组合机床及专用机床设计时,对于精度,要求较高的孔,经常采用刚性镗头加工。关于刚性镗头的主轴结构参数,常以类比法为主,参考典型结构资料或实践经验来确定,很难做到结果的统一和稳定。目前虽有资料介绍,用数学解析、计算机辅助设计来确定主轴参数,但方法也繁琐,实际使用时仍很不便。本文试图以主轴的静刚度设计理论为依 Combination of machine tools and special machine design, precision, demanding holes, often using rigid boring head machining. About rigid boring head spindle structure parameters, often analogy-based, with reference to the typical structure of the data or practical experience to determine, it is difficult to achieve the unity and stability of the results. Although there are data presentations, using mathematical analysis, computer-aided design to determine the spindle parameters, but the method is cumbersome, the actual use is still very inconvenient. This paper attempts to design the theory of the static stiffness of the spindle as the basis