Power distribution cabinet body welding device

Abstract

The invention relates to the technical field of power distribution cabinet welding, in particular to a power distribution cabinet body welding device which comprises a base station used for conveying power distribution cabinet bodies in sequence, and the base station is provided with a welding device body fixed through a side arm and used for welding supporting pieces to the inner walls of the power distribution cabinet bodies. The welding device comprises a sliding platform fixed to the side arm. Through active cooling and physical supporting of the cooling plate and the circulating cooling system of the cooling plate on the outer wall of the cabinet body during welding, welding heat input is absorbed and guided out, welding deformation of the thin-wall cabinet body is restrained, and the appearance precision of the cabinet body, the mounting position accuracy of a supporting piece and the welding precision are guaranteed; by means of cooperation of the dust suppression air inlet groove and the suction pump, effective collection of welding fume is achieved, and the dual functions of dust removal, environmental protection and enhanced heat dissipation are synchronously achieved through filtering purification and directional air injection towards the liquid outlet pipe; and the production efficiency and the product consistency of the power distribution cabinet are improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the power distribution cabinet welding technical field, especially to a power distribution cabinet body welding device. BACKGROUND

[0002] As the key equipment of power distribution and control system, the cabinet body structure strength and precision of power distribution cabinet directly affect the installation stability and operation reliability of internal components. The cabinet body is usually welded by plasma arc welding machine, and the welding of internal support is an important link in the manufacturing process. These supports (such as mounting bars or beams) are usually installed in parallel on both sides of the cabinet body, and a plurality of mounting holes are preformed on them, which are used to fix circuit breakers, contactors, terminal blocks and other electrical devices, so that the equipment layout in the cabinet is neat, maintenance is convenient, and the weight and electrical stress of the equipment are effectively shared.

[0003] At present, in the power distribution cabinet manufacturing industry, the welding of such supports still relies more on manual or semi-automatic operation. The operator uses a handheld welding gun or a traditional welding machine to work, and there are generally problems of poor welding position consistency and low production efficiency. Especially when welding thin-walled cabinet, local high-temperature heat input is easy to cause sheet metal deformation, affecting the welding quality, and even causing the positioning deviation of the support, making it difficult to install the subsequent equipment.

[0004] Therefore, it is urgent to develop an automatic device specially used for the internal welding of power distribution cabinet body, which can realize high-quality welding of the support to improve product quality and manufacturing efficiency. SUMMARY

[0005] Therefore, the purpose of the present application is to provide a power distribution cabinet body welding device to solve the problem that the existing support welding device causes sheet metal deformation due to local high-temperature heat input during welding, resulting in positioning deviation of the support and affecting the welding quality.

[0006] In order to achieve the above purpose, the present application provides a power distribution cabinet body welding device, which comprises a base for sequentially conveying a power distribution cabinet body, a welding device fixed on the base by a side arm for welding a support in the inner wall of the power distribution cabinet body. The welding device comprises a sliding platform fixed on the side arm; the bottom of the sliding platform is connected with a cooling plate and a sliding rail device, and the sliding platform can independently drive the cooling plate and the sliding rail device to move. A circulating pump is arranged on the sliding platform, the inlet of the circulating pump is communicated with one end of the cooling plate through an inlet pipe, and the outlet of the circulating pump is communicated with the other end of the cooling plate through an outlet pipe. The sliding rail device comprises a rail rod connected with the sliding platform, a driving sliding part is arranged on the rail rod, a welding part is mounted on the driving sliding part, and the driving sliding part is movable along the rail rod to drive the welding part to perform a welding movement operation. At least two groups of clamping parts for clamping the supporting part are arranged on one side of the rail rod close to the cooling plate. A dust suppression air inlet groove is arranged at the bottom center of the rail rod, and a suction pump is further arranged on the sliding platform, with the air inlet end of the suction pump being communicated with the dust suppression air inlet groove and the air outlet end being directed to the liquid outlet pipe to cool the inside of the liquid outlet pipe.

[0007] Further, the sliding platform has a hollow inner cavity, two groups of sliding blocks are arranged in the inner cavity, and electric control telescopic rods are fixedly installed at two ends of the sliding platform, with the driving ends of the two electric control telescopic rods being connected with the two groups of sliding blocks. The bottoms of the two groups of sliding blocks are connected with connecting plates, a sliding hole is arranged at the bottom of the sliding platform, the two connecting plates extend downward through the sliding hole, and are connected with the cooling plate and the sliding rail device respectively to drive the movement thereof.

