A carbon fiber mold for forming an automobile rear bumper

Abstract

The application relates to the field of carbon fiber molds, in particular to a carbon fiber mold for forming an automobile rear bumper, which comprises a bottom die, a main forming groove which is consistent with the outer shape contour of the automobile rear bumper is arranged on the bottom die; a first side wing forming part is arranged at the top of the bottom die, the first side wing forming part is used for accurately forming the side wing structure on one side of the automobile rear bumper; a second side wing forming part is arranged at the bottom of the bottom die, the second side wing forming part is used for accurately forming the side wing structure on the other side of the automobile rear bumper; an end forming part is arranged at the end of the bottom die, the end forming part is used for forming the end shape of the automobile rear bumper; the first side wing forming part, the second side wing forming part, the end forming part and the main forming groove are collectively enclosed to form a cavity for forming the automobile rear bumper. The application improves the forming precision, enhances the stability of the mold and prolongs the service life.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of carbon fiber molds, in particular to a carbon fiber mold for forming an automobile rear bumper. BACKGROUND

[0002] In the current automobile manufacturing industry, lightweight has become an important development trend to reduce fuel consumption and improve vehicle performance. Carbon fiber resin materials are widely used in the manufacturing of automobile parts due to their high strength, low density and good corrosion resistance, especially in the manufacturing of automobile rear bumpers. As an important part of the automobile body, the automobile rear bumper not only has the function of protecting the tail structure of the vehicle, but also affects the appearance and safety of the whole vehicle. Therefore, how to ensure the forming precision and quality of the rear bumper has become one of the key problems.

[0003] The overall structure of the automobile rear bumper is usually an irregular curved surface structure to meet the needs of vehicle appearance and aerodynamics. At the same time, various bolt holes and first positioning holes need to be set on the rear bumper to facilitate connection and positioning with other parts of the automobile tail. In addition, the edge of the rear bumper has multiple protruding inserts, which are used to cooperate with the grooves of the automobile tail to firmly fix the rear bumper to the tail of the automobile.

[0004] The carbon fiber mold in the related art often has difficulty in ensuring the precision and consistency of the cavity when forming complex curved surface structures. This may result in unevenness of the curved surface of the formed bumper, and even deformation and other problems. In addition, for the detailed parts such as bolt holes, first positioning holes and inserts on the bumper, the mold in the related art also has certain difficulty in forming, and is prone to size deviation or inaccurate shape. SUMMARY

[0005] In order to overcome the above technical problems, the present application provides a carbon fiber mold for forming an automobile rear bumper.

[0006] The carbon fiber mold for forming an automobile rear bumper provided by the present application adopts the following technical scheme:

[0007] The application discloses a carbon fiber mold for forming an automobile rear bumper, which comprises a bottom die, wherein a main forming groove which is consistent with the contour of the automobile rear bumper is formed in the bottom die; a first side wing forming part is arranged on the top of the bottom die and is used for accurately forming the side wing structure on one side of the automobile rear bumper; a second side wing forming part is arranged on the bottom of the bottom die and is used for accurately forming the side wing structure on the other side of the automobile rear bumper; an end forming part is arranged on the end of the bottom die and is used for forming the end shape of the automobile rear bumper; and the first side wing forming part, the second side wing forming part, the end forming part and the main forming groove are collectively enclosed to form a cavity for forming the automobile rear bumper.

[0008] By adopting the technical scheme, the main forming groove on the bottom die is consistent with the contour of the automobile rear bumper, the high precision and consistency of the main cavity are ensured, and the problem of uneven or deformed bumper curved surface after forming is avoided. The first side wing forming part and the second side wing forming part are respectively arranged on the top and the bottom of the bottom die, the side wing structures on the two sides of the automobile rear bumper can be accurately formed, and the shape precision of the side wing part is improved. The end forming part is arranged on the end of the bottom die, the end shape of the automobile rear bumper can be accurately formed, and the details of the end part meet the requirements. The first side wing forming part, the second side wing forming part, the end forming part and the main forming groove are collectively enclosed to form the cavity, the cavity structure of the whole mold is more complete and accurate, and the forming quality is improved. In addition, the mold is suitable for the process of material pasting and baking forming, the production efficiency and product quality are improved. The main forming groove, the first side wing forming part, the second side wing forming part and the end forming part on the bottom die jointly form a complete cavity, and the accurate forming of each part of the automobile rear bumper is ensured.

[0009] Optionally, a curved surface forming groove for forming the automobile rear bumper is formed on one side of the first side wing forming part close to the cavity, and the curved surface forming groove is a symmetrical structure.

