CN213292212U

CN213292212U - Front bumper conversion support assembly structure

Info

Publication number: CN213292212U
Application number: CN202020205630.3U
Authority: CN
Inventors: 柳平学; 熊强; 吴志芬; 钦大亮; 王永青
Original assignee: Nanjing Automobile Group Corp; SAIC Maxus Vehicle Co Ltd Nanjing Branch
Current assignee: Nanjing Automobile Group Corp; SAIC Maxus Vehicle Co Ltd Nanjing Branch
Priority date: 2020-02-25
Filing date: 2020-02-25
Publication date: 2021-05-28
Anticipated expiration: 2030-02-25

Abstract

The utility model relates to a front bumper conversion support assembly structure, its characterized in that: the bumper support assembly is characterized by comprising bumper support assemblies symmetrically arranged at the left end and the right end of a front bumper, wherein the bumper support assemblies are composed of mounting support assemblies assembled on the bumper assemblies and corresponding conversion support assemblies installed on a first cross beam of a frame assembly, and the mounting support assemblies are fixedly connected with the conversion support assemblies to form an integrated structure through a positioning pin and two mounting bolts which are welded on the bumper mounting supports respectively. The utility model provides a long-term puzzlement truck boundary's bumper assembly when on the frame, because of there is great relative motion between last automobile body and bumper, be difficult to guarantee the difficult problem that clearance, face are poor between bumper and last automobile body. The assembly process is simple, and good appearance quality can be obtained.

Description

Front bumper conversion support assembly structure

Technical Field

The utility model relates to a bumper conversion support assembly, specific integrated bumper assembly and conversion support assembly's mounting structure that says so belongs to automobile parts assembly field.

Background

The bumper assembly is assembled on a first cross beam of a chassis frame in a bolt fastening mode, the assembly reference of the bumper assembly is arranged on the first cross beam of the chassis frame, an upper vehicle body is assembled on left and right longitudinal beams of the chassis frame through an elastic element front suspension assembly with a torsion bar, a size chain is long, the relation between a gap and a surface difference between the bumper and the upper vehicle body is difficult to guarantee, and meanwhile, the requirements of simple assembly and easy after-sale maintenance and convenient disassembly are also required to be met.

The conventional bumper mounting bracket assembly is shown in fig. 1, the assembly of the bumper is assembled by two small brackets and then assembled on the bumper to form a large bumper assembly, and finally the bumper assembly is integrally assembled on a first cross beam of a vehicle frame, wherein the assembly reference is the first cross beam of the vehicle frame, so that various deviations cannot be eliminated, and the deviation of gaps and surface differences between the bumper and an upper vehicle body is large.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that, overcome prior art's shortcoming, provide a rational in infrastructure, simple to operate, can eliminate the deviation, can guarantee the preceding bumper bracket assembly structure of the poor deviation of clearance sum face between bumper and last automobile body effectively.

In order to solve the technical problem, the utility model provides a front bumper conversion support assembly structure, set up the bumper support assembly at both ends about the front bumper including the symmetry, bumper support assembly comprises the installing support assembly of assembly on bumper assembly and the corresponding conversion support assembly of installing on the first crossbeam of frame assembly, the installing support assembly forms the integral type structure through welding a locating pin and two mounting bolts and conversion support assembly fixed connection on the bumper installing support respectively.

The utility model discloses the technical scheme who further injects is: the assembly parts of the left and right mounting bracket assemblies and the conversion bracket are respectively used for positioning the assembly of the bumper assembly through a positioning pin, and are respectively used for being connected and fastened with the corresponding M10 welding nuts on the left and right conversion brackets through two M10 mounting bolts on the left and right sides.

Furthermore, the conversion bracket assembly is formed by welding two rectangular plates after stamping; the positions of the two rectangular plates corresponding to the frame are respectively provided with bolt mounting holes for mounting the bolts connected with the frame and the bumper mounting bracket.

Furthermore, a main reference hole and an auxiliary reference hole for inserting a positioning pin in a tool during assembly by adopting a positioning tool are formed in the assembling surface of the rectangular plate and the mounting bracket along the edge of the bottom.