[0008] Further, at least one group of magnetic attraction strips is arranged on one side of the cooling plate close to the sliding rail device, and the cooling plate is fixed to the side wall of the power distribution cabinet body through magnetic attraction.

[0009] Further, the height of the cooling plate is consistent with that of the sliding rail device, when the supporting part is pressed and attached to the inner wall of the power distribution cabinet body by the sliding rail device, the cooling plate can abut against the power distribution cabinet body to provide support and resist welding deformation.

[0010] Further, the driving sliding part comprises a sliding frame arranged on the side of the rail rod away from the cooling plate, a shaft rod is rotatably arranged between the frame bodies of the sliding frame, and a driving gear is fixedly sleeved on the shaft rod. A servo motor is arranged at the top of the sliding frame to drive the rotation of the shaft rod. A rack is arranged on the rail rod and engaged with the driving gear. The welding part is fixedly installed on the sliding frame.

[0011] Further, the welding part comprises an electric control mechanical arm fixedly installed on the driving sliding part, a welding gun is mounted at the end of the electric control mechanical arm, and the electric control mechanical arm can drive the welding gun to move and be positioned at a welding position.

[0012] Further, the clamping part comprises a bidirectional screw rod rotatably arranged in the rail rod, and a driving motor is arranged at the bottom of the rail rod to drive the rotation of the bidirectional screw rod. The two sections of external threads with opposite rotation directions on the bidirectional screw rod are respectively screwed with a moving block, and the outer periphery of the moving block is attached to the inner wall of the rail rod to realize moving guidance and limiting; The rail rod is provided with a moving hole on the side close to the cooling plate, and two groups of clamping rods are symmetrically and slidably arranged in the moving hole, and one end of the two groups of clamping rods is respectively connected with the two moving blocks.

[0013] Further, an exhaust box is arranged on the sliding platform close to the liquid outlet pipe, an exhaust hole is arranged on the side close to the liquid outlet pipe of the exhaust box, the outlet of the exhaust hole is arranged towards the liquid outlet pipe, and the exhaust box is connected with the gas outlet end of the suction pump.

[0014] Further, a filter screen is arranged in the exhaust box to filter dust in the suction gas.

[0015] Further, the side arm comprises a transverse electric drive rod fixed to one side of the base, a side supporting rod is connected to the driving end of the transverse electric drive rod, a vertical electric drive rod is connected to the top end of the side supporting rod, and the driving end of the vertical electric drive rod is connected with the welding device to adjust the spatial position of the welding device.

[0016] The beneficial effects of the present application are as follows: through the active cooling and physical support of the cooling plate and its circulating cooling system on the outer wall of the cabinet during welding, the welding heat input is absorbed and led out, the welding deformation of the thin-walled cabinet is inhibited, and the cabinet appearance precision, the installation position accuracy of the supporting member and the welding quality are guaranteed; with the cooperation of the dust suppression air inlet groove and the suction pump, the welding dust is effectively collected, and through filtration and purification and directional air injection towards the liquid outlet pipe, dust removal and environmental protection and heat dissipation are simultaneously realized; the production efficiency and product consistency of the power distribution cabinet are improved. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the present application or prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description are only a part of the present application, and other drawings can also be obtained by those skilled in the art without creative effort.

[0018] Figure 1 It is a first perspective structural schematic view of the embodiment of the present application. Figure 2 It is a first perspective structural schematic view of the welding device of the embodiment of the present application. Figure 3 It is a first perspective structural schematic view of the welding device of the embodiment of the present application. Figure 2 It is an enlarged structural schematic view of A in the embodiment of the present application. Figure 4A schematic diagram of the sliding platform structure of the embodiment of the present application; Figure 5 A schematic diagram of the sliding rail device of the embodiment of the present application from a first perspective; Figure 6 A schematic diagram of the track rod of the embodiment of the present application from a side view; Figure 7 A schematic diagram of the sliding rail device of the embodiment of the present application from a second perspective; Figure 8 A schematic diagram of the cooling plate of the embodiment of the present application; Figure 9 A schematic diagram of the welding device of the embodiment of the present application from a second perspective; Figure 10 A schematic diagram of the Figure 9 A schematic diagram of the enlarged structure of the C; Figure 11 A schematic diagram of the internal structure of the exhaust box of the embodiment of the present application.

