A fender assembly and method of manufacturing the same

Abstract

The present application belongs to the technical field of automobile body parts, and particularly relates to a fender assembly and a preparation method thereof. The fender assembly comprises a fender, and the fender is provided with an upper mounting framework and a lower mounting framework. The fender, the upper mounting framework and the lower mounting framework are integrally formed, the split splicing structure is cancelled, the overall rigidity is high, the stress is uniform, and deformation is not easy. The arc-shaped upper mounting framework is adapted to the body streamline, and relies on two end positioning mounting seats, side wall connecting seats and a middle function integrated structure to realize multi-point integrated positioning and mounting of the body, the bumper, the radar sensor, the lamp and the guard plate. The lower mounting framework adopts a full-length structure to form an upper and lower clamping fixing system with the upper mounting framework, thereby greatly improving the assembly firmness and the fitting precision. The present application further provides a preparation method of the fender assembly, which is convenient for operators to understand and use.

Description

Technical Field

[0001] This invention belongs to the field of automotive body parts technology. Specifically, this invention relates to a fender assembly and its manufacturing method. Background Technology

[0002] The car fender is an important outer covering and load-bearing mounting component of the vehicle body. It is mainly used to cover the wheels, optimize the body line, and support the installation of various front accessories. It plays a key role in the overall appearance accuracy, assembly stability, and structural durability of the vehicle.

[0003] Currently, most automotive fenders in existing technologies adopt a split structure design. The split splicing results in a large number of assembly gaps and connection breaks, leading to poor overall structure and insufficient rigidity of the existing fenders. During vehicle operation, they are affected by vibration, airflow impact, and bump loads. The traditional split structure has low integration, a large number of parts, and a complicated assembly process. It relies on manual alignment and assembly, which easily leads to accumulated assembly errors. This results in uneven gaps between the fender and the bumper, side sheet metal, and headlights, affecting the overall appearance quality of the vehicle. Summary of the Invention

[0004] This invention is made to solve the above problems, and aims to provide a fender assembly with precise assembly positioning and high structural strength, as well as its manufacturing method. To achieve the above objective, the technical solution adopted by this invention is: a fender assembly, including a fender, wherein an upper mounting frame and a lower mounting frame are provided on the fender.

[0005] The upper mounting frame includes a positioning mounting seat and a side panel connecting seat. The positioning mounting seat is located at one end of the fender, and the side panel connecting seat is located at the other end of the fender. The fender is provided with a functional integrated structure.

[0006] The functional integrated structure includes a left mounting hole, an auxiliary mounting hole, a radar and sensor mounting hole, a main mounting hole, and a right mounting hole for the front bumper. These mounting holes are sequentially arranged on the fender.

[0007] The positioning mounting base includes a first mounting base plate, which is connected to the fender. The first mounting base plate is provided with a first reinforcing rib, bolt connection holes, and positioning grooves.

[0008] The side panel connecting seat includes a second mounting base plate, which is connected to the fender. A side panel reinforcing upright plate is provided on the second mounting base plate. A limit groove is provided on the second mounting base plate. Bolt holes are provided on the side panel reinforcing upright plate. An avoidance groove is provided at the connection between the side panel reinforcing upright plate and the bolt holes.

[0009] An integrated plate is provided on the first mounting base plate, a lower guard plate mounting support plate is provided on the integrated plate, and a fog light mounting boss is provided on the integrated plate.

[0010] The lower mounting frame includes a lower mounting plate, which is disposed on the fender and extends from one end of the fender to the other end. The lower mounting plate is provided with a first mounting hole.

[0011] The upper mounting frame is generally arc-shaped and is adapted to the upper edge contour of the fender. The outer side of the side connecting seat extends towards the side of the fender.

[0012] The fender, upper mounting frame, and lower mounting frame are integrally molded structures.

[0013] A method for manufacturing a fender assembly includes the following steps: Step S1: Prepare a molding mold, wherein the inner cavity of the mold matches the overall outline of the fender, the upper mounting frame, and the lower mounting frame; Step S2: Inject molding material into the mold to form a fender blank with a skeleton matrix in one piece; Step S3: Trim the formed workpiece to obtain the finished fender assembly.

