PLC雕刻机机床控制系统设计+接线图+流程图
关键词：雕刻机；步进系统；滚珠丝杠；PLC
A Design of PLC based Engraving Machine
Control System
Abstract: Engraving is a kind of combined machining method. Based upon the requirement, digital controlled engraving machine can implement the performance of engraving, its automatic and user friendly operating mode enhances the productivity and improves flexibility and quality as well. With the development of tools and technology engraving application has been more and more used from industrial production to people’s daily life. The paper describes the control and drive method of an engraving machine, designs a PLC based electrical control diagram of 3D engraving machine, and writes the control program for trajectory move. Roll-Ball lead screw design, 3D engraving machine has stepping control system in X, Y, Z axis, the position control on those three axis is realized through high speed CPU pulse output PTO and positioning module EM253. Main axis is driven by AC inverter and the system has limit switch and position sensor for overrun protection. The test result shows that the system can perform the engraving trajectory control with expected accuracy and meet the design criteria.
Key Words: Engraving Machine, Stepping Control System, Roll-Ball Lead Screw
Design, PLC
目录
1绪论 1
1.1 课题背景 1
1.2 雕刻机及其应用 1
1.2.1 分类及应用 2
1.2.2 数控雕刻系统 2
1.3 课题研究的主要内容 3
1.3.1 KNT-PHT3运动系统介绍 3
1.3.2 课题研究的主要内容 4
2方案论证 5
2.1 驱动方案选择 5
2.1.1主轴的驱动方式 5
2.1.2 X、Y、Z轴的驱动方式 5
2.1.3 伺服电机与步进电机比较 6
2.2 控制方案选择 7
2.2.1 DSP控制 7
2.2.2 电路板控制 7
2.2.3 数控系统嵌入计算机控制 8
2.2.4 PLC控制 8
2.3 步进电机 8
2.3.1 步进电机的分类及其控制方式 8
2.3.2 PLC在步进电机控制中的应用 9
2.4 传感器选择 10
3硬件电路设计 11
3.1 主电路设计 11
3.1.1 电源部分设计 11
3.1.2 步进电机及驱动器电气线路设计 13
3.2 PLC外部电路设计 16
3.2.1 PLC的选型 16
3.2.2 PLC高速脉冲发生器（PTO） 16
3.2.3 EM253位控模块 17
3.2.4 PLC的I/O分配 18
3.2.5 PLC外部电气接线图 19
4程序设计及调试 22