Integrated circuit tin-plated IC device weldability testing and judging multifunctional equipment and method

Abstract

The invention relates to the field of integrated circuit packaging testing, in particular to a multifunctional device and method for testing and judging the weldability of a tin-plated IC device of an integrated circuit. The device mainly comprises a shell, a supporting truss, a driving motor, a weldability testing area, a Vision detection area, a touch control type LCD display screen and an operation system. Wherein the shell has a protection effect on internal parts, the support truss has the characteristics of light weight and durability, a soldering flux groove, an ultrasonic cleaning groove and a solder groove are distributed in the weldability test area, the Vision detection area comprises a high-definition camera and a visual movement motor, and a clear and bright image is provided by utilizing an LED backlight technology. The operating system provides a user-friendly interface and rich application programs based on the latest intelligent equipment operating system (PLC) technology, a user can simultaneously immerse a plurality of experimental products into solder for testing at a time, high repeatability and reproducibility are achieved, the efficiency and quality in the solderability testing experiment process are improved, and the application prospect is wide. And the user can enjoy more intelligent and convenient experience.

Description

Technical Field

[0001] The invention belongs to the technical field of integrated circuit packaging and testing, and in particular relates to a multifunctional device and method for testing and determining the solderability of tin-plated integrated circuit IC devices. Background Art

[0002] The solderability test of the tin plating of the pins of integrated circuit components is of great significance to the quality and reliability of electronic products. Products with good solderability can ensure the quality of welding and ensure the stability and reliability of electronic equipment. At present, the solderability test method and appearance acceptance are implemented according to the "EIA / IPC / JEDEC J-STD-002E CN" standard. EIA / IPC / JEDECJ-STD-002E CN has clear provisions for the solderability test process and acceptance standards of components. The tin immersion device should be implemented by mechanical or electromechanical immersion. However, most manufacturers still use the "manual tin immersion" method and "manual judgment" to achieve it. Even if the materials used are strictly controlled according to the standards, a person may draw different conclusions when performing the same test at different times, and it is impossible to maintain repeatability and reproducibility (gauge Repeatability & Reproducibility); In addition, how to objectively and accurately judge after the solderability test is completed has also become a major pain point in the solderability test process of components. At present, the manual judgment method is still used, which is also affected by subjective factors and human judgment.

[0003] Based on this, it is very necessary to propose an automated solderability tinning equipment that integrates automatic tinning and judgment. Summary of the invention

[0004] The present invention provides a multifunctional device and method for testing and judging the solderability of tin-plated integrated circuit IC devices, so as to solve the technical problems existing in the prior art that repeatability and reproducibility cannot be maintained when manual tinning is performed during solderability tests, and manual judgment after the solderability tests are completed is not objective and accurate.

[0005] In order to achieve the above object, the present invention adopts the following technical solution: A multifunctional device for testing and judging the solderability of tin-plated integrated circuit IC devices, comprising a product clamp and a flat machine platform, wherein the product clamp is above the flat machine platform, the product clamp clamps the test product, the Y-axis servo motor and the Z-axis servo motor connect the product clamp, and the flat machine platform is provided with a flux placement area, a solder pool and a Vision detection module.

[0006] The lower end of the Y-axis servo motor is connected to a supporting truss, a Y-axis belt track is arranged on the supporting truss, the Y-axis servo motor is connected to a Y-axis roller, and the top end of the Y-axis roller is connected to the Y-axis belt track.

[0007] A supporting slider is connected to the Y-axis belt track, and the product clamping jaw drives the product clamping jaw to move along the Y-axis belt track through the supporting slider.

[0008] A Z module is connected to the supporting slider, and the upper end of the Z module is connected to the Z-axis servo motor through a coupling. The Z-axis servo motor drives the coupling to drive the Z module to move up and down.

[0009] The lower end of the Z module is connected to the product clamping claw angle block, and the lower end of the product clamping claw angle block is connected to the product clamping claw.

[0010] The outer side of the supporting truss is set on an acrylic protective cover, and a touch-screen LCD display is provided on the acrylic protective cover. The touch-screen LCD display is connected to a PLC control system. All control instructions are sent to the PLC control system through the touch-screen LCD display. The PLC control system receives the control instructions and controls the Y-axis servo motor and the Z-axis servo motor.

