公开(公告)号：US5189808A

公开(公告)日：1993-03-02

申请号：US709927

申请日：1991-06-03

申请人： Michael D. Evans ,  Curtis L. Gnagy ,  William F. Herold ,  Christopher W. Lagerberg ,  Bruce W. Nelson

发明人： Michael D. Evans ,  Curtis L. Gnagy ,  William F. Herold ,  Christopher W. Lagerberg ,  Bruce W. Nelson

IPC分类号： G01B3/28 ,  G01B7/26

CPC分类号： G01B3/28 ,  G01B7/26

摘要： A gauge for measuring the depth of a hole countersink in a workpiece for a fastener, or for measuring the protrusion height of a fastener head above the surface of the workpiece, includes a tapered cylindrical case for holding a transducer such as an LVDT, and a probe assembly removably mounted on the lower end of the case. The probe assembly includes a foot having an annular contact ring at its lower end for contacting the workpiece around the hole or around the fastener head to establish the reference position from which the measurement is to be taken. A probe is mounted in a well in the foot for axial sliding movement therein and is captured within the food by a connector which is screwed onto the upper end of the foot. The connector screws into the lower end of the case and a stud of the LVDT extends through a bore in the end of the case and the connector to contact the top end of the probe on measure the axial position of the probe while it is sensing the countersink depth or the fastener head protrusion. A cable connects the LVDT to a digital indicator to provide a readout of the measurement taken.

摘要翻译： 用于测量用于紧固件的工件中的孔埋头孔的深度或用于测量紧固件头部在工件表面上的突出高度的测量器包括用于保持诸如LVDT的换能器的锥形圆柱形壳体，以及 探头组件可移除地安装在壳体的下端。 探针组件包括一个脚，其下端具有环形接触环，用于使工件围绕孔或围绕紧固件头部接触，以建立将要进行测量的参考位置。 探针安装在足部中的井中，用于在其中轴向滑动运动，并且通过螺纹连接到脚的上端的连接器捕获在食物内。 连接器螺钉插入壳体的下端，并且LVDT的螺柱延伸穿过壳体的端部的孔，并且连接器在测量探头的轴向位置时接触探头的顶端，同时它感测到 锪孔深度或紧固件头突起。 电缆将LVDT连接到数字指示器以提供所测量的读数。