Precise adjusting device for visual inspection of plate glass

Abstract

The invention relates to a plate glass visual inspection accurate adjustment device, which relates to the field of glass inspection equipment, and comprises a rack, and a camera mounting beam, an area light source mounting beam and a line light source mounting beam which are arranged on the rack, a plurality of cameras are fixed on the camera mounting beam, and a camera adjusting module for finely adjusting and locking the image acquisition angles of the cameras is arranged between the camera mounting beam and the rack; an area light source is mounted on the area light source mounting beam, and an area light source adjusting module used for adjusting and locking the height and the irradiation angle of the area light source is arranged between the area light source mounting beam and the rack; a linear light source is mounted on the linear light source mounting beam, and a linear light source adjusting module used for adjusting and locking the height and the irradiation angle of the linear light source is arranged between the linear light source mounting beam and the rack. The device and the method have the effects that multi-dimensional, high-precision and high-stability adjustment of plate glass visual inspection is realized, and the efficiency of plate glass visual inspection is improved.

Description

Technical Field

[0001] This application relates to the field of glass inspection equipment, and in particular to a precision adjustment device for visual inspection of flat glass. Background Technology

[0002] In the field of industrial automation visual inspection technology, with the continuous improvement of product quality inspection requirements, optical inspection technology for surface and internal defects of glass on flat glass production lines is becoming increasingly important. Visual inspection technology can quickly and accurately identify various defects in glass, providing a basis for subsequent processing steps and greatly improving production efficiency and product quality.

[0003] In the past, the conventional methods for solving the adjustment problem in the visual inspection of flat glass were relatively simple. Most adjustment devices were just simple, independent support structures. When adjusting the camera and light source, the camera and light source were usually moved roughly up and down or left and right, with limited adjustment dimensions and low precision. It was difficult to make precise angle adjustments around the axis of the camera and light source. When switching between single-field and dual-field inspection modes, a lot of time was spent on recalibration and refocusing, resulting in low inspection efficiency. It also could not meet the requirements of quickly and accurately adjusting the two light sources to the optimal state and maintaining stability under dual-field strobe requirements. Summary of the Invention

[0004] In order to achieve multi-dimensional, high-precision, and high-stability adjustment for visual inspection of flat glass and improve the efficiency of visual inspection of flat glass, this application provides a precise adjustment device for visual inspection of flat glass.

[0005] The precision adjustment device for visual inspection of flat glass provided in this application adopts the following technical solution: A precision adjustment device for visual inspection of flat glass includes a frame, a camera mounting beam, a surface light source mounting beam, and a line light source mounting beam mounted on the frame. Multiple cameras are fixed on the camera mounting beam, and a camera adjustment module for fine-tuning and locking the image acquisition angle of the cameras is provided between the camera mounting beam and the frame. A surface light source is mounted on the surface light source mounting beam, and a surface light source adjustment module for adjusting and locking the height and illumination angle of the surface light source is provided between the surface light source mounting beam and the frame. A line light source is mounted on the line light source mounting beam, and a line light source adjustment module for adjusting and locking the height and illumination angle of the line light source is provided between the line light source mounting beam and the frame.

[0006] By adopting the above technical solutions, the camera adjustment module can fine-tune the image acquisition angle of the camera on the camera mounting beam and then lock the adjusted angle position of the camera; the surface light source adjustment module can adjust the height and illumination angle of the surface light source and lock it after adjustment; the line light source adjustment module can adjust the height and illumination angle of the line light source and lock its position after adjustment, thereby realizing independent and precise multi-degree-of-freedom adjustment of the camera, surface light source, and line light source. This solves the problems of existing adjustment devices, such as limited adjustment dimensions, low precision, poor coordination, insufficient stability, and inability to meet the requirements of dual-field strobe, and significantly improves the system's adjustment efficiency, imaging quality, and detection stability.

[0007] Optionally, the camera adjustment module includes a rotating shaft, a transverse sliding frame, and a transverse adjustment guide rail. The rotating shaft is fixed on both sides of the camera mounting beam along its length. The rotating shaft is rotatably connected to the transverse sliding frame and the angle after the rotating shaft rotates can be locked. The transverse sliding frame is slidably connected to the transverse adjustment guide rail, and a locking device is provided between the transverse sliding frame and the transverse adjustment guide rail.

