A wing integrated molding die

Abstract

The utility model relates to a kind of wing integrated forming die, comprising: upper skin forming die and lower skin forming die, upper skin forming die has first forming face, lower skin forming die has second forming face, first forming face and second forming face are detachably buckled to form forming cavity, rib plate installation position is preset in forming cavity;Filler, it is detachably set in forming cavity, filler includes filling part and connecting portion, each filling part is located in the clearance between each rib plate installation position respectively, and shape and the clearance where it is located are adapted, each filling part is separated from each other, connecting portion is located at the edge of the side of upper skin and lower skin not closed, and it is connected with each filling part;Filler is configured to be attached and abutting with the outside wall of each rib plate and the inner wall of upper skin and lower skin. The present application fills forming cavity using filler, which can be used as a male die on one hand, and can fix rib plate for integrated forming on the other hand, and is convenient to take out after forming.

Description

Technical Field

[0001] This utility model relates to the field of aircraft aerodynamic system technology, and in particular to an integrated wing molding mold. Background Technology

[0002] The wing is a core component of aircraft and many other flying vehicles. Due to current demands for lightweight flight equipment, many flight vehicle wings are manufactured using hot-press molding of polymer materials. This wing manufacturing method currently faces the following technical challenges: When manufacturing the upper and lower wing skins, the polymer skin material is individually molded using molds. Then, the individually molded upper and lower skins, along with the internal ribs, are placed into an assembly jig for overall assembly. In this assembly method, the upper and lower skin molds and the assembly jig need to be manufactured separately, which significantly increases manufacturing and labor costs and reduces manufacturing efficiency. Furthermore, the upper and lower skins cannot be integrally molded with the ribs, resulting in an increase in weak points in the wing structure and affecting mechanical performance.

[0003] In summary, there is an urgent need for a mold that can integrally form the upper and lower skins of the wing with the internal ribs in one piece. Utility Model Content

[0004] To address the aforementioned problems, this utility model provides an integrated wing molding mold.

[0005] The technical solution adopted in this utility model is as follows: A one-piece mold for airfoil, comprising: The upper skin forming mold and the lower skin forming mold have a first forming surface and a second forming surface. The first forming surface and the second forming surface can be detachably fastened together to form a forming cavity. The forming cavity has a pre-set rib plate installation position. The filler is detachably disposed in the molding cavity. The filler includes a filling part and a connecting part. Each filling part is located in the gap between the installation positions of each rib and its shape is adapted to the gap. Each filling part is separate from each other. The connecting part is located at the edge of the unclosed side of the upper skin and the lower skin and is connected to each filling part. The filler is configured to be in contact with and abut against the outer wall of each rib and the inner wall of the upper skin and the lower skin.

[0006] In one possible implementation, It also includes a first limiting plate, which is disposed on the side of the connecting part away from the filling part and is fixedly connected to the connecting part; The first molding surface and the second molding surface are each provided with a first limiting groove at the corresponding position of the first limiting plate. The two first limiting grooves can be detachably fastened to form a first limiting cavity. The shape of the first limiting cavity is adapted to the first limiting plate. The first limiting plate can be detachably disposed in the first limiting cavity.

[0007] In the above possible implementations, further, It also includes a second limiting plate, with multiple second limiting plates spaced apart at the edge of the first limiting plate on the side away from the connecting part. The length direction of the second limiting plate is perpendicular to the length direction of the first limiting plate, and the arrangement direction of the multiple second limiting plates is parallel to the length direction of the first limiting plate. A second limiting groove is provided at the corresponding position of the first molding surface and the second molding surface and each of the second limiting plates. The second limiting groove located on the first molding surface and the second limiting groove located at the corresponding position on the second molding surface can be detachably fastened to form a second limiting cavity. The shape of the second limiting cavity is adapted to the shape of the second limiting plate. Each of the second limiting plates can be detachably set in the second limiting cavity at the corresponding position.

