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Aviation aluminum honeycomb core sandwich panel connecting method based on through hole bush mounting

A sandwich panel and aluminum honeycomb technology, which is applied in the splicing field of aviation aluminum honeycomb sandwich panels based on the installation of through-hole bushings. Easy to overflow to the surface of parts and other problems, to improve the quality of splicing, tight splicing, and reduce trimming

Active Publication Date: 2019-03-08
CHENGDU AIRCRAFT INDUSTRY GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a method for splicing aviation aluminum honeycomb sandwich panels based on the installation of through-hole bushings, aiming to solve the difficulties in installing through-hole bushings and the easy overflow of potting glue to the surface of parts in the splicing of aluminum honeycomb sandwich panels , The problem that it is easy to damage the surface of the part when trimming the through-hole bushing

Method used

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  • Aviation aluminum honeycomb core sandwich panel connecting method based on through hole bush mounting
  • Aviation aluminum honeycomb core sandwich panel connecting method based on through hole bush mounting
  • Aviation aluminum honeycomb core sandwich panel connecting method based on through hole bush mounting

Examples

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Embodiment 1

[0029] A method for splicing aviation aluminum honeycomb sandwich panels based on through-hole bushing installation, which mainly includes the following steps:

[0030] Step 1: First align the aluminum honeycomb sandwich panels 5 to be spliced ​​based on the bushing holes, insert 2~3 through-hole bushings 1 to position and pre-fix the aluminum honeycomb sandwich panels 5 to be spliced, and then use an appropriate amount of The bow clamp clamps and fixes the aluminum honeycomb sandwich panel 5 to be spliced;

[0031] Step 2: Then inject potting glue into the bushing hole of the aluminum honeycomb sandwich panel 5 to be spliced, plug one end of the through-hole bushing 1 with the bushing plug 6, and install the through-hole bushing 1 on the bushing In the sleeve hole, wipe off the potting glue overflowing around the bushing hole on the surface of the aluminum honeycomb sandwich panel 5 to be spliced, and place an equalizing pressure plate on the upper end of the through-hole bus...

Embodiment 2

[0036] This embodiment is further optimized on the basis of embodiment 1. Step A is also included between said step 1 and step 2. Said step A includes the following steps: seal one end of the bushing hole with a blue pressure-sensitive adhesive tape, and The plane of the blue pressure-sensitive tape is flat; insert the through-hole bushing 1 into the bushing hole, mark the through-hole bushing 1 on the other end of the aluminum honeycomb sandwich panel 5 to be spliced, and place the through-hole Bushing 1 is ground to the marked size, and all other through-hole bushings 1 are ground to the marked size. The present invention grinds the through-hole bushing 1 before installing the through-hole bushing 1 so that the size of the through-hole bushing 1 meets the matching accuracy of the aluminum honeycomb sandwich panels 5 to be spliced, preventing the through-hole bushing 1 from being damaged when the through-hole bushing 1 is polished. The surface of the parts of the spliced ​​al...

Embodiment 3

[0039] This embodiment is further optimized on the basis of Embodiment 1 or 2. The step 2 also includes using paper tape for protection, and using paper tape to protect the aluminum honeycomb sandwich to be spliced ​​before injecting the potting compound into the bushing hole The periphery of the bushing hole on the plate 5; said step 3 also includes the use of paper tape for protection, and before the edge of the spliced ​​aluminum honeycomb sandwich panel 5 is edge-sealed with edge-sealing glue, paper tape is used to clip the spliced ​​aluminum honeycomb Both sides of the end face of the core board 5 are protected.

[0040] In the present invention, in step 2, before injecting the potting compound into the bushing hole, paper tape is used to protect the surroundings of the bushing hole, so that the potting compound will not flow to the surface of the aluminum honeycomb sandwich panel 5 to be spliced ​​when it overflows , so that the surface of the spliced ​​aluminum honeycom...

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Abstract

The invention discloses an aviation aluminum honeycomb core sandwich panel connecting method based on through hole bush mounting. The aviation aluminum honeycomb core sandwich panel connecting methodbased on through hole bush mounting comprises the following steps: step 1, pre-mixing to-be-connected aluminum honeycomb core sandwich panels by a through hole bush, and clamping the to-be-connected aluminum honeycomb core sandwich panels by using a cramp frame; step 2, injecting a bush hole with pouring sealant, blocking one end of the through hole bush with a bush plug, mounting the through holebush in the bush hole, wiping the pouring sealant which overflows from the surfaces of the to-be-connected aluminum honeycomb core sandwich panels, and placing a balancing pressure plate at the upperend of the through hole bush; and step 3, after the pouring sealant is cured, taking out the bush plug in the through hole bush, wiping the upper surfaces and the lower surfaces of the to-be-connected aluminum honeycomb core sandwich panels, and sealing the edges of the to-be-connected aluminum honeycomb core sandwich panels by using prepared edge sealing glue. The problems that in connection ofthe aluminum honeycomb core sandwich panels, the through hole bush is difficult to mount, the pouring sealant is easily overflowed out of the surfaces of parts are solved, and the connection quality and efficiency of the aluminum honeycomb core sandwich panels are ensured.

Description

technical field [0001] The invention belongs to the technical field of assembly of aluminum honeycomb sandwich panels for aviation manufacturing, and in particular relates to a method for splicing aviation aluminum honeycomb sandwich panels based on through-hole bushing installation. Background technique [0002] Aluminum honeycomb sandwich panel is a metal composite panel product series developed in combination with composite honeycomb panel technology in the aviation industry. Composed of thick and light aluminum sandwich layers. Due to the special structure of the aluminum honeycomb core, the many closed cells it divides restrict the flow of air in the curtain wall panels synthesized by it, which greatly restricts the transmission of heat and sound waves, so it has high strength, light weight, and high temperature resistance. It is one of the metal bonded structures widely used in aircraft manufacturing due to its excellent properties of corrosion resistance, energy abso...

Claims

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Application Information

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IPC IPC(8): B32B37/14B32B37/12
CPCB32B37/1292B32B37/146
Inventor 吴磊张龙吴利敏彭坚蔡江海
Owner CHENGDU AIRCRAFT INDUSTRY GROUP
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