Multi-layer and multi-weld-seam welding limiting device

Abstract

The invention relates to a multi-layer and multi-weld-seam welding limiting device, and belongs to the technical field of aero-engines. The multi-layer and multi-weld-seam welding limiting device comprises a base plate, a support block is arranged on the base plate and is cylindrical, an inner circular rotary disc and an outer circular rotary disc are coaxially arranged inside and outside the support block correspondingly, and the inner circular rotary disc and the outer circular rotary disc can rotate around a central shaft of the support block; and a plurality of inner circle welding seam limiting devices for limiting parts to be welded are evenly distributed in the inner circle rotary disc, and a plurality of outer circle welding seam limiting devices for limiting the parts to be weldedare evenly distributed outside the outer circle rotary disc. According to the multi-layer and multi-weld-seam welding limiting device, laser welding is adopted, multiple layers of welding seams distributed in the circumferential inner circle direction and the circumferential outer circle direction in the multi-angle upward direction are limited, and therefore the welding quality and position requirements are met.

Description

technical field [0001] The invention belongs to the technical field of aero-engines, and in particular relates to a multi-layer and multi-seam welding limiting device. Background technique [0002] In an aero-engine, manual argon arc welding is used when welding multiple weld seams distributed in the direction of the inner circle, outer circle, and multi-angle upwards. Due to the narrow space of the parts, the use of a limit device will inevitably block the welding route, which cannot be effectively carried out during the welding process. For positioning, the fixture must be disassembled after positioning welding, and all welds are welded in a free state. The welding quality depends entirely on the welder's skills. After welding, the local welding deformation is relatively large, and the full-circle welding or roundness deformation can reach more than 5mm. Therefore, there is an urgent need for a limiting device and a corresponding welding method that can replace traditional...

AI Technical Summary

Problems solved by technology

[0002] In an aero-engine, manual argon arc welding is used when welding multiple weld seams distributed in the direction of the inner circle, outer circle, and multi-angle upwards. Due to the narrow space of the parts, the use of a limit device will inevitably block the welding route, which cannot be effectively carried out during the welding process. For positioning, the fixture must be disassembled after positioning welding, and all welds are welded in a free state. The welding quality depends entirely on the welder's skills.

Images