PCB copper surface repairing device and repairing process

Abstract

The application discloses a PCB copper surface repairing device and a repairing process, relates to the PCB repairing technical field, and solves the problem that when four elastic ropes are used to fix the PCB, the elastic ropes need to be repeatedly adjusted multiple times to ensure that the rotating plate on the elastic rope is perpendicular to the PCB, and the fixing steps of the PCB are complicated, comprising a water washing pool, a drain pipe which is in communication with the water washing pool and is fixedly installed outside the water washing pool, a material supporting mechanism which is used for containing the PCB to be repaired and is installed in the inside of the water washing pool, and a driving assembly which is used for driving the material supporting mechanism to move backward in the inside of the water washing pool, and the material supporting mechanism can automatically flexibly clamp the PCB, the fixing operation of the PCB is simple and convenient, and the repairing efficiency of the copper surface of the PCB is greatly improved.

Description

Technical Field

[0001] This invention relates to the field of PCB board repair technology, specifically to a PCB board copper surface repair device and repair process. Background Technology

[0002] The copper surface of a PCB board, also known as PCB copper foil, is a crucial component of the circuit. Damage or malfunction of the copper foil can affect the normal operation of the entire circuit. Therefore, PCB copper foil repair is an important step in ensuring the proper functioning of the circuit board. During the PCB copper foil repair process, the entire PCB board is washed with water. This is because the copper plating process involves a large amount of chemicals, and it is essential to ensure the board surface is thoroughly cleaned to avoid cross-contamination and poor localized treatment.

[0003] One existing PCB washing tank uses a trolley to move PCBs into the tank. The PCBs are secured to the underside of the trolley by four elastic ropes. The trolley's track is concave at the top of the tank, forming an arc shape, allowing the PCBs to enter at an angle. A rotating plate is wound around the elastic ropes, perpendicular to the PCBs. When one side of the rotating plate contacts the water surface, the water flow drives it to rotate, twisting the elastic ropes and changing their length, thus increasing the vibration of the PCBs in the liquid. However, in practice, because PCBs come in different models, the fixing points of the elastic ropes differ for each model. Therefore, multiple adjustments are required to ensure the rotating plate on the ropes is perpendicular to the PCB, making the fixing process cumbersome and significantly impacting the efficiency of PCB copper surface repair. Summary of the Invention

[0004] The purpose of this invention is to provide a PCB board copper surface repair device and repair process to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A PCB copper surface repair device includes a water washing tank with a drain pipe fixedly installed on its outer side and communicating with it; a material support mechanism for holding the PCB to be repaired, the material support mechanism being installed inside the water washing tank; two sets of drive components for driving the material support mechanism to move backward inside the water washing tank, the drive components being symmetrically distributed; and a bubbling mechanism for causing the liquid inside the water washing tank to bubble and surge, the bubbling mechanism being installed on the material support mechanism.

[0007] Preferably, the material support mechanism includes a perforated plate that can be raised and lowered inside the washing tank. The two ends of the perforated plate are thickened. A plurality of equal numbers of clamping rods 1 and 2 are installed on the upper end of the perforated plate. A flexible pad is provided on the side of the clamping rods 1 and 2 near the PCB board. The flexible pad can adapt to the uneven surface of the PCB board. The lower end of the clamping rod 1 is fixedly connected to a longitudinal support plate 1, and there are two sets of clamping rods 1 on the longitudinal support plate 1, which are symmetrically distributed. The lower end of the clamping rod 2 is fixedly connected to a longitudinal support plate 2, and there are also two sets of clamping rods 2 on the longitudinal support plate 2, which are symmetrically distributed.

[0008] Preferably, the lower end of the first longitudinal support plate is fixedly connected to two symmetrically distributed first transverse support plates, and multiple first longitudinal support plates are fixedly connected through the first transverse support plates. The lower end of the second longitudinal support plate is fixedly connected to a second transverse support plate, and multiple second longitudinal support plates are fixedly connected through the second transverse support plates. The two second transverse support plates are located between the two first transverse support plates. Multiple telescopic rods are fixedly installed on the left side of the leftmost first longitudinal support plate and the right side of the rightmost second longitudinal support plate, and the ends of the telescopic rods are fixedly connected to the perforated plate.

