Numerical control system for moving work or cutter in synchronism with the rotation of a spindle
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United States of America Patent
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Sep 1, 1992
Grant Date -
N/A
app pub date -
May 22, 1990
filing date -
May 24, 1989
priority date (Note) -
Expired
status (Latency Note)
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Abstract
In a numerical control system which controls the rotational angle of a spindle in a numerically controlled machine and tool in synchronism with the position of a feed axis based on a data table storing information for positional commands for the feed axis in correspondence with the rotational angle of the spindle, a universal purpose turning operation is effected at a higher efficiency by generating a marker pulse when a value set by counting the pulses in A- and B-phases from a spindle pulse generator has reached a pre-set value, and by controlling synchronization during synchronized operation, based on the marker pulse instead of the marker phase pulse from the spindle pulse generator.
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