Vehicle front structure and assembly positioning fixtures for vehicle front structure

Abstract

This application relates to the field of vehicle manufacturing technology, and discloses a vehicle front structure and an assembly positioning fixture for the vehicle front structure. The vehicle front structure includes a front frame, a fixed bracket, headlights, and fenders. A first positioning part is formed on the front frame, and a second positioning part is formed on the fixed bracket. The first positioning part and the second positioning part are engaged. The headlights are connected to the fixed bracket and, through the fixed bracket, to the front frame. The fenders are connected to the headlights, and the fenders have first positioning holes. The vehicle front structure provided by this application reduces the assembly difficulty of the headlights and the front frame, improves the assembly accuracy of the headlights and the front frame, reduces assembly errors, enhances the assembly stability of the headlights and the front frame, facilitates disassembly and replacement during maintenance, reduces maintenance costs and time, reduces the number of individual parts, simplifies the logistics process, and reduces transportation and packaging costs.

Description

Technical Field

[0001] This application relates to the field of vehicle manufacturing technology, and in particular to a vehicle front structure and an assembly and positioning fixture for the vehicle front structure. Background Technology

[0002] In automobile manufacturing, the traditional method of supplying headlight positioning brackets separately from the front-end frame presents several efficiency and cost challenges. Firstly, on the assembly line, workers require additional time to match the brackets with the corresponding tooling, increasing operational complexity and time costs. Secondly, because these components are supplied separately, additional steps are needed at the production line to ensure each part is correctly assembled, which not only slows down production but can also lead to assembly errors.

[0003] Secondly, separate supply increases packaging and logistics costs. Each individual component requires independent packaging to prevent damage during transportation, which translates to higher material costs. Simultaneously, the need to manage and transport more parts separately complicates logistics arrangements, involving more frequent small-batch shipments, further driving up overall logistics costs. Utility Model Content

[0004] In view of this, the present application provides a vehicle front structure that reduces the assembly difficulty of the headlights and the front frame, improves the assembly accuracy of the headlights and the front frame, reduces the number of individual parts, simplifies the logistics process, and reduces transportation and packaging costs.

[0005] To achieve the above objectives, the technical solution of this application embodiment is implemented as follows:

[0006] This application provides a front structure for a vehicle, including: a front frame with a first positioning portion formed thereon; a fixed bracket with a second positioning portion formed thereon, the first positioning portion engaging with the second positioning portion, the front frame and the fixed bracket being connected via the first positioning portion and the second positioning portion; a headlight connected to the fixed bracket and to the front frame via the fixed bracket; and a fender connected to the headlight, the fender having a first positioning hole formed thereon.

[0007] According to the vehicle front structure provided in the embodiments of this application, by setting a fixed bracket that cooperates with the front frame, the assembly difficulty of the headlight and the front frame is reduced, the assembly accuracy of the headlight and the front frame is improved, the assembly error is reduced, the assembly stability of the headlight and the front frame is improved, and it is also convenient to disassemble and replace during maintenance, reducing maintenance costs and time, reducing the number of individual parts, simplifying the logistics process, and reducing transportation and packaging costs.

[0008] In one possible implementation of this application, the fixed bracket has a first bracket positioning surface, a second positioning part is formed on the first bracket positioning surface, and the second positioning part has a connected positioning end and a cylindrical pin.

[0009] The first positioning part has a connected frame positioning groove and a recessed groove. The shape of the frame positioning groove matches the shape of the positioning end. The positioning end is adapted to extend into the frame positioning groove. A locking tongue is formed in the recessed groove. One end of the locking tongue is connected to the fixed bracket, and the other end of the locking tongue extends into the frame positioning groove and cooperates with the frame positioning groove to limit the positioning end.

[0010] In one possible implementation of this application, the fixing bracket includes: a first plate and a second plate, the first plate and the second plate being arranged at an angle, the first plate extending along the X direction, a first bracket positioning surface formed on the lower side of the first plate, a first connecting portion formed on the front end frame, and a second connecting portion corresponding to the first connecting portion formed on the first plate.

[0011] The second plate extends along the Z direction, and a second bracket positioning surface is formed on the front side of the second plate. A bracket positioning pin extending along the X direction is formed on the second bracket positioning surface. The headlight has a headlight positioning hole. The headlight and the fixed bracket are positioned by the bracket positioning pin and the headlight positioning hole.

[0012] In one possible implementation of this application, the first connecting portion is formed as a nut, the second connecting portion is formed as a first bracket connecting hole, and the fixed bracket and the front end frame are connected to the nut by fasteners passing through the bracket connecting hole.

[0013] The second plate has a second bracket connection hole, and the headlight has a headlight connection hole. The headlight and the front frame are connected to the second bracket connection hole by the fastener passing through the headlight connection hole.

