A vehicle side wall outer panel door sill area structure and its design method
A side wall outer panel and area structure technology, applied in the direction of upper structure, upper structure sub-assembly, vehicle parts, etc., can solve the problem of cracking in the side wall threshold area, poor matching of side wall and fender appearance, side wall outer panel Problems such as springback in the threshold area can be improved to improve the appearance matching accuracy, shorten the development cycle of the whole vehicle, and reduce the development cost
Active Publication Date: 2016-01-13
CHERY AUTOMOBILE CO LTD
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Problems solved by technology
[0013] The present invention designs a structure and design method of the door sill area of the outer panel of the side wall of the automobile, which solves the following technical problems: (1) cracks appear in the door sill area of the side wall and defects of compression deformation on the surface of parts; (2) parts in the door sill area of the side wall Severe wear and tear on the mold during the forming process; (3) rebound and warping defects in the threshold area of the side panel outer panel; (4) poor matching of the appearance of the side panel and the fender
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[0039] Combine below Figure 5 , the present invention is further described:
[0040] Such as Figure 5 As shown, firstly, the curvature value of the upper profile A of the side sill is restricted, and the radius of curvature of the upper profile A of the side sill is required to be as large as possible, and shall not be greater than 500mm. The larger the radius of curvature of the upper profile A of the side wall sill, the greater the tension in this area of the sill during the sheet forming process, the plastic deformation and thinning rate of the part can meet the requirements, and the surface of the part will not produce compression deformation defects. At the same time, there will be no large-area warping or springback defects in the lower part of the side sill.
[0041] The characteristic fillet radius B1 of the side wall of the door joint area is required to be as large as possible, and the recommended value is greater than R6mm, otherwise serious cracking will occur ...
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The invention relates to an automobile side outer panel threshold area structure and a design method thereof. The structure comprises a side threshold outer side wall, a side threshold inner side wall and a side outer panel threshold upper area profile (A), wherein the side threshold outer side wall is connected with the side threshold inner side wall through the side outer panel threshold upper area profile (A); the side outer panel threshold upper area profile (A) is an arc profile; and the structure is characterized in that a step (T) is arranged on the side threshold outer side wall for transition. Through the invention, the problems of springback and warping in the side threshold area are solved, the strength of the threshold area is enhanced, the overall quality and the appearance matching accuracy are improved, the overall development cost is reduced, and the overall development period is shortened.
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 automobile side wall outer panel threshold area. Background technique [0002] A new car costs a lot of money from initial market research to mass production. The cost and time of body development and design account for about 70% of the cost and time of vehicle development. 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 the development process of vehicle body parts, the side panel takes a long time and costs a lot. There are many overlapping parts around the outer panel of the side wall, and the quality of the finished product will directly affect the assembly and appearance clearance requirements of the vehicle. [0003] figure 1 As shown by ...
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IPC IPC(8): B62D25/22B62D25/02
Inventor 贡见秀沈左军孟祥新
Owner CHERY AUTOMOBILE CO LTD