Numerical control system

Details Numerical control system Numerical control system

1986-12-01

1988-12-27

Ro, Bentsu

Electricity: motive power systems

Positional servo systems

Program- or pattern-controlled systems

318593, G58

Patent

active

047943114

ABSTRACT:
In a numerical control system for a machine tool using a general-purpose motor (11) in place of at least one of servo motors, a current position of a spindle (10) driven by the general-purpose motor (11) is detected (14, 9) and is compared with a position designated by a numerical control program. When the current position approaches the position designated by the numerical control program, brake signals (MBR, BR) are generated to brake the general-purpose motor (11) or the like, and a rotation signal (MCW, MCCW) of the general-purpose motor (11) is disabled, thereby stopping the general-purpose motor (11) so as to cause the spindle (10) to stop at the position designated by the numerical control program.

REFERENCES:
patent: 3430036 (1969-02-01), Patrick
patent: 3835360 (1974-09-01), Kiwiet
patent: 3995206 (1976-11-01), Aronstein
patent: 4011437 (1977-03-01), Hohn
patent: 4099113 (1978-07-01), Hayashi
patent: 4118660 (1978-10-01), Ohtsuki
patent: 4478009 (1984-10-01), Rukavina
patent: 4513234 (1985-04-01), Nozawa

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