Radiator welding device

Abstract

The invention provides a radiator welding device, which belongs to the technical field of welding devices, and comprises a welding part, two supporting plates, a positioning assembly fixedly connected between the two supporting plates, a power assembly mounted on the supporting plate close to the right end of the positioning assembly, and a first clamping assembly mounted on the driving assembly, the arc-shaped welding mechanism is composed of an incomplete annular rod, a gear transmission set and a rotating plate, and a motor is used for driving a welding head to do precise circular motion along the axis of an oil collecting pipe; the effects that the welding gun can enter gaps of the cooling fins without hindrance and continuous surrounding automatic welding of the arc-shaped connecting positions is completed are achieved, the technical problems that the welding gun cannot stretch into the gaps and welding seams are discontinuous due to narrow space in a traditional welding mode are fundamentally solved, and the integrity and the welding quality of the arc-shaped welding seams are ensured.

Description

Technical Field

[0001] This invention belongs to the field of welding equipment technology, and specifically relates to a radiator welding device. Background Technology

[0002] A finned radiator is a device used for heat dissipation, typically composed of multiple finned heat sinks. It improves heat dissipation by increasing the surface area. When welding the fins to the oil collection pipe, if the fins of different specifications have the same height and are relatively long, the spacing between each fin needs to be increased to fully utilize the limited surface area and improve heat dissipation efficiency. This ensures uniform heat dissipation on the longer fins while still meeting heat dissipation requirements. Conversely, if the fins of different specifications have the same height and are relatively short, the spacing between each fin will be reduced to increase the surface area and fully utilize the limited surface area to improve heat dissipation efficiency.

[0003] In current radiator manufacturing processes, heat sink fins and oil collection pipes are mostly connected by welding. However, due to the typically high-density arrangement of heat sink fins, the gaps between adjacent fins are extremely narrow, making it difficult for the welding torch to reach the arc-shaped area where the oil collection pipe connects to the heat sink fin. This physical space limitation not only makes welding operations extremely inconvenient but also causes process defects such as discontinuous weld formation and insufficient penetration depth at the arc-shaped connection, seriously affecting the mechanical strength and thermal conductivity of the heat dissipation structure, becoming a technical bottleneck restricting the improvement of radiator product reliability and service life. Summary of the Invention

[0004] The purpose of this invention is to provide a radiator welding device that addresses the problems mentioned in the background section.

[0005] To achieve the above objectives, the present invention provides the following technical solution: A radiator welding device includes a welding component, comprising two support plates, a positioning component fixedly connected between the two support plates, a power component mounted on the support plate near the right end of the positioning component, a displacement component mounted between the two support plates, a welding component mounted on the displacement component, and a plurality of heat sinks inserted into the middle of the positioning component, with oil collection pipes mounted at both the upper and lower ends of the heat sinks. The clamping component includes a drive assembly mounted on a positioning assembly, a first clamping assembly mounted on the drive assembly, and a second clamping assembly mounted on the first clamping assembly.

[0006] In a preferred embodiment of the present invention, the positioning component includes a fixing rod fixedly connected to the inner surface of the support plate, a support frame symmetrically fixedly connected to the outer side of the fixing rod, a limit plate fixedly connected between the two support frames, and a placement frame fixedly connected to the outer side of the fixing rod.

[0007] In a preferred embodiment of the present invention, the displacement assembly includes a rotating plate rotatably connected to the inner surface of a support plate. A connecting rod is fixedly connected to one end of the rotating plate away from the support plate. A sliding groove is formed on the outer side of the connecting rod. A limit rod is fixedly connected inside the sliding groove. Mounting plates are symmetrically fixedly connected to the outer side of the connecting rod. A threaded rod is rotatably connected between the two mounting plates. A sliding block is threaded onto the outer side of the threaded rod. A second motor for driving the threaded rod to rotate is fixedly connected to the outer side of the mounting plate near the welding assembly.

[0008] In a preferred embodiment of the present invention, the power assembly includes a driven gear, a main gear, and a first motor. The driven gear is rotatably connected to the inner surface of the rotating plate, and the main gear is rotatably connected to the outer side of the fixed rod. The first motor is fixedly connected to the surface of the support plate near the right side of the positioning assembly. The output end of the first motor is fixedly connected to a small gear. Both driven gears are meshed and driven by the main gear, and the main gear is meshed and driven by the small gear.