[0019] The reference signs in the figure are: 1, base; 2, side arm; 21, transverse electric drive rod; 22, side support rod; 23, vertical electric drive rod; 3, welding device; 31, sliding platform; 311, sliding block; 312, electric control telescopic rod; 313, sliding hole; 314, connecting plate; 4, cooling plate; 41, magnetic attraction strip; 42, circulating pump; 43, liquid inlet pipe; 44, liquid outlet pipe; 5, sliding rail device; 51, track rod; 52, active sliding part; 521, sliding frame; 522, shaft rod; 523, drive gear; 524, servo motor; 525, rack; 53, foot support electric drive rod; 54, clamping part; 541, bidirectional screw rod; 542, moving block; 543, drive motor; 544, clamping rod; 545, moving hole; 55, suction pump; 56, exhaust box; 561, exhaust hole; 562, filter screen; 57, dust suppression air inlet groove; 6, welding part; 61, electric control mechanical arm; 62, welding torch; 7, power distribution cabinet body; 8, support part. DETAILED DESCRIPTION

[0020] To make the purpose, technical solutions and advantages of the present application clearer and more apparent, the present application is further described in detail below in combination with specific embodiments.

[0021] It should be noted that the technical terms or scientific terms used in the present application should be understood as the general meaning understood by those skilled in the art to which the present application belongs, unless otherwise defined. The "first", "second" and similar words used in the present application do not represent any order, quantity or importance, but are only used to distinguish different components. "Include" or "contain" and similar words mean that the elements or objects before the word cover the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connected" or "connected" and similar words are not limited to physical or mechanical connection, but can include electrical connection, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to represent the relative positional relationship, when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0022] As Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Figure 9 , Figure 10 , Figure 11 A power distribution cabinet body welding device, comprising a base 1 for sequentially conveying a power distribution cabinet body 7, a welding device 3 fixed on the base 1 by a side arm 2, for welding a support 8 in the inner wall of the power distribution cabinet body 7. The welding device 3 comprises a sliding platform 31 fixed on the side arm 2; the sliding platform 31 is connected with a cooling plate 4 and a sliding rail device 5 at the bottom, and the sliding platform 31 can independently drive the cooling plate 4 and the sliding rail device 5 to move; The sliding platform 31 is provided with a circulating pump 42, the inlet end of the circulating pump 42 is communicated with one end of the cooling plate 4 through an inlet pipe 43, and the outlet end is communicated with the other end of the cooling plate 4 through an outlet pipe 44, forming a refrigerant circulating channel; The sliding rail device 5 comprises a rail 51 connected with the sliding platform 31, the rail 51 is provided with a driven sliding part 52, the driven sliding part 52 is installed with a welding part 6, and the driven sliding part 52 can move along the rail 51 to drive the welding part 6 to perform welding movement operation; The side of the rail 51 close to the cooling plate 4 is provided with at least two groups of clamping parts 54 for clamping the support 8; The bottom center of the track rod 51 is provided with a dust suppression air inlet groove 57, and the sliding platform 31 is also provided with a suction pump 55, the air inlet end of the suction pump 55 is communicated with the dust suppression air inlet groove 57, and the air outlet end faces the liquid outlet pipe 44 to cool the inside of the liquid outlet pipe 44; the dust suppression air inlet groove 57 extends along the bottom of the track rod 51, and the suction port thereof is located below the welding area and is used for collecting welding fume.

