母线槽参数检测机构运动控制电路设计.rar

摘要
本文根据自动检测母线槽导电片电阻及导电片之间的绝缘强度等技术参数的要求,设计了母线槽参数检测机控制系统(下位机)。本设计采用8031作为CPU,外扩程序存储器和数据存储器;I/O口用8255扩展,用来控制位置检测、压力继电器等信号的输入和异步电机起停、测量头切换等信号的输出;键盘及选择开关用8155扩展,步进电机脉冲信号经过锁存器输出;6位LED静态显示:其中一位16段的“米”字形的LED用于显示字母,其余五位七段LED用于显示数字。
母线槽主要技术参数自动检测时,下位机接受上位机发送的启动信号开始工作,控制检测台的传送装置和气压传动定位机构传送和定位母线槽。接着下位机通过运动机构控制检测系统导电片的电阻与导电片之间的绝缘强度,并显示控制轴的位移量。该控制系统硬件电路经进一步完善,结合控制软件,能够自动控制检测头的移动及检测,而整个控制系统还能自动控制母线槽的传送、定位、贴标、升降以及包装。整个控制系统的自动化程度高,避免了手动检测效率低、安全性差等缺点,在母线槽技术参数自动检测方面有一定的参考应用价值。
关键词:母线槽;检测机构;控制系统;硬件电路
ABSTRACT
According to the requirements of automatically detecting the resistance of conducting plates and the insulation strength between them, this paper advances a design scheme for the control system of bus duct parameter detection machine (subordinate machine), and introduces the design process for the hardware circuit of control system in detail. This hardware circuit selects the singlechip 8031 of MCS-51 series as the CPU. It expands the program memory of 32K and data memory of 4K to storage the monitor program and correlational data, and designs a 6 bit LED static display circuit. Some I/O ports are expanded to control the input of position detection signal, pressure relay signal, etc; and they also control the output of start-up singal and stop signal for the asynchronous motor, switch signal for the detector, etc. At one time, the interface chip 8155 is selected to pilation keyboard and the kind option switch of bus duct. Otherwise, the flip-latch 74LS273 is selected to control the output pulse signal of pros and cons to turn for the 4 step motors.
If this hardware circuit of control system is consummated, and bined with control software, it can automatically control the movement and detection of detector. Moreover, the whole control system can automatically control the transmission, orientation, pasting mark, and package of the bus duct. So, the automation degree of the whole control system is high, and the disadvantages of low efficiency and bad security are avoided. The