Automobile front windshield lower cross beam cover plate assembly structure

Abstract

The utility model discloses an automobile front windshield lower cross beam cover plate assembly structure which comprises an upper coaming and a lower coaming which are integrally formed in a punching mode, the upper coaming is of an arc-shaped structure, and the upper coaming and the lower coaming are bent to form a frame body with a lateral opening. The upper coaming and the lower coaming are integrally punched and formed, so that the integrity and the strength of the structure are improved, the lightweight design is also realized, and the fuel economy and the cruising ability of a vehicle are favorably improved; the upper coaming is of an arc-shaped structure, the upper coaming and the lower coaming are bent to form a lateral opening frame, the design of reinforcing ribs is combined, the impact resistance of the structure is enhanced, energy can be absorbed more effectively especially during direct impact or side impact, and harm to the head of a pedestrian is reduced; the design of the bending portion in the middle of the lower coaming forms an inward-concave crushing structure, ordered collapse can be achieved during collision, more impact energy can be absorbed, meanwhile, stress concentration is reduced through the arrangement of the arc-shaped transition face, and the durability of the structure is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of automobile parts, especially relates to a front windshield lower cross beam cover plate assembly structure of automobile. BACKGROUND

[0002] In the field of automobile parts, especially in the innovative design of the front windshield lower cross beam cover plate assembly structure of automobile, with the continuous progress of automobile manufacturing technology and the continuous upgrading of consumer demand, people have put forward more strict requirements for the comprehensive performance and safety standards of automobile. Among them, the safety protection of pedestrians and drivers is of great concern. The front windshield cross beam, as a key component arranged at the root of the windshield, is the main area of pedestrian head collision.

[0003] The traditional front windshield cross beam design has a large cavity section and lacks necessary non-collapse structure design. If the design strength is insufficient, it may cause the overall stiffness of the vehicle body to decrease and cause noise, vibration and harshness (NVH) performance, and thus cannot meet the effective collapse energy absorption demand in frontal or side impact, causing greater harm to the pedestrian's head, and it is difficult to meet the increasingly strict pedestrian protection head impact regulation standards. On the contrary, if the design is too strong, it will produce unnecessary redundancy, leading to an increase in the weight of the vehicle, which is not conducive to the lightweight development of the automobile, and may also have a negative impact on the vehicle's endurance. SUMMARY

[0004] The utility model aims at providing a front windshield lower cross beam cover plate assembly structure of automobile to solve the problems in the above background.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a front windshield lower cross beam cover plate assembly structure of automobile, comprising an upper wall and a lower wall, wherein the upper wall and the lower wall are integrally stamped; the upper wall is in an arc structure, wherein the lower wall is arranged below the upper wall, and the upper wall and the lower wall are bent to form a frame with a lateral opening; the upper wall extends to both sides at both ends and is provided with a connecting plate, wherein the connecting plate is integrally arranged with the upper wall.

[0006] Preferably, the upper wall is bent to form a first flange away from the edge of the lower wall.

[0007] Preferably, the upper wall is provided with a threaded hole and a welding through hole on the side close to the first flange, and a reinforcing flange is arranged around the threaded hole and the welding through hole.

[0008] Preferably, the upper wall is provided with a reinforcing rib along the length direction.

[0009] Preferably, the lower end of the middle part of the lower surrounding plate is bent to form a bending part towards one side of the upper surrounding plate, wherein the bending part is arranged obliquely from top to bottom, so that the middle part of the lower surrounding plate forms a concave crushing structure.

[0010] Preferably, an arc-shaped transition surface is arranged at the connection between the two ends of the bending part and the lower surrounding plate.

[0011] Preferably, bosses are arranged at the two ends of the lower surrounding plate, wherein weight-reducing holes are arranged on the bosses.

[0012] Preferably, the lower end of the lower surrounding plate is bent to form a second flange along the length direction thereof.

