CN214524073U

CN214524073U - Side wall inner ring structure

Info

Publication number: CN214524073U
Application number: CN202022631643.XU
Authority: CN
Inventors: 付军鹏
Original assignee: IAT Automobile Technology Co Ltd
Current assignee: IAT Automobile Technology Co Ltd
Priority date: 2020-11-15
Filing date: 2020-11-15
Publication date: 2021-10-29
Anticipated expiration: 2030-11-15

Abstract

The utility model relates to a side wall inner ring structure belongs to the technical field of automobile design and manufacturing. The utility model discloses a side wall inner ring structure passes through the integrated side wall part of laser tailor-welding by threshold inner panel, A post inner panel, roof beam inner panel and B post inner panel. The utility model discloses a side wall inner ring structure has not only reduced part quantity, has realized the lightweight, has also reduced welding processes simultaneously to welding position is owing to fatigue cracking's risk has been reduced.

Description

Side wall inner ring structure

Technical Field

The utility model relates to a technical field of automobile design and manufacturing, more specifically say, the utility model relates to a side wall inner ring structure.

Background

In the prior art, the side wall inner structure is formed by welding 4 parts, as shown in fig. 1, the overlapping welding surface between two adjacent parts can increase the weight of a vehicle body. As shown in fig. 2 and 3, the B-pillar inner panel 1, the roof side rail inner panel 2 and other side wall parts 5 are welded into a side wall assembly. As shown in fig. 4 to 5, the a-pillar inner panel 3, the rocker inner panel 4, and the lower body other parts 6 are first welded to form the lower body assembly. And then, carrying out general tailor-welding on the upper and lower vehicle bodies, wherein during the general tailor-welding, as shown in fig. 6, spot welding cannot be carried out at the positions of the A-pillar inner plate 3 and the upper side beam inner plate 2 due to structural shielding (circled positions), and the A-pillar inner plate and the upper side beam inner plate are usually connected by using two-layer shielded welding or bolts. As shown in fig. 7, spot welding is not performed between the B-pillar inner panel 1 and the rocker inner panel 4 due to structural shielding (a circled portion), and the two-spot welding is generally used for connection. Because two weld or bolted connections have been increased, brought very big inconvenience for workshop production, two weld connections of protecting have reduced the reliability and the intensity of connecting simultaneously. The B-pillar inner plate is made of one material and thick, and deformation of the B-pillar during side collision is not facilitated.

In the above-mentioned structure, part quantity is more, is unfavorable for the automobile body lightweight, simultaneously because the restriction of structure, can not all connect the position with spot welding connection every, increases two and protects welding and bolted connection, is unfavorable for the convenience of production.

SUMMERY OF THE UTILITY MODEL

For solving the above-mentioned technical problem that exists among the prior art, the utility model aims to provide a side wall inner ring structure.

The utility model discloses a side wall inner ring structure, its characterized in that: the structure comprises a doorsill inner plate, an A-column inner plate, an upper side beam inner plate and a B-column inner plate; the upper end of the A-pillar inner plate is provided with an upper connecting part matched with the upper edge beam inner plate, the lower end of the A-pillar inner plate is provided with a lower connecting part matched with the threshold inner plate, the middle part of the upper edge beam inner plate is provided with a middle upper connecting part extending downwards, and the middle part of the threshold inner plate is provided with a middle lower connecting end extending upwards; the upper connecting portion and the lower connecting portion of the A-column inner plate are respectively spliced together with the end portions of the upper edge beam inner plate and the threshold inner plate and are welded together by laser, and the upper end and the lower end of the B-column inner plate are respectively spliced together with the middle upper connecting portion of the upper edge beam inner plate and the middle lower connecting end of the threshold inner plate and are welded together by laser.

Compared with the prior art, the utility model discloses a side wall inner ring structure has following beneficial effect:

(1) 4 parts are integrated into 1 part, so that the weight of the parts is reduced;

(2) spot welding, secondary shielded welding and bolt connection are changed into laser welding, so that the fatigue strength and the impact strength of a connection position are improved;

(3) the integral punch forming reduces errors caused by welding and improves the precision of parts;

(4) the steel plate is composed of blanks with different strengths and different material thicknesses, and deformation and reinforcement of parts are further utilized.

