The Study And Development Of Standard-part Library Of 3D Die-casting Die

With the development of near net shape casting technology, die castings are being used widely increasingly. Thus the task of design and manufacture of die-casting dies becomes more and more onerous. Accordingly this promotes the development of die-casting CAD technology. Therefore the subject of establishing 3D standard-part library of die-casting dies is put for reducing the repetitive work of design people in the course of design die-casing dies, predigesting the design course, improving the efficiency and quality of CAD software, shortening the period of developing product.On the basis of the domestic and abroad research data and the situation about establishing standard-part library, 3D standard-part library of die-casting dies is established with solid modeling methods of feature-based parametrized driving. This paper analyzes the basic idea of developing standard-part library, introduces solid modeling methods of feature-based parametrized driving, and develops a practical 3D standard-part library of die-casting dies with Solidworks 2004 as developing platform, Visual Basic 6.0 as developing tool and Access database as tool of managing all data of die-casting dies standard parts.Through the study of this subject, some results and conclusions are drawn as follows:(1) This paper puts forward the constitute structure of 3D standard-part library system of die-casting dies and make some research in establishing methods of standard-part model library of die-casting dies, standard-part model parameterized library and user management system.(2) In the course of developing software system, this paper uses the ADO database interface technique of Microsoft in order to solve the database linking problem. It speeds the run-time.(3) Dimension parameter of standard parts in the system is credible. Because all dimension data comes from "simple handbook of die design and manufacture", the system can be regarded as a digitized design handbook about die-casting dies.(4) The system can be loaded into SolidWorks as a plug-in unit. It can be executed just in SolidWorks platform. That's to say, it has the uniform interface with SolidWorks whose interface is friendly, beautiful, and highly visualized. What's more, the system has the high characteristics of transplantation and expansion.It is a very important foundational work to establish standard-part library of dies. It's necessary for CAD/CAM software to be more practical. And it is significant to develop SolidWorks software further and to generalize standardization of die-casting die.