数控龙门移动式镗铣床控制系统的研究.docVIP

摘 要 CNC(Computer number control数控机床)是计算机数字控制机床的简称，是一种装有程序控制系统的自动化机床。该控制系统能够处理具有控制编码或符号指令规定的程序，并将其译码，从而使机床动作并加工零件能够实现自动铣削、钻孔、镗孔、铰孔、攻丝等多工序的数控机床它具有根据工艺要求自动更换所需刀具的功能ABSTRACT CNC is the abbreviation for the computer number control，it is a kind of automatic machine tool controlled by the programmable components. The programmable component can run various computer languages and codes and instruct the machine tool to manufacture module. Number control milling machine can automatically perform the fuctions of milling, boring a hole, internal boring, reaming, taping and so on. It also can automatically change the cutting tool according to the different requirements . The treatise mainly introduces the way how to design the mechanical structure, electrical control and programmable components. After the design, we can make boring-milling machine work well. The system is integrated into the NC device interface to the shaft, spindle interface, handheld unit interface, embedded PLC interface, remote I/O interface board in, and it support hard drives, disk and other electronic storage methods and procedures Floppy drive, DNC, Ethernet and other functions of the exchange program, a high-performance, flexible configuration, compact and easy to use, it has high reliability. It is given master / control circuit diagram and some components how to choose. Keywords：programmable component；programmable logic controller；master / control loop；milling machine 目 录 1 绪论 1 1.1 本论文的选题及意义 1 1.1.1 数控系统的发展和现状 1 1.1.2 我国数控机床的现状 2 1.2 数控机床的特点和用途 3 1.3 PLC技术简介 4 1.3.1 PLC的基本结构 4 1.3.2 PLC应用领域 5 2 数控龙门移动式镗铣床控制系统设计 6 2.1 系统简介 6 2.1.1 总体框图 7 2.1.2 输入输出开关量的定义 7 2.1.3 电气原理图 10 2.1.4 继电器的输入输出开关量 11 2.1.5 主轴单元接线图 13 2.1.6 伺服驱动器接线图 13 2.2 数控装置 14 2.3 软驱单元 16 2.4 手持单元 16 2.5 I/O端子板 17 2.6 远程I/O端子板 18 2.7 电源 19 2.7.1 供电要求 19 2.8 数控装置的连接 21 2.8.1 数控装置与软驱单元的连接 21 2.8.2 数控装置与外部计算机的连接 22 2.8.3 数控装置开关量的输入/输出 24 2.8.4 数控装置与手持单元的连接 35 2.8.5 数控装置与主轴装置的连接 37 2.8.6 数控装置与进给驱动装置的连接 40 2.9 急停与超