Reversing rearview module circuit flexible board scratch detection device

Abstract

The invention discloses a scratch detection device for a flexible board of a backing-up rearview module circuit, and relates to the technical field of backing-up rearview modules, the scratch detection device comprises a workbench and a smoothing assembly, the center of the top of the workbench is provided with a pore plate, the outer end of the top of the workbench is fixedly provided with a rack, and the middle of the rack is provided with a visual detection head; and the smoothing assembly is arranged above the pore plate and comprises a driving motor, a positive and negative tooth screw rod, a driving seat, a limiting rod, a driving block, a driving column, a box body, a first spring seat, a sliding block, a dust collection cover and cleaning cotton. The driving motor is started firstly, the driving motor drives the two driving seats to slide and be centered along the outer sides of the limiting rods through the positive and negative tooth screw, at the moment, the driving blocks push the box bodies through the driving columns, and after the two box bodies are attached to each other, along with continuous movement of the driving seats, the driving columns drive the box bodies to move upwards under guiding of the inner inclined faces of the driving blocks; and a space can be reserved at the lower part of the dust hood, so that the flexible circuit board can be placed on the pore plate.

Description

Technical Field

[0001] The present invention relates to the technical field of reverse vision modules, and particularly to a scratch detection device for a flexible circuit board of a reverse vision module circuit. Background Art

[0002] An electronic rearview mirror is an indirect vision device that obtains a specified field of view through a system composed of a camera and a monitor. In the production process of a reverse vision module, a flexible circuit board is required. When producing the flexible circuit board, a vision detection device is often used to photograph and detect the surface of the flexible circuit board.

[0003] Currently, when visually detecting the surface scratches of a flexible circuit board, it is usually necessary to place the flexible circuit board under an industrial camera and then perform a visual detection operation on the flexible circuit board. However, in actual use, due to the relatively soft nature of the flexible circuit board itself, it may curl and warp during the placement process, resulting in a problem that affects the detection accuracy of the flexible circuit board.

[0004] Therefore, in view of this, research and improvement are carried out on the existing structure and deficiencies, and a scratch detection device for a flexible circuit board of a reverse vision module circuit is proposed. Summary of the Invention

[0005] The purpose of the present invention is to provide a scratch detection device for a flexible circuit board of a reverse vision module circuit to solve the problems raised in the above background art.

[0006] To achieve the above purpose, the present invention provides the following technical solution: A scratch detection device for a flexible circuit board of a reverse vision module circuit includes a workbench and a flattening component. A hole plate is arranged in the center of the top of the workbench, and a frame is fixed to the outer end of the top of the workbench. A vision detection head is arranged in the middle of the frame. The flattening component is arranged above the hole plate. The flattening component includes a driving motor, a left-right threaded screw, a driving seat, a limiting rod, a driving block, a driving column, a box body, a first spring seat, a slider, a dust suction cover, and a cleaning cotton. A driving motor is arranged on one side of the frame, and one end of the driving motor is connected to the left-right threaded screw. The middle of the left-right threaded screw is sleeved with driving seats on both outer sides. The lower end of the driving seat is slidably connected to the limiting rod. The bottom of the driving seat is fixed with a driving block, and the driving column is slidably connected inside the driving block. One end of the driving column is fixed with a box body. One end of the top of the box body is provided with a first spring seat, and the top of the first spring seat is fixed with a slider. The bottom of the box body is fixed with a dust suction cover, and cleaning cotton is arranged at both ends of the bottom of the dust suction cover.

[0007] Furthermore, the slider is slidably connected to the limiting rod, and the limiting rod is fixed to the frame.

[0008] Further, an adsorption assembly is provided below the orifice plate. The adsorption assembly includes a first vacuum generator, a negative pressure chamber, a synchronization frame, and a first magnet. The first vacuum generator is installed at one end of the rear side of the workbench, and a negative pressure chamber is connected to one end of the middle part of the first vacuum generator. A synchronization frame is fixed to one side of the box body, and a first magnet is fixed to the lower part of the synchronization frame.

[0009] Further, the adsorption assembly further includes a sliding seat, a second magnet, a rotating plate, and a tooth part. The sliding seat is slidably connected to the inside of the workbench, and a second magnet is fixed to one end of the sliding seat. The rotating plate is rotatably connected to the inside of the upper end of the sliding seat, and a tooth part is arranged on the outer side of one end of the rotating plate.

