Automatic welding device and automatic welding process for steel components

The invention belongs to the technical field of steel component welding, particularly relates to an automatic welding device and an automatic welding process for steel components, and aims to solve the problems of high manual welding workload, high labor intensity and high requirements on quality and skills of staff. Weld joints formed by welding are not attractive, and weld legs are inconsistent in size; in order to solve the problems that in the prior art, when the production task load is large, labor consumption of workers is too large, and potential safety hazards exist, according to the scheme, the automatic welding robot comprises a bottom plate, a robot control cabinet, a robot base, a gun cleaner and two double-shaft position changing machines are arranged at the top of the bottom plate, and an automatic welding robot body is arranged at the top of the robot base. By means of the automatic welding process, automatic welding of the steel structural part can be achieved, operation is easy and convenient