A welding mechanical arm and welding process for reducing deformation of an aluminum cabinet box

Abstract

The application discloses a welding mechanical arm for reducing deformation of an aluminum cabinet box body and a welding process, relates to the field of aluminum cabinet box body welding, and comprises a machining table and a mechanical arm body, a rotating piece is rotationally arranged on the machining table, a welding plate is arranged on the inner side of the rotating piece, clamping plates are symmetrically arranged on the welding plate, the clamping plates can slide on the welding plate, heat-conducting columns matched with the clamping plates are slidably arranged on the welding plate in the vertical direction, the heat-conducting columns are used for jacking up workpieces to be welded, and cavities are arranged in the welding plate. The heat-conducting columns on the welding plate are upwardly jacked up, laser energy is effectively slowed down from being conducted to the welding plate through the aluminum cabinet box, heat generated by the heat-conducting columns can be taken away through cooling liquid, the impeller in the cavity of the welding plate is driven to rotate, the heat dissipation fan is rapidly rotated, and the aluminum cabinet box to be welded can be overall heat-dissipated.

Description

Technical Field

[0001] This invention relates to the field of aluminum cabinet welding, specifically to a welding robotic arm and welding process for reducing deformation of aluminum cabinets. Background Technology

[0002] The energy carrier of laser welding is a highly directional, high-energy-density laser beam. After being focused by an optical system (lens, fiber), it acts on the surface of the workpiece from a distance. Laser welding uses high-energy laser pulses to locally heat a small area of ​​the aluminum cabinet. The energy of the laser radiation diffuses into the interior of the cabinet through heat conduction, melting the aluminum material of the cabinet to form a specific molten pool. After cooling, the cabinet completes the initial shaping process.

[0003] The advantages of laser welding lie in its small welding point and concentrated high-power heat source, enabling it to weld thick plates. However, the highly concentrated energy during laser welding results in approximately 30%-70% of the laser energy being conducted through the aluminum material of the welding cabinet to the welding platform. Since the welding platform is a metal platform, it is subject to thermal expansion and contraction (especially in thick plate welding and continuous welding), which leads to a deterioration in the flatness of the welding platform surface, directly affecting the subsequent welding accuracy. At the same time, the heat from the platform is conducted back to the workpiece, resulting in excessive weld reinforcement, coarse grains, and stress concentration, reducing the overall welding quality. Furthermore, the cooling method of the weld during welding directly affects the weld's microstructure, mechanical properties, residual stress, and defect risk. Existing cooling methods mostly rely on natural cooling, which has a slow overall cooling rate and also leads to coarse grains at the weld.

[0004] In summary, the high temperature of the welding platform during laser welding affects the overall welding quality and precision. At the same time, the cooling method of the weld seam can lead to coarse grains at the weld seam, reducing the overall welding efficiency. Summary of the Invention

[0005] Based on this, the purpose of this invention is to provide a welding robotic arm and welding process that reduces the deformation of aluminum cabinet enclosures, in order to solve the technical problems that the welding platform is affected by high temperature during laser welding, which affects the overall welding quality and precision, and that the weld cooling method leads to coarse grains at the weld, reducing the overall welding efficiency.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a welding robotic arm for reducing the deformation of aluminum cabinets, comprising a processing table and a robotic arm body, wherein the output end of the robotic arm body is connected to a laser welding assembly, a rotating component is rotatably disposed on the processing table, wherein a welding plate is disposed on the inner side of the rotating component, and clamping plates are symmetrically disposed on the welding plate, and the clamping plates themselves can slide on the welding plate, and heat-conducting columns that cooperate with the clamping plates are slidably disposed on the welding plate in the vertical direction, wherein the heat-conducting columns are used to lift the workpiece to be welded; The welding plate has a cavity for the flow of coolant, and an inlet pipe for coolant to enter is connected to one side of the welding plate. An impeller is rotatably arranged in the cavity. Heat dissipation holes are provided through the welding plate, and a cooling fan that cooperates with the impeller is rotatably arranged in the heat dissipation holes. The cooling fan is used to dissipate heat from the workpiece.

