机床轻量化设计基本单元物理性能与数据库的研究

Physical property of basic unit and database in machine tool lightweight design

探讨机床轻量化单元设计技术,研究壁板类单元的结构性能,构建机床轻量化设计基本单元数据库,为机床支承件轻量化设计提供科学依据。通过研究实际工程应用中机床支承件的内部结构特征,提出机床轻量化壁板类单元概念,抽象出7种壁板类基本单元,建立壁板类基本单元型谱。基于AN-SYS有限元分析方法,建立7种壁板类基本单元的参数化物理模型。在基本单元尺度参数和质量相同情况下,分别研究了7种壁板类基本单元的静动态性能。得到各种基本单元的拉、压、弯、扭静态性能,以及动态基频分布规律,为机床轻量化数据库提供数据来源。

To provide the scientific basis for machine tool structure lightweight design,the machine tool lightweight unit design technology is explored.The structure performance of panel-type unit is investigated.The basic unit database for the machine tool lightweight design is constructed.Through researching the internal structure feature of machine tool components in practical engineering application,the concept of lightweight panel-type unit is proposed.Seven kinds of plane-type basic units are abstracted,and the plane-type basic unit spectrum is established.Based on ANSYS finite element analysis method,the seven kinds of parametric physical models with plane-type basic unit are built.In the situation of basic unit with same dimension parameters or same mass,the static and dynamic performances of seven kinds of plane-type basic units are studied respectively.The static property of each kind of basic unit in pull,press,bend and twist,as well as the dynamic base frequency distribution rule are obtained,which provides the data sources for the machine tool lightweight database.