Building steel structure welding machine

By combining an incompletely circular rotating cylinder and a clamping assembly, the problem of difficulty in extracting long steel pipes after welding was solved, enabling convenient removal of the steel pipes and improving construction efficiency.

CN223960819UActive Publication Date: 2026-03-03CHINA CONSTR SIXTH BUREAU NORTH CHINA CONSTR CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-10
Publication Date
2026-03-03

AI Technical Summary

Technical Problem

The existing steel structure welding equipment for buildings has a cumbersome process for pulling out long steel pipes after welding, which affects construction efficiency.

Method used

The design employs a partially circular rotating cylinder, combining a clamping assembly and a driving assembly. The clamping assembly secures the steel pipe, while the driving assembly rotates the rotating cylinder, allowing the steel pipe to be directly removed from the rotating cylinder after welding.

Benefits of technology

This allows for easy removal of the welded steel pipe, improving construction efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of building welding, and discloses a building steel structure welding machine which comprises a base, supports are installed on the base, the number of the supports is two, the supports are symmetrically distributed on the base, rotating cylinders are rotationally arranged on the supports and are in an incomplete circular shape, and supporting frames are installed in the rotating cylinders. When the steel pipe welding device is used, two steel pipes are placed on the supporting frame, the connecting position of the two steel pipes is right opposite to the welding assembly, then the two steel pipes on the supporting frame are clamped and fixed through the clamping assembly, and then the driving assembly drives the rotating cylinder to rotate, so that the welding assembly can weld the connecting position of the two steel pipes; after welding is finished, the non-arc-shaped portion of the rotating cylinder is rotated to the upper portion, the clamping assembly loosens clamping of the steel pipes, at the moment, the two welded steel pipes can be directly taken out of the rotating cylinder, and convenience and rapidness are achieved.
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Description

Technical Field

[0001] This utility model relates to the field of building welding technology, specifically a building steel structure welding machine. Background Technology

[0002] Steel structure buildings are a new type of building system. Steel structures are structures made of steel materials and are one of the main types of building structures.

[0003] In the prior art, a welding device for steel structure construction (CN221849228U) uses a rotary motor. The motor is externally controlled to rotate a first gear, which, via a first annular rack, drives a rotating cylinder within two limit frames. This allows for adjustment of the welding position of two steel pipes during the welding process. A clamping motor drives three sliding rods to slide within sliding grooves, bringing three clamping plates closer together to clamp and fix the steel pipes. A threaded adjusting cylinder, adjusting bolts, and a spirit level facilitate adjustment of the device's levelness. However, in the prior art, the rotating cylinder is annular. Therefore, after welding, only the two welded pipes can be pulled out of the rotating cylinder. This process is cumbersome when the pipes are long. To address these issues, a steel structure welding machine has been proposed by those skilled in the art. Utility Model Content

[0004] The purpose of this invention is to provide a steel structure welding machine for buildings to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A steel structure welding machine includes a base, on which two supports are mounted symmetrically. A rotating cylinder, which is not perfectly circular, is rotatably mounted on each support. A support frame is installed inside the rotating cylinder. The machine also includes:

[0007] A clamping assembly is provided on both sides inside the rotating cylinder for clamping and fixing the steel pipe placed on the support frame;

[0008] A drive assembly, disposed between the rotating cylinder and the base, is used to drive the rotating cylinder to rotate;

[0009] A welding assembly, located in the middle of the base, is used to weld the joint of the two steel pipes.

[0010] As a further embodiment of this utility model: the clamping assembly includes a threaded rod rotatably disposed inside the rotating cylinder and located on both sides of the support frame. A movable frame is threadedly connected to the threaded rod. The movable frame is slidably connected to a guide rod installed between the support frame and the inner wall of the rotating cylinder. Two rotating shafts are rotatably disposed inside the rotating cylinder. A positioning plate is rotatably disposed on the rotating shaft. A groove is opened at the end of the positioning plate near the movable frame. A sliding column that is slidably connected to the groove is installed on the movable frame. A power component is connected to the threaded rod.

[0011] As a further embodiment of this utility model: the power component includes a bidirectional motor installed in the support frame, with drive shafts installed at the two output ends of the bidirectional motor, and transmission wheels installed on both the drive shafts and the threaded rod, the two transmission wheels being connected by a synchronous belt drive.

[0012] As a further embodiment of this utility model: the drive assembly includes an incomplete external gear mounted on the outer wall of the rotating cylinder, two power boxes that fit against the outer wall of the rotating cylinder are mounted on the base, two transmission shafts are rotatably arranged inside the power boxes, transmission gears that mesh with the incomplete external gears are mounted on the transmission shafts, and a drive motor connected to the transmission shafts is mounted on the outer wall of the power boxes.

