An optical lens online appearance defect detection device

Abstract

The present invention relates to the technical field of optical lens detection, and discloses an online appearance defect detection device for optical lenses, comprising an annular base for installing all detection components; and also comprising: a power unit installed inside and outside the annular base for changing the position of the optical lens, the output end of the power unit is fixedly connected to a load-bearing connection disk, and the outer side of the load-bearing connection disk is fixedly connected to four groups of clamping units through elastic telescopic rods; the present invention sets the power unit so that the power unit can drive the load-bearing connection disk, the clamping unit and the linkage unit to work alternately, and the optical lens is clamped and fixed by the cooperation of the clamping unit and the linkage unit, and the load-bearing connection disk intermittently rotates to adjust the position of the clamping unit, so that the optical lenses placed in are transported and detected one by one, and the clamping unit is automatically released after the detection to complete the unloading, the operation is flexible and convenient, and it is beneficial to improve the efficiency of batch detection of optical lenses one by one.

Description

Technical Field

[0001] The present invention relates to the technical field of optical lens detection, and in particular to an online appearance defect detection device for optical lenses. Background Art

[0002] Optical glass lenses are generally made of high-purity silicon, boron, sodium, potassium, zinc, lead, magnesium, calcium, barium and other oxides mixed in a specific formula, melted at high temperature in a platinum crucible, stirred evenly with ultrasound to remove bubbles, and then slowly cooled over a long period of time to prevent the glass block from generating internal stress. During the processing, scratches, burrs, bubbles, gaps, threads and other defects are easily formed.

[0003] Currently, most methods used to detect lens defects rely on manual operation. These inspectors usually use a series of actions such as rotating and tilting the lens with the help of incandescent lamps to achieve multi-angle observation of the inspected lens. However, this method has many disadvantages. First, working under strong light for a long time can cause serious damage to the inspector's eyesight, leading to visual fatigue and even permanent damage. Second, this manual inspection process is inefficient and slow, and it is difficult to meet the needs of large-scale production.

[0004] In the prior art, although there are some automatic detection devices, these devices also have some limitations. During the automatic detection process, the lens needs to be mounted horizontally on a special fixture. Subsequently, an industrial camera is used to take images of the lens and upload these images to the detection system for analysis. Although this method reduces the labor intensity to a certain extent, manual operation is still required to put down and pick up the lens, which not only increases the complexity of the operation, but also limits the improvement of the detection speed. Summary of the invention

[0005] The purpose of the present invention is to provide an online appearance defect detection device for optical lenses to solve the problem proposed in the above background technology that manual operation is required to put down and pick up the lenses, which not only increases the complexity of the operation but also limits the improvement of the detection speed.

[0006] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: an online appearance defect detection device for an optical lens, comprising an annular base for installing all detection components; and also comprising: a power unit installed inside and outside the annular base for changing the position of the optical lens, the output end of the power unit being fixedly connected to a load-bearing connecting disk, the outer side of the load-bearing connecting disk being fixedly connected to four groups of clamping units through elastic telescopic rods, the interior of the annular base is also provided with a linkage unit that is transmission-connected to the power unit, and a detection unit is installed on the top of the annular base.

[0007] Preferably, the power unit includes a servo motor fixedly mounted on the rear side of the annular base, the output end of the servo motor is fixedly connected to a stepped shaft through a coupling, the stepped shaft is rotatably connected to the annular base through a bearing, two No. 1 incomplete gears are fixedly sleeved on the outer side of the stepped shaft, the toothed side of one of the No. 1 incomplete gears is meshed with a No. 1 transmission gear, the input end of the linkage unit is meshed with the toothed side of the other No. 1 incomplete gear, the center axis of the No. 1 transmission gear is installed with the annular base through a bearing, the center axis of the No. 1 transmission gear and the end located on the outside are connected to a rotating shaft through a pair of pulleys and a synchronous belt drive, the axis of the rotating shaft and the center axis of the annular base are in a coaxial position, the rotating shaft is installed with the annular base through a bearing seat, the end of the rotating shaft away from the annular base is fixedly connected to the center of the bearing connection disk, and the designed power unit can drive the bearing connection disk, the clamping unit and the linkage unit to work alternately.

