A U-shaped light support frame for front bumper grille and its installation method

Abstract

This invention pertains to automotive assembly, and specifically relates to a U-shaped light support frame for a front bumper grille and its installation method. The frame includes a set of lights, a grille body, a front bumper body, and a frame body. A set of lights is mounted on the frame body and fixed at mounting point a, forming a first assembly. The grille body is mounted on the first assembly, pressing against the inner edge of the set of lights until the grille body and the first assembly are in contact. Adjustment components are arranged on the contact surface, including at least one set of adjustment holes and adjustment buckles that can slide laterally and / or at least one set that can slide longitudinally. These are fixed by a second connector, forming a second assembly. The frame body is mounted on the second assembly, with the front bumper body pressing against the outer edge of the set of lights until the front bumper body and the second assembly are in contact. This is fixed at mounting point c, forming an integrated sub-assembly assembly. The integrated sub-assembly assembly is mounted on the front of the vehicle frame.

Description

Technical Field

[0001] This invention belongs to the field of automotive assembly, and specifically relates to a U-shaped light support frame for the front bumper grille and its installation method. Background Technology

[0002] With the rapid development of the automotive industry, consumers are paying more and more attention to the characteristics of the front face design of cars. This has resulted in larger illuminated areas on the front face, larger grilles, and smaller bumpers.

[0003] In existing technologies, headlights, lamp covers, and grilles are sequentially installed and fixed onto the bumper frame. When installing the grille last, the gaps between the left and right sides of the grille and the two lamp covers are usually visually estimated to ensure they are uniform before fixing the grille's position. However, there are processing and assembly errors in the production and assembly processes of components such as headlights, lamp covers, grilles, and bumpers. Ultimately, the cumulative manufacturing error of the gap between the grille end and the lamp cover reaches ±3mm. Excessive manufacturing error not only seriously affects the quality and product yield of the grille after assembly, thus affecting the overall vehicle's perceived quality, but also, improper on-site assembly can easily lead to rework of the front bumper, grille, and U-shaped components, resulting in a waste of personnel and assembly resources. Summary of the Invention

[0004] To address the above problems, this invention proposes a U-shaped light support frame for the front bumper grille and its installation method.

[0005] It includes a set of lights, a grille body, a front bumper body, and a frame body. The frame body is a U-shaped frame structure that fits the front of the vehicle frame.

[0006] A set of lamps is mounted on the frame body. The set of lamps is U-shaped and adapted to the frame body. It is fixed by the mounting point a to form the first assembly.

[0007] The inner frame of the skeleton body fits the outer contour of the grille body, and the grille body is mounted on the first assembly. The grille body presses against the inner edge of a set of lamps until the grille body is in contact with the first assembly. Adjusting components are arranged on the contact surface. The adjusting components have at least one set of adjusting holes and adjusting buckles that can slide in the horizontal direction and / or at least one set that can slide in the vertical direction to adjust the installation surface difference between the grille body and the skeleton body. It is fixed by the second connector to form the second assembly.

[0008] The front bumper body fits into the outer frame of the frame body, and the frame body is mounted on the back of the second assembly. The front bumper body presses against the outer edge of a set of lights until the front bumper body fits into the second assembly and is fixed by mounting point c, forming an integrated sub-assembly assembly.

[0009] The integrated sub-assembly assembly is mounted on the front of the vehicle frame.

[0010] Preferably, the skeleton body includes a set of longitudinal beams and transverse beams located on both sides, forming a U-shaped frame structure, wherein,

[0011] The length direction of the crossbeam is taken as the Y-axis, the length direction of the longitudinal beam is taken as the Z-axis, and the thickness direction of the skeleton body is taken as the X-axis.

[0012] Preferably, each lamp is L-shaped, and when joined together, they form a U-shaped structure that fits the frame body;

[0013] The installation point a includes at least one set of first pre-installed components, at least one set of second pre-installed components, and several first connecting components, wherein,

[0014] A set of first pre-assembled components is symmetrically arranged in the middle of the crossbeam, and a set of second pre-assembled components is symmetrically arranged above a set of longitudinal beams.

