Vehicle front-end assembly fixture and assembly method

Abstract

The present application discloses a vehicle front-end component assembly jig and assembly method, which solves the technical problem of unstable installation position of vehicle lights in the prior art. The vehicle front-end component assembly jig includes a skeleton; the first positioning assembly and the second positioning assembly each include a plurality of positioning members, which generate constraints in at least one direction of the vehicle's X, Y, and Z directions, so that the plurality of positioning members are positioned relative to the front-end frame in the vehicle's X, Y, and Z directions; the first limiting assembly and the second limiting assembly each include a plurality of limiting members, which generate constraints in at least one direction of the vehicle's X, Y, and Z directions, and the vehicle light mounting assembly is limited relative to the front-end frame in the vehicle's X, Y, and Z directions by the plurality of limiting members. The vehicle front-end component assembly jig can be used to unify the vehicle light mounting assembly with the front-end frame as the positioning reference, and the front signal lights and headlights can be installed on the vehicle light mounting assembly, which can ensure the stability of the installation position of the front signal lights and headlights.

Description

Technical Field

[0001] The present application belongs to the technical field of vehicle front-end assembly, and specifically relates to a vehicle front-end assembly jig and an assembly method. Background Art

[0002] When assembling existing headlights, the installation positions of the headlights vary due to different designs. The headlights are usually installed on headlight mounting assemblies. The position of the headlights on the vehicle is determined by the installation position of the headlight mounting assembly. However, the assembly datums of the headlight mounting assemblies in the prior art are not uniform, resulting in an unstable installation position of the headlights, which ultimately affects the assembly accuracy of the vehicle's front-end components.

[0003] Therefore, in order to improve the stability of the assembly position of the vehicle lamp, a vehicle front end assembly assembly fixture and an assembly method are provided. Summary of the Invention

[0004] In order to solve the current technical problem of unstable installation position of vehicle lights, the present application provides a vehicle front-end component assembly fixture and assembly method.

[0005] In a first aspect of the present application, a vehicle front-end assembly jig is provided for positioning and assembling a vehicle front-end assembly including at least a headlight mounting assembly on a body-in-white. The vehicle front-end assembly jig comprises: a frame, and a first positioning assembly, a second positioning assembly, a first limiting assembly, and a second limiting assembly mounted on the frame;

[0006] The first positioning assembly and the second positioning assembly each include a plurality of positioning members, each of which is used to cooperate with the front end frame and / or the body-in-white in positioning and to generate constraints in at least one of the X, Y, and Z directions of the vehicle, so that the plurality of positioning members are positioned relative to the front end frame in the X, Y, and Z directions of the vehicle;

[0007] The first limiting assembly and the second limiting assembly each include a plurality of limiting parts, each of which is used to cooperate with the headlight mounting assembly and generate constraints in at least one direction of the vehicle's X, Y, and Z directions. The headlight mounting assembly is limited relative to the front end frame in the vehicle's X, Y, and Z directions by the plurality of limiting parts.

[0008] In some embodiments, the positioning members of the first positioning assembly and the second positioning assembly are at least one of a positioning pin and a positioning block, the positioning pin is used to extend into the positioning hole of the front end frame, and the positioning block is used to fit with the body in white and / or the front end frame.

[0009] In some embodiments, the multiple positioning members of the first positioning assembly include two first positioning pins and two first positioning blocks, the two first positioning pins are respectively used to extend into the positioning holes of the upper cross beam of the front end frame to generate constraints at least in the X and Z directions of the vehicle; the two first positioning blocks are respectively used to fit with the two shock-absorbing towers of the white body in the Z direction of the vehicle.

[0010] In some embodiments, the multiple positioning members of the second positioning assembly include three second positioning pins and one second positioning block, wherein one second positioning pin is used to extend into the positioning hole of the upper cross beam of the front end frame to generate constraints in the X and Y directions of the vehicle; the other two second positioning pins are used to extend into the positioning holes of the columns of the front end frame to generate constraints in the Z direction of the vehicle; and one second positioning block is used to fit with the upper cross beam of the front end frame in the X direction of the vehicle.

[0011] In some embodiments, the limiting members of the first limiting assembly and the second limiting assembly are at least one of a limiting pin, a limiting block and a limiting clamp, the limiting pin is used to extend into the limiting hole of the headlight mounting assembly, and the limiting block is used to fit with the headlight mounting assembly.

[0012] In some embodiments, multiple limiting members of the first limiting assembly are provided on both sides of the skeleton, and the multiple limiting members located on both sides of the skeleton include two first limiting pins and a first limiting block, and the two first limiting pins are respectively used to extend into the limiting holes of the upper cross beam mounting plate of the headlight mounting assembly to generate constraints at least in the X direction of the vehicle; one first limiting block is used to fit with the upper cross beam mounting plate in the Z direction of the vehicle.

[0013] In some embodiments, a plurality of limiting members of the second limiting assembly are provided on both sides of the frame, and the plurality of limiting members located on both sides of the frame each include two second limiting pins, a second limiting block, and two second limiting clips, the two second limiting pins being respectively configured to extend into limiting holes of the headlight mounting bracket assembly of the vehicle lamp mounting assembly to generate a constraint at least in the Z direction of the vehicle, and one of the second limiting clips being configured to clamp the headlight mounting bracket assembly;

[0014] One of the second limiting blocks is used to fit with the headlight mounting bracket assembly in both the X and Y directions of the vehicle, and another second limiting clamp is used to clamp the headlight mounting bracket assembly.

