Rotatable PCB welding jig

Abstract

The utility model relates to PCB board processing technical field discloses a rotatable PCB board welding fixture, including frame, the frame inside fixedly connected with motor, motor output fixedly connected with carousel, the carousel inside fixedly connected with sleeve, the sleeve inside sliding connection has the guide column, the guide column top fixedly connected with heating aluminum plate, the carousel top fixedly connected with synthetic stone, heating aluminum plate sets up in synthetic stone interior, heating aluminum plate inside is provided with heating rod, heating aluminum plate inside is provided with the dowel pin, the carousel inside is provided with electric slip ring. In the utility model, through motor drives carousel rotation, rotates to the blanking hopper below with multiple heating aluminum plate in proper order, simultaneously, cylinder promotes the lifting column to drive heating aluminum plate to ascend along the guide column and to undertake PCB board, and after the dowel pin fixes PCB board, cylinder resets, and heating aluminum plate rotates into the welding station with carousel, realizes the effect that multi-station synchronous rotation feeds and welds.

Description

Technical Field

[0001] This utility model relates to the field of PCB board processing technology, and in particular to a rotatable PCB board welding fixture. Background Technology

[0002] In today's rapidly developing electronics manufacturing industry, PCB boards, as core components of various electronic products, directly impact the performance and production efficiency of these products through the quality and efficiency of their welding processes. PCB board welding fixtures, through automated, multi-station designs, enable efficient PCB board loading and continuous welding. These fixtures not only reduce errors and time losses caused by manual operation, improving welding accuracy and stability, but also significantly increase welding efficiency by leveraging the advantages of multi-station rotary loading. This meets the needs of large-scale production, reduces enterprise production costs, and helps electronics manufacturing companies improve capacity and product quality in the face of fierce market competition, driving the development of PCB board welding processes towards intelligence and efficiency.

[0003] Existing PCB board welding fixtures mostly adopt a single-station fixed structure. The PCB board is placed on the fixture manually, then fixed by a simple mechanical clamping device, and then the welding operation is completed by welding equipment.

[0004] However, existing PCB board welding fixtures have significant drawbacks. They are inefficient and difficult to maintain continuity. The single-station design means that only one PCB board can be welded at a time. The processes of loading, welding, and unloading are carried out sequentially, resulting in long waiting times and severely restricting production speed. This makes it impossible to meet the growing demand for large-scale and high-efficiency production in the electronics manufacturing industry, leading to limited production capacity for enterprises. Therefore, a rotatable PCB board welding fixture is proposed to solve the above problems. Utility Model Content

[0005] The purpose of this application is to provide a rotatable PCB board welding fixture, which aims to improve the problem of long waiting time caused by the single-station design in the prior art, which allows only one PCB board to be welded at a time and the sequential processes of loading, welding, and unloading.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: A rotatable PCB board welding fixture includes a frame, a motor fixedly connected inside the frame, a turntable fixedly connected to the output end of the motor, a sleeve fixedly connected inside the turntable, a guide post slidably connected inside the sleeve, a heating aluminum plate fixedly connected to the top of the guide post, a synthetic stone fixedly connected to the top of the turntable, the heating aluminum plate being disposed inside the synthetic stone, a heating rod being disposed inside the heating aluminum plate, a positioning pin being disposed inside the heating aluminum plate, an electric slip ring being disposed inside the turntable, a lifting assembly being disposed at the bottom of the heating aluminum plate, and a conveying assembly being disposed at the top of the frame; The lifting assembly includes a lifting column, the bottom end of which is fixedly connected to the bottom of the heated aluminum plate. The lifting column is slidably connected inside the turntable. A cylinder is fixedly connected inside the frame. The output shaft of the cylinder is in contact with the lifting column. A reset assembly is provided on the outer wall of the lifting column.

[0007] The above technical solution achieves the function of multi-station rotary heating and welding of PCB boards.

[0008] Preferably, the reset assembly includes a fixed ring and a spring. The inner wall of the fixed ring is fixedly connected to the outer wall of the lifting column, and the spring is sleeved on the outer wall of the lifting column. The two ends of the spring are respectively fixedly connected to the fixed ring and the turntable.

[0009] The above technical solution achieves the automatic reset of the lifting column and the heated aluminum plate.

[0010] Preferably, the conveying assembly includes a support frame and a belt conveyor, with the bottom of the support frame fixedly connected inside the frame and the bottom of the belt conveyor fixedly connected to the top of the support frame.

[0011] The above technical solution achieves the goal of providing stable installation support for belt conveyors.

[0012] Preferably, a fixing rod is fixedly connected to the side wall of the belt conveyor, and a fixing block is fixedly connected to the outer wall of the fixing rod.

