• Title/Summary/Keyword: DBB(double ball bar)system

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A Study on the Measurement of Motion Accuracy for Feed Drive System of Multi-task Machine Tool (복합공작기계의 이송계 운동정밀도 측정의 연구)

  • Ko, Hai-Ju;Jung, Yoon-Gyo
    • Journal of the Korean Society of Manufacturing Process Engineers
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    • v.6 no.3
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    • pp.112-118
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    • 2007
  • Recently, the machine tools called multi-task machines, which mounted rotary axes on the table or spindle are used increasingly. Accordingly, multi-task machine tool takes a growing interest on the motion accuracy of feed drive system. In this study, measurement and diagnosis of motion errors ware attempted from circular pattern obtained by using DBB (Double ball bar) device. Those were obtained at both clockwise and counter clockwise motions in mutually perpendicularly intersecting three planes. The reliability of error measurement system for multi-task machine tool was verified by the direct test cutting.

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A Study on the Measurement of Motion Accuracy for Feed Drive System of Multi-task Machine Tool (복합공작기계의 이송계 운동정밀도 측정의 연구)

  • Ko, Hai-Ju;Jung, Yoon-Gyo
    • Journal of the Korean Society of Manufacturing Process Engineers
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    • v.6 no.3
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    • pp.31-37
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    • 2007
  • Recently, the machine tools called multi-task machines, which mounted rotary axes on the table or spindle are used increasingly. Accordingly, multi-task machine tool takes a growing interest on the motion accuracy of feed drive system. In this study, measurement and diagnosis of motion errors ware attempted from circular pattern obtained by using DBB (Double ball bar) device. Those were obtained at both clockwise and counter clockwise motions in mutually perpendicularly intersecting three planes. The reliability of error measurement system for multi-task machine tool was verified by the direct test cutting.

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The Development of An Error Measurement System of 5-Axis Mill & Turn Machine Tool by Double Ball Bar Test (DBB를 이용한 5축 복합가공기의 오차 측정 시스템 개발에 관한 연구)

  • Kim T.H.;Jung Y.G.;Ko H.J.
    • Proceedings of the Korean Society of Precision Engineering Conference
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    • 2006.05a
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    • pp.243-244
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    • 2006
  • In this paper, the development of an error measurement system of 5-axis mill & turn machine tool presented by double ball bar test, which has been widely used to measure the overall accuracy of machining center. and the reliability of an error measurement system of 5-axis mill & turn machine tool was secured by the direct cutting test.

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A Study on Algorithm of Checking Errors in Assembly Process of Feed Drive system in NC Machine Tools (NC공작기계 이송기구의 조립시 발생하는 결함의 발견)

  • Park, Jong-Bong
    • Journal of the Korean Society of Industry Convergence
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    • v.4 no.2
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    • pp.141-147
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    • 2001
  • This paper presents a developing algorithm of checking errors of feed mechanism in the NC machine tool with DAC method. It is useful to check static and dynamic rigidity with relation between lost motion and current of rotor. For checking error of feed in assembly tuning with machining center proposed checking algorithm is useful.

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