Photovoltaic glass defect detection method and system

Abstract

The invention provides a photovoltaic glass defect detection method and system, and relates to the technical field of detection, and the method comprises the following steps: fixing to-be-detected photovoltaic glass through an adjustable clamp; the light source is arranged on the lower side of the photovoltaic glass to be detected; controlling a detection device on the upper side of the to-be-detected photovoltaic glass to move, and collecting an image of the to-be-detected photovoltaic glass; the method comprises the following steps: collecting an image of photovoltaic glass to be detected, analyzing and processing the collected image, completing defect detection and movement of a detection device, collecting the image of the photovoltaic glass to be detected in all directions, and avoiding missing parts, a specific defect detection method in the step 4 refers to a photovoltaic glass defect detection method and device CN201710982581, an adjustable clamp can be adjusted, and the detection accuracy is improved. According to the photovoltaic glass detection fixture, the photovoltaic glass detection fixture is arranged, so that the photovoltaic glass detection fixture is suitable for to-be-detected photovoltaic glass of different sizes, and the technical problem that when existing photovoltaic glass is detected, the photovoltaic glass needs to be detected after being fixed by a fixture, but the photovoltaic glass of different sizes is difficult to fix by adopting the same fixture is solved.

Description

Technical Field

[0001] The present invention relates to the field of detection technology, and in particular to a photovoltaic glass defect detection method and system. Background Art

[0002] Photovoltaic glass is an important auxiliary material in the production process of photovoltaic modules. It can effectively protect photovoltaic modules from impacts of external objects. Photovoltaic glass needs to be tempered during the production stage. There may be defects such as bubbles, stones or inclusions inside and on its surface. If there are defects in photovoltaic glass, it may cause the photovoltaic glass to explode, resulting in waste of resources and safety hazards. If there are defects inside and on the surface of photovoltaic glass, it will cause the photovoltaic glass to explode. Therefore, quality inspection of photovoltaic glass is very necessary;

[0003] When testing existing photovoltaic glass, it is necessary to fix the photovoltaic glass with a clamp before testing. However, it is difficult to fix photovoltaic glasses of different sizes with the same clamp. Summary of the invention

[0004] The present invention provides a photovoltaic glass defect detection method and system to solve the technical problem that the photovoltaic glass needs to be fixed with a clamp before detection, but it is difficult to fix photovoltaic glasses of different sizes with the same clamp.

[0005] In order to solve the above technical problems, the present invention discloses a photovoltaic glass defect detection method, comprising the following steps:

[0006] Step 1: Fix the photovoltaic glass to be tested with an adjustable clamp;

[0007] Step 2: Light source on the underside of the photovoltaic glass to be inspected;

[0008] Step 3: Control the detection device on the upper side of the photovoltaic glass to be detected to move and collect an image of the photovoltaic glass to be detected;

[0009] Step 4: Analyze and process the image acquired in step 3 to complete defect detection.

[0010] A system for photovoltaic glass defect detection is used to implement a method for photovoltaic glass defect detection, including a base plate, a light source is fixedly provided in the middle of the upper end of the base plate, a support frame is fixedly provided on the left side of the upper end of the base plate, the support frame is fixedly connected to the left side of the lower end of the top plate, an adjustable clamp is slidably provided between the base plate and the top plate, the adjustable clamp is fixedly connected to a detection device, and the detection device is fixedly arranged on the lower end of the top plate.

[0011] Preferably, the adjustable clamp includes a sliding bracket, the lower end of the sliding bracket is slidingly connected to the right side of the upper end of the base plate, the upper end of the sliding bracket is slidingly connected to a sliding groove, the sliding groove is arranged on the right side of the lower end of the top plate, a threaded rod is rotatably provided in the sliding groove, the threaded portion of the threaded rod is threadedly connected to the sliding bracket, and the cylindrical section of the threaded rod passes through the side end of the sliding groove and is fixedly connected to a gear.

[0012] Preferably, a fixed block is fixedly arranged at the left end of the sliding bracket, a sliding groove 2 is fixedly arranged at the left end of the fixed block, a threaded rod 2 is rotatably arranged in the sliding groove 2, the threaded section of the threaded rod 2 is threadedly connected to the sliding block on the right side, the sliding block on the right side is slidably connected to the sliding groove 2, and the cylindrical section of the threaded rod 2 passes through the upper end of the sliding groove 2 and is connected to the driving assembly.

