Horizontal tail co-curing forming mold

Abstract

The utility model belongs to the technical field of aircraft manufacturing, and particularly relates to a horizontal tail co-curing forming die which is characterized in that when the horizontal tail co-curing forming die is used, firstly, a skin is laid on a die molded surface, then a beam forming mechanism is installed on the die molded surface, prepreg is laid in the beam forming mechanism, and then the prepreg is formed. And then the rib forming mechanism where the prepreg is laid in advance is fed into the beam forming mechanism and fixed, a vacuum bag is pasted on the outer side of the whole mold and vacuumized, the mold is fed into an autoclave to be cured, demolding is conducted after curing is completed, and the horizontal tail component can be obtained. The horizontal tail component manufactured through the die is formed in a co-curing mode, the components of the horizontal tail do not need to be secondarily connected in a glue joint and / or bolt connection mode, and the structural weight of the horizontal tail is effectively reduced.

Description

TECHNICAL FIELD

[0001] The utility model belongs to aircraft manufacturing technical field especially relates to a flat tail co -curing forming die. BACKGROUND

[0002] In prior art, in order to reduce the structure weight of unmanned plane, improve flight distance, adopt carbon fiber composite material as the main material of unmanned plane flat tail.

[0003] However, in the manufacturing process of unmanned plane flat tail, the frame and thin wall skin of the beam and rib formed respectively are assembled by adhesive connection and bolt connection, and the assembly type structure undoubtedly increases the structure weight of flat tail.

[0004] The co -curing technology of composite material can effectively reduce the secondary connection between the structures of the object, make the integral forming of each structure, and then reduce the weight of the object, based on this, a flat tail co -curing forming die is provided, the co -curing of each structure of flat tail is realized, and the weight of flat tail is reduced. UTILITY MODEL CONTENT

[0005] The utility model aims at providing a flat tail co -curing forming die to solve the above problems.

[0006] To achieve the above object, the utility model provides the following scheme:

[0007] A flat tail co -curing forming die, comprising: mold main body, the upper of mold main body is provided with the mold profile for pasting skin, the beam forming mechanism is detachably connected on the mold profile, the rib forming mechanism is arranged in the beam forming mechanism, the rib forming mechanism is adapted with the beam forming mechanism, and the rib forming mechanism is detachably connected with the beam forming mechanism.

[0008] In the flat tail co -curing forming die of the utility model, the beam forming mechanism includes front beam forming movable block and rear beam forming movable block, the front beam forming movable block and the rear beam forming movable block are arranged in parallel, the front beam forming movable block and the rear beam forming movable block are arranged along the length direction of the mold main body and are located at the opposite sides of the mold profile respectively, the first groove body for front beam forming is formed on the side of the front beam forming movable block towards the rear beam forming movable block, and the second groove body for rear beam forming is formed on the side of the rear beam forming movable block towards the front beam forming movable block.

[0009] The rib forming mechanism comprises a plurality of rib boxes, the rib boxes are located between the first groove body and the second groove body, the rib boxes are matched with the first groove body and the second groove body, and the plurality of rib boxes are arranged at equal intervals along the length direction of the front beam forming movable block / the rear beam forming movable block.

[0010] In the flat tail co-curing forming die, the rib box comprises a hard block, and the outer edge of the hard block is covered with a flexible wrapping layer.

[0011] In the flat tail co-curing forming die, one side of the hard block is detachably connected with a positioning plate, the positioning plate is detachably connected on a rib box fixing plate, and the rib box fixing plate is detachably connected on the top surface of the front beam forming movable block and the rear beam forming movable block.

[0012] In the flat tail co-curing forming die, the two lifting rings located on the same side are respectively arranged close to the two ends of the die main body.

[0013] In the flat tail co-curing forming die, the die main body is provided with a plug pin, both ends of the plug pin extend out of the die main body, and the plug pin is close to the bottom surface of the die main body.

[0014] In the flat tail co-curing forming die, the bottom surface of the die main body is fixedly connected with a plurality of supporting legs, and the plurality of supporting legs are arrayed.

[0015] Compared with the prior art, the flat tail co-curing forming die has the following advantages and technical effects:

[0016] In use, the skin is first laid on the die surface, then the beam forming mechanism is installed on the die surface, the pre-impregnated material is laid in the beam forming mechanism, then the rib forming mechanism with the pre-laid pre-impregnated material is sent into the beam forming mechanism and fixed, the vacuum bag is made on the outside of the whole die and vacuumized, the die is sent into the hot press tank for curing, and the die is demolded after curing, so that the flat tail component is obtained.

