Patent ID: 8216025

Claim:
A profile grinding machine comprising: a base; a work unit disposed on one side on the base and including a work table for gripping a work; and a stone unit disposed on another side on the base and including a stone rotating mechanism for holding and rotating a grinding stone about axis thereof, wherein the work unit includes first, second and third moving devices for supporting and moving the work table in an X-direction and a Y-direction intersecting with each other in a horizontal plane, and in a Z-direction normal to the horizontal plane, respectively; the stone unit includes a turning mechanism capable of turning the grinding stone about a vertical axis substantially coinciding with a leading end portion of the grinding stone, and the turning mechanism comprising a rotatable table having a rotational axis; and a numerical controller which controls the first, second and third moving devices in the work unit and the rotatable table in the stone unit, wherein the numerical controller controls the work unit such that the work is moved in the X-direction and the Y-direction in synchronism with movement of the work in the Z-direction, and the numerical controller controls the stone unit to rotate the rotating table at a predetermined angle on the rotational axis.