Stiff column construction welding device

By designing a welding device for the rigid columns supporting the alignment mechanism and the welding mechanism, the problems of inaccurate butt and inconvenient welding of the rigid columns are solved, and accurate butt and efficient welding of the rigid columns are achieved. It is suitable for welding tasks of steel columns of different specifications and nails with welding.

CN119839514APending Publication Date: 2025-04-18THE THIRD CONSTR OF CHINA CONSTR EIGHTH ENG BUREAU
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Patent Information

Application Number
CN202510177983.4
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-02-18
Publication Date
2025-04-18

AI Technical Summary

Technical Problem

In the prior art, the docking of the strong column is inconvenient, the docking is inaccurate, the high-altitude welding is inconvenient and flexible enough. Especially due to the large volume and weight of the steel column, the docking of the crane is more troublesome, and the installation of nails on the outside of some steel columns affects the welding.

Method used

A rigid column construction welding device including a supporting alignment mechanism and a welding mechanism is designed. The support alignment mechanism realizes precise docking of the stiff columns through the docking positioning device, the bottom docking frame and the upper docking frame, while the welding mechanism realizes automatic welding at high altitude through the crawling device and multi-stage rotary welding arm.

Benefits of technology

Accurate butt and efficient welding of strong columns are achieved, the problems of inaccurate butt and inconvenient welding are solved, construction efficiency and flexibility are improved, and it is suitable for welding tasks with different specifications of steel columns and nails.

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Abstract

The invention belongs to the technical field of building construction, and particularly relates to a stiff column construction welding device. Comprising a supporting alignment mechanism and a welding mechanism, the supporting alignment mechanism comprises a butt-joint positioning device, a bottom butt-joint frame and an upper butt-joint frame, the bottom butt-joint frame is arranged on a floor slab, the butt-joint positioning device is arranged on the bottom butt-joint frame, the upper butt-joint frame is arranged above the butt-joint positioning device, a lower stiff column is fixedly arranged on the floor slab, and the lower stiff column is arranged above the butt-joint positioning device. The upper stiff column is in butt joint with the lower stiff column through hoisting of a crane, the bottom butt joint frame is arranged outside the upper stiff column in a sleeving mode, the lower stiff column is located in the center of the bottom butt joint frame, and after the upper stiff column is hoisted, the position of the upper stiff column is adjusted through the upper butt joint frame, the butt joint positioning device and the butt joint positioning device. The problems that in the prior art, butt joint of an upper stiff column and a lower stiff column is inconvenient and inaccurate are solved, and the problems that high-altitude welding is inconvenient and welding is not flexible enough are solved.
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Description

Technical Field

[0001] The invention belongs to the technical field of building construction, and specifically refers to a rigid column construction welding device. Background Art

[0002] A rigid column is a component with concrete wrapped around the steel section, and the cross-sections include cross, I-shaped, T-shaped, L-shaped, box-shaped, etc. The steel columns processed in the factory are mostly one layer per section, or two layers per section, and the steel columns need to be welded. However, the cross-section of the rigid steel column is large, and the welding workload is large. In addition, the high-altitude construction further increases the difficulty for the workers. When welding two steel columns, they are butt-jointed by hoisting. Due to the large volume and weight of the steel columns, it is more troublesome to butt-join the two steel columns by crane, and the alignment is not accurate. In addition, some steel columns are equipped with bolts on the outside, which affects and occupies the welding area, further increasing the difficulty of welding. Summary of the invention

[0003] In view of the above situation, in order to overcome the defects of the prior art, the present invention provides a rigid column construction welding device, which solves the problems of inconvenient and inaccurate docking of the upper and lower rigid columns in the prior art, and solves the problems of inconvenient high-altitude welding and insufficient flexibility of welding.