[0013] As a further embodiment of this utility model: the welding assembly includes a fixed frame installed in the middle of the base, a hydraulic rod installed on the fixed frame, and a welding gun connected to the hydraulic rod.

[0014] As a further improvement of this utility model, a slag receiving box is provided in the middle of the base.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows: When using this utility model, two steel pipes are placed on the support frame, and the connection position of the two steel pipes is aligned with the welding assembly. Then, the two steel pipes on the support frame are clamped and fixed by the clamping assembly. Then, the rotating cylinder is driven by the driving assembly to rotate, so that the welding assembly can weld the connection position of the two steel pipes. After the welding is completed, the non-arc part of the rotating cylinder is rotated to the top, and the clamping assembly releases its grip on the steel pipes. At this time, the two welded steel pipes can be directly removed from the rotating cylinder, which is convenient and quick. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of a welding machine for building steel structures.

[0017] Figure 2 This is a schematic cross-sectional view of the rotating cylinder in a steel structure welding machine for buildings.

[0018] Figure 3 This is a schematic diagram of the support frame in a steel structure welding machine for buildings.

[0019] In the diagram: 1. Base; 2. Fixing frame; 3. Hydraulic rod; 4. Welding gun; 5. Slag receiving box; 6. Bracket; 7. Rotating cylinder; 8. Support frame; 9. Threaded rod; 10. Guide rod; 11. Moving frame; 12. Rotating shaft; 13. Positioning plate; 14. Slide groove; 15. Sliding column; 16. Dual-line motor; 17. Drive shaft; 18. Transmission wheel; 19. Synchronous belt; 20. Incomplete external gear; 21. Power box; 22. Transmission shaft; 23. Transmission gear; 24. Drive motor. Detailed Implementation

[0020] The technical solution of this patent will be further described in detail below with reference to specific embodiments.

[0021] Please see Figures 1-3 A steel structure welding machine for buildings includes a base 1, on which two supports 6 are mounted symmetrically. A rotating cylinder 7, which is not perfectly circular, is rotatably mounted on each support 6. A support frame 8 is installed inside the rotating cylinder 7. The machine also includes:

[0022] The clamping assembly is disposed on both sides inside the rotating cylinder 7 and is used to clamp and fix the steel pipe placed on the support frame 8.

[0023] A drive assembly is disposed between the rotating cylinder 7 and the base 1 for driving the rotating cylinder 7 to rotate;

[0024] A welding assembly is located in the middle of the base 1 and is used to weld the connection between the two steel pipes.

[0025] In use, place two steel pipes on the support frame 8, ensuring that the connection point of the two steel pipes is directly opposite the welding assembly. Then, clamp the two steel pipes on the support frame 8 using the clamping assembly. Next, drive the rotating cylinder 7 to rotate using the drive assembly, allowing the welding assembly to weld the connection point of the two steel pipes. After welding, rotate the non-arc part of the rotating cylinder 7 to the top, and the clamping assembly releases its grip on the steel pipes. At this point, the two welded steel pipes can be directly removed from the rotating cylinder 7, which is convenient and quick.

[0026] In one embodiment, the clamping assembly includes a threaded rod 9 rotatably disposed inside the rotating cylinder 7 and located on both sides of the support frame 8. A movable frame 11 is threadedly connected to the threaded rod 9. The movable frame 11 is slidably connected to a guide rod 10 installed between the support frame 8 and the inner wall of the rotating cylinder 7. Two rotating shafts 12 are rotatably disposed inside the rotating cylinder 7. A positioning plate 13 is rotatably disposed on the rotating shaft 12. A sliding groove 14 is opened at one end of the positioning plate 13 near the movable frame 11. A sliding column 15 that is slidably connected to the sliding groove 14 is installed on the movable frame 11. A power component is connected to the threaded rod 9.

[0027] The power component includes a bidirectional motor installed in the support frame 8. The two output ends of the bidirectional motor are equipped with drive shafts 17. Both drive shafts 17 and threaded rods 9 are equipped with transmission wheels 18. The two transmission wheels 18 are connected by a synchronous belt 19. By starting the bidirectional motor, the two drive shafts 17 are driven to rotate, and the transmission wheels 18 and the synchronous belt 19 make the two threaded rods 9 rotate synchronously.

[0028] During use, the support frame 8 has a V-shaped groove, which makes it easy to place the steel pipe in the center on the support frame 8. When it is necessary to clamp the steel pipe, the power component is driven by an external controller. The power component drives the threaded rod 9 to rotate. The rotation of the threaded rod 9 drives the moving frame 11 to move along the guide rod 10 towards the inner wall of the rotating cylinder 7, so that the positioning plate 13 rotates around the rotating shaft 12 towards the center of the rotating cylinder 7. This allows the two positioning plates 13 to press on both sides of the top of the steel pipe, which, together with the support frame 8, can clamp and fix the steel pipe.

