Polishing nondestructive testing device for optical lens
By designing an automatic positioning and adjustment non-destructive testing device for polishing optical lenses, the positioning problem during optical lens replacement was solved, achieving efficient and comprehensive testing results.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-26
- Publication Date
- 2026-03-17
AI Technical Summary
Existing non-destructive testing equipment requires time for precise placement and positioning when changing optical lenses of different diameters, resulting in low testing efficiency and a high likelihood of testing failure.
A non-destructive testing device for polishing optical lenses was designed. The device achieves automatic positioning and adjustment of optical lenses through a motor-driven transmission system and an elastic structure, ensuring that the lens is aligned with the axis of the testing mechanism, and combines the polishing mechanism to handle defects.
It achieves rapid and stable positioning of optical lenses, improves detection efficiency, reduces the false negative rate, and ensures that no part of the entire surface is missed during detection.
Smart Images
Figure CN121670524A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the field of non-destructive testing instruments, in particular to a polishing non-destructive testing device for optical lenses. BACKGROUND
[0002] The polishing non-destructive testing device for optical lenses is a device for detecting the surface quality and topography of polished optical lenses without damaging the lenses. During non-destructive testing, optical signals (such as interference fringes, scattered light, and reflected images) are collected from the lens surface, and the signal characteristics are analyzed using algorithms to achieve non-destructive testing of the surface quality and surface shape accuracy of the polished lenses. Non-destructive testing of polished optical lens surfaces is a key step in ensuring the optical performance, reliability, and product quality of the lenses. During actual testing, the detected optical lenses are first positioned, and the position needs to be adjusted for image capture. This is because most non-destructive testing devices (such as white light interferometers and dark-field imaging systems) have fixed detection fields of view and optical axis lines. If the lens position is offset, the lens area to be tested may exceed the camera field of view, or the lens surface normal may not coincide with the detection optical axis, causing the light reflection or refraction path to deviate from the detector, which cannot form clear interference fringes, scattered images, or reflected fringes, directly leading to testing failure. Each time a different diameter optical lens is replaced for testing, precise positioning is required, which affects testing efficiency.
[0003] Therefore, it is necessary to provide a polishing non-destructive testing device for optical lenses to solve the above problems. SUMMARY
[0004] The main purpose of the present application is to provide a polishing non-destructive testing device for optical lenses, which can effectively solve the problems in the background art.
[0005] To achieve the above purpose, the technical scheme adopted by the present application is as follows: A polishing non-destructive testing device for optical lenses, comprising a bottom plate, a fixed plate fixedly connected to one side of the upper surface of the bottom plate, mounting grooves opened in two side walls of the bottom plate, a first U-shaped column slidingly connected to the groove walls of the two mounting grooves, and a non-destructive testing device fixedly connected to the middle part of the surface of the first U-shaped column. A first motor is fixedly connected to the upper surface of the base plate away from the fixed plate. A transmission column is fixedly connected to the output end of the first motor. A friction disc is fixedly connected to the end of the transmission column away from the first motor. An adjustment column is installed below the friction disc. An adjustment plate is slidably connected to the end of the adjustment column away from the transmission column. A polishing mechanism for polishing optical lenses is provided in the middle of the surface of the adjustment plate away from the base plate. The adjustment plate is slidably connected to the base plate. A groove is formed on the surface of the adjustment plate near the fixed plate. A movable sleeve is slidably connected to the groove wall. A second spring is fixedly connected to the inner wall of the movable sleeve. The other end of the second spring is fixedly connected to the groove wall. A fixed column is fixedly connected to the surface of the movable sleeve away from the base plate. A second U-shaped column is slidably connected to the outside of the fixed column. A first rotating column is fixedly connected to the surface of the transmission column. The first rotating column and the second U-shaped column are installed together. A third spring is fixedly connected to the end of the surface of the second U-shaped column away from the first rotating column. The other end of the third spring is fixedly connected to the end of the fixed column near the movable sleeve.
