A cavity is formed in the top cover beam and penetrates through the two ends of the top cover beam in the extending direction of the top cover beam, and the wall thickness of the two ends of the top cover beam is larger than or equal to the wall thickness of the middle of the top cover beam. The pipe fittings are adopted to replace traditional plates, and the top cover cross beam is designed to be of a hollow structure, so that the top cover cross beam has good advantages in strength, torsional rigidity and fatigue performance; meanwhile, a flange edge of the tubular top cover cross beam is omitted, the hollow structure can reduce the weight of the top cover cross beam, and the light weight of the top cover cross beam can be achieved; in addition, one pipe fitting is adopted to replace a plurality of stamping parts, and the structural integrity and the mechanical performance of the part can be improved. The invention further provides a manufacturing device and a manufacturing method of the top cover cross beam.
本发明公开了一种顶盖横梁,该顶盖横梁内部设有腔体,腔体沿顶盖横梁的延伸方向贯穿顶盖横梁的两端,顶盖横梁两端的壁厚大于或等于顶盖横梁中部的壁厚。本发明通过采用管件代替传统的板材,将顶盖横梁设计为空心结构,可使顶盖横梁在强度、扭转刚度和疲劳性能上有较好的优势;与此同时,管状的顶盖横梁取消了法兰边,其中空结构又能减轻顶盖横梁的重量,可实现顶盖横梁的轻量化;此外,采用一个管件代替多个冲压件,可提高零件的结构整体性和机械性能。本发明还提供了一种顶盖横梁的制造装置和制造方法。
Top cover cross beam and manufacturing device and manufacturing method thereof
一种顶盖横梁及其制造装置和制造方法
2024-01-09
Patent
Electronic Resource
Chinese
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