Automobile headlamp mounting structure and assembling method

Abstract

The invention belongs to the technical field of automobile headlamps, and provides an automobile headlamp mounting structure and an assembling method.The mounting structure comprises a mask, an external support, a headlamp shell and a front bumper; the external bracket comprises a first bracket and a second bracket, and the first bracket and the second bracket are integrally connected; the mask is installed on the surface of the headlamp shell, and the headlamp shell is connected with the first support. The second bracket is provided with an integrally connected adjusting structure; the second support is connected with the front bumper through an adjusting structure so as to adapt to assembly interference between the headlamp shell and the front bumper. The external support can adapt to assembly interference of the headlamp shell and the front bumper, even if the headlamp shell and the front bumper have size errors during machining, the external support can still be effectively matched, high-precision clearance and surface difference control is achieved, the appearance quality and the assembly precision of a vehicle are improved, and the production cost is reduced. And meanwhile, the stability and the reliability of the connecting structure are also improved.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of automobile headlamps, and particularly relates to an automobile headlamp mounting structure and an assembling method. BACKGROUND

[0002] In the design of automobile body structure, the front lamp support is a key component for connecting the front headlamp, the front signal lamp and the front bumper, and has multiple functional attributes. In terms of appearance modeling, the support can effectively optimize the transition of the headlamp and the front bumper, making the front line of the vehicle more smooth and natural, and significantly improving the aesthetic design effect of the vehicle. In terms of structural mechanics, through the precise cooperation of the unique support structure and the front bumper, the front bumper can be stably lifted, supported and limited, thereby meeting the size precision requirements of the vehicle and ensuring the assembly quality of the vehicle. However, the mainstream front lamp support technology in the market still has certain limitations: 1. Single structure: most existing headlamp supports are integrally formed with the headlamp cover or the headlamp shell, and lack flexible and variable design solutions. 2. Difficulty in mold modification: the support structure integrated with the headlamp cover and the front bumper needs to be adjusted to a large extent when the product structure is improved or changed, which increases the development cost of the mold and prolongs the production cycle, limiting the rapid iteration and optimization of the product. 3. Insufficient installation and connection method: the connection between the automobile headlamp and the front bumper mainly depends on the headlamp support, but there is usually a lack of effective mounting points in the middle region around the headlamp, which makes the edge of the front bumper only connected to the headlamp support through simple lapping. This lapping method cannot achieve high-precision gap and surface difference control, affecting the appearance quality and assembly precision of the vehicle, and may also reduce the stability and reliability of the connection structure. SUMMARY

[0003] To solve the problems in the background art, the application provides an automobile headlamp mounting structure and an assembling method.

[0004] To achieve the above-mentioned purpose, the application adopts the following technical solutions: An automobile headlamp mounting structure, comprising a cover, an external support, a headlamp shell and a front bumper; The external support comprises a first support and a second support, and the first support and the second support are integrally connected; the cover is installed on the surface of the headlamp shell, and the headlamp shell is connected with the first support; The second support is provided with an integral adjustment structure; The second support is connected with the front bumper through the adjustment structure to adapt to the assembly interference between the headlamp shell and the front bumper.

[0005] Preferably, the first support surface is provided with a plurality of mounting holes, and the headlamp shell is connected with the mounting holes through bolts.

[0006] Preferably, in the second support, the adjusting structure comprises a lap portion, a clamping portion, a limiting rib and a limiting block. A plurality of the lap portions are arranged on the upper surface of the second support and lap with the front bumper; a plurality of the clamping portions are arranged on the upper surface of the second support and clamp with the front bumper. A plurality of the limiting ribs are arranged on the upper surface of the second support and abut with the lower surface of the front bumper. A plurality of the limiting blocks are arranged on the upper surface of the second support and abut with the side surface of the front bumper.

[0007] Preferably, the bottom of the front bumper is provided with a flange, and the surface of the flange is provided with a plurality of uniformly distributed limiting holes. Each of the lap portions is located between adjacent clamping portions. The lap portion laps on the upper surface of the flange and leaves an assembly gap. The clamping portion cooperates with the limiting hole of the flange, thereby leaving an assembly gap between the root of the lap portion and the side surface of the flange.

