摘要
目前超精密机床和仪器的主轴回转精度已经从微米级向着亚微米甚至毫微米级发展,因此采用何种轴系结构来达到这种精度是设计和制造者所关注的一个极其重要的问题。基于此,在设计超精密轴系过程中参考已有的国内外静压轴系,设计了一种回转精度极高的半球液体静压轴承;针对超精机床主轴头架,设计超精车床及磨床的机械结构,确定其液压工作原理,采用静压球轴系和静压止推轴系的结构,完成其三维结构设计及建模,各参数选取计算,液压油路设计,外部液压原理图等部分。
At present, the spindle rotation precision of ultra precision machine tools and instruments has developed from micrometer to sub micron or even nanometre. So which axis structure is used to achieve this precision is one of the important issues of design and manufacturing. In the process of designing ultra precision shafting, a kind of hemispherical hydrostatic bearing with high rotary precision is designed with reference to the existing static pressure axis system at home and abroad. The mechanical structure of the superfinishing lathe and the grinding machine is designed for the headstock of the superfine machine tool and its hydraulic working principle is determined. Using the static pressure ball shafting and the static pressure thrust shafting, its three-dimensional structure design and modeling, the parameters selection calculation, the hydraulic oil circuit design, the external hydraulic schematic diagram and so on are completed.
作者
谢洋
沈景凤
于成林
Xie Yang;Shen Jingfeng;Yu Chenglin(School of Mechanical Engineering,University of Shanghai for Science and Technology,Shanghai 200093,China)
出处
《农业装备与车辆工程》
2019年第8期104-108,共5页
Agricultural Equipment & Vehicle Engineering
关键词
半球液体静压轴承
超精机床
液压油路
外部液压原理
hemispherical hydrostatic bearing
ultra precision machine tool
hydraulic circuit
external hydraulic principle