[0004] The technical scheme adopted by the present invention is as follows: The present invention provides a rigid column construction welding device, including a support alignment mechanism and a welding mechanism, the support alignment mechanism including a docking positioning device, a bottom docking frame and an upper docking frame, the bottom docking frame is arranged on the floor slab, the docking positioning device is arranged on the bottom docking frame, the upper docking frame is arranged above the docking positioning device, the lower rigid column is fixedly arranged on the floor slab, and the upper rigid column is docked with the lower rigid column by hoisting with a crane, and then the two are welded, the bottom docking frame is sleeved on the outside of the upper rigid column, and the lower rigid column is located at the center of the bottom docking frame, the docking positioning device and the upper docking frame are located above the lower rigid column, when the upper rigid column is hoisted, through the upper docking frame and the docking positioning device, and the position of the upper rigid column is adjusted through the docking positioning device, so that the upper rigid column and the lower rigid column are aligned.

[0005] Furthermore, the docking positioning device includes an alignment fixing plate, a transverse alignment component and a longitudinal alignment component. The alignment fixing plate is located between the upper docking frame and the bottom docking frame and is fixedly connected to the two. A through hole is provided at the center position of the alignment fixing plate for the rigid column to pass through. The transverse alignment component and the longitudinal alignment component are respectively arranged on the upper and lower surfaces of the alignment fixing plate. The transverse alignment component includes two transverse push plates symmetrically arranged on both sides of the through hole. Sliding rods are provided on both sides of the through hole. The sliding rods are slidably connected to the pushing frame. The two transverse push plates are connected to the pushing frame. Linkage gears are provided on the upper and lower sides of the alignment fixing plate. Linkage gear rods are provided on the upper and lower sides of the pushing frame, and the linkage gear rods of the pushing frames on both sides are respectively meshed and connected to the upper and lower sides of the linkage gear.

[0006] When one push frame slides, the linkage gear rod connected to it pushes the linkage gear to rotate, and the linkage gear drives another linkage gear rod to move synchronously, and the two slide in opposite directions, so that the two horizontal push plates can move synchronously and oppositely, and then push the upper stiffening column to make it centered and aligned with the lower stiffening column.

[0007] Furthermore, the function of the longitudinal alignment component is the same as that of the transverse alignment component, except that the directions of their actions on the upper rigid column are different. Therefore, the structures of the longitudinal alignment component and the transverse alignment component are the same. The longitudinal alignment component includes two longitudinal push plates, and the sliding directions of the two longitudinal push plates and the sliding directions of the two transverse push plates are perpendicular to each other, thereby pushing the upper rigid column from four directions to center it and align it with the lower rigid column.

[0008] Furthermore, an upper alignment screw is rotatably provided on the top surface of the alignment fixing plate, the upper alignment screw is threadedly connected to a pushing frame of the lateral alignment assembly, and the upper alignment screw is driven by a motor; A lower alignment screw is rotatably provided on the bottom surface of the alignment fixing plate. The lower alignment screw is threadedly connected to a pushing frame of the longitudinal alignment component. The lower alignment screw is driven by a motor.

[0009] The motor drives the alignment screw to rotate, thereby driving the push frame to move, and then through the action of the linkage gear and the linkage gear rod, the two push plates are driven to move simultaneously.

[0010] Furthermore, the welding mechanism includes a crawling device, a welding arm and a welding gun, the welding arm is arranged on the crawling device, and the welding gun is arranged on the welding arm. The welding work for the rigid column is high-altitude welding, and bolts are arranged on the outside of some rigid columns, which makes the welding work inconvenient. Therefore, the crawling device includes a folding body one, a folding body two, a crawling body one and a crawling body two. The folding body one and the folding body two are rotatably connected, the folding body one and the crawling body one are rotatably connected, and the folding body two and the crawling body two are rotatably connected. An electric suction cup is provided at the bottom of the crawling body one, and an electric suction cup is provided at the bottom of the crawling body two. A folding cylinder is provided between the folding body one and the folding body two, and both ends of the folding cylinder are respectively hinged to the folding body one and the folding body two, and the crawling body one is driven to rotate by a motor, and the crawling body two is driven to rotate by a motor.

[0011] When the crawling body 1 is adsorbed on the surface of the steel column through the suction cup, the folding body 1 and the folding body 2 are pulled to fold through the cylinder, and the crawling body 2 is brought close to the crawling body 1, and then the crawling body 2 is controlled to be adsorbed and fixed, and the folding body 1 and the crawling body 1 are pushed forward by the cylinder, thereby realizing the crawling movement.