[0008] By adopting the above technical solution, the rotating shaft and the transverse sliding frame are rotatably connected, which can flexibly adjust the camera image acquisition angle and lock the angle after rotation to ensure angle stability; the transverse sliding frame slides on the transverse adjustment guide rail and cooperates with the locking device to adjust and lock the transverse position of the camera, thereby realizing precise fine adjustment and fixation of the camera image acquisition angle, improving adjustment accuracy and imaging stability.

[0009] Optionally, a worm gear is fixedly sleeved on the outer side of one of the rotating shafts, and a worm gear meshing with the worm gear is rotatably connected to the transverse sliding frame.

[0010] By adopting the above technical solution and utilizing the transmission structure of worm gear and worm, it is possible to fine-tune the image acquisition angle of the camera on the camera mounting beam. Since the worm gear transmission has a self-locking characteristic, when the worm is rotated to drive the worm wheel to rotate and thus adjust the camera angle, the adjusted angle position of the camera can be effectively locked, avoiding the camera angle from shifting due to external factors such as vibration, and ensuring the stability of the camera angle after adjustment.

[0011] Optionally, the surface light source adjustment module includes a horizontal moving guide rail, a horizontal support beam, and a vertical moving guide rail. The horizontal moving guide rail is fixed to the frame, the horizontal support beam is slidably connected to the horizontal moving guide rail, and the vertical moving guide rail is fixed above the horizontal support beam. A rotating beam is provided on one side of the vertical moving guide rail, which can slide along the height direction and lock the angle after rotation. A longitudinal adjustment and locking component for longitudinal adjustment and locking the position of the surface light source mounting beam is provided between the rotating beam and the surface light source mounting beam.

[0012] By adopting the above technical solution, the transverse support beam can slide on the transverse moving guide rail to achieve transverse position adjustment of the surface light source; the vertical moving guide rail is fixed above the transverse support beam, and the rotating beam can slide up and down along the height direction of the vertical moving guide rail, and can also rotate along its own axis and lock the angle after rotation to adjust the height and illumination angle of the surface light source; the longitudinal adjustment and locking component between the rotating beam and the surface light source mounting beam can adjust and lock the longitudinal position of the surface light source mounting beam; thus, the height, illumination angle, and longitudinal position of the surface light source can be precisely adjusted and locked, achieving multi-dimensional adjustment, and the position and angle of the surface light source can be flexibly adjusted according to actual detection needs, improving imaging quality and ensuring the accuracy and stability of detection.

[0013] Optionally, a rotating shaft is fixed at both ends of the rotating beam along its length. A first vertical sliding plate is slidably connected to one side of the vertical moving guide rail. A plurality of first set bolts are provided between the first vertical sliding plate and the vertical moving guide rail. A vertical plate is fixed to one side of the first vertical sliding plate. Two symmetrically arranged clamping plates are fixed to the end of the vertical plate away from the first vertical sliding plate. The clamping plates are provided with slots adapted to the rotating shaft. The rotating shaft is rotatably connected to the slots. A locking bolt for holding the rotating shaft is provided between the two clamping plates.

[0014] By adopting the above technical solution, the first vertical sliding plate can slide along the vertical moving guide rail. By tightening or loosening the first set bolt, the position of the first vertical sliding plate can be locked and adjusted, thereby driving the rotating beam to slide up and down along the height direction of the vertical moving guide rail. At the same time, by tightening the locking bolt between the two clamping plates, the two clamping plates can hold the rotating shaft tightly, thereby fixing the angle of the rotating beam after rotation. This allows for convenient adjustment and locking of the height and illumination angle of the surface light source, enabling the surface light source to be adjusted to a suitable position and angle according to actual detection needs.