[0014] The technical advantages of this invention are as follows: The one-piece molded fender assembly consists of a fender, an upper mounting frame, and a lower mounting frame. These components are integrally injection molded. The upper mounting frame has an arc-shaped structure that matches the upper edge contour of the fender, conforming to the vehicle's streamlined shape, evenly distributing stress, and preventing the upper edge of the fender from collapsing. Positioning mounting seats and side panel connecting seats are respectively provided at both ends of the upper mounting frame, with a functional integration structure in the middle. The positioning mounting seat includes a first mounting seat base, a first reinforcing rib, bolt connection holes, and a positioning groove, enabling pre-positioning and rigid locking of the front end, connecting the headlights and bumper supports. The integrated plate is provided with a lower guard plate mounting bracket and a fog light mounting boss, integrating protective components and light installation functions.

[0015] The side panel connecting seat consists of a second mounting base plate, a side panel reinforcing upright plate, a limiting groove, bolt holes, and a clearance groove. It extends laterally to increase the contact area, achieves multi-directional limiting at the rear end, and securely connects to the vehicle body side panel while avoiding assembly interference.

[0016] The functional integrated structure is arranged in sequence with the left mounting hole of the front bumper, auxiliary fixing hole, radar and sensor mounting hole, main fixing hole, and right mounting hole of the front bumper. It integrates bumper fixing, sensor assembly, and auxiliary locking into one unit, which simplifies the parts and assembly process, and ensures balanced force and high assembly accuracy.

[0017] The lower mounting frame consists of a full-length lower mounting plate and a first mounting hole, which improves the rigidity of the lower edge of the fender and prevents warping and deformation. The first mounting hole connects the body longitudinal beam and the chassis guard plate, forming an upper and lower clamping structure with the upper mounting frame, ensuring a firm and stable assembly. Attached Figure Description

[0018] This manual includes the following figures, which illustrate the following: Figure 1 This is a front view of a fender assembly according to the present invention; Figure 2 This is a schematic diagram of the back of a fender assembly according to the present invention; Figure 3 This is a schematic diagram of the internal structure of a fender assembly according to the present invention.

[0019] The markings in the diagram are as follows: 1. Fender; 2. Upper mounting frame; 21. Positioning mounting seat; 211. First mounting seat base plate; 212. First reinforcing rib; 213. Bolt connection hole; 214. Positioning groove; 22. Side panel connecting seat; 221. Second mounting seat base plate; 222. Side panel reinforcing upright plate; 223. Limiting groove; 224. Bolt hole; 225. Clearance groove; 3. Functional integrated structure; 301. Left mounting hole of front bumper; 302. Auxiliary fixing hole; 303. Radar and sensor mounting hole; 304. Main fixing hole; 305. Right mounting hole of front bumper; 4. Integrated plate; 401. Lower guard plate mounting bracket; 402. Fog light mounting boss; 5. Lower mounting frame; 501. Lower mounting plate; 502. First mounting hole. Detailed Implementation

[0020] The specific embodiments of the present invention will be further described in detail below with reference to the accompanying drawings, in order to help those skilled in the art to have a more complete, accurate and in-depth understanding of the inventive concept and technical solution of the present invention, and to facilitate its implementation.

[0021] like Figures 1-3As shown, a fender assembly includes a fender 1, on which an upper mounting frame 2 and a lower mounting frame 5 are provided. The upper mounting frame 2 adapts to the streamlined shape of the vehicle body and connects with the body, ensuring uniform gaps on the exterior of the vehicle body. The upper mounting frame 2 provides a rigid load-bearing foundation for all functional mounting holes, disperses assembly stress, and prevents the upper edge of the fender 1 from collapsing or deforming under stress. The lower mounting frame 5 ensures the overall rigidity of the lower edge of the fender 1, preventing the lower edge from warping or deforming. The lower mounting frame 5 provided on the fender 1 connects with the vehicle body longitudinal beams and chassis guard plates, achieving full-width fit and fixation of the lower part of the fender 1, forming an upper and lower clamping fixing system with the upper mounting frame 2, ensuring a firm and secure overall installation without loosening.

