PCB (Printed Circuit Board) spot welding device

Abstract

The utility model discloses a PCB spot welding device which comprises a machine table, a plurality of stations are arranged on the machine table, each station is provided with a transmission seat, each transmission seat is provided with a PCB fixing seat capable of moving front and back, and the machine table is provided with a mounting frame located behind the PCB fixing seats. A mounting seat capable of moving transversely is arranged on the mounting frame, an air cylinder is arranged on the mounting seat, and a spot welding gun is mounted at the lower end of a piston rod of the air cylinder. Compared with the prior art, the spot welding device has the advantages that the PCB fixing base can move front and back through the design of the transmission base, and the spot welding efficiency and flexibility are improved; a mounting frame transverse moving mechanism enables the spot welding gun to transversely move, so that the practicability is enhanced; the fixing groove and the pressing plate ensure the stability of the PCB, and the spot welding accuracy is improved; and the negative pressure fan provides a cooling function, so that the PCB is prevented from being deformed or damaged, and the spot welding quality is improved. On the whole, the device has higher flexibility, practicability and spot welding quality.

Description

Technical Field

[0001] The utility model relates to the technical field of PCB circuit boards, in particular to a PCB circuit board spot welding device. Background Art

[0002] In the field of electronic manufacturing, spot welding of PCB (printed circuit board) circuit boards is a common and important process step. Most existing PCB circuit board spot welding devices adopt a fixed spot welding method, and the movement range and flexibility of the spot welding head are limited, resulting in the inability to effectively spot weld PCB circuit boards in different positions or different stations. In addition, the high temperature generated during the spot welding process may cause the PCB circuit board to deform or damage, affecting product quality and production efficiency. Utility Model Content

[0003] The technical problem to be solved by the utility model is to overcome the above technical defects and provide a PCB circuit board spot welding device.

[0004] In order to solve the above technical problems, the technical solution provided by the utility model is as follows: a PCB circuit board spot welding device, comprising a machine platform, a plurality of workstations are arranged on the machine platform, each workstation is provided with a transmission seat and a PCB circuit board fixing seat that can move forward and backward is arranged on the transmission seat, a mounting frame located behind the PCB circuit board fixing seat is arranged on the machine platform, a mounting seat that can move laterally is arranged on the mounting frame, a cylinder is arranged on the mounting seat, and a spot welding gun is installed at the lower end of the cylinder piston rod;

[0005] Preferably, an installation cavity is provided inside the transmission seat, and guide grooves connected to the installation cavity are provided on both sides of the transmission seat. A driving plate fixed to the bottom of the PCB circuit board fixing seat is slidably provided in the guide groove, and a Y-axis screw is rotatably provided in the installation cavity. The Y-axis screw is driven by a Y-axis motor arranged at the end of the transmission seat, and the driving plate is threadedly connected to the Y-axis screw.

[0006] Preferably, a mounting groove is provided on the front side of the mounting frame, an X-axis lead screw is rotatably provided in the mounting groove, the X-axis lead screw is driven by an X-axis motor arranged on one side of the mounting frame, the back of the mounting seat is threadedly connected to the X-axis lead screw through an X-axis drive plate, an X-axis guide rail is provided in the mounting groove, and the back of the mounting seat is slidably connected to the guide rail through a guide seat.

[0007] Preferably, a PCB circuit board fixing slot is provided on the PCB circuit board fixing seat, four corners of the PCB circuit board fixing slot are provided with positioning screws, and a rotatable pressing plate is provided on the positioning screws.

[0008] Preferably, the mounting frame is provided with a negative pressure fan corresponding to the work station.

[0009] The advantages of the utility model compared with the prior art are: first, through the design inside the transmission seat, the forward and backward movement of the PCB circuit board fixing seat is realized, which improves the flexibility and efficiency of spot welding; secondly, the lateral movement mechanism on the mounting frame allows the spot welding gun to move laterally, further enhancing the practicality of the device; in addition, the fixing groove and pressure plate design on the PCB circuit board fixing seat ensure the stability of the PCB circuit board and the accuracy of spot welding; finally, the negative pressure fan on the mounting frame provides a cooling function for the spot welding process, effectively preventing the deformation or damage of the PCB circuit board, and improving the spot welding quality. In summary, the PCB circuit board spot welding device of the present application has higher flexibility, practicality and spot welding quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a structural schematic diagram of a PCB circuit board spot welding device of the present application.

[0011] Figure 2 It is a partial structural schematic diagram of a PCB circuit board fixing seat in a PCB circuit board spot welding device of the present application.

[0012] Figure 3 It is a schematic diagram of the internal structure of a transmission seat in a PCB circuit board spot welding device of the present application.

