SPINDLE ORIENTATION CONTROLLER

Title:

SPINDLE ORIENTATION CONTROLLER

Document Type and Number:

WIPO Patent Application WO/1989/006394

Kind Code:

A1

Abstract:

A spindle orientation controller couples a spindle motor (2) via coupling means (5) with a main spindle (4) which produces a signal (LS) indicating its approximate stop position and a signal (MS) indicating its definite stop position. This controller is adapted to stop the spindle in position according to a speed instruction that varies depending upon the speed of the spindle motor (2). Speed pulses for detecting the rotating speed of the motor are used as position pulses, and a speed instruction value is decreased by the amount of feedback pulses. When the speed instruction value of the main spindle decreases to a predetermined level, the instruction value is clamped at that level. When the signal (LS) from the main spindle is detected in the clamped state, the signal (MS) from the main spindle is used as a speed instruction value. This makes it possible to stop the main spindle in position quickly.

More Like This:

JPH01174283

MAIN SPINDLE ORIENTATION CONTROL DEVICE

Inventors:

KONO SHINICHI (JP)
TAKAHASHI HIRONOBU (JP)

Application Number:

PCT/JP1988/001341

Publication Date:

July 13, 1989

Filing Date:

December 28, 1988

Export Citation:

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Assignee:

FANUC LTD (JP)

International Classes:

H02P3/06; G05B19/19; G05B19/23; G05B19/39; G05D3/00; (IPC1-7): G05D3/12

Foreign References:

JPH05775753A
JPH0619209A	1994-01-28

Other References: