A welding tool applied to the butt welding workstation of cylinder longitudinal circular seam

Abstract

The invention relates to the technical field of welding and provides a welding tool applied to a barrel longitudinal circular seam pairing and welding work station. The tool comprises an outer ring and an inner ring; the outer ring comprises an outer left ring body and an outer right ring body; a connecting plate and a connecting supporting lug are welded between the outer left ring body and the outer right ring body; the inner ring comprises an inner left ring body and an inner right ring body; the inner left ring body and the inner right ring body are not sealed; a hooping hydraulic oil cylinder connecting two ends of the inner left ring body and the inner right ring body is arranged between the outer ring and the inner ring and at the opening positions of the inner left ring body and the inner right ring body; a pairing hydraulic oil cylinder is further connected between the inner left ring body and the inner right ring body; and the inner ring is connected with the connecting supporting lug on the outer ring through a pin shaft. The tool effectively solves the problems of pairing and deformation control in welding large barrels, the problem that a welding operation view scale of a welding robot is small in automatic welding is effectively solved, 360-degree circular welding of longitudinal seams of the large barrels is achieved, the welding quality is guaranteed, and the barrel welding production efficiency is greatly improved.

Description

Technical field [0001] The invention relates to the technical field of welding, in particular to a welding tool applied to a butt welding workstation of a cylindrical longitudinal circumferential seam group. Background technique [0002] With the long-distance transmission of oil, natural gas, and water, as well as the municipal water supply and drainage construction required for urbanization, there are more and more applications of large metal cylinders, but the length of large metal cylinders produced by steel companies is not long enough. In order to improve transportation, construction, and production efficiency, large metal cylinders need to be welded and spliced. At present, most welding uses manual welding, which has low welding efficiency and difficult quality assurance. In order to improve welding quality and efficiency, the existing technology is exploring automatic welding and robot welding. However, it is difficult to group and control deformation during welding of la...

AI Technical Summary

Problems solved by technology

[0002] With the long-distance transmission of oil, natural gas and water, as well as the municipal water supply and drainage construction required by urbanization, there are more and more applications for large metal cylinders, but the length of large metal cylinders produced by steel companies is not long enough. In order to improve the efficiency of transportation, construction, and production, it is necessary to weld and splice large metal cylinders. At present, most of the welding is done manually, which has low welding efficiency and difficult quality assurance.

In order to improve welding quality and efficiency, the existing technology is exploring automatic welding and robot welding, but it is difficult to assemble large cylinders during welding and control deformation during welding. The 360°circumferential welding of the longitudinal seam of the body has construction difficulties, and there is no suitable tooling to ensure the welding quality, which seriously restricts the production efficiency

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