Full-automatic laser straight seam welding machine

The utility model provides a full-automatic laser straight seam welding machine. Comprising a machine table, two clamping devices arranged on the machine table and used for clamping the two sides of a workpiece to be welded correspondingly, and a first linear driving device arranged between the clamping devices and the machine table and used for driving the clamping devices to move along the Y axis. The rotating device is arranged on the first linear driving device and used for driving the clamping device to rotate so as to bend the to-be-welded workpiece into a barrel shape, and the laser welding device is arranged on the machine table and used for welding a straight seam formed by the two side edges of the to-be-welded workpiece after the to-be-welded workpiece is bent into the barrel shape. Under the cooperation of the first linear driving device and the rotating device, the clamping device can bend the to-be-welded workpiece into a cylindrical product initial structure shape, and the laser welding device