汽车刹车主缸密封检测台开发

论文编号:JX1551  论文字数:11149.页数:43 附任务书，开题报告，文献综述，外文翻译

摘  要

 本次毕业设计开发了刹车主缸密封检测台，用于检测刹车系统中主缸的密封性能。完成了检测台系统整体结构的设计，确定了硬件系统的组成和零部件。本课题中的机械部分以气动结构为核心，利用触摸屏与PLC作为中央处理核心。
 根据安装好的设备以及控制流程图提供的总体设计思路编写了PLC程序，用于控制各执行元件，实现了对主缸的高压（主缸内两腔分别0.7MPa和0.5MPa），低压（140KPa），以及端面密封（0.5MPa）的检测。本课题开发的刹车主缸密封检测平台，可以实现对汽车刹车系统中主缸的密封性能检测，多次测试表明本系统精度高、处理速度较快，达到了实时检测的要求。
 
关键词：密封检测； PLC；触摸屏

Abstract
 In this graduation design, I participate in a project to exploit Master Brake Cylinder Test-bed, which was used to detect seal capability of Master Brake Cylinder in brake system of automobile. We finished construction of the whole system design, and defined structure and spare parts of the hardware system. In this project we built pneumatic structure as the core of machinery parts, and touch screen compose PLC(Programmable Logic Controller) as the central processor.

 Under this fixed devices and flow chart which direct us the whole design scheme, we could program to control the other actuators. At last we should debugging the whole system, detect the Master Brake Cylinder in high pressure(each cavity inside the Master Brake Cylinder is 0.5MPa and 0.7MPa), low pressure(140KPa) and end sealing capability(0.5MPa).This Master Brake Cylinder Test-bed can detect seal capability of Master Brake Cylinder in brake system of automobile, times of tests showed the high accuracy and hyper processing speed of this system, reached the requirement of immediate detection.

Key words:  Sealing capability detection ；PLC ；Touch screen

目  录
摘要……………………………………………………………………………………I
Abstract…………………………………………………………………………………II
目录………………………………………………………………………………………III
1 前言…………………………………………………………………………………1
2 总体设计方案………………………………………………………………………3
 2.1 硬件系统………………………………………………………………………………… 4
 2.2 软件系统………………………………………………………………………………… 5
3 检测台构成…………………………………………………………………………6
   3.1 机械部分………………………………………………………………………………… 6
   3.2 气动结构………………………………………………………………………………… 6
   3.3 电气系统…………………………………………………………………………………13
       3.3.1 OMRON CP1H XA40DR-A……………………………………………………………13
       3.3.2 RS-232C通讯模块   OMRON CP1W-CIF01………………………………………15
       3.3.3触摸屏 MT6056i…………………………………………………………………17
       3.3.4气压传感器 CS1-G………………………………………………………………18
4 PLC编程………………………………………………………………………… 19
   4.1 PLC控制阀动作的气路编程…………………………………………………………  19
   4.2控制流程图……………………………………………………………………………  19
   4.3 编程语言………………………………………………………………………………  21
   4.4 编程环境CX-Programmer 7.3………………………………………………………… 22
5 系统的调试………………………………………………………………………23
   5.1 气路的调试…………………………………………………………………………… 23
   5.2 程序的调试…………………………………………………………………………… 23
   5.3 系统的改进方向……………………………………………………………………… 23
6 总结………………………………………………………………………………25
致谢…………………………………………………………………………………26
参考文献…………………………………………………………………………………27