[0015] The first pre-assembled component includes a positioning through hole and a first positioning pin that can be plugged in and matched, respectively arranged at corresponding positions on the frame body and the contact surface of the lamp.

[0016] The second pre-assembled component includes a second waist-shaped hole and a second positioning pin. The second positioning pin is installed on the lamp, the second waist-shaped hole is inclinedly arranged on the longitudinal beam, and the second positioning pin is slidably arranged in the second waist-shaped hole along the length of the hole to adjust the installation gap and is fixed by the first connector.

[0017] Preferably, a first adjusting member is arranged at the center of the inner edge of the crossbeam, and a second adjusting member is symmetrically arranged at the inner edge of a group of longitudinal beams;

[0018] The first adjusting component includes a first square hole and a first gantry buckle that can be snapped together. The first square hole is arranged along the length of the crossbeam, and the first gantry buckle is slidably arranged in the first square hole along the Y and Z directions to adjust the difference in the mounting surface between the grid body and the frame body along the X, Y and Z directions.

[0019] The second adjusting component includes a second square hole and a second gantry buckle that can be snapped together. The second square hole is arranged along the height direction of the longitudinal beam, and the second gantry buckle is slidably arranged along the length direction of the second square hole to adjust the installation surface difference in the X and Z directions.

[0020] Preferably, the first square hole and the first gantry buckle have a single-sided gap of M1 along the Y direction, and M1≤0.2mm, and a single-sided gap of M2 along the Z direction, and M2≤0.2mm;

[0021] The second square hole and the second gantry buckle have a single-sided gap M3 along the Z direction, and M3≤0.2mm.

[0022] Preferably, the mounting point c includes a third pre-installed component, at least one set of fourth pre-installed components, and a third connector;

[0023] A third pre-assembled component is arranged in the middle of the outer edge of the crossbeam, and a set of fourth pre-assembled components are symmetrically arranged at the outer edge of a set of longitudinal beams;

[0024] The third pre-installed component includes pluggable holes and inserts, which are respectively arranged at corresponding positions on the contact surfaces of the frame body and the front bumper body.

[0025] The fourth pre-installed component includes a slidably fitted third lumbar hole and a pin. The pin is installed on the front bumper body. The third lumbar hole extends along the length of the crossbeam, and a pin is slidably arranged inside the hole to adjust the installation gap. It is fixed by a third connector.

[0026] Preferably, the third waist hole and the pin have a single-sided gap of M4 along the Y direction, and M4≤0.15mm.

[0027] The frame body has several wire harness holes arranged along the U-shaped contour, corresponding to the mounting point a, to provide corresponding mounting points for the wire harnesses of a group of lamps.

[0028] Preferably, the front of the vehicle frame includes an upper crossbeam for the water tank, a central support for the front bumper, and a lower crossbeam for the water tank, which are parallel to each other and form a U-shaped frame structure with the longitudinal beams.

[0029] The integrated sub-assembly assembly is attached to the central support of the front bumper. The top of the integrated sub-assembly assembly is fixed to the upper crossbeam of the water tank by at least four rows of first fasteners, and the bottom is installed on the lower crossbeam of the water tank by at least three second fasteners.

[0030] A set of grille mounting brackets is installed on both sides of the vehicle frame above the central support of the front bumper, and a set of front bumper crossbeam mounting plate assemblies is installed on both sides of the vehicle frame below the central support of the front bumper.

[0031] The grille mounting bracket is fixedly connected to the grille body at corresponding positions by at least two third fasteners, and the front bumper body is fixedly connected to the front bumper beam mounting plate assembly at corresponding positions by at least two fourth fasteners.

