基于PLC的起重机主梁加工设备控制系统设计

针对起重机主梁的生产特点与加工方式，开发了一套基于可编程逻辑控制器(programmable logic controller,PLC)的起重机主梁加工设备控制系统。重点介绍了起重机主梁加工设备控制系统的硬件组成和控制系统软件设计以及加工流程，并根据工作流程进行各控制部分PLC程序编写。设计的起重机主梁加工系统实现了自动化生产，且可一次加工长度为6 m的单段起重机主梁，工作效率大为提高。验证结果表明，该系统性能稳定，可靠性高，具有工程实用价值。

Design of a control system for the crane-main-beam processing equipment based on PLC

Aiming at the production characteristics and processing mode of crane main beam, a control system of crane main beam processing equipment based on PLC(programmable logic controller) was developed. The hardware composition and software design of the control system and the processing flow of the crane main beam processing equipment were introduced, and the PLC program of each control part was compiled according to the mechanic flow. The designed processing system realizes the automatic production of crane main beam, and it can process a single-section crane girder with a length of 6 m at one time, work efficiency was improved greatly. The practice shows that the system works stably, has high reliability and has practical value in engineering.