[0015] Optionally, the longitudinal adjustment and locking assembly includes a longitudinal adjustment plate and an adjustment rod. The longitudinal adjustment plate is fixed to the surface light source mounting beam. One end of the adjustment rod is fixed to the rotating beam, and the other end can slide along the length direction of the longitudinal adjustment plate. The longitudinal adjustment plate is provided with a plurality of locking holes arranged along the length direction. The adjustment rod is connected to the longitudinal adjustment plate through the locking holes by locking bolts.

[0016] By adopting the above technical solution, the position of the surface light source mounting beam is first adjusted by sliding the adjusting rod along the length of the longitudinal adjusting plate. Then, the locking bolt is connected to the longitudinal adjusting plate through the appropriate hole in the multiple locking holes, which can lock the longitudinal position of the surface light source mounting beam relative to the rotating beam. The multiple locking holes facilitate flexible adjustment of the position of the surface light source mounting beam to adapt to different detection requirements, thereby improving the adjustment flexibility and accuracy of the device.

[0017] Optionally, the linear light source adjustment module includes a second vertical sliding plate and a longitudinal adjustment frame. The second vertical sliding plate is provided with a plurality of second set bolts between it and the vertical moving guide rail. The second vertical sliding plate is slidably connected to the vertical moving guide rail. The longitudinal adjustment frame and the second vertical sliding plate can rotate relative to each other and lock the angle after rotation. The longitudinal adjustment frame is slidably connected to the linear light source mounting beam and locked by fastening bolts.

[0018] By adopting the above technical solution, the second vertical sliding plate slides on the vertical moving guide rail and its position on the vertical moving guide rail can be locked by multiple second set bolts; the longitudinal adjustment frame and the second vertical sliding plate can rotate relative to each other, and the angle can be locked after rotation; the longitudinal adjustment frame and the line light source mounting beam are slidably connected, and the two can be locked by fastening bolts; thus, the height and illumination angle of the line light source can be adjusted and locked, and the position and angle of the line light source can be flexibly adjusted according to actual detection needs.

[0019] Optionally, the second vertical sliding plate is provided with an oblong hole, and a fixing bolt is provided between the second vertical sliding plate and the longitudinal adjustment frame. The fixing bolt passes through the oblong hole and is threadedly connected to the second vertical sliding plate. The width of the oblong hole is greater than the diameter of the fixing bolt. The longitudinal adjustment frame and the second vertical sliding plate can be rotated and finely adjusted through the oblong hole.

[0020] By adopting the above technical solution, since the linear light source does not require large-scale angle adjustment, the width of the oblong hole is greater than the diameter of the fixing bolt, allowing for fine-tuning of the rotation between the longitudinal adjustment frame and the second vertical sliding plate. During the adjustment process, the fixing bolt passes through the oblong hole and is threadedly connected to the second vertical sliding plate, ensuring relative rotation between the longitudinal adjustment frame and the second vertical sliding plate. After adjusting to the appropriate angle, the fixing bolt is tightened to lock the position, ensuring the stability of the linear light source after adjustment. In addition, this fine-tuning method is relatively simple to operate, improving adjustment efficiency and reducing adjustment time and labor costs.

[0021] Optionally, the camera mounting beam is made of high-strength material, and the mounting surface of the camera mounting beam is provided with a uniform positioning reference. The camera is detachably fixed to the camera mounting beam via a camera mount.

[0022] By adopting the above technical solution, the camera mounting beam is made of high-strength material, ensuring structural strength and stability. It is not easily deformed during long-term use and equipment operation. The mounting surface has a unified positioning benchmark, allowing all cameras to be installed using this benchmark as a reference, ensuring the same installation angle and that the scan lines are precisely aligned. This eliminates image stitching problems caused by installation errors, improves the accuracy and continuity of image acquisition, and provides more reliable data for subsequent visual inspection and analysis. Simultaneously, the camera can be detachably fixed to the camera mounting beam via camera mounts, facilitating camera replacement, maintenance, and adjustment. If a camera malfunctions or requires parameter adjustment, a new camera can be quickly disassembled and installed.

