基于综合评价体系的五轴数控机床加工性能评价和误差溯源方法

发布时间：2018-06-23 11:53

本文选题：五轴数控机床 + S形检验试件　；参考：《机械工程学报》2017年21期

【摘要】：五轴数控机床的加工性能在制造行业一直是研究的热点,基于检验试件切削是常见的测评方法,然而试件和机床之间的映射关系难以确定,出现误差后如何调整精度成为难点。为了科学对其评价,通过仿真平台建立了机床控制系统参数与五轴机床检验试件——S试件加工误差之间的映射关系,引入机床各轴分类评价的隶属度,此基础上开发了误差溯源的综合评价体系,由三坐标测量机得到的S件轮廓误差数据反求出机床的加工性能等级和较差的轴类控制参数,并制订了基于S试件的机床加工精度测评规范,最后通过某五轴AB摆数控机床的切削试验,验证了方法的有效性。该成果有助于解决我国高端制造业长期缺乏机床性能测评的共性技术问题,具有重要的应用前景和经济价值。
[Abstract]:The machining performance of five-axis NC machine tool has been a hot topic in manufacturing industry. The test piece cutting is a common testing method based on inspection. However, the mapping relationship between the test piece and the machine tool is difficult to determine, and how to adjust the accuracy becomes difficult after errors occur. In order to evaluate the machine tool scientifically, the mapping relationship between the parameters of machine tool control system and the machining error of test piece S of five-axis machine tool is established through the simulation platform, and the membership degree of classification and evaluation of each axis of machine tool is introduced. On this basis, a comprehensive evaluation system of error traceability is developed. The machining performance grade and the poor shaft control parameters of the machine tool are obtained from the S part contour error data obtained from the coordinate measuring machine (CMM). The machining accuracy evaluation standard based on S specimen is established. Finally, the validity of the method is verified by the cutting test of a five-axis AB pendulum NC machine tool. This achievement is helpful to solve the common technical problem of the lack of machine tool performance evaluation in high-end manufacturing industry of our country for a long time, and has important application prospect and economic value.
【作者单位】：电子科技大学机械电子工程学院;
【基金】：国家科技重大专项资助项目(2013ZX04001-021)
【分类号】：TG659

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