[0015] In some embodiments, the backbone comprises a first backbone and a second backbone;

[0016] The first positioning assembly and the first limiting assembly are both mounted on the first frame to form a first jig; the first jig is disposed above the front end frame;

[0017] The second positioning assembly and the second limiting assembly are both mounted on the second frame to form a second jig; the first jig is arranged in front of the front end frame and the front bumper assembly of the body-in-white.

[0018] In some embodiments, the second jig further comprises a fixing clip for fixing the second jig to the body-in-white;

[0019] When the vehicle front end assembly positioning further includes a front center mounting bracket, the second fixture further includes a limiting portion, which is used to fit the front center mounting bracket in the X, Y and Z directions of the vehicle.

[0020] In a second aspect of the present application, a vehicle front end assembly assembly method based on the above-mentioned vehicle front end assembly assembly jig is provided, wherein the vehicle lamp mounting assembly includes a water tank upper crossbeam mounting plate, a headlight lower mounting bracket assembly, and a headlight mounting bracket assembly;

[0021] The method for installing the water tank upper crossbeam mounting plate comprises the following steps:

[0022] Pre-installing the water tank upper crossbeam mounting plate on the body-in-white;

[0023] Installing the front end frame on the body-in-white;

[0024] Matching a plurality of positioning members of the vehicle front-end assembly assembly jig with the front-end frame;

[0025] Matching the plurality of limiters of the vehicle front end assembly jig with the water tank upper crossbeam mounting plate;

[0026] Connecting and fixing the water tank upper crossbeam mounting plate to the body-in-white;

[0027] Removing the vehicle front-end assembly assembly jig;

[0028] When the second fixture further includes a limiting portion, the method for installing the headlight lower mounting bracket assembly and the headlight mounting bracket assembly includes the following steps:

[0029] Match the limiting piece and the limiting portion of the vehicle front-end assembly jig with the headlight lower mounting bracket assembly, the headlight mounting bracket assembly, and the front bumper center mounting bracket, respectively;

[0030] Matching the positioning piece of the vehicle front-end assembly assembly jig with the front-end frame;

[0031] Installing the headlight lower mounting bracket assembly, the headlight mounting bracket assembly, and the front bumper center mounting bracket on the body-in-white;

[0032] The vehicle front end assembly assembly jig is removed.

[0033] According to one or more embodiments of the present application, a vehicle front-end component assembly jig and an assembly method are provided, wherein a vehicle front-end component assembly jig is used to position and assemble a vehicle front-end component, which includes at least a headlight mounting assembly, on a white vehicle body. The vehicle front-end component assembly jig includes: a frame and a first positioning assembly, a second positioning assembly, a first limiting assembly, and a second limiting assembly installed on the frame; the first positioning assembly and the second positioning assembly each include a plurality of positioning members, and the plurality of positioning members are used to position and cooperate with the front-end frame and / or the white vehicle body, and generate constraints in at least one direction of the vehicle's X, Y, and Z directions, so that the plurality of positioning members are positioned relative to the front-end frame in the vehicle's X, Y, and Z directions; the first limiting assembly and the second limiting assembly each include a plurality of limiting members, and the plurality of limiting members are used to cooperate with the headlight mounting assembly, and generate constraints in at least one direction of the vehicle's X, Y, and Z directions, and the headlight mounting assembly is limited relative to the front-end frame in the vehicle's X, Y, and Z directions by the plurality of limiting members. The vehicle front-end component assembly jig can be used to unify the headlight mounting components with the front-end frame as the positioning reference, and the front signal lights and headlights can be installed on the headlight mounting components to ensure the stability of the installation positions of the front signal lights and headlights. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 A schematic structural diagram of a vehicle front-end assembly assembly jig and a front-end frame in one or more embodiments of the present application is shown.

[0035] Figure 2 Shown Figure 1 A schematic structural diagram of the first fixture in the vehicle front-end component assembly fixture.

[0036] Figure 3 Shown Figure 1 Schematic diagram of the structure of the assembly of the first fixture and the front-end frame in the vehicle front-end component assembly fixture.

[0037] Figure 4 Shown Figure 3 Schematic diagram of the structure from another perspective at point A.

[0038] Figure 5 Shown Figure 3 Schematic diagram of the structure from another perspective at point B.

[0039] Figure 6 Shown Figure 3 A structural diagram from another perspective at point C.

[0040] Figure 7 A schematic structural diagram of the assembly of the upper beam mounting plate and the first fixture in one or more embodiments of the present application is shown.

[0041] Figure 8 A schematic structural diagram of the assembly of the upper crossbeam mounting plate and the body-in-white in one or more embodiments of the present application is shown.

[0042] Figure 9 Shown Figure 1 Schematic diagram of the front-end framework.

[0043] Figure 10 Shown Figure 1 Schematic diagram of the structure of the second fixture.

[0044] Figure 11 Shown Figure 1 Schematic diagram of the structure of the second fixture assembled with the headlight mounting bracket assembly and the headlight lower mounting bracket assembly.

[0045] Figure 12 Shown Figure 1 Schematic diagram of the structure of the second fixture and the headlight lower mounting bracket assembly.

[0046] Figure 13 Shown Figure 1 Schematic diagram of the structure of the second fixture and the headlight mounting bracket assembly.

[0047] Figure 14 Shown Figure 1 A schematic structural diagram of the assembly of the second fixture and the headlight mounting bracket assembly from another perspective.

[0048] Figure 15 Shown Figure 1 A schematic structural diagram of the limiting portion of the second fixture.

