高精度空气静压导轨研制
Development of High-Precision Aerostatic Guide Rails
李彬 1赵海洋 1吴媛媛 2任东旭 1袁森1
作者信息
- 1. 中原工学院智能机电工程学院(工业设计学院),河南郑州 450007
- 2. 郑州经贸学院智慧制造学院,河南郑州 451191
- 折叠
摘要
为了研制一种适用于高精度加工的空气静压导轨,采用闭式结构保证导轨精度和刚度,通过构建空气静压导轨结构流固耦合仿真模型,分析导轨零部件在流场中的受力形变以校核零件强度,建立偏转精度预测模型,在流场空间变化和零件受力变形相互叠加情况下考察导轨精度变化.通过仿真确定零件、部件形变量分别在 0.31、24 μm以内,导轨结构满足强度要求;利用电感测微仪对空气静压导轨进行直线度测量,得到导轨的垂直和水平直线度分别在 0.344、0.451 μm以内,与预测模型的结果一致.
Abstract
In order to develop an aerostatic guide rail suitable for high-precision machining,a closed structure was used to ensure guide rail accuracy and rigidity.By constructing a fluid-structure coupling simulation model for the aerostatic guide rail,the force de-formation of guide rail components in the flow field was analyzed to verify part strength.A deflection accuracy prediction model was es-tablished to examine guide rail accuracy variations under combined effects of flow field spatial changes and part deformation.Through simulation,component and part deformations are within 0.31 μm and 24 μm,respectively,meeting strength requirements for the guide rail structure.The straightness was measured by using an inductive displacement sensor.The results show that the vertical and horizontal straightness of the guide rail are within 0.344 μm and 0.451 μm,respectively,which is consistent with the predicted model results.
关键词
空气静压导轨/结构设计/流固耦合/精度计算Key words
aerostatic guide rail/structural design/fluid-structure interaction/precision calculation引用本文复制引用
出版年
2024
NETL
NSTL
万方数据