[0013] Preferably, a guide block is fixedly provided at the right end of the support frame, a guide groove is provided on the right side of the guide block, and the guide groove is slidably connected to the sliding block on the left, and a connecting rod is connected between the rear ends of the sliding block on the left and the sliding block on the right.

[0014] Preferably, sliding groove three is provided at one end of the sliding blocks on the left and right sides that are close to each other, and sliding groove three is slidably connected to the clamping block. A fixing groove is provided at one end of the clamping block close to the light source, and a sliding hole is provided at the upper end of the fixing groove. A threaded sleeve is slidably provided in the sliding hole, and the threaded sleeve is threadedly connected to the threaded section of threaded rod three. The cylindrical section of threaded rod three passes through the upper end of the sliding hole and is fixedly connected to an external operating block, and the lower end of the threaded sleeve is rotatably connected to the contact block.

[0015] Preferably, a rack is fixedly provided at the lower end of the clamping block, the rack is meshed with a gear, the gear is fixedly connected to the motor one through the motor shaft, and the motor one is fixedly arranged in the sliding groove three.

[0016] Preferably, the detection device includes a mounting block, which is fixedly connected to the sliding bracket, the mounting block is fixedly arranged at the lower end of the top plate, the lower end of the mounting block is provided with a sliding groove four, a threaded rod four is rotatably provided in the sliding groove four, the threaded section of the threaded rod four is threadedly connected to the threaded block, the threaded block is slidably connected to the sliding groove four, the lower end of the threaded block is fixedly connected to the industrial camera, the cylindrical section of the threaded rod four passes through the side end of the sliding groove four and the connecting block and is fixedly connected to the motor two, and the motor two is fixedly connected to the top plate through the fixing plate.

[0017] Preferably, the driving assembly includes an L-shaped plate, the horizontal end of the L-shaped plate is rotatably connected to bevel gear one, the vertical end of the L-shaped plate is rotatably connected to bevel gear two, bevel gear one is meshed with bevel gear two, the cylindrical section of threaded rod two is rotatably connected to the horizontal end of the L-shaped plate, the cylindrical section of threaded rod two is fixedly connected to bevel gear one, bevel gear two is fixedly connected to the sliding rod, the vertical end of the L-shaped plate is slidably connected to the sliding rod, the sliding rod is rotatably connected to the mounting block, and the sliding rod passes through the connecting block and is fixedly connected to gear three.

[0018] Preferably, gear 2 is meshed between gear 1 and gear 3, gear 2 is fixedly connected to the sliding sleeve, the sliding sleeve is movably connected to the cylindrical section of threaded rod 4, and the sliding sleeve is matched with the positioning hole on the connecting block.

[0019] The technical solution of the present invention is further described in detail below through the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0021] Figure 1 It is a structural schematic diagram of the present invention;

[0022] Figure 2 for Figure 1 A schematic diagram of the enlarged structure of region A;

[0023] Figure 3 It is a schematic diagram of the sliding block structure of the present invention.

[0024] In the figure: 1. top plate; 2. bottom plate; 3. light source; 4. guide block; 5. sliding block; 6. fixing groove; 7. threaded rod three; 8. threaded sleeve; 9. photovoltaic glass to be tested; 10. fixing block; 11. sliding groove two; 12. sliding bracket; 13. rack; 14. gear; 15. motor one; 16. mounting block; 17. threaded rod four; 18. industrial camera; 19. sliding groove four; 20. clamping block; 21. threaded rod one; 22. sliding groove one; 23. support frame; 24. gear one; 25. fixing plate; 26. motor two; 27. sliding sleeve; 28. connecting block; 29. ​​positioning hole; 30. gear two; 31. gear three; 32. sliding rod; 33. threaded rod two; 34. L-shaped plate; 35. bevel gear one; 36. bevel gear two; 37. contact block; 38. sliding groove three. DETAILED DESCRIPTION

