Development And Study Of Intelligent CAD System For Cutting Tools Used On Modular Machine Tool

With the developing trend of modern manufacturing industry to high precision, high efficiency, high reliability and customization, modern cutting tool design should meet the requirements to be intelligent and customized. Cutting tool performance of modular machine tool directly influences the efficiency of cutting process and the precision and surface quality of the workpiece machined, and further affects the product quality.The quality of cutting tool design based on two-dimensional CAD is poor and the drawing update is inconvenient, therefore pretermissions and mistakes often occurs. Design data can not be shared and reused, which leads to the difficulty for data retrieval. Because of these disadvantages cutting tool design based on two-dimensional CAD can not satisfy the request of CIMS integration .So the study and exploitation for modern cutting-tool's intelligent CAD system will have strong impact on the increase in cutting-tool design efficiency, cutting-tool product competition capability and cutting-tool design innovationThe intelligent CAD system for cutting tools modular machine tool is developed using CBR technology, expert system, dynamic link library, ADO technology and API interface technology in SolidWorks2006, which integrates the merits of Visual C++6.0, SQL Server2000, SolidWorks2006 and DeformThe synchronous DLL mode and secondary developing technology in SolidWorks2006 are adopted to modify the menu of SolidWorks2006 to achieve the information exchange between the MFC and SolidWorks2006 interface. As a result, the powerful interface technology of Visual C++ and three-dimensional modeling technology of SolidWorks2006 are employed. The 3D parameterized cases library and inserts standard library are established using secondary developing technology based on SolidWorks2006, which integrates parameterized technology with feature-based modeling technology and SQL Server. A powerful DBMS is created using ADO technology to achieve the connection between Visual C++ and SQL Server. In the design procedure for cutting tools, expert system is used to describe the characteristics of each component, including geometric features and physical features, and then the algorithm is sealed into the information model of the component, which is called as an object class during the tools design. CBR technology is also adopted to design the tools. The design experience that has already existed is fully utilized. The new tools will be designed through modifying and optimizing the similar case in the case library.The results obtained indicate that firstly, the system can carry out the programmed and parametric design in the tool design; Secondly, the system has the database of the tool parameters, which can be easily modified and maintained; Thirdly, the system can automatically build 3D parameterized models for the tools to be designed according to the optimized results; Fourthly, the tools designed according to the optimized results can meet the requirements of chip-flow on the machine tools with multi-spindles and the requirements of rigidity and strength, and the design can increase life the tool; Fifthly, the system has the strong function and can be easily maintained and managed and it has stronger practicability.