Welded flange pressure testing device

The utility model discloses a welding flange pressure testing device, which comprises a base, a support table and a pressure cylinder, the support table is fixedly mounted on the upper surface of the base close to one end, the pressure cylinder is fixedly mounted on the upper surface of the support table, a threaded rocker is movably mounted on the rear surface of the support table, and the threaded rocker is movably mounted on the rear surface of the support table. A positioning column is arranged at the front end of the supporting table, a bracket is fixedly installed on the upper surface of the base and located in front of the supporting table, a motor is fixedly installed on the upper surface of the base and located in front of the bracket, a stop frame is fixedly installed on the upper surface of the base and located in front of the motor, and a test piece is embedded between the stop frame and the bracket. The surface of the test piece is fixedly sleeved with a transmission piece. According to the press