[0006] Preferably, rotating rods are symmetrically mounted on the inner side of the first U-shaped column via torsion springs, wherein two of the rotating rods are fitted to the edge of the adjustment plate surface, and the other two rotating rods are fitted to the edge of the fixed plate surface.
[0007] Preferably, a fixed sleeve is fixedly connected to the end of the T-shaped column away from the rotating block. The first spring is sleeved on the outside of the fixed sleeve. A fixed rod is slidably connected to the inner wall of the fixed sleeve. A movable plate is fixedly connected to the end of the multiple fixed rods away from the fixed sleeve. A first rack column is fixedly connected to two sides of the movable plate. A transmission gear is meshed on the surface of the first rack column. Both transmission gears are rotatably connected to the side of the fixed plate. An arc-shaped plate is fixedly connected to the surface of the two transmission gears away from the fixed plate. A lifting plate is installed at the end of the two arc-shaped plates away from the bottom plate. A first circular hole is symmetrically opened on the surface of the lifting plate near the edge. A cylinder is slidably connected to the wall of the first circular hole. A connecting spring is sleeved on the outside of the cylinder. The upper ends of the multiple connecting springs are fixedly connected to the lower surface of the lifting plate. The lower ends of the multiple connecting springs are fixedly connected to the fixed plate. The lifting plate has multiple second circular holes equidistantly spaced on its surface, and a T-shaped limiting rod is slidably connected to the wall of each second circular hole.
[0008] Preferably, the initial state of the connecting spring is a stretched state.
[0009] Preferably, the upper surface of the base plate is symmetrically provided with limiting grooves, and both limiting grooves are slidably connected to the adjusting plate.
[0010] Preferably, the adjusting column is rotatably connected to the base plate, a connecting block is rotatably connected to the end of the adjusting column away from the friction disc, a connecting groove is formed on the surface of the adjusting plate away from the sliding groove, and the connecting block is slidably connected to the connecting groove.
[0011] Preferably, rubber pads are fixedly connected to the surfaces of the movable sleeve and the plurality of rotating blocks.
[0012] Preferably, a through hole is provided in the middle of the surface of the base plate, and a wiping cloth is fitted onto the wall of the through hole.
[0013] Compared with the prior art, the present invention provides a non-destructive testing device for polishing optical lenses, which has the following advantages: This non-destructive testing (NDT) device for optical lenses uses an adjusting plate and a fixed plate. A first motor drives a transmission column to rotate, which in turn drives a friction disc. The adjusting column rotates along with the friction disc, causing the adjusting plate to move closer to the fixed plate. Since two rotating rods are in contact with the adjusting plate and the other two are in contact with the fixed plate, the torsion spring deforms, and the first U-shaped column also moves with the rotating rods. This allows the first U-shaped column to be positioned in the middle between the adjusting plate and the fixed plate, ensuring that the NDT mechanism is aligned with the axis of the optical lens being tested. The optical lens being tested is then stably positioned, eliminating the need for additional time for fine-tuning after placement, thus saving time and improving the testing efficiency. If the surface of the optical lens being tested has no scratches, pits, or other defects, the NDT is then performed on the next optical lens. If defects are found, the polishing mechanism promptly polishes the surface of the optical lens.
