关键词: 特殊套筒；汽车紧固；质量控制；故障诊断；开口套筒

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