[0032] This application also claims protection for an installation method, including the following steps:

[0033] A set of lamps is mounted on the frame body and fixed at mounting point a, forming the first assembly;

[0034] The grille body is mounted on the first assembly. The adjusting member can slide and engage in the transverse and longitudinal directions to adjust the installation surface difference between the grille body and the frame body. It is then fixed by the second connecting member to form the second assembly.

[0035] The second assembly is mounted on the front bumper body and fixed by mounting point c, forming an integrated sub-assembly assembly.

[0036] The integrated sub-assembly assembly is mounted on the front of the vehicle frame.

[0037] Beneficial effects

[0038] By optimizing the structure of the front bumper, grille, and a set of lights, the frame body employs at least one set of adjustable holes and adjustable clips that can slide laterally and / or at least one set that can slide longitudinally to adjust the mounting surface difference between the grille and the frame body, ensuring the product's mounting surface difference requirements are met. This enhances the overall aesthetic refinement while maximizing the achievement of styling requirements.

[0039] The assembly of the grille, front bumper, and a set of lights onto the frame body forms an integrated sub-assembly assembly. This reduces the number of body and product matching parts when the integrated sub-assembly assembly is installed with the frame. It enables the offline sub-assembly and integration of the front bumper, grille, and a set of lights onto the production line, reducing on-site EHPV man-hours and online matching personnel, and reducing the difficulty of on-site assembly, adjusting gaps and surface differences. Here, EHPV man-hours refer to the man-hours per vehicle, which can be understood by those who are not skilled in the art as how many man-hours or working hours are actually invested in producing one vehicle.

[0040] Other features and advantages of the invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of the invention may be realized and obtained by means of the structures pointed out in the description, claims and drawings. Attached Figure Description

[0041] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0042] Figure 1 A frontal schematic diagram of the skeleton body in an embodiment of the present invention is shown;

[0043] Figure 2 This invention illustrates a schematic diagram showing the connection between a set of lamps and the frame body in an embodiment of the invention;

[0044] Figure 3 A schematic diagram of mounting point a is shown in an embodiment of the present invention;

[0045] Figure 4 A schematic diagram of the positioning through hole and the second waist hole on the back of the skeleton body in an embodiment of the present invention is shown;

[0046] Figure 5 It shows Figure 3 Enlarged schematic diagram of the first pre-assembled component;

[0047] Figure 6 It shows Figure 3 Enlarged schematic diagram of the second pre-assembled component;

[0048] Figure 7 A three-dimensional schematic diagram of the connection between the grille and the frame body in an embodiment of the present invention is shown;

[0049] Figure 8 A schematic diagram of the rear side of the second assembly in an embodiment of the present invention is shown;

[0050] Figure 9 A schematic diagram of the first and second square holes on the back of the skeleton body in an embodiment of the present invention is shown;

[0051] Figure 10 It shows Figure 8 Enlarged schematic diagram of the first adjusting component;

[0052] Figure 11 It shows Figure 8 Enlarged schematic diagram of the second adjusting component;

[0053] Figure 12 This diagram illustrates the installation of the front bumper and the second assembly in an embodiment of the present invention.

[0054] Figure 13 A schematic diagram of the back of mounting point c in an embodiment of the present invention is shown;

[0055] Figure 14 A schematic diagram of the insertion hole and the third waist-shaped hole in an embodiment of the present invention is shown;

[0056] Figure 15 It shows Figure 13 Enlarged schematic diagram of the fourth pre-assembled component;

[0057] Figure 16 A schematic diagram of the wire harness hole in an embodiment of the present invention is shown;

[0058] Figure 17 This diagram shows a cross-sectional view of the integrated sub-assembly assembly in an embodiment of the present invention.

[0059] Figure 18 A schematic diagram of the vehicle frame in an embodiment of the present invention is shown;

[0060] Figure 19 A schematic diagram of the chassis and integrated sub-assembly assembly in an embodiment of the present invention is shown;

[0061] Figure 20 A top view showing the connection between the integrated sub-assembly assembly and the vehicle frame in an embodiment of the present invention is shown;

[0062] Figure 21 A bottom view showing the connection between the integrated sub-assembly assembly and the vehicle frame in an embodiment of the present invention is shown;

[0063] Figure 22 A schematic diagram of an installation method for a front bumper grille U-shaped light support frame is shown in an embodiment of the present invention.

