Lifting and rotating platform for welding pressure container

The utility model discloses a lifting and rotating platform for welding a pressure vessel, which comprises a support base, a stand column is arranged on a support connecting seat, and a placing bottom plate capable of rotating around the stand column is arranged at the tail end of the stand column; a lifting base capable of rotating around the stand column is arranged in the middle of the stand column, the lifting base and the containing bottom plate are connected through a first lead screw, and the lifting base synchronously drives the containing bottom plate to rotate when rotating. A first speed reducer is arranged on the placement bottom plate, the first speed reducer drives a first screw rod to rotate, and the first screw rod rotates to drive a lifting seat to move up and down; the lifting base is fixedly connected with the swing mechanism through the connecting support, and the welding gun head is arranged on the swing mechanism. And the lifting seat can rotate around the upright post and can also move