[0025] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0026] In addition, in the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes, and do not specifically refer to the order or sequence, nor are they used to limit the present invention. They are only used to distinguish components or operations described with the same technical terms, and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions and technical features between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0027] The present invention provides the following embodiments

[0028] Example 1

[0029] The embodiment of the present invention provides a photovoltaic glass defect detection method, such as Figure 1-Figure 3 As shown, the following steps are included:

[0030] Step 1: Fix the photovoltaic glass 9 to be tested by an adjustable clamp;

[0031] Step 2: A light source 3 is placed on the lower side of the photovoltaic glass 9 to be inspected;

[0032] Step 3: Control the detection device on the upper side of the photovoltaic glass 9 to be detected to move and collect an image of the photovoltaic glass 9 to be detected;

[0033] Step 4: Analyze and process the image acquired in step 3 to complete defect detection.

[0034] The beneficial effects of the above technical solution are:

[0035] The detection device moves to collect the image of the photovoltaic glass 9 to be detected in all directions to avoid missing parts. The specific defect detection method in step 4 refers to CN201710982581 - A defect detection method and device for photovoltaic glass. The adjustable clamp can be adjusted to adapt to photovoltaic glasses 9 of different sizes to be detected, which solves the technical problem that the existing photovoltaic glass needs to be fixed with a clamp before detection, but it is difficult to fix photovoltaic glasses of different sizes with the same clamp.

[0036] Example 2

[0037] A photovoltaic glass defect detection system is used to implement a photovoltaic glass defect detection method, such as Figure 1-Figure 3As shown, it includes a bottom plate 2, a light source 3 is fixedly provided at the middle of the upper end of the bottom plate 2, a support frame 23 is fixedly provided at the left side of the upper end of the bottom plate 2, the support frame 23 is fixedly connected to the left side of the lower end of the top plate 1, an adjustable clamp is slidably provided between the bottom plate 2 and the top plate 1, the adjustable clamp is fixedly connected to the detection device, and the detection device is fixedly arranged at the lower end of the top plate 1;

[0038] The adjustable clamp includes a sliding bracket 12, the lower end of the sliding bracket 12 is slidably connected to the upper right side of the bottom plate 2, the upper end of the sliding bracket 12 is slidably connected to a sliding groove 22, the sliding groove 22 is arranged on the lower right side of the top plate 1, a threaded rod 21 is rotatably arranged in the sliding groove 22, the threaded portion of the threaded rod 21 is threadedly connected to the sliding bracket 12, and the cylindrical section of the threaded rod 21 passes through the side end of the sliding groove 22 and is fixedly connected to a gear 24;

[0039] A fixed block 10 is fixedly arranged at the left end of the sliding bracket 12, and a sliding groove 11 is fixedly arranged at the left end of the fixed block 10, a threaded rod 33 is rotatably arranged in the sliding groove 11, a threaded section of the threaded rod 33 is threadedly connected with the sliding block 5 on the right side, the sliding block 5 on the right side is slidably connected with the sliding groove 11, and a cylindrical section of the threaded rod 33 passes through the upper end of the sliding groove 11 and is connected with the driving assembly;

[0040] A guide block 4 is fixedly provided at the right end of the support frame 23, a guide groove is provided on the right side of the guide block 4, and the guide groove is slidably connected to the sliding block 5 on the left side, and a connecting rod is connected between the rear ends of the sliding block 5 on the left side and the sliding block 5 on the right side;

[0041] The sliding blocks 5 on the left and right sides are provided with sliding grooves 38 at the ends close to each other, and the sliding grooves 38 are slidably connected with the clamping block 20. The clamping block 20 is provided with a fixing groove 6 at the end close to the light source 3. The upper end of the fixing groove 6 is provided with a sliding hole, and a threaded sleeve 8 is slidably provided in the sliding hole. The threaded sleeve 8 is threadedly connected with the threaded section of the threaded rod 3 7. The cylindrical section of the threaded rod 3 7 passes through the upper end of the sliding hole and is fixedly connected with the external operating block. The lower end of the threaded sleeve 8 is rotatably connected with the contact block 37.

