Abstract: In order to adapt the development of modern advanced manufacturing, the study on intelligent coordinate measuring machine (CMM), which can perform online automatic measurement with non-contact, high accuracy method, has been an inevitable trend in the development of manufacturing industry, in which utilizing machine vision inspecting methods will provide technical support for automatic measuring free-form sculptured surfaces. The operating principle of this measuring machine for contour of prototype workpiece is introduced, and the function of a rotary table and an auto-centering module in the whole system for measuring revolving workpieces are discussed. By using appropriate image processing techniques, an image identification system is devised which includes detection of foreign body in working space, identification of model number of workpiece and detection of riding position of workpiece.

Key words: Intelligent coordinate measuring machine Machine vision, Revolving workpieces Image process