Part positioning device for carbon fiber composite product

Abstract

The utility model belongs to the technical field of carbon fiber processing, and particularly relates to a part positioning device for a carbon fiber composite product. Comprising an embedded nut and a fixing screw, the embedded nut comprises an outer part structure and an inner part structure, the outer part structure is connected with the inner part structure, the outer part structure is located on the outer side of the carbon fiber composite product, and the inner part structure is located in a cavity of the carbon fiber composite product. A positioning hole is formed in the outer part structure, the fixing screw is used for fixing the outer part structure and a mold through the positioning hole, a threaded hole is formed in the inner part structure, and the threaded hole is used for being connected with a part. By means of the threaded hole formed in the embedded nut, the part and the carbon fiber composite product can be directly assembled, accurate positioning of the part is facilitated, the carbon fiber composite product does not need to be punched, and the structural strength of the carbon fiber composite product is enhanced.

Description

Technical Field

[0001] The utility model belongs to the technical field of carbon fiber processing, and particularly relates to a component positioning device for a carbon fiber composite material product. Background Art

[0002] The existing technologies for installing parts on the inner surface of carbon fiber composite products are mainly as follows: after the carbon fiber composite product is formed, parts with threaded holes are bonded to the inner surface with structural adhesive, or holes are punched after the carbon fiber composite product is formed and parts are fixed with fasteners.

[0003] However, gluing parts with threaded holes to the inner surface of carbon fiber composite products cannot guarantee the installation dimensional accuracy of parts and the flatness of the bonding surface is difficult to constrain. When fasteners are used to fix parts, the fasteners are exposed on the surface of carbon fiber composite products, which affects the appearance of the product and is not conducive to placement and assembly. It is not suitable for products with special requirements such as sealing. Therefore, it is necessary to design a component positioning device for carbon fiber composite products to solve the above problems. Utility Model Content

[0004] In view of the above problems, the utility model provides a component positioning device for carbon fiber composite material products to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a component positioning device for a carbon fiber composite product, applied to a carbon fiber composite product, comprising an embedded nut and a fixing screw, the embedded nut comprising an outer substructure and an inner substructure, the outer substructure being connected to the inner substructure, the outer substructure being located on the outside of the carbon fiber composite product, the inner substructure being located in the mold cavity of the carbon fiber composite product, a positioning hole being provided on the outer substructure, the fixing screw being used to fix the outer substructure to the mold through the positioning hole, and a threaded hole being provided on the inner substructure, the threaded hole being used to connect components.

[0006] Furthermore, the positioning hole is used to place a filler.

[0007] Furthermore, the outer part structure is configured as a truncated cone structure, the inner part structure is configured as a cylindrical structure, the outer part structure and the inner part structure are coaxially configured, and the diameter of the outer part structure is greater than the diameter of the inner part structure.

[0008] Furthermore, the outer surface of the outer structure is knurled and drafted.

[0009] Furthermore, the component positioning device for the carbon fiber composite material product also includes a top screw, and the top screw is used to be arranged in the threaded hole.

[0010] Furthermore, the height of the carbon cloth attached to the cavity of the carbon fiber composite material product is lower than the height of the inner structure.

[0011] Furthermore, a connecting groove is provided at the rear end of the outer structure, and the front end of the inner structure is threadedly connected to the connecting groove.

[0012] Furthermore, the left and right sides of the outer wall of the inner structure are both provided with active surfaces.

[0013] Technical effects and advantages of the utility model:

[0014] 1. An embedded nut is set in the cavity of the carbon fiber composite product. The threaded hole opened on the embedded nut can be used to directly assemble the parts and the carbon fiber composite product, which is conducive to the precise positioning of the parts. There is no need to punch holes in the carbon fiber composite product, which is conducive to enhancing the structural strength of the carbon fiber composite product.

