一、引言和简介现在自动半自动机床和加工自动线在机械加工中越来越多,然而测量技术落后于机械加工的情况目前在很多工厂还是相当突出的。很多自动线没有相适应的测量方法来检验产品和对加工进行调整,仍是靠人工作工序抽验和最后的综合检验,显然这不能满足生产率的要求。绝大多数产品的精度是依靠工艺装备来保证,然而这种“保证”不会总是可靠的,一旦 I. INTRODUCTION AND INTRODUCTION Automated semi-automatic machine tools and automatic processing lines are nowadays more and more in machining. However, the measurement technology lags behind the machining at present in many factories is still quite prominent. Many automatic lines do not meet the appropriate measurement methods to test the product and adjust the process, still rely on manual testing procedures and the final comprehensive test, it is clear that this can not meet the requirements of productivity. Most of the accuracy of the product is to rely on process equipment to ensure that, however, this “guarantee” will not always be reliable, once