[0008] Preferably, the clamping unit includes a mounting plate No. 1 fixedly connected to the outermost end of the bearing connection plate through an elastic telescopic rod, a bidirectional stud is installed on the side of the mounting plate No. 1 away from the annular base through a bearing seat, and clamping rings are symmetrically screwed on both sides of the bidirectional studs, and a limit block No. 1 is fixed to one end of the clamping ring, a limit rod is slidably sleeved on the limit block No. 1, and both ends of the limit rod are fixedly connected to the mounting plate No. 1, and a transmission mechanism is installed on the mounting plate No. 1. The designed clamping unit can clamp and fix the optical lens.

[0009] Preferably, the transmission mechanism includes a No. 2 transmission gear rotatably mounted on the No. 1 mounting plate, one end of the central axis of the No. 2 transmission gear is connected to the No. 1 transmission shaft through a pair of pulleys and a synchronous belt transmission, the No. 1 transmission shaft is installed with the No. 1 mounting plate through a bearing seat, one end of the No. 1 transmission shaft is provided with a bevel gear set, the output end of the bevel gear set is fixed with the No. 2 transmission shaft, the No. 2 transmission shaft is installed with the No. 1 mounting plate through a bearing seat, the middle part of the No. 2 transmission shaft is fixedly sleeved with a No. 3 transmission gear, the No. 3 transmission gear is meshed with a No. 4 transmission gear, the No. 4 transmission gear is fixedly sleeved in the middle part of the bidirectional stud, the output end of the linkage unit is transmission connected with the No. 2 transmission gear, and the designed transmission mechanism can provide power for the movement of the two clamping rings.

[0010] Preferably, the linkage unit includes a No. 5 transmission gear, a linkage gear is provided on one side of the No. 5 transmission gear, the linkage gear and the No. 5 transmission gear are connected through the same transmission rod, and the transmission rod is rotatably connected to the annular base, two groups of spur gear groups are symmetrically distributed on both sides of the linkage gear, the linkage gear is meshed and connected with the input end of the spur gear group, and the output end of the spur gear group is fixedly connected with a No. 3 transmission shaft, the No. 3 transmission shaft is rotatably connected to the annular base, and the end of the No. 3 transmission shaft is fixedly sleeved with a No. 2 incomplete gear, and the toothed side of the No. 2 incomplete gear is meshed and connected with the No. 2 transmission gear. The designed linkage unit can utilize the power of the power unit to drive the transmission mechanism to move.

[0011] Preferably, the detection unit includes a mounting frame fixedly connected to the annular base, a light source lamp is provided at the bottom of the mounting frame, a U-shaped plate is fixed below the top of the mounting frame, a fixing part is provided on the U-shaped plate, the U-shaped plate is detachably connected to an industrial camera via the fixing part, a cleaning part is installed at the bottom of the U-shaped plate, and the designed detection unit can perform photographic detection of appearance defects on the clamped optical lens.

[0012] Preferably, the fixing member includes an L-shaped block slidably plugged with the U-shaped plate, one end of the L-shaped block is fixedly connected to the industrial camera, a pull rod is slidably plugged on the U-shaped plate, a second limit block is fixed to one end of the pull rod, and an operating block is fixed to the other end, a spring is provided between the operating block and the U-shaped plate, and a limit groove matched with the second limit block is provided on one side of the L-shaped block, and the industrial camera can be quickly installed and disassembled conveniently through the fixing member.

[0013] Preferably, the cleaning member comprises a No. 3 mounting plate fixedly connected to the bottom of the U-shaped plate, an electric telescopic rod is fixed on the No. 3 mounting plate, a cleaning brush is fixed on the output end of the electric telescopic rod, and the designed cleaning member can clean the lens of the industrial camera.

[0014] Preferably, an anti-skid pad is fixed on the inner side of the clamp ring, and the anti-skid pad is made of rubber material to increase the friction force when the clamp ring clamps the optical lens.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. The present invention sets a power unit so that the power unit can drive the bearing connection plate, the clamping unit and the linkage unit to work alternately, and the optical lens is clamped and fixed by the cooperation of the clamping unit and the linkage unit. The bearing connection plate intermittently rotates to adjust the position of the clamping unit, and the optical lenses placed in are transported and tested one by one. After the test, the clamping unit automatically releases to complete the unloading. The operation is flexible and convenient, which is conducive to improving the efficiency of batch testing of optical lenses one by one.