[0009] Preferably, a spring 1 is movably sleeved on the outer side of the telescopic rod, and the ends of multiple springs 1 respectively movably abut against the perforated plate, the longitudinal support plate 1, and the longitudinal support plate 2. A top rod 1 is fixedly embedded at the left end of the transverse support plate 1 and the right end of the transverse support plate 2. A ball bearing is movably embedded at the exposed end of the top rod 1. The ball bearing can reduce the frictional resistance between the top rod 1 and the washing pool. Trapezoidal blocks of the same number as the top rod 1 are fixedly installed on the left and right side walls of the washing pool, and the connection between the ball bearing and the trapezoidal block is a rolling contact. Anti-detachment pins are fixedly embedded on the front and rear sides of clamping rod 1 and clamping rod 2, and the anti-detachment pins can slide on the upper surface of the perforated plate.

[0010] Preferably, two sliding rods are fixedly installed inside the washing pool, and two threaded rods are rotatably installed inside the washing pool via sealed bearings. The two sliding rods and the two threaded rods are installed diagonally. A micro motor is fixedly connected to the lower end of each threaded rod. A slider is installed on the outer side of each sliding rod and the threaded rod. The slider has a rectangular cross-sectional shape and chamfered edges.

[0011] Preferably, two symmetrically distributed pins are fixedly embedded on the outer side of the slider, and the slider and the pins are slidably connected to the perforated plate through a limiting straight groove. The pins can prevent the slider from detaching from the perforated plate.

[0012] Preferably, a second spring is fixedly installed at the front end of the slider, and the front end of the second spring is fixedly connected to the perforated plate. The driving assembly includes a connecting seat fixedly installed at the lower end of the perforated plate. A second push rod is installed on the inner side of the connecting seat, and the second push rod is rotatably connected to the connecting seat through a connecting shaft. The connection between the second push rod and the perforated plate is a movable abutment, and the second push rod can rotate counterclockwise through the connecting shaft.

[0013] Preferably, two symmetrically distributed coil springs are fixedly sleeved on the outer side of the connecting shaft. The coil springs can drive the second push rod to rotate and reset. Multiple triangular blocks are fixedly installed on the inner front wall of the washing pool. The end of the second push rod near the triangular block is provided with a hemispherical part. The cross-sectional shape of the triangular block is a right triangle, and the second push rod slides in contact with the hypotenuse of the triangular block through the hemispherical part.

[0014] Preferably, the bubbling mechanism includes an air pump fixedly installed at the lower end of the washing tank. Two main conduits connected to the air pump are fixedly installed on the outside of the air pump. Multiple secondary conduits connected to the main conduits are fixedly installed on the outside of the main conduits. The multiple secondary conduits are fixedly installed on the upper end of the perforated plate by multiple positioning sleeves. The multiple secondary conduits are symmetrically distributed in pairs on both sides of the PCB board. Multiple air nozzles connected to the secondary conduits are fixedly installed on the outside of the secondary conduits. The air nozzles are installed at an angle. Guide rollers are rotatably installed on the upper ends of the front and rear side walls of the washing tank. The connection between the guide rollers and the main conduits is a rolling contact. The guide rollers can reduce the wear of the main conduits.

[0015] A repair process for a PCB copper surface repair device:

[0016] S1: During the material feeding stage, the personnel place the PCB board to be repaired between clamp rod 1 and clamp rod 2, which are far apart from each other. The threaded rod rotates and drives the mesh plate and the PCB board to be repaired to move down and immerse themselves in the liquid through the slider.

[0017] S2: During the clamping stage, as the perforated plate moves downward, the ball rolls along the slope of the trapezoidal stop. Multiple clamp rods 1 move to the right under the compression force of spring 1, and multiple clamp rods 2 move to the left under the compression force of spring 1. The two clamp rods 1 and two clamp rods 2 on the outside of the PCB board move closer to the PCB board and clamp the PCB board through the flexible pad layer.

