A fin soldering apparatus

The automatic flipping and welding of heat sinks is achieved by using a motor-driven guide plate and magnetic chuck, and a water pump system is used for cooling. This solves the problems of cumbersome heat sink welding operations and overheating deformation, and improves welding efficiency and quality.

CN122343291APending Publication Date: 2026-07-07ZHONGSHAN MINGWEI THERMAL TECHNOLOGY CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
ZHONGSHAN MINGWEI THERMAL TECHNOLOGY CO LTD
Filing Date
2025-01-07
Publication Date
2026-07-07

AI Technical Summary

Technical Problem

In the process of heat sink welding, the existing technology requires manually rotating the heat sink to complete the welding, which is cumbersome and the high temperature in the welding area can cause the heat sink to overheat or deform, affecting performance.

Method used

A welding device was designed that uses a motor-driven guide plate and a magnetic chuck to automatically flip and weld heat sinks, and uses a water pump and water outlet pipe system to cool the welding area and prevent overheating.

Benefits of technology

It improves welding efficiency, avoids overheating or deformation of the heat sink, and ensures welding quality and performance.

✦ Generated by Eureka AI based on patent content.

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    Figure CN122343291A_ABST
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Abstract

The application belongs to the technical field of welding, and discloses a welding edge device for heat dissipation fins, which comprises a workbench, a groove is formed in the middle of the top of the workbench, a supporting rod is arranged on the top of the groove, a guide plate is fixedly connected to the top of the supporting rod, and a connecting rod one is fixedly connected to the two sides of the top of the guide plate. In the application, the opening of the motor drives the rotating rod to drive the gear to rotate, the gear meshes with the rack to drive the guide plate to move, the movement of the guide plate drives the connecting rod one, the magnetic chuck and the heat dissipation fin to rotate, the connecting rod two and the guide roller slide in the guide groove one to guide and support when the guide plate moves, the edge part of the heat dissipation fin can be always kept between the roller welding machine one and the roller welding machine two for welding when rotating, the heat dissipation fin needs not to be rotated for welding the other side after one side of the heat dissipation fin is welded, and the working efficiency is improved.
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Description

Technical Field

[0001] This invention belongs to the field of welding technology, specifically a welding edge device for heat sinks. Background Technology

[0002] A heat sink welding roll welding machine is a specialized device for welding the edges of heat sinks. It is commonly used in the production of radiators and heat sinks. It typically utilizes roll welding technology to join two metal components together through heating and pressure. The welding process is carried out under high temperature and pressure, ensuring the strength and reliability of the weld joint. It is suitable for large-scale production of heat dissipation devices, and is particularly important in heat dissipation solutions in industries such as electronics, power, and automobiles. It is mainly used to weld the edges of heat sinks to other components (such as heat pipes, connecting pieces, etc.) to form a solid connection, ensuring the efficiency and durability of the heat dissipation system. It is widely used in the manufacturing process of metal products such as radiators and heat sinks.

[0003] When welding heat sinks using a roll welding machine, the worker holds the heat sink and places its edge between two welding machines to complete the welding process. However, after welding one side of the heat sink, it is necessary to rotate the heat sink to weld the unwelded parts, which is a rather cumbersome operation. In some cases, the heat sink is transported between two roll welding machines using conveyor rollers, but this only allows welding on the other side of the heat sink. Furthermore, high temperatures are generated in the welding area during the roll welding process, especially in the molten metal part. Overheating or deformation of the heat sink during welding can affect its performance. Summary of the Invention