[0013] The above technical solution achieves the purpose of providing an installation carrier for the limiting component.

[0014] Preferably, a sliding column is slidably connected inside the fixing block, a guide plate is fixedly connected to one end of the sliding column, a fixing frame is fixedly connected to one side of the guide plate, and a limit wheel is rotatably connected inside the fixing frame.

[0015] The above technical solution achieves the function of limiting the movement of the conveyed PCB board.

[0016] Preferably, a second spring is sleeved on the outer wall of the sliding column, and the two ends of the second spring are respectively fixedly connected to the inside of the fixing block and the guide plate.

[0017] The above technical solution achieves the effect of buffering the contact between the PCB board and the limiting wheel.

[0018] Preferably, a support block is fixedly connected to the side wall of the belt conveyor, and a buffer plate is rotatably connected to the support block.

[0019] The above technical solution achieves the function of buffering and guiding the unloaded PCB board.

[0020] Preferably, a hopper is fixedly connected to the side wall of the belt conveyor, and the hopper is located on top of the heated aluminum plate.

[0021] The above technical solution achieves the goal of guiding the PCB board above the heated aluminum plate.

[0022] In summary, this application includes at least one of the following beneficial technical effects: 1. In this utility model, a motor drives a turntable to rotate, sequentially rotating multiple heated aluminum plates to the bottom of the hopper. Simultaneously, a cylinder pushes a lifting column to lift the heated aluminum plates along a guide column to receive the PCB board. After the PCB board is fixed by a positioning pin, the cylinder resets, and the heated aluminum plates enter the welding station with the turntable. This achieves the effect of synchronous rotation, feeding, and welding at multiple stations, solving the problem that a single-station design can only weld one PCB board at a time, with feeding, welding, and unloading processes performed sequentially, resulting in long waiting times. This improves production efficiency.

[0023] 2. In this utility model, the PCB board is transported by a belt conveyor. The limiting wheel on the guide plate fits against the outer side of the PCB board for limiting. After the PCB board reaches the unloading end, it pushes the plastic buffer plate to rotate. The buffer plate buffers and guides the PCB board, so that the PCB board slides smoothly into the unloading hopper. This achieves the effect of precise and stable unloading of the PCB board, and solves the problem that the PCB board is easily damaged by collision during the traditional unloading process, or that the unloading position is offset, which leads to difficulties in subsequent loading. Attached Figure Description

[0024] Figure 1 This is a three-dimensional schematic diagram of a rotatable PCB board welding fixture proposed in this utility model; Figure 2 This is a schematic diagram of the top structure of the turntable of a rotatable PCB board welding fixture proposed in this utility model. Figure 3 This is a schematic diagram of the lifting column structure of a rotatable PCB board welding fixture proposed in this utility model. Figure 4 This is a schematic diagram of the hopper structure of a rotatable PCB board welding fixture proposed in this utility model; Figure 5This is a schematic diagram of the limiting wheel structure of a rotatable PCB board welding fixture proposed in this utility model; Explanation of reference numerals in the attached drawings: 1. Frame; 2. Motor; 3. Turntable; 4. Synthetic stone; 5. Heating aluminum plate; 6. Heating rod; 7. Positioning pin; 8. Guide column; 9. Electric slip ring; 10. Sleeve; 11. Lifting column; 12. Fixing ring; 13. Spring 1; 14. Cylinder; 15. Support frame; 16. Belt conveyor; 17. Hopper; 18. Support block; 19. Buffer plate; 20. Fixing rod; 21. Fixing block; 22. Sliding column; 23. Guide plate; 24. Fixing frame; 25. Limiting wheel; 26. Spring 2. Detailed Implementation

[0025] The following is in conjunction with the appendix Figure 1 - Appendix Figure 5 This application will be described in further detail below.

[0026] Reference Figure 1 and Figure 2 This utility model provides an embodiment of a rotatable PCB board welding fixture, comprising a frame 1, which is an integral support frame welded from steel, providing a stable mounting foundation for various components. A motor 2 is fixedly connected inside the frame 1. The motor 2 is a servo motor, characterized by precise speed and stable torque, which is existing technology and will not be described in detail here. A turntable 3 is fixedly connected to the output end of the motor 2. A sleeve 10 is fixedly connected inside the turntable 3. A guide post 8 is slidably connected inside the sleeve 10, providing precise sliding guidance for the guide post 8. A heating aluminum plate 5 is fixedly connected to the top of the guide post 8. The heating aluminum plate 5 is made of high thermal conductivity aluminum alloy and has undergone anodizing treatment, which not only enhances wear resistance and corrosion resistance but also... The turntable 3 is equipped with a synthetic stone 4 fixedly connected to its top. The heating aluminum plate 5 is placed inside the synthetic stone 4 to fix the heating aluminum plate 5. The heating aluminum plate 5 is equipped with a heating rod 6 inside. The heating rod 6 is an electric heating element made of stainless steel, which has the advantages of high heating efficiency and low thermal inertia. It can quickly heat the heating aluminum plate 5 to a suitable welding temperature and provide the heat required for PCB board welding. The heating aluminum plate 5 is equipped with a positioning pin 7 inside. The positioning pin 7 can be accurately inserted into the positioning hole of the PCB board to reliably position the PCB board and ensure the accurate position of the PCB board during welding, thereby improving welding accuracy. The turntable 3 is equipped with an electric slip ring 9. The bottom of the heating aluminum plate 5 is equipped with a lifting component, and the top of the frame 1 is equipped with a conveying component.

