Automatic clamping anti-deviation welding fixing device for fin welding

Abstract

The application discloses a kind of automatic clamping anti-deviation welding fixing devices for fin welding, it is related to fin welding technical field, including two bases, the first hydraulic cylinder is installed in the top of top plate, the fixed plate is fixedly connected in the bottom of connecting plate, the guide plate is fixedly connected in the both sides of fixed plate, the sliding plate is slidably connected in the both sides of guide plate, the guide rail is fixedly connected in the both sides of sliding plate, the fixed shaft is fixedly connected in the bottom of guide rail, the sliding block is slidably connected in the inside of guide rail, the support shaft is fixedly connected in the bottom of sliding block, the moving plate is fixedly connected in the bottom of fixed shaft and multiple support shafts, the clamping plate is fixedly connected in the bottom of multiple moving plates, this automatic clamping anti-deviation welding fixing device for fin welding is flexibly adapted to the fin mounting position of different specifications of radiator, significantly improve the versatility and adjustment efficiency of device.

Description

Technical Field

[0001] This invention relates to the field of heat sink welding technology, specifically to an automatic clamping and anti-displacement welding fixing device for heat sink welding. Background Technology

[0002] Heat sinks are widely used heat exchange devices in power equipment such as oil-immersed transformers, and their welding quality directly affects the heat dissipation performance and service life of the equipment. During the manufacturing process, multiple heat sink units need to be precisely welded and fixed to the oil collection pipes. Reinforcing ribs also need to be welded between the heat sinks to ensure the overall structural strength and prevent deformation during use.

[0003] Existing fixing devices for heat sink welding mostly only clamp and position individual heat sinks. However, heat sink welding involves multiple connections between multiple heat sink units and oil collection pipes, and the spacing between heat sinks varies depending on the size of the radiator, requiring flexible adjustment according to product specifications. Furthermore, existing devices often struggle to ensure that multiple heat sinks maintain equidistant alignment and stable position during welding, easily leading to misalignment and affecting the connection quality between the heat sink and the oil collection pipe, thus impacting the overall oil flow and heat dissipation effect of the radiator. After welding, the placement and welding of reinforcing ribs still typically require manual assistance, resulting in low automation and a need to improve production efficiency.

[0004] In the prior art, Chinese Patent No. CN116871798B discloses a welding device for a plate-type radiator, relating to the field of welding technology. This plate-type radiator welding device includes a base, a bracket, a top-pressing assembly, and a welding assembly. The upper surface of the bracket has multiple slots for accommodating heat dissipation units. Two top-pressing assemblies are positioned opposite each other on both sides of the bracket to support and limit the oil collection pipe. The welding assembly includes a support beam, two welding mechanisms, and a second driving mechanism, capable of spot-welding multiple heat dissipation units onto the oil collection pipe at equal intervals. The assembly also enables automatic feeding and welding of the ribs. The aforementioned patent mainly uses equally spaced slots on the bracket to position the heat dissipation unit and two welding mechanisms to weld the oil collection pipes on both sides. This enables automatic positioning and welding of the heat dissipation unit and the oil collection pipe. However, the clamping method relies on the fixed spacing of the slots to position heat sinks of different specifications. When the spacing of the heat sink is adjusted, different specifications of brackets need to be replaced, which reduces the applicability. Furthermore, it is difficult to flexibly adjust the spacing of the heat sink according to actual needs before welding, limiting the adaptability to heat sinks of different specifications. Summary of the Invention

