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床身导轨精度包括:(1)导轨在垂直平面内全长上和一米内的不直度;(2)导轨在水平平面内全长上和一米内的不直度;(3)两导轨面间全长上和一米内的不平行度。通常简称为A、B、C三项精度。鉴于同档精度的精密水平仪难以暴露问题,且只能测量导轨在垂直平面内的不直度,而先进的测试量仪又难以推广使用,所以当前工厂里床身导轨不直度的测量,广泛采用光电准直仪。这种方法是否符合最小条件,主要取决于数据的处理方法:两导轨间不平行度通常采用精密水平仪测量。
Bed rail precision include: (1) the guide rail in the vertical plane of the total length and one meter within the non-straightness; (2) the guide rail in the horizontal plane of the total length and one meter within the non-straightness; (3) Between the full length and one meter within the non-parallelism. Usually referred to as A, B, C three precision. In view of the same precision precision level instrument is difficult to expose the problem, and can only measure the rail in the vertical plane of the non-straightness, and advanced test measuring instrument is difficult to promote the use of, so the current factory bed rail straightness measurement, extensive Using photoelectric collimator. Whether this method meets the minimum conditions depends mainly on how the data is processed: The non-parallelism between two rails is usually measured with a precision level gauge.