[0049] Figure 16 Shown Figure 1 Schematic diagram of the structure of the second fixture's limiting part and the front center mounting bracket assembled.

[0050] Figure 17 Shown Figure 1 Schematic diagram of the structure of the headlight mounting component assembled through the vehicle front end component assembly fixture.

[0051] Figure 18 Shown Figure 1 Schematic diagram of the structure of the headlight installed on the headlight mounting assembly.

[0052] Explanation of the accompanying reference numerals: 100 - vehicle front end assembly jig, 110 - first positioning assembly, 111 - first positioning pin a, 112 - first positioning pin b, 113 - first positioning block, 120 - second positioning assembly, 121 - second positioning pin a, 122 - second positioning pin b, 123 - second positioning pin c, 124 - second positioning block, 130 - first limiting assembly, 131 - first limiting pin a, 132 - first limiting pin b, 133 - first limiting block, 140 - second limiting assembly, 141 - second limiting pin a, 142 - second limiting pin b, 143 - second limiting clip a, 144 - second limiting clip b, 145 - second limiting block, 1451 - limiting surface a, 1452 - limiting surface b, 150 - first jig, 151 - first skeleton, 160 - Second fixture, 161-second skeleton, 162-fixing clip, 163-limiting part, 1631-limiting part a, 1632-limiting part b, 1633-limiting part c, 200-front end frame, 210-first positioning hole a, 211-first positioning hole b, 212-second positioning hole a, 213-second positioning hole b, 214-second positioning hole c, 215-positioning surface, 216-crossbeam, 217-column, 300-upper crossbeam mounting plate, 310-first limiting hole a, 311-first limiting hole b, 400-headlight lower mounting bracket assembly, 410-second limiting hole a, 411-second limiting hole b, 500-headlight mounting bracket assembly, 600-front center mounting bracket, 700-front anti-collision beam assembly, 800-front signal light, 900-headlight. DETAILED DESCRIPTION

[0053] In order to enable those skilled in the art to understand the present application more clearly, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of this application.

[0054] As attached Figure 17 and attached Figure 18As shown, the existing front signal lamp 800 is provided with two on the left and right, respectively mounted on the left mounting plate of the water tank upper cross beam and the right mounting plate of the water tank upper cross beam; the existing headlamp 900 is provided with two on the left and right, the left headlamp 900 is mounted on the left front headlamp mounting bracket assembly 500 and the left front headlamp lower mounting bracket assembly 400; the right headlamp 900 is mounted on the right front headlamp mounting bracket assembly 500 and the right front headlamp lower mounting bracket assembly 400, and the position of the lamp on the vehicle is determined by the installation position of the above brackets; however, due to the shape of the vehicle, the left mounting plate of the water tank upper cross beam and the right mounting plate of the water tank upper cross beam are respectively provided with two on the left and right. The installation positions of the six parts, namely, the left headlight mounting bracket assembly 500, the right headlight mounting bracket assembly 500, the left headlight lower mounting bracket assembly 400, and the right headlight lower mounting bracket assembly 400, are relatively scattered, and it is impossible to use the same positioning reference. As a result, the relative positions of the parts cannot be effectively controlled, which will lead to unstable installation positions of the headlights 900 and the front signal lights 800. The gap surface difference between the headlights 900 and the front signal lights 800 and the front bumper cannot be effectively controlled, resulting in large fluctuations in the adjustment accuracy of the front end of the body-in-white, which ultimately affects the difficulty in effectively controlling the assembly accuracy of the front face of the body-in-white. Therefore, in order to improve the stability of the matching dimensions of the headlights 900, the front signal lights 800 and the front bumper, a vehicle front-end assembly jig 100 and an assembly method are provided.

[0055] See also Figure 1 、 Figure 2 、 Figure 3 、 Figure 9 、 Figure 10 and Figure 11 As shown, in an embodiment of the first aspect of the present application, a vehicle front-end component assembly jig 100 is provided, which is used to position and assemble a vehicle front-end component including at least a headlight mounting assembly on a body-in-white. The vehicle front-end component assembly jig 100 includes: a frame and a first positioning assembly 110, a second positioning assembly 120, a first limiting assembly 130, and a second limiting assembly 140 mounted on the frame; the first positioning assembly 110 and the second positioning assembly 120 each include a plurality of positioning members, each of which is used to position and cooperate with the front-end frame 200 and / or the body-in-white, and to generate constraints in at least one direction of the vehicle's X, Y, and Z directions, so that the plurality of positioning members are positioned relative to the front-end frame 200 in the vehicle's X, Y, and Z directions; the first limiting assembly 130 and the second limiting assembly 140 each include a plurality of limiting members, each of which is used to cooperate with the headlight mounting assembly, and to generate constraints in at least one direction of the vehicle's X, Y, and Z directions, and the headlight mounting assembly is limited relative to the front-end frame 200 in the vehicle's X, Y, and Z directions by the plurality of limiting members.

[0056] like Figure 17 and 18As shown, the vehicle light mounting assembly includes a radiator upper crossbeam mounting plate 300, a headlight mounting bracket assembly 500, and a headlight lower mounting bracket assembly 400. The radiator upper crossbeam mounting plate 300 includes a left radiator upper crossbeam mounting plate and a right radiator upper crossbeam mounting plate, respectively used to mount the left and right front signal lights. The headlight mounting bracket assembly 500 includes a left headlight mounting bracket assembly 500 and a right headlight mounting bracket assembly 500. The headlight lower mounting bracket assembly 400 includes a left headlight lower mounting bracket assembly 400 and a right headlight lower mounting bracket assembly 400. The left headlight mounting bracket assembly 500 and the left headlight mounting bracket assembly 500 are used to mount the left headlight, while the right headlight mounting bracket assembly 500 and the right headlight mounting bracket assembly 500 are used to mount the right headlight.