[0027] Reference Figures 1-3The lifting assembly includes a lifting column 11, the bottom end of which is fixedly connected to the bottom of the heating aluminum plate 5. The lifting column 11 is slidably connected inside the turntable 3. A cylinder 14 is fixedly connected inside the frame 1. The output shaft of the cylinder 14 is in contact with the lifting column 11 and can push the lifting column 11 to move up and down. When the output shaft of the cylinder 14 extends and pushes the lifting column 11 to rise, it drives the heating aluminum plate 5 to slide upward along the guide column 8, so that the PCB board gradually falls above the heating aluminum plate 5 and is fixed by the positioning pin 7. A reset assembly is provided on the outer wall of the lifting column 11. The reset assembly includes a fixing ring 12 and a spring 13. The inner wall of the fixing ring 12 is fixedly connected to the outer wall of the lifting column 11. The spring 13 is sleeved on the outer wall of the lifting column 11. The two ends of the spring 13 are fixedly connected to the fixing ring 12 and the turntable 3, respectively. When the output shaft of the cylinder 14 retracts, the reaction force of the spring 13 pushes the fixing ring 12, thereby driving the lifting column 11 and the heating aluminum plate 5 to reset downward, preparing for the next loading and welding.

[0028] Reference Figure 1 , Figure 4 and Figure 5The conveying assembly includes a support frame 15 and a belt conveyor 16. The bottom of the support frame 15 is fixedly connected to the inside of the frame 1. The support frame 15 is welded from angle steel, making it structurally stable and providing reliable support for the belt conveyor 16. The bottom of the belt conveyor 16 is fixedly connected to the top of the support frame 15. The belt conveyor 16 is driven by an electric motor to rotate the belt, which is existing technology and will not be described in detail here. A fixing rod 20 is fixedly connected to the side wall of the belt conveyor 16. A fixing block 21 is fixedly connected to the outer wall of the fixing rod 20. A sliding column 22 is slidably connected inside the fixing block 21. A guide plate 23 is fixedly connected to one end of the sliding column 22. The guide plate 23 can move under the action of the sliding column 22. A fixing frame 24 is fixedly connected to one side of the guide plate 23. A limit wheel 25 is rotatably connected inside the fixing frame 24. The limit wheel 25 is made of plastic with a smooth surface. A spring 26 is sleeved on the outer wall of the sliding column 22. The two ends of the spring 26 are fixedly connected to the fixing block 21 and the guide plate 23, respectively. During the conveying process, the PCB board pushes the guide plate 23, causing the sliding column 22 to slide within the fixed block 21. At the same time, the compression spring 26 and the limiting wheel 25 are attached to the outside of the PCB board to limit its movement, ensuring stable conveying and preventing the PCB board from shifting during the conveying process. A support block 18 is fixedly connected to the side wall of the belt conveyor 16, and a buffer plate 19 is rotatably connected to the support block 18. The buffer plate 19 is made of plastic and has good elasticity. When the PCB board is conveyed to the unloading end of the belt conveyor 16, the PCB board contacts the buffer plate 19, and the buffer plate 19 rotates under force, which buffers and guides the PCB board, preventing the PCB board from being damaged by falling directly. At the same time, it allows the PCB board to slide accurately into the unloading hopper 17. The unloading hopper 17 is fixedly connected to the side wall of the belt conveyor 16. The unloading hopper 17 is located on top of the heated aluminum plate 5 and can smoothly guide the PCB board guided by the buffer plate 19 to the top of the heated aluminum plate 5, and complete the loading of the PCB board with the help of the lifting assembly.

