External welding equipment for large steel pipe

By designing an external welding device for large steel pipes, a stable clamping and precise position adjustment of the steel pipes are achieved through mechanical structure and motor drive, solving the problems of low efficiency and unstable quality in traditional manual welding, and improving the efficiency and quality of large steel pipe welding.

CN224273953UActive Publication Date: 2026-05-26张家港沙钢金洲管道有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
张家港沙钢金洲管道有限公司
Filing Date
2025-07-04
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

Traditional manual welding of large steel pipes is labor-intensive and inefficient. The welding quality depends on the welder's skills and is difficult to guarantee stability and consistency. It is particularly limited when welding large-diameter, thick-walled steel pipes and cannot meet the needs of large-scale production.

Method used

An external welding device for large steel pipes was designed, including components such as a support platform, drive motor, sliding frame, telescopic pump, and welding machine. Through mechanical structure and motor drive, the device achieves stable clamping, rotation, and position adjustment of the steel pipe, ensuring the stability and consistency of welding quality.

Benefits of technology

It achieves stable support and precise position adjustment during the welding process of large steel pipes, improves welding efficiency and quality, adapts to the needs of steel pipes of different diameters and specifications, and reduces reliance on manual labor.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224273953U_ABST
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Abstract

The utility model belongs to the technical field of external welding, and particularly relates to external welding equipment for a large steel pipe. A bearing frame is fixedly connected to one side of the top of the bearing table; a driving motor is mounted at the top of the bearing frame; the output end of the driving motor is connected with a first threaded column; the first threaded column is arranged in the bearing frame in a rotating mode. A sliding frame is slidably connected to the first threaded column in the bearing frame. A telescopic pump is mounted at the top of the sliding frame; the output end of the telescopic pump is fixedly connected with an equipment frame; an auxiliary rotating wheel is rotationally arranged at the bottom of the equipment frame; by means of the structure, in order to effectively meet the welding requirement of the large steel pipe, the mechanical structure of the device is generally designed to be large and firm, the device can bear the weight of the steel pipe and various kinds of force generated in the welding process, and good adjustability is achieved so that the device can adapt to welding of the large steel pipes with different diameters and different specifications.
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