[0022] The upper mounting frame 2 includes a positioning mounting seat 21 and a side panel connecting seat 22. The positioning mounting seat 21 is located at one end of the fender 1, and the side panel connecting seat 22 is located at the other end of the fender 1. A functional integrated structure 3 is provided on the fender 1. The positioning mounting seat 2 is formed at the front end of the upper mounting frame 2 and is connected and fixed to the headlight bracket and the front bumper front mounting bracket. As a positioning and fixing integrated structure for the front end of the fender 1, the positioning mounting seat 2 completely limits and locks the upper part of the fender 1 to the front of the vehicle body. Together with the lower mounting frame 5, it achieves a stable overall assembly of the fender 1, continuously distributing vibration loads during driving and preventing local loosening and abnormal noise problems. The side panel connecting seat 22 bears the assembly load of the rear part of the fender 1 and the side panel of the vehicle body, limiting the vertical, horizontal, and longitudinal displacement deviation of the rear end of the fender 1; and adapts to the fitting requirements of the side panel of the vehicle body. The functional integrated structure 3 integrates bumper fixing, sensor assembly, auxiliary locking, and fixing functions, replacing the traditional decentralized independent bracket structure, reducing the number of parts and assembly processes; multiple sets of holes are linearly and regularly arranged, with uniform force distribution and high assembly symmetry, which can effectively distribute the upper assembly load, avoid structural deformation caused by excessive force at a single point, and improve the integration of vehicle parts and assembly efficiency.

[0023] The functional integrated structure 3 includes a left mounting hole 301, an auxiliary fixing hole 302, a radar and sensor mounting hole 303, a main fixing hole 304, and a right mounting hole 305 on the front bumper. The left mounting hole 301, the auxiliary fixing hole 302, the radar and sensor mounting hole 303, the main fixing hole 304, and the right mounting hole 305 on the front bumper are sequentially arranged on the fender 1.

[0024] The functional integration structure 3 is integrated and arranged in the middle area of ​​the fender 1, and is composed of the left mounting hole 301 of the front bumper, the auxiliary fixing hole 302, the radar and sensor mounting hole 303, the main fixing hole 304, and the right mounting hole 305 of the front bumper arranged in sequence.

[0025] The left mounting hole 301 of the front bumper is drilled through the left side of the fender 1, forming a continuous connection with the upper mounting frame 2. The left mounting hole 301 aligns with the mounting bracket at the left end of the front bumper, achieving alignment and bolt tightening between the fender 1 and the left side of the front bumper. This ensures precise alignment and fixation between the left end of the front bumper and the upper part of the fender 1, restraining vertical and longitudinal displacement of the left side of the bumper, preventing unsupported corners, warping, and excessive gaps, and ensuring a uniform appearance and clearance on the left side of the vehicle. During vehicle assembly, the mounting bracket at the left end of the front bumper aligns with the corresponding hole, and fasteners are inserted through the left mounting hole 301 to press and fix the left end of the bumper to the upper part of the fender 1, completing the left corner restraint and preventing loosening, abnormal noise, or displacement of the bumper corners due to driving vibrations.

[0026] The auxiliary fixing hole 302 is a one-piece circular through hole, located adjacent to the inner side of the left mounting hole 301 on the front bumper, and is integrally formed with the fender 1. It mates with the front mounting bracket in the engine compartment, achieving an auxiliary locking connection between the upper part of the fender 1 and the engine compartment. After locking at the main fixing point, the auxiliary fixing hole 302 further presses the fender 1 against the engine compartment mounting surface, eliminating assembly gaps, suppressing micro-shaking caused by driving vibrations, and improving the overall structural stability.