[0007] By adopting the above technical solution, the clamping plate drives the fixed gear in the slide groove to rotate, causing the heat-conducting column on the welding plate to be pushed upward. At this time, the entire aluminum cabinet is detached from the surface of the welding plate and supported by the heat-conducting column. During the welding process, the laser energy is effectively slowed down from being conducted through the aluminum cabinet to the welding plate. Coolant is introduced into the cavity of the welding plate through the liquid inlet pipe, so that the coolant can carry away the heat discharged by the heat-conducting column. At the same time, it drives the impeller in the cavity of the welding plate to rotate. Under the action of the first transmission mechanism, the cooling fan rotates rapidly. During this process, the entire welded aluminum cabinet can also be cooled.

[0008] The invention is further configured such that a frame is provided at the bottom of the welding plate inside the rotating component, a circulation pipe is installed inside the frame, and the cooling fan is located above the circulation pipe. One end of the circulation pipe is connected to a drain pipe that passes through the frame, and the other end of the circulation pipe is connected to a return pipe that is connected to one side of the welding plate. The return pipe is used to discharge the coolant inside the welding plate.

[0009] Preferably, the internal coolant is discharged into the circulation pipe within the frame through the return pipe, where the circulation pipe itself is located at the bottom of the cooling fan. Since the coolant in the circulation pipe is still at a low temperature, when the cooling fan blows air, the air cooled by the circulation pipe will be discharged to the bottom of the aluminum cabinet. This process enables the coolant to be reused, improving the overall cooling effect and reducing the overall cooling cost.

[0010] The invention is further configured such that the welding plate is provided with an electric sliding groove, wherein the bottom of the clamping plate is connected to an electric slider that cooperates with the electric sliding groove.

[0011] Preferably, the electric sliding groove and the electric sliding block work together to enable the clamps on the welding plate to slide stably, which facilitates the welding of aluminum cabinets of different sizes by the workers.

[0012] The invention is further configured such that a fixed gear is provided on the welding plate within the electric sliding groove, and a toothed block is provided on one side of the electric slider to drive the fixed gear to rotate. A second transmission mechanism is connected to the bottom of the fixed gear, and a threaded rod is connected to one end of the second transmission mechanism, wherein the heat-conducting column and the threaded rod are threadedly connected.

[0013] Preferably, when the welding plate slides under the action of the electric slider and the electric slide groove, the toothed block on one side of the electric slider will drive the fixed gear in the electric slide groove to rotate, thereby causing the second transmission mechanism at the bottom of the fixed gear to rotate. Under the action of the second transmission mechanism, the threaded rod at the bottom of the heat-conducting column will rotate, and the heat-conducting column will slide in the vertical direction through the threaded sleeve.

[0014] The present invention is further configured such that one end of the impeller extends through the welding plate and is connected to a first transmission mechanism, and the bottom of the impeller and the welding plate are sealed together, and one end of the first transmission mechanism is connected to a cooling fan.

[0015] Preferably, when the impeller rotates through the flowing coolant, it drives the first transmission mechanism at the bottom to rotate, thereby driving the cooling fan in the heat dissipation hole to rotate and complete the heat dissipation work at the bottom of the aluminum cabinet.

[0016] The present invention is further configured such that guide holes are provided on both sides of the heat dissipation hole, wherein the other end of the guide hole extends through the top of the welding plate, and the heat conduction column itself is located inside the guide hole.

[0017] Preferably, under the action of the guide holes, when the cooling fan inside the heat dissipation holes rotates, some of its low-temperature gas will be quickly discharged to the bottom sides of the aluminum cabinet through the guide holes, ensuring the overall heat dissipation coverage area and heat dissipation uniformity. In addition, the low-temperature gas will also carry away some of the heat from the heat conduction column when passing through the heat conduction column. The coolant in the welding plate during this process further improves the heat conduction efficiency of the heat conduction column itself.

