Abstract
The research work documented in this paper is divided into two parts. In the first part, a generic infrastructure for implementing STEP-NC data models is proposed. The infrastructure illustrates a bidirectional data flow of three different data forms: STEP-NC data, machine specific language, and low-level machine actuation signals. The proposed method utilizes the concepts of modularity and database to harmonize and group machining processes and to manage machining activities. The second part reports on the development of a computer numerical control (CNC) lathe that interprets STEP-NC data into low-level machining instructions. This process was achieved through the development of a software package that can process STEP-NC data and provide an interface with a retrofitted CNC lathe. Tool path information is generated and executed “on-fly” with feedback handled. This new CNC system illustrates the benefits of a novel generation of CNC machine tools that have the capability of being driven by a high-level data model.
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