[0017] 2. The fasteners designed in the present invention can easily realize the rapid installation and disassembly of industrial cameras, which helps to improve the overall work efficiency and production flexibility, reduce waiting and adjustment time, and thus significantly improve the time utilization and equipment utilization in the production process. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0019] Figure 2 It is a side view of the present invention;

[0020] Figure 3 It is a structural schematic diagram of the power unit of the present invention;

[0021] Figure 4 It is a structural schematic diagram of the clamping unit of the present invention;

[0022] Figure 5 It is a structural schematic diagram of the transmission mechanism of the present invention;

[0023] Figure 6 It is a schematic diagram of the linkage unit structure of the present invention;

[0024] Figure 7 It is a schematic diagram of the structure of the detection unit of the present invention;

[0025] Figure 8 It is a schematic diagram of the structure of the fixing part and the cleaning part of the present invention.

[0026] In the figure: 1. annular base; 2. power unit; 3. bearing connection plate; 4. clamping unit; 5. linkage unit; 6. detection unit; 7. servo motor; 8. stepped shaft; 9. No. 1 incomplete gear; 10. No. 1 transmission gear; 11. rotating shaft; 12. No. 1 mounting plate; 13. two-way stud; 14. clamping ring; 15. No. 1 limit block; 16. limit rod; 17. transmission mechanism; 18. No. 2 transmission gear; 19. No. 1 transmission shaft; 20. bevel gear set; 21. No. 2 transmission shaft; 22. No. 3 transmission Gear; 23. Transmission gear No. 4; 24. Transmission gear No. 5; 25. Linkage gear; 26. Flat gear set; 27. Transmission shaft No. 3; 28. Incomplete gear No. 2; 29. ​​Mounting frame; 30. Light source lamp; 31. U-shaped plate; 32. Fixing piece; 33. Industrial camera; 34. Cleaning piece; 35. L-shaped block; 36. Pull rod; 37. Limit block No. 2; 38. Operating block; 39. Spring; 40. Limiting groove; 41. Mounting plate No. 3; 42. Electric telescopic rod; 43. Cleaning brush; 44. Anti-slip mat. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] Example 1: Please refer to Figure 1 and Figure 2 The figure shows an online appearance defect detection device for an optical lens, comprising an annular base 1 for mounting all detection components; and also comprising: a power unit 2 installed inside and outside the annular base 1 for changing the position of the optical lens, the output end of the power unit 2 being fixedly connected with a load-bearing connection disk 3, the outer side of the load-bearing connection disk 3 being fixedly connected with four groups of clamping units 4 through elastic telescopic rods, the interior of the annular base 1 is also provided with a linkage unit 5 which is transmission-connected with the power unit 2, and a detection unit 6 is installed on the top of the annular base 1.

[0029] In this solution, the power unit 2 is designed so that the power unit 2 can drive the supporting connection plate 3, the clamping unit 4 and the linkage unit 5 to work alternately. The optical lens is clamped and fixed by the cooperation of the clamping unit 4 and the linkage unit 5. The supporting connection plate 3 intermittently rotates to adjust the position of the clamping unit 4, and the optical lenses placed in are transported and tested one by one. After the test, the clamping unit 4 automatically releases to complete the unloading. The operation is flexible and convenient, which is conducive to improving the efficiency of batch testing of optical lenses one by one.

[0030] For further information, see Figure 3 The power unit 2 includes a servo motor 7 fixedly mounted on the rear side of the annular base 1, the output end of the servo motor 7 is fixedly connected to a stepped shaft 8 through a coupling, the stepped shaft 8 is rotatably connected to the annular base 1 through a bearing, two No. 1 incomplete gears 9 are fixedly sleeved on the outer side of the stepped shaft 8, one of the No. 1 incomplete gears 9 has a toothed side meshed with a No. 1 transmission gear 10, the input end of the linkage unit 5 is meshed with the toothed side of the other No. 1 incomplete gear 9, the center axis of the No. 1 transmission gear 10 is installed with the annular base 1 through a bearing, the center axis of the No. 1 transmission gear 10 and one end located on the outside are connected to a rotating shaft 11 through a pair of pulleys and a synchronous belt drive, the axis of the rotating shaft 11 and the center axis of the annular base 1 are in a coaxial position, the rotating shaft 11 is installed with the annular base 1 through a bearing seat, and the end of the rotating shaft 11 away from the annular base 1 is fixedly connected to the center of the bearing connection disk 3;