[0064] In the picture,

[0065] 1. Frame body; 11. Longitudinal beams; 12. Cross beams;

[0066] 2. A set of lamps; 21. First pre-assembly; 211. Positioning through hole; 212. First positioning pin; 22. Second pre-assembly; 221. Second waist-shaped hole; 222. Second positioning pin; 23. First connector; 24. Wiring harness hole;

[0067] 3. Grille; 31. First adjusting component; 311. First square hole; 312. First gantry buckle; 32. Second adjusting component; 321. Second square hole; 322. Second gantry buckle; 33. Second connecting component;

[0068] 4. Front bumper; 41. Third pre-installed component; 411. Insertion hole; 42. Fourth pre-installed component; 421. Third waist-shaped hole; 422. Pin; 43. Third connecting component;

[0069] A. Integrated modular assembly;

[0070] 5. Chassis; 51. Upper crossbeam of radiator; 52. Lower crossbeam of radiator; 521. Second fastener; 53. Front bumper center bracket; 531. First fastener; 54. Grille mounting bracket; 541. Third fastener; 55. Front bumper crossbeam mounting plate assembly; 551. Fourth fastener. Detailed Implementation

[0071] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0072] refer to Figure 1 , Figure 1 The accompanying drawing shows a front view of the frame body in an embodiment of the present invention; the drawing describes a U-shaped light support frame for a front bumper grille, including a set of lights 2, a grille body 3, a front bumper body 4, and a frame body 1. The frame body 1 has a U-shaped frame structure, and includes a set of longitudinal beams 11 and transverse beams 12 located on both sides, which together form a U-shaped frame structure.

[0073] With the length direction of the crossbeam 12 as the Y-axis, the length direction of the longitudinal beam 11 as the Z-axis, and the thickness direction of the frame body 1 as the X-axis,

[0074] Furthermore, the frame body 1 fits the front of the vehicle frame 5.

[0075] refer to Figure 2 , Figure 2 The accompanying drawing shows a schematic diagram of a set of lamps connected to the frame body in an embodiment of the present invention; the drawing describes a set of lamps 2 mounted on the frame body 1, the set of lamps 2 being U-shaped and adapted to the frame body 1, and fixed by mounting point a, forming a first assembly;

[0076] Each lamp is L-shaped, and when joined together, they form a U-shaped structure that fits the frame body 1;

[0077] refer to Figure 3 , Figure 3 A schematic diagram of mounting point a is shown in an embodiment of the present invention; Figure 3 The description of installation point a includes at least one set of first pre-installed components 21, at least one set of second pre-installed components 22, and a plurality of first connecting components 23, wherein,

[0078] refer to Figure 4 , Figure 4 A schematic diagram of the positioning through hole and the second waist hole on the back of the skeleton body in an embodiment of the present invention is shown; Figure 4 The description is that a set of first pre-assembled parts 21 are symmetrically arranged in the middle of the crossbeam 12, and a set of second pre-assembled parts 22 are symmetrically arranged above a set of longitudinal beams 11.

[0079] refer to Figure 5 and Figure 6 , Figure 5 It shows Figure 3 Enlarged schematic diagram of the first pre-assembled component; Figure 6 It shows Figure 3 Enlarged schematic diagram of the second pre-assembled component; Figure 5 The description of the first pre-assembled component 21 includes a positioning through hole 211 and a first positioning pin 212 that can be plugged in and matched, respectively arranged at corresponding positions on the contact surfaces of the frame body 1 and the lamp 2;

[0080] The second pre-installed component 22 includes a second waist-shaped hole 221 and a second positioning pin 222. The second positioning pin 222 is installed on the lamp 2. The second waist-shaped hole 221 is inclinedly arranged on the longitudinal beam 11, and the second positioning pin 222 is slidably arranged in the second waist-shaped hole 221 along the length of the hole to adjust the installation gap. It is fixed by the first connecting component 23.

