Evaluation Method to Determine Radial Error of Spindle Units on Simulation Turntable

Key Engineering Materials ◽

10.4028/www.scientific.net/kem.460-461.311 ◽

2011 ◽

Vol 460-461 ◽

pp. 311-316

Author(s):

Zhi Yong Qu ◽

Jun Wei Han

Keyword(s):

Small Angle ◽

Evaluation Method ◽

Simulation System ◽

Transformation Matrix ◽

Hardware In The Loop ◽

Error Sources ◽

Know How ◽

Form Errors ◽

Radial Error ◽

Error Motion

Many errors including radial error influence the accuracy of simulation turntable, which is a crucial equipment in hardware-in-the-loop simulation system. The aim of this paper is to propose a new method of radial error motion separation of rotating spindle on a simulation turntable. Based on transformation matrix and small angle approximation, gesture transformation matrix with various error items is achieved. As a result of this analysis, form errors of master ball are corrected and the eccentricity from the rotation error of a spindle is separated. This radial error analysis is carried out when this measurement result is applied to a simulation turntable. Furthermore, this study also permits the user to know how to minimize some error sources of the spindle system.

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Perpendicular Error Calibration of Simulation Turntable Using Transformation Matrix

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.121-122.107 ◽

2010 ◽

Vol 121-122 ◽

pp. 107-110

Author(s):

Zhi Yong Qu ◽

Zheng Mao Ye

Keyword(s):

Error Analysis ◽

Small Angle ◽

Simulation System ◽

Transformation Matrix ◽

New Method ◽

Hardware In The Loop ◽

Error Sources ◽

Know How ◽

Error Calibration ◽

Error Motion

Many errors including perpendicular error influence the accuracy of simulation turntable, which is a crucial equipment in hardware-in-the-loop simulation system. The aim of this paper is to propose a new method of perpendicular error motion separation of rotating spindle on a simulation turntable. Based on transformation matrix and small angle approximation, gesture transformation matrix with various error items is achieved. As a result of this analysis, perpendicular error analysis is carried out when this measurement result is applied to a simulation turntable. Furthermore, this study also permits the user to know how to minimize some error sources of the simulation turntable.

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Evaluation Method to Determine Perpendicular Error of Spindle Units Using Transformation Matrix

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.121-122.103 ◽

2010 ◽

Vol 121-122 ◽

pp. 103-106

Author(s):

Zhi Yong Qu ◽

Zheng Mao Ye

Keyword(s):

Error Analysis ◽

Evaluation Method ◽

Calibration Method ◽

Transformation Matrix ◽

Orientation Error ◽

Error Sources ◽

Know How ◽

Measurement Result ◽

Error Calibration

A 3-DOF simulation turntable with perpendicular errors is introduced. The characteristics of period and variation in the perpendicular error are liable to bring about orientation error, which is a function of the overall static inaccuracy. Aimed to compensate orientation error, a perpendicular error calibration method is proposed to measure the perpendicular error between the axis and the bushing of a rotating axis in simulation turntable. Based on transformation matrix, gesture transformation matrix with various error items is achieved. As a result of this analysis, perpendicular error analysis is carried out when this measurement result is applied to a simulation turntable. Furthermore, this study also permits the user to know how to minimize some error sources of the simulation turntable.

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Bore Cylindricity in Finish Cylinder Boring

Journal of Manufacturing Science and Engineering ◽

10.1115/1.4039442 ◽

2018 ◽

Vol 140 (6) ◽

Cited By ~ 1

Author(s):

Lei Chen ◽

Juhchin A. Yang ◽

Albert J. Shih

Keyword(s):

Thermal Expansion ◽

Fem Analysis ◽

Machining Process ◽

Error Sources ◽

Workpiece Temperature ◽

Coordinate Measurement ◽

Radial Error ◽

Cylinder Bore ◽

Error Motion ◽

Cylindricity Error

Finish boring is a machining process to achieve the cylinder bore dimensional and geometrical accuracy. The bore cylindricity error sources, including the workpiece thermal expansion and deformation due to cutting and clamping forces, and spindle radial error motion, in finish boring were identified using combined experimental and finite element method (FEM) analysis. Experiments were conducted to measure the workpiece temperature, cutting and clamping forces, spindle error, and bore shape. FEM analysis of the workpiece temperature, thermal expansion, and deformation due to cutting and clamping forces was performed. The coordinate measurement machine (CMM) measurements of the bore after finish boring showed the 5.6 μm cylindricity and a broad spectrum from the second to tenth harmonics. The FEM revealed the effects of workpiece thermal expansion (1.7 μm cylindricity), deformation due to cutting force (0.8 μm cylindricity), and clamping force (1.9 μm cylindricity) on the finished bore and the dominance by the first to third harmonics using the three-jaw fixture. The spindle synchronous radial error motion (3.2 μm cylindricity) was dominated by the fourth and higher order harmonics and matched well with the high (above the fourth) harmonics in CMM measurements (2.9 μm cylindricity). The spindle error was the dominant error source for bore cylindricity in this finish boring study, contributing to about half of the total cylindricity error.

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