摘要
针对TK13250E数控转台在不同安装方式下,因静刚度的波动而影响加工精度与表面质量的问题,提出了转台的静刚度优化分析方案。利用ABAQUS有限元软件,分析了立、卧式安装方式下的静刚度状况,研究了不同半径下轴向、径向刚度与工作台的非线性关系。采用工作台面的轴向、径向刚度的数学期望为评判标准,筛选出高于期望的工作区域,在所选区域进行加工操作分析,得出了此区域的刚度波动较于其他区域显著减小,有利于提高零件的加工质量。该研究方法对于转台的早期设计和优化有着重要的工程应用价值。
In order to solve the problem that the precision and surface quality of the TK13250 E NC rotary table affected by the fluctuation of the static stiffness in different installation modes,the static stiffness optimization scheme was proposed. Using ABAQUS finite element software,the static stiffness of the vertical and horizontal installation was analyzed,and the nonlinear relationship between the axial and radial stiffness of the worktable was studied. The axial and radial stiffness mathematical expectation of the working table was as the evaluation criteria. The selected work area was higher than the expected. In the selected areas of processing and operation analysis,the regional stiffness fluctuation decreased significantly than the other area,and it improved the machining quality of parts. The research method has important engineering application value for the early design and optimization of the turntable.
出处
《轻工机械》
CAS
2017年第6期11-15,21,共6页
Light Industry Machinery
关键词
数控转台
转台轴承
加工位置
静刚度
ABAQUS有限元软件
NC rotary table
turntable bearing
machining position
static stiffness
ABAQUS finite element software