[0027] The radar and sensor mounting holes 303 are centrally located, with the hole shape matching the sensor's shape, and the hole outline is integrally formed with the upper mounting frame 2. The radar and sensor mounting holes 303 enable embedded integration of the radar and sensor, ensuring precise sensor placement and a secure fit, guaranteeing detection accuracy, while maintaining a clean and uniform vehicle appearance. During assembly, the sensor body is directly embedded inside the radar and sensor mounting holes 303, relying on the contour limits of the holes for positioning and securing the sensor, thus enabling the structural integration of functions such as vehicle distance measurement and parking assistance.

[0028] The main fixing hole 304 is a load-bearing through hole, integrally formed in the middle of the upper mounting frame 2. With a thick hole wall and a wide load-bearing base, it is the integral hole structure with the greatest stress on the upper part. It aligns with the front mounting base of the vehicle body, achieving rigid locking between the upper center of the fender 1 and the vehicle body base. During assembly, the main fixing hole 304 is used first for center alignment and locking, establishing the overall assembly benchmark for the upper part of the fender 1 and ensuring symmetrical stress on the left and right holes.

[0029] The right mounting hole 305 of the front bumper is opened through at the right end of the fender 1, symmetrically arranged with the left mounting hole 301 of the left front bumper, and integrally formed with the fender 1. The right mounting hole 305 of the front bumper symmetrically matches the left mounting hole 301 of the front bumper, constraining the assembly position of the right side of the bumper, balancing the assembly stress on the left and right sides, ensuring that the bumper fits flat and evenly, and eliminating problems such as uneven gaps, warping, and looseness on the right side.

[0030] After the main fixing hole 304 is fixed, the right end of the bumper is locked through the right mounting hole 305 of the front bumper. This, combined with the left hole, enables the left and right ends of the bumper to be simultaneously limited and fixed, thus completing the overall closed-loop assembly of the front exterior parts.

[0031] The positioning mounting base 21 includes a first mounting base plate 211, which is connected to the fender 1. The first mounting base plate 211 has a first reinforcing rib 212, bolt connection holes 214, and a positioning groove 213. The first mounting base plate 211 is integrally formed with the fender 1. It securely supports the first reinforcing rib 212, bolt connection holes 214, and positioning groove 213, while also conforming to the reference surface and aligning with the front mounting surface of the vehicle body. It serves as the load-bearing base for the entire front-end positioning mounting base. The first mounting base plate 21 bears the assembly locking force and driving vibration impact force of the front end of the fender 1, evenly distributing localized concentrated stress to the main body of the fender 1 and the upper mounting frame 2. This prevents cracking, collapse, and deformation caused by single-point stress concentration at the front end, providing a stable mounting reference for other auxiliary structures.

[0032] The first reinforcing rib 212 is integrally formed between the first mounting base plate 211 and the fender 1. The first reinforcing rib 212 improves the overall structural rigidity and bending resistance of the positioning mounting base 21, effectively resisting the alternating loads caused by vehicle bumps and vibrations, and preventing the first mounting base plate 211 from warping, the holes from deforming, and the mounting body from cracking. The bolt connection holes 214 are correspondingly connected to the headlight mounting bracket and the front bumper front support, realizing the rigid locking and fixing of the front end of the fender 1 to the front accessories of the vehicle body.

[0033] The positioning groove 213 is integrally formed on the surface of the first mounting base plate 211. The positioning groove 213 slides and engages with the positioning boss structure of the front engine compartment of the vehicle body to achieve the pre-positioning and engagement of the front end of the fender 1 with the vehicle body base. The positioning groove 213 plays the role of pre-positioning, preventing deviation, and assisting in alignment, reducing assembly difficulty, avoiding manual assembly deviation, and improving the assembly accuracy of the front end of the fender 1.

[0034] The side panel connecting seat 22 includes a second mounting base plate 221, which is connected to the fender 1. A side panel reinforcing upright plate 222 is provided on the second mounting base plate 221. A limiting groove 223 is provided on the second mounting base plate 221, and bolt holes 224 are provided on the side panel reinforcing upright plate 222. An avoidance groove 225 is provided at the connection between the side panel reinforcing upright plate 222 and the bolt holes 224. The second mounting base plate 221 serves as the basic load-bearing base of the side panel connecting seat 22, bearing the assembly locking force between the fender 1 and the side panel, the lateral vibration force of the vehicle, and the torsional force. It evenly distributes the concentrated stress at the rear end to the entire fender 1, preventing localized stress concentration cracking, panel collapse, and warping of the assembly surface at the rear end.

