High-resolution transmission-type PCBA (Printed Circuit Board Assembly) defect detection device

By designing an automatic separation and cleaning PCBA defect detection device, the problem of manual labeling of defective products in the prior art is solved, efficient product circulation and detection accuracy is achieved, and cost and scrapping rate are reduced.

CN120228058AInactive Publication Date: 2025-07-01HUAIAN COLLEGE OF INFORMATION TECH
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Patent Information

Application Number
CN202510585715.6
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-05-08
Publication Date
2025-07-01
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

Existing PCBA testing technology requires manual labeling or labeling to identify bad products, resulting in increased human resources and material consumption and reduced maintenance efficiency.

Method used

A high-resolution transmissive PCBA defect detection device is designed to automatically separate qualified and unqualified products through the motor-driven transfer assembly, and a vacuum pump and fall-proof assembly ensure the stability of the product during transportation, and the cleaning assembly is combined with the cleaning assembly to clean surface impurities to improve detection accuracy.

Benefits of technology

The manual marking process is simplified, the flow rate of products on the production line is improved, the production cost and product scrapping rate is reduced, and the accuracy and efficiency of inspection is ensured.

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Abstract

The invention belongs to the technical field of PCBA detection, and particularly relates to a high-resolution transmission-type PCBA defect detection device which comprises a workbench, a first motor, a rotating column, a transfer assembly, a defect detection assembly, an auxiliary conveying belt structure and a main conveying belt structure are arranged, and after PCBA detection is completed through the defect detection assembly, when a product has defects, the auxiliary conveying belt structure and the main conveying belt structure are separated from each other; the control panel can automatically send out a signal to control the transfer assembly to take the defective PCBA, then the driven plate is driven by the third motor to rotate, the PCBA is moved to the position above the auxiliary conveying belt structure, when the product is qualified, the PCBA is moved to the surface of the main conveying belt structure again, the defective product does not need to be marked or labeled manually, and the production efficiency is improved. And moreover, operators can quickly distinguish qualified and unqualified products and maintain the qualified and unqualified products in subsequent procedures, so that the consumption of manpower resources and materials caused by a marking link is simplified, and the circulation speed of the products on a production line is greatly increased.
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Description

Technical Field

[0001] The present invention belongs to the technical field of PCBA detection, and specifically relates to a high-resolution transmissive PCBA defect detection device. Background Art

[0002] High-resolution transmissive PCBA detection is based on the penetrability of light. By irradiating a light source on one side of the PCBA, the light passes through the PCBA and is received by a high-resolution camera or sensor on the other side. Since the internal components, solder joints, circuits, etc. of the PCBA have different absorption, reflection, and scattering characteristics for light, the outlines and details of these structures will be shown in the formed transmissive image. By performing real-time analysis and processing on the transmissive image, abnormal features that do not match the standard sample can be identified, thereby determining whether there are defects.

[0003] Existing detection technologies use an optical detection system to identify defective products and perform positioning and repair after detecting defects. However, there are certain limitations in this process: after optical detection, it is still necessary to rely on manual labor to mark or label the defect positions of defective products so that the operators in subsequent processes can quickly locate and handle the repair. This manual marking link not only consumes human resources and label materials but also reduces the overall repair efficiency.

[0004] Therefore, the present invention provides a high-resolution transmissive PCBA defect detection device. Summary of the Invention

[0005] In order to make up for the deficiencies of the prior art and solve at least one of the technical problems proposed in the background art.

[0006] The technical solution adopted by the present invention to solve its technical problems is as follows: A high-resolution transmissive PCBA defect detection device of the present invention includes a workbench. The surface of the workbench is respectively provided with a main conveyor belt structure and a secondary conveyor belt structure. A support column is fixedly installed on the upper surface of the main conveyor belt structure through a clamping frame. A groove is provided inside the support column. A first motor is arranged inside the groove. The output end of the first motor is fixedly installed with a rotating column. The top end of the rotating column is fixedly installed with a driven plate. A transfer component is arranged at one end of the driven plate. A defect detection component is arranged on the upper surface of the workbench. The defect detection component includes a detection frame fixedly installed on the upper surface of the workbench. A defect detector is arranged on the inner top wall of the detection frame. A control panel is arranged on the side surface of the detection frame. The control panel is electrically connected to the defect detector. The control panel is electrically connected to the first motor. A cleaning component is arranged on the surface of the detection frame.