[0023] In summary, this application includes at least one of the following beneficial technical effects: The camera adjustment module, the area light source adjustment module, and the line light source adjustment module can be used to adjust and lock the image acquisition angle of the camera, the height of the area light source, and the illumination angle of the line light source, respectively. This achieves multi-dimensional and high-precision adjustment and solves the problems of limited adjustment dimensions and low precision of existing adjustment devices. Each adjustment module can quickly, independently, and accurately adjust and lock the camera array, area light source, and line light source, improving the system adjustment efficiency, avoiding a large amount of recalibration and focusing work when switching detection modes, and solving the problems of poor coordination and low efficiency of existing devices. The adjustment module can lock the adjusted position, ensuring the stability of the adjustment mechanism and preventing the equipment from shifting due to vibration during operation, thus solving the problem of insufficient stability of existing devices. It can quickly and accurately adjust the surface light source and the line light source to the optimal state and maintain stability, meeting the dual-field flicker requirements and solving the problem that existing mechanical structures cannot achieve. The camera mounting beam has a unified positioning reference, which ensures that all cameras are installed at the same angle and that the scan lines are precisely located on the same straight line, eliminating image stitching problems caused by installation errors. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of the precision adjustment device for visual inspection of flat glass in this application; Figure 2 This is a schematic diagram showing a partial structure of the camera adjustment module; Figure 3 This is a partial structural diagram showing another perspective of the camera adjustment module; Figure 4 This is a side view showing the precision adjustment device for visual inspection of flat glass; Figure 5 This is a schematic diagram showing the structure of the surface light source adjustment module; Figure 6It means Figure 5 A magnified schematic diagram of part A in the middle section; Figure 7 This is a schematic diagram showing the structure of the line light source adjustment module; Figure 8 It means Figure 7 A magnified schematic diagram of part B in the middle section.

[0025] Explanation of reference numerals in the attached drawings: 1. Frame; 2. Camera mounting beam; 3. Area light source mounting beam; 4. Line light source mounting beam; 5. Camera adjustment module; 51. Rotating shaft; 52. Lateral sliding frame; 53. Lateral adjustment guide rail; 54. Locking device; 55. Worm gear; 56. Worm; 6. Area light source adjustment module; 61. Lateral moving guide rail; 62. Lateral support beam; 63. Vertical moving guide rail; 64. Rotating beam; 65. Longitudinal adjustment locking assembly; 651. Longitudinal adjusting plate; 6511, locking hole; 652, adjusting support rod; 653, locking bolt; 66, rotating shaft; 67, first vertical sliding plate; 68, first set bolt; 69, upright plate; 691, clamping plate; 6911, slot; 692, locking bolt; 7, linear light source adjusting module; 71, second vertical sliding plate; 72, longitudinal adjusting frame; 721, waist-shaped hole; 73, second set bolt; 74, fastening bolt; 75, fixing bolt. Detailed Implementation

[0026] The following is in conjunction with the appendix Figures 1-8 This application will be described in further detail.

[0027] This application discloses a precise adjustment device for visual inspection of flat glass. (Refer to...) Figure 1 and Figure 2 The precision adjustment device for visual inspection of flat glass includes a frame 1, a camera mounting beam 2, a surface light source mounting beam 3, a line light source mounting beam 4, a camera adjustment module 5, a surface light source adjustment module 6, and a line light source adjustment module 7. The camera adjustment module 5 is located between the camera mounting beam 2 and the frame 1 and is used for fine-tuning and locking the camera image acquisition angle. The surface light source adjustment module 6 is located between the surface light source mounting beam 3 and the frame 1 and is used for adjusting and locking the height and illumination angle of the surface light source. The line light source adjustment module 7 is located between the line light source mounting beam 4 and the frame 1 and is used for adjusting and locking the height and illumination angle of the line light source.

[0028] Specifically, refer to Figure 1 and Figure 2Multiple cameras are fixed on camera mounting beam 2. Camera mounting beam 2 is made of high-strength materials, such as high-precision extruded aluminum profiles, providing good strength and stability to ensure reliable camera installation. The mounting surface of camera mounting beam 2 has a uniform positioning reference and is precision-machined to ensure high accuracy. Cameras are detachably fixed to camera mounting beam 2 via camera mounts, which are connected to camera mounting beam 2 by bolts. All cameras are installed at the same angle, and the scan lines are precisely aligned on the same straight line, eliminating image stitching problems caused by installation errors and improving imaging quality and detection accuracy.

