Electricity: motive power systems – Positional servo systems – Program- or pattern-controlled systems
Patent
1999-03-03
2000-08-29
Ip, Paul
Electricity: motive power systems
Positional servo systems
Program- or pattern-controlled systems
318569, 318572, 36442411, 36447415, 470 96, G05B 1918
Patent
active
061113824
ABSTRACT:
A control device which controls a tapping device provided with a feed motor for feeding a spindle in an axial direction thereof and a spindle motor for rotating the spindle about its axis. The spindle installs a composite tool having a boring section for forming a bore in a workpiece and a subsequent tapping section for forming a female thread at the bore. An asynchronous control is initially performed for independently controlling rotation of the feed motor and the spindle motor for boring. If the tapping section reaches the workpiece, a control is switched to a synchronous control for controlling the motors in synchronism with each other.
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Brother Kogyo Kabushiki Kaisha
Ip Paul
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