Pipe making machine capable of achieving automatic grinding

The utility model relates to the technical field of pipe making, and discloses a pipe making machine capable of automatically polishing, which comprises a base and a small polishing disc, a polishingframe is installed at the top of the base, a bearing is embedded in the circle center of the polishing frame, a rotating disc is movably installed on the inner side of the bearing, a large polishing disc is embedded in the inner side of the rotating disc, and polishing brushes are installed on the inner side of the large polishing disc and the inner side of the small polishing disc respectively. Mounting grooves are formed in the two sides of the rotary disc, screw holes are formed in the mounting grooves, mounting blocks are integrally formed in the two sides of the large grinding disc, boltsare inserted into the mounting blocks, and the tail ends of the bolts are located in the screw holes and rotationally fixed. The pipeline penetrates through the polishing brush, at the moment, the motor can drive the large po