[0007] The transfer component includes a first vacuum pump fixedly installed on the top of the driven plate. The input end of the first vacuum pump is fixedly installed with a connecting hose, and one end of the connecting hose is fixedly installed with a vacuum ring pipe. A plurality of adsorption pipes are annularly arranged on the lower surface of the vacuum ring pipe, and adsorption plates are fixedly installed on the outer surfaces of the adsorption pipes.

[0008] The lower surface of the driven plate is fixedly installed with a first electric push rod, and the bottom of the first electric push rod is fixedly installed with an adsorption plate. An anti-falling component is arranged on the outer surface of the driven plate.

[0009] The anti-falling component includes side frames fixedly installed on both sides of the driven plate. A bidirectional lead screw is rotatably connected inside the side frames. Both sides of the outer surface of the bidirectional lead screw are threadedly connected with first telescopic plates, and lower support plates are fixedly installed at the bottoms of the first telescopic plates.

[0010] A first sliding groove is formed on the surface of the first telescopic plate. A second telescopic plate is fixedly installed on the inner plate surface of the first telescopic plate, and the second telescopic plate is fixedly installed on the side surface of the adsorption plate. A groove is formed inside the driven plate, and a second motor is arranged inside the groove. The output end of the second motor is fixedly installed with a driving shaft, and a first bevel gear is fixedly installed on the outer surface of the driving shaft. A second bevel gear is meshed and connected to one side of the first bevel gear, and a bidirectional lead screw is fixedly installed inside the second bevel gear.

[0011] The defect detection component includes an electric sliding plate electrically slidably connected to the inner top wall of the detection frame. A defect detector is arranged on the lower surface of the electric sliding plate. A condenser tube is fixedly installed on the lower surface of the electric sliding plate through a connecting rod, and lighting lamps are annularly arranged on the inner side wall of the condenser tube.

[0012] A bearing frame is slidably connected to the upper surface of the detection frame. A bearing plate is arranged on the surface of the bearing frame, and a plurality of adsorbing members are arranged on the surface of the bearing plate. A driving tube is fixedly installed at the bottom of the adsorbing member, and one end of the driving tube is fixedly installed with a second vacuum pump. The second vacuum pump is fixedly installed on the side surface of the bearing frame. A connecting plate is fixedly installed on the lower surface of the bearing frame. A second sliding groove is formed on the surface of the detection frame, and the connecting plate is slidably connected inside the second sliding groove. One end of the connecting plate is fixedly installed with a second electric push rod, and the second electric push rod is fixedly installed on the lower surface of the detection frame.

[0013] The cleaning component includes a rectangular frame fixedly installed on the lower surface of the detection frame through a clamping frame. The lower surface of the rectangular frame is in an open shape. Support members are arranged on both sides of the inner top wall of the rectangular frame, and cleaning rollers are rotatably connected inside the support members.

[0014] Dust exhaust holes are provided on both sides of the rectangular frame, and a dust exhaust fan is rotatably connected inside the dust exhaust hole. A rotating shaft is fixedly installed on the side surface of the dust exhaust fan, and a driven gear is fixedly installed on the outer surface of the rotating shaft. A driving gear plate is meshingly connected at the bottom of the driven gear, and the driving gear plate is fixedly installed on the side surface of the supporting frame through a connecting rod.

