Bumper side support structure, assembling method and vehicle

Abstract

The invention belongs to the technical field of automobile bodies in white, and provides a bumper side support structure, an assembling method and a vehicle. The bumper side support structure comprises a fender, a bumper, a metal plate side support and a plastic side support; the plastic side bracket is fixedly mounted on the surface of the fender, and a plurality of limiting seats are arranged on the surface of the plastic side bracket; the metal plate side support is fixedly installed on the surface of the bumper, and a plurality of positioning blocks are arranged on the surface of the metal plate side support. And the limiting block is clamped with the limiting seat when the fender and the bumper are assembled. The plastic side bracket on the fender side is matched with the metal plate side bracket on the bumper side, and the positioning block is clamped with the limiting seat by utilizing the degree of freedom of movement of the metal plate side bracket in the set direction, so that manufacturing and assembly tolerances can be counteracted, the uniformity of side seams of the fender and the bumper and the compliance of surface difference are guaranteed, the assembly precision and the connection stability are improved, and the production efficiency is improved. And meanwhile, due to the split type modular design, damaged parts can be conveniently and independently replaced after sale.

Description

Technical Field

[0001] This invention belongs to the field of automotive body-in-white technology, and specifically relates to the bumper side bracket structure, assembly method, and vehicle. Background Technology

[0002] In today's passenger car market, car exteriors are becoming more diverse and colorful, with a greater emphasis on unique or distinctive features. The gaps between the front and rear bumpers and the body panels are also becoming more varied. These new characteristics place higher and more challenging demands on the reliable connection and fixation between the bumpers and the body.

[0003] The existing connection and installation methods between the bumper and the body sheet metal are suitable for traditional shapes and gap patterns. The current bumper side brackets are generally made of POM (polyoxymethylene) plastic brackets, which are fixed to the fender (or side panel) in the Y or X direction by fasteners. For special gap patterns between the bumper and the body (the gap between the two parts is relatively long and the normal change of the gap area is large), it cannot meet the effective connection and fixation of the bumper and the fender (or side panel). The shape is limited by the structural design and cannot achieve the desired appearance gap effect.

[0004] In addition, when sheet metal brackets must be used at the joint between the bumper and the fender (or the outer side panel) (the plastic bracket's main frame has too large a Y-axis bend to achieve effective clamping), the tool operating space is limited when tightening the flanges on both sides of the bumper. If the joint is long, there will be insufficient operating space for tools such as torsion guns and sockets, which will result in the styling not achieving the desired joint length and effect. Summary of the Invention

[0005] To address the problems in the background art, this invention proposes a bumper side bracket structure, assembly method, and vehicle.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: This application provides a bumper side bracket structure, including a fender, a bumper, a sheet metal side bracket, and a plastic side bracket; The plastic side bracket is fixedly installed on the surface of the fender, and several limiting seats are provided on the surface of the plastic side bracket; The sheet metal side bracket is fixedly installed on the surface of the bumper, and the surface of the sheet metal side bracket is provided with several positioning blocks; When the fender and bumper are assembled, the sheet metal side bracket has the freedom to move in a set direction, which is used to drive the limit block and the limit seat to engage one by one.

[0007] Furthermore, it also includes self-tapping screws and screw heads; Several screw seats are mounted on the fender surface; Several self-tapping screws pass through the plastic side bracket and engage with the corresponding screw heads to fix the plastic side bracket to the fender surface.

[0008] Furthermore, one end of the sheet metal side bracket is bent to form an auxiliary frame, and auxiliary holes are provided on the surface of the auxiliary frame.

[0009] Furthermore, the sheet metal side bracket surface is provided with a number of first positioning holes and second positioning holes; The second positioning hole is located between the adjacent first positioning holes.