[0042] The beneficial effects of the above technical solution are:

[0043] When fixing photovoltaic glasses 9 to be tested of different sizes, firstly rotate the gear 24, the gear 24 drives the threaded rod 21 to rotate, and when the threaded rod 21 rotates, it drives the sliding bracket 12 to slide left and right along the sliding groove 22, and the left and right positions of the sliding bracket 12 can be adjusted according to the left and right lengths of the photovoltaic glass 9 to be tested, thereby adjusting the distance between the sliding bracket 12 and the support frame 23, and adjusting the distance between the sliding blocks 5 on the left and right sides. The fixed groove 6 in the sliding block 5 can limit the left and right ends of the photovoltaic glass 9 to be tested, so as to facilitate the left and right directions. Photovoltaic glasses 9 to be detected of different lengths are placed in the fixing groove 6. The length of the fixing groove 6 along the front-to-back direction is long enough, and there is no need to consider photovoltaic glasses 9 to be detected of different lengths along the front-to-back direction. After the photovoltaic glass 9 to be detected is placed in the fixing groove 6, the operating block is rotated, and the operating block drives the threaded rod three 7 to rotate. When the threaded rod three 7 rotates, it drives the threaded sleeve 8 to move downward. The sliding hole guides the downward movement of the threaded sleeve 8. When the threaded sleeve 8 moves downward, it drives the contact block 37 to move downward. The contact block 37 presses the photovoltaic glass 9 to be detected in the fixing groove 6, and the fixing of the photovoltaic glass 9 to be detected is completed.

[0044] When the threaded rod 33 is rotated, the sliding block 5 on the right can be adjusted to move up and down. The sliding block 5 on the right drives the sliding block 5 on the left to move up and down through the connecting rod. The setting of the sliding groove 11 and the guide groove guides the up and down movement of the sliding blocks 5 on the left and right sides, thereby adjusting the upper and lower positions of the photovoltaic glass 9 to be inspected, making it convenient for the detection device to collect the image of the photovoltaic glass 9 to be inspected.

[0045] Example 3

[0046] On the basis of Example 2, Figure 1-Figure 3 As shown, a rack 13 is fixedly disposed at the lower end of the clamp block 20, the rack 13 is meshed with a gear 14, the gear 14 is fixedly connected to a motor 15 via a motor shaft, and the motor 15 is fixedly disposed in a sliding groove 38;

[0047] The detection device includes a mounting block 16, which is fixedly connected to the sliding bracket 12. The mounting block 16 is fixedly arranged at the lower end of the top plate 1. A sliding groove 4 19 is provided at the lower end of the mounting block 16. A threaded rod 4 17 is rotatably provided in the sliding groove 4 19. The threaded section of the threaded rod 4 17 is threadedly connected to the threaded block. The threaded block is slidably connected to the sliding groove 4 19. The lower end of the threaded block is fixedly connected to the industrial camera 18. The cylindrical section of the threaded rod 4 17 passes through the side end of the sliding groove 4 19 and the connecting block 28 and is fixedly connected to the motor 26. The motor 26 is fixedly connected to the top plate 1 through the fixing plate 25.

[0048] The beneficial effects of the above technical solution are:

[0049] The industrial camera 18 refers to CN202121886349 - a photovoltaic glass defect detection system. When the motor 26 is working, it drives the threaded rod 4 17 to rotate. When the threaded rod 4 17 rotates, it drives the threaded block to move left and right along the sliding groove 4 19. When the threaded block moves left and right, it drives the industrial camera 18 to move left and right. The industrial camera 18 collects the image of the photovoltaic glass 9 to be inspected along the left and right directions. When the motor 15 is working, it drives the gear 14 to rotate through the motor shaft, the gear 14 drives the rack 13 to move forward, the rack 13 drives the clamp 20 to move forward, and the clamp 20 drives the photovoltaic glass 9 to be inspected to move forward, so that the industrial camera 18 can collect the image of the photovoltaic glass 9 to be inspected along the front and back directions. In the initial state, the industrial camera 18 is set on the front side of the photovoltaic glass 9 to be inspected, and the motor 15 and the motor 2 26 are controlled to work intermittently to achieve the purpose of all-round collection of the image of the photovoltaic glass 9 to be inspected.

