Design and analysis of micro-feed device for ultraprecision fly-cutting machine tool

This paper provides the transfer matrix method to analysis the natural frequency of the vertical spindle using on ultra-precision fly cutting machine tool. Several transfer matrix equations of the typical units of the spindle had been established when considering the effects of the gyroscopic torque as the rotor has a large inertial tensor. And then the natural frequencies and each modal shape of the spindle rotor system were calculated using the transfer matrix model. Also, the modal experimental test had been taken out. The theoretical results from the transfer matrix model are very close to the test results, and the accuracy and the effective of the model was proved.

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Research on the Online Test of the Fly Cutting Machine Tool Spindle

Key Engineering Materials ◽

10.4028/www.scientific.net/kem.579-580.177 ◽

2013 ◽

Vol 579-580 ◽

pp. 177-180

Author(s):

Peng Qiang Fu ◽

Yong Zhang ◽

Fei Hu Zhang ◽

Jing He Wang

Keyword(s):

Machine Tool ◽

Test System ◽

Motion Error ◽

Radial Error ◽

Synchronous Motion ◽

Online Test ◽

Cutting Machine ◽

Fly Cutting ◽

Ultra Precision ◽

Error Motion

The online test system of the vertical spindle motion error of the ultra-precision fly cutting machine tool was established. And then using the online test system established to test and analyze the state of the rotary motion of the spindle under the idling condition. The axial synchronous motion error value of the spindle under 390rpm is about 61 nm, and the asynchronous error motion is about 33nm. The radial error motion value is about 91nm, and the asynchronous error is about 35nm. Through the test, we found that the axial and radial spindle error motion accuracy under idling speed can been improved with the spindle speed increases.

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Dynamic modeling of ultra-precision fly cutting machine tool and the effect of ambient vibration on its tool tip response

International Journal of Extreme Manufacturing ◽

10.1088/2631-7990/ab7b59 ◽

2020 ◽

Vol 2 (2) ◽

pp. 025301

Author(s):

Jianguo Ding ◽

Yu Chang ◽

Peng Chen ◽

Hui Zhuang ◽

Yuanyuan Ding ◽

...

Keyword(s):

Machine Tool ◽

Dynamic Modeling ◽

Ambient Vibration ◽

Cutting Machine ◽

Fly Cutting ◽

Ultra Precision

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Dynamic Analysis and Experimental Research of Laser Cutting Machines

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.915-916.31 ◽

2014 ◽

Vol 915-916 ◽

pp. 31-34

Author(s):

Qing Ping Zhang ◽

Zheng Ru Wang ◽

Yan Fang Wang

Keyword(s):

Machine Tool ◽

Modal Analysis ◽

Laser Cutting ◽

Machining Accuracy ◽

Dynamics Analysis ◽

Theoretical Base ◽

Test Results ◽

Cutting Machine ◽

Manufacturing Errors ◽

Theoretical Results

Vibration is one of the most important problems in laser cutting machine tool, which causes the manufacturing errors, also influences the machining accuracy of the parts. Modal analysis can calculate vibration type of structures. The paper presents how to use the powerful FEA software ANSYS to do the modal analysis on laser cutting machine tool and also studies the undamped free vibration on laser cutting machine tool. Finally, the test results and theoretical results were compared to verify the rationality of the modal, these provide theoretical base and conditions for dynamics analysis and optimal design.

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