Abstract: With the improvement of line flexibility, major automotive original equipment manufacturers are now enhancing the flexible design of line clamping. Based on current body-in-white welding fixtures and their associated control programs, this study utilizes CATIA software to design and verify flexible body-in-white fixtures. By upgrading existing fixtures, it focuses on addressing insufficient accessibility of positioning and clamping mechanisms. The research primarily explores integrated design of telescopic pins and clamping units, as well as linear guide positioning in small-space dihedral configurations. These innovations aim to achieve flexible structures in automotive welding fixtures and production lines, thereby improving welding fixture efficiency and precision, and advancing automation and standardization in automotive manufacturing.

Key words: body-in-white; clamping design; flexible automation; linear guideway

摘要： 随着线体柔性化的提升，各大主机厂现如今都在提升线体夹具柔性设计，文章基于现 今白车身装焊夹具及其配套控制程序，利用 CATIA软件对白车身柔性化夹具进行设计及校核， 在现有夹具的基础上进行柔性化改造，着重解决定位机构、夹紧机构可达性不足问题。文章 主要进行伸缩销及伸缩夹紧单元机构融合设计、小空间二面角形式的直线导轨定位等形式的 问题研究与解决，以实现汽车焊装夹具结构和焊装夹具线体的柔性化，从而提高焊装夹具的 生产效率和精度，提高汽车制造行业的自动化和标准化进程。

关键词: 白车身；夹具设计；柔性自动化；直线导轨