Liquid forming stiffened wallboard forming process equipment

Abstract

The utility model relates to liquid forming stiffened wallboard forming process equipment. The liquid forming stiffened wallboard forming process equipment comprises a supporting seat, two skin positioning blocks, two stringer positioning blocks, a plurality of stringer core molds and a plurality of skin cover plates, the two skin positioning blocks are symmetrically fixed on the supporting seat; the two stringer positioning blocks are symmetrically fixed to the supporting base, the two stringer positioning blocks and the two skin positioning blocks are connected in a closed mode to form a frame structure, and a dry fiber skin is placed in the frame structure. The plurality of stringer core molds are used for clamping a dry fiber stringer and then placing the dry fiber stringer on a dry fiber skin, and each stringer core mold is composed of two L-shaped core molds which are arranged oppositely; the plurality of skin cover plates are used for covering the dry fiber skin among the plurality of dry fiber stringers. When the process equipment is used for manufacturing the stiffened wall plate, integrated forming of the dry fiber stringer and the dry fiber skin can be achieved, the connecting quality of the stringer and the skin is guaranteed, then the overall quality of the stiffened wall plate is guaranteed, meanwhile, secondary curing is not needed, and the manufacturing efficiency of the stiffened wall plate is greatly improved.

Description

Technical Field

[0001] This utility model belongs to the field of composite material technology, and in particular relates to a liquid molding reinforced wall panel molding process equipment. Background Technology

[0002] Currently, in the field of aerospace manufacturing, carbon fiber resin composite materials (hereinafter referred to as composite materials) are the preferred choice for manufacturing fuselage and wing panel parts for passenger aircraft. The vast majority of composite material raw materials for these panels are in filament or strip form. These raw materials are processed into the required panel parts through manufacturing processes such as filament laying, strip laying, hand laying, and high-temperature curing. The typical structure of panel parts generally consists of a T-shaped stringer (T-shaped reinforcing rib) and a strip-shaped skin bonded together. The process uses either a "dry stringer + wet skin" or "wet stringer + dry skin" route, and is manufactured using equipment matching the process route. Specifically, in the "dry stringer + wet skin" route, the stringer is pre-cured, while the skin is bonded to the stringer during the curing process; in the "wet stringer + dry skin" route, the skin is pre-cured, while the stringer is bonded to the skin during the curing process.

[0003] The existing process has the following problems: the stringers and skin cannot be molded as a single piece and need to be glued together. However, the glued area is prone to glue quality problems, which affects the overall quality of the stiffened panel. At the same time, the stringers or skin need to be cured twice, using autoclave equipment at least twice. This also prolongs the manufacturing cycle, reduces the manufacturing efficiency of parts, and increases the risk of parts being scrapped. Utility Model Content

[0004] The main objective of this invention is to provide a liquid forming reinforced wall panel forming process equipment, which can effectively solve the problems in the background technology.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A liquid forming reinforced wall panel forming process equipment, including

[0007] Support base;

[0008] Two skin positioning blocks are symmetrically fixed on the support base. One side of the skin positioning block has several glue injection holes, and the other side of the skin positioning block has several glue outlet holes.

[0009] Two stringer positioning blocks are symmetrically fixed on the support base. The two stringer positioning blocks and the two skin positioning blocks are closedly connected to form a frame structure. The frame structure is used to place the dry fiber skin.

[0010] Several stringer core molds are used to clamp the dry fiber stringers and place them on the dry fiber skin. The stringer core molds are composed of two L-shaped core molds arranged opposite each other.

[0011] Several skin covers are used to cover the dry fiber skin between several of the dry fiber stringers.

[0012] Preferably, both ends of the two L-shaped core molds are provided with connecting holes for connection by bolts.

[0013] Preferably, the two stringer positioning blocks are provided with several pairs of insertion slots for insertion of the two ends of the stringer core mold.

[0014] Preferably, the glue injection hole is connected to a glue injection tube, and the glue outlet hole is connected to a glue outlet tube.

[0015] Preferably, the bottom of the support base is provided with rollers.

[0016] This utility model provides a liquid forming reinforced wall panel forming process equipment, which has the following beneficial effects:

[0017] 1. By using this process and equipment to manufacture reinforced wall panels, it is possible to achieve integrated molding of dry fiber stringers and dry fiber skin, ensuring the connection quality between stringers and skin, thereby ensuring the overall quality of the reinforced wall panels. At the same time, secondary curing is not required, which greatly improves the manufacturing efficiency of reinforced wall panels.

[0018] 2. Several pairs of insertion slots are correspondingly opened on the two stringer positioning blocks for the insertion of the two ends of the stringer core mold. The insertion slots are adapted to the two ends of the stringer core mold, which can accurately position the stringer core mold, ensure the accurate position of the dry fiber stringer, and also avoid the stringer displacement during high temperature and high pressure curing. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the process equipment of this utility model;

[0020] Figure 2 This is a cross-sectional view of the process equipment of this utility model;

[0021] Figure 3 This utility model Figure 2 Enlarged view of point B in the middle;

[0022] Figure 4 This utility model Figure 1 Enlarged view of point A in the middle.

[0023] In the diagram: 1. Support base; 2. Skin positioning block; 21. Injection hole; 22. Glue outlet hole; 3. Long stringer positioning block; 31. Insertion groove; 4. Long stringer core mold; 41. Connection hole; 5. Skin cover plate; 6. Roller; 100. Dry fiber skin; 200. Dry fiber long stringer. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings.

