Thin-wall composite material wing rib forming die

Abstract

The utility model relates to the technical field of wing rib forming dies, and discloses a thin-wall composite material wing rib forming die which comprises a forming middle die, a forming lower die and a forming top die, the forming top die and the forming lower die are located on the upper side and the lower side of the forming middle die respectively, and a forming hole is formed in the inner side of the forming middle die. A first check block is arranged at the bottom of the top forming die, a first pressing block is arranged at the bottom of the first check block, a supporting and shaping assembly is arranged at the top of the lower forming die, and a forming splitting mechanism is arranged among the middle forming die, the lower forming die and the top forming die. According to the thin-wall composite material wing rib forming mold, the middle forming mold body, the lower forming mold body and the top forming mold body can be quickly disassembled and assembled conveniently, so that the production efficiency is improved, and a thin-wall composite material wing rib can be internally supported in the forming process; and the accurate size and shape of the thin-wall composite material wing rib in the forming process are ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of wing rib forming molds, in particular to a thin-wall composite material wing rib forming mold. Background Art

[0002] Composite materials are currently widely used in aircraft structure manufacturing and the overall structure manufacturing of small UAVs due to their light weight, high specific strength, specific modulus, good ductility, corrosion resistance, thermal conductivity, heat insulation, sound insulation, vibration reduction, high (low) temperature resistance, ablation resistance, electromagnetic wave penetration, wave absorption concealment, designability, preparation flexibility and easy processing. The rib is one of the important components of the wings of aircraft and UAVs. It is the lateral force-bearing skeleton of the wing, generally consistent with the shape of the airfoil, used to support the wing skin and maintain the cross-sectional shape of the wing.

[0003] After searching, the Chinese patent publication number is CN217395223U, which discloses a composite material inter-beam reinforcement rib forming mold, the forming mold comprising: a forming lower mold, a lower mold core mold, several intermediate molds and a forming upper mold; the forming lower mold, the lower mold core mold, several intermediate molds and the forming upper mold are stacked in sequence to form a combined forming mold. When operating this technical solution, it is necessary to place the dry intermediate mold on the lower mold core mold after laying the prepreg. The operation is relatively complicated and time-consuming and labor-intensive. At the same time, it is not conducive to the subsequent disassembly of the molded product and cannot meet the use requirements. Therefore, a thin-walled composite material rib forming mold is proposed to solve the above-mentioned problems. Utility Model Content

[0004] (1) Technical problems solved

[0005] In view of the shortcomings of the existing technology, the present invention provides a thin-walled composite material wing rib forming mold, which has the advantages of being able to quickly disassemble and assemble the mold and effectively improve processing efficiency, and solves the problems raised in the above background technology.

[0006] (2) Technical solution

[0007] In order to achieve the above-mentioned purpose of effectively facilitating users to quickly disassemble and assemble molds and effectively improve processing efficiency, the utility model provides the following technical solutions: a thin-walled composite material wing rib forming mold, comprising a forming middle mold, a forming lower mold and a forming top mold, the forming top mold and the forming lower mold are respectively located on the upper and lower sides of the forming middle mold, a forming hole is provided on the inner side of the forming middle mold, a first stopper is provided at the bottom of the forming top mold, a first pressing block is provided at the bottom of the first stopper, a supporting shaping component is provided on the top of the forming lower mold, and a forming splitting mechanism is provided between the forming middle mold, the forming lower mold and the forming top mold;

[0008] The molding splitting mechanism includes connecting columns, which are in several numbers and are movably installed between the molding lower mold and the molding top mold and pass through the interior of the molding middle mold. A top plate is fixedly installed between the tops of several of the connecting columns, and a bottom plate is fixedly installed between the bottoms of several of the connecting columns. A support frame located on the rear side of the molding middle mold is fixedly installed between the top plate and the bottom plate, and control motors are fixedly installed on the opposite sides of the top plate and the bottom plate. A support block fixedly connected to the rear side of the molding middle mold is fixedly installed inside the support frame, and the output shaft of the control motor passes through the interior of the support frame and is fixedly connected to a rotating screw rotatably connected to the support block. The outer sides of the two rotating screws are threadedly installed with threaded blocks that fit into the inner wall of the support frame, and the front sides of the two threaded blocks are fixedly installed with control plates fixedly connected to the molding lower mold and the molding top mold respectively.