[0014] This non-destructive testing device for polished optical lenses allows for testing of circular optical lenses. When replacing the optical lens with one of different diameters, the device simply places the replaced optical lens between the fixed plate and the adjusting plate, moves the adjusting plate, and the optical lens being tested contacts the rubber pads on the surfaces of multiple rotating blocks, causing the T-shaped column to move. This creates relative movement between the T-shaped column and the circular groove, compressing the first spring. The spring force is used to adjust the position of the optical lens being tested. Once the T-shaped column is fully placed in the circular groove, it is no longer adjusted, thus completing the placement and positioning of the optical lens being tested, and enabling non-destructive testing. As the first motor continues to drive the transmission column to rotate, the first rotating column is simultaneously adjusted to rotate. During the rotation, the first rotating column can contact the second U-shaped column, causing the second U-shaped column to move, which in turn drives the movable sleeve to move. The optical lens being inspected will also be adjusted to rotate, working in conjunction with the non-destructive testing mechanism to ensure the inspection effect. This allows all areas of the lens surface (including edges and dead corners) to pass through the optimal acquisition position of the inspection field of view in sequence. At the same time, it allows defects in different directions (such as transverse, longitudinal, and oblique scratches) to form the optimal scattering angle with the illumination light, ensuring that no part of the entire surface is missed during inspection and significantly reducing the false negative rate. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is the invention Figure 1 Enlarged view of point A in the middle; Figure 3 This is a top view of the overall structure of the present invention; Figure 4 This is a schematic diagram of the overall structure of the present invention from another angle; Figure 5 This is a partial structural diagram of the circular groove of the present invention; Figure 6 This is a partial structural diagram of the movable plate of the present invention; Figure 7 This is a partial structural diagram of the fixing plate of the present invention; Figure 8 This is a partial structural diagram of the adjustment plate of the present invention; Figure 9 This is a partial structural diagram of the lifting plate of the present invention.
[0016] In the diagram: 1. Base plate; 11. Fixing plate; 12. Mounting groove; 13. First U-shaped column; 131. Rotating rod; 14. Non-destructive testing mechanism; 15. First motor; 16. Transmission column; 17. Friction disc; 18. Adjusting column; 181. Connecting block; 19. Adjusting plate; 110. Polishing mechanism; 111. Slide groove; 112. Movable sleeve; 113. Through hole; 1121. Fixing column; 1122. Second U-shaped column; 11 23. First rotating column; 1124. Third spring; 1125. Rubber pad; 113. Through hole; 2. Circular groove; 3. T-shaped column; 31. Fixed sleeve; 32. Fixed rod; 33. Movable plate; 34. First rack column; 35. Transmission gear; 36. Arc plate; 37. Lifting plate; 371. Second circular hole; 372. T-shaped limit rod; 38. First circular hole; 39. Cylinder; 310. Connecting spring; 4. Rotating block. Detailed Implementation
[0017] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.
[0018] Please see Figure 1 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 8 A non-destructive testing device for polishing optical lenses includes a base plate 1, a fixing plate 11 fixedly connected to one side of the upper surface of the base plate 1, mounting grooves 12 formed on two side walls of the base plate 1, a first U-shaped column 13 slidably connected to the groove walls of the two mounting grooves 12, and a non-destructive testing mechanism 14 fixedly connected to the middle of the surface of the first U-shaped column 13. Circular grooves 2 are equidistantly formed on the surface of the fixing plate 11. T-shaped columns 3 are slidably connected to the groove walls of the circular grooves 2. A first spring is fixedly connected to one end of the T-shaped column 3, and a rotating block 4 is rotatably connected to the other end of the T-shaped column 3. A first motor 15 is fixedly connected to the side of the upper surface of the base plate 1 away from the fixed plate 11. A transmission column 16 is fixedly connected to the output end of the first motor 15. A friction disc 17 is fixedly connected to the end of the transmission column 16 away from the first motor 15. An adjustment column 18 is installed below the friction disc 17. An adjustment plate 19 is slidably connected to the end of the adjustment