[0015] The beneficial effects of the present invention are as follows:

[0016] 1. The high-resolution transmission type PCBA defect detection device described in the present invention is provided with a first motor, a rotating column, a transfer component, a defect detection component, a secondary conveyor belt structure and a main conveyor belt structure. After the PCBA is detected by the defect detection component, when there is a defect in the product, the control panel will automatically send a signal to control the transfer component to take the defective PCBA, and then the third motor drives the driven plate to rotate to move the PCBA to the top of the secondary conveyor belt structure. When the product is qualified, the PCBA is moved back to the surface of the main conveyor belt structure, and there is no need to manually mark or label the defective products, and it is convenient for operators in subsequent processes to quickly distinguish qualified and unqualified products and perform maintenance, which simplifies the human resources and material consumption generated by the marking link, and greatly improves the flow speed of products on the production line;

[0017] 2. The high-resolution transmission-type PCBA defect detection device described in the present invention, through the arrangement of the transfer component and the anti-drop component, the negative pressure generated by the vacuum pump can make the PCBA tightly adsorbed on the surface of the adsorption plate, effectively avoiding the displacement or shaking of the PCBA due to vibration, collision or tilt during the transportation process, ensuring that it maintains an accurate position on the transfer plate. The anti-drop component serves as a double insurance, and can effectively prevent the PCBA from falling from the transfer plate even when the vacuum pump fails or the adsorption force is insufficient. The anti-drop component can avoid damage caused by falling, thereby reducing production costs and product scrap rates;

[0018] 3. The high-resolution transmission-type PCBA defect detection device described in the present invention is provided with a cleaning component, a carrier frame, a carrier plate, a driving tube and a second vacuum pump. The PCBA board is placed on the surface of the carrier plate, and the PCBA board is adsorbed on the surface of the carrier plate by the second vacuum pump, and then moved to the bottom of the defect detection component. During the movement, the surface of the PCBA board is cleaned by the cleaning component, thereby greatly avoiding the influence of impurities on the detection equipment's recognition of the PCBA surface features. Cleaning the surface can fully expose these defects, which is convenient for the detection equipment to accurately identify and locate, and helps to timely discover potential quality problems and improve product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention will be further described below in conjunction with the accompanying drawings.

[0020] Figure 1 is the perspective view of the present invention;

[0021] Figure 2 is the schematic top - view structure diagram of the present invention;

[0022] Figure 3 is the schematic structure diagram of the transfer component and the anti - falling component in the present invention;

[0023] Figure 4 is Figure 3 the enlarged structure diagram at position A in

[0024] Figure 5 is the schematic structure diagram of the bearing frame and the bearing plate in the present invention;

[0025] Figure 6 is the schematic structure diagram of the cleaning component in the present invention;

[0026] Figure 7 is Figure 6 the enlarged structure diagram at position B in

[0027] Figure 8 is the partial structure schematic diagram of the defect detection component in the present invention.

[0028] In the figure: 1, workbench; 2, support column; 3, first motor; 4, rotating column; 5, driven plate; 6, transfer component; 601, first vacuum pump; 602, connecting hose; 603, vacuum ring pipe; 604, adsorption pipe; 605, adsorption plate; 606, first electric push rod; 7, anti - falling component; 701, bidirectional lead screw; 702, first telescopic plate; 703, lower support plate; 704, first bevel gear; 705, second bevel gear; 706, second motor; 8, auxiliary conveyor belt structure; 9, main conveyor belt structure; 10, defect detection component; 1001, defect detector; 1002, control panel; 1003, electric sliding plate; 1004, condenser tube; 1005, lighting lamp; 13, cleaning component; 1301, rectangular frame; 1302, dust exhaust fan; 1303, driven gear; 1304, driving rack; 1305, cleaning roller; 14, bearing frame; 15, bearing plate; 16, driving tube; 17, second vacuum pump. Detailed implementation manners

[0029] In order to make the technical means, creative features, achieved purposes and effects of the present invention easy to understand, the present invention will be further described below in conjunction with specific implementation manners.

