Apparatus and method for measuring tooth surface deviation, apparatus and method for forming grinding tool, and gear meshing method for gear grinding apparatus

摘要

A device for measuring tooth surface deviation includes a contact detector that measures the deviation at the tooth surface of a dresser with respect to a grinding tooth surface formed on a helical grinding tooth of a grinding tool when the grinding tool and a dresser toothed wheel are rotated synchronously in a state in which the grinding tooth surface and the dresser tooth surface of the dresser toothed wheel can be brought into contact, and detects contact between the grinding tooth surface and the dresser tooth surface; and a controller that changes the speed of rotation of the dresser toothed wheel in such a way that the detection result of the contact detector comes within the range of contact determination data, and also measures the amount by which the grinding tool and the dresser toothed wheel have been changed in one revolution of the dresser toothed wheel.