A small target mechanism component forming tool

Abstract

The utility model relates to the technical field of composite material frock, disclose a kind of small target machine component forming frock, including support and support platform;The support platform is provided with forming die body and guide block, and the forming die body includes several blocks arranged in combination, wherein two opposite blocks are provided with dovetail groove and blind hole, and the dovetail groove is matched with the guide block;First pin hole and first screw hole are provided on the block.For the demolding difficult problem of composite material component, a block combined die is designed, on the basis of not affecting forming effect, frock air tightness, by setting a group of simple tools, to achieve rapid demolding, and the purpose of not damaging parts.

Description

Technical Field

[0001] This utility model relates to the field of composite material tooling technology, and in particular to a small target component molding tooling. Background Technology

[0002] Composite material components are crucial load-bearing parts in aircraft airframe structures, and their quality directly impacts the overall performance and reliability of the aircraft. The molding process of composite material components is highly dependent on specialized process equipment, or tooling. This is because the manufacturing of composite material components involves simultaneous material bonding and structural forming, requiring specially designed and manufactured molds to simultaneously achieve material bonding and precise component molding. Relevant research data and engineering practice demonstrate that molding molds are a key factor in ensuring component quality, playing a decisive role in the surface quality, dimensional accuracy, and internal structural integrity of the component.

[0003] Currently, there are two main structural types of molding fixtures. The first type is a molding die for composite material components. Its base plate is made of Invar steel or a low-expansion alloy, which can accurately replicate the outer contour surface of the composite material component. The back is welded with crisscrossing support ribs, which also have weight-reducing holes and temperature-equalizing holes. However, this structure has a relatively high manufacturing cost and is more suitable for male mold molding processes. If a female mold molding process is used, demolding will be more difficult.

[0004] Another type is the modular structure, which features a simple platform at the bottom of the tooling and multiple different sections depending on the product characteristics. While it has a lower manufacturing cost, disassembling the modular pressure blocks and guide pins can easily scratch the surface of the composite material, especially for thin-walled composite components, and may even cause irreversible indentations. Utility Model Content

[0005] To address the existing problems, this utility model provides a small target component molding fixture. It aims to solve the problem of difficult demolding of composite material components by designing a modular mold. Without affecting the molding effect and the airtightness of the fixture, a set of simple tools is set up to achieve rapid demolding without damaging the parts.

[0006] To achieve the above objectives, the present invention provides the following technical solution.

[0007] A small target component forming fixture includes a support and a support platform; the support platform is provided with a forming mold and a guide block, the forming mold includes several enclosed blocks, wherein two opposite blocks are provided with dovetail grooves and blind holes, the dovetail grooves cooperating with the guide blocks; the blocks are provided with first pin holes and first screw holes.

[0008] As a further improvement of this utility model, the dovetail groove is provided at the bottom of the segment, the blind hole is provided on the outer side of the segment away from the mold cavity of the forming mold, and the blind hole is distributed on both sides of the dovetail groove.

[0009] As a further improvement of this utility model, the blind hole is narrow on the outside and wide on the inside, referred to as the wide segment and the narrow segment, and the narrow segment is provided with an internal thread.

[0010] As a further improvement of this utility model, it also includes a demolding rod, the head end of which is provided with an external thread that mates with the internal thread.

[0011] As a further improvement of this utility model, a handle is provided at the tail end of the demolding rod.

[0012] As a further improvement of this utility model, it also includes a support block, which is disposed on both sides of the support platform. The support block corresponds to the guide block, and the support block is provided with a threaded hole that mates with the external thread.

[0013] As a further improvement of this utility model, the support is a square tube.

[0014] As a further improvement of this utility model, the support is fixedly connected to the support platform.

[0015] As a further improvement of this utility model, the molding body is made of Invar steel.

[0016] As a further improvement of this utility model, the support platform is provided with a second pin hole and a second screw hole corresponding to the pin hole and the screw hole.

