Consumption type friction stir welding device

The utility model discloses a consumption type friction stir welding device and belongs to the technical field of welding. Moving the portal frame; the movable beam is located in the movable portal frame and can slide relative to the movable portal frame in the vertical direction; the first driving part is used for driving the moving beam to slide relative to the moving portal frame; the first end of the sleeve is fixedly connected with the movable beam, and the second end of the sleeve is a free end; the hollow shaft is rotatably connected with the sleeve; the core material penetrates through the center hole of the hollow shaft; the second driving part is used for driving the hollow shaft to rotate along the central axis so as to drive the core material to rotate; and the pressure applying part is arranged on the movable portal frame. The feeding direction and the feeding distance of a core material can be accurately adjusted according to welding parts of different sizes, the depth of the core material in a