Power cabinet welding equipment

Abstract

The invention discloses power cabinet welding equipment which comprises a welding mechanism, the welding mechanism comprises a welding base, an adjusting rod is fixedly connected to the upper end of the welding base, a welding unit is arranged on the outer side of the adjusting rod, a welding gun is fixedly connected to the lower end of the welding unit, a limiting mechanism is arranged above the welding mechanism, and the limiting mechanism comprises a cooling sleeve. And the cooling jacket is inserted and fixed with the welding gun. Through the arrangement of the cooling sleeve, during use, heat on the welding gun can be brought out through the heat dissipation fins, and the heat on the heat dissipation fins is dissipated through flowing of airflow, so that heat dissipation of the welding gun is achieved, meanwhile, smoke and dust generated during welding can be adsorbed, and the smoke and dust enter the fixing box and then are filtered through the filter plate; and in this way, the working temperature of the welding gun is guaranteed, the welding gun is cooled in time, meanwhile, the dust generated during welding is cleared away in time, the phenomena of welding gun blockage and electrode oxidation are avoided, and use smoothness is guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of welding, and particularly to a power cabinet welding device. Background Art

[0002] A power cabinet refers to an electrical control cabinet combination that provides power for the normal operation of the entire machine, including contactors, frequency converters, high-voltage cabinets, transformers, etc. During the production of power cabinets, welding equipment is required to weld and fix each plate of the power cabinet. Since the wall thickness of the power cabinet is relatively thin, spot welding is used for the welding of power cabinets for fixation.

[0003] For example, Chinese Patent CN111266730B discloses a welding device, including: a first light emission module for emitting a first laser beam to a welding area; a second light emission module for emitting a second laser beam to the welding area; during a welding cycle, the first light emission module and the second light emission module are both in a working state, and the first laser beam is transmitted to the welding area through a preset path, and the second laser beam is transmitted to the welding area through a first path and a second path at different times.

[0004] In the prior art, during the welding process of power cabinets, when the welding machine is working, the heat of the welding torch part is relatively high. After a period of use, the welding torch needs to be cooled to avoid high temperature and reduce the service life of the welding torch. At the same time, high temperature will cause the electrode to oxidize and the nozzle to be blocked, and it needs to be cleaned regularly, which is inconvenient to use. Summary of the Invention

[0005] The purpose of the present invention is to provide a power cabinet welding device to solve the problems mentioned in the above background art, that is, during the welding process of power cabinets, when the welding machine is working, the heat of the welding torch part is relatively high. After a period of use, the welding torch needs to be cooled to avoid high temperature and reduce the service life of the welding torch. At the same time, high temperature will cause the electrode to oxidize and the nozzle to be blocked, and it needs to be cleaned regularly, which is inconvenient to use.

[0006] To achieve the above object, the present invention provides the following technical solution: A power cabinet welding device, including a welding mechanism. The welding mechanism includes a welding base. An adjusting rod is fixedly connected to the upper end of the welding base. A welding unit is arranged outside the adjusting rod. A welding gun is fixedly connected to the lower end of the welding unit. A limiting mechanism is arranged above the welding mechanism. The limiting mechanism includes a cooling sleeve. The cooling sleeve is inserted and fixed with the welding gun. A third connection port is fixedly communicated above the middle of the outer surface of the cooling sleeve. Heat dissipation fins are fixedly connected inside the cooling sleeve. One side of the upper end of the welding base is fixedly connected with a fixed box. An end cover is installed on the upper end of the fixed box. A first connection port is fixedly communicated with the upper end of the end cover. A second connection port is fixedly communicated with one side of the fixed box. The second connection port is used to connect an air extraction device. One end of the third connection port is fixedly communicated with a connecting pipe. The other end of the connecting pipe is fixedly communicated with the first connection port. A third connection port is arranged inside the fixed box. An inner support rod is fixedly connected to the lower end inside the third connection port. A filter plate is arranged above the inner support rod. Through the setting of the cooling sleeve, during use, the heat on the welding gun can be taken out by the heat dissipation fins, and through the flow of air, the heat on the heat dissipation fins can be dissipated, so as to realize the heat dissipation of the welding gun. At the same time, the fumes and dust generated during welding can be adsorbed. After entering the fixed box, they are filtered by the filter plate to collect the dust. In this way, the temperature of the welding gun during operation is ensured, and it is timely cooled. At the same time, the dust generated by welding is timely cleaned to avoid the phenomenon of blockage and electrode oxidation of the welding gun, ensuring the smoothness of use. The end cover is installed in a clamping manner with the fixed box, which is convenient for the disassembly and installation of the end cover, so as to facilitate the disassembly and cleaning of the filter plate. At the same time, through the setting of the second connection port, the air flow moves from top to bottom. In this way, the filter plate can be installed and positioned by using a clamping method, and the use stability is relatively high.

