METHOD AND MACHINE TOOL FOR FINISHING TOOTHINGS

摘要

A method of finishing teeth including tooth flanks of a toothed wheel with a machine tool includes the steps of engaging the toothed wheel with an abrasive working tool of the machine tool and rotating for at least one revolution the toothed wheel about an axis of rotation of the toothed wheel whereby the abrasive working tool is entrained with the toothed wheel load-free but in contact with the toothed flanks of the toothed wheel. During this one revolution, rotational deviations from an ideal rotational meshing between the toothed wheel and the abrasive working tool resulting from tooth inaccuracies are measured and saved. The toothed wheel is then finished with the abrasive working tool whereby the rotational movements about the axis of rotation of the toothed wheel and the rotational movement about the axis of rotation of the abrasive working tool are electronically coupled and the rotational deviations are added with reversed sign at each angular position for providing the nominal position value for the movement about the axis of rotation to be controlled. In an alternative embodiment it is also possible to drive the working tool and entrain without load the toothed wheel.