Abstract: With the continuous introduction of new energy vehicles by vehicle manufacturers, the structural differences in the bottom of the body-in-white between new energy vehicles and traditional fuel vehicles, as well as the increased weight of the new energy body-in-white, pose significant challenges to the load capacity and co-line compatibility of the body-in-white transfer systems and their accompanying fixtures in the welding workshop. This article introduces a multi-platform lightweight and flexible accompanying fixture transmission system suitable for the co-line production of new energy and traditional fuel vehicle body-in-white architectures. This system innovatively incorporates new materials, new processes, and new equipment technologies, achieving a weight reduction of 250 kg for the accompanying fixtures and ensuring that the total load does not exceed the rated load of 1 500 kg for high-speed roller beds after the introduction of new energy vehicles. It realizes the lightweight, flexible, and standardized accompanying fixtures. This further achieves the lean integration of the manufacturing lines for new energy and traditional vehicle body-in-white, providing a reference for the common manufacturing challenges faced by the body-in-white welding workshops of various vehicle manufacturers due to the introduction of new energy vehicle models.

Key words: new energy; multi-platform; accompanying fixture; lightweight

摘要： 随着整车厂不断引入新能源汽车，新能源车和传统燃油车在白车身底部的架构差异， 以及新能源白车身的质量增加，对焊装车间车身随行工装及其输送系统的负载能力与共线兼 容性带来巨大挑战。文章介绍了适用于新能源车身架构与传统燃油车身架构共线下的多平台 轻量化柔性随行工装传输系统，该系统创新性地引入新材料、新工艺、新设备等技术，完成 随行工装减重 250 kg，控制新能源车引入后总载荷不超过高速滚床额定载荷 1 500 kg，实现 随行工装的轻量化、柔性化和标准化。进一步达到新能源车和传统车白车身制造生产线的精 益融合，对各整车厂白车身焊装车间因新能源车型引入而普遍存在的制造难题具有借鉴意义。

关键词: 新能源；多平台；随行工装；轻量化