[0009] In a preferred embodiment of the present invention, the welding assembly includes an incomplete annular rod fixedly connected to the surface of the sliding block, and a welding head is mounted on the incomplete annular rod.

[0010] As a preferred embodiment of the present invention, the inner surface of the limiting plate is provided with a plurality of insertion slots, and the heat sink is inserted into the inside of the insertion slots.

[0011] In a preferred embodiment of the present invention, the end of the sliding block away from the incomplete annular rod is slidably connected to the inner wall of the sliding groove, and the sliding block is slidably sleeved on the outside of the limiting rod.

[0012] In a preferred embodiment of the present invention, the driving assembly includes a fixed block fixedly connected to the bottom side of the outer side of the placement frame, a bidirectional lead screw rotatably connected between the two fixed blocks, a third motor for driving the bidirectional lead screw to rotate fixedly connected to the outer side of the fixed block near the left side of the positioning assembly, a sliding hole is provided on the fixed block, a movable plate is slidably connected inside the sliding hole, one end of the movable plate is threaded onto the outer side of the bidirectional lead screw, and the other end of the movable plate is fixedly connected to a vertical plate.

[0013] In a preferred embodiment of the present invention, the first clamping assembly includes a crossbar, a circular hole is provided on the outer side of the placement frame, the crossbar is slidably inserted into the inside of the circular hole, one end of the crossbar is fixedly connected to a vertical plate, the other end of the crossbar is fixedly connected to a sliding plate, a spring is fixedly connected to the surface of the sliding plate, and a first clamping plate is fixedly connected to the end of the spring away from the sliding plate.

[0014] As a preferred embodiment of the present invention, the second clamping assembly includes a vertical plate fixedly connected to the top of the slide plate, and a limit post is fixedly connected to the upper side of the inner surface of the vertical plate.

[0015] Compared with the prior art, the beneficial effects of the present invention are: 1. By using an arc-shaped welding mechanism consisting of an incomplete ring rod, a gear transmission group, and a rotating plate, the welding head is driven by a motor to make precise circular motion along the axis of the oil collection pipe. This achieves the effect of the welding torch being able to enter the gap of the heat sink without obstruction and complete the continuous and automated welding of the arc-shaped connection. This fundamentally solves the technical problem of the welding torch being unable to reach the gap and the weld being discontinuous due to the narrow space in the traditional welding method, and ensures the integrity of the arc-shaped weld and the welding quality.

[0016] 2. By using a three-point positioning system consisting of insertion slots and oil collection pipes, the equidistant insertion slots on the limiting plate and the lower oil collection pipes together form a stable support for the heat sink, achieving the effect of rapid, accurate, and equidistant positioning of the heat sink. This completely replaces manual alignment and positioning, providing a precise benchmark for subsequent automated welding.

[0017] 3. By using a lateral displacement system consisting of a two-way lead screw, a sliding block, and a threaded rod, the welding assembly is driven by a motor to move precisely in a linear motion within the sliding groove. This achieves the effect of automatic and precise switching of the welding head between different heat sink gaps, enabling continuous automated operation of all welding points on the heat sink by a single machine.

[0018] 4. The two-stage clamping mechanism, consisting of a bidirectional lead screw, a spring-return clamping plate, and a limiting post, uses the same power source to sequentially drive the lower oil collection pipe clamping and the upper oil collection pipe limiting, achieving synchronous and stable clamping and adaptive pressing of the upper and lower oil collection pipes. This effectively eliminates the risk of component displacement during welding and ensures the accuracy of welding alignment. Through the modular design of the drive and clamping components, a single third motor synchronously controls the bidirectional lead screw to complete the clamping and release of the oil collection pipe, achieving the effect of rapid overall clamping and unloading of the radiator, significantly improving the production cycle and the convenience of equipment operation. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Wherein: Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 For the present invention Figure 1 Another perspective structural diagram; Figure 3 This is a schematic diagram of the displacement component and welding component of the present invention; Figure 4 For the present invention Figure 1 A schematic diagram of the structure with a portion removed; Figure 5 For the present invention Figure 4 Enlarged schematic diagram of the structure of region A in the middle; Figure 6 This is a partial structural schematic diagram of the present invention; Figure 7 This is a top view of the present invention; Figure 8 This is a side view of the present invention; Figure 9 This is the front view of the present invention; Figure 10 This is a schematic diagram of the welding assembly of the present invention in the state of being rotated and welded to the right side of the oil collection pipe.

