Gear cutting – milling – or planing – Gear cutting – Gear tooth shape generating
Reexamination Certificate
2007-02-20
2007-02-20
Howell, Daniel W. (Department: 3722)
Gear cutting, milling, or planing
Gear cutting
Gear tooth shape generating
C409S027000, C409S030000, C451S047000, C451S219000
Reexamination Certificate
active
10722705
ABSTRACT:
On a CNC machine for machining spiral bevel gears the axis (T) of a tool spindle forms a fixed, non-adjustable tilt angle (κ) against an orientation axis (O) for all bevel gears to be machined. The tool spindle is adapted to be continuously swiveled about the orientation axis (O) by a swivel drum. A work gear spindle is adjustable in its angular position about a pivot axis (P) for a bevel gear to be machined on the machine, but it does not change its angular position during the machining operation. The tilt angle (κ) and the angular position are selected such that a predetermined rolling motion between the work gear and the tool can be achieved. Swiveling of the tool spindle axis (T) about the orientation axis (O) leads to a higher machine stiffness than does a machine root angle pivoting of the work gear spindle axis (W) about the pivot axis (P) applied in the prior art, and therefore, it results in more precise tooth flanks on the machined spiral bevel gears.
REFERENCES:
patent: 3212403 (1965-10-01), Meyrick
patent: 3464312 (1969-09-01), Hanzawa et al.
patent: 3492915 (1970-02-01), Denisov et al.
patent: 4514118 (1985-04-01), Kotthaus
patent: 4930950 (1990-06-01), Stadtfeld
patent: 255 296 (1988-02-01), None
patent: 196 46 189 (1999-08-01), None
patent: 19829880 (1999-08-01), None
patent: 0 374 139 (1997-01-01), None
patent: 0 784 525 (1997-07-01), None
patent: 02237718 (1990-09-01), None
patent: 04343613 (1992-11-01), None
patent: 11262816 (1999-09-01), None
patent: A-946 830 (1982-07-01), None
patent: WO 02/066193 (2002-08-01), None
M.G. Segal, “Ways of Numerical Program Control Utilization in Machine Tools for Machining Round Teeth of Conical and Hypoid Transmissions”, (Izvestiya vuzov. Mashinostroenie, 1985, Nr. 6, S. 120-124.
Howell Daniel W.
Klingelnberg GmbH
McCormick Paulding & Huber LLP
LandOfFree
Machine and method with 7 axes for CNC-controlled machining,... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Machine and method with 7 axes for CNC-controlled machining,..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Machine and method with 7 axes for CNC-controlled machining,... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3812327