公开(公告)号：US5562788A

公开(公告)日：1996-10-08

申请号：US309534

申请日：1994-09-20

申请人： Lee E. Kitson ,  Dennis K. Rock ,  James E. Eder

发明人： Lee E. Kitson ,  Dennis K. Rock ,  James E. Eder

IPC分类号： B29C70/38 ,  B32B31/00

CPC分类号： B29C70/384 ,  G01N21/8903 ,  B29C2037/903 ,  B29C70/545 ,  G01N2021/8472 ,  Y10T156/1788

摘要： A method of and apparatus for detecting flaws on a composite surface laid-up by a fiber placement machine. The invention includes a vision imaging system (78) mounted on the machine so that it has a field of view of the composite tows after they have been compacted by a compaction roller (74). In one embodiment, the visual imaging system (78) includes a laser analog displacement sensor. The imaging system provides a computer analysis system (84) with data regarding the location of the edges of the individual composite tows. The computer imaging system (84) uses the tow edge location data to compute the location and size of gaps or overlaps between the tows or the presence of foreign material. This information is useful in quality control models to evaluate the manufacturing process or final part quality.

摘要翻译： 一种用于检测由纤维铺放机铺设的复合表面上的瑕疵的方法和设备。 本发明包括安装在机器上的视觉成像系统（78），使得它们在被压实辊（74）压实后具有复合丝束的视场。 在一个实施例中，视觉成像系统（78）包括激光模拟位移传感器。 成像系统为计算机分析系统（84）提供关于单个复合丝束的边缘的位置的数据。 计算机成像系统（84）使用拖曳边缘位置数据来计算丝束之间的间隙或重叠的位置和尺寸或异物的存在。 该信息在质量控制模型中有用，用于评估制造过程或最终零件质量。