[0012] Through the setting of the crawling device, the automatic effect can be achieved, and it is not limited by the external contour of the steel column. It can cope with the welding of steel columns of different specifications and can move freely around the periphery of the steel column.

[0013] Furthermore, a welding platform is provided on the crawling device, the welding arm is provided on the welding platform, and the welding arm is a multi-stage rotating arm.

[0014] Furthermore, the upper docking frame is in an outwardly expanding trumpet shape, which is convenient for crane hoisting.

[0015] The present invention provides a method for welding a stiffening column, comprising the following steps: S1. Set up the docking frame so that the lower stiffening column is located at the center of the bottom docking frame; S2. Use a crane to hoist the upper rigid column, pass it through the openings of the upper docking frame and the alignment fixing plate, and support the upper rigid column through the lower rigid column to achieve preliminary docking; S3. Adjust the position of the upper stiffening column through the docking positioning device to achieve precise docking and keep the upper stiffening column fixed; S4, installing the welding mechanism and completing the welding work by controlling the installation of the welding mechanism; S5. Disassemble the docking frame.

[0016] The beneficial effects achieved by the present invention using the above structure are as follows: This scheme provides a welding device for the construction of rigid columns. By setting a support alignment mechanism, according to the characteristics of the rectangular contour of the rigid columns, the rigid columns are pushed from four sides for centering and positioning to achieve precise docking, thereby solving the problem of inaccurate and inconvenient docking by manual or crane operation in the prior art. In addition, the welding device is provided so that it can be attached to the surface of the steel column and automatically crawl, thereby facilitating high-altitude welding without being affected by the specifications of the steel column and the bolts. By setting a multi-stage adjustable welding arm, a flexible welding effect can be achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the overall structure of this scheme; Figure 2 A three-dimensional diagram of the support alignment mechanism; Figure 3 is a stereoscopic diagram of a docking positioning device; Figure 4 It is a structural schematic diagram of the lateral alignment component; Figure 5 It is a structural schematic diagram of the longitudinal alignment component; Figure 6 It is a structural schematic diagram of the welding mechanism; Figure 7 It is a side view of the welding mechanism; Figure 8 This is the spatial layout diagram of the welding arm.

[0018] Among them, 1. Support alignment mechanism; 2. Welding mechanism; 3. Docking positioning device; 4. Bottom docking frame; 5. Upper docking frame; 6. Lower rigid column; 7. Upper rigid column; 8. Alignment fixing plate; 9. Horizontal alignment component; 10. Longitudinal alignment component; 11. Through port; 12. Horizontal push plate; 13. Slide rod; 14. Push frame; 15. Linkage gear; 16. Linkage gear rod; 17. Longitudinal push plate; 18. Upper alignment screw; 19. Lower alignment screw; 20. Crawling device; 21. Welding arm; 22. Welding gun; 23. Folding body one; 24. Folding body two; 25. Crawling body one; 26. Crawling body two; 27. Electric suction cup; 28. Folding cylinder; 29. ​​Welding table; 30. Base; 31. Primary arm; 32. Secondary arm; 33. Tertiary arm; 34. Quaternary arm The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0020] In the description of the present invention, it should be understood that terms such as “upper”, “lower”, “front”, “back”, “left”, “right”, “top”, “bottom”, “inside” and “outside” indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as limiting the present invention.

[0021] The present invention provides a welding device for rigid column construction, such as Figure 1 , including a supporting alignment mechanism 1 and a welding mechanism 2, such as Figure 2 The support alignment mechanism 1 includes a docking positioning device 3, a bottom docking frame 4 and an upper docking frame 5. The bottom docking frame 4 is arranged on the floor slab, the docking positioning device 3 is arranged on the bottom docking frame 4, and the upper docking frame 5 is arranged above the docking positioning device 3. A lower rigid column 6 is fixedly arranged on the floor slab, and an upper rigid column 7 is docked with the lower rigid column 6 by hoisting with a crane, and then the two are welded. The bottom docking frame 4 is sleeved on the outside of the upper rigid column 7, and the lower rigid column 6 is located at the center of the bottom docking frame 4. The docking positioning device 3 and the upper docking frame 5 are located above the lower rigid column 6. When the upper rigid column 7 is hoisted, the upper docking frame 5 and the docking positioning device 3 are used, and the position of the upper rigid column 7 is adjusted by the docking positioning device 3, so that the upper rigid column 7 and the lower rigid column 6 are aligned.

