基于PLC的三维调整机同步控制系统设计与实现

为了解决目前分段造船模式采用人工肉眼合拢准确率低的现况,提出了三维调整机多机同步控制的思路,设计了基于西门子S7-200 PLC和工业无线以太网的同步控制方案;在同步控制系统方案中,利用PLC对工况数据进行读取和计算,并将计算结果转化为各维度油缸的位移值,同时各油缸内置位移传感器将动作结果反馈给PLC形成闭环控制,从而保证同步控制的精确性;利用工业无线以太网作为数据的传输媒介,在保证数据传输稳定的前提下,操作者可以灵活变化位置;实验中将4台机器组成一个系统,分别对X、Y、Z三个方向的油缸进行同步位移测试,结果显示系统能够准确地进行平移、顶升动作,动作过程中每台三维调整机同方向油缸同步误差满足设计要求,实现了同步控制的效果。

Design and Implementation of Three Dimensional Adjusting Machine Synchronous Control System Based on PLC

In order to solve the present situation of low accuracy of artificial joint closure in segmented shipbuilding mode, put forward a multi machine synchronous control method of three-dimensional adjustment machine, design the synchronization control scheme based on Siemens S7-200 PLC and industrial wireless Ethernet. In the scheme of synchronization control system, read and calculation condition data by using PLC, and the calculation results were transferred into the dimensions of the cylinder displacement value, while the cylinder built-in displacement sensor will be the result of the action of feedback to the PLC closed-loop control, so as to ensure the accuracy of synchronous control. Using industrial wireless Ethernet as the transmission medium of data, the operator can change the position flexibly, which is convenient and practical. In the experiment, a system composed of 4 machines, respectively X, Y, Z of cylinder three directions were tested, the results show that the system can be stably moving, lifting action, the same direction of the cylinder synchronization error of each machine meets design requirements in the action process, achieved synchronous control effect.