Aviation composite hot-press forming tool capable of being heated uniformly

Abstract

The utility model discloses an evenly heated aviation composite material hot press forming tool, and relates to the technical field of aviation composite material machining, the evenly heated aviation composite material hot press forming tool comprises a mounting base and a machining assembly, a mounting top plate is distributed above the mounting base, and the machining assembly is arranged in the middle of the upper end of the mounting base; the machining assembly comprises a mounting frame, limiting cylinders, limiting rods, reset springs, a mounting base, butt joint through holes, a hot-pressing lower die plate, a heating wire and a heat conduction block, the limiting cylinders are mounted on the two sides of the outer portion of the mounting frame, the limiting rods are connected into the limiting cylinders, the reset springs are connected into the limiting cylinders outside the limiting rods, and the mounting base is connected into the mounting frame. Butt-joint through holes are formed in the two sides of the interior of the mounting base. The aviation composite hot-press forming tool capable of achieving uniform heating can adapt to aviation composites of different sizes for rapid replacement of the hot-press template, meanwhile, the aviation composites are heated uniformly, and the overall practicability and the use efficiency of the hot-press forming tool are improved.

Description

Technical Field

[0001] This utility model relates to the field of aerospace composite processing technology, specifically to a hot pressing tooling for aerospace composites that is uniformly heated. Background Technology

[0002] Aerospace composites refer to novel materials formed by the complex spatial combination of two or more materials with different physical and chemical properties. Primarily used in aircraft manufacturing, these materials are composited through specialized molding processes to improve material performance or meet specific physical performance requirements. Aerospace composites play a crucial role in the aerospace manufacturing industry, and their superior performance and broad application prospects make them an important direction for future aerospace material development. To improve the processing efficiency of aerospace composites, a hot-press forming tooling is needed; however, existing hot-press forming tooling still has the following shortcomings:

[0003] When existing hot press molding fixtures are used, most hot press molding fixtures are not easy to adapt to the size of the hot press mold for different volumes of aerospace composite materials. This makes it time-consuming and laborious to replace the hot press mold. At the same time, an unsuitable hot press mold can easily cause uneven heating of aerospace composite materials, resulting in a decrease in the practicality and efficiency of the hot press molding fixture.

[0004] Therefore, in view of this, we studied and improved the existing structure and its shortcomings, and proposed a tooling for uniformly heated aerospace composite hot pressing. Utility Model Content

[0005] The purpose of this invention is to provide a hot pressing tooling for uniformly heated aerospace composite materials to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a uniformly heated aerospace composite hot-pressing forming fixture, comprising a mounting base and a processing component. A mounting top plate is distributed above the mounting base. The processing component is located at the upper center of the mounting base, and includes a mounting frame, limiting cylinders, limiting rods, a return spring, a mounting seat, connecting holes, a hot-pressing lower template, heating wires, and a heat-conducting block. Limiting cylinders are installed on both sides of the outer side of the mounting frame, and limiting rods are connected inside the limiting cylinders. A return spring is connected inside the limiting cylinders outside the limiting rods. A mounting seat is connected inside the mounting frame, and connecting holes are opened on both sides inside the mounting seat. A hot-pressing lower template is installed at the upper center of the mounting seat, and heating wires are installed inside the hot-pressing lower template. A heat-conducting block is located at the upper end of the hot-pressing lower template. A limiting component is located at the lower end of the mounting top plate.

[0007] Furthermore, the limiting rod and the limiting cylinder are embedded in each other, and the limiting rod is elastically connected to the limiting cylinder through a return spring.

[0008] Furthermore, the external dimensions of the limiting rod are adapted to the internal dimensions of the mating through hole, and the limiting rod is embeddedly connected to the mounting base through the mating through hole.

[0009] Furthermore, the heating wire is embedded in the hot-pressing template, and the heating wire and the hot-pressing template are fixedly connected by bolts.

[0010] Furthermore, the limiting component includes a hydraulic cylinder, a pressure plate, a limiting vertical rod, and a docking block. The pressure plate is installed at the front end of the hydraulic cylinder, and the limiting vertical rod is connected to the four corners inside the pressure plate. A docking block is added to both sides of the lower end of the pressure plate.

[0011] Furthermore, the limiting component also includes a receiving frame, a spring damping rod, and a receiving block. The upper end of the mounting base is equipped with receiving frames on both sides, and the receiving frame is equipped with a spring damping rod inside. The upper end of the spring damping rod is equipped with a receiving block.