[0018] S3: During the swinging phase, as the perforated plate drives the push rod 2 into the liquid, the hemispherical part of the push rod 2 slides along the inclined side of the triangular stop, driving the perforated plate and PCB board to move backward. When the push rod 2 disengages from the triangular stop, the perforated plate and PCB board will instantly move back under the compression force of the spring 2, so that the perforated plate and PCB board can swing back and forth inside the liquid.

[0019] S4: Bubbling stage. During the process of multiple air nozzles immersing the perforated board into the liquid, the air pump operates, and gas is sprayed out into the liquid through multiple air nozzles, causing the liquid on the left and right sides of the PCB board to bubble and surge dramatically, thus washing the PCB board.

[0020] Compared with the prior art, the beneficial effects of the present invention are:

[0021] 1. This invention, through the installation of a material support mechanism, allows the perforated plate in the material support mechanism to move upward to the trapezoidal stop. Driven by the trapezoidal stop, the adjacent clamping rods one and two will move away from each other, facilitating quick material placement by personnel. After the perforated plate moves downward away from the trapezoidal stop, the clamping rods one and two on both sides of the PCB board will move closer to each other, enabling automatic flexible clamping of the PCB board. This makes the fixing operation of the PCB board simple and convenient, greatly improving the repair efficiency of the copper surface of the PCB board.

[0022] 2. In this invention, by installing a driving assembly, during the downward movement of the top rod two in the driving assembly driven by the perforated plate, the top rod two drives the perforated plate and PCB board to move backward through the inclined side of the triangular stop. When the top rod two disengages from the triangular stop, the perforated plate and PCB board will instantly move back under the drive of the spring two. This is beneficial for the PCB board to swing back and forth during the process of being immersed in the liquid, which is beneficial for the PCB board to fully contact the liquid and facilitates the liquid to flush the gaps of the PCB board.

[0023] 3. This invention, through the installation of a bubbling mechanism, involves multiple auxiliary conduits within the bubbling mechanism that move up and down with the perforated board. During this movement, multiple nozzles on the auxiliary conduits blow gas from both sides of the PCB board. This facilitates the bubbling and surging of the liquid after the PCB board is immersed in it, accelerating the flow of liquid on both sides of the PCB board and promoting the removal and dispersion of dirt. Furthermore, after the PCB board is removed from the liquid, the accelerated gas flow on both sides of the PCB board allows for its drying. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0025] Figure 2 This is a schematic diagram of the front side section of the present invention;

[0026] Figure 3 This is a cross-sectional view of the right side of the present invention;

[0027] Figure 4 This is a schematic diagram showing the separation of the bubbling mechanism and the material support mechanism of the present invention;

[0028] Figure 5 This is a schematic diagram of the bottom side of the material support mechanism of the present invention;

[0029] Figure 6For the present invention Figure 4 A diagram illustrating the splitting at point A in the middle;

[0030] Figure 7 For the present invention Figure 5 Cross-sectional view of point B in the middle;

[0031] Figure 8 This is a schematic diagram of the removal of the perforated plate in the material support mechanism of the present invention.

[0032] In the diagram: 1. Washing pool; 2. Drain pipe; 3. Mesh plate; 4. Clamping rod one; 5. Clamping rod two; 6. Longitudinal support plate one; 7. Longitudinal support plate two; 8. Transverse support plate one; 9. Transverse support plate two; 10. Telescopic rod; 11. Spring one; 12. Top rod one; 13. Ball bearing; 14. Trapezoidal stop; 15. Anti-detachment pin; 16. Sliding rod; 17. Threaded rod; 18. Sliding block; 19. Ball bearing; 20. Spring two; 21. Connecting seat; 22. Top rod two; 23. Connecting shaft; 24. Coil spring; 25. Air pump; 26. Main guide pipe; 27. Secondary guide pipe; 28. Air nozzle; 29. ​​Positioning sleeve; 30. Guide roller; 31. Triangular stop. Detailed Implementation