[0017] The flat tail component made by the die is formed by co-curing, and the components of the flat tail do not need to be connected again by gluing and / or bolt connection, so that the structure weight of the flat tail is effectively reduced. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed in the embodiments. Obviously, the drawings described below only illustrate some of the embodiments of the present application, and for those skilled in the art, other drawings can also be obtained from these drawings without creative labor.

[0019] Figure 1 It is a schematic view of the overall structure of the present application.

[0020] Figure 2 It is Figure 1 It is a partial enlarged view of A in the figure.

[0021] Figure 3 It is a front view of the present application.

[0022] 1, mold body; 2, positioning plate; 3, mold surface; 4, front beam forming movable block; 5, rear beam forming movable block; 6, rib box fixing plate; 7, rib box; 8, plug; 9, lifting ring; 10, pad; 701, hard block; 702, flexible wrapping layer. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, not all. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0024] In order to make the above-mentioned purposes, features and advantages of the present application more apparent, obvious and easy to understand, the present application will be further described in detail below with reference to the drawings and specific embodiments.

[0025] Referring to Figures 1 to 3 The present application discloses a flat tail co-curing forming die, comprising: a mold body 1, the upper part of the mold body 1 is provided with a mold surface 3 for laying a skin, the mold surface 3 is detachably connected with a beam forming mechanism, the beam forming mechanism is provided with a rib forming mechanism, the rib forming mechanism is matched with the beam forming mechanism, and the rib forming mechanism is detachably connected with the beam forming mechanism.

[0026] The mold surface 3 is also provided with a skin laying line for positioning the skin when laying the skin.

[0027] The mold body 1 comprises an outer frame body, a plurality of hollow grooves are formed in the outer frame body, a first rib plate is fixedly connected to the inside of the outer frame body, the first rib plate is arranged along the length direction of the outer frame body and is located at the middle of the outer frame body, the first rib plate is vertically arranged, a plurality of second rib plates are fixedly connected to the opposite sides of the first rib plate, the second rib plates are fixedly connected to the inner side wall of the outer frame body, the plurality of second rib plates located on the same side are arranged at equal intervals along the length direction of the outer frame body, and the hollow grooves are formed in the first rib plate and the second rib plates.

[0028] In this way, the overall weight of the mold can be effectively reduced under the premise of ensuring the overall structural strength of the mold.

[0029] The mold is modularly designed, simple in structure, convenient to disassemble, small in processing difficulty and high in safety.

[0030] In an optional scheme, the beam forming mechanism comprises a front beam forming movable block 4 and a rear beam forming movable block 5, the front beam forming movable block 4 and the rear beam forming movable block 5 are arranged in parallel, the front beam forming movable block 4 and the rear beam forming movable block 5 are arranged along the length direction of the mold body 1 and are respectively located at the opposite sides of the mold surface 3, a first groove body for front beam forming is formed on one side of the front beam forming movable block 4 facing the rear beam forming movable block 5, and a second groove body for rear beam forming is formed on one side of the rear beam forming movable block 5 facing the front beam forming movable block 4.

[0031] The front beam forming movable block 4 and the rear beam forming movable block 5 are detachably connected to the mold surface 3 in a manner of pin connection / screw connection.

[0032] In an optional scheme, the rib forming mechanism comprises a plurality of rib boxes 7, the rib boxes 7 are located between the first groove body and the second groove body, the rib boxes 7 are matched with the first groove body and the second groove body, and the plurality of rib boxes 7 are arranged at equal intervals along the length direction of the front beam forming movable block 4 / rear beam forming movable block 5.

[0033] In an optional scheme, the rib box 7 comprises a hard block 701, and the outer edge of the hard block 701 is covered with a flexible wrapping layer 702.

[0034] In this way, the arrangement of the hard block 701 can facilitate the fixation of the rib box 7 and the rib box fixing plate 6, and can ensure that the deformation degree of the rib box 7 is within a predetermined range, and the arrangement of the flexible wrapping layer 702 can facilitate the placement of the rib box 7 between the first groove body and the second groove body.

[0035] In an optional scheme, one side of the hard block 701 is detachably connected with a positioning plate 2, the positioning plate 2 is detachably connected to the rib box fixing plate 6, and the rib box fixing plate 6 is detachably connected to the top surface of the front beam forming movable block 4 and the rear beam forming movable block 5.

[0036] In use, firstly, the prepreg is pasted on the outer side of the flexible wrapping layer 702 corresponding to the positions of the skin and the front and rear spars, then the plurality of rib boxes 7 are placed between the front spar forming movable block 4 and the rear spar forming movable block 5, the rib box fixing plate 6 and the hard block 701 are connected through screws by the positioning plate 2, and the rib box fixing plate 6 and the front spar forming movable block 4 and the rear spar forming movable block 5 are connected through screws.

