摘要
针对精加工刀具刃磨过程所需工具磨床摆轴回转运动的高精度要求,设计了新型的高精度工具磨床摆轴及其控制系统。首先,根据已设计的摆轴机械结构建立系统数学模型;其次,为了满足工程中不同刃磨需求下摆轴回转运动的平稳性要求,解决常规PI控制无法实现此类时变系统回转速度精准控制的问题,引入了模糊控制策略对PI控制参数进行整定;最后,通过MATLAB/Simulink模块对摆轴系统进行了仿真验证。结果表明,采用模糊PI控制的摆轴系统速度跟随效果好,超调量低于1%,且具有良好的鲁棒性,能满足工程中对高精度工具磨床摆轴运动控制精度的要求。
To address the high-precision requirements for the rotation motion of tool grinder pendulum shaft during precision tool grinding processes,a novel high-precision tool grinder pendulum shaft and its control system were designed.Firstly,a systematic mathematical model was established based on the designed mechanical structure of the pendulum shaft.Secondly,to meet the requirement of stable rotation for different grinding requirements in the project and solve the problem that conventional PI control cannot achieve precise speed control of such time-varying systems,a fuzzy control strategy was introduced to adjust the PI control parameters.Finally,the pendulum shaft system was simulated and verified using MATLAB/Simulink modules.The results showed that the pendulum shaft system with fuzzy PI control has good speed tracking performance,with an overshoot of less than 1%,and good robustness,which can meet the requirements for high-precision tool grinder pendulum shaft motion control accuracy in engineering applications.
作者
王柏何
董海
王峥
WANG Baihe;DONG Hai;WANG Zheng(State Key Laboratory of High-Performance Precision Manufacturing,Dalian University of Technology,Dalian 116081,China)
出处
《组合机床与自动化加工技术》
北大核心
2024年第7期23-25,30,共4页
Modular Machine Tool & Automatic Manufacturing Technique
关键词
工具磨床摆轴
研磨质量
运动控制
模糊控制
tool grinder pendulum shaft
grinding quality
motion control
fuzzy control
