Abstract
The integration research of measuring machine and CAD information, just CMM/CAD integration technology, is far behind the information integration of mechanical processing and CAD. With the rapid development of information integration industry and in the manufacturing process of the parts with complex curve surface, it is crucial to integrate the measurement and machining procedures based on IGES as that IGES is a general ANSI standard of information exchange for CAD/CAM among different computer systems. The measuring path planning determines the realization of measuring each sampling point and the completion of all sampling points safely and effectively by using measuring equipment. Based on IGES in this paper, the calculation method of normal direction at the location of sample point is studied for different surfaces, so as to improve the measuring precision. Then the calculation strategy for the positioning points and the measuring range is established, and the identification method for the topological relation between surfaces is also researched for improving the measuring efficiency and security. At last, the measuring sequence of the sampling points to be planned reasonably based on TSP is given. It is believed that the research results can provide some useful contributions towards the development of automated inspection task planning and systems, especially for coordinate measuring machines.
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