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Fixing method for honeycomb core-carbon pipe combination part

A honeycomb core and assembly technology, applied in the direction of clamping, metal processing mechanical parts, supports, etc., can solve the problems that the tape cannot provide sufficient holding strength, the deformation and tearing of the honeycomb core, and the difficulty in disassembling and cleaning parts. Achieve the effect of shortening preparation time, reducing local deformation and tearing, and avoiding tape detachment

Inactive Publication Date: 2020-01-03
CHENGDU AIRCRAFT INDUSTRY GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the double-sided tape has the following problems: first, the adhesive strength of the tape is limited, especially compared with the large cutting force when processing carbon tubes, the tape cannot provide sufficient holding strength; second, when bonding and peeling the tape, manual operation is inevitable It will cause local deformation and tearing of the honeycomb core grid; finally, the processing preparation time is longer, and after the parts are fixed, the clamping adjustment is difficult, and the clamping accuracy is also difficult to guarantee
Although the single-sided tape plus vacuum adsorption method overcomes the problem of difficult clamping and adjustment when the double-sided tape is held, it still has limited bonding strength, poor holding reliability, and local deformation and tearing of the honeycomb core.
The main problem of the polyethylene glycol bonding method is that: due to the good adhesion of polyethylene glycol, and the aramid paper honeycomb is not suitable for contact with water and oil and other substances, it is very difficult to disassemble and clean the parts. It is also easy to cause quality problems such as tearing and deformation of the honeycomb core

Method used

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  • Fixing method for honeycomb core-carbon pipe combination part
  • Fixing method for honeycomb core-carbon pipe combination part
  • Fixing method for honeycomb core-carbon pipe combination part

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] The present invention is a kind of holding method that is used for honeycomb core-carbon tube assembly, and the steps are:

[0035] Step 1. Check the blank 3 of the honeycomb core-carbon tube assembly, and clean the bottom surface of the part with absolute alcohol;

[0036] Step 2. Lay the dry peelable cloth 1 on the fixture of the flat plate, then bond the adhesive film 2 to the dry peelable cloth, and finally place the honeycomb core-carbon tube assembly blank 3 on the adhesive film to realize the Preliminary combination of peeling cloth-adhesive film-honeycomb core-carbon tube assembly;

[0037] Step 3. Place the laminated peelable cloth-adhesive film-honeycomb core-carbon tube assembly in a high-temperature-resistant vacuum bag. After vacuuming, send it to an autoclave for curing, so that the adhesive film is partially melted and bonded. Adhere to the side wall of the honeycomb core cell, and then fully cool to room temperature, so that the honeycomb core-carbon tu...

Embodiment 2

[0045] Such as figure 1 , is the blank of the carbon tube assembly, which is composed of a carbon tube 6 with a diameter D of Ф16, and a paper honeycomb core 7, and the two are connected by the MA562 (EF562) foam material through the two. Explanation:

[0046] Step 1. Check the blank of the honeycomb core-carbon tube assembly to confirm that there is no tear, indentation, scratch, deformation, or degumming, and use absolute alcohol to clean the holding surface of the part, that is, the bottom surface of the blank of the honeycomb core-carbon tube assembly

[0047] Step 2. Lay the dry peelable cloth 1 made of Diatex 1500 ev6 on the fixture of the flat plate, then bond the FM300K.05 adhesive film 2 on the dry peelable cloth, and finally combine the honeycomb core-carbon tube The piece blank is placed on the adhesive film to realize the preliminary combination of peelable cloth-adhesive film-honeycomb core-carbon tube assembly;

[0048] Step 3. Place the laminated peelable clot...

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Abstract

The invention discloses a fixing method for a honeycomb core-carbon pipe combination part. The fixing method is used for fixing the honeycomb core-carbon pipe combination part. In the process of processing the honeycomb core-carbon pipe combination part, firstly, the fixing end face of a honeycomb core-carbon pipe combination part workblank is cleaned, a dry strippable cloth and adhesive film areused for gumming curing on the fixing face of a honeycomb core, then the bottom faces of a carbon pipe and a part which are located on the honeycomb core-carbon pipe combination part are quickly clamped and positioned on a vacuum milling clamp with a positioning pin, finally, the part is fixed to a tool through vacuum suction, and the honeycomb core-carbon pipe combination part is reliably and quickly fixed. By means of the the fixing method, the part is conveniently clamped and detached and reliably fixed, and accordingly the quality and efficiency of processing the honeycomb core-carbon pipecombination part are improved.

Description

technical field [0001] The invention relates to the processing technology of a honeycomb core-carbon tube assembly and belongs to the field of mechanical processing. Background technique [0002] With the development of aviation equipment technology, a new type of honeycomb core has emerged in the family of honeycomb core materials: honeycomb core-carbon tube composite material, which has all the excellent properties of honeycomb core materials, while using carbon tubes as honeycomb core parts assembly When the positioning hole is used, it not only plays a connecting role, but also avoids the defects caused by making holes on the flexible material of the honeycomb core material. However, when processing this material, affected by the material properties, the cutting force in the processing process is much greater than that of the conventional honeycomb core. Therefore, the parts are often detached from the adhesive tape due to unreliable holding of the parts, resulting in qu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23Q3/08
CPCB23Q3/088
Inventor 袁信满刘超亮张也罗育果黄明聪张桂何莲黄思思
Owner CHENGDU AIRCRAFT INDUSTRY GROUP
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