Pipe fitting is with shape machine that expands

The utility model discloses a pipe fitting is with shape machine that expands, which comprises a frame, be provided with the thing portion of carrying, the drive year first rotation portion of thing portion pivoted in the frame, it is provided with the bulge that supplies the pipe fitting to cup joint in the thing portion to carry, a plurality of expansion block, each are radially cut apart into along the pipe fitting to the bulge expansion block is connected along radially sliding with a year thing portion of pipe fitting, expansion block is connected with the first drive division that drive expansion block removed to the pipe fitting direction, the one side of carrying thing portion is provided with and cooperates the shaping portion with the venturi tube spare that expands with the expansion block convex -concave, and its technical scheme main points are expansion block and the convex -concave cooperation of shaping portion, makes the pipe fitting take place the bloated shape of circumference at expansion