Abstract: The automotive manufacturing industry serves as a vital pillar of the national economy, where the quality of fastener assembly in vehicle final assembly directly impacts the performance, safety, and reliability of complete vehicles. With advancements in automotive technology, the variety and complexity of fasteners have significantly increased, demanding higher standards for assembly tools. Taking final assembly workshops as a case study, this article explores the practical applications of special sleeves in automotive fastener assembly. It systematically analyzes their profound influence across multiple dimensions, including assembly quality, production efficiency, operational safety, cost control, and technological development. The results indicate that specialized sockets can effectively fulfill specific tightening process requirements; however, the precision and reliability are strictly contingent upon standardized operating procedures, routine maintenance, and metrological calibration. Through empirical case analyses, this paper provides a practical engineering reference for the application management and quality control of specialized sockets within the automotive fastening process.

Key words: specialized socket; automotive fastening; quality control; fault diagnosis; crowfoot socket

摘要： 汽车制造业是国民经济的重要支柱，其中，汽车总装环节的紧固件装配质量直接关系 到整车的性能、安全性与可靠性。随着汽车技术的发展，紧固件的种类和复杂性日益增加， 对装配工具提出了更高要求。文章以总装车间为例，深入探讨特殊套筒在汽车紧固件装配中的 具体应用，并从装配质量、生产效率、操作安全、成本控制及技术发展等多个维度对其产生的 深远影响进行系统分析。研究表明，特殊套筒能够满足特定拧紧工艺要求，但其精度及可靠 性取决于标准化的操作流程、维护保养及计量校准。文章通过实例分析为汽车总装拧紧过程 中特殊套筒的应用管理及质量控制提供了工程实践参考。

关键词: 特殊套筒；汽车紧固；质量控制；故障诊断；开口套筒