微细电火花线切割加工伺服运动控制卡设计及实现  

Design micro-WEDM Servo Feed Control Card and Its Realization

作　　者：黄瑞宁[1] 李荣先[1] 杜如虚[1] 狄士春[1] 

机构地区：[1]深圳清华大学研究院,广东深圳518057

出　　处：《电加工与模具》2009年第1期51-54,共4页Electromachining & Mould

摘　　要：设计了一套精密伺服运动控制卡,该卡利用DSP作为控制系统的核心,采用了不完全微分PID控制器,并针对压电陶瓷电机低速运动时具有不固定死区特性,进行了自适应死区逆补偿,以实现对压电陶瓷电机进行精确控制。实验结果表明,此伺服运动控制卡能满足微细电火花线切割加工的伺服控制要求。A precision servo feed control card for micro-WEDM （micro wire electrical discharge machining） is designed. The servo feed control card based on DSP microprocessor applies PID controller with incomplete derivation to reduce overshoot to improve machining accuracy, and also adopts adaptive dead-zone inverse compensation to eliminate dead-zone caused by piezoelectric ceramics motions in low servo feed speed. The result of experiment shows that the servo feed control card satisfies the need of micro-WEDM for high precision micro fabrication.

关 键 词：微细电火花线切割加工 伺服运动控制 不完全微分PID控制器 

分 类 号：TG661[金属学及工艺—金属切削加工及机床]