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组合机床刚性主轴部件的刚度,是这类组合机床设计中的主要内容。目前常用的计算方法,有按经验数据选取和按线图查找,以决定相应的参数。这两种方法有一定的近似性和局限性,且并只要验算合格,就不再考虑结构尺寸是否选得恰到好处。本文不仅考虑了传动力对刚度的影响,还能够同时求出所需各点的挠度和转角,而且可以根据刚度要求,自动求解最合适直径的功能。整个计算已编成通用程序,使用时只需从电传机输入数据,从数据输入到打印结果,只用3～5分钟,因此具有适用范围广、精度高和速度快等特点。
The rigidity of the combined machine tool’s rigid spindle components is a key element in the design of such composite machine tools. The commonly used calculation methods, according to the empirical data selection and line chart to find, in order to determine the appropriate parameters. These two methods have some similarities and limitations, and as long as the verification is successful, it is no longer a question of whether the size of the structure is properly selected or not. In this paper, we not only consider the influence of transmission force on stiffness, but also calculate the deflection and rotation angle of each point at the same time, and automatically calculate the most suitable diameter according to the stiffness requirement. The entire calculation has been compiled into a common program, the use of just input data from the telex machine, from the data input to the print results, only 3 to 5 minutes, it has a wide range of applications, high precision and speed characteristics.