Grinding device for bearing steel balls

The utility model discloses a grinding device for bearing steel balls, which comprises a bottom plate, two side vertical plates are arranged at the top of the bottom plate, four connecting columns are arranged on one side of one side vertical plate, a grinding device is arranged on one sides of the four connecting columns, an air cylinder is arranged on one side of the other side vertical plate, one end of the air cylinder is connected with a motor fixing frame, and the other end of the air cylinder is connected with a motor. A motor is arranged on the inner side wall of the motor fixing frame, and the output end of the motor is rotationally connected with the motor fixing frame through a first bearing and connected with the grinding device. The second cast iron disc is pushed through the air cylinder to be attached to the first cast iron disc, a large number of ball blanks are put into the second cast iron disc from arc holes in the tops of the first cast iron disc and the second cast iron disc till circular