[0005] The purpose of this invention is to provide an automatic clamping and anti-displacement welding fixing device for heat sink welding, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an automatic clamping and anti-deviation welding fixing device for heat sink welding, comprising two bases, a horizontal plate fixedly connected to the top of the two bases, side plates fixedly connected to both ends of the top of the horizontal plate, a top plate fixedly connected to the top of the two side plates, a first hydraulic cylinder mounted on the top of the top plate, the output end of the first hydraulic cylinder penetrating the top plate and slidably connected to the top plate, a connecting plate fixedly connected to the bottom end of the output end of the first hydraulic cylinder, a fixing plate fixedly connected to the bottom of the connecting plate, guide plates fixedly connected to both sides of the fixing plate, sliding plates slidably connected inside the guide plates on both sides, guide rails fixedly connected to the outer sides of the two sliding plates, a fixing shaft fixedly connected to one end of the bottom of the guide rail, multiple sliders slidably connected inside the guide rail, a sliding groove opened at the bottom of the guide rail, multiple sliders penetrating the sliding groove and slidably connected to the sliding groove, a support shaft fixedly connected to the bottom of the multiple sliders, a moving plate fixedly connected to the bottom of the fixing shaft and the multiple support shafts, a clamping plate fixedly connected to the bottom of the multiple moving plates, and multiple clamping plates located at the bottom of the guide rails on both sides being staggered and oppositely arranged.

[0007] Preferably, a fixed block is fixedly connected to one end of the guide rail, a first threaded rod is rotatably connected to the inside of the guide rail, and a movable block is slidably connected to one end of the guide rail. The first threaded rod passes through the movable block and is threadedly connected to it. The bottom of the movable block is fixedly connected to the top of a support shaft located away from the fixed shaft. A third motor is fixedly connected to one end of the guide rail, and the output end of the third motor is fixedly connected to one end of the first threaded rod, so that the third motor starts and drives the first threaded rod to rotate, thereby causing the first threaded rod to move the movable block.

[0008] Preferably, a first swing arm is rotatably connected to the outside of the fixed shaft, a second swing arm is rotatably connected to the outside of the support shaft at the bottom of the moving block, and connecting rods are rotatably connected to the outside of the remaining multiple support shafts. One end of the connecting rod located on one side of the second swing arm is hinged to the second swing arm, and one end of the connecting rod located on one side of the first swing arm is hinged to the connecting rod. The remaining multiple connecting rods are hinged end to end in sequence, so that when the second swing arm moves, it pulls multiple connecting rods to deflect. And because the ends of the multiple connecting rods are hinged, the multiple support shafts can move at equal distances, thereby driving multiple moving plates and clamping plates to adjust at equal distances.

[0009] Preferably, a limiting plate is fixedly connected to the bottom of the fixed plate, and a limiting groove is opened on the top of each of the multiple movable plates. The multiple limiting grooves are slidably connected to the outer side of the bottom of the limiting plate to limit and guide the multiple movable plates, thereby improving the stability of the clamping plate when moving.

[0010] Preferably, a fixing rod is fixedly connected to the top of the fixing plate, and a guide gear is rotatably connected to the outside of the fixing rod. Guide gears are fixedly connected to the top of both guide rails, and toothed plates are fixedly connected to opposite sides of both guide gears. The two toothed plates are respectively meshed with the two sides of the guide gears. A second hydraulic cylinder is fixedly connected to one side of the fixing plate, and the output end of the second hydraulic cylinder is fixedly connected to the L-shaped plate. The second hydraulic cylinder is activated to drive the L-shaped plate to move, and the movement of the L-shaped plate and the toothed plates drives the guide gears to rotate. This causes the L-shaped plates on both sides to drive the guide rails on both sides to move in opposite directions, thereby driving multiple clamping plates to move relative to each other and clamping and fixing multiple heat sinks for easy welding.

[0011] Preferably, a support plate is fixedly connected to both sides of the top of the fixed plate, and a guide rod is fixedly connected to both sides of the top of the two support plates. All four guide rods penetrate the top plate and are slidably connected to the top plate to limit and guide the top plate.

[0012] Preferably, a first lead screw is rotatably connected between the two side plates. The threads at both ends of the two first lead screws are set in opposite directions. A movable seat is threadedly connected to the outer side of each end of the first lead screw. A support sleeve is fixedly connected to the top of each of the two movable seats. A second threaded rod is threadedly connected to the top of each of the two support sleeves. A pressure block is slidably connected inside each of the two support sleeves. The bottom ends of the two second threaded rods are rotatably connected to the two pressure blocks respectively. A protective cover is fixedly connected to the opposite side of each of the two pressure blocks. One of the protective covers is slidably connected to the outside of the other protective cover to adjust the position of the pressure block and fix the pipe.