[0004] To address the issues raised in the background art, where welding is required on one side of the heat sink after welding, and the unwelded parts need to be rotated for welding, which is cumbersome, and where some heat sinks are conveyed between two roll welding machines via conveyor rollers for welding, but this only allows welding on the other side of the heat sink during conveyor roller transport, and the welding area generates high temperatures during the roll welding process, especially the molten metal, causing the heat sink to overheat or deform during welding, affecting its performance, this invention provides a heat sink edge welding device.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a heat sink welding device, comprising a workbench, a groove formed in the center of the top of the workbench, a support rod provided at the top of the groove, a guide plate fixedly connected to the top of the support rod, connecting rods one fixedly connected to the top two sides of the guide plate, magnetic chucks installed at the ends of the two connecting rods one away from the guide plate, and a heat sink installed at the ends of the magnetic chucks one away from the connecting rods one, a guide groove formed inside the guide plate, an output groove formed on the side of the guide plate away from the guide groove one, a rack installed on one side of the output groove, a connecting rod two fixedly connected to the top side of the workbench, the connecting rod two passing through the guide plate and slidably connected, a guide roller rotatably connected to the outer wall of the connecting rod two, the guide roller sliding in the guide groove one, a motor installed on the bottom side of the workbench, a rotating rod rotatably connected to the output end of the motor, a gear fixedly connected to the rotating rod passing through the outer wall of the workbench, the gear rotating in the output groove and meshing with the rack.

[0006] Preferably, an L-shaped mounting plate is fixedly connected to the top of the workbench near the side of the connecting rod 2. A first roller welding machine is installed on the top of the workbench between the connecting rod 2 and the L-shaped mounting plate. A cylinder is installed on the top of the L-shaped mounting plate. The output end of the cylinder passes through the L-shaped mounting plate and is fixedly connected to the second roller welding machine.

[0007] Preferably, a collection box is installed at the bottom of the workbench, a water pump is installed on one side of the collection box, an L-shaped water pipe is installed on the side of the water pump away from the collection box, a U-shaped water pipe is installed on the side of the L-shaped water pipe away from the water pump, and the U-shaped water pipe is located at the top of the L-shaped mounting plate. A connecting pipe is fixedly connected to the side of the U-shaped water pipe away from the L-shaped water pipe, and the connecting pipe passes through the L-shaped mounting plate. A water outlet pipe is slidably connected through the interior of the connecting pipe.

[0008] Preferably, a connecting plate is fixedly connected to the outer wall of the water outlet pipe, and the end of the connecting plate away from the water outlet pipe is fixedly connected to the output end of the cylinder.

[0009] Preferably, telescopic rods are installed on both sides of the L-shaped mounting plate between the two roll welding machines, and the end of the telescopic rod away from the L-shaped mounting plate is fixedly connected to the two roll welding machines.

[0010] Preferably, the top edge of the guide plate is provided with a guide angle 1, which can guide the water sprayed from the connecting pipe into the groove.

[0011] Preferably, the top edge of the groove is provided with a guide angle II, and the interior of the groove is provided with multiple water channels, which are matched with the collection box.

[0012] Preferably, a U-shaped baffle is fixedly connected to one edge of the top of the workbench to block the water flow sprayed from the connecting pipe.

[0013] Preferably, a filter groove is provided through one side of the inside of the collection box, a filter frame is slidably connected inside the filter groove, and a filter screen is provided through and fixedly connected inside the filter frame.

[0014] Preferably, the collection box has a water inlet on the side away from the filter frame, and a drain outlet is provided at the bottom of the collection box near the water inlet.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0016] This invention improves work efficiency by setting up a motor and guide plate to work together, avoiding the need to rotate the heat sink to weld the other side after welding one side of the heat sink. Turning on the motor causes the rotating rod to drive the gear to rotate, and the gear meshes with the rack to move the guide plate. The movement of the guide plate causes the connecting rod one, the magnetic chuck and the heat sink to rotate. When the guide plate moves, the connecting rod two and the guide roller slide in the guide groove one to provide guidance and support. This ensures that the edge of the heat sink is always kept between the two welding machines during rotation.