[0081] refer to Figure 7 and Figure 8 , Figure 7A three-dimensional schematic diagram of the connection between the grille and the frame body in an embodiment of the present invention is shown; Figure 8 A schematic diagram of the rear side of the second assembly in an embodiment of the present invention is shown;

[0082] Figure 7 The description is that the inner frame surface of the skeleton body 1 matches the outer contour of the grille body 3, and the grille body 3 is mounted on the first assembly. The grille body 3 presses against the inner edge of a set of lamps 2 until the grille body 3 is in contact with the first assembly. Adjustment components are arranged on the contact surface. The adjustment components have at least one set of adjustment holes and adjustment buckles that can slide in the horizontal direction and / or at least one set that can slide in the vertical direction to adjust the installation surface difference between the grille body 3 and the skeleton body 1. It is fixed by the second connector 33 to form the second assembly.

[0083] A first adjusting element 31 is arranged in the middle of the inner edge of the crossbeam 12, and a second adjusting element 32 is symmetrically arranged in the inner edge of a set of longitudinal beams 11;

[0084] refer to Figure 9 , Figure 10 and Figure 11 , Figure 9 A schematic diagram of the first and second square holes on the back of the skeleton body in an embodiment of the present invention is shown; Figure 10 It shows Figure 8 Enlarged schematic diagram of the first adjusting component; Figure 11 It shows Figure 8 Enlarged schematic diagram of the second adjusting component;

[0085] Figure 9 The description of the first adjusting member 31 includes a first square hole 311 and a first gantry buckle 312 that can be snapped together. The first square hole 311 is arranged along the length of the crossbeam 12, and the first gantry buckle 312 is slidably arranged in the first square hole 311 along the Y and Z directions to adjust the difference in the mounting surface between the grid body 3 and the frame body 1 along the X, Y and Z directions.

[0086] The second adjusting member 32 includes a second square hole 321 and a second gantry buckle 322 that can be snapped together. The second square hole 321 is arranged along the height direction of the longitudinal beam 11, and the second gantry buckle 322 is slidably arranged along the length direction of the second square hole 321 to adjust the difference in the mounting surfaces in the X and Z directions.

[0087] The first square hole 311 and the first gantry buckle 312 preferably have a single-sided gap of 0.2mm along the Y direction and a single-sided gap of 0.2mm along the Z direction.

[0088] The second square hole 321 and the second gantry buckle 322 have a single-sided gap of 0.2mm along the Z direction.

[0089] refer to Figure 12 and Figure 13 , Figure 12 This diagram illustrates the installation of the front bumper and the second assembly in an embodiment of the present invention. Figure 13 A schematic diagram of the back of mounting point c in an embodiment of the present invention is shown;

[0090] Figure 12 The description is that the front bumper body 4 fits the outer frame of the frame body 1, and the frame body 1 is mounted on the second assembly. The front bumper body 4 presses against the outer edge of a set of lamps 2 until the front bumper body 4 fits the second assembly and is fixed by the mounting point c, forming an integrated sub-assembly assembly A.

[0091] Installation point c includes a third pre-installed component 41, at least one set of fourth pre-installed components 42, and a third connector 43;

[0092] A third pre-assembled component 41 is arranged in the middle of the outer edge of the crossbeam 12, and a set of fourth pre-assembled components 42 are symmetrically arranged at the outer edge of a set of longitudinal beams 11.

[0093] refer to Figure 14 and Figure 15 , Figure 14 A schematic diagram of the insertion hole and the third waist-shaped hole in an embodiment of the present invention is shown; Figure 15 It shows Figure 13 Enlarged schematic diagram of the fourth pre-assembled component;

[0094] Figure 14 The description states that the third pre-installed component 41 includes a pluggable socket 411 and a insert, which are respectively arranged at corresponding positions on the contact surfaces of the frame body 1 and the front bumper body 4.

