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1. 发明授权

US5519315A Printed wiring assembly coplanarity inspection fixture 失效
标题翻译：印刷线路组装共面检查夹具
公开(公告)号：US5519315A
公开(公告)日：1996-05-21
申请号：US332206
申请日：1994-10-31
申请人： Joon Park , Galon Melendy
发明人： Joon Park , Galon Melendy
IPC分类号： G01B7/31 , G01B7/34 , G01B7/02
CPC分类号： G01B7/345 , G01B7/31
摘要： A coplanarity inspection fixture for use in determining the coplanarity of a printed wiring assembly with respect to its edge connector. The fixture measures the deviation in parallelism between respective card guides of the printed wiring assembly and the centerline of the edge connector. The fixture includes a frame, a linear bearing block affixed to the frame, a rotational bearing block disposed above the linear bearing block, and a pin slot block fastened to the rotational bearing block. The pin slot block includes a plurality of slots for receiving the rows of pins of the edge connector. Left and right support members are vertically disposed on the frame for guiding and aligning the card guides so that the plurality of rows of connector pins of the connector mate with the slots in the pin slot block. A plurality of clamping jaw assemblies are affixed to the left and right support members that are adjustable to selectively grip a calibration template to calibrate the fixture, and thereafter to calibrate the printed wiring assembly that is to be inspected. Left and right indicators contact the pin slot block adjacent the respective support members along the centerline of the pin slot block, and are zeroed using the calibration template. After calibration, the indicators are used to measure the relative deviation of the centerline of the edge connector with respect to the card guides, which determines the deviation in parallelism between respective card guides and the centerline of the edge connector, whose centerline is designed to be coplanar with the respective centerlines of the card guides.
摘要翻译：用于确定印刷线路组件相对于其边缘连接器的共面性的共平面检查夹具。夹具测量印刷线路组件的相应卡片导轨和边缘连接器的中心线之间的平行度偏差。固定装置包括框架，固定在框架上的直线轴承块，设置在直线轴承座上方的旋转轴承块，以及固定在旋转轴承座上的销槽块。销槽块包括用于接收边缘连接器的销的行的多个槽。左和右支撑构件垂直设置在框架上，用于引导和对准卡引导件，使得连接器的多排连接器针与插槽槽中的槽配合。多个夹钳组件固定到左和右支撑构件上，所述左和右支撑构件可调节以选择性地夹持校准模板以校准夹具，并且此后校准要检查的印刷线路组件。左右指示器沿着针槽插槽块的中心线与相应的支撑构件相邻的针槽插槽接触，并使用校准模板进行归零。在校准之后，指示器用于测量边缘连接器相对于卡引导件的中心线的相对偏差，其确定相应卡片引导件与边缘连接器的中心线之间并联的偏差，其中心线被设计为与卡片指南的相应中心线共面。

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