[0015] 2. By providing the embedded nut with an outer part structure and an inner part structure, and utilizing the outer part structure to be higher than the outer surface of the carbon fiber composite material product, the effective thread depth of the embedded nut can be increased.

[0016] 3. By arranging the outer substructure on the outside of the carbon fiber composite product and the inner substructure in the cavity of the carbon fiber composite product, the space occupied by the embedded nut in the cavity of the carbon fiber composite product can be reduced, making it easier to assemble parts within the specified size space.

[0017] 4. By arranging the outer substructure on the outside of the carbon fiber composite product and the inner substructure in the cavity of the carbon fiber composite product, the distance between the parts and the outer surface of the carbon fiber composite product can be reduced to avoid affecting the coordination between the circuit and the parts.

[0018] Other features and advantages of the utility model will be described in the following description, and part of the structure will become obvious from the description, or will be understood by implementing the utility model. The purpose and other advantages of the utility model can be realized and obtained by the structures indicated in the description and the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 A diagram showing a use state of a component positioning device for a carbon fiber composite material product according to an embodiment of the utility model;

[0021] Figure 2 Another use state diagram of the component positioning device for carbon fiber composite material products according to an embodiment of the utility model is shown;

[0022] Figure 3 A structural schematic diagram of a component positioning device for a carbon fiber composite material product according to another embodiment of the utility model is shown.

[0023] Figure numerals: 1. embedded nut; 11. external part structure; 111. connection groove; 12. internal part structure; 121. threaded hole; 122. active surface; 2. fixing screw; 3. filler; 4. top screw; 5. mold; 6. carbon fiber composite material product. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the structural embodiment of the utility model, not all the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] like Figures 1 to 3 As shown, a component positioning device for a carbon fiber composite product according to an embodiment of the utility model is applied to a carbon fiber composite product 6, including an embedded nut 1 and a fixing screw 2, the embedded nut 1 including an outer substructure 11 and an inner substructure 12, the outer substructure 11 is connected to the inner substructure 12, the outer substructure 11 is located on the outside of the carbon fiber composite product 6, the inner substructure 12 is located in the mold cavity of the carbon fiber composite product 6, a positioning hole is provided on the outer substructure 11, the fixing screw 2 is used to fix the outer substructure 11 to the mold 5 through the positioning hole, and a threaded hole 121 is provided on the inner substructure 12, the threaded hole 121 is used to connect components.

[0026] Specifically, the mold 5 is used to integrally form the carbon fiber composite material product 6 and the embedded nut 1 .

[0027] In this embodiment, by setting the embedded nut 1 as the external substructure 11 and the internal substructure 12, by setting the fixing screw 2, and opening the positioning hole on the external substructure 11, it is convenient to use the fixing screw 2 to pass through the positioning hole to fix the embedded nut 1 to the mold 5, which is conducive to the integral molding of the carbon fiber composite material product 6 and the embedded nut 1 through the mold 5. The internal substructure 12 is set in the cavity of the carbon fiber composite material product 6, and the threaded hole 121 opened on the internal substructure 12 can be used to directly assemble the parts and the carbon fiber composite material product 6. Compared with the method of bonding the parts with structural adhesive, it is conducive to achieving accurate positioning of the parts, and compared with the method of assembling the parts with fasteners, it is not necessary to punch the carbon fiber composite material product 6, which is conducive to enhancing the structural strength of the carbon fiber composite material product 6.

[0028] Secondly, by providing the outer substructure 11 and utilizing the fact that the outer substructure 11 is higher than the outer surface of the carbon fiber composite material product 6 , the effective thread depth of the embedded nut 1 can be increased.

[0029] In addition, by setting the embedded nut 1 as an external substructure 11 and an internal substructure 12, and setting the external substructure 11 on the outside of the carbon fiber composite material product 6, and setting the internal substructure 12 in the cavity of the carbon fiber composite material product 6, the space occupied by the embedded nut 1 in the cavity of the carbon fiber composite material product 6 can be reduced, which facilitates the assembly of parts within the specified size space. It can also reduce the distance between the parts and the outer surface of the carbon fiber composite material product 6 to avoid affecting the mutual coordination between the circuit and the parts.