[0018] The present invention is further configured such that the first transmission mechanism includes a driving disc, a transmission belt and a driven disc, the driving disc and the driven disc are connected by the transmission belt, the bottom of the impeller is connected to the driving disc, one end of the driven disc is connected to the cooling fan, and the diameter of the driving disc in the first transmission mechanism is larger than the diameter of the driven disc.

[0019] Preferably, when the impeller rotates due to the flow of coolant, its bottom drive disc will rotate accordingly. Under the action of the transmission belt, the driven disc drives the cooling fan to rotate. Since the diameter of the drive disc in the first transmission mechanism is larger than the diameter of its driven disc, when the impeller drives the drive disc to rotate several times, its driven disc will drive the cooling fan to rotate several times more times, thereby ensuring the cooling effect of the cooling fan located in the heat dissipation hole.

[0020] The present invention is further configured such that the liquid inlet pipe and the impeller are eccentrically positioned, and the impeller itself has an arc-shaped surface in the direction of rotation.

[0021] Preferably, the eccentrically positioned impeller will rotate rapidly under the impact of the coolant when the external water pump delivers coolant to the interior through the inlet pipe, and the arc-shaped surface on the impeller facilitates the improvement of the overall rotation speed of the impeller.

[0022] The present invention is further configured such that the inner wall of the clamping plate is provided with a high-temperature resistant protective sleeve, and the high-temperature resistant protective sleeve is detachable from the clamping plate.

[0023] Preferably, the high-temperature resistant protective sleeve is made of polyimide material, which has a certain degree of flexibility. Therefore, during the clamping process, it can ensure the contact area with the side wall of the aluminum cabinet and improve the overall clamping stability.

[0024] A welding process for reducing deformation of aluminum cabinet enclosures includes the following steps: Step 1: The laser welding assembly is clamped at the output end of the robotic arm body, while the aluminum cabinet to be welded is placed on the welding plate and supported and clamped. Then the robotic arm body guides the laser welding assembly to perform welding work on the aluminum cabinet. Step 2: The laser welding assembly first performs light-power spot welding on the joints of the aluminum cabinet to shape it. Then, the laser welding assembly increases the power to strengthen the weld at the spot weld. At this time, the liquid inlet pipe introduces coolant into the welding plate. The coolant carries away some of the heat dissipated by the heat conduction column, and the impeller rotates under the action of the coolant, so that the cooling fan in the heat dissipation hole on one side works with the coolant to dissipate heat. Step 3: After welding is completed, the clamping plate slides to both sides. At this time, the heat conduction column slides down, so that the aluminum cabinet is on top of the welding plate. The material is clamped and unloaded by the transport component. At the same time, another set of aluminum cabinets to be welded is placed on the welding plate. The above process is repeated until all the aluminum cabinets are welded.

[0025] By adopting the above technical solution, the upward lifting of the heat-conducting pillars on the welding plate effectively slows down the conduction of laser energy through the aluminum cabinet to the welding plate. The coolant can carry away the heat discharged by the heat-conducting pillars, while driving the impeller in the welding plate cavity to rotate, causing the cooling fan to rotate rapidly, which can dissipate heat from the entire welded aluminum cabinet.

