Method and apparatus for suppressing vibration

摘要

A vibration suppressing method and a vibration suppressing device are disclosed. After detection of chatter vibration using at least one vibration detecting device, a stable rotation speed for suppressing the chatter vibration is calculated using a stable rotation speed calculating device. A determination device then compares a detection value detected by the vibration detecting device, a predetermined setting value, and/or a current value that is calculated based on at least one of the detection value and the setting value, to a predetermined determination reference value that is previously set. Thereafter, the determination device determines whether or not the stable rotation speed is adopted in accordance with the comparison result, and changes rotation speed of the rotary shaft to the stable rotation speed if the stable rotation speed is adopted.

主权项

1. A method for suppressing chatter vibration of a machine tool provided with a rotary shaft for rotating a tool or a workpiece during the rotation of the rotary shaft, the method comprising the steps of:
a first step of detecting chatter vibration using at least one vibration detecting device; a second step of calculating a stable rotation speed for suppressing the chatter vibration using a stable rotation speed calculating device after detection of the chatter vibration; and a third step of comparing a detection value detected by the vibration detecting device, a predetermined setting value, and/or a current value that is calculated based on at least one of the detection value and the setting value, to a predetermined determination reference value that is previously set, determining whether or not the stable rotation speed is adopted in accordance with the comparison result, and changing rotation speed of the rotary shaft to the stable rotation speed if the stable rotation speed is adopted, the third step being executed by a determination device.