An electronic product circuit board solder joint automatic detection device
By designing an automated testing device, efficient and accurate testing of circuit board solder joints was achieved, solving the problems of low efficiency and high error rate of traditional testing methods, and meeting the high precision and high efficiency requirements of modern electronic manufacturing.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SUZHOU HAOJI PRECISION MASCH CO LTD
- Filing Date
- 2025-06-09
- Publication Date
- 2026-07-07
AI Technical Summary
Traditional manual visual inspection methods are inefficient, have a high rate of missed detections, and poor consistency. Existing automated inspection systems have a high rate of misjudgment in the face of complex and ever-changing solder joint morphology, reflective interference, and the identification of minute defects, making it difficult to meet the high precision and high efficiency requirements of modern electronic manufacturing.
Design an automated solder joint inspection device for electronic product circuit boards, including an automated solder joint inspection machine for circuit boards, equipped with a data display and a control console. The circuit board is automatically transported by a transmission drive motor that drives the transmission roller. The position of the inspection probe is adjusted by a sliding adjustment plate and a drive threaded rod. The inspection probe is used to inspect the solder joints. A sealed slide rail is installed in the inspection chamber to prevent dust from entering.
It improves the efficiency and accuracy of solder joint inspection, ensures the cleanliness of the inspection chamber, reduces the false judgment rate, and meets the high precision and high efficiency requirements of modern electronic manufacturing.
Smart Images
Figure CN224471797U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of circuit board solder joint detection technology, and in particular to an automated detection device for circuit board solder joints in electronic products. Background Technology
[0002] With the rapid development of the electronics industry, the miniaturization, high density, and multifunctionality of electronic products have placed higher demands on the manufacturing process of printed circuit boards (PCBs). Solder joints, as a critical connection between electronic components and the PCB, directly affect the electrical performance, mechanical strength, and long-term reliability of the product. Traditional manual visual inspection methods rely on operator experience, resulting in low efficiency, high missed detection rates, and poor consistency, making it difficult to meet the high precision and efficiency requirements of modern electronic manufacturing. Existing automated inspection systems still face challenges such as high misjudgment rates and insufficient adaptability in identifying complex and varied solder joint morphologies, reflective interference, and minute defects. Therefore, we designed an automated solder joint inspection device for electronic product PCBs. Utility Model Content
[0003] The purpose of this utility model is to provide an automated testing device for solder joints on circuit boards of electronic products.
[0004] To solve the above-mentioned technical problems, this utility model provides the following technical solution: an automated testing device for solder joints on electronic product circuit boards, comprising an automated solder joint testing machine for circuit boards, a data display fixedly mounted on the top of one side of the automated solder joint testing machine, a control console provided on the side of the automated solder joint testing machine near the data display, an external connecting groove formed on the outer wall surface of one side of the automated solder joint testing machine, a transmission platform fixedly connected to the surface of the automated solder joint testing machine near the external connecting groove, an installation plate fixedly mounted on the top of one side of the transmission platform, a transmission drive motor fixedly mounted on the back side of one side of the installation plate, a transmission roller rotatably connected to the inner wall of one side of the installation plate, a conveyor belt drivingly connected to one side of the transmission roller, a circuit board limiting installation plate placed on the top surface of one side of the conveyor belt, and a circuit board body detachably mounted on the top surface of one side of the circuit board limiting installation plate.
[0005] Preferably, the external connecting slot penetrates the interior of the automated circuit board solder joint inspection machine. There are two external connecting slots, which are symmetrically distributed on both sides of the top of the automated circuit board solder joint inspection machine. A transmission table is fixedly installed on the side of the automated circuit board solder joint inspection machine closest to the external connecting slot. The transmission drive motor and the transmission roller are connected by a drive connection. The circuit board limiting mounting plate and the circuit board body are connected by a movable snap-fit connection.
[0006] Preferably, the automated circuit board solder joint inspection machine has an inspection chamber inside one side, a sliding rail is fixedly installed on the top of the inner wall of one side of the inspection chamber, a sliding adjustment plate is slidably connected to one side surface of the sliding rail, and a sliding connecting plate is fixedly connected to the top of one side of the sliding adjustment plate.
[0007] Preferably, a drive threaded rod is movably installed inside the sliding connecting plate, a sliding limiting plate is movably installed on one side surface of the drive threaded rod, a drive detector is fixedly connected to one side bottom end of the sliding limiting plate, a telescopic rod is telescopically connected to one side bottom end of the drive detector, a detection probe is fixedly installed on one side top surface of the telescopic rod, a sliding limiting rail is fixedly installed on one side inner wall of the sliding connecting plate, and a drive motor is fixedly installed on one side top outer wall of the sliding connecting plate.
