提出了一种基于特征的针对系列产品的拉延模具参数化建模方法。把参数化方法与基于特征的三维建模技术有机地结合起来 ,将模具各部分以参数的方式进行处理 ,在针对某一几何拓扑关系类似的系列产品中以一典型件建立其参数化模具模型后 ,可通过修改模具模型特征 ,产生其他同类产品的相应模具模型 ,从而极大地提高了产品的设计效率。 A parametric modeling method of drawing dies for a series of products based on features was proposed. The parameterization method and feature-based 3D modeling technology are organically combined, and the various parts of the mold are processed by means of parameters. A parametric mold model is established with a typical part in a series of products with a similar geometric topological relationship After modification, the mold model features can be modified to generate corresponding mold models for other similar products, thereby greatly improving the design efficiency of the product.