Abstract
The study deals with the method of the automatic measurement of workpiece dimensions being arbitrarily set on the table of a 3-dimensional coordinate measuring machine. The measuring path is in advance generated on the basis of a personal CAD/CAM system employing the solid modeling technique. The coordinates of workpieces defined by CAD are different from those of the actual workpieces on the table. To know the position and attitude of workpieces, the image data taken by an ITV camera is compared with CAD data. Based on the information, the measuring path is altered, that makes it possible to actually measure workpieces. The method is experimentally found to be valid.
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