A structure and its design method of the overlapping area of ​​the top cover of the outer panel of the automobile side wall

A side wall outer panel and area structure technology, which is applied in the direction of upper structure, upper structure sub-assembly, vehicle parts, etc., can solve the problem of side rebound of side wall outer panel and top cover overlapping area, and material utilization rate of side wall outer panel Low, cracked door openings on the outer panel of the side wall, etc., to reduce the risk of springback, improve the appearance quality, and ensure that the A surface is not deformed

Active Publication Date: 2015-08-12
CHERY AUTOMOBILE CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] (1) Cracks appear in areas such as side wall outer panel door openings;
[0008] (2) Severe slip line occurs on the upper part of the door opening of the side wall outer panel;
[0009] (3) Wrinkling and stacking of the side welding edges in the overlapping area of ​​the top cover of the outer panel of the side wall;
[0010] (4) The utilization rate of side wall outer panel materials is low;
[0011] (5) Severe springback occurs after side shaping in the overlapping area of ​​the top cover of the outer panel of the side wall

Method used

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  • A structure and its design method of the overlapping area of ​​the top cover of the outer panel of the automobile side wall
  • A structure and its design method of the overlapping area of ​​the top cover of the outer panel of the automobile side wall
  • A structure and its design method of the overlapping area of ​​the top cover of the outer panel of the automobile side wall

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Embodiment Construction

[0043] Combine below Figure 4 , the present invention is further described:

[0044] At the joint between the side wall outer plate and the top cover outer plate, the shape of the side wall outer plate is convex and arc-shaped. According to the material forming principle, when the side is shaped, due to the anisotropy of the material, it is easy to cause the A side of the side wall outer plate (ie The deformation of the exterior surface of the car), and the welded surface after side shaping is prone to wrinkling, stacking and springback.

[0045] Over-drawing, side shaping stamping process is adopted in the overlapping area of ​​the top cover of the side wall outer plate. If the depth of the side shaping steps is inconsistent, there will be serious deformation defects on the A surface of the part after side shaping. In order to reduce the risk of surface A deformation caused by side shaping, improve the structural strength of the upper part of the part, and reduce the risk o...

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Abstract

The invention relates to an automobile side body outer plate-top cover lap joint region structure and a design method thereof, wherein the lap joint region structure comprises a side body outer plate (1) and a top cover outer plate (2), which are lapped on each other through welding; a top cover decoration bar (3) is located in a groove formed between the side body outer plate (1) and the top cover outer plate (2); the side body outer plate (1) comprises a side shaped cut edge, a side shaped sidewall and a side shaped welding straight edge; the side shaped cut edge is connected with the side shaped welding straight edge through the side shaped sidewall to form a half-pace structure; the side shaped cut edge is in transition with the upper part of the side shaped sidewall through an outer feature fillet, and the side shaped welding straight edge is in transition with the lower part of the side shaped sidewall through a welding region fillet; a step is additionally arranged on the side shaped sidewall, and can improve the structural strength of the upper part of the side body outer plate (1) and reduces the rebound risk of the side body outer plate (1).

Description

technical field [0001] The invention relates to the field of design of automobile body-in-white parts, in particular to a structure and a design method of an overlapping region structure of an automobile side wall outer panel top cover. Background technique [0002] With the continuous progress of the automobile industry, people's requirements for the appearance quality and functions of automobiles are also increasing. In the development of complete vehicle projects, designers can control costs by improving material utilization and reducing the number of mold processes, so as to further adapt to the increasingly intensified market competition. In the field of automobile body-in-white, the side wall outer panel is the core of the body-in-white parts manufacturing. It has the characteristics of complex shape, large structural size, difficult forming, and high quality requirements for the outer surface. In order to achieve good external surface quality and high material utiliz...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B62D25/02B62D25/06
Inventor 贡见秀
Owner CHERY AUTOMOBILE CO LTD
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