Abstract: The article focuses on analyzing the characteristics and design methods of injection mold parts, reclassifies non-standard parts, and points out that establishing and calling the corresponding standard library of various parts is an effective way to improve the efficiency of mold design. In order to reduce unnecessary repetitive work and reduce the amount of drawing, the purpose of improving the design efficiency of the injection mold base and shortening the mold design cycle is achieved. Taking NX10.0 as the platform and the NX/OPEN secondary development technology as the tool, the design system of the injection mold base is developed by the program-based modeling method. The design system can not only generate the required mold base accurately and quickly according to the selected key parameters, but also integrates the expert knowledge and experience to reduce the designer's reliance on the design experience. Moreover, the human-computer interaction interface is friendly, the system operation is convenient, and it conforms to the domestic design standards and habits.

Key words: Injection mold base; Mould base design; NX software; Parametric design

摘要： 文章重点分析了注塑模零件的特征和设计方法，对非标准件进行再分类并指出建立并 调用各类零件相应的标准库是提高模具设计效率的有效途径。为了减少不必要的重复工作、 降低绘图量，实现提升注塑模架的设计效率、缩短模具设计周期，以 NX10.0 为平台、 NX/OPEN 二次开发技术为工具，采用基于程序建模法开发了注塑模架设计系统。该设计系统 不但能根据所选关键参数准确快速地生成所需模架，同时还融合专家知识经验以减少设计人 员对设计经验的依赖。而且人机交互界面友好，系统操作方便，符合国内的设计标准和习惯。

关键词: 注塑模架；模架设计；NX 软件；参数化设计