column 18 away from the transmission column 16. A polishing mechanism 110 for polishing optical lenses is provided in the middle of the surface of the adjustment plate 19 away from the base plate 1. The adjustment plate 19 is slidably connected to the base plate 1. A groove 111 is opened on the surface of the adjustment plate 19 near the fixed plate 11. A movable sleeve 112 is slidably connected to the groove wall of the groove 111. A second spring is fixedly connected to the inner wall of the movable sleeve 112. The other end of the second spring is fixedly connected to the groove wall of the groove 111. A fixed post 1121 is fixedly connected to the surface of the movable sleeve 112 away from the base plate 1. A second U-shaped post 1122 is slidably connected to the outside of the fixed post 1121. A first rotating post 1123 is fixedly connected to the surface of the transmission post 16. The first rotating post 1123 and the second U-shaped post 1122 are fitted together and installed. A third spring 1124 is fixedly connected to one end of the surface of the second U-shaped post 1122 away from the first rotating post 1123. The other end of the third spring 1124 is fixedly connected to one end of the fixed post 1121 near the movable sleeve 112. It should be noted that, for circular optical lenses under inspection, when replacing them with optical lenses of different diameters, the replaced optical lens is simply placed between the fixed plate 11 and the adjusting plate 19. The adjusting plate 19 is then moved, causing the optical lens under inspection to contact the rubber pads 1125 on the surfaces of the multiple rotating blocks 4. This causes the T-shaped column 3 to move, resulting in relative movement between the T-shaped column 3 and the circular groove 2. The first spring is compressed, and its elastic force is used to adjust the position of the optical lens under inspection. Once the T-shaped column 3 is completely placed in the circular groove 2, it is no longer adjusted, thus completing the placement and positioning of the optical lens under inspection, which is then used for non-destructive testing. As the first motor 15 continues to drive the transmission column 16 to rotate, the first rotating column 1123 is simultaneously adjusted and rotated. During rotation, the first rotating column 1123 contacts the second U-shaped column 1122, causing it to move. This, in turn, moves the movable sleeve 112, and the optical lens under inspection is also adjusted and rotated, working in conjunction with the non-destructive testing mechanism 14 to ensure the testing effect. It should be noted that the optical lens to be tested is placed between the rotating block 4 and the movable sleeve 112, and in the middle of the wiping cloth surface. The first motor 15 drives the transmission column 16 to rotate, which in turn drives the friction disk 17 to rotate. The adjusting column 18 rotates with the friction disk 17, thereby adjusting the adjusting plate 19 to move closer to the fixed plate 11. Since two of the rotating rods 131 are in contact with the adjusting plate 19 and the other two rotating rods 131 are in contact with the fixed plate 11, the torsion spring deforms, and the first U-shaped column 13 also moves with the rotating rod 131. This allows the first U-shaped column 13 to be in the middle position between the adjusting plate 19 and the fixed plate 11. In other words, the non-destructive testing mechanism 14 is aligned with the axis of the optical lens to be tested, and the optical lens to be tested is stably positioned. There is no need to spend extra time fine-tuning the position after the optical lens is placed, saving time and improving the testing efficiency of the optical lens. It should be noted that during the process of the optical lens being tested being adjusted and moved together with the adjusting plate 19, the edge of the surface of the circular optical lens being tested first contacts the rubber pad 1125 on the surface of the rotating block 4 located below the non-destructive testing mechanism 14. This rotating block 4 is adjusted and moved first, and then the two adjacent rotating blocks 4 are adjusted and moved one after the other. In this process, as the compression degree of the first spring gradually increases, the optical lens being tested can be positioned. After the T-shaped column 3 is completely in the circular groove 2, the optical lens being tested can be positioned below the non-destructive testing mechanism 14. After the non-destructive testing is performed, if there are no scratches, pits or other defects on the surface of the optical lens being tested, the non-destructive testing of the next optical lens is performed. If there are defects, the polishing mechanism 110 polishes the surface of the optical lens.