[0020] In the diagram: 10. Support plate; 11. Power assembly; 111. Driven gear; 112. Large gear; 113. Small gear; 114. First motor; 12. Positioning assembly; 121. Support frame; 122. Placement frame; 123. Fixing rod; 124. Limiting plate; 13. Welding assembly; 131. Incomplete annular rod; 132. Welding head; 14. Displacement assembly; 141. Rotating plate; 142. Connecting rod; 143. Second motor; 144. Mounting plate; 45. Sliding groove; 146. Limiting rod; 147. Sliding block; 148. Threaded rod; 15. Oil collection pipe; 16. Heat sink; 20. Drive assembly; 201. Two-way lead screw; 202. Fixing block; 203. Moving plate; 204. Third motor; 205. Vertical plate; 21. First clamping assembly; 211. Horizontal bar; 212. Slide plate; 213. Spring; 214. First clamping plate; 22. Second clamping assembly; 221. Vertical plate; 222. Limiting post. Detailed Implementation

[0021] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0022] Example 1

[0023] Reference Figure 1 and Figure 2This is the first embodiment of the present invention. This embodiment provides a radiator welding device, including a welding component, including two support plates 10, a positioning component 12 fixedly connected between the two support plates 10, a power component 11 installed on the support plate 10 near the right end of the positioning component 12, a displacement component 14 installed between the two support plates 10, a welding component 13 installed on the displacement component 14, and a plurality of heat sinks 16 inserted into the middle of the positioning component 12. Oil collection pipes 15 are installed at both the upper and lower ends of the heat sinks 16.

[0024] Reference Figure 4 The positioning component 12 includes a fixing rod 123 fixedly connected to the inner surface of the support plate 10. A support frame 121 is symmetrically fixedly connected to the outer side of the fixing rod 123. A limiting plate 124 is fixedly connected between the two support frames 121. Multiple insertion slots are opened on the inner surface of the limiting plate 124. The heat sink 16 is inserted into the inside of the insertion slot. The corresponding two insertion slots, together with the oil collection pipe 15 on the lower side, form a three-point limiting effect on the heat sink 16, which improves the stability of the heat sink 16 when it is placed and ensures the equidistant positioning of the heat sink 16. In this way, there is no need for manual equidistant positioning operation of the heat sink 16. A placement frame 122 is fixedly connected to the outer side of the fixing rod 123. The two ends of the oil collection pipe 15 on the lower side are located inside the two placement frames 122.

[0025] Reference Figure 3The displacement assembly 14 includes a rotating plate 141 rotatably connected to the inner surface of the support plate 10. A connecting rod 142 is fixedly connected to one end of the rotating plate 141 away from the support plate 10. A sliding groove 145 is formed on the outer side of the connecting rod 142. A limiting rod 146 is fixedly connected inside the sliding groove 145. Mounting plates 144 are symmetrically fixedly connected to the outer side of the connecting rod 142. A threaded rod 148 is rotatably connected between the two mounting plates 144. A sliding block 147 is threadedly sleeved on the outer side of the threaded rod 148. One end of the sliding block 147 away from the incomplete annular rod 131 is slidably connected to the inner wall of the sliding groove 145, and the sliding block 147 is slidably sleeved on the outer side of the limiting rod 146. A second motor 143 for driving the threaded rod 148 to rotate is fixedly connected to the outer side of the mounting plate 144 near the welding assembly 13. After the oil collection pipe 15 and the heat sink 16 are welded together... Then, the first motor 114 is reversed so that the welding head 132 rotates above the heat sink 16. Then, the second motor 143 is controlled to drive the threaded rod 148 to rotate. With the cooperation of the sliding groove 145 and the limiting rod 146, the sliding block 147 is limited so that the sliding block 147 moves, thereby driving the welding assembly 13 to move. The welding head 132 of the welding assembly 13 moves to correspond to the gap between the next two heat sinks 16. Then, the first motor 114 is controlled to rotate so that the welding head 132 rotates to weld the connection between the heat sink 16 and the oil collection pipe 15. This process is repeated until all the heat sinks 16 are welded to the oil collection pipe 15. The welding assembly 13 includes an incomplete annular rod 131 fixedly connected to the surface of the sliding block 147. The welding head 132 is installed on the incomplete annular rod 131.

