电动冲击扳手定扭矩控制方法研究*

doi:10.16731/j.cnki.1671-3133.2024.07.019

现代制造工程 ›› 2024, Vol. 526 ›› Issue (7): 152-159.doi: 10.16731/j.cnki.1671-3133.2024.07.019

• 设备设计/诊断维修/再制造 • 上一篇

电动冲击扳手定扭矩控制方法研究^*

刘星辰, 谢峰, 汪小武, 吴欢乐

安徽大学电气工程及其自动化学院,合肥 230000

收稿日期:2023-10-13 出版日期:2024-07-18 发布日期:2024-07-30
通讯作者: 谢峰,教授,博士研究生导师,研究领域为机电一体化设计、先进制造技术及切削理论。E-mail:Jeexf199@163.com
作者简介:刘星辰,硕士研究生,研究方向为MES技术在5G物联支持下的发展应用。E-mail:2450461886@qq.com。汪小武,副教授,研究方向为工业控制、嵌入式系统开发与研究。吴欢乐,硕士研究生,研究方向为嵌入式开发。
基金资助:
*国家自然科学基金项目(51975003);安徽省科技攻关重大专项资助项目(201903a05020039)

Research on constant torque control method for electric impact wrench

LIU Xingchen, XIE Feng, WANG Xiaowu, WU Huanle

College of Electrical Engineering and Automation,Anhui University,Hefei 230000,China

Received:2023-10-13 Online:2024-07-18 Published:2024-07-30

摘要/Abstract

摘要： 研究了电动冲击扳手定扭矩控制的问题。首先建立了电动冲击扳手碰撞模型和扭矩累积模型,分析了影响扳手扭矩输出的因素,提出了一种基于冲击次数和冲击块转速的定扭矩控制方案,同时设计了冲击次数采集方案和基于模糊PID的双闭环直流无刷电机的转速控制方案。在搭建的电动冲击扳手扭矩测试平台上进行验证,结果表明,在冲击次数为200时,扳手的定扭矩控制精度可达到±4 %以内。该定扭矩控制方法具有控制精度高、成本低及操作方便等特点。通过实际应用验证了该方法的可行性。

关键词: 电动冲击扳手, 扭矩累积模型, 定扭矩控制, 螺栓拧紧

Abstract: The constant torque control of electric impact wrench was studied.Firstly,the collision model and torque accumulation model of electric impact wrench were established,and the factors affecting the torque output of wrench were analyzed. A constant torque control scheme based on impact times and impact block speed was proposed. At the same time,the collection scheme of impact times and the speed control scheme of double closed-loop DC brushless motor based on fuzzy PID were designed.Verified on the torque test platform of electric impact wrench,the results show that the torque control accuracy of the wrench can reach within ±4 % when the impact times are 200 times. The constant torque control method has the characteristics of high control accuracy,low cost and convenient operation. The feasibility of this method was verified by practical application.

Key words: electric impact wrench, constant torque accumulation model, torque control, bolt tightening

中图分类号:

TP393

刘星辰, 谢峰, 汪小武, 吴欢乐. 电动冲击扳手定扭矩控制方法研究^*[J]. 现代制造工程, 2024, 526(7): 152-159.

LIU Xingchen, XIE Feng, WANG Xiaowu, WU Huanle. Research on constant torque control method for electric impact wrench[J]. Modern Manufacturing Engineering, 2024, 526(7): 152-159.

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电动冲击扳手定扭矩控制方法研究^*

Research on constant torque control method for electric impact wrench

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