PCBA board bonding pad repairing mechanism

Abstract

The utility model relates to a PCBA board bonding pad repairing mechanism in the technical field of PCBA board repairing, which comprises a mounting bottom plate, fixed mounting plates are symmetrically arranged at the top of the mounting bottom plate, electric telescopic rods are symmetrically arranged on the outer sides of the fixed mounting plates, the output ends of the electric telescopic rods are fixedly connected with connecting clamping arms, and the connecting clamping arms are fixedly connected with the fixed mounting plates. A fixing frame is fixedly connected to one side of the top of the mounting bottom plate, a fixing guide rail is fixedly connected to the top of the inner side of the fixing frame, and the initial position of a bonding pad on the surface of a PCBA board can be rapidly determined through a movable mounting sleeve block, a telescopic adjusting mechanism, a connecting positioning mechanism and an auxiliary positioning mechanism; and the position of the connection positioning mechanism is recorded through the auxiliary positioning mechanism and the telescopic adjusting mechanism, so that after the bonding pad is repaired, the connection positioning mechanism can be quickly moved to the determined position, the bonding pad and the PCBA board are connected, and welding treatment is carried out again through the heating device.

Description

Technical Field

[0001] The utility model relates to the technical field of PCBA board repair, in particular to a PCBA board pad repair mechanism. Background Technique

[0002] PCBA is the whole process of PCB bare board through SMT component mounting and then through DIP plug-in, commonly known as circuit board. PCBA is the most important component in all electronic product components, similar to the neural network of the human body. The brain of the electronic product: the CPU is installed on the PCBA. Generally, the lifespan, operating speed, reliability and stability of consumer electronic products are most directly related to the PCBA. Therefore, the quality of the PCBA is also the most direct determinant of the overall quality of the electronic product. When producing and processing the PCBA board, if the pad falls off, a repair mechanism is needed to repair the connection between the pad and the PCBA board so that the whole can operate stably.

[0003] When the existing repair mechanism is in use, first, the operator manually reprocesses the solder joints between the pad and the PCBA board with special tools, and then places the pad on the welding position of the PCBA board and heats it through the repair mechanism for re-welding. However, during this process, the operator usually aligns the position between the pad and the PCBA board manually, making the right-angle marks on the surface of the pad and the PCBA board align with each other, resulting in poor accuracy. For this reason, we propose a PCBA board pad repair mechanism. Summary of the Utility Model

[0004] Aiming at the above problems, the utility model provides a PCBA board pad repair mechanism, which can solve the problems existing in the above background technique.

[0005] The technical solution of the utility model is as follows:

[0006] A PCBA board pad repair mechanism includes a mounting base plate. Symmetrically arranged fixed mounting plates are provided on the top of the mounting base plate. Electric telescopic rods are symmetrically arranged on the outer sides of the fixed mounting plates. The output ends of the electric telescopic rods are fixedly connected with connecting clamping arms. A fixed frame is fixedly connected to one side of the top of the mounting base plate. A fixed guide rail is fixedly connected to the inner top of the fixed frame. A movable mounting sleeve block is movably connected to the inner side of the fixed guide rail. A telescopic adjustment mechanism is fixedly connected to the inside of the movable mounting sleeve block. The acting end of the telescopic adjustment mechanism is fixedly connected with a connection positioning mechanism. An auxiliary positioning mechanism is movably connected to the inside of the fixed guide rail. Connecting handles are symmetrically arranged on the top of the mounting base plate. Mounting feet are symmetrically arranged on the outer side of the mounting base plate.

[0007] In a further technical solution, the telescopic adjustment mechanism includes a connecting sleeve rod located inside the movable mounting sleeve block, a fixed through groove is opened on the top of the connecting sleeve rod, a movable connecting rod is movably connected inside the connecting sleeve rod, one end of the movable connecting rod is fixedly connected to a movable base, one end of the movable base is threadedly connected to a first threaded rod, and the bottom end of the first threaded rod is fixedly connected to a first friction disk.

