基于PLC的全自动气动钻床毕业设计（可编辑）.doc

基于PLC的全自动气动钻床毕业设计 Summary As a popular industrial automation technology, the pneumatic drive is easy to spread with advantage easy access to the gas sourse,low environmental pollution,high working speed, high movement frequency and high engineering feasibility. Because PLC is a automation and control products with high function, simple programming and high reliability .Both of them have been widely used in industrial production. It is based on the above considerations,here I am to disign a fully automatic pneumatic drilling machine that based on PLC which can quickly locate,clamp and drill on the the workpiece in order to improve the production efficiency and the degree of automation. This paper is mainly to design and improve the institution of traditional machine tools and control systems through general application of machine tool designing. The main content of the design is ordinary desktop drill transmission system improvement, feeding clamping system design, the feed system design, PLC control system design and structural design of drilling machine, etc. Of which mainly lies in the feeding system, feed system of pneumatic cylinder design and PLC control system design. Pneumatic system is designed to solve the freedom realization of spindle high-speed and axial. The PLC controlling system is mainly designed to realize the action control of the pneumatic circuit and the action design of drilling process though the application of the PLC control program. 目 录 摘 要 Ⅰ ABSTRACT Ⅱ 1 绪论 1 1.1 钻床的概述 1 1.2 现代制造业的发展状况 1 1.3 传统钻床的改进方法 2 1.4 本课题设计的内容及目标 3 2 全自动钻床的总体方案设计 4 2.1 自动钻床加工的工件及设计要求 4 2.2 自动钻床的工艺路线分析与确定 5 2.3 执行系统的方案设计 5 2.4 传动系统的方案设计 6 2.5 送料夹紧系统的方案设计 7 2.6 控制系统的方案设计 7 2.7 钻床总体布局设计 8 3 自动钻床气动系统的设计 9 3.1 采用气动自动化的经济效果 9 3.2 钻床气动系统的动作分析及结构设计 10 3.3 自动钻床进给系统的设计 12 3.4 自动钻床传动系统的设计 19 3.5 自动钻床送料夹紧系统的设计 21 3.6 自动钻床控制元件的选择 25 3.7 气源装置及气动辅助元件的选择 26 3.8 钻床的气动回路设计 29 4 钻床的PLC控制系统设计 31 4.1 PLC概述 31 4.2 PLC在顺序控制中的应用 31 4.3 用PLC控制气动钻床的优点 31 4.4 PLC的控制系统设计内容 32 4.5 PLC的硬件系统