Mounting and positioning method in deep repair process of guide plate

Abstract

The invention relates to a mounting and positioning method in a deep repair process of a guide plate. The mounting and positioning method comprises the following successive steps of: a) sampling and scanning an onboard mounting state by adopting a three-dimensional scanner before an original machine guide plate is disassembled; b) performing under-machine surveying and mapping; c) carrying out reverse modeling on the flow guide plate joint to obtain a flow guide plate cementing mold; d) comparing and analyzing the technical state of the flow guide plate joint of the first frame machine and the flow guide plate cementing mold in the step c); e) if the honeycomb core and the honeycomb core are matched with each other in the step d), marking the position of the positioning groove-shaped beam by using a guide plate glue joint mold, then checking the position of the honeycomb core by taking the beam as a reference, marking after the honeycomb core is completely attached to the glue joint mold, and then making positioning holes to position the positions of the skin and the ribs by taking the positions of the honeycomb core and the beam as a reference; f) carrying out phosphoric acid anodic oxidation on the positioned skin and ribs, paving an adhesive, assembling and packaging, and then carrying out autoclave glue joint; and g) assembling the guide plate, checking on a machine and installing for use.

Description

technical field [0001] The invention relates to the technical field of deep repair of deflectors of large transport aircraft, in particular to an installation and positioning method in the process of deep repair of deflectors. Background technique [0002] After many years of flight use, large transport aircraft have frequent failures such as skin or honeycomb corrosion on the deflector surface, skin cracks, cracks, surface pits, and channel beam corrosion, which have exceeded the repair tolerance specified in the overhaul guideline. In order to ensure the normal use of the aircraft, it is necessary to carry out deep repair work on the deflector. During the deep repair process of the deflector, it was found that there was a technical difference between the surface of the original aircraft and the current bonding mold. At the same time, after years of use, the installation joints and profiles of the aircraft were deformed to varying degrees. If the positioning reference is n...

AI Technical Summary

Problems solved by technology

During the deep repair process of the deflector, it was found that there was a technical difference between the surface of the original aircraft and the current bonding mold. At the same time, after years of use, the installation joints and profiles of the aircraft were deformed to varying degrees. If there is no positioning reference, there is a risk that the repaired parts will interfere with other components or even be unable to be installed and used.

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