The invention discloses a front door ring structure, a side wall assembly and a vehicle, and the front door ring structure comprises a B column lower section, a B column upper section, a side wall upper edge beam, an A column upper section, an A column lower section and a doorsill beam which are encircled to form a front door opening frame, and the B column lower section, the B column upper section and the side wall upper edge beam are sequentially overlapped to form a first welding assembly; the lower end part of the B-pillar lower section of the first welding assembly is fixedly lapped with the rear part of the doorsill beam, the front end part of the side wall roof side rail of the first welding assembly is fixedly lapped with the rear end part of the A-pillar upper section, the front end part of the A-pillar upper section is fixedly lapped with the upper end part of the A-pillar lower section, and the lower end part of the A-pillar lower section is fixedly lapped with the front part of the doorsill beam; the B-pillar lower section is a soft area, the B-pillar upper section, the side wall roof side rail, the A-pillar upper section, the A-pillar lower section and the doorsill beam are hard areas, and the mechanical property of the soft area is lower than that of the hard areas. The problems that a hot-formed steel splice plate tool is high in equipment requirement and high in manufacturing cost are solved, and the requirement for high performance is met by optimizing the part structure and the connection mode of the lap joint area.
本发明公开了一种前门环结构、侧围总成及车辆,包括合围形成前门洞框架的B柱下段、B柱上段、侧围上边梁、A柱上段、A柱下段和门槛梁,B柱下段、B柱上段、侧围上边梁依次搭接构成第一焊接总成,第一焊接总成的B柱下段的下端部与门槛梁后部搭接固定,第一焊接总成的侧围上边梁前端部与A柱上段后端部搭接固定,A柱上段前端部与A柱下段的上端部搭接固定,A柱下段的下端部与门槛梁前部搭接固定;B柱下段为软区,B柱上段、侧围上边梁、A柱上段、A柱下段和门槛梁为硬区,软区力学性能低于硬区力学性能。其既解决了采用热成型钢拼接板工装设备要求高、造价昂贵的问题,又通过优化零部件结构和搭接区域的连接形式保证高性能要求。
Front door ring structure, side wall assembly and vehicle
一种前门环结构、侧围总成及车辆
2022-09-16
Patent
Electronic Resource
Chinese
IPC: | B62D MOTOR VEHICLES , Motorfahrzeuge |
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