Patent ID: 6350181
Filing Date: 2002-02-26
Classification: B23B,B23F,B23P

Abstract:
A device for the fine machining of functional surfaces on pre-machined and hardened transmission gear workpieces, comprising:a) a work piece spindle (3), in which a driver (9) is mounted with a first carrier surface (19, 22), b) a tailstock (16), and c) a counter-holder (10, 24) with a second carrier surface (18, 25) rotatably mounted in the tailstock with respect to an axis of the device, d) wherein the tailstock is movable with respect to the workpiece spindle and a gear (6) is clamped between both of the carrier surfaces and is centered at the driver and/or at the counter-holder, and e) wherein the counter-holder has a through-boring (29, 35) running coaxial to said axis, through which an inner machining tool (11) is guided for the machining of a boring (8) of the gear, as well as a grinding spindle for mounting a grinding worm (5) with which the gearing (7) is machined simultaneously.