[0013] Preferably, limit blocks are fixedly connected to both sides of the pressure block, and the two limit blocks respectively penetrate through the two side walls of the support sleeve and are slidably connected to the support sleeve. Pressure rods are fixedly connected to both sides of the two pressure blocks, guide blocks are fixedly connected to the bottom of the two movable seats, slide rails are fixedly connected to the top of the cross plate, and the two guide blocks are slidably connected to the two ends inside the slide rails. A first motor is fixedly connected to one side of one of the side plates, and the output end of the first motor is fixedly connected to the first lead screw, so that the first motor starts and drives the first lead screw to rotate, and adjusts the movable seats on both sides to adapt to the pipe length.

[0014] Preferably, support blocks are fixedly connected to both ends of one side of the horizontal plate, and a second lead screw is rotatably connected between the two support blocks. A second motor is fixedly connected to one side of the support block, and the output end of the second motor is fixedly connected to the second lead screw. A movable box is threadedly connected to the outside of the second lead screw. The movable box is slidably connected to one side of the horizontal plate, and a support rod is fixedly connected to the top of the movable box. A bent rod is hinged to the top of the support rod, and an installation groove is opened on the top of the bent rod. A guide wire sleeve is embedded in the installation groove on the top of the bent rod. The guide wire sleeve is connected to the rear end of the welding head of the bent rod to support and guide the guide wire sleeve, which facilitates welding.

[0015] Preferably, a lower hinge plate is fixedly connected to one side of the support rod, a third hydraulic cylinder is hinged to the top of the lower hinge plate, a hinge block is fixedly connected to the output end of the third hydraulic cylinder, an upper hinge plate is fixedly connected to the bottom of the bent rod, and the hinge block is hinged to the upper hinge plate to control the deflection of the bent rod, which facilitates the welding of pipes and heat sinks.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] 1. This application sets up a third motor to drive the first threaded rod to rotate, thereby causing the moving block to move horizontally. By utilizing the linkage of the first swing rod, the second swing rod, and multiple connecting rods with hinged ends, multiple support shafts and corresponding moving plates and clamps can be adjusted at equal intervals, thereby flexibly adapting to the installation position of heat sinks of different specifications of radiators, significantly improving the versatility and adjustment efficiency of the device.

[0018] 2. This application uses a second hydraulic cylinder to push the L-shaped plate to move. Through the transmission of guide gears and toothed plates, the guide rails on both sides drive multiple staggered clamping plates to move synchronously relative to each other, thereby achieving rapid clamping and fixing of multiple heat sinks. This effectively prevents the heat sinks from shifting during the welding process, ensures accurate welding position, and improves welding quality.

[0019] 3. This application uses a second motor to drive the second lead screw to rotate, which in turn moves the moving box and support rod along the horizontal plate. In conjunction with the third hydraulic cylinder to control the deflection of the bending rod, the guide wire sleeve and welding head can be accurately moved to the connection between the heat sink and the pipe for welding. This enables automatic welding of multiple heat sinks one by one, reducing the difficulty of manual operation and improving welding consistency and production efficiency. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 This is a schematic diagram of the top plate of the present invention;

[0022] Figure 3 This is a schematic diagram of the connecting plate of the present invention;

[0023] Figure 4 This is a schematic diagram of the guide gear of the present invention;

[0024] Figure 5 This is a schematic diagram of the guide rail structure of the present invention;

[0025] Figure 6 This is a schematic diagram of the structure of the limiting plate of the present invention;

[0026] Figure 7 This is a schematic diagram of the structure of the fixing plate of the present invention;

[0027] Figure 8 This is a schematic diagram of the structure of the skateboard of the present invention;

[0028] Figure 9 This is a schematic diagram of the slider of the present invention;

[0029] Figure 10 This is a schematic diagram of the structure of the clamping plate of the present invention;

[0030] Figure 11 This is a schematic diagram of the structure of the first pendulum rod of the present invention;

[0031] Figure 12 This is a schematic diagram of the structure of the movable plate of the present invention;

[0032] Figure 13 This is a schematic diagram of the structure of the protective cover of the present invention;

[0033] Figure 14 This is a schematic diagram of the structure of the bent rod of the present invention;

[0034] Figure 15 This is a schematic diagram of the support sleeve of the present invention.

