公开(公告)号：US4555955A

公开(公告)日：1985-12-03

申请号：US574446

申请日：1984-01-27

Applicant: Paul W. Morgan ,  Thomas J. Ellwood ,  Kish D. Amlani ,  John B. Hodges

Inventor： Paul W. Morgan ,  Thomas J. Ellwood ,  Kish D. Amlani ,  John B. Hodges

IPC: G01L5/00 ,  B23Q17/09 ,  G01L5/16

CPC classification number: G01L5/161 ,  B23Q17/0966

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US4789035A

公开(公告)日：1988-12-06

申请号：US173919

申请日：1988-03-28

Applicant: Martin W. Hamilton ,  Kish D. Amlani

Inventor： Martin W. Hamilton ,  Kish D. Amlani

IPC: G01G3/14 ,  G01L1/22

CPC classification number: G01G3/1408 ,  G01L1/2218

Abstract: A compression type load cell (50) is provided for measuring a load (L) applied to an object (3). Cell (50) has a first end (7) adapted to receive load (L) thereupon and an opposite end (9) adapted to support cell (50) upon object (3) with end (7) adapted to direct load (L) axially along a central longitudinal axis (x) of cell (50). Cell (50) has a reduced section (8) having a first pair of bores (14,14') therethrough that are preferably oriented substantially transverse to axis (x) and are spaced-apart from each other substantially symmetrically on opposite sides of axis (x). Reduced section (8) has a second pair of bores (16,16') therethrough between bores (14,14') and end (9) that are preferably substantially transverse to axis (x) and respectively axially aligned with bores (14,14'). A pair of slots (19) and (19') extend from outside cell (50) and respectively preferably intersect bores (14,14') for their entire length and a channel (18) extends between and intersects bores (16) and (16') for their entire length providing section (8) with enhanced axial movement between bores (14,14') and (16,16') upon application of load (L) on cell (50) which is measured by strain sensing means mounted on load sensing surfaces (10,12) defined on opposite sides of section (8) between bores (14,14') and (16,16').

Abstract translation: 提供一种用于测量施加到物体（3）上的载荷（L）的压缩式称重传感器（50）。 电池（50）具有适于接收其上的负载（L）的第一端（7）和适于在物体（3）上支撑电池（50）的相对端（9），端部（7）适于引导负载（L） 轴向地沿着电池（50）的中心纵向轴线（x）。 电池（50）具有减小的部分（8），其具有穿过其中的第一对孔（14,14'），所述第一对孔（14,14'）优选地基本上横向于轴线（x）定向并且在轴线的相对侧上彼此间隔开大致对称 （X）。 减少部分（8）在孔（14,14'）和端部（9）之间穿过其中的第二对孔（16,16'），其优选地基本上横向于轴线（x）并且分别与孔（14， 14'）。 一对狭槽（19）和（19'）从外部单元（50）延伸，并且分别优选地相对于其整个长度的孔（14,14'）相交，并且通道（18）在孔（16）和 16'），其整个长度提供部分（8）在孔（50）上施加载荷（L）之后，在孔（14,14'）和（16,16'）之间具有增强的轴向运动，该应力传感装置 安装在限定在孔（14,14'）和（16,16'）之间的部分（8）的相对侧上的载荷感测表面（10,12）上。