[0029] In one embodiment, the drive assembly includes an incomplete external gear 20 mounted on the outer wall of the rotating cylinder 7. Two power boxes 21 that fit against the outer wall of the rotating cylinder 7 are mounted on the base 1. Two transmission shafts 22 are rotatably arranged inside the power boxes 21. Transmission gears 23 that mesh with the incomplete external gear 20 are mounted on the transmission shafts 22. A drive motor 24 connected to the transmission shafts 22 is mounted on the outer wall of the power boxes 21.

[0030] It should be noted that as the transmission gear 23 drives the incomplete external gear 20 to rotate, since the rotating cylinder 7 is not circular, the incomplete external gear 20 is not a complete circular gear either. Therefore, when one of the transmission gears 23 is engaged with the incomplete external gear 20 and the other transmission gear 23 is not engaged with the incomplete external gear 20, the rotating cylinder 7 can continue to rotate. When the transmission gear 23 engaged with the incomplete external gear 20 is about to disengage from it, the transmission gear 23 that was not originally engaged with the incomplete external gear 20 begins to engage with it, thereby keeping the rotating cylinder 7 able to rotate continuously on the support 6.

[0031] In addition, in this embodiment, the two drive shafts 22 are driven by separate drive motors 24. The two drive motors 24 are synchronized by a servo controller, or the synchronous rotation of the two drive shafts 22 can be achieved by a corresponding mechanical transmission mechanism.

[0032] Under the action of the drive motor 24, the transmission shaft 22 drives the transmission gear 23 to rotate, and through the meshing and partially external gear 20, drives the rotating cylinder 7 to rotate on the bracket 6, thereby enabling the welding assembly to effectively weld the joint of the steel pipe.

[0033] In one embodiment, the welding assembly includes a fixing frame 2 installed in the middle of the base 1, a hydraulic rod 3 mounted on the fixing frame 2, and a welding gun 4 connected to the hydraulic rod 3.

[0034] The distance between the welding gun 4 and the steel pipe can be adjusted by the hydraulic rod 3, which makes it easier for the welding gun 4 to weld the steel pipe.

[0035] In one embodiment, a slag collection box 5 is provided in the middle of the base 1, and the welding slag generated during the welding process will fall into the slag collection box 5 for easy collection.

[0036] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0037] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A steel structure welding machine for buildings, comprising a base, characterized in that, The base is equipped with two brackets symmetrically distributed on it. A rotating cylinder, which is not perfectly circular, is rotatably mounted on each bracket. A support frame is installed inside the rotating cylinder. The system also includes: A clamping assembly is provided on both sides inside the rotating cylinder for clamping and fixing the steel pipe placed on the support frame; A drive assembly, disposed between the rotating cylinder and the base, is used to drive the rotating cylinder to rotate; A welding assembly, located in the middle of the base, is used to weld the joint of the two steel pipes.

2. The steel structure welding machine for buildings according to claim 1, characterized in that, The clamping assembly includes a threaded rod rotatably disposed inside the rotating cylinder and located on both sides of the support frame. A movable frame is threadedly connected to the threaded rod. The movable frame is slidably connected to a guide rod installed between the support frame and the inner wall of the rotating cylinder. Two rotating shafts are rotatably disposed inside the rotating cylinder. A positioning plate is rotatably disposed on the rotating shaft. A sliding groove is opened at the end of the positioning plate near the movable frame. A sliding column that is slidably connected to the sliding groove is installed on the movable frame. A power component is connected to the threaded rod.

3. The steel structure welding machine for buildings according to claim 2, characterized in that, The power component includes a bidirectional motor installed in the support frame. The two output ends of the bidirectional motor are equipped with drive shafts. Both the drive shafts and the threaded rod are equipped with transmission wheels, and the two transmission wheels are connected by a synchronous belt.

4. The steel structure welding machine according to claim 1, characterized in that, The drive assembly includes an incomplete external gear mounted on the outer wall of the rotating cylinder. Two power boxes that fit against the outer wall of the rotating cylinder are mounted on the base. Two transmission shafts are rotatably arranged inside the power boxes. Transmission gears that mesh with the incomplete external gears are mounted on the transmission shafts. A drive motor connected to the transmission shafts is mounted on the outer wall of the power boxes.

5. A steel structure welding machine for buildings according to claim 1, characterized in that, The welding assembly includes a mounting frame installed in the middle of the base, on which a hydraulic rod is mounted, and the hydraulic rod is connected to a welding gun.

6. A steel structure welding machine for buildings according to claim 1, characterized in that, A slag collection box is provided in the middle of the base.

Citation Information

Patent Citations

  • Welding device for steel structure building construction

    CN221849228U