[0023] In the embodiment, first, a conveying belt is arranged on the base 1, the conveying belt conveys the power distribution cabinet body 7 to the welding station, the side arm 2 adjusts the spatial position of the welding device 3 so that the welding device 3 is accurately positioned at the side wall of the power distribution cabinet body 7 on the welding station; then, the sliding platform 31 independently drives the cooling plate 4 and the sliding rail device 5 to move, so that the cooling plate 4 is firmly adsorbed to the outside wall of the power distribution cabinet body 7 through the magnetic adsorption strip 41 to provide stable support and effectively suppress welding thermal deformation, the clamping piece 54 in the sliding rail device 5 synchronously acts to clamp and tightly press the support piece 8 to the predetermined position of the inside wall of the power distribution cabinet body 7; during the welding process, the circulating pump 42 is started to drive the cooling liquid to continuously circulate in the cooling plate 4, so as to timely absorb and take away the welding heat, thereby significantly reducing the deformation of the cabinet body due to thermal stress; the active sliding piece 52 moves along the track rod 51 to drive the welding piece 6 to weld the joint between the support piece 8 and the inner wall of the cabinet body, while the suction pump 55 actively sucks the welding fume through the dust suppression air inlet groove 57, and at the same time, the air flow in the power distribution cabinet is further enhanced to strengthen the heat dissipation of the cabinet itself; the purified gas is directly sprayed to the surface of the liquid outlet pipe 44, which not only realizes effective dust suppression, but also strengthens the heat dissipation of the pipeline and improves the continuous working capacity of the cooling system.

[0024] Preferably, the sliding platform 31 has a hollow inner cavity, two groups of sliding blocks 311 are slidably arranged in the inner cavity; two electric control telescopic rods 312 are fixedly installed at the two ends of the sliding platform 31 respectively, and the driving ends of the two electric control telescopic rods 312 are connected with the two groups of sliding blocks 311 respectively; The bottoms of the two groups of sliding blocks 311 are connected with connecting plates 314 respectively, the bottom of the sliding platform 31 is provided with a sliding hole 313, the two connecting plates 314 extend downward through the sliding hole 313 and are connected with the cooling plate 4 and the sliding rail device 5 respectively to drive the movement thereof.

[0025] The two groups of sliding blocks 311 slidably arranged in the inner cavity of the sliding platform 31 independently move under the driving of the two electric control telescopic rods 312 at the two ends, each sliding block 311 extends downward through the connecting plate 314 connected at the bottom and the sliding hole 313 at the bottom of the sliding platform 31, and independently drives the cooling plate 4 and the sliding rail device 5 to displace, so as to adjust the positions of the cooling support and the welding execution component according to the welding needs.

[0026] Preferably, the cooling plate 4 is provided with at least one set of magnetic strips 41 on the side close to the sliding rail device 5, for being fixed to the side wall of the switch cabinet body 7 by magnetic force; The cooling plate 4 is in line with the height of the sliding rail device 5, and when the sliding rail device 5 presses the support 8 to fit the inner wall of the switch cabinet body 7, the cooling plate 4 can abut the switch cabinet body 7 to provide support and resist welding deformation.

[0027] When the sliding platform 31 drives the cooling plate 4 and the sliding rail device 5 to move, the magnetic strips 41 provided on the side of the cooling plate 4 close to the sliding rail device 5 are firmly fixed to the side wall of the switch cabinet body 7 by magnetic force, and at the same time, since the cooling plate 4 is in line with the height of the sliding rail device 5, when the sliding rail device 5 presses the support 8 to fit the inner wall of the switch cabinet body 7 for welding, the cooling plate 4 abuts the outer side of the cabinet wall synchronously, and through the combined action of physical support and internal circulation cooling, it effectively resists the thermal deformation generated during welding, and guarantees the stability of the cabinet structure shape.

[0028] Preferably, the active sliding part 52 includes a sliding frame 521 slidingly arranged on the track rod 51 away from the cooling plate 4, and a shaft rod 522 rotatably arranged between the frame bodies of the sliding frame 521, and a drive gear 523 fixedly sleeved on the shaft rod 522; The top of the sliding frame 521 is provided with a servo motor 524 for driving the shaft rod 522 to rotate; The track rod 51 is provided with a rack 525 engaged with the drive gear 523; The welding part 6 is fixedly installed on the sliding frame 521.

[0029] The servo motor 524 is started and drives the shaft rod 522 to rotate, and the drive gear 523 fixedly sleeved on the shaft rod 522 rotates, and through engagement with the rack 525 fixedly arranged on the track rod 51, the entire sliding frame 521 is driven to move stably along the length direction of the track rod 51, and the welding part 6 fixedly installed on the sliding frame 521 performs the required welding operation.

[0030] Preferably, the welding part 6 includes an electric control mechanical arm 61 fixedly installed on the active sliding part 52, and a welding gun 62 installed at the end of the electric control mechanical arm 61, and the electric control mechanical arm 61 can drive the welding gun 62 to move and position to the welding position.

