Tool abnormality detecting device
    1.
    发明申请
    Tool abnormality detecting device 审中-公开
    工具异常检测装置

    公开(公告)号:US20030163286A1

    公开(公告)日:2003-08-28

    申请号:US10372114

    申请日:2003-02-25

    申请人: Fanuc Ltd

    发明人: Kuniharu Yasugi

    IPC分类号: G06F011/30

    摘要: A tool abnormality detecting device capable of precisely detecting an abnormality of a tool of a machine tool and timely requiring a change of the tool. Disturbance torques ys and yz exerted on a spindle motor and a Z-axis feed motor, respectively, in machining are estimated and stored in a data table. Averages ysav 1 and yzav1 of ys and yz, respectively, in a period from a point of time preceding the present time by a time period T1 to the present time are obtained as presumed present loads. Running thresholds are determined based on averages ysav23 and yzav23 of ys and yz, respectively, in a period from a point of time preceding the present time by a time period T2 to a point of time preceding the present time by a time period T3 (T1

    摘要翻译: 一种刀具异常检测装置,其能够精确地检测机床的工具的异常,并且及时需要改变工具。 在加工中分别施加在主轴电动机和Z轴进给电动机上的干扰转矩ys和yz被估计并存储在数据表中。 在从当前时间之前的时间点到当前时间段的时间段内,ys和yz的ysav 1和yzav1分别为假定的当前负载。 基于ys和yz的平均值ysav23和yzav23,在从当前时间之前的时间段到时间段T2到时间段T3之前的时段(T1