[0008] Preferably, the limiting blocks are distributed on both sides of the lap portions and / or clamping portions. The limiting blocks abut with the side surface of the flange and leave an assembly gap.

[0009] Preferably, the limiting ribs are uniformly distributed on the upper surface of the second support and abut with the lower surface of the flange, thereby leaving an assembly gap between the lower surface of the flange and the upper surface of the second support.

[0010] Preferably, the limiting hole has a size along a first direction greater than that of the clamping portion along the first direction, so as to enable the second support to have a freedom degree of moving to both sides. The first direction is a direction perpendicular to the side surface of the clamping portion and parallel to the upper surface of the flange.

[0011] Preferably, the lap portion is a strip-shaped metal piece and faces the front bumper. The clamping portion is a strip-shaped metal piece and faces the front bumper, and the end portion of the clamping portion is provided with a wedge-shaped structure which is clamped into the front bumper.

[0012] Preferably, the height of the limiting rib is lower than that of the limiting block.

[0013] An assembly method for the above-mentioned automobile headlamp mounting structure, comprising the following steps: The external support arranged between the headlamp shell and the front bumper can adapt to the assembly interference between the headlamp shell and the front bumper.

[0014] The beneficial effects of the present application are as follows: 1. The external support of the present application can adapt to the assembly interference between the headlamp shell and the front bumper, that is, even if there is a size error during the machining of the headlamp shell and the front bumper, the external support can still be effectively adapted to realize high-precision gap and surface difference control, improve the appearance quality and assembly precision of the vehicle, and also improve the stability and reliability of the connecting structure. 2. The present application uses an external support to realize the assembly of the headlamp shell and the front bumper, and the external support can adapt to different headlamp shells and front bumpers, thereby providing a flexible and variable design scheme. 3. When the product structure is changed, the present application does not need to make large-scale adjustment to the mold, thereby reducing the mold development cost and shortening the production cycle, and adapting to the rapid iteration and optimization of products.

[0015] Other features and advantages of the present application will be set forth in the following description, and in part will become apparent to those skilled in the art from the description, or can be learned by practice of the present application. The objects and other advantages of the present application can be achieved and obtained by the structures indicated in the specification and the accompanying drawings. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or prior art description. Obviously, the drawings in the following description are some embodiments of the present application, and those skilled in the art can also obtain other drawings according to these drawings without creative labor.

[0017] Figure 1 A schematic view of a front headlamp mounting structure of an automobile according to the present application is shown; Figure 2 A cooperation schematic view of the external support and the front bumper according to the present application is shown; Figure 3 A cooperation view of the lap joint part, the clamping part and the front bumper according to the present application is shown; Figure 4 A cooperation view of the limiting stopper and the front bumper according to the present application is shown; Figure 5 A distribution diagram of assembly gap generated after the cooperation of the lap joint part, the clamping part and the front bumper according to the present application is shown; Figure 6 A distribution diagram of assembly gap after the cooperation of the limiting rib and the flange is shown; Figure 7The assembly gap distribution diagram after the flange cooperates with the limiting block is shown. Figure 8 The assembly gap distribution diagram after the clamping part cooperates with the flange is shown.

[0018] In the figure: 1, mask; 2, external support; 201, first support; 2011, mounting hole; 202, second support; 2021, overlapping part; 2022, clamping part; 2023, limiting rib; 2024, limiting block; 3, headlamp housing; 4, front bumper; 401, flange; 402, limiting hole. DETAILED DESCRIPTION

[0019] To make the purposes, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are some but not all of the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0020] As shown in Figure 1 , an automobile headlamp mounting structure includes a mask 1, an external support 2 and a headlamp housing 3. The external support 2 is composed of a first support 201 and a second support 202 which are integrally connected. The mask 1 is installed on the surface of the headlamp housing 3, and the headlamp housing 3 is connected with the first support 201. The second support 202 is provided with an adjusting structure integrally formed thereon. As shown in FIG. 2, the adjusting structure is used to connect the second support 202 with the front bumper 4, and effectively adapts to the assembly interference between the headlamp housing 3 and the front bumper 4 through the adjustable characteristics (such as position compensation) of itself, so as to realize the stable assembly of the two.

