Carbon fiber cabin forming die

Abstract

The utility model relates to the field of carbon fiber cabin forming, in particular to a carbon fiber cabin forming die which comprises a core layer die and an outer layer die. The outer-layer mold forms a mounting space for mounting the core-layer mold, and a forming cavity is formed between the core-layer mold and the outer-layer mold and is used for forming the carbon fiber cabin; the carbon fiber cabin forming mold further comprises a clamping piece which is arranged in the forming cabin in a clamped mode, the clamping piece comprises a wedge-shaped structure, and the wedge-shaped structure is inserted between the core layer mold and the outer layer mold and used for pressing the carbon fiber prepreg to be tightly attached to the core layer mold. And the carbon fiber prepreg can be conveniently positioned and formed.

Description

Technical Field

[0001] The utility model relates to the field of carbon fiber cabin body forming, in particular to a carbon fiber cabin body forming die. Background Technique

[0002] Carbon fiber composite materials are widely used in the fields of aerospace, automobiles, architecture, sports equipment, etc., but they need to be formed before use. The existing forming method of carbon fiber products is to apply pressure to the carbon fiber prepreg through a core layer die and an external die. To ensure the forming of the carbon fiber prepreg, sufficient pressure needs to be applied to its surface to meet the high-temperature and high-pressure forming process of the carbon fiber prepreg, so that the carbon fiber prepreg is formed into a carbon fiber composite material. However, in the forming process, there are problems such as insufficient applied pressure load, which will cause defects in the product after forming, affect the internal resin content of the product, and indirectly affect the strength and surface quality of the product. Therefore, it is necessary to make the prepared core layer die and external die have good and stable clamping and pressing fixation effects on the carbon fiber prepreg, so that the carbon fiber prepreg has a better forming effect. Content of the Utility Model

[0003] The purpose of the utility model is to provide a carbon fiber cabin body forming die, which is convenient for positioning and forming carbon fiber prepreg when assembling and forming the internal die of carbon fiber composite materials during the preparation process.

[0004] To achieve the above purpose, the utility model adopts the following technical scheme:

[0005] A carbon fiber cabin body forming die includes a core layer die and an outer layer die; the outer layer die forms an installation space for installing the core layer die, and a forming cavity is formed between the core layer die and the outer layer die for forming the carbon fiber cabin body; the carbon fiber cabin body forming die further includes a clamping member, which is clamped in the forming cabin, and the clamping member includes a wedge-shaped structure, and the wedge-shaped structure is used to insert between the core layer die and the outer layer die for pressing the carbon fiber prepreg against the core layer die.

[0006] The beneficial effect is that when carbon fiber composite materials of different sizes need to be prepared, first select a suitable core layer die. After wrapping the carbon fiber prepreg on the core layer die, place the core layer die wrapped with the carbon fiber prepreg in the installation space. During the forming process, it is necessary to clamp the core layer die wrapped with the carbon fiber prepreg. By placing the clamping member in the forming cavity formed between the core layer die and the outer layer die, since the clamping member includes a wedge-shaped structure, during the entry process of the clamping member into the forming cavity, under its own pushing action, the carbon fiber prepreg is tightly abutted against the internal core layer die, and with the cooperation of the outer layer die, the carbon fiber prepreg is formed to prepare a carbon fiber composite material with the required shape;

[0007] A further technical solution of the present utility model is that the carbon fiber cabin forming mold further includes an abutting member, which is arranged in the forming cavity. One side of the abutting member is used to abut against the carbon fiber prepreg outside the core layer mold; the other side is used to abut against the clamping member.

[0008] The beneficial effect is that the abutting member is provided to clamp the carbon fiber prepreg together with the core layer mold. Under the pushing action of the clamping member, the surface of the carbon fiber prepreg is more evenly stressed, which helps the formation of the carbon fiber composite material.

[0009] A further technical solution of the present utility model is that the outer layer mold includes two positioning members, and the two positioning members enclose to form the installation space.