[0026] In summary, the present invention has the following main beneficial effects: 1. This invention features a clamping plate that slides on a welding plate. Before welding, the clamping plate moves to limit and clamp the aluminum cabinet to be welded. During this process, the clamping plate drives the fixed gear in the sliding groove to rotate. Under the action of the second transmission mechanism, the heat-conducting column on the welding plate is pushed upward. At this time, the aluminum cabinet is completely separated from the surface of the welding plate and supported by the heat-conducting column. The clamping plate fixes both sides of the cabinet. During the welding process, the laser energy is effectively reduced from being conducted through the aluminum cabinet to the welding plate, preventing the welding platform from being affected by high temperature and thus affecting the overall welding quality and precision. 2. This invention provides a liquid inlet pipe on one side of the welding plate, and a chamber for coolant flow is opened inside the welding plate. The coolant is introduced into the chamber of the welding plate through the liquid inlet pipe, so that the coolant can carry away the heat discharged by the heat conduction column. At the same time, during the process of coolant introduction, it will drive the impeller in the chamber of the welding plate to rotate. Under the action of the first transmission mechanism, the cooling fan will rotate rapidly. In this process, the entire welded aluminum cabinet can also dissipate heat, refine the grains at the weld, and accelerate the overall welding efficiency. 3. This invention provides a return pipe on one side of the welding plate, through which the internal coolant is discharged into the circulation pipe within the frame. The circulation pipe itself is located at the bottom of the cooling fan. Since the coolant in the circulation pipe is still at a relatively low temperature, when the cooling fan blows air, the air cooled by the circulation pipe is discharged to the bottom of the aluminum cabinet. This process enables the secondary use of the coolant, improving the overall cooling effect and reducing the overall cooling cost. Attached Figure Description

[0027] Figure 1 This is a perspective view of the present invention; Figure 2 For the present invention Figure 1 Enlarged view of A in the middle; Figure 3 This is a schematic diagram of the processing table clamp plate of the present invention in the open state; Figure 4 This is a schematic diagram of the air-cooling structure of the present invention; Figure 5 This is a schematic diagram of the flow guide hole structure of the present invention; Figure 6 For the present invention Figure 5 Enlarged view of B in the middle; Figure 7 This is a schematic diagram of the transmission mechanism structure of the present invention; Figure 8 This is a schematic diagram of the processing table clamping plate in the clamping state of the present invention; Figure 9 This is a schematic diagram of the framework structure of the present invention; Figure 10 This is a schematic diagram of the welding plate structure of the present invention; Figure 11 This is a schematic diagram of the cooling fan drive structure of the present invention; Figure 12 This is a schematic diagram of the structure of the welding plate in the flipped state of the present invention.

[0028] Explanation of reference numerals in the attached figures: 1. Processing table; 2. Robotic arm body; 3. Frame; 4. Welding plate; 5. Laser welding assembly; 6. Heat dissipation hole; 7. Clamping plate; 8. Rotating component; 9. Electric sliding groove; 10. Fixed gear; 11. Guide hole; 12. Heat-conducting column; 13. Drain pipe; 14. Cooling fan; 15. First transmission mechanism; 16. Circulation pipe; 17. Tooth block; 18. Second transmission mechanism; 19. Threaded rod; 20. Impeller; 21. Inlet pipe; 22. Return pipe. Detailed Implementation

[0029] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0030] The embodiments of the present invention will now be described.