[0013] As shown in the figure: 1. Machine table, 2. Transmission seat, 3. PCB circuit board fixing seat, 4. Mounting frame, 5. Mounting seat, 6. Cylinder, 7. Spot welding gun, 8. Mounting cavity, 9. Guide groove, 10. Drive plate, 11. Y-axis screw, 12. Y-axis motor, 13. Mounting groove, 14. X-axis screw, 15. X-axis motor, 16. X-axis guide rail, 17. PCB circuit board fixing groove, 18. Positioning screw, 19. Pressure plate, 20. Negative pressure fan. DETAILED DESCRIPTION

[0014] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0015] The specific implementation of the utility model is further described below in conjunction with the accompanying drawings, wherein the same parts are represented by the same reference numerals.

[0016] It should be noted that the words "front", "rear", "left", "right", "up" and "down" used in the following description refer to directions in the drawings, and the words "inside" and "outside" refer to directions toward or away from the geometric center of a specific component, respectively.

[0017] In order to make the contents of the present invention more clearly understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention.

[0018] Combined with Figure 1 -Attached Figure 3 A PCB spot welding device comprises a machine platform 1, a plurality of workstations are arranged on the machine platform 1, a transmission seat 2 is arranged on each workstation, and a PCB circuit board fixing seat 3 which can move forward and backward is arranged on the transmission seat 2, a mounting frame 4 is arranged on the machine platform 1 and is located behind the PCB circuit board fixing seat 3, a mounting frame 4 is arranged on the mounting frame 4 and is provided with a mounting seat 5 which can move laterally, a cylinder 6 is arranged on the mounting seat 5, and a spot welding gun 7 is arranged on the lower end of the piston rod of the cylinder 6;

[0019] In one embodiment, a mounting cavity 8 is provided inside the transmission seat 2, and guide grooves 9 communicating with the mounting cavity 8 are provided on both sides of the transmission seat 2. A driving plate 10 fixed to the bottom of the PCB circuit board fixing seat 3 is slidably provided in the guide grooves 9, and a Y-axis lead screw 11 is rotatably provided in the mounting cavity 8. The Y-axis lead screw 11 is driven by a Y-axis motor 12 provided at the end of the transmission seat 2, and the driving plate 10 is threadedly connected to the Y-axis lead screw 11. In this embodiment, a mounting cavity 8 is designed inside the transmission seat 2, and the mounting cavity 8 provides sufficient space for the transmission mechanism. Guide grooves 9 are provided on both sides of the transmission seat 2, and these guide grooves 9 ensure that the driving plate 10 remains stable and does not deviate from the track when moving. The driving plate 10 is fixed to the bottom of the PCB circuit board fixing seat 3, and when the driving plate 10 moves, the PCB circuit board fixing seat 3 will also move accordingly. The introduction of the Y-axis lead screw 11 provides power for the forward and backward movement of the PCB circuit board fixing seat 3. When the Y-axis motor 12 is started, it drives the Y-axis screw 11 to rotate. Since the drive plate 10 and the Y-axis screw 11 are threadedly connected, the drive plate 10 moves along the axial direction of the Y-axis screw 11, thereby driving the PCB circuit board fixing seat 3 to move forward and backward.

[0020] In one embodiment, the front of the mounting frame 4 is provided with a mounting groove 13, and an X-axis lead screw 14 is rotatably provided in the mounting groove 13. The X-axis lead screw 14 is driven by an X-axis motor 15 arranged on one side of the mounting frame 4, and the back of the mounting seat 5 is threadedly connected with the X-axis lead screw 14 through an X-axis drive plate. An X-axis guide rail 16 is provided in the mounting groove 13, and the back of the mounting seat 5 is slidably connected with the guide rail through a guide seat. The rotation of the X-axis lead screw 14 is driven by the X-axis motor 15. When the X-axis motor 15 is started, the X-axis lead screw 14 will rotate. Since the back of the mounting seat 5 is threadedly connected with the X-axis lead screw 14 through the X-axis drive plate, the mounting seat 5 will move along the axial direction of the X-axis lead screw 14 to achieve lateral movement. In addition, an X-axis guide rail 16 is also provided in the mounting groove 13, which ensures that the mounting seat 5 is more stable when moving. A guide seat is provided at the back of the mounting seat 5, and the guide seat is slidably connected with the X-axis guide rail 16, providing a stable moving path for the mounting seat 5.