[0017] This invention, through the coordination of a water pump and a water outlet pipe, prevents the heat sink from overheating or deforming during welding, thus affecting its performance. When the cylinder is activated and the second roller welding machine descends, the water outlet pipe slides within the connecting pipe via the connecting plate, ensuring that the water outlet pipe always contacts the welding area of ​​the second roller welding machine. Simultaneously, the water pump draws water from the collection tank and transmits it through the L-shaped water pipe, U-shaped water pipe, and connecting pipe to the water outlet pipe, which then discharges the water, thus cooling down the welding process between the first and second roller welding machines.

[0018] This invention, through the combination of a filter screen groove and a filter screen, allows filtered water to be pumped into a collection tank for recycling, reducing water waste. During welding spraying, the water flows to the surface of the guide plate by gravity, is guided downwards by guide angle one, and enters the groove through guide angle two. Then, it enters the collection tank through the water channel to collect the wastewater. When the wastewater enters the collection tank, it first passes through the filter screen for filtration. The filtered water can then be pumped into the collection tank for recycling, further reducing water waste. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0020] Figure 2 This is a schematic diagram of the groove of the present invention;

[0021] Figure 3 This is a cross-sectional view of the workbench of the present invention;

[0022] Figure 4 This is a schematic diagram of the guide plate, connecting rod 1, and magnetic chuck of the present invention;

[0023] Figure 5 For the present invention Figure 4 Enlarged view of point A in the middle;

[0024] Figure 6 This is a cross-sectional view of the L-shaped mounting plate of the present invention;

[0025] Figure 7 For the present invention Figure 6 Enlarged view at point B in the middle;

[0026] Figure 8 This is a cross-sectional view of the collection box of the present invention.

[0027] In the diagram: 1. Workbench; 2. Groove; 3. Support rod; 4. Guide plate; 5. Connecting rod one; 6. Magnetic chuck; 7. Guide groove one; 8. Output groove; 9. Rack; 10. Connecting rod two; 11. Guide roller; 12. Motor; 13. Rotating rod; 14. Gear; 15. L-shaped mounting plate; 16. Roller welding machine one; 17. Cylinder; 18. Roller welding machine two; 19. Telescopic rod; 20. Collection box; 21. Water pump; 22. L-shaped water pipe; 23. U-shaped water pipe; 24. Connecting pipe; 25. Water outlet pipe; 26. Connecting plate; 27. Filter screen groove; 28. Filter screen frame; 29. ​​Filter screen; 30. U-shaped baffle; 31. Guide angle one; 32. Guide angle two; 33. Water passage groove; 34. Water inlet; 35. Drain outlet; 36. Heat sink. Detailed Implementation

[0028] 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.

[0029] like Figures 1 to 8As shown, this embodiment provides a welding device for heat sinks, including a workbench 1. A groove 2 is formed in the center of the top of the workbench 1. A support rod 3 is provided on the top of the groove 2. A guide plate 4 is fixedly connected to the top of the support rod 3. Connecting rods 5 are fixedly connected to both sides of the top of the guide plate 4. Magnetic chucks 6 are installed at the ends of the two connecting rods 5 away from the guide plate 4. A heat sink 36 is installed at the end of the magnetic chuck 6 away from the connecting rods 5. A guide groove 7 is formed inside the guide plate 4. An output groove 8 is formed on the side of the guide plate 4 away from the guide groove 7. A rack 9 is installed on one side of the output slot 8. A connecting rod 10 is fixedly connected to the top side of the workbench 1. The connecting rod 10 passes through the guide plate 4 and is slidably connected. A guide roller 11 is rotatably connected to the outer wall of the connecting rod 10. The guide roller 11 slides in the guide slot 7. A motor 12 is installed on the bottom side of the workbench 1. A rotating rod 13 is rotatably connected to the output end of the motor 12. A gear 14 is fixedly connected to the rotating rod 13 through the outer wall of the workbench 1. The gear 14 rotates in the output slot 8 and meshes with the rack 9.

