Welding device and welding process for distribution box

Abstract

The invention discloses a welding device and a welding process for a distribution box, which belongs to the field of welding technology and includes a welding base, wherein four corner frame docking modules corresponding to the four corner positions of the welding base are arranged above the welding base, and the corner frame docking modules include a docking block, an outer top block, an angle-shaped vertical sealing block and an angle-shaped oblique sealing block, wherein the docking block rotates on the outside of the distribution box to drive the angle-shaped vertical sealing block to be positioned at the corner frame docking position of the side plate of the distribution box. In the invention, the movable docking block is fastened to the outside of the docking position of the corner frame of the side plate, and the angle-shaped vertical sealing block cooperates with the angle-shaped oblique sealing block to supplement the staggered space at the corner frame docking position from the outside. The inner beam body positioning module fastened to the inner side of the side plate is used for aligning and clamping the spliced ​​beam, and at the same time, the staff manually adjusts each spliced ​​beam to the specified welding position, and two inner welding parts weld the spliced ​​beam to the inner wall of the side plate of the distribution box from the inside and the outside respectively, so as to stably and effectively complete the fixed-point welding operation and improve the welding efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of welding, and in particular to a welding device and a welding process for a distribution box. Background Art

[0002] The distribution box is composed of four side panels, a back panel and multiple splicing beams connected to the inner wall of the side panels. The splicing beams are positioned inside the distribution box for horizontal connection of components. The four side panels are welded to the back panel by the electrical box vertical angle welding machine. The front of the four side panels are welded with the outward-expanding corner frame part, which is adapted to the box door structure. The corner frame part on the front of the side panel is also spliced ​​to form the vertical angle part. There is a space between the corner frame and the front of the side panel for the box door to enter. The welding area is on the front, so the welding of this part is done by the staff manually holding the welding gun. The corner frame part is spliced ​​by the staff. There is a staggered space at the rear of the spliced ​​vertical angle part, which makes it impossible to effectively tighten and constrain the various parts of the corner frame and fill the space during the welding process, which makes it easy for the staff to dislocate and separate due to the welding contact during welding. At the same time, the spliced ​​beams are manually aligned and positioned on the inner wall of the corresponding side panel by the staff, and then the welding operation is performed while positioning, which complicates the operation process and makes it impossible for the staff to stably and effectively complete the welding between the side panels of the distribution box and the fixed-point welding of the spliced ​​beams on the inner wall of the side panel, affecting the welding efficiency of the distribution box. Summary of the invention

[0003] In order to overcome the above-mentioned defects of the prior art, the present invention provides a welding device and a welding process for a distribution box, wherein a movable docking block is arranged to be fastened to the outside of the docking point of the corner frame on the side panel, and the angular vertical sealing block cooperates with the angular oblique sealing block to fill the staggered space at the docking point of the corner frame from the outside, thereby effectively completing the splicing, fastening and space filling operations of the various parts of the corner frames on adjacent side panels, and the inner beam body positioning module fastened to the inner side of the side panel is used to align and clamp the spliced ​​beams, while the staff manually adjusts each spliced ​​beam to a designated welding position, and the inner welding parts move along the long side of the support plate on the inner side of the support plate, so that the two inner welding parts weld the spliced ​​beams to the inner wall of the side panel of the distribution box from the inside and the outside respectively, so that the welding between the side panels of the distribution box and the fixed-point welding of the spliced ​​beams on the inner wall of the side panel can be stably and effectively completed, thereby improving the welding efficiency, so as to solve the problems raised in the above-mentioned background technology.

