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Composite material T-shaped stiffened wall plate forming tool and forming method

A technology of reinforced siding and forming tooling, which is applied to other household appliances, household appliances, household components, etc., can solve the problems of large deviation in the size of the outer shape, and achieve the advantages of improving rigidity and strength, accurate positioning and improving process quality. Effect

Pending Publication Date: 2017-06-27
BEIJING AERONAUTIC SCI & TECH RES INST OF COMAC +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Usually, male molds are used on both sides of the "T"-shaped reinforcement. During the forming process, the reinforcement is formed according to the surface of the male mold, and the outer surface follows the shape. Such a panel structure has a large deviation in the size of the outer surface of the rib web.

Method used

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  • Composite material T-shaped stiffened wall plate forming tool and forming method
  • Composite material T-shaped stiffened wall plate forming tool and forming method
  • Composite material T-shaped stiffened wall plate forming tool and forming method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] A composite material T-shaped reinforced panel forming tooling, such as Figure 1-2 As shown, the forming tooling includes a skin forming flat plate 1, a skin forming cover plate 2, a positioning pin 3 and a T-shaped rib forming unit 4 for paving and forming a T-shaped rib; the skin forming cover A rib positioning groove 5 for accurately positioning the T-shaped rib forming unit 4 is provided on the plate 2;

[0040] The rib positioning groove 5 ensures that the relative position of the rib does not deviate, and at the same time ensures that the positioning of a single rib is accurate.

[0041] After the skin forming cover plate 2 and the T-shaped rib forming unit 4 are assembled, they are installed above the skin forming flat plate 1 through the positioning pins 3 .

[0042] The T-shaped rib forming unit 4 includes a rib forming cover plate 6, a left L-shaped forming angle material 7 and a right L-shaped forming angle material 8, and the rib forming cover plate is arr...

Embodiment 2

[0049] A method for forming a composite T-shaped reinforced wallboard, the forming method uses the forming tooling described in Example 1; the main process flow is as follows image 3 As shown, the specific molding method steps are subject to the ones described below.

[0050] The molding method can realize the overall co-curing molding of the composite material T-shaped reinforced wall plate structure; the method reserves rib positioning grooves on the skin forming cover plate to accurately position the ribs, and uses the skin cover plate to make The skin area is evenly compressed, and the rib-shaped cover plate is used to effectively control the dimensional tolerance of the outer surface of the rib web of the wall panel structure.

[0051] The method comprises the steps of:

[0052] (1) Laying and cutting of the prepreg layer: complete the laying and molding of the prepreg layer on the skin forming flat plate to obtain the skin layer, and reserve a margin of 5-10mm around t...

Embodiment 3

[0063] A method for forming a composite T-shaped reinforced panel, said method comprising the following steps:

[0064] (1) Laying and cutting of the prepreg layer: complete the laying and molding of the prepreg layer on the skin forming flat plate to obtain the skin layer, and reserve a margin of 5-10mm around the skin layer;

[0065] (2) Preforming of the left L-shaped unit and the right L-shaped unit: use the left L-shaped forming angle material and the right L-shaped forming angle material respectively to complete the cutting of the left L-shaped unit and the right L-shaped unit prepreg laying material, and reserve 5 -10mm margin;

[0066] (3) Positioning assembly of the skin forming cover: place the skin forming cover on the skin layer, and use positioning pins to position and assemble the skin forming cover;

[0067] (4) Assembly of rib forming cover plate: use the left L-shaped forming angle material and the right L-shaped forming angle material to complete the remaini...

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Abstract

The invention mainly belongs to the field of T-shaped stiffened wall plate forming and particularly relates to a composite material T-shaped stiffened wall plate forming tool and forming method. The forming tool comprises a skin forming slab, a skin forming cover plate, positioning pins and T-shaped rib forming units for making a T-shaped rib be laid, attached and formed; the skin forming cover plate is provided with a rib positioning slot for performing accurate positioning on the T-shaped rib forming units; and the skin forming cover plate and the T-shaped rib forming units are installed above the skin forming slab through the positioning pins after being assembled. By means of the composite material T-shaped stiffened wall plate forming tool and forming method, composite material T-shaped stiffened wall plate co-curing overall forming can be completed, rigidity and strength of an overall large wall plate structure are improved, and the overall process quality of the structure is improved more effectively; and meanwhile, the process preparation cycle is shortened, and the cost is reduced.

Description

technical field [0001] The invention mainly belongs to the field of T-shaped reinforced wall board forming, and in particular relates to a composite T-shaped reinforced wall board forming tool and a forming method. Background technique [0002] At present, composite materials are used in more and more parts of the aircraft, and the advantages of advanced composite materials such as high specific strength, high specific stiffness and designability are used to reduce structural weight and improve aircraft maneuverability or carrying capacity. Composite material reinforced panel structure is composed of composite material ribs and composite material skin, because of its good stiffness, it has become a widely used structural form of composite material fuselage, wing and vertical tail and other components. The commonly used reinforced panels are divided into "T" type reinforced panels, "J" type reinforced panels, "I" type reinforced panels and mixed type reinforced panels accordi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C70/44B29C70/34B29C70/54B29L31/30
CPCB29C70/342B29C70/44B29C70/542B29L2031/3082Y02T50/40
Inventor 丛晶洁
Owner BEIJING AERONAUTIC SCI & TECH RES INST OF COMAC
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