[0008] Preferably, the drive motor and the drive threaded rod are connected by a drive connection, the drive threaded rod passes through the interior of the sliding limit plate, the drive threaded rod and the sliding limit plate are connected by a threaded drive connection, the drive detector and the telescopic rod are connected by a drive connection, and the sliding limit plate and the sliding limit rail are connected by a sliding connection.
[0009] Preferably, a sealed slide rail is fixedly installed on the top side of the circuit board solder joint automated inspection machine near the inspection chamber. The sealed slide rail has a sliding connection groove inside, and a sealed top cover is movably installed inside the sliding connection groove. A cover handle is fixedly installed on the top surface of one side of the sealed top cover. The connection between the sealed slide rail and the sealed top cover is a movable snap-fit.
[0010] Compared with related technologies, the automated testing device for solder joints on electronic product circuit boards provided by this utility model has the following advantages:
[0011] 1. This utility model provides an automated solder joint inspection device for electronic product circuit boards. The circuit board to be inspected is directly installed inside a circuit board positioning mounting plate, which is then placed on the top surface of a conveyor belt. A transmission drive motor drives a transmission roller to rotate, thus using the roller to transmit power to the conveyor belt and transport the circuit board to the inspection chamber. A data display and control console are used in conjunction with an inspection instrument to automatically inspect the solder joints of the circuit board. After inspection, the circuit board is directly transferred out from the other end of the automated solder joint inspection machine, facilitating loading and unloading and improving the device's inspection efficiency.
[0012] 2. This utility model provides an automated testing device for solder joints on electronic product circuit boards. By setting a sliding adjustment disc to slide on a sliding rail, the position of the sliding connecting disc can be directly adjusted. A drive motor controls the rotation of a drive threaded rod, which in turn adjusts the overall position of the sliding limit disc. The drive detector controls the extension and retraction of a telescopic rod. The solder joints on the circuit board are then visually inspected using a detection probe. The sliding limit rail assists in limiting the sliding of the sliding limit disc within the sliding connecting disc, improving the stability of the sliding limit disc's movement. A sealed sliding rail is installed at the top of the side of the automated circuit board solder joint testing machine near the testing chamber. A sealed top cover is installed inside the sealed sliding rail to seal the testing chamber, preventing dust from entering when the device is not in use and improving the cleanliness of the testing chamber's interior. Attached Figure Description
[0013] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0014] Figure 2 This is a schematic diagram of the internal structure of the detection chamber of this utility model from top view.
[0015] Figure 3 This is a side view of the detection device of this utility model.
[0016] Figure 4 This is a schematic diagram of the connection structure between the sealing slide rail and the sealing top cover of this utility model.
[0017] The diagram shows the following components: 1. Automated solder joint inspection machine for PCBs; 2. Data display; 3. Control console; 4. External connecting groove; 5. Transmission table; 6. Mounting plate; 7. Transmission drive motor; 8. Transmission roller; 9. Conveyor belt; 10. PCB limit mounting plate; 11. PCB body; 12. Inspection chamber; 13. Sliding rail; 14. Sliding adjustment plate; 15. Sliding connecting plate; 16. Drive threaded rod; 17. Sliding limit plate; 18. Drive detector; 19. Telescopic rod; 20. Inspection probe; 21. Sliding limit rail; 22. Drive motor; 23. Sealed slide rail; 24. Sliding connecting groove; 25. Sealed top cover; 26. Cover handle. Detailed Implementation
[0018] Example 1:
[0019] Please see Figure 1-4This utility model provides a technical solution: an automated testing device for solder joints on electronic product circuit boards, including an automated solder joint testing machine 1. A data display 2 is fixedly installed on the top of one side of the automated solder joint testing machine 1. A control console 3 is provided on the side of the automated solder joint testing machine 1 near the data display 2. An external connecting groove 4 is formed on the outer wall surface of one side of the automated solder joint testing machine 1. A transmission platform 5 is fixedly connected to the surface of the automated solder joint testing machine 1 near the external connecting groove 4. A mounting plate 6 is fixedly installed on the top of one side of the transmission platform 5. A transmission drive motor 7 is fixedly installed on the back side of one side of the mounting plate 6. A transmission drive motor 7 is rotatably connected to the inner wall of one side of the mounting plate 6. Roller 8, a conveyor belt 9 is connected to one side of the conveyor roller 8. A circuit board limiting mounting plate 10 is placed on the top side of one side of the conveyor belt 9. A circuit board body 11 is detachably mounted on the top side of one side of the circuit board limiting mounting plate 10. An external connecting groove 4 penetrates the interior of the circuit board solder joint automatic inspection machine 1. There are two external connecting grooves 4, which are symmetrically distributed on the top sides of the circuit board solder joint automatic inspection machine 1. A transmission table 5 is fixedly installed on the side of the circuit board solder joint automatic inspection machine 1 closest to the external connecting groove 4. The transmission drive motor 7 and the conveyor roller 8 are connected by a drive connection. The circuit board limiting mounting plate 10 and the circuit board body 11 are connected by a movable snap-fit.