[0033] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0034] Example 1: Please refer to Figure 1 , Figure 4 , Figure 7 , Figure 8 The diagram shows a PCB copper surface repair device, including a water washing tank 1, a drain pipe 2 connected to the outside of the water washing tank 1, a material support mechanism for holding the PCB to be repaired, the material support mechanism being installed inside the water washing tank 1; a drive assembly for driving the material support mechanism to move backward inside the water washing tank 1, the drive assembly being two sets and symmetrically distributed; and a bubbling mechanism for causing the liquid inside the water washing tank 1 to bubble and surge, the bubbling mechanism being installed on the material support mechanism.

[0035] The material support mechanism includes a perforated plate 3 that can be raised and lowered inside the washing tank 1. The two ends of the perforated plate 3 are thickened. Multiple equal numbers of clamping rods 1 4 and clamping rods 2 5 are installed on the upper end of the perforated plate 3. A flexible pad is provided on the side of clamping rods 1 4 and clamping rods 2 5 near the PCB board. The flexible pad can adapt to the uneven surface of the PCB board. The lower end of clamping rod 1 4 is fixedly connected to a longitudinal support plate 1 6, and there are two sets of clamping rods 1 4 on the longitudinal support plate 1 6, which are symmetrically distributed. The lower end of clamping rod 2 5 is fixedly connected to a longitudinal support plate 2 7, and there are also two sets of clamping rods 2 5 on the longitudinal support plate 2 7, which are symmetrically distributed.

[0036] The lower end of the longitudinal support plate 16 is fixedly connected to two symmetrically distributed transverse support plates 18, and multiple longitudinal support plates 16 are fixedly connected through the transverse support plates 18. The lower end of the longitudinal support plate 27 is fixedly connected to a transverse support plate 29, and multiple longitudinal support plates 27 are fixedly connected through the transverse support plates 29. The two transverse support plates 29 are located between the two transverse support plates 18. Multiple telescopic rods 10 are fixedly installed on the left side of the leftmost longitudinal support plate 16 and the right side of the rightmost longitudinal support plate 27, and the ends of the telescopic rods 10 are fixedly connected to the mesh plate 3.

[0037] Spring 11 is movably sleeved on the outer side of telescopic rod 10, and the ends of multiple springs 11 are respectively in contact with perforated plate 3, longitudinal support plate 6 and longitudinal support plate 7. Top rod 12 is fixedly embedded on the left end of transverse support plate 8 and the right end of transverse support plate 9. Roller ball 13 is movably embedded on the exposed end of top rod 12. Roller ball 13 can reduce the frictional resistance between top rod 12 and washing pool 1. Trapezoidal blocks 14 are fixedly installed on the left and right side walls of washing pool 1 in the same number as top rod 12. The connection between roller ball 13 and trapezoidal block 14 is rolling contact. Anti-detachment pins 15 are fixedly embedded on the front and rear sides of clamp rod 4 and clamp rod 5. Anti-detachment pins 15 can slide on the upper surface of perforated plate 3.

[0038] Two sliding rods 16 are fixedly installed inside the washing pool 1. Two threaded rods 17 are rotatably installed inside the washing pool 1 through sealed bearings. The two sliding rods 16 and the two threaded rods 17 are installed diagonally. A micro motor is fixedly connected to the lower end of the threaded rods 17. A slider 18 is installed on the outer side of both the sliding rods 16 and the threaded rods 17. The slider 18 has a rectangular cross-sectional shape and the edges are chamfered.

[0039] Two symmetrically distributed pins 19 are fixedly embedded on the outer side of the slider 18, and the slider 18 and the pins 19 are slidably connected to the mesh plate 3 through the limiting straight groove. The pins 19 can prevent the slider 18 from detaching from the mesh plate 3.

[0040] A repair process for a PCB copper surface repair device based on any one of claims 1-9:

[0041] S1: During the material feeding stage, the personnel place the PCB board to be repaired between the clamping rod 4 and clamping rod 5, which are far apart from each other. The threaded rod 17 rotates and drives the mesh plate 3 and the PCB board to be repaired to move down and immerse themselves in the liquid through the slider 18.