[0004] To achieve the above object, the present invention provides the following technical solutions:

[0005] The first object of the present invention is to provide a welding device for a distribution box, comprising a welding base, four corner frame docking modules corresponding to the four corners of the welding base are arranged above the welding base, the corner frame docking module comprises a docking block, an outer top block, an angular vertical sealing block and an angular oblique sealing block, the docking block rotates outside the distribution box to drive the angular vertical sealing block to be positioned at the corner frame docking position of the side plate of the distribution box, the angular oblique sealing block is positioned above the angular vertical sealing block through the outer top block to press against the corner frame docking position of the side plate of the distribution box from the outside, and the angular vertical sealing block cooperates with the angular oblique sealing block The staggered space at the joint of the corner frame of the side panel of the distribution box is supplemented to fasten the spliced ​​distribution box from the joint of the corner frame; two inner beam positioning modules symmetrical up and down are provided between the two corner frame docking modules in the longitudinal position, and the inner beam positioning module includes a positioning buckle plate, a support plate and a top beam, and the positioning buckle plate and the top beam are fastened to the inner side of the spliced ​​distribution box through the support plate, and two inner welding parts distributed up and down are slidably connected between the support plate and the top beam, and the inner welding parts move along the long side of the support plate to weld and position the spliced ​​beam on the inner side of the positioning buckle plate to the inner wall of the side panel of the distribution box.

[0006] Furthermore, vertical poles are provided at the four corners of the welding base, and the top ends of the vertical poles are fixedly connected to the bottom of the docking block, so that the corner frame docking module can be stably positioned on the outside of the corner frame corresponding to the distribution box through the vertical poles. A turntable is fixedly connected to the bottom end of the vertical pole, and the turntable is rotatably connected to the inside of the welding base. The turntable rotates inside the welding base, so that the vertical pole can drive the corner frame docking module at the top to rotate together on the outside of the welding base, so as to effectively control the corner frame part of the corner frame docking module close to the corresponding side panel of the distribution box.

[0007] Furthermore, the outer top block is fixedly connected to the top of the docking block, the angle vertical sealing block is fixedly connected to the notch position at the top of the docking block, and the angle oblique sealing block is fixedly connected to the middle position of the front side wall of the outer top block, so that the docking block, the outer top block, the angle vertical sealing block and the angle oblique sealing block are stably combined, so that when the docking block is fastened to the corner frame area after the two adjacent side panels are spliced ​​from the outside, the outer top block can respectively press against the edge parts of the two side panels that expand outward from the outside, and tighten and fix the two spliced ​​side panels in another area. At the same time, the angle vertical sealing block and the angle oblique sealing block can be positioned at the docking place of the corner frame of the side panels of the distribution box, effectively supplementing the staggered space at the docking place of the corner frame of the side panels of the distribution box from the outside, so as to effectively complete the splicing and multi-area fixed-point fastening operations of the side panels of the distribution box, so that when the staff operates the welding gun to weld the corner frame part, it will not cause misalignment at the docking place of the side panels and corner frames, thereby improving the welding effect at the docking place of the corner frames of the side panels of the distribution box.

[0008] Furthermore, two symmetrically distributed pressure blocks are provided on the front side of the outer top block, and a rotating rod is fixedly connected to the top of the pressure block, and the rotating rod is rotatably connected to the top of the outer top block. The pressure block is parallel to the front side wall of the outer top block, so that the pressure block can be rotated on the front side of the outer top block through the rotating rod, and the position of the pressure block is adjusted so that the two pressure blocks can be rotated toward the inner side of the side panel of the distribution box, so as to clamp the edge part of the corner frame of the side panel from the inside through the pressure block.

[0009] Furthermore, the positioning gusset plate and the top beam are both fixedly connected to the top of the support plate, the top beam is located outside the positioning gusset plate, and the top of the support plate is fixedly connected with a side beam located outside the top beam.

[0010] Furthermore, the inner welded part is fixedly connected with a connecting block, the inner welded part of the welded inner part is fixedly connected to the bottom of the connecting block, and the inner welded part of the welded outer part is fixedly connected to the top of the connecting block, stably combining the two inner welded parts, and a through groove is opened at the bottom of the positioning clip plate, and the through groove provides the inner welded part with a moving space, and the front end of the inner welded part of the welded inner part is slidably connected to the inside of the through groove, and the side beam can constrain the inner welded part from the tail end, and the positioning clip plate and the top beam cooperate to constrain the inner welded part from the middle area and the top of the inner welded part respectively, so that the two inner welded parts can stably and effectively move along the long side of the pallet on the inner side of the pallet, adjust the position of the inner welded part and weld the splicing beam to the inner wall of the corresponding side panel of the distribution box.

