Rapid pipe-cutting mechanism with compound motion

Disclosed is a rapid pipe-cutting mechanism with compound motion. The rapid pipe-cutting mechanism with compound motion comprises a spinning blade (1.2), a blade spindle (1.4), a drive mechanism of the blade spindle and a pipe gripper mechanism. The rapid pipe-cutting mechanism with compound motion is characterized by further comprising a galactic gear train (1.3). The pipe gripper mechanism is on the same axle with a sun gear (1.3.2) of a planetary gear train. A blade gear (1.4.1) on the blade spindle (1.4) is engaged with a planetary gear (1.3.1) of the planetary gear train. Two tubes of a two-tube rocker arm are respectively sleeved on the blade spindle (1.4) and a planetary axle (1.5). The planetary axle (1.5) is fixed on a spinning gear case. The rapid pipe-cutting mechanism with compound motion is simple in structure, low in cost, complete in functions. The blade can conduct rotation and revolution simultaneously and the blade can rotate automatically and the cut surface is complete and thereby ensuring high efficiency and rapidness.