[0012] Furthermore, there are two docking blocks, and the two docking blocks are symmetrically arranged on both sides of the lower end of the pressure plate with respect to the central axis of the side of the pressure plate.

[0013] Furthermore, the receiving block is embedded in the receiving frame, and the receiving block is elastically connected to the receiving frame via a spring damping rod.

[0014] This utility model provides a tooling for hot pressing of aerospace composite materials with uniform heating, which has the following beneficial effects:

[0015] 1. This utility model, through the configuration of processing components, enables the use of a thermoforming tooling for uniformly heated aerospace composites. The mounting frame is fixed to the upper center of the mounting base using fastening bolts, and the limiting cylinder is fixed to both sides of the mounting frame using the same bolts. A return spring allows the limiting rod to elastically connect with the limiting cylinder, allowing the mounting seat to be installed inside the mounting frame. Simultaneously, the limiting rod, in conjunction with the connecting through hole, quickly fixes the mounting seat inside the mounting frame. A heating wire is installed inside the thermoforming template, and the heating wire delivers heat from above the thermoforming template. Combined with a heat-conducting block, this ensures more uniform heat distribution, thereby improving the heating uniformity of the aerospace composites and increasing the overall practicality and efficiency of the thermoforming tooling.

[0016] 2. This utility model, through the setting of the limiting component, enables the hydraulic cylinder to drive the pressure plate to move during the use of the uniformly heated aerospace composite hot pressing tooling. The limiting vertical rods connected at the four corners inside the pressure plate enhance the stability of the pressure plate during movement. The spring damping rod makes the receiving block and the receiving frame elastically connected. At the same time, the external dimensions of the mating blocks set on both sides of the lower end of the pressure plate are adapted to the external dimensions of the receiving block. Thus, after the pressure plate moves down, the mating blocks and the receiving blocks prevent excessive pressure from damaging the forming tooling during mold closing, thereby extending the service life of the hot pressing tooling and improving the overall efficiency of the hot pressing tooling. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of a thermoforming tooling for uniformly heated aerospace composite materials according to the present invention.

[0018] Figure 2 This is a schematic diagram of the three-dimensional unfolding structure of the hot-pressing template of a uniformly heated aerospace composite hot-pressing molding tool according to this utility model.

[0019] Figure 3 This is a three-dimensional cross-sectional view of the limiting cylinder structure of a uniformly heated aerospace composite hot pressing forming tooling according to the present invention.

[0020] Figure 4 This is a three-dimensional cross-sectional view of the limiting component of a uniformly heated aerospace composite hot pressing tooling according to the present invention.

[0021] In the diagram: 1. Mounting base; 2. Mounting top plate; 3. Processing components; 301. Mounting frame; 302. Limiting cylinder; 303. Limiting rod; 304. Return spring; 305. Mounting seat; 306. Connecting through hole; 307. Hot pressing lower template; 308. Heating wire; 309. Heat-conducting block; 4. Limiting components; 401. Hydraulic cylinder; 402. Pressure plate; 403. Limiting vertical rod; 404. Connecting block; 405. Receiving frame; 406. Spring damping rod; 407. Receiving block. Detailed Implementation