[0014] Secondly, embodiments of this application provide an assembly and positioning fixture for a vehicle front structure, wherein the vehicle front structure is the vehicle front structure provided in any of the embodiments of the first aspect described above. The assembly and positioning fixture includes: a fixture main frame having a first end and a second end arranged along the X direction; a first positioning mechanism and a second positioning mechanism, wherein the first positioning mechanism is disposed at the first end and the second positioning mechanism is disposed at the second end, the first positioning mechanism is positioned in conjunction with a first positioning hole of the fender, and the second positioning mechanism is positioned in conjunction with a fixed bracket.

[0015] According to the assembly and positioning fixture for the front structure of a vehicle provided in the embodiments of this application, by setting a first positioning mechanism and a second positioning mechanism, not only is the overall consistency of the front structure of the vehicle improved, but also production efficiency and product quality are enhanced. The second positioning mechanism cooperates with the first positioning mechanism, and the positioning accuracy between the fender, the fixed bracket and the headlight is high, which reduces assembly errors, reduces the time for manual adjustment, improves production efficiency, improves the production quality of the vehicle, and achieves high tolerance while ensuring assembly accuracy, thereby realizing flexible assembly.

[0016] In one possible implementation of this application, the first positioning mechanism includes: a first bracket connected to the main frame of the tooling, and the first bracket being movable relative to the main frame of the tooling in the Y direction to adjust the position of the fender in the Y direction; a tooling positioning pin is formed on the first bracket, the tooling positioning pin being adapted to extend into the first positioning hole; the tooling positioning pin cooperating with the first positioning hole to limit the position of the fender in the X and Z directions; and the first bracket being provided with a scale.

[0017] In one possible implementation of this application, the second positioning mechanism includes: a second bracket connected to the main frame of the tooling, the second bracket being movable relative to the main frame of the tooling in both the X and Z directions to adjust the position of the second positioning mechanism in the X and Z directions, a tooling positioning groove being formed on the second bracket, and a bracket positioning pin of the fixed bracket being adapted to extend into the tooling positioning groove, the bracket positioning pin cooperating with the tooling positioning groove.

[0018] In one possible implementation of this application, both the first end and the second end include two, with the two first ends arranged symmetrically about the centerline extending along the X direction of the main frame of the tooling, and each first end is provided with a first positioning mechanism symmetrically.

[0019] The two second ends are symmetrically arranged about the centerline of the main frame of the tooling extending in the X direction, and each second end is provided with a second positioning mechanism.

[0020] In one possible implementation of this application, the assembly positioning fixture further includes a linkage mechanism, which is disposed on the main frame of the fixture. The linkage mechanism includes a first linkage component and a second linkage component, wherein the first linkage component and the second linkage component cooperate to drive the two first positioning mechanisms to achieve linkage.

[0021] In one possible implementation of this application, the assembly positioning fixture further includes a locking device, which is disposed on the first positioning mechanism and / or the second positioning mechanism, for locking the first positioning mechanism and / or the second positioning mechanism in the current position. Attached Figure Description

[0022] Figure 1 An assembly diagram of the vehicle front structure and assembly positioning fixture provided in the embodiments of this application;

[0023] Figure 2 for Figure 1 A schematic diagram of the front-end framework shown;

[0024] Figure 3 for Figure 2 A partially enlarged schematic diagram of the front-end framework shown;

[0025] Figure 4 for Figure 1 A schematic diagram of the fixed bracket shown;

[0026] Figure 5 for Figure 4 A schematic diagram of the fixed bracket shown from another angle;

[0027] Figure 6 yes Figure 1 The diagram shows the assembly of the fixed bracket and the front frame.

[0028] Figure 7 yes Figure 6 The enlarged schematic diagram shown is a partial view.

[0029] Figure 8 yes Figure 7 A schematic diagram of the cross-section at point AA shown in the figure;

[0030] Figure 9 yes Figure 1 The diagram shows the assembly of the fender and the assembly positioning fixture.

[0031] Figure 10 yes Figure 9 A magnified view of a portion of point B in the middle;

[0032] Figure 11 yes Figure 9 A magnified view of a portion of point C in the middle;

[0033] Figure 12 yes Figure 9 The diagram shows the assembly of the fender and the front frame.

[0034] Figure 13 yes Figure 12 The diagram shows a cross-section at point BB.