[0008] In a further technical solution, the bottom end of the movable base and the inner side of the fixed through groove are slidably fitted with each other, and the outer side of the surface of the movable installation block and the inner side of the fixed guide rail are fitted with each other.

[0009] In a further technical solution, the connecting and positioning mechanism includes a fixed guide block fixedly connected to one end of a movable connecting rod, a fixed guide groove is provided on the surface of the fixed guide block, a movable positioning block is movably connected to the inner side of the fixed guide block, and the rear surface of the movable positioning block is fixedly connected to a connecting toggle block via a connecting rod located on the inner side of the fixed guide groove.

[0010] In a further technical solution, the outer side of the surface of the movable positioning block and the inner side of the fixed guide block are slidably fitted with each other.

[0011] In a further technical solution, the auxiliary positioning mechanism includes a movable mounting block, a threaded sleeve is fixedly connected to the outer side of the top end of the movable mounting block, a second threaded rod is movably connected to the inner side of the threaded sleeve and the movable mounting block through a threaded connection, and a second friction disk is fixedly connected to one end of the second threaded rod.

[0012] In a further technical solution, the outer side of the surface of the movable mounting block is in contact with the inner side of the fixed guide rail, and one side of the second friction disk is in contact with the surface of the fixed frame.

[0013] The beneficial effects of the utility model are:

[0014] 1. Through the provided mobile installation block, telescopic adjustment mechanism, connection positioning mechanism and auxiliary positioning mechanism, the initial position of the pad on the surface of the PCBA board can be quickly determined, and the position of the connection positioning mechanism can be recorded through the auxiliary positioning mechanism and the telescopic adjustment mechanism, so that after the pad is repaired, the connection positioning mechanism can be quickly moved to the determined position, the pad is connected to the PCBA board, and the heating device is used to re-weld;

[0015] 2. The overall structure of the utility model is simple, and it is convenient and quick in the actual operation process. In the process of repairing the PCBA board and the pad, the position can be accurately determined, thereby improving the repair accuracy between the PCBA board and the pad, thereby improving the repair quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall structure of a PCBA pad repair mechanism according to an embodiment of the utility model;

[0017] Figure 2 This is a schematic diagram of the overall side view of a PCBA pad repair mechanism according to an embodiment of the utility model;

[0018] Figure 3 This is a schematic diagram of the telescopic adjustment mechanism structure of a PCBA board pad repair mechanism according to an embodiment of the utility model;

[0019] Figure 4 This is a schematic diagram of the structure of a connection positioning mechanism of a PCBA pad repair mechanism according to an embodiment of the utility model;

[0020] Figure 5 The utility model is a schematic diagram of the auxiliary positioning mechanism structure of a PCBA board pad repair mechanism according to an embodiment of the present invention.

[0021] Description of reference numerals:

[0022] 1. Install the base plate; 2. Fix the mounting plate; 3. Electric telescopic rod; 4. Connect the clamp arm; 5. Fix the frame; 6. Fix the guide rail; 7. Move the mounting sleeve; 8. Telescopic adjustment mechanism; 9. Connect the positioning mechanism; 10. Auxiliary positioning mechanism; 11. Install the support foot; 12. Connect the handle; 13. Connect the sleeve rod; 14. Fix the through groove; 15. Active connecting rod; 16. Move the base; 17. The first threaded rod; 18. The first friction disc; 19. Fix the guide block; 20. Fix the guide groove; 21. Active positioning block; 22. Connect the toggle block; 23. Move the mounting block; 24. Threaded sleeve; 25. The second threaded rod; 26. The second friction disc. DETAILED DESCRIPTION

[0023] The embodiments of the present utility model will be further described below in conjunction with the accompanying drawings.