[0021] It should be noted that, Figure 1 in the structure, the external support 2 can be similar to a general part, which can be adapted to various types of masks 1, headlamp housings 3 and front bumpers 4. Therefore, the external support 2 can not only adapt to the assembly interference of the parts, but also improve the application range and reduce the mold cost of the headlamp housing 3 and the front bumper 4.

[0022] As shown in FIG. 2, the surface of the first support 201 is provided with a plurality of mounting holes 2011, and the headlamp housing 3 can be fixedly connected with the mounting holes 2011 through bolts. In addition, the adjusting structure on the second support 202 is composed of an overlapping part 2021, a clamping part 2022, a limiting rib 2023 and a limiting block 2024.

[0023] A plurality of overlapping portions 2021 are arranged on the upper surface of the second support 202, used to form an overlapping fit with the corresponding position of the front bumper 4; a plurality of clamping portions 2022 are arranged on the upper surface of the second support 202 at intervals, and are clamped and fixed with the front bumper 4 through a buckling structure; a plurality of limiting ribs 2023 are vertically protruding from the upper surface of the second support 202, and the top end thereof abuts against the lower surface of the front bumper 4 to limit the vertical displacement; a plurality of limiting blocks 2024 are arranged on the edge of the upper surface of the second support 202, used to abut against the side surface of the front bumper 4 to limit the horizontal displacement. The height of the limiting rib 2023 is lower than the height of the limiting block 2024, which can ensure that the limiting block 2024 can block the front bumper 4.

[0024] Further, the bottom of the front bumper 4 is provided with a flange 401, and a plurality of limiting holes 402 are evenly arranged on the surface of the flange 401, which can cooperate with the clamping portion 2022 to enhance the connection stability.

[0025] In combination Figure 2 and Figure 3 It can be seen that a single overlapping portion 2021 is located between adjacent clamping portions 2022, and is overlapped on the upper surface of the flange 401 and leaves an assembly gap, which can compensate for the up-down misalignment caused by the manufacturing tolerance, and avoid the assembly jam caused by hard contact. The clamping portion 2022 cooperates with the limiting hole 402 of the flange 401, and through this cooperation, an assembly gap can also be left between the root of the overlapping portion 2021 and the side surface of the flange 401.

[0026] As Figure 5 shown, in some optional embodiments, the assembly gap between the overlapping portion 2021 and the flange 401 is A1=1.5mm, and the assembly gap between the flange 401 and the root of the overlapping portion 2021 is B1=1.7mm, at this time, the gap C1=1.5mm between the mask 1 and the front bumper 4 in the Z direction. C1 is the gap requirement between the front bumper 4 and the lamp of the whole vehicle, specifically the peripheral fit gap between the front bumper 4 and the headlamp shell 3. In the traditional structure, the clamping structure of the front bumper 4 and the headlamp is directly arranged on the mask 1, which is limited by the structure space and the appearance quality requirement of the mask, and is prone to the problem of cracking of the front bumper to the mask of the headlamp under special working conditions of the user (such as vibration and impact). The external support 2 arranged independently in the present scheme effectively guarantees the stability of the peripheral fit gap between the front bumper and the headlamp at C1, and avoids the defects of the traditional structure.

[0027] As Figure 4As shown, the limit blocks 2024 are distributed on both sides of the overlap portion 2021 and / or the clamping portion 2022, which abut against the side of the flange 401 and reserve an assembly gap. This structure can limit the horizontal displacement of the flange from multiple directions, and at the same time absorb the lateral error during the assembly process through the gap to ensure the relative position accuracy of the front bumper 4 and the headlight housing 3. In addition, combined with Figure 7 It can be seen that in some optional embodiments, the assembly gap F1 between the limit stop 2024 and the flange 401 is 0.7 mm.

