Electricity: motive power systems – Positional servo systems – Program- or pattern-controlled systems
Patent
1990-12-04
1992-05-26
Ip, Paul
Electricity: motive power systems
Positional servo systems
Program- or pattern-controlled systems
318570, 318571, 318573, 36447403, G05B 1942
Patent
active
051171694
ABSTRACT:
A numerical control (NC) device 10 for a machine tool 1 provided with a measurement probe 2b effects measurements of a work 4 on the machine table 5 after a working process. A measurement program, generated by the NC device by modifying a working program, controls the relative movement of the probe 2b with respect to the workpiece 4 such that the probe 2b moves along the contour of the worked portion of the workpiece 4 with a displacement from the neutral position thereof, wherein the displacement of the probe is sampled at a predetermined sampling period. A working error calculation program 17 calculates the working error from the sampled displacements. If the working error is judged correctable, a outside tolerance range and correction re-working is effected so as to reduce the working error. The measurement/re-working cycles are repeated until the working error is within tolerance.
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Lazzaretti, Pioneering in Technology . . . Building for the Future, "Computer Aided Inspection System", 17th Numberical Control Society Annual Meeting and Technical Conference, May 1982.
Kakino Yoshiaki
Nakamura Tetsuo
Takeshita Torao
Tokumo Shigeaki
Ip Paul
Kakino Yoshiaki
Mitsubishi Denki & Kabushiki Kaisha
Mitutoyo Corporation
Yasuda Kogyo Kabushiki Kaisha
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