[0037] In an alternative scheme, the mold body 1 is fixed with two lifting rings 9 on the opposite sides, and the two lifting rings 9 on the same side are close to the two ends of the mold body 1.

[0038] In an alternative scheme, the mold body 1 is provided with a plug 8, both ends of the plug 8 extend out of the mold body 1, and the plug 8 is close to the bottom surface of the mold body 1.

[0039] According to the actual use requirements, the mold body 1 is moved or fixed through the plug 8 or the lifting ring 9.

[0040] In an alternative scheme, a plurality of feet 10 are fixed on the bottom surface of the mold body 1, and the plurality of feet 10 are arrayed.

[0041] The feet 10 can effectively prevent the mold body 1 from being in hard contact with the ground, thereby preventing the mold body 1 from being damaged.

[0042] Specific use process:

[0043] Firstly, the skin is pasted on the part in the skin pasting line on the mold surface 3, then the front spar forming movable block 4 and the rear spar forming movable block 5 are fixed on the mold surface 3 in a bolt fixed / pin fixed manner, the prepreg is pasted in the first groove and the second groove, the plurality of rib boxes 7 with the prepreg pasted in advance are placed between the front spar forming movable block 4 and the rear spar forming movable block 5, the rib box fixing plate 6 and the hard block 701 are connected through screws by the positioning plate 2, and the rib box fixing plate 6 and the front spar forming movable block 4 and the rear spar forming movable block 5 are connected through screws, the vacuum bag is pasted on the outer side of the whole mold and vacuumized, the mold is sent into the autoclave for curing, and the mold is demolded after curing, so that the horizontal tail component is obtained.

[0044] In the description of the present application, it should be understood that the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore it cannot be understood as a limitation of the present application.

[0045] The above-described embodiments are merely preferred modes of the present application, and are not intended to limit the scope of the present application, and various modifications and improvements to the technical solutions of the present application made by those of ordinary skill in the art without departing from the design spirit of the present application shall fall within the protection scope of the present application as defined by the claims.

Claims

1. A flat-tail co-curing molding die, characterized in that, include: The mold body (1) has a mold surface (3) for applying the skin on its upper part. A beam forming mechanism is detachably connected to the mold surface (3). A rib forming mechanism is provided inside the beam forming mechanism. The rib forming mechanism is adapted to the beam forming mechanism and is detachably connected to the beam forming mechanism.

2. The flat-tail co-curing molding die according to claim 1, characterized in that: The beam forming mechanism includes a front beam forming movable block (4) and a rear beam forming movable block (5). The front beam forming movable block (4) and the rear beam forming movable block (5) are arranged in parallel. The front beam forming movable block (4) and the rear beam forming movable block (5) are both laid along the length direction of the mold body (1) and are respectively located on opposite sides of the mold surface (3). The front beam forming movable block (4) has a first groove for front beam forming on the side facing the rear beam forming movable block (5), and the rear beam forming movable block (5) has a second groove for rear beam forming on the side facing the front beam forming movable block (4).

3. The flat-tail co-curing molding die according to claim 2, characterized in that: The rib forming mechanism includes multiple rib boxes (7), which are located between the first groove and the second groove. The rib boxes (7) are adapted to the first groove and the second groove. The multiple rib boxes (7) are equally spaced along the length direction of the front beam forming movable block (4) / the rear beam forming movable block (5).

4. The flat-tail co-curing molding die according to claim 3, characterized in that: The rib box (7) includes a hard block (701), and the outer edge of the hard block (701) is covered with a flexible wrapping layer (702).

5. The flat-tail co-curing molding die according to claim 4, characterized in that: A positioning plate (2) is detachably connected to one side of the rigid block (701). The positioning plate (2) is detachably connected to the rib box fixing plate (6). The rib box fixing plate (6) is detachably connected to the top surface of the front beam forming movable block (4) and the rear beam forming movable block (5).

6. The flat-tail co-curing molding die according to claim 1, characterized in that: Two lifting rings (9) are fixed to each of the opposite sides of the mold body (1), and the two lifting rings (9) on the same side are respectively close to the two ends of the mold body (1).

7. The flat-tail co-curing molding die according to claim 1, characterized in that: The mold body (1) is provided with a pin (8), both ends of which extend out of the mold body (1) and the pin (8) is close to the bottom surface of the mold body (1).

8. The flat-tail co-curing molding die according to claim 1, characterized in that: Multiple feet (10) are fixed to the bottom surface of the mold body (1), and the multiple feet (10) are arranged in an array.

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