Bent conducting nozzle type twin-wire narrow-gap MIG/MAG (metal inert gas/metal active gas) welding torch

Abstract

The invention aims to provide a bent conducting nozzle type twin-wire narrow-gap MIG / MAG (metal inert gas / metal active gas) welding torch, which comprises a welding torch joint, a welding torch box and a three-channel plug-in narrow-gap shielding gas nozzle. The welding torch joint is connected with the welding torch box, the welding torch box is connected with the three-channel plug-in narrow-gap shielding gas nozzle and comprises a guide rail, a slider, a lead screw, a T-shaped connecting part, an L-shaped connecting part, a conducting rod and a bent conducting nozzle, the lead screw is connected with the slider, the slider is connected with the T-shaped connecting part, the T-shaped connecting part is connected with the L-shaped connecting part, and the L-shaped connecting part is connected with the conducting rod and the bent conducting nozzle. The welding torch is simple in design, compact in structure and stable and reliable in performance, both the distance and the included angle between twin wires can be adjusted according to practical production, the problem of incomplete fusion of lateral walls during narrow-gap welding can be solved effectively by the aid of the bent conducting nozzle, workpieces with large plate thicknesses can be welded, and welding efficiency is high. The welding torch has the advantages of narrow-gap welding and twin-wire welding.

Description

(1) Technical field [0001] The invention relates to welding technology, in particular to a curved conductive tip type double-wire narrow-gap MIG / MAG welding torch. (2) Background technology [0002] In recent years, with the continuous development of industrial technology, welded structures tend to be larger, so the application of thick plates is becoming more and more extensive, and the performance requirements for welded joints are also getting higher and higher. When using traditional welding methods to weld thick plates, due to the large groove size, the amount of metal filling required is significantly increased, resulting in large material consumption and increased heat input, which eventually leads to increased welding stress and welding deformation, and the welded joints The mechanical properties are reduced, and the welding workload is also increased, which prolongs the production cycle of the workpiece. Compared with traditional welding methods, narrow gap welding...

AI Technical Summary

Problems solved by technology

When using traditional welding methods to weld thick plates, due to the large groove size, the amount of metal filling required is significantly increased, resulting in large material consumption and increased heat input, which eventually leads to increased welding stress and welding deformation, and the welded joints The mechanical properties are reduced, and the welding workload is also increased, which prolongs the production cycle of the workpiece

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