在工业生产中,产品零部件的漏装普遍存在。它不仅降低产品质量,而且也影响了产品生产率。从电磁感应基本原理出发,提出通过感应监测金属零部件装配过程,对已装配零部件进行计数,实现对零部件装配过程中漏装检测的自动化,达到在线漏装监控的目的。理论分析了利用电涡流感应原理监测金属零部件运动的可行性,并利用MATLAB软件进行了仿真计算。在理论分析的基础上,设计了针对金属零部件的传感器、相应的信号处理电路及配套软件,建立在线检测系统并进行了模拟试验。此方法有效地解决了由人为因素造成的零部件漏装等问题,为工厂节约了成本,有效地提高产品的合格率。
In industrial production, neglected loading of metal parts is very normal. It not only causes the quality reduction of products, but also affects production rate. Based on the theory of electromagnetic induction, by supervising the assemblage process of metal parts, it is able to count the number of assembled metal parts so that automatic online monitoring of neglected loading can be achieved. The feasibility of using the eddy current method to monitor the motions of metal parts is analyzed theoretically and MATLAB is utilized to simulate. On the basis of theoretical analysis, the specific eddy current type transducer, the appropriate signal-processing circuits and the software are designed. A testing system is established for analog. This method can effectively solve the problem of neglected loading by artificial factors, save the costs of factories, raise the FPY of products.