[0035] The following are the labeling elements in the diagram: 1. Base; 2. Horizontal plate; 3. Side plate; 4. Top plate; 5. First hydraulic cylinder; 6. Connecting plate; 7. Fixing plate; 8. Guide plate; 9. Slide plate; 10. Guide rail; 11. Fixed shaft; 12. Slider; 13. Slide groove; 14. First rocker arm; 15. Connecting rod; 16. Support shaft; 17. Second rocker arm; 18. Fixing block; 19. Moving block; 20. First threaded rod; 21. Moving plate; 22. Clamping plate; 23. Limiting groove; 24. Limiting plate; 25. Fixing rod; 26. Guide gear; 27. Gear plate; 28. L-shaped plate; 29. Second hydraulic cylinder; 30. Guide rod; 31. Support plate; 32. First lead screw; 33. Moving seat; 34. Support sleeve; 35. Second threaded rod; 36. Pressure block; 37. Pressure rod; 38. Limiting block; 39. Guide block; 40. Slide rail; 41. Protective cover; 42. First motor; 43. Support block; 44. Second lead screw; 45. Moving box; 46. Support rod; 47. Bend rod; 48. Guide thread sleeve; 49. Third hydraulic cylinder; 50. Upper hinge plate; 51. Hinge block; 52. Lower hinge plate; 53. Second motor; 54. Third motor. Detailed Implementation

[0036] 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.

[0037] Example: Figures 1-15 As shown, this invention provides a technical solution for an automatic clamping and anti-displacement welding fixing device for heat sink welding, comprising two bases 1, with a horizontal plate 2 fixedly connected to the top of the two bases 1, and side plates 3 fixedly connected to both ends of the top of the horizontal plate 2, and a top plate 4 fixedly connected to the top of the two side plates 3, with a first hydraulic cylinder 5 mounted on the top of the top plate 4, the output end of the first hydraulic cylinder 5 penetrating through the top plate 4 and slidably connected to the top plate 4, a connecting plate 6 fixedly connected to the bottom of the output end of the first hydraulic cylinder 5, a fixing plate 7 fixedly connected to the bottom of the connecting plate 6, and guide plates 8 fixedly connected to both sides of the fixing plate 7, with the guide plates 8 sliding inside. The slide plate 9 is connected to the outside of both slide plates 9. Guide rails 10 are fixedly connected to the outside of both slide plates 9. A fixed shaft 11 is fixedly connected to one end of the bottom of the guide rail 10. Multiple sliders 12 are slidably connected inside the guide rail 10. A groove 13 is opened at the bottom of the guide rail 10. Multiple sliders 12 pass through the groove 13 and are slidably connected to the groove 13. Support shafts 16 are fixedly connected to the bottom of each slider 12. Movable plates 21 are fixedly connected to the bottom of the fixed shaft 11 and the multiple support shafts 16. Clamping plates 22 are fixedly connected to the bottom of each movable plate 21. The multiple clamping plates 22 located at the bottom of the guide rails 10 on both sides are staggered and opposite to each other.

[0038] A fixed block 18 is fixedly connected to one end of the guide rail 10. A first threaded rod 20 is rotatably connected to the inside of the guide rail 10. A movable block 19 is slidably connected to one end of the guide rail 10. The first threaded rod 20 passes through the movable block 19 and is threadedly connected to the movable block 19. The bottom of the movable block 19 is fixedly connected to the top of the support shaft 16 located at the end away from the fixed shaft 11. A third motor 54 is fixedly connected to one end of the guide rail 10. The output end of the third motor 54 is fixedly connected to one end of the first threaded rod 20, so that the third motor 54 starts and drives the first threaded rod 20 to rotate, so that the first threaded rod 20 drives the movable block 19 to move.

