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我厂某产品需要在内孔中开凹槽(?)23.5~(+0.06)mm,用一些专用量具也无法得到凹槽的实际尺寸。为此,我们改制了一把内量爪已损坏的卡尺(见图)来测量,其分度值为0.02mm,测量范围:为0～125mm。经车间使用,效果良好。改制的具体方法是:根据孔径大小确定圆柱内量爪尺寸(最好取整数,以便于计算),打磨深度应根据凹槽位置来确定,去掉图中虚线的刃口部分(如槽的位置深则可适当保留)。圆柱内量爪的厚度和测量面的深度须小于凹槽尺寸。
I plant a product need to open the groove in the groove (?) 23.5 ~ (+0.06) mm, with some special measuring tools can not get the actual size of the groove. To this end, we have adapted a gauge caliper that has been damaged (see photo) to measure, with an index of 0.02 mm and a measuring range of 0 to 125 mm. After the workshop, the effect is good. Restructuring the specific method is: According to the size of the aperture to determine the size of the cylinder within the size of the claws (preferably integers, in order to facilitate the calculation), sanding depth should be determined according to groove position, remove the dashed edge of the figure (such as groove depth May be properly retained). The thickness of the inner cylinder claw and the depth of the measuring surface shall be less than the groove size.