[0030] Example 1: As Figures 1 to 8As shown in the figure, a high-resolution transmissive PCBA defect detection device includes a workbench 1. On the surface of the workbench 1, a main conveyor belt structure 9 and a secondary conveyor belt structure 8 are respectively arranged. On the upper surface of the main conveyor belt structure 9, a support column 2 is fixedly installed through a bracket. A groove is formed inside the support column 2, and a first motor 3 is arranged inside the groove. The output end of the first motor 3 is fixedly installed with a rotating column 4. The top end of the rotating column 4 is fixedly installed with a driven plate 5. One end of the driven plate 5 is provided with a transfer assembly 6. On the upper surface of the workbench 1, a defect detection assembly 10 is arranged. The defect detection assembly 10 includes a detection frame fixedly installed on the upper surface of the workbench 1. A defect detector 1001 is arranged on the inner top wall of the detection frame. A control panel 1002 is arranged on the side surface of the detection frame. The control panel 1002 is electrically connected to the defect detector 1001. The control panel 1002 is electrically connected to the first motor 3. A cleaning assembly 13 is arranged on the surface of the detection frame.

[0031] In this embodiment: The staff places the PCBA circuit board on the surface of the main conveyor belt structure 9. Then, through the transfer assembly 6, the PCBA circuit board to be detected needs to be adsorbed and fixed. Then, by starting the first motor 3, the support column 2 is driven to rotate. The support column 2 drives the driven plate 5 to rotate. The driven plate 5 drives the transfer assembly 6 below and the adsorbed PCBA circuit board to move synchronously, and places the adsorbed PCBA circuit board on the surface of the carrier plate 15. Then, the surface process of the PCBA circuit is detected through the defect detection assembly 10.

[0032] Specifically, when the defect detector 1001 detects that the PCBA circuit board is a non-conforming product, the non-conforming PCBA circuit board is reset. The defect detector 1001 transmits a signal to the control panel 1002. The control panel 1002 controls the first motor 3 to work. The first motor 3 drives the rotating column 4 to rotate. The rotating column 4 rotates inside the support column 2. The rotating column 4 drives the driven plate 5 and the transfer assembly 6 at one end to adsorb and transfer the non-conforming PCBA circuit board, and transfers it to the surface of the secondary conveyor belt structure 8. When the defect detector 1001 detects that the PCBA circuit board is a qualified product, it is re-transferred to the surface of the main conveyor belt structure 9 for movement. Thus, the qualified products and non-conforming products are separated and transported. There is no need for manual marking or labeling of defective products, and it is convenient for operators in subsequent processes to quickly distinguish between qualified and non-conforming products and perform maintenance. It simplifies the human resources and material consumption generated in the marking link and greatly improves the product turnover speed on the production line.

[0033] Embodiment Two:

[0034] As Figures 1 to 4As shown in the figure, the transfer component 6 includes a first vacuum pump 601 fixedly installed on the top of the driven plate 5. The input end of the first vacuum pump 601 is fixedly installed with a connecting hose 602. One end of the connecting hose 602 is fixedly installed with a vacuum ring pipe 603. The lower surface of the vacuum ring pipe 603 is provided with a plurality of adsorption pipes 604 arranged in an annular array. The outer surface of the adsorption pipe 604 is fixedly installed with an adsorption plate 605. The lower surface of the driven plate 5 is fixedly installed with a first electric push rod 606. The bottom of the first electric push rod 606 is fixedly installed with an adsorption plate 605. The outer surface of the driven plate 5 is provided with an anti-falling component 7. The anti-falling component 7 includes side frames fixedly installed on both sides of the driven plate 5. A bidirectional lead screw 701 is rotatably connected inside the side frames. Both sides of the outer surface of the bidirectional lead screw 701 are threadedly connected with a first telescopic plate 702. The bottom of the first telescopic plate 702 is fixedly installed with a lower support plate 703. The surface of the first telescopic plate 702 is provided with a first chute. The inner surface of the inner plate of the first telescopic plate 702 is fixedly installed with a second telescopic plate. The second telescopic plate is fixedly installed on the side surface of the adsorption plate 605. A groove is opened inside the driven plate 5. A second motor 706 is arranged inside the groove. The output end of the second motor 706 is fixedly installed with a drive shaft. The outer surface of the drive shaft is fixedly installed with a first bevel gear 704. One side of the first bevel gear 704 is meshed with a second bevel gear 705. The second bevel gear 705 is fixedly installed with a bidirectional lead screw 701.

