Co-curing forming tool for cap type stringer stiffened wall plate

Abstract

The utility model discloses a co-curing forming tool for a cap-shaped stringer stiffened wallboard, which further comprises a frame formed by welding square tubes, the frame is further connected with a top template, a left template and a right template, the top template is connected to the upper part of the frame, and the left template and the right template are respectively arranged on two sides of the frame. And the upper portions of the left side template and the right side template are connected to the ends of the top template correspondingly, moving mechanisms are further arranged on the two sides of the frame, and the left side template and the right side template can be driven to move inwards through the moving mechanisms. The moving mechanisms on the two sides of the frame can move the left side template and the right side template, the problem that the releasing stress of a stringer closed angle is large is solved, the wallboard can be released easily, the templates are reset after demolding is completed, operability is improved, and working hours are reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to composite material part forming technical field, in particular to a kind of for with demoulding closed angle cap type stringer stiffened wallboard co-curing forming tool. BACKGROUND

[0002] Since weight reduction can bring higher economic benefits to large aircraft, the amount of composite materials used in the development of aircraft has become a key indicator to measure the advancement and competitiveness of aircraft. Composite stringer stiffened wallboard structure, as a typical integrated structure, can significantly improve aircraft performance and reduce the number of connecting fasteners.

[0003] Composite stringer stiffened wallboard is a relatively complex structure. For such large size and complex structure, tooling is required during the forming process. The selection of tooling materials and the design of tooling structure will greatly affect the internal quality and surface state of composite components.

[0004] Composite stringer stiffened wallboard usually adopts a positive mold co-curing forming process. First, the stringer is laid, and then the stringer, core mold and twist strip are combined on the tooling. Then the skin is laid, sealed and cured. After curing, demolding operation is required.

[0005] During the forming process of the positive mold co-curing forming stringer stiffened wallboard, the stringer is buried in the groove of the tooling, usually with a demolding closed angle, which affects the normal demolding of the wallboard.

[0006] At this time, it is necessary to design a cap type stringer stiffened wallboard co-curing forming tool for easy demolding to avoid stringer closed angle interference during demolding. UTILITY MODEL CONTENTS

[0007] In order to overcome the shortcomings of the prior art, the utility model provides a cap type stringer stiffened wallboard co-curing forming tool.

[0008] To solve the above technical problems, the utility model provides the following technical scheme: a cap type stringer stiffened wallboard co-curing forming tool, including a frame made of square tubes, a top plate, a left side plate and a right side plate are also connected to the frame, the top plate is connected to the upper part of the frame, the left side plate and the right side plate are respectively arranged on both sides of the frame, and the upper edges of the left side plate and the right side plate are connected to both sides of the top plate, and a moving mechanism is arranged at both sides of the frame, which can drive the left side plate and the right side plate to move inward.

[0009] Preferably, the left side plate, the right side plate and the inner side of the top plate are connected with a reinforcing rib, the top plate connects the reinforcing rib and the frame through a connecting angle piece, and the left side plate and the right side plate are connected to both ends of the top plate through connecting belt plates.

[0010] Preferably, the reinforcing ribs of the left and right side plates are also connected with connecting plates.

[0011] Preferably, the moving mechanism is a hand wheel assembly, the hand wheel assembly comprises a hand wheel and a base, the base is connected to the frame, a rotating shaft is further connected to the hand wheel, and the rotating shaft of the hand wheel is rotatably connected to the base, and the end of the rotating shaft of the hand wheel is further rotatably connected with a rotatable guide wheel, and the guide wheel is connected to the connecting plate.

[0012] Preferably, L-shaped connecting pads are further connected between the frame and the left side plate and between the frame and the right side plate, and the two ends of the connecting pad are connected with the connecting plate and the frame by bolts respectively.

[0013] Preferably, an oblong hole is formed in the connecting pad, and a contact block is further connected between the connecting pad and the frame.

[0014] Preferably, a plurality of connecting plates are provided, and the connecting plates are arranged along the length direction of the left and right side plates at intervals, and the number of the connecting plates corresponds to the number of the hand wheel assemblies and the connecting pads respectively.

[0015] Compared with the prior art, the present application has the following advantages:

[0016] 1. The demolding device is provided with a plurality of moving mechanisms on both sides of the frame for driving the left and right side plates to move inward, when demolding is needed, the auxiliary materials are removed first, then the operator enters the frame, loosens the bolts between the connecting pad and the frame, removes the connecting band plates between the left and right side plates and the top plate, and rotates the hand wheels synchronously, so that the left and right side plates can move inward synchronously to form a demolding space for the long bars on both sides of the wallboard, and the wallboard can be demolded by force upward.