[0010] By adopting the technical scheme, the first side wing forming part is provided with a curved surface forming groove for forming the automobile rear bumper on one side close to the cavity, and the curved surface forming groove is a symmetrical structure. The side wing structures on the two sides of the automobile rear bumper can be more accurately formed, and the symmetry and aesthetics of the automobile rear bumper are ensured. Meanwhile, the symmetrical structure is also helpful to improve the stability and service life of the mold and reduce the production error caused by asymmetry.

[0011] Optionally, a plurality of lifting rings are arranged on the first side wing forming part.

[0012] By adopting the technical scheme, the plurality of lifting rings arranged on the first side wing forming piece can facilitate the carrying and installation of the mold, and improve the operation efficiency and safety. The lifting rings make the mold more stable during hoisting, and reduce the risk of mold damage caused by improper operation.

[0013] Optionally, the second side wing forming piece comprises a plurality of forming seats, and each forming seat is fixed to the bottom mold and is provided with a forming assembly for forming the plug-in connector.

[0014] By adopting the technical scheme, the second side wing forming piece is composed of a plurality of forming seats, each forming seat is fixed to the bottom mold and is provided with a forming assembly for forming the plug-in connector. This makes the forming of the plug-in connector more accurate and stable, improves the precision and consistency of the mold, thereby ensuring that the formed automobile rear bumper plug-in connector is accurate in position and consistent in shape, and enhancing the connection reliability of the rear bumper and the tail of the automobile.

[0015] Optionally, the forming assembly comprises a plurality of forming protrusions, each forming protrusion is fixed to the forming seat, and each forming protrusion is provided with a forming groove close to one side of the main forming groove, and the forming groove is matched with the shape of the plug-in connector.

[0016] By adopting the technical scheme, the forming assembly comprises a plurality of forming protrusions, each forming protrusion is fixed to the forming seat, and each forming protrusion is provided with a forming groove close to one side of the main forming groove, and the forming groove is matched with the shape of the plug-in connector. This makes the forming protrusion accurately form the plug-in connector on the bumper, ensures that the shape and position of the plug-in connector are highly consistent, thereby improving the stability and reliability of the bumper installation.

[0017] Optionally, a plurality of first positioning grooves are arranged on the bottom mold, the forming seats correspond to the first positioning grooves one by one, and the outer side wall of the forming seat is in contact with the inner side wall of the first positioning groove.

[0018] By adopting the technical scheme, the first positioning groove enables the forming seat to be accurately positioned, ensures the relative position between the forming seat and the bottom mold to be stable, thereby improving the forming precision and consistency. In addition, the outer side wall of the forming seat is in close contact with the inner side wall of the first positioning groove, which further enhances the stability of the structure, prevents displacement during the forming process, and ensures the accuracy of the size and shape of the formed piece.

[0019] Optionally, a second positioning groove is arranged at the end of the bottom mold, and the outer side wall of the end forming piece is in contact with the inner side wall of the second positioning groove.

[0020] By adopting the technical scheme, the outer side wall of the end forming piece abuts against the inner side wall of the second positioning groove of the bottom mold, accurate positioning between the end forming piece and the bottom mold is ensured, forming precision and consistency are improved, forming errors caused by position deviation are avoided, and thus the forming quality of the automobile rear bumper is improved.

[0021] Optionally, an end of the first side wing forming piece extends beyond an end of the bottom mold, a top of the end forming piece abuts against a surface of the first side wing forming piece, and the end forming piece is fixedly connected with the first side wing forming piece.

[0022] By adopting the technical scheme, the end of the first side wing forming piece extends beyond the end of the bottom mold, so that the end forming piece can better butt against the first side wing forming piece, and the shape of the end of the automobile rear bumper after forming is more accurate. The top of the end forming piece abuts against the surface of the first side wing forming piece, the contact area between the two is increased, and the stability and reliability of the mold are improved. The end forming piece is fixedly connected with the first side wing forming piece, further enhancing the rigidity and stability of the entire mold, preventing displacement or deformation during the forming process, and thus ensuring the quality of the formed product.

[0023] Optionally, a first positioning column is fixedly arranged on the end forming piece, and a first positioning hole is formed in the first side wing forming piece, and the first positioning column is inserted into the first positioning hole.

[0024] By adopting the technical scheme, the positioning between the end forming piece and the first side wing forming piece is more accurate and reliable, the relative positions of the components during the forming process are stable, and the assembly precision and forming quality of the mold are improved. Specifically, the insertion of the first positioning column into the first positioning hole effectively prevents displacement during the forming process, and ensures the size and shape consistency of the formed bumper.

