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在精密镗床上进行大直径深孔镗削是采用悬伸支承的主轴部件(图1)来实现的。在规定的加工精度和生产率的条件下,为了增加镗削长度就必须提高主轴部件的抗振性或采用各种型式的减振装置。本文叙述的带有悬伸支承的主轴的设计与计算方法,能够保证主轴具有最高的抗振性。这种方法是在对精密镗床加工深孔时的稳定性进行理论和实验研究的基础上提出来的。
Large diameter deep hole boring on a precision boring machine is achieved using overhung spindle components (Figure 1). Under the conditions of the specified machining accuracy and productivity, in order to increase the length of the boring, it is necessary to increase the vibration resistance of the spindle components or adopt various types of vibration damping devices. This article describes the design and calculation of the main shaft with cantilevered support, to ensure that the spindle has the highest vibration resistance. This method is based on the theoretical and experimental study of the stability of precision boring machine deep hole processing.