摘要
大型液体静压转台的底部支承布局对于静压导轨平面度误差有着显著的影响。为了研究如何减小转台在承载工况下静压导轨的平面度误差,在分析了转台底部支承布局相关参数对静压导轨平面度误差影响规律之后,提出一种转台底部支承布局重构方法。首先建立转台底部支承布局的参数化模型,然后基于有限元方法分析额定负载下不同转台底部支承布局下的静压导轨平面度误差大小。提取静压导轨平面度误差值,利用MATLAB曲线拟合工具研究转台底部支承布局对静压导轨平面度误差影响规律。在此基础上对转台底部支承布局进行重构,重构结果表明静压导轨的平面度误差显著减小,静压转台的承载能力得到提高。
The bottom support layout of a large liquid hydrostatic turntable has a significant influence on flatness error for a hydrostatic guide.To study how to reduce the flatness error under the condition of turntable subjected to load,the reconstruction method of the bottom support layout on a turntable is proposed,after analyzing the influence of the parameters related to the bottom support layout on the flatness error.Initially,the parametric model of the bottom support layout is established,and then the flatness error under the condition of different bottom support layouts subjected to rated load is analyzed based on the finite element method(FEM).The flatness error value is obtained,and MATLAB curve fitting tool is used to study the influence of the turntable bottom support layout on the hydrostatic guide flatness error.On this basis,the bottom support layout of the turntable is reconstructed.The results show that the load capacity of the hydrostatic turntable improves with the reduction of the flatness error.
作者
仝志伟
洪荣晶
孙付仲
TONG Zhiwei;HONG Rongjing;SUN Fuzhong(College of Mechanical and Power Engineering,Nanjing Tech University,Nanjing 211816,CHN)
出处
《制造技术与机床》
北大核心
2022年第2期67-72,共6页
Manufacturing Technology & Machine Tool
基金
江苏省自然科学基金(BK20180704)。
关键词
大型静压转台
静压导轨
有限元分析
曲线拟合
支承布局重构
large hydrostatic turntable
hydrostatic guide
finite element analysis
curve fitting
support layout reconstruct
作者简介
第一作者:仝志伟,男,1994年生,在读硕士研究生,研究方向为机械产品现代设计方法。E-mail:1046479678@qq.com;通讯作者:洪荣晶,男,1963年生,教授,博士生导师,研究方向为数控理论及应用和数字化制造技术。E-mail:1545845488@qq.com。