[0039] A first swing arm 14 is rotatably connected to the outside of the fixed shaft 11. A second swing arm 17 is rotatably connected to the outside of the support shaft 16 at the bottom of the moving block 19. Connecting rods 15 are rotatably connected to the outside of the remaining support shafts 16. One end of the connecting rod 15 located on one side of the second swing arm 17 is hinged to the second swing arm 17, and one end of the connecting rod 15 located on one side of the first swing arm 14 is hinged to the connecting rod 15. The remaining connecting rods 15 are hinged end to end in sequence, so that the second swing arm 17 pulls the multiple connecting rods 15 to deflect when it moves. Because the multiple connecting rods 15 are hinged end to end, the multiple support shafts 16 can move at equal distances, thereby driving the multiple moving plates 21 and clamping plates 22 to adjust at equal distances. A limiting plate 24 is fixedly connected to the bottom of the fixed plate 7. Each of the multiple moving plates 21 has a limiting groove 23 on its top. The multiple limiting grooves 23 are slidably connected to the outside of the bottom of the limiting plate 24 to limit and guide the multiple moving plates 21 and improve the stability of the clamping plate 22 when it moves.

[0040] A fixing rod 25 is fixedly connected to the top of the fixing plate 7. A guide gear 26 is rotatably connected to the outside of the fixing rod 25. A guide gear 26 is fixedly connected to the top of each of the two guide rails 10. A toothed plate 27 is fixedly connected to the opposite side of each of the two guide gears 26. The two toothed plates 27 are respectively meshed with the two sides of the guide gear 26. A second hydraulic cylinder 29 is fixedly connected to one side of the fixing plate 7. The output end of the second hydraulic cylinder 29 is fixedly connected to the L-shaped plate 28. The second hydraulic cylinder 29 is activated to drive the L-shaped plate 28 to move. The L-shaped plate 28 and the toothed plate 27 move to drive the guide gear 26 to rotate. This causes the L-shaped plates 28 on both sides to drive the guide rails 10 on both sides to move in opposite directions. This causes multiple clamping plates 22 to move relative to each other, clamping and fixing multiple heat sinks for easy welding. Support plates 31 are fixedly connected to both sides of the top of the fixing plate 7. Guide rods 30 are fixedly connected to both sides of the top of the two support plates 31. All four guide rods 30 pass through the top plate 4 and slide to the top plate 4 to limit and guide the top plate 4.

[0041] A first lead screw 32 is rotatably connected between the two side plates 3. The threads at both ends of the two first lead screws 32 are set in opposite directions. A movable seat 33 is threaded to the outer side of both ends of the first lead screw 32. A support sleeve 34 is fixedly connected to the top of each of the two movable seats 33. A second threaded rod 35 is threaded to the top of each of the two support sleeves 34. A pressure block 36 is slidably connected inside each of the two support sleeves 34. The bottom ends of the two second threaded rods 35 are rotatably connected to the two pressure blocks 36 respectively. A protective cover 41 is fixedly connected to the opposite side of each of the two pressure blocks 36. One protective cover 41 is slidably connected to the outside of the other protective cover 41 to adjust the position of the pressure block 36 so that the pressure block 36 is aligned with the tube. The pipe is fixed, and limit blocks 38 are fixedly connected to both sides of the pressure block 36. The two limit blocks 38 pass through the two side walls of the support sleeve 34 and are slidably connected to the support sleeve 34. Pressure rods 37 are fixedly connected to both sides of the two pressure blocks 36. Guide blocks 39 are fixedly connected to the bottom of the two movable seats 33. A slide rail 40 is fixedly connected to the top of the horizontal plate 2. The two guide blocks 39 are slidably connected to the two ends inside the slide rail 40. A first motor 42 is fixedly connected to one side of one of the side plates 3. The output end of the first motor 42 is fixedly connected to the first lead screw 32, so that the first motor 42 starts and drives the first lead screw 32 to rotate, and adjusts the movable seats 33 on both sides to adapt to the pipe length.