[0007] Preferably, a first support plate is fixedly connected above the middle inside the fixed box. Limit plates are fixedly connected to both sides of the welding unit. Limit rods are fixedly connected to the two corners above and below the middle inside the limit plates. Through the setting of the first support plate, the third connection port is supported to ensure the flow of air. Through the setting of the limit plates and limit rods, the connecting pipe is supported. At the same time, the cross section of the limit rod is circular, which can reduce the friction with the connecting pipe and make the movement of the connecting pipe smoother.

[0008] Preferably, a weight plate is fixedly connected to the outside of the connecting pipe. Through the setting of the weight plate, the connecting pipe is pulled to avoid the connecting pipe affecting welding and ensuring the use stability.

[0009] Preferably, an adjustment cavity is provided at the upper end of the welding base and at the lower end of the welding unit. A second lead screw is rotatably connected inside the adjustment cavity. On both sides of the middle part inside the adjustment cavity, guide slide bars are fixedly connected. A second connecting block is slidably connected inside the adjustment cavity. The welding base is threadedly connected to the second lead screw and slidably connected to the guide slide bars. Inside the adjusting rod, a first lead screw is rotatably connected. Inside the adjusting rod, a first connecting block is slidably connected. The first connecting block is threadedly connected to the first lead screw. The welding unit is fixedly connected to the first connecting block. Support feet are fixedly connected to the four corners at the lower end of the welding base.

[0010] Preferably, a cooling mechanism is provided at the upper end of the second connecting block. The cooling mechanism includes a bearing seat, which is fixedly connected to the second connecting block. On one side of the bearing seat, a side limiting plate is fixedly connected, and the side limiting plate is in contact with one side of the welding base. Through the setting of the side limiting plate, it is used to increase the guiding effect on the bearing seat and ensure the use stability.

[0011] Preferably, a second support plate is fixedly connected above the middle part inside the bearing seat. An end mounting plate is installed at the upper end of the second support plate. On one side of the upper end of the end mounting plate, a limiting frame is fixedly connected.

[0012] Preferably, an angle adjusting plate is rotatably connected to one side of the upper end of the bearing seat. A hydraulic cylinder is rotatably connected between the middle part below one side of the angle adjusting plate and one side of the side limiting plate. Through the setting of the hydraulic cylinder, it is used to adjust the inclination angle of the angle adjusting plate, so as to adapt to different welding angles, which is more convenient to use.

[0013] Preferably, limiting frames are fixedly connected to both the upper and lower parts of the middle part on one side of the angle adjusting plate. One end of the limiting frame is fixedly connected with a first limiting cover plate. Through the setting of the limiting frame and the limiting strip, it is used to install an electromagnet, and the welding components of the power cabinet can be adsorbed and fixed by the electromagnet. In this way, clamping can be avoided, and the stability is relatively high after installation. The magnetic adsorption force can also be adjusted by the current, which is convenient for the adjustment of the welding components and is more convenient to use.

[0014] Preferably, a through cavity is penetrated and provided at the upper end of the end mounting plate and below the limiting frame. On both sides of the middle part at the lower end of the limiting frame, fastening threaded parts are fixedly connected. A second limiting cover plate is provided below the limiting frame. Through the setting of the limiting frame, the welding components of the power cabinet are supported to prevent the contact between the lower ends of the welding parts, resulting in an increase in heat and affecting the normal operation of the components inside the welding base. Through the setting of the second limiting cover plate and the first limiting cover plate, it is used to clamp and install the electromagnet, and the installation is more convenient.

[0015] Preferably, limiting strips are fixedly connected to both sides of the middle part at the lower end of the limiting frame.

