Master NC program design for variant parts

Abstract

Aiming at the rapid design issues of NC machining program in the context of mass customization, a kind of master NC program model that fits to be used in part dimension variant design was presented after analyzing the variant design technologies and NC programming technologies. The content and structure of master NC program were analyzed in detail based on the definition and partition of machining feature as well as the design of NC subprogram base. Then the constructing process of master NC program was presented. At the same time, a design guide of master NC program was developed, so master NC program of customized part family can be constructed rapidly through the interaction of human and computer, and the NC machining program generation based on master NC program is realized. Therefore, the NC machining program of variant part can be generated rapidly, and the efficiency and automation level of NC programming are heightened. Finally, an application example was given to verify the feasibility of principles.