A welding device for electromechanical equipment production and a welding method thereof

Abstract

The application discloses a welding device for electromechanical equipment production and a welding method thereof, which comprises a supporting structure, a fixing structure and a welding structure. The supporting structure comprises a supporting bottom plate, a first annular frame and a second annular frame fixedly connected to the upper end of the supporting bottom plate, annular plates rotatably connected in the first annular frame and the second annular frame, a driving turning assembly provided on the upper end of the supporting bottom plate and connected with the two annular plates, and a plurality of L-shaped supports fixedly connected to the opposite side walls of the two annular plates. The two steel pipes to be welded are respectively conveyed into the two circular cylinder pipes through the auxiliary sliding assembly, and the driving turning assembly can realize the synchronous rotation of the two steel pipes, thereby helping the welding head to comprehensively weld the steel pipes. In addition, the driving turning assembly can realize the working of the cooling fan at the same time, thereby realizing the heat dissipation treatment of the welded part in time after the welding is completed, and guaranteeing the welding quality.

Description

Technical Field

[0001] This invention relates to the field of electromechanical equipment manufacturing technology, and in particular to a welding device and welding method for electromechanical equipment manufacturing. Background Technology

[0002] Steel pipes have a hollow cross-section and a length greater than their diameter. They can be used to transport liquids and powdery solids. In addition, steel pipes can be used to manufacture building frames, support columns, and mechanical supports. When using steel pipes, it is often necessary to weld two steel pipes together.

[0003] In the existing technology, there are devices that can assist electric welders in welding steel pipes. However, most of these devices are mainly used to support the steel pipes and lack a structure that allows the steel pipes to rotate synchronously to improve welding efficiency. Furthermore, the steel pipes need to be cooled down in time after welding to ensure the quality of the weld. To address these issues, we propose a welding device and welding method for the production of electromechanical equipment. Summary of the Invention

[0004] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the invention.

[0005] In view of the problems existing in the welding equipment and welding methods used in the production of electromechanical equipment, the present invention is proposed.

[0006] Therefore, the purpose of this invention is to provide a welding device and welding method for the production of electromechanical equipment. The device uses an auxiliary sliding component to transport the two sections of steel pipe to be welded into two cylindrical tubes respectively. Then, the drive steering component can be used to realize the synchronous rotation of the two sections of steel pipe, which helps the welding head to fully weld the steel pipe.

[0007] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a welding device for the production of electromechanical equipment, comprising: a supporting structure, a fixing structure, and a welding structure. The supporting structure includes a supporting base plate and a first annular frame and a second annular frame fixedly connected to the upper end of the supporting base plate. Annular plates are rotatably connected within both the first and second annular frames. A drive steering assembly connected to the two annular plates is provided at the upper end of the supporting base plate. Multiple L-shaped brackets are fixedly connected to the opposite sidewalls of the two annular plates, and the ends of the multiple L-shaped brackets away from the annular plates are fixedly connected to the same circular tube. A steel pipe to be welded is slidably connected inside the circular tube. An auxiliary sliding assembly that contacts the steel pipe is installed inside the cylindrical tube; the fixing structure includes a housing fixedly connected to the upper end of the cylindrical tube, the lower end of the housing extending into the cylindrical tube, a hydraulic rod fixedly connected to the upper end of the housing, the piston end of the hydraulic rod extending into the housing and connected to a limiting assembly that contacts the steel pipe, the limiting assembly being able to cooperate with the auxiliary sliding assembly for conveying the steel pipe in the initial position, and fixing the limiting assembly after contacting the steel pipe; the welding structure includes a mounting frame fixedly connected to the upper ends of the first and second annular frames, a hydraulic cylinder fixedly connected to the upper end of the mounting frame, and a welding assembly corresponding to the steel pipe connected to the output end of the hydraulic cylinder.