[0031] The output end of the servo motor 7 drives the stepped shaft 8 to rotate, the stepped shaft 8 drives the two No. 1 incomplete gears 9 to rotate, the No. 1 incomplete gear 9 drives the No. 1 transmission gear 10 to rotate, the No. 1 transmission gear 10 drives the rotating shaft 11 to rotate through the pulley and the synchronous belt, the rotating shaft 11 drives the bearing connecting plate 3 to rotate, thereby driving the four groups of clamping units 4 to rotate alternately, clamping and releasing the optical lenses one by one.

[0032] For further information, see Figure 4 and Figure 5 The clamping unit 4 includes a No. 1 mounting plate 12 fixedly connected to the outermost end of the bearing connection plate 3 through an elastic telescopic rod, and a bidirectional stud 13 is installed on the side of the No. 1 mounting plate 12 away from the annular base 1 through a bearing seat, and clamp rings 14 are symmetrically screwed on both sides of the bidirectional stud 13, and a No. 1 limit block 15 is fixed to one end of the clamp ring 14, and a limit rod 16 is slidably sleeved on the No. 1 limit block 15, and both ends of the limit rod 16 are fixedly connected to the No. 1 mounting plate 12, and a transmission mechanism 17 is installed on the No. 1 mounting plate 12;

[0033] The transmission mechanism 17 includes a No. 2 transmission gear 18 rotatably mounted on the No. 1 mounting plate 12, one end of the central axis of the No. 2 transmission gear 18 is connected to the No. 1 transmission shaft 19 through a pair of pulleys and a synchronous belt transmission, the No. 1 transmission shaft 19 is installed with the No. 1 mounting plate 12 through a bearing seat, one end of the No. 1 transmission shaft 19 is provided with a bevel gear set 20, the output end of the bevel gear set 20 is fixed with a No. 2 transmission shaft 21, the No. 2 transmission shaft 21 is installed with the No. 1 mounting plate 12 through a bearing seat, the middle part of the No. 2 transmission shaft 21 is fixedly sleeved with a No. 3 transmission gear 22, the No. 3 transmission gear 22 is meshed with a No. 4 transmission gear 23, the No. 4 transmission gear 23 is fixedly sleeved in the middle part of the bidirectional stud 13, and the output end of the linkage unit 5 is transmission-connected with the No. 2 transmission gear 18;

[0034] An anti-skid pad 44 is fixed on the inner side of the clamp ring 14 . The anti-skid pad 44 is made of rubber material to increase the friction force when the clamp ring 14 clamps the optical lens.

[0035] The principle of clamping the optical lens by the clamping unit 4 is as follows: the linkage unit 5 drives the No. 2 transmission gear 18 to rotate, the No. 2 transmission gear 18 drives the No. 1 transmission shaft 19 to rotate, the No. 1 transmission shaft 19 drives the No. 2 transmission shaft 21 to rotate through the bevel gear set 20, the No. 2 transmission shaft 21 drives the No. 3 transmission gear 22 to rotate, the No. 3 transmission gear 22 drives the No. 4 transmission gear 23 to rotate, the No. 4 transmission gear 23 drives the bidirectional stud 13 to rotate, the bidirectional stud 13 drives the two clamping rings 14 to move closer to each other, thereby clamping the inserted optical lens.

[0036] For further information, see Figure 6 The linkage unit 5 includes a fifth transmission gear 24, a linkage gear 25 is provided on one side of the fifth transmission gear 24, the linkage gear 25 and the fifth transmission gear 24 are connected through the same transmission rod, and the transmission rod is rotatably connected to the annular base 1, two groups of flat gear sets 26 are symmetrically distributed on both sides of the linkage gear 25, the linkage gear 25 is meshed and connected with the input end of the flat gear set 26, and the output end of the flat gear set 26 is fixedly connected with a third transmission shaft 27, the third transmission shaft 27 is rotatably connected to the annular base 1, and the end of the third transmission shaft 27 is fixedly sleeved with a second incomplete gear 28, and the toothed side of the second incomplete gear 28 is meshed and connected with the second transmission gear 18;

[0037] When one of the incomplete gears No. 1 9 is meshed with the transmission gear No. 5 24, the transmission gear No. 5 24 will drive the linkage gear 25 to rotate, the linkage gear 25 will drive the flat gear sets 26 on both sides to transmit, and finally drive the transmission shaft No. 3 27 to rotate, the transmission shaft No. 3 27 will drive the incomplete gear No. 2 28 to rotate, and the toothed side of the incomplete gear No. 2 28 will drive the transmission gear No. 2 18 to rotate.