[0019] Please seeFigure 1 , Figure 3 , Figure 4 and Figure 5 The inner side of the first U-shaped column 13 is symmetrically equipped with rotating rods 131 by torsion springs. Two of the rotating rods 131 are installed in conjunction with the edge of the surface of the adjusting plate 19, and the other two rotating rods 131 are installed in conjunction with the edge of the surface of the fixing plate 11. It should be noted that the rotating rod 131 and the first U-shaped column 13 are connected by a torsion spring. The multiple torsion springs have the same elastic coefficient. During the process of adjusting the plate 19 to move closer to the fixed plate 11, the two rotating rods 131 can be subjected to force and adjusted to rotate at the same time, so that the first U-shaped column 13 can be in the middle position between the adjusting plate 19 and the fixed plate 11.
[0020] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 and Figure 9 A fixed sleeve 31 is fixedly connected to the end of the T-shaped column 3 away from the rotating block 4. A first spring is sleeved on the outside of the fixed sleeve 31. A fixed rod 32 is slidably connected to the inner wall of the fixed sleeve 31. A movable plate 33 is fixedly connected to the end of the multiple fixed rods 32 away from the fixed sleeve 31. A first rack column 34 is fixedly connected to two sides of the movable plate 33. A transmission gear 35 is meshed on the surface of the first rack column 34. Both transmission gears 35 are rotatably connected to the side of the fixed plate 11. An arc plate 36 is fixedly connected to the surface of the two transmission gears 35 away from the fixed plate 11. A lifting plate 37 is installed at the end of the two arc plates 36 away from the bottom plate 1. A first round hole 38 is symmetrically opened on the surface of the lifting plate 37 near the edge. A cylinder 39 is slidably connected to the wall of the first round hole 38. A connecting spring 310 is sleeved on the outside of the cylinder 39. The upper ends of the multiple connecting springs 310 are fixedly connected to the lower surface of the lifting plate 37. The lower ends of the multiple connecting springs 310 are fixedly connected to the fixed plate 11. Multiple second circular holes 371 are equidistantly opened on the surface of the lifting plate 37, and a T-shaped limiting rod 372 is slidably connected to the hole wall of the second circular holes 371. The initial state of the connecting spring 310 is that it is stretched. It should be noted that during the adjustment and movement of the adjusting plate 19, the rubber pad 1125 on the surface of the movable sleeve 112 contacts the optical lens being tested, and the rubber pad 1125 on the surface of the rotating block 4 also contacts the surface of the optical lens being tested. As the adjusting plate 19 continues to be adjusted and moved, the rotating block 4 and the T-shaped column 3 move in the direction of compressing the first spring. The fixed sleeve 31 is adjusted and moved together with the T-shaped column 3, the first spring is compressed, the movable plate 33 is adjusted and moved together with the fixed sleeve 31, the first rack column 34 is adjusted and moved together with the movable plate 33, the transmission gear 35 is adjusted and rotated as the first rack column 34 moves, and the arc plate 36 is adjusted and rotated together with the transmission gear 35. Under the elastic force of the connecting spring 310, during the process of the arc plate 36 being adjusted and rotated, the lifting plate 37 is always in contact with the surface of the arc plate 36, and the multiple T-shaped limit rods 372 move in the direction of approaching the circular groove 2. The reaction force generated by the stretching of the connecting spring 310 acts on the surface of the lifting plate 37. Utilizing the elastic force of the connecting spring 310, the lifting plate 37 can move towards the fixed plate 11 after the arc plate 36 is adjusted and rotated. Part of the T-shaped limiting rod 372 contacts the end of the T-shaped column 3 near the first spring, while the other part of the T-shaped limiting rod 372 is inserted into the circular groove 2, thereby limiting the position of the multiple T-shaped columns 3 after adjustment. In other words, the T-shaped columns 3 are no longer adjusted or moved at this time, ensuring the stability of the T-shaped columns 3 and the rotating block 4, which in turn ensures the stability of the optical lens after it is placed and positioned. Furthermore, during the process of adjusting and rotating the optical lens, it can still ensure that the optical lens rotates around its central axis without changing its position, thus ensuring the detection effect. It should be noted that after the non-destructive testing of the surface of the optical lens being tested is completed, if there are defects such as scratches or pits, the polishing mechanism 110 will polish the surface of the optical lens being tested.
