Boots – shoes – and leggings
Patent
1988-11-01
1991-06-25
MacDonald, Allen R.
Boots, shoes, and leggings
310 905, 511345R, B24B 500
Patent
active
050272802
ABSTRACT:
A machining apparatus having a main spindle supported by magnetic bearings which controls machining conditions by controlling electric current values flowing in electromagnets according to predetermined conditions, thereby obtaining an optimum machining condition and thus improving accuracy and machining efficiency. The machining apparatus comprises a spindle having a tool at its one end, electromagnets for radially and axially supporting the spindle by magnetic force without contact to the spindle, position detecting means for detecting radial and axial positions of the spindle, control means responsive to outputs from the position detecting means for controlling current flowing in the electromagnets, current measuring means for measuring current values flowing in at least one of the electromagnets, and machining control means for controlling machining conditions by controlling current values at the electromagnets according to the measured current values.
REFERENCES:
patent: 4072370 (1978-02-01), Wesson
patent: 4080012 (1978-03-01), Boden
patent: 4180946 (1980-01-01), Heijkenskjold
Patent Abstracts of Japan, vol. 7, No. 179 (M-234), [1324] Aug. 9, 1983, Yamazaki Tekkosho K.K.
Ando Shigenori
Iijima Ryuji
Adams Bruce L.
MacDonald Allen R.
Seiko Seiki Kabushiki Kaisha
Wilks Van C.
LandOfFree
Machining apparatus having a main spindle supported by magnetic does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Machining apparatus having a main spindle supported by magnetic , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Machining apparatus having a main spindle supported by magnetic will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1045230