UG is a 3D CADPCAM software widely used in the manufacturing industry, providing powerful parametric feature modeling and assembly modeling techniques to make complex 3D design problems convenient and intuitive. UG software mainly has the following features: perfect composite modeling function, and realizes the intuitive description of design ideas. UG software provides a complete composite modeling tool, including solid modeling, surface modeling and assembly modeling. With these tools, the designer can turn the design idea into an intuitive model, which can be observed and modified as an assembly before considering the two-dimensional drawing, thus realizing a visual description of the design idea. Increased design flexibility and made conceptual design possible. Thanks to the use of composite modeling, the part model can be built flexibly by selecting solids and wireframes, applying parameter constraints, etc., and the assembly can be directly constructed from the part model, and can be assembled to the part. The two layers are converted and modified. That is, a sufficient flexible design method is provided, which makes conceptual design possible. Provides a complete solution for assisted design and auxiliary analysis. UG software integrates advanced assembly, mechanism interference analysis, motion simulation, finite element analysis and other auxiliary tools with convenient and fast modeling functions, providing complete product design. /Digital construction y digital analysis 0 solution, which can shorten the design cycle, reduce the time and cost associated with product development, practical user-defined features and secondary development tools UG software graphics capabilities can basically meet the general drawing requirements, and A number of commonly used 3D modeling features are provided. However, the specific application areas and application objects are different, and the common parts and design standards are different. To this end, UG provides users with custom features and secondary development tools to facilitate users to build their own feature library and functional system. The unification of graphics and the automatic update makes it possible that the graphics and data in the UG software are unified, that is, the data is automatically updated after the graphics change, and the graphics can be driven by the data. In summary, using UG's parametric modeling and friendly secondary development tool UGPOPEN, users can develop a dedicated design interface and dedicated functional modules, establish a universal and dedicated standard parts library, and integrate with UG. Thereby greatly improving the design efficiency. The library building method shows the functional structure of the progressive die intelligent design software PRODIEWIZARD (hereinafter referred to as PDW) developed by us in cooperation with UG. In order to enable the designer to quickly complete the structural design of the progressive die, PRODIEWIZARD stores the standard components in the standard library according to their type, and provides a management module, so that users can expand or modify the contents of the library as needed. The standard parts library is based on the UG standard parts library is open to the user, the user can easily select and modify the parameters to quickly get the standard parts of their required size, and users can add new standard parts according to their needs. The establishment of the CATALOG of the standard parts must consider the following questions: (1) How to display the graphic information and data information of the standard parts completely and clearly to the user; (2) How to open the assembly holes of the standard parts on the template and consider the cooperation Relationship; (3) How standard parts are conveniently positioned in the mold assembly model.