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凸轮的检测仅仅测得型面座标(即工作曲线)是不够的,同时型面座标也是不易获得的,而型面座标测得值的获得和综合评估、特别是测得结果表达为实际升程曲线,通常只能由凸轮检查仪动态连续地进行全误差测量和评估,或者应用带转台的三座标测量机及其凸轮测量应用软件进行数控测量和评估,但两者都花费昂贵,且我公司也不具备这些测量、评估的手段。然而,笔者仅仅借助一些常规的传统计量仪器并加以组合,再自己动手设计了特殊的夹具及异型测头,便能精密便捷而有效直接测得理论曲线或升程曲线,全面地解决凸轮的测密测量及评估。文章以两种不同类型的实际例子为线索,详细阐述凸轮检测基于的原理和奇特的技巧——测量过程摸拟凸轮机构工作过程,或测量过程模拟凸轮型面几何生成过程。图5表2。
The detection of the cam is not enough to measure only the profile coordinate (ie, the working curve), and the coordinate of the profile is not easy to obtain. The acquisition and comprehensive evaluation of the measured value of the profile coordinate, in particular, the measured result is expressed as The actual lift curve can only be measured and evaluated either dynamically and continuously by cam inspectors in general or by NC measurement and evaluation using a rotary tableed coordinate measuring machine and its cam measurement application but both are costly , And my company does not have these measures to assess the means. However, I just use conventional conventional measuring instruments to combine them, and then I designed my own special fixtures and special-shaped probes to measure the theoretical curves or lift curves accurately and conveniently. Density measurement and evaluation. Taking two different types of practical examples as clues, the paper elaborates on the principles and peculiar techniques based on cam detection - the measuring process simulates the working process of the cam mechanism or the measuring process simulates the geometric generating process of the cam profile. Figure 5 Table 2.