[0057] Taking the front-end frame assembly method and the front-end frame disclosed in publication number CN115257939A as an example, the front-end frame assembly method and the front-end frame introduce the positioning reference of the front-end frame in detail. On this basis, the present application provides a vehicle front-end component assembly jig 100, that is, the headlight mounting assembly can be limited in the X, Y and Z directions of the vehicle relative to the front-end frame 200 by the vehicle front-end component assembly jig 100. Since the installation position accuracy of the front-end frame 200 is relatively high, the present application limits the position of the headlight mounting assembly by using the front-end frame 200 as a reference, thereby ensuring the stability of the position of the corresponding front signal lamp 800 and headlight 900 installed by the headlight mounting assembly.

[0058] Therefore, the vehicle front-end component assembly jig 100 can unify the headlight mounting assembly with the front-end frame 200 as the positioning reference, and the front signal lamp 800 and the headlight 900 can be installed on the headlight mounting assembly, thereby ensuring the stability of the installation position of the front signal lamp 800 and the headlight 900.

[0059] As attached Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 and Figure 6 As shown, in some embodiments, the positioning members of the first positioning assembly 110 and the second positioning assembly 120 are at least one of a positioning pin and a positioning block. The positioning pin is configured to extend into a positioning hole of the front end frame 200, and the positioning block is configured to mate with the body-in-white and / or the front end frame 200. By inserting the positioning pin into the positioning hole of the front end frame 200, the first positioning assembly 110 and the second positioning assembly 120 can be positioned relative to the front end frame 200 in the X, Y, and Z directions of the vehicle. The positioning block is configured to mate with the body-in-white and / or the front end frame 200, and to a certain extent, can provide support or positioning for the frame.

[0060] As attached Figure 2 , Attachment Figure 3 , Attachment Figure 4 , Attachment Figure 5 and attached Figure 6 As shown, in some embodiments, the multiple positioning members of the first positioning assembly 110 include two first positioning pins and two first positioning blocks 113. The two first positioning pins are respectively used to extend into the positioning holes of the upper crossbeam 216 of the front frame 200 to generate constraints in at least the X and Z directions of the vehicle, that is, one of the second positioning pins generates constraints in the X and Z directions of the vehicle, and the other first positioning pin generates constraints in the X, Y, and Z directions of the vehicle. The two first positioning pins are respectively denoted as first positioning pin a111 and first positioning pin b112, and correspondingly, the two positioning holes of the upper crossbeam 216 of the front frame 200 are respectively denoted as first positioning hole a210 and first positioning hole b211. In some embodiments, the pin axis of the first positioning pin a111 is arranged along the Z direction of the vehicle, and the first positioning hole a210 and the first positioning hole b211 are both located on the upper surface of the upper crossbeam 216 of the front frame 200. The first positioning hole a210 and the first positioning hole b211 are both square holes, and the first positioning pin a111 is a round pin. The first positioning pin a111 is inserted into the corresponding first positioning hole a210 along the Z direction of the vehicle, and generates constraints in the X, Y, and Z directions of the vehicle. In other embodiments, the first positioning pin b112 is a diamond-shaped pin, and the pin shaft of the first positioning pin b112 is set along the Z direction of the vehicle. The first positioning pin b112 is inserted into the first positioning hole b211 along the Z direction of the vehicle, thereby generating constraints in the X and Z directions of the vehicle and being movable in the Y direction of the vehicle, thereby allowing the skeleton of the assembly jig to be positioned relative to the front end frame 200 via the first positioning assembly 110.

[0061] As attached Figure 3 and attached Figure 6 As shown, in some embodiments, the two first positioning blocks 113 are respectively used to fit with the two shock-absorbing towers of the white body in the Z direction of the vehicle. The cross-section of the first positioning block 113 can be square, circular or elliptical, thereby providing support for the skeleton of the assembly fixture in the Z direction of the vehicle to ensure the stability of the skeleton.

[0062] As attached Figure 9 and attached Figure 10As shown, in some embodiments, the multiple positioning members of the second positioning assembly 120 include three second positioning pins and a second positioning block 124. One of the second positioning pins is used to extend into the positioning hole of the upper crossbeam 216 of the front frame 200 to generate constraints in the X and Y directions of the vehicle. The other two second positioning pins are used to extend into the positioning holes of the uprights 217 of the front frame 200 to generate constraints in the Z direction of the vehicle. One second positioning block 124 is used to mate with the upper crossbeam 216 of the front frame 200 in the X direction of the vehicle. The three second positioning pins are respectively denoted as second positioning pin a121, second positioning pin b122, and second positioning pin c123. Correspondingly, the three positioning holes are respectively denoted as second positioning hole a212, second positioning hole b213, and second positioning hole c214. In some embodiments, the pin shaft of the second locating pin a121 is arranged along the X-direction of the vehicle, and the second locating hole a212 is located on the front surface of the upper cross beam 216 of the front end frame 200. The second locating pin a121 is a round pin, and the second locating hole a212 is an oblong hole. The second locating pin a121 is inserted into the second locating hole a212 along the X-direction of the vehicle, and the oblong hole extends in the Z-direction of the vehicle, that is, the second locating pin a121 is inserted into the second locating hole a212, which produces constraints in the X-direction and Y-direction of the vehicle and can move in the Z-direction of the vehicle.