[0013] Compared with the prior art, the automobile front windshield lower cross beam cover plate assembly structure of the utility model has the beneficial effects that: the upper surrounding plate and the lower surrounding plate are integrally stamped, which not only improves the integrity and strength of the structure, but also realizes lightweight design, avoids weight increase caused by excessive design, and is beneficial to improving the fuel economy and endurance of the vehicle; the upper surrounding plate has an arc-shaped structure, and the lateral opening frame body formed by the bending of the lower surrounding plate and the design of the reinforcing rib enhances the anti-impact capacity of the structure, especially can more effectively absorb energy during a frontal collision or a side collision, reduces the damage to the head of a pedestrian, and meets the requirements of more stringent pedestrian protection regulations; the connecting plates extending out from the two ends of the upper surrounding plate facilitate stable connection with other components, and improve the stability and reliability of the entire assembly structure; the bending part design of the middle part of the lower surrounding plate forms a concave crushing structure, which can realize orderly collapse during a collision and absorb more impact energy, and the arrangement of the arc-shaped transition surface reduces stress concentration and improves the durability of the structure; the automobile front windshield lower cross beam cover plate assembly structure of the utility model realizes lightweight design while ensuring safety performance, optimizes the manufacturing process, and improves production efficiency, and is an ideal choice for meeting the safety, lightweight, and high-efficiency production requirements of modern automobiles. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 is a front view structural schematic diagram of the utility model;

[0015] Figure 2 is a top view structural schematic diagram of the utility model;

[0016] Figure 3 is a bottom view structural schematic diagram of the utility model;

[0017] Figure 4 is a three-dimensional structural schematic diagram of the utility model;

[0018] Figure 5 is a rear view structural schematic diagram of the utility model.

[0019] Wherein: 1, the upper plate; 2, the lower plate; 3, connecting plate; 4, the first flanging; 5, threaded hole; 6, welding via; 7, reinforcing flange; 8, reinforcing rib; 9, bending part; 10, arc transition surface; 11, boss; 12, lightening hole; 13, the second flanging. DETAILED DESCRIPTION

[0020] The utility model makes further detailed description in combination with the drawings.

[0021] Please refer to Figures 1 to 5 In order to realize the above object, the utility model provides the following technical scheme:

[0022] An automobile front windshield lower cross beam cover plate assembly structure, comprising an upper plate 1 and a lower plate 2, wherein the upper plate 1 and the lower plate 2 are integrally stamped; the upper plate 1 is in arc structure, wherein the lower plate 2 is arranged below the upper plate 1, and the upper plate 1 and the lower plate 2 are bent to form a frame body with lateral opening; the upper plate 1 extends to both sides at both ends and is provided with a connecting plate 3, wherein the connecting plate 3 is integrally arranged with the upper plate 1.

[0023] According to the performance requirements of the automobile front windshield lower cross beam cover plate assembly structure, appropriate metal materials such as high-strength steel plates or aluminum alloy plates are selected, which can not only meet the lightweight requirements, but also provide sufficient strength and toughness; according to the design drawing, a die for integrally stamping is manufactured, and the die design needs to consider the shape, size of the upper plate 1 and the lower plate 2 and the position of the connecting plate 3, to ensure accurate forming during stamping; the prepared metal material is placed in the die, and the upper plate 1 and the lower plate 2 are integrally formed in the die through the pressure action of the stamping machine; in this process, the upper plate 1 forms an arc structure, and the lower plate 2 is arranged below the upper plate 1, and the two are bent to form a frame body with lateral opening; at the same time, the connecting plate 3 at both ends of the upper plate 1 is also integrally formed, without additional welding or connecting steps; after stamping, subsequent processing is needed for the assembly structure, such as deburring, surface treatment, etc., to improve its appearance quality and durability; the upper plate 1 adopts arc structure, which not only looks beautiful, but also provides better anti-impact ability, and in the event of a collision, the arc structure can better disperse the impact force, protecting the safety of the driver and passengers inside the vehicle; the upper plate 1 and the lower plate 2 are bent to form a lateral opening frame, which provides space for the installation of other components, and increases the flexibility of the assembly structure; the connecting plate 3 at both ends of the upper plate 1 is integrally arranged with the upper plate 1, simplifying the installation process and improving the installation efficiency; the connecting plate 3 can be used for connection with other components such as the vehicle body frame, to ensure the stability and reliability of the assembly structure; through integrally stamping and reasonable structure design, the balance between lightweight and strength is achieved, which not only ensures sufficient strength, but also reduces the weight of the assembly structure, which is conducive to improving the fuel economy and endurance of the automobile.