[0024] Example:

[0025] like Figures 1 - 5As shown in the figure, a PCBA board pad repair mechanism includes a mounting base plate 1. On the top of the mounting base plate 1, fixed mounting plates 2 are symmetrically arranged. On the outside of the fixed mounting plates 2, electric telescopic rods 3 are symmetrically arranged. The output ends of the electric telescopic rods 3 are fixedly connected with connecting clamping arms 4. On one side of the top of the mounting base plate 1, a fixed frame 5 is fixedly connected. On the inner top of the fixed frame 5, a fixed guide rail 6 is fixedly connected. Inside the fixed guide rail 6, a movable mounting sleeve block 7 is movably connected. Inside the movable mounting sleeve block 7, a telescopic adjustment mechanism 8 is fixedly connected. The acting end of the telescopic adjustment mechanism 8 is fixedly connected with a connection positioning mechanism 9. Inside the fixed guide rail 6, an auxiliary positioning mechanism 10 is movably connected. On the top of the mounting base plate 1, connection handles 12 are symmetrically arranged. On the outside of the mounting base plate 1, mounting feet 11 are symmetrically arranged.

[0026] The working principle of the above technical solution is as follows:

[0027] During the use process, first place the PCBA board in the middle of the top of the mounting base plate 1. Through the pushing of the electric telescopic rod 3 on the connecting clamping arm 4, the PCBA board is clamped and fixed. Then move the movable mounting sleeve block 7 and the auxiliary positioning mechanism 10, and adjust the telescopic adjustment mechanism 8 and the connection positioning mechanism 9 so that the bottom end of the connection positioning mechanism 9 can fit with the corner of the pad. At this time, make the auxiliary positioning mechanism 10 fit with the movable mounting sleeve block 7. Then adjust and fix the auxiliary positioning mechanism 10, and at the same time fix the state of the telescopic adjustment mechanism 8. Then reset the connection positioning mechanism 9, move the movable mounting sleeve block 7, drive the telescopic adjustment mechanism 8 to reset. Then heat the area between the PCBA board and the pad through a heating device to make them separate. After the solder joints are repaired, adjust the connection positioning mechanism 9 again so that the bottom end of the connection positioning mechanism 9 will not push the electronic components on the surface of the PCBA board during the moving process. At the same time, the movable mounting sleeve block 7 can move to fit with the auxiliary positioning mechanism 10. At this time, lower the bottom of the connection positioning mechanism 9 so that the edge of the pad fits with the bottom edge of the connection positioning mechanism 9, which is the initial position. Heat again to re-weld the PCBA board and the pad, so as to perform the repair quickly and accurately, and the operation is convenient.

[0028] In another embodiment, as Figure 3 shown, the telescopic adjustment mechanism 8 includes a connecting sleeve rod 13 located inside the movable mounting sleeve block 7. A fixed through groove 14 is opened at the top of the connecting sleeve rod 13. Inside the connecting sleeve rod 13, a movable connecting rod 15 is movably connected. One end of the movable connecting rod 15 is fixedly connected with a movable base 16. One end of the movable base 16 is threadedly connected with a first threaded rod 17. The bottom end of the first threaded rod 17 is fixedly connected with a first friction disc 18.

[0029] It is convenient to drive the movable connecting rod 15 to move the connecting positioning mechanism 9, so that the movable connecting rod 15 can move from the inside to the outside of the connecting sleeve rod 13, and drive the movable base 16, the first threaded rod 17 and the first friction plate 18 to move. When it moves to the required adjustment position, the first threaded rod 17 is rotated so that the first threaded rod 17 pushes the first friction plate 18 and squeezes it with the top of the connecting sleeve rod 13, thereby connecting and fixing the connecting sleeve rod 13 and the movable connecting rod 15.

[0030] In another embodiment, if Figure 3 As shown, the bottom end of the movable base 16 and the inner side of the fixed through groove 14 are slidably fitted with each other, and the outer side of the surface of the movable installation sleeve 7 and the inner side of the fixed guide rail 6 are fitted with each other.

[0031] The movable base 16 can stably move inside the fixed through groove 14, and the movable mounting sleeve 7 can stably move inside the fixed guide rail 6, which is easy to operate.

