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摘要
该课题主要是研究液压系统及电器控制电路设计、相关液压元件的选用和图纸绘制。而液压系统的工作原理在本课题中主要通过液压滑台的动作循环来实现.液压动力滑台是液压动力组合机床最主要的通用部件之一，是完成刀架切削运动和进给运动的动力部件。它的质量以及控制原理直接关系到零件的加工质量。液压动力滑台由滑台、滑座、油缸三部分组成.油缸固定在滑座上，活塞杆则固定在滑台的下面。滑座和滑台配置山-矩形导轨。滑台在滑座上的移动，借助于液压站打出的压力油通入油缸前腔或后腔来实现的。滑台的工作速度则通过调整节流阀进行无级调速。滑台的各种工作循环由专门的液压系统配以相应的电气及液压挡铁来实现。该课题完成后可为组合机床提供平稳、可靠的进给运动动力部件，从而来保证零件的加工质量。
关键词
液压动力滑台 液压控制原理 切削运动 进给运动
主要数据
工作面宽 B=250mm; 行程 250mm
进给力 10000N
滑台快进速度 10m/min
最小进给量 25mm/min
ABSTRACT
This theme is mainly study hydraulic system and electric control electrocircuit design, the selection of the hydraulic components and the paper drawing .In this theme, the working principle of the hydraulic system is realized by the operation cycle of the hydraulic power sliding table. Hydraulic power sliding table is one of the most universal components of the modular machine tool. It can finish the cutting movement and feed movement of the tool post . Its quality and control theory have something to do with the working quality of the parts directly. Hydraulic power sliding table is composed of sliding table, saddle and oil cylinder. Oil cylinder is fixed on the saddle and piston rod is fixed under the sliding table. The sliding table and the saddle set up E-rectangular guide way. The removal of the sliding table is depended on which the pressure oil from the hydraulic station flows into the front space or the back space of the oil cylinder. The working speed of the sliding table carries on stepless speed changing through adjusting throttle valve. All kinds of the working circulation of the sliding table is finished by special hydraulic system setting up corresponding electric and hydraulic stopper. This theme supplies stable and reliable feed movement power component for the modular machine tool to assure the working quality of the parts.
KEY WORD
Hydraulic power sliding table Hydraulic control theory Cutting movement
Admission movement
MAIN DATUM
The breadth of the Working face breath: B=250mm Stroke: 250mm
Feed force: 10000N The lest depth of feed: 25mm/min
The rapid feed speed of the sliding table: 10m/min
目 录
绪论················································1
液压动力滑台有关备用数据的计算······················2
第1章 液压缸的结构设计······························3
1.1 负载图及速度图·································3
1.2 初定液压缸的结构尺寸···························4
1.3 液压缸工况图···································5
第2章 拟订液压回路·································9
2.1 选择液压回路···································9
2.2 组成液压系统图································10
第3章 计算和选择液压元件···························13
3.1 确定液压缸的规格和电机功率·····················13
3.2 液压阀的选择···································14
3.3 确定管道尺寸···································15
3.4 确定油箱容量···································15
第4章 液压系统主要性能的估算·······················16
4.1 液压缸的速度···································16
4.2 系统的效率·····································16
4.3 液压系统发热与温升的验算·······················22
第5章 导轨的设计计算与检验·························24
5.1 导轨的设计计算·································24
5.2 导轨许用比压值的算·····························25
5.3 导轨面比压的计算·······························25
结束语··············································30
个人心得············································31
谢词················································32
参考文献············································33
附录················································34
译文资料············································34
资料译文············································49
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