plc控制的自動送料小車設計


目 錄

目 錄.................................................................................................................................1
摘 要................................................................................................................................2
引言................................................................................................................................3
第1章可編程控制器（PLC）概況.................................................................................3
　　　1.1 PLC的定義………………………………………………….............…....……4
　　　1.2 PLC的發(fā)展 ………………………………………………………...................4
　　　1.3 PLC的特點.........................................................................................................5
　　　1.4 PLC的基本組成及各部分作用.........................................................................5
　　　1.5 PLC的應用領域…………………………………………………….................8
第2章 控制系統(tǒng)介紹和控制過程要求 .10
2.1 控制系統(tǒng)的作用與地位.................................................................................10
2.2 控制系統(tǒng)介紹 10
第3章 送料小車系統(tǒng)方案的選擇 12
3.1 可編程控制器 PLC的優(yōu)點 12
3.2 小車送料系統(tǒng)方案的選擇 13
第4章 變速箱在小車中的應用……………………………………...........................14
　　4.1變速箱的概述和分類……………………………….....................……………14
　　4.2變速箱的基本組成和工作原理.........................................................................15
第5章 基于PLC的送料小車接線圖及梯形圖 19
5.1 送料小車PLC的 I/O分配表 19
5.2 PLC端子接線圖 20
5.3 梯形圖設計 21
5.4 調試及程序運行原理 26
　　　5.5系統(tǒng)總梯形圖設計...........................................................................................26
結    論 31
參考文獻 32

摘 要

　　　可編程序控制器簡稱PLC，由于PLC的可靠性高、環(huán)境適應性強、靈活通用、使用方便、維護簡單，所以PLC的應用領域在迅速擴大。對早期的PLC，凡是有繼電器的地方，都可采用。而對當今的PLC幾乎可以說凡是需要控制系統(tǒng)存在的地方就需要PLC。尤其是近幾年來，PLC的成本下降，功能又不段增強，所以，目前PLC在國內外已被廣泛應用于各個行業(yè)。
　　　本設計是為了實現(xiàn)送料小車的手動和自動化的轉化，改變以往小車的單純手動送料，減少了勞動力，提高了生產效率，實現(xiàn)了自動化生產！而且本送料小車的設計是由于工作環(huán)境惡劣，不允許人進入工作環(huán)境的情況下孕育而成的。
　　　本文從第一二章送料小車的系統(tǒng)方案的確定為切入點，介紹了為什么選用PLC控制小車；第三章介紹了送料小車的應達到的控制要求；第四章根據(jù)控制要求進行了小車系統(tǒng)的具體設計，包括端子接線圖、梯形圖(分段設計說明和系統(tǒng)總梯形圖)和程序指令設計；最后得出結論。
　　　
關鍵詞：PLC，送料小車，控制，程序設計

Abstract
The programmable controller PLC, because PLC has high reliability, strong environmental adaptability, flexible, easy to use, simple maintenance, so the application of PLC in the rapidly expanding. In early PLC, always have relays place, can use. But in today's PLC control system which require almost can say there is need to place PLC. Especially in recent years, the cost of PLC, function and not increase, so, at present, PLC has been widely used in various industries.
This design is to realize the manual and automatic feeding dolly transformation, change the past simple car manual feeding, reduced the labor force, improve the production efficiency, realize the automation of production! But this car is designed to feed the poor working environment, not allowed to enter the working environment of the circumstancesformed.
This article from the first chapter two system feeding dolly is determined as the breakthrough point, introduced the car why choose PLC control; the third chapter introduces the feeding dolly should meet the control requirements; the fourth chapter has carried on the concrete design of car system according to the control requirements, including the terminal wiring diagram, ladder diagram ( total trapezoid section system design specifications and drawings) and program design; finally draw a conclusion.

Keywords: PLC, feeding trolley, control, program design