Abstract
In this paper, application of coordinate measuring machine(CMM) in reverse engineering(RE) of product was introduced. Reverse engineering had become a viable method to create a digital model of an existing physical part and to duplicate it. The reverse engineering process involves measuring an object，reconstructing its point cloud as a digital model and rapidly machining it. Application of obtaining point cloud using CMM was presented in reconstructing the digital model of a shoes tree. Rapid duplicate of a severely worn cam of textile machinery was realized by contact measuring profile points using CMM. Reconstructing the digital model and locally modifying the computer model in computer aided design (CAD) software. Finally, numerical control program was finished in computer aided manufacturing (CAM) software. Automatic measurement close freeform curve function of CMM decreased the workload of picking up data of cam profile. Experimental results showed using CMM can greatly save time and alleviate intension of labour.
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