• Title/Summary/Keyword: Cross rail Z-axis

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A Study on the Z axis Defection Compensation of the Cross rail for Gantry type Machine tools (Gantry Type 공작기계의 CROSS RAIL Z축 처짐량 보상에 관한 연구)

  • Lee, Min-Ki;Park, Jin-Joo;Lee, Eung-Suk;Kim, Nam-Sung
    • Journal of the Korean Society of Manufacturing Technology Engineers
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    • v.20 no.3
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    • pp.357-360
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    • 2011
  • Machine tools of Gantry type have been performing machine work as a moving machinery. In a large machine tools, the machinery is moving with bed and it is structurally unstable. When the objects are processed, machine tools gets loads in the direction of Z-axis. In other words, the machine tools which become bigger was performed by the trend of complexation. It made that the increased machine weight can't be passed over. In order to enhance manufacturing precision, it needs to compensate Z-axis deflection of weight for machine tools. In this paper, Machine tools of Gantry type were miniaturized and deflection was measured by LVDT sensors. When deflection was measured, block mass weighted 50kg is moving on particular distance. Then, the displacement of fixed point and moving point is measured by recording telemeter.