参数化设计是利用模块结构的相似性,在模块基本结构不变的前提下,改变模块的一组或几组几何尺寸,从而快速产生另外一种或几种模块的设计方法。数控机床乃相当复杂的机械产品,为解决机床参数化过程中涉及的结构复杂、模块数量多、设计参数庞杂等带来的缺点,本文提出模块模型 Parametric design is the use of modular structure similarities, the basic structure of the module unchanged under the premise of changing a module or groups of geometric dimensions, which quickly produce another or several modules of the design. CNC machine tools are quite complex mechanical products. In order to solve the shortcomings of complex structure, large number of modules and complicated design parameters involved in the process of parameterization of machine tools, this paper proposes a modular model