Drawings

Fig. 1 is a schematic view of the inner structure of a side panel in the prior art.

FIG. 2 is a schematic view of the assembly process of a side wall assembly in the prior art.

FIG. 3 is a schematic view of an assembly structure of a side wall assembly in the prior art.

Fig. 4 is a schematic view illustrating an assembling process of a lower body in the related art.

Fig. 5 is a schematic view of an assembly structure of a lower vehicle body in the related art.

FIG. 6 is a schematic view of a connection structure of an A-pillar inner plate and an upper edge beam inner plate.

Fig. 7 is a schematic view of a connection structure of a B-pillar inner panel and a rocker inner panel.

Fig. 8 is a schematic structural view of the side wall inner ring structure of the present invention.

FIG. 9 is a schematic view of an assembly process of the side panel inner ring structure and the lower body assembly.

FIG. 10 is a schematic view of an assembly structure of the side wall inner ring structure and the lower body assembly.

Detailed Description

The following will be described in detail with reference to the specific embodiments of the present invention to help those skilled in the art to understand the technical solution of the present invention more completely, accurately and deeply.

Example 1

As shown in fig. 8, the side sill inner ring structure of the present embodiment includes a rocker inner panel 40, an a-pillar inner panel 30, a roof side rail inner panel 20, and a B-pillar inner panel 10. The upper end of A post inner panel 30 be provided with roof side rail inner panel 20 complex upper junction 31, the lower extreme of A post inner panel 30 be provided with threshold inner panel 40 complex lower junction 32, the middle part of roof side rail inner panel 20 is provided with downwardly extending's middle part upper junction 21, the middle part of threshold inner panel 40 is provided with the middle part lower junction 41 of upwards extending. The upper connecting portion 31 and the lower connecting portion 32 of the a-pillar inner panel 30 are respectively spliced and laser-welded with the end portions of the roof side rail inner panel 20 and the sill inner panel 40, and the upper end and the lower end of the B-pillar inner panel 10 are respectively spliced and laser-welded with the middle upper connecting portion 21 of the roof side rail inner panel 20 and the middle lower connecting end 41 of the sill inner panel 40.

As shown in fig. 9-10, the welding sequence for the body-in-white welding assembly is: the integral side wall inner ring structure is welded with the lower vehicle body assembly to form a white vehicle body framework assembly. And welding the white body framework assembly and the side wall outer plate assembly to form a white body welding assembly. The side wall inner ring structure of the embodiment can be applied to cars and SUV vehicles, and the strength grade and the material thickness of the adopted material can be adjusted according to collision requirements. The side wall inner ring structure of the embodiment not only reduces the number of parts and realizes light weight, but also reduces welding procedures and reduces the risk of fatigue cracking of a welding part.

For those skilled in the art, the specific embodiments are only exemplary descriptions of the present invention, and it is obvious that the present invention is not limited by the above-mentioned manner, and various insubstantial modifications are possible within the protection scope of the present invention as long as the method concept and technical solution of the present invention are adopted.

Claims

1. The utility model provides a side wall inner ring structure which characterized in that: the structure comprises a doorsill inner plate, an A-column inner plate, an upper side beam inner plate and a B-column inner plate; the upper end of the A-pillar inner plate is provided with an upper connecting part matched with the upper edge beam inner plate, the lower end of the A-pillar inner plate is provided with a lower connecting part matched with the threshold inner plate, the middle part of the upper edge beam inner plate is provided with a middle upper connecting part extending downwards, and the middle part of the threshold inner plate is provided with a middle lower connecting end extending upwards; the upper connecting portion and the lower connecting portion of the A-column inner plate are respectively spliced together with the end portions of the upper edge beam inner plate and the threshold inner plate and are welded together by laser, and the upper end and the lower end of the B-column inner plate are respectively spliced together with the middle upper connecting portion of the upper edge beam inner plate and the middle lower connecting end of the threshold inner plate and are welded together by laser.