Furthermore, the conversion support adopts a positioning tool to assemble on a first cross beam of the frame assembly, the positioning tool is Y-shaped and comprises a tool body positioned with the upper vehicle body and positioned with the conversion support, the lower parts of two sides of the tool body are respectively fixedly connected with the left conversion support and the right conversion support, and the two positioning pins at the bottom of the tool body are respectively inserted into the corresponding mounting holes of the left conversion support and the right conversion support to be accurately positioned.

Furthermore, after the left and right conversion bracket assemblies are accurately positioned on the tool, the conversion bracket assemblies adopt phi 19 through holes on the left and right three assembly bolts of M10 to absorb the manufacturing and assembly deviation of the upper vehicle body, the front suspension assembly and the frame assembly.

Furthermore, the bottom of the conversion bracket is matched and installed with a positioning pin on the installation bracket through the main reference hole and the auxiliary reference hole.

The beneficial effects of utility model are that: the utility model discloses because when the conversion support assembles to the first crossbeam of frame assembly, what adopt is the location frock, the location benchmark of location frock is again on enclosing the inner panel before last automobile body, this makes the assembly of conversion support can ignore the manufacturing and the assembly deviation of preceding suspension assembly and first crossbeam, the big assembly of bumper is when adopting simple technology assembly, only need rely on the locating pin of self just can accurately assemble to ensure the clearance between bumper assembly and last automobile body and the poor relation of face. The problem that when a bumper which puzzles the truck boundary for a long time is assembled on a frame, the gap and the surface difference between the bumper and an upper truck body are difficult to ensure due to the fact that the upper truck body and the bumper have large relative movement is solved. The assembly process is simple, and good appearance quality can be obtained.

The utility model discloses simple structure, it is sealed reliable, application scope is wide, easily assembly and low cost. On the basis of fully considering the development cost of the parts, the requirement of firm installation of the parts is met. The utility model discloses rationally distributed and the cost of manufacture is low, is suitable for batch production, can satisfy the market demand that needs develop this work.

Drawings

Fig. 1 is a schematic structural view of a conventional bumper bracket assembly.

Fig. 2 is a schematic structural diagram of the present invention.

Fig. 3 is the assembly schematic diagram of the conversion bracket and the frame of the present invention.

Fig. 4 is an assembly diagram of the mounting bracket assembly and the conversion bracket assembly of the present invention.

Fig. 5 is a schematic view of the present invention after assembly.

Fig. 6 is a schematic diagram of the positioning tool structure of the present invention.

Fig. 7 is an assembly cross-sectional view of the mounting bracket assembly and the conversion bracket assembly of the present invention.

Fig. 8 is a schematic view of the structure of the conversion bracket of the present invention.

Description of the drawings: 1-mounting bracket, 1.1-left mounting bracket, 1.2-right mounting bracket, 2-conversion bracket, 2.1-left conversion bracket, 2.2-right conversion bracket, 3-mounting bolt, 4-main and auxiliary reference holes of left and right conversion bracket on the tool, 5-assembly tool B reference hole, 6-assembly tool C reference hole, 7-phi 19 via hole, 8-frame first cross beam, 9-upper vehicle body white body assembly, 10-front suspension assembly with torsion bar, 11-phi 12 via hole, 12-main and auxiliary reference pins on the mounting bracket, 13-positioning tool, 14-positioning pin, 14.2-lower right positioning pin, 14.3-lower left positioning pin, 14.4-upper positioning pin and 15-bottom positioning hole.

Detailed Description

Examples

In a conventional bumper mounting bracket assembly, as shown in fig. 1, a bumper assembly process is to assemble two small bracket assemblies together onto a bumper to form a large bumper assembly, and finally integrally assemble the bumper assembly onto a first cross beam of a vehicle frame, wherein the assembly reference is the first cross beam of the vehicle frame, so that various deviations cannot be eliminated, and the deviation of a gap and a surface difference between the bumper and an upper vehicle body is large.

