The application of hydrostatic bearings to high precision machine tools

1964 ◽  
Vol 43 (11) ◽  
pp. 556 ◽  
Author(s):  
J. Loxham ◽  
J. Hemp
Keyword(s):  
High Precision ◽  
Machine Tools ◽  
Precision Machine ◽  
Hydrostatic Bearings ◽  
Precision Machine Tools

scholarly journals Manufacturing-error-based maintenance for high-precision machine tools

2017 ◽  
Vol 95 (1-4) ◽  
pp. 205-217
Author(s):  
Shengyu Shi ◽  
Jing Lin ◽  
Xiaoqiang Xu ◽  
Xiaobing Feng ◽  
Samanta Piano
Keyword(s):  
High Precision ◽  
Machine Tools ◽  
Manufacturing Error ◽  
Precision Machine ◽  
Precision Machine Tools

Design of Spindle Supported by High Stiffness Water Hydrostatic Thrust Bearing

2013 ◽  
Author(s):  
Yohichi Nakao ◽  
Kohei Yamada ◽  
Kenji Suzuki
Keyword(s):  
Machine Tools ◽  
Water Pressure ◽  
Machining Accuracy ◽  
Thrust Bearings ◽  
High Stiffness ◽  
Precision Machine ◽  
Hydrostatic Bearings ◽  
Ultra Precision ◽  
Bearing Stiffness ◽  
Precision Machine Tools

A precision spindle is a key component of the ultra-precision machine tools that are used for machining precision molds for producing various lenses and other precise parts. The machining accuracy required for the parts now reaches several tens of nanometers. In order to achieve the desired machining accuracy, the precise spindle system with high stiffness bearings is inevitably needed for the ultra-precision machine tools. The paper thus deals with a design of a spindle supported by water hydrostatic bearings. An objective of the study is to design the precision spindle supported by the water hydrostatic bearings with the bearing stiffness of 1 kN/μm. Thus the paper presents the design procedure of the hydrostatic thrust bearings. In particular, the design of the bearing restrictors is introduced. The characteristics of water hydrostatic thrust bearings of the designed spindle are investigated theoretically. The influences of the gap sizes and the supply water pressure on the bearing stiffness are given. It is indicated that the bearing stiffness of 1 kN/μm can be obtained by the spindle design. Structure and materials of the developed spindle are also introduced.

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