1、Diploma Work (Project) Title: The Design of Hydraulic System and Master Cylinder for Universal Cylindrical Grinder Grade also can be processed to brittle materials such as glass, granite stone. Grinding can grind something which is high-precision or low surface roughness, also can carry out efficien
2、t grinding, such as powerful grinding, etc. Grinder is the most specious among all mental cutting machines. And among them, cylindrical grinder is the most widely used grinder which can be processing various cylindrical and round conical outer surface and shaft shoulder end of the grinder. And unive
3、rsal cylindrical grinder also contain semi-atuo grinding attachment, grinding internal holes and taper larger inside the cone. According to design parameters given by the task book, we designed for the universal cylindrical grinder hydraulic press hydraulic system, and also introduced the working pr
4、inciple of the hydraulic system and component selection, and calculated the structure size of the main fuel tank, and then check and analysis the results of the calculation. Finally, we analysis the hydraulic system common failure and give some ideas to deal with it. Key words Universal Cylindrical
5、Grinder Hydraulic System Hydraulic cylinder 机械设计制造及其自动化专业毕业设计（论文） 1 1 1 绪论绪论 1.1 1.1 课题背景课题背景 尽管当今液压技术面临着来自电气传动及控制技术的新竞争和绿色环保的新挑战， 但是 由于其独特的技术优势，使其在国民经济发展中，将仍然发挥无可替代的重大作用。 液压应用几乎遍及国民经济各个领域， 应用液压技术的程度已成为衡量一个国家工业化 水平的重要标志之一。 正确合理地设计和使用液压系统， 对于提高各类液压机械及装置的工 作品质和技术经济性能具有重要意义。 设计液压系统时，必须从实际情况出发，有机地结合各种传动
6、形式，充分发挥液压传动 的优点，力求设计出结构简单、工作可靠、成本低、效率高、操作简单、维修方便的液压传 动系统。 1 1.2 .2 万能外圆磨床液压系统工作原理万能外圆磨床液压系统工作原理的介绍的介绍 图 1.1 M1432A 型万能外圆磨床液压系统图 1先导阀 2换向阀 3开停阀 4互锁缸 5节流阀 6抖动缸 7挡块 8选择阀 9进给阀 10 进给缸 11尾架换向阀 12快动换向阀 13闸缸 14快动缸 15尾架缸 16润滑稳定器 17油箱 18 粗过滤器 19油泵 20溢流阀 21精过滤器 22工作台进给缸 1.2.1 工作台的往复运动 (1)工作台右行：如图所示状态，先导阀、换向阀阀芯均处于右端，开停阀处于右位。 万能外圆磨床液压系统及主油缸的设计 2 进油路：液压泵 19换向阀 2 右位(PA)液压缸 2 右腔； 回油路：液压缸 9 左腔换向阀 2 右位(BT2)先导阀 1 右位开停阀 3 右位节流 阀 5油箱。液压油推液压缸带动工作台向右运动，其运动速度由节流阀来调节。 (2)工作台左行：当工作台