[0035] The side reinforcement plate 222 is vertically integrally formed on the surface of the second mounting base plate 221, forming an integrated L-shaped rigid support structure with the second mounting base plate 221. The side reinforcement plate 222 enhances the vertical stiffness and lateral bending resistance of the side connecting seat 22, effectively resisting the side compression of the vehicle body, the impact of airflow during driving, and lateral vibration loads.

[0036] The limiting groove 223 is integrally formed on the second mounting base plate 221. The limiting groove 223 and the second mounting base plate 221 are an integral structure. Before the bolts of the fender 1 are tightened, the limiting groove 223 is first aligned and engaged with the limiting protrusion of the side of the vehicle body. After the end pre-positioning calibration is completed, the rear assembly position and gap reference are locked, and then the bolts are tightened to avoid the plate displacement during the tightening process and achieve precise assembly.

[0037] Bolt hole 224 is a locking hole integrally opened on the side wall reinforcement plate 222. It is connected to the side wall sheet metal of the vehicle body by fastening bolts to achieve rigid locking and fixing of the rear end of the fender 1 to the side wall of the vehicle body.

[0038] The clearance groove 225 is integrally formed at the connection position between the side reinforcement plate 222 and the bolt hole 224. The clearance groove 225 avoids the bolt head during the bolt tightening process, prevents the bolt head from protruding and causing interference, and also makes it more aesthetically pleasing.

[0039] An integrated plate 4 is provided on the first mounting base plate 211, and a lower guard plate mounting bracket 401 is provided on the integrated plate 4. A fog light mounting boss 402 is provided on the integrated plate 4. The integrated plate 4 is bolted to the first mounting base plate 211. The integrated plate 4 integrates the traditionally scattered fog light mounting structure and lower guard plate mounting structure into the integrated plate 4, improving the structural integration, reducing the number of independent brackets, and reducing assembly errors.

[0040] The guard plate mounting bracket 401 is integrally formed on the surface of the integrated plate 4. The guard plate mounting bracket 401 realizes the end positioning and fixation of the front lower guard plate and mudguard of the vehicle, restrains the front end of the protective parts from shaking, drooping, and warping, improves the overall integrity of the chassis protection structure, prevents mud and water from splashing into the engine compartment, and enhances the deformation resistance of the fender 1.

[0041] The fog light mounting boss 402 is integrally formed on the surface of the integrated plate 4. The fog light mounting boss 402 provides an independent and precise installation positioning reference for the fog light, ensuring that the fog light is installed flat, without offset or loosening, and avoiding deviation in the beam angle.

[0042] The lower mounting frame 5 includes a lower mounting plate 501, which is mounted on the fender 1 and extends from one end of the fender 1 to the other. The lower mounting plate 501 has a first mounting hole 502. The lower mounting plate 501 and the fender 1 are integrally injection molded structures. The lower mounting plate 501 extends continuously from one end of the fender 1 to the other without any splicing or breaks, forming a rigid, integral plate. The lower mounting plate 501 is a long, continuous plate structure, which enhances the overall rigidity of the lower edge of the fender 1, effectively preventing warping, collapse, and outward deformation of the lower part of the fender 1, and avoiding localized stress concentration and cracking.

[0043] The first mounting hole 502 connects the body longitudinal beam, the lower body fixed bracket, and the lower guard plate base through bolt fasteners, thereby achieving multi-point rigid locking of the lower part of the fender 1.

