Position-dependent geometric errors measurement and identification for rotary axis of multi-axis machine tools based on optimization method using double ball bar

Peng, Weichao; Xia, Hongjian; Chen, Xindu; Lin, Zhongqin; Wang, Zhifeng; Li, Haiyan

doi:10.1007/s00170-018-2583-8

Cited by 12 publications

(2 citation statements)

References 28 publications

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“…Many researchers have studied the composition of the motion error and believe that geometric errors are the most important part [7,8]. Therefore, in recent years, many scholars have performed much research on geometric errors [9][10][11][12][13]. At present, special equipment such as laser interferometers and double ball bars (that is, the 'telescoping ball bar' defined in the ISO/TR 230-11:2018 standard, referred to as DBBs.)…”

Section: Introductionmentioning

confidence: 99%

A novel method for measuring radial and axial errors in a cylindrical coordinate system using a combined double ball bar

Sun

Wang

et al. 2023

Meas. Sci. Technol.

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Multiaxis machine tools are widely used in manufacturing. The measurement of motion error is important to improve the machining accuracy of machine tools. A double ball bar (DBB), as a high-precision single-dimensional position reading device, is widely used to measure the motion error of the circular path of machine tools. However, the motion errors contain the cylindrical radial and axial errors with respect to the circular path plane. Therefore, the measurement results of the DBB are incomplete because they do not contain axial errors. To measure the motion error of the circular path accurately, completely and concisely, a novel measurement method based on the combined double ball bar (C-DBB) is proposed in this paper, which can directly measure the radius and axial motion error of the circular path in one measurement. First, the measuring principle of the C-DBB method is introduced, and the measurement model of the radius and axial motion error of the circular path is established. Then, a measuring device using the C-DBB method was designed based on the lever principle, and the error parameters of the designed device were analyzed. According to the error analysis results, the measurement results of the C-DBB method were compensated and corrected. Finally, the C-DBB method is used to measure the circular path on the vertical CNC milling machine, and the results are compared with the measurement results using the DBB method. It is shown that the proposed C-DBB method can obtain high-precision multidimensional motion error in a single measurement, and the designed measuring device based on the C-DBB method has high repeatability and good circular path measuring ability. The proposed method provides an effective method for machine tool multidimensional motion error measurement and compensation.

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Section: Introductionmentioning

confidence: 99%

A novel method for measuring radial and axial errors in a cylindrical coordinate system using a combined double ball bar

Sun

Wang

et al. 2023

Meas. Sci. Technol.

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“…In terms of the measurement instrument of geometric error, Chen used an auto-tracking laser interferometer to measure the geometric error of machine tools [18]. Peng used a double ball bar to measure geometric errors of the rotary axis on a multi-axis machine tool based on kinematic analysis [19][20][21]. Ibaraki used a laser scanning device to analyze sensitivity of machine geometric errors measurement [22,23].…”

Section: Introductionmentioning

confidence: 99%

Coupling and Decoupling Measurement Method of Complete Geometric Errors for Multi-Axis Machine Tools

et al. 2020

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Precision and ultra-precision machining technology rely mainly on the machine tools’ accuracy. To improve it, the measurement, calculation, prediction and control of geometric errors are critical. The traditional measurement methods have lower precision because of ignoring small angle errors. To obtain complete geometric errors of multi-axis machine tools, this paper proposes a new method of coupling and decoupling measurement. Specifically, we used a laser interferometer and dial indicators to measure 36 items of complete geometric errors of multi-axis machine tools. A homogeneous transformation matrix (HTM) was applied to model the error transfer route. The transfer law of complete errors for each machining point was explored and derived. Furthermore, we selected and calculated integrated errors of 36 machining points. Finally, we proved the correctness of the method by comparing the measurement result of a ball bar test and coupling and decoupling measurement of geometric errors. We found that items of small geometric angle errors have a greater impact on machining accuracy than those of geometric displacement errors. Complete geometric errors measured via the coupling and decoupling measurement method can evaluate integrated errors more precisely and comprehensively.

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Identification and compensation of position-dependent geometric errors of rotary axes on five-axis machine tools by using a touch-trigger probe and three spheres

Chen

Liu

et al. 2019

Int J Adv Manuf Technol

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Position-dependent geometric errors measurement and identification for rotary axis of multi-axis machine tools based on optimization method using double ball bar

Cited by 12 publications

References 28 publications

A novel method for measuring radial and axial errors in a cylindrical coordinate system using a combined double ball bar

A novel method for measuring radial and axial errors in a cylindrical coordinate system using a combined double ball bar

Coupling and Decoupling Measurement Method of Complete Geometric Errors for Multi-Axis Machine Tools

Identification and compensation of position-dependent geometric errors of rotary axes on five-axis machine tools by using a touch-trigger probe and three spheres

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