A robotic arc welding method suitable for horn structure splicing

Abstract

The invention provides a robot arc welding method suitable for splicing of horn-shaped structures. The method comprises the following steps that every two horn-shaped plates to be assembled are spliced, and protrusion parts are arranged on splicing heads and are used for filling materials into welding seams in a splicing welding mode; the horn-shaped plates to be assembled are assembled and fixed; a welding space lattice is set; welding gun paths are determined according to the welding space lattice and are stored in an arc welding robot. The robot arc welding method improves welding seam forming evenness and welding quality stability. Compared with manual argon tungsten-arc welding, pulse welding of the arc welding robot forms fish scale-shaped welding seams which are even and beautiful. Acquired welding seams are uniform in weld penetration under connector size characteristic control. Compared with a horn body formed by furnace brazing in a furnace, welding seams formed by welding according to the robot arc welding method do not have residual brazing fluxes, follow-up machining processes are reduced, and salt mist resisting performance, hot and humid resisting performance and mildew preventing performance of a connector are improved.

Description

technical field [0001] The invention relates to the technical field of arc welding, in particular to a robot arc welding method suitable for splicing horn body structures. Background technique [0002] As one of the typical structures of radar antennas, the horn body is mostly used for the transmission and reception of low-frequency signals. It is an important part of military electronic equipment. The service environment is harsh, and the welding seam is required not only to have sufficient connection strength to resist the vibration of the application environment Require. At the same time, it also needs to have good three-proof performance, that is, anti-salt spray, anti-humidity and anti-mold. [0003] Generally, the horn body structure is an aluminum alloy thin-walled structure. The splicing of the horn body needs to ensure the inner cavity size and surface accuracy. The welding methods suitable for aluminum alloy thin-walled structures mainly include new fusion welding...

AI Technical Summary

Problems solved by technology

Chloride ions are easy to form galvanic corrosion at the position of the brazing seam under service conditions, so that the residual flux needs to be cleaned after brazing, which is labor-intensive and cannot be guaranteed to be completely cleaned

Due to the long preparation period and hidden dangers of three defenses for the horn body structure, its splicing technology needs to be upgraded urgently

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