The invention belongs to the technical field of electric bicycles, and discloses a forming method of a front pipe and a lower pipe, a pipe assembly, a bicycle frame and a spinning mechanism. The forming method of the front pipe and the lower pipe sequentially comprises the steps of blanking, spinning, preforming, thermoplastic forming and cutting. The front tube and the lower tube which are integrally formed are cut to form a tube assembly, and the battery cover in the tube assembly is obtained through cutting. The frame includes a motor seat and the tube assembly. The spinning mechanism is used for conducting spinning on the plate in the integrated forming process. According to the forming method of the front pipe and the lower pipe, the pipe assembly, the frame and the spinning mechanism, the front pipe and the lower pipe can be integrally formed, the overall strength of a product is improved, surfacing marks generated by welding are avoided, the product quality is guaranteed, and the productivity is improved.
本发明属于电动自行车技术领域,公开了一种前管和下管的成型方法、管组件、车架及旋压机构。前管和下管的成型方法依次为下料、旋压、预成型、热塑成型以及切割。一体成型的前管和下管被切割后形成管组件,管组件中的电池盖由切割得到。车架包括马达座以及该管组件。旋压机构用于在一体成型的过程中对板料进行旋压。前管和下管的成型方法、管组件、车架及旋压机构能够将前管和下管一体成型,提高产品的整体强度,避免焊接产生的堆焊痕迹,保证产品品质,提高产能。
Forming method of front pipe and lower pipe, pipe assembly, frame and spinning mechanism
前管和下管的成型方法、管组件、车架及旋压机构
26.04.2024
Patent
Elektronische Ressource
Chinesisch
IPC: | B21D WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL , Bearbeiten oder Verarbeiten von Blechen, Metallrohren, -stangen oder -profilen ohne wesentliches Abtragen des Werkstoffs / B62K Fahrräder , CYCLES / B62J Fahrrad- oder Motorradsättel oder -sitze , CYCLE SADDLES OR SEATS / B23P Sonstige Metallbearbeitung , OTHER WORKING OF METAL |
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