FEED CONTROL DEVICE IN TURNING AT CNC LATHES Russian patent published in 2012 - IPC B23Q15/13 

FIELD: process engineering.

SUBSTANCE: proposed device comprises dynamometer, computer and fuzzy controller. To up precision, said device comprises phasing unit, out-phasing unit, membership function generation unit and cutting speed transducer, to allow computing total perturbation actions. Note here that fuzzy controller is complemented with units for hardware integration connected in series. Dynamometer output is connected to first input of phasing unit. Speed transducer is connected to phasing unit second input. Phasing unit third input is connected to computer. Computer first and second inputs are connected to outputs of dynamometer and speed transducer while phasing unit fourth input is connected to membership function generation unit output. Phasing unit output is connected to input of hardware integration unit with its output connected to composition unit input. Output of the latter is connected to accumulation unit input with its output connected to out-phasing unit input. Note here that fuzzy controller output signal represents out-phasing unit output signal connected to input of actuators.

EFFECT: higher precision.

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