[0011] Furthermore, a positioning column is provided on the outer side of the inner beam body positioning module, and the positioning column is fixedly connected to the support plate and the side beam, and the two inner welded parts distributed up and down are connected together through the positioning column, and both end parts of the inner welded parts are connected to a positioning column to stably combine the two corresponding inner welded parts, and the bottom end of the positioning column is close to the inner wall of the distribution box to effectively support and position the inner welded parts on the inner side of the corresponding side panel of the distribution box.

[0012] A second object of the present invention is to provide a welding process for a welding device for a distribution box, comprising the following steps:

[0013] S1, the two side panels of the distribution box connecting back panel and the other two side panels are clamped on the inner side of the welding base, the four docking blocks are rotated on the outer side of the distribution box to approach the docking place of the corner frame of the side panel of the distribution box, and are fastened on the outer side of the docking place of the corner frame of the side panel, the angular vertical sealing block and the angular oblique sealing block cooperate to fill the staggered space at the docking place of the corner frame of the side panel of the distribution box, and the corner frame docking module completes the splicing and fastening of adjacent side panels from the outside;

[0014] S2, the two pressing blocks are rotated toward the inner side of the side plate of the distribution box, and the edge of the corner frame of the side plate is clamped from the inner side. The staff operates the welding gun to weld the side plate of the distribution box from the planned area between the two pressing blocks;

[0015] S3, the spliced ​​beams are clamped inside the corresponding positioning gussets, and the positions of the spliced ​​beams are manually adjusted, and the inner beam body positioning modules are clamped and positioned inside the side panels at the corresponding longitudinal positions, so as to position the spliced ​​beams at the designated positions on the inner walls of the side panels;

[0016] S4, the inner welding parts move along the long side of the support plate on the inner side of the support plate, and the two inner welding parts weld the splicing beam to the inner wall of the side plate of the distribution box from the inside and the outside respectively, completing the cabinet welding operation of the distribution box.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] The present invention positions the pre-assembled distribution box back plate and four side plates by setting a welding base, and the four docking blocks rotate on the outside of the distribution box to be fastened to the docking positions of the corner frames on the side plates. The angular vertical sealing blocks cooperate with the angular oblique sealing blocks to fill the staggered space at the docking positions of the corner frames from the outside. The splicing, fastening and space filling operations of the corner frame parts on the adjacent side plates are effectively completed through the corner frame docking modules, so that the dislocation and separation of the corner frame parts due to welding contact are avoided when the corner frame parts are welded. The inner beam positioning module fastened on the inner side of the side plate is used for alignment, clamping and splicing. The staff manually adjusts each spliced ​​beam to the designated welding position at the same time, which can effectively position each spliced ​​beam at the designated position on the inner wall of the side panel. The inner welding parts move along the long side of the pallet on the inner side of the pallet, so that the two inner welding parts weld the spliced ​​beam to the inner wall of the side panel of the distribution box from the inside and the outside respectively, which simplifies the operation process and enables the staff to stably and effectively complete the welding between the side panels of the distribution box and the fixed-point welding of the spliced ​​beam on the inner wall of the side panel, thereby improving the welding effect of the distribution box and improving the welding efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solution in the embodiment, the drawings in the embodiment are briefly introduced below.

[0020] Figure 1 It is a structural schematic diagram of the present invention;

[0021] Figure 2 It is a structural schematic diagram of the present invention in use;

[0022] Figure 3 It is a side view structural schematic diagram of the present invention;

[0023] Figure 4 It is a schematic diagram of the partially separated structure of the present invention;

[0024] Figure 5 It is a structural schematic diagram of another perspective of partial separation of the present invention;

[0025] In the figure: 1. welding base; 11. vertical pole; 12. turntable; 2. corner frame docking module; 21. docking block; 22. outer top block; 23. angular vertical sealing block; 24. angular oblique sealing block; 25. pressure block; 251. rotating rod; 3. inner beam positioning module; 31. positioning buckle plate; 32. support plate; 33. top beam; 34. side beam; 35. through groove; 4. inner welding part; 41. connecting block; 5. positioning column. DETAILED DESCRIPTION

[0026] The following is a clear and complete description of the technical solution in the embodiment of the present invention in conjunction with the accompanying drawings in the embodiment of the present invention. Figures 1 to 5 The detailed description of the structure will clearly show that the structural contents mentioned in the following embodiments are all based on the drawings in the specification.

