Brake disc repairing and processing machine tool

The utility model discloses a brake disc repair processing machine tool, which relates to the technical field of brake discs and comprises a processing machine tool body, a protective baffle is fixedly mounted on one side of the top of the processing machine tool body, a sliding rail is arranged on the inner side of the protective baffle, and a polishing frame is movably mounted in the sliding rail. A grinding disc is movably mounted in the grinding frame, a protective cover is fixedly mounted on one side of the grinding frame, and a protective mechanism is fixedly mounted on the inner wall of the protective cover. Through mutual cooperation of the protective cover, the fixing plate, the lifting column, the auxiliary plate and the scraping plate, the problem that when a polishing mechanism of the device conducts polishing machining, much waste is generated and is prone to being accumulated on the surface of the polishing mechanism, and consequently next machining of the device is affected is solved, the funct