[0038] This solution is a process for batch testing of optical lenses;

[0039] First, put the optical lens on the top clamping unit 4. At this time, the No. 2 transmission gear 18 and the No. 2 incomplete gear 28 are just in meshing state, and one of the No. 1 incomplete gears 9 is just meshing with the No. 5 transmission gear 24, and the other No. 1 incomplete gear 9 is out of meshing with the No. 1 transmission gear 10. The bearing connection plate 3 does not rotate, and the rotation torque of the stepped shaft 8 drives the No. 2 incomplete gear 28 to rotate through the transmission action of the linkage unit 5, and then drives the clamping unit 4 to move to clamp the optical lens. After clamping, the appearance is photographed for defect detection using the detection unit 6;

[0040] Afterwards, the servo motor 7 continues to drive the stepped shaft 8 to rotate half a circle, so that the upper No. 2 transmission gear 18 and the No. 2 incomplete gear 28 are just in a disengaged state, and one of the No. 1 incomplete gears 9 and the No. 1 transmission gear 10 is just engaged, and then the stepped shaft 8 continues to rotate to drive the No. 1 transmission gear 10 to rotate a quarter of a circle, and the No. 1 transmission gear 10 drives the rotating shaft 11 to rotate through the pulley and the synchronous belt, and the rotating shaft 11 drives the bearing connecting plate 3 to rotate, thereby driving the four groups of clamping units 4 to rotate alternately by ninety degrees. At this time, the position of the last detected optical lens is also rotated by ninety degrees, and then a new optical lens is placed in the clamping ring 14, and the next round of clamping and rotation operations are carried out, and then the optical lenses are clamped and released one by one.

[0041] Example 2: Please refer to Figure 7 and Figure 8 This embodiment further explains the first embodiment, and the difference lies in that the installation of the industrial camera 33 is optimized.

[0042] Specifically, the detection unit 6 includes a mounting frame 29 fixedly connected to the annular base 1, a light source lamp 30 is provided at the bottom of the mounting frame 29, a U-shaped plate 31 is fixed below the top of the mounting frame 29, a fixing member 32 is provided on the U-shaped plate 31, an industrial camera 33 is detachably connected to the U-shaped plate 31 through the fixing member 32, and a cleaning member 34 is installed at the bottom of the U-shaped plate 31;

[0043] At the same time, the fixing member 32 includes an L-shaped block 35 slidably plugged with the U-shaped plate 31, one end of the L-shaped block 35 is fixedly connected to the industrial camera 33, a pull rod 36 is slidably plugged on the U-shaped plate 31, one end of the pull rod 36 is fixed with a second limit block 37, and the other end is fixed with an operating block 38, a spring 39 is provided between the operating block 38 and the U-shaped plate 31, and a limit groove 40 adapted to the second limit block 37 is opened on one side of the L-shaped block 35;

[0044] During installation, the L-shaped block 35 of the industrial camera 33 is inserted into the U-shaped plate 31. At this time, the operating block 38 is pulled at the same time. The operating block 38 drives the pull rod 36 to move, thereby stretching the spring 39 and driving the second limit block 37 to move away from the L-shaped block 35. After the L-shaped block 35 is inserted, the operating block 38 is released, and the spring 39 restores the elastic force, driving the second limit block 37 to be stuck in the limit groove 40 again, thereby fixing the L-shaped block 35 and the U-shaped plate 31.

[0045] It should be noted that: through the designed fixing 32, the industrial camera 33 can be quickly installed and disassembled very conveniently, which helps to improve the overall work efficiency and production flexibility, reduce waiting and adjustment time, and thus significantly improve the time utilization and equipment utilization in the production process.

