Process and device for the fine machining of the toothed gears of a gearbox
AssigneeReishauer AG
InventorWalter Wirz
Life of this patent
Estimating the term…
Abstract
The process describes how transmission gears (6) can be manufactured in a highly economical and highly precise manner. In one single mounting, the complete hard fine-machining on all of the most important functional surfaces of the workpiece is conducted simultaneously. This multi-process is made possible through the combined use of a continuous generating grinding process for the machining of gearing, a known method for the machining of the boring and possibly of a frontal surface, and the fixing of workpieces (6) on form elements such as chamfers or plane surfaces by means of centering elements (9, 10) which are designed in such a way that they do not block the free access of the individual tools (5, 11, 28) to the surfaces (7, 8, 27) to be machined.
Claims7
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.
Dependencies are inferred from the claim text.