[0008] In a preferred embodiment of the welding apparatus for electromechanical equipment production described in this invention, the drive steering assembly includes a drive motor fixedly connected to the upper end of a support base plate, and the drive motor is correspondingly disposed on one side of the first annular frame. The output end of the drive motor is fixedly connected to a rotating shaft, and the end of the rotating shaft away from the drive motor extends to the second annular frame. A support plate corresponding to the rotating shaft is fixedly connected to the side wall of the second annular frame, and the rotating shaft is rotatably connected to the side wall of the support plate. A rectangular opening corresponding to the rotating shaft is provided on the side wall of both the first and second annular frames. A ring gear is fixedly connected to the outer side wall of the annular plate. A cylindrical gear meshing with the ring gear is fixedly sleeved on the outer side wall of the rotating shaft inside the rectangular opening. A plurality of auxiliary rotating units in contact with the annular plate are evenly distributed on the inner walls of the first and second annular frames.

[0009] In a preferred embodiment of the welding device for the production of electromechanical equipment according to the present invention, the auxiliary rotating unit includes a U-shaped component fixedly connected to the inner walls of the first and second annular frames. The groove of the U-shaped component is opposite to the annular plate, and an auxiliary wheel that contacts the annular plate is rotatably connected in the groove of the U-shaped component. An annular groove corresponding to the auxiliary wheel is provided on the outer wall of the annular plate, and the auxiliary wheel is rotatably connected in the annular groove.

[0010] In a preferred embodiment of the welding device for the production of electromechanical equipment described in this invention, the auxiliary sliding assembly includes two sets of support blocks symmetrically connected to the inner wall of a circular tube, and the support blocks are inclined. A rectangular slot is provided on the side wall of the support block, and an auxiliary roller that contacts the steel pipe is rotatably connected in the rectangular slot. A fastening screw is fixedly connected to the side wall of the support block away from the rectangular slot. A circular hole corresponding to the fastening screw is opened on the side wall of the circular tube. One end of the fastening screw extends through to the outside of the circular hole, and a fastening nut for fixing it is threadedly connected to the side wall of the fastening screw on the outside of the circular tube.

[0011] In a preferred embodiment of the welding device for the production of electromechanical equipment according to the present invention, the limiting component includes a vertical screw rotatably connected to the piston end of a hydraulic rod; a horizontal internal threaded component is fixedly connected to the inner wall of the housing; a crossbar fixed to the inner wall of the housing is provided on the side wall of the internal threaded component; the lower end of the vertical screw extends to the lower side of the internal threaded component; a circular groove is provided at the lower end of the vertical screw; a compression spring is fixedly connected in the circular groove; a U-shaped bracket with the groove opening facing downward is fixedly connected to the lower end of the compression spring; and a limiting roller that contacts the upper end of the pipe is rotatably connected in the groove of the U-shaped bracket.

[0012] As a preferred embodiment of the welding device and welding method for the production of electromechanical equipment described in this invention, the welding assembly includes a mounting base fixedly connected to the lower end of a hydraulic cylinder, and the mounting base is fixed to the piston end of the hydraulic cylinder by fastening bolts. A welding head is fixedly connected to the lower end of the mounting base, and the welding head is correspondingly disposed on the upper side of the welding joint of the two pipes.

[0013] As a preferred embodiment of the welding device for the production of electromechanical equipment according to the present invention, wherein: a rectangular cover opposite to the welding head is fixedly connected to the upper center of the supporting base plate, the rotating shaft passes through the side wall of the rectangular cover, a horizontal mounting plate is fixedly connected inside the rectangular cover, a cooling fan is rotatably connected to the upper end of the mounting plate, the vertical shaft of the cooling fan is connected to the rotating shaft through a linkage unit, the upper end of the rectangular cover has an open structure, and a closed unit corresponding to the cooling fan is provided at the upper end of the rectangular cover.

[0014] As a preferred embodiment of the welding device for the production of electromechanical equipment according to the present invention, the mounting plate is connected to the upper side of the rotating shaft, the linkage unit includes a first bevel gear fixedly sleeved on the outside of the vertical shaft of the cooling fan, and a second bevel gear meshing with the first bevel gear is fixedly sleeved on the outer side wall of the rotating shaft.

[0015] As a preferred embodiment of the welding device for the production of electromechanical equipment described in this invention, the enclosed unit includes an electric push rod fixedly connected to the front and rear side walls of a rectangular cover. The telescopic ends of the electric push rods are fixedly connected to flexible plates. The upper end of the rectangular cover is fixedly connected to two C-shaped strips with opposite slots for limiting the flexible plates, and the flexible plates are slidably connected between the two C-shaped strips.

