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符合要求的内径表定中心支架两支承面对测量轴线的位置应等分,这样在测量中能够保证孔径尺寸是在通过直径的方向上测径的,因此在修理前应检查定中心支架,找出不对称性引起的误差。一、检查首先,将内径表放入合适的环规内,在环规轴向截面内摆动内径表,找出百分表的最大示值,对好百分表零位。然后,在垂直于环规轴向截面的截面内,平行移动内径表,观察百分表指针变化情况,如果支架符合要求,百分表指针会顺时针转动,如果支架不符
Meet the requirements of the inner diameter of the centering table The two bearing surface of the measuring axis should be equally divided, so in the measurement to ensure that the aperture size is measured in the direction of diameter diameter, so check the centering bracket before the repair to find Errors caused by asymmetry. First, the inspection First of all, the inner diameter of the gauge into the ring within the ring in the axial section of the inner diameter swing table to find out the maximum indicator dial indicator, good dial zero. Then, in the cross-section perpendicular to the axial cross-section of the ring gauge, move the inner diameter gauge in parallel and observe the change of the dial indicator. If the holder meets the requirements, the dial indicator rotates clockwise. If the holder does not match