Electricity: motive power systems – Positional servo systems – Program- or pattern-controlled systems
Patent
1999-02-12
2000-04-25
Salata, Jonathan
Electricity: motive power systems
Positional servo systems
Program- or pattern-controlled systems
36447431, G05B 1925
Patent
active
060548304
ABSTRACT:
A method and system for controlling pulse-driven actuators on multidimensional coordinates includes a cutting tool connected to the actuators of a machine tool. The cutting tool is controlled with a specified path and a specified velocity by controlling the output pulses of a multiplier. Data on the coordinates of a plurality of points including points A and B on the specified path and on the specified velocity F is received along with a command indicating an interpolation type. A linear interpolation is performed by a straight line between the point A and the point B, and the interpolated straight line is divided into minute lengths .DELTA.L and a minute length .DELTA.La correspondingly to a minute time .DELTA.T. .DELTA.T is changed by sending either a first control signal for keeping the specified velocity F corresponding to the minute length .DELTA.L or a second control signal for keeping the specified velocity F corresponding to the minute length .DELTA.La to a pulse oscillator for supplying pulses to the multiplier. If the selection of the control signals is appropriate, the cutting tool can keep the specified velocity F when it moves on either portion of .DELTA.L or .DELTA.La.
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Kamiya Masanori
Tsujikado Seiji
International Business Machines - Corporation
Percello, Esq. Louis J.
Salata Jonathan
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