[0095] The fourth pre-installed component 42 includes a slidably fitted third lumbar hole 421 and a pin 422. The pin 422 is installed on the front bumper body 4. The third lumbar hole 421 extends along the length of the crossbeam 12, and the pin 422 is slidably arranged inside the hole along the length of the hole to adjust the installation gap. It is fixed by the third connector 43.

[0096] The third waist hole 421 and the pin 422 have a single-sided gap of 0.15mm along the Y direction.

[0097] It is worth noting;

[0098] refer to Figure 16 , Figure 16 A schematic diagram of the wire harness hole in an embodiment of the present invention is shown;

[0099] Figure 16 The description states that the skeleton body 1 has several wire harness holes 24 arranged along the U-shaped contour, corresponding to the mounting point a, to provide corresponding mounting points for the wire harness of a set of lamps 2.

[0100] refer to Figure 17 , Figure 17This diagram shows a cross-sectional view of the integrated sub-assembly assembly in an embodiment of the present invention; by Figure 17 It can be clearly seen that the grille body 3 and the front bumper body 4 respectively press against both sides of a set of lights 2 and are fixed to the frame body 1 to form an integrated sub-assembly A.

[0101] The integrated sub-assembly assembly A is mounted on the front of the frame 5.

[0102] The assembly of the integrated sub-assembly assembly A is achieved by installing the grille body 3, the front bumper body 4, and a set of lights 2 onto the frame body 1. This reduces the number of body and product matching parts when the integrated sub-assembly assembly A is installed with the frame 5, and enables the offline sub-assembly and integration of the front bumper, grille, and a set of lights onto the online platform. This reduces on-site EHPV work hours and online matching personnel, and lowers the difficulty of on-site assembly, adjustment of gaps, and surface differences.

[0103] refer to Figure 18 and Figure 19 and Figure 20 and Figure 21 , Figure 18 This diagram illustrates the installation of the vehicle frame and the integrated sub-assembly assembly in an embodiment of the present invention. Figure 19 A schematic diagram of the vehicle frame in an embodiment of the present invention is shown;

[0104] Figure 20 A top view showing the connection between the integrated sub-assembly assembly and the vehicle frame in an embodiment of the present invention is shown; Figure 21 A bottom view showing the connection between the integrated sub-assembly assembly and the vehicle frame in an embodiment of the present invention is shown;

[0105] Figure 18 It can be seen that the front of the frame 5 includes the upper crossbeam 51 of the water tank, the middle bracket 53 of the front bumper and the lower crossbeam 52 of the water tank, which are parallel to each other and form a s-shaped frame structure with the longitudinal beams.

[0106] The integrated sub-assembly A is attached to the central bracket 53 of the front bumper. The top of the integrated sub-assembly A is fixed to the upper crossbeam 51 of the water tank by at least four rows of first fasteners 531, and the bottom is installed on the lower crossbeam 52 of the water tank by at least three second fasteners 521.

[0107] A set of grille mounting brackets 54 are installed on both sides of the frame 5 above the front bumper center bracket 53, and a set of front bumper crossbeam mounting plate assemblies 55 are installed on both sides of the frame 5 below the front bumper center bracket 53.

[0108] The grille mounting bracket 54 is fixedly connected to the grille body 3 at corresponding positions by at least two third fasteners 541, and the front bumper body 4 is fixedly connected to the front bumper beam mounting plate assembly 55 at corresponding positions by at least two fourth fasteners 551.

