Design and development of the Horizontal Hydrostatic Spindle

• Main Authors: Kuo,Tsai-Chin, 郭再欽
• Other Authors: Chen,Ming-Fei
• Format: Others
• Language: zh-TW
• Published: 2018
• Online Access: http://ndltd.ncl.edu.tw/handle/272v27

碩士 === 國立彰化師範大學 === 機電工程學系 === 106 === The purpose of this paper is to design and develop a set of horizontal spindle for the hydraulic lathes. The main specifications include a system stiffness of 877.93 N/μm and a system flow of 4.31 L/min. Firstly, the design specification of the hydrostatic spindle is determined according to the system stiffness of a composite roller and ball lathe spindle. Secondly, a complete hydrostatic spindle design process is established. At beginning the types of oil chamber and the orifices are selected. Then, using the characteristics of the thrust and radial bearings the system stiffness of the hydrostatic spindle is obtained. Finally, the 2D machining draws of the hydrostatic spindle are finished. In this paper the effect of temperature on changes in oil properties are analyzed too. In addition, the design method is also proposed for the "unloading mechanism" in the spindle drive mechanism. These presented methods can be used as a reference for future spindle design. Keywords: hydrostatic spindle, oil chamber, orifice, unloading mechanism, oil supply system, oil cooling system.