S7-300PLC在巨型模锻液压机驱动同步控制系统中的应用  

S7-300PLC using in the hydraulic press synchronous control system

作　　者：刘新良[1] 黄明辉[1] 湛利华[1] 赵啸林[1] 

机构地区：[1]中南大学机电学院,长沙410083

出　　处：《现代制造工程》2010年第5期119-122,150,共5页Modern Manufacturing Engineering

基　　金：国家973重点基础研究发展计划项目(2005CB724102)

摘　　要：巨型模锻液压机工作时,活动横梁的水平度是保证加工工件精度的决定性因素。设计一种基于西门子S7-300PLC可编程控制器为工作总站的驱动同步系统控制方案,实现对活动横梁的水平控制,并对控制系统的控制原理、硬件组成和软件体系做详细的分析和介绍。系统工作总站根据四个高精度光栅尺实时地检测活动横梁四角的位移和各主工作缸压力传感器及流量传感器等反馈信号,分别采用PID控制策略控制各主工作缸进液阀组的流量和压力,实现主工作缸的主动同步运动。Giant forging hydraulic press working,the activities of the beams is to ensure that the level of degree of precision decisive factor.A design based on Siemens S7-300PLC terminus for the work of the giant forging hydraulic press control-driven synchronous system,achieving the level of beam control,control system and control theory,hardware,software system has done a detailed analysis and presentation.System terminal based on the four high-precision measurement of linear grating sensors in real time to the activities of the displacements and beam corners of the work of the master cylinder pressure sensor and flow sensor,such as feedback signal,namely the use of PID control strategy to control the work of the master cylinder into the hydraulic valve flow and pressure groups to achieve the main working cylinder synchronous movement of the initiative.

关 键 词：液压机 活动横梁 驱动同步控制 S7-300PLC可编程控制器 

分 类 号：TG315.4[金属学及工艺—金属压力加工]