only ensures testing accuracy but also avoids testing errors caused by the rotating mechanism obstructing light.

[0030] Furthermore, the locking screw, via the locking rod, passes through the threaded through-hole of the converter and abuts against the rotating disk, achieving precise locking of the rotating disk. This ensures the positional stability of the rotating disk during testing and prevents positional displacement caused by vibration or external force interference. Simultaneously, the fine-tuning component allows for minute positional adjustments to the rotating disk while it is locked, meeting the demands of high-precision testing. The converter is fixed to the rotating disk and rotates synchronously with it, allowing the locking mechanism to move with the rotation of the rotating disk. This enables locking the rotating disk at different angles, making the locking operation more flexible and allowing for quick locking or releasing of the rotating disk according to testing requirements. The fine-tuning components are located on both sides of the converter, with their fine-tuning ends contacting the side walls of the converter. This makes fine-tuning operations more intuitive and convenient; operators can easily adjust the fine-tuning components to push the converter and cause the rotating disk to make minor rotational adjustments.

[0031] Furthermore, the combined use of the screw-on and elastic components makes the fine-tuning process more precise. The rotation of the screw-on component generates a thrust on the converter, causing it to swing left and right, thus driving the rotating disk to make minute rotational adjustments. The elastic component provides a buffering and resetting function, ensuring the smoothness and accuracy of the fine-tuning process. The screw-on and elastic components are located on opposite sides of the converter, making the adjustment method more flexible. Operators can choose to use the screw-on component alone for fine-tuning, or utilize the combined effect of the screw-on and elastic components to achieve more complex adjustment needs.

[0032] Furthermore, the micrometer screw, as the transmission component between the fine-tuning handle and the converter, possesses extremely high precision and stability. By rotating the fine-tuning handle, the feed amount of the micrometer screw can be precisely controlled, thereby achieving minute and accurate movement of the converter. The design of the fine-tuning handle makes operation more intuitive and convenient. Operators can drive and fine-tune the micrometer screw simply by rotating the handle. The elastic component provides a stable fine-tuning effect. During fine-tuning, the elastic component can absorb some vibration and impact forces, reducing fine-tuning errors caused by external interference. Simultaneously, the elastic component also provides a certain degree of reset, ensuring that the position remains stable after fine-tuning.

[0033] Furthermore, the scale provides operators with intuitive visual feedback, allowing them to clearly see the current position or angle of the rotary table. This helps operators to more precisely control the rotation angle of the rotary table when making fine adjustments, improving the accuracy and reliability of the test.

[0034] Furthermore, the mounting holes allow the base plate to be securely mounted on the optical testing platform, avoiding testing errors caused by the base plate shaking or moving during the testing process.

[0035] Furthermore, the positioning holes provide a precise fixed position for the fixture, ensuring its stability and accuracy on the rotary table. Through the cooperation of the positioning holes and fixture fixing parts, the fixture can be easily disassembled and replaced. This allows the rotary operating mechanism to be adapted to a variety of different test fixtures, improving its versatility and flexibility.

[0036] Furthermore, the design of the fixing slot and fixing hole provides a precise fixed position for the test object, ensuring its stability and accuracy during the testing process. Fixing the test object with screws, aligning the fixing hole with the positioning hole on the rotating disk, further ensures precise positioning and reduces testing errors. The fixing slot design allows for easy installation and removal of the test object, improving testing flexibility and efficiency. Operators simply need to place the test object into the fixing slot and secure it using the fixing block and fixing stop; no complicated procedures are required.

[0037] Furthermore, the locking bolts directly abut against the object being tested through the through holes, providing additional fixing force and thus enhancing the stability of the object within the fixing groove. This helps prevent the object from shaking or shifting during the test due to uneven force or external interference, ensuring the accuracy and reliability of the test. Attached Figure Description

[0038] Figure 1 This is a schematic diagram of the fixture rotation device in an embodiment of the present invention;

[0039] Figure 2This is a schematic diagram of the rotating operating mechanism in an embodiment of the present invention;

[0040] Figure 3 This is a schematic diagram of the fixture fixing component in an embodiment of this utility model;

[0041] In the diagram: 1. Fixture fixing component; 2. Rotary operating mechanism; 3. Locking bolt; 11. Fixing groove; 12. Fixing block; 13. Fixing stop block; 14. Fixing hole; 15. Through hole; 21. Locking screw; 22. Fine adjustment handle; 23. Base plate; 24. Scale; 25. Mounting hole; 26. Rotary disk; 27. Positioning hole; 28. Light transmission hole; 29. ​​Converter; 210. Locking rod; 211. Micrometer screw; 212. Rotating disk; 213. Central shaft; 214. Elastic component. Detailed Implementation

[0042] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0043] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this utility model are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of the utility model described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, system, product, or device that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, products, or devices.

