对于同轴度的检验,小孔零件可固定在方箱上翻转测量;孔径较大的零件(孔径100mm)不便于翻转,可采用穿心轴的方法进行同轴度的检验;当孔径超过100mm时,心轴很难穿入且易破坏孔径表面质量,这时通常采用三坐标机测量同轴度,由于被测孔径的表面质量对三坐标机的触头影响较大,甚至影 For the inspection of coaxiality, the small hole parts can be fixed on the square box to turn the measurement; larger parts (100mm diameter hole) is not easy to flip, the method can be used to test the coaxial shaft; when the hole diameter exceeds 100mm When the mandrel is difficult to penetrate and easy to damage the surface quality of the aperture, then usually coordinate measuring machine coaxiality, as the measured aperture surface quality of the greater impact of the three-coordinate machine contacts, or even shadow