Universal friction stir welding tool for aluminum alloy side wall plate and car roof plate

The utility model discloses a universal friction stir welding tool for an aluminum alloy side wall plate and a car roof plate, which comprises a hydraulic clamping structure, a longitudinal beam transverse chute device, a rotating mechanism, an angle driving device and a tool framework, and the tool framework comprises a base, and a longitudinal beam and a rotatable bracket which are arranged on the base; the longitudinal beam transverse sliding groove device is located below the longitudinal beam and used for adjusting transverse movement of the longitudinal beam. The rotating mechanism is located between the longitudinal beam and the rotatable support, and both the rotating mechanism and the rotatable support can rotate by an angle; the hydraulic clamping structure is located above the longitudinal beam and the rotatable support and used for hydraulically pressing and fixing the side wall plate or the car roof plate to be assembled. Adjustment in the width direction is achieved through matching of the slidi