1、单片机控制四柱液压机设计 I 摘 要 本设计为中型四柱式液压机，主机最大工作负载设计为 2500KN。主机主要由上梁、导柱、工作台、移动横梁、主缸、顶出缸等组成。通过具体的参数计算及工况分 析，制定总体的控制方案。 经方案对比之后， 主机部分采用 “ 三梁四柱 ”式的结构形式 ,拟定液压控制系统原理图。液压系统液压缸采用双作用活塞缸，采用恒功率变量泵 供油。 经方案对比之后，拟定液压控制系统原理图 。为解决主缸快进时供油不足的问题，主机顶部设置补油油箱进行补油。主缸的速度换接与安全行程限制通过行程开关来控制；为了保证工件的成型质量，液压系统中设置保压回路， 通过保压使工件稳定成型；为了防止产生
2、液压冲击，系统中设有泄压回路，确保设备安全稳定的工作。 详细设计了主机机械部分和液压部分对 电气控制系统进行了简要设计。 通过液压系统压力损失和温升的验算，本文液压系统的设计可以满足液压机顺序循环的动作要求，能够实现塑性材料的锻压、冲压、冷挤、校直、弯曲等成型加工工艺。 关键词： 液压系统；液压机； 四柱式；单片机控制 单片机控制四柱液压机设计 II ABSTRACT This paper design for the medium frame of hydraulic machines, the mainframes largest work load design for 2500KN.
3、Mainframe mainly by the beam、 guided、worktable、 mobile beams、 master cylinder、 cylinder head out of components etc. This paper focuses on the hydraulic system design. Through specific parameters and hydraulic mechanic situation analyzes, formulation of a master control program. By contrast, develope
4、d hydraulic control system diagram To solve the master cylinder express entered the shortage of oil supply in the top of the mainframe installed oil tank. Master cylinder for the speed of access restrictions and security through the trip exchanging to control switches.To ensure the quality of the wo
5、rk-piece molding, in the hydraulic system installed packing loop through packing work-piece stability molding； To prevent hydraulic shocks, pressure relief system with a loop to ensure that this equipment can be a safe and stable work. In addition, the paper hydraulic station on the overall layout o
6、f the key components of the hydraulic structure、 shape、technique for a specific design. By the loss of hydraulic system pressure and temperature checked. Hydraulic system is designed to meet the hydraulic action sequence and cycle requirements can be achieved by forging plastic materials, stamping, cold extrusion, straightening, bending, and other molding processes. Keywords: Hydraulic System ； Hydraulic Pressure machine； four-guideds