[0009] Preferably, the support shaping assembly includes a second stopper, which is fixedly mounted on the top of the lower forming die, a rib shaping block is fixedly mounted on the inner side of the second stopper, and a reinforcing rib groove is provided on the top of the rib shaping block.

[0010] Preferably, the number of the connecting columns is several and they are distributed in a rectangular array, and movable holes adapted to the connecting columns are provided inside the lower forming mold and the upper forming mold.

[0011] Preferably, a plurality of support pads distributed in a rectangular array are fixedly mounted on the bottom of the base plate, the support frame is designed as a U-shaped structure, and a threaded hole adapted to the rotating screw is provided inside the threaded block.

[0012] Preferably, the upper and lower sides of the forming middle die are respectively provided with embedding grooves adapted to the first stopper and the second stopper, and the first pressing block is adapted to the forming hole.

[0013] Preferably, the inner diameter of the wing rib shaping block is smaller than the inner diameter of the forming hole and is threadedly mounted with the second stop block and the forming lower die through bolts. The number of the reinforcing rib grooves is several and is distributed at equal distances.

[0014] (3) Beneficial effects

[0015] Compared with the prior art, the present invention provides a thin-wall composite material rib forming die, which has the following beneficial effects:

[0016] 1. This thin-walled composite material wing rib forming mold, through the design and use of the forming splitting mechanism, can easily realize the rapid splitting and combination between the forming middle mold, the forming lower mold and the forming top mold. Compared with the existing technology, it does not require the subsequent assembly of the forming middle mold, greatly simplifies the opening and closing process of the mold, thereby improving production efficiency.

[0017] 2. The thin-walled composite wing rib forming mold is designed and used by setting the rib forming block and the reinforcing rib groove in the support forming component. It can provide internal support for the thin-walled composite wing rib during the forming process, ensuring that the thin-walled composite wing rib obtains accurate size and shape during the forming process. At the same time, the reinforcing rib groove increases the structural strength of the wing rib. The rib forming block is installed with the second stop block and the forming lower mold thread by bolts, so that it can be easily replaced by the user according to the use requirements, which is convenient for the user to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional schematic diagram of the overall structure of the utility model;

[0019] Figure 2 A side perspective schematic diagram of the overall structure of the utility model;

[0020] Figure 3 This is a three-dimensional schematic diagram of the connection between the lower die and the supporting shaping assembly of the structure of the utility model;

[0021] Figure 4 It is a three-dimensional schematic diagram of the structural forming and splitting mechanism of the utility model.

[0022] In the figure: 1. Molding middle mold; 2. Molding lower mold; 3. Molding top mold; 4. Molding hole; 5. First stopper; 6. First pressure block; 7. Support shaping assembly; 71. Second stopper; 72. Wing rib shaping block; 73. Reinforcement rib groove; 8. Molding and splitting mechanism; 81. Connecting column; 82. Top plate; 83. Bottom plate; 84. Support frame; 85. Control motor; 86. Support block; 87. Rotating screw; 88. Threaded block; 89. Control board. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] See also Figure 1-4A thin-walled composite wing rib forming mold, comprising a forming middle mold 1, a forming lower mold 2 and a forming top mold 3, the forming top mold 3 and the forming lower mold 2 are respectively located on the upper and lower sides of the forming middle mold 1, a forming hole 4 is provided on the inner side of the forming middle mold 1, a first stopper 5 is provided at the bottom of the forming top mold 3, a first pressing block 6 is provided at the bottom of the first stopper 5, the first pressing block 6 is adapted to the forming hole 4, a supporting shaping component 7 is provided on the top of the forming lower mold 2, the supporting shaping component 7 includes a second stopper 71, the second stopper 71 is fixedly installed on the top of the forming lower mold 2, the upper and lower sides of the forming middle mold 1 are respectively provided with embedded grooves adapted to the first stopper 5 and the second stopper 71, and a wing is fixedly installed on the inner side of the second stopper 71 The rib shaping block 72 has an inner diameter smaller than that of the forming hole 4 and is threadedly mounted with the second stopper 71 and the forming lower mold 2 by bolts. A reinforcing rib groove 73 is provided on the top of the rib shaping block 72. The number of the reinforcing rib grooves 73 is several and they are equidistantly distributed. The threaded installation of the bolts makes it easy for the user to replace the rib shaping block 72. The thin-walled composite material rib forming mold is designed and used by setting the rib shaping block 72 and the reinforcing rib groove 73 in the support shaping component 7. It can provide internal support for the thin-walled composite material rib during the forming process, ensuring that the thin-walled composite material rib obtains accurate size and shape during the forming process. At the same time, the reinforcing rib groove 73 increases the structural strength of the rib.

