| 精密数控车床静压导轨性能仿真研究 |
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| 引用本文： | 李文锋,杜彦亭,李敏,贾广辉.精密数控车床静压导轨性能仿真研究[J].机床与液压,2012,40(5):14-17. |
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| 作者姓名： | 李文锋 杜彦亭 李敏 贾广辉 |
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| 作者单位： | 1. 西安交通大学机械学院,陕西西安,710049
2. 大连机床厂,辽宁大连,116620 |
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| 摘 要： | 静压导轨的静态性能会直接影响精密机床的精度,需要在设计阶段考虑各个设计参数对其静态性能的影响,以保证设计符合要求.根据流体力学以及闭式静压导轨的受力特点推导出油腔内部的压力计算公式；结合节流器特征方程建立承载能力与刚度分析方程,得到简化模型；利用Matlab仿真分析导轨及节流器设计参数对静压导轨静态性能的影响,得到各设计参数的最优取值.
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| 关 键 词： | 静压导轨 油腔压力 静态性能方程 承载能力 静刚度 |
The Performance Simulation Study of the Hydrostatic Guideway of Precision CNC Lathe |
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| LI Wenfeng
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DU Yanting
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LI Min
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JIA Guanghui.The Performance Simulation Study of the Hydrostatic Guideway of Precision CNC Lathe[J].Machine Tool & Hydraulics,2012,40(5):14-17. |
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| Authors: | LI Wenfeng DU Yanting LI Min JIA Guanghui |
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| Affiliation: | 1.Xi’an Jiaotong University,Xi’an Shaanxi 710049,China; 2.Dalian Machine Tool Factory,Dalian Liaoning 116620,China) |
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| Abstract: | The accuracy of precision machine tools will be reduced by the poor static performance of the hydrostatic guideway,and this effect for accuracy of each design parameter will be analyzed and considered within design stage to assure the accuracy requirement.The pressure formula of the pocket was derived based on the stress characteristics of the guideway and the hydrodynamics.Then the bearing capacity formula and stiffness formula were established based on restrictor characteristic equation and a simplified model was built.The influences of design parameters of the guideway and the restrictor on the static performance of the hydrostatic guideway were simulated by Matlab,the optimal design parameters values were gotten. |
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| Keywords: | Hydrostatic guideway Pocket pressure Static performance equation Bearing capacity Static stiffness |
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