[0017] This utility model has the following beneficial effects: This small target part forming fixture provides a stable support foundation for the entire forming process by setting up supports and a support platform. The support platform is equipped with a forming mold and guide blocks. The forming mold adopts a design of several enclosed blocks, with two opposing blocks having dovetail grooves that engage with the guide blocks. Through the coordinated design of the block-combined mold structure and the demolding rod, the technical pain points of difficult demolding and complex operation of traditional fixtures are significantly solved. This structure facilitates rapid positioning, assembly, and disassembly of the forming mold, and uses guide blocks to precisely guide the blocks, ensuring the fitting accuracy between the blocks and improving the tightness of the mold assembly, thereby improving the forming quality of the small target part. Each block is equipped with a first pin hole and a first screw hole, facilitating the positioning and fixing of the blocks with pins and screws, ensuring stability during the forming process.

[0018] Preferably, the dovetail groove is located at the bottom of the segment, and the blind holes are located on the outer surface of the segment away from the mold cavity of the molding body. The blind holes are distributed on both sides of the dovetail groove. This layout makes reasonable use of the space of the segment. The bottom dovetail groove cooperates with the guide block to guide and initially position the segment. The blind holes on the outer side can be used to install other auxiliary components or to perform further fixing or disassembly operations. At the same time, the distribution of blind holes on both sides of the dovetail groove can enhance the connection stability between the segment and the external structure, making the entire molding body more robust and reliable during the molding process.

[0019] Preferably, the blind hole is designed with a wide section and a narrow section, with the narrow section having an internal thread. This special design increases the functionality of the blind hole. The wide section can serve as a guide and accommodate, facilitating the insertion of related components; the internal thread of the narrow section provides a reliable connection to other components with external threads (such as demolding rods). The threaded connection enables a firm fixation, facilitating operation during the molding process and subsequent demolding.

[0020] Preferably, a demolding rod is provided, and the head end of the demolding rod has an external thread that engages with the internal thread of the narrow section of the blind hole, making the demolding operation more convenient and efficient. After molding is completed, by rotating the demolding rod, the molded part can be easily removed from the molding mold body using the transmission action of the thread, avoiding the damage to the part that may be caused by traditional demolding methods, and improving the success rate of demolding and the quality of the part.

[0021] Preferably, a handle is provided at the end of the demolding rod, providing the operator with a better grip and allowing them to apply rotational force more conveniently and comfortably, thus completing the demolding operation with less effort. The handle design conforms to ergonomic principles, improving the convenience and efficiency of operation and reducing the labor intensity of the operator.

[0022] Preferably, support blocks are provided on both sides of the support platform, and the support blocks correspond to the guide blocks. Threaded holes on the support blocks engage with the external threads of the demolding rod, further enhancing the stability and operational reliability of the demolding rod. During demolding, the support blocks provide additional support points for the demolding rod, preventing it from bending or shaking due to uneven force, ensuring a smooth demolding process, and also helping to extend the service life of the demolding rod.

[0023] Preferably, a supporting square tube is used as the support, which has the advantages of simple structure, high strength, and good stability. Its regular shape facilitates processing and installation, and can provide reliable support for the support platform, ensuring the stability of the entire forming fixture during operation and reducing the adverse effects on the quality of the formed parts caused by fixture shaking.

[0024] Preferably, the support and the support platform are fixedly connected, ensuring that their relative positions remain constant and forming a stable integral structure for the entire molding fixture. This fixed connection effectively avoids positional shifts in the molding die caused by relative movement between the support and the support platform during the molding process, thereby ensuring the molding accuracy and quality stability of small target parts.

[0025] Preferably, the molding die is made of Invar steel, which possesses unique physical properties such as a low coefficient of thermal expansion, good dimensional stability, and corrosion resistance. During the molding process, this effectively reduces dimensional changes in the molding die caused by temperature variations, ensuring the die's accuracy and stability, thereby improving the molding quality of small target parts. Simultaneously, its corrosion resistance extends the die's service life and reduces production costs.

