Metrology system for generating measurements of fuselage sections

Patent metadata

Field	Value
Publication number	US-9927227-B2
Application number	US-201615276746-A
Country	US
Kind code	B2
Filing date	Sep 26, 2016
Priority date	Sep 17, 2014
Publication date	Mar 27, 2018
Grant date	Mar 27, 2018

Abstract

Methods and an apparatus for processing fuselage sections. Measurements of a first fuselage section are generated using a scanning system. The scanning system includes a first scanner and a second scanner. The first scanner generates measurements of a first portion of the first fuselage section and the second scanner generates measurements of a second portion of the first fuselage section. The first fuselage section is held in a cradle system. The measurements of the first portion of the first fuselage section are combined with the measurements of the second portion of the first fuselage section to generate an ensemble of measurements of the first fuselage section. Using the cradle system, one or more of the first fuselage section or a second fuselage section are shaped based on the ensemble of measurements. Using the cradle system, the first fuselage section is joined with the second fuselage section.

First claim

What is claimed is:

1. A method for joining fuselage sections, the method comprising:
generating measurements of a first fuselage section using a scanning system, wherein the scanning system includes a first scanner and a second scanner, wherein the first scanner generates measurements of a first portion of the first fuselage section and the second scanner generates measurements of a second portion of the first fuselage section, wherein the first fuselage section is held in a cradle system;
combining the measurements of the first portion of the first fuselage section with the measurements of the second portion of the first fuselage section to generate an ensemble of measurements of the first fuselage section;
shaping, using the cradle system, one or more of the first fuselage section or a second fuselage section based on the ensemble of measurements; and
joining, using the cradle system, the first fuselage section to the second fuselage section.

2. The method of claim 1 further comprising:
placing targets on an exterior surface of the first fuselage section.

3. The method of claim 1 , wherein generating the measurements comprises:
transmitting a beam of light from the scanning system to the targets;
detecting reflected light from the beam of light; and
generating the measurements of the first fuselage section using the reflected light generated in response to the beam of light.

4. The method of claim 1 further comprising:
sending the ensemble of measurements from the scanning system to a controller;
identifying a current shape of the first fuselage section using the ensemble of measurements;
identifying, using the controller, forces needed to change the current shape of the first fuselage section to a desired shape for joining the first fuselage section to the second fuselage section; and
sending, using the controller, commands to the cradle system to apply the forces to change the current shape of the first fuselage section towards the desired shape.

5. The method of claim 4 , wherein the desired shape is based on at least one of the current shape of the first fuselage section or parameters specified by a design for the first fuselage section.

6. The method of claim 4 , wherein the current shape and the desired shape are contours for the first fuselage section.

7. The method of claim 1 , wherein the first scanner and the second scanner are positioned a distance away from an exterior surface of the first fuselage section such that the exterior surface is free from contact with the scanning system.

8. The method of claim 1 , wherein the scanning system is an optical metrology system and one or more of the first scanner or the second scanner include at least one of a lidar system or a laser scanning system.

9. The method of claim 1 , wherein the first scanner and the second scanner are held in a ring structure circumferentially surrounding the first fuselage section and wherein the ring structure is associated with the cradle system.

10. A method for measuring a fuselage section, the method comprising:
placing targets on an exterior surface of the fuselage section held in a cradle system;
generating measurements of a first portion of the fuselage section using a first scanner;
generating measurements of a second portion of the fuselage section using a second scanner, wherein each of the first scanner and the second scanner is configured to:
transmit a group of beams of light to the targets; and
detect a reflected light from the group of beams of light to generate the measurements of the fuselage section; and

combining the measurements of the first portion of the fuselage section with measurements of the second portion of the fuselage section to generate an ensemble of measurements of the fuselage section.

11. The method of claim 10 , wherein the first scanner and the second scanner are held in a ring structure associated with the cradle system.

12. The method of claim 10 , wherein the fuselage section is a first fuselage section and the ensemble of measurements enables shaping the first fuselage section for joining the first fuselage section to a second fuselage section.

13. The method of claim 10 , further comprising:
identifying a current shape of the fuselage section using the ensemble of measurements; and
identifying a difference between the current shape of the fuselage section and a desired shape for the fuselage section.

14. The method of claim 10 , wherein the first scanner and the second scanner are positioned a distance away from an exterior surface of the fuselage section such that the fuselage section is free from contact with a scanning system.

15. The method of claim 10 , wherein the first scanner and the second scanner comprise a scanning system that is an optical metrology system and the scanner scanning system include at least one of a lidar system or a laser scanning system.

16. A system for joining fuselage sections, the system comprising:
a scanning system configured to generate measurements of a first fuselage section that is held in a cradle system, wherein the scanning system includes a first scanner and a second scanner, wherein the first scanner generates measurements of a first portion of the first fuselage section and the second scanner generates measurements of a second portion of the first fuselage section, and wherein the measurements of the first portion are combined with the measurements of the second portion to generate an ensemble of measurements of the first fuselage section; and
the cradle system configured to:
shape the first fuselage section using the ensemble of measurements; and
join the first fuselage section to a second fuselage section.

17. The system of claim 16 , further comprising a controller that receives the measurements from the scanning system and identifies forces needed to change a current shape of the first fuselage section to a desired shape for connecting the first fuselage section to the second fuselage section and sends commands to the cradle system to apply the forces to change the current shape of the first fuselage section towards the desired shape.

18. The system of claim 16 , wherein the scanning system is an optical metrology system and wherein the scanners include at least one of a lidar system or a laser scanning system.

19. The system of claim 16 , further comprising:
targets placed on an exterior surface of the first fuselage section, wherein the targets are configured to reflect a group of beams of light transmitted from the scanning system.

20. The system of claim 19 , wherein the targets are selected from at least one of a reflective tape, a tooling ball, or a feature on the first fuselage section.

Assignees

• Boeing Co

Inventors

• Hunt Jeffrey H
• Walls Stephen A
• Whelan David Arthur
• Saint Clair Jonathan M

Classifications

• B64F5/10

  Manufacturing or assembling aircraft, e.g. jigs therefor · CPC title

• G01B11/24

  for measuring contours or curvatures · CPC title

• G01S17/66

  Tracking systems using electromagnetic waves other than radio waves · CPC title

• B21D53/92

  other parts for aircraft · CPC title

• G01B11/2518 Primary

  Projection by scanning of the object · CPC title