Aircraft structural part drilling and riveting quality control method based on digital twinning

Abstract

The invention provides an aircraft structural part drilling and riveting quality control method based on digital twinning, and the method is characterized in that robot automatic drilling and riveting equipment is installed in an aircraft assembly physical workshop, the equipment can complete the whole process of hole location positioning, drilling, nail feeding and riveting, a digital twinning system corresponding to the physical workshop is established on a computer, and the digital twinning system is connected with the digital twinning system. The automatic drilling and riveting equipment adopts a local area network and a TCP / IP data interface to transmit completed riveting hole center coordinates and riveting quality information to a digital twin system in real time, and through real-time fusion and interaction of a physical workshop and the digital twin system, problem riveting points can be found and remedied in time, and the riveting quality is improved. The problems of monitoring lag of the riveting state, riveting error accumulation and the like are effectively avoided, and therefore the drilling and riveting quality and efficiency of the aircraft structural part in the aircraft assembling process are improved.

Description

technical field [0001] The invention relates to the field of aircraft assembly, in particular to a digital twin-based hole-making and riveting quality control method for aircraft structural parts. Background technique [0002] Digital twin technology can not only realize the interactive integration of physical workshop and virtual workshop, but more importantly, the virtual workshop can make analysis and decision-making based on the production status information of the physical workshop, and in turn guide the physical workshop to make corresponding adjustments and control. Therefore, digital twin is in line with riveting The basic idea of ​​quality control can provide an effective method for realizing the quality control of hole making and riveting of various thin-walled parts in the aircraft assembly process. [0003] The body structure of an aircraft is composed of tens of thousands of parts, and the connection method is mainly riveting. The advantages of riveting are tha...

AI Technical Summary

Problems solved by technology

However, riveting also has its own shortcomings, which are mainly manifested in: uneven stress distribution of riveting joints; large amount of manual labor and low production efficiency; riveting quality is greatly affected by human factors and is difficult to control

[0004] The current patent disclosure and literature data show that: 1) the patent (CN201510522567.X) discloses a method for detecting the surface quality of aircraft skin riveting assembly. On the other hand, the method of collecting skin movement data is used for surface quality detection, but the detection speed is slow, but it cannot realize the timely detection and timely remedy of problem riveting points, and avoid problems such as riveting state monitoring lag and riveting error accumulation; 2) Patent (CN202110481198.X ) discloses an aircraft fuselage surface assembly quality digital detection method and system, in which a fixed mechanical arm is used as a means to use digital detection tools such as a surface quality detector and a tracking three-dimensional scanning unit, combined with motion positioning equipment such as a measuring mechanical arm to realize aircraft The digital inspection of the surface assembly quality of the fuselage, although the detection accuracy is relatively high, cannot provide real-time feedback on the surface assembly quality of the aircraft fuselage.

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