[0109] refer to Figure 22 , Figure 22 A schematic diagram of an installation method for a front bumper grille U-shaped light support frame according to an embodiment of the present invention is shown;

[0110] Figure 22 As can be clearly seen from the text, this application also claims a method for installing a U-shaped light support frame for a front bumper grille, including the following steps:

[0111] A set of lamps 2 are mounted on the frame body 1 and fixed at mounting point a to form the first assembly;

[0112] The grille body 3 is mounted on the first assembly. The adjustment piece can slide and engage in the transverse and longitudinal directions to adjust the installation surface difference between the grille body 3 and the frame body 1. It is then fixed by the second connector 33 to form the second assembly.

[0113] The second assembly is mounted on the front bumper body 4 and fixed by mounting point c, forming an integrated sub-assembly assembly A.

[0114] The integrated sub-assembly assembly A is mounted on the front of the frame 5.

[0115] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A U-shaped light support frame for a front bumper grille, characterized in that, It includes a set of lights (2), a grille body (3), a front bumper body (4) and a frame body (1), wherein the frame body (1) is a U-shaped frame structure that fits the front of the vehicle frame (5); A set of lamps (2) are mounted on the frame body (1). The set of lamps (2) is U-shaped and adapted to the frame body (1). They are fixed by the mounting point a to form the first assembly. The inner frame of the skeleton body (1) matches the outer contour of the grille body (3), and the grille body (3) is mounted on the first assembly. The grille body (3) presses against the inner edge of a set of lamps (2) until the grille body (3) is in contact with the first assembly. An adjustment component is arranged on the contact surface. The adjustment component includes at least one set of adjustment holes and adjustment buckles that can slide in the horizontal direction and at least one set of adjustment holes that can slide in the vertical direction to adjust the installation surface difference between the grille body (3) and the skeleton body (1). It is fixed by the second connector (33) to form the second assembly. The front bumper body (4) fits into the outer frame of the frame body (1), and the frame body (1) is mounted on the second assembly. The front bumper body (4) presses against the outer edge of a set of lamps (2) until the front bumper body (4) fits into the second assembly and is fixed by the mounting point c, forming an integrated sub-assembly assembly (A). The integrated sub-assembly assembly (A) is mounted on the front of the frame (5); The skeleton body (1) includes a set of longitudinal beams (11) and transverse beams (12) located on both sides, which together form a U-shaped frame structure, wherein, The length direction of the crossbeam (12) is taken as the Y direction, the length direction of the longitudinal beam (11) is taken as the Z direction, and the thickness direction of the skeleton body (1) is taken as the X direction; A first adjusting member (31) is arranged in the middle of the inner edge of the crossbeam (12), and a second adjusting member (32) is symmetrically arranged in the inner edge of a set of longitudinal beams (11). The first adjusting member (31) includes a first square hole (311) and a first gantry buckle (312) that can be snapped together. The first square hole (311) is arranged along the length direction of the crossbeam (12), and the first gantry buckle (312) is slidably arranged in the first square hole (311) along the Y and Z directions to adjust the difference in the mounting surface between the grid body (3) and the frame body (1) along the X, Y and Z directions. The second adjusting member (32) includes a second square hole (321) and a second gantry buckle (322) that can be snapped together. The second square hole (321) is arranged along the height direction of the longitudinal beam (11), and the second gantry buckle (322) is slidably arranged along the length direction of the second square hole (321) to adjust the difference in the mounting surfaces in the X and Z directions.

2. The front bumper grille U-shaped light support frame according to claim 1, characterized in that, Each lamp is L-shaped, and when joined together, they form a U-shaped structure that is compatible with the frame body (1); The installation point a includes at least one set of first pre-installed components (21), at least one set of second pre-installed components (22), and a plurality of first connecting components (23), wherein, A set of first pre-assembled parts (21) are symmetrically arranged in the middle of the crossbeam (12), and a set of second pre-assembled parts (22) are symmetrically arranged above a set of longitudinal beams (11). The first pre-assembled component (21) includes a positioning through hole (211) and a first positioning pin (212) that can be plugged in and matched, respectively arranged on the corresponding positions of the contact surfaces of the frame body (1) and the lamp (2); The second pre-assembled part (22) includes a second waist-shaped hole (221) and a second positioning pin (222). The second positioning pin (222) is installed on the lamp (2). The second waist-shaped hole (221) is inclinedly arranged on the longitudinal beam (11), and the second positioning pin (222) is slidably arranged in the second waist-shaped hole (221) along the length of the hole to adjust the installation gap and is fixed by the first connector (23).