[0010] Furthermore, the positioning block includes a first positioning block and a second positioning block, the number of the first positioning blocks corresponds one-to-one with the number of the first positioning holes, and the number of the second positioning blocks corresponds one-to-one with the number of the second positioning holes; The first positioning block is a protruding structure integrated with the sheet metal side bracket and is located in the first positioning hole; The second positioning block is a bent plate structure integrated with the sheet metal side bracket and is located in the second positioning hole.

[0011] Furthermore, the limiting seat includes a first limiting seat and a second limiting seat; The first limiting seat corresponds one-to-one with the first positioning block; The second limit seat corresponds one-to-one with the second positioning block.

[0012] Furthermore, both the first limiting seat and the second limiting seat have openings; The opening of the first limiting seat is an outward-opening guide structure, used to guide the first positioning block; The opening of the second limiting seat has an inward-facing stepped structure for fixing the second positioning block.

[0013] Furthermore, one end of the bumper has a flange obtained by bending, and the flange slides in conjunction with the sheet metal side bracket; After the bumper is assembled to the fender, the surface of the sheet metal side bracket away from the flange abuts against the plastic side bracket.

[0014] This application also provides an assembly method for the above-mentioned bumper side bracket structure, comprising the following steps: Secure the plastic side brackets to the fender surface; The sheet metal side bracket is slidably installed on the surface of the bumper; Attach the bumper to the fender and push the sheet metal side bracket to slide in the set direction until the positioning block is engaged in the limit seat.

[0015] This application also provides a vehicle that integrates the aforementioned bumper side bracket structure.

[0016] The beneficial effects of this invention are: 1. The plastic side bracket (with limiting seat) on the fender side of the present invention cooperates with the sheet metal side bracket (with positioning block) on the bumper side. By utilizing the degree of freedom of the sheet metal side bracket to move in a set direction, the positioning block and the limiting seat can be effectively engaged. This can offset manufacturing and assembly tolerances, ensure uniformity of the joint between the fender and the bumper side, comply with surface differences, improve assembly accuracy and connection stability, and obtain the desired joint length. At the same time, the split modular design facilitates the individual replacement of damaged parts after sales, taking into account assembly convenience, structural reliability, cost economy and maintenance convenience. 2. This invention uses plastic side brackets and sheet metal side brackets at the joint between the bumper and the fender to connect and fix the two sides of the bumper flange and / or the fender. After installation, the bumper flange is sandwiched between the two brackets, and the Y direction is restricted by the limiting surface. The gap difference between the bumper and the fender can be controlled by adjusting the thickness of the bumper flange and the notch limiting surface on the flange (or the limiting seat on the plastic bracket).

[0017] Other features and advantages of the invention will be set forth in the following description, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of the invention may be realized and obtained by means of the structures pointed out in the description and the drawings. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 A longitudinal cross-sectional schematic diagram of a bumper side bracket structure according to the present invention is shown; Figure 2 A schematic diagram of the assembled fender and bumper is shown; Figure 3 A schematic diagram of the sheet metal side bracket of the present invention is shown; Figure 4 A schematic diagram of the sheet metal side bracket and the plastic side bracket of the present invention after connection is shown; Figure 5 A schematic diagram of the plastic side bracket of the present invention connected to the fender is shown; Figure 6 A schematic diagram of the structure of the plastic side bracket of the present invention is shown; Figure 7 A schematic cross-sectional view of a bumper side bracket structure according to the present invention is shown; Figure 8A flowchart of an assembly method according to the present invention is shown.

[0020] In the diagram: 1. Fender; 2. Bumper; 201. Flanged edge; 3. Sheet metal side bracket; 301. Auxiliary bracket; 302. First positioning hole; 303. First positioning block; 304. Second positioning hole; 305. Second positioning block; 4. Plastic side bracket; 401. First limit seat; 402. Second limit seat; 5. Self-tapping screw; 6. Screw seat. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] like Figure 1 As shown, a bumper side bracket structure is provided, which consists of a fender 1, a bumper 2, a sheet metal side bracket 3, a plastic side bracket 4, self-tapping screws 5, and screw seats 6. For ease of installation, the plastic side bracket 4 can be pre-installed on the surface of the fender 1 using the self-tapping screws 5 and screw seats 6. Then, the sheet metal side bracket 3 can be pre-installed on the surface of the bumper 2. During final assembly, the sheet metal side bracket 3 and the plastic side bracket 4 can be snapped together to assemble the bumper 2 and the fender 1.