[0027] See also Figure 1 to Figure 5 The embodiment of the present invention provides a welding device for a distribution box, including a welding base 1, and four corner frame docking modules 2 corresponding to the four corners of the welding base 1 are arranged above the welding base 1. The corner frame docking module 2 includes a docking block 21, an outer top block 22, an angular vertical sealing block 23 and an angular oblique sealing block 24. The docking block 21 rotates outside the distribution box to drive the angular vertical sealing block 23 to be positioned at the corner frame docking position of the side plate of the distribution box. The angular oblique sealing block 24 is positioned above the angular vertical sealing block 23 through the outer top block 22 to press against the corner frame docking position of the side plate of the distribution box from the outside. The angular vertical sealing block 23 cooperates with the angular oblique sealing block 24. The staggered space at the joint of the corner frame of the side panel of the distribution box is supplemented to fasten the spliced ​​distribution box from the joint of the corner frame; two upper and lower symmetrical inner beam positioning modules 3 are provided between the two corner frame docking modules 2 in the longitudinal position, and the inner beam positioning module 3 includes a positioning buckle plate 31, a support plate 32 and a top beam 33. The positioning buckle plate 31 and the top beam 33 are fastened to the inner side of the spliced ​​distribution box through the support plate 32. Two internal welding parts 4 distributed up and down are slidably connected between the support plate 32 and the top beam 33. The internal welding parts 4 move along the long side of the support plate 32 to weld and position the spliced ​​beam on the inner side of the positioning buckle plate 31 to the inner wall of the side panel of the distribution box.

[0028] The welding base 1 is used to connect the pre-assembled distribution box back plate and four side plates. The two side plates of the distribution box connecting the back plate and the other two side plates are clamped on the inner side of the welding base 1. Vertical poles 11 are provided at the four corners of the welding base 1. The top of the vertical pole 11 is fixedly connected to the bottom of the docking block 21, so that the corner frame docking module 2 can be stably positioned on the outer side of the corner frame corresponding to the distribution box through the vertical pole 11. A turntable 12 is fixedly connected to the bottom end of the vertical pole 11. The turntable 12 is rotatably connected to the inside of the welding base 1. The turntable 12 rotates inside the welding base 1, so that the vertical pole 11 can drive the corner frame docking module 2 at the top to rotate together on the outer side of the welding base 1, so as to effectively control the corner frame portion of the corner frame docking module 2 close to the corresponding side plate of the distribution box. The outer top block 22 is fixedly connected to the top of the docking block 21, the angular vertical sealing block 23 is fixedly connected to the notch position of the top of the docking block 21, and the angular oblique sealing block 24 is fixedly connected to the middle position of the front side wall of the outer top block 22. The docking block 21, the outer top block 22, the angular vertical sealing block 23 and the angular oblique sealing block 24 are stably combined, so that when the docking block 21 is fastened from the outside to the corner frame area after the adjacent two side panels are spliced, the outer top block 22 can respectively press against the outwardly expanding edges of the two side panels from the outside. Part, the two spliced ​​side panels are tightened and fixed in another area, and at the same time, the angular vertical sealing block 23 and the angular oblique sealing block 24 can be positioned at the joint of the corner frame of the side panel of the distribution box, effectively filling the staggered space at the joint of the corner frame of the side panel of the distribution box from the outside, so as to effectively complete the splicing and multi-area fixed-point fastening operations of the side panels of the distribution box, so that when the staff operates the welding gun to weld the corner frame part, it will not cause misalignment of the joint of the side panel and the corner frame, thereby improving the welding effect of the joint of the corner frame of the side panel of the distribution box.