[0016] A welding method for a welding apparatus used in the production of electromechanical equipment includes the following steps:

[0017] S1. Before welding the steel pipe, the two sections of steel pipe to be welded are slidably inserted into the inside of the cylindrical tube. During the sliding process, the limiting roller in the limiting component is first in contact with the steel pipe and rolling. After the two sections of steel pipe come into contact, the hydraulic rod is activated, so that the vertical screw moves downward and rotates with the cooperation of the internal threaded parts, thereby changing the angle of the limiting roller so that it can fix the steel pipe.

[0018] S2. After the two steel pipe sections are fixed, the welding head in the welding assembly and the drive motor in the drive steering assembly are started at the same time. Under the transmission of cylindrical gear and ring gear, the entire circular tube is rotated and the two steel pipe sections are rotated synchronously. Then the welding head can automatically weld the rotating steel pipe.

[0019] S3. After the welding process is completed, close the welding head and simultaneously start the electric push rod to disengage the two C-shaped strips from the rectangular cover. As the shaft rotates, the cooling fan rotates through the transmission of the first and second bevel gears, which can dissipate heat from the welded steel pipe. After the heat dissipation is completed, turn off the drive motor and reverse the hydraulic rod to rotate the vertical screw to the initial position, disengaging it from the steel pipe and allowing the steel pipe to be easily removed, thus completing the welding work.

[0020] The beneficial effects of the present invention are as follows: The present invention uses an auxiliary sliding component to transport the two sections of steel pipe to be welded into two cylindrical tubes respectively, and then uses a drive steering component to realize the synchronous rotation of the two sections of steel pipe, which helps the welding head to fully weld the steel pipe. In addition, the drive steering component can also realize the operation of the cooling fan while working, so that the weld can be cooled in time after the welding is completed, thus ensuring the quality of the welding. Attached Figure Description

[0021] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the following description of the embodiments will be briefly introduced. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Wherein:

[0022] Figure 1 This is a schematic diagram of the front and side structure of the welding device and welding method for the production of electromechanical equipment according to the present invention;

[0023] Figure 2 This is a side view of the welding apparatus and welding method for the production of electromechanical equipment according to the present invention.

[0024] Figure 3 This is a schematic diagram of the rear structure of the welding apparatus and welding method for the production of electromechanical equipment according to the present invention;

[0025] Figure 4 This is a cross-sectional structural schematic diagram of the welding apparatus and welding method for the production of electromechanical equipment according to the present invention;

[0026] Figure 5 This is a schematic diagram of the internal structure of the rectangular cover of the welding device and welding method for the production of electromechanical equipment of the present invention.

[0027] Figure 6 for Figure 4 A magnified view of the structure at point A in the middle;

[0028] Figure 7 for Figure 4 A magnified schematic diagram of the structure at point B in the middle. Detailed Implementation

[0029] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0030] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0031] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that is mutually exclusive with other embodiments.

[0032] Secondly, the present invention is described in detail with reference to the schematic diagrams. When detailing the embodiments of the present invention, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not according to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of the present invention. In addition, actual fabrication should include three-dimensional spatial dimensions of length, width, and depth.

