Electricity: motive power systems – Positional servo systems – Digital or numerical systems
Patent
1990-05-22
1992-09-01
Ro, Bentsu
Electricity: motive power systems
Positional servo systems
Digital or numerical systems
318569, G05B 1918
Patent
active
051442140
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.
REFERENCES:
patent: 4641069 (1987-02-01), Fujioka et al.
patent: 4983899 (1991-01-01), Komatsu et al.
patent: 5019763 (1991-05-01), Komatsu
Komatsu Toshiteru
Miura Kunio
Kabushiki Kaisha Okuma Tekkosho
Ro Bentsu
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