[0029] Two symmetrically distributed pressing blocks 25 are arranged on the front side of the outer top block 22, and a rotating rod 251 is fixedly connected to the top of the pressing block 25, and the rotating rod 251 is rotatably connected to the top of the outer top block 22, so that the pressing block 25 can move on the front side of the outer top block 22. The pressing block 25 is parallel to the front side wall of the outer top block 22, so that the pressing block 25 can be rotated on the front side of the outer top block 22 through the rotating rod 251, and the position of the pressing block 25 is adjusted so that the two pressing blocks 25 can be rotated toward the inner side of the side plate of the distribution box, so as to clamp the edge of the corner frame of the side plate from the inner side through the pressing block 25.

[0030] The positioning plate 31 and the top beam 33 are both fixedly connected to the top of the support plate 32. The two ends of the support plate 32 are in close contact with the inner wall of the corresponding side plate of the distribution box, so that the positioning plate 31 and the top beam 33 are fastened to the inner side of the spliced ​​distribution box through the support plate 32. The top beam 33 is located on the outside of the positioning plate 31, and the top of the support plate 32 is fixedly connected with the side beam 34 located on the outside of the top beam 33, so that a space for storing the internal welded parts 4 is formed between the positioning plate 31, the support plate 32 and the side beam 34, ensuring that the internal welded parts 4 can be stably positioned in the inner beam body positioning module 3 for use. A positioning column 5 is provided on the outer side of the inner beam body positioning module 3, and the positioning column 5 is fixedly connected to the support plate 32 and the side beam 34. The two inner welded parts 4 distributed up and down are connected together through the positioning column 5. Both end parts of the inner welded parts 4 are connected to a positioning column 5 to stably combine the two corresponding inner welded parts 4. The bottom end of the positioning column 5 is close to the inner wall of the distribution box to effectively support and position the inner welded parts 4 on the inner side of the corresponding side panel of the distribution box.

[0031] The inner welded part 4 is fixedly connected with a connection block 41. The inner welded part 4 of the welded inner part is fixedly connected to the bottom of the connection block 41, and the inner welded part 4 of the welded outer part is fixedly connected to the top of the connection block 41, so as to stably combine the two inner welded parts 4. A through slot 35 is provided at the bottom of the positioning clip plate 31. The through slot 35 provides a moving space for the inner welded part 4. The front end of the inner welded part 4 of the welded inner part is slidably connected inside the through slot 35. The side beam 34 can constrain the inner welded part 4 from the tail end. The positioning clip plate 31 cooperates with the top beam 33 to constrain the inner welded part 4 from the middle area and the top of the inner welded part 4, respectively, so that the two inner welded parts 4 can stably and effectively move along the long side of the pallet 32 ​​on the inner side of the pallet 32, adjust the position of the inner welded part 4 and weld the splicing beam to the inner wall of the corresponding side plate of the distribution box.

[0032] The welding base 1 positions the pre-assembled back plate and four side plates of the distribution box. The four docking blocks 21 are controlled by the corresponding vertical poles 11 to move outside the distribution box. The docking blocks 21 drive the outer top blocks 22, the angular vertical sealing blocks 23 and the angular oblique sealing blocks 24 to approach the corner frames on the side plates. The docking blocks 21 are fastened to the outside of the docking point of the corner frames on the side plates. The outer top blocks 22 press against the corner frames from the outside. The angular vertical sealing blocks 23 and the angular oblique sealing blocks 24 cooperate to fill the staggered space at the docking point of the corner frames from the outside. The corner frame docking module 2 effectively completes the splicing, fastening and space filling operations of the various parts of the corner frames on the adjacent side plates to avoid the dislocation and separation due to welding contact when the corner frame parts are welded. Each splicing beam is clamped inside each positioning buckle plate 31 positioned on the inner side of the side plate, and the splicing beam is clamped in position. The staff manually adjusts each splicing beam to the specified welding position, which can effectively position each splicing beam at the specified position on the inner wall of the side plate. The inner welding parts 4 move along the long side of the support plate 32 on the inner side of the support plate 32, so that the two inner welding parts 4 weld the splicing beam to the inner wall of the side plate of the distribution box from the inside and the outside respectively, completing the cabinet welding operation of the distribution box, simplifying the operation process, and enabling the staff to stably and effectively complete the welding between the side plates of the distribution box and the fixed-point welding of the splicing beam on the inner wall of the side plate, thereby improving the welding effect of the distribution box and improving the welding efficiency.

