关键词: FAG 轮毂轴承单元；装配工艺；工装设计；效率提升；商用车；优化设计

Abstract: The main role of hub bearing is bearing, and provides accurate guidance for the rotation of the hub, it bears both axial load and radial load. It has an important influence on vehicle stability, lightweight and intelligence.This paper mainly introduces the process improvement scheme and new indenter design of FAG hub bearing unit in hub assembly. Through the analysis of the common hub structure and FAG hub bearing unit structure, on the premise of meeting the existing assembly process of a company, according to the structural characteristics of the indenter tooling optimization design, respectively from the positioning, assembly direction, operation intensity analysis and improvement, design a new bearing indenter. Finally, the assembly quality of wheel hub assembly is improved, the production efficiency is improved, and the labor intensity of workers is reduced. In the future tooling design, we can learn from the lean production design ideas to design tooling.

Key words: FAG hub bearing unit; Assembly process; Tooling design; Efficiency improvement;Commercial vehicles; Optimization design