[0025] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0026] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0027] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the stated features. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified. Furthermore, the terms "installed," "connected," and "linked" should be interpreted broadly; for example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0028] Example

[0029] Reference Figure 1-4 A liquid forming reinforced wall panel forming process equipment, including

[0030] Support 1;

[0031] Two skin positioning blocks 2 are symmetrically fixed on the support base 1. A number of glue injection holes 21 are provided through the side of one side of the skin positioning block 2, and a number of glue outlet holes 22 are provided through the side of the other side of the skin positioning block 2.

[0032] Two stringer positioning blocks 3 are symmetrically fixed on the support base 1. The two stringer positioning blocks 3 and the two skin positioning blocks 2 are closedly connected to form a frame structure. The frame structure is used to place the dry fiber skin 100.

[0033] Several stringer core molds 4 are used to clamp the dry fiber stringer 200 and place it on the dry fiber skin 100. The stringer core mold 4 is composed of two L-shaped core molds arranged opposite each other.

[0034] Several skin cover plates 5 are used to cover the dry fiber skin 100 between several of the dry fiber stringers 200.

[0035] This utility model also provides a liquid forming reinforced wall panel forming process, which uses the above-mentioned process equipment and includes the following steps:

[0036] S1: Fix two skin positioning blocks 2 and two stringer positioning blocks 3 on the support base 1. The two stringer positioning blocks 3 and the two skin positioning blocks 2 are closed to form a frame structure. Place the laid dry fiber skin 100 into the frame structure. The dry fiber skin 100 is a rectangular planar structure made of dry fiber.

[0037] S2: The laid-out stringer dry fiber lay-up sheet is pressed into an L-shaped sheet by a diaphragm. Two L-shaped sheets are combined to form a T-shaped dry fiber stringer 200. The dry fiber stringer 200 is clamped by the stringer core mold 4 and placed on the dry fiber skin 100. The dry fiber skin 100 and several dry fiber stringers 200 are combined to form a reinforced wall panel preform.

[0038] S3: Several skin cover plates 5 are placed on the dry fiber skin 100 between several dry fiber stringers 200 to cover the dry fiber skin 100 between the dry fiber stringers 200. Thus, the stiffened wall panel preform is wrapped by the combination of skin positioning block 2, stringer positioning block 3, stringer core mold 4 and skin cover plate 5.

[0039] S4: Make a bag and connect the injection hole 21 to the injection device. Send it into the oven for high-pressure injection. The resin fully impregnates the fiber, fills the gaps between the fibers, and forms a uniform composite material structure. After curing, the resin undergoes a chemical reaction and gradually hardens, so that the fiber and resin are tightly bonded together to obtain an integral injection-molded reinforced wall panel.

[0040] By using this process and equipment to manufacture reinforced wall panels, the dry fiber stringer 200 and dry fiber skin 100 can be integrally formed, ensuring the connection quality between the stringer and the skin, thereby ensuring the overall quality of the reinforced wall panel. At the same time, secondary curing is not required, which greatly improves the manufacturing efficiency of reinforced wall panels.

[0041] In one specific implementation, several pairs of insertion slots 31 are correspondingly provided on the two stringer positioning blocks 3 for the insertion of the two ends of the stringer core mold 4. The insertion slots 31 are adapted to the two ends of the stringer core mold 4, which can accurately position the stringer core mold 4, ensure the accurate position of the dry fiber stringer 200, and also avoid the stringer shifting during high temperature and high pressure curing.

[0042] In one specific implementation, both ends of the two L-shaped core molds are provided with connection holes 41 for bolt connection. After the two L-shaped core molds are bolted together, the dry fiber stringer 200 can be clamped.

[0043] In one specific implementation, the glue injection hole 21 is connected to a glue injection tube, and the glue outlet hole 22 is connected to a glue outlet tube, which facilitates glue injection and glue outlet.

[0044] In one specific implementation, the bottom of the support base 1 is provided with rollers 6 to facilitate the overall movement of the process equipment.

[0045] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A liquid molding reinforced wall panel molding process equipment, characterized in that: include Support base; Two skin positioning blocks are symmetrically fixed on the support base. One side of the skin positioning block has several glue injection holes, and the other side of the skin positioning block has several glue outlet holes. Two stringer positioning blocks are symmetrically fixed on the support base. The two stringer positioning blocks and the two skin positioning blocks are closedly connected to form a frame structure. The frame structure is used to place the dry fiber skin. Several stringer core molds are used to clamp the dry fiber stringers and place them on the dry fiber skin. The stringer core molds are composed of two L-shaped core molds arranged opposite each other. Several skin covers are used to cover the dry fiber skin between several of the dry fiber stringers.

2. The equipment for forming a liquid-formed stiffened wall panel according to claim 1, characterized in that: Both ends of the two L-shaped core molds are provided with connection holes for connection by bolts.

3. The equipment for forming a liquid-formed reinforced wall panel according to claim 1, characterized in that: Several pairs of insertion slots are correspondingly opened on the two stringer positioning blocks for insertion at both ends of the stringer core mold.

4. The equipment for forming a liquid-formed reinforced wall panel according to claim 1, characterized in that: The glue injection hole is connected to a glue injection tube, and the glue outlet hole is connected to a glue outlet tube.

5. The equipment for forming a liquid-formed reinforced wall panel according to claim 1, characterized in that: The bottom of the support base is equipped with rollers.

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