[0023] The following is in conjunction with the appendix Figure 2-7 Further explanation of the support structure: like Figure 2 The diagram shows the assembled fender 1 and bumper 2. After assembly, the bumper 2 and fender 1 are joined at their contours, creating a smooth and seamless transition that ensures the integrity and visual harmony of the vehicle's front end.

[0024] like Figure 3 As shown, the sheet metal side bracket 3 is slidably mounted on the surface of the bumper 2. Several positioning blocks are provided on its surface. The positioning blocks include a first positioning block 303 and a second positioning block 305. At the same time, several first positioning holes 302 and second positioning holes 304 are also provided on the surface of the sheet metal side bracket 3. The second positioning holes 304 are located between adjacent first positioning holes 302. Moreover, one end of the sheet metal side bracket 3 is bent to form an auxiliary frame 301. The surface of the auxiliary frame 301 is provided with auxiliary holes.

[0025] It should be noted that when the fender 1 and bumper 2 are assembled, the sheet metal side bracket 3 has the freedom to move in a set direction, which can drive the positioning block of the sheet metal side bracket 3 to engage with the limiting seat of the plastic side bracket 4 one by one. Moreover, the auxiliary bracket 301 is the force-bearing position when pushing the sheet metal side bracket 3 to move. For example, a screwdriver head can be inserted into the auxiliary hole of the auxiliary bracket 301 to push the sheet metal side bracket 3 to the assembly position, which is the position where the sheet metal side bracket 3 and the plastic side bracket 4 mate.

[0026] Furthermore, the number of first positioning blocks 303 corresponds one-to-one with the number of first positioning holes 302, and they are protruding structures integral with the sheet metal side bracket 3 and located in the first positioning holes 302; the number of second positioning blocks 305 corresponds one-to-one with the number of second positioning holes 304, and they are bent plate structures integral with the sheet metal side bracket 3 (e.g., Figure 1 The U-shaped plate structure is located in the second positioning hole 304. This embodiment does not limit the number of the first positioning block 303 and the second positioning block 305. For example, there are three first positioning blocks 303, which are evenly distributed along the length of the sheet metal side bracket 3, and one second positioning block 305 is provided.

[0027] It should be noted that the first positioning block 303 can be obtained by stamping the sheet metal side bracket 3. For example, several U-shaped first positioning holes 302 can be punched on the surface of the sheet metal side bracket 3, and the first positioning block 303 is the raised contour structure formed after punching the first positioning holes 302. Similarly, the second positioning block 305 can also be obtained by punching, and after punching, the second positioning block 305 needs to be bent to obtain a U-shaped bent structure.

[0028] like Figure 4 As shown, the plastic side bracket 4 has been engaged with the sheet metal side bracket 3, and the first positioning block 303 and the second positioning block 305 have been inserted into the corresponding limiting seats.

[0029] like Figure 5 As shown, the plastic side bracket 4 is fixedly installed on the surface of the fender 1. Combined with... Figure 6 It can be seen that the surface of the plastic side bracket 4 is provided with a number of limiting seats corresponding to the number of positioning blocks, and the limiting seats include a first limiting seat 401 and a second limiting seat 402; combined with Figure 1 It can be seen that several self-tapping screws 5 pass through the plastic side bracket 4 and engage with the screw seats 6 on the surface of the fender 1 to connect the plastic side bracket 4 to the fender 1. In addition, the first limiting seat 401 corresponds one-to-one with the first positioning block 303, and the second limiting seat 402 corresponds one-to-one with the second positioning block 305. This embodiment does not limit the number of limiting seats; for example, three first limiting seats 401 and one second limiting seat 402 are provided.