[0042] S2: During the clamping stage, as the perforated plate 3 moves downward, the ball bearing 13 rolls along the slope of the trapezoidal stop 14, and multiple clamping rods 1 4 move to the right under the compression force of spring 1 11, while multiple clamping rods 2 5 move to the left under the compression force of spring 1 11. The two clamping rods 1 4 and the two clamping rods 2 5 on the outside of the PCB board move closer to the PCB board and clamp the PCB board through the flexible pad layer.

[0043] S3: During the swinging phase, as the perforated plate 3 drives the push rod 22 into the liquid, the hemispherical part of the push rod 22 slides along the inclined side of the triangular stop 31, driving the perforated plate 3 and the PCB board to move backward. When the push rod 22 disengages from the triangular stop 31, the perforated plate 3 and the PCB board will instantly move back under the compression force of the spring 20, so that the perforated plate 3 and the PCB board can swing back and forth inside the liquid.

[0044] S4: Bubbling stage. During the process of multiple air nozzles 28 being immersed in the liquid along with the perforated plate 3, the air pump 25 is running. Gas is sprayed out into the liquid through multiple air nozzles 28, causing the liquid on the left and right sides of the PCB board to bubble and surge dramatically, thus washing the PCB board.

[0045] Working principle: The operator places the PCB board between the clamping rods 4 and 5, which are far apart from each other. Then, the threaded rod 17 rotates, driving the mesh plate 3 and the PCB board to move down inside the washing tank 1 through the slider 18. As the top rod 12 moves down with the mesh plate 3, it moves closer to the side wall of the washing tank 1 along the inclined side of the trapezoidal stop 14 under the compression force of the spring 11. During this process, the clamping rods 4 and 5 on both sides of the PCB board move closer to the PCB board until the PCB board is clamped and fixed. This makes the fixing operation of the PCB board simpler and greatly improves the repair efficiency of the copper surface of the PCB board.

[0046] When the threaded rod 17 rotates in the opposite direction, the perforated plate 3 will move upward and reset inside the washing tank 1, and the clamping rods 4 and 5 on both sides of the PCB board will move away from each other, making it easier to pick up and put down the PCB board.

[0047] Example 2: Please refer to Figure 3 , Figure 5 , Figure 6This embodiment further explains Example 1. A second spring 20 is fixedly installed at the front end of the slider 18, and the front end of the second spring 20 is fixedly connected to the perforated plate 3. The driving component includes a connecting seat 21 fixedly installed at the lower end of the perforated plate 3. A second push rod 22 is installed on the inner side of the connecting seat 21, and the second push rod 22 is rotatably connected to the connecting seat 21 through the connecting shaft 23. The connection between the second push rod 22 and the perforated plate 3 is a movable abutment. The second push rod 22 can rotate counterclockwise through the connecting shaft 23.

[0048] Two symmetrically distributed coil springs 24 are fixedly sleeved on the outer side of the connecting shaft 23. The coil springs 24 can drive the push rod 22 to rotate and reset. Multiple triangular blocks 31 distributed at equal intervals are fixedly installed on the inner wall of the front side of the washing pool 1. The end of the push rod 22 near the triangular block 31 is provided with a hemispherical part. The cross-sectional shape of the triangular block 31 is a right triangle, and the push rod 22 slides in contact with the hypotenuse of the triangular block 31 through the hemispherical part.

[0049] In this embodiment: During the process of the perforated plate 3 driving the top rod 22 to move downward, the hemispherical part of the top rod 22 will contact the inclined side of the triangular stop 31. Due to the obstruction of the perforated plate 3, the top rod 22 cannot rotate upward, so the triangular stop 31 will drive the perforated plate 3 and move backward through the top rod 22. When the top rod 22 moves downward and disengages from the triangular stop 31, the perforated plate 3 and the PCB board will move back to their original positions under the compression force of the spring 20. This process is repeated until the perforated plate 3 moves to the bottom of the washing tank 1. This is beneficial for the PCB board to swing back and forth in the liquid during the process of immersing the PCB board in the liquid, which is beneficial for the PCB board to fully contact the liquid and facilitates the liquid to flush the gaps of the PCB board.

