GEAR PROCESSING METHOD AND GEAR PROCESSING DEVICE

To provide a processing method and a processing device which can improve workpiece processing accuracy even when a shape of workpiece varies.SOLUTION: A gear processing method includes: a measurement step of measuring at least one of a contour in a tooth profile direction of a tooth surface, a contour in a tooth muscle direction of the tooth surface and a pitch of a tooth as a shape parameter of a processed gear in one or more places of the processed gear; and a processing condition determination step of determining a processing condition including at least one of cutting speed and processing time of a tool during processing the processed gear, a contact angle of the processed gear and the tool, and rotation speed during processing of the processed gear, based on the measured shape parameter.SELECTED DRAWING: Figure 6 【課題】ワークの形状にばらつきがある場合でも、ワークの加工精度を向上することができる、加工方法及び加工装置を提供する。【解決手段】歯車加工方法は、被加工歯車の形状パラメータとして、歯面の歯形方向の輪郭、歯面の歯筋方向の輪郭、及び歯のピッチの少なくとも１つを、当該被加工歯車の一箇所以上において計測する、計測ステップと、計測された前記形状パラメータに基づいて、前記被加工歯車を加工する工具の切り込み速度、加工時間、前記被加工歯車と前記工具との接触角、及び前記被加工歯車の加工時の回転速度の少なくとも１つを含む加工条件を決定する、加工条件決定ステップと、を備える。【選択図】図６