Self-adaptive mixed connected structure-type rigid-flexible combined rail hole forming system

Abstract

The embodiment of the invention discloses a self-adaptive mixed connected structure-type rigid-flexible combined rail hole forming system, and relates to the technical field of automatic assembly of aircrafts. The self-adaptive mixed connected structure-type rigid-flexible combined rail hole forming system can improve the processing quality and stability during the hole making process. The self-adaptive mixed connected structure-type rigid-flexible combined rail hole forming system comprises a gantry bridge connected to a flexible rail through a plurality of air cylinders, the flexible rail with a vacuum sucker at the bottom, and a movable hole making platform driven by a gear chain. The gantry bridge spans the two sides of a machine body, and the flexible rail is lifted and laid on the surface of the machine body through multiple groups of telescopic cylinders; and multiple groups of movable hole making platforms in parallel regulate the normal direction of a hole making tool tip through four-axis link and stably feed cooperatively, so that high-precision hole making is realized. The self-adaptive mixed connected structure-type rigid-flexible combined rail hole forming system is applied to adsorption and hole making tasks of non-convex curves.

Description

technical field [0001] The invention relates to the technical field of aircraft automatic assembly, in particular to a rigid-flexible track hole-making system of an adaptive mixed-connection structure. Background technique [0002] With the expansion of the domestic civil aviation market, the demand for the aviation manufacturing industry is gradually developing towards multi-variety, small-batch, and rapid production change, which puts forward higher requirements for the development of aircraft manufacturing equipment and the exploration of new process systems. The assembly of aircraft components is the most difficult, most work-intensive, and most complex link in the entire process of aircraft manufacturing. The level of assembly quality directly determines the performance and service life of the aircraft. [0003] The Boeing Company of the United States has developed a flexible track drilling system that is suitable for the drilling task in the docking area of ​​large air...

AI Technical Summary

Problems solved by technology

However, if the vacuum suction cup is fixed on the surface of the fuselage skin, if the overall rigidity of the machined fuselage section is poor, it will inevitably lead to the instability of the system processing process during the hole making task, and dangerous conditions such as knife breakage in severe cases.

And for the fuselage skin whose outer surface is not smooth and smooth, it leads to a flexible track hole-making system, which cannot be adapted to the adsorption and hole-making tasks of some non-convex surfaces.

[0004] The joint enterprise of domestic universities also involves its own scheme, such as: using a flexible track with a rack and

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