[0063] As attached Figure 9 and attached Figure 10 As shown, in other embodiments, the pin axes of the second locating pins b122 and c123 are both arranged along the vehicle's Z direction, and the second locating holes b213 and c214 are both located on the front surfaces of the two columns 217 of the front frame 200. The second locating pins b122 are inserted into the second locating holes b213 along the vehicle's X direction and are positioned in the vehicle's Z direction; the second locating pins c123 are inserted into the second locating holes c214 along the vehicle's X direction and are positioned in the vehicle's Z direction. This allows the assembly jig frame to be hung on the columns 217, preventing the frame from flipping over and falling, and increasing the stability of the jig's positioning.

[0064] As attached Figure 9 and attached Figure 10 As shown, in other embodiments, a second positioning block 124 is used to mate with the upper crossbeam 216 of the front end frame 200 in the vehicle's X-direction. In some embodiments, the front surface of the upper crossbeam 216 of the front end frame 200 is provided with a positioning surface 215. The cross-section of the second positioning block 124 can be square, circular, or elliptical. The second positioning block 124 mates with the positioning surface 215 along the vehicle's X-direction, thereby providing support for the assembly jig frame in the vehicle's X-direction and ensuring the stability of the assembly jig.

[0065] like Figure 2 、 Figure 7 and Figure 8As shown, in some embodiments, the limiting members of the first limiting assembly 130 and the second limiting assembly 140 are at least one of a limiting pin, a limiting block, and a limiting clip. The limiting pin is configured to extend into the limiting hole of the headlight mounting assembly, and the limiting block is configured to engage with the headlight mounting assembly. By extending the limiting pin into the limiting hole of the headlight mounting assembly, the headlight mounting assembly can be limited relative to the front end frame 200 in the X, Y, and Z directions of the vehicle via the first limiting assembly 130 and the second limiting assembly 140. The limiting block is configured to engage with the headlight mounting assembly, thereby, to a certain extent, connecting and securing the headlight mounting assembly to the vehicle front end assembly assembly jig 100.

[0066] like Figure 2 、 Figure 7 and Figure 8 As shown, in some embodiments, multiple limiting members of a first limiting assembly 130 are provided on both sides of the frame. The multiple limiting members on both sides of the frame each include two first limiting pins and a first limiting block 133. The two first limiting pins are respectively configured to extend into limiting holes of the upper crossbeam mounting plate 300 of the vehicle lamp mounting assembly to provide a constraint in at least the X-direction of the vehicle. That is, one first limiting pin provides a constraint in the X-direction of the vehicle, and the other first limiting pin provides a constraint in both the X-direction and the Y-direction of the vehicle. One first limiting block 133 is configured to mate with the upper crossbeam mounting plate 300 in the Z-direction of the vehicle. The two first limiting pins are respectively designated as first limiting pin a131 and first limiting pin b132, and the corresponding limiting holes of the upper crossbeam mounting plate 300 are designated as first limiting hole a310 and first limiting hole b311. In some embodiments, the first limiting pin a131 and the first limiting pin b132 are both circular pins, and the first limiting hole a310 and the first limiting hole b311 are one of an elliptical hole and the other of a circular hole. In some embodiments, the first limiting pin a131 and the first limiting pin b132 are both circular pins, the first limiting hole a310 is an elliptical hole, and the first limiting hole b311 is a circular hole. The pin shafts of the first limiting pin a131 and the first limiting pin b132 are arranged along the Z direction of the vehicle. The first limiting pin a131 is inserted into the first limiting hole a310 along the Z direction of the vehicle and generates a constraint in the X direction of the vehicle, while being movable in the Y direction. The first limiting pin b132 is inserted into the first limiting hole b311 along the Z direction of the vehicle, thereby generating constraints in the X and Y directions of the vehicle.

[0067] like Figure 2 、 Figure 7 and Figure 8As shown, in other embodiments, a first stopper 133 is affixed to the upper crossbeam mounting plate 300 along the Z-direction of the vehicle. The cross-section of the first stopper 133 can be square, circular, or elliptical, thereby affixing the upper crossbeam mounting plate 300 to the vehicle body in the Z-direction of the vehicle, further ensuring the positioning stability of the upper crossbeam mounting plate 300. In certain embodiments, the first stopper pin a 131, the first stopper pin b 132, and the first stopper 133 form a triangle, further improving positioning stability.

[0068] like Figure 10 、 Figure 11 、 Figure 12 As shown, in some embodiments, multiple limiting members of the second limiting assembly 140 are provided on both sides of the frame, and the multiple limiting members located on both sides of the frame include two second limiting pins, a second limiting block 145 and two second limiting clips. The two second limiting pins are respectively used to extend into the limiting holes of the headlight mounting bracket assembly 400 of the vehicle lamp mounting assembly to generate constraints at least in the Z direction of the vehicle, and one of the second limiting clips is used to clamp the headlight mounting bracket assembly 400; the two second limiting pins are used to extend into the limiting holes of the headlight mounting bracket assembly 400 of the vehicle lamp mounting assembly to generate constraints at least in the Z direction of the vehicle, and one of the second limiting clips is used to clamp the headlight mounting bracket assembly 400; The two limiting clips are respectively the second limiting clip a143 and the second limiting clip b144; the two second limiting pins are respectively recorded as the second limiting pin a141 and the second limiting pin b142, and the corresponding limiting holes of the headlight lower mounting bracket assembly 400 are respectively the second limiting hole a410 and the second limiting hole b411, the second limiting pin a141 and the second limiting pin b142 are both circular pins, and the second limiting hole a410 and the second limiting hole b411, one of them is an elliptical hole and the other is a circular hole. In certain embodiments, the second limiting hole a410 is an elliptical hole, and the second limiting hole b411 is a circular hole. The pin axes of the second limiting pins a141 and b142 are arranged along the vehicle's X-direction. The second limiting pin a141 is inserted into the second limiting hole a410 along the vehicle's X-direction and constrains the vehicle in the Z-direction, while being movable in the vehicle's Y-direction. The second limiting pin b142 is inserted into the second limiting hole b411 along the vehicle's X-direction and constrains the vehicle in both the Y- and Z-directions. The second limiting clamp a143 abuts and secures the headlight undermount bracket assembly 400 to the vehicle front-end assembly jig 100, thereby constraining the vehicle in the X-direction. This further ensures the stability of the positioning of the headlight undermount bracket assembly 400.

