数字化脉冲MIG焊机送丝系统  

Wire Feeding System of Digital Welding Machine for P-MIG

作　　者：陈克选[1] 朱艳红[1] 李春旭[1] 宋诚[1] 

机构地区：[1]兰州理工大学有色金属合金省部共建教育部重点实验室,甘肃兰州730050

出　　处：《机械与电子》2007年第3期37-39,共3页Machinery & Electronics

摘　　要：采用数字化控制技术对送丝电机进行控制,以80C196KC为控制核心,设计了脉宽调制型调速系统。电机转向通过单片机输出信号来控制,使其具有极大的灵活性。采用光电编码器进行送丝速度反馈,利用相应的控制算法使实际送丝速度值与预置值趋于一致,从而改善其稳定性,保证焊接质量。送丝系统的数字化可实现与数字化焊接电源的接口。设计了MOSFET的驱动及保护电路,并对电机进行了限流保护。Using digital control technology controls the wire feeding motor. High performance 16 -bit micro ＂ processor 80C196KC is adopted for control kernel. The feeding system takes PWM principle, which uses DC- actuating motor. The micro - processor outputs signal which control directions of motor. The optical coder used feedbacks the wire feed rate. Corresponding control algorithm adopted for actual speed is close to that of given, which improves the stability and welding quality. The wire feeding system realizes interface with the digital welding source. Drive and protection circuits for MOSFET are designed. And current limiter method is used for motor.

关 键 词：数字化送丝机 80C196KC 驱动电路 速度反馈 

分 类 号：TM33[电气工程—电机]