[0026] Reference Figure 1 as well as Figure 7-10 The power assembly 11 includes a driven gear 111, a main gear, and a first motor 114. The driven gear 111 is rotatably connected to the inner surface of the rotating plate 141, and a large gear 112 is rotatably connected to the outer side of the fixed rod 123. The first motor 114 is fixedly connected to the surface of the support plate 10 near the right side of the positioning assembly 12. A small gear 113 is fixedly connected to the output end of the first motor 114. Both driven gears 111 are meshed with the large gear 112 for transmission, and the large gear 112 is meshed with the small gear 113 for transmission. The first motor 114 is controlled to work and drive the small gear 113 to rotate. The rotation of the small gear 113 drives the rotation of the large gear 112, which in turn drives the rotation of the two driven gears 111. This causes the two adjacent rotating plates 141 to rotate in opposite directions. The rotation of the rotating plates 141 then drives the connecting rod 142 to rotate, which in turn drives the incomplete annular rod 131 to rotate around the oil collection pipe 15. The rotation of the incomplete annular rod 131 then drives the welding head 132 to rotate between two adjacent heat sinks 16. This allows the welding head 132 to rotate around the center of the oil collection pipe 15 to weld the arc-shaped connection between the heat sink 16 and the oil collection pipe 15.

[0027] In use, the two ends of the oil collection pipe 15 are placed inside the two placement brackets 122. Then, the first clamping component 21 clamps and limits the two ends of the oil collection pipe 15 through the operation of the drive component 20. Then, multiple heat sinks 16 are inserted into the corresponding two insertion slots. The corresponding two insertion slots, together with the oil collection pipe 15 on the lower side, form a three-point limiting effect on the heat sink 16, which improves the stability of the heat sink 16 when it is placed and ensures the equidistant positioning of the heat sink 16. In this way, there is no need for manual equidistant positioning operation of the heat sink 16. Then, an oil collection pipe 15 is placed on the top of the heat sink 16. The control drive assembly 20 continues to work so that the second clamping assembly 22 clamps and limits the oil collection pipe 15 on the top. Then, the welding head 132 is made to work, and the first motor 114 is controlled to work to drive the pinion 113 to rotate. The rotation of the pinion 113 drives the large gear 112 to rotate. The rotation of the large gear 112 drives the two driven gears 111 to rotate, thereby driving the two adjacent rotating plates 141 to rotate in opposite directions. The rotation of the rotating plates 141 drives the connecting rod 142 to rotate, thereby driving the incomplete ring rod 131 to rotate around the oil collection pipe 15. The rotation of the incomplete ring rod 131 drives the welding head 132 to rotate between two adjacent heat sinks 16. In this way, the welding head 132 rotates around the center of the oil collection pipe 15 to automatically weld the arc-shaped connection between the heat sink 16 and the oil collection pipe 15. After the oil collection pipe 15 and the heat sink 16 are welded together, the first motor 114 is reversed so that the welding head 132 rotates above the heat sink 16. Then, the second motor 143 is controlled to drive the threaded rod 148 to rotate. With the cooperation of the sliding groove 145 and the limiting rod 146, the sliding block 147 is limited so that the sliding block 147 moves, thereby driving the welding assembly 13 to move. The welding head 132 of the welding assembly 13 moves to correspond to the gap between the next two heat sinks 16. Then, the first motor 114 is controlled to rotate so that the welding head 132 rotates to weld the connection between the heat sink 16 and the oil collection pipe 15. This process is repeated until all the heat sinks 16 are welded to the oil collection pipe 15. Finally, the third motor 204 of the control drive assembly 20 releases the limiting clamps on the two oil collection pipes 15. Then, the second motor 143 of the control displacement assembly 14 moves the welding assembly 13 to the right side of the oil collection pipe 15 to prevent the welding assembly 13 from blocking the welded finished product. Then, the welded finished product is moved upward and taken out.