[0035] Figure label:

[0036] 100. Vehicle front structure; 1. Front frame; 11. Frame positioning groove; 12. Countersunk groove; 121. Locking tongue; 1211. First guide surface; 122. Transition connection surface; 13. First connecting part; 14. Frame Z-direction positioning surface; 2. Fixed bracket; 21. First plate; 211. First bracket positioning surface; 212. Positioning end; 213. Cylindrical pin; 214. First bracket connecting hole; 22. Second plate; 221. Bracket positioning pin; 222. Second bracket positioning surface; 223. 1. Second bracket connection hole; 224. Nut; 3. Headlight; 31. Headlight connection hole; 32. Headlight X-direction positioning surface; 4. Fender; 41. First positioning hole; 200. Assembly positioning fixture; 10. Fixture main frame; 101. Slide rail; 20. First positioning mechanism; 201. First bracket; 202. Fixture positioning pin; 203. Scale; 30. Second positioning mechanism; 301. Second bracket; 302. Fixture positioning groove; 303. Fixture positioning surface; 40. Linkage mechanism. Detailed Implementation

[0037] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the specific technical solutions of this application will be further described in detail below with reference to the accompanying drawings of the embodiments of this application. The following embodiments are used to illustrate this application, but are not intended to limit the scope of this application.

[0038] In the embodiments of this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the embodiments of this application, unless otherwise stated, "multiple" means two or more.

[0039] Furthermore, in the embodiments of this application, directional terms such as "upper," "lower," "left," and "right" are defined relative to the positions in which the components are schematically placed in the accompanying drawings. It should be understood that these directional terms are relative concepts, used for relative description and clarification, and can change accordingly depending on the position of the components in the accompanying drawings.

[0040] In the embodiments of this application, unless otherwise explicitly specified and limited, the term "connection" should be interpreted broadly. For example, "connection" can mean a fixed connection, a detachable connection, or an integral part; it can mean a direct connection or an indirect connection through an intermediate medium.

[0041] In embodiments of this application, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0042] In the embodiments of this application, the terms "exemplary" or "for example" are used to indicate that something is an example, illustration, or description. Any embodiment or design that is described as "exemplary" or "for example" in the embodiments of this application should not be construed as being more preferred or advantageous than other embodiments or design. Specifically, the use of the terms "exemplary" or "for example" is intended to present the relevant concepts in a specific manner.

[0043] Currently, the traditional method of supplying headlight positioning brackets and front-end frame 1 separately in automobile manufacturing presents several efficiency and cost challenges. Firstly, on the assembly line, workers require additional time to match the brackets with the corresponding tooling, increasing operational complexity and time costs. Secondly, because these components are supplied separately, additional steps are needed at the production line to ensure each part is correctly assembled, which not only slows down production but may also lead to assembly errors.

[0044] Secondly, separate supply increases packaging and logistics costs. Each individual component requires independent packaging to prevent damage during transportation, which translates to higher material costs. Simultaneously, the need to manage and transport more parts separately complicates logistics arrangements, involving more frequent small-batch shipments, further driving up overall logistics costs.

[0045] In view of this, the present application provides a vehicle front structure 100, which can improve production efficiency, reduce the probability of human error, reduce assembly error, make the headlight 3 securely mounted on the front frame 1, facilitate disassembly and replacement during maintenance, reduce maintenance costs and time, reduce the number of individual parts, simplify logistics processes, and reduce transportation and packaging costs.

[0046] It should be noted that the vehicles or automobiles mentioned in this application can refer to large automobiles, small automobiles, special-purpose vehicles, etc. For example, according to vehicle type, the vehicles or automobiles in this application can be sedans, off-road vehicles, multi-purpose vehicles (MPVs), or other types of vehicles. For vehicles, they are generally equipped with a front frame 1, fenders 4, headlights 3, etc., as shown in the figure. The headlights 3 are positioned and connected to the front frame 1 through a fixed bracket 2.

[0047] The following is for reference. Figures 1-13 Describes a vehicle front structure 100 according to an embodiment of this application.

[0048] Specifically, refer to Figures 1-13 As shown, the front structure 100 of the vehicle includes: a front frame 1, a fixed bracket 2, a headlight 3, and a fender 4. A first positioning part is formed on the front frame 1, and a second positioning part is formed on the fixed bracket 2. The first positioning part and the second positioning part are engaged. The front frame 1 and the fixed bracket 2 are connected through the cooperation of the first positioning part and the second positioning part. The headlight 3 is connected to the fixed bracket 2 and is connected to the front frame 1 through the fixed bracket 2. The fender 4 is connected to the headlight 3, and a first positioning hole 41 is formed in the fender 4.

[0049] It is understood that the fixed bracket 2 is located on the front frame 1 and connected to the front frame 1. The fixed bracket 2 provides a reliable structure for the installation of the headlight 3. A first positioning part is formed on the front frame 1, and a second positioning part is formed on the fixed bracket 2. The first positioning part and the second positioning part are stably connected by a snap-fit ​​mechanism, thereby ensuring a stable connection between the front frame 1 and the fixed bracket 2, and thus ensuring the installation stability of the headlight 3. In order to facilitate the positioning and assembly of the front frame 1 with the positioning assembly tooling, a first positioning hole 41 is formed on the fender 4, which ensures the precise assembly of the front structure 100 of the vehicle, reduces the time for manual adjustment, and improves production efficiency.

