1、 毕业设计论文毕业设计论文 课题名称课题名称 C650C650 卧式车床的控制系统的卧式车床的控制系统的 PLCPLC 控制改造控制改造 I C650 卧式车床的控制系统的 PLC 控制改造 摘 要 更新改造旧机床是最近几年发展起来的一个新兴产业， 该设计是对C650卧式车床 的控制系统的PLC控制改造的研究设计。 采用连线少、体积小、功耗小、控制速度快、可靠性高、功能完善的PLC控制系统， 来代替电气控制系统中继电器控制逻辑，配以合适的数控系统，可使机床控制功能更 加丰富，自动化水平大大提高。 此次设计从被控对象的I/O点数和性价比高、综合成本低这几个主要原则出发，主要 进行了控制装置选型，
2、 PLC的地址分配和用梯形图编辑的PLC控制程序设计。 改造后的机床在实现机床原有功能的基础上还增加了自动加工、 自动换刀等多种 功能。 关键词：数控改造；继电器；PLC；梯形图 Research and Design for C650 horizontal type lathe Reconstruction on PLC Control ABSTRACT Retrofitting obsolete old machine tools is an industry developed in the recent years, this design makes a reconstruction
3、 towards Research and Design for C650 horizontal type lathe Reconstruction on PLC Control My purpose is to use the state of PLC memorizer unit to replace the relay mechanical touch in series or parallel connection in electric control system, Systems controlled by PLC have few line connected and smal
4、l cubage, little power cost and high control speed as well as precision, and that PLC have count function, which the electric control system dont have commonly. This design on the principle of the number of I/O spot in object controlled and high performance to price ratio and low comprehensive cost. PLCs address distribution and PLC control edited by ladder diagram is mainly designed. On the basis of carrying out machine tools intrinsic functions, other functions such as automatic machin
