Stop tongue piece welding device and welding method thereof

Abstract

The invention relates to a stop tongue piece welding device and a welding method thereof. The welding device comprises an upper electrode and a lower electrode, wherein the lower electrode is matched with a base, the lower electrode is provided with a shell matched with a stop tongue piece, and the upper electrode is provided with an outer cone tightly matched with the surface of a resistance welding machine; and the lower electrode is provided with a sliding groove for storing the stop tongue piece, a positioning block for limiting the position of the stop tongue piece is installed in the sliding groove in a sliding manner, and a boss which abuts against the position of the stop tongue piece to focus welding energy is further arranged in the sliding groove. According to the stop tongue piece welding device and the welding method thereof, the positioning block and the boss are used for limiting the stop tongue piece, and operators are responsible for clamping parts, so that the labor amount is reduced, the stability and reliability of products are improved, and meanwhile the welding size consistency of the stop tongue piece is good; and according to the stop tongue piece welding device and the welding method thereof, traditional argon arc welding is replaced, the welding heat affected area is small after welding, and deformation is small.

Description

Technical field [0001] The present invention relates to the field of aerospace manufacturing, in particular to a stop tongue welding device and a welding method thereof. Background technique [0002] At present, argon arc welding is mainly used, and the outer surface of the outer casing is large, 90 ° is made in the hole, and the welding wire is dissolved into a liquid forming molten tank, so that the stop tongue and the outer casing are organically bonded. . Due to the large heat affected area, the welding tool is relatively large, and the product assembly is difficult and the welding size is unstable. The thermal impact area is largely caused by deformation, hardness reduction, sand eye, local annealing, and excessive internal stress, affecting the binding force and reliability of its stop tongue and housing. Therefore, in order to solve the above problems, a stopper welding device and its welding method are designed. Inventive content [0003] In order to solve the above tech...

AI Technical Summary

Problems solved by technology

Due to the large heat-affected area, the difference between the cold and the hot of the welding tool is large, the product assembly is difficult and the welding size is unstable

The large heat-affected area causes deformation of parts, lower hardness, sand holes, local annealing, excessive internal stress and other defects, which affect the bonding force and reliability of the stop tongue and the shell

Images