[0016] Compared with the prior art, the beneficial effects of the present invention are: 1. In the present invention, through the setting of the cooling jacket, during use, the heat on the welding torch can be taken out through the heat dissipation fins, and through the flow of air, the heat on the heat dissipation fins can be dissipated, thereby realizing the heat dissipation of the welding torch. At the same time, the fumes and dust generated during welding can be adsorbed, and after entering the fixed box, they are filtered by the filter plate to collect the dust. In this way, the temperature of the welding torch during operation is ensured, and it is timely dissipated. At the same time, the dust generated by welding is cleaned in a timely manner, avoiding the phenomena of blockage and electrode oxidation of the welding torch, ensuring the smoothness of use. The end cover is installed by a snap connection with the fixed box, which facilitates the disassembly and installation of the end cover, so as to facilitate the disassembly and cleaning of the filter plate. At the same time, through the setting of the second connection port, the air flow moves from top to bottom. In this way, the filter plate can be installed and positioned by a snap connection method, and the use stability is relatively high.

[0017] 2. In the present invention, through the setting of the first support plate, the third connection port is supported to ensure the flow of air. Through the setting of the limiting plate and the limiting rod, the connecting pipe is supported. At the same time, the cross-section of the limiting rod is circular, which can reduce the friction on the connecting pipe and make the movement of the connecting pipe smoother. Through the setting of the hanging plate, the connecting pipe is pulled to avoid the influence of the connecting pipe on welding and ensure the use stability.

[0018] 3. In the present invention, through the setting of the side limiting plate, it is used to increase the guiding effect on the bearing seat and ensure the use stability. Through the setting of the limiting frame, the welding components of the power cabinet are supported to avoid the contact between the lower ends of the welding parts, resulting in an increase in heat and affecting the normal operation of the internal components of the welding base. Through the setting of the limiting frame and the limiting strip, it is used to install the electromagnet, and the welding components of the power cabinet can be adsorbed and fixed by the electromagnet. In this way, clamping can be avoided, and the stability is relatively high after installation. The magnetic adsorption force can also be adjusted by the current, which is convenient for the adjustment of the welding components and is relatively easy to use. Through the setting of the hydraulic cylinder, it is used to adjust the inclination angle of the angle-adjusting plate, so as to adapt to different welding angles, which is relatively easy to use. Through the setting of the second limiting cover plate and the first limiting cover plate, it is used to clamp and install the electromagnet, and the installation is relatively convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 Schematic three-dimensional structure of a power cabinet welding device of the present invention Figure 1 ; Figure 2 Schematic three-dimensional structure of a power cabinet welding device of the present invention Figure 2 ; Figure 3 Schematic three-dimensional structure diagram of the welding mechanism in a power cabinet welding device of the present invention; Figure 4 Schematic three-dimensional structure diagram of the cooling jacket in a power cabinet welding device of the present invention; Figure 5 Exploded view of the internal structure of the fixed box in a power cabinet welding device of the present invention; Figure 6 Schematic three-dimensional structure diagram of the cooling mechanism in a power cabinet welding device of the present invention; Figure 7 Exploded view of the cooling mechanism in a power cabinet welding device of the present invention; Figure 8 Schematic three-dimensional structure diagram of the end mounting plate in a power cabinet welding device of the present invention.

[0020] In the figure: 1. Welding mechanism; 11. Welding base; 12. Support feet; 13. Welding unit; 14. Adjusting rod; 15. Welding gun; 16. First connecting block; 17. First lead screw; 18. Adjusting cavity; 19. Second lead screw; 110. Guide slide bar; 111. Second connecting block; 2. Limiting mechanism; 21. Cooling sleeve; 22. Plummet plate; 23. End cover; 24. Restricting plate; 25. Connecting pipe; 26. Restricting rod; 27. Fixed box; 28. First connection port; 29. Second connection port; 210. Heat dissipation fins; 211. Third connection port; 212. First support plate; 213. Filter plate; 214. Inner support rod; 3. Cooling mechanism; 31. Bearing seat; 32. Limiting frame; 33. Angle adjusting plate; 34. First limiting cover plate; 35. Hydraulic cylinder; 36. Limiting frame; 37. Side limiting plate; 38. End mounting plate; 39. Second support plate; 310. Second limiting cover plate; 311. Through cavity; 312. Fastening threaded part; 313. Limiting strip. Detailed implementation manners