[0026] Optionally, the support platform is provided with second pin holes and second screw holes corresponding to the pin holes and screw holes on the corresponding blocks. By having the pins and screws engage with the first pin holes and first screw holes on the blocks respectively, precise positioning and secure fixing of the blocks can be achieved. This dual fixing method ensures that there is no relative movement between the blocks of the molding mold during the molding process, further improving the overall stability of the molding mold and the quality and accuracy of the molded parts. Attached Figure Description

[0027] The accompanying drawings described herein are for illustrative purposes only and do not limit the scope of this invention in any way. Furthermore, the shapes and proportions of the components in the drawings are merely schematic to aid in understanding the invention and do not specifically limit the shapes and proportions of the components. In the drawings: Figure 1 This is an overall schematic diagram of a small target component molding tooling as described in Example 1; Figure 2 This is a block diagram of a small target component forming tooling as described in Example 1; Figure 3 This is a schematic diagram of the segmented dovetail groove and blind hole of a small target component forming tooling described in Example 1; Figure 4 This is a schematic diagram of the narrow and wide sections of the blind hole in a small target component forming tooling as described in Example 1; Figure 5 This is a schematic diagram of the demolding rod of a small target component molding tooling described in Example 1; Figure 6 This is a schematic diagram of the support platform for a small target component forming tooling as described in Example 2; Among them, 1. Support platform; 2. Support; 3. Molding mold body; 4. Block; 5. Guide block; 6. First pin hole; 7. First screw hole; 8. Dovetail groove; 9. Blind hole; 91. Narrow section; 92. Wide section; 10. Demolding rod; 101. Head end; 102. Tail end; 11. Second pin hole; 12. Second screw hole; 13. Support block. Detailed Implementation

[0028] To enable those skilled in the art to better understand the technical solutions of this utility model, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of this utility model.

[0029] It should be noted that when an element is referred to as being "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only embodiments.

[0030] Unless otherwise defined below, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0031] Example 1 like Figure 1 As shown, a small target component molding fixture includes a support 2 and a support platform 1; the support platform 1 is provided with a molding mold body 3, a guide block 5, a support block 7, and a demolding rod 10. One target point is set in each of the four corner areas of the support platform 1.

[0032] To ensure proper product demolding, the molding mold 3 is designed as a split structure, connected to the base plate by pins and bolts to prevent misalignment. For example... Figure 2 As shown, the molding body 3 in this embodiment includes four enclosing blocks 4, wherein two opposing blocks 4 are provided with dovetail grooves 8 and blind holes 9 (e.g., Figure 3As shown), the dovetail groove 8 mates with the guide block 5; the segment 4 is provided with a first pin hole 6 and a first screw hole 7; specifically, the size of the dovetail groove 8 needs to match the inverted trapezoidal guide block 5 of the bottom platform, and the two are provided with a reasonable fitting gap, such as Figure 3 As shown.

[0033] The dovetail groove 8 is located at the bottom of the segment 4, and the blind hole 9 is located on the outer side of the segment 4 away from the mold cavity of the forming mold body 3, with the blind hole 9 distributed on both sides of the dovetail groove 8. The blind hole 9 is narrow on the outside and wide on the inside, and is referred to as the wide segment 92 and the narrow segment 91. The narrow segment 91 is provided with an internal thread.

[0034] Specifically, two blind holes 9 are provided on each side of the dovetail groove 8. The outer side of the blind hole 9 is an M5 threaded hole with a depth of 3mm, and the inner side is a φ7mm blind hole 9 with a depth of 7mm. Figure 4 As shown.

[0035] Each of the four sections is fixed to the bottom support platform 1 by pins and screws. To ensure the gap between each of the four sections, the mating surfaces are machined first to match the second pin holes 11 and the second screw holes 12 provided on the support platform 1.

[0036] The support blocks 7 are disposed on both sides of the support platform 1, corresponding to the guide blocks 5. The support blocks 7 are provided with threaded holes that mate with the external threads. The guide blocks 5 are provided to ensure that the segment 4 moves in a preset direction during demolding. Specifically, as shown... Figure 1 As shown, two support blocks 7 are set on each side of the platform along its length. The support blocks 7 are fixed to the platform by bolts, and an M5 threaded hole is set on the upper part.

[0037] The head end 101 of the demolding rod 10 is provided with an external thread, which mates with the internal thread. The tail end 102 of the demolding rod 10 is provided with a handle.