[0050] For example, refer to Figure 1 As shown, two first positioning parts are formed on the front frame 1. The two first positioning parts are symmetrically arranged about the centerline of the front frame 1 extending in the X direction. Each first positioning part is provided with a fixed bracket 2, that is, there are two fixed brackets 2. Each fixed bracket 2 is formed with a second positioning part that cooperates with the first positioning part. Each fixed bracket 2 is connected to the front frame 1 through its own second positioning part cooperating with the corresponding first positioning part. Each fixed bracket 2 is snap-fit ​​connected to the front frame 1. The snap-fit ​​connection method is simple, has low assembly difficulty, high assembly accuracy, and reduces assembly error and assembly time.

[0051] According to the vehicle front structure 100 provided in the embodiments of this application, by setting a fixed bracket 2 that cooperates with the front frame 1, the assembly difficulty of the headlight 3 and the front frame 1 is reduced, the assembly accuracy of the headlight 3 and the front frame 1 is improved, the assembly error is reduced, the assembly stability of the headlight 3 and the front frame 1 is improved, and it is also convenient to disassemble and replace during maintenance, reducing maintenance costs and time, reducing the number of individual parts, simplifying the logistics process, and reducing transportation and packaging costs.

[0052] In some embodiments of this application, the fixed bracket 2 has a first bracket positioning surface 211, a second positioning part is formed on the first bracket positioning surface 211, and the second positioning part has a connected positioning end 212 and a cylindrical pin 213; the first positioning part has a connected frame positioning groove 11 and a recess 12, the shape of the frame positioning groove 11 matches the shape of the positioning end 212, the positioning end 212 is adapted to extend into the frame positioning groove 11, a locking tongue 121 is formed in the recess 12, one end of the locking tongue 121 is connected to the fixed bracket 2, and the other end of the locking tongue 121 extends into the frame positioning groove 11 and cooperates with the frame positioning groove 11 to limit the positioning end 212.

[0053] It is understood that a first bracket positioning surface 211 is formed on the fixed bracket 2, extending along the X direction in the horizontal plane. A second positioning part is formed on the first bracket positioning surface 211. The first bracket positioning surface 211 cooperates with the frame Z-direction positioning surface 14 of the front frame 1 to define the relative position of the fixed bracket 2 and the front frame 1 in the Z direction. The second positioning part is formed as a connected positioning end 212 and a cylindrical pin 213. The cylindrical pin 213 extends along the Z direction and connects the positioning end 212 and the fixed bracket 2. The diameter of the positioning end 212 is larger than the diameter of the cylindrical pin 213. The first positioning part is formed as a connected frame positioning groove 11 and a recess 12. The shape of the frame positioning groove 11 matches the shape of the positioning end 212, and the size of the positioning end 212 matches the frame positioning groove 12. The dimensions of the positioning groove 11 are matched so that the positioning end 212 can be fully inserted into the positioning groove 11 of the frame and fit against the peripheral wall of the positioning groove 11. The groove 12 is formed into an elongated shape, and the locking tongue 121 is formed into an elongated shape. The shape and size of the locking tongue 121 match the shape and size of the groove 12. The locking tongue 121 can deform in the Z direction within the groove 12 so that the positioning end 212 can be inserted into the positioning groove 11 of the frame. One end of the locking tongue 121 is connected to the fixed bracket 2. A transition connection surface 122 is formed at the connection between the locking tongue 121 and the fixed bracket 2 to eliminate the stress generated by deformation and prevent the locking tongue 121 from breaking. The thickness of the locking tongue 121 is less than the thickness of the plate of the front frame 1. The other end of the locking tongue 121 extends into the positioning groove 11 of the frame to limit the displacement of the positioning end 212 in the Z direction.

[0054] Thus, the precise cooperation between the positioning end 212, the frame positioning groove 11, and the locking tongue 121 ensures the precise positioning between the fixed bracket 2 and the front frame 1, reduces assembly errors, and the locking tongue 121 effectively prevents the positioning end 212 from detaching from the frame positioning groove 11, enhancing connection stability. Moreover, the assembly method is simple, reducing the time for manual adjustment and improving assembly efficiency.

[0055] Reference Figure 5 As shown, the positioning end 212 is formed in a circular shape, and the frame positioning groove 11 is formed in a circular shape. The shape and size of the positioning end 212 and the frame positioning groove 11 are matched.

