精度指标分析及测量.doc

. 毕业设计(论文) 题目三轴数控机床精度指标分析及测量方法学院工业制造学院专业机械设计与制造学生姓名赖祥学号 200920113208 年级 2009 级指导教师宫霞霞职称讲师. 三轴数控机床精度指标分析及测量方法摘要在数控机床的运用当中,机床的精度一直是机床加工精确度高的关键之所在。静态精度和加工精度是数控精度的主要两大精度。静态精度主要细分为几何精度、定位精度、重复定位精度三大类,是在机床空载情况下的精度。数控机床的精度、效率、柔性化方面的现状与发展趋势近十年来,数控机床的高精化,高效化、功能复合与柔性化和高可靠性已成为领导潮流的发展趋势,并且为世人所共识。高精化数控机床的高精化是其加工对象的要求所使。此次是对三轴数控机床的静态精度进行深入研究。本次论文主要目的研究三轴数控机床的精度指标分析及测量方法。研究范围为三轴数控机床静态精度的各个精度指标以及每个精度相应的测量方法。首先充分了解三轴数控机床的床身结构特点,分析机床的的精度主要由机床自身具体因素造成。再依次查询出三轴数控机床静态精度细分出的各种精度指标,以及各种影响因素,深入了解各精度指标的具体含义。最后根据对各精度指标的充分分析了解研究出各精度所对应的精度测量方法。关键词: 机床结构;精度指标分析;测量方法。 Abstract In which the use C machine tools, machine tool accuracy is the key to the precision machining. Static precision and accuracy of processing is the main two C precision. Static accuracy of the main segments of the geometric accuracy, positioning accuracy, repeat positioning accuracy of three categories, isa precision machine no-load case. CNC machine tool accuracy, efficiency, flexibility, status and development trend over the past decade, high-C machine tools, more efficient, posite and flexible, and high reliability has e a leading trend of the development trend, and the world consensus. The high-precision high-precision numerical control machine tools so that the requirements of the processing object. This isa static accuracy of the 3-C machine tools in-depth study. The main purpose of this paper the three-C machine tool accuracy indicators and measurement methods. The scope of the study is the precision index of the static accuracy of three-C machine tools, and each precision measurement method. First fully understand the structural characteristics of the bed of the three-C machine tools, the accuracy of the analysis of the machine is mainly caused by the machine of their own specific factors. In turn queries a three-C machine tools a static accuracy of the breakdown of the accuracy of various indicators, as well as various factors, in-depth understanding of the specific meaning of the precision index. The last full anal