[0029] Reference Figure 2 and Figure 3 The camera adjustment module 5 includes a rotating shaft 51, a transverse sliding frame 52, and a transverse adjustment guide rail 53. The rotating shaft 51 is fixed to both sides along the length of the camera mounting beam 2. The rotating shaft 51 is rotatably connected to the transverse sliding frame 52 and its angle after rotation can be locked. The transverse sliding frame 52 is slidably connected to the transverse adjustment guide rail 53, which is fixed to the frame 1. A locking device 54 is provided between the transverse sliding frame 52 and the transverse adjustment guide rail 53. The locking device 54 uses a bolt and nut combination, and the transverse sliding frame 52 can be fixed at any position on the transverse adjustment guide rail 53 by tightening the bolts. One of the rotating shafts 51 is fixedly fitted with a worm gear 55 on its outer side. A worm 56 that meshes with the worm gear 55 is rotatably connected to the transverse sliding frame 52. By rotating the worm 56, the image acquisition angle of the camera on the camera mounting beam 2 can be finely adjusted by utilizing the transmission characteristics of the worm gear 55 and the worm 56. On the other hand, the self-locking function of the worm gear 55 and the worm 56 can be used to lock the adjusted angle of the camera to ensure the stability of the camera angle.

[0030] Specifically, refer to Figures 4-6 A surface light source is mounted on the surface light source mounting beam 3. The surface light source uses LED surface light sources, which have high brightness and good uniformity. The surface light source adjustment module 6 includes a horizontal moving guide rail 61, a horizontal support beam 62, and a vertical moving guide rail 63. The horizontal moving guide rail 61 is fixed to the frame 1. The horizontal support beam 62 is slidably connected to the horizontal moving guide rail 61. The horizontal support beam 62 can move horizontally along the horizontal moving guide rail 61, thereby adjusting the horizontal position of the surface light source. The vertical moving guide rail 63 is fixed above the horizontal support beam 62. A rotating beam 64 is provided on one side of the vertical moving guide rail 63, which can slide along the height direction and lock the angle after rotation. A longitudinal adjustment and locking component 65 is provided between the rotating beam 64 and the surface light source mounting beam 3 for longitudinal adjustment and locking the position of the surface light source mounting beam 3.

[0031] Reference Figure 5 and Figure 6A rotating beam 64 has rotating shafts 66 fixed at both ends along its length. A first vertical sliding plate 67 is slidably connected to one side of a vertical moving guide rail 63. Multiple first set bolts 68 are provided between the first vertical sliding plate 67 and the vertical moving guide rail 63. By tightening or loosening the first set bolts 68, the position of the first vertical sliding plate 67 can be locked and adjusted. A vertical plate 69 is fixed to one side of the first vertical sliding plate 67. Two symmetrically arranged clamping plates 691 are fixed to the end of the vertical plate 69 opposite to the first vertical sliding plate 67. The clamping plates 691 have slots 6911 adapted to the rotating shafts 66. The rotating shafts 66 are rotatably connected to the slots 6911. A locking bolt 692 is provided at the end of the clamping plates 691 opposite to the vertical plate 69. By tightening the locking bolt 692, the two clamping plates 691 can clamp the rotating shafts 66, thereby fixing the rotating shafts 66 and locking the angle of the rotating beam 64 after rotation.

[0032] Reference Figure 5 and Figure 6 The longitudinal adjustment and locking assembly 65 includes a longitudinal adjustment plate 651 and an adjustment rod 652. The longitudinal adjustment plate 651 is fixed to the surface light source mounting beam 3. One end of the adjustment rod 652 is fixed to the rotating beam 64, and the other end can slide along the length of the longitudinal adjustment plate 651. The longitudinal adjustment plate 651 has multiple locking holes 6511 arranged along its length. The adjustment rod 652 is connected to the longitudinal adjustment plate 651 through the locking holes 6511 by locking bolts 653. By selecting different locking holes 6511, the longitudinal position of the surface light source mounting beam 3 can be adjusted and locked.

