自动送料论文开题报告

自动送料机，一种自动化的材料输送设备，相比较传统送料机操作更加的简便，自动化程度更高。广泛应用于轻、重工业零件的冲压。

毕业设计(论文)开题报告

摘要

可编程序控制器(Programmable controller)简称PLC，由于PLC的可靠性高、环境适应性强、灵活通用、使用方便、维护简单，所以PLC的应用领域在迅速扩大。对早期的PLC，凡是有继电器的地方，都可采用。而对当今的PLC几乎可以说凡是需要控制系统存在的地方就需要PLC。尤其是近几年来，PLC的成本下降，功能又不段增强，所以，目前PLC在国内外已被广泛应用于各个行业。本设计是为了实现送料小车的手动和自动化的转化，改变以往小车的单纯手动送料，减少了劳动力，提高了生产效率，实现了自动化生产!而且本送料小车的'设计是由于工作环境恶劣，不允许人进入工作环境的情况下孕育而成的。本文从第一章送料小车的系统方案的确定为切入点，介绍了为什么选用PLC控制小车;第二章介绍了送料小车的应达到的控制要求;第三章根据控制要求进行了小车系统的具体设计，包括端子接线图、梯形图(分段设计说明和系统总梯形图)和程序指令设计;

最后得出结论。

关键词：PLC，送料小车，控制，程序设计

第1章前言 ·························· - 3 -

第2章控制系统介绍和控制过程要求 ··············· - 3 -

2.1 控制系统在送料小车中的作用与地位 ··································· - 3 -

2.2 控制系统介绍 ·········································································· - 3 -

第3章送料小车系统方案的选择 ················· - 5 -

3.1 可编程控制器 PLC的优点 ···················································· - 5 -

3.2 小车送料系统方案的选择 ······················································· - 6 -

第4章基于PLC的送料小车接线图及梯形图 ············ - 6 -

4.1 送料小车PLC的 I/O分配表 ················································· - 6 -

4.2 PLC端子接线图 ······································································· - 8 -

4.3 梯形图分段设计 ···································································· - 10 -

4.4 程序运行原理说明调试与完善 ············································· - 14 -

4.5 系统总梯形图设计 ································································ - 15 -

4.6 小车程序设计 ········································································ - 20 - 结论 ····························· - 22 - 谢辞 ····························· - 23 -

参考文献 ··························· - 23 -

第1章前言