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对某些进口的万能工具显微镜,可利用杠杆千分表代替光学灵敏杠杆,以测量大直径大螺旋角的螺纹与蜗杆的螺距和半角。现以30°梯形螺纹为例,其方法和步骤如下: 1.将杠杆千分表用自制卡箍固定在万工显的物镜头上,使测头垂直向下。万工显的立柱应对零,即处于垂直位置。 2.用量块调整杠杆千分表测头,使测头中心与顶针中心等高,固定立柱上的紧固螺钉。在整个测量过程中,测头不得上下移动。 3.向前移开测头,将被测螺纹制件,顶在万工显的顶针上并加以固定。这样即可进行测量。
For some imported universal tool microscopes, lever gauges can be used instead of optical sensitive levers to measure the pitch and half-width of threads and worms for large, large helix angles. Now 30 ° trapezoidal thread, for example, the method and the steps are as follows: 1. The lever dial gauge with a homemade clamp in the million workers were observed in the lens, the probe down vertically. Wan Gong significant columns to deal with zero, that is in a vertical position. 2. Adjusting the lever gauge dial gauge probe, the probe center and thimble center height, the fastening screws on the fixed column. During the entire measurement, the probe must not move up and down. 3. Move the stylus forward to position the threaded part under test and attach it to the thimble on which it is made. This can be measured.