[0022] Among them, Figure 3-5 The docking positioning device 3 includes an alignment fixing plate 8, a transverse alignment component 9 and a longitudinal alignment component 10. The alignment fixing plate 8 is located between the upper docking frame 5 and the bottom docking frame 4, and is fixedly connected to the two. A through hole 11 is provided at the center position of the alignment fixing plate 8 for the rigid column to pass through. The transverse alignment component 9 and the longitudinal alignment component 10 are respectively arranged on the upper and lower surfaces of the alignment fixing plate 8. The transverse alignment component 9 includes two transverse push plates 12 symmetrically arranged on both sides of the through hole 11. Slide rods 13 are provided on both sides of the through hole 11. A push frame 14 is slidably connected to the slide rod 13. Both transverse push plates 12 are connected to the push frame 14. Linkage gears 15 are provided on the upper and lower sides of the alignment fixing plate 8. Linkage gear rods 16 are provided on the upper and lower sides of the push frame 14, and the linkage gear rods 16 of the push frames 14 on both sides are respectively meshed and connected to the upper and lower sides of the linkage gear 15.

[0023] When one pushing frame 14 slides, the linkage gear rod 16 connected thereto pushes the linkage gear 15 to rotate, and the linkage gear 15 drives the other linkage gear rod 16 to move synchronously, and the sliding directions of the two are opposite, so that the two horizontal push plates 12 can move synchronously and oppositely, and then the upper stiffening column 7 can be pushed to be centered and aligned with the lower stiffening column 6.

[0024] The function of the longitudinal alignment component 10 is the same as that of the transverse alignment component 9, except that the directions of their actions on the upper rigid column 7 are different. Therefore, the longitudinal alignment component 10 and the transverse alignment component 9 have the same structure. The longitudinal alignment component 10 includes two longitudinal push plates 17, and the sliding directions of the two longitudinal push plates 17 and the sliding directions of the two transverse push plates 12 are perpendicular to each other, thereby pushing the upper rigid column 7 from four directions to center it and align it with the lower rigid column 6.

[0025] An upper alignment screw 18 is rotatably provided on the top surface of the alignment fixing plate 8, and the upper alignment screw 18 is threadedly connected to a pushing frame 14 of the lateral alignment assembly 9, and the upper alignment screw 18 is driven by a motor; A lower alignment screw 19 is rotatably provided on the bottom surface of the alignment fixing plate 8 . The lower alignment screw 19 is threadedly connected to a pushing frame 14 of the longitudinal alignment assembly 10 . The lower alignment screw 19 is driven by a motor.

[0026] The motor drives the alignment screw to rotate, thereby driving the push frame 14 to move, and then through the action of the linkage gear 15 and the linkage gear rod 16, the two push plates are driven to move simultaneously.

[0027] like Figure 6-7 The welding mechanism 2 includes a crawling device 20, a welding arm 21 and a welding gun 22. The welding arm 21 is arranged on the crawling device 20, and the welding gun 22 is arranged on the welding arm 21. The welding work for the rigid column is high-altitude welding, and the studs are arranged outside some rigid columns, which makes the welding work inconvenient. Therefore, the crawling device 20 is arranged to include a folding body 1 23, a folding body 24, a crawling body 1 25 and a crawling body 26. The folding body 1 23 and the folding body 24 are rotatably connected. The folding body The folding body 23 and the crawling body 25 are rotationally connected, the folding body 24 and the crawling body 26 are rotationally connected, an electric suction cup 27 is provided at the bottom of the crawling body 25, and an electric suction cup 27 is provided at the bottom of the crawling body 26. A folding cylinder 28 is provided between the folding body 1 23 and the folding body 24, and the two ends of the folding cylinder 28 are respectively hinged to the folding body 1 23 and the folding body 2 24. The crawling body 1 25 is driven to rotate by a motor, and the crawling body 2 26 is driven to rotate by a motor.

