Manual welding device and method for barrel and mounting edge of thin-wall casing

Abstract

The invention relates to a manual welding device and method for a barrel and a mounting edge of a thin-wall casing. One end of a connecting frame of the device is fixedly connected to a welding gun body, and the other end of the connecting frame is hinged to an adapting seat. A supporting rod mounting hole is formed in the middle of the adapting seat. One end of a hollow supporting rod is located in the supporting rod mounting hole, and the other end of the hollow supporting rod is connected with a protection dragging cover. A central hole of the hollow supporting rod is a ventilation hole, one end of the ventilation hole is communicated with an argon gas source, and the other end of the ventilation hole is communicated with an inner cavity of the protection dragging cover. A housing opening of the protection dragging cover corresponds to the back surface of a weld joint of the barrel and the mounting edge of the thin-wall casing, and an argon rectification net is arranged at the housing opening. The method includes the steps that the barrel and the mounting edge of the thin-wall casing are assembled and positioned together and subjected to positioned welding, and argon is supplied to a welding gun and the hollow supporting rod simultaneously; the relative positions and the included angle of the hollow supporting rod and the connecting frame are adjusted manually, and the housing opening of the protection dragging cover is located on the back surface of the weld joint; the angle of the welding gun is adjusted manually, the welding gun is located in a welding position, and then a power source is switched on for welding.

Description

technical field [0001] The invention belongs to the technical field of aero-engine component manufacturing, and in particular relates to a manual welding device and method for a thin-walled casing body and a mounting edge. Background technique [0002] In the development task of the thin-walled casing of a new type of aero-engine, due to the small number of developments, when it is necessary to weld the thin-walled casing and the mounting edge, there is often not enough time due to the urgency of the task To design and manufacture the corresponding welding tooling, it is impossible to carry out automatic welding processing, so manual welding can only be carried out manually. [0003] Due to the special structure of the thin-walled casing and the mounting edge, the requirements for welding quality are very high, and all welding is performed by skilled workers, and two workers must cooperate to complete the welding. [0004] However, since the welding work must be completed b...

AI Technical Summary

Problems solved by technology

[0004] However, since the welding work must be completed by two workers, even if the worker holding the welding torch does not make any mistakes, the other worker may not cooperate properly, which will eventually lead to poor welding quality. compliance issues

[0005] Therefore, it is urgent to find a brand-new solution, which should have the ability to completely avoid the occurrence of workers who do not fit in place, and effectively ensure the welding quality of the thin-walled casing and the mounting edge.

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