Centerless grinding machine is a type of grinding machine that does not require the use of axial positioning of the workpiece for grinding. It is mainly composed of three mechanisms: grinding wheel, adjustment wheel, and workpiece support. The grinding wheel actually serves as the grinding work, the adjustment wheel controls the rotation of the workpiece, and controls the feed speed of the workpiece. As for the workpiece support during grinding, these three types of parts can be matched in several ways.