换向阀阀体通油口、连接螺栓孔钻孔组合机床液压系统设计说明书.doc

换向阀阀体通油口、连接螺栓孔钻孔组合机床液压系统设计说明书 摘要 I Abstract II 1 绪论 1 1.1课题的背景 1 1.2组合机床概述 3 1.3专用组合机床的介绍 5 1.4液压系统简介 8 1.5液压传动技术的发展与应用 13 2 确定液压系统方案，拟定液压系统图 13 2.1调速方案 13 2.2换向，换节方式 14 2.2.1泵源的选择 15 2.3液压系统的组合 15 2.3.1运动和动力参数 15 2.4绘制液压系统图 16 3 液压滑台的液压动力系统设计 17 3.1运动负载分析计算 3.2确定执行元件类型及基本参数确定液压控制方案确定液压控制元件 3.5校核新型组合钻床，属于机械加工用钻床。它由工作台、安装在工作台两端及一侧的导轨，导轨与工作台的边缘平行，钻架通过吊铁和锁紧螺钉安装在导轨上；导轨上设有燕尾，钻架可在导轨上水平移动；钻架包括溜板、溜板上装有传动机构，溜板底面上设有与导轨上的燕尾相配合的燕尾槽，机械滑台上装有主支撑架，主支撑架上装有纵向机械滑台及控制系统，控制系统连接一控制活动按钮站，纵向机械滑台上装有附属支撑架，附属支撑架上通过机械滑台装有水平方向的钻削动力头。它解决了现有的钻床加工大型零部件特别是回转体直径较大时操作不方便、加工困难等技术问题。 关键词：液压系统过载保护 压缩成型 液压系统  ABSTRACT As one of the modern machinery equipment ransmission and control important technical means, hydraulic technology in the field of national economy has been widely used. Compared with other transmission control technology, hydraulic technology has high energy density, flexible and convenient configuration, large speed range, rapid and smooth work ability, easy to be controlled and overload protection, easily rintegration ,system integration design ,easy maintenance in manufacturing operation and other significant advantages n technology which make it become the basic technology of modern mechanical engineering and the basic technology of modern control engineering. The hydraulic press and pressure machine is the main equipment for molding plastic injection and repressing material formation, such as stamping, bending, , metal sheet drawing, etc. it can be engaged in the adjustment, the mounting indentation, the grinding wheel formation, the swaging metal parts formation, the plastic products and the powder products suppressed formation.including the choice of motor, a crank connecting rod transmission design, shaft design, bearing design, selection of the key and the design of the frame, trying to through the design, so that the transport mechanism of walnut is simple, and can improve the efficiency, and also can reduce the energy consumption.Vibrating