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本文认为合理布置传动力的方向、大小和作用点，可使主轴端部得到极大以至无穷大的Ｙ向刚度，并对现有机床进行了分析和计算。
In this paper, it is considered that the direction, size and point of application of the driving force can be arranged reasonably so that the Y-direction stiffness of the spindle can be greatly and even infinity, and the existing machine tools are analyzed and calculated.