单柱液压锻压机总体设计+CAD图纸
ABSTRACT
This machine is suitable for the suppression of plastic materials, processes, such as stamping, bending, flange, sheet steel and other technology can also be used to correct, press-fit, wheel forming, cold extrusion forming of metal parts, plastic products and powder products forming process .Button on the machine for centralized control, can be manually adjusted to achieve the two practices and semi-automatic cycle
Working pressure of the machine, fast, and slow down the trip down the scope of work to be done according to regulation. It can achieve with the top out and without the top two kinds of process methods, the way each technology have given constant pressure forming and shaping of two-way process moves to choose from. After the suppression of the master cylinder has a packing, delay, and return other functions, and top out top out when there are delays, return and other activities. Paul rolled the top of the time and the time delay relay can be adjusted by the time set. This machine has an independent power system, easy adjustment and maintenance. Plate valve hydraulics system integration, compact and reliable action.
Keywords: forging machine, centralized control,Mechanical Design, Hydraulic System, Programmable Logic Controller
目录
1 绪论 1
1.1 研究的背景及意义 1
1.2 锻压机的工作原理 1
1.3 锻压机中液压传动的优缺点 2
2 锻压机总体结构 3
2.1课题的主要技术要求 3
2.2 锻压机的箱体结构 3
2.3 液压系统各部件的选择 4
2.4 确定液压缸的种类 7
2.5 液压阀的选择 7
2.6 液压泵的选择 8
2.7 电动机的选择 9
3 液压缸主要参数 9
3.1 液压缸的尺寸计算 9
3.2 液压缸尺寸强度校核 10
3.3 液压缸活塞杆稳定性校核 11
3.4 液压缸结构的设计 13
4 PLC控制 23
4.1传感器的选择 23
4.2位置检测装置 23
4.3控制系统PLC的选型及控制原理 24
4.4 PLC种类及型号选择 24
4.5 PLC程序设计 25
5 结论 26
参考文献 27
致谢 28
1 绪论
1.1 研究的背景与意义
当前，液压技术在实现高压、高速、大功率、高效率、低噪声、经久耐用、高度集成化等各项要求方面都取得了重大的进展，在完善比例控制、数字控制等技术上也有许多新成就。此外，在液压元件和液压系统的计算机辅助设计、计算机仿真和优化以及微机控制等开发性工作方面，日益显示出显著的成绩。锻压机械是指在锻压加工中用于成形和分离的机械设备。锻压机械包括成形用的锻锤、机械压力机、液压机、螺旋压力机和平锻机，以及开卷机、矫正机、剪切机、锻造操作机等辅助机械。锻压机械主要用于金属成形，所以又称为金属成形机床。锻压机械是通过对金属施加压力使之成形的，力大是其基本特点，故多为重型设备，设备上多设有安全防护装置，以保障设备和人身安全。