[0021] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0022] Embodiment 1: Refer to Figures 1 - 5As shown: A power cabinet welding device includes a welding mechanism 1. The welding mechanism 1 includes a welding base 11. The upper end of the welding base 11 is fixedly connected with an adjusting rod 14. A welding unit 13 is arranged outside the adjusting rod 14. The lower end of the welding unit 13 is fixedly connected with a welding gun 15. A limiting mechanism 2 is arranged above the welding mechanism 1. The limiting mechanism 2 includes a cooling sleeve 21. The cooling sleeve 21 is inserted and fixedly connected with the welding gun 15. A third connection port 211 is fixedly communicated above the middle of the outer surface of the cooling sleeve 21. Heat dissipation fins 210 are fixedly connected inside the cooling sleeve 21. One side of the upper end of the welding base 11 is fixedly connected with a fixed box 27. An end cover 23 is installed on the upper end of the fixed box 27. A first connection port 28 is fixedly communicated above the upper end of the end cover 23. One side of the fixed box 27 is fixedly communicated with a second connection port 29. The second connection port 29 is used to connect an air extraction device. One end of the third connection port 211 is fixedly communicated with a connecting pipe 25. The other end of the connecting pipe 25 is fixedly communicated with the first connection port 28. A third connection port 211 is arranged inside the fixed box 27. An inner support rod 214 is fixedly connected to the lower end inside the third connection port 211. A filter plate 213 is arranged above the inner support rod 214.

[0023] In the present invention, through the setting of the cooling sleeve 21, when in use, the heat on the welding gun 15 can be taken out by the heat dissipation fins 210, and the heat on the heat dissipation fins 210 can be dissipated through the flow of air, so as to realize the heat dissipation of the welding gun 15. At the same time, the fumes and dust generated during welding can be adsorbed. After entering the fixed box 27, they are filtered by the filter plate 213, and the dust is collected. In this way, the temperature of the welding gun 15 during work is guaranteed, and it is timely cooled. At the same time, the dust generated by welding is cleaned in time to avoid the phenomena of blockage and electrode oxidation of the welding gun 15, ensuring the smoothness of use. The end cover 23 is installed in a clamping manner with the fixed box 27, which is convenient for the disassembly and installation of the end cover 23, so as to facilitate the disassembly and cleaning of the filter plate 213. At the same time, through the setting of the second connection port 29, the air flow moves from top to bottom. In this way, the filter plate 213 can be installed and positioned by using a clamping method, and the use stability is relatively high.

[0024] Embodiment Two: Figures 1 - 5As shown in the figure, a first support plate 212 is fixedly connected above the middle inside the fixed box 27. Limit plates 24 are fixedly connected to both sides of the welding unit 13. Limit rods 26 are fixedly connected to the upper middle part and the two corners of the lower middle part inside the limit plate 24. A weight plate 22 is fixedly connected to the outer side of the connecting pipe 25. An adjustment cavity 18 is opened at the upper end of the welding base 11 and below the welding unit 13. A second lead screw 19 is rotatably connected inside the adjustment cavity 18. Guide slide rods 110 are fixedly connected to both sides of the middle part inside the adjustment cavity 18. A second connecting block 111 is slidably connected inside the adjustment cavity 18. The welding base 11 is threadedly connected to the second lead screw 19 and slidably connected to the guide slide rods 110. A first lead screw 17 is rotatably connected inside the adjustment rod 14. A first connecting block 16 is slidably connected inside the adjustment rod 14. The first connecting block 16 is threadedly connected to the first lead screw 17. The welding unit 13 is fixedly connected to the first connecting block 16. Support feet 12 are fixedly connected to the four corners of the lower end of the welding base 11.

[0025] In the present invention, through the setting of the first support plate 212, the third connection port 211 is supported to ensure the flow of air. Through the setting of the limit plate 24 and the limit rod 26, the connecting pipe 25 is supported. At the same time, the cross-section of the limit rod 26 is circular, which can reduce the friction on the connecting pipe 25 and make the movement of the connecting pipe 25 smoother. Through the setting of the weight plate 22, the connecting pipe 25 is pulled to avoid the influence of the connecting pipe 25 on welding and ensure the use stability.