[0028] Example 2

[0029] Reference Figure 1This is the second embodiment of the present invention. Unlike the previous embodiment, this embodiment provides a clamping component, including a drive component 20 mounted on the positioning component 12, a first clamping component 21 mounted on the drive component 20, and a second clamping component 22 mounted on the first clamping component 21.

[0030] Reference Figure 4 and Figure 5 The drive assembly 20 includes a fixed block 202 fixedly connected to the bottom side of the outer side of the placement frame 122. A bidirectional lead screw 201 is rotatably connected between the two fixed blocks 202. A third motor 204 for driving the bidirectional lead screw 201 to rotate is fixedly connected to the outer side of the fixed block 202 near the left side of the positioning assembly 12. A sliding hole is provided on the fixed block 202. A moving plate 203 is slidably connected inside the sliding hole. One end of the moving plate 203 is threaded onto the outer side of the bidirectional lead screw 201. A vertical plate 205 is fixedly connected to the other end of the moving plate 203. The third motor 204 is controlled to work and drive the bidirectional lead screw 201 to rotate. The rotation of the bidirectional lead screw 201 causes the two moving plates 203 to move towards each other inside the two sliding holes respectively. The movement of the moving plates 203 drives the vertical plate 205 to move.

[0031] Reference Figure 5 and Figure 6 The first clamping assembly 21 includes a crossbar 211. A circular hole is provided on the outer side of the placement frame 122, and the crossbar 211 is slidably inserted into the circular hole. One end of the crossbar 211 is fixedly connected to the vertical plate 205, and the other end of the crossbar 211 is fixedly connected to a sliding plate 212. A spring 213 is fixedly connected to the surface of the sliding plate 212, and the end of the spring 213 away from the sliding plate 212 is fixedly connected to a first clamping plate 214. The second clamping assembly 22 includes a vertical plate 221 fixedly connected to the top of the sliding plate 212. A limit post 222 is fixedly connected to the upper side of the inner surface of the vertical plate 221. When the vertical plate 205 moves, it drives the crossbar 211 to move. The movement of the crossbar 211 causes the sliding plate 212 to slide inside the placement frame 122. The movement of the spring 213 and the first clamping plate 214 causes the two clamping plates 214 to move relative to each other, clamping and limiting the lower oil collection pipe 15, thus improving the stability between the lower oil collection pipe 15 and the heat sink 16. After the upper oil collection pipe 15 is placed on the upper part of the heat sink 16, the third motor 204 is controlled to work, causing the slide plate 212 to continue moving. The movement of the slide plate 212 drives the vertical plate 221 to move, and the movement of the vertical plate 221 drives the limiting post 222 to move. The movement of the two limiting posts 222 clamps and limits the upper oil collection pipe 15, thereby improving the stability of the upper oil collection pipe 15. While the slide plate 212 continues to move, it squeezes the spring 213, causing the spring 213 to contract under the pressure.

[0032] In use, the third motor 204 is controlled to drive the bidirectional lead screw 201 to rotate. The rotation of the bidirectional lead screw 201 causes the two moving plates 203 to move towards each other inside the two sliding holes respectively. The movement of the moving plates 203 drives the vertical plate 205 to move. When the vertical plate 205 moves, it drives the horizontal bar 211 to move. The movement of the horizontal bar 211 causes the sliding plate 212 to slide inside the placement frame 122, thereby driving the spring 213 and the first clamping plate 214 to move. This causes the two first clamping plates 214 to move relative to each other, clamping and limiting the lower oil collection pipe 15, improving the stability between the lower oil collection pipe 15 and the heat sink 16. After the upper oil collection pipe 15 is placed on the upper part of the heat sink 16, the third motor 204 is controlled to work, causing the sliding plate 212 to continue to move. The movement of the sliding plate 212 drives the vertical plate 221 to move. The movement of the vertical plate 221 drives the limiting post 222 to move. The movement of the two limiting posts 222 clamps and limits the upper oil collection pipe 15, thereby improving the stability of the upper oil collection pipe 15. While the sliding plate 212 continues to move, it compresses the spring 213, causing the spring 213 to contract under compression.