[0046] Example 3: Please refer to Figure 8 This embodiment further explains other embodiments, and the difference lies in optimizing the use environment of the industrial camera 33.

[0047] Specifically, the detection unit 6 includes a mounting frame 29 fixedly connected to the annular base 1, a light source lamp 30 is provided at the bottom of the mounting frame 29, a U-shaped plate 31 is fixed below the top of the mounting frame 29, a fixing member 32 is provided on the U-shaped plate 31, the U-shaped plate 31 is detachably connected to the industrial camera 33 through the fixing member 32, and a cleaning member 34 is installed at the bottom of the U-shaped plate 31; the cleaning member 34 includes a No. 3 mounting plate 41 fixedly connected to the bottom of the U-shaped plate 31, an electric telescopic rod 42 is fixed on the No. 3 mounting plate 41, and a cleaning brush 43 is fixed at the output end of the electric telescopic rod 42. When dust appears on the lens of the industrial camera 33, by starting the movement of the electric telescopic rod 42, the reciprocating telescopic movement of the electric telescopic rod 42 drives the cleaning brush 43 to move, and the movement of the cleaning brush 43 will wipe off the dust on the lens of the industrial camera 33, effectively wiping the dust on the surface of the lens of the industrial camera 33, thereby restoring the clarity and imaging quality of the lens.

[0048] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0049] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An optical lens online appearance defect detection device, comprising: An annular base (1) for mounting all detection components; It is characterized by: also including: A power unit (2) for changing the position of the optical lens is installed inside or outside the annular base (1); the output end of the power unit (2) is fixedly connected to a load-bearing connection disk (3); the outer side of the load-bearing connection disk (3) is fixedly connected to four groups of clamping units (4) via elastic telescopic rods; the inside of the annular base (1) is also provided with a linkage unit (5) for transmission connection with the power unit (2); and a detection unit (6) is installed on the top of the annular base (1); The power unit (2) comprises a servo motor (7) fixedly mounted on the rear side of the annular base (1); the output end of the servo motor (7) is fixedly connected to a stepped shaft (8) via a coupling; the stepped shaft (8) is rotatably connected to the annular base (1) via a bearing; two first incomplete gears (9) are fixedly sleeved on the outer side of the stepped shaft (8); a toothed side of one of the first incomplete gears (9) is meshed with a first transmission gear (10); an input end of the linkage unit (5) is meshed with a toothed side of another of the first incomplete gears (9); The central axis of the first transmission gear (10) is connected to the annular base (1) by side meshing, the central axis of the first transmission gear (10) is installed with the annular base (1) via a bearing, the central axis of the first transmission gear (10) and one end located outside is connected to a rotating shaft (11) via a pair of pulleys and a synchronous belt transmission, the axis of the rotating shaft (11) and the central axis of the annular base (1) are in a coaxial position, the rotating shaft (11) is installed with the annular base (1) via a bearing seat, and the end of the rotating shaft (11) away from the annular base (1) is fixedly connected to the center of the bearing connection disk (3); The clamping unit (4) comprises a No. 1 mounting plate (12) fixedly connected to the outermost end of the bearing connection plate (3) via an elastic telescopic rod, a bidirectional stud (13) is installed on the side of the No. 1 mounting plate (12) away from the annular base (1) via a bearing seat, and clamping rings (14) are symmetrically screwed on both sides of the bidirectional stud (13), and a No. 1 limit block (15) is fixed to one end of the clamping ring (14), and a limit rod (16) is slidably sleeved on the No. 1 limit block (15), and both ends of the limit rod (16) are fixedly connected to the No. 1 mounting plate (12), and a transmission mechanism (17) is installed on the No. 1 mounting plate (12); The transmission mechanism (17) comprises a second transmission gear (18) rotatably mounted on the first mounting plate (12); one end of the central axis of the second transmission gear (18) is connected to a first transmission shaft (19) through a pair of pulleys and a synchronous belt transmission; the first transmission shaft (19) is mounted on the first mounting plate (12) through a bearing seat; one end of the first transmission shaft (19) is provided with a bevel gear set (20); a second transmission shaft (21) is fixedly mounted on the output end of the bevel gear set (20); the second transmission shaft (21) is mounted on the first mounting plate (12) through a bearing seat; a third transmission gear (22) is fixedly sleeved on the middle part of the second transmission shaft (21); the third transmission gear (22) is meshed with a fourth transmission gear (23); the fourth transmission gear (23) is fixedly sleeved on the middle part of the bidirectional stud (13); and the output end of the linkage unit (5) is transmission-connected to the second transmission gear (18); The linkage unit (5) comprises a fifth transmission gear (24), a linkage gear (25) is provided on one side of the fifth transmission gear (24), the linkage gear (25) and the fifth transmission gear (24) are connected via a same transmission rod, and the transmission rod is rotationally connected to the annular base (1), two groups of flat gear sets (26) are symmetrically distributed on both sides of the linkage gear (25), the linkage gear (25) is meshedly connected with the input end of the flat gear set (26), the output end of the flat gear set (26) is fixedly connected with a third transmission shaft (27), the third transmission shaft (27) is rotationally connected to the annular base (1), the end of the third transmission shaft (27) is fixedly sleeved with a second incomplete gear (28), and the toothed side of the second incomplete gear (28) is meshedly connected with the second transmission gear (18); First, the optical lens is placed on the uppermost clamping unit (4), at which time the No. 2 transmission gear (18) and the No. 2 incomplete gear (28) are just in meshing state, and one of the No. 1 incomplete gears (9) and the No. 5 transmission gear (24) is just meshing, and the other No. 1 incomplete gear (9) and the No. 1 transmission gear (10) are disengaged, the bearing connection plate (3) does not rotate, and the rotation torque of the stepped shaft (8) just drives the No. 2 incomplete gear (28) to rotate through the transmission action of the linkage unit (5), thereby just driving the clamping unit (4) to move to clamp the optical lens, and after clamping, the appearance is photographed for defect detection using the detection unit (6); Afterwards, the servo motor (7) continues to drive the stepped shaft (8) to rotate half a circle, so that the second transmission gear (18) and the second incomplete gear (28) above are just in a disengaged state, and one of the first incomplete gears (9) and the first transmission gear (10) is just in meshing state, and then the stepped shaft (8) continues to rotate to drive the first transmission gear (10) to rotate a quarter of a circle, and the first transmission gear (10) drives the rotating shaft (11) to rotate through the pulley and the synchronous belt, and the rotating shaft (11) drives the bearing connection plate (3) to rotate, thereby driving the four groups of the clamping units (4) to rotate alternately by 90 degrees. At this time, the position of the last optical lens that has been detected is also rotated by 90 degrees, and then a new optical lens is placed in the clamping ring (14) to perform the next round of clamping and rotating operations, and then the optical lenses are clamped and released one by one.

