CN117565979A

CN117565979A - A threshold anti-collision beam bracket and anti-collision structure

Info

Publication number: CN117565979A
Application number: CN202410012255.3A
Authority: CN
Inventors: 周立群; 张彦; 郑冰
Original assignee: Chery Automobile Co Ltd
Current assignee: Chery Automobile Co Ltd
Priority date: 2024-01-03
Filing date: 2024-01-03
Publication date: 2024-02-20

Abstract

A threshold anti-collision beam support and an anti-collision structure comprise an upper support and a lower support, wherein one ends of the upper support and the lower support are respectively riveted on a threshold anti-collision beam, and the other ends of the upper support and the lower support are welded on a vehicle body threshold beam; the contact position of the threshold anti-collision beam and the vehicle body threshold beam is fixedly connected. The invention provides a threshold anti-collision beam bracket, which is characterized in that a plurality of brackets are riveted on a threshold anti-collision beam by utilizing a riveting technology, so that the gap between the threshold anti-collision beam and a vehicle body (a lower vehicle body threshold beam) can be effectively adjusted, and the gap requirement of structural adhesive is met.

Description

Threshold anticollision beam support and anticollision structure

Technical Field

The invention relates to the field of automobile manufacturing, in particular to a threshold anti-collision beam bracket and an anti-collision structure.

Background

With the vigorous development of new energy automobile markets, the requirements on side collision of automobiles are higher and higher, passengers are required to be ensured to be safe, and higher requirements are also put forward on the safety of battery pack modules of new energy automobiles. This means that new demands are also made on the design of the body structure, wherein the design of the threshold impact beam system is also of great importance.

The performance assurance of the threshold anti-collision beam in the side collision process is a primary target in the design process, wherein the matching gap between the threshold anti-collision beam and the vehicle body (lower vehicle body threshold beam) becomes a key for achieving the target, and because factors such as manufacturing errors of parts, errors of welding processes and the like in the manufacturing process can directly influence the instability (larger or smaller) of the matching gap, the structural adhesive can be used for curing the matching gap, the instability of the matching gap can influence the performance of the structural adhesive, and finally, the matching gap becomes an important factor for performance evaluation in the side collision process of the threshold anti-collision beam.

Disclosure of Invention

The invention aims to provide a threshold anti-collision beam bracket and an anti-collision structure, which are used for solving the problem that the performance of structural adhesive is affected by the instability of a matching gap.

In order to achieve the above purpose, the present invention adopts the following technical scheme:

a threshold anti-collision beam support comprises an upper support and a lower support, wherein one ends of the upper support and the lower support are respectively riveted on a threshold anti-collision beam, and the other ends of the upper support and the lower support are welded on a vehicle body threshold beam.

Further, the upper bracket comprises a connecting section, a riveting section and a welding section; the riveting section and the welding section are respectively arranged at two ends of the connecting section to form a C-shaped structure.

Further, the upper bracket and the lower bracket have the same structure and are all integrally formed; the upper bracket and the lower bracket are arranged in pairs, and the number of pairs is more than or equal to two.

Further, when the upper bracket and the lower bracket are installed, the concave surface of the C-shaped structure faces the car body threshold beam.

Further, the contact position of the threshold anti-collision beam and the vehicle body threshold beam is connected by adopting structural adhesive.

Further, an anti-collision structure comprises the threshold anti-collision beam bracket, the threshold anti-collision beam and the vehicle body threshold beam; one ends of the upper bracket and the lower bracket are respectively riveted on the threshold anti-collision beam, and the other ends are welded on the vehicle body threshold beam.

Further, the whole body of the car body threshold beam is of a C-shaped structure, and the car body threshold beam and the threshold anti-collision beam support are oppositely arranged.

Further, gaps between the threshold anti-collision beams and the vehicle body threshold beams are connected through structural adhesive, and the gaps are less than or equal to 0.5mm.

Compared with the prior art, the invention has the following technical effects:

the invention provides a threshold anti-collision beam bracket, which is characterized in that a plurality of brackets are arranged on a threshold anti-collision beam, the brackets are solidified by adopting an FDS riveting process, Y-direction size adjustment (according to the size precision of actual parts) can be carried out at a sub-packaging station, so that the glue spreading at the brackets is met, the gap adjustment between the threshold anti-collision beam and a vehicle body (lower vehicle body threshold beam) can be effectively carried out, and the gap requirement of structural glue is met.

The design of the threshold anti-collision beam bracket provided by the invention ensures the effectiveness and stability of a matching gap between the threshold anti-collision beam and a vehicle body (lower vehicle body threshold beam).

Drawings

FIG. 1 is a schematic view of the structure of the bracket of the invention.

Fig. 2, schematic view of a sill beam gap for a sill crash Liang Yumen.

Fig. 3, schematic view of an underbody rocker (black dashed box area).

Wherein:

11. the upper bracket 12, the lower bracket 2, the threshold anti-collision beam 3, the vehicle body threshold beam 4 and the structural adhesive.

