Grinding equipment convenient for grinding inside and outside and used for bearing frame machining

The polishing equipment comprises a mounting frame, a connecting frame is fixed to the inner top wall of the mounting frame, a driving motor is arranged on the outer side of the connecting frame, a transmission belt is rotationally connected to the outer side of an output shaft of the driving motor, and an outer side polishing mechanism is fixed to the top of the mounting frame; by arranging the self-adaptive fixing mechanism, self-adaptive fixing of the bearing frame can be conveniently completed when the bearing frame is subjected to internal and external grinding, the bearing frame can meet the use requirements of bearing frames with various inner diameter sizes, and the purpose of facilitating internal and external grinding is achieved; according to the auxiliary fixing device, the outer side limiting mechanism is arranged, the positioning sleeve can be attached to the outer side of the corresponding bearing frame, the auxiliary limiting effect on the bearing frame is achieved, certain requirements for th