[0042] Support blocks 43 are fixedly connected to both ends of one side of the horizontal plate 2. A second lead screw 44 is rotatably connected between the two support blocks 43. A second motor 53 is fixedly connected to one side of the support blocks 43. The output end of the second motor 53 is fixedly connected to the second lead screw 44. A movable box 45 is threaded to the outside of the second lead screw 44. The movable box 45 is slidably connected to one side of the horizontal plate 2. A support rod 46 is fixedly connected to the top of the movable box 45. A bent rod 47 is hinged to the top of the support rod 46. An installation groove is opened on the top of the bent rod 47. The top of the bent rod 47 is fitted with a mounting groove. A guide sleeve 48 is embedded inside the groove. The guide sleeve 48 is connected to the rear end of the welding head of the bent rod 47 to support and guide the guide sleeve 48, which facilitates welding. A lower hinge plate 52 is fixedly connected to one side of the support rod 46. A third hydraulic cylinder 49 is hinged to the top of the lower hinge plate 52. A hinge block 51 is fixedly connected to the output end of the third hydraulic cylinder 49. An upper hinge plate 50 is fixedly connected to the bottom of the bent rod 47. The hinge block 51 is hinged to the upper hinge plate 50 to control the deflection of the bent rod 47, which facilitates welding of pipes and heat sinks.

[0043] In operation, the first motor 42 drives the first lead screw 32 to rotate, which in turn moves the two movable seats 33 on both sides relative to each other. The positions of the two movable seats 33 are adjusted to fit the length of the pipe. After adjustment, the pipe is placed inside the two support sleeves 34, and the second threaded rod 35 is manually turned downwards. This moves the pressure block 36 downwards, causing the pressure rods 37 on both sides to press down, securing the pipe inside the support sleeves 34. When the pressure block 36 slides, it guides and limits the limiting blocks 38 on both sides, improving its stability. The second hydraulic cylinder 29 pushes the L-shaped plate 28 to move. Through the guide gear 26 and toothed plate 27, the guide rails 10 on both sides drive multiple staggered clamping plates 22 to move synchronously relative to each other, achieving rapid clamping and fixing of multiple heat sinks. This effectively prevents the heat sinks from shifting during welding, ensuring accurate welding positions and improving welding quality.

[0044] After the pipe is fixed, the third motor 54 is started to drive the first threaded rod 20 to rotate. The rotation of the first threaded rod 20 causes the moving block 19 to move horizontally. The movement of the moving block 19 causes the bottom-fixed slider 12 and support shaft 16 to move, thereby moving the second swing rod 17. When the second swing rod 17 moves, it pulls the connecting rod 15 connected to it to deflect. Since the other connecting rods 15 are limited by the multiple support shafts 16, the multiple connecting rods 15 simultaneously push the multiple support shafts 16 to move when they deflect, causing the multiple moving plates 21 to slide inside the guide rail 10, thereby adjusting the spacing between the multiple moving plates 21, and further causing the multiple clamping plates 22 to move. The multiple clamping plates 22 are adjusted at equal intervals to adapt to the installation position of heat sink fins of different specifications of radiators. Then, the second hydraulic cylinder 29 is activated, which pushes the L-shaped plate 28 to move. When the L-shaped plate 28 moves, it drives the guide gear 26 to rotate. When the guide gear 26 rotates, it drives the L-shaped plates 28 on both sides to move in opposite directions, thereby driving the guide rails 10 on both sides to move relative to each other. The guide rails 10 on both sides drive the multiple clamping plates 22 to move relative to each other, so that the multiple clamping plates 22 clamp and fix the multiple heat sink fins. The first hydraulic cylinder 5 drives the connecting plate 6 to descend, and drives the guide rails 10 on both sides to descend, so that the multiple heat sink fins fit into the pipes, thereby improving the stability of the heat sink welding.

[0045] By setting a third motor 54 to drive the first threaded rod 20 to rotate, the moving block 19 moves horizontally. By using the linkage of the first swing rod 14, the second swing rod 17 and multiple connecting rods 15 with hinged ends, the spacing of multiple support shafts 16 and corresponding moving plates 21 and clamping plates 22 can be adjusted at equal intervals, thereby flexibly adapting to the installation position of heat sinks of different specifications of radiators, significantly improving the versatility and adjustment efficiency of the device.