[0069] like Figure 10 、 Figure 13 and Figure 14As shown, in other embodiments, a second stopper 145 is used to mate with the headlight mounting bracket assembly 500 in the X and Y directions of the vehicle, and a second stopper clamp is used to clamp the headlight mounting bracket assembly 500. In some embodiments, the second stopper 145 includes a groove with a stopper surface a1451 for limiting position along the vehicle's X direction and a stopper surface b1452 for limiting position along the vehicle's Y direction. Accordingly, the headlight mounting bracket assembly 500 mates with the stopper surface a1451 along the vehicle's X direction, thereby limiting its position in the vehicle's X direction; the headlight mounting bracket assembly 500 mates with the stopper surface b1452 along the vehicle's Y direction, thereby limiting its position in the vehicle's Y direction. The headlight mounting bracket assembly 500 can then be self-positioned in the Z direction using the mounting surface. The second stopper clamp b144 then mates and limits the headlight mounting bracket assembly 500 to the frame of the vehicle front-end assembly jig 100 along the vehicle's X direction. The stability of the positioning of the headlight mounting bracket assembly 500 is further ensured.

[0070] like Figure 1 As shown, in some embodiments, the frame includes a first frame 151 and a second frame 161; the first positioning assembly 110 and the first limiting assembly 130 are both mounted on the first frame 151 to form a first jig 150; the first jig 150 is positioned above the front end frame 200; the second positioning assembly 120 and the second limiting assembly 140 are both mounted on the second frame 161 to form a second jig 160; the first jig 150 is positioned in front of the front end frame 200 and the front bumper assembly of the body-in-white. The upper crossbeam mounting plate 300 can be positioned relative to the front end frame 200 in the X, Y, and Z directions of the vehicle by the first jig 150; and the headlight mounting bracket assembly 500 and the headlight lower mounting bracket assembly 400 can be positioned relative to the front end frame 200 in the X, Y, and Z directions of the vehicle by the second jig 160.

[0071] like Figure 1 As shown, in some embodiments, the first jig 150 and the second jig 160 are separate. This facilitates positioning and limiting the water tank upper crossbeam mounting plate 300 using the first jig 150, and positioning and limiting the headlight mounting bracket assembly 500 and the headlight lower mounting bracket assembly 400 using the second jig 160. This allows for splitting the operations and reducing the weight of each tool.

[0072] like Figure 11 As shown, in some embodiments, the second jig 160 also includes a fixing clip 162 for fixing the second jig 160 to the body-in-white; the second jig 160 can be fitted to the body-in-white through the fixing clip 162. In some embodiments, the entire second jig 160 can be fixed to the anti-collision beam through the fixing clip 162, thereby improving the stability of the positioning of the second jig 160.

[0073] like Figure 11 、 Figure 15 and Figure 16 As shown, in other embodiments, when the positioning of the front-end assembly of the vehicle also includes the front center mounting bracket 600, the second fixture 160 further includes a limiting portion 163, which is used to mate with the front center mounting bracket 600 in the X, Y, and Z directions of the vehicle. The limiting portion 163 includes a limiting portion a1631, a limiting portion b1632, and a limiting portion c1633. The limiting portion a1631 can provide a limit in the Z direction of the vehicle. The limiting portion a1631 can be an adsorption magnet, providing an adsorption force to the front center mounting bracket 600 in the Z direction of the vehicle to prevent the front center mounting bracket 600 from falling; the limiting portion b1632 can provide a limit in the X direction of the vehicle, and the limiting portion c1633 can provide a limit in the Y direction of the vehicle, thereby limiting the front center mounting bracket 600 along the X, Y, and Z directions of the vehicle at the limiting portion 163. The front fender center mounting bracket 600 can be used to support the front fender assembly and ensure the Z-direction position of the front fender assembly.

[0074] Therefore, when installing the headlight mounting bracket assembly 500 and the headlight under-mounting bracket assembly 400, the headlight mounting bracket assembly 500 and the headlight under-mounting bracket assembly 400 can be installed on the second fixture 160 in advance, and the second fixture 160 can be positioned and installed on the white body through the front end frame 200, thereby improving the installation efficiency.