[0010] A further technical solution of the present utility model is that the positioning member is provided with a positioning groove. The openings of the two positioning grooves abut against each other to form the installation space. The positioning groove is set as a trapezoidal structure groove with a wider opening and a narrower bottom.

[0011] A further technical solution of the present utility model is that the clamping member includes a middle part and side end parts. The two ends of the middle part are respectively fixedly connected to one of the side end parts; the side end parts gradually form tips in the direction away from the middle part, and the two side end parts respectively extend into the positioning grooves of the two positioning members.

[0012] The beneficial effect is that the setting of the middle part and the side end parts together form a wedge-shaped structure, and the side end parts with tips at both ends are convenient to insert into the forming cavity to apply pressure to the carbon fiber composite material and the core layer mold, which helps the formation of the carbon fiber composite material.

[0013] A further technical solution of the present utility model is that a limiting protrusion is arranged on the groove wall of the positioning groove, and the limiting protrusion extends into a strip shape from the opening to the bottom of the groove; a limiting groove corresponding to the limiting protrusion is arranged on the clamping member.

[0014] A further technical solution of the present utility model is that the positioning member is provided with a positioning hole, and the clamping member and the abutting member are provided with abutting grooves corresponding to the positioning hole. The abutting groove extends along the depth direction perpendicular to the positioning groove. A positioning rod is arranged in the positioning hole, and one end of the positioning rod is inserted into the corresponding abutting groove.

[0015] A further technical solution of the present utility model is that the number of the positioning holes is set to be multiple.

[0016] The beneficial effects of the present utility model are as follows: When it is necessary to form a carbon fiber composite material, after wrapping the carbon fiber prepreg around the core layer mold, the core layer mold wrapped with the carbon fiber prepreg is placed in the positioning groove. Through the abutting and positioning of the abutting member, and in cooperation with the clamping member passing through the forming cavity between the abutting member and the positioning groove, the abutting member is made to contact the carbon fiber prepreg more closely, thereby forming the required carbon fiber composite material. Brief Description of the Drawings

[0017] Figure 1 It is an exploded schematic view of the overall structure of the present utility model.

[0018] Figure 2 It is a schematic view showing the limiting protrusion and the limiting groove of the present utility model;

[0019] In the figure: 1 - core layer mold, 2 - outer layer mold, 21 - positioning groove, 3 - abutting member, 4 - clamping member, 41 - side end portion, 42 - middle portion, 5 - forming cavity, 6 - limiting protrusion, 61 - limiting groove, 7 - positioning rod, 71 - positioning hole, 72 - abutting groove. Detailed Embodiment

[0020] The following further describes the detailed embodiment of the present utility model in conjunction with the attached Figure 1 - Figure 2 drawings.

[0021] Such as Figure 1 and Figure 2As shown in the figure, the present utility model discloses a carbon fiber cabin forming mold, which includes a core layer mold 1, two positioning members 2 and an abutting member 3. The two positioning members 2 are spliced together to form an outer layer mold. Each positioning member 2 is provided with a trapezoidal positioning groove 21 that is wider at the top and narrower at the bottom. The openings of the positioning grooves 21 of the two positioning members 2 abut against each other to form an installation space for installing the core layer mold 1. When using the carbon fiber cabin forming mold, the carbon fiber prepreg is wrapped outside the core layer mold 1, and then the core layer mold 1 wrapped with the carbon fiber prepreg is placed in the installation space. Then, the abutting members 3 are placed on both sides of the core layer mold 1. One side of the abutting member 3 is completely attached to the carbon fiber prepreg on the surface of the core layer mold 1, and the end surface at the other end is perpendicular to the bottom of the positioning groove 21. A receiving space 5 is formed between the abutting member 3 and the groove wall of the positioning groove 21. In this embodiment, because the positioning groove 21 is set as a trapezoidal structure that is wider at the top and narrower at the bottom, the receiving space 5 is wider at one end close to the opening of the positioning groove 21 and narrower at one end close to the bottom of the positioning groove 21. A clamping member 4 is arranged in the positioning groove 21. The clamping member 4 includes a wedge-shaped structure, which is used to insert into the receiving space 5. As the clamping member 4 penetrates deeper into the bottom of the positioning groove 21, the width of the receiving space 5 gradually decreases, pushing the abutting member 3 to stably abut against the surface of the carbon fiber prepreg outside the core layer mold 1. In other embodiments, the groove wall of the positioning groove 21 can also be set perpendicular to the bottom of the groove, and the side of the abutting member 3 facing the groove wall can be set as an inclined surface to form a receiving space 5 with a trapezoidal cross-section. Or, in some embodiments, the cross-section of the receiving space 5 can also be set as a rectangle, and the carbon fiber prepreg is tightly pressed against the core layer mold by inserting the wedge-shaped structure to press the abutting member 3.

