Welding device with welding seam deterioration prevention function for metal welding

Abstract

The invention discloses a welding device with a welding seam deterioration prevention function for metal welding in the technical field of metal welding. The welding device comprises a mounting arm, a welding head is mounted at the bottom of the mounting arm, and a conversion type gas supply assembly is arranged on the outer wall of the welding head. A gas supply pipe fitting is arranged in the conversion type gas supply assembly, two sets of arc-shaped gas supply pipes can make contact with each other to be arranged on the outer wall of the welding head in a sleeving manner by driving a bidirectional electric telescopic rod, and therefore the purpose that protective gas is blown in coaxially for use is achieved; and after the bidirectional electric telescopic rod is driven to enable the two sets of arc-shaped gas supply pipes to be separated, then the bidirectional electric telescopic rod is driven to enable two sets of arc-shaped gas supply pipes to be in contact with each other, and then a cylinder II is driven to enable a gas supply pipe formed by the contact of the two sets of arc-shaped gas supply pipes to swing to an inclined state to correspond to the welding position of the welding head, so that the use of blowing protective gas from the side is realized; and a user can conveniently and flexibly adjust and use the blowing-in manner of supplied gas according to the welding requirement, the welding seam quality of the welding position is guaranteed, and the working efficiency is also improved.

Description

technical field [0001] The invention relates to the technical field of metal welding, in particular to a welding device for metal welding with anti-weld deterioration. Background technique [0002] Sheet metal is a commonly used reinforcing component in building construction. When it is used, it is welded according to actual needs. There are many energy sources for modern welding, including gas flame, electric arc, laser, electron beam, friction and ultrasonic waves. Among them, shielding gas needs to be introduced when welding metal plates by laser, which can protect the weld pool to reduce or even avoid oxidation, can effectively reduce the spatter generated during the welding process and can effectively reduce weld porosity. Advantages, the traditional blowing method of introducing protective gas is mostly paraxial side blowing, but paraxial side blowing is only suitable for straight-line welds, and coaxial blowing is required for plane closed figure welds. If the user ch...

AI Technical Summary

Problems solved by technology

Among them, shielding gas needs to be introduced when welding metal plates by laser, which can protect the weld pool to reduce or even avoid oxidation, can effectively reduce the spatter generated during the welding process and can effectively reduce weld porosity. Advantages, the traditional blowing method of introducing protective gas is mostly paraxial side blowing, but paraxial side blowing is only suitable for straight-line welds, and coaxial blowing is required for plane closed figure welds. If the user chooses the wrong The blowing method will lead to poor weld seam and affect the welding quality, which leads to the need for the user to work on two welding devices with different gas supply devices when working, which is more troublesome and reduces work efficiency, and At the same time, the existing welding device does not have a windproof structure, and the blown protective gas is easily affected by the wind flow, which further affects the quality of the weld

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