[0010] Further, the adsorption assembly further includes a synchronization rod, an adjustment motor, and a sealing plate. The synchronization rod is slidably connected to the inside of the rotating plate, and an adjustment motor is arranged at one end of the synchronization rod, and the adjustment motor is fixedly connected to the workbench. The sealing plate is fixed to the top of the sliding seat, and the sealing plate is slidably connected to the orifice plate.

[0011] Further, the adsorption assembly further includes a sealing sleeve, a stop block, a return spring, and a fixing rod. Sealing sleeves are arranged on both sides of the sealing plate, a stop block is fixed to the bottom of the sealing sleeve, a return spring is arranged inside the sealing sleeve, and a fixing rod is connected to one end of the return spring.

[0012] Further, the fixing rod is slidably connected to the sealing sleeve, and the fixing rod is fixedly connected to the workbench.

[0013] Further, a dust collection assembly is connected to one end of the first vacuum generator. The dust collection assembly includes a second vacuum generator, a shunt hose, and a partition plate. The second vacuum generator is connected to one end of the first vacuum generator, a shunt hose is arranged at the top of the middle part of the second vacuum generator, the shunt hose is communicated with the inside of the box body, and a partition plate is fixed to the inside of the box body.

[0014] Further, the dust collection assembly further includes a second spring seat, a filter plate, and a dust collection baffle. The second spring seat is arranged at the top of one end of the partition plate, the filter plate is fixed to the top of the second spring seat, and the dust collection baffle is arranged inside the box body.

[0015] Further, the filter plate is inclined, and the filter plate is slidably connected to the partition plate and the box body.

[0016] The present invention provides a scratch detection device for a flexible circuit board of a rearview module for a vehicle, having the following beneficial effects:

[0017] 1. The present invention first starts the driving motor, so that it drives the two driving seats to slide and center along the outer side of the limit rod through the positive and negative threaded screws, and when the two boxes are fitted with each other, as the driving seat continues to move, the driving column will drive the box to move upward under the guidance of the inclined surface inside the driving block, so that the lower part of the dust cover can be vacated to place the flexible circuit board on the orifice plate, and after placement, the positive and negative threaded screws are driven by the driving motor to rotate in the opposite direction, so that the two driving seats are separated from each other. At this time, the first spring seat will push the box to move downward under the limit of the slider, so that the cleaning cotton can be pressed on the middle part of the flexible circuit board. After that, as the driving seat continues to move, the dust covers on both sides can be pushed from the middle part of the flexible circuit board to both sides respectively, so that the flexible circuit board can be smoothed and the air at the bottom can be discharged to prevent the flexible circuit board from being unevenly placed or warped, thereby affecting the surface detection accuracy of the flexible circuit board.

[0018] 2. The present invention can use a sealing plate and a sealing sleeve to block the bottom of the hole position of the orifice plate, and when the box moves horizontally, the first magnet at the lower end of the synchronous frame will absorb the second magnet at the end of the slide seat, so that the slide seat can be driven to move together through the internal side plate of the workbench, and the position of the sealing plate can be changed. When the cleaning cotton smoothes the flexible circuit board, the sealing sleeve will release the blocking of the hole position of the orifice plate, and the position of the flexible circuit board after smoothing can be adsorbed, which is beneficial to maintaining the flatness of the flexible circuit board, thereby improving the subsequent detection accuracy, and when the slide seat moves, it will also push the stopper through the rotating plate, so that the sealing sleeves on both sides can move synchronously, and the angle of the rotating plate can be changed by adjusting the motor to drive the synchronous rod to rotate according to needs, and when the angle of the rotating plate changes, it can contact with multiple stoppers at the same time, so that the width of the orifice plate during adsorption can be adjusted, and when the flexible circuit board is adsorbed, the continuous suction of too many invalid adsorption holes affects the overall adsorption effect, and it can adapt to flexible circuit boards of various sizes, further improving the use range of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall three-dimensional structure of a device for detecting scratches on a flexible board of a rear-view module circuit of the present invention;

[0020] Figure 2 It is a schematic diagram of the three-dimensional structure of a smoothing component part of a device for detecting scratches on a flexible board of a rear-view module circuit of the present invention;

[0021] Figure 3 It is a schematic diagram of the overall rear-view stereoscopic structure of a device for detecting scratches on a flexible board of a circuit of a rear-view module of the present invention;

[0022] Figure 4 A schematic diagram of the internal structure of a workbench of a device for detecting scratches on a flexible board of a rear-view module circuit of the present invention;

[0023] Figure 5 Schematic diagram of the three-dimensional structure of the adsorption component part of a scratch detection device for a flexible board of a reverse camera module circuit according to the present invention;

[0024] Figure 6 Schematic diagram of the internal structure of the box body of a scratch detection device for a flexible board of a reverse camera module circuit according to the present invention.