[0008] In the above possible implementations, further, The filling part is specifically an air bladder, whose upper and lower surfaces are adapted to the inner wall shapes of the upper and lower skins, respectively. It has a preset expansion volume. When it is in the preset expansion volume, it is in contact with and abuts against the inner walls of the upper and lower skins and the outer walls of each rib. The first forming surface and the second forming surface are both provided with a third limiting groove on the side of the first limiting plate away from the connecting part. The two third limiting grooves can be detachably fastened to form a third limiting cavity. An air inlet is detachably provided in the third limiting cavity. The shape of the third limiting cavity is adapted to the shape of the air inlet. The air inlet has an air inlet end and an air outlet end that are connected to each other. The air outlet end is located in the third limiting cavity. The air inlet end extends out of the upper skin forming mold and the lower skin forming mold. The first limiting plate has a gas channel inside. One end of the gas channel passes through the connecting part and is connected to the airbag, and the other end is connected to the air outlet.

[0009] Furthermore, It also includes clamping blocks, with multiple clamping blocks located on the outer surface of the filling part. Each clamping block is located on both sides of the installation position of each rib and protrudes from the outer surface of the airbag. When the airbag is at the preset inflation volume, the clamping blocks on both sides of the same rib mounting position are in contact with and abut against the outer wall of the rib.

[0010] Furthermore, The upper skin forming mold has a serrated first limiting groove on the edge of the side with the first forming surface. The lower skin forming mold has a second forming surface on one side, and a serrated second limiting groove is provided at the position corresponding to the first limiting groove, and the second limiting groove engages with the first limiting groove.

[0011] The technical solution provided in this application has at least the following technical effects or advantages: The wing integral molding mold provided in this application fills the molding cavity between the upper and lower skin molding molds with infill material. This infill material serves as a male mold for integral molding of the upper and lower skins, and also reinforces and restricts the position of the ribs. By integrally molding the upper and lower skins simultaneously with the ribs, it significantly saves manpower, material resources, and equipment manufacturing costs, and substantially improves manufacturing efficiency. The mechanical strength and performance of the integrally molded wing structure are also enhanced. Furthermore, the various infill parts are uniformly connected by a connecting part located at the root of the wing, on the side where the upper and lower skins are not connected. After the wing molding is completed, the infill parts can be simultaneously removed by pulling out the connecting part, making demolding very convenient and preventing damage to the already formed wing structure. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments of this application or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0013] Figure 1 This is a schematic plan view of the internal structure of the wing integral molding mold provided in Example 1; Figure 2 This is a schematic cross-sectional view of the internal structure of the wing integral molding mold provided in Example 1; Figure 3 for Figure 1 Enlarged structural diagram of the first region in the middle; Figure 4 for Figure 2 Enlarged structural diagram of the second region in the middle; Figure 5 This is a schematic plan view of the internal structure of the wing integral molding mold provided in Example 2; Figure 6 This is a schematic diagram of the combined structure of the filler, the first limiting plate, the second limiting plate, and the air intake interface in the wing integral molding mold provided in Example 2. Figure 7 This is a schematic cross-sectional view of the internal structure of the wing integral molding mold provided in Example 2.

[0014] In the picture: 1-Upper skin forming mold; 2-Lower skin forming mold; 3-Filling part; 301-Filling part; 302-Connecting part; 4-First limiting plate; 5-Second limiting plate; 6-Air inlet; 7-First limiting groove; 8-Second limiting groove; 9-Clamping block; A-First area; B-Second area. Detailed Implementation

[0015] The specific implementation of the present invention will now be described with reference to the accompanying drawings.