[0028] Combine Figure 2 and Figure 4 As can be seen, the limiting ribs 2023 are evenly distributed on the upper surface of the second bracket 202, with their tops abutting against the lower surface of the flange 401, thus forming an assembly gap between the lower surface of the flange 401 and the upper surface of the second bracket 202. The limiting ribs 2023 provide vertical support to prevent the flange from sagging, while the gap accommodates the slight expansion and contraction of the flange due to vibration or temperature changes, preventing friction noise or fatigue damage between the structures.

[0029] like Figure 6 As shown, in some optional embodiments, the gap E1 between the second bracket 202 and the flange 401 is 1.2 mm, which can achieve more adjustment positions and a wider overlap range than the previous clamping structure of the front bumper 4, thereby effectively controlling the uniformity of the circumferential fitting gap between the front bumper 4 and the headlight housing 3 at C1.

[0030] like Figure 2 or Figure 4 As shown, the dimension of the limiting hole 402 along the first direction is larger than the dimension of the clamping portion 2022 along the first direction, so as to allow the second bracket 202 to move freely in both directions. The first direction is perpendicular to the side of the clamping portion 2022 and parallel to the upper surface of the flange 401, corresponding to Figure 2 or Figure 4 The length direction of the middle limiting hole 402.

[0031] It should be noted that a certain degree of freedom needs to be ensured after the clamping portion 2022 is matched with the limiting hole 402. Therefore, the clamping portion 2022 can move left and right within a certain range in the first direction. Therefore, there is a certain processing error between each external bracket 2, headlight housing 3 and front bumper 4. Therefore, the interference between the various parts needs to be considered during assembly. The size design of the limiting hole 402 helps to improve the flexibility during assembly.

[0032] Optionally, to adapt the assembly interference of the external support 2 and the front bumper 4, the overlapping part 2021 can be designed as a strip-shaped metal part which is bent upward and towards the front bumper 4, and provides a certain adjustment allowance for assembly through its structural flexibility; similarly, the clamping part 2022 also adopts a strip-shaped metal part which is bent downward and towards the front bumper 4, and the end part is provided with a wedge-shaped structure which can form a clamping fit with the limiting hole 402 of the front bumper 4, which can facilitate quick assembly through wedge-shaped guiding, and can also compensate for assembly errors by using the slight deformation of the metal part, thereby avoiding interference problems caused by rigid clamping.

[0033] As shown in Figure 8 the drawing, the flange 401 of the front bumper 4 is clamped with the clamping part 2022 (the gap between the wedge-shaped structure and the limiting hole 402 is D1=0.1mm), which can limit the X-direction surface difference of the front bumper 4 and the front cover 1. In addition, the front bumper 4 cooperates with five limiting blocks 2024 for auxiliary limiting, which can prevent the problem of uneven surface difference of the front bumper 4 and the front cover 1 caused by local deformation of the front bumper 4. Moreover, the limiting block 2024 can be adjusted in real time according to the actual situation, and the fitting gap F1=0.7mm.

[0034] It should be noted that the gap relationship at A1 to F1 above can be adaptively adjusted according to actual data design, and is not limited to this design.

[0035] An assembly method for the above-mentioned automobile headlamp mounting structure, comprising the following steps: The external support 2 arranged between the headlamp housing 3 and the front bumper 4 is adapted to the assembly interference between the headlamp housing 3 and the front bumper 4 through the external support 2.

[0036] As can be known from the above method and device, when the external support 2 is independently formed with the lamp cover 1 and the headlamp housing 3, and forms an overlapping fit with the front bumper 4, it has a larger structural layout space and a more flexible fit relationship compared with the traditional structure, and can stably ensure the fit precision of the gap surface difference between the lamp and the front bumper 4. At the same time, when there is a size deviation in the actual object, the mold of the external support 2 can be adjusted alone to adapt to the assembly interference between the headlamp housing 3 and the front bumper 4, without involving the cover 1, the headlamp housing 3 and the front bumper 4 itself, thereby realizing the shortening of the whole vehicle matching period and the modularization of the adjustment, and effectively improving the assembly efficiency.