[0025] In the figure: 1, workbench; 2, orifice plate; 3, frame; 4, vision detection head; 5, smoothing component; 501, drive motor; 502, right and left hand screw; 503, drive seat; 504, limit rod; 505, drive block; 506, drive column; 507, box body; 508, first spring seat; 509, slider; 510, dust suction hood; 511, cleaning cotton; 6, adsorption component; 601, first vacuum generator; 602, negative pressure chamber; 603, synchronous frame; 604, first magnet; 605, sliding seat; 606, second magnet; 607, rotating plate; 608, tooth part; 609, synchronous rod; 610, adjustment motor; 611, sealing plate; 612, sealing sleeve; 613, stop block; 614, return spring; 615, fixed rod; 7, dust collection component; 701, second vacuum generator; 702, shunt hose; 703, partition board; 704, second spring seat; 705, filter plate; 706, dust collection baffle. Detailed implementation manners

[0026] Please refer to Figures 1 to 3, the present invention provides a technical solution: a scratch detection device for a flexible board of a rearview module circuit, including a workbench 1 and a flattening component 5. A hole plate 2 is arranged at the center of the top of the workbench 1, and a frame 3 is fixed to the outer end of the top of the workbench 1. A visual detection head 4 is arranged in the middle of the frame 3. The flattening component 5 is arranged above the hole plate 2. The flattening component 5 includes a driving motor 501, a left - right hand thread screw 502, a driving seat 503, a limiting rod 504, a driving block 505, a driving column 506, a box body 507, a first spring seat 508, a slider 509, a dust suction cover 510 and a cleaning cotton 511. A driving motor 501 is arranged on one side of the frame 3, and one end of the driving motor 501 is connected with a left - right hand thread screw 502. The middle two outer sides of the left - right hand thread screw 502 are sleeved with driving seats 503. The lower end of the driving seat 503 is internally slidably connected with a limiting rod 504. The bottom of the driving seat 503 is fixed with a driving block 505. The inside of the driving block 505 is slidably connected with a driving column 506. One end of the driving column 506 is fixed with a box body 507. One end of the top of the box body 507 is provided with a first spring seat 508. The top of the first spring seat 508 is fixed with a slider 509. The slider 509 is slidably connected with the limiting rod 504. The limiting rod 504 is fixed to the frame 3. The bottom of the box body 507 is fixed with a dust suction cover 510. The two ends of the bottom of the dust suction cover 510 are provided with cleaning cotton 511;

[0027] The specific operation is as follows. The driving motor 501 will drive two driving seats 503 to slide and center along the outside of the limiting rod 504 through the left - right hand thread screw 502. At this time, the driving block 505 will push the box body 507 through the driving column 506. When the two box bodies 507 are in contact with each other, as the driving seat 503 continues to move, the driving column 506 will drive the box body 507 to move upward under the guidance of the inclined surface inside the driving block 505, so that a space can be vacated at the lower part of the dust suction cover 510. Then, place the flexible circuit board at the center of the top of the hole plate 2. After that, drive the left - right hand thread screw 502 to rotate in the reverse direction through the driving motor 501, so that the two driving seats 503 are separated from each other. At this time, the first spring seat 508 will push the box body 507 to move downward under the limit of the slider 509, so that the cleaning cotton 511 can be pressed on the middle part of the flexible circuit board. Then, as the driving seat 503 continues to move, the dust suction covers 510 on both sides can be respectively pushed from the middle part of the flexible circuit board to both sides, so as to flatten the flexible circuit board, discharge the air at the bottom to avoid the situation that the flexible circuit board is not placed flat or warped, which affects the detection accuracy of the flexible circuit board. And during the flattening process, the cleaning cotton 511 can also be used to wipe the surface of the flexible circuit board to avoid the situation that dust and impurities adhere to the surface of the flexible circuit board, which affects the subsequent shooting and detection effect of the visual detection head 4.