[0017] 2. The inner wall of the top plate is further provided with a plurality of horizontal and vertical reinforcing ribs, so that the top plate can be connected to the upper part of the frame through a plurality of connecting angle pieces, the top plate connected to the upper part of the frame is arc-shaped, and the two ends of the top plate are further connected with connecting band plates, that is, one end of the connecting band plate on the left side is connected with the top plate, and the other end is connected with the left side plate, one end of the connecting band plate on the right side is connected with the other end of the top plate, and the other end is connected with the right side plate, so that a hat-shaped long bar co-curing tool can be formed by assembling and assembling, and the top plate, the left side plate and the right side plate are independent, and each plate can be installed in place and adjusted flexibly to ensure that the state meets the requirements.

[0018] 3、The hand wheel arranged at the frame rotates synchronously with the rotating shaft fixed on the hand wheel, and the guide wheel does not rotate. The hand wheel assembly can drive the left side mold plate and the right side mold plate to move inward, which is suitable, easy to operate and high in stability.

[0019] 4、The connecting plate is connected to the horizontal and vertical reinforcing ribs on the inner side of the left side mold plate or the right side mold plate by welding, thereby increasing the connection strength. The connecting plate is provided with a plurality of connecting plates which are evenly spaced and welded on the left side mold plate and the right side mold plate. In this way, it is convenient to connect multiple hand wheel assemblies and connecting pads. Each hand wheel assembly and connecting pad is connected to the connecting plate, and connecting multiple connecting pads can facilitate the connection of the hand wheel assembly and the connecting pad, increase the connection tightness and stability between the hand wheel assembly, the connecting pad and the left side mold plate and the right side mold plate, and multiple hand wheel assemblies move the left and right side mold plates synchronously, thereby improving the stability of moving the left and right side mold plates. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is a structure schematic diagram of the hat-shaped long stringer stiffened wallboard co-curing forming tool;

[0021] Figure 2 It is a structure schematic diagram of the hat-shaped long stringer stiffened wallboard co-curing forming tool;

[0022] Figure 3 It is a structure schematic diagram of the hat-shaped long stringer stiffened wallboard co-curing forming tool;

[0023] Figure 4 It is a structure schematic diagram of the hat-shaped long stringer stiffened wallboard co-curing forming tool;

[0024] Figure 5 It is a structure schematic diagram of the hat-shaped long stringer stiffened wallboard co-curing forming tool;

[0025] Figure 6 It is a structure schematic diagram of the hat-shaped long stringer stiffened wallboard co-curing forming tool;

[0026] Figure 7 It is a structure schematic diagram of the hat-shaped long stringer stiffened wallboard co-curing forming tool;

[0027] 1, frame; 2, top mold plate; 3, left side mold plate; 4, right side mold plate; 5, moving mechanism; 6, reinforcing rib; 7, connecting angle piece; 8, hand wheel; 9, base; 10, rotating shaft; 11, guide wheel; 12, connecting pad; 13, connecting plate; 14, long circular hole; 15, connecting belt plate. DETAILED DESCRIPTION

[0028] The technical scheme of the utility model is illustrated below by specific embodiments. Figures 1-7

[0029] Embodiment:

[0030] As shown in Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7 , the present hat-shaped stringer wallboard co-curing forming tool includes a frame 1 made of square tube welding, and a top plate 2, a left side plate 3 and a right side plate 4 are further connected to the frame 1, the top plate 2 is connected to the upper part of the frame 1, the left side plate 3 and the right side plate 4 are respectively arranged on the two sides of the frame 1, and the upper parts of the left side plate 3 and the right side plate 4 are respectively connected to the two side edges of the top plate 2, a moving mechanism 5 is further arranged on the two sides of the frame 1, and the left side plate 3 and the right side plate 4 can be driven to move inward through the moving mechanism 5; a reinforcing rib 6 is further arranged on the inner side of the top plate 2, and the reinforcing rib 6 is connected together with the frame 1, the left side plate 3, the right side plate 4 and the top plate 2 are connected, a connecting strip plate 15 is arranged on the inner side of the connection, and the connecting strip plate 15 is respectively connected to the top plate 2, the left side plate 3 and the right side plate 4; the inner sides of the left side plate 3, the right side plate 4 and the top plate 2 are all connected with the reinforcing rib 6, and a plurality of connecting plates 13 are further connected to the reinforcing rib 6 of the left side plate 3 and the right side plate 4; the moving mechanism 5 is a hand wheel 8 assembly, the hand wheel 8 assembly includes the hand wheel 8 and a base 9, the base 9 is connected to the frame 1, a rotating shaft 10 is further connected to the hand wheel 8, the rotating shaft 10 of the hand wheel 8 is rotatably connected to the base 9, an end of the rotating shaft 10 of the hand wheel 8 is further rotatably connected with a rotatable guide wheel 11, and the guide wheel 11 is connected to the connecting plate 13; an L-shaped connecting cushion block 12 is further connected between the frame 1 and the left side plate 3 and between the frame 1 and the right side plate 4, and the two ends of the connecting cushion block 12 are respectively connected to the connecting plate 13 and the frame 1 through bolts; a long circular hole 14 is formed in the connecting cushion block 12, and a contact block is further connected between the connecting cushion block 12 and the frame 1; a plurality of connecting plates 13 are arranged, and the connecting plates 13 are arranged along the length direction of the left side plate 3 and the right side plate 4.