[0056] In some embodiments, the free end of the latch 121 (i.e., the other end of the latch 121) extends into the frame positioning groove 11. The distance between the end of the free end of the latch 121 and the connection between the frame positioning groove 11 and the countersunk groove 12 is 1 mm. That is, the free end of the latch 121 extends into the frame positioning groove 111 mm. The free end of the latch 121 forms a first guide surface 1211, and the periphery of the positioning end 212 forms a second guide surface. The latch 121 and the positioning end 212 are guided by the first guide surface 1211 and the second guide surface, which reduces the difficulty of the positioning end 212 extending into the frame positioning groove 11 and facilitates assembly.

[0057] In some embodiments, the diameter of the cylindrical pin 213 is smaller than the diameter of the positioning end 212, with a difference of 8 mm between the diameters of the cylindrical pin 213 and the positioning end 212. The diameter of the cylindrical pin 213 is also smaller than the diameter of the frame positioning groove 11, with a difference of 6 mm between the diameters of the cylindrical pin 213 and the frame positioning groove 11. This allows the cylindrical pin 213 to adjust the position of the fixed bracket 2 in the XY plane within the frame positioning groove 11 without displacement in the Z direction, and also prevents the fixed bracket 2 from detaching from the front frame 1, thus achieving flexible pre-assembly of the fixed bracket 2 and the front frame 1. Specifically, the cylindrical pin 213 can move 3 mm relative to the front frame 11 in any direction.

[0058] Preferably, the thickness of the front frame 1 is 4mm, and the thickness of the locking tongue 121 can be 2mm.

[0059] In some embodiments of this application, such as Figures 4-8As shown, the fixed bracket 2 includes: a first plate 21 and a second plate 22. The first plate 21 and the second plate 22 are arranged at an angle. The first plate 21 extends along the X direction. A first bracket positioning surface 211 is formed on the lower side of the first plate 21. A first connecting part 13 is formed on the front frame 1. A second connecting part corresponding to the first connecting part 13 is formed on the first plate 21. The second plate 22 extends along the Z direction. A second bracket positioning surface 222 is formed on the front side of the second plate 22. A bracket positioning pin 221 extending along the X direction is formed on the second bracket positioning surface 222. The headlight 3 has a headlight positioning hole. The headlight 3 and the fixed bracket 2 are positioned by the bracket positioning pin 221 cooperating with the headlight positioning hole.

[0060] Understandably, the first bracket positioning surface 211 is formed on the lower side of the first plate 21 and is used to position the fixed bracket 2 in the Z direction. The first bracket positioning surface 211 ensures that the fixed bracket 2 and the front frame 1 are precisely aligned at the same height. The first plate 21 has a second connecting part, which corresponds to the first connecting part 13 on the front frame 1, and is used to firmly connect the fixed bracket 2 and the front frame 1 with bolts or other fasteners. The front side of the second plate 22 has a second bracket positioning surface 222, which is used to position the fixed bracket 2 in the X direction. The second bracket positioning surface 222 ensures that the fixed bracket 2 and the headlight 3 are precisely aligned on the same horizontal plane. The second bracket positioning surface 222 has a bracket positioning pin 221 extending in the X direction, which is used to cooperate with the headlight positioning hole on the headlight 3 to achieve precise lateral positioning.

[0061] Therefore, the first plate 21 and the second plate 22 are arranged at an angle to be positioned in the Z and X directions respectively. Through the precise positioning of the first bracket positioning surface 211 and the second bracket positioning surface 222, as well as the cooperation between the bracket positioning pin 221 and the headlight positioning hole, the accurate positioning between the fixed bracket 2, the front frame 1 and the headlight 3 is ensured, reducing assembly errors, reducing the time for manual adjustment, and improving production efficiency. The fasteners can effectively prevent loosening between the fixed bracket 2 and the front frame 1 and between the fixed bracket 2 and the headlight 3, enhancing the stability of the overall structure.

[0062] In some embodiments of this application, the first connecting part 13 is formed as a nut 224, the second connecting part is formed as a first bracket connecting hole 214, the fixed bracket 2 and the front frame 1 are connected to the nut 224 by fasteners passing through the first bracket connecting hole 214, the second plate 22 is formed with a second bracket connecting hole 223, the headlight 3 is formed with a headlight connecting hole 31, and the headlight 3 and the front frame 1 are connected to the second bracket connecting hole 223 by fasteners passing through the headlight connecting hole 31.

[0063] Understandably, the first bracket connection hole 214 is formed on the first plate 21 for connecting the fixed bracket 2 to the nut 224 on the front frame 1 via fasteners, and the second bracket connection hole 223 is formed on the second plate 22 for connecting the fixed bracket 2 to the headlight 3 via fasteners. This not only improves the overall stability and reliability of the vehicle's front structure 100, but also significantly enhances production efficiency and product quality.

