摘要:
An inspection system (9) includes an idler wheel (61) that is coupled to a fabrication system (8) and is in contact with a backing layer (65) of an applied material (64), A rotation sensor (63) monitors the idler wheel (61) and generates a rotational signal. A controller (24) is coupled to the rotation sensor (63) and determines a characteristic of one or more flaws and FOD (19) on a composite structure (12) in response to the rotation signal.
摘要:
A course material that is applied to a substrate during fabrication of a composite item is inspected by a system that includes a vision assembly. The vision assembly includes an area light, a line generator, a sensor, and an image processor. The area light illuminates an area of the course material. The line generator generates a line of illumination across the area. The sensor captures an image of the area. The image processor analyzes the image. The image processor is configured to identify debris on the course material in response to the area light being activated and the image processor is configured to identify placement aberrations in response to the line generator being activated.
摘要:
A system for inspecting a composite material laid onto a substrate by a lamination machine. An imaging assembly attached to a rear portion of a delivery head of the machine obtains an image of at least a portion of the laid material beneath the imaging assembly. A processor inspects the image to detect a flaw. This system can provide an image of laid tape obtained close to a tape compaction point and can be implemented as a retrofit or as original equipment in lamination machines.
摘要:
An inspection system (9) includes an idler wheel (61) that is coupled to a fabrication system (8) and is in contact with a backing layer (65) of an applied material (64). A rotation sensor (63) monitors the idler wheel (61) and generates a rotational signal. A controller (24) is coupled to the rotation sensor (63) and determines a characteristic of one or more flaws and FOD (19) on a composite structure (12) in response to the rotation signal.
摘要:
Systems and methods for determining a defect characteristic of a composite structure, such as defect density-per-unit area and/or cumulative. In one preferred embodiment, a method for determining a defect characteristic of a composite structure generally includes: determining a first distance from a first reference point of the composite structure to a defect; determining a second distance from a second reference point of the composite structure to the defect; using the first and second distances to establish a reference area of the composite structure; and considering each defect detected within the reference area and producing therefrom a defect characteristic representative of the composite structure.
摘要:
Systems and methods for identifying foreign objects and debris (FOD) and defects during fabrication of a composite structure. The system includes at least one light source positioned to emit light that illuminates a portion of the composite structure with bright field illumination and that also illuminates another portion of the composite structure with dark field illumination. The bright field illumination is reflected differently by defects in the composite structure than from portions of the composite structure that are defect free. The dark field illumination is reflected differently by FOD on the composition structure than from surfaces of the composite structure that are FOD free. The system also includes at least one camera for receiving images of the illuminated portions of the composite structure. The images received by the camera may be processed by a processor which then outputs a response identifying defects and foreign objects and debris based on the images.
摘要:
Systems and methods for in-process vision inspection for automated machines are disclosed. In one embodiment, a head assembly includes a tool moveable over a workpiece and adapted to perform a manufacturing operation on the workpiece, and an inspection unit operatively positioned proximate the tool and moveable with the tool relative to the workpiece. The inspection unit is adapted to perform a vision inspection of a portion of the workpiece simultaneously with the performance of the manufacturing operation on the workpiece. In a particular embodiment, the inspection unit includes a camera adapted to monitor an area including the portion of the workpiece upon which the tool has performed the manufacturing operation, and a processor operatively coupled to the camera and adapted to receive an image from the camera and to analyze the image to determine a presence of a defect within the portion of the workpiece.
摘要:
A flaw and foreign object debris (FOD) detection system (11) for use during fabrication of a structure (12) includes an illumination device (13). The illumination device (13) is configured to be in proximity with a fabrication system (10) and illuminates a portion (18) of the structure (12). The illumination device (13) directs light rays (16) at acute angles relative to the portion (18). A detector (14) monitors the portion (18) and detects FOD in the portion (18) during fabrication of the structure (12) in response to the reflection of the light rays (16) off of the portion (18).
摘要:
A method generally includes electronically accessing positional data defining a defect location on a composite structure, and automatically causing a material placement machine to return to the defect location as defined by the positional data. The method can also include automatically causing the material placement machine to place or lay down material sufficient for repairing a defect at the defect location. Alternatively, the material placement machine may automatically return to a defect location, and then an operator may manually repair the defect at the defect location.
摘要:
Systems and methods for determining an inconsistency characteristic of a composite structure, such as inconsistency density-per-unit area. In one implementation, a method is disclosed for determining an inconsistency characteristic of a composite structure. The method involves determining a first distance from a first reference point of the composite structure to an inconsistency; determining a second distance from a second reference point of the composite structure to the inconsistency; using the first and second distances to establish a reference area of the composite structure; and considering each inconsistency detected within the reference area and producing therefrom an inconsistency characteristic representative of the composite structure.