[0030] An L-shaped mounting plate 15 is fixedly connected to the top of the workbench 1 near the side of the connecting rod 2 10. A roller welding machine 16 is installed on the top of the workbench 1 between the connecting rod 2 10 and the L-shaped mounting plate 15. A cylinder 17 is installed on the top of the L-shaped mounting plate 15. The output end of the cylinder 17 passes through the L-shaped mounting plate 15 and is fixedly connected to the roller welding machine 2 18.

[0031] The above solution involves turning on the motor 12 to rotate the rotating rod 13, which in turn drives the gear 14 to rotate. The gear 14 meshes with the rack 9, causing the guide plate 4 to move. The movement of the guide plate 4 causes the connecting rod 5, the magnetic chuck 6, and the heat sink 36 to rotate. As the guide plate 4 moves, the connecting rod 10 and the guide roller 11 slide within the guide groove 7 for guidance and support. This ensures that the edge of the heat sink 36 remains between the welding machine 16 and the welding machine 18 during rotation, avoiding the need to rotate the heat sink 36 to weld the other side after welding one side, thus improving work efficiency.

[0032] Align the edge of the heat sink 36 with the first welding machine 16, and then place the heat sink 36 on the magnetic chuck 6 for fixation. After placement, open the cylinder 17 to move the second welding machine 18 downwards. The second welding machine 18 and the first welding machine 16 are used to weld the edge of the heat sink 36. The design of the support rod 3 makes the guide plate 4 more stable when moving.

[0033] Guide groove 7 and output groove 8 are surrounded inside guide plate 4. Guide groove 7 is located at the upper part of the inside of guide plate 4, while output groove 8 is located at the lower part of the inside of guide plate 4.

[0034] like Figures 1 to 8As shown, a collection box 20 is installed at the bottom of the workbench 1. A water pump 21 is installed on one side of the collection box 20. An L-shaped water pipe 22 is installed on the side of the water pump 21 away from the collection box 20. A U-shaped water pipe 23 is installed on the side of the L-shaped water pipe 22 away from the water pump 21. The U-shaped water pipe 23 is located at the top of the L-shaped mounting plate 15. A connecting pipe 24 is fixedly connected to the side of the U-shaped water pipe 23 away from the L-shaped water pipe 22. The connecting pipe 24 passes through the L-shaped mounting plate 15. A water outlet pipe 25 is slidably connected through the inside of the connecting pipe 24.

[0035] A connecting plate 26 is fixedly connected to the outer wall of the water outlet pipe 25, and the end of the connecting plate 26 away from the water outlet pipe 25 is fixedly connected to the output end of the cylinder 17.

[0036] Telescopic rods 19 are installed on both sides of the L-shaped mounting plate 15 between the two roller welding machines 18, and the end of the telescopic rod 19 away from the L-shaped mounting plate 15 is fixedly connected to the two roller welding machines 18.

[0037] The top edge of the guide plate 4 is provided with a guide angle 31, which can guide the water sprayed by the connecting pipe 24 into the groove 2.

[0038] The top edge of the groove 2 is provided with a guide angle 32. The interior of the groove 2 is provided with multiple water channels 33, and the water channels 33 cooperate with the collection box 20. A U-shaped baffle 30 is fixedly connected to one side edge of the top of the workbench 1 to block the water flow sprayed down from the connecting pipe 24.

[0039] The above solution is adopted: by turning on the water pump 21, water in the collection tank 20 is drawn and transported through the L-shaped water pipe 22, the U-shaped water pipe 23 and the connecting pipe 24 to the outlet pipe 25. The water is discharged through the outlet pipe 25, so that the welding of the first welding machine 16 and the second welding machine 18 is cooled down, so as to avoid the heat sink 36 from overheating or deforming during welding, which would affect the performance of the heat sink.

[0040] When the cylinder 17 is opened and the roller welding machine 18 descends, the connecting plate 26 will drive the water outlet pipe 25 to slide inside the connecting pipe 24, so that the water outlet pipe 25 always fits the welding part of the roller welding machine 18.

