One-shot forming machine of ring shaped winding pipe of instrument

The utility model relates to a gauge annular bent pipe once forming machine, which mainly comprises a bent pipe die holder and bend pipe wrench, wherein the bent pipe die holder consists of a base, a bent pipe die body, a guide groove and a pipe clamping wheel set. The bent pipe wrench consists of a wrench stem, a rotating shaft and a pipe guiding wheel set. During use, the rotating shaft of the bent pipe wrench is inserted into a centre hole of the bent pipe die body to rotate around the bent pipe die body. The machine is used for forming an annular bend for a gauge pipe at one time, with reduced labor force, and greatly improved on spot installation process of pressure meters. The machine has the advantages of simple and convenient operation, high bending efficiency, batch production of products with nice appearance, uniform shape and reliable quality, and obvious time and labor saving effects.