[0028] Please refer to Figures 3 to 6, an adsorption assembly 6 is arranged below the orifice plate 2. The adsorption assembly 6 includes a first vacuum generator 601, a negative pressure chamber 602, a synchronous frame 603, and a first magnet 604. A first vacuum generator 601 is installed at one end of the rear side of the workbench 1, and one end of the middle part of the first vacuum generator 601 is connected to the negative pressure chamber 602. A synchronous frame 603 is fixed on one side of the box body 507, and a first magnet 604 is fixed at the lower part of the synchronous frame 603. The adsorption assembly 6 further includes a sliding seat 605, a second magnet 606, a rotating plate 607, and a tooth part 608. The sliding seat 605 is slidably connected inside the workbench 1, and a second magnet 606 is fixed at one end of the sliding seat 605. The rotating plate 607 is rotatably connected inside the upper end of the sliding seat 605, and a tooth part 608 is arranged on the outer side of one end of the rotating plate 607. The adsorption assembly 6 further includes a synchronous rod 609, an adjustment motor 610, and a sealing plate 611. The synchronous rod 609 is slidably connected inside the rotating plate 607, and an adjustment motor 610 is arranged at one end of the synchronous rod 609, and the adjustment motor 610 is fixed to the workbench 1. The sealing plate 611 is fixed at the top of the sliding seat 605, and the sealing plate 611 is slidably connected to the orifice plate 2. The adsorption assembly 6 further includes a sealing sleeve 612, a stop block 613, a return spring 614, and a fixing rod 615. Sealing sleeves 612 are arranged on both sides of the sealing plate 611, and a stop block 613 is fixed at the bottom of the sealing sleeve 612. A return spring 614 is arranged inside the sealing sleeve 612, and one end of the return spring 614 is connected to a fixing rod 615. The fixing rod 615 is slidably connected to the sealing sleeve 612, and the fixing rod 615 is fixed to the workbench 1. One end of the first vacuum generator 601 is connected to a dust collection assembly 7. The dust collection assembly 7 includes a second vacuum generator 701, a shunt hose 702, and a partition plate 703. One end of the first vacuum generator 601 is connected to the second vacuum generator 701, and a shunt hose 702 is arranged at the top of the middle part of the second vacuum generator 701. The shunt hose 702 is communicated with the inside of the box body 507, and a partition plate 703 is fixed inside the box body 507. The dust collection assembly 7 further includes a second spring seat 704, a filter plate 705, and a dust collection baffle 706. A second spring seat 704 is arranged at the top of one end of the partition plate 703, and a filter plate 705 is fixed at the top of the second spring seat 704. A dust collection baffle 706 is arranged inside the box body 507. The filter plate 705 is inclined, and the filter plate 705 is slidably connected to the partition plate 703 and the box body 507;

[0029] The specific operation is as follows: before placing the flexible circuit board on the top center of the orifice plate 2, the adjustment motor 610 is first started according to the approximate width of the flexible circuit board, so that it drives the synchronization rod 609 to rotate, and the angles of the rotating plates 607 on both sides are changed at the same time through the gear portion 608, so that it can contact with multiple blocks 613 at the same time, so as to adjust the width of the orifice plate 2 during subsequent adsorption, avoid affecting the overall adsorption effect due to too many invalid adsorption holes and continuous suction, and adapt to flexible circuit boards of various sizes, further improving the use range of the equipment, and then, when the box body 507 When moving horizontally, the first magnet 604 at the lower end of the synchronous frame 603 can also attract the second magnet 606 at the end of the slide 605, so that the slide 605 can be driven to move together through the inner side plate of the workbench 1, which is conducive to maintaining the sealing performance of the negative pressure chamber 602. When the slide 605 moves, the position of the sealing plate 611 can be changed. When the slide 605 moves, the stopper 613 can be pushed by the rotating plate 607, so that the sealing sleeves 612 on both sides can move synchronously. At the same time, the external pump body can deliver compressed air to the first vacuum generator 6 01, so that negative pressure is formed in the negative pressure chamber 602. Therefore, when the cleaning cotton 511 smoothes the flexible circuit board, it can absorb the smoothed position of the flexible circuit board, which is beneficial to maintaining the flatness of the flexible circuit board, thereby improving the subsequent detection accuracy. In addition, the air discharged from the first vacuum generator 601 is used to make the second vacuum generator 701 work, and the internal part of the box body 507 can be formed with a negative pressure through the diversion hose 702. Therefore, when the cleaning cotton 511 wipes the surface of the flexible circuit board, it will also absorb the dust and impurities attached to the surface, making it more convenient to clean. , and the flexible circuit board is pressed down and limited by the cleaning cotton 511 with multiple strips on one side to prevent the flexible circuit board from being sucked up due to excessive suction. At the same time, the partition 703 and the dust baffle 706 form an S-shaped flow channel inside the box body 507, and the second spring seat 704 is used to make the filter plate 705 easy to vibrate under external force, so that some dust impurities can be vibrated onto the dust baffle 706, which is helpful to reduce the blockage of the filter plate 705, and the dust baffle 706 can also block dust impurities to prevent them from falling directly from the dust hood 510.