[0022] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0023] like Figures 1 to 4As shown, a uniformly heated aerospace composite hot pressing forming fixture includes a mounting base 1 and a processing component 3. A mounting top plate 2 is distributed above the mounting base 1. The processing component 3 is located at the upper center of the mounting base 1, and includes a mounting frame 301, a limiting cylinder 302, a limiting rod 303, a return spring 304, a mounting seat 305, a connecting through hole 306, a hot pressing lower template 307, a heating wire 308, and a heat-conducting block 309. Limiting cylinders 302 are installed on both sides of the mounting frame 301, and the limiting rod 303 is connected inside the limiting cylinder 302. The limiting rod 303 is connected inside the limiting cylinder 302. A return spring 304 is included. A mounting base 305 is connected inside the mounting frame 301. The mounting base 305 has through holes 306 on both sides. A hot-pressing template 307 is mounted on the upper center of the mounting base 305. A heating wire 308 is installed inside the hot-pressing template 307. A heat-conducting block 309 is located at the upper end of the hot-pressing template 307. A limiting rod 303 is embedded in the limiting cylinder 302 and elastically connected to the limiting cylinder 302 via the return spring 304. The external dimensions of the limiting rod 303 are adapted to the internal dimensions of the through holes 306. 06 is embeddedly connected to the mounting base 305, and the heating wire 308 is embeddedly connected to the hot pressing template 307. The heating wire 308 and the hot pressing template 307 are fixedly connected by bolts. The mounting frame 301 is fixedly installed on the upper middle part of the mounting base 1 by fastening bolts, and the limiting cylinder 302 is fixedly installed on both sides of the outside of the mounting frame 301 with the fastening bolts. The limiting rod 303 is installed into the limiting cylinder 302. The return spring 304 makes the limiting rod 303 and the limiting cylinder 302 elastically connected. The mounting base 305 is installed into the mounting frame 301. At the same time, openings are made on both sides inside the mounting base 305. The internal dimensions of the through hole 306 are adapted to the external dimensions of the limiting rod 303, thereby quickly fixing the mounting base 305 inside the mounting frame 301 through the limiting rod 303 and the through hole 306. This allows for quick adaptation to the size of the aerospace composite material for changing the hot pressing template 307. The heating wire 308 is installed inside the hot pressing template 307, and the operation of the heating wire 308 sends heat out from above the hot pressing template 307. With the help of the heat-conducting block 309, the heat is dissipated more evenly, thereby improving the heating uniformity of the aerospace composite material and increasing the overall practicality and efficiency of the hot pressing tooling.

[0024] like Figure 1 , Figure 3 and Figure 4As shown, a limiting component 4 is provided at the lower end of the mounting top plate 2. The limiting component 4 includes a hydraulic cylinder 401, a pressure plate 402, a limiting vertical rod 403, and a docking block 404. The pressure plate 402 is installed at the front end of the hydraulic cylinder 401, and the limiting vertical rod 403 is connected to the four corners inside the pressure plate 402. The docking blocks 404 are added to both sides of the lower end of the pressure plate 402. The limiting component 4 also includes a receiving frame 405, a spring damping rod 406, and a receiving block 407. The upper ends of the mounting base 1 are located on both sides. A receiving frame 405 is installed, and a spring damping rod 406 is installed inside the receiving frame 405. A receiving block 407 is installed on the upper end of the spring damping rod 406. There are two connecting blocks 404, which are symmetrically arranged on both sides of the lower end of the pressure plate 402 along the side center axis. The receiving block 407 is embedded in the receiving frame 405 and is elastically connected to the receiving frame 405 through the spring damping rod 406. Hydraulic cylinders 401 are fixedly installed on both sides inside the mounting top plate 2 using fastening bolts. Pressure plate 402 is also fixedly installed on the front end of hydraulic cylinder 401 using the same fastening bolts. The operation of hydraulic cylinder 401 moves pressure plate 402, and the stability of pressure plate 402 during movement is enhanced by the limiting vertical rods 403 connected at the four corners inside pressure plate 402. The receiving frame 405 is fixedly installed on both sides of the upper end of the mounting base 1, and spring damping rods 406 are fixedly installed inside the receiving frame 405. The spring damping rods 406 allow the receiving block 407 to be elastically connected to the receiving frame 405. Simultaneously, the external dimensions of the mating blocks 404 on both sides of the lower end of pressure plate 402 are adapted to the external dimensions of the receiving block 407. Therefore, after pressure plate 402 moves downward, the mating blocks 404 and receiving blocks 407 prevent excessive pressure during mold closing, thus avoiding damage to the molding fixture and extending the service life of the hot pressing molding fixture, thereby improving the overall efficiency of the hot pressing molding fixture.

[0025] In summary, when using this uniformly heated aerospace composite hot pressing tooling, firstly, the limiting vertical rods 403 are fixedly installed at the four corners of the upper end of the mounting base 1 using fastening bolts. Then, the mounting top plate 2 is fixedly installed on the upper end of the limiting vertical rods 403 using fastening bolts. Next, the mounting frame 301 is fixedly installed at the middle of the upper end of the mounting base 1 using fastening bolts. Finally, the limiting cylinders 302 are fixedly installed on both sides of the outside of the mounting frame 301 using fastening bolts. The limiting rods 303 are then installed inside the limiting cylinders 302, and the return spring 304 provides an elastic connection between the limiting rods 303 and the limiting cylinders 302. The mounting seat 305 is then installed inside the mounting frame 301, and simultaneously, the mounting seat 305 is quickly fixed inside the mounting frame 301 by the limiting rods 303 engaging with the through holes 306. Finally, the heating wire 308 is installed in the lower hot pressing mold. Inside plate 307, heat is delivered from above the hot pressing template 307 via heating wire 308, and the heat dissipation is made more even with the heat-conducting block 309. Then, the hydraulic cylinder 401 drives the pressure plate 402 to move, and the limiting vertical rods 403 connected at the four corners inside the pressure plate 402 improve the stability of the pressure plate 402 during movement. The receiving frame 405 is fixedly installed on both sides of the upper end of the mounting base 1, and the spring damping rod 406 is fixedly installed inside the receiving frame 405. The spring damping rod 406 makes the receiving block 407 elastically connected to the receiving frame 405. At the same time, the mating block 404 works with the receiving block 407 to prevent excessive pressure during mold closing and damage to the forming tooling, thereby extending the service life of the hot pressing forming tooling and improving the overall efficiency of the hot pressing forming tooling.

