Thin-walled barrel welding assisting tool

Abstract

The invention discloses a thin-walled barrel welding assisting tool. The thin-walled barrel welding assisting tool comprises an inner support assembly and an inner support lifting appliance; the innersupport assembly comprises a bottom platform, a supporting frame I, and a plurality of supporting plates I which are uniformly distributed in the circumferential direction of the supporting frame I;the supporting plates I are connected with drivers I arranged on the supporting frame I, and driven by the drivers I to synchronously move in the radial direction, and one side surfaces of the supporting plates I are closely attached to the inner wall surface of a barrel section; the supporting frame I is arranged on a vertical lifting mechanism; the inner support lifting appliance comprises a supporting frame II and a plurality of supporting plates II which are uniformly distributed in the circumferential direction of the supporting frame II; the supporting plates II are connected with drivers II arranged on the supporting frame II, and driven by the drivers II to synchronously move in the radial direction, and one side surfaces of the supporting plates II are closely attached to the inner wall surface of the barrel section; and the supporting frame II is arranged on a lifting moving mechanism so that the barrel section can be lifted and conveyed to the bottom platform. According to the thin-walled barrel welding assisting tool, the influence of the gravity factor on welding deformation can be eliminated, girth welding station automation is advantageously achieved, and the assembling quality and efficiency are improved.

Description

technical field [0001] The invention relates to the field of mechanical welding, in particular to a thin-walled cylindrical welding auxiliary tooling. Background technique [0002] Pressure vessel is a comprehensive product involving multiple industries and interdisciplinary fields. It is widely used in food, chemical, petroleum, metallurgy, aviation, aerospace and many other industries. With the gradual development of pressure vessel equipment towards larger diameters and thinner walls, how to manufacture non-standard pressure vessels efficiently and with high quality has become an urgent problem to be solved. The welding of two groups of paired girth seams of large-diameter thin-walled cylinders is an extremely important part in the manufacture of non-standard pressure vessels. This is because when the relative rigidity of the cylinder is low, the centering of the circular seam welding is poor and the amount of misalignment is large, and the required welding quality canno...

AI Technical Summary

Problems solved by technology

However, because the wall thickness is too thin and the diameter of the cylinder is large, the influence of the cylinder’s own weight deformation cannot be completely eliminated by only relying on the round tooling, and the positioning accuracy of the cylinders during horizontal assembly is often not guaranteed, which leads to the failure of the cylinder during welding. Uneven force in all directions, misalignment and deformation are difficult to control

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