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Molding method of integral composite material reinforced cylinder, laying tool, curing mold and stringer positioning device

A composite material and positioning device technology, applied in the field of composite material molding, can solve the problems of low pass rate, damage, complicated operation, etc., and achieve the effect of solving the problem of demoulding, improving the pass rate and improving the precision

Active Publication Date: 2015-09-23
AVIC COMPOSITES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantages of the above-mentioned traditional method are: 1. The matching between the stringer and the groove on the punch needs to be very precise; 2. There is a groove in the middle of the hat-shaped stringer, which needs to be filled during laying, and the accuracy of the shape and surface cannot be guaranteed. complex
3. The surface precision of the cylinder is not high; 4. It is very difficult to demould the formed cylinder, which is easy to cause damage and the pass rate is very low

Method used

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  • Molding method of integral composite material reinforced cylinder, laying tool, curing mold and stringer positioning device
  • Molding method of integral composite material reinforced cylinder, laying tool, curing mold and stringer positioning device
  • Molding method of integral composite material reinforced cylinder, laying tool, curing mold and stringer positioning device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0062] The structure of the overall composite material reinforced cylinder is as follows: it is composed of a cylindrical skin and 18 long stringers. The cross-sectional shape of the long stringers is hat-shaped. The inner cylindrical surfaces are bonded as a whole by adhesive film, and all the stringers are evenly distributed along the circumference; the outer diameter of the outer surface of the skin is 3m, the length of the skin is 5m, and the length of the stringers is equal to the length of the skin ;Firstly, the long stringer is laid on the mold and solidified, and the forming steps of the overall composite material reinforced cylinder are:

[0063] 1. Assemble the lay-up mold: connect one end of the central shaft on the support frame of the lay-up mold with the output shaft of the drive seat through a coupling, and install the other end of the central shaft on the support seat through a bearing;

[0064] 2. Adjust the movable mold: adjust the radial position of the mova...

Embodiment 2

[0083] The structure of the overall composite material reinforced cylinder is as follows: it is composed of a cylindrical skin and 36 long stringers. The inner cylindrical surfaces are bonded as a whole by adhesive film, and all the stringers are evenly distributed along the circumference; the outer diameter of the outer surface of the skin is 5m, the length of the skin is 10m, and the length of the stringers is equal to the length of the skin ;Firstly, the long stringer is laid on the mold and solidified, and the forming steps of the overall composite material reinforced cylinder are:

[0084] 1. Assemble the lay-up mold: connect one end of the central shaft on the support frame of the lay-up mold with the output shaft of the drive seat through a coupling, and install the other end of the central shaft on the support seat through a bearing;

[0085] 2. Adjust the movable mold: adjust the radial position of the movable mold on the laying mold, so that the skin of the movable m...

Embodiment 3

[0104] The structure of the overall composite material reinforced cylinder is as follows: it is composed of a cylindrical skin and 64 long stringers. The inner cylindrical surfaces of the skin are bonded as a whole by adhesive film, and all the long stringers are evenly distributed along the circumference; the maximum outer diameter of the outer surface of the skin is 7m, the length of the skin is 15m, and the length of the long stringers is equal to that of the skin length; first, the long stringer is paved and solidified on the mold, and it is characterized in that: the molding steps of the integral composite material reinforced cylinder are:

[0105] 1. Assemble the lay-up mold: connect one end of the central shaft on the support frame of the lay-up mold with the output shaft of the drive seat through a coupling, and install the other end of the central shaft on the support seat through a bearing;

[0106] 2. Adjust the movable mold: adjust the radial position of the movabl...

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Abstract

The invention belongs to a composite material molding technology, and relates to a molding method of an integral composite material reinforced cylinder, a laying tool, a curing mold and a stringer positioning device. The method comprises the molding steps of: assembly of a laying mold; adjustment of a movable mold (6a); sealing of the laying mold; laying of a skin (1); installation of the curing mold; extraction of the laying mold; curing of the skin; adjustment of the stringer positioning device (7); bonding of an adhesive film on a stringer; positioning of the stringer; and curing. The invention proposes the molding method of the integral composite material reinforced cylinder, the laying tool, the curing mold and the stringer positioning device; the appearance surface precision of the cap-shaped stringer and the cylinder is greatly improved; the stringer positioning method is simplified; the demolding difficulty is solved; and the product pass percent is improved.

Description

technical field [0001] The invention belongs to composite material molding technology, and relates to a molding method for an integral composite material reinforced cylinder, a laying tool, a curing mold and a long string positioning device. Background technique [0002] The traditional molding method of composite reinforced cylinder is: forming on a cylindrical punch, first laying and solidifying the stringer, then inserting the stringer into the slot on the punch, filling the hat-shaped stringer with filler The groove in the middle makes the layup surface complete, and finally layup is carried out on the punch to complete the bonding and co-curing of the cylinder. The disadvantages of the above-mentioned traditional method are: 1. The matching between the stringer and the groove on the punch needs to be very precise; 2. There is a groove in the middle of the hat-shaped stringer, which needs to be filled during laying, and the accuracy of the shape and surface cannot be gua...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C70/32B29C70/44B29C70/54B29C33/00
CPCB29C33/00B29C70/32B29C70/44B29C70/54
Inventor 薛向晨陈静梁宪珠曹正华谢富原
Owner AVIC COMPOSITES
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