[0064] Specifically, the diameter of the first bracket connecting hole 214 is larger than the diameter of the fastener, and the difference between the diameter of the first bracket connecting hole 214 and the diameter of the fastener is 6mm. This facilitates the position adjustment of the fixed bracket 2 and realizes the flexible assembly of the headlight 3.

[0065] Reference Figure 13 As shown, nut 224 is a rivet nut 224.

[0066] In some embodiments, the rear side of the second plate 22 is provided with a nut 224 corresponding to the headlight connection hole 31. The nut 224 is welded to the second plate 22 to be screwed into the fastener that passes through the headlight connection hole 31. The connection method is simple.

[0067] Secondly, embodiments of this application provide an assembly and positioning fixture 200 for a vehicle front structure 100, wherein the vehicle front structure 100 is the vehicle front structure 100 described in the first aspect embodiment of this application.

[0068] Specifically, refer to Figures 1-13 As shown, the assembly positioning fixture 200 includes: a fixture main frame 10, a first positioning mechanism 20 and a second positioning mechanism 30. The fixture main frame 10 has a first end and a second end arranged along the X direction. The first positioning mechanism 20 is located at the first end and the second positioning mechanism 30 is located at the second end. The first positioning mechanism 20 is positioned in conjunction with the first positioning hole 41 of the fender 4 and the second positioning mechanism 30 is positioned in conjunction with the fixed bracket 2.

[0069] Understandably, the first positioning mechanism 20 cooperates with the fender 4 for positioning, and the second positioning mechanism 30 cooperates with the fixed bracket 2 for positioning. The first positioning mechanism 20 has a tooling positioning pin 202, which is adapted to extend into the first positioning hole 41. The first positioning mechanism 20 and the fender 4 are positioned by the tooling positioning pin 202 and the first positioning hole 41, which limits the position of the fender 4 in the X and Y directions. The second positioning mechanism 30 cooperates with the first positioning mechanism 20 to ensure the precise positioning between the fender 4, the fixed bracket 2 and the headlight 3, reduce assembly errors, reduce the time for manual adjustment, improve production efficiency, ensure the assembly consistency of the front structure 100 of the vehicle, realize flexible assembly, and improve the production quality of the vehicle.

[0070] According to the assembly positioning fixture 200 for the front structure 100 of a vehicle provided in the embodiments of this application, by setting a first positioning mechanism 20 and a second positioning mechanism 30, not only is the overall consistency of the front structure 100 of the vehicle improved, but also production efficiency and product quality are enhanced. The second positioning mechanism 30 cooperates with the first positioning mechanism 20, and the positioning accuracy between the fender 4, the fixed bracket 2 and the headlight 3 is high, which reduces assembly errors, reduces the time for manual adjustment, improves production efficiency, improves the production quality of the vehicle, and achieves high tolerance while ensuring assembly accuracy, thereby realizing flexible assembly.

[0071] It should be noted that the assembly positioning fixture 200 for the front structure 100 of the vehicle in this application positions and assembles the front structure 100 of the vehicle after the fixed bracket 2 is connected to the front frame 1.

[0072] In some embodiments of this application, reference is made to Figures 9-11 As shown, the first positioning mechanism 20 includes: a first bracket 201, which is connected to the main frame 10 of the tooling and is movable relative to the main frame 10 of the tooling in the Y direction to adjust the position of the fender 4 in the Y direction. A tooling positioning pin 202 is formed on the first bracket 201. The tooling positioning pin 202 is adapted to extend into the first positioning hole 41. The tooling positioning pin 202 cooperates with the first positioning hole 41 to limit the position of the fender 4 in the X and Z directions. A scale 203 is provided on the first bracket 201.

[0073] Understandably, the tooling positioning pin 202 cooperates with the first positioning hole 41 to ensure the precise positioning of the fender 4 in the X and Z directions. By adjusting the position of the first bracket 201 in the Y direction and making precise adjustments through the scale 203, the precise positioning of the fender 4 in the Y direction is ensured. This makes the assembly process simpler and faster, the assembly effect better, reduces the time for manual adjustment, and improves production efficiency.

[0074] It should be noted that scale 203 is used to provide assembly personnel with an intuitive view to observe the displacement of the first positioning structure in the Y direction, and provides a reference for the later maintenance and correction of the assembly positioning fixture 200.

[0075] like Figure 10 As shown, the main frame 10 of the tooling is provided with a slide rail 101 extending along the Y direction. The first positioning mechanism 20 is movably connected to the slide rail 101, thereby restricting the movement of the first positioning mechanism 20 along the Y direction.