[0020] In the implementation plan, the circuit board body 11 to be inspected is directly installed inside the circuit board limiting mounting plate 10, and the circuit board limiting mounting plate 10 is placed directly on the top surface of the conveyor belt 9. The transmission drive motor 7 drives the transmission roller 8 to rotate, thereby using the transmission roller 8 to transmit the circuit board body 11 to the inside of the inspection chamber 12. The data display 2 and the control console 3 are used together to perform automated solder joint inspection on the circuit board body 11 using the inspection instrument. After inspection, the circuit board body 11 can be directly transferred out from the other end of the automated circuit board solder joint inspection machine 1, which facilitates loading and unloading and improves the inspection efficiency of the device.
[0021] Example 2:
[0022] Please see Figure 1-4This utility model provides a technical solution: an automated testing device for solder joints on electronic product circuit boards, comprising a testing chamber 12 inside one side of an automated solder joint testing machine 1; a sliding rail 13 fixedly installed at the top of the inner wall of one side of the testing chamber 12; a sliding adjustment plate 14 slidably connected to one side surface of the sliding rail 13; a sliding connecting plate 15 fixedly connected to the top of one side of the sliding adjustment plate 14; a driving threaded rod 16 movably installed inside the sliding connecting plate 15; a sliding limiting plate 17 movably installed on one side surface of the driving threaded rod 16; a driving detector 18 fixedly connected to the bottom of one side of the sliding limiting plate 17; a telescopic rod 19 telescopically connected to the bottom of one side of the driving detector 18; a testing probe 20 fixedly installed on the top surface of one side of the telescopic rod 19; and a sliding limiting rail 21 fixedly installed on the inner wall of one side of the sliding connecting plate 15. A drive motor 22 is fixedly installed on the outer wall of one side of the sliding connecting plate 15. The drive motor 22 and the drive threaded rod 16 are connected by a drive connection. The drive threaded rod 16 passes through the interior of the sliding limit plate 17. The drive threaded rod 16 and the sliding limit plate 17 are connected by a threaded drive connection. The drive detector 18 and the telescopic rod 19 are connected by a drive connection. The sliding limit plate 17 and the sliding limit rail 21 are connected by a sliding connection. A sealing slide rail 23 is fixedly installed on the top side of the circuit board solder joint automatic inspection machine 1 near the inspection chamber 12. A sliding connecting groove 24 is opened inside the sealing slide rail 23. A sealing top cover 25 is movably installed inside the sliding connecting groove 24. A cover handle 26 is fixedly installed on the top surface of one side of the sealing top cover 25. The sealing slide rail 23 and the sealing top cover 25 are connected by a movable snap-fit.
[0023] In the implementation scheme, the position of the sliding connecting plate 15 can be directly adjusted by setting the sliding adjustment plate 14 to slide on the sliding rail 13. The rotation of the drive threaded rod 16 is controlled by the drive motor 22, and the overall position of the sliding limit plate 17 is adjusted by the transmission adjustment of the drive threaded rod 16. The extension and retraction height of the telescopic rod 19 is controlled by the drive detector 18. The solder joints of the circuit board body 11 can be directly inspected by the detection probe 20. The sliding limit rail 21 assists in the sliding limit plate 17 to slide and limit inside the sliding connecting plate 15, improving the stability of the moving position of the sliding limit plate 17. A sealed slide rail 23 is set at the top of the side of the circuit board solder joint automated inspection machine 1 near the inspection chamber 12. A sealed top cover 25 is installed inside the sealed slide rail 23 to seal the inspection chamber 12, preventing dust from entering when the device is not in use and improving the cleanliness of the inside of the inspection chamber 12.
[0024] Working principle:
[0025] The circuit board body 11 to be inspected is directly installed inside the circuit board limiting mounting plate 10. The circuit board limiting mounting plate 10 is placed directly on the top surface of the conveyor belt 9. The transmission drive motor 7 drives the transmission roller 8 to rotate, thereby using the transmission roller 8 to transmit the circuit board body 11 to the inside of the inspection chamber 12. The data display 2 and the control console 3 are used together to perform automated solder joint inspection on the circuit board body 11 using the inspection instrument. After inspection, the circuit board body 11 can be directly transmitted out from the other end of the automated solder joint inspection machine 1, which facilitates loading and unloading and improves the inspection efficiency of the device.
