Numerically-controlled lathe, numerically-controlled device therefor and processing procedure thereby
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United States of America Patent
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-
Jul 7, 1992
Grant Date -
N/A
app pub date -
Dec 18, 1990
filing date -
Dec 18, 1989
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The present invention relates to a numerically-controlled lathe, a numerically-controlled device therefore and a procedure for processing a workpiece thereby. An object of the invention is to provide a numerically-controlled lathe adapted to designate one of two spindles and three tool rests and a procedure for processing a workpiece thereby. The numerically-controlled lathe of the invention includes a first headstock 2, a second headstock 5, which is positioned so as be facing relationship with the first headstock and drivably controlled in at least a single direction, a first tool rest 11 drivably controlled in at least two directions which intersect each other for processing a workpiece, a second tool rest 20 drivably controlled in at least two directions mainly for processing a workpiece mounted on the second spindle 23, and a third tool rest 30 drivably controlled in at least two directions and having two axes which are intersecting each other for processing the workpiece in association with the first tool rest 11 or second tool rest 20, by aiding a processing operation executed by the first spindle 22 or the second spindle 23.
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