| 摘要 |
Provided are an internal gear machining method and an internal gear machining device, by which a precise tooth profile grinding can be realized by correcting a tooth profile error when grinding of a tooth profile of an internal gear is performed using a barrel-shaped threaded grinding wheel. An NC device (31) which functions as a tooth profile error correction means in an internal gear grinding machine (internal gear machining device) reduces a measured pressure angle error (”fa L , ”fa R ) of a workpiece (W) (internal gear) at a tooth face by correcting the radial position, the lateral position of the grinding wheel, the turning angle of the grinding wheel, and the helical motion; reduces a measured error (”L) in the direction of a tooth trace of the workpiece (W) at a tooth face by correcting the helical motion; and reduces a measured tooth thickness error (”th) of the workpiece (W) at a tooth face by correcting the radial position, the lateral position of the grinding wheel, and the helical motion. |
