Patent ID: 9511432
Filing Date: 2016-12-06
CPC Classification: B23F,B24B

Claim Text:
1. A gear machining apparatus configured to shape a gear by machining a workpiece with a grinding wheel, the gear machining apparatus comprising: a threaded grinding wheel configured to shape a gear by machining a workpiece; and a disc-shaped dresser configured to shape the threaded grinding wheel while rotating with the threaded grinding wheel in a meshed state, a pressure angle of the dresser being designed to be shifted so that a position, at which relative movement in a tooth profile direction of the gear does not occur between a surface of the threaded grinding wheel and a gear to be machined, is positioned outside of a tooth profile evaluation range, when the shaped threaded grinding wheel shapes the gear, and the tooth profile evaluation range being set as a section of a tooth surface of the machined gear that functions as a tooth surface of the gear when the gear is used.