双主轴数控机床是一种具有两个独立的加工主轴的先进数控机床。本文以某机床厂研发的G650双主轴数控机床工作台为研究对象,采用CAD软件建立了其三维模型,并采用有限元法及其软件对工作台进行了静力学分析和模态分析,研究了工作台在铣削...双主轴数控机床是一种具有两个独立的加工主轴的先进数控机床。本文以某机床厂研发的G650双主轴数控机床工作台为研究对象,采用CAD软件建立了其三维模型,并采用有限元法及其软件对工作台进行了静力学分析和模态分析,研究了工作台在铣削加工状态下的静力学特性和约束状态下的模态特性。通过分析结果可知,工作台的最大形变约2.30 μm、最大应力约9.78 MPa,前四阶固有频率分别为952.86 Hz、1003.30 Hz、1360.60 Hz、1428.90 Hz。分析结果表明了该工作台能确保待加工零件的加工精度和定位精度,为后续的优化设计工作奠定了基础。Double spindle CNC machine tool is an advanced CNC machine tool with two independent machining spindles. This paper takes the table of G650 double spindle CNC machine tool developed by a machine tool factory as the research object, establishes its three-dimensional model by using CAD software, and carries out static analysis and modal analysis of the table by using the finite element method and its software to study the static characteristics of the table in the milling machining state and the modal characteristics of the constrained state. It was found that the maximum deformation of the panel was approximately 2.30 µm, the maximum stress was approximately 9.78 MPa and the first four eigenfrequencies were 952.86 Hz, 1003.30 Hz, 1360.60 Hz and 1428.90 Hz. The analysis results show that the table can ensure the machining accuracy and positioning accuracy of the parts to be machined, which lays the foundation for the subsequent optimisation design work.展开更多
文摘双主轴数控机床是一种具有两个独立的加工主轴的先进数控机床。本文以某机床厂研发的G650双主轴数控机床工作台为研究对象,采用CAD软件建立了其三维模型,并采用有限元法及其软件对工作台进行了静力学分析和模态分析,研究了工作台在铣削加工状态下的静力学特性和约束状态下的模态特性。通过分析结果可知,工作台的最大形变约2.30 μm、最大应力约9.78 MPa,前四阶固有频率分别为952.86 Hz、1003.30 Hz、1360.60 Hz、1428.90 Hz。分析结果表明了该工作台能确保待加工零件的加工精度和定位精度,为后续的优化设计工作奠定了基础。Double spindle CNC machine tool is an advanced CNC machine tool with two independent machining spindles. This paper takes the table of G650 double spindle CNC machine tool developed by a machine tool factory as the research object, establishes its three-dimensional model by using CAD software, and carries out static analysis and modal analysis of the table by using the finite element method and its software to study the static characteristics of the table in the milling machining state and the modal characteristics of the constrained state. It was found that the maximum deformation of the panel was approximately 2.30 µm, the maximum stress was approximately 9.78 MPa and the first four eigenfrequencies were 952.86 Hz, 1003.30 Hz, 1360.60 Hz and 1428.90 Hz. The analysis results show that the table can ensure the machining accuracy and positioning accuracy of the parts to be machined, which lays the foundation for the subsequent optimisation design work.
