Rivet assembling method based on augmented reality technology

Abstract

The invention provides a rivet assembling method based on augmented reality technology. A rivet assembling system applying the augmented reality technology is built, common measuring points and positioning mark points are arranged in an assembly area of a to-be-assembled workpiece, the common measuring points and the positioning mark points are used as information sources collected by an augmentedreality projection unit of a laser tracker and the rivet assembling system to construct an overall map by combining a visual SLAM algorithm, and the accuracy of rivet assembling operation assisted bythe augmented reality technology in a large-scale space is ensured. By combining the laser tracker and a camera, the contradiction between the large-scale space requirement and the local positioningaccuracy requirement in the camera positioning process is eliminated, and the accuracy of a virtual image projected on an augmented reality image display is ensured. During assembly, the augmented reality projection unit superimposes a real image in a real environment and a real-time virtual image, each virtual hole position on the virtual image is marked with a corresponding fastener type, each virtual hole position corresponds to an actual hole position on the real image, so that assembly can be guided in real time and the assembly precision is high.

Description

technical field [0001] The invention relates to the aerospace field, in particular to a nail matching method based on augmented reality technology. Background technique [0002] During the aircraft assembly process, a large number of fastener connections between the skin and the frame are involved. With the improvement of aircraft quality, especially the continuous improvement of super maneuverability and stealth performance requirements of military fighter aircraft, more stringent requirements are put forward for the shape accuracy of aircraft. Therefore, it is necessary to strictly control the assembly process related to the shape accuracy of the aircraft. [0003] At present, the main strategy to ensure the accuracy of the aircraft shape is to control the accuracy of the hole-making and spot-face connection process. However, once the precision of the hole-making and spot-sinking connection process is insufficient, it will lead to inconsistencies in the height direction ...

AI Technical Summary

Problems solved by technology

However, this method has the following problems: the guidance information in this projection method is not intuitive enough, it is essentially a demonstration assembly process, it does not have real-time guidance, and the efficiency is low, and it is closer to the traditional method of querying assembly information on paper, making Insufficient assembly precision

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