[0075] In a second aspect of the present application, a vehicle front end assembly method based on the above-mentioned vehicle front end assembly assembly jig 100 is provided, wherein the vehicle lamp mounting assembly includes a water tank upper crossbeam mounting plate, a headlight lower mounting bracket assembly, and a headlight mounting bracket assembly;

[0076] The installation method of the water tank upper crossbeam mounting plate 300 includes the following steps:

[0077] The water tank upper cross beam mounting plate 300 is pre-installed on the body-in-white; it can be understood that the water tank upper cross beam mounting plate 300 has a fitting surface that cooperates with the cross beam 216 of the body, that is, the water tank upper cross beam mounting plate 300 can be placed on the corresponding body to complete the pre-installation. Since the position of the column 217 of the front end frame 200 is fixed, the water tank upper cross beam mounting plate 300 can be directly fitted with the column 217 of the front end frame 200 and the cross beam 216 of the body to complete the pre-installation.

[0078] The front end frame 200 is mounted on the body-in-white; that is, the upper crossbeam 216 of the front end frame 200 is mounted on the column 217 of the front end frame 200 .

[0079] The multiple positioning members of the vehicle front-end assembly jig 100 are mated with the front-end frame 200, thereby generating a constraint in at least one of the vehicle's X, Y, and Z directions, thereby positioning the multiple positioning members relative to the front-end frame 200 in all of the vehicle's X, Y, and Z directions. This allows the first jig 150 of the vehicle front-end assembly jig 100 to be positioned relative to the front-end frame 200.

[0080] The limiting member of the vehicle front-end assembly jig 100 is mated with the radiator upper crossbeam mounting plate 300, thereby creating a constraint in at least one of the vehicle's X, Y, and Z directions. The radiator upper crossbeam mounting plate 300 is limited relative to the front frame 200 in all three directions via the first jig 150. This allows the radiator upper crossbeam mounting plate 300 to be positioned relative to the front frame 200 via the first jig 150.

[0081] Connect and fix the water tank upper cross beam mounting plate 300 to the vehicle body; that is, connect and fix the water tank upper cross beam mounting plate 300 to the corresponding mounting holes of the white body.

[0082] Remove the vehicle front end assembly jig 100; after the water tank upper crossbeam mounting plate 300 is installed, the first jig 150 can be removed along the Z direction of the vehicle. The operation is simple, convenient and fast.

[0083] When the second fixture 160 further includes the limiting portion 163 , the method for installing the headlight lower mounting bracket assembly 400 and the headlight mounting bracket assembly 500 includes the following steps:

[0084] The limiting piece and limiting portion 163 of the vehicle front end component assembly jig 100 are respectively matched with the headlight lower mounting bracket assembly 400, the headlight mounting bracket assembly 500 and the front fender mounting bracket 600, that is, the left headlight lower mounting bracket assembly 400, the right headlight lower mounting bracket assembly 400, the left headlight mounting bracket assembly 500, the right headlight mounting bracket assembly 500 and the front fender mounting bracket 600, a total of five parts, can be installed in advance on the second jig 160 of the vehicle front end component assembly jig 100. Since the five parts are relatively scattered, the five parts are first installed on the second jig 160, which improves the installation efficiency.

[0085] The positioning parts of the vehicle front-end component assembly jig 100 are matched with the front-end frame 200; thereby, the above-mentioned five parts are positioned relative to the front-end frame 200 in the X-direction, Y-direction and Z-direction of the vehicle. Since the five parts are positioned on the second jig 160 in advance, the five parts are limited relative to the front-end frame 200 in the X-direction, Y-direction and Z-direction of the vehicle by the second jig 160.

[0086] Install the headlight lower mounting bracket assembly 400, the headlight mounting bracket assembly 500 and the front fender center mounting bracket 600 on the body-in-white; that is, connect and fix the five parts to the corresponding mounting holes of the body-in-white.

[0087] Remove the vehicle front-end assembly jig 100. After the five parts are connected and fixed to the corresponding mounting holes of the body-in-white, the second jig 160 can be removed along the X-axis of the vehicle. The operation is simple, convenient and fast.

[0088] Thus, the present application can use the first jig 150 and the second jig 160 to assemble the seven parts, namely the left mounting plate of the upper cross beam 216 of the water tank, the right mounting plate of the upper cross beam 216 of the water tank, the left front headlight mounting bracket assembly 500, the right front headlight mounting bracket assembly 500, the left front headlight lower mounting bracket assembly 400, the right front headlight lower mounting bracket assembly 400, and the front center mounting bracket 600. The seven parts are uniformly installed using the first jig 150 or the second jig 160 with the front end frame 200 as the positioning reference, which reduces the weight of the jig and can also split the mounting bracket operation to facilitate the balance between the installation processes. Compared with using a jig for positioning and installation of each part, two jigs are smaller in size than multiple jigs and are more convenient to use.

[0089] In this application, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0090] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise" and "counterclockwise" indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0091] In this application, unless otherwise specified or limited, the terms "connect," "fix," etc. should be understood broadly. For example, "fix" can mean fixed connection, detachable connection, or integration; it can mean mechanical connection or electrical connection; it can mean direct connection or indirect connection through an intermediate medium; it can mean internal communication between two elements or interaction between two elements. Those skilled in the art will understand the specific meanings of the above terms in this application based on specific circumstances.

[0092] In addition, the terms "first," "second," and so on, used in this application are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, features specified as "first" or "second" may explicitly or implicitly include one or more features. In the description of this application, "plurality" means two or more, unless otherwise specifically defined.

[0093] Although the embodiments of the present application have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions, and variations may be made to the embodiments without departing from the principles and intent of the present application, and that the scope of the present application is defined by the claims and their equivalents.

