A carbon fiber composite material joint forming mold

Abstract

The utility model discloses a kind of carbon fiber composite material joint forming die, comprising: including up-down mould group, left-right stop block, front-rear stop block, mould core group, the up-down mould group is made of upper module and lower module, upper module is provided with several through holes, lower module is provided with several threaded holes, both are connected by screw, up-down mould group each side edge is evenly provided with threaded hole for with left-right stop block, front-rear stop block connection;Left-right stop block is made of two pieces, and is provided with several through holes, for with up-down mould group left and right side connection;The front-rear stop block is made of two pieces, and is provided with several through holes, for with up-down mould group front and rear side plate connection;The mould core group is made of several pieces of mould core, two pieces of mould core are connected by adhesive, and mould core is made of expandable material.The utility model uses simple mould and the mode of convenient assembly, can be assembled into hot oven forming after multiple moulds, can realize reducing manufacturing cost, increase product production efficiency.

Description

Technical Field

[0001] This utility model belongs to the field of aerospace composite material molding technology, specifically relating to a carbon fiber composite material joint molding mold. Background Technology

[0002] Carbon fiber composites, with their lightweight and high strength, are widely used in aerospace, automotive, and other industries. In the aerospace field, carbon fiber composite frame structures are commonly used in satellites. These frames consist of members and joints. Frame structures effectively reduce weight while also possessing the ability to withstand multi-directional forces. They exhibit good stiffness and overall performance, effectively bearing concentrated loads and various dynamic loads.

[0003] This utility model relates to a molding die for carbon fiber composite material joints. Conventional molding of carbon fiber composite material joints is generally carried out by compression molding. Because the number of joints in the frame structure is inconsistent, each joint requires a separate mold. Moreover, conventional compression molding dies have a large number of components, which greatly increases the manufacturing cost and time of the mold. Furthermore, the fact that molding can only be done individually by a press limits the production efficiency of the product and increases storage and maintenance costs. This utility model adopts a simple mold and an easy assembly method. Multiple molds can be assembled and placed together in a hot oven for molding, which can reduce manufacturing costs and increase product production efficiency. Summary of the Invention

[0004] The purpose of this invention is to provide a simple and easy-to-operate mold for manufacturing carbon fiber composite material joints, and to allow multiple joint products to be formed simultaneously using a hot drying oven.

[0005] A carbon fiber composite material joint molding die includes: upper and lower modules, left and right stops, front and rear stops, and a core assembly. The upper and lower modules consist of an upper module and a lower module. The upper module has several through holes, and the lower module has several threaded holes. The two modules are connected by screws. Each side of the upper and lower modules has threaded holes for connecting with the left and right stops and the front and rear stops. The left and right stops consist of two pieces and have several through holes for connecting with the left and right sides of the upper and lower modules. The front and rear stops consist of two pieces and have several through holes for connecting with the front and rear side plates of the upper and lower modules. The core assembly consists of several core pieces, and two core pieces are connected by adhesive. All core pieces are made of expandable material.

[0006] In a preferred embodiment of this invention, the outer dimensions of the mold core are provided with a certain process gap, the size of which is determined according to the thermal expansion parameters of the silicone rubber.

[0007] In a preferred embodiment of this utility model, the upper and lower modules, left and right stops, and front and rear stops are made of P20 mold steel.

[0008] In a preferred embodiment of this utility model, the upper and lower modules, left and right stops, and front and rear stops are connected by screws for positioning.

[0009] In a preferred embodiment of this utility model, the upper and lower modules, left and right stops, front and rear stops, core assembly, and multiple carbon fiber composite material joints are integrally cured and molded using an oven process. Attached Figure Description

[0010] Figure 1 A schematic diagram of the molding die structure for carbon fiber composite joints; Figure 2 A half-section diagram of the mold structure Detailed Implementation

[0011] A carbon fiber composite material joint molding die includes upper and lower modules 100, left and right stops 200, front and rear stops 300, and a core assembly 400. The upper and lower modules 100 are composed of an upper module 110 and a lower module 120. The upper module 110 is provided with several through holes, and the lower module 120 is provided with several threaded holes. The two are connected by screws. Each side of the upper and lower modules 100 is provided with threaded holes for connection with the left and right stops 200 and the front and rear stops 300. The left and right stops 200 are composed of two pieces and are provided with several through holes for connection with the left and right sides of the upper and lower modules 100. The front and rear stops 300 are composed of two pieces and are provided with several through holes for connection with the front and rear side plates of the upper and lower modules 100. The core assembly 400 is composed of several cores. Two cores are connected by adhesive. All cores are made of expandable material.

[0012] See Figure 1 , Figure 2 As shown, the core assembly 400 is bonded and positioned as a single unit using adhesive, and its outline dimensions are consistent with the inner cavity dimensions of the carbon fiber composite joint minus the process clearance. Prepreg is laid up on the outside of the core assembly 400, and after the layup is completed, it is placed into the cavity formed by the upper and lower modules 100. The left and right stop blocks 200 and the front and rear stop blocks 300 are respectively attached to the upper and lower modules 100 using screws to ensure assembly accuracy, thereby achieving the desired external dimensions of the carbon fiber composite joint.

[0013] Carbon fiber composite joints are formed by heating in an oven and then thermally expanding and pressurizing the mandrel.

[0014] In the description of this application, it should be understood that the terms "upper" and "lower" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation. Therefore, they should not be construed as limiting this application.

Claims

1. A molding die for a carbon fiber composite material joint, characterized in that, The system includes upper and lower modules (100), left and right stops (200), front and rear stops (300), and a core assembly (400). The upper and lower modules (100) are composed of an upper module (110) and a lower module (120). The upper module (110) is provided with several through holes, and the lower module (120) is provided with several threaded holes. The two are connected by screws. Each side of the upper and lower modules (100) is provided with threaded holes for connecting with the left and right stops (200) and the front and rear stops (300). The left and right stops (200) are composed of two pieces and are provided with several through holes for connecting with the left and right sides of the upper and lower modules (100). The front and rear stops (300) are composed of two pieces and are provided with several through holes for connecting with the front and rear side plates of the upper and lower modules (100). The core assembly (400) is composed of several core pieces. The two core pieces are connected by adhesive. All core pieces are made of expandable material.

2. The carbon fiber composite material joint molding die according to claim 1, characterized in that, The outer dimensions of the core assembly (400) are provided with a certain process gap, the size of which is determined by the thermal expansion parameters of the silicone rubber.

3. The carbon fiber composite material joint molding die according to claim 1, characterized in that, The upper and lower modules (100), left and right stops (200), and front and rear stops (300) are made of P20 mold steel.

4. The carbon fiber composite material joint molding die according to claim 1, characterized in that, The upper and lower modules (100), left and right stops (200), and front and rear stops (300) are connected by screws for positioning.

5. The carbon fiber composite material joint molding die according to claim 1, characterized in that, The components, including upper and lower modules (100), left and right stops (200), front and rear stops (300), core assembly (400), and multiple carbon fiber composite material joints, are integrally cured and molded using an oven process.

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