[0076] In some embodiments of this application, reference is made to Figures 9-11As shown, the second positioning mechanism 30 includes: a second bracket 301, which is connected to the main frame 10 of the tooling. The second bracket 301 is movable relative to the main frame 10 of the tooling in both the X and Z directions to adjust the position of the second positioning mechanism 30 in the X and Z directions. A tooling positioning groove 302 is formed on the second bracket 301. The bracket positioning pin 221 of the fixed bracket 2 is adapted to extend into the tooling positioning groove 302, and the bracket positioning pin 221 cooperates with the tooling positioning groove 302.

[0077] Understandably, the tooling positioning slot 302 cooperates with the bracket positioning pin 221 to determine the positioning of the assembly positioning tooling 200 in the Y direction. By adjusting the position of the second bracket 301 in the X and Z directions, the precise positioning of the headlight 3 and the fixed bracket 2 in the X and Z directions is ensured. At the same time, the precise positioning of the assembly positioning tooling 200 and the front frame 1 is also ensured. As a result, the assembly process is simpler and faster, the assembly effect is better, the time for manual adjustment is reduced, and the production efficiency is improved.

[0078] In some embodiments, a tooling positioning surface 303 is formed on the second positioning mechanism 30, and the second positioning mechanism 30 and the fixed bracket 2 are positioned by fitting the tooling positioning surface 303 with the second bracket positioning surface 222.

[0079] In some embodiments of this application, reference is made to Figure 1 As shown, both the first and second ends consist of two units. The two first ends are symmetrically arranged about the centerline extending along the X direction of the main frame 10 of the tooling. Each first end is symmetrically provided with a first positioning mechanism 20. Similarly, the two second ends are symmetrically arranged about the centerline extending along the X direction of the main frame 10 of the tooling. Each second end is provided with a second positioning mechanism 30. It can be understood that the symmetrical arrangement of the first positioning mechanism 20 and the second positioning mechanism 30 ensures the consistency of the assembly of the left and right fenders 4, avoiding asymmetry in left and right assembly, improving product quality, and also increasing assembly efficiency.

[0080] In some embodiments, locking devices may also be provided on the first positioning mechanism 20 and the second positioning mechanism 30, the locking devices being used to lock the first positioning mechanism 20 in the current position, and / or, the locking devices being used to lock the second positioning mechanism 30 in the current position.

[0081] In some embodiments of this application, reference is made to Figure 1As shown, the assembly and positioning fixture 200 for the vehicle front structure 100 also includes a linkage mechanism 40. The linkage mechanism 40 is located on the main frame 10 of the fixture. The linkage mechanism 40 includes a first linkage component and a second linkage component. The first linkage component and the second linkage component cooperate to drive the two first positioning mechanisms 20 together. It can be understood that the synchronous adjustment of the two first positioning mechanisms 20 is achieved through the linkage rod and linkage assembly, ensuring the consistency of the position of the two fenders 4 in the Y direction, better avoiding the occurrence of left and right assembly asymmetry, and further improving product quality and assembly efficiency.

[0082] Specifically, the first linkage is formed as a gear, and the second linkage is formed as a rack, with the gear and rack meshing and driving each other. However, the specific structural forms of the first and second linkages are not limited to these.

[0083] Finally, before assembling the headlight 3, tighten the fasteners and the rivet nuts 224 of the first connecting part 13 to fix the fixed bracket 2 to the front frame 1. Then, remove the assembly positioning fixture 200 so that the headlight positioning hole of the headlight 3 is positioned in conjunction with the bracket positioning pin 221. At the same time, make the headlight X-direction positioning surface 32 fit and position with the second bracket positioning surface 222. The fasteners pass through the headlight connecting hole 31 and are locked with the nuts 224 welded to the second plate 22 to complete the assembly of the headlight 3.

[0084] The sequence numbers of the embodiments in this application are for descriptive purposes only and do not represent the superiority or inferiority of the embodiments. The above are merely preferred embodiments of this application and do not limit the patent scope of this application. Any equivalent structural or procedural transformations made based on the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this application.

Claims

1. A front structure (100) for a vehicle, characterized in that, include: A front-end frame (1) having a first positioning part formed thereon; A fixed bracket (2) is formed on the fixed bracket (2), and the first positioning part is engaged with the second positioning part. The front end frame (1) and the fixed bracket (2) are connected through the cooperation of the first positioning part and the second positioning part. The headlight (3) is connected to the fixed bracket (2) and connected to the front frame (1) through the fixed bracket (2); Fender (4), the fender (4) is connected to the headlight (3), and the fender (4) has a first positioning hole (41).

