大型立式强力数控旋压机控制系统稳定性调节

摘要

本设备为某大型立式三旋轮强力数控旋压机,采用封闭式整体框架结构,以加工薄壁筒形件为主.毛坯材料为超高强度钢、不锈钢和有色金属,设计要求旋轮座径向最大推力500kN/轮,轴向最大推力333kN/轮,机床轴向坐标行程1600mm,径向和轴向定位精度分别为0.02mm和0.04mm.设备旋压吨位大、行程长、位置精度高,控制系统采用数控系统控制液压驱动的全闭环控制模式.本文论述了采用Siemens840D数控系统和西门子液压驱动模块控制高频响比例伺服阀,驱动非对称液压油缸的大型立式旋压机系统稳定性的调节.%This equipment is a large vertical three-roller powerful CNC spinning machines. It uses closed solid frame structure, consisting mainly processing thin wall barrel structure. Rough materias are ultra-high strength steel, stainless steel and nonferrous metals. Design requirement is that the radial maximum thrust of rotating wheel seal is 500kN/wheel, the axial maximum thrust is 333kN/wheel.The axial coordinate stroke of the machine is 1600mm.The radial and axial positioning accuracies are 0.02mm and 0.04mm. Large tonnage, length stroke, high position precision are the characteristics of the spinning machine. The control system uses the ftill closed loop control mode hydraulically driven by CNC system in the control system. This article discusses the proportional servo valves of the high frequency response controlled by Siemens 840D CNC system and Siemens hydraulic driven module are used to adjust the stability driven by the asymmetric hydraulic cylinder in large vertical spinning machine.