[0021] Please see Figure 3 and Figure 6 The upper surface of the base plate 1 is symmetrically provided with limiting grooves, and both limiting grooves are slidably connected to the adjusting plate 19; It should be noted that the setting of the limit groove can limit the movement of the adjustment plate 19, ensuring the stability of the adjustment plate 19 during the adjustment and movement process.
[0022] Please see Figure 1 The adjusting column 18 is rotatably connected to the base plate 1. A connecting block 181 is rotatably connected to the end of the adjusting column 18 away from the friction disk 17. A connecting groove is opened on the surface of the adjusting plate 19 away from the slide groove 111. The connecting block 181 is slidably connected to the connecting groove. It should be noted that during the adjustment of the adjusting column 18, the connecting block 181 can move relative to the connecting groove, and the connecting block 181 and the adjusting column 18 can rotate relative to each other, thereby adjusting the adjusting plate 19 to move towards or away from the fixed plate 11.
[0023] Rubber pads 1125 are fixedly connected to the surfaces of the movable sleeve 112 and the multiple rotating blocks 4; It should be noted that after the rubber pad 1125 comes into contact with the optical lens being tested, it can prevent damage to the edge of the optical lens being tested, and ensure sufficient friction during the adjustment of the rotation of the optical lens being tested, so that the optical lens being tested can be adjusted and rotated stably.
[0024] Please see Figure 1 and Figure 6 A through hole 113 is provided in the middle of the surface of the base plate 1, and a wiping cloth is installed on the wall of the through hole 113; It should be noted that a wiping cloth can be installed on the wall of the through hole 113. During the non-destructive testing of the lens surface, by adjusting the rotation of the lens under test, a relative rotation is generated between it and the wiping cloth, thereby wiping and cleaning the other untested surface of the lens. This can save time, quickly perform non-destructive testing on the other surface, and improve testing efficiency. It should be noted that the polishing mechanism 110 includes components such as an electric slide rail, a polishing head, a polishing spindle, and a telescopic rod; the non-destructive testing mechanism 14 includes components such as an image acquisition device, a stripe display device, a supplementary light source, and a sensor, which are existing mature technologies and will not be described in detail here. A controller can be installed on the side of the base plate 1 next to the mounting groove 12. The polishing mechanism 110, the non-destructive testing mechanism 14, and the first motor 15 are all electrically connected to the controller, which is controlled by a computer.
[0025] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of this invention is defined by the appended claims and their equivalents.
Claims
1. An optical lens polishing nondestructive testing device, comprising a base plate (1), a fixed plate (11) fixedly connected to one side of the upper surface of the base plate (1), mounting grooves (12) opened in two sidewalls of the base plate (1), a first U-shaped column (13) slidingly connected to the groove walls of the two mounting grooves (12), and a nondestructive testing mechanism (14) fixedly connected to the middle of the surface of the first U-shaped column (13), characterized in that: The surface of the fixed plate (11) is equidistantly provided with a circular groove (2), the groove wall of the circular groove (2) is slidably connected with a T-shaped column (3), one end of the T-shaped column (3) is fixedly connected with a first spring, the other end of the T-shaped column (3) is rotatably connected with a rotating block (4); The upper surface of the bottom plate (1) is fixedly connected with a first motor (15) away from the fixed plate (11), the output end of the first motor (15) is fixedly connected with a transmission column (16), one end of the transmission column (16) away from the first motor (15) is fixedly connected with a friction disc (17), the lower side of the friction disc (17) is fittedly installed with an adjusting column (18), one end of the adjusting column (18) away from the transmission column (16) is slidably connected with an adjusting plate (19), the surface of the adjusting plate (19) away from the bottom plate (1) is provided with a polishing mechanism (110) for polishing optical lenses, the adjusting plate (19) is slidably connected with the bottom plate (1), the surface of the adjusting plate (19) close to the fixed plate (11) is provided with a sliding groove (111), the sliding groove (111) is slidably connected with a movable sleeve (112), the inner wall of the movable sleeve (112) is fixedly connected with a second spring, the other end of the second spring is fixedly connected with the sliding groove (111). The surface of the adjusting plate (19) away from the bottom plate (1) is provided with a polishing mechanism (110) for polishing optical lenses, the adjusting plate (19) is slidably connected with the bottom plate (1), the surface of the adjusting plate (19) close to the fixed plate (11) is provided with a sliding groove (111), the sliding groove (111) is slidably connected with a movable sleeve (112), the inner wall of the movable sleeve (112) is fixedly connected with a second spring, the other end of the second spring is fixedly connected with the sliding groove (111).