[0033] The working principle of the present invention is as follows: the components of the distribution box are clamped on the inner side of the welding base 1, and the four docking blocks 21 are rotated on the outer side of the distribution box to approach the docking place of the corner frame of the side plate of the distribution box. The docking block 21 and the outer top block 22 are fastened on the outer side of the docking place of the corner frame of the side plate. The angular vertical sealing block 23 and the angular oblique sealing block 24 cooperate to make up for the staggered space at the docking place of the corner frame of the side plate of the distribution box, and complete the splicing and fastening of the adjacent side plates from the outside. The two pressing blocks 25 are rotated toward the inner side of the side plate of the distribution box to clamp the edge part of the corner frame of the side plate from the inside. The staff operates the welding gun by The side panels of the distribution box are welded in the planned area between the two pressing blocks 25, and the spliced ​​beams are clamped inside the corresponding positioning buckle plates 31. The positions of the spliced ​​beams are manually adjusted by the staff. The inner beam body positioning module 3 is clamped and positioned on the inner side of the side panel at the corresponding longitudinal position, and each spliced ​​beam is positioned at a specified position on the inner wall of the side panel. The inner welding parts 4 move on the inner side of the support plate 32 along the long side of the support plate 32. The two inner welding parts 4 weld the spliced ​​beams to the inner wall of the side panel of the distribution box from the inside and the outside respectively, completing the cabinet welding operation of the distribution box.

[0034] The embodiment of the present invention further provides a welding process for a welding device for a distribution box, comprising the following steps:

[0035] S1, the two side panels of the distribution box connecting the back panel and the other two side panels are clamped on the inner side of the welding base 1, and the four docking blocks 21 are rotated on the outside of the distribution box to approach the docking place of the corner frame of the side panel of the distribution box, and are fastened on the outside of the docking place of the corner frame of the side panel. The angular vertical sealing block 23 and the angular oblique sealing block 24 cooperate to supplement the staggered space at the docking place of the corner frame of the side panel of the distribution box, and the corner frame docking module 2 completes the splicing and fastening of the adjacent side panels from the outside;

[0036] S2, the two pressing blocks 25 rotate toward the inside of the side plate of the distribution box, clamp the edge of the corner frame of the side plate from the inside, and the staff operates the welding gun to weld the side plate of the distribution box from the planned area between the two pressing blocks 25;

[0037] S3, the spliced ​​beams are clamped inside the corresponding positioning buckle plates 31, and the positions of the spliced ​​beams are manually adjusted. The inner beam body positioning modules 3 are clamped and positioned inside the side panels at the corresponding longitudinal positions, so as to position the spliced ​​beams at the designated positions on the inner walls of the side panels;

[0038] S4, the inner welding parts 4 move along the long side of the support plate 32 on the inner side of the support plate 32, and the two inner welding parts 4 weld the splicing beam to the inner wall of the side plate of the distribution box from the inside and the outside respectively, completing the cabinet welding operation of the distribution box.

[0039] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A welding device for a distribution box, comprising a welding base (1), characterized in that: Four corner frame docking modules (2) are provided above the welding base (1) and correspond to the four corners of the welding base (1). The corner frame docking module (2) comprises a docking block (21), an outer top block (22), an angle-shaped vertical sealing block (23) and an angle-shaped oblique sealing block (24). The docking block (21) rotates outside the distribution box to drive the angle-shaped vertical sealing block (23) to be positioned at the corner frame docking position of the side plate of the distribution box. The angle-shaped oblique sealing block (24) is positioned above the angle-shaped vertical sealing block (23) through the outer top block (22) to press against the corner frame docking position of the side plate of the distribution box from the outside. The angle-shaped vertical sealing block (23) and the angle-shaped oblique sealing block (24) cooperate to fill the staggered space at the corner frame docking position of the side plate of the distribution box, so as to fasten and splice the distribution box from the corner frame docking position. Two inner beam body positioning modules (3) symmetrical in upper and lower directions are arranged between the two corner frame docking modules (2) in the longitudinal position, the inner beam body positioning module (3) comprising a positioning buckle plate (31), a support plate (32) and a top beam (33), the positioning buckle plate (31) and the top beam (33) being fastened to the inner side of the distribution box after splicing through the support plate (32), two inner welding parts (4) distributed in upper and lower directions are slidably connected between the support plate (32) and the top beam (33), the inner welding parts (4) being movable along the long side of the support plate (32) so as to weld and position the spliced ​​beam inside the positioning buckle plate (31) to the inner wall of the side plate of the distribution box; Two symmetrically distributed pressing blocks (25) are provided on the front side of the outer top block (22); a rotating rod (251) is fixedly connected to the top of the pressing block (25); the rotating rod (251) is rotatably connected to the top of the outer top block (22); and the pressing block (25) is parallel to the front side wall of the outer top block (22).