[0033] Specifically, refer to Figure 7 and Figure 8 A linear light source is mounted on the linear light source mounting beam 4. The linear light source adjustment module 7 includes a second vertical sliding plate 71 and a longitudinal adjustment frame 72. Multiple second settling bolts 73 are provided between the second vertical sliding plate 71 and the vertical moving guide rail 63. The second vertical sliding plate 71 is slidably connected to the vertical moving guide rail 63. By tightening or loosening the second settling bolts 73, the position of the second vertical sliding plate 71 can be locked and adjusted. The longitudinal adjustment frame 72 can rotate relative to the second vertical sliding plate 71 and lock the angle after rotation. The longitudinal adjustment frame 72 is slidably connected to the linear light source mounting beam 4 and locked by fastening bolts 74.

[0034] The second vertical sliding plate 71 has an oblong hole 721. A fixing bolt 75 is provided between the second vertical sliding plate 71 and the longitudinal adjusting frame 72. The fixing bolt 75 passes through the oblong hole 721 and is threadedly connected to the second vertical sliding plate 71. The width of the oblong hole 721 is greater than the diameter of the fixing bolt 75. Since the linear light source does not require large-amplitude angle adjustment, the longitudinal adjusting frame 72 and the second vertical sliding plate 71 can be finely rotated through the oblong hole 721. This fine-tuning method can meet the usage requirements of the linear light source.

[0035] The implementation principle of the precision adjustment device for visual inspection of flat glass in this application embodiment is as follows: This device achieves precise fine-tuning and locking of the camera angle through the cooperation of various adjustment modules. The camera adjustment module 5 utilizes a rotating shaft 51, a worm gear 55, and a worm 56 to achieve precise fine-tuning and locking of the camera angle. The high-precision design of the camera mounting beam 2 ensures the accuracy of camera installation and image stitching quality. The surface light source adjustment module 6 can flexibly adjust the height, horizontal position, and illumination angle of the surface light source through horizontal and vertical movement, as well as the rotation and longitudinal adjustment of the rotating beam 64. The line light source adjustment module 7 achieves precise adjustment of the height and angle of the line light source through the cooperation of the second vertical sliding plate 71 and the longitudinal adjustment frame 72. The design of the waist-shaped hole 721 meets the requirements for small-angle fine-tuning of the line light source. The entire adjustment device realizes independent and precise multi-degree-of-freedom adjustment of the camera, surface light source, and line light source, solving the problems of limited adjustment dimensions, low precision, poor coordination, insufficient stability, and inability to meet the requirements of dual-field strobe in existing adjustment devices. This significantly improves the system's adjustment efficiency, imaging quality, and detection stability.

[0036] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A precision adjustment device for visual inspection of flat glass, characterized in that, The system includes a frame (1), a camera mounting beam (2), a surface light source mounting beam (3), and a line light source mounting beam (4) mounted on the frame (1). Multiple cameras are fixed on the camera mounting beam (2), and a camera adjustment module (5) for fine-tuning and locking the image acquisition angle of the camera is provided between the camera mounting beam (2) and the frame (1). A surface light source is mounted on the surface light source mounting beam (3), and a surface light source adjustment module (6) for adjusting and locking the height and illumination angle of the surface light source is provided between the surface light source mounting beam (3) and the frame (1). A line light source is mounted on the line light source mounting beam (4), and a line light source adjustment module (7) for adjusting and locking the height and illumination angle of the line light source is provided between the line light source mounting beam (4) and the frame (1).

2. The precision adjustment device for visual inspection of flat glass according to claim 1, characterized in that, The camera adjustment module (5) includes a rotating shaft (51), a transverse sliding frame (52), and a transverse adjustment guide rail (53). The rotating shaft (51) is fixed on both sides of the camera mounting beam (2) along its length. The rotating shaft (51) is rotatably connected to the transverse sliding frame (52) and can lock the angle after the rotating shaft (51) is rotated. The transverse sliding frame (52) is slidably connected to the transverse adjustment guide rail (53). A locking device (54) is provided between the transverse sliding frame (52) and the transverse adjustment guide rail (53).