[0016] Example 1 like Figures 1-4 As shown, this embodiment provides an integrated wing molding mold, which includes: Upper skin forming mold 1 and lower skin forming mold 2, the upper skin forming mold 1 has a first forming surface and the lower skin forming mold 2 has a second forming surface, the first forming surface and the second forming surface can be detachably fastened to form a forming cavity, and the forming cavity has a pre-set rib plate installation position; The filler 3 is detachably disposed in the molding cavity. The filler 3 includes a filling portion 301 and a connecting portion 302. Each filling portion 301 is located in the gap between the mounting positions of each rib and its shape is adapted to the gap. The filling portions 301 are separate from each other. The connecting portion 302 is located at the edge of the unclosed side of the upper and lower skins and connects to each filling portion 301. The filler 3 is configured to adhere and abut against the outer walls of each rib and the inner walls of the upper and lower skins. In this embodiment, a silicone rubber filler 3 is used, which is formed by cutting and molding a whole piece of silicone rubber to form such a shape. Figures 1-4 The diagram shows multiple filling portions 301 that fit the gaps between the mounting positions of each rib, and a connecting portion 302 connected to the bottom of each filling portion 301.

[0017] Specifically, when manufacturing the wing, the polymer skin material is first placed in the second forming surface of the lower skin forming mold 2; then the filling part 301 of the filler 3 is placed in the second forming surface according to the appropriate contour position; then each rib is placed in the gap of the filling part 301 at the corresponding rib installation position, and the rib is positioned by the filling part 301 and clamped and fixed; then the polymer skin material used for upper skin forming is placed on top of the filling part 301; finally, the first forming surface of the upper skin forming mold 1 is pressed down relative to the second forming surface, and the upper skin forming mold 1 and the lower skin forming mold 2 are fastened and fixed, and the hot pressing process can be carried out.

[0018] After the hot pressing is completed, when the filler 3 needs to be removed, simply pull out the connecting part 302. The connecting part 302 can simultaneously pull each filler part 301 out of the wing after it has been formed, without damaging the wing structure.

[0019] Figure 3 and Figure 4 They are Figure 1 The first area A and Figure 2 A magnified view of the second region B in the middle, as shown below. Figure 3 , 4 As shown, in a preferred embodiment, the device further includes clamping blocks 9. Multiple clamping blocks 9 are disposed on the outer surface of the filling part 301. Each clamping block 9 is located on both sides of the rib mounting position and protrudes from the outer surface of the filling part 301. When the rib is installed at the preset rib mounting position, the clamping blocks 9 on both sides of the rib are in contact with and abut against its outer side wall.

[0020] Setting clamping block 9 can increase the friction between the rib and the filling parts 301 on both sides, further improve the limiting effect, and prevent the rib from shifting due to external force during the wing manufacturing process.

[0021] Example 2 like Figures 5-7 As shown, this embodiment provides an integrated wing molding mold, whose structure is basically the same as that of Embodiment 1, except that: It also includes a first limiting plate 4, which is disposed on the side of the connecting part 302 away from the filling part 301 and is fixedly connected to the connecting part 302; The first molding surface and the second molding surface are each provided with a first limiting groove at the corresponding position of the first limiting plate 4. The two first limiting grooves can be detachably fastened to form a first limiting cavity. The shape of the first limiting cavity is adapted to the first limiting plate 4. The first limiting plate 4 can be detachably disposed in the first limiting cavity. It also includes a second limiting plate 5, with multiple second limiting plates 5 spaced apart at the edge of the first limiting plate 4 away from the connecting part 302. The length direction of the second limiting plates 5 is perpendicular to the length direction of the first limiting plate 4, and the arrangement direction of the multiple second limiting plates 5 is parallel to the length direction of the first limiting plate 4. The first molding surface and the second molding surface are each provided with a second limiting groove at the corresponding position of each second limiting plate 5. The second limiting groove on the first molding surface and the second limiting groove at the corresponding position on the second molding surface can be detachably fastened to form a second limiting cavity. The shape of the second limiting cavity is adapted to the shape of the second limiting plate 5. Each second limiting plate 5 can be detachably set in the second limiting cavity at the corresponding position. The filling part 301 is specifically an airbag, whose upper and lower surfaces are adapted to the inner wall shapes of the upper skin and the lower skin, respectively. It has a preset expansion volume. When it is in the preset expansion volume, it is in contact with and abuts against the inner walls of the upper skin and the lower skin, as well as the outer walls of each rib. The first forming surface and the second forming surface are both provided with a third limiting groove on the side of the first limiting plate 4 away from the connecting part 302. The two third limiting grooves can be detachably fastened to form a third limiting cavity. An air inlet 6 is detachably provided in the third limiting cavity. The shape of the third limiting cavity is adapted to the shape of the air inlet 6. The air inlet 6 has an air inlet end and an air outlet end that are connected to each other. The air outlet end is located in the third limiting cavity, and the air inlet end extends out of the upper skin forming mold 1 and the lower skin forming mold 2. The first limiting plate 4 has a gas channel inside. One end of the gas channel passes through the connecting part 302 and is connected to the air bag, and the other end is connected to the air outlet. When the airbag is at the preset inflation volume, the clamping blocks 9 on both sides of the same rib mounting position are in contact with and abut against the outer wall of the rib.