[0030] Furthermore, combined Figure 1 It can be seen that both the first limiting seat 401 and the second limiting seat 402 have openings. The opening of the first limiting seat 401 is an outward-opening guide structure, while the opening of the second limiting seat 402 has an inward-facing stepped structure. When the sheet metal side bracket 3 and the plastic side bracket 4 are engaged, the first positioning block 303 moves toward the first limiting seat 401 and finally engages in the opening of the first limiting seat 401. Similarly, the second positioning block 305 moves toward the second limiting seat 402, and its U-shaped bent plate structure finally engages in the opening of the second limiting seat 402. Moreover, the stepped structure of the opening can restrict the second positioning block 305 from moving back, thus achieving a limiting effect.

[0031] like Figure 7 As shown, one end of the bumper 2 is a flange 201 obtained by bending, and the inclination angle of the flange 201 is about 30°. It slides in cooperation with the sheet metal side bracket 3. After the bumper 2 is assembled to the fender 1, the surface of the sheet metal side bracket 3 away from the flange 201 abuts against the plastic side bracket 4. That is, the flange 201 is sandwiched in the middle by the sheet metal side bracket 3 and the plastic side bracket 4, which has a limiting effect. At the same time, the Y direction of the flange 201 is restricted by the limiting surface. If the bumper 2 and the fender 1 in the sheet metal side bracket 3 or the plastic side bracket 4 area have excessive gap / surface difference values ​​during the assembly process, the gap and surface difference between the bumper 2 and the fender 1 can be controlled by adjusting the thickness of the flange 201 and the notch limiting surface on the flange 201 (or the limiting seat on the plastic bracket).

[0032] like Figure 8 The image shows an assembly method for assembling the aforementioned bumper side bracket structure, as detailed below: S1: Fix the plastic side bracket 4 to the surface of the fender 1. Specifically, first clean the area to be installed on the fender 1 to ensure that the surface is free of impurities, flat and clean. Then take out the plastic side bracket 4, align it with the preset installation position on the fender 1 so that it fits completely. Then take out the self-tapping screws 5, pass them through the mounting holes on the plastic side bracket 4 in sequence and align them with the screw seats 6 on the fender 1. Finally, use a Phillips screwdriver or electric screwdriver to tighten each self-tapping screw 5 evenly until the plastic side bracket 4 is fixed on the fender 1 and the surface of the plastic side bracket 4 is not tilted or protruding.

[0033] S2: Slide the sheet metal side bracket 3 onto the surface of the bumper 2; specifically, first check the mating surfaces of the sheet metal side bracket 3 and the bumper 2 to ensure there are no burrs or impurities and the sliding track is smooth. Then pick up the sheet metal side bracket 3, align it with the sliding track on the bumper 2, and make the sliding surface of the sheet metal side bracket 3 fit against the inner side of the flange 201 of the bumper 2. Then slowly push the sheet metal side bracket 3 into the track along the extension direction of the flange 201, keeping it moving horizontally to avoid jamming. Finally, continue pushing it into the preset initial position, using the guiding characteristics of the flange 201 to achieve initial positioning, ensuring that the position of the sheet metal side bracket 3 is not offset and the auxiliary bracket 301 faces outward.

[0034] S3: Assemble the bumper 2 onto the fender 1 and push the sheet metal side bracket 3 to slide along the set direction until the positioning block is engaged in the limiting seat. Specifically, first move the bumper 2 with the sheet metal side bracket 3 already installed to the front assembly position of the vehicle, then align the splicing end of the bumper 2 with the outline edge of the fender 1, so that the appearance surfaces of the two are smoothly connected and the gap at the splicing point is uniform. Then select an appropriate tool (such as a screwdriver), insert the tool head into the auxiliary hole of the sheet metal side bracket 3, and apply a push force smoothly along the length direction of the fender 1 with the auxiliary bracket 301 as the force point, push the sheet metal side bracket 3 to drive the bumper 2 to slide slowly, and continue to push the sheet metal side bracket 3 until you feel obvious resistance (the first positioning block 303 and the second positioning block 305 are completely engaged in the first limiting seat 401 and the second limiting seat 402) and cannot move any further. Finally, observe the splicing state of the bumper 2 and the fender 1, and confirm that the outline of the two is naturally transitioned and there is no warping or misalignment, and complete the overall assembly.

