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A digital detection method and system for surface assembly quality of aircraft fuselage

A technology for aircraft fuselage and surface quality, applied in aircraft assembly, aircraft component testing, etc., can solve the problems of high labor intensity, poor precision, and low efficiency, and achieve the effect of ensuring assembly quality and reducing workload.

Active Publication Date: 2022-07-15
CHENGDU AIRCRAFT INDUSTRY GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a digital detection method and system for the surface assembly quality of an aircraft fuselage according to the development needs of the current aviation field, which can effectively realize the digital detection of the concave and convex amount of the nail head of the aircraft fuselage surface and the seam difference of the skin At the same time, the detection results can be projected to the corresponding detection area to realize the traceability of assembly quality and overcome the problems of low efficiency, poor precision and high labor intensity of traditional measurement methods

Method used

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  • A digital detection method and system for surface assembly quality of aircraft fuselage
  • A digital detection method and system for surface assembly quality of aircraft fuselage
  • A digital detection method and system for surface assembly quality of aircraft fuselage

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Embodiment 1

[0042] The present embodiment discloses a method for digitally detecting the surface assembly quality of an aircraft fuselage. As a basic embodiment of the present invention, it is characterized in that it includes pre-detection preparation and detection process implementation;

[0043] The pre-test preparations include the following steps:

[0044] S11, laying out the digital inspection system: including installing the gantry inspection device on the ground, and placing two movable surface quality inspection devices 6 on the ground for inspecting the sides and abdomen of the aircraft fuselage 10; installing the gantry inspection device will have sufficient The high-height fixed gantry 3 is installed on a flat ground, and a linear guide 4 is set on the top of the inner side of the fixed gantry 3. One end of the measuring robot arm I1 is slidably connected to the fixed gantry 3 through the linear guide 4, and the other side of the measuring robot arm I1 is slidably connected. A...

Embodiment 2

[0059] This embodiment discloses a method for digitally detecting the surface assembly quality of an aircraft fuselage. As a preferred embodiment of the present invention, that is, in Example 1, it also includes using a tracking 3D scanning unit to perform manual supplementary measurement; tracking 3D scanning The unit includes an optical tracker 7 and a three-dimensional scanner 8. The positioning of the optical tracker 7 in the aircraft coordinate system is completed through the measurement mark points 5 on the aircraft fuselage 10, and then the three-dimensional scanner 8 is used to align the surface quality detector I2 and the two. Manual supplementary measurement is performed on the measurement area that cannot be covered by the movable surface quality detection device 6 . That is, facing the places that cannot be detected by the surface quality detector I2 and the movable surface quality detection device 6, such as the contact surface between the aircraft fuselage 10 and ...

Embodiment 3

[0064] This embodiment discloses a digital inspection system for the surface assembly quality of an aircraft fuselage. As a basic embodiment of the present invention, it includes an upper computer, a gantry inspection device, a side / abdominal inspection unit, and a transfer vehicle 9; the gantry inspection device includes a measurement The robotic arm I1, the surface quality detector I2 and the fixed gantry 3 installed on the ground, the measuring robotic arm I1 and the surface quality detector I2 are respectively connected to the upper computer for communication; One end of the arm I1 is slidably connected to the fixed gantry 3 through the linear guide 4, and the surface quality detector I2 is installed on the other end of the measuring robot arm I1; The movable surface quality detection device 6 on the abdomen of the aircraft, and the two movable surface quality detection devices 6 are respectively connected to the upper computer in communication;

[0065] In this technical ...

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Abstract

The invention belongs to the technical field of aircraft assembly measurement, and in particular relates to a method and a system for digital detection of the surface assembly quality of an aircraft fuselage. This technical solution is based on digital inspection tools such as surface quality detector I, tracking three-dimensional scanning unit, etc., combined with motion positioning equipment such as measuring manipulator I, to realize digital inspection of the surface assembly quality of the aircraft fuselage, including the amount of concave and convex of the nail head of the connector, the thickness of the The skin to seam step gap has high measurement accuracy and good measurement accessibility, and can project the detection results to the corresponding detection area, ensuring the traceability of the aircraft surface assembly quality.

Description

technical field [0001] The invention belongs to the technical field of aircraft assembly measurement, and in particular relates to a method and a system for digital detection of the surface assembly quality of an aircraft fuselage. Background technique [0002] The surface assembly quality of the aircraft fuselage is mainly determined by the amount of nail head concave and convex formed by the fastener connection and the gap between the skin and the seam step, which has a significant impact on the aerodynamic performance and fatigue life of the aircraft. On the one hand, the amount of bumps on the nail head and the gap between the skin and the seam directly determine the wind resistance coefficient of the aircraft. Excessive wind resistance will not only increase the energy consumption, but also affect the acceleration performance and maneuvering performance of the aircraft, and reduce the cruising speed of the aircraft. . On the other hand, the concave and convex amount of...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B64F5/60B64F5/10
CPCB64F5/60B64F5/10
Inventor 隋少春谢颖喻龙刘顺涛李杰龙安林谯成许博卢大伟陈雪梅陈洪宇申皓杨林志杨冬
Owner CHENGDU AIRCRAFT INDUSTRY GROUP
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