[0037] Although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that the technical solutions recorded in the foregoing embodiments can still be modified, or some technical features can be replaced by equivalents; 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 embodiments of the present application.

Claims

1. A car headlight mounting structure, characterized in that: It comprises a mask (1), an external bracket (2), a headlight housing (3) and a front bumper (4); The external bracket (2) comprises a first bracket (201) and a second bracket (202), wherein the first bracket (201) and the second bracket (202) are integrally connected; the mask (1) is mounted on the surface of the headlight housing (3), and the headlight housing (3) is connected to the first bracket (201); The second bracket (202) is provided with an integrally connected adjustment structure; The second bracket (202) is connected to the front bumper (4) through an adjustment structure to accommodate assembly interference between the headlight housing (3) and the front bumper (4).

2. The automobile headlight mounting structure according to claim 1, characterized in that: A plurality of mounting holes (2011) are provided on the surface of the first bracket (201), and the headlight housing (3) is connected to the mounting holes (2011) via bolts.

3. The automobile headlight mounting structure according to claim 1, characterized in that: In the second bracket (202), the adjustment structure comprises a lap joint (2021), a clamping portion (2022), a limiting rib (2023) and a limiting block (2024); A plurality of overlapping portions (2021) are provided on the upper surface of the second bracket (202) and overlap the front bumper (4); a plurality of clamping portions (2022) are provided on the upper surface of the second bracket (202) and clamp the front bumper (4); A plurality of the limiting ribs (2023) are arranged on the upper surface of the second bracket (202) and abut against the lower surface of the front bumper (4); A plurality of the position-limiting blocks (2024) are arranged on the upper surface of the second bracket (202) and are used to abut against the side surfaces of the front bumper (4).

4. The automobile headlight mounting structure according to claim 3, characterized in that: The bottom of the front bumper (4) is provided with a flange (401), and the surface of the flange (401) is provided with a plurality of evenly distributed limiting holes (402); A single overlapping portion (2021) is located between adjacent clamping portions (2022); The overlapping portion (2021) overlaps the upper surface of the flange (401) and leaves an assembly gap; The clamping portion (2022) cooperates with the limiting hole (402) of the flange (401), thereby leaving an assembly gap between the root of the overlapping portion (2021) and the side of the flange (401).

5. The automobile headlight mounting structure according to claim 4, characterized in that: The limit blocks (2024) are distributed on both sides of the overlapping portion (2021) and / or the clamping portion (2022); The limit stopper (2024) is used to abut against the side surface of the flange (401) and leave an assembly gap.

6. The automobile headlight mounting structure according to claim 4, characterized in that: The limiting ribs (2023) are evenly distributed on the upper surface of the second bracket (202) and abut against the lower surface of the flange (401), thereby leaving an assembly gap between the lower surface of the flange (401) and the upper surface of the second bracket (202).

7. The automobile headlight mounting structure according to claim 4, characterized in that: The size of the limiting hole (402) along the first direction is greater than the size of the clamping portion (2022) along the first direction, so as to allow the second bracket (202) to have the freedom to move to both sides; The first direction is a direction perpendicular to the side of the clamping portion (2022) and parallel to the upper surface of the flange (401).

8. The automobile headlight mounting structure according to any one of claims 3 to 7, characterized in that: The overlapping portion (2021) is a strip-shaped sheet metal part and faces the front bumper (4); The clamping portion (2022) is a strip-shaped sheet metal part and faces the front bumper (4). The end of the clamping portion (2022) is provided with a wedge-shaped structure, and the wedge-shaped structure is clamped into the front bumper (4).

9. The automobile headlight mounting structure according to any one of claims 3 to 7, characterized in that: The height of the limiting rib (2023) is lower than the height of the limiting block (2024).

10. An assembly method for an automobile headlamp mounting structure according to any one of claims 1 to 9, characterized in that: The following steps are involved: An external bracket (2) is arranged between the headlight housing (3) and the front bumper (4), and the external bracket (2) adapts to the assembly interference between the headlight housing (3) and the front bumper (4).

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