[0050] Example 4

[0051] On the basis of Example 3, Figure 1-Figure 3 As shown, the driving assembly includes an L-shaped plate 34, the horizontal end of the L-shaped plate 34 is rotatably connected to the bevel gear 1 35, the vertical end of the L-shaped plate 34 is rotatably connected to the bevel gear 2 36, the bevel gear 1 35 is meshed with the bevel gear 2 36, the cylindrical section of the threaded rod 2 33 is rotatably connected to the horizontal end of the L-shaped plate 34, the cylindrical section of the threaded rod 2 33 is fixedly connected to the bevel gear 1 35, the bevel gear 2 36 is fixedly connected to the sliding rod 32, the vertical end of the L-shaped plate 34 is slidably connected to the sliding rod 32, the sliding rod 32 is rotatably connected to the mounting block 16, and the sliding rod 32 passes through the connecting block 28 and is fixedly connected to the gear 3 31;

[0052] Gear 2 30 is meshed between gear 1 24 and gear 3 31 , gear 2 30 is fixedly connected to a sliding sleeve 27 , the sliding sleeve 27 is movably connected to the cylindrical section of threaded rod 4 17 , and the sliding sleeve 27 is matched with a positioning hole 29 on the connecting block 28 .

[0053] The beneficial effects of the above technical solution are:

[0054] When the sliding sleeve 27 is disengaged from the positioning hole 29, the gear two 30 is disengaged from the gear one 24 and the gear three 31. At this time, the threaded rod four 17 can rotate freely, and the gear one 24 and the gear three 31 can also rotate freely. When the gear three 31 rotates, it drives the sliding rod 32 to rotate, and when the sliding rod 32 rotates, it drives the bevel gear two 36 to rotate, and when the bevel gear two 36 rotates, it drives the bevel gear one 35 to rotate. When the bevel gear one 35 rotates, it can drive the threaded rod two 33 to rotate. When the fixed block 10 moves to the left, the L-shaped plate 34 can be driven to slide along the sliding rod 32 through the threaded rod two 33. After the sliding sleeve 27 is matched with the positioning hole 29, the gear two 30 cannot rotate. At this time, the gear two 30 and the gear one 24 cannot rotate, and finally the sliding bracket 12 and the sliding block 5 on the right side are kept fixed, so as to avoid the gear two 30 and the gear one 24 being offset by the external influence, so that the sliding bracket 12 and the sliding block 5 are offset, resulting in the position of the photovoltaic glass 9 to be detected being not fixed, affecting the purpose of the industrial camera 18 to collect the image of the photovoltaic glass 9 to be detected in all directions.

[0055] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A photovoltaic glass defect detection method, characterized in that: The following steps are involved: Step 1: Fix the photovoltaic glass (9) to be inspected by means of an adjustable clamp; Step 2: A light source (3) is placed on the lower side of the photovoltaic glass (9) to be inspected; Step 3: Control the detection device on the upper side of the photovoltaic glass (9) to be detected to move, and collect an image of the photovoltaic glass (9) to be detected; Step 4: Analyze and process the image acquired in step 3 to complete defect detection.

2. A photovoltaic glass defect detection system, used to implement the photovoltaic glass defect detection method according to claim 1, characterized in that: The invention comprises a bottom plate (2), a light source (3) is fixedly provided at the middle of the upper end of the bottom plate (2), a support frame (23) is fixedly provided at the left side of the upper end of the bottom plate (2), the support frame (23) is fixedly connected to the left side of the lower end of the top plate (1), an adjustable clamp is slidably provided between the bottom plate (2) and the top plate (1), the adjustable clamp is fixedly connected to a detection device, and the detection device is fixedly arranged at the lower end of the top plate (1).

3. A photovoltaic glass defect detection system according to claim 2, characterized in that: The adjustable clamp comprises a sliding bracket (12), the lower end of the sliding bracket (12) is slidably connected to the upper right side of the bottom plate (2), the upper end of the sliding bracket (12) is slidably connected to a sliding groove (22), the sliding groove (22) is arranged on the lower right side of the top plate (1), a threaded rod (21) is rotatably arranged in the sliding groove (22), the threaded portion of the threaded rod (21) is threadedly connected to the sliding bracket (12), and the cylindrical section of the threaded rod (21) passes through the side end of the sliding groove (22) and is fixedly connected to a gear (24).