[0022] Specifically, this embodiment has at least the following superior technical effects compared to Embodiment 1: By replacing the silicone rubber in Example 1 with an airbag in the filling part 301, the preset expansion volume of the airbag can be flexibly adjusted by controlling the air intake and the elasticity of the airbag, thereby obtaining different upper and lower skin thicknesses of the wing according to actual needs. The airbag has elasticity and a certain degree of compressibility, providing better and gentler support for the male mold of the upper and lower skin. It will not damage the composite skin material during hot pressing, and the gas inside the airbag expands due to heat during the hot pressing process, providing stronger support for the inner walls of the upper and lower skin. The elasticity and deformability of the airbag allow it to fill the gaps inside the molding cavity more fully than silicone rubber. After the upper and lower skins and ribs are integrally molded, there are fewer internal defects, the skin thickness is more uniform, and the mechanical properties and mass distribution of the finished wing are more uniform. The airbag can limit the position of the rib plate and also provide good shock absorption, which can prevent the rib plate from shifting due to impact to a certain extent. After the airbag is deflated, its volume is greatly reduced, and it is no longer in contact with the inner walls of the upper and lower skins and the side walls of the ribs, which enables it to be quickly and fully demolded after the thermoforming process is completed. The first limiting plate 4 and the second limiting plate 5 are set to limit the filler 3 in two mutually perpendicular directions. On the one hand, this facilitates quick positioning when placing the filler 3, and on the other hand, it can avoid incorrect rib installation position and incorrect forming of the inner wall of the upper and lower skin due to displacement of the filler 3 during the hot pressing process.

[0023] In a preferred embodiment, the upper skin forming mold 1 has a serrated first limiting groove 7 at the edge of the side with the first forming surface. The lower skin forming mold 2 has a second forming surface on one side, and a serrated second limiting groove is provided at the position corresponding to the first limiting groove 7. The second limiting groove 8 engages with the first limiting groove 7.

[0024] Specifically, this preferred solution is provided with a first limiting groove 7 and a second limiting groove 8 that mesh with each other. When the upper skin forming mold 1 and the lower skin forming mold 2 are engaged with each other, they can provide positioning anchor points, which helps to quickly and accurately position the mold. After positioning, the connection between the upper skin forming mold 1 and the lower skin forming mold 2 is tighter, which helps to maintain the internal temperature and pressure of the forming cavity, and also prevents the upper skin forming mold 1 and the lower skin forming mold 2 from being misaligned.

[0025] The various embodiments in this specification are described in a progressive manner. Similar or identical parts between embodiments can be referred to interchangeably. Each embodiment focuses on its differences from other embodiments. The above embodiments are only used to illustrate the technical solutions of this application and are not intended to limit this application. Although this application 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 or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of this application.