[0032] In another embodiment, if Figure 4 As shown, the connecting and positioning mechanism 9 includes a fixed guide block 19 fixedly connected to one end of the movable connecting rod 15, a fixed guide groove 20 is provided on the surface of the fixed guide block 19, a movable positioning block 21 is movably connected to the inner side of the fixed guide block 19, and a connecting toggle block 22 is fixedly connected to the rear surface of the movable positioning block 21 via a connecting rod located on the inner side of the fixed guide groove 20.

[0033] It is convenient to move the connecting toggle block 22 upwards, thereby driving the movable positioning block 21 to move upwards, thereby quickly adjusting the position of the movable positioning block 21.

[0034] In another embodiment, if Figure 4 As shown, the outer surface of the movable positioning block 21 and the inner surface of the fixed guide block 19 are slidably fitted to each other.

[0035] The movable positioning block 21 can stably move inside the fixed guide block 19, which is convenient for operation.

[0036] In another embodiment, if Figure 5 As shown, the auxiliary positioning mechanism 10 includes a movable mounting block 23, a threaded sleeve 24 is fixedly connected to the outer side of the top end of the movable mounting block 23, a second threaded rod 25 is movably connected to the inner side of the threaded sleeve 24 and the movable mounting block 23 via a thread, and a second friction disk 26 is fixedly connected to one end of the second threaded rod 25.

[0037] When moving the movable mounting block 23 to the position to be adjusted, rotate the second threaded rod 25 so that the second threaded rod 25 can be pushed inside the threaded sleeve 24 and the movable mounting block 23 to push the second friction disc 26, and squeeze it against the fixed frame 5, so as to fix the position of the movable mounting block 23, which is convenient to operate.

[0038] In another embodiment, as Figure 5 shown, the outer side of the surface of the movable mounting block 23 is in mutual fit with the inner side of the fixed guide rail 6, and one side of the second friction disc 26 is in mutual fit with the surface of the fixed frame 5.

[0039] It is convenient for the movable mounting block 23 to move stably inside the fixed guide rail 6. At the same time, the second friction disc 26 and the fixed frame 5 can be squeezed to be connected and fixed, which is convenient to operate.

[0040] Working principle of the utility model: During use, first place the PCBA board in the middle of the top of the mounting base plate 1. Through the push of the electric telescopic rod 3 on the connecting clamping arm 4, the PCBA board is clamped and fixed. Then move the movable mounting block 23 and the movable mounting sleeve block 7, and move the connecting toggle block 22 upward, so that the movable positioning block 21 can move upward, avoiding the collision of other electronic components on the surface of the PCBA board when the bottom of the movable positioning block 21 moves. When the movable positioning block 21 is flush with the pad, then drive the connecting positioning mechanism 9 by the movable connecting rod 15, so that the movable connecting rod 15 can move from the inside of the connecting sleeve rod 13 to the outside, and drive the movable base 16, the first threaded rod 17 and the first friction disc 18 to move. When moving to the position to be adjusted, and move the movable positioning block 21 downward, so that the movable positioning block 21 fits with the corner of the pad. At this time, the position is determined. Rotate the first threaded rod 17, so that the first threaded rod 17 pushes the first friction disc 18 and squeezes it against the top of the connecting sleeve rod 13, thereby connecting and fixing the connecting sleeve rod 13 and the movable connecting rod 15. Then move the movable mounting block 23 to fit with the movable mounting sleeve block 7, and rotate the second threaded rod 25, so that the second threaded rod 25 can push inside the threaded sleeve 24 and the movable mounting block 23, push the second friction disc 26, and squeeze it against the fixed frame 5, thereby being able to fix the position of the movable mounting block 23. Then lift the movable positioning block 21 upward, reset the movable mounting sleeve block 7, and the fixed guide groove 20 and the movable positioning block 21 disengage from the top of the PCBA board. At this time, heat treatment is performed on the PCBA board and the pad through a heating device, so that the PCBA board and the pad are separated. After the solder joints between the PCBA board and the pad are repaired, move the movable mounting sleeve block 7. During this process, the movable positioning block 21 is in a suspended state. When the movable mounting sleeve block 7 fits with the movable mounting block 23, move the connecting toggle block 22 downward, so that the movable positioning block 21 fits with the PCBA board. Then fit the corner of the pad with the inside of the movable positioning block 21 and fit it with the PCBA board. Heat again through the heating device to perform re-welding treatment on the PCBA board and the pad, thereby performing precise repair, and the operation is convenient.

