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我厂生产ф200毫米和ф300毫米机井管。多年来在机加工车螺纹时,由于零件较大,管子的外径和螺纹外径,管箍的内径和螺纹内径的测量都很困难,生产效率低,废品率高,互换性能差。为此我们研制了如图1所示的外径百分表架和图2所示的内径百分表架,使产品质量和生产效率有了显著提高,成品率一直保持在98.5％以上,产品互换性能达百分之百。如采用这两种量具测量比较精密的零件,如柴油机的缸筒、活塞等,可装上千分表,以提高检测精度。外径百分表架的使用方法:以测量M 340×4-3
I plant production ф200 mm and ф300 mm machine tube. Over the years in the machining of car thread, due to the larger parts, the outer diameter of the pipe and the outer diameter of the thread, the inner diameter of the pipe hoop and the inner diameter of the thread are difficult to measure, low productivity, high rejection rate, poor interchangeability. To this end, we developed the outer diameter dial gauge frame shown in Figure 1 and the inner diameter dial gauge frame shown in Figure 2, the product quality and production efficiency has been significantly improved, the yield has been maintained at 98.5% or more, the product Exchange performance up to one hundred percent. Such as the use of these two gauges to measure more precise parts, such as diesel cylinder, piston, etc., can be mounted on the dial gauge to improve the detection accuracy. OD dial gauge use: To measure M 340 × 4-3