[0033] Reference Figure 1 - Figure 7 A welding device for manufacturing electromechanical equipment is provided, comprising: a support structure 100, a fixing structure 200, and a welding structure 300. The support structure 100 includes a support base plate 101 and a first annular frame 102 and a second annular frame 103 fixedly connected to the upper end of the support base plate 101. Annular plates 104 are rotatably connected to both the first annular frame 102 and the second annular frame 103. A drive steering assembly connected to the two annular plates 104 is provided at the upper end of the support base plate 101. The drive steering assembly includes a drive motor 107 fixedly connected to the upper end of the support base plate 101, and the drive motor 107 is correspondingly located on one side of the first annular frame 102. A rotating shaft 108 is fixedly connected to the output end of the drive motor 107. The end of the rotating shaft 108 away from the drive motor 107 extends to the second annular frame 103. A support plate corresponding to the rotating shaft 108 is fixedly connected to the side wall of the second annular frame 103, and the rotating shaft is rotatably connected to the side wall of the support plate. Annular plates 104 are rotatably connected to the side walls of both the first annular frame 102 and the second annular frame 103. A rectangular opening corresponding to the rotating shaft 108 is provided. A ring gear 109 is fixedly connected to the outer wall of the annular plate 104. A cylindrical gear 110 that meshes with the ring gear 109 is fixedly sleeved on the outer wall of the rotating shaft 108 inside the rectangular opening. Multiple auxiliary rotating units that contact the annular plate 104 are evenly distributed on the inner walls of the first annular frame 102 and the second annular frame 103. Specifically, the auxiliary rotating unit includes a U-shaped piece 1 fixedly connected to the inner wall of the first annular frame 102 and the second annular frame 103. 11. The slot of the U-shaped part 111 is opposite to the annular plate 104, and an auxiliary wheel 112 that contacts the annular plate 104 is rotatably connected in the slot of the U-shaped part 111. An annular groove corresponding to the auxiliary wheel 112 is provided on the outer wall of the annular plate 104, and the auxiliary wheel 112 is rolled in the annular groove. By driving the steering assembly, the rotation of the two circular tubes 106 can be realized simultaneously, ensuring the synchronization of the welding of the steel pipes on both sides. The auxiliary rotation unit plays a stabilizing role in the rotation of the annular plate 104.

[0034] Furthermore, multiple L-shaped brackets 105 are fixedly connected to the opposite sidewalls of the two annular plates 104, and the ends of the multiple L-shaped brackets 105 away from the annular plates 104 are fixedly connected to the same circular tube 106. The steel pipe to be welded is slidably connected inside the circular tube 106. An auxiliary sliding assembly is provided inside the circular tube 106 to contact the steel pipe. The auxiliary sliding assembly includes two sets of support blocks 113 symmetrically connected to the inner wall of the circular tube 106, and the support blocks 113 are inclined. A rectangular slot is provided on the sidewall of the support block 113, and the rectangular slot allows rotation. An auxiliary roller 114 is connected to the steel pipe. A fastening screw is fixedly connected to the side wall of the support block 113 away from the rectangular groove. A circular hole corresponding to the fastening screw is opened on the side wall of the circular tube 106. One end of the fastening screw passes through to the outside of the circular hole, and a fastening nut is threaded on the side wall of the fastening screw on the outside of the circular tube 106 to fix it. With the use of the auxiliary sliding component, the steel pipe can be supported during the conveying process. The rolling method reduces friction and improves the conveying efficiency. In addition, the support block 113 can be removed for easy replacement.

[0035] The fixing structure 200 includes a housing 201 fixedly connected to the upper end of the circular tube 106. The lower end of the housing extends into the circular tube 106. A hydraulic rod 202 is fixedly connected to the upper end of the housing 201. The piston end of the hydraulic rod 202 extends into the housing 201 and is connected to a limiting component that contacts the steel pipe. In its initial position, the limiting component can cooperate with the auxiliary sliding component for conveying the steel pipe, and after contacting the steel pipe, the limiting component fixes it. The limiting component includes a vertical screw 203 rotatably connected to the piston end of the hydraulic rod 202. A horizontal internal threaded component 204 is fixedly connected to the inner wall of the housing 201, and a crossbar fixed to the inner wall of the housing 201 is provided on the side wall of the internal threaded component 204. The lower end of the vertical screw 203 extends to the lower side of the internal threaded component 204, and a circular groove is opened at the lower end of the vertical screw 203. A clamping device is fixedly connected in the circular groove. Spring 205, with a U-shaped bracket 206 facing downwards fixedly connected to the lower end of the compression spring 205, and a limiting roller 207 rotatably connected to the upper end of the pipe inside the groove of the U-shaped bracket 206. Specifically, before the steel pipe is conveyed, the limiting roller 207 conveys the steel pipe. The compression spring 205 enables the limiting roller 207 to contact the steel pipe and play an auxiliary conveying role. After the steel pipe is in the welding position, the hydraulic rod 202 is activated, causing the vertical screw 203 to move vertically downwards and rotate with the cooperation of the internal thread 204, thereby changing the angle of contact between the limiting roller 207 and the steel pipe and playing a fixing role. After fixing, the compression spring 205 is in a compressed state and squeezes and clamps the steel pipe, and there will be no shaking. In addition, after the steel pipe is welded, the hydraulic rod 202 is activated in the reverse direction, and the limiting roller 207 will return to the initial state and play an auxiliary conveying role again.