[0041] During the welding spraying process, the water flow will first flow to the surface of the guide plate 4 by gravity, and then be guided downward by the first guide angle 31 to enter the groove 2 through the second guide angle 32. Then, it will enter the collection box 20 through the water channel 33 to collect the wastewater.

[0042] like Figures 1 to 8 As shown, a filter groove 27 is provided through one side of the inside of the collection box 20. A filter frame 28 is slidably connected inside the filter groove 27. A filter screen 29 is provided through and fixedly connected inside the filter frame 28.

[0043] A water inlet 34 is provided on the side of the collection box 20 away from the filter frame 28, and a drain outlet 35 is provided on the lower part of the side of the collection box 20 near the water inlet 34.

[0044] The above scheme is adopted: when wastewater enters the collection tank 20, it will first pass through the filter screen 29 to filter the wastewater. The filtered water can be pumped out of the collection tank 20 by the water pump 21 for recycling, which can reduce the waste of water resources. When it is necessary to change the water, the drain outlet 35 is opened to drain the water in the collection tank 20, and then new water is added to the collection tank 20 through the water inlet 34.

[0045] Working principle and usage process of this invention:

[0046] During operation, the edge of the heat sink 36 is first aligned with the first welding machine 16, and then the heat sink 36 is placed on the magnetic chuck 6 for fixation. After placement, the cylinder 17 is turned on to move the second welding machine 18 downwards. The second welding machine 18 and the first welding machine 16 are used to weld the edge of the heat sink 36. At the same time, the motor 12 is turned on to make the rotating rod 13 drive the gear 14 to rotate. The gear 14 meshes with the rack 9 to drive the guide plate 4 to move. The movement of the guide plate 4 causes the connecting rod 15, the magnetic chuck 6 and the heat sink 36 to rotate. When the guide plate 4 moves, the connecting rod 20 and the guide roller 11 slide in the guide groove 7 to provide guidance and support. This ensures that the edge of the heat sink 36 is always kept between the first welding machine 16 and the second welding machine 18 during rotation. This avoids the need to rotate the heat sink 36 to weld the other side after welding one side of the heat sink 36, thus improving work efficiency.

[0047] Simultaneously, the cylinder 17 is activated, causing the second roller welding machine 18 to descend. This causes the water outlet pipe 25 to slide within the connecting pipe 24 via the connecting plate 26, ensuring that the water outlet pipe 25 remains in contact with the welding area of ​​the second roller welding machine 18. At the same time, the water pump 21 is activated to draw water from the collection tank 20 and transmit it through the L-shaped water pipe 22, U-shaped water pipe 23, and connecting pipe 24 to the water outlet pipe 25. The water is then discharged through the water outlet pipe 25, which cools down the welding process between the first roller welding machine 16 and the second roller welding machine 18, preventing the heat sink 36 from overheating or deforming during welding, thus affecting its performance.

[0048] During the welding spraying process, the water flow first flows to the surface of the guide plate 4 by gravity. It is then guided downward by the first guide angle 31 and enters the groove 2 through the second guide angle 32. It then enters the collection tank 20 through the water channel 33 to collect the wastewater. When the wastewater enters the collection tank 20, it first passes through the filter screen 29 to be filtered. The filtered water can be pumped out of the collection tank 20 by the water pump 21 for recycling, which can reduce the waste of water resources. When it is necessary to change the water, the drain outlet 35 is opened to drain the water in the collection tank 20, and then new water is added to the collection tank 20 through the water inlet 34.

[0049] 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.