[0024] Please refer toFigure 2 、 Figure 4 As an embodiment of the utility model, the upper surrounding plate 1 is bent to form a first flange 4 away from the side edge of the lower surrounding plate 2.

[0025] In the above scheme, the position, shape and size of the first flange 4 are determined according to the overall layout and functional requirements of the automobile front windshield lower cross beam cover plate assembly structure; considering that the first flange 4 can be used for mounting, fixing or connecting other components, the structural strength, stability and ease of operation should be ensured during design; according to the design requirements of the first flange 4, the mold for one-piece stamping is adjusted accordingly; the adjustment accuracy and matching degree of the mold are ensured to ensure that the first flange 4 can be accurately and stably formed during stamping; the upper surrounding plate 1 with the first flange 4 is assembled and mounted with other components to ensure that the first flange 4 can be correctly and stably connected with other components, meeting the overall layout and functional requirements of the automobile front windshield lower cross beam cover plate assembly structure; at the same time, the structural strength, stability and ease of operation of the first flange 4 are also ensured, providing reliable guarantee for subsequent assembly and installation.

[0026] Please refer to Figure 4 As an embodiment of the utility model, a threaded hole 5 and a welding through hole 6 are provided on one side of the upper surrounding plate 1 close to the first flange 4, and a reinforcing flange 7 is arranged around the threaded hole 5 and the welding through hole 6.

[0027] In the above scheme, the position, number, size and shape of the threaded hole 5 and the welding through hole 6 to be provided on the side of the upper surrounding plate 1 close to the flange are determined according to the assembly requirements and functional requirements of the automobile front windshield lower cross beam cover plate assembly structure; considering that the threaded hole 5 and the welding through hole 6 can bear tension and pressure during use, the reinforcing flange 7 is designed to increase the thickness of the material around the hole, improve the structural strength and durability of the hole; the upper surrounding plate 1 with the threaded hole 5 and the welding through hole 6 is assembled and mounted with other components to ensure that the threaded hole 5 and the welding through hole 6 can be correctly and stably connected with other components, providing reliable guarantee for subsequent assembly and testing.

[0028] Please refer to Figure 2 、 Figure 4 As an embodiment of the utility model, a reinforcing rib 8 is arranged along the length direction of the upper surrounding plate 1.

[0029] In the above scheme, the position, shape, size and number of the reinforcing rib 8 are determined according to the stress analysis and strength requirements of the upper surrounding plate 1, and the reinforcing rib 8 is usually arranged along the length direction of the upper surrounding plate 1 to increase its structural rigidity and anti-deformation ability; when designing the reinforcing rib 8, the influence of the reinforcing rib 8 on the overall appearance of the upper surrounding plate 1 should be considered to ensure that the shape and position of the reinforcing rib 8 are consistent with other parts of the upper surrounding plate 1.

[0030] Please refer to Figures 2 to 5 As an embodiment of the present application, the lower end of the middle part of the lower surrounding plate 2 is bent to form a bending part 9 towards one side of the upper surrounding plate 1, wherein the bending part 9 is arranged obliquely from top to bottom, so that the middle part of the lower surrounding plate 2 forms a concave crushing structure.

[0031] In the above scheme, according to the requirements of collision safety performance and energy absorption, the bending part 9 formed in the middle part of the lower surrounding plate 2 and the inclination angle thereof are determined, wherein the design of the bending part 9 aims to absorb the energy during the collision through the concave crushing structure to improve the safety performance of the whole vehicle; the coordination and assembly of the bending part 9 with the upper surrounding plate 1 and other components are also considered in the design, which not only improves the safety performance of the whole vehicle, but also ensures the stability and reliability of the overall structure.

[0032] Please refer to Figure 2 , Figure 4 As an embodiment of the present application, an arc-shaped transition surface 10 is arranged at the connection between the two ends of the bending part 9 and the lower surrounding plate 2.

[0033] In the above scheme, according to the requirements of collision safety performance, energy absorption and overall aesthetics, the shape, size and position of the arc-shaped transition surface 10 arranged at the connection between the two ends of the bending part 9 and the lower surrounding plate 2 are determined; wherein the arc-shaped transition surface 10 can effectively smooth the connection between the bending part 9 and the lower surrounding plate 2, reduce stress concentration, and improve the strength and durability of the overall structure; at the same time, the arc-shaped transition surface 10 ensures that it is consistent with other parts of the lower surrounding plate 2, and meets the overall aesthetic requirements.