[0025] Optionally, a plurality of support columns are fixedly arranged on the bottom mold, and a connecting piece is fixedly arranged on the support column.

[0026] By adopting the technical scheme, the plurality of support columns fixedly arranged on the bottom mold can enhance the rigidity and stability of the mold, and avoid deformation caused by uneven stress during the forming process. The connecting piece fixedly arranged on the support column can be conveniently connected with other equipment or devices, improving the installation and disassembly efficiency of the mold, and thus improving the production efficiency and service life of the mold.

[0027] In summary, the present application has at least one of the following beneficial technical effects:

[0028] 1. The application discloses a carbon fiber mold for forming a rear bumper of an automobile, which comprises a base mold, a main forming groove, a first side wing forming part, a second side wing forming part and an end forming part.

[0029] 2. The end forming part is arranged at the end of the base mold, and cooperates with the first side wing forming part, the second side wing forming part and the main forming groove to form a forming cavity, so that the end shape of the rear bumper of the automobile is accurately formed, the overall forming quality is improved, and problems caused by inaccurate end shape are avoided.

[0030] 3. The cooperation among the first side wing forming part, the second side wing forming part and the end forming part enables the mold to better adapt to the requirements of the complex curved surface structure of the rear bumper of the automobile, improves the forming efficiency and the yield, and reduces the difficulty of subsequent processing and assembly. BRIEF DESCRIPTION OF DRAWINGS

[0031] Figure 1 It is a structure schematic view of the carbon fiber mold for forming the rear bumper of the automobile in the embodiment of the application.

[0032] Figure 2 It is a structure schematic view of the carbon fiber mold for forming the rear bumper of the automobile in the embodiment of the application.

[0033] Figure 3 It is a structure schematic view of the first side wing forming part in the embodiment of the application.

[0034] Figure 4 It is a structure schematic view of the second side wing forming part in the embodiment of the application.

[0035] Figure 5 It is a structure schematic view of the base mold in the embodiment of the application.

[0036] Figure 6 It is a structure schematic view of the end forming part in the embodiment of the application.

[0037] BRIEF DESCRIPTION OF DRAWINGS

[0038] 1, base mold; 11, main forming groove; 12, first positioning groove; 13, second positioning groove; 14, supporting column; 15, connecting piece; 16, second positioning column; 2, first side wing forming part; 21, curved surface forming groove; 22, lifting ring; 23, first positioning hole; 24, first holding column; 25, second positioning hole; 3, second side wing forming part; 31, forming seat; 32, forming assembly; 321, forming protrusion; 322, forming groove; 4, end forming part; 41, first positioning column; 42, second holding column. Detailed Implementation

[0039] The following is in conjunction with the appendix Figures 1-6 This application will be described in further detail.

[0040] The terminology used in this application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. Unless otherwise defined, the technical or scientific terms used in this application should have the ordinary meaning understood by one of ordinary skill in the art to which this application pertains. The terms "first," "second," and similar terms used in this application do not indicate any order, quantity, or importance, but are merely used to distinguish different components.

[0041] This application discloses a carbon fiber mold for molding a car rear bumper. (See also...) Figure 1 The carbon fiber mold used for molding automotive rear bumpers includes a bottom mold 1, which can be made of stainless steel to increase its wear resistance and high-temperature resistance. Alternatively, aluminum alloy can be used to reduce the weight of the mold and improve production efficiency.

[0042] The bottom of the base mold 1 is integrally formed with three support pillars 14, which are spaced apart along the length of the base mold 1. The bottom end of each support pillar 14 is a flat structure, which increases the stability of the carbon fiber mold placement. The function of the support pillars 14 is to support and fix the entire mold to ensure its stability during the molding process. The support pillars 14 can be made of high-strength steel to withstand greater pressure.

[0043] Reference Figure 2 Each support column 14 has an L-shaped connector 15 fixedly installed on its side wall. The connector 15 is used to connect with other equipment and can be connected by thread or snap-fit ​​for easy disassembly and maintenance. The connector 15 can be made of stainless steel to improve its corrosion resistance and service life.

[0044] Reference Figure 1 and Figure 2 The bottom mold 1 has a main forming groove 11 that matches the outline of the rear bumper of the car. A first side wing forming part 2 is fixedly installed on the top of the bottom mold 1. The first side wing forming part 2 is used to precisely form the side wing structure on one side of the rear bumper of the car. A second side wing forming part 3 is fixedly installed on the bottom of the bottom mold 1. The second side wing forming part 3 is used to precisely form the side wing structure on the other side of the rear bumper of the car. End forming parts 4 are fixedly installed at both ends of the bottom mold 1. The end forming parts 4 are used to form the end shape of the rear bumper of the car. The first side wing forming part 2, the second side wing forming part 3, the end forming part 4, and the main forming groove 11 together form a cavity for forming the rear bumper of the car.

