The Boeing Company

Ronald J Collins

Alan Ray Merkley

Christie Dusty Lagally

Stephan Joel Favilla

Dario I Valenzuela

Christina Michelle Vasquez

Aksel Bode

Joseph D Doyle

Joel T Adriance

Disclosed aircraft wing-to-body join methods include measuring a 3D surface contour of each wing root interface surface of a wing root to form a complete wing root 3D surface profile; measuring a 3D surface contour of each wing stub interface surface of a wing stub to form a complete wing stub 3D surface profile; calculating a virtual fit between the aircraft wing and the aircraft body assembly that defines one or more gaps between the wing root interface surface and the wing stub interface surface; and aligning the aircraft wing to the aircraft body assembly to achieve a real fit consistent with the virtual fit.

Advanced automated process for the wing-to-body join of an aircraft with predictive surface scanning

A double eccentric positioning apparatus uses two equal offset eccentric bushings to accurately position a tool (such as a drill bushing) in two dimensions. Miniature servo motors and precise gearing control the rotation of each eccentric bushing, which controls the direction of the offset vectors. The offset vectors are used to determine the final position of the drill bushing. The desired rotation angles can be mathematically calculated based on desired position. The inner eccentric bushing is located concentric to the offset of the outer eccentric bushing. This allows any position, within a radius of two times the eccentric offset, to be achieved. The use of worm gearing on the eccentric bushings prevents back-driving of the servo motors, due to the lead angle of the worm gears, and the friction between the worm wheel and worm gear.

Double eccentric positioning apparatus

Disclosed aircraft wing-to-body join methods include (a) applying targets to a wing and a body assembly at the respective wing root and wing stub, (b) determining the 3D locations of the targets by photogrammetry, (c) generating 3D surface profiles for the interface surfaces of the wing root and wing stub by combining scans of the interface surfaces, (d) calculating a virtual fit between the wing and the body assembly that defines one or more gaps between the generated 3D surface profiles of the wing root and wing stub, (e) positioning at least three position sensors within the wing root and/or the wing stub, and (f) aligning the wing to the body assembly to achieve a real fit consistent with the calculated virtual fit using feedback from the position sensors. Methods of determining the target locations and/or the 3D surface profiles may utilize a mobile scanning platform.

Methods and apparatus to automatically fabricate fillers are disclosed. An example method includes aligning rigid surface data with flexible surface data, the rigid surface data and the flexible surface data being permitted to overlap when aligned; when aligned, defining the rigid surface data and the flexible surface data based on a same parameter space; calculating a displacement function based on differences between corresponding ones of first points in the flexible surface data and second points in the rigid surface data; determining a modified position of a first one of the first points by modifying the first one of the first points based on a value of the displacement function; calculating a gap between the modified position of the first one of the first points and a second one of the second points; and creating a physical filler to fill a physical gap corresponding to the calculated gap.

Methods and apparatus to automatically fabricate fillers

A double eccentric positioning apparatus uses two equal offset eccentric bushings to accurately position a tool in two dimensions. Miniature servo motors and precise gearing control the rotation of each eccentric bushing, which controls the direction of the offset vectors. The offset vectors are used to determine the final position of the drill bushing. The desired rotation angles can be mathematically calculated based on desired position. The inner eccentric bushing is located concentric to the offset of the outer eccentric bushing. This allows any position, within a radius of two times the eccentric offset, to be achieved. The use of worm gearing on the eccentric bushings prevents back-driving of the servo motors, due to the lead angle of the worm gears, and the friction between the worm wheel and worm gear.

A method for determining characteristics of a shim fittable between first and second bodies, comprising: (a) placing optical targets in respective sets of holes in the first and second bodies; (b) scanning respective surfaces of the first and second bodies using a three-dimensional scanner to acquire point cloud scan data, measured hole vector data and other discrete feature data; (c) processing the point cloud scan data, measured hole vector data and other discrete feature data to derive first deviation values representing the deviation of the surface of the first body from a nominal surface of the first body and second deviation values representing the deviation of the surface of the second body from a nominal surface of the second body; (d) correlating the first deviation values with the second deviation values based on a best fit position of the first body relative to the second body; and (e) computing shim gap values based on the correlated first and second deviation values.

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Brier, WA, United States of America

Ronald J Collins