[0026] By setting the position of the sliding adjustment plate 14 on the sliding rail 13, the position of the sliding connecting plate 15 can be directly adjusted. The drive motor 22 controls the rotation of the drive threaded rod 16, and the drive threaded rod 16 adjusts the sliding limit plate 17 to adjust its overall position. The drive detector 18 controls the extension and retraction height of the telescopic rod 19. The detection probe 20 can be used to visually inspect the solder joints of the circuit board body 11. The sliding limit rail 21 assists in the sliding limit plate 17 within the sliding connecting plate 15, improving the stability of the sliding limit plate 17's movement. A sealed slide rail 23 is set at the top of the side of the circuit board solder joint automated inspection machine 1 near the inspection chamber 12. A sealed top cover 25 is installed inside the sealed slide rail 23 to seal the inspection chamber 12, preventing dust from entering when the device is not in use and improving the cleanliness of the inspection chamber 12.
Claims
1. An automated testing device for solder joints on electronic product circuit boards, comprising an automated solder joint testing machine (1), wherein a data display (2) is fixedly mounted on the top of one side of the front of the automated solder joint testing machine (1), characterized in that: The automated circuit board solder joint inspection machine (1) has a control console (3) on the side near the data display (2). An external connecting groove (4) is opened on the outer wall surface of one side of the automated circuit board solder joint inspection machine (1). A transmission table (5) is fixedly connected to the surface of the automated circuit board solder joint inspection machine (1) near the external connecting groove (4). An installation plate (6) is fixedly installed on the top of one side of the transmission table (5). A transmission drive motor (7) is fixedly installed on the back side of one side of the installation plate (6). A transmission roller (8) is rotatably connected to the inner wall of one side of the installation plate (6). A conveyor belt (9) is drivenly connected to one side of the surface of the transmission roller (8). A circuit board limiting installation plate (10) is placed on the top surface of one side of the conveyor belt (9). A circuit board body (11) is detachably installed on the top surface of one side of the circuit board limiting installation plate (10).
2. The automated testing device for solder joints on electronic product circuit boards according to claim 1, characterized in that, The external connecting groove (4) penetrates the interior of the automated circuit board solder joint inspection machine (1). There are two external connecting grooves (4). The two external connecting grooves (4) are symmetrically distributed on the top of both sides of the automated circuit board solder joint inspection machine (1). A transmission table (5) is fixedly installed on the side of the automated circuit board solder joint inspection machine (1) near the external connecting groove (4). The transmission drive motor (7) and the transmission roller (8) are connected by a drive connection. The circuit board limiting mounting plate (10) and the circuit board body (11) are connected by a movable snap-fit.
3. The automated testing device for solder joints on electronic product circuit boards according to claim 1, characterized in that, The automated solder joint testing machine (1) for circuit boards has a testing chamber (12) inside one side. A sliding rail (13) is fixedly installed on the top of the inner wall of one side of the testing chamber (12). A sliding adjustment plate (14) is slidably connected to one side surface of the sliding rail (13). A sliding connecting plate (15) is fixedly connected to the top of one side of the sliding adjustment plate (14).
4. The automated testing device for solder joints on electronic product circuit boards according to claim 3, characterized in that, A drive threaded rod (16) is movably installed inside the sliding connecting plate (15). A sliding limiting plate (17) is movably installed on one side surface of the drive threaded rod (16). A drive detector (18) is fixedly connected to the bottom side of the sliding limiting plate (17). A telescopic rod (19) is telescopically connected to the bottom side of the drive detector (18). A detection probe (20) is fixedly installed on the top side surface of the telescopic rod (19). A sliding limiting rail (21) is fixedly installed on the inner wall of one side of the sliding connecting plate (15). A drive motor (22) is fixedly installed on the outer wall of the top side of one side of the sliding connecting plate (15).
5. The automated testing device for solder joints on electronic product circuit boards according to claim 4, characterized in that, The connection between the drive motor (22) and the drive threaded rod (16) is a drive connection. The drive threaded rod (16) passes through the interior of the sliding limit plate (17). The connection between the drive threaded rod (16) and the sliding limit plate (17) is a threaded drive connection. The connection between the drive detector (18) and the telescopic rod (19) is a drive connection. The connection between the sliding limit plate (17) and the sliding limit rail (21) is a sliding connection.
6. The automated testing device for solder joints on electronic product circuit boards according to claim 1, characterized in that, The automated circuit board solder joint inspection machine (1) has a sealed slide rail (23) fixedly installed on the top side of the side near the inspection chamber (12). The sealed slide rail (23) has a sliding connection groove (24) inside. A sealed top cover (25) is movably installed inside the sliding connection groove (24). A cover handle (26) is fixedly installed on the top surface of one side of the sealed top cover (25). The connection relationship between the sealed slide rail (23) and the sealed top cover (25) is a movable snap-fit.