3. The precision adjustment device for visual inspection of flat glass according to claim 2, characterized in that, One of the rotating shafts (51) is fixedly fitted with a worm gear (55) on its outer side, and a worm (56) that meshes with the worm gear (55) is rotatably connected to the transverse sliding frame (52).

4. The precision adjustment device for visual inspection of flat glass according to claim 1, characterized in that, The surface light source adjustment module (6) includes a horizontal moving guide rail (61), a horizontal support beam (62), and a vertical moving guide rail (63). The horizontal moving guide rail (61) is fixed to the frame (1). The horizontal support beam (62) is slidably connected to the horizontal moving guide rail (61). The vertical moving guide rail (63) is fixed above the horizontal support beam (62). A rotating beam (64) is provided on one side of the vertical moving guide rail (63) that can slide along the height direction and lock the angle after rotation. A longitudinal adjustment and locking component (65) for longitudinal adjustment and locking of the position of the surface light source mounting beam (3) is provided between the rotating beam (64) and the surface light source mounting beam (3).

5. The precise adjustment device for visual inspection of flat glass according to claim 4, characterized in that, The rotating beam (64) has a rotating shaft (66) fixed at both ends along its length. A first vertical sliding plate (67) is slidably connected to one side of the vertical moving guide rail (63). A plurality of first set bolts (68) are provided between the first vertical sliding plate (67) and the vertical moving guide rail (63). A vertical plate (69) is fixed to one side of the first vertical sliding plate (67). Two symmetrically arranged clamping plates (691) are fixed to the end of the vertical plate (69) away from the first vertical sliding plate (67). The clamping plates (691) are provided with slots (6911) that are adapted to the rotating shaft (66). The rotating shaft (66) is rotatably connected to the slots (6911). Locking bolts (692) for holding the rotating shaft (66) are provided between the two clamping plates (691).

6. The precise adjustment device for visual inspection of flat glass according to claim 4, characterized in that, The longitudinal adjustment and locking assembly (65) includes a longitudinal adjustment plate (651) and an adjustment rod (652). The longitudinal adjustment plate (651) is fixed to the surface light source mounting beam (3). One end of the adjustment rod (652) is fixed to the rotating beam (64), and the other end can slide along the length direction of the longitudinal adjustment plate (651). The longitudinal adjustment plate (651) is provided with a plurality of locking holes (6511) arranged along the length direction. The adjustment rod (652) is connected to the longitudinal adjustment plate (651) through the locking holes (6511) by a locking bolt (653).

7. The precise adjustment device for visual inspection of flat glass according to claim 1, characterized in that, The linear light source adjustment module (7) includes a second vertical sliding plate (71) and a longitudinal adjustment frame (72). The second vertical sliding plate (71) and the vertical moving guide rail (63) are provided with a plurality of second set bolts (73). The second vertical sliding plate (71) is slidably connected to the vertical moving guide rail (63). The longitudinal adjustment frame (72) and the second vertical sliding plate (71) can rotate relative to each other and lock the angle after rotation. The longitudinal adjustment frame (72) is slidably connected to the linear light source mounting beam (4) and locked by fastening bolts (74).

8. The precise adjustment device for visual inspection of flat glass according to claim 7, characterized in that, The second vertical sliding plate (71) is provided with a waist-shaped hole (721). A fixing bolt (75) is provided between the second vertical sliding plate (71) and the longitudinal adjusting frame (72). The fixing bolt (75) passes through the waist-shaped hole (721) and is threadedly connected to the second vertical sliding plate (71). The width of the waist-shaped hole (721) is greater than the diameter of the fixing bolt (75). The longitudinal adjusting frame (72) and the second vertical sliding plate (71) can achieve rotational fine adjustment through the waist-shaped hole (721).

9. The precise adjustment device for visual inspection of flat glass according to any one of claims 1-8, characterized in that, The camera mounting beam (2) is made of high-strength material. The mounting surface of the camera mounting beam (2) is provided with a unified positioning reference. The camera is detachably fixed to the camera mounting beam (2) through the camera seat.

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