[0029] Working principle: In the PCB board soldering process, the PCB board to be processed is first placed on the belt conveyor 16. After the belt conveyor 16 is started, it begins to transport the PCB board. During the transport process, the PCB board will come into contact with the limiting wheel 25 on the guide plate 23. Due to the push of the PCB board, the guide plate 23 will drive the sliding column 22 to slide in the fixed block 21, while compressing the spring 26. The limiting wheel 25 is attached to the outside of the PCB board to limit the PCB board and ensure its stable transport. When the PCB board is conveyed to the unloading end of the belt conveyor 16, it comes into contact with the buffer plate 19 made of plastic. The buffer plate 19 rotates under force, which buffers and guides the PCB board, allowing it to slide into the unloading hopper 17. Then, the motor 2 starts, driving the turntable 3 to rotate, rotating one of the heated aluminum plates 5 to below the unloading hopper 17. At this time, the output shaft of the cylinder 14 extends, pushing the lifting column 11 to move upward. The lifting column 11 drives the heated aluminum plate 5 to slide upward along the guide column 8. At the same time, the fixing ring 12 compresses the spring 13, causing the PCB board to gradually fall above the heated aluminum plate 5. Then, the PCB board is fixed by the positioning pin 7. At this time, the output shaft of the cylinder 14 retracts, and the reaction force of the spring 13 pushes the fixing ring 12, thereby driving the lifting column 11 and the heated aluminum plate 5 to return to their original position. After that, the motor 2 drives the turntable 3 to rotate again, rotating the remaining heated aluminum plates 5 to below the unloading hopper 17 for loading. The above-mentioned rotation, lifting, and resetting operations are repeated to achieve the effect of multi-station rotation loading and welding, improving the efficiency and continuity of welding.

Claims

1. A rotatable PCB soldering jig comprising a frame (1), characterized in that: The frame (1) is fixedly connected to a motor (2), the output end of the motor (2) is fixedly connected to a turntable (3), the turntable (3) is fixedly connected to a sleeve (10), the sleeve (10) is slidably connected to a guide column (8), the top of the guide column (8) is fixedly connected to a heating aluminum plate (5), the top of the turntable (3) is fixedly connected to a synthetic stone (4), the heating aluminum plate (5) is set inside the synthetic stone (4), the heating aluminum plate (5) is set inside the heating aluminum plate (5), the heating aluminum plate (5) is set inside the heating aluminum plate (5), the heating aluminum plate (5) is set inside the heating aluminum plate (5), the turntable (3) is set inside the electric slip ring (9), the bottom of the heating aluminum plate (5) is set with a lifting component, and the top of the frame (1) is set with a conveying component. The lifting assembly includes a lifting column (11), the bottom end of which is fixedly connected to the bottom of the heating aluminum plate (5), the lifting column (11) is slidably connected inside the turntable (3), a cylinder (14) is fixedly connected inside the frame (1), the output shaft of the cylinder (14) is in contact with the lifting column (11), and a reset assembly is provided on the outer wall of the lifting column (11).

2. The rotatable PCB soldering fixture of claim 1, wherein: The reset assembly includes a fixed ring (12) and a spring (13). The inner wall of the fixed ring (12) is fixedly connected to the outer wall of the lifting column (11). The spring (13) is sleeved on the outer wall of the lifting column (11). The two ends of the spring (13) are fixedly connected to the fixed ring (12) and the turntable (3) respectively.

3. The rotatable PCB soldering fixture of claim 1, wherein: The conveying assembly includes a support frame (15) and a belt conveyor (16). The bottom of the support frame (15) is fixedly connected to the inside of the frame (1), and the bottom of the belt conveyor (16) is fixedly connected to the top of the support frame (15).

4. The rotatable PCB soldering fixture of claim 3, wherein: The belt conveyor (16) is fixedly connected to a fixing rod (20) on its side wall, and a fixing block (21) is fixedly connected to the outer wall of the fixing rod (20).

5. The rotatable PCB soldering fixture of claim 4, wherein: The fixed block (21) has a sliding column (22) inside, and a guide plate (23) is fixedly connected to one end of the sliding column (22). A fixed frame (24) is fixedly connected to one side of the guide plate (23), and a limit wheel (25) is rotatably connected inside the fixed frame (24).

6. The rotatable PCB soldering fixture of claim 5, wherein: The outer wall of the sliding column (22) is fitted with a second spring (26), and the two ends of the second spring (26) are respectively fixedly connected to the inside of the fixed block (21) and the guide plate (23).

7. The rotatable PCB soldering fixture of claim 3, wherein: The belt conveyor (16) has a support block (18) fixedly connected to its side wall, and the support block (18) is rotatably connected to a buffer plate (19).

8. The rotatable PCB soldering fixture of claim 7, wherein: The belt conveyor (16) has a hopper (17) fixedly connected to its side wall, and the hopper (17) is located on top of the heated aluminum plate (5).

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