摘要
针对齿轮重复加工中由于误差引起齿轮轮廓精度难以保证的问题,对影响齿轮重复加工的跟踪误差、耦合误差等因素进行了研究。结合齿轮重复加工的应用需求,对耦合误差的构成和耦合误差对轮廓精度的决定性影响,及相关误差补偿方法进行了分析,提出了通过实时相位误差反馈来对耦合误差进行实时补偿的齿轮加工控制系统模型;开发了一种新的相位误差动态闭环补偿技术;利用齿轮加工系统试验平台,对相位误差动态补偿技术的有效性进行了测试;通过MATLAB数据仿真和实际工件切削,对采用相位误差补偿技术前后的相位误差变化进行了比较与分析。研究结果表明:该相位误差动态闭环补偿技术能有效地减少耦合联动轴的相位误差,相位误差下降达99%,明显提高了齿轮重复加工的精度;同时,该技术满足实时性要求,适合实际工程的应用。
Aiming at the problem that the precision of gear outline is difficult to guarantee due to error in repeated gear processing,the influence factors of tracking error and coupling error on gear repeated machining were researched.Combining with the application requirements of gear repeated machining,the composition of coupling error,the decisive influence of coupling error on contour accuracy and the compensation method of correlation error were summarized.A model of gear machining control system was proposed to compensate compling error by real-time phase error feedbook,and a new dynamic closed-loop compensation technology of phase error was developed.The validity of the dynamic compensation technology of phase error was tested by using the test platform of gear processing system,MATLAB was used for data simulation,experiments were carried out,the phase error changes before and after phase error compensation were compared.The results indicate that the dynamic closed-loop compensation technology of the phase error can effectively reduce the phase error of the coupling linkage shaft,the phase error is reduced by 99%,the accuracy of repeated machining of gears is obviously improved.At the same time,the technology meets the real-time requirements,and it is suitable for engineering application.
作者
何英武
梅江平
陈光锋
HE Ying-wu;MEI Jiang-ping;CHEN Guang-feng(School of Mechanical Engineering,Tianjin University,Tianjin 300354,China;Guangzhou CNC Equipment Co.,Ltd.,Guangzhou 510535,China)
出处
《机电工程》
CAS
北大核心
2021年第1期93-97,共5页
Journal of Mechanical & Electrical Engineering
基金
国家重点研发计划资助项目(2017YFB1300800)。