[0031] Example 1: Please refer to Figures 1-12 The diagram illustrates a welding robotic arm and welding process for reducing deformation of aluminum cabinet enclosures. The arm includes a processing table 1, a robotic arm body 2, a laser welding assembly 5, a transmission mechanism, a welding mechanism, and a cooling mechanism. An operator clamps the laser welding assembly 5 at the output end of the robotic arm body 2. Simultaneously, the aluminum cabinet enclosure to be welded is placed on a welding plate 4. An electric sliding groove 9 is provided on the welding plate 4. The bottom of a clamping plate 7 is connected to an electric slider that cooperates with the electric sliding groove 9. Through the cooperation of the electric sliding groove 9 and the electric slider, the clamping plate 7 is moved inward. The driving method between the electric slider and the electric sliding groove 9 is prior art for those skilled in the art, and its specific working principle is based on the principle of electromagnetic induction. Because a fixed gear 10 is provided on the welding plate 4 within the electric sliding groove 9, and a toothed block 17 is provided on one side of the electric slider to drive the fixed gear 10 to rotate, when the welding plate 4 slides under the action of the electric slider and the electric sliding groove 9, the toothed block 17 on one side of the electric slider will drive the fixed gear 10 in the electric sliding groove 9 to rotate. Furthermore, a second transmission mechanism 18 is connected to the bottom of the fixed gear 10, and a threaded rod 19 is connected to one end of the second transmission mechanism 18. The heat-conducting column 12 and the threaded rod 19 are threadedly connected, thereby enabling the fixed gear 10 to rotate. The second transmission mechanism 18 at the bottom rotates, causing the threaded rod 19 at the bottom of the heat-conducting column 12 to rotate. The threaded rod 19 drives the heat-conducting column 12 to slide in the vertical direction. At this time, the aluminum cabinet is completely detached from the surface of the welding plate 4 and supported by the heat-conducting column 12. Its clamping plate 7 fixes its two sides. During the welding process, the laser energy is effectively reduced from being conducted through the aluminum cabinet to the welding plate 4, preventing the welding platform from being affected by high temperature and thus affecting the overall welding quality and precision. Meanwhile, a cavity is provided inside the welding plate 4, which is used for the flow of coolant. A liquid inlet pipe 21 is connected to one side of the welding plate 4 for the coolant to enter. The coolant is introduced into the cavity of the welding plate 4 through the liquid inlet pipe 21, so that the coolant can carry away the heat discharged by the heat-conducting column 12. An impeller 20 is rotatably arranged in the cavity. Heat dissipation holes 6 are provided through the welding plate 4. One end of the impeller 20 extends out of the welding plate 4 and is connected to a first transmission mechanism 15. The bottom of the impeller 20 is sealed to the welding plate 4. One end of the first transmission mechanism 15 is connected to a cooling fan 14. When the impeller 20 rotates through the flowing coolant, it drives the first transmission mechanism 15 at the bottom to rotate, thereby driving the cooling fan 14 in the heat dissipation hole 6 to rotate. The cooling fan 14 can dissipate heat from the welded aluminum cabinet, refine the grains at the weld, and accelerate the overall welding efficiency.

[0032] For details regarding the above embodiments, please refer to [link / reference]. Figure 11 The first transmission mechanism 15 includes a driving disc, a transmission belt, and a driven disc. The driving disc is connected to the bottom of the impeller 20, and one end of the driven disc is connected to the cooling fan 14. When the impeller 20 rotates due to the flow of coolant, the driving disc at its bottom will rotate accordingly. Under the action of the transmission belt, the driven disc drives the cooling fan 14 to rotate. Since the diameter of the driving disc in the first transmission mechanism 15 is larger than the diameter of its driven disc, when the impeller 20 drives the driving disc to rotate several times, its driven disc will drive the cooling fan 14 to rotate several times more times, thereby ensuring the cooling effect of the cooling fan 14 located in the heat dissipation hole 6.

[0033] For details regarding the above embodiments, please refer to [link / reference]. Figure 5 and Figure 11 The impeller 20 is eccentrically positioned between the inlet pipe 21 and the impeller 20, and the impeller 20 itself has an arc-shaped surface in the direction of rotation. When the external water pump delivers coolant to the impeller 20 through the inlet pipe 21, the impeller 20 will rotate rapidly under the impact of the coolant, and the arc-shaped surface on the impeller 20 helps to increase the overall rotation speed of the impeller 20.

[0034] Example 2: Please refer to Figure 4 and Figure 9 The welding robotic arm and welding process shown are similar in structure to Embodiment 1, which reduces the deformation of aluminum cabinets. A frame 3 is located at the bottom of the welding plate 4 within the rotating component 8. A circulation pipe 16 is installed within the frame 3, and a cooling fan 14 is located above the circulation pipe 16. One end of the circulation pipe 16 is connected to a drain pipe 13, which penetrates the frame 3. The other end of the circulation pipe 16 is connected to a return pipe 22, which is connected to one side of the welding plate 4. The return pipe 22 is used to discharge the coolant from the welding plate 4, draining the internal coolant back into the circulation pipe 16 within the frame 3. The circulation pipe 16 itself is located at the bottom of the cooling fan 14. Since the coolant is still at a relatively low temperature, when the cooling fan 14 blows air, the air cooled by the circulation pipe 16 is discharged towards the bottom of the aluminum cabinet. This process achieves secondary utilization of the coolant, improving the overall cooling effect and reducing the overall cooling cost.