[0022] As Figure 1 and Figure 2 shown in the figure, in the present application, the clamping member 4 includes a side end portion 41 and a middle portion 42. The side end portions 41 are arranged in pairs and are respectively integrally connected to both ends of the middle portion 42. The middle portion 42 is set as a rectangular structure. The side end portions 41 gradually shrink into tips along the direction away from the middle portion 42. The side surfaces of the side end portions 41 and the middle portion 42 close to the abutting member 3 are on the same plane and are both perpendicular to the bottom of the positioning groove 21. Therefore, they can stably abut against the side wall on the side of the abutting member 3 away from the core layer mold 1, improving the stability of pushing the abutting member 3 to abut against the carbon fiber prepreg outside the core layer mold. The two side end portions 41 are respectively inserted into the positioning grooves 21 of the two positioning members 2 to respectively press the abutting members 3 in the two positioning grooves 21. In some embodiments, according to actual needs, in each positioning groove 21, the core layer mold is provided with abutting members on one side or both sides thereof. Correspondingly, one or two clamping members 4 are arranged in each positioning groove 21 to press the abutting member 3.

[0023] Referring to Figure 1, the end faces of the side ends 41 facing away from the middle part 42 are respectively used to contact the bottom of the grooves of the two positioning members 2. During use, the core layer mold 1 wrapped with carbon fiber prepreg and the abutting member 3 are placed in the positioning groove 21 of a positioning member 2, and then clamping members 4 are respectively inserted into the accommodating spaces 5 on both sides. The wedge-shaped structure of the clamping member 4 makes one side of the clamping member 4 closely abut against the groove wall of the positioning groove 21, and the side wall on the other side abuts against the abutting member 3 and pushes the abutting member 3 to closely fit with the carbon fiber prepreg. Then, another positioning member 2 is installed, and through the wedge-shaped structure of the clamping member 4, the core layer mold 1 wrapped with carbon fiber prepreg, the abutting member 3, and the clamping member 4 are snapped into the positioning groove 21 of another positioning member 2, realizing the combined clamping and shaping effect of the abutting member 3 and the core layer mold 1 on the carbon fiber prepreg, enabling the carbon fiber prepreg to be subsequently heated and cured into shape, and assisting in the preparation and shaping of carbon fiber composites;

