Intelligent Professional Tool Cad System Research And Development

With the high-precision, high-efficiency, high-reliability and customization direction of modern manufacturing, modern cutting-tool design should meet intelligence and specialty requirements. The study and exploitation for modern cutting-tool's intelligent CAD system will bring great impaction to cutting-tool design efficiency increasing, cutting-tool product competition capability buildup and cutting-tool design innovation.This article exploits intelligent CAD system for special cutting-tool based on UG platform and VC condition, making use of object-oriented method. This CAD system brings forward integration reasoning technology and intelligentizes special cutting-tool design by means of expert system and case-based reasoning principle. Meantime, it integrates the CAD system with UG software, realizing cutting-tool 3D parameterized modeling.By dint of object-oriented technology, the expert-system (ES) module of intelligent special cutting-tool CAD system brings forward the object-oriented method for knowledge-expression which, integrated with rule-based knowledge expression method, brings the CAD system's knowledge base into being;the ES module combines object-oriented reasoning with rule-based reasoning and database-searching to form the CAD system's reasoning mechanism;the ES module introduces text-prefabricating and path-tracking method to form the CAD system's explaining mechanism. The case-based reasoning (CBR) module of the intelligent special cutting-tool CAD system is made up of the following six modules: case-base, case-forming, case-searching, case-estimation, case-modifying and case-saving. And the case-base is part of the CAD system's knowledge base.The parameterized design and 3D design are the trend of modern machine design. The intelligent special cutting-tool CAD system exploits 3D parameterized modeling module for special cutting-tool. This module is realized by dint of the parameterized technology and 3D modeling technology. This parameterized technology is realized by means of the program- parameterized and dimension-driven methods, and the 3D modeling by means of the UG's modeling function. The quadratic exploitation based on UG integrates parameterized technology with feature-based modeling technology, and starting the UG process realizes the integration between the CAD system and UG software.The intelligent special cutting-tool CAD system is provided with the functions on user priority setting, assuring the CAD system's safety, and it has good user interface and convenient operation due to being exploited based on Windows 2000.