Based On Mdt Injection Mold Gating System Feature Modeling And Intelligent

The purpose of studying this theme is developing 3D Feature-Based modeling system of the feed system of plastic injection mould, in order to improve the efficiency and quality of designing the feed system of plastic injection mould.In this paper, based on analysis and comparison of the second developing tools the MDT has supplied, combined the characteristic of gate and runner of the feed system, for achievement of the high-powered of the system running, the 3D Feature-Based modeling system of the feed system of plastic injection mould is developed through integrating VC++ 6.0 with ObjectARX2002 on the platform of the Mechanical Desktop 6.0(MDT6.0).Based on analysis and comparison of all kinds of precepts about feature sorting of the different structural feed systems, a 3D feature library of the feed system is built on the platform by utilizing Feature-Modeling technology and parametric technology, and integrated with the former 3D feature library of plastic product. Based on summarizing former others' design experiences, a design rules library of the feed system. A consultation expert system about the gate's type and location is built by the method of Object-Oriented database technology. Based on establishing the design series parameter database on the platform of the SQLServer2000, by utilizing ADO database accessing technology, an intelligent design system with the direction of RBR is constructed.Calling of their features and inputting parameters interactively can sculpt the fusional solid model of the feed system and plastic. By using the gate consultation expert system, and the general information-model of plastic, and the intelligent design system of feed system, the rapidly modeling of the whole of feed system can be accomplished, with some intelligent elements reflected.A user-friendly visual special interface is customized on the basis of the interface of MDT 6. 0. At last, two actual processes of the modeling of feed system and plastic product are demonstrated.Design of the feed system plays an important role in designing plastic injection mould. Therefore, it is very important for enhancing of design efficiency and design quality of plastic injection mould that the design system finally achieves simultaneous forming of the feed system and molding part. What's more, the work of this paper lays a definite foundation for the integration of CAD/CAE/CAM/CAPP of injection mould.