[0035] Example 3: Please refer to Figure 5 and Figure 8 The welding robotic arm and welding process shown herein reduce the deformation of aluminum cabinet enclosures. Based on embodiment two, the heat dissipation hole 6 has guide holes 11 on both sides, with the other end of the guide hole 11 penetrating the top of the welding plate 4. The heat conduction column 12 itself is located inside the guide hole 11. Under the action of the guide hole 11, when the cooling fan 14 in the heat dissipation hole 6 rotates, some of its low-temperature gas will be quickly discharged to the bottom sides of the aluminum cabinet enclosure through the guide hole 11, ensuring the overall heat dissipation coverage area and heat dissipation uniformity. The low-temperature gas passing through the heat conduction column 12 will also carry away some of the heat from the heat conduction column 12. In this process, the coolant in the welding plate 4 further improves the heat conduction efficiency of the heat conduction column 12 itself.

[0036] In practical operation, the present invention is used by placing the aluminum cabinet to be welded on top of the welding plate 4, and then driving the two sets of clamping plates 7 to slide inward through the electric drive assembly. During this process, the toothed block 17 on one side of the clamping plate 7 will drive the fixed gear 10 to rotate. Under the action of the second transmission mechanism 18, the heat-conducting column 12 on the welding plate 4 is in a lifted state. During this process, the heat-conducting column 12 will lift the aluminum cabinet to be welded, and the clamping plate 7 will continue to drive to complete the clamping work on both sides of the aluminum cabinet. At this time, the robotic arm body 2 drives the laser welding assembly 5 at the output end to perform welding operations on the aluminum cabinet. During the welding process, the laser energy is effectively reduced from being conducted through the aluminum cabinet to the welding plate 4. Meanwhile, a cavity is opened inside the welding plate 4, and coolant is introduced into the welding plate 4 through the liquid inlet pipe 21 on one side. At this time, the coolant will carry away the heat conducted by the heat conduction column 12, thereby effectively cooling the welding plate 4. Furthermore, an impeller 20 is rotatably installed inside the welding plate 4. The impeller 20 rotates under the action of the coolant flow. With the cooperation of the first transmission mechanism 15, the cooling fan 14 at the heat dissipation hole 6 rotates rapidly. During this process, the cooling fan 14 dissipates heat from the entire welded aluminum cabinet. With the action of the heat conduction column 12, the cold air blown by the cooling fan 14 can be distributed to the entire bottom of the aluminum cabinet, thereby refining the grains at the weld and accelerating the overall welding efficiency, thus improving the overall practicality of the device.

[0037] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the invention and are not intended to limit it. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and spirit of the invention, but such modifications, substitutions, and variations are protected by patent law as long as they are within the scope of the claims of the present invention.