[0030] In summary, when using the flexible board scratch detection device for the rear view module circuit of the reversing vehicle, the driving motor 501 is first started, so that it drives the two driving seats 503 to slide and center along the outer side of the limit rod 504 through the positive and negative threaded screws 502. At this time, the driving block 505 will push the box body 507 through the driving column 506, and when the two box bodies 507 are in contact with each other, as the driving seat 503 continues to move, the driving column 506 will drive the box body 507 to move upward under the guidance of the inclined surface inside the driving block 505. Then, the flexible circuit board is placed on the top center of the orifice plate 2, and the adjustment motor 610 is started according to the approximate width of the flexible circuit board, so that it drives the synchronization rod 609 to rotate, and simultaneously changes the two boxes through the tooth portion 608. By rotating the angle of the plate 607, it can contact multiple blocks 613 at the same time, so as to adjust the width of the orifice plate 2 during subsequent adsorption. Secondly, the driving motor 501 drives the positive and negative threaded screws 502 to rotate in opposite directions, so that the two driving seats 503 are separated from each other. At this time, the first spring seat 508 will push the box body 507 downward under the limit of the slider 509, so that the cleaning cotton 511 can be pressed on the middle part of the flexible circuit board. Then, as the driving seat 503 continues to move, the dust covers 510 on both sides can be pushed from the middle part of the flexible circuit board to both sides respectively, so that the flexible circuit board can be smoothed. Then, when the box body 507 moves horizontally, it will also pass through the first magnet 6 at the lower end of the synchronous frame 603. 04 The second magnet 606 at the end of the slide 605 can drive the slide 605 to move together through the internal side plate of the workbench 1, thereby changing the position of the sealing plate 611. When the slide 605 moves, it will also push the stopper 613 through the rotating plate 607, so that the sealing sleeves 612 on both sides can move synchronously. At the same time, the external pump body can deliver compressed air to the first vacuum generator 601, so that the negative pressure chamber 602 forms a negative pressure. Therefore, when the cleaning cotton 511 smoothes the flexible circuit board, it can adsorb the smoothed position of the flexible circuit board, which is beneficial to maintaining the flatness of the flexible circuit board. In the process of smoothing, the cleaning cotton 511 can also be used to clean the surface of the flexible circuit board. Wipe, then use the air discharged from the first vacuum generator 601 to operate the second vacuum generator 701, and form a negative pressure inside the box 507 through the diverter hose 702. Therefore, when the cleaning cotton 511 wipes the surface of the flexible circuit board, it will also suck up the dust and impurities attached to the surface. At the same time, the partition 703 and the dust collecting baffle 706 form an S-shaped flow channel inside the box 507, and the second spring seat 704 makes the filter plate 705 easy to vibrate under external force. Therefore, some dust and impurities can be shaken off to the dust collecting baffle 706 to avoid falling directly from the dust hood 510. Finally, after the flexible circuit board is smoothed and fixed, use the visual inspection head 4 to take pictures and detect.

[0031] The embodiments of the present invention are given for purposes of illustration and description, and are not exhaustive or limit the invention to the disclosed forms. Many modifications and variations are obvious to those of ordinary skill in the art. The embodiments are chosen and described in order to best explain the principles of the invention and its practical application, and to enable those of ordinary skill in the art to understand the invention and design various embodiments adapted to particular uses with various modifications.

Claims

1. A device for detecting scratches on a flexible board of a rearview module circuit, characterized in that: The invention comprises a workbench (1) and a smoothing component (5), wherein a perforated plate (2) is arranged at the center of the top of the workbench (1), a frame (3) is fixed at the outer end of the top of the workbench (1), and a visual inspection head (4) is arranged in the middle of the frame (3), the smoothing component (5) is arranged above the perforated plate (2), and the smoothing component (5) comprises a driving motor (501), a positive and negative threaded screw (502), a driving seat (503), a limiting rod (504), a driving block (505), a driving column (506), a box (507), a first spring seat (508), a slider (509), a dust cover (510) and a cleaning cotton (511), a driving motor (501) is arranged on one side of the frame (3), and a visual inspection head (4) is arranged in the middle of the frame (3), and a visual inspection head (4) is arranged on ... The ends of the drive seats (503) are connected to the front and back ends of the drive seats (503), the outer sides of the middle ends of the forward and reverse threaded screws (502) are sleeved, and the lower end of the drive seat (503) is internally slidably connected to a limit rod (504), the bottom of the drive seat (503) is fixed with a drive block (505), and the inside of the drive block (505) is slidably connected with a drive column (506), one end of the drive column (506) is fixed with a box body (507), and a first spring seat (508) is arranged at one end of the top of the box body (507), and a slider (509) is fixed to the top of the first spring seat (508), and a dust cover (510) is fixed to the bottom of the box body (507), and cleaning cotton (511) is arranged at both ends of the bottom of the dust cover (510).