Claims

1. A one-piece wing mold characterized by, include: The upper skin forming mold (1) and the lower skin forming mold (2) are provided. The upper skin forming mold (1) has a first forming surface and the lower skin forming mold (2) has a second forming surface. The first forming surface and the second forming surface are detachably fastened to form a forming cavity. The forming cavity has a rib plate installation position preset in it. The filler (3) is detachably disposed in the molding cavity. The filler (3) includes a filling part (301) and a connecting part (302). Each filling part (301) is located in the gap between the installation positions of each rib and its shape is adapted to the gap. Each filling part (301) is separated from each other. The connecting part (302) is located at the edge of the unclosed side of the upper skin and the lower skin and is connected to each filling part (301). The filler (3) is configured to be in contact with and abut against the outer wall of each rib and the inner wall of the upper skin and the lower skin.

2. The wing integral molding mold according to claim 1, characterized in that, It also includes a first limiting plate (4), which is disposed on the side of the connecting part (302) away from the filling part (301) and is fixedly connected to the connecting part (302); The first molding surface and the second molding surface are each provided with a first limiting groove at the corresponding position of the first limiting plate (4). The two first limiting grooves can be detachably fastened to form a first limiting cavity. The shape of the first limiting cavity is adapted to the shape of the first limiting plate (4). The first limiting plate (4) can be detachably disposed in the first limiting cavity.

3. The wing integral molding mold according to claim 2, characterized in that, It also includes a second limiting plate (5), a plurality of second limiting plates (5) are spaced apart at the edge of the first limiting plate (4) away from the connecting part (302), the length direction of the second limiting plate (5) is perpendicular to the length direction of the first limiting plate (4), and the arrangement direction of the plurality of second limiting plates (5) is parallel to the length direction of the first limiting plate (4). The first molding surface and the second molding surface are provided with a second limiting groove at the corresponding position of each of the second limiting plates (5). The second limiting groove located on the first molding surface and the second limiting groove located at the corresponding position of the second molding surface can be detachably fastened to form a second limiting cavity. The shape of the second limiting cavity is adapted to the shape of the second limiting plate (5). Each of the second limiting plates (5) can be detachably set in the second limiting cavity at the corresponding position.

4. The wing integral molding mold according to claim 2, characterized in that, The filling part (301) is specifically an airbag, whose upper and lower surfaces are adapted to the inner wall shapes of the upper skin and the lower skin, respectively. It has a preset expansion volume. When it is in the preset expansion volume, it is in contact with and abuts against the inner walls of the upper skin and the lower skin, as well as the outer walls of each rib. The first molding surface and the second molding surface are each provided with a third limiting groove on the side of the first limiting plate (4) away from the connecting part (302). The two third limiting grooves can be detachably fastened to form a third limiting cavity. An air inlet (6) is detachably provided in the third limiting cavity. The shape of the third limiting cavity is adapted to the shape of the air inlet (6). The air inlet (6) has an air inlet end and an air outlet end that are connected to each other. The air outlet end is located in the third limiting cavity. The air inlet end extends out of the upper skin forming mold (1) and the lower skin forming mold (2). The first limiting plate (4) has a gas channel inside. One end of the gas channel passes through the connecting part (302) and is connected to the air bag, and the other end is connected to the air outlet.

5. The wing integral molding mold according to claim 4, characterized in that, It also includes clamping blocks (9), and multiple clamping blocks (9) are disposed on the outer surface of the filling part (301). Each clamping block (9) is located on both sides of the respective rib mounting position and protrudes from the outer surface of the airbag. When the airbag is in the preset expansion volume, the clamping blocks (9) located on both sides of the same rib mounting position are in contact with and abut against the outer wall of the rib.

6. The wing integral molding mold according to claim 1, characterized in that, The upper skin forming mold (1) is provided with a serrated first limiting groove (7) at the edge of the first forming surface. The lower skin forming mold (2) has one side with the second forming surface and a serrated second limiting groove at the position corresponding to the first limiting groove (7). The second limiting groove (8) engages with the first limiting groove (7).

Images