[0031] The electric control mechanical arm 61 fixedly installed on the active sliding part 52 is controlled by an external driving system to move in multiple degrees of freedom when the active sliding part 52 moves along the track to the welding station, so as to adjust the spatial posture and position of the welding gun 62 installed at the end thereof, so that the welding nozzle of the welding gun 62 can accurately align the welding seam between the support 8 and the inner wall of the cabinet, thereby completing the welding work.

[0032] Preferably, the clamping member 54 comprises a bidirectional screw rod 541 rotatably arranged inside the track rod 51, and the bottom of the track rod 51 is provided with a driving motor 543 for driving the bidirectional screw rod 541 to rotate; The two sections of external threads with opposite rotation directions on the bidirectional screw rod 541 are respectively screwed with a moving block 542, and the outer periphery of the moving block 542 is in close contact with the inner wall of the track rod 51 to realize moving guidance and limiting. The track rod 51 is provided with a moving hole 545 near one side of the cooling plate 4, and two sets of clamping rods 544 are symmetrically and slidably arranged in the moving hole 545, and one end of each of the two sets of clamping rods 544 is connected with the two moving blocks 542.

[0033] The driving motor 543 is started and drives the bidirectional screw rod 541 to rotate, and the two sections of external threads with opposite rotation directions on the bidirectional screw rod 541 drive the two moving blocks 542 to move synchronously and oppositely inside the track rod 51, and the outer periphery of the moving block 542 is always in close contact with the inner wall of the track rod 51 to realize stable guidance and limiting, and the movement of the moving block 542 drives the clamping rod 544 connected therewith to perform symmetric opening and closing actions, so as to clamp or release the support member 8.

[0034] Preferably, the exhaust box 56 is arranged on the sliding platform 31 near one side of the liquid outlet pipe 44, the exhaust box 56 is provided with an exhaust hole 561 near one side of the liquid outlet pipe 44, the outlet of the exhaust hole 561 is arranged to face the liquid outlet pipe 44, and the exhaust box 56 is in communication with the gas outlet end of the suction pump 55.

[0035] The suction pump 55 discharges and transports the welding dust gas sucked through the dust suppression air inlet groove 57 from the gas outlet end thereof into the exhaust box 56, and then the gas is concentrated and sprayed out of the exhaust hole 561 arranged near one side of the liquid outlet pipe 44 of the exhaust box 56, and the outlet of the exhaust hole 561 is arranged to face, so that the sprayed gas flow directly acts on the outer surface of the liquid outlet pipe 44, thereby strengthening the heat dissipation effect of the cooling liquid in the liquid outlet pipe 44 through convection heat exchange.

[0036] Preferably, the exhaust box 56 is provided with a filter screen 562 for filtering and dust suppression of the suction gas.

[0037] The exhaust box 56 is detachably arranged on the sliding platform 31, and the dust-containing gas sucked by the suction pump 55 first passes through the filter screen 562 inside the exhaust box 56 which can be cleaned in a detachable manner, and the welding dust and particulate matters in the gas are intercepted and filtered to achieve effective dust suppression, and the purified gas is discharged through the exhaust hole 561, thereby avoiding environmental pollution and ensuring that the gas flow sprayed to the liquid outlet pipe 44 is clean, and at the same time, the design facilitates regular disassembly, cleaning or replacement of the filter screen 562 to maintain long-term dust suppression performance.

[0038] Preferably, the side arm 2 comprises a transverse electric drive rod 21 fixed to one side of the base 1, the driving end of the transverse electric drive rod 21 being connected with a side support rod 22, the top end of the side support rod 22 being connected with a vertical electric drive rod 23, the driving end of the vertical electric drive rod 23 being connected with the welding device 3, for adjusting the spatial position of the welding device 3.

[0039] The transverse electric drive rod 21 drives the side support rod 22 connected with the driving end to perform horizontal telescopic movement, so as to adjust the transverse distance of the welding device 3 relative to the switchgear body 7, and then the vertical electric drive rod 23 drives the welding device 3 connected with the driving end to perform vertical lifting movement, so as to jointly realize the precise position adjustment of the welding device 3 in the spatial range with multiple degrees of freedom, ensuring that it can quickly and accurately align the to-be-welded part in the cabinet body of different specifications.