Claims

1. A vehicle front end assembly jig for positioning and assembling a vehicle front end assembly including at least a headlight mounting assembly on a vehicle body in white, characterized in that: The vehicle front end assembly jig includes: a frame and a first positioning assembly, a second positioning assembly, a first limiting assembly and a second limiting assembly installed on the frame; The first positioning assembly and the second positioning assembly each include a plurality of positioning members, each of which is used to cooperate with the front end frame and / or the body-in-white in positioning and to generate constraints in at least one of the X, Y, and Z directions of the vehicle, so that the plurality of positioning members are positioned relative to the front end frame in all of the X, Y, and Z directions of the vehicle; The positioning members of the first positioning assembly and the second positioning assembly are at least one of a positioning pin and a positioning block, the positioning pin is used to extend into the positioning hole of the front end frame, and the positioning block is used to fit with the body-in-white and / or the front end frame; The plurality of positioning members of the first positioning assembly include two first positioning pins and two first positioning blocks, the two first positioning pins being respectively configured to extend into positioning holes of the upper cross member of the front end frame to generate constraints at least in the X and Z directions of the vehicle; the two first positioning blocks being respectively configured to mate with the two shock absorber towers of the body-in-white in the Z direction of the vehicle; The first limiting assembly and the second limiting assembly each include a plurality of limiting parts, each of which is used to cooperate with the headlight mounting assembly and generate constraints in at least one direction of the vehicle's X, Y, and Z directions. The headlight mounting assembly is limited relative to the front end frame in the vehicle's X, Y, and Z directions by the plurality of limiting parts.

2. The vehicle front end assembly jig according to claim 1, characterized in that: The multiple positioning parts of the second positioning assembly include three second positioning pins and one second positioning block, one of the second positioning pins is used to extend into the positioning hole of the upper cross beam of the front end frame to generate constraints in the X and Y directions of the vehicle; the other two second positioning pins are used to extend into the positioning holes of the columns of the front end frame to generate constraints in the Z direction of the vehicle; and one second positioning block is used to fit with the upper cross beam of the front end frame in the X direction of the vehicle.

3. The vehicle front end assembly jig according to claim 1, characterized in that: The limiting members of the first limiting assembly and the second limiting assembly are at least one of a limiting pin, a limiting block and a limiting clamp. The limiting pin is used to extend into the limiting hole of the headlight mounting assembly, and the limiting block is used to fit with the headlight mounting assembly.

4. The vehicle front end assembly jig according to claim 1, characterized in that: Multiple limiting parts of the first limiting assembly are provided on both sides of the skeleton, and the multiple limiting parts located on both sides of the skeleton include two first limiting pins and one first limiting block. The two first limiting pins are respectively used to extend into the limiting holes of the upper cross beam mounting plate of the headlight mounting assembly to generate constraints at least in the X direction of the vehicle; one first limiting block is used to fit with the upper cross beam mounting plate in the Z direction of the vehicle.

5. The vehicle front end assembly jig according to claim 1, characterized in that: A plurality of limiting members of the second limiting assembly are provided on both sides of the frame, and the plurality of limiting members located on both sides of the frame each include two second limiting pins, a second limiting block, and two second limiting clips, the two second limiting pins being respectively used to extend into limiting holes of the headlight mounting bracket assembly of the vehicle lamp mounting assembly to generate a constraint at least in the Z direction of the vehicle, and one of the second limiting clips being used to clamp the headlight mounting bracket assembly; One of the second limiting blocks is used to fit with the headlight mounting bracket assembly in both the X and Y directions of the vehicle, and another second limiting clamp is used to clamp the headlight mounting bracket assembly.

6. The vehicle front end assembly jig according to any one of claims 1 to 5, characterized in that: The skeleton includes a first skeleton and a second skeleton; The first positioning assembly and the first limiting assembly are both mounted on the first frame to form a first jig; the first jig is disposed above the front end frame; The second positioning assembly and the second limiting assembly are both mounted on the second frame to form a second jig; the first jig is arranged in front of the front end frame and the front bumper assembly of the body-in-white.

7. The vehicle front end assembly jig according to claim 6, characterized in that: The second fixture further includes a fixing clip for fixing the second fixture to the body-in-white; When the vehicle front end assembly positioning further includes a front center mounting bracket, the second fixture further includes a limiting portion, which is used to fit the front center mounting bracket in the X, Y and Z directions of the vehicle.

8. A vehicle front end assembly method based on the vehicle front end assembly assembly jig according to claim 7, characterized in that: The headlight mounting assembly includes a water tank upper crossbeam mounting plate, a headlight lower mounting bracket assembly, and a headlight mounting bracket assembly; The method for installing the water tank upper crossbeam mounting plate comprises the following steps: Pre-installing the water tank upper crossbeam mounting plate on the body-in-white; Installing the front end frame on the body-in-white; Matching a plurality of positioning members of the vehicle front-end assembly assembly jig with the front-end frame; Matching the plurality of limiters of the vehicle front end assembly jig with the water tank upper crossbeam mounting plate; Connecting and fixing the water tank upper crossbeam mounting plate to the body-in-white; Removing the vehicle front-end assembly assembly jig; When the second fixture further includes a limiting portion, the method for installing the headlight lower mounting bracket assembly and the headlight mounting bracket assembly includes the following steps: Match the limiting piece and the limiting portion of the vehicle front-end assembly jig with the headlight lower mounting bracket assembly, the headlight mounting bracket assembly, and the front bumper center mounting bracket, respectively; Matching the positioning piece of the vehicle front-end assembly assembly jig with the front-end frame; Installing the headlight lower mounting bracket assembly, the headlight mounting bracket assembly, and the front bumper center mounting bracket on the body-in-white; The vehicle front end assembly assembly jig is removed.

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