[0026] Embodiment 3: According to Figure 1 、 Figure 2 、 Figure 3 、 Figure 6 、 Figure 7 and Figure 8 As shown in the figure, a cooling mechanism 3 is arranged at the upper end of the second connecting block 111. The cooling mechanism 3 includes a bearing seat 31. The bearing seat 31 is fixedly connected to the second connecting block 111. A side limit plate 37 is fixedly connected to one side of the bearing seat 31. The side limit plate 37 is attached to one side of the welding base 11. A second support plate 39 is fixedly connected above the middle inside the bearing seat 31. An end mounting plate 38 is installed at the upper end of the second support plate 39. A limiting frame 32 is fixedly connected to one side of the upper end of the end mounting plate 38. An angle adjustment plate 33 is rotatably connected to one side of the upper end of the bearing seat 31. A hydraulic cylinder 35 is rotatably connected between the lower middle part of one side of the angle adjustment plate 33 and one side of the side limit plate 37. Limiting frames 36 are fixedly connected to both the upper and lower parts of the middle of one side of the angle adjustment plate 33. A first limiting cover plate 34 is fixedly connected to one end of the limiting frame 36. A through cavity 311 is penetrated and opened at the upper end of the end mounting plate 38 and below the limiting frame 32. Fastening threaded parts 312 are fixedly connected to both sides of the middle part of the lower end of the limiting frame 32. A second limiting cover plate 310 is arranged below the limiting frame 32. Limiting strips 313 are fixedly connected to both sides of the middle part of the lower end of the limiting frame 32.

[0027] In the present invention, through the setting of the lateral restraint plate 37, it is used to enhance the guiding effect on the bearing seat 31 and ensure the use stability. Through the setting of the limiting frame 32, the welded components of the power cabinet are supported to prevent the contact between the lower ends of the welded parts, which may cause the heat to rise and affect the normal operation of the internal components of the welding base 11. Through the setting of the limiting frame 36 and the limiting strip 313, they are used to install the electromagnet. The electromagnet can adsorb and fix the welded components of the power cabinet. In this way, clamping can be avoided, and the stability is relatively high after installation. The magnetic adsorption force can also be adjusted by the current, which is convenient for the adjustment of the welded components and is relatively easy to use. Through the setting of the hydraulic cylinder 35, it is used to adjust the inclination angle of the angle-adjusting plate 33, so as to adapt to different welding angles and is relatively easy to use. Through the setting of the second limiting cover plate 310 and the first limiting cover plate 34, they are used to clamp and install the electromagnet, and the installation is relatively convenient.

[0028] The usage method and working principle of this device: When in use, according to the connection angle of the power cabinet components to be welded, control the telescopic movement of the hydraulic cylinder 35 to adjust the inclination angle of the angle-adjusting plate 33. Then, place the power cabinet components to be welded on the limiting frame 32 and the angle-adjusting plate 33. Start the electromagnet to adsorb and limit the power cabinet components. After adjusting the position of the power cabinet components, increase the current in the electromagnet to increase the magnetic adsorption force and fix the power cabinet components. Then, start the welding unit 13. The first lead screw 17 rotates to drive the welding unit 13 to move up and down. The welding gun 15 welds the power cabinet components. At the same time, start the air extraction component to make the air flow enter from the lower end of the cooling sleeve 21, take out the heat from the heat dissipation fins 210 and the welding gun 15, cool the welding gun 15, and at the same time adsorb the smoke and dust generated during welding. The smoke and dust enter the fixed box 27 along with the air flow, and the filter plate 213 adsorbs and filters the smoke and dust. During the up and down movement of the welding unit 13, the connecting pipe 25 slides in the limiting plate 24, and the connecting pipe 25 is pulled by the weight plate 22 to perform the welding operation. After welding is completed, turn off the electromagnet and remove the power cabinet components.