The new front bumper conversion bracket assembly structure provided by the embodiment is composed of a split mounting bracket assembly and a conversion bracket assembly. The mounting process of the bumper comprises the following steps: firstly, a conversion bracket is assembled on a first cross beam of a frame assembly by adopting a positioning tool, the positioning reference of the tool is used for enclosing an assembly tool B, C reference hole on an inner plate in front of an upper vehicle body, a left conversion bracket assembly and a right conversion bracket assembly are accurately positioned on the tool, and 3 mounting bolts of M10 are respectively arranged on the left and the right sides of the conversion bracket assembly, and a phi 19 through hole is adopted on the conversion bracket to absorb the manufacturing and assembling deviation of the upper vehicle body, a front suspension assembly and the frame assembly, so that the original size chain is broken due to the action of the positioning tool, and the accurate position of the conversion bracket relative to the upper vehicle; then assemble the assembly after installing support and bumper are synthetic to the conversion support on, the detailed assembly condition of installing support and conversion support is seen in figure 4, each locating pin on left and right installing support during the assembly inserts respectively in the corresponding locating hole on the conversion support, respectively tighten left and right each 2M 10's construction bolt from the past backward, the installing support adopts phi 12 via hole to absorb the deviation, because headlight, preceding decorative board, door etc. all are that the car body is assembled as the benchmark above, adopt like this the utility model discloses bumper assembly after the assembly, the clearance and the face difference between preceding decorative board, door, headlamp etc. of last car body in the red frame of figure 5 can both be guaranteed to obtain better outward appearance quality.

The arrangement of a positioning tool is well considered in the synchronous design of the mechanism, the operation space of a wrench tool on the conversion support is enough, the free space of the bolt length is enough, the assembly process is simplified by adopting a mode of welding nuts, the installation operation difficulty is reduced, the bumper assembly can be independently disassembled under the condition of not influencing the position of the conversion support, the maintenance of other parts is facilitated, and the position relation between the bumper assembly and an upper vehicle body is not influenced during the secondary assembly. The mechanism is simple in design, efficient in production and reliable in use, meets the research and development production requirements of vehicle parts, and tests and production prove that the structure meets the requirements.

In addition to the above embodiments, the present invention may have other embodiments. All the technical solutions formed by adopting equivalent substitutions or equivalent transformations fall within the protection scope claimed by the present invention.

Claims

1. The utility model provides a front bumper conversion support assembly structure which characterized in that: the bumper support assembly is characterized by comprising bumper support assemblies symmetrically arranged at the left end and the right end of a front bumper, wherein the bumper support assemblies are composed of mounting support assemblies assembled on the bumper assemblies and corresponding conversion support assemblies installed on a first cross beam of a frame assembly, and the mounting support assemblies are fixedly connected with the conversion support assemblies to form an integrated structure through a positioning pin and two mounting bolts which are welded on the bumper mounting supports respectively.

2. The front-bumper conversion bracket assembly structure of claim 1, wherein: the assembly parts of the left and right mounting bracket assemblies and the conversion bracket are respectively used for positioning the assembly of the bumper assembly through a positioning pin, and are respectively used for being connected and fastened with the corresponding M10 welding nuts on the left and right conversion brackets through two M10 mounting bolts on the left and right sides.

3. The front-bumper conversion bracket assembly structure of claim 1, wherein: the conversion bracket assembly is formed by welding two rectangular plates after stamping; the positions of the two rectangular plates corresponding to the frame are respectively provided with bolt mounting holes for mounting the bolts connected with the frame and the bumper mounting bracket.

4. The front-bumper conversion bracket assembly structure according to claim 3, wherein: and a main reference hole and an auxiliary reference hole for inserting a positioning pin in a tool during assembly by adopting a positioning tool are formed in one surface of the rectangular plate assembled with the mounting bracket along the edge of the bottom.

5. The front-bumper conversion bracket assembly structure according to claim 3, wherein: the conversion support adopts the location frock to assemble to the first crossbeam of frame assembly, the location frock is the Y type, including with last car body location, and the frock body of conversion support location, the both sides lower part of the frock body respectively with left and right conversion support fixed connection to insert respectively through two locating pins of its bottom and pinpoint in the mounting hole that left and right conversion support corresponds.

6. The front-bumper conversion bracket assembly structure of claim 1, wherein: after the left and right conversion bracket assemblies are accurately positioned on the tool, through three assembly bolts of M10 on the left and right, the conversion brackets adopt a through hole with phi 19 to absorb the manufacturing and assembling deviation of the upper vehicle body, the front suspension assembly and the frame assembly.

7. The front-bumper conversion bracket assembly structure according to claim 4, wherein: the bottom of the conversion support is matched and installed with the positioning pin on the installation support through the main reference hole and the auxiliary reference hole.