[0034] Please refer to Figure 2 , Figure 4 As an embodiment of the present application, a boss 11 is arranged at the two ends of the lower surrounding plate 2, wherein a weight-reducing hole 12 is arranged on the boss 11.

[0035] In the above scheme, according to the overall design requirements of the automobile front windshield lower beam cover plate assembly structure, the necessity and functional requirements of arranging the boss 11 at the two ends of the lower surrounding plate 2 and arranging the weight-reducing hole 12 on the boss 11 are analyzed, and the size, shape, position of the boss 11 and the number, size, shape and distribution of the weight-reducing hole 12 are determined, which not only can meet the overall design requirements of the automobile front windshield lower beam cover plate assembly structure, but also can improve the strength and durability of the lower surrounding plate 2, while reducing the overall weight and improving the performance of the whole vehicle.

[0036] Please refer to Figure 4 As an embodiment of the present application, a second flange 13 is formed by bending the lower end of the lower surrounding plate 2 along the length direction thereof.

[0037] According to the overall design requirement of the automobile front windshield lower cross beam cover plate assembly structure, the necessity and functional requirement of forming the second flange 13 at the lower end of the lower wall 2 are analyzed, the size, shape, position and assembly relationship with other components of the second flange 13 are determined, so that the lower end of the wall can accurately form the second flange 13, meet the overall design requirement of the automobile front windshield lower cross beam cover plate assembly structure, improve the strength and durability of the lower wall 2, and at the same time ensure that the assembly relationship with other components is correct, and the overall structure is stable and reliable.

[0038] Although the specific embodiments of the present application are described above, those skilled in the art should understand that these are only illustrative, the protection scope of the present application is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principles and essence of the present application, but these changes and modifications all fall within the protection scope of the present application.

Claims

1. An automobile front windshield lower cross beam cover assembly structure, comprising an upper coaming (1) and a lower coaming (2), wherein the upper coaming (1) and the lower coaming (2) are integrally stamped and formed; characterized in that, The upper surrounding plate (1) is in an arc structure, wherein the lower surrounding plate (2) is arranged below the upper surrounding plate (1), and the upper surrounding plate (1) and the lower surrounding plate (2) are bent to form a frame body with a lateral opening; the upper surrounding plate (1) extends to two sides at two ends respectively and is provided with a connecting plate (3), wherein the connecting plate (3) is arranged integrally with the upper surrounding plate (1); the lower surrounding plate (2) is bent at a lower end of a middle portion thereof towards one side of the upper surrounding plate (1) to form a bending portion (9), wherein the bending portion (9) is arranged obliquely from top to bottom, so that the middle portion of the lower surrounding plate (2) forms a concave structure.

2. The front windshield cross-car beam cover assembly structure of claim 1, wherein, The upper surrounding plate (1) is bent to form a first flange (4) away from an edge of one side of the lower surrounding plate (2).

3. The front windshield cross-car beam cover assembly structure of claim 2, wherein, The upper surrounding plate (1) is provided with a threaded hole (5) and a welding through hole (6) on one side close to the first flange (4), wherein the threaded hole (5) and the welding through hole (6) are provided with a reinforcing flange (7) around a periphery thereof.

4. The front windshield cross-car beam cover assembly structure of claim 3, wherein, The upper surrounding plate (1) is provided with a reinforcing rib (8) along a length direction thereof.

5. The front windshield cross-car beam cover assembly structure of claim 1, wherein, The bending portion (9) is provided with an arc transition surface (10) at a connection between two ends of the bending portion (9) and the lower surrounding plate (2).

6. The front windshield cross-car beam cover assembly structure of claim 1, wherein, The lower surrounding plate (2) is provided with a boss (11) at two ends thereof, wherein the boss (11) is provided with a weight-reducing hole (12) thereon.

7. The front windshield cross-car beam cover assembly structure of claim 6, wherein, The lower surrounding plate (2) is bent to form a second flange (13) at a lower end thereof along a length direction thereof.

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