Electricity: motive power systems – Positional servo systems – Program- or pattern-controlled systems
Patent
1991-02-21
1995-12-19
Martin, David S.
Electricity: motive power systems
Positional servo systems
Program- or pattern-controlled systems
31856816, 36447415, 36447417, G05B 1918
Patent
active
054771188
ABSTRACT:
A numerical controller for a grinding machine, wherein one of plural reference sizing points is selected according to the contents of a numerical control program. Measured analog data indicating the diameter of a workpiece is received continuously to determine if the size of the machined workpiece coincides with the selected reference sizing point. Upon the coincidence of the size of the machined workpiece with the reference sizing point, a sizing signal is provided, and then machining control is changed in response to the sizing signal. An analog signal provided by a measuring device is sampled at a predetermined interval in a predetermined time. The analog signal is tested to see if the analog signal is in a predetermined range, which is decided based upon the temperature variation or vibrations of the grinding machine. And the result of the test is displayed to facilitate checking the output characteristics of the measuring device. The analog signal is compared with a predetermined reference value, and then the result of the comparison is displayed together with a predetermined reference value.
REFERENCES:
patent: 4195250 (1980-03-01), Yamamota
patent: 4293913 (1981-10-01), Nishimura et al.
patent: 4630214 (1986-12-01), Barney et al.
patent: 4791575 (1988-12-01), Watts, Jr. et al.
patent: 4815000 (1989-03-01), Yoneda et al.
patent: 4887221 (1989-12-01), Davis et al.
patent: 4905417 (1990-03-01), Oda et al.
patent: 5015814 (1991-05-01), Morishita
Arimoto Naoki
Banno Chisato
Sakakibara Yasuji
Yamamoto Fumio
Yoneda Takao
Martin David S.
Toyoda Koki Kabushiki Kaisha
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