Metal pipe surface forming device

The utility model discloses a metal pipe surface shaping device with even pressure, smooth shaping, and multiple functions, which is composed of a former and a mould, wherein the former comprises a casing, a stretching rod, a sleeve pipe and a fixing element. The fixing element is fixed on the front end of the stretching rod, and the casing is sheathed on the stretching rod and does the relative movement. The sleeve pipe can be sheathed on the stretching rod and be positioned between the casing and the fixing element, and the mould comprises an upper mould and a lower mould. After the moulds are closed, a holding part is formed between the upper mould and the lower mould for placing a metal pipe. The inner cavity surface of the holding part is provided with at least one concave shaping part for forming convex strips of the metal pipe, and the shaping part can be a circular arc groove as well as in a character or a pattern shape. The fixing element is fixed on the front end of the stretching rod in a screw thread or a clamping mode and can be formed into the integrated structure with the stretching rod. The sleeve material is made of plastic. The utility model can be used for extruding and shaping the bamboo joint shape or a pattern character on a surface of the metal pipe material.