2. A welding device for a distribution box according to claim 1, characterized in that: Vertical poles (11) are provided at the four corners of the welding base (1), the top ends of the vertical poles (11) are fixedly connected to the bottom of the docking block (21), the bottom ends of the vertical poles (11) are fixedly connected to a turntable (12), and the turntable (12) is rotatably connected inside the welding base (1).

3. A welding device for a distribution box according to claim 1, characterized in that: The outer top block (22) is fixedly connected to the top of the docking block (21), the angular vertical sealing block (23) is fixedly connected to the notch position at the top of the docking block (21), and the angular oblique sealing block (24) is fixedly connected to the middle position of the front side wall of the outer top block (22).

4. A welding device for a distribution box according to claim 1, characterized in that: The positioning gusset plate (31) and the top beam (33) are both fixedly connected to the top of the support plate (32); the top beam (33) is located outside the positioning gusset plate (31); and the top of the support plate (32) is fixedly connected to a side beam (34) located outside the top beam (33).

5. A welding device for a distribution box according to claim 1, characterized in that: The inner welding part (4) is fixedly connected to a connecting block (41); the inner welding part (4) for welding the inner part is fixedly connected to the bottom of the connecting block (41); the inner welding part (4) for welding the outer part is fixedly connected to the top of the connecting block (41); a through slot (35) is provided at the bottom of the positioning buckle plate (31); and the front end of the inner welding part (4) for welding the inner part is slidably connected inside the through slot (35).

6. A welding device for a distribution box according to claim 4, characterized in that: A positioning column (5) is provided on the outside of the inner beam body positioning module (3), the positioning column (5) fixedly connects the support plate (32) and the side beam (34), and the bottom end of the positioning column (5) is in close contact with the inner wall of the distribution box.

7. A welding process for a welding device for a distribution box according to any one of claims 1 to 6, characterized in that: The steps include: S1, the two side panels of the distribution box connecting back panel and the other two side panels are clamped on the inner side of the welding base (1), the four docking blocks (21) are rotated on the outer side of the distribution box to approach the docking position of the corner frame of the side panel of the distribution box, and are fastened on the outer side of the docking position of the corner frame of the side panel, the angular vertical sealing block (23) and the angular oblique sealing block (24) cooperate to fill the staggered space at the docking position of the corner frame of the side panel of the distribution box, and the corner frame docking module (2) completes the splicing and fastening of adjacent side panels from the outside; S2, the two pressing blocks (25) are rotated toward the inside of the side plate of the distribution box to clamp the edge of the corner frame of the side plate from the inside, and the staff operates the welding gun to weld the side plate of the distribution box from the planned area between the two pressing blocks (25); S3, the spliced ​​beams are clamped inside the corresponding positioning buckle plates (31), and the positions of the spliced ​​beams are manually adjusted, and the inner beam body positioning modules (3) are clamped and positioned inside the side plates at the corresponding longitudinal positions, so as to position the spliced ​​beams at designated positions on the inner walls of the side plates; S4, the inner welding part (4) moves along the long side of the support plate (32) on the inner side of the support plate (32), and the two inner welding parts (4) respectively weld the spliced ​​beam to the inner wall of the side plate of the distribution box from the inner side and the outer side, thereby completing the cabinet welding operation of the distribution box.

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