3. The front bumper grille U-shaped light support frame according to claim 1, characterized in that, The first square hole (311) and the first gantry buckle (312) have a single-sided gap of M1 along the Y direction, and M1≤0.2mm, and a single-sided gap of M2 along the Z direction, and M2≤0.2mm; The second square hole (321) and the second gantry buckle (322) have a single-sided gap M3 along the Z direction, and M3≤0.2mm.

4. The front bumper grille U-shaped light support frame according to claim 1, characterized in that, The mounting point c includes a third pre-installed component (41), at least one set of fourth pre-installed components (42), and a third connector (43). A third pre-installed component (41) is arranged in the middle of the outer edge of the crossbeam (12), and a set of fourth pre-installed components (42) are symmetrically arranged at the outer edge of a set of longitudinal beams (11). The third pre-installed component (41) includes a pluggable socket (411) and a insert, which are respectively arranged at the corresponding positions on the contact surfaces of the frame body (1) and the front bumper body (4); The fourth pre-installed component (42) includes a slidably fitted third lumbar hole (421) and a pin (422). The pin (422) is installed on the front bumper body (4). The third lumbar hole (421) is arranged along the length of the crossbeam (12), and the pin (422) is slidably arranged inside the hole to adjust the installation gap. It is fixed by the third connector (43).

5. The front bumper grille U-shaped light support frame according to claim 4, characterized in that, The third waist hole (421) and the pin (422) have a single-sided gap of M4 along the Y direction, and M4≤0.15mm.

6. The front bumper grille U-shaped light support frame according to claim 1, characterized in that, The skeleton body (1) has several wire harness holes (24) arranged along the U-shaped contour, corresponding to the mounting point a, to provide corresponding mounting points for the wire harness of a set of lamps (2).

7. The front bumper grille U-shaped light support frame according to claim 1, characterized in that, The front of the frame (5) includes an upper crossbeam (51) for the water tank, a central support bracket (53) for the front bumper, and a lower crossbeam (52) for the water tank. They are parallel to each other and together with the longitudinal beams form a s-shaped frame structure. The integrated sub-assembly assembly (A) is attached to the front bumper center bracket (53). The top of the integrated sub-assembly assembly (A) is fixed to the upper crossbeam (51) of the water tank by at least four rows of first fasteners (531), and the bottom is installed on the lower crossbeam (52) of the water tank by at least three second fasteners (521). A set of grille mounting brackets (54) are installed on both sides of the frame (5) above the front bumper center bracket (53), and a set of front bumper crossbeam mounting plate assemblies (55) are installed on both sides of the frame (5) below the front bumper center bracket (53). The grille mounting bracket (54) is fixedly connected to the grille body (3) at corresponding positions by at least two third fasteners (541), and the front bumper body (4) is fixedly connected to the front bumper beam mounting plate assembly (55) at corresponding positions by at least two fourth fasteners (551).

8. An installation method, using a front bumper grille U-shaped light support frame as described in any one of claims 1-7, characterized in that, Includes the following steps: A set of lamps (2) is mounted on the frame body (1) and fixed at mounting point a to form the first assembly; The grille body (3) is mounted on the first assembly. The mounting surface difference between the grille body (3) and the frame body (1) can be adjusted by the sliding cooperation of the adjusting parts in the lateral and longitudinal directions. It is fixed by the second connecting parts (33) to form the second assembly. The second assembly is mounted on the front bumper body (4) and fixed by mounting point c, forming an integrated sub-assembly (A). The integrated sub-assembly assembly (A) is mounted on the front of the frame (5).

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