2. The device for detecting scratches on a flexible board of a rearview module circuit according to claim 1, characterized in that: The slider (509) is slidably connected to the limiting rod (504), and the limiting rod (504) is fixedly connected to the frame (3).

3. The device for detecting scratches on a flexible board of a rearview module circuit according to claim 1, characterized in that: An adsorption assembly (6) is arranged below the orifice plate (2), and the adsorption assembly (6) comprises a first vacuum generator (601), a negative pressure chamber (602), a synchronous frame (603) and a first magnet (604). The first vacuum generator (601) is arranged at one end of the rear side of the workbench (1), and the middle end of the first vacuum generator (601) is connected to the negative pressure chamber (602). A synchronous frame (603) is fixed to one side of the box body (507), and the first magnet (604) is fixed to the lower part of the synchronous frame (603).

4. The device for detecting scratches on a flexible board of a rearview module circuit according to claim 3, characterized in that: The adsorption component (6) also includes a slide seat (605), a second magnet (606), a rotating plate (607) and a tooth portion (608); the slide seat (605) is slidably connected inside the workbench (1), and the second magnet (606) is fixed at one end of the slide seat (605); the upper end of the slide seat (605) is rotatably connected inside the rotating plate (607), and the tooth portion (608) is arranged on the outer side of one end of the rotating plate (607).

5. The device for detecting scratches on a flexible board of a rear view module circuit according to claim 4, characterized in that: The adsorption assembly (6) further comprises a synchronization rod (609), an adjustment motor (610) and a sealing plate (611); the interior of the rotating plate (607) is slidably connected with the synchronization rod (609), and one end of the synchronization rod (609) is provided with the adjustment motor (610), and the adjustment motor (610) is fixedly connected to the workbench (1); the top of the sliding seat (605) is fixedly provided with a sealing plate (611), and the sealing plate (611) is slidably connected to the orifice plate (2).

6. The device for detecting scratches on a flexible board of a rear view module circuit according to claim 5, characterized in that: The adsorption assembly (6) further comprises a sealing sleeve (612), a stopper (613), a return spring (614) and a fixing rod (615); the sealing sleeves (612) are arranged on both sides of the sealing plate (611), and the stopper (613) is fixed to the bottom of the sealing sleeve (612); the return spring (614) is arranged inside the sealing sleeve (612), and one end of the return spring (614) is connected to the fixing rod (615).

7. The device for detecting scratches on a flexible board of a rear view module circuit according to claim 6, characterized in that: The fixing rod (615) is slidably connected to the sealing sleeve (612), and the fixing rod (615) is fixedly connected to the workbench (1).

8. The device for detecting scratches on a flexible board of a rear view module circuit according to claim 3, characterized in that: One end of the first vacuum generator (601) is connected to a dust collecting assembly (7), and the dust collecting assembly (7) comprises a second vacuum generator (701), a diverter hose (702) and a partition (703). One end of the first vacuum generator (601) is connected to the second vacuum generator (701), and a diverter hose (702) is provided at the top of the middle part of the second vacuum generator (701). The diverter hose (702) is connected to the interior of the box (507), and a partition (703) is fixed inside the box (507).

9. The device for detecting scratches on a flexible board of a rearview module circuit according to claim 8, characterized in that: The dust collecting assembly (7) further comprises a second spring seat (704), a filter plate (705) and a dust collecting baffle (706); the second spring seat (704) is arranged on the top of one end of the partition plate (703), and the filter plate (705) is fixed on the top of the second spring seat (704); the dust collecting baffle (706) is arranged inside the box body (507).

10. The device for detecting scratches on a flexible board of a rear view module circuit according to claim 9, characterized in that: The filter plate (705) is inclined, and the filter plate (705) is slidably connected to the partition plate (703) and the box body (507).

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