[0035] In this embodiment: When it is necessary to transfer the PCBA circuit board, the staff starts the first electric push rod 606 to drive the lower adsorption plate 605 and the adsorption pipe 604 to move synchronously, so that the adsorption plate 605 and the adsorption pipe 604 are synchronously attached to the surface of the PCBA circuit board. Then, the first vacuum pump 601 is started. One end of the adsorption pipe 604 is evacuated of air through the connecting hose 602 and the vacuum ring pipe 603 to form a negative pressure, so that the PCBA circuit board is adsorbed on the lower surface of the adsorption plate 605. The negative pressure generated by the first vacuum pump 601 can tightly adsorb the PCBA on the surface of the adsorption plate 605, effectively avoiding the displacement or shaking of the PCBA caused by vibration, collision or inclination during the transfer process, and ensuring its accurate position on the transfer plate.

[0036] It should be noted that before the adsorption transfer, during the movement of the adsorption plate 605, the inner plate of the first telescopic plate 702 is driven by the second telescopic plate to slide downward synchronously, so that the lower support plate 703 is always located below the PCBA circuit board. Then, the second motor 706 is started to drive the drive shaft to rotate. The drive shaft drives the first bevel gear 704 to rotate. The first bevel gear 704 drives the engaged second bevel gear 705 to rotate. The second bevel gear 705 drives the internal bidirectional lead screw 701 to rotate. The rotation of the bidirectional lead screw 701 causes the first telescopic plates 702 on both sides to drive the lower support plate 703 at the bottom to move synchronously, so that the lower support plate 703 is located below the PCBA circuit board. Even if the vacuum pump fails or the adsorption force is insufficient, it can effectively prevent the PCBA from falling off the transfer plate. The anti-falling component 7 can avoid the damage caused by falling, reducing the production cost and the product rejection rate.

[0037] Embodiment 3:

[0038] As Figures 5 to 8 shown, the defect detection component 10 includes an electric slide plate 1003 that is electrically slidably connected to the inner top wall of the detection frame. A defect detector 1001 is provided on the lower surface of the electric slide plate 1003. A condenser barrel 1004 is fixedly installed on the lower surface of the electric slide plate 1003 through a connecting rod. A plurality of lighting lamps 1005 are annularly arranged on the inner side wall of the condenser barrel 1004. A carrying frame 14 is slidably connected to the upper surface of the detection frame. A carrying plate 15 is provided on the surface of the carrying frame 14. A plurality of adsorbing members are provided on the surface of the carrying plate 15. A driving pipe 16 is fixedly installed at the bottom of the adsorbing member. One end of the driving pipe 16 is fixedly installed with a second vacuum pump 17. The second vacuum pump 17 is fixedly installed on the side surface of the carrying frame 14. A connecting plate is fixedly installed on the lower surface of the carrying frame 14. A second chute is formed on the surface of the detection frame. The connecting plate is slidably connected to the inside of the second chute. One end of the connecting plate is fixedly installed with a second electric push rod. The second electric push rod is fixedly installed on the lower surface of the detection frame.

[0039] In this embodiment: When the PCBA circuit board is placed on the surface of the carrying plate 15, the second vacuum pump 17 is started, and the PCBA circuit board is adsorbed and positioned on the surface of the carrying plate 15 through the driving pipe 16 and the adsorbing members. Then, the second electric push rod is started to drive the carrying frame 14 and the internal PCBA circuit board to move synchronously below the defect detection component 10 for detection operations;

[0040] Furthermore, during detection, the PCBA circuit board is detected by the defect detector 1001, and the acquired digital image is transmitted to a computer or a dedicated image processing unit through an image acquisition card. The image acquisition card is responsible for converting the analog signal output by the camera into a digital signal and performing certain preprocessing, such as noise reduction, gain adjustment, etc., to improve the image quality. Then, the image data is transmitted to the processing unit through a high-speed bus or network for further analysis and results. The light emitted by the condenser barrel 1004 and the lighting lamp 1005 and the focusing of the light are used to improve the detection clarity for subsequent imaging and analysis.

