Ship sternpost welding device for ship machining

The utility model belongs to the technical field of welding devices, and discloses a ship stern post welding device for ship processing, which comprises a base, a first mounting seat is mounted in the base, a worm gear is mounted at the top end of the first mounting seat, a first rotating shaft is fixedly connected to the top end of the worm gear, a first motor is fixedly mounted on one side of the base, and a second motor is fixedly mounted on the other side of the base. The end, close to the worm gear, of the first motor is rotationally connected with a worm, the worm penetrates through the base and is meshed with the worm gear, a first mounting plate is mounted at the top end of the base, two supporting frames are symmetrically mounted at the top of the first mounting plate, and a second mounting base is fixedly mounted at the top of the first mounting plate. Through the arrangement of the worm gear, the worm and the movable plate, parts, at different angles, of a workpiece can be rapidly welded during wel