[0029] Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A power cabinet welding device, comprising a welding mechanism (1), characterized in that, The welding mechanism (1) includes a welding base (11). At the upper end of the welding base (11), an adjusting rod (14) is fixedly connected. On the outer side of the adjusting rod (14), a welding unit (13) is arranged. At the lower end of the welding unit (13), a welding gun (15) is fixedly connected. Above the welding mechanism (1), a limiting mechanism (2) is arranged. The limiting mechanism (2) includes a cooling sleeve (21). The cooling sleeve (21) is inserted and fixedly connected with the welding gun (15). Above the middle of the outer surface of the cooling sleeve (21), a third connecting port (211) is fixedly communicated. Inside the cooling sleeve (21), heat dissipation fins (210) are fixedly connected. On one side of the upper end of the welding base (11), a fixed box (27) is fixedly connected. At the upper end of the fixed box (27), an end cover (23) is installed. At the upper end of the end cover (23), a first connecting port (28) is fixedly communicated. On one side of the fixed box (27), a second connecting port (29) is fixedly communicated. The second connecting port (29) is used to connect an air extraction device. One end of the third connecting port (211) is fixedly communicated with a connecting pipe (25). The other end of the connecting pipe (25) is fixedly communicated with the first connecting port (28). Inside the fixed box (27), a third connecting port (211) is arranged. At the lower end inside the third connecting port (211), an inner support rod (214) is fixedly connected. Above the inner support rod (214), a filter plate (213) is arranged.

2. The power cabinet welding equipment according to claim 1, characterized in that: Above the middle inside the fixed box (27), a first support plate (212) is fixedly connected. On both sides of the welding unit (13), limiting plates (24) are fixedly connected. At the two corners above and below the middle inside the limiting plates (24), limiting rods (26) are fixedly connected.

3. The power cabinet welding equipment according to claim 1, characterized in that: On the outer side of the connecting pipe (25), a weight plate (22) is fixedly connected.

4. The power cabinet welding equipment according to claim 2, characterized in that: Above the upper end of the welding base (11) and below the welding unit (13), an adjusting cavity (18) is formed. Inside the adjusting cavity (18), a second lead screw (19) is rotatably connected. On both sides of the middle inside the adjusting cavity (18), guiding slide rods (110) are fixedly connected. Inside the adjusting cavity (18), a second connecting block (111) is slidably connected. The welding base (11) is threadedly connected with the second lead screw (19). The welding base (11) is slidably connected with the guiding slide rods (110). Inside the adjusting rod (14), a first lead screw (17) is rotatably connected. Inside the adjusting rod (14), a first connecting block (16) is slidably connected. The first connecting block (16) is threadedly connected with the first lead screw (17). The welding unit (13) is fixedly connected with the first connecting block (16). At the four corners of the lower end of the welding base (11), support feet (12) are fixedly connected.

5. The power cabinet welding equipment according to claim 4, wherein: Above the upper end of the second connecting block (111), a cooling mechanism (3) is arranged. The cooling mechanism (3) includes a bearing seat (31). The bearing seat (31) is fixedly connected with the second connecting block (111). On one side of the bearing seat (31), a side limiting plate (37) is fixedly connected. The side limiting plate (37) is in contact with one side of the welding base (11).

6. The power cabinet welding equipment according to claim 5, wherein: Above the middle inside the bearing seat (31), a second support plate (39) is fixedly connected. At the upper end of the second support plate (39), an end mounting plate (38) is installed. On one side of the upper end of the end mounting plate (38), a limiting frame (32) is fixedly connected.

7. The power cabinet welding equipment according to claim 6, characterized in that: On one side of the upper end of the bearing seat (31), an angle adjusting plate (33) is rotatably connected. A hydraulic cylinder (35) is rotatably connected between the lower part of the middle of one side of the angle adjusting plate (33) and one side of the side limiting plate (37).

8. The power cabinet welding equipment according to claim 7, characterized in that: On both the upper and lower parts of the middle of one side of the angle adjusting plate (33), a limiting frame (36) is fixedly connected. One end of the limiting frame (36) is fixedly connected with a first limiting cover plate (34).

9. The power cabinet welding equipment according to claim 8, characterized in that: A through cavity (311) is formed through the upper end of the end mounting plate (38) and below the limiting frame (32). On both sides of the middle of the lower end of the limiting frame (32), fastening threaded parts (312) are fixedly connected. A second limiting cover plate (310) is arranged below the limiting frame (32).

10. The power cabinet welding equipment according to claim 9, characterized in that: On both sides of the middle of the lower end of the limiting frame (32), limiting strips (313) are fixedly connected.

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