G - Physics – 05 – B
Patent
G - Physics
05
B
G05B 11/01 (2006.01) G05B 13/02 (2006.01) G05B 15/02 (2006.01) G05B 19/18 (2006.01) G05B 19/402 (2006.01) G05B 19/404 (2006.01) G05B 19/416 (2006.01) G05D 15/01 (2006.01) G05F 1/66 (2006.01)
Patent
CA 2271563
A computer-numerically controlled material removal machine, such as a milling machine, lathe, grinding machine, shaping machine, or the like, has drive units for moving the workpiece and the cutting tool to cause the tool to remove material from the workpiece and a computer-numerical control unit for controlling the drive units so as to optimize material removal rates. In some embodiments, the control unit senses electrical energy consumption rate at a cutting tool drive motor and vanes either or both of cutting tool speed and workpiece feed rate to maintain the energy consumption rate substantially equal to a preset reference level. In other cases, the control unit derives a signal representing force exerted between the cutting tool and the workpiece, whether by sensing power or by using a dynamometer to measure force between the workpiece and the cutting tool, and controls a plurlity of variables, conveniently by means of a fuzzy logic controller.
Liang Ming
Yeap Tet Hin
Adams Patent & Trademark Agency
Liang Ming
University Of Ottawa
Yeap Tet Hin
LandOfFree
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