基于步进电机的机床进给系统运动控制研究  

Research of Machine Tool Feed System Control Based on Step Motor

作　　者：孙正鼐[1] 李婷[1] 张虹[1] 

机构地区：[1]哈尔滨工业大学(威海)信息科学与工程学院,山东威海264209

出　　处：《机床与液压》2009年第5期102-104,10,共4页Machine Tool & Hydraulics

摘　　要：为了以最短的时间使步进电机加速到最高运行频率,在转矩最大处升到高一级频率,以获得最大加速度,提出了基于光栅尺信号反馈的闭环控制方法。使用结果表明:换相时刻由增量式光栅尺的反馈信号决定,避免了复杂的计算,提高了系统的灵活性;硬件采用微处理器控制一片运动控制芯片的方式,使控制电路简单,可扩展性好,可广泛应用于机床的数控化改造中。In order to speed up the step motor with the shortest time, do it in the point where the torque is largest and attain the biggest acceleration, the elosed loop control method based on feedbaek signal of optieal grating was put forward. For this method, the changing time is decided by the feedback signal of optical grating, whieh avoids the complex calculation and adds the flexibility of the system. To use microcomputer to eontrol a motion eontrol chip, the control cireuit of the system is simple, the system has good expansibility, which can be applied in machine tool NC transformation.

关 键 词：步进电机 运动控制 光栅信号 数控化改造 

分 类 号：TG659[金属学及工艺—金属切削加工及机床]