[0050] When the threaded rod 17 rotates in the opposite direction to drive the perforated plate 3 and the PCB board to move upward, the second push rod 22 will be blocked by the right-angle side of the triangular stop 31 and rotate downward. After the second push rod 22 disengages from the multiple triangular stops 31, the second push rod 22 will be in a horizontal state under the drive of the coil spring 24, thereby ensuring that the perforated plate 3 can move upward and reset inside the washing pool 1.

[0051] Example 3: Please refer to Figure 2 , Figure 4This embodiment further explains Example 1. The bubbling mechanism includes an air pump 25 fixedly installed at the lower end of the washing tank 1. Two main conduits 26 connected to the air pump 25 are fixedly installed on the outside of the air pump 25. Multiple auxiliary conduits 27 connected to the air pump 26 are fixedly installed on the outside of the main conduits 26. The multiple auxiliary conduits 27 are fixedly installed on the upper end of the perforated plate 3 through multiple positioning sleeves 29. The multiple auxiliary conduits 27 are symmetrically distributed in pairs on both sides of the PCB board. Multiple air nozzles 28 connected to the auxiliary conduits 27 are fixedly installed on the outside of the auxiliary conduits 27. The air nozzles 28 are installed at an angle. Guide rollers 30 are rotatably installed on the upper ends of the front and rear side walls of the washing tank 1. The connection between the guide rollers 30 and the main conduits 26 is a rolling contact. The guide rollers 30 can reduce the wear of the main conduits 26.

[0052] In this embodiment: as clamp rod 4 and clamp rod 5 approach the PCB board, the secondary conduits 27 on both sides of the PCB board also approach the PCB board. As multiple secondary conduits 27 are immersed in the liquid along with the mesh plate 3, the air pump 25 operates, and multiple air nozzles 28 blow gas on both sides of the PCB board. This helps to cause the liquid to bubble and surge after the PCB board is immersed in the liquid, which can accelerate the flow of liquid on both sides of the PCB board and promote the peeling and dispersion of dirt on the PCB board. After the PCB board is washed, the threaded rod 17 rotates in the opposite direction to drive the mesh plate 3 to move to the upper side of the liquid surface in the washing tank 1. At this time, multiple air nozzles 28 blow gas on both sides of the PCB board, which will accelerate the gas flow on both sides of the PCB board and dry the PCB board.

