Multi-station plasma welding machine

The utility model relates to the technical field of plasma welding machines, in particular to a multi-station plasma welding machine. The plasma welding device comprises a multi-station adjusting assembly, the multi-station adjusting assembly is arranged on the inner side of a mounting frame, and a driving assembly used for controlling the plasma welding device is arranged above the multi-station adjusting assembly. The multi-station adjusting assembly comprises a rotating column, the rotating column is rotationally connected to the inner wall of the mounting frame through a bearing, a motor is fixedly mounted on the outer wall of the mounting frame, the output end of the motor is in transmission connection with the rotating column, and the outer portion of the rotating column is fixedly sleeved with two placement discs; according to the plasma welding device, pipelines needing to be welded are sequentially installed in the U-shaped control frames through the arranged fixing assemblies, when the pipelines are