Plasma additive welding device with laser positioning function

The utility model provides a plasma additive welding device with laser positioning, which belongs to the technical field of plasma additive welding equipment, and comprises a positioner, a welding mechanism and a laser positioning mechanism, the positioner is used for fixing a workpiece and has degree of freedom for adjusting the angle of the workpiece; the welding mechanism comprises an adjusting support arranged on one side of the position changing machine and a welding gun arranged on the adjusting support, and an adjusting driver used for adjusting the welding gun is arranged on the adjusting support. The laser positioning mechanism comprises a laser probe arranged on the welding gun and a controller arranged on the adjusting support, and the controller is electrically connected with the laser probe and the adjusting driver and used for controlling movement of the adjusting driver according to data signals transmitted by the laser probe so as to control movement of the welding gun. The welding gun can be