The invention relates to the technical field of automobile body manufacturing, in particular to an automobile top cover outer plate and a machining method thereof. The automobile top cover outer plate comprises an outer plate body, the outer plate body is provided with a convex rib, the convex rib is provided with a convex cavity, the convex cavity is formed by punching two plates for at least three times, the edge of the outer plate body is punched to form a flange, the convex cavity comprises an open convex cavity and a closed convex cavity, the closed convex cavity is formed between the two plates, and the convex cavity is provided with a convex rib. And the open convex cavity is independently formed by a plate. Compared with the existing single-layer convex ribs, the convex ribs with the convex cavity structures are more difficult to deform due to the arrangement of the group of convex ribs with the convex cavity structures. The outer top surface and the inner top surface of the convex cavity can absorb more energy when bearing impact force step by step when being collided and deformed, and the inter-plate bonding energy generated during stamping can consume a large amount of energy, so that the impact resistance of the automobile top cover outer plate is improved, and the safety of passengers can be more effectively protected.
本发明公开了一种本发明涉及车身制造技术领域,具体涉及一种汽车顶盖外板及其加工方法。汽车顶盖外板包括外板本体,所述外板本体具有凸筋,所述凸筋具有凸腔,所述凸腔由两块板材经至少三次冲压而成,并在外板本体的边缘冲压形成翻边,所述凸腔包括开放凸腔和封闭凸腔,所述封闭凸腔形成于所述两块板材之间,所述开放凸腔单独由一块板材形成。由于包括一组具有凸腔结构的凸筋,相较于现有的单层凸筋更能难变形。凸腔的外顶面、内顶面在受撞击变形时在分步承受冲击力时会更多的吸收能量,冲压时产生的板间结合能也会消耗很大能量,提高汽车顶盖外板的抗冲击力,能够更加有效的保护乘车人员的安全。
Automobile top cover outer plate and machining method thereof
汽车顶盖外板及其加工方法
14.06.2024
Patent
Elektronische Ressource
Chinesisch
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