Plane-surface air-gap grinding machine

The utility model discloses a plane-surface air-gap grinding machine which comprises emery wheels, a work bench and a part conveying device. The utility model is characterized in that the emery wheels are a coarse grinding emery wheel and a precision grinding emery wheel; the work bench is a magnetic bench top; the part conveying device comprises a driving pulley, a driven pulley and a conveying belt arranged between the emery wheels and the work bench; a cross shaft emery wheel is arranged behind the precision grinding emery wheel along the conveying direction of the conveying belt, and is the emery wheel which can move along the axial direction. The utility model has the characteristics of high accuracy, simultaneous air gap opening, continuous processing and high production efficiency.