びびり振動発生限界の検出 (第2報)

ハードウェアシステムの開発

抄録

A hardware system using a microcomputer, developed for detecting onsets of chatter vibrations in real time and to stop machine tools when chatter occurs, is described, together with the experimental results of the system. Hence the hardware described in this paper is obtained at a low price, the machine tool can be protected from chatter vibrations by a little investment. The detection of the chatter vibration is performed by directly calculating the intervals of the peaks of sound signals in cutting operations, so that the microcomputer, which is not so fast device, can be used in this system. The results of the tests reveal that this system is useful for realtime detection of chatter vibrations and can be applied to the simple control of machine tools in a wide range of cutting conditions.