主办：陕西省汽车工程学会
ISSN 1671-7988  CN 61-1394/TH
创刊：1976年
汽车实用技术

汽车实用技术 ›› 2026, Vol. 51 ›› Issue (7): 96-101.DOI: 10.16638/j.cnki.1671-7988.2026.007.018

• 工艺·材料 • 上一篇    

一种排气歧管螺母自动拧紧设备设计开发

赖明聪   

  1. 上汽通用五菱汽车股份有限公司
  • 发布日期:2026-04-08
  • 通讯作者: 赖明聪
  • 作者简介:赖明聪（1994－），男，工程师，研究方向为混动专用发动机装配产线自动化

The Design of Engine Exhaust Manifold Nut Automatic Tightening Equipment

LAI Mingcong   

  1. SAIC-GM-Wuling Automobile Company Limited
  • Published:2026-04-08
  • Contact: LAI Mingcong

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摘要： 为解决发动机装配线排气歧管螺母人工拧紧效率低、扭矩一致性差的痛点，文章开发 了集成伺服变距机构、顶升机构与位置检测机构的全自动拧紧设备。通过六轴机器人驱动双 拧紧轴协同作业，实现排气歧管螺母的高精度定位与同步拧紧，单工位节拍为 39 s。从根本 上提升发动机装配产线的自动化率并消除人工操作波动性，为同类型紧固工艺的自动化升级 提供可复用的技术路径。

关键词: 发动机装配；排气歧管螺母；自动拧紧

Abstract: In order to resolve the pain points of low efficiency and inconsistent torque in manual tightening of exhaust manifold nuts on engine assembly lines, this paper develops a fully automated tightening device integrated with a servo pitch-adjustable mechanism, a jacking mechanism, and a laser-based positioning system. By deploying a six-axis robot to drive dual tightening shafts for collaborative operation, high-precision positioning and synchronous tightening of the nuts are achieved, with a cycle time of 39 s per workstation. This solution fundamentally enhances the automation rate of engine assembly lines and eliminates operator-induced variations, providing a replicable technical pathway for automating similar fastening processes.

Key words: engine assembly; exhaust manifold nut; automatic tightening