High-speed machining controller

Details High-speed machining controller High-speed machining controller

1986-05-29

1987-11-24

Dobeck, Benjamin

Electricity: motive power systems

Positional servo systems

Program- or pattern-controlled systems

318 39, 364474, G05B 1924

Patent

active

047091983

ABSTRACT:
A high speed machining controller comprises an acoustic emission sensor which is installed in or near a machine for machining a work piece in a high speed and which detects acoustic emission generated during machining a work piece; a signal processing means which is composed of a band-pass filter for passing an element of a frequency band corresponding to the acoustic emission by inputting a signal outputted from the acoustic emission sensor, a rectification circuit for rectifying a signal outputted from said band-pass filter, a peak detection circuit for detecting peak values of the signal outputted from the rectification circuit, and a smoothing circuit for smoothing output signals of said peak detection circuit and for outputting a signal corresponding to the amplitude of the acoustic emission for the purpose of processing the output signal of the acoustic emission sensor to detect its amplitude; a cutting condition discrimination means for judging the cutting condition of a work piece by comparing a detected amplitude of the acoustic emission with a predetermined discrimination value for discriminating the cutting condition of said work piece; and a control means to instruct and control the machining condition including at least the feed speed of a machine tool on the basis of the cutting condition of the work piece.

REFERENCES:
patent: 3095532 (1963-06-01), Floyd
patent: 3671840 (1972-06-01), Meyer et al.
patent: 3681661 (1972-08-01), Koegel
patent: 3809488 (1974-05-01), Sonderegger
patent: 4496883 (1985-01-01), Eastcott et al.
patent: 4626754 (1986-12-01), Habermann et al.

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