[0031] When demolding, first remove the auxiliary materials, and pull out the core mold installed in the frame 1, the operator can enter the inside of the middle frame 1, loosen the bolts between the connecting cushion block 12 and the frame 1, and remove the connecting strip plate 15 between the left side plate 3 and the top plate 2 and the connecting strip plate 15 between the right side plate 4 and the top plate 2.

[0032] ​In this way, the left side mold plate 3 and the right side mold plate 4 can be moved, and then by synchronously rotating the handle 8, the left side mold plate 3 and the right side mold plate 4 can be synchronously moved inward, and the two sides of the hat-shaped longeron are given space, and the longeron can be forced to be demolded upward.

[0033] When the left side mold plate 3 and the right side mold plate 4 are moved inward, the left side mold plate 3 and the right side mold plate 4 on the two sides are moved transversely towards the central symmetry plane, and after the part is solidified, the left side mold plate 3 and the right side mold plate 4 are moved transversely towards the central symmetry plane, and the moving distance ensures that all the hat-shaped longerons have sufficient demolding space. This can effectively play a space-giving role, i.e. avoiding the interference area and the demolding closed angle area, and can ensure the feasibility and stability of demolding.

[0034] Before demolding, the left side mold plate 3 and the right side mold plate 4 can be disassembled, and then the corresponding machining mold plate, i.e. the mold plate with machining grooves, is replaced, so as to realize the machining of the part in the mold.

[0035] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A tooling for hat stringer-stiffened panel co-curing forming, comprising a frame made of square tube welding, characterized in that, A top die plate, a left side die plate and a right side die plate are further connected to the frame, the top die plate is connected to the upper portion of the frame, the left side die plate and the right side die plate are respectively arranged at the two sides of the frame, the upper edges of the left side die plate and the right side die plate are connected to the two sides of the top die plate, and the moving mechanism is further arranged at the two sides of the frame, and the left side die plate and the right side die plate can be driven to move inwardly through the moving mechanism.

2. The tooling for hat stringer-stiffened panel co-curing molding of claim 1, wherein: The left side die plate, the right side die plate and the top die plate are all connected with the reinforcing ribs at the inner sides thereof, the top die plate is connected with the frame through the connecting angle sheet, and the left side die plate and the right side die plate are respectively connected to the two ends of the top die plate through the connecting belt plates.

3. The tooling for hat stringer-stiffened panel co-curing molding of claim 2, wherein: The reinforcing ribs of the left side die plate and the right side die plate are further connected with the connecting plates.

4. The tooling for hat stringer-stiffened panel co-curing molding of claim 3, wherein: The moving mechanism is a hand wheel assembly, the hand wheel assembly comprises a hand wheel and a base, the base is connected to the frame, a rotating shaft is further connected to the hand wheel, the hand wheel rotating shaft is rotatably connected to the base, and the end of the hand wheel rotating shaft is further rotatably connected with a rotatable guide wheel, and the guide wheel is connected to the connecting plate.

5. The tooling for hat stringer-stiffened panel co-curing molding of claim 4, wherein: L-shaped connecting pads are further connected between the frame and the left side die plate and between the frame and the right side die plate, and the two ends of the connecting pad are respectively connected with the connecting plate and the frame through bolts.

6. The tooling for hat stringer-stiffened panel co-curing molding of claim 5, wherein: Long circular holes are formed in the connecting pad, and a contact block is further connected between the connecting pad and the frame.

7. The tooling for hat stringer-stiffened panel co-curing molding of claim 6, wherein: The number of the connecting plates is several, the connecting plates are arranged along the length direction of the left side die plate and the right side die plate, and the number of the connecting plates corresponds to the number of the hand wheel assemblies and the connecting pads one by one.

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