4. A photovoltaic glass defect detection system according to claim 3, characterized in that: A fixed block (10) is fixedly arranged at the left end of the sliding bracket (12), a sliding groove (11) is fixedly arranged at the left end of the fixed block (10), a threaded rod (33) is rotatably arranged in the sliding groove (11), a threaded section of the threaded rod (33) is threadedly connected to the sliding block (5) on the right side, the sliding block (5) on the right side is slidably connected to the sliding groove (11), and a cylindrical section of the threaded rod (33) passes through the upper end of the sliding groove (11) and is connected to the driving assembly.

5. A photovoltaic glass defect detection system according to claim 4, characterized in that: A guide block (4) is fixedly provided at the right end of the support frame (23), a guide groove is provided on the right side of the guide block (4), and the guide groove is slidably connected to the left sliding block (5), and a connecting rod is connected between the rear ends of the left sliding block (5) and the right sliding block (5).

6. A photovoltaic glass defect detection system according to claim 5, characterized in that: The sliding blocks (5) on the left and right sides are provided with sliding grooves (38) at the ends close to each other. The sliding grooves (38) are slidably connected to the clamping block (20). The clamping block (20) is provided with a fixing groove (6) at the end close to the light source (3). A sliding hole is provided at the upper end of the fixing groove (6). A threaded sleeve (8) is slidably provided in the sliding hole. The threaded sleeve (8) is threadedly connected to the threaded section of the threaded rod (7). The cylindrical section of the threaded rod (7) passes through the upper end of the sliding hole and is fixedly connected to the external operating block. The lower end of the threaded sleeve (8) is rotatably connected to the contact block (37).

7. A photovoltaic glass defect detection system according to claim 6, characterized in that: A rack (13) is fixedly provided at the lower end of the clamping block (20), the rack (13) meshes with a gear (14), the gear (14) is fixedly connected to a motor 1 (15) via a motor shaft, and the motor 1 (15) is fixedly arranged in a sliding groove 3 (38).

8. The photovoltaic glass defect detection system according to claim 4, characterized in that: The detection device comprises a mounting block (16), the mounting block (16) is fixedly connected to a sliding bracket (12), the mounting block (16) is fixedly arranged at the lower end of a top plate (1), a sliding groove (19) is provided at the lower end of the mounting block (16), a threaded rod (17) is rotatably provided in the sliding groove (19), a threaded section of the threaded rod (17) is threadedly connected to a threaded block, the threaded block is slidably connected to the sliding groove (19), the lower end of the threaded block is fixedly connected to an industrial camera (18), a cylindrical section of the threaded rod (17) passes through the side end of the sliding groove (19) and a connecting block (28) and is fixedly connected to a motor (26), and the motor (26) is fixedly connected to the top plate (1) through a fixing plate (25).

9. A photovoltaic glass defect detection system according to claim 8, characterized in that: The driving assembly comprises an L-shaped plate (34), the horizontal end of the L-shaped plate (34) is rotatably connected to a bevel gear 1 (35), the vertical end of the L-shaped plate (34) is rotatably connected to a bevel gear 2 (36), the bevel gear 1 (35) is meshed with the bevel gear 2 (36), the cylindrical section of the threaded rod 2 (33) is rotatably connected to the horizontal end of the L-shaped plate (34), the cylindrical section of the threaded rod 2 (33) is fixedly connected to the bevel gear 1 (35), the bevel gear 2 (36) is fixedly connected to a sliding rod (32), the vertical end of the L-shaped plate (34) is slidably connected to the sliding rod (32), the sliding rod (32) is rotatably connected to a mounting block (16), and the sliding rod (32) passes through a connecting block (28) and is fixedly connected to a gear 3 (31).

10. A photovoltaic glass defect detection system according to claim 9, characterized in that: Gear 2 (30) is meshed between gear 1 (24) and gear 3 (31) respectively. Gear 2 (30) is fixedly connected to a sliding sleeve (27). The sliding sleeve (27) is movably connected to the cylindrical section of threaded rod 4 (17). The sliding sleeve (27) is matched with a positioning hole (29) on a connecting block (28).

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