Pipe flaring die

The utility model relates to a pipe flaring die which solves the problems that the flaring size of an existing flaring pipe is difficult to control and the machining efficiency is low. A mold frame is arranged on one side of the upper portion of a rack, a supporting plate is arranged at the bottom of the mold frame, a lower closing mold is arranged above the supporting plate, a lower positioning groove is formed in the top face of the lower closing mold, a top plate is arranged at the top of the mold frame, a lead screw sleeve is arranged on the top plate, a lead screw is arranged in the lead screw sleeve, an upper closing mold is arranged at the lower end of the lead screw, and an upper positioning groove is formed in the bottom face of the upper closing mold. A clamping and pressing clamp is arranged on the portion, on one side of the mold frame, of the rack, a telescopic flaring conical head is arranged at the front end of the clamping and pressing clamp, and the axis of the flaring conical head is aligned