[0044] The upper mounting frame 2 is generally arc-shaped, and its upper edge contour matches that of the fender 1. The outer side of the side connecting seat 22 extends towards the side of the fender 1. The arc-shaped contour of the upper mounting frame 2 perfectly matches the streamlined shape of the vehicle body. After assembly, the fender 1 connects smoothly with the surrounding body panels, headlights, and front bumper. The gaps and surface differences of the entire vehicle appearance are uniform and consistent, avoiding the problems of misalignment of corners and inconsistent gap sizes that are prone to occur with straight edge structures, thus improving the overall appearance quality of the vehicle.

[0045] The side panel connecting seat 22 extends to the side of the fender 1 on the outer side. The extended structure prolongs the lateral dimension, increases the contact surface and connection surface with the body side sheet metal, and improves the stability of the connection between the side panel connecting seat 22 and the body side sheet metal. After locking, it is not easy for local warping or separation to occur.

[0046] The fender 1, upper mounting frame 2, and lower mounting frame 5 are integrally molded structures. This integral molding ensures that the fender 1, upper mounting frame 2, and lower mounting frame 5 are completely integrated into a single unit, with no structural seams or connection breaks, allowing for continuous and smooth force transmission. Overall resistance to deformation, cracking, and bending is significantly improved, avoiding defects such as localized loosening, collapse, and warping. No additional independent brackets, fixing plates, or connectors are required, reducing the types and number of parts, lowering mold costs, material costs, and labor assembly costs, and improving assembly efficiency on the vehicle production line.

[0047] A method for manufacturing a fender assembly includes the following steps: Step S1: Prepare the molding mold. The inner cavity of the mold matches the overall contour of the fender 1, the upper mounting frame 2, and the lower mounting frame 5. The inner cavity of the mold completely replicates the outer contour of the fender 1, the arc structure of the upper mounting frame 2, and the full-length plate structure of the lower mounting frame 5. At the same time, it accurately positions the mounting base 21, the side connecting base 22, the functional integrated structure 3, and the integrated plate 4. Through the integrated mold cavity design, it is ensured that the relative positions of all structures are positioned by the mold at one time, eliminating positional deviations caused by subsequent processing. Step S2: Inject molding material into the mold to form a fender 1 blank with a skeleton base in one piece; inject the molten plastic molding material into the closed mold cavity under high pressure and at a uniform speed, and through pressure holding, cooling and shaping processes, make the material completely fill the mold with the outer contour of the fender 1, the upper mounting skeleton 2, the lower mounting skeleton 5, the positioning mounting seat 21, the side connecting seat 22, the functional integrated structure 3 and the integrated plate 4. After cooling and solidification, a one-piece fender 1 blank with integral connection, no breaks and no splicing is formed. Step S3: Trim the formed workpiece to obtain the finished fender 1 assembly; perform overall appearance trimming on the finished fender 1, complete the final product shaping and quality verification, and finally obtain a qualified one-piece fender assembly. The role and effect of the embodiments

[0048] The unibody fender assembly consists of a fender 1, an upper mounting frame 2, and a lower mounting frame 5. The fender 1, upper mounting frame 2, and lower mounting frame 5 are integrally injection molded. The upper mounting frame 2 has an arc-shaped structure that matches the upper edge contour of the fender 1, conforms to the vehicle's streamline, evenly distributes stress, and prevents the upper edge of the fender 1 from collapsing. The upper mounting frame 2 has positioning mounting seats 2 and side panel connecting seats 22 at both ends, and a functional integrated structure 3 in the middle. The positioning mounting seat 21 includes a first mounting seat base 211, a first reinforcing rib 212, bolt connection holes 214, and a positioning groove 213, enabling pre-positioning and rigid locking of the front end, and connecting the headlights and bumper supports. The integrated plate 4 has a lower guard plate mounting bracket 401 and a fog light mounting boss 402, integrating protective components and light installation functions.

[0049] The side panel connecting seat 22 is composed of a second mounting base plate 221, a side panel reinforcing upright plate 222, a limiting groove 223, a bolt hole 224, and a clearance groove 225. It extends laterally to increase the contact area, realizes multi-directional limiting at the rear end, and firmly connects to the side panel of the vehicle body, while avoiding assembly interference.