2. A device for non-destructive testing of a polished optical lens according to claim 1, characterized in that: The inner side of the first U-shaped column (13) is symmetrically provided with a rotating rod (131) through a torsion spring, wherein two rotating rods (131) are fittedly installed with the surface edge of the adjusting plate (19), and the other two rotating rods (131) are fittedly installed with the surface edge of the fixed plate (11).
3. The apparatus for non-destructive testing of a polished optical lens according to claim 1, wherein: The T-shaped column (3) is fixedly connected with a fixed sleeve (31) away from one end of the rotating block (4), the first spring is sleeved outside the fixed sleeve (31), the fixed sleeve (31) is slidably connected with a fixed rod (32) on the inner wall, a plurality of fixed rods (32) are fixedly connected with a movable plate (33) away from one end of the fixed sleeve (31), two sides of the movable plate (33) are fixedly connected with a first rack column (34), the first rack column (34) is meshed with a transmission gear (35) on the surface, the two transmission gears (35) are rotatably connected with the side surface of the fixed plate (11), the surfaces of the two transmission gears (35) away from the fixed plate (11) are fixedly connected with an arc plate (36), two arc plates (36) are cooperatively mounted with a lifting plate (37) away from one end of the bottom plate (1), the surface of the lifting plate (37) is symmetrically provided with a first circular hole (38) near the edge, the first circular hole (38) is slidably connected with a cylinder (39), the outer side of the cylinder (39) is sleeved with a connecting spring (310), the upper ends of the plurality of connecting springs (310) are fixedly connected with the lower surface of the lifting plate (37), and the lower ends of the plurality of connecting springs (310) are fixedly connected with the fixed plate (11). The surface of the lifting plate (37) is equidistantly provided with a plurality of second circular holes (371), and the second circular holes (371) are slidably connected with T-shaped limiting rods (372).
4. The apparatus for non-destructive testing of a polished optical lens according to claim 3, wherein: The initial state of the connecting spring (310) is a stretched state.
5. The apparatus for non-destructive testing of a polished optical lens according to claim 1, wherein: The upper surface of the bottom plate (1) is symmetrically provided with a limiting groove, and the two limiting grooves are slidably connected with the adjusting plate (19).
6. The apparatus for non-destructive testing of a polished optical lens according to claim 1, wherein: The adjusting column (18) is rotatably connected with the bottom plate (1), the surface of the adjusting column (18) is rotatably connected with a connecting block (181) away from one end of the friction disc (17), the surface of the adjusting plate (19) away from the sliding groove (111) is provided with a connecting groove, and the connecting block (181) is slidably connected with the connecting groove.
7. The apparatus for non-destructive testing of a polished optical lens according to claim 1, wherein: The surface of the movable sleeve (112) and the plurality of rotating blocks (4) is fixedly connected with a rubber pad (1125).
8. The apparatus for non-destructive testing of a polished optical lens according to claim 1, wherein: The surface of the bottom plate (1) is provided with a through hole (113) in the middle, and the through hole (113) is cooperatively mounted with a wiping cloth.