[0025] A forming splitting mechanism 8 is provided between the forming middle mold 1, the forming lower mold 2 and the forming top mold 3. The forming splitting mechanism 8 includes connecting columns 81. There are several connecting columns 81 and they are movably installed between the forming lower mold 2 and the forming top mold 3 and pass through the inside of the forming middle mold 1. There are several connecting columns 81 and they are distributed in a rectangular array. The insides of the forming lower mold 2 and the forming top mold 3 are provided with movable holes adapted to the connecting columns 81. A top plate 82 is fixedly installed between the tops of several connecting columns 81. A bottom plate 83 is fixedly installed between the bottoms of several connecting columns 81. Several supporting pads distributed in a rectangular array are fixedly installed on the bottom of the bottom plate 83. The connecting columns 81 and the supporting pads distributed in a rectangular array provide stable support to ensure the stability of the mold during the forming process and the quality of the product. A supporting frame 84 located on the rear side of the forming middle mold 1 is fixedly installed between the top plate 82 and the bottom plate 83. The supporting frame 84 is a U-shaped structure design. The opposite sides of the top plate 82 and the bottom plate 83 are fixedly installed with a control motor 85. The interior of the support frame 84 is fixedly installed with a support block 86 fixedly connected to the rear side of the forming middle mold 1, and the output shaft of the control motor 85 passes through the interior of the support frame 84 and is fixedly connected to a rotating screw 87 rotatably connected to the support block 86. The outer sides of the two rotating screws 87 are threadedly installed with threaded blocks 88 that fit into the inner wall of the support frame 84. The interior of the threaded block 88 is provided with a threaded hole that is compatible with the rotating screw 87. The front sides of the two threaded blocks 88 are fixedly installed with a control board 89 that is fixedly connected to the forming lower mold 2 and the forming top mold 3 respectively. It should be noted that the specific structure and working principle of the control motor 85 and the rotating screw 87 refer to the prior art. The thin-walled composite wing rib forming mold, by setting the design and use of the forming splitting mechanism 8, can easily realize the rapid splitting and combination between the forming middle mold 1, the forming lower mold 2 and the forming top mold 3. Compared with the prior art, it does not require the subsequent assembly of the forming middle mold 1, which greatly simplifies the opening and closing process of the mold, thereby improving production efficiency.

[0026] During use, the user can cover the outer surface of the wing rib shaping block 72 with a layer of adhesive demoulding cloth to facilitate subsequent demoulding. The control motor 85 below drives the rotating screw 87 to rotate, driving the threaded block 88 to move in the support frame 84, so that the control board 89 pushes the molding lower mold 2 to approach the molding middle mold 1 until the second stop block 71 is embedded in the embedding groove of the molding middle mold 1. At this time, the user can lay the product in the molding hole 4 in the molding middle mold 1, and then drive it through the upper control motor 85 to make the molding top mold 3 drive the first stop block 5 and the first pressure block 6 to approach the molding middle mold 1 until the first pressure block 6 is embedded in the molding hole 4 to limit the shape of the product. After the mold is closed, the molding and curing operation can be carried out. After the molding is completed, the control motor 85 is started to reverse to quickly split and demould.

