Flange sealing surface machining mechanism

The utility model discloses a flange sealing surface machining mechanism which comprises a bottom plate, a supporting column is fixedly connected to the top end of the bottom plate, and a connecting shell is fixedly connected to the top end of the supporting column. The clamping assembly is installed at the left side end of the interior of the connecting shell and comprises a bearing, a rotating block, a lead screw, a handle, a lead screw sleeve, a connecting plate, a sliding groove and a clamping plate, the bearing is fixedly connected to the left side end of the interior of the connecting shell, the rotating block is rotationally connected to the interior of the bearing, and the lead screw is fixedly connected to the right side end of the rotating block; the outer side walls of the lead screws are in threaded connection with lead screw sleeves, the top ends of the lead screw sleeves are provided with connecting plates, the top ends of the connecting plates are fixedly connected with clamping plates, the top