Claims

1. A welding robotic arm for reducing deformation of aluminum cabinet enclosures, comprising a processing table (1) and a robotic arm body (2), wherein the output end of the robotic arm body (2) is connected to a laser welding assembly (5), characterized in that: The processing table (1) is rotatably provided with a rotating part (8), and a welding plate (4) is provided inside the rotating part (8). The welding plate (4) is symmetrically provided with a clamping plate (7), and the clamping plate (7) itself can slide on the welding plate (4). At the same time, a heat-conducting column (12) that cooperates with the clamping plate (7) is slidably provided on the welding plate (4) in the vertical direction. The heat-conducting column (12) is used to lift the workpiece to be welded. The welding plate (4) is provided with an electric sliding groove (9), and an electric slider that cooperates with the electric sliding groove (9) is connected to the bottom of the clamping plate (7). A fixed gear (10) is provided on the welding plate (4) in the electric sliding groove, and a tooth block (17) that drives the fixed gear (10) to rotate is provided on one side of the electric slider. A second transmission mechanism (18) is connected to the bottom of the fixed gear (10), and a threaded rod (19) is connected to one end of the second transmission mechanism (18). The heat-conducting column (12) and the threaded rod (19) are threadedly connected. The welding plate (4) has a cavity for the flow of coolant. One side of the welding plate (4) is connected to an inlet pipe (21) for the coolant to enter. An impeller (20) is rotatably arranged in the cavity. A heat dissipation hole (6) is provided through the welding plate (4). A cooling fan (14) that cooperates with the impeller (20) is rotatably arranged in the heat dissipation hole (6). The cooling fan (14) is used to dissipate heat from the workpiece. A guide hole (11) is provided on both sides of the heat dissipation hole (6). The other end of the guide hole (11) extends through the top of the welding plate (4). The heat-conducting column (12) itself is located inside the guide hole (11). A frame (3) is provided at the bottom of the welding plate (4) inside the rotating component (8). A circulation pipe (16) is installed inside the frame (3). The cooling fan (14) is located above the circulation pipe (16). One end of the circulation pipe (16) is connected to a drain pipe (13), which passes through the frame (3). The other end of the circulation pipe (16) is connected to a return pipe (22), which is connected to one side of the welding plate (4). The return pipe (22) is used to discharge the coolant inside the welding plate (4). The impeller (20) One end of the impeller (20) extends through the welding plate (4) and is connected to the first transmission mechanism (15). The bottom of the impeller (20) is sealed to the welding plate (4). One end of the first transmission mechanism (15) is connected to the cooling fan (14). The first transmission mechanism (15) includes a drive disc, a transmission belt and a driven disc. The drive disc and the driven disc are connected by the transmission belt. The bottom of the impeller (20) is connected to the drive disc. One end of the driven disc is connected to the cooling fan (14). The diameter of the drive disc in the first transmission mechanism (15) is larger than the diameter of the driven disc.

2. The welding robotic arm for reducing deformation of aluminum cabinet enclosures according to claim 1, characterized in that: The liquid inlet pipe (21) and the impeller (20) are eccentrically positioned, and the impeller (20) itself has an arc-shaped surface in the direction of rotation.

3. The welding robotic arm for reducing deformation of aluminum cabinets according to claim 1, characterized in that: The inner wall of the clamp (7) is provided with a high-temperature resistant protective sleeve, which is detachable on the clamp (7).

4. A welding process for reducing deformation of aluminum cabinet enclosures, comprising employing a welding robotic arm for reducing deformation of aluminum cabinet enclosures as described in claim 1, characterized in that, Includes the following steps: Step 1: The laser welding assembly is clamped at the output end of the robotic arm body, while the aluminum cabinet to be welded is placed on the welding plate and supported and clamped. Then the robotic arm body guides the laser welding assembly to perform welding work on the aluminum cabinet. Step 2: The laser welding assembly first performs light-power spot welding on the joints of the aluminum cabinet to shape it. Then, the laser welding assembly increases the power to strengthen the weld at the spot weld. At this time, the liquid inlet pipe introduces coolant into the welding plate. The coolant carries away some of the heat dissipated by the heat conduction column, and the impeller rotates under the action of the coolant, so that the cooling fan in the heat dissipation hole on one side works with the coolant to dissipate heat. Step 3: After welding is completed, the clamping plate slides to both sides. At this time, the heat conduction column slides down, so that the aluminum cabinet is on top of the welding plate. The material is clamped and unloaded by the transport component. At the same time, another set of aluminum cabinets to be welded is placed on the welding plate. The above process is repeated until all the aluminum cabinets are welded.

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