[0036] The welding structure 300 includes a mounting frame 301 fixedly connected to the upper ends of the first annular frame 102 and the second annular frame 103. A hydraulic cylinder 302 is fixedly connected to the upper end of the mounting frame 301, and the output end of the hydraulic cylinder 302 is connected to a welding assembly corresponding to the steel pipe. The welding assembly includes a mounting seat 303 fixedly connected to the lower end of the hydraulic cylinder 302, and the mounting seat 303 is fixed to the piston end of the hydraulic cylinder 302 by fastening bolts. A welding head 304 is fixedly connected to the lower end of the mounting seat 303, and the welding head 304 is correspondingly disposed on the upper side of the welding joint of the two pipes. The welding head 304 is prior art. The welding process of the steel pipe by the welding head 304 is also existing technology and will not be described in detail here. Furthermore, a rectangular cover 305 opposite to the welding head 304 is fixedly connected to the upper center of the support base plate 101. The rotating shaft 108 passes through the side wall of the rectangular cover 305. A horizontal mounting plate 306 is fixedly connected inside the rectangular cover 305. A cooling fan 307 is rotatably connected to the upper end of the mounting plate 306. The vertical axis of the cooling fan 307 is connected to the rotating shaft 108 through a linkage unit. The upper end of the rectangular cover 305 is an open structure, and a closed unit corresponding to the cooling fan 307 is provided at the upper end of the rectangular cover 305.

[0037] The mounting plate 306 is connected to the upper side of the rotating shaft 108. The linkage unit includes a first bevel gear 308 fixedly sleeved on the outside of the vertical shaft of the cooling fan 307, and a second bevel gear 309 fixedly sleeved on the outer wall of the rotating shaft 108, meshing with the first bevel gear 308. Under the use of the linkage unit, the rotating shaft 108 is rotated by the driving action of the drive motor 107. At the same time, the steel pipe inside the cylindrical tube 106 and the cooling fan 307 will also rotate synchronously. Furthermore, the enclosure unit includes a fixed connection to the front of the rectangular cover 305. The electric push rod 310 on the rear side wall has a flexible plate 311 fixedly connected to its telescopic end. The upper end of the rectangular cover 305 is fixedly connected to two C-shaped strips 312 with opposite slots for limiting the flexible plate. The flexible plate 311 is slidably connected between the two C-shaped strips 312. By adjusting the position of the flexible plate 311, the closure of the rectangular cover can be released, and the cooling fan 307 can dissipate heat from the welded steel pipe. During the heat dissipation process, the steel pipe also rotates synchronously, which improves the heat dissipation effect and ensures the quality of welding.

[0038] A welding method for a welding apparatus used in the production of electromechanical equipment includes the following steps:

[0039] S1. Before welding the steel pipe, the two sections of steel pipe to be welded are slidably inserted into the inner side of the circular tube 106. During the sliding process, the limiting roller 207 in the limiting component is first in a rolling state in contact with the steel pipe. After the two sections of steel pipe come into contact, the hydraulic rod 202 is activated, so that the vertical screw 203 moves down and rotates with the cooperation of the internal thread 204, thereby changing the angle of the limiting roller 207 so that it can fix the steel pipe.

[0040] S2. After the two steel pipes are fixed, the welding head 304 in the welding assembly and the drive motor 107 in the drive steering assembly are started at the same time. Under the transmission of the cylindrical gear 110 and the ring gear 109, the circular tube 106 is rotated as a whole and the two steel pipes are rotated synchronously. Then the welding head 304 can automatically weld the rotating steel pipe.

[0041] S3. After the welding process is completed, the welding head 304 is closed, and the electric push rod 310 is activated at the same time to make the two C-shaped strips 312 disengage from the rectangular cover 305. While the rotating shaft 108 is rotating, the cooling fan 307 is rotated through the transmission of the first bevel gear 308 and the second bevel gear 309, which can dissipate heat from the welded steel pipe. After the heat dissipation is completed, the drive motor 107 is turned off, and the hydraulic rod 202 is activated in the reverse direction to make the vertical screw 203 rotate to the initial position, disengage from the steel pipe, and then the steel pipe can be easily removed to complete the welding work.