2. The vehicle front structure (100) according to claim 1, characterized in that, The fixed bracket (2) has a first bracket positioning surface (211), and a second positioning part is formed on the first bracket positioning surface (211). The second positioning part has a connected positioning end (212) and a cylindrical pin (213). The first positioning part has a communicating frame positioning groove (11) and a recess (12). The shape of the frame positioning groove (11) matches the shape of the positioning end (212). The positioning end (212) is adapted to extend into the frame positioning groove (11). A locking tongue (121) is formed in the recess (12). One end of the locking tongue (121) is connected to the fixed bracket (2), and the other end of the locking tongue (121) extends into the frame positioning groove (11) and cooperates with the frame positioning groove (11) to limit the positioning end (212).

3. The vehicle front structure (100) according to claim 2, characterized in that, The fixed bracket (2) includes a first plate (21) and a second plate (22), the first plate (21) and the second plate (22) are arranged at an angle, the first plate (21) extends along the X direction, the first bracket positioning surface (211) is formed on the lower side of the first plate (21), a first connecting part (13) is formed on the front end frame (1), and a second connecting part corresponding to the first connecting part (13) is formed on the first plate (21). The second plate (22) extends along the Z direction, and a second bracket positioning surface (222) is formed on the front side of the second plate (22). A bracket positioning pin (221) extending along the X direction is formed on the second bracket positioning surface (222). The headlight (3) has a headlight positioning hole. The headlight (3) and the fixed bracket (2) are positioned by the bracket positioning pin (221) and the headlight positioning hole.

4. The vehicle front structure (100) according to claim 3, characterized in that, The first connecting part (13) is formed as a nut (224), and the second connecting part is formed as a first bracket connecting hole (214). The fixed bracket (2) and the front end frame (1) are connected to the nut (224) by fasteners passing through the bracket connecting hole. The second plate (22) has a second bracket connection hole (223), the headlight (3) has a headlight connection hole (31), and the headlight (3) and the front frame (1) are connected to the second bracket connection hole (223) by the fastener passing through the headlight connection hole (31).

5. An assembly and positioning fixture (200) for a vehicle front structure (100), characterized in that, The vehicle front structure (100) is the vehicle front structure (100) according to any one of claims 1-4, and the assembly positioning fixture (200) includes: Tooling main frame (10), the tooling main frame (10) has a first end and a second end arranged along the X direction; The first positioning mechanism (20) and the second positioning mechanism (30) are provided at the first end and the second positioning mechanism (30) is provided at the second end. The first positioning mechanism (20) is positioned in cooperation with the first positioning hole (41) of the fender (4) and the second positioning mechanism (30) is positioned in cooperation with the fixed bracket (2).

6. The assembly positioning fixture (200) for the front structure (100) of a vehicle according to claim 5, characterized in that, The first positioning mechanism (20) includes: a first bracket (201), which is connected to the tooling main frame (10) and is movable relative to the tooling main frame (10) in the Y direction to adjust the position of the fender (4) in the Y direction. A tooling positioning pin (202) is formed on the first bracket (201), which is adapted to extend into the first positioning hole (41). The tooling positioning pin (202) cooperates with the first positioning hole (41) to limit the position of the fender (4) in the X and Z directions. A scale (203) is provided on the first bracket (201).

7. The assembly positioning fixture (200) for a vehicle front structure (100) according to claim 6, characterized in that, The second positioning mechanism (30) includes: a second bracket (301), which is connected to the main frame (10) of the tooling. The second bracket (301) is movable relative to the main frame (10) of the tooling in both the X and Z directions to adjust the position of the second positioning mechanism (30) in the X and Z directions. A tooling positioning groove (302) is formed on the second bracket (301). The bracket positioning pin (221) of the fixed bracket (2) is adapted to extend into the tooling positioning groove (302). The bracket positioning pin (221) cooperates with the tooling positioning groove (302).

8. The assembly positioning fixture (200) for a vehicle front structure (100) according to claim 7, characterized in that, Both the first end and the second end include two, and the two first ends are symmetrically arranged about the centerline of the tooling main frame (10) extending in the X direction. Each first end is provided with a first positioning mechanism (20) symmetrically. The two second ends are symmetrically arranged about the centerline of the tooling main frame (10) extending in the X direction, and each second end is provided with a second positioning mechanism (30).

9. The assembly positioning fixture (200) for a vehicle front structure (100) according to claim 8, characterized in that, Also includes: Linkage mechanism (40) is provided on the main frame (10) of the tooling. The linkage mechanism (40) includes a first linkage component and a second linkage component. The first linkage component and the second linkage component cooperate to drive the two first positioning mechanisms (20) to link together.

10. The assembly positioning fixture (200) for a vehicle front structure (100) according to any one of claims 5-9, characterized in that, Also includes: A locking device is provided on the first positioning mechanism (20) and / or the second positioning mechanism (30) for locking the first positioning mechanism (20) and / or the second positioning mechanism (30) in the current position.

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