Gear cutting – milling – or planing – Milling – Cutter spindle or spindle support
Patent
1991-08-12
1993-03-16
Briggs, William
Gear cutting, milling, or planing
Milling
Cutter spindle or spindle support
5116577, 310 905, 384228, 384248, B23C 900, F16C23000
Patent
active
051939533
ABSTRACT:
A high-speed drilling or milling spindle (10) comprises a stator (11) that can be attached to a machine tool (12), a rotor (13), and a rotary drive (40, 41) acting between stator (11) and rotor (13). The rotor (13) has a receptacle (15) for a rotating, metal-cutting tool (16). The rotor (13) is supported with respect to the stator (11) by means of at least a first and a second rolling bearing (22, 32) spaced axially away therefrom. The rotor (13) is supported on thrust and radial bearings. The rolling bearings (22, 32) have a very small thrust angle (24, 34). They essentially act as radial bearings. A third bearing is provided as the thrust bearing in the form of a magnetic bearing (50). The magnetic bearing (50) is adjustable in terms of its axial bearing force as a function of the axial forces (F.sub.a) acting on the tool (16).
REFERENCES:
patent: 3731984 (1973-05-01), Habermann
patent: 4080012 (1978-03-01), Boden et al.
patent: 4180946 (1980-01-01), Heijkenskjold et al.
patent: 4514123 (1985-04-01), Johnstone et al.
patent: 4879500 (1989-11-01), Kanemitsu
patent: 4928561 (1990-05-01), Fouche
patent: 4956945 (1990-09-01), Ooshima
patent: 5027280 (1991-06-01), Ando
"High Speed Electro spindle with Magnetic Bearing", Bulletin of T.M.I. Forest, publ. Nov. 1979.
Pamphlet of the applicant "Belt-driven Spindles".
Briggs William
Fortuna-Werke Maschinenfabrik GmbH
Hackler Walter A.
LandOfFree
High-speed drilling or milling spindle does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with High-speed drilling or milling spindle, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and High-speed drilling or milling spindle will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-348593