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2. 发明授权

US4555955A Combination loading transducer 失效
标题翻译：组合负载传感器
公开(公告)号：US4555955A
公开(公告)日：1985-12-03
申请号：US574446
申请日：1984-01-27
申请人： Paul W. Morgan , Thomas J. Ellwood , Kish D. Amlani , John B. Hodges
发明人： Paul W. Morgan , Thomas J. Ellwood , Kish D. Amlani , John B. Hodges
IPC分类号： G01L5/00 , B23Q17/09 , G01L5/16
CPC分类号： G01L5/161 , B23Q17/0966
摘要： The performance and condition of a tool, workpiece or machine tool is sensed during machining operations by securing a single or plural strain gages to the tool holder. To increase the sensitivity of the strain gages on stationary tool holders, the tool holders are contoured to provide locations of higher strain in which the strain gages are attached. A single or plural strain gages are positioned to sense the combined effect of different strains such as axial thrust and torque and are electrically connected to provide a single Wheatstone bridge output "signature" which may be monitored to detect a defective operation. In rotating tools, the single "signature" output greatly reduces the coupling equipment such as rotary transformers and also reduces the monitoring equipment. A unique arrangement of a single strain gage or alternatively a plurality of gages enables monitoring of both torque and thrust simultaneously. The output from the plurality of strain gages can be made additive to increase sensitivity and yet requires only a single bridge circuit. The design is flexible in that the gages may be arranged for optimization of the single bridge output for either torque or thrust.
摘要翻译：通过将单个或多个应变计固定在刀架上，在加工操作过程中检测到刀具，工件或机床的性能和状况。为了提高应变计对固定刀架的灵敏度，刀架具有轮廓，以提供应变计连接的较高应变位置。定位单个或多个应变计以感测不同应变（例如轴向推力和扭矩）的组合效应，并且电连接以提供单个惠斯登电桥输出“签名”，其可被监视以检测有缺陷的操作。在旋转工具中，单个“签名”输出大大减少了旋转变压器等联轴器设备，还减少了监控设备。单个应变计或多个量规的独特布置使得能够同时监测扭矩和推力。来自多个应变计的输出可以被添加以提高灵敏度，并且仅需要单个桥接电路。该设计是灵活的，因为量规可以被布置为优化用于扭矩或推力的单桥输出。

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