[0042] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A welding apparatus for the production of electromechanical equipment, characterized in that, include: The support structure (100) includes a support base plate (101) and a first annular frame (102) and a second annular frame (103) fixedly connected to the upper end of the support base plate (101). Annular plates (104) are rotatably connected inside the first annular frame (102) and the second annular frame (103). A drive steering assembly connected to the two annular plates (104) is provided at the upper end of the support base plate (101). Multiple L-shaped brackets (105) are fixedly connected to the opposite side walls of the two annular plates (104). The same circular tube (106) is fixedly connected to the end of the multiple L-shaped brackets (105) away from the annular plate (104). A steel pipe to be welded is slidably connected inside the circular tube (106). An auxiliary sliding assembly in contact with the steel pipe is provided inside the circular tube (106). The fixed structure (200) includes a housing (201) fixedly connected to the upper end of a circular tube (106), the lower end of the housing extending into the circular tube (106), and a hydraulic rod (202) fixedly connected to the upper end of the housing (201). The piston end of the hydraulic rod (202) extends into the housing (201) and is connected to a limiting component that contacts the steel pipe. When in the initial position, the limiting component can cooperate with the auxiliary sliding component for conveying the steel pipe, and after contacting the steel pipe, the limiting component plays a fixing role on it. The welding structure (300) includes a mounting frame (301) fixedly connected to the upper end of the first ring frame (102) and the second ring frame (103), wherein a hydraulic cylinder (302) is fixedly connected to the upper end of the mounting frame (301), and the output end of the hydraulic cylinder (302) is connected to a welding component corresponding to the steel pipe. The drive steering assembly includes a drive motor (107) fixedly connected to the upper end of the support base plate (101), and the drive motor (107) is correspondingly disposed on one side of the first ring frame (102). The output end of the drive motor (107) is fixedly connected to a rotating shaft (108). The end of the rotating shaft (108) away from the drive motor (107) extends to the second ring frame (103). A support plate corresponding to the rotating shaft (108) is fixedly connected to the side wall of the second ring frame (103), and the rotating shaft is rotatably connected to the side of the support plate. On the wall, rectangular openings corresponding to the rotating shaft (108) are provided on the side walls of the first ring frame (102) and the second ring frame (103). A ring gear (109) is fixedly connected to the outer wall of the ring plate (104). A cylindrical gear (110) meshing with the ring gear (109) is fixedly sleeved on the outer wall of the rotating shaft (108) inside the rectangular opening. Multiple auxiliary rotating units that contact the ring plate (104) are evenly distributed on the inner walls of the first ring frame (102) and the second ring frame (103). The auxiliary rotation unit includes a U-shaped piece (111) fixedly connected to the inner wall of the first ring frame (102) and the second ring frame (103). The groove of the U-shaped piece (111) is opposite to the ring plate (104), and an auxiliary wheel (112) that contacts the ring plate (104) is rotatably connected in the groove of the U-shaped piece (111). An annular groove corresponding to the auxiliary wheel (112) is provided on the outer wall of the annular plate (104), and the auxiliary wheel (112) is rolled in the annular groove.

2. The welding apparatus for the production of electromechanical equipment according to claim 1, characterized in that: The auxiliary sliding assembly includes two sets of support blocks (113) symmetrically connected to the inner wall of the circular tube (106), and the support blocks (113) are inclined. A rectangular slot is provided on the side wall of the support block (113), and an auxiliary roller (114) that contacts the steel pipe is rotatably connected in the rectangular slot. A fastening screw is fixedly connected to the side wall of the support block (113) away from the rectangular slot. A circular hole corresponding to the fastening screw is opened on the side wall of the circular tube (106). One end of the fastening screw passes through to the outside of the circular hole, and a fastening nut for fixing it is threaded on the side wall of the fastening screw on the outside of the circular tube (106).