[0041] The above embodiments only express the specific implementation manners of the utility model, and the description thereof is relatively specific and detailed, but it should not be construed as a limitation on the patent scope of the utility model. It should be noted that for those of ordinary skill in the art, without departing from the concept of the utility model, several deformations and improvements can still be made, and these all belong to the protection scope of the utility model.

Claims

1. A PCBA pad repair mechanism, comprising a mounting base plate (1), characterized in that: A fixed mounting plate (2) is symmetrically arranged on the top of the mounting base plate (1), an electric telescopic rod (3) is symmetrically arranged on the outer side of the fixed mounting plate (2), an output end of the electric telescopic rod (3) is fixedly connected to a connecting clamp arm (4), a fixed frame (5) is fixedly connected to one side of the top of the mounting base plate (1), a fixed guide rail (6) is fixedly connected to the inner top of the fixed frame (5), a movable mounting block (7) is movably connected to the inner side of the fixed guide rail (6), a telescopic adjustment mechanism (8) is fixedly connected to the inside of the movable mounting block (7), an active end of the telescopic adjustment mechanism (8) is fixedly connected to a connecting positioning mechanism (9), an auxiliary positioning mechanism (10) is movably connected to the inside of the fixed guide rail (6), a connecting handle (12) is symmetrically arranged on the top of the mounting base plate (1), and a mounting foot (11) is symmetrically arranged on the outer side of the mounting base plate (1).

2. A PCBA pad repair mechanism according to claim 1, characterized in that: The telescopic adjustment mechanism (8) comprises a connecting sleeve rod (13) located inside the movable installation sleeve block (7), a fixed through groove (14) is provided on the top of the connecting sleeve rod (13), a movable connecting rod (15) is movably connected inside the connecting sleeve rod (13), one end of the movable connecting rod (15) is fixedly connected to a movable base (16), one end of the movable base (16) is threadedly connected to a first threaded rod (17), and the bottom end of the first threaded rod (17) is fixedly connected to a first friction disk (18).

3. A PCBA pad repair mechanism according to claim 2, characterized in that: The bottom end of the movable base (16) and the inner side of the fixed through groove (14) are slidably fitted to each other, and the outer side of the surface of the movable installation sleeve (7) and the inner side of the fixed guide rail (6) are fitted to each other.

4. A PCBA pad repair mechanism according to claim 2, characterized in that: The connection positioning mechanism (9) comprises a fixed guide block (19) fixedly connected to one end of a movable connecting rod (15); a fixed guide groove (20) is provided on the surface of the fixed guide block (19); a movable positioning block (21) is movably connected to the inner side of the fixed guide block (19); and a rear surface of the movable positioning block (21) is fixedly connected to a connecting toggle block (22) via a connecting rod located on the inner side of the fixed guide groove (20).

5. A PCBA pad repair mechanism according to claim 4, characterized in that: The outer side of the surface of the movable positioning block (21) and the inner side of the fixed guide block (19) are slidably fitted to each other.

6. A PCBA pad repair mechanism according to claim 1, characterized in that: The auxiliary positioning mechanism (10) comprises a movable mounting block (23), a threaded sleeve (24) is fixedly connected to the outer side of one end of the top of the movable mounting block (23), a second threaded rod (25) is movably connected to the inner side of the threaded sleeve (24) and the movable mounting block (23) via threads, and a second friction disc (26) is fixedly connected to one end of the second threaded rod (25).

7. A PCBA pad repair mechanism according to claim 6, characterized in that: The outer side of the surface of the movable installation block (23) is in contact with the inner side of the fixed guide rail (6), and one side of the second friction disk (26) is in contact with the surface of the fixed frame (5).

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