Detailed Description

The following description of the embodiments of the present invention will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the invention are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

In the description of the present invention, it should be noted that, as the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," and the like are used for convenience in describing the present invention and simplifying the description based on the azimuth or positional relationship shown in the drawings, it should not be construed as limiting the present invention, but rather should indicate or imply that the devices or elements referred to must have a specific azimuth, be constructed and operated in a specific azimuth. Furthermore, the terms "first," "second," "third," and the like, as used herein, are used for descriptive purposes only and are not to be construed as indicating or implying any relative importance.

In the description of the present invention, it should be noted that unless explicitly stated and limited otherwise, the terms "mounted," "connected," and "connected" should be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.

The invention aims at the technical problems, and provides the threshold anti-collision beam bracket which can effectively control the matching gap between the threshold anti-collision beam and the vehicle body (lower vehicle body threshold beam), meets the gap requirement of structural adhesive, and has a similar structure which is not put into practical use yet.

The invention adopts the following technical scheme for solving the problems. Through utilizing FDS riveting technique on threshold anticollision roof beam, rivet several support, can carry out the clearance adjustment of threshold anticollision roof beam and automobile body (lower automobile body threshold roof beam) effectively, reach the clearance requirement of structural adhesive.

Specific:

a threshold anti-collision beam support comprises an upper support 11 and a lower support 12, wherein one ends of the upper support 11 and the lower support 12 are respectively riveted on a threshold anti-collision beam, and the other ends of the upper support 11 and the lower support 12 are welded on a vehicle body threshold beam.

In another aspect, the invention provides another embodiment:

an anti-collision structure comprising a threshold impact beam bracket as claimed in any one of claims 1 to 5, a threshold impact beam 2 and a vehicle body threshold beam 3; one ends of the upper bracket 11 and the lower bracket 12 are respectively riveted on the threshold anti-collision beam 2, and the other ends are welded on the vehicle body threshold beam 3.

The whole body of the car body threshold beam is of a C-shaped structure and is oppositely arranged with a threshold anti-collision beam bracket.

The gap between the threshold anti-collision beam and the vehicle body threshold beam is connected through the structural adhesive 4, and the gap is less than or equal to 0.5mm.

The assembly method comprises the following steps:

1. and in the sub-packaging station, the threshold anti-collision beam support is riveted through FDS, and the threshold anti-collision beam 2 is subjected to size solidification connection.

2. At the gluing station, structural glue is sprayed on the matching surface of the threshold anti-collision beam 2 (the matching position of the threshold beam 3).

3. And in a lower vehicle body main line (welding) station, welding and solidifying the threshold anti-collision beam assembly { threshold anti-collision beam 2+threshold anti-collision beam bracket 1} and the vehicle body lower vehicle body threshold beam 3 through positioning a clamp.

4. Debugging: in order to ensure the curing quality of the structural adhesive, the target is debugged: the gap between the threshold anti-collision Liang Yumen and the threshold beam is less than or equal to 0.5mm. The dimensional deviation caused by the matching surface Y direction { matching with the anti-collision beam }, the matching surface Y direction { matching with the lower car body threshold beam }, the welding process influence and the like of the lower car body threshold beam cannot meet the 0.5mm matching gap requirement of the structural adhesive. The bracket is solidified by adopting an FDS riveting process, and Y-direction size adjustment can be carried out at a sub-packaging station (according to the size precision of an actual part) so as to meet the requirement of gluing clearance.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and not for limiting the same; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the invention.

Claims

1. A sill anti-collision beam bracket, which is characterized in that it includes an upper bracket (11) and a lower bracket (12). One end of the upper bracket (11) and the lower bracket (12) is riveted to the sill anti-collision beam respectively, and the other end is riveted to the sill anti-collision beam. One end is welded to the body sill beam.

2. A door sill anti-collision beam bracket according to claim 1, characterized in that the upper bracket (11) includes a connecting section, a riveting section and a welding section; the riveting section and the welding section are respectively provided at both ends of the connecting section, Form a C-shaped structure.

3. A door sill anti-collision beam bracket according to claim 1, characterized in that the upper bracket (11) and the lower bracket (12) have the same structure and are both integrally formed structures; the upper bracket (11) and the lower bracket (12) Appear in pairs, the number of pairs is greater than or equal to two pairs.

4. A door sill anti-collision beam bracket according to claim 2, characterized in that when the upper bracket (11) and the lower bracket (12) are installed, the concave surface of the C-shaped structure faces the vehicle body sill beam.

5. A sill anti-collision beam bracket according to claim 1, characterized in that the contact positions of the sill anti-collision beam and the vehicle body sill beam are connected using structural glue (4).

6. An anti-collision structure, characterized in that it includes a sill anti-collision beam bracket, a sill anti-collision beam (2) and a vehicle body sill beam (3) as described in any one of claims 1 to 5; an upper bracket ( One end of 11) and the lower bracket (12) is riveted to the sill anti-collision beam (2) respectively, and the other end is welded to the vehicle body sill beam (3).

7. An anti-collision structure according to claim 6, characterized in that the vehicle body sill beam has a C-shaped structure as a whole and is arranged opposite to the sill anti-collision beam bracket.

8. An anti-collision structure according to claim 6, characterized in that the gap between the sill anti-collision beam and the vehicle body sill beam is connected by structural glue (4).

9. An anti-collision structure according to claim 8, characterized in that the gap is ≤0.5mm.