System and a method for detecting a malfunction in the operation of a
parts assembly machine
    1.
    发明授权
    System and a method for detecting a malfunction in the operation of a parts assembly machine 失效
    系统和检测零件组装机操作故障的方法

    公开(公告)号:US4924419A

    公开(公告)日:1990-05-08

    申请号:US197861

    申请日:1988-05-24

    IPC分类号: B23P19/00

    摘要: The system and method of the present invention senses the time that it takes an automatic machine to assemble two or more parts and compares that time against a know time for correctly assembled parts. If the sensed time varies from the known time the attempted part assembly is rejected. A linear signal transducer is coupled to an assembler portion of the automatic machine to provide a signal indicative of the time it takes for the assembler portion to traverse its assembly distance. The provided signal is compared against a predetermined threshold signal for purposes of determining a variance corresponding to a defect in the assembly process.

    摘要翻译: 本发明的系统和方法检测自动机器组装两个或更多个部件所需的时间,并将该时间与正确组装部件的知识时间进行比较。 如果检测到的时间从尝试的部件组装被拒绝的已知时间变化。 线性信号传感器耦合到自动机器的组装部分,以提供指示组装部分穿过其组装距离所花费的时间的信号。 将所提供的信号与预定阈值信号进行比较,以便确定对应于组装过程中的缺陷的方差。