[0044] The present invention will now be described in further detail with reference to the accompanying drawings:

[0045] The purpose of this invention is to provide a fixture rotation device for an optical testing platform, in order to solve the technical problem of how to overcome the limitations of existing optical testing platforms in terms of rotation angle adjustment.

[0046] See Figure 1In one embodiment of the present invention, a fixture rotation device for an optical testing platform is provided, including a fixture fixing member 1 and a rotation operation mechanism 2; the rotation operation mechanism 2 is disposed on the optical testing platform; the rotation operation mechanism 2 is provided with a rotating disk 26, the fixture fixing member 1 is used to assemble the object to be tested, the fixture fixing member 1 is disposed on the rotating disk 26, and the rotating disk 26 drives the fixture fixing member 1 to perform circumferential rotation.

[0047] Specifically, according to Figure 2 As shown, the rotating operating mechanism 2 includes a fine-tuning component, a locking mechanism, a base plate 23, a rotating disk 212, and a central shaft 213. The central shaft 213 is vertically fixed at the center of the plane of the base plate 23. The central shaft 213 is a hollow shaft, and the hollow hole is a light-transmitting hole 28. The rotating disks 212 and 26 are sleeved on the central shaft 213 and rotate around the central shaft 213. The top of the base plate 23 is provided with a connecting groove. The fine-tuning component is distributed on both sides of the connecting groove. The locking mechanism is located in the connecting groove and is fixed on the rotating disk 212. It rotates synchronously with the rotating disk 212. The locking end of the locking mechanism contacts the side wall of the rotating disk 26. When the locking end of the locking mechanism abuts against the side wall of the rotating disk 26, the position of the rotating disk 26 is finely adjusted by the fine-tuning component abutting against the locking mechanism.

[0048] In this embodiment, the base plate 23 serves as the basic support component of the entire rotating operating mechanism. Its top is provided with a connecting groove, providing installation and operating space for the fine-tuning components and the locking mechanism. The central shaft 213 is vertically fixed at the center of the plane of the base plate 23, and is a hollow shaft. The hollow hole within it serves as a light-transmitting hole 28, allowing light to pass through. The rotating disk 212 is fitted onto the central shaft 213 and can rotate circumferentially around the central shaft 213. It serves as the carrier of the locking mechanism and rotates synchronously with it. The rotating disk 26 is also fitted onto the central shaft 213 and is positioned opposite to the rotating disk 212. Its sidewall contacts the locking end of the locking mechanism, used to receive locking force and adjust its position. The fine-tuning components are distributed on both sides of the connecting groove, used to fine-tune the locking mechanism, thereby achieving precise adjustment of the position of the rotating disk 26. The locking mechanism is located within the connecting groove, fixed to the rotating disk 212, and rotates synchronously with it. Its locking end contacts the side wall of the rotating disk 26 and is used to lock and adjust the position of the rotating disk 26.

[0049] The locking mechanism includes a locking screw 21 and a converter 29. The converter 29 is located in the communicating groove and is fixed on the rotating disk 212, rotating synchronously with the rotating disk 212. The converter 29 has a threaded through hole, and the locking screw 21 has a locking rod 210. The locking rod 210 passes through the threaded through hole and abuts against the rotating disk 26. The fine-tuning component is arranged on both sides of the converter 29, and the fine-tuning end of the fine-tuning component contacts the side walls of the converter 29, which is used to push the converter 29 and drive the rotating disk 212 to rotate.

[0050] In this embodiment, the locking mechanism consists of a locking screw 21 and a converter 29. The converter 29 is located in the communicating groove of the base plate 23 and is fixed on the rotating disk 212, rotating synchronously with the rotating disk 212. The converter 29 has a threaded through hole, through which the locking rod 210 of the locking screw 21 passes and abuts against the side wall of the rotating disk 26.

[0051] When it is necessary to fix the position of the rotating disk 26, the locking rod 210 moves in the threaded through hole by rotating the locking screw 21, thereby pressing against the side wall of the rotating disk 26 to achieve the locking function.

[0052] The fine-tuning component includes a screwing component and an elastic component; the screwing component and the elastic component are distributed on both sides of the connecting groove, and the adjustment ends of the screwing component and the elastic component are respectively set on both sides of the converter 29, which are used to push the converter 29 to swing left and right and synchronously drive the rotating disk 212 to rotate.

[0053] The screwing assembly includes a fine-tuning handle 22 and a micrometer screw 211; one end of the micrometer screw 211 is mounted on the fine-tuning handle 22, and the other end extends into the side wall of the base plate 23 and contacts one side of the converter 29; the elastic assembly is located on the opposite side of the fine-tuning handle 22 to the base plate 23, and the elastic assembly contains an elastic element 214, which extends into the side wall of the base plate 23 and contacts the other side of the converter 29.