[0011] The flat machine is also provided with an ultrasonic cleaning area. The solder pool, flux placement area and ultrasonic cleaning area are surrounded by insulation panels, and dust covers are provided on top of them. A two-way exhaust port is provided on the left side of the solder pool.

[0012] A tin scraping module is arranged above the solder pool. The tin scraping module comprises a tin scraping motor and a tin scraping plate. The tin scraping motor is connected to the first screw rod. One end of the first screw rod is connected to a slider. The slider is arranged on the first X-axis guide rail.

[0013] The vision detection module on the flat machine includes a vision detection lens and a vision moving motor. The vision moving motor is connected to the vision detection lens through a second screw. The vision detection lens is set on the X-axis guide rail. The vision moving motor drives the second screw to rotate. The rotation of the second screw causes the vision detection lens to move along the X-axis guide rail.

[0014] A method for testing and judging the solderability of tin-plated integrated circuit IC devices. A Y-axis servo motor and a Z-axis servo motor drive product grippers to sequentially pass through a solder pool and a flux placement area on a flat machine table to perform a solderability test. The Y-axis servo motor and the Z-axis servo motor move into a Vision detection module, and the Vision detection module determines the solderability of the product after the test.

[0015] Compared with the prior art, the present invention has the following beneficial effects: The present invention discloses a multifunctional device for testing and judging the solderability of tin-plated integrated circuit IC devices, which introduces the design of product clamps and flat machines, making the clamping and positioning of the test products more stable and reliable, laying the foundation for the subsequent automated test process, and improving the convenience of operation and the efficiency of test preparation. The precise control of the Y-axis servo motor and the Z-axis servo motor ensures the precise positioning of the product clamps in key areas such as the flux placement area and the solder pool. Each test step can be performed under completely consistent conditions, solving the problem of inconsistent test results caused by differences in hand movements during manual operation, and improving the stability and repeatability of the test process. The integrated Vision detection module automatically analyzes the quality of the product after welding, replacing subjective manual visual inspection, and significantly improving the objectivity and accuracy of the judgment results.

[0016] Furthermore, the combination of the Y-axis servo motor and the supporting truss, the Y-axis belt track and the roller wheel enables the precise and rapid movement of the product gripper along the Y-axis, improving the positioning accuracy and response speed of the equipment, thereby enhancing the accuracy and efficiency of the test.

[0017] Furthermore, the combination of the support slider and the Y-axis belt track makes the movement of the product clamp in the Y-axis direction more stable and smooth, reduces vibration and position deviation, and improves the stability of the test process.

[0018] Furthermore, the addition of the Z module controls the up and down movement of the product clamp through the Z-axis servo motor, achieving precise operation in three-dimensional space, helping to complete welding tests on complex parts and improving the comprehensiveness and flexibility of the test.

[0019] Furthermore, the design of the product gripper angle block has the function of adjusting the angle at will; by adjusting the angle on the product angle block, adjustment at any angle can be achieved, which is convenient for testing different types of products; the gripper can adjust the angle to adapt to IC devices of different shapes and sizes, thereby increasing the scope of application of the equipment and the accuracy of the test.

[0020] Furthermore, the setting of the acrylic protective cover not only protects the internal precision components, but also improves the safety and aesthetics of the equipment, while the integration of the touch-screen LCD display provides an intuitive operating interface, simplifies the operating process, and enhances the user experience.

[0021] Furthermore, the introduction of the PLC control system enables the equipment to receive and execute control instructions more efficiently, enhancing the degree of automation and response speed, while facilitating programmed management and improving the overall level of intelligent control.

[0022] Furthermore, the setting of the ultrasonic cleaning area ensures the cleanliness of the device before testing, which helps to improve the welding quality; the design of the insulation board effectively isolates the external temperature influence and maintains the stability of the test environment. The automatic cleaning mechanism of the tin scraping module maintains the good condition of the solder pool and extends the service life of the equipment.

[0023] Furthermore, dust covers are set on the Vision inspection area, flux placement area, ultrasonic cleaning area and solder area in the flat platform. A two-way exhaust vent is set on the left side of the solder pool. They need to be opened in sequence before the equipment experiment and can be closed at any time after the equipment is used. This can prevent dust and harmful impurities from falling into the flux and solder to contaminate the reagents, thereby improving the accuracy of the solderability test.