[0040] Preferably, the bottom of the track rod 51 is provided with at least two groups of foot support electric drive rods 53, which can be driven to perform telescopic movement by an external control system and detect the telescopic distance in real time; when adjusting the installation position of the track rod 51 and the support 8 clamped thereby on the inner wall of the switchgear body 7 through the side arm 2 and the sliding platform 31, the foot support electric drive rods 53 are first elongated to a predetermined length, and then abut against the inner bottom plate of the switchgear body 7 when the side arm 2 is adjusted in position, so as to quickly position the installation position of the support 8, and the foot support electric drive rods 53 also play a role in stabilizing and supporting the entire welding device 3.

[0041] Working principle: in use, the base 1 continuously conveys the to-be-welded switchgear body 7 to a predetermined welding station through the conveying belt thereof, and then the side arm 2 adjusts the overall spatial position of the welding device 3 through the coordinated action of the transverse electric drive rod 21 and the vertical electric drive rod 23, so as to accurately align the welding device 3 in the to-be-welded area inside the switchgear body 7 on the welding station; the sliding platform 31 drives the two groups of sliding blocks 311 to move independently through the internal electric control telescopic rods 312 thereof, and then drives the cooling plate 4 and the sliding rail device 5 to move through the connecting plates 314 respectively, so that the cooling plate 4 is adsorbed and fixed to the outer side wall of the cabinet through the magnetic attraction strips 41, and the support 8 clamped and fixed by the clamping piece 54 is pressed against the inner wall of the cabinet through the sliding rail device 5; during the welding process, the circulating pump 42 drives the cooling liquid to circulate in the cooling plate 4 to continuously absorb and discharge the welding heat, effectively inhibiting the deformation of the cabinet during welding, and the active sliding piece 52 moves along the track rod 51 under the drive of the servo motor 524, the drive gear 523 and the rack 525, driving the electric control mechanical arm 61 and the welding gun 62 to automatically weld the weld seam, while the suction pump 55 sucks the welding dust through the dust suppression air inlet groove 57, purifies the clean air flow through the filter screen 562 in the exhaust box 56, and sprays the clean air flow to the surface of the liquid outlet pipe 44 to enhance the heat dissipation efficiency, so as to realize efficient and accurate welding while meeting the multiple requirements of heat management and dust control, and comprehensively improve the welding quality and production efficiency of the switchgear body 7.

[0042] It should be understood by those of ordinary skill in the art that the discussion of any embodiment is merely exemplary and not intended to limit the scope of the application (including the claims) to these examples; the above embodiments or technical features among different embodiments can also be combined, the steps can be implemented in any order, and there are many other changes of different aspects of the application as described above, which are not provided in details for the sake of brevity.

[0043] The present application is intended to cover all such alternatives, modifications, and variations as come within the scope of the broadest possible interpretation of the appended claims. Accordingly, any and all such alternations, modifications, equivalents, improvements and the like are intended to be encompassed by the present application.

Claims

1. A power distribution cabinet body welding device, comprising a base (1) for sequentially conveying a power distribution cabinet body (7), a welding device (3) being fixed on the base (1) by a side arm (2) for welding a support (8) on the inner wall of the power distribution cabinet body (7); characterized in that: the welding device (3) comprises a sliding platform (31) fixed on the side arm (2); the bottom of the sliding platform (31) is connected with a cooling plate (4) and a sliding rail device (5), and the sliding platform (31) can independently drive the cooling plate (4) and the sliding rail device (5) to move; a circulating pump (42) is arranged on the sliding platform (31), the inlet of the circulating pump (42) is communicated with one end of the cooling plate (4) through an inlet pipe (43), and the outlet of the circulating pump (42) is communicated with the other end of the cooling plate (4) through an outlet pipe (44); the sliding rail device (5) comprises a rail rod (51) connected with the sliding platform (31), a driving sliding piece (52) is arranged on the rail rod (51), a welding piece (6) is installed on the driving sliding piece (52), and the driving sliding piece (52) can move along the rail rod (51) to drive the welding piece (6) to perform a welding movement operation; at least two groups of clamping pieces (54) for clamping the support (8) are arranged on one side of the rail rod (51) close to the cooling plate (4); a dust suppression air inlet groove (57) is arranged at the bottom center of the rail rod (51), and a suction pump (55) is further arranged on the sliding platform (31), the air inlet end of the suction pump (55) is communicated with the dust suppression air inlet groove (57), and the air outlet end of the suction pump (55) faces the outlet pipe (44) to cool the inside of the outlet pipe (44). The sliding platform (31) has a hollow inner cavity, two groups of sliding blocks (311) are slidably arranged in the inner cavity, and electric control telescopic rods (312) are fixedly installed at the two ends of the sliding platform (31) respectively; 2. The switchgear cabinet welding apparatus of claim 1, wherein, the driving ends of the two electric control telescopic rods (312) are connected with the two groups of sliding blocks (311) respectively; the bottoms of the two groups of sliding blocks (311) are connected with connecting plates (314) respectively, the bottom of the sliding platform (31) is provided with a sliding hole (313), the two connecting plates (314) extend downward through the sliding hole (313) and are connected with the cooling plate (4) and the sliding rail device (5) respectively to drive the cooling plate (4) and the sliding rail device (5) to move.

