用水平仪测量2m长的导轨在垂直平面内的直线度误差,测量时水平垫铁长200mm,测得以下10挡读数,求导轨全长上的直线度误差。+0.04mm/1000mm,+0.03mm/1000mm,+0.02mm/1000mm,+0.02mm/1000mm,+0.02m

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问题 用水平仪测量2m长的导轨在垂直平面内的直线度误差,测量时水平垫铁长200mm,测得以下10挡读数,求导轨全长上的直线度误差。+0.04mm/1000mm,+0.03mm/1000mm,+0.02mm/1000mm,+0.02mm/1000mm,+0.02mm/1000mm,+0.01mm/1000mm,0,-0.01mm/1000mm,-0.01mm/1000mm,-0.02mm/1000mm。

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答案(1)将原始读数换算成与测量工具相适应的斜率值,即+0.008mm/200mm,+0.006mm/200mm,+0.004mm/200mm,+0.004mm/200mm,+0.004mm/200mm,+0.002mm/200mm,0,-0.002mm/200mm,-0.002mm/200mm,-0.004mm/200mm [*]16 (5)导轨全长的最大直线度误差为 δ=|Hmax-Hmin|=0.016mm 导轨全长上的直线度误差为0.016mm。

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