摘  要：基于逆向工程的思想提出了一种应用于盘形凸轮廓线的测量及分析系统，并详细介绍了该系统的设计原理、硬软件组成及测量数据的处理算法。通过实际测量并对测量数据按设计算法处理后表明，该系统的测量及分析方法正确，效果比较理想。利用所获得的有效数据在系统中添加后置CAD模块，建立凸轮的三维CAD实体模型，就可以很方便地进行数控机床加工。   关键词：盘形凸轮；轮廓曲线；测量装置；逆向工程   中图分类号：U263.3；TP274+.2        文献标识码：A          文章编号：1672-4984（2008）03-0101-03   Design of profile measurement and reverse analysis system for plate cam   FENG Jian， XIE Min， ZHANG Xing-yuan   （Emei Campus，Southwest Jiaotong University，Emei 614202，China）   Abstract： Based on the principle of reverse engineering, the system for measurement and analysis of the profile of plate cam was brought forward. The theories, configuration of the hardware and software and the algorithm for the post processing of the acquired data of the system were also described. The comparison of the measurements and computed results based on the developed theories shows that the measurement and analysis method of this system is correct and the result is reasonable. Utilizing the available data and adding a CAD module to this system, building the 3-dimensional solid model for the plate cam, could be used for the machining on a NC machine expediently.   Key words： Plate cam； Profile curve； Measure device； Reverse engineering   Editor：liyan