[0035] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A bumper side bracket structure, characterized in that, Includes fender (1), bumper (2), sheet metal side bracket (3) and plastic side bracket (4); The plastic side bracket (4) is fixedly installed on the surface of the fender (1), and a plurality of limiting seats are provided on the surface of the plastic side bracket (4); The sheet metal side bracket (3) is slidably mounted on the surface of the bumper (2), and the surface of the sheet metal side bracket (3) is provided with a number of positioning blocks; When the fender (1) is assembled with the bumper (2), the sheet metal side bracket (3) has the freedom to move in a set direction, which is used to drive the limiting block to engage with the limiting seat one by one.

2. The bumper side bracket structure according to claim 1, characterized in that, It also includes self-tapping screws (5) and screw heads (6); Several of the aforementioned screw seats (6) are mounted on the surface of the fender (1); Several self-tapping screws (5) pass through the plastic side bracket (4) and engage with the corresponding screw seat (6) to fix the plastic side bracket (4) to the surface of the fender (1).

3. The bumper side bracket structure according to claim 1, characterized in that, One end of the sheet metal side bracket (3) is bent to form an auxiliary frame (301), and the surface of the auxiliary frame (301) is provided with auxiliary holes.

4. The bumper side bracket structure according to claim 1, characterized in that, The sheet metal side bracket (3) has several first positioning holes (302) and second positioning holes (304) on its surface. The second positioning hole (304) is located between the adjacent first positioning holes (302).

5. A bumper side bracket structure according to claim 4, characterized in that, The positioning block includes a first positioning block (303) and a second positioning block (305). The number of the first positioning blocks (303) corresponds one-to-one with the number of the first positioning holes (302), and the number of the second positioning blocks (305) corresponds one-to-one with the number of the second positioning holes (304). The first positioning block (303) is a protruding structure integral with the sheet metal side bracket (3) and is located in the first positioning hole (302); The second positioning block (305) is a bent plate structure integrated with the sheet metal side bracket (3) and is located in the second positioning hole (304).

6. A bumper side bracket structure according to claim 5, characterized in that, The limiting seat includes a first limiting seat (401) and a second limiting seat (402); The first limiting seat (401) corresponds one-to-one with the first positioning block (303); The second limiting seat (402) corresponds one-to-one with the second positioning block (305).

7. A bumper side bracket structure according to claim 6, characterized in that, Both the first limiting seat (401) and the second limiting seat (402) have openings; The opening of the first limiting seat (401) is an outwardly opening guide structure, used to guide the first positioning block (303). The opening of the second limiting seat (402) is provided with an inward step structure for fixing the second positioning block (305).

8. A bumper side bracket structure according to claim 1, characterized in that, One end of the bumper (2) is a flange (201) obtained by bending, and the flange (201) slides in conjunction with the sheet metal side bracket (3); After the bumper (2) is assembled to the fender (1), the surface of the sheet metal side bracket (3) away from the flange (201) abuts against the plastic side bracket (4).

9. An assembly method for assembling a bumper side bracket structure according to any one of claims 1-8, characterized in that, Includes the following steps: Fix the plastic side bracket (4) to the surface of the fender (1); The sheet metal side bracket (3) is slidably installed on the surface of the bumper (2); The bumper (2) is attached to the fender (1), and the sheet metal side bracket (3) is pushed to slide along the set direction until the positioning block is inserted into the limit seat.

10. A vehicle, characterized in that, The device integrates a bumper side bracket structure as described in any one of claims 1-8.

Images