[0030] Alternatively, if Figure 2 As shown, the positioning hole is used to set the filler 3.

[0031] In this embodiment, after the carbon fiber composite product 6 and the embedded nut 1 are integrally formed, the fixing screws 2 on the outer structure 11 are removed, and the filler 3 is filled into the positioning hole to ensure that the outer surface of the carbon fiber composite product 6 is smooth.

[0032] Alternatively, if Figures 1 to 3 As shown, the outer substructure 11 is configured as a truncated cone structure, the inner substructure 12 is configured as a cylindrical structure, the outer substructure 11 and the inner substructure 12 are configured coaxially, and the diameter of the outer substructure 11 is greater than the diameter of the inner substructure 12 .

[0033] Specifically, the diameter, draft angle, and thickness of the outer substructure 11 are designed to be in a relative proportional relationship, otherwise the carbon fiber composite material product 6 will not be smoothly separated from the mold 5 and the carbon fiber composite material product 6 will have a poor appearance. The diameter and thickness of the inner substructure 12 need to be designed according to different size requirements.

[0034] In this embodiment, the diameter of the inner structure 12 is smaller than that of the outer structure 11 in order to increase the contact area between the carbon cloth and the nut to increase the strength of the carbon fiber composite material product 6 after molding.

[0035] Optionally, the outer surface of the outer substructure 11 is knurled and drafted.

[0036] In this embodiment, by knurling and demolding the outer surface of the outer part structure 11, the carbon fiber composite material product 6 is easily separated from the mold 5 after being formed, while increasing the bonding strength between the carbon cloth and the embedded nut 1.

[0037] Alternatively, if Figures 1 to 3 As shown, the component positioning device of the carbon fiber composite material product further includes a top screw 4 , and the top screw 4 is used to be arranged in the threaded hole 121 .

[0038] In this embodiment, during the molding process of the carbon fiber composite material product 6, the top screw 4 is arranged in the threaded hole 121, so as to prevent the resin from entering the threaded hole 121 and blocking the threaded hole 121. After the carbon fiber composite material product 6 is molded, the top screw 4 is removed, so that the parts can be accurately connected with the carbon fiber composite material product 6 through the threaded hole 121.

[0039] Optionally, the height of the carbon cloth attached to the cavity of the carbon fiber composite material product 6 is lower than the height of the internal substructure 12 .

[0040] In this embodiment, if the carbon cloth in the cavity of the carbon fiber composite product 6 is flush with or higher than the internal substructure 12 of the embedded nut 1, after the carbon fiber composite product 6 is formed, resin and carbon cloth will remain on the assembly surface of the internal substructure 12 of the embedded nut 1, making the assembly surface not flat enough and affecting the assembly of parts. By setting the carbon cloth in the cavity of the carbon fiber composite product 6 to a height lower than the internal substructure 12, the retention of resin and carbon cloth can be prevented, thereby ensuring the flatness of the assembly surface and facilitating the assembly of parts.

[0041] Alternatively, if Figure 3 As shown, a connection groove 111 is formed at the rear end of the outer structure 11 , and a front end of the inner structure 12 is threadedly connected to the connection groove 111 .

[0042] In this embodiment, in the process of integrally forming the carbon fiber composite material product 6 and the embedded nut 1 using the mold 5, the threaded hole 121 on the internal substructure 12 may be damaged, making it difficult to assemble the parts to the carbon fiber composite material product 6. By providing a connecting groove 111 at the rear end of the external substructure 11, the interior of the connecting groove 111 is provided with a thread, and a corresponding thread is provided at the front end of the internal substructure 12, and the front end of the internal substructure 12 is threadedly connected to the connecting groove 111, when the threaded hole 121 on the internal substructure 12 is damaged, the internal substructure 12 with the threaded hole 121 intact can be used to replace the damaged internal substructure 12, so as to facilitate the assembly of parts to the carbon fiber composite material product 6.

