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    Apparatus for monitoring tool life
    3.
    发明公开
    Apparatus for monitoring tool life 失效
    用于监控刀具寿命。

    公开(公告)号：EP0119680A1

    公开(公告)日：1984-09-26

    申请号：EP84300159.5

    申请日：1984-01-11

    申请人： The Production Engineering Research Association

    发明人： Moore, Arthur Ivan Walter

    IPC分类号： G01N3/58 ,  B23Q11/04

    CPC分类号： G05B19/4065 ,  B23Q17/0971 ,  G01N3/58 ,  G05B2219/37004 ,  G05B2219/37242 ,  G05B2219/37432 ,  G05B2219/37433 ,  G05B2219/37434 ,  G05B2219/37493 ,  G05B2219/37498 ,  G05B2219/37544 ,  G05B2219/37545 ,  G05B2219/50008

    摘要： A system for monitoring the vibration of a power driven cutting tool during machining first produces a signal proportional to the vibration spectrum of the tool over a preselected band width. This is passed through a digitally controlled attenuator which is adjusted to provide an output signal at a preselected level. The degree of attenuation is stored, as is a reference value which is generated as a function of the attenuated signal. Then, during subsequent machining operations under the same machining conditions the attenuator is controlled to provide the same degree of attenuation and the reference value, which is in the form of a digital signal, is compared with the rectified and digitised output of the attenuator. When the latter exceeds the reference value a control signal is generated which either provides an audible or visual warning that the cutting tool is worn and therefore due for replacement or initiates an automatic tool changing operation. The system effectively monitors the wear of the tool and, in providing its own reference, i.e. the reference value which is generated, caters automatically for changes in the machining conditions such as use of a different tool or change in workpiece material.

    Tool monitoring system
    8.
    发明公开
    Tool monitoring system 失效
    Werkzeugüberwachungssystem。

    公开(公告)号：EP0165482A2

    公开(公告)日：1985-12-27

    申请号：EP85106105.1

    申请日：1985-05-17

    申请人： OMRON TATEISI ELECTRONICS CO.

    发明人： Yoshimura, Kiyokazu ,  Miyawaki, Norio ,  Yamada, Hiroyuki ,  Nakamura, Hideaki ,  Tshujino, Koichi ,  Takinami, Takaharu ,  Hirayama, Tatemitsu ,  Naito, Tatsuhiko ,  Miyake, Ryoichi ,  Yamada, Takeshi ,  Iwakiri, Tetsuro ,  Otsuka, Kazuaki

    IPC分类号： G05B19/405 ,  B23Q17/09

    CPC分类号： B23Q17/0947 ,  G05B19/4065 ,  G05B2219/37032 ,  G05B2219/37242 ,  G05B2219/37351 ,  G05B2219/37493 ,  G05B2219/37498 ,  G05B2219/37536

    摘要： A tool monitoring system for detecting a tool failure of a tool employed in a tool machine, comprising artificial signal generating unit for generating a predetermined artificial tool failure signal simulating the acoustic emission signal obtained in an actual failure of the tool, acoustic emission transducing unit adapted to be mounted on the tool machine near the tool and driven by the artificial signal generating unit for applying the artificial tool failure signal to the tool machine, acoustic emission sensing unit mounted on the tool machine near the tool so as to receive, in a setting mode of the system where the transducing unit is mounted on the machine, the applied artificial tool failure signal from the acoustic emission transducing unit through the tool machine and, in a monitoring mode of the system where the tool is operated, an acoustic emission from the tool, and signal processing unit for analyzing an output signal generated from the acoustic emission sensing unit to detect the tool failure of the tool.

    摘要翻译： 一种用于检测在工具机中使用的工具的工具故障的工具监控系统，包括人造信号产生单元，用于产生模拟在工具的实际故障中获得的声发射信号的预定人造工具故障信号，声发射换能单元 安装在工具附近的工具机上并由人造信号发生单元驱动，用于将人造工具故障信号施加到工具机，声发射感测单元安装在工具附近的工具机上，以便在设置中接收 将传感器安装在机器上的系统的模式，通过工具机从声发射换能单元施加的人造工具故障信号，并且在工具运行的系统的监视模式中，来自 工具和信号处理单元，用于分析从声发射感测单元产生的输出信号 检测工具的工具故障。