[0054] In this embodiment, the screwing assembly mainly consists of a fine-tuning handle 22 and a micrometer screw 211. One end of the micrometer screw 211 is connected to the fine-tuning handle 22, and the other end passes through the side wall of the base plate 23 and contacts one side of the converter 29. The fine-tuning handle 22 is used to manually rotate the micrometer screw 211, thereby pushing or pulling the converter 29. An elastic component is disposed on the opposite side of the fine-tuning handle 22 to the base plate 23. The elastic component contains an elastic element 214, such as a spring, to provide restoring force. One end of the elastic element 214 extends into the side wall of the base plate 23 and contacts the other side of the converter 29, while the other end is fixed within the frame of the elastic component.

[0055] In this embodiment, a scale 24 is provided on the base plate 23 along the direction of rotation of the rotating disk 26.

[0056] In this embodiment, the base plate 23 is provided with mounting holes 25, and is mounted on the optical testing platform through the mounting holes 25.

[0057] In this embodiment, the rotating disk 26 is provided with a plurality of positioning holes 27, and the fixture fixing member 1 is fixed on the rotating disk 26 corresponding to the plurality of positioning holes 27.

[0058] Among them, according to Figure 3 As shown, the fixture fixing component 1 is provided with a fixing groove 11 for installing the object to be measured; a plurality of fixing holes 14 are provided in the fixing groove 11, and the plurality of fixing holes 14 are fixed to the plurality of positioning holes 27 by screws; fixing blocks 12 and fixing stops 13 are respectively provided on both sides of the fixing groove 11 for fixing the object to be measured in the fixing groove 11.

[0059] The fixing block 12 is provided with a through hole 15, and a locking bolt 3 is installed in the through hole 15. The locking bolt 3 abuts against the object being tested through the through hole 15.

[0060] The fixture rotation device for an optical testing platform provided by this utility model, when in use:

[0061] The rotating operating mechanism 2 is fixed to the optical testing platform through the mounting hole 25.

[0062] The fixture fixture 1 is placed on the rotating disk 26, and the fixture fixture 1 is fixed to the rotating disk 26 by means of the fixing holes 14 in the fixing groove 11 corresponding to the positioning holes 27 on the rotating disk 26 and screws.

[0063] The object to be tested is placed in the fixing groove 11 of the fixture fixture 1, and the object to be tested is fixed in the fixing groove 11 using the fixing block 12 and the fixing stop 13. If further fixation is required, the locking bolt 3 can be used to lock it against the object to be tested through the through hole 15 on the fixing block 12.

[0064] After the object to be tested is installed, its position needs to be fine-tuned to ensure the accuracy of the test.

[0065] The operator can rotate the fine adjustment handle 22 to move the micrometer screw 211 within the side wall of the base plate 23, thereby pushing or pulling one side of the converter 29.

[0066] Since the converter 29 is fixed to and rotates synchronously with the rotating disk 212, pushing the converter 29 will cause the rotating disk 212 and the rotating disk 26 to make slight rotational adjustments.

[0067] Meanwhile, the elastic element 214 within the elastic component provides a restoring force, contacting the other side of the converter 29, thus providing resistance and feedback during fine-tuning, helping the operator to more precisely control the position of the rotary disk 26.

[0068] Once the position of the rotating disk 26 is adjusted, it needs to be locked to prevent movement during the test.

[0069] The operator can rotate the locking screw 21 to move the locking rod 210 in the threaded through hole in the converter 29, thereby pressing against the side wall of the rotating disk 26 to achieve the locking function.

[0070] After locking, the rotating disk 26, rotating disk 212, fixture fixing part 1, and the object under test will remain in a stable position, ensuring the accuracy of the test.

[0071] After locking and securing, optical testing can be performed.

[0072] Light can be shone onto the object under test through the hollow hole (light-transmitting hole 28) of the central axis 213 to perform relevant optical tests.

[0073] If the position of the object being tested needs to be adjusted again during the test, the above fine-tuning steps can be repeated, and the position should be locked again after adjustment.

[0074] This invention provides a fixture rotation device for an optical testing platform. By setting a rotation operation mechanism, it can easily drive the fixture fixing component and the object under test to rotate circumferentially. This eliminates the need for manual movement or adjustment of the object under test during optical testing, significantly saving testing time and improving overall testing efficiency. The rotation of the fixture fixing component in the XZ plane via a rotating disk meets the testing requirements of different angles and directions in optical testing, achieving precise alignment of the optical path of the lens module under test.

[0075] This invention achieves precise control and adjustment of the positions of the fixture fixture 1 and the object under test through the fine-tuning component and locking mechanism of the rotary operating mechanism 2. Simultaneously, the scale 24 on the base plate 23 helps the operator to more accurately understand and adjust the rotation angle of the rotary disk 26. This design improves the accuracy and efficiency of optical testing and is suitable for various testing scenarios requiring high-precision positioning and adjustment.