[0024] Refer to Figure 1 and Figure 2 , a limiting protrusion 6 is provided on the groove wall of the positioning member 2. The limiting protrusion 6 is opened along the notch of the positioning member 2 and extends towards the bottom of the groove of the positioning member 2. A limiting groove 61 corresponding to the limiting protrusion 6 is provided on the side end 41. When the upper positioning member 2 pushes the side end 41 to gradually move towards the bottom of the grooves of the upper and lower positioning members 2, at the same time, the limiting protrusion 6 slides in the limiting groove 61. The setting of the limiting groove 61 and the limiting protrusion 6 limits the movement path of the clamping member in the positioning member 2, making the pushing effect of the clamping member 4 on the abutting member 3 more stable; a positioning hole 71 is opened at the bottom of the groove of the positioning member 2. Abutting grooves 72 are provided on the end faces of the abutting member 3 and the clamping member 4 that abut against the positioning member 2. The abutting grooves 72 correspond to the position of the positioning hole 71. A positioning rod 7 is inserted into the positioning hole 71 and abuts against the corresponding abutting groove 72. The abutting groove 72 is set as a long strip hole, and the opening direction of the abutting groove 72 is perpendicular to the depth direction of the positioning member 2. Since when the clamping member 4 is inserted into the accommodating space 5, the clamping member 4 will drive the abutting member 3 to gradually approach the center position of the positioning member 2, this causes relative sliding between the positioning rod 7 and the abutting groove 72. The setting of the long-strip abutting groove 72 limits the sliding path of the positioning rod 7 in the abutting groove 72, enabling both the clamping member 4 and the abutting member 3 to move stably and clamp the carbon fiber prepreg; the number of the positioning holes 71 is set to be multiple, and the positioning rod 7 and the abutting grooves 72 respectively correspond to the multiple positioning holes 71; the setting of the positioning rod 7, the positioning hole 71, and the abutting groove 72 makes the movement paths of the positioning member 2 and the clamping member 4 fixed when the positioning member 2 pushes the clamping member 4 to be inserted into the accommodating space 5, making the cooperation process between the two positioning members 2 more stable. Combining with the functions of the limiting protrusion 6 and the limiting groove 61, it limits the accurate insertion of the clamping member 4 into the accommodating space 5 and at the same time abuts against the groove wall of the positioning groove 21 and the abutting member 3. Combining with the core layer mold 1, it jointly stably clamps and fixes the carbon fiber prepreg, realizing the shaping of carbon fiber composites.

Claims

1. A carbon fiber cabin molding die, characterized in that: It includes a core layer mold and an outer layer mold; the outer layer mold forms an installation space for installing the core layer mold, and a molding cavity is formed between the core layer mold and the outer layer mold for forming the carbon fiber cabin body; The carbon fiber cabin molding mold also includes a clamping piece, which is clamped in the molding cabin. The clamping piece includes a wedge-shaped structure, which is inserted between the core layer mold and the outer layer mold to press the carbon fiber prepreg close to the core layer mold.

2. The carbon fiber cabin molding die according to claim 1, characterized in that: The carbon fiber cabin molding mold also includes an abutment member, which is arranged in the molding cavity. One side of the abutment member is used to abut against the carbon fiber prepreg outside the core layer mold; and the other side is used to abut against the clamping member.

3. The carbon fiber cabin molding die according to claim 1, characterized in that: The outer layer mold includes two positioning pieces, and the two positioning pieces are arranged to surround and form the installation space.

4. The carbon fiber cabin molding die according to claim 3 is characterized in that: The positioning piece is provided with a positioning groove, and the groove openings of the two positioning grooves abut against each other to form an installation space. The positioning groove is configured as a trapezoidal structure groove with a wider groove opening and a narrower groove bottom.

5. The carbon fiber cabin molding die according to claim 4, characterized in that: The clamping member includes a middle portion and side ends, and both ends of the middle portion are fixedly connected to one of the side ends respectively; the side ends gradually form a pointed end in a direction away from the middle portion, and the two side ends respectively extend into the positioning grooves of the two positioning members.

6. The carbon fiber cabin molding die according to claim 4, characterized in that: A limiting protrusion is arranged on the groove wall of the positioning groove, and the limiting protrusion extends from the groove opening to the groove bottom in a long strip shape; and a limiting groove corresponding to the limiting protrusion is arranged on the clamping member.

7. The carbon fiber cabin molding die according to claim 4, characterized in that: The positioning member is provided with a positioning hole, and the clamping member and the abutting member are provided with abutting grooves corresponding to the positioning hole, the abutting grooves extend in a direction perpendicular to the depth of the positioning grooves, a positioning rod is arranged in the positioning hole, and one end of the positioning rod is inserted into the corresponding abutting groove.

8. The carbon fiber cabin molding die according to claim 7, characterized in that: The number of the positioning holes is set to be multiple.

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