机床主轴支承距的合理选择,是获得主轴部件最大静刚度的重要条件之一。 为要获得主轴部件最大静刚度,要从力学的受力和变形的角度出发,确定主轴受力后的轴端位移。使主轴轴端位移在受力时达到最小值的主轴主承距就是最佳值。目前,求此最佳位大致有两种方法:一是根据经验值推荐 Reasonable choice of machine tool spindle bearing distance is one of the important conditions for obtaining the maximum static stiffness of the spindle part. In order to obtain the maximum static stiffness of the spindle components, from the mechanics of the force and deformation point of view, to determine the spindle axial force displacement. Spindle shaft end displacement in the force to reach the minimum value of the main bearing the main bearing is the best value. At present, there are basically two ways to find the best bit: one is based on experience recommended