[0038] The head end 101 of the demolding rod 10 is provided with an external thread, which mates with the internal thread. Specifically, each support block 7 is equipped with one demolding rod 10. The demolding rod 10 is an M5 threaded rod, and the 6mm-10mm area after the end is machined into a smooth rod with a diameter of φ4mm. For ease of operation, an 8mm diameter handle is provided at the tail end. Figure 5 As shown. When demolding the part, rotate both handles simultaneously. The stud at the end of the demolding rod 10 presses against the blind hole 9 of the segment 4, ensuring that the end segment 4 slides smoothly along the direction of the dovetail groove 8.

[0039] The support 2 is a square tube.

[0040] The support 2 is fixedly connected to the support platform 1. Specifically, the fixed connection can be a bolt connection, welding, or other fastener connection.

[0041] The support platform 1 is provided with a second pin hole 11 and a second screw hole 12 corresponding to the pin hole and screw hole.

[0042] Example 2 The difference between this embodiment and Embodiment 1 is that: 1) The web surface of the part and the R-angle forming groove are provided on the support platform 1.

[0043] like Figure 6 As shown, the support platform 1 has a web surface and a rounded corner forming groove on its surface to ensure the manufacturability of the composite material components manufactured by the segment 4.

[0044] Example 3 The difference between this embodiment and Embodiment 1 is that: 1) The molding body 3 is made of Invar steel.

[0045] The molding mold 3 is made of Invar steel, which has an ultra-low coefficient of thermal expansion (≈1.5×10). -6 ( / ℃) significantly reduces the risk of thermal deformation, ensuring product dimensional accuracy and surface quality.

[0046] Advantages of this utility model: 1. The molding body 3 is made of 4 precision blocks 4. The seamless cooperation between the blocks is achieved by positioning with pins and locking with end bolts. When demolding, the handles on both sides are rotated at the same time. The end stud of the demolding rod 10 presses against the blind hole 9 of the block 4, ensuring that the end block 4 slides smoothly along the direction of the dovetail groove 8 and can be smoothly separated from the module, avoiding damage to parts or molds caused by forced separation.

[0047] 2. The main body of the mold is made of Invar steel, which has an ultra-low coefficient of thermal expansion (≈1.5×10). -6 ( / ℃) significantly reduces the risk of thermal deformation, ensuring product dimensional accuracy and surface quality.

[0048] The above embodiments are merely one of the implementation methods for achieving the technical solution of this utility model. The scope of protection claimed by this utility model is not limited to this embodiment, but also includes any variations, substitutions, and other implementation methods that are easily conceived by those skilled in the art within the scope of the technology disclosed in this utility model. Although embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of this utility model. The scope of this utility model is defined by the appended claims and their equivalents.

Claims

1. A small target component forming tooling, characterized in that, It includes a support and a support platform; the support platform is provided with a forming mold and a guide block, the forming mold includes several enclosed blocks, wherein two opposite blocks are provided with dovetail grooves and blind holes, the dovetail grooves cooperate with the guide blocks; the blocks are provided with first pin holes and first screw holes.

2. The small target component forming fixture according to claim 1, characterized in that, The dovetail groove is located at the bottom of the segment, and the blind holes are located on the outer side of the segment away from the mold cavity of the forming mold, with the blind holes distributed on both sides of the dovetail groove.

3. The small target component forming fixture according to claim 1, characterized in that, The blind hole is narrow on the outside and wide on the inside, referred to as the wide segment and the narrow segment, and the narrow segment is provided with an internal thread.

4. The small target component forming fixture according to claim 3, characterized in that, It also includes a demolding rod, the head of which is provided with an external thread that mates with the internal thread.

5. A small target component forming fixture according to claim 4, characterized in that, The tail end of the demolding rod is provided with a handle.

6. A small target component forming fixture according to claim 4, characterized in that, It also includes support blocks, which are disposed on both sides of the support platform. The support blocks correspond to the guide blocks, and the support blocks are provided with threaded holes that mate with the external threads.

7. A small target component forming fixture according to claim 1, characterized in that, The support is a square tube.

8. A small target component forming fixture according to claim 7, characterized in that, The support is fixedly connected to the support platform.

9. A small target component forming fixture according to claim 1, characterized in that, The molding body is made of Invar steel.

10. A small target component forming fixture according to claim 1, characterized in that, The support platform is provided with a second pin hole and a second screw hole corresponding to the pin hole and screw hole.

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