Wind power bearing hard turning machining device and machining method thereof

The invention provides a wind power bearing hard turning machining device and a machining method thereof, and relates to the field of hard turning machining. A portal frame is fixedly installed on the rear side of the upper end face of the machine tool, a beam is arranged on the front side of the portal frame, a vertical tool rest is installed on the front side of the beam, and a turning tool is installed at the lower end of the vertical tool rest. Through the arrangement of the automatic scrap sweeping mechanism, in the operation process of the driving motor, six sweeping brushes can be finally driven to rotate clockwise to sweep scraps on a filter screen plate to the upper portion of a filter screen in the material collecting box, so that automatic scrap cleaning is achieved, manual shutdown cleaning is not needed, the production efficiency is improved, and the labor intensity of workers is reduced. More time and labor are saved; the problems that a large number of chippings can be generated in the wind pow