数控机床控制系统设计摘要可编程控制器(PLC)广泛用于工业控制,如数控机床。 数控机床的控制部分可分为数字控制和顺序控制两部分。本文介绍了数控机床的基本组成,工作原理,分类和各自的特点。 并对数控机床中的 PLC 进行了详细的介绍,并对数控机床上的 PLC 控制进行了设计。 然后以 Z3040 摇臂钻机为例说明其设计过程,包括控制系统电路分析和 Z3040 摇臂钻机原理图。 PLC 用于对机床进行编程。关键词:可编程控制器 数控机床 数字控制 顺序控制 AbstractProgrammable controllers (PLCs) are widely used in industrial control such as CNC machine tools. The control part of CNC machine tools can be divided into two parts: digital control and sequential control.1This article describes the basic composition, working principle, classification and respective characteristics of CNC machine tools. And made a detailed introduction to the PLC in the CNC machine tool and designed the PLC control on the CNC machine tool. Then the Z3040 radial drilling machine is taken as an example to describe its design process, including the analysis of the control system circuit. The Z3040 radial drilling machine schematic diagram is used to control the machine tool using a PLC programming program.Keywords: programmable controller numerical control machine digital control sequential control目录1 引言..............................................................................................................................................42 PLC 的概述....................................................................................................................................42.1 PLC 的基本特点................................................................................................................42.1.1 高可靠性................................................................................................................42.1.2 采用模块化结构.............................