[0024] Furthermore, the Vision inspection lens automatically moves on the X-axis guide rail through the vision moving motor, achieving all-round high-precision inspection of the test product, improving the inspection coverage and accuracy, and reducing missed inspections and misjudgments.

[0025] Furthermore, the described test and judgment method ensures the standardization and automation of the solderability test by precisely controlling the entire test process through a servo motor and combining it with the objective judgment of the Vision detection module, which greatly improves the reliability and consistency of the test results and solves the many limitations of manual operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 : Schematic diagram of main components of integrated circuit tinning IC device solderability test and determination multifunctional equipment; Figure 2 : Schematic diagram of partial details of the flat machine; Figure 3 : Schematic diagram of the top view of the multifunctional equipment for testing and judging the solderability of integrated circuit tin-plated IC devices; Figure 4 : Schematic diagram of the Z module structure; Figure 5 : Schematic diagram of the tin scraping module structure; Figure 6 : Schematic diagram of the Vision detection module structure; Figure 7 :Integrated circuit tinning IC device solderability test, judgment control logic diagram of multi-function equipment.

[0027] Label: 1. Support truss; 2. Support slider; 3. Z module; 4. Z-axis servo motor; 5. Coupling; 6. Product clamp; 7. Product clamp angle block; 8. Y-axis servo motor; 9. Y-axis roller; 10. Y-axis belt track; 11. Touch LCD display screen; 12. Flat machine; 13. Tin scraping module; 14. Solder pool; 15. Ultrasonic cleaning area; 16. Flux placement area; 17. Vision detection module; 18. Tin scraping motor; 19. First screw; 20. Slider; 21. Tin scraper; 22. Vision moving motor; 23. First X-axis guide rail; 24. Dust cover; 25. Two-way exhaust port; 26. PLC control system; 27. Vision detection lens; 28. Second X-axis guide rail; 29. ​​Second screw; 30 Acrylic protective cover. DETAILED DESCRIPTION

[0028] In order to further understand the content of the present invention, the present invention is described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the embodiments are only for explaining the present invention and are not intended to limit it.

[0029] The embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0030] See also Figures 1 to 7, showing the overall appearance design of the multifunctional equipment for testing and judging the solderability of tinned integrated circuit IC devices. The main body of the equipment is wrapped by a solid acrylic protective cover 30. The acrylic protective cover 30 is composed of polished stainless steel plate and acrylic high-temperature resistant plate. The design is in line with the concept of environmental protection and has the functions of preventing dust and protecting internal components. The front end of the acrylic protective cover 30 is equipped with a touch-screen LCD display 11. The user can operate the equipment through the touch-screen LCD display 11. The touch-screen LCD display 11 sends a control signal to the PLC control system 26. The PLC control system 26 sends control instructions to the Y-axis servo motor 8, the Z-axis servo motor 4, the solder pool 14, the product angle block 7 and the tin scraping module 13 according to the control signal to realize various control actions and call programs. The core part of the equipment includes a support truss 1, and a plurality of key components are connected to the support truss 1. The Y-axis servo motor 8 is installed on the support truss 1, and the support truss 1 is provided with a Y-axis belt track 10. The Y-axis servo motor 8 is connected to the Y-axis roller 9, and the top of the Y-axis roller 9 is connected to the Y-axis belt track 10. The Y-axis belt track 10 is connected to the support slider 2, and the support slider 2 is connected to the Z module 3. The Z module 3 is connected to the Z-axis servo motor 4 through the coupling 5. The lower end of the Z module 3 is connected to the product clamp angle block 7, and the lower end of the product clamp angle block 7 is connected to the product clamp 6. The Z module 3 drives the product clamp 6 to move up and down through the product angle block 7, thereby realizing the movement of the product in the Z-axis direction (i.e., the up and down direction). This design allows the product to be tested to be accurately moved to each test area in the equipment. On the flat machine 12 of the equipment, key test areas such as the flux placement area 16, the ultrasonic cleaning area 15, the solder pool 14 and the Vision detection module 17 are arranged in sequence. These areas are carefully laid out and designed to ensure the smoothness and efficiency of the test process. Insulation plates are connected around the flux placement area and the ultrasonic cleaning area to ensure temperature control and safety during the test. The figure also shows the detailed structure of the tin scraping module 13. The tin scraping module 13 is arranged above the solder pool 14. The tin scraping module 13 includes a tin scraping motor 18 and a tin scraping plate 21. The tin scraping motor 18 is connected to the screw 19, and one end of the screw 19 is connected to the slider 20. The slider 20 is arranged on the first X-axis guide rail 23. The tin scraping module 13 drives the first screw 19 to rotate through the tin scraping motor 18, thereby driving the slider 20 to move along the first X-axis guide rail 23 to complete the tin scraping action. This design ensures that the oxide on the surface of the solder can be effectively scraped off, ensuring the accuracy of the test results.The figure also shows the detailed structure of the Vision detection module 17, which includes a vision moving motor 22 and a Vision detection lens 27. The vision moving motor 22 is connected to the Vision detection lens 27 through a second screw 29. The Vision detection lens 27 is set on the X-axis guide rail 23. The vision moving motor 22 drives the second screw 29 to rotate, and the rotation of the second screw 29 causes the Vision detection lens 27 to move along the X-axis guide rail 23. The Vision detection module drives the screw to rotate through the vision moving motor, thereby driving the detection lens to move along the X-axis guide rail. The Vision detection lens 27 sends the data to be detected to the PLC control system 26, and the PLC control system 26 determines the data to be detected and obtains the determination result.