[0041] Embodiment 4:

[0042] As Figure 6 shown in Figure 7 FIG. 10, the cleaning assembly 13 includes a rectangular frame 1301 fixedly installed on the lower surface of the detection frame through a card holder. The lower surface of the rectangular frame 1301 is open. Both sides of the inner top wall of the rectangular frame 1301 are provided with support members. A cleaning roller 1305 is rotatably connected inside the support members. Dust discharge holes are formed on both sides of the rectangular frame 1301. A dust discharge fan 1302 is rotatably connected inside the dust discharge holes. A rotating shaft is fixedly installed on the side surface of the dust discharge fan 1302. A driven gear 1303 is fixedly installed on the outer surface of the rotating shaft. A driving toothed plate 1304 is meshed and connected below the driven gear 1303. The driving toothed plate 1304 is fixedly installed on the side surface of the bearing frame 14 through a connecting rod.

[0043] In the embodiment: During the movement of the bearing frame 14, the driving toothed plates 1304 on both sides are driven to move synchronously through the connecting rod. The movement of the driving toothed plate 1304 causes the driven gear 1303 to rotate. During the movement of the bearing frame 14, the PCBA circuit board on the surface is driven to move from below the rectangular frame 1301 and rub against the internal cleaning roller 1305. During the rubbing process, the driven gear 1303 drives the dust discharge fan 1302 to rotate through the rotating shaft, thereby cleaning the dust generated by the friction and preventing it from remaining on the surface of the PCBA circuit board after friction cleaning. Thus, it greatly avoids the influence of impurities on the recognition of the surface features of the PCBA by the detection equipment. Cleaning the surface can completely expose these defects, facilitating the accurate recognition and positioning by the detection equipment, helping to timely discover potential quality problems and improve product quality.

[0044] The above front, back, left, right, up, and down are all based on the Figure 1 in the specification drawings and are defined according to the perspective of the observer. The side of the device facing the observer is defined as the front, and the left side of the observer is defined as the left, and so on.

[0045] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as limiting the protection scope of the present invention.

[0046] The foregoing has shown and described the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments, and what is described in the above embodiments and the specification is only to illustrate the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A high-resolution transmission-type PCBA defect detection device, characterized in that: The invention comprises a workbench (1), wherein the surface of the workbench (1) is respectively provided with a main conveyor belt structure (9) and a secondary conveyor belt structure (8), a support column (2) is fixedly mounted on the upper surface of the main conveyor belt structure (9) via a bracket, a groove is provided inside the support column (2), a first motor (3) is provided inside the groove, a rotating column (4) is fixedly mounted on the output end of the first motor (3), a driven plate (5) is fixedly mounted on the top end of the rotating column (4), and a transfer assembly (6) is provided at one end of the driven plate (5) The upper surface of the workbench (1) is provided with a defect detection component (10), the defect detection component (10) comprises a detection frame fixedly mounted on the upper surface of the workbench (1), the inner top wall of the detection frame is provided with a defect detector (1001), the side surface of the detection frame is provided with a control panel (1002), the control panel (1002) is electrically connected to the defect detector (1001), the control panel (1002) is electrically connected to a first motor (3), and the surface of the detection frame is provided with a cleaning component (13).

2. A high-resolution transmission-type PCBA defect detection device according to claim 1, characterized in that: The transfer assembly (6) comprises a first vacuum pump (601) fixedly mounted on the top of the driven plate (5); a connecting hose (602) is fixedly mounted on the input end of the first vacuum pump (601); a vacuum ring tube (603) is fixedly mounted on one end of the connecting hose (602); a plurality of adsorption tubes (604) are arranged in a circular array on the lower surface of the vacuum ring tube (603); an adsorption plate (605) is fixedly mounted on the outer surface of the adsorption tube (604).

