一、引言随着计算机技术、单片机技术、电子技术及数控技术的发展,计算机数控(CNC)系统也得到了迅速发展,其技术也日趋成熟。世界上许多发达的工业化国家已广泛应用数控机床,数控化程度已成为衡量一个国家工业化程度和技术水平的重要标志之一。随着CNC系统性能的不断提高和功能的 I. INTRODUCTION With the development of computer technology, single-chip computer technology, electronic technology and numerical control technology, the computer numerical control (CNC) system has also been developed rapidly and its technology is maturing. Many developed industrialized countries in the world have widely used numerical control machine tools, and the degree of numerical control has become an important symbol of a country’s industrialization and technological level. As CNC system performance continues to improve and function