[0031] This embodiment provides a multifunctional device and method for testing and determining the solderability of tin-plated integrated circuit IC devices, and the specific implementation steps are as follows: Step 1: Start the equipment, use the touch LCD display screen 11 to send a start solder pool 14 signal to the PLC control system 26, the PLC control system 26 controls the solder pool 14 to start and turn on the solder heating mode, the size of the solder pool 14 is 60mm*250mm, which can accommodate 5 test products at the same time, and there are 3 200W heating rods arranged inside the solder pool 14. The solder pool 14 is connected with insulation boards around it. The heating rods raise the temperature of the solder in the solder pool 14 to 245±5℃. At the same time, the insulation board can effectively isolate the heat loss. After the solder is heated to the target temperature of 245±5℃, it maintains a constant temperature; Step 2: Use the touch-screen LCD display screen 11 to send a signal to the PLC control system 26 to call the tin scraping module 13. The tin scraping module 13 is an automatic positioning scraper for scraping tin slag. The PLC control system 26 controls the start and stop of the tin scraping module 13 at a fixed time. The tin scraping module 13 includes a tin scraping motor 18 and a tin scraping blade 21. The PLC control system 26 controls the tin scraping blade 21 to scrape off excess oxides on the surface of the solder in the solder pool 14. The tin scraping motor 18 in the tin scraping module 13 drives the screw 19 connected thereto to rotate, so that the slider 20 on the screw 19 moves a distance X along the X-axis guide rail 23. The tin scraping blade 21 on the slider 20 completes the tin scraping action. The tin scraping action can be set by the PLC control system 26 and repeated execution; Step 3: Scrape the scraper 21 to remove the metal oxide on the surface of the tin in the solder pool 24 to keep the solder liquid level in a molten and impurity-free state. Step 4: Use the touch-screen LCD display screen 11 to send a signal to the PLC control system 26 to call the Z module 3. The PLC control system 26 controls the Z module 3 to start. The Z-axis servo motor 4 at the top of the Z module 3 drives the coupling 5 to drive the product clamp angle block 7 to move up and down, thereby realizing the up and down movement of the test product. The adjustment data of the test product is sent to the PLC control system 26 through the touch-screen LCD display screen 11. The PLC control system 26 adjusts the angle θ of the product clamp angle block 7 to 20-45° according to the received data. Then, the product clamp 6 simultaneously grabs 5 products to be tested and prepares for testing. Step 5: The PLC control system 26 controls the Y-axis servo motor 8 to drive the product clamp 6 to move a distance of Y1 along the Y-axis to reach above the flux placement area 16. The PLC control system 26 controls the Z-axis servo motor 4 to control the product clamp angle block 7 in the Z module 3 to move downward. The product clamp angle block 7 drives the product clamp 6 to clamp the test product and move downward a distance of Z1 to enter the flux placement area 16. After the test product stays in the flux for 10 to 20 seconds, the PLC control system 26 first controls the Z-axis servo motor 4 to drive the product clamp 6 to move upward, and then controls the Y-axis servo motor 8 to drive the product clamp 6 to move to the initial position of the Y-axis, so that the product clamp 6 carries the test product to restore to the initial state.

