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    • 9. 发明专利
    • Vibration suppressing method and vibration suppressing device for use in machine tool
    • 用于机床工具的振动抑制方法和振动抑制装置
    • JP2012081562A
    • 2012-04-26
    • JP2010230685
    • 2010-10-13
    • Okuma Corpオークマ株式会社
    • UENO HIROSHI
    • B23Q15/12B23Q17/12G05B19/18
    • G05B19/404B23Q15/007G05B2219/42344Y10T409/30084Y10T409/304312Y10T409/306832Y10T409/307224
    • PROBLEM TO BE SOLVED: To provide a method and device for suppressing vibration capable of selecting an optimum stable rotation speed without changing a dynamic characteristic from among calculated stable rotation speeds, and surely suppressing chatter vibrations.SOLUTION: The highest rotation speed of a main shaft 3 and a switching rotation speed at which a dynamic characteristic of the main shaft 3 system changes are stored. A stable rotation speed, out of a plurality of calculated stable rotation speeds, not more than the highest rotation speed and without crossing the switching rotation speed in changing the rotation speed is selected as an optimum rotation speed, and the rotation speed of the main shaft 3 is changed to the optimum rotation speed. Accordingly, a situation where a rotation speed incapable of being output is selected or the rotation speed of the main shaft is changed to a rotation speed incapable of suppressing "chatter vibrations" because the dynamic characteristic of the main shaft 3 system changes can be prevented, and "chatter vibrations" can be surely suppressed relative to a conventional one.
    • 要解决的问题:提供一种用于抑制振动的方法和装置,其能够从计算的稳定转速中改变动态特性,并且可靠地抑制颤动振动。 解决方案:主轴3的最高转速和主轴3系统的动态特性变化的切换转速被存储。 选择在多个计算的稳定旋转速度中不超过最高转速并且在改变转速时不超过切换转速的稳定转速作为最佳转速,并且主轴的转速 3变为最佳转速。 因此,能够防止由于主轴3的动力特性变化而导致不能输出的转速或主轴的转速变为不能抑制“振动振动”的转速的情况, 并且可以相对于传统振动可以确定地抑制“振动振动”。 版权所有(C)2012,JPO&INPIT