[0028] When the crawling body 25 is adsorbed on the surface of the steel column through the suction cup, the folding body 23 and the folding body 24 are pulled to fold through the cylinder, and the crawling body 26 is made close to the crawling body 25, and then the crawling body 26 is controlled to be adsorbed and fixed, and the folding body 23 and the crawling body 25 are pushed forward by the cylinder, thereby realizing the crawling movement.

[0029] By setting up the crawling device 20, an automatic effect can be achieved, and it is not limited by the outer contour of the steel column. It can cope with the welding of steel columns of different specifications and can move freely around the periphery of the steel column.

[0030] The crawling device 20 is provided with a welding platform 29, and the welding arm 21 is provided on the welding platform 29. The welding arm 21 is a multi-stage rotating arm. Figure 8 The welding arm 21 includes a base 30, a primary arm 31, a secondary arm 32, a tertiary arm 33, and a quadruple arm 34. In the x, y, and z coordinate space, the base 30 is rotatably disposed on the welding table 29, and the rotation axis of the base 30 is parallel to the z-axis. The primary arm 31 is rotatably disposed on the base 30, and the rotation axis of the primary arm 31 is parallel to the x-axis. The secondary arm 32 is rotatably disposed on the primary arm 31, and the rotation axis of the secondary arm 32 is parallel to the y-axis. The tertiary arm 33 is rotatably disposed on the secondary arm 32, and the rotation axis of the tertiary arm 33 is parallel to the x-axis. The quadruple arm 34 is rotatably disposed on the tertiary arm 33, and the rotation axis of the quadruple arm 34 is parallel to the y-axis. The quadruple arm 34 is eccentrically inclined, and the welding gun 22 is disposed on the quadruple arm 34.

[0031] By providing a multi-stage welding arm 21 and multi-directional adjustment in a three-dimensional space, the flexibility of the welding arm 21 is improved, and the welding gun 22 can be moved flexibly in all directions without dead angles, thereby improving the welding efficiency.

[0032] In the embodiment, the welding mechanism 2 is provided with a remote control system, which can realize remote control movement and welding.

[0033] In the embodiment, the welding mechanism 2 is provided with a camera and is connected to an image feedback system.

[0034] When in use, first set up the support alignment mechanism 1 so that the lower rigid column 6 is located at the center of the bottom docking frame 4, and the upper rigid column 7 is hoisted by a crane to enter the upper docking frame 5 and pass through the through hole 11. The upper rigid column 7 is supported by the lower rigid column 6 to control the lateral alignment component 9 and the longitudinal alignment component 10. The motor drives the upper alignment screw 18 to rotate, thereby pushing the push frame 14 to slide. When one push frame 14 slides, the linkage gear rod 16 connected thereto pushes the linkage gear 15 to rotate, and the linkage gear 15 drives the other linkage gear rod 16 to move synchronously, and the two sliding directions are opposite, so that the two lateral push plates 12 can move synchronously and oppositely. Similarly, the longitudinal alignment component 10 is controlled so that the two connected push frames 14 can move synchronously and oppositely. The longitudinal push plates 17 push synchronously and oppositely, and the upper rigid column 7 is pushed to the center position from all sides and aligned with the lower rigid column 6. After keeping the lower rigid column 6 fixed, the welding mechanism 2 is placed for welding. First, it is adsorbed on the steel column through the suction cup. When the crawling body 25 is adsorbed on the surface of the steel column through the suction cup, the folding body 1 23 and the folding body 2 24 are pulled to fold through the cylinder, and the crawling body 2 26 is made close to the crawling body 1 25, and then the crawling body 26 is controlled to be adsorbed and fixed, and the folding body 1 23 and the crawling body 1 25 are pushed forward by the cylinder, thereby realizing the crawling movement, and the multi-directional movement adjustment is realized by controlling the welding arm 21, and welding is carried out by the welding gun 22, and continuous welding operation is realized while the crawling device 20 moves.

[0035] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0036] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

[0037] The present invention and its embodiments are described above, and such description is not restrictive. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if ordinary technicians in the field are inspired by it, without departing from the purpose of the invention, they can design a structure and embodiment similar to the technical solution without creativity, which should belong to the protection scope of the present invention.