[0043] Alternatively, if Figure 3 As shown, the left and right sides of the outer wall of the inner substructure 12 are both provided with action surfaces 122 .

[0044] Specifically, the action surface 122 is a plane.

[0045] In this embodiment, by setting the action surface 122 on the left and right sides of the outer wall of the inner substructure 12, it is convenient to apply force to the inner substructure 12 by manually or using tools such as a wrench to act on the action surface 122, thereby facilitating the disassembly and assembly of the inner substructure 12.

[0046] Working principle: During the laying and molding process of the carbon fiber composite product 6, the designed number of layers of carbon cloth are laid on the mold 5; the outer part structure 11 of the embedded nut 1 is fixed to the mold 5 by passing the fixing screws 2 through the positioning holes; the remaining number of layers of carbon cloth are laid; after the laying is completed, the threaded hole 121 is blocked by the top screw 4 to prevent the resin from entering during the molding process; after the molding of the carbon fiber composite product 6 is completed, the screws between the mold 5 and the embedded nut 1 are removed, and then the product is separated from the mold 5.

[0047] After the carbon fiber composite product 6 is formed, the mold 5 is removed and the positioning hole is filled with the filler 3 to ensure that the outer surface of the carbon fiber composite product 6 is flat; the top screw 4 is removed to expose the threaded hole 121, and the carbon cloth in the product cavity is lower than the embedded nut 1 to ensure the flatness of the assembly surface.

[0048] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the structural technical features therein; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A component positioning device for a carbon fiber composite material product, applied to a carbon fiber composite material product (6), characterized in that: The invention comprises an embedded nut (1) and a fixing screw (2), wherein the embedded nut (1) comprises an outer part structure (11) and an inner part structure (12), wherein the outer part structure (11) is connected to the inner part structure (12), wherein the outer part structure (11) is located on the outer side of the carbon fiber composite material product (6), and the inner part structure (12) is located in the mold cavity of the carbon fiber composite material product (6), wherein a positioning hole is provided on the outer part structure (11), and the fixing screw (2) is used to fix the outer part structure (11) to the mold (5) through the positioning hole, and wherein the inner part structure (12) is provided with a threaded hole (121), and the threaded hole (121) is used to connect parts.

2. The component positioning device for carbon fiber composite material products according to claim 1, characterized in that: The positioning hole is used to arrange a filler (3).

3. The component positioning device for carbon fiber composite material products according to claim 2, characterized in that: The outer substructure (11) is configured as a truncated cone-shaped structure, and the inner substructure (12) is configured as a cylindrical structure. The outer substructure (11) and the inner substructure (12) are coaxially arranged, and the diameter of the outer substructure (11) is greater than the diameter of the inner substructure (12).

4. The component positioning device for carbon fiber composite material products according to claim 3, characterized in that: The outer surface of the outer substructure (11) is knurled and drafted.

5. The component positioning device for carbon fiber composite material products according to claim 4, characterized in that: It also includes a top screw (4), and the top screw (4) is used to be arranged in the threaded hole (121).

6. The component positioning device for carbon fiber composite material products according to claim 5, characterized in that: The height of the carbon cloth attached to the cavity of the carbon fiber composite material product (6) is lower than the height of the internal structure (12).

7. The component positioning device for a carbon fiber composite material product according to any one of claims 1 to 6, characterized in that: The rear end of the outer structure (11) is provided with a connection groove (111), and the front end of the inner structure (12) is threadedly connected to the connection groove (111).

8. The component positioning device for carbon fiber composite material products according to claim 7, characterized in that: The left and right sides of the outer wall of the inner substructure (12) are both provided with action surfaces (112).

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