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本文通过对УFD—100液压仿形刀架动静特性的分析,推导和建立了四边滑阀控制的不对称油缸机液伺服系统的动静态数学模型。文中就其动特性分别在时域、频域中进行了求解,结果指出,不对称油缸两腔面积比对动特性的影响不可忽略,同时指出适当增大伺服阀的配合间隙范围有利于提高稳定性、简化制造工艺和降低成本。所得结论为新形液压仿形刀架设计提供了一定的理论依据。液压仿形刀架作为金属切削机床的通用仿形附件,在扩大饥床的使用范围、减轻操作者的劳动强度和实现机床自动化加工中起着十分重要的作用。目前,国内对四边滑阀控制的不对称油缸组成的仿形刀架性能研究甚少,本文就我国目前生产的 YFD—100液压仿形刀架作初次分析,以寻求提高稳定性、简化工艺、降低成本的措施。
Based on the analysis of the dynamic and static characteristics of the УFD-100 hydraulic profiler, the dynamic and static mathematical models of the asymmetric cylinder hydraulic servo system controlled and controlled by the four-sided spool valve are derived and established. In this paper, the dynamic characteristics of the servo valve are solved respectively in the time domain and the frequency domain. The results show that the influence of the area ratio of the two chambers in the asymmetric cylinder on the dynamic characteristics can not be neglected. Meanwhile, it is pointed out that properly increasing the range of servo valve clearance is beneficial to stabilizing Simplify the manufacturing process and reduce costs. The conclusion provides a theoretical basis for the design of the new hydraulic fracturing turret. As a universal copy attachment for metal cutting machine tools, hydraulic profilers play an important role in expanding the use of the bed, reducing the operator’s labor intensity and realizing automatic machining of machine tools. At present, there are few researches on the performance of the profiled truss composed of asymmetric cylinders controlled by the four-sided spool valve in our country. In this paper, the first analysis of the YFD-100 hydraulic profiled truss currently produced in our country is carried out in order to improve the stability and simplify the process, Measures to reduce costs.