3. The switchgear cabinet welding apparatus of claim 1, wherein, At least one group of magnetic attraction strips (41) are arranged on one side of the cooling plate (4) close to the sliding rail device (5) for being fixed on the side wall of the power distribution cabinet body (7) by magnetic force.

4. The switchgear cabinet welding apparatus of claim 3, wherein, The height of the cooling plate (4) is consistent with that of the sliding rail device (5), when the sliding rail device (5) presses and fits the support (8) on the inner wall of the power distribution cabinet body (7), the cooling plate (4) can abut against the power distribution cabinet body (7) to provide support and resist welding deformation.

5. The switchgear cabinet welding apparatus of claim 1, wherein, The active sliding part (52) comprises a sliding frame (521) slidingly arranged on the rail rod (51) away from the cooling plate (4), and an axle rod (522) is rotationally arranged between the frame bodies of the sliding frame (521), and a driving gear (523) is fixedly sleeved on the axle rod (522); A servo motor (524) is arranged on the top of the sliding frame (521) and used for driving the rotation of the axle rod (522); A rack (525) is arranged on the rail rod (51) and engaged with the driving gear (523); The welding part (6) is fixedly installed on the sliding frame (521).

6. The switchgear cabinet welding device according to claim 1 or 5, characterized in that The welding part (6) comprises an electric control mechanical arm (61) fixedly installed on the active sliding part (52), and a welding gun (62) is installed at the tail end of the electric control mechanical arm (61), and the electric control mechanical arm (61) can drive the welding gun (62) to move and position to the welding position.

7. The switchgear cabinet welding apparatus of claim 1, wherein, The clamping part (54) comprises a bidirectional screw rod (541) rotationally arranged in the rail rod (51), and a driving motor (543) is arranged at the bottom of the rail rod (51) and used for driving the rotation of the bidirectional screw rod (541); Two external threads with opposite rotation directions are respectively screwed with a moving block (542) on the bidirectional screw rod (541), and the outer periphery of the moving block (542) is matched with the inner wall of the rail rod (51) to realize the moving guidance and limiting; A moving hole (545) is arranged on one side of the rail rod (51) close to the cooling plate (4), and two groups of clamping rods (544) are symmetrically and slidingly arranged in the moving hole (545), and one end of the two groups of clamping rods (544) is respectively connected with the two moving blocks (542).

8. The switchgear cabinet welding apparatus of claim 1, wherein, An exhaust box (56) is arranged on the sliding platform (31) close to the liquid outlet pipe (44), an exhaust hole (561) is arranged on one side of the exhaust box (56) close to the liquid outlet pipe (44), the outlet of the exhaust hole (561) is arranged towards the liquid outlet pipe (44), and the exhaust box (56) is connected with the gas outlet end of the suction pump (55).

9. The switchgear cabinet welding apparatus of claim 8, wherein, A filter screen (562) is arranged in the exhaust box (56) and used for filtering and dust suppression of the suction gas.

10. The switchgear cabinet welding apparatus of claim 1, wherein, The side arm (2) comprises a transverse electric drive rod (21) fixed on one side of the base (1), a side supporting rod (22) is connected with the driving end of the transverse electric drive rod (21), a vertical electric drive rod (23) is connected with the top end of the side supporting rod (22), the driving end of the vertical electric drive rod (23) is connected with the welding device (3) and used for adjusting the spatial position of the welding device (3).

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