1 序言
组合机床动力滑台液压系统设计
作为一种高效率的专用机床，组合机床在大批、大量机械加工生产 中应用广泛。本次课程设计将以组合机床动力滑台液压系统设计为例， 介绍该组合机床液压系统的设计方法和设计步骤，其中包括组合机床动 力滑台液压系统的工况分析、主要参数确定、液压系统原理图的拟定、 液压元件的选择以及系统性能验算等。
3.5 拟定液压系统原理图·······························控制回路的选择······················································- 8 3.5.2 换向和速度换接回路的选择·············································- 9 3.5.3 油源的选择和能耗控制·················································- 10 3.5.4 压力控制回路的选择····················································- 11 -
轨，静摩擦系数 0.2，动摩擦系数 0.1，快进/退速度 5m/min，工进速度 100mm/min， 最大行程 350mm，其中工进行程 200mm，启动换向时间 0.1s，液压缸机械效率 0.9。 2. 执行元件类型：液压缸 3. 液压系统名称：
钻镗两用卧式组合机床液压动力滑台。
设计内容
1. 拟订液压系统原理图； 2. 选择系统所选用的液压元件及辅件； 3. 设计液压缸； 4. 验算液压系统性能； 5. 编写上述 1、2、3 和 4 的计算说明书。
3 工况分析 ·····························································- 2 -
3.1 确定执行元件 ······················································- 2 -
3.2 分析系统工况 ······················································- 2 -
指导教师
签字
教研室主任
签字
年 月 日签发
（董谚良老师，手机，，办公电话，86402748）
目录
1 序言···································································- 1 -
2 设计的技术要求和设计参数 ·········································- 1 -
哈尔滨工业大学
液压传动大作业
设计说明书
设计题目 卧式组合机床液压动力滑台
机电工程学院
班
设计者
2010 年 4 月 10 日 流体控制及自动化系
哈尔滨工业大学
液压传动大作业任务书
学生姓名 设计题目
班号 钻镗两用卧式组合机床液压动力滑台
1. 液压系统用途（包括工作环境和工作条件）及主要参数： 卧式组合机床液压动力滑台。切削阻力 F=15kN，滑台自重 G=22kN，平面导
组合机床是以通用部件为基础，配以按工件特定外形和加工工艺设 计的专用部件和夹具而组成的半自动或自动专用机床。组合机床一般采 用多轴、多刀、多工序、多面或多工位同时加工的方式，生产效率比通 用机床高几倍至几十倍。组合机床兼有低成本和高效率的优点，在大批、 大量生产中得到广泛应用，并可用以组成自动生产线。组合机床通常采 用多轴、多刀、多面、多工位同时加工的方式，能完成钻、扩、铰、镗 孔、攻丝、车、铣、磨削及其他精加工工序，生产效率比通用机床高几 倍至几十倍。液压系统由于具有结构简单、动作灵活、操作方便、调速 范围大、可无级连读调节等优点，在组合机床中得到了广泛应用。
3.7 液压系统性能的验算·············································- 19 -
3.7.1 回路压力损失验算·······················································- 19 3.7.2 油液温升验算 ·····························································- 20 -
3.3 负载循环图和速度循环图的绘制 ··································- 4 -
3.4 确定系统主要参数 ·················································- 5 -
3.4.1 初选液压缸工作压力······················································- 5 3.4.2 确定液压缸主要尺寸······················································- 5 3.4.3 计算最大流量需求·························································- 7 -
3.6 液压元件的选择 ··················································- 12 -
3.6.1 确定液压泵和电机规格·················································- 13 3.6.2 阀类元件和辅助元件的选择···········································- 14 3.6.3 油管的选择 ································································- 16 3.6.4 油箱的设计 ································································- 18 -