Patent ID: 9238297
Filing Date: 2016-01-19
CPC Classification: B24B

Claim Text:
1. An actual grinding depth measurement method of measuring an actual grinding depth achieved by a machining application portion of a tool while a cylindrical machined portion of a workpiece is machined using a machine tool that supports the workpiece such that the workpiece is rotatable about a shaft center of the cylindrical machined portion, and that feeds the tool in a radial direction of the cylindrical machined portion, comprising: a diameter measurement start step of measuring a start diameter (D a diameter measurement end step of measuring an end diameter (D an actual grinding depth computing step of computing an actual grinding depth (U) at the time when the measurement start point is machined, according to an equation, U=|D the diameter measurement end step is executed when the workpiece is rotated 180° from when the diameter measurement start step ends.