[0021] In one embodiment, a PCB circuit board fixing seat 3 is provided with a PCB circuit board fixing groove 17, and four corners of the PCB circuit board fixing groove 17 are provided with positioning screws 18, and a rotatable pressing plate 19 is provided on the positioning screws 18. The PCB circuit board fixing seat 3 in this embodiment is provided with a PCB circuit board fixing groove 17, which is designed to fix the PCB circuit board. Four corners of the fixing groove are provided with positioning screws 18, and these positioning screws 18 are used to ensure that the position of the PCB circuit board in the fixing groove is stable. A rotatable pressing plate 19 is provided on the positioning screw 18, and when the PCB circuit board needs to be fixed, the pressing plate 19 can be rotated to press the four corners of the PCB circuit board. This design not only ensures the stability of the PCB circuit board, but also facilitates operation.

[0022] In one embodiment, a negative pressure fan 20 corresponding to the workstation is provided on the mounting frame 4. In this embodiment, a negative pressure fan 20 corresponding to the workstation is also provided on the mounting frame 4. The introduction of the negative pressure fan 20 is to cool the PCB circuit board during the spot welding process to prevent deformation or damage caused by high temperature. The position of the negative pressure fan 20 corresponds to the workstation to ensure that when the PCB circuit board is moved to the bottom of the spot welding gun 7 for spot welding, the negative pressure fan 20 can immediately cool the PCB circuit board. This design not only improves the spot welding efficiency, but also ensures the quality of the PCB circuit board.

[0023] Working principle: When in use, place the PCB circuit board that needs spot welding into the PCB circuit board fixing groove 17, rotate the pressure plate 19 around the PCB circuit board fixing groove 17, so that the pressure plate 19 presses the four corners of the PCB circuit board, and then start the Y-axis motor 12 to drive the rotation of the Y-axis screw 11, the rotation of the Y-axis screw 11 drives the movement of the driving plate 10, and the driving plate 10 drives the entire PCB circuit board fixing seat 3 to move backward, and wait for the PCB circuit board to move below the spot welding gun 7, start the welding gun 7 and the cylinder 6, the cylinder 6 pushes the welding gun 7 down and spot welds the PCB circuit board, and in order to be able to spot weld different positions of the PCB circuit board and PCB circuit boards at different stations, start the X-axis motor 15, the X-axis motor 15 drives the rotation of the X-axis screw 14, the rotation of the X-axis screw 14 drives the movement of the X-axis drive plate, and the X-axis drive plate drives the entire mounting seat 5 to move horizontally, thereby being able to drive the horizontal movement of the spot welding gun 7, so that the PCB circuit boards on multiple stations can be spot welded comprehensively.

[0024] The above description of the utility model and its implementation methods is not restrictive. The drawings show only one implementation method of the utility model, and the actual structure is not limited thereto. In short, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the invention of the utility model, they should all fall within the protection scope of the utility model.

Claims

1. A PCB circuit board spot welding device, characterized in that: The machine comprises a machine platform (1), wherein a plurality of workstations are arranged on the machine platform (1), each workstation is provided with a transmission seat (2), and the transmission seat (2) is provided with a PCB circuit board fixing seat (3) capable of moving forward and backward, the machine platform (1) is provided with a mounting frame (4) located behind the PCB circuit board fixing seat (3), the mounting frame (4) is provided with a mounting seat (5) capable of moving laterally, the mounting seat (5) is provided with a cylinder (6), and a spot welding gun (7) is installed at the lower end of the piston rod of the cylinder (6); The PCB circuit board fixing seat (3) is provided with a PCB circuit board fixing groove (17), four corners of the PCB circuit board fixing groove (17) are provided with positioning screws (18), and a rotatable pressing plate (19) is provided on the positioning screws (18); The mounting frame (4) is provided with a negative pressure fan (20) corresponding to the work station.

2. A PCB circuit board spot welding device according to claim 1, characterized in that: The transmission seat (2) is provided with a mounting cavity (8) inside, and guide grooves (9) communicating with the mounting cavity (8) are provided on both sides of the transmission seat (2). A driving plate (10) fixed to the bottom of the PCB circuit board fixing seat (3) is slidably provided in the guide groove (9), and a Y-axis lead screw (11) is rotatably provided in the mounting cavity (8). The Y-axis lead screw (11) is driven by a Y-axis motor (12) provided at the end of the transmission seat (2), and the driving plate (10) is threadedly connected to the Y-axis lead screw (11).

3. A PCB circuit board spot welding device according to claim 1, characterized in that: The front of the mounting frame (4) is provided with a mounting groove (13), an X-axis lead screw (14) is rotatably arranged in the mounting groove (13), the X-axis lead screw (14) is driven by an X-axis motor (15) arranged on one side of the mounting frame (4), the back of the mounting seat (5) is threadedly connected to the X-axis lead screw (14) via an X-axis drive plate, an X-axis guide rail (16) is arranged in the mounting groove (13), and the back of the mounting seat (5) is slidably connected to the guide rail via a guide seat.

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