摘  要

我国的液压工业始于1950年代，当今中国的液压和气动技术广泛应用于各种机械设备。复杂机床广泛用于大批量生产。多用途机床——动力滑台主要通用部件用于实现进给运动，只要配合不同用途的主轴头，即可实现钻、扩、铰、镗、铣、刮端面、倒角及攻丝等加工。动力滑轨分为机械滑轨和液压滑轨。

本次设计的复合机床动力滑台液压系统，采用单杆活塞油缸，活塞杆固定，调速杆沿轴向固定在油缸外侧。调速杆各部分高度控制工作速度和长度调节，工作速度持续时间，单杆活塞气缸膨胀，调速杆压下行程阀滚轮。通过改变行程阀口的开度来控制液体流入单杆液压缸流量，最终控制单杆活塞缸的运动速度。行程阀为二位二通电动阀，出口与单杆活塞缸的无杆腔相通，进口与电液换向阀、单杆活塞缸和行程阀卸荷阀相通，压力供应止回阀、背压与安全阀、油箱、液压泵、机油滤清器、压力继电器、延迟节流阀、继电器止回阀等配套使用。该设计具有结构简单、能耗低、控制精度高等优点。

关键词：组合机床；动力滑台；液压系统；液压缸；液压滑台

Absrtact

China's hydraulic industry began in the 1950s, today China's hydraulic and pneumatic technology is widely used in various mechanical equipment.Complex machine tools are widely used for mass production.Multi-purpose machine tool —— power slide platform main general components are used to achieve feed movement, as long as the spindle head of different uses, you can realize drilling, expansion, hinge, boring, milling, scraping end surface, chamfer and tapping processing.Power slide rail is divided into mechanical slide rail and hydraulic slide rail.

The hydraulic system of composite machine tool adopts single rod piston cylinder. The piston rod is fixed on the outside of the cylinder along the axis.The height of each part control working speed and length adjustment, working speed duration, single rod piston cylinder expansion, speed rod pressure stroke valve roller.Control the liquid flow into the single rod hydraulic cylinder by changing the opening of the stroke valve port, and ultimately control the movement speed of the single rod piston cylinder.Travel valve is a two-way electric valve, the outlet is interlinked with the non-rod chamber of single rod piston cylinder, the inlet is interlinked with electrohydraulic reversing valve, single rod piston cylinder and stroke valve unloading valve, pressure supply check valve, back pressure and safety valve, fuel tank, hydraulic pump, oil filter, pressure relay, delay throttle valve, relay check valve and other supporting use.The design has the advantages of simple structure, low energy consumption and high control accuracy.

Key words: combination of machine tool; power slide table; hydraulic system; hydraulic cylinder; hydraulic slide table

目  录

摘  要

Absrtact

1 绪论

1.1 选题背景及意义

1.2 发展现状

1.3 设计要求主要参数

2 负载与运动分析计算

2.1 该组合机床的主参数分析

2.2 液压缸速度控制图以及受力图

3 组合机床动力滑台液压系统动力元件的选用

3.1 液压缸活塞参数的确定

3.2 液压泵的选用

3.3 液压泵驱动电机的选用

3.4 油管的设计选用

3.5 其他液压元件的选用

4 组合机床动力滑台液压系统图设计

4.1 液压调速回路的选择

4.2 组合机床动力滑台液压系统调压回路的设计

4.3 组合机床动力滑台液压系统换向回路的设计

4.4 组合机床动力滑台液压系统原理图设计

4.5 组合机床动力滑台液压系统工作过程

4.5.1 液压缸快进工况

4.5.2 液压缸一工进工况

4.5.3液压缸二工进工况

4.5.4 液压缸保压工况

4.55 液压缸快退工况

4.5.6 卸荷回路

5 其他零部件设计

5.1 板式连接集成块设计

5.1.1 组合机床动力滑台液压系统机构选择

5.1.2 板式连接集成块设计

5.1.3 集成块的优化

5.2 液压缸的设计

5.2.1 缸筒结构的设计

5.2.2 油缸缸筒材料的要求

5.2.3 油缸壁厚计算以及验算

5.2.4 液压缸总长度计算

5.3 组合机床动力滑台液压系统油箱的设计

5.3.1 油箱的容量设计

5.3.2 油箱的结构设计

5.3.4 系统油液温升计算

总  结

参考文献

致  谢