基于PMAC的工业CT多轴定位系统设计
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摘要
针对现有工业CT无法进行快速扫描和自动进样这一状况,设计了一套基于PMAC的多轴定位控制系统,可以自动进行样品更换,无需人工打开防护箱体的箱门更换。本系统控制部分采用PMAC12轴控制卡+32位IO扩展板,运动部分采用台达伺服驱动器及同步交流伺服电机,并且采用基于MODBUS协议的自动夹爪。通过对PMAC控制卡的PID参数调节,达到对伺服电机、步进电机以及自动夹爪的精准定位,使其满足整套工业CT的高精度无损检测要求。
In view of the current situation that the existing industrial CT cannot perform rapid scanning and automatic sample injection, a set of multi-axis positioning control system based on PMAC is designed, sample replacement can be done automatically which can be carried out automatically when the sample is replaced without manually opening the door of the protective box for replacement. The control part of this system adopts PMAC 12-axis control card +32-bit IO extension board, the motion part adopts ASDA servo driver and synchronous ac servo motor, and adopts automatic gripper based on MODBUS protocol.By adjusting PID parameters of PMAC control card, precise positioning of servo motor, stepper motor and automatic gripper can be achieved, so that it can meet the requirements of high-precision nondestructive testing of the whole set of industrial CT.
In view of the current situation that the existing industrial CT cannot perform rapid scanning and automatic sample injection, a set of multi-axis positioning control system based on PMAC is designed, sample replacement can be done automatically which can be carried out automatically when the sample is replaced without manually opening the door of the protective box for replacement. The control part of this system adopts PMAC 12-axis control card +32-bit IO extension board, the motion part adopts ASDA servo driver and synchronous ac servo motor, and adopts automatic gripper based on MODBUS protocol.By adjusting PID parameters of PMAC control card, precise positioning of servo motor, stepper motor and automatic gripper can be achieved, so that it can meet the requirements of high-precision nondestructive testing of the whole set of industrial CT.
引文
[1] 郭智敏,倪培君.CT系统空间分辨率测试方法研究进展[J].兵器材料学与工程,2010,32(2):113-117.
[2] 张朝宗,张朋,郭志平,等.工业CT技术和原理[M].北京:科学出版社,2009.
[3] 须颖,邹晶,姚淑艳.X射线三维显微镜及其典型应用[J].CT理论与应用研究,2014,23(6):967-977.
[4] 杨上陆.基于PMAC和松下伺服电机的电子横移控制系统研究[J].机床与液压,2004(11):73-76.
[2] 张朝宗,张朋,郭志平,等.工业CT技术和原理[M].北京:科学出版社,2009.
[3] 须颖,邹晶,姚淑艳.X射线三维显微镜及其典型应用[J].CT理论与应用研究,2014,23(6):967-977.
[4] 杨上陆.基于PMAC和松下伺服电机的电子横移控制系统研究[J].机床与液压,2004(11):73-76.