[0026] The embodiments of this utility model are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the utility model to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical applications of this utility model, and to enable those skilled in the art to understand this utility model and design various embodiments with various modifications suitable for a particular purpose.

Claims

1. An aeronautical composite hot press forming tool for uniform heating, comprising a mounting base (1) and a processing assembly (3), characterized in that, The mounting base (1) is provided with a mounting top plate (2) above, the upper end of the mounting base (1) is provided with a machining assembly (3), and the machining assembly (3) comprises a mounting frame (301), a limiting cylinder (302), a limiting rod (303), a reset spring (304), a mounting seat (305), a butt joint through hole (306), a hot pressing lower mold plate (307), a heating wire (308) and a heat conducting block (309), the limiting cylinder (302) is mounted on the both sides of the outer part of the mounting frame (301), the limiting rod (303) is connected to the inner part of the limiting cylinder (302), the reset spring (304) is connected to the outer part of the limiting rod (303) in the limiting cylinder (302), the mounting seat (305) is connected to the inner part of the mounting frame (301), the butt joint through hole (306) is formed in the inner part of the both sides of the mounting seat (305), the hot pressing lower mold plate (307) is mounted on the upper end of the mounting seat (305), the heating wire (308) is arranged in the hot pressing lower mold plate (307), and the heat conducting block (309) is arranged on the upper end of the hot pressing lower mold plate (307).

2. A uniformly heated aerospace composite thermoforming tooling fixture as defined in claim 1, wherein, The limiting rod (303) is in embedded connection with the limiting cylinder (302), and the limiting rod (303) is elastically connected with the limiting cylinder (302) through the reset spring (304).

3. A uniformly heated aerospace composite thermoforming tooling fixture as defined in claim 1, wherein, The outer dimension of the limiting rod (303) is matched with the inner dimension of the butt joint through hole (306), and the limiting rod (303) is in embedded connection with the mounting seat (305) through the butt joint through hole (306).

4. The uniformly heated aerospace composite hot press forming tooling of claim 1, wherein, The heating wire (308) is in embedded connection with the hot pressing lower mold plate (307), and the heating wire (308) is fixedly connected with the hot pressing lower mold plate (307) through bolts.

5. A uniformly heated aerospace composite thermoforming tooling fixture as defined in claim 1, wherein, The limiting assembly (4) comprises a hydraulic cylinder (401), a pressing plate (402), a limiting vertical rod (403) and a butt joint block (404), the pressing plate (402) is mounted on the front end of the hydraulic cylinder (401), the limiting vertical rod (403) is connected to the inner part of the four corners of the pressing plate (402), and the butt joint block (404) is additionally arranged on the both sides of the lower end of the pressing plate (402).

6. A uniformly heated aerospace composite hot press forming tooling assembly as defined in claim 5, wherein, The limiting assembly (4) further comprises a bearing frame (405), a spring damping rod (406) and a bearing block (407), the bearing frame (405) is mounted on the both sides of the upper end of the mounting base (1), the spring damping rod (406) is mounted in the bearing frame (405), and the bearing block (407) is mounted on the upper end of the spring damping rod (406).

7. A uniformly heated aerospace composite hot press forming tooling according to claim 6, wherein, The number of the butt joint blocks (404) is two, and the two butt joint blocks (404) are symmetrically arranged on the both sides of the lower end of the pressing plate (402) along the side axis of the pressing plate (402).

8. A uniformly heated aerospace composite thermoforming tooling fixture according to claim 6, wherein, The bearing block (407) is in embedded connection with the bearing frame (405), and the bearing block (407) is elastically connected with the bearing frame (405) through the spring damping rod (406).

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