Method and machine tool for gear finishing.

摘要

The gear (1) to be finished is rotated in mesh with the honing tool (3) which is in the form of an internal gear with abrasive teeth which remove metal from the workpiece gear during rotation. The spindle drives of the workpiece gear and the honing tool are electronically coupled. Before machining takes place, the honing tool is rotated in mesh with the workpiece gear, which is allowed to rotate freely under no load. The deviations from true angular displacement of the workpiece gear are registered by the control system. The electronic coupling is then engaged and during machining uses the stored information on the gear errors to modify the relative speeds in a way that varies the metal removal rate and corrects the overall pitch error of the gear.