[0033] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A radiator welding device, characterized in that: include, The welding component includes two support plates (10), a positioning component (12) is fixedly connected between the two support plates (10), a power component (11) is installed on the support plate (10) near the right end of the positioning component (12), a displacement component (14) is installed between the two support plates (10), a welding component (13) is installed on the displacement component (14), and a plurality of heat sinks (16) are inserted into the middle of the positioning component (12), and oil collection pipes (15) are installed at both the upper and lower ends of the heat sinks (16). The clamping component includes a drive assembly (20) mounted on a positioning assembly (12), on which a first clamping assembly (21) is mounted, and on which a second clamping assembly (22) is mounted.

2. The radiator welding device according to claim 1, characterized in that: The positioning component (12) includes a fixing rod (123) fixedly connected to the inner surface of the support plate (10), a support frame (121) symmetrically fixedly connected to the outside of the fixing rod (123), a limit plate (124) fixedly connected between the two support frames (121), and a placement frame (122) fixedly connected to the outside of the fixing rod (123).

3. The radiator welding device according to claim 2, characterized in that: The displacement assembly (14) includes a rotating plate (141) rotatably connected to the inner surface of the support plate (10). A connecting rod (142) is fixedly connected to one end of the rotating plate (141) away from the support plate (10). A sliding groove (145) is provided on the outer side of the connecting rod (142). A limit rod (146) is fixedly connected inside the sliding groove (145). Mounting plates (144) are symmetrically fixedly connected to the outer side of the connecting rod (142). A threaded rod (148) is rotatably connected between the two mounting plates (144). A sliding block (147) is threaded onto the outer side of the threaded rod (148). A second motor (143) for driving the threaded rod (148) to rotate is fixedly connected to the outer side of the mounting plate (144) near the welding assembly (13).

4. The radiator welding device according to claim 3, characterized in that: The power assembly (11) includes a driven gear (111), a main gear, and a first motor (114). The driven gear (111) is rotatably connected to the inner surface of the rotating plate (141), and the large gear (112) is rotatably connected to the outer side of the fixed rod (123). The first motor (114) is fixedly connected to the surface of the support plate (10) near the right side of the positioning assembly (12). The output end of the first motor (114) is fixedly connected to the small gear (113). Both driven gears (111) are meshed and connected to the large gear (112), and the large gear (112) is meshed and connected to the small gear (113).

5. A radiator welding device according to claim 2, characterized in that: The welding assembly (13) includes an incomplete annular rod (131) fixedly connected to the surface of the sliding block (147), on which a welding head (132) is mounted.

6. A radiator welding apparatus according to claim 5, characterized in that: The inner surface of the limiting plate (124) is provided with multiple insertion slots, and the heat sink (16) is inserted into the inside of the insertion slots.

7. A radiator welding device according to claim 6, characterized in that: The end of the sliding block (147) away from the incomplete annular rod (131) is slidably connected to the inner wall of the sliding groove (145), and the sliding block (147) is slidably sleeved on the outside of the limiting rod (146).

8. A radiator welding device according to claim 1, characterized in that: The drive assembly (20) includes a fixed block (202) fixedly connected to the bottom side of the outer side of the placement frame (122), a bidirectional lead screw (201) rotatably connected between the two fixed blocks (202), and a third motor (204) for driving the bidirectional lead screw (201) to rotate is fixedly connected to the outside of the fixed block (202) near the left side of the positioning assembly (12). The fixed block (202) has a sliding hole, and a moving plate (203) is slidably connected inside the sliding hole. One end of the moving plate (203) is threaded onto the outside of the bidirectional lead screw (201), and the other end of the moving plate (203) is fixedly connected to a vertical plate (205).

9. A radiator welding device according to claim 2, characterized in that: The first clamping assembly (21) includes a crossbar (211). A circular hole is provided on the outer side of the placement frame (122). The crossbar (211) is slidably inserted into the inside of the circular hole. One end of the crossbar (211) is fixedly connected to the vertical plate (205). The other end of the crossbar (211) is fixedly connected to a sliding plate (212). A spring (213) is fixedly connected to the surface of the sliding plate (212). The end of the spring (213) away from the sliding plate (212) is fixedly connected to a first clamping plate (214).

10. A radiator welding apparatus according to claim 1, characterized in that: The second clamping assembly (22) includes a vertical plate (221) fixedly connected to the top of the slide plate (212), and a limit post (222) is fixedly connected to the upper side of the inner surface of the vertical plate (221).

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