主轴特性分为四类,即回转精度、柔度和负载能力、热稳定性以及振动或结构运动。每种特性都会直接或间接地影响主轴的有效精度,因而在鉴定主轴特性时必须给以测量。 回转精度是指主轴回转时主轴中心线的偏移量,它由重复性和非重复性的两种运动组成。重复性误差通常是由轴颈的几 Spindle characteristics are divided into four categories, namely slewing accuracy, flexibility and load capacity, thermal stability and vibration or structural movement. Each characteristic directly or indirectly affects the effective accuracy of the spindle and therefore must be measured when characterizing the spindle. Slewing accuracy refers to the offset of the spindle centerline when the spindle rotates, which consists of two kinds of repetitive and non-repetitive movements. Repeatability error is usually caused by a few journals