Internal grinding machine grinding is divided into three kinds, the general internal grinding machine requirements are surface accuracy, smooth surface and workpiece diameter error.

1: Center type internal grinding, grinding workpiece around the spindle spindle center line rotation, ordinary internal grinding machine and external grinding machine are this form, suitable for grinding sleeve, gear, flange and other parts of the inner hole, grinding workpiece with chuck clip on the headbox.

Two: planetary internal grinding, grinding, the workpiece is fixed, the grinding wheel in addition to high-speed rotation around its own spindle line, but also around the center of the grinding hole at a lower speed to achieve circular supply, as well as the grinding wheel feed longitudinal and periodic transverse.

Three: centerless internal grinding: On the centerless internal grinding machine, the workpiece is supported on the support wheel and the press wheel with its finished outer circle, and is driven by the guide wheel to rotate it, so that the grinding method is suitable for grinding the inner hole of the thin-walled ring parts.