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我厂是生产机井管的专业厂,在生产φ300mm和φ200mm两种机井管时,由于工件口径较大,用千分尺三针测量法测量小滚针极易脱落,既浪费时间又不易量准。为了提高产品质量,我们研制了外螺纹中径千分表架和内螺纹中径千分表架,比以往用三针测量法和用购买的螺纹千分尺都快很多,测量精度和准确度都较高。成品率一直保持在99.5％以上,产品互换性能达100％。
I plant is the production of professional wells machine tube factory in the production of φ300mm and φ200mm two machine tube, due to larger workpiece diameter, with a micrometer three-pin measurement of small needle easily fall off, not only a waste of time but not easy to measure. In order to improve the quality of products, we have developed the outer diameter micrometer dial gauge frame and the inner diameter micrometer gauge stand, than the past with the three-pin measurement method and purchased by the screw micrometer are much faster, the measurement accuracy and accuracy are more high. Yield has remained above 99.5%, product interchangeability up to 100%.