[0032] Step six: The PLC control system 26 controls the Y-axis servo motor 8 to drive the product clamp 6 to move a distance Y2 along the Y-axis to above the solder pool 14. Then, the PLC control system 26 controls the Z-axis servo motor 4 to drive the product clamp angle block 7 in the Z module 3 to move the product clamp 6 downward, so that the test product carried on the product clamp 6 is immersed in the solder pool 14 to a depth of about 1 mm, and the test product stays in the solder pool 14 for 4.5~5s, and the product solderability test is carried out.

[0033] Step seven: After step six is ​​completed, the PLC control system 26 controls the Z-axis servo motor 4 to drive the product clamp angle block 7 in the Z module 3 to drive the product clamp 6 to move upward. After returning to the top of the solder pool 14, the PLC control system 26 controls the Y-axis servo motor 8 to drive the product clamp 6 to continue to move along the Y-axis for a distance of Y3 to the top of the ultrasonic cleaning area 15. Then, the PLC control system 26 controls the Z-axis servo motor 4 to drive the product clamp angle block 7 in the Z module 3 to drive the product clamp 6 to move downward, so that the test product is immersed in the ultrasonic cleaning area 15 for cleaning. An ultrasonic transducer is installed inside the ultrasonic cleaning area 15 to clean the excess flux on the surface of the product after the solderability experiment of the test product is completed. After the test product stays in the ultrasonic cleaning area 15 for 30 to 60 seconds, the PLC control system 26 first controls the Z-axis servo motor 4 to drive the product clamp 6 to move upward, and then controls the Y-axis servo motor 8 to drive the product clamp 6 to move to the initial position of the Y-axis, so that the product clamp 6 carries the test product to restore to the initial state.

[0034] Step 8: The PLC control system 26 controls the Y-axis servo motor 8 to drive the product clamp 6 to move a distance of Y4 to the Vision detection module 17 for determination; the visual moving motor 22 drives the screw 19 to rotate, and the rotation of the screw 19 drives the Vision detection lens 27 to move a distance of X1 along the X-axis guide rail 23. During the movement, the Vision detection lens 27 collects visual information of the five products and sends the visual information data of the products to the PLC control system 26. The PLC control system 26 compares and confirms the received visual information data with the pre-set information. Finally, the Vision detection lens 27 combines with the PLC control system 26 to complete the weldability determination of the five products on the product clamp 6 in sequence. Through the pre-set program (such as the calculation of the qualified area, the area ratio of different types of products, etc.), the photos to be detected are taken, uploaded and compared through Vision, and then the data is output to determine whether it is qualified, or the area to be detected is grid-divided, and then the system calculates the total area, and then calculates the dewetting area, and finally compares. If the dewetting area / total area is less than 5%, it is determined to be qualified.

[0035] In the above steps, a two-way exhaust port 25 is set on the left side of the solder pool 14 to exhaust the harmful gas volatilized by the solder to the outside. The two-way exhaust port 25 needs to be opened in sequence before the equipment experiment. After the equipment is used, it can be closed at any time to prevent dust and harmful impurities from falling into the flux and solder to contaminate the reagents. Among them, protective covers are also provided on the flux placement area 16 and the ultrasonic cleaning area 15 to prevent the reagents from being contaminated and oxidized when the equipment is not working. In addition, a dust cover is set on the Vision visual inspection module to protect the lens from damage caused by dust or harmful gases, thereby extending the service life.

[0036] In addition, it should be understood that although this specification is described in accordance with the implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation modes that can be understood by those skilled in the art. The above content is only to illustrate the technical idea of ​​the present invention, and cannot be used to limit the protection scope of the present invention. Any changes made on the basis of the technical solution according to the technical idea proposed by the present invention shall fall within the protection scope of the claims of the present invention.

