凹印版辊缺陷检测设备伺服控制系统研究
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摘要
凹印版辊缺陷检测设备是服务于印刷制版企业的智能检测设备,涉及图像处理、智能控制、机械制造等多方面技术,解决了印刷制版企业的刚性需求,具有良好的发展前景。高精度的检测标准对控制系统提出了较高的要求,然而伺服系统往往存在非线性和不确定因素,其工作过程中参数是时变的,且经常存在非线性扰动。为了满足缺陷检测设备高精度、高稳定性的控制要求,本研究设计并实现了一种基于CAN总线控制的多轴伺服控制系统,主控单元通过CAN总线与系统中的各驱动单元进行通信,配合PLC控制模块,实现对各个运动单元的控制。模块化控制的方法不仅有效地阻隔了故障蔓延,而且使得控制结构更加清晰,触摸屏作为上位机向各驱动模块发送控制指令,保障良好的人机交互。基于此,设计并制作样机,在样机上对几个关键参数进行了对比测试。实验结果表明,多轴伺服控制系统稳定性好,控制精度高且结构清晰,方便使用,能够较好地配合图像采集元件实现高精度检测,为同类产品的设计提供了参考。
Gravure plate roller defect detection equipment is an intelligent detection device for printing plate-making enterprises.It involves many aspects such as image processing,intelligent control,and mechanical manufacturing,which solves the rigid demand of plate-making enterprises and has a good development prospect.High-precision testing standards raise a high demand on the control system,but there are nonlinear and uncertain factors in the servo system.The parameters in the working process are time-varying and there are nonlinear disturbances.In order to get high-precision,high-stability control of the defect detection equipment,a multi-axis servo control system based on CAN bus control was designed and implemented in this study.The main control unit communicated with each drive unit in the system via the CAN bus,and cooperated with PLC control module to achieve control of individual motion units.The modular control method did not only effectively block the spread of faults,but also made the control structure clearer.The touch screen was used as a host computer to send control commands to each drive module to ensure good human-computer interaction.A prototype was designed and made to do split testing with several key parameters.The experimental results showed that the multi-axis servo control system has the advantage of good stability,high control precision,clear structure and convenient use.It can better cooperate the image acquisition components to achieve high-precision detection and provide reference for the design of similar products.
Gravure plate roller defect detection equipment is an intelligent detection device for printing plate-making enterprises.It involves many aspects such as image processing,intelligent control,and mechanical manufacturing,which solves the rigid demand of plate-making enterprises and has a good development prospect.High-precision testing standards raise a high demand on the control system,but there are nonlinear and uncertain factors in the servo system.The parameters in the working process are time-varying and there are nonlinear disturbances.In order to get high-precision,high-stability control of the defect detection equipment,a multi-axis servo control system based on CAN bus control was designed and implemented in this study.The main control unit communicated with each drive unit in the system via the CAN bus,and cooperated with PLC control module to achieve control of individual motion units.The modular control method did not only effectively block the spread of faults,but also made the control structure clearer.The touch screen was used as a host computer to send control commands to each drive module to ensure good human-computer interaction.A prototype was designed and made to do split testing with several key parameters.The experimental results showed that the multi-axis servo control system has the advantage of good stability,high control precision,clear structure and convenient use.It can better cooperate the image acquisition components to achieve high-precision detection and provide reference for the design of similar products.
引文
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[2]李志嘉.基于现场总线的多轴伺服系统及其应用研究[D].杭州:中国计量学院,2015.LI Zhi-jia.Application of Multi-axis Servo System Based on Fieldbus[D].Hangzhou China Jiliang University,2015.
[3]姜永成,任福君.基于多轴运动控制器的电极丝恒张力控制系统[J].中国机械工程,2008,19(16):1920-1924.JIANG Yong-cheng,Ren Fu-jun.Constant Tension Control System of Wire Tool in WEDM--HS Based on PMAC[J].China Mechanical Engineering,2008,19(16):1920-1924.
[4]贾丙西,刘山,张凯祥,等.机器人视觉伺服研究进展:视觉系统与控制策略[J].自动化学报,2015,41(5):861-873.JIA Bing-xi,LIU Shan,ZHANG Kai-xiang,et al.Survey on Robot Visual Servo Control:Vision System and Control Strategies[J].ActaAutomaticaSinica,2015,41(5):861-873.
[5]陈华伟,吴禄慎,袁小翠.基于同步标记算法的钢轨表面缺陷检测[J].计算机工程与设计,2016,37(1):127-131.CHEN Hua-wei,WU Lu-shen,YUAN Xiao-cui.Rail Surface Defect Defect Detection Based on Synchronized Labeling Algorithm[J].Computer Engineering and Design,2016,37(1):127-131.
[6]吉红,夏春茂,王凤桐.基于PLC的伺服电机位置控制系统研究[J].科技经济导刊,2016,20(15):150-155.JI Hong,XIA Chun-mao,WANG Feng-tong.Study on Servo Motor Position Control System Based on PLC[J].Technology and Economic Guide,2016,20(15):150-155.