Claims

1. A welding device for rigid column construction, characterized in that: The invention comprises a supporting alignment mechanism (1) and a welding mechanism (2), wherein the supporting alignment mechanism (1) comprises a docking positioning device (3), a bottom docking frame (4) and an upper docking frame (5), wherein the bottom docking frame (4) is arranged on a floor slab, the docking positioning device (3) is arranged on the bottom docking frame (4), and the upper docking frame (5) is arranged above the docking positioning device (3); a lower rigid column (6) is fixedly arranged on the floor slab, the bottom docking frame (4) is sleeved on the outside of the upper rigid column (7), and the lower rigid column (6) is located at the center of the bottom docking frame (4), and the docking positioning device (3) and the upper docking frame (5) are located above the lower rigid column (6).

2. A rigid column construction welding device according to claim 1, characterized in that: The docking positioning device (3) comprises an alignment fixing plate (8), a transverse alignment component (9) and a longitudinal alignment component (10); the alignment fixing plate (8) is located between the upper docking frame (5) and the bottom docking frame (4) and is fixedly connected to the two; a through hole (11) is provided at the center of the alignment fixing plate (8) for the rigid column to pass through; the transverse alignment component (9) and the longitudinal alignment component (10) are respectively arranged on the upper and lower surfaces of the alignment fixing plate (8); the transverse alignment component (9) comprises two alignment components. A lateral push plate (12) is provided on both sides of the through opening (11), a slide bar (13) is provided on both sides of the through opening (11), a push frame (14) is slidably connected to the slide bar (13), and both lateral push plates (12) are connected to the push frame (14), and linkage gears (15) are provided on the upper and lower sides of the alignment fixing plate (8), and linkage gear rods (16) are provided on the upper and lower sides of the push frame (14), and the linkage gear rods (16) of the push frames (14) on both sides are respectively meshed and connected to the upper and lower sides of the linkage gear (15).

3. A rigid column construction welding device according to claim 2, characterized in that: The longitudinal alignment component (10) and the transverse alignment component (9) have the same structure. The longitudinal alignment component (10) comprises two longitudinal push plates (17), and the sliding directions of the two longitudinal push plates (17) and the sliding directions of the two transverse push plates (12) are perpendicular to each other.

4. A rigid column construction welding device according to claim 3, characterized in that: An upper alignment screw (18) is rotatably provided on the top surface of the alignment fixing plate (8), and the upper alignment screw (18) is threadedly connected to a push frame (14) of the transverse alignment component (9), and the upper alignment screw (18) is driven by a motor; a lower alignment screw (19) is rotatably provided on the bottom surface of the alignment fixing plate (8), and the lower alignment screw (19) is threadedly connected to a push frame (14) of the longitudinal alignment component (10), and the lower alignment screw (19) is driven by a motor.

5. A rigid column construction welding device according to claim 1, characterized in that: The welding mechanism (2) comprises a crawling device (20), a welding arm (21) and a welding gun (22); the welding arm (21) is arranged on the crawling device (20); the welding gun (22) is arranged on the welding arm (21); the crawling device (20) comprises a folding body 1 (23), a folding body 2 (24), a crawling body 1 (25) and a crawling body 2 (26); the folding body 1 (23) and the folding body 2 (24) are rotatably connected; the folding body 1 (23) and the crawling body 1 (25) are rotatably connected; The folding body 2 (24) and the crawling body 2 (26) are rotatably connected, the crawling body 1 (25) is provided with an electric suction cup (27) at the bottom, and the crawling body 2 (26) is provided with an electric suction cup (27) at the bottom. A folding cylinder (28) is provided between the folding body 1 (23) and the folding body 2 (24), and the two ends of the folding cylinder (28) are respectively hinged to the folding body 1 (23) and the folding body 2 (24). The crawling body 1 (25) is driven to rotate by a motor, and the crawling body 2 (26) is driven to rotate by a motor.

6. A rigid column construction welding device according to claim 5, characterized in that: A welding platform (29) is provided on the crawling device (20), and the welding arm (21) is provided on the welding platform (29); the welding arm (21) is a multi-stage rotating arm.

7. A rigid column construction welding device according to claim 1, characterized in that: The upper docking frame (5) is in the shape of an outwardly expanding trumpet.