Manual assembly is an important link in the aircraft assembly process. However

due to the variety of assembly parts

complex assembly locations

and numerous assembly processes

the assembly efficiency is low and the assembly quality is difficult to guarantee

which severely affects the quality and efficiency of the overall aircraft assembly. Based on the analysis of tracking registration technology and projector-camera calibration technology in spatial augmented reality auxiliary assembly applications

and on the basis of 3D machine vision technology research

this paper develops a full-process projection-guided auxiliary assembly system with functions of projection information edit

workpiece positioning and guidance information projection. By projecting auxiliary assembly information on the surface of aircraft workpieces

the system can simplify complex assembly processes. It can be seen from the verification experiment that the use of this system can significantly improve the assembly efficiency and assembly quality

and greatly shorten the assembly cycle.