[0053] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0054] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A PCB copper surface repair device, comprising a water washing pool, a drain pipe is fixedly installed on the outer side of the water washing pool and communicates with the water washing pool, characterized in that, Also include: The material supporting mechanism for containing the PCB to be repaired, the material supporting mechanism is installed in the inside of the washing pool; Driving assembly, for driving the material supporting mechanism to move back in the inside of the washing pool, the number of driving assembly is two groups, and is symmetrically distributed; Bubble mechanism, for making the liquid in the inside of the washing pool bubble, bubble mechanism is installed on the material supporting mechanism; The material supporting mechanism includes the mesh plate that can lift in the inside of the washing pool, the both ends of mesh plate are thickened, the upper end of mesh plate is installed with multiple equal number of clamping rod one and clamping rod two, the side of clamping rod one and clamping rod two close to PCB is provided with flexible pad, the lower end of clamping rod one is fixedly connected with longitudinal support plate one, and the number of clamping rod one on longitudinal support plate one is two groups, and is symmetrically distributed, the lower end of clamping rod two is fixedly connected with longitudinal support plate two, and the number of clamping rod two on longitudinal support plate two is also two groups, and is symmetrically distributed; The lower end of longitudinal support plate one is fixedly connected with two symmetrically distributed horizontal support plate one, and multiple longitudinal support plate one is fixedly connected through horizontal support plate one, the lower end of longitudinal support plate two is fixedly connected with horizontal support plate two, and multiple longitudinal support plate two is fixedly connected through horizontal support plate two, the left side of the leftmost one longitudinal support plate one and the right side of the rightmost one longitudinal support plate two are fixedly installed with multiple equidistantly distributed telescopic rods, and the tail end of telescopic rod is fixedly connected with mesh plate. The outer side of telescopic rod is movably sleeved with spring one, and the ends of multiple spring one are movably abutted with mesh plate, longitudinal support plate one and longitudinal support plate two, the left end of horizontal support plate one and the right end of horizontal support plate two are fixedly embedded with top rod one, the outer exposed end of top rod one is movably embedded with ball, the left and right side walls of washing pool are fixedly installed with trapezoidal block equal in number to top rod one, and the connection mode between ball and trapezoidal block is rolling contact, the front and back sides of clamping rod one and clamping rod two are fixedly embedded with anti-drop pin, and the anti-drop pin can slide on the upper end surface of mesh plate. The inside of washing pool is fixedly installed with two slide rods, the inside of washing pool is rotatably installed with two threaded rods through sealing bearing, and two slide rods and two threaded rods are diagonally installed, the lower end of threaded rod is fixedly connected with micro motor, and the outer side of slide rod and threaded rod is cooperatively installed with sliding block. The front end of sliding block is fixedly installed with spring two, and the front end of spring two is fixedly connected with mesh plate, driving assembly includes connecting seat fixedly installed on the lower end of mesh plate, the inner side of connecting seat is installed with top rod two, and top rod two is rotatably connected with connecting seat through connecting shaft, and the connection mode between top rod two and mesh plate is movable abutment. The outer side of connecting shaft is fixedly sleeved with two symmetrically distributed coil springs, the front inner wall of washing pool is fixedly installed with multiple equidistantly distributed triangular blocks, one end of top rod two close to triangular block is provided with hemispherical part, the cross-sectional shape of triangular block is right triangle, and top rod two is in sliding contact with the hypotenuse of triangular block through hemispherical part.

2. The PCB copper surface repairing device according to claim 1, characterized in that: The outer side of sliding block is fixedly embedded with two symmetrically distributed pin balls, and sliding block and pin ball are slidably connected with mesh plate through limiting straight slot.

3. The PCB copper surface repairing device according to claim 2, characterized in that: The bubbling mechanism comprises a gas pump fixedly installed at the lower end of the water washing tank, two main guide pipes fixedly installed outside the gas pump and in communication with the gas pump, a plurality of auxiliary guide pipes fixedly installed outside the main guide pipes and in communication with the main guide pipes, a plurality of positioning sleeves, a plurality of gas nozzles fixedly installed outside the auxiliary guide pipes and in communication with the auxiliary guide pipes, and a plurality of guide rollers rotatably installed at the upper ends of the front and rear side walls of the water washing tank.

4. The repair process of the PCB copper surface repair device according to claim 3, characterized in that: S1: the feeding stage, the personnel place the PCB to be repaired between the clamping rod one and the clamping rod two, and the threaded rod rotates to drive the mesh plate and the PCB to be repaired to move downward and immerse in the liquid; S2: the clamping stage, during the downward movement of the mesh plate, the balls roll along the slope of the trapezoidal block, the plurality of clamping rods one move right under the compression of the spring one, the plurality of clamping rods two move left under the compression of the spring one, the two clamping rods one and the two clamping rods two on the outer side of the PCB move close to the PCB, and the PCB is clamped through the flexible pad; S3: the swinging stage, during the process that the mesh plate drives the top rod two to enter the liquid, the hemispherical part of the top rod two slides along the inclined edge of the triangular block, drives the mesh plate and the PCB to move backward, when the top rod two is separated from the triangular block, the mesh plate and the PCB will move back under the compression of the spring two, so that the mesh plate and the PCB can swing back and forth in the liquid; S4: the bubbling stage, during the process that the plurality of gas nozzles immerse in the liquid with the mesh plate, the gas pump operates, the gas is sprayed in the liquid through the plurality of gas nozzles, the liquid on the left and right sides of the PCB is greatly bubbled and surges, and the PCB is washed.

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