《CNC智能技术展望》.pdfVIP

Computers in Industry 57 (2006) 141–152 /locate/compind Making CNC machine tools more open, interoperable and intelligent—a review of the technologies X.W. Xu a,*, S.T. Newman b a Department of Mechanical Engineering, School of Engineering, The University of Auckland, Private Bag 92019, Auckland, New Zealand b Department of Mechanical Engineering, University of Bath, Bath, BA2 7AY, UK Received 30 August 2004; accepted 7 June 2005 Available online 10 October 2005 Abstract The aim of the next generation of computer numerically controlled (CNC) machines is to be portable, interoperable and adaptable. Over the years, G-codes (ISO 6983) have been extensively used by the CNC machine tools for part programming and are now considered as a bottleneck for developing next generation of CNC machines. A new standard known as STEP-NC is being developed as the data model for a new breed of CNC machine tools. The data model represents a common standard specifically aimed at the intelligent CNC manufacturing workstation, making the goal of a standardised CNC controller and NC code generation facility a reality. It is believed that CNC machines implementing STEP-NC will be the basis for a more open and adaptable architecture. This paper outlines a futuristic view of STEP-NC to support distributed interoperable intelligent manufacturing through global networking with autonomous manufacturing workstations with STEP compliant data interpretation,