[0050] 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 welding device for heat sinks, comprising a workbench (1), characterized in that: The workbench (1) has a groove (2) in the middle of its top. A support rod (3) is provided on the top of the groove (2). A guide plate (4) is fixedly connected to the top of the support rod (3). Connecting rods (5) are fixedly connected to the top two sides of the guide plate (4). Magnetic chucks (6) are installed at the ends of the two connecting rods (5) away from the guide plate (4). Heat sinks (36) are installed at the ends of the magnetic chucks (6) away from the connecting rods (5). A guide groove (7) is provided inside the guide plate (4). An output groove (8) is provided on the side of the guide plate (4) away from the guide groove (7). A rack (9) is installed on the top side of the workbench (1), and a connecting rod (10) is fixedly connected to the top side of the workbench (1). The connecting rod (10) passes through the guide plate (4) and is slidably connected. A guide roller (11) is rotatably connected to the outer wall of the connecting rod (10), and the guide roller (11) slides in the guide groove (7). A motor (12) is installed on the bottom side of the workbench (1). A rotating rod (13) is rotatably connected to the output end of the motor (12). A gear (14) is fixedly connected to the rotating rod (13) through the outer wall of the workbench (1), and the gear (14) rotates in the output groove (8) and meshes with the rack (9).

2. The welding equipment for heat sinks according to claim 1, characterized in that: An L-shaped mounting plate (15) is fixedly connected to the top of the workbench (1) near the side of the connecting rod 2 (10). A first roller welding machine (16) is installed on the top of the workbench (1) between the connecting rod 2 (10) and the L-shaped mounting plate (15). A cylinder (17) is installed on the top of the L-shaped mounting plate (15). The output end of the cylinder (17) passes through the L-shaped mounting plate (15) and is fixedly connected to the second roller welding machine (18).

3. The welding equipment for heat sinks according to claim 1, characterized in that: A collection box (20) is installed at the bottom of the workbench (1). A water pump (21) is installed on one side of the collection box (20). An L-shaped water pipe (22) is installed on the side of the water pump (21) away from the collection box (20). A U-shaped water pipe (23) is installed on the side of the L-shaped water pipe (22) away from the water pump (21). The U-shaped water pipe (23) is located at the top of the L-shaped mounting plate (15). A connecting pipe (24) is fixedly connected to the side of the U-shaped water pipe (23) away from the L-shaped water pipe (22). The connecting pipe (24) passes through the L-shaped mounting plate (15). A water outlet pipe (25) is slidably connected through the inside of the connecting pipe (24).

4. The welding equipment for heat sinks according to claim 3, characterized in that: A connecting plate (26) is fixedly connected to the outer wall of the water outlet pipe (25), and the end of the connecting plate (26) away from the water outlet pipe (25) is fixedly connected to the output end of the cylinder (17).

5. The welding equipment for heat sinks according to claim 2, characterized in that: The L-shaped mounting plate (15) is equipped with telescopic rods (19) on both sides between the two roller welding machines (18), and the end of the telescopic rod (19) away from the L-shaped mounting plate (15) is fixedly connected to the two roller welding machines (18).

6. The welding equipment for heat sinks according to claim 1, characterized in that: The top edge of the guide plate (4) is provided with a guide angle (31), through which the water sprayed by the connecting pipe (24) can be guided into the groove (2).

7. The welding equipment for heat sinks according to claim 1, characterized in that: The top edge of the groove (2) is provided with a guide angle 2 (32), and the interior of the groove (2) is provided with multiple water channels (33), which are matched with the collection box (20).

8. The welding equipment for heat sinks according to claim 1, characterized in that: A U-shaped baffle (30) is fixedly connected to one side edge of the top of the workbench (1) to block the water flow sprayed down from the connecting pipe (24).

9. The welding equipment for heat sinks according to claim 3, characterized in that: The inside of the collection box (20) is provided with a filter groove (27) through one side. A filter frame (28) is slidably connected inside the filter groove (27). A filter screen (29) is provided through and fixedly connected inside the filter frame (28).

10. The welding equipment for heat sinks according to claim 3, characterized in that: The collection box (20) has a water inlet (34) on the side away from the filter frame (28), and a drain outlet (35) is provided on the lower part of the collection box (20) near the water inlet (34).