Polishing device for outer wall of valve pipe fitting

The utility model provides a polishing device for the outer wall of a valve pipe fitting. The valve pipe fitting outer wall grinding device comprises a supporting plate, a mounting plate is fixedly connected to one side of the supporting plate, an opening frame is fixedly connected to the top of one side of the mounting plate, a transverse plate is fixedly connected between one side of the front face and one side of the back face of the inner wall of the opening frame, and a bottom plate is fixedly connected to one side of the top of the transverse plate. And one side of the bottom plate is fixedly connected with a trapezoidal plate. According to the grinding device for the outer wall of the valve pipe fitting, the distances between the first grinding block and the two second grinding blocks are adjusted, so that the surfaces of pipe fittings with different pipe diameters can be ground, then the opening frame is moved up and down to be adjusted, so that the pipe fittings with different lengths can be ground,