[0076] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and not to limit it. Although the utility model has been described in detail with reference to the above embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to the specific implementation of this utility model. Any modifications or equivalent substitutions that do not depart from the spirit and scope of this utility model should be covered within the protection scope of the claims of this utility model.

Claims

1. A fixture rotation device for an optical testing platform, characterized in that, It includes a fixture fixing component (1) and a rotating operating mechanism (2); The rotating operating mechanism (2) is set on the optical testing platform; the rotating operating mechanism (2) is provided with a rotating disk (26), the fixture fixing part (1) is used to assemble the object to be tested, the fixture fixing part (1) is set on the rotating disk (26), and the rotating disk (26) drives the fixture fixing part (1) to make a circumferential rotation.

2. The fixture rotation device for an optical testing platform according to claim 1, characterized in that, The rotating operating mechanism (2) includes a fine-tuning component, a locking mechanism, a base plate (23), a rotating disk (212), and a central shaft (213). The central shaft (213) is vertically fixed at the center of the plane of the base plate (23). The central shaft (213) is a hollow shaft, and the hollow hole is a light-transmitting hole (28). The rotating disk (212) and the rotating disk (26) are sleeved on the central shaft (213) and rotate around the central shaft (213); The top of the base plate (23) is provided with a connecting groove; the fine-tuning components are distributed on both sides of the connecting groove; the locking mechanism is located in the connecting groove, the locking mechanism is fixed on the rotating disk (212), and rotates synchronously with the rotating disk (212). The locking end of the locking mechanism contacts the side wall of the rotating disk (26). When the locking end of the locking mechanism abuts against the side wall of the rotating disk (26), the position of the rotating disk (26) is finely adjusted by the fine-tuning components abutting against the locking mechanism.

3. A fixture rotation device for an optical testing platform according to claim 2, characterized in that, The locking mechanism includes a locking screw (21) and a converter (29); The converter (29) is located in the communicating groove. The converter (29) is fixed on the rotating disk (212) and rotates synchronously with the rotating disk (212). The converter (29) has a threaded through hole, and the locking screw (21) has a locking rod (210); the locking rod (210) passes through the threaded through hole and abuts against the rotating disk (26); The fine-tuning components are arranged on both sides of the converter (29), and the fine-tuning ends of the fine-tuning components are in contact with the side walls of both sides of the converter (29) to push the converter (29) and drive the rotating disk (212) to rotate.

4. A fixture rotation device for an optical testing platform according to claim 3, characterized in that, The fine-tuning component includes a screwing component and an elastic component; The screwing assembly and the elastic assembly are distributed on both sides of the connecting groove, and the adjustment ends of the screwing assembly and the elastic assembly are respectively set on both sides of the converter (29) to push the converter (29) to swing left and right and synchronously drive the rotating disk (212) to rotate.

5. A fixture rotation device for an optical testing platform according to claim 4, characterized in that, The screwing assembly includes a fine-tuning handle (22) and a micrometer screw (211). One end of the micrometer screw (211) is set on the fine adjustment handle (22), and the other end extends into the side wall of the base plate (23) and contacts one side of the converter (29); The elastic component is located on the opposite side of the fine-tuning handle (22) to the base plate (23). The elastic component contains an elastic element (214), which contacts the other side of the converter (29) by extending into the side wall of the base plate (23).

6. A fixture rotation device for an optical testing platform according to claim 2, characterized in that, The base plate (23) is provided with a scale (24) along the direction of rotation of the rotating disk (26).

7. A fixture rotation device for an optical testing platform according to claim 2, characterized in that, The base plate (23) is provided with mounting holes (25), and is mounted on the optical testing platform through the mounting holes (25).

8. A fixture rotation device for an optical testing platform according to claim 1, characterized in that, The rotating disk (26) is provided with a plurality of positioning holes (27), and the fixture fixing member (1) is fixed on the rotating disk (26) corresponding to the plurality of positioning holes (27).

9. A fixture rotation device for an optical testing platform according to claim 8, characterized in that, The fixture fixing component (1) is provided with a fixing groove (11) for installing the object to be measured; a number of fixing holes (14) are provided in the fixing groove (11), and the number of fixing holes (14) are fixed to the number of positioning holes (27) by screws; a fixing block (12) and a fixing stop block (13) are provided on both sides of the fixing groove (11) for fixing the object to be measured in the fixing groove (11).

10. A fixture rotation device for an optical testing platform according to claim 9, characterized in that, The fixing block (12) is provided with a through hole (15), and a locking bolt (3) is provided in the through hole (15). The locking bolt (3) abuts against the object being tested through the through hole (15).

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