M1432A万能外圆磨床液压系统设计

M1432A万能外圆磨床液压系统设计

摘要

在全面了解磨床结构、工作原理、液压系统的基础上，论文对磨床总体尺寸进行布局及对液压系统进行设计。M1432A型万能外圆磨床主要以磨削圆柱形或圆锥形（包括阶梯形）的外圆表面和内孔，成品的尺寸精度可达1～2级，表面光洁度可达T8～T10。对机床液压系统有着较高、较复杂的要求。用液压系统实现工作台的自动往复运动、砂轮架的快速进退、尾架顶尖的伸缩以及必要的联锁动作。

本系统在结构上采用了将开停阀、先导阀、换向阀、节流阀、抖动缸等组合一体的操纵箱。使结构紧凑、管路减短、操纵方便，又便于制造和装配修理。此操纵箱属行程制动换向回路，具有较高的换向位置精度和换向平稳性。而且采用活塞杆固定式双杆液压缸，还对液压系统的回路做了进一步的设计和改进。

关键词：磨床；液压缸；万能型外圆磨床；液压系统；操纵箱

ABSTRACT

Based on understanding grinder structure, work principle, and the hydraulic system, the paper carries on the overall size layout of the grinder and the design of the hydraulic system. M1432A multifunction cylindrical grinding is mainly used to grind the cylindrical surface and the hole inside of cylinder and cone (including stepped appearance). The size precision of the final product may achieve 1~2grade. The finish degree of surface may achieve T8-T10. So it required higher and more complex requirement to the hydraulic pressure system of machine tool. Through hydraulic system, the automatically reciprocating motion of working table, the advance and retreat of grinding wheel rack, the expansion and contraction of tail stock center, as well as the essential interconnection movement can be realized.

In the paper, the system adopt the control box which is composed of the opening and stopping valve, pilot valve, directional control valve, throttle valve, the vibration cylinder and so on. It makes the structure compact, the pipeline short, and the operation convenient, and it is convenient to manufacture, assemble and repair. This control box is a type of travel braking changeover circuit; it has higher commutation position precision and the commutation stability. Moreover, the system adopts the piston rod stationary type double pole hydraulic cylinder, and we also make the further design and change to the loop of hydraulic system.

Key words:Grinder；Hydraulic Cylinder；Multi-purpose Cylindrical Grinder；

Hydraulic System；Control Box

目录

摘要....................................................................................................................................... I Abstract .............................................................................................................................. II 第1章绪论 (1)

1.1选题的背景目的及其意义 (1)

1.1.1背景 (1)

1.1.2目的及其意义 (2)

1.2国内外磨床研究状况和相关领域中已有的研究成果 (2)

1.3对选题的研究设想、研究方法 (3)

1.4预期结果和意义 (5)

第2章机床总体方案的确定 (6)

2.1总体设计 (6)

2.1.1 主要技术指标设计 (6)

2.1.2 总体方案设计 (6)

2.1.3 总体方案综合评价和选择 (6)

2.1.4 总体方案的设计修改和优化 (6)

2.2详细设计 (7)

2.3机床整体综合评价 (7)

2.4本章小结 (7)

第3章总体尺寸布局设计 (8)

3.1纵向尺寸关系图的确定与绘制 (8)

3.1.1 确定纵向尺寸的基准线 (8)

3.1.2 确定砂轮对称中心线位置............................................ 错误!未定义书签。

3.1.3 确定工作台对称中心线位置 (9)

3.1.4 确定上、下工作台长度 (9)

3.1.5 确定油压筒用活塞杆的固定形式和长度 (9)

3.1.6 确定后床身上面的垫导板导轨尺寸位置 (10)

3.1.7 确定横进给丝杆中心位置............................................ 错误!未定义书签。