数控机床的出现已有20多年的历史。虽然它具有众所周知的优点,为中小批复杂件的机械加工自动化开辟了一条新的途径。但是由于其价格较昂贵,而且常受数控系统调整和程序编制工作的影响,机床利用率约70%,再加上应用中需专人编制程序(一般1～2台数控机床需1名程编人员),据介绍,数 The emergence of CNC machine tools for more than 20 years of history. Although it has well-known advantages, it opens up a new avenue for machining automation of small and medium-sized components. However, because of its price is more expensive, and often affected by CNC system adjustment and programming, machine utilization rate of about 70%, coupled with the need to prepare the application process (usually 1 to 2 CNC machine tools to be a program editor ) According to the introduction, number