通过建立一个新的旋转主轴动态铣削模型 ,分析了旋转主轴的陀螺应对铣削系统稳定性的影响 .研究结果表明 :虽然旋转主轴的陀螺的效应不会改变铣削系统的不稳定区 ,但会明显增加其特征值的实部 (达 30 % ) ,同时对系统的响应频率影响很大 .换句话说 .它将使得对稳定性的估计值偏离保守 Through the establishment of a new rotating spindle dynamic milling model, the influence of the rotating spindle gyro on the stability of the milling system is analyzed.The results show that although the gyro effect of the rotating spindle does not change the instability of the milling system, it increases significantly The real part of its eigenvalues ​​(up to 30%) has a great influence on the response frequency of the system, in other words it will deviate from the conservative estimate of the stability