Welding system and welding method with cooperation of arc rotation and mechanical vibration

The invention discloses an electric arc rotation and mechanical vibration collaborative welding system and method, and belongs to the technical field of intelligent manufacturing. Comprising a vibration mechanism, a welding mechanism and a control unit, the vibration mechanism is arranged to fix a target workpiece and vibrate the target workpiece in at least one direction, the welding mechanism is used for welding the target workpiece, and the control unit controls the vibration mechanism and the welding mechanism. And the vibration mechanism and the welding mechanism are made to weld the target workpiece according to the corresponding instructions. According to the electric arc rotation and mechanical vibration collaborative welding system, collaborative mechanical vibration is additionally arranged, homogenization of wear-resistant alloy of a stack-welded joint and refinement of crystal grains are achieved, meanwhile, in order to achieve effective adjustment of the mechanical vibration frequency in the weld