CYLINDRICAL GRINDING METHOD AND CYLINDRICAL GRINDING MACHINE

摘要

In a cylindrical grinding method, rough grinding is performed until a diameter of a workpiece reaches a rough-grinding setting value, and then, first finish grinding is performed until the diameter of the workpiece reaches a first finish setting value while measuring a shape deviation amount of an outer peripheral surface of the workpiece from a perfect round shape. The rough-grinding setting value in the next-time rough grinding step is changed based on a necessary time of the first finish grinding step to time at which the shape deviation amount reaches a first threshold or smaller in the first finish grinding step, and based on a total required time for the first finish grinding step.

主权项

1. A cylindrical grinding method for grinding a cylindrical workpiece with a grinding wheel, the cylindrical grinding method comprising:
performing rough grinding until a diameter of the workpiece reaches a rough-grinding setting value; and performing finish grinding subsequently to the rough grinding until the diameter of the workpiece reaches a finish setting value while measuring a shape deviation amount of the workpiece from a perfect round shape in one rotation of an outer peripheral surface of the workpiece, wherein the rough-grinding setting value in the rough grinding at a next time is changed based on a necessary time from start time of the finish grinding to time at which the shape deviation amount reaches a threshold or smaller in the finish grinding, and based on a total required time for the finish grinding.