[0027] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0028] In summary, the thin-walled composite material wing rib forming mold can conveniently realize the rapid splitting and combination between the forming middle mold 1, the forming lower mold 2 and the forming top mold 3 by setting up the design and use of the forming splitting mechanism 8. Compared with the existing technology, it does not require subsequent assembly of the forming middle mold 1, which greatly simplifies the opening and closing process of the mold, thereby improving production efficiency. By setting up the rib forming block 72 and the reinforcing rib groove 73 in the support shaping component 7, it can provide internal support during the forming process of the thin-walled composite material wing rib to ensure that the thin-walled composite material wing rib obtains accurate size and shape during the forming process. At the same time, the reinforcing rib groove 73 increases the structural strength of the wing rib. The rib forming block 72 is threadedly installed with the second stop block 71 and the forming lower mold 2 by bolts, so that it can be easily replaced by the user according to the use requirements, which is convenient for the user to use and solves the problems raised in the above background technology.

[0029] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply the existence of any such actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or device comprising the element.

[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A thin-walled composite material wing rib forming die, comprising a forming middle die (1), a forming lower die (2) and a forming top die (3), wherein the forming top die (3) and the forming lower die (2) are respectively located on the upper and lower sides of the forming middle die (1), a forming hole (4) is provided on the inner side of the forming middle die (1), a first stopper (5) is provided at the bottom of the forming top die (3), a first pressing block (6) is provided at the bottom of the first stopper (5), and a supporting shaping component (7) is provided at the top of the forming lower die (2), characterized in that: A forming splitting mechanism (8) is provided between the forming middle die (1), the forming lower die (2) and the forming top die (3); The molding splitting mechanism (8) includes a plurality of connecting columns (81) which are movably mounted between the molding lower mold (2) and the molding top mold (3) and pass through the interior of the molding middle mold (1). A top plate (82) is fixedly mounted between the tops of the plurality of connecting columns (81), and a bottom plate (83) is fixedly mounted between the bottoms of the plurality of connecting columns (81). A support frame (84) located at the rear side of the molding middle mold (1) is fixedly mounted between the top plate (82) and the bottom plate (83). The opposite sides of the top plate (82) and the bottom plate (83) are fixedly mounted. A control motor (85) is provided. A support block (86) fixedly connected to the rear side of the forming middle mold (1) is fixedly installed inside the support frame (84). The output shaft of the control motor (85) passes through the interior of the support frame (84) and is fixedly connected to a rotating screw (87) rotatably connected to the support block (86). The outer sides of the two rotating screws (87) are both threadedly installed with thread blocks (88) that fit the inner wall of the support frame (84). The front sides of the two thread blocks (88) are fixedly installed with control boards (89) that are respectively fixedly connected to the forming lower mold (2) and the forming top mold (3).

2. The thin-walled composite material rib forming die according to claim 1, characterized in that: The support shaping assembly (7) comprises a second stopper (71), the second stopper (71) being fixedly mounted on the top of the lower forming die (2), a wing rib shaping block (72) being fixedly mounted on the inner side of the second stopper (71), and a reinforcing rib groove (73) being provided on the top of the wing rib shaping block (72).

3. The thin-walled composite material rib forming mold according to claim 1, characterized in that: The number of the connecting columns (81) is several and they are distributed in a rectangular array. The interiors of the lower forming die (2) and the upper forming die (3) are both provided with movable holes adapted to the connecting columns (81).

4. The thin-walled composite material rib forming die according to claim 1, characterized in that: The bottom of the base plate (83) is fixedly mounted with a plurality of support pads distributed in a rectangular array. The support frame (84) is designed as a U-shaped structure. The interior of the threaded block (88) is provided with a threaded hole adapted to the rotating screw (87).

5. The thin-walled composite material rib forming die according to claim 2, characterized in that: The upper and lower sides of the molding middle mold (1) are respectively provided with embedding grooves adapted to the first stopper (5) and the second stopper (71), and the first pressing block (6) is adapted to the molding hole (4).

6. The thin-walled composite material rib forming die according to claim 2, characterized in that: The inner diameter of the wing rib shaping block (72) is smaller than the inner diameter of the forming hole (4) and is threadedly mounted with the second stopper (71) and the forming lower die (2) via bolts. The number of the reinforcing rib grooves (73) is several and is distributed at equal distances.

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