[0046] The second motor 53 drives the second lead screw 44 to rotate, which in turn moves the moving box 45. This movement of the moving box 45 then moves the support rod 46 to the heat sink position. The third hydraulic cylinder 49 then lowers the hinge block 51, which in turn lowers the upper hinge plate 50 and the bent rod 47. The bent rod 47 then moves the welding head to the connection point between the heat sink and the pipe for welding. The rear end of the wire guide sleeve 48 connects to the external welding machine's wire feeding device, allowing for the individual welding and fixing of multiple heat sinks. The second motor 53 drives the second lead screw 44 to rotate, moving the moving box 45 and the support rod 46 along the horizontal plate 2. The third hydraulic cylinder 49 controls the deflection of the bent rod 47, enabling the wire guide sleeve 48 and the welding head to precisely move to the connection point between the heat sink and the pipe for welding. This achieves automated welding of multiple heat sinks, reducing manual operation difficulty and improving welding consistency and production efficiency.

[0047] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. An automatic clamping and anti-displacement welding fixing device for heat sink welding, comprising two bases (1), a horizontal plate (2) fixedly connected to the top of the two bases (1), side plates (3) fixedly connected to both ends of the top of the horizontal plate (2), and a top plate (4) fixedly connected to the top of the two side plates (3), characterized in that: A first hydraulic cylinder (5) is installed on the top of the top plate (4). The output end of the first hydraulic cylinder (5) passes through the top plate (4) and is slidably connected to the top plate (4). A connecting plate (6) is fixedly connected to the bottom of the output end of the first hydraulic cylinder (5). A fixing plate (7) is fixedly connected to the bottom of the connecting plate (6). Guide plates (8) are fixedly connected to both sides of the fixing plate (7). Slide plates (9) are slidably connected inside the guide plates (8) on both sides. Guide rails (10) are fixedly connected to the outer sides of the two slide plates (9). A fixing shaft (11) is fixedly connected to one end of the bottom of the guide rail (10). The guide rail (10) has multiple sliders (12) slidably connected inside. The guide rail (10) has a groove (13) at the bottom. The multiple sliders (12) pass through the groove (13) and are slidably connected to the groove (13). The bottom of the multiple sliders (12) is fixedly connected to a support shaft (16). The bottom of the fixed shaft (11) and the multiple support shafts (16) are fixedly connected to a moving plate (21). The bottom of the multiple moving plates (21) is fixedly connected to a clamping plate (22). The multiple clamping plates (22) located at the bottom of the guide rail (10) on both sides are staggered and opposite to each other.

2. The welding fixing device for automatically clamping and preventing offset during heat sink welding according to claim 1, characterized in that: A fixed block (18) is fixedly connected to one end of the guide rail (10). A first threaded rod (20) is rotatably connected inside the guide rail (10). A moving block (19) is slidably connected to one end of the guide rail (10). The first threaded rod (20) passes through the moving block (19) and is threadedly connected to the moving block (19). The bottom of the moving block (19) is fixedly connected to the top of the support shaft (16) located at the end away from the fixed shaft (11). A third motor (54) is fixedly connected to one end of the guide rail (10). The output end of the third motor (54) is fixedly connected to one end of the first threaded rod (20).

3. The welding fixing device for automatically clamping and preventing displacement for welding heat sinks according to claim 2, characterized in that: The fixed shaft (11) is rotatably connected to the outside of the first swing rod (14), the support shaft (16) at the bottom of the moving block (19) is rotatably connected to the outside of the second swing rod (17), and the other multiple support shafts (16) are rotatably connected to the outside of the connecting rods (15). One end of the connecting rod (15) located on the side of the second swing rod (17) is hinged to the second swing rod (17), and one end of the connecting rod (15) located on the side of the first swing rod (14) is hinged to the connecting rod (15). The other multiple connecting rods (15) are hinged end to end in sequence.

4. The welding fixing device for automatically clamping and preventing displacement for welding heat sinks according to claim 1, characterized in that: The bottom of the fixed plate (7) is fixedly connected to the limiting plate (24), and the top of the multiple moving plates (21) are provided with limiting grooves (23), and the multiple limiting grooves (23) are slidably connected to the outer side of the bottom of the limiting plate (24).