[0050] The functional integrated structure 3 has the left mounting hole 301, auxiliary fixing hole 302, radar and sensor mounting hole 303, main fixing hole 304, and right mounting hole 305 of the front bumper arranged in sequence. It integrates bumper fixing, sensor assembly, and auxiliary locking into one unit, which simplifies the parts and assembly process, and ensures balanced force and high assembly accuracy.

[0051] The lower mounting frame 5 consists of a full-length lower mounting plate 501 and a first mounting hole 502, which improves the rigidity of the lower edge of the fender 1 and prevents warping and deformation. The first mounting hole 502 connects the body longitudinal beam and the chassis guard plate, forming an upper and lower clamping structure with the upper mounting frame 2, ensuring a firm and stable assembly.

[0052] The present invention has been described above by way of example with reference to the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any non-substantial improvements made using the inventive concept and technical solution; or the direct application of the inventive concept and technical solution to other situations without modification, are all within the protection scope of the present invention.

Claims

1. A fender assembly, characterized in that, Includes a fender (1), on which an upper mounting frame (2) and a lower mounting frame (5) are provided.

2. The fender assembly according to claim 1, characterized in that: The upper mounting frame (2) includes a positioning mounting seat (21) and a side connecting seat (22). The positioning mounting seat (21) is located at one end of the fender (1), and the side connecting seat (22) is located at the other end of the fender (1). The fender (1) is provided with a functional integrated structure (3).

3. The fender assembly according to claim 2, characterized in that: The functional integrated structure (3) includes a left mounting hole (301), an auxiliary fixing hole (302), a radar and sensor mounting hole (303), a main fixing hole (304), and a right mounting hole (305) on the front bumper. The left mounting hole (301), the auxiliary fixing hole (302), the radar and sensor mounting hole (303), the main fixing hole (304), and the right mounting hole (305) on the front bumper are sequentially arranged on the fender (1).

4. The fender assembly according to claim 2, characterized in that: The positioning mounting base (21) includes a first mounting base plate (211), which is connected to the fender (1). The first mounting base plate (211) is provided with a first reinforcing rib (212), a bolt connection hole (214) is provided on the first mounting base plate (211), and a positioning groove (213) is provided on the first mounting base plate (211).

5. The fender assembly according to claim 2, characterized in that: The side panel connecting seat (22) includes a second mounting base plate (221), which is connected to the fender (1). The second mounting base plate (221) is provided with a side panel reinforcing upright plate (222), and a limiting groove (223) is provided on the second mounting base plate (221). The side panel reinforcing upright plate (222) is provided with bolt holes (224), and an avoidance groove (225) is provided at the connection between the side panel reinforcing upright plate (222) and the bolt holes (224).

6. The fender assembly according to claim 4, characterized in that: An integrated plate (4) is provided on the first mounting base plate (211), a lower guard plate mounting support plate (401) is provided on the integrated plate (4), and a fog light mounting boss (402) is provided on the integrated plate (4).

7. The fender assembly according to claim 1, characterized in that: The lower mounting frame (5) includes a lower mounting plate (501), which is disposed on the fender (1) and extends from one end of the fender (1) to the other end. The lower mounting plate (501) is provided with a first mounting hole (502).

8. The fender assembly according to claim 2, characterized in that: The upper mounting frame (2) is arc-shaped and is adapted to the upper edge contour of the fender (1). The outer side of the side connecting seat (22) extends towards the side of the fender (1).

9. The fender assembly according to claim 1, characterized in that: The fender (1), upper mounting frame (2) and lower mounting frame (5) are integrally formed structures.

10. A method for manufacturing a fender assembly as described in any one of claims 1 to 9, characterized in that, Includes the following steps: Step S1: Prepare a molding mold, wherein the inner cavity of the mold matches the overall outline of the fender (1), the upper mounting frame (2), and the lower mounting frame (5); Step S2: Inject molding material into the mold to form a fender (1) blank with a skeleton substrate in one piece; Step S3: Trim the formed workpiece to obtain the finished fender (1) assembly.

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