3. A high-resolution transmission-type PCBA defect detection device according to claim 2, characterized in that: A first electric push rod (606) is fixedly mounted on the lower surface of the driven plate (5), an adsorption plate (605) is fixedly mounted on the bottom of the first electric push rod (606), and an anti-falling component (7) is provided on the outer surface of the driven plate (5).

4. The high-resolution transmission-type PCBA defect detection device according to claim 3, characterized in that: The anti-fall assembly (7) comprises a side frame fixedly mounted on both sides of the driven plate (5), the interior of the side frame is rotatably connected to a bidirectional screw rod (701), both sides of the outer surface of the bidirectional screw rod (701) are threadedly connected to a first telescopic plate (702), and a lower support plate (703) is fixedly mounted on the bottom of the first telescopic plate (702).

5. The high-resolution transmission-type PCBA defect detection device according to claim 4, characterized in that: A first slide groove is provided on the surface of the first telescopic plate (702), a second telescopic plate is fixedly installed on the inner plate surface of the first telescopic plate (702), the second telescopic plate is fixedly installed on the side surface of the adsorption plate (605), a groove is provided inside the driven plate (5), a second motor (706) is arranged inside the groove, a driving shaft is fixedly installed on the output end of the second motor (706), a first bevel gear (704) is fixedly installed on the outer surface of the driving shaft, one side of the first bevel gear (704) is meshedly connected with the second bevel gear (705), and a bidirectional screw rod (701) is fixedly installed inside the second bevel gear (705).

6. The high-resolution transmission-type PCBA defect detection device according to claim 1, characterized in that: The defect detection component (10) comprises an electric slide plate (1003) electrically slidably connected to the inner top wall of the detection frame, a defect detector (1001) is arranged on the lower surface of the electric slide plate (1003), a focusing tube (1004) is fixedly mounted on the lower surface of the electric slide plate (1003) via a connecting rod, and an inner side wall of the focusing tube (1004) is provided with a circular array of lighting lamps (1005).

7. The high-resolution transmission-type PCBA defect detection device according to claim 1, characterized in that: The upper surface of the detection frame is slidably connected to a carrying frame (14), the surface of the carrying frame (14) is provided with a carrying plate (15), the surface of the carrying plate (15) is provided with a plurality of adsorption members, a driving tube (16) is fixedly installed at the bottom of the adsorption member, one end of the driving tube (16) is fixedly installed with a second vacuum pump (17), the second vacuum pump (17) is fixedly installed on the side surface of the carrying frame (14), the lower surface of the carrying frame (14) is fixedly installed with a connecting plate, the surface of the detection frame is provided with a second slide groove, the connecting plate is slidably connected to the inside of the second slide groove, one end of the connecting plate is fixedly installed with a second electric push rod, and the second electric push rod is fixedly installed on the lower surface of the detection frame.

8. The high-resolution transmission-type PCBA defect detection device according to claim 7, characterized in that: The cleaning component (13) comprises a rectangular frame (1301) fixedly mounted on the lower surface of the detection frame via a card frame, the lower surface of the rectangular frame (1301) is arranged to be open, support members are arranged on both sides of the inner top wall of the rectangular frame (1301), and a cleaning roller (1305) is rotatably connected inside the support member.

9. The high-resolution transmission-type PCBA defect detection device according to claim 8, characterized in that: Dust exhaust holes are provided on both sides of the rectangular frame (1301), and a dust exhaust fan (1302) is rotatably connected inside the dust exhaust hole. A rotating shaft is fixedly installed on the side surface of the dust exhaust fan (1302), and a driven gear (1303) is fixedly installed on the outer surface of the rotating shaft. A driving gear plate (1304) is meshingly connected below the driven gear (1303), and the driving gear plate (1304) is fixedly installed on the side surface of the supporting frame (14) through a connecting rod.