3. The welding apparatus for the production of electromechanical equipment according to claim 2, characterized in that: The limiting component includes a vertical screw (203) rotatably connected to the piston end of the hydraulic rod (202), a horizontal internal threaded part (204) fixedly connected to the inner wall of the housing (201), and a crossbar fixed to the inner wall of the internal threaded part (204) is provided on the side wall of the internal threaded part (204). The lower end of the vertical screw (203) extends to the lower side of the internal threaded part (204), and a circular groove is opened at the lower end of the vertical screw (203). A compression spring (205) is fixedly connected in the circular groove. A U-shaped bracket (206) with the groove opening facing downward is fixedly connected at the lower end of the compression spring (205). A limiting roller (207) that contacts the upper end of the steel pipe is rotatably connected in the groove of the U-shaped bracket (206).

4. The welding apparatus for the production of electromechanical equipment according to claim 3, characterized in that: The welding assembly includes a mounting base (303) fixedly connected to the lower end of the hydraulic cylinder (302), and the mounting base (303) is fixed to the piston end of the hydraulic cylinder (302) by fastening bolts. The lower end of the mounting base (303) is fixedly connected to a welding head (304), and the welding head (304) is correspondingly arranged on the upper side of the welding joint of the two steel pipes.

5. The welding apparatus for the production of electromechanical equipment according to claim 4, characterized in that: A rectangular cover (305) opposite to the welding head (304) is fixedly connected to the upper center of the support base plate (101). The rotating shaft (108) passes through the side wall of the rectangular cover (305). A horizontal mounting plate (306) is fixedly connected inside the rectangular cover (305). A cooling fan (307) is rotatably connected to the upper end of the mounting plate (306). The vertical axis of the cooling fan (307) is connected to the rotating shaft (108) through a linkage unit. The upper end of the rectangular cover (305) is an open structure, and a closed unit corresponding to the cooling fan (307) is provided at the upper end of the rectangular cover (305).

6. The welding apparatus for the production of electromechanical equipment according to claim 5, characterized in that: The mounting plate (306) is connected to the upper side of the rotating shaft (108). The linkage unit includes a first bevel gear (308) fixedly sleeved on the outside of the vertical shaft of the cooling fan (307). A second bevel gear (309) that meshes with the first bevel gear (308) is fixedly sleeved on the outer side wall of the rotating shaft (108).

7. The welding apparatus for the production of electromechanical equipment according to claim 6, characterized in that: The enclosed unit includes an electric push rod (310) fixedly connected to the front and rear side walls of a rectangular cover (305). The telescopic ends of the electric push rod (310) are fixedly connected to flexible plates (311). The upper end of the rectangular cover (305) is fixedly connected to two C-shaped strips (312) with opposite slots for limiting the flexible plates. The flexible plates (311) are slidably connected between the two C-shaped strips (312).

8. A welding method for a welding apparatus for manufacturing electromechanical equipment, applied to the welding apparatus for manufacturing electromechanical equipment as described in claim 7, characterized in that: Includes the following steps: S1. Before welding the steel pipe, the two sections of steel pipe to be welded are slidably inserted into the inner side of the circular cylinder (106). During the sliding process, the limiting roller (207) in the limiting component is first in a state of contact and rolling with the steel pipe. After the two sections of steel pipe are in contact, the hydraulic rod (202) is activated, so that the vertical screw (203) moves down and rotates with the cooperation of the internal thread part (204), thereby changing the angle of the limiting roller (207) so that it can fix the steel pipe. S2. After the two sections of steel pipe are fixed, the welding head (304) in the welding assembly and the drive motor (107) in the drive steering assembly are started at the same time. Under the transmission of the cylindrical gear (110) and the ring gear (109), the circular tube (106) rotates as a whole and drives the two sections of steel pipe to rotate synchronously. Then the welding head (304) can automatically weld the rotating steel pipe. S3. After the welding process is completed, the welding head (304) is closed, and the electric push rod (310) is started at the same time to make the two C-shaped strips (312) disengage from the rectangular cover (305). The rotating shaft (108) rotates while the cooling fan (307) is rotated through the transmission of the first bevel gear (308) and the second bevel gear (309), which can heat the welded steel pipe. After the heat dissipation is completed, the drive motor (107) is closed, and the hydraulic rod (202) is started in reverse to make the vertical screw (203) rotate to the initial position, disengage from the steel pipe, and then the steel pipe can be taken out smoothly to complete the welding work.

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