前言有机玻璃模型刚度试验是在六十年代开始的,许多工业发达国家陆续采用模型试验的方法来研究机床的主要另部件的设计,我国在最近几年,一些研究所、工厂高等院校也恢复对机床模型进行静、动刚度的试验,并取得一定的效果,实践证明模型试验能够比较准确地预测出新结构的刚度指标,特别是对比试验来选择确定筋板形式、测定不同结构的刚度指标来比 Introduction The plexiglass model stiffness test began in the 1960s. Many industrialized countries have successively adopted the model test method to study the design of the main parts of the machine tool. In recent years, some institutes and factories in China have also resumed their studies. The static and dynamic stiffness tests of the machine tool model have been made and certain results have been obtained. Practice has proved that the model test can accurately predict the stiffness index of the new structure, especially the comparative test to select the determined rib form and determine the stiffness index of different structures. To compare