[0045] Reference Figure 3, the first side wing forming piece 2 is provided with a curved forming groove 21 for forming the rear bumper of the automobile near one side of the cavity. The curved forming groove 21 is of symmetrical structure, so that the side wing structure on both sides of the rear bumper of the automobile can be more accurately formed, ensuring the symmetry and aesthetics of the rear bumper of the automobile. At the same time, the symmetrical structure also helps to improve the stability and service life of the mold, reducing the production error caused by asymmetry.

[0046] With reference to Figure 1 and Figure 2 , a plurality of lifting rings 22 are arranged on the first side wing forming piece 2. The plurality of lifting rings 22 arranged on the first side wing forming piece 2 can facilitate the handling and installation of the mold, improving the operation efficiency and safety. The design of the lifting ring 22 makes the mold more stable during hoisting, reducing the risk of mold damage caused by improper operation.

[0047] With reference to Figure 1 and Figure 2 , a plurality of first holding columns 24 are arranged on the opposite sides of the first side wing forming piece 2, increasing the convenience of the workers in installing and dismounting the first side wing forming piece 2. A plurality of second holding columns 42 are fixedly arranged on the end forming piece 4, increasing the convenience of the workers in installing and dismounting the end forming piece 4.

[0048] With reference to Figure 1 , Figure 4 and Figure 5 , the second side wing forming piece 3 comprises a plurality of forming seats 31, and the plurality of forming seats 31 are fixed to the bottom die 1. The bottom die 1 is provided with a plurality of first positioning grooves 12, and the forming seat 31 corresponds to the first positioning groove 12 one by one. The outer side wall of the forming seat 31 is connected to the inner side wall of the first positioning groove 12. The arrangement of the first positioning groove 12 enables the forming seat 31 to be accurately positioned, ensuring the stability of the relative position between the forming seat 31 and the bottom die 1, thereby improving the forming precision and consistency. In addition, the outer side wall of the forming seat 31 is in close contact with the inner side wall of the first positioning groove 12, further enhancing the stability of the structure, preventing displacement during the forming process, and ensuring the accuracy of the size and shape of the forming piece.

[0049] With reference to Figure 4Each forming seat 31 is provided with a forming assembly 32 for forming the plug-in part, the forming assembly 32 includes a plurality of forming lugs 321, each of which is fixed to the forming seat 31, and each forming lug 321 is provided with a forming groove 322 near one side of the main forming groove 11, which is matched with the shape of the plug-in part. The forming assembly 32 includes a plurality of forming lugs 321, which are fixed to the forming seat 31, and each forming lug 321 is provided with a forming groove 322 near one side of the main forming groove 11, which is matched with the shape of the plug-in part. The forming lugs 321 can accurately form the plug-in part on the bumper, ensuring that the shape and position of the plug-in part are highly consistent, thereby improving the stability and reliability of the bumper installation.

[0050] With reference to Figure 1 and Figure 5 , the end of the bottom die 1 is provided with a second positioning groove 13, and the outer side wall of the end forming part 4 abuts the inner side wall of the second positioning groove 13. The outer side wall of the end forming part 4 abuts the inner side wall of the second positioning groove 13 of the bottom die 1, ensuring accurate positioning between the end forming part 4 and the bottom die 1, improving forming accuracy and consistency, avoiding forming errors caused by position deviation, and thus improving the forming quality of the automobile rear bumper.

[0051] With reference to Figure 1 , the end of the first side wing forming part 2 protrudes from the end of the bottom die 1, the top of the end forming part 4 abuts the surface of the first side wing forming part 2, and the end forming part 4 is fixedly connected with the first side wing forming part 2. The end of the first side wing forming part 2 protrudes from the end of the bottom die 1, so that the end forming part 4 can better butt with the first side wing forming part 2, ensuring that the shape of the automobile rear bumper after forming is more accurate. The top of the end forming part 4 abuts the surface of the first side wing forming part 2, increasing the contact area between them and improving the stability and reliability of the mold. The end forming part 4 is fixedly connected with the first side wing forming part 2, further enhancing the rigidity and stability of the entire mold, preventing displacement or deformation during the forming process, and thus ensuring the quality of the formed product.

