Patent ID: 9180536
Filing Date: 2015-11-10
Classification: B23F

Abstract:
1. A device for machining a bevel gear comprising: a work piece spindle adapted to secure a bevel gear work piece, a tool spindle, a grinding wheel having an abrasive surface rotatably attached to the tool spindle, and a plurality of drives operatively controlled by a CNC controller for CNC-controlled machining of the bevel gear work piece, wherein: the grinding wheel is configured to rotate about a rotational axis of the tool spindle, engage the bevel gear work piece and remove material therefrom; the device is configured to superimpose said rotation with an eccentric movement, such that the grinding wheel engages the bevel gear work piece only at n contact regions along a full circle of the abrasive surface in a first machining phase, and the device is configured to adjust said eccentric movement, such that after said first machining phase, the grinding wheel engages the bevel gear work piece in a further machining phase at only m contact regions along the full circle of the abrasive surface that do not overlap with the n contact regions.