2. The optical lens online appearance defect detection device according to claim 1, characterized in that: The detection unit (6) comprises a mounting frame (29) fixedly connected to the annular base (1), a light source lamp (30) being provided at the bottom of the mounting frame (29), a U-shaped plate (31) being fixed below the top of the mounting frame (29), a fixing piece (32) being provided on the U-shaped plate (31), an industrial camera (33) being detachably connected to the U-shaped plate (31) via the fixing piece (32), and a cleaning piece (34) being installed at the bottom of the U-shaped plate (31).

3. The optical lens online appearance defect detection device according to claim 2, characterized in that: The fixing member (32) comprises an L-shaped block (35) slidably plugged into the U-shaped plate (31), one end of the L-shaped block (35) being fixedly connected to the industrial camera (33), a pull rod (36) being slidably plugged into the U-shaped plate (31), one end of the pull rod (36) being fixed with a second limit block (37), and the other end of the pull rod (36) being fixed with an operating block (38), a spring (39) being provided between the operating block (38) and the U-shaped plate (31), and a limit groove (40) matching the second limit block (37) being provided on one side of the L-shaped block (35).

4. The optical lens online appearance defect detection device according to claim 2, characterized in that: The cleaning member (34) comprises a third mounting plate (41) fixedly connected to the bottom of the U-shaped plate (31), an electric telescopic rod (42) being fixed to the third mounting plate (41), and a cleaning brush (43) being fixed to the output end of the electric telescopic rod (42).

5. The optical lens online appearance defect detection device according to claim 1, characterized in that: An anti-skid pad (44) is fixed on the inner side of the clamp ring (14), and the anti-skid pad (44) is made of rubber material.

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