Claims

1. A multifunctional device for testing and judging the solderability of integrated circuit tin-plated IC devices, characterized in that: The invention comprises a product clamp (6) and a flat machine platform (12), wherein the product clamp (7) is located above the flat machine platform (12), the product clamp (6) clamps the test product, a Y-axis servo motor (8) and a Z-axis servo motor (4) are connected to the product clamp (6), and a flux placement area (16), a solder pool (14) and a vision detection module (17) are arranged on the flat machine platform (12).

2. The multifunctional device for testing and judging the solderability of tin-plated integrated circuit IC devices according to claim 1, characterized in that: The lower end of the Y-axis servo motor (8) is connected to a supporting truss (1), a Y-axis belt track (10) is arranged on the supporting truss (1), the Y-axis servo motor (8) is connected to a Y-axis roller (9), and the top end of the Y-axis roller (9) is connected to the Y-axis belt track (10).

3. The multifunctional device for testing and judging the solderability of tin-plated integrated circuit IC devices according to claim 2, characterized in that: The Y-axis belt track (10) is connected to a support slider (2), and the product clamping jaw (6) is driven by the support slider (2) to move on the Y-axis belt track (10).

4. The multifunctional device for testing and judging the solderability of tin-plated integrated circuit IC devices according to claim 3, characterized in that: The support slider (2) is connected to a Z module (3), the upper end of the Z module (3) is connected to a Z-axis servo motor (4) via a coupling (5), and the Z-axis servo motor (4) drives the coupling (5) to drive the Z module (3) to move up and down.

5. The multifunctional device for testing and judging the solderability of tin-plated integrated circuit IC devices according to claim 4, characterized in that: The lower end of the Z module (3) is connected to the product clamping jaw angle block (7), and the lower end of the product clamping jaw angle block (7) is connected to the product clamping jaw (6).

6. The multifunctional device for testing and judging the solderability of tin-plated integrated circuit IC devices according to claim 2, characterized in that: The outer side of the support truss (1) is provided with an acrylic protective cover (28), a touch-sensitive LCD display screen (11) is provided on the acrylic protective cover (30), the touch-sensitive LCD display screen (11) is connected to a PLC control system (26), all control instructions are sent to the PLC control system (26) via the touch-sensitive LCD display screen (11), and the PLC control system (26) receives the control instructions and controls the Y-axis servo motor (8) and the Z-axis servo motor (4).

7. The multifunctional device for testing and judging the solderability of tin-plated integrated circuit IC devices according to claim 1, characterized in that: The flat machine platform (12) is also provided with an ultrasonic cleaning area (15), and the solder pool (14), the flux placement area (16) and the ultrasonic cleaning area (15) are all surrounded by insulation panels, and dust covers are provided above them, wherein a two-way exhaust port (25) is provided on the left side of the solder pool (14).

8. The multifunctional device for testing and judging the solderability of tin-plated integrated circuit IC devices according to claim 7, characterized in that: A tin scraping module (13) is arranged above the solder pool (14), the tin scraping module (13) comprising a tin scraping motor (18) and a tin scraping plate (21), the tin scraping motor (18) is connected to a first screw rod (19), one end of the first screw rod (19) is connected to a slider (20), and the slider (20) is arranged on a first X-axis guide rail (23).

9. The multifunctional device for testing and judging the solderability of tin-plated IC devices according to claim 8, characterized in that: The vision detection module (17) on the flat machine (12) includes a vision detection lens (27) and a vision moving motor (22). The vision moving motor (22) is connected to the vision detection lens (27) via a second screw rod (29). The vision detection lens (27) is arranged on an X-axis guide rail (23). The vision moving motor (22) drives the second screw rod (29) to rotate. The rotation of the second screw rod (29) causes the vision detection lens (27) to move along the X-axis guide rail (23).

10. A method for testing and determining the solderability of an integrated circuit tin-plated IC device, based on a multifunctional device for testing and determining the solderability of an integrated circuit tin-plated IC device as described in any one of claims 1 to 9, characterized in that: The Y-axis servo motor (8) and the Z-axis servo motor (4) drive the product gripper (6) to sequentially pass through the solder pool (14) and the flux placement area (16) on the flat machine (12) to perform a solderability test. The Y-axis servo motor (8) and the Z-axis servo motor (4) move to the Vision detection module (17), and the Vision detection module (17) determines the solderability of the product after the test.

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