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等高度、垂直度、同轴度 (1)等高度的检验在机床精度标准中,等高度是指轴线(或回转中心线),在其规定的位置上到基准面的距离变化。它可以是两轴线(或回转中心线)在其规定的位置上对某一基准平面的等距度,也可以是同一轴线随部件回转到不同位置时对其回转平面的等距度。在垂直平面内的等距度,我国机床精度标准中一般称为等高度。其允差有时方向性要求,如车床主轴
Equal height, squareness, concentricity (1) Equal height test In machine tool accuracies, contouring refers to the variation of the axis (or swivel center line) at a specified distance from the datum plane. It can be two axes (or center line of rotation) in its specified position for a reference plane equidistance, it can be the same axis with the component back to a different position of its plane of rotation equidistance. In the vertical plane of the equidistance, China’s machine tool precision standards generally known as contour. Its tolerance sometimes directional requirements, such as lathe spindle