5. The welding fixing device for automatically clamping and preventing offset during heat sink welding according to claim 1, characterized in that: A fixing rod (25) is fixedly connected to the top of the fixing plate (7). A guide gear (26) is rotatably connected to the outside of the fixing rod (25). A guide gear (26) is fixedly connected to the top of each of the two guide rails (10). A toothed plate (27) is fixedly connected to the opposite side of each of the two guide gears (26). The two toothed plates (27) are respectively meshed and connected to both sides of the guide gear (26). A second hydraulic cylinder (29) is fixedly connected to one side of the fixing plate (7). The output end of the second hydraulic cylinder (29) is fixedly connected to the L-shaped plate (28).

6. The welding fixing device for automatically clamping and preventing offset during heat sink welding according to claim 1, characterized in that: The top two sides of the fixed plate (7) are fixedly connected to the support plate (31), and the top two sides of the two support plates (31) are fixedly connected to the guide rod (30). The four guide rods (30) all penetrate the top plate (4) and are slidably connected to the top plate (4).

7. The welding fixing device for automatically clamping and preventing offset during heat sink welding according to claim 1, characterized in that: A first lead screw (32) is rotatably connected between the two side plates (3). The two first lead screws (32) have opposite thread directions at both ends. A movable seat (33) is threaded to the outer side of both ends of the first lead screw (32). A support sleeve (34) is fixedly connected to the top of each of the two movable seats (33). A second threaded rod (35) is threaded to the top of each of the two support sleeves (34). A pressure block (36) is slidably connected inside each of the two support sleeves (34). The bottom ends of the two second threaded rods (35) are rotatably connected to the two pressure blocks (36) respectively. A protective cover (41) is fixedly connected to the opposite side of each of the two pressure blocks (36). One of the protective covers (41) is slidably connected to the outside of the other protective cover (41).

8. The welding fixing device for automatically clamping and preventing offset during heat sink welding according to claim 7, characterized in that: Both sides of the pressure block (36) are fixedly connected to limit blocks (38). The two limit blocks (38) pass through the two side walls of the support sleeve (34) and are slidably connected to the support sleeve (34). Both sides of the two pressure blocks (36) are fixedly connected to pressure rods (37). The bottom of the two moving seats (33) is fixedly connected to guide blocks (39). The top of the horizontal plate (2) is fixedly connected to a slide rail (40). The two guide blocks (39) are slidably connected to the two ends inside the slide rail (40). One side plate (3) is fixedly connected to a first motor (42). The output end of the first motor (42) is fixedly connected to the first lead screw (32).

9. The welding fixing device for automatically clamping and preventing offset during heat sink welding according to claim 1, characterized in that: Support blocks (43) are fixedly connected to both ends of one side of the horizontal plate (2). A second lead screw (44) is rotatably connected between the two support blocks (43). A second motor (53) is fixedly connected to one side of the support block (43). The output end of the second motor (53) is fixedly connected to the second lead screw (44). A movable box (45) is threadedly connected to the outside of the second lead screw (44). The movable box (45) is slidably connected to one side of the horizontal plate (2). A support rod (46) is fixedly connected to the top of the movable box (45). A bent rod (47) is hinged to the top of the support rod (46). An installation groove is opened on the top of the bent rod (47). A guide wire sleeve (48) is embedded in the installation groove on the top of the bent rod (47). The guide wire sleeve (48) is connected to the rear end of the welding head of the bent rod (47).

10. The welding fixing device for automatically clamping and preventing displacement for welding heat sinks according to claim 9, characterized in that: A lower hinge plate (52) is fixedly connected to one side of the support rod (46), a third hydraulic cylinder (49) is hinged to the top of the lower hinge plate (52), a hinge block (51) is fixedly connected to the output end of the third hydraulic cylinder (49), an upper hinge plate (50) is fixedly connected to the bottom of the bent rod (47), and the hinge block (51) is hinged to the upper hinge plate (50).

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