Precision corrugated pipe welding device

The invention discloses a precision corrugated pipe welding device. A base is included. The upper end face of the base is symmetrically provided with two rotation assemblies. Each rotation assembly comprises a sleeve supporting base, a fixing sleeve and a rotation inner sleeve. A clamp pipe assembly is further arranged between the two rotation assemblies and comprises a clamp sleeve base, a fixedclamp sleeve and a movable clamp sleeve, and a welding gun is arranged on the clamp pipe assembly. The base is further provided with a synchronous driving mechanism for driving the rotation assemblieson the two sides to synchronously rotate. According to the precision corrugated pipe welding device, the synchronous driving mechanism is used for driving the rotation assemblies to synchronously move, the clamp pipe assembly is fixedly arranged between the two rotation assemblies, accordingly, the welding gun is kept fixed during welding, corrugated pipes do ring-direction uniform-speed rotationrelative to the welding gu