[0052] With reference to Figure 3 and Figure 5The first positioning column 41 is integrally formed on the two end forming pieces 4, the lower surface of the first side wing forming piece 2 is provided with two first positioning holes 23, the first positioning column 41 corresponds to the first positioning hole 23 in one-to-one correspondence, and the first positioning column 41 is inserted and matched with the first positioning hole 23. The top of the bottom die 1 is integrally formed with a plurality of second positioning columns 16, the plurality of second positioning columns 16 are arranged at intervals along the length direction of the bottom die 1, the lower surface of the first side wing forming piece 2 is provided with a plurality of second positioning holes 25, the plurality of second positioning holes 25 are located between the two first positioning holes 23, and the plurality of second positioning holes 25 are arranged at intervals along the length direction of the bottom die 1. The second positioning column 16 corresponds to the second positioning hole 25 in one-to-one correspondence, and the second positioning column 16 is inserted and matched with the second positioning hole 25. The firmness of the installation of the first side wing forming piece 2 and the two end forming pieces 4 is ensured, and the assembly precision and the forming quality of the mold are improved.

[0053] The implementation principle of the embodiment is that the main forming groove 11 on the bottom die 1 is matched with the outer shape contour of the automobile rear bumper, the high precision and consistency of the main type are ensured, and the problems of uneven or deformation of the bumper curved surface after forming are avoided. The first side wing forming piece 2 and the second side wing forming piece 3 are respectively located at the top and the bottom of the bottom die 1, and can accurately form the side wing structure on both sides of the automobile rear bumper, and the shape precision of the side wing part is improved. The end forming piece 4 is arranged at the end of the bottom die 1, and can accurately form the end shape of the automobile rear bumper, and ensures that the details of the end meet the requirements. The first side wing forming piece 2, the second side wing forming piece 3, the end forming piece 4 and the main forming groove 11 jointly enclose a forming cavity, so that the cavity structure of the whole mold is more complete and accurate, and the forming quality is improved. In addition, the mold is suitable for the process of material sticking and baking forming, and the production efficiency and product quality are improved. The main forming groove 11 on the bottom die 1, the first side wing forming piece 2, the second side wing forming piece 3 and the end forming piece 4 jointly act to form a complete cavity, and ensure the accurate forming of each part of the automobile rear bumper.

[0054] The above are preferred embodiments of the application, and do not limit the protection scope of the application, therefore: any equivalent changes made on the structure, shape and principle of the application should be covered within the protection scope of the application.

Claims

1. A carbon fiber mold for molding an automobile rear bumper, characterized by: The utility model relates to a bottom die (1) is provided with the main forming groove (11) that accords with the appearance contour of automobile rear bumper, and the first side wing forming part (2) is arranged on the top of bottom die (1), and the second side wing forming part (3) is arranged on the bottom of bottom die (1), and the end forming part (4) is arranged on the end of bottom die (1), and the first side wing forming part (2), second side wing forming part (3), end forming part (4) and main forming groove (11) are enclosed and form a cavity for forming automobile rear bumper. The first side wing forming part (2) is provided with a curved surface forming groove (21) for forming automobile rear bumper on one side of the cavity. The second side wing forming part (3) comprises a plurality of forming seats (31), and the forming seats (31) are fixed on the bottom die (1). The forming assembly (32) comprises a plurality of forming blocks (321), and the forming blocks (321) are fixed on the forming seat (31).

2. A carbon fiber mold for molding an automobile rear bumper according to claim 1, characterized in that: The first side wing forming part (2) is provided with a plurality of lifting rings (22).

3. A carbon fiber mold for molding an automobile rear bumper according to claim 1, characterized in that: The bottom die (1) is provided with a plurality of first positioning grooves (12), and the forming seat (31) corresponds to the first positioning groove (12).

4. A carbon fiber mold for molding an automobile rear bumper according to claim 1, characterized by: The end of the bottom die (1) is provided with a second positioning groove (13), and the outer wall of the end forming part (4) abuts the inner wall of the second positioning groove (13).

5. A carbon fiber mold for molding an automobile rear bumper according to claim 1, characterized in that: The end of the first side wing forming part (2) protrudes from the end of the bottom die (1), the top of the end forming part (4) abuts the surface of the first side wing forming part (2), and the end forming part (4) is fixedly connected with the first side wing forming part (2).

6. A carbon fiber mold for molding an automobile rear bumper according to claim 5, characterized in that: The end forming part (4) is fixedly provided with a first positioning column (41), and the first side wing forming part (2) is provided with a first positioning hole (23), and the first positioning column (41) is inserted into the first positioning hole (23).

7. A carbon fiber mold for molding an automobile rear bumper according to claim 1, characterized by: The bottom die (1) is fixedly provided with a plurality of supporting columns (14), and the supporting column (14) is fixedly provided with a connecting piece (15).

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