Positioning device for butting wing body

Abstract

The invention relates to a positioning device for butting a wing body, which is characterized in that the positioning device comprises three positioners for performing attitude adjustment on a part of an airplane, wherein the first positioner is placed at a support point with maximum bearing pressure on a wing and can do translation motion freely in X, Y and Z directions; the second positioner is placed at a farthest point in the X direction of the wing and can do the translation motion freely in the Y and the Z directions and do driven movement in the X direction; and the third positioner is determined according to the position of gravity center of the part of the airplane, the position of the third positioner needs to enable a connecting part for the part of the airplane to meet strength requirement, and enable the stress on each positioner to be uniform, and the third positioner can do the translation motion freely in the Z direction and do the driven movement in the X and the Y directions. The positioning system does not need multi-axis linkage, thereby simplifying the complexity of the system, simultaneously ensuring the safety and the reliability, reducing the cost, reducing the cost for manufacturing, mounting and measuring, and also reducing the cost of a foundation.

Description

Positioning device for wing body docking technical field The invention relates to the field of aircraft reinstallation, in particular, the invention relates to a positioning system and a positioning method for aircraft installation. Background technique The butt joint assembly of aircraft wing and body is a complex and time-consuming assembly process, and the quality directly affects the flight safety of the aircraft. The traditional assembly process uses a large number of fixed tooling and scaffolding, the assembly cycle is long, the labor intensity of the workers is high, and the assembly quality is low and unstable. In the past ten years, new large aircraft represented by Boeing 777, 787, A340, and A380 have concentratedly reflected the embodiment and development trend of advanced aircraft assembly technology, and one of their characteristics is the extensive use of digital automatic docking systems. The above-mentioned digital automatic docking system is mainly comp...

AI Technical Summary

Problems solved by technology

However, this positioning method also has many disadvantages.

First of all, such a positioning method will make the structure of the positioning system complex

Secondly, more motors are required, higher requirements are placed on the performance of the control system, and higher requirements are placed on the measurement and synchronization of the movement of each axis, all of which increase the cost of the positioning system

In addition, the more controlled degrees of freedom, the more processes that need motion decoupling, which not only increases the complexity of the leveling algorithm, but also increases the problem of destroying the system due to over-constraint caused by algorithm instability or hardware failure

Finally, the existing positioning methods have very high requirements for manufacturing installation, measurement and foundation

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