Thin-wall barrel high-energy beam precise welding tool and welding method

Abstract

Disclosed are a thin-wall barrel high-energy beam precise welding tool and welding method. The thin-wall barrel high-energy beam precise welding tool comprises a fixed support base, a front-side arc-shaped tool compressing device, a front-side arc-shaped fixing tool and a reverse-side arc-shaped fixing tool. A to-be-welded thin-wall barrel placed on the thin-wall barrel high-energy beam precise welding tool can be fixed stably through the front-side arc-shaped fixing tool and the reverse-side arc-shaped fixing tool. The front-side arc-shaped tool compressing device compresses on the front-side arc-shaped fixing tool. A high-energy beam welds a to-be-welded weld joint after passing a weld joint A and a weld joint B. After welding, a screw or a pneumatic pressure device is loosened, the front-side arc-shaped fixing tool is taken out, and the welded barrel is taken out. Compared with the prior plane fixing mode, the thin-wall barrel high-energy beam precise welding tool and welding method improve the stability of barrel fixing and precision of radian, barrel deformation during fixing is avoided, the good shape dimensional precision of the thin-wall barrel is ensured, operation is convenient, so that operation time is saved, and welding work efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of metal material welding, in particular to a high-energy beam precision welding tool for a thin-walled cylinder and a welding method. Background technique [0002] Thin-walled cylinders are frequently used components in the aerospace field. For example, the inner cavity of a fuel tank cylinder is filled with fuel, and the movement of the fuel is realized by the unidirectional push of the piston along the inner wall of the cylinder. In order to ensure the utilization rate of fuel, it is required that there is no gap between the piston and the inner wall of the cylinder as much as possible to reduce the influence of fuel residue on power. Therefore, not only the cylinder is required to have a high roundness, but also the surface roughness of the inner wall is required to be extremely high. However, due to the limitation of the processing technology, the overall machining of the cylinder cannot be realized, an...

AI Technical Summary

Problems solved by technology

However, for high-energy beam welding of thin-walled cylinders with precise dimensions, it is difficult to achieve precision welding and manufacturing of thin-walled cylinders without good tooling.

If the usual electron beam or laser penetration welding is used, it will be a big problem to clean the metal spatter in the inner cavity. Due to the lack of assembly accuracy, it is difficult to control the geometric size after welding, and the shortening after welding and the coaxiality of the cylinder will occur. Changes, precision control is very difficult

Images