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Continuous curvature adaptive planning of the measuring path for CMM

HE Xueming1,2,LI Chenggang1,HU Yujin1,QU Ping2,LI Wenjun2(1.School of Mechanical Science and Engineering,Huazhong University of Science and Technology,Wuhan 430074,China;2.School of Mechanical Engineering,Southern Yangtze University,Wuxi 214122,China)  
The coordinate measuring machine working principle widely used in reverse engineering with several methods used for planning and route optimization when measuring surfaces.The circle interpolation method and the polynomial method are widely used because they are simple and easily controlled.During adaptive measurements of a sculptured surface,the circle interpolation method and the polynomial method need more data points with the precision rapidly deteriorating as the surface complicity is increases.The present adaptive continuous curvature method assumes that the sculptured surface has n-order geometric continuity to measure object with sculptured surfaces.The system improves the precision and efficiency of the planned trajectory,and the reliability of the results.
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