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我厂制成内螺纹千分尺,解决了公制大直径内螺纹的测量(外螺纹可用三线法测量),为车制大直径内螺纹提供了经济可靠的测量方法。一、大直径内螺纹千分尺的提出过去加工大直径的内螺纹通常是设计大型螺纹量规来解决测量问题。随着产品不断增加和发展,就需制造许多螺纹环规和塞规。而且这种大直径螺纹量规体积大、重量重、造价昂贵,使用不便,保管困难。这样给生产带来许多困难。为了解决对大直径内螺纹检测的这些困
I made the factory thread micrometer, to solve the measurement of large-diameter metric thread (external thread can be measured by three-wire method), for large-diameter car thread provides an economical and reliable measurement methods. First, the large-diameter internal thread micrometer proposed in the past processing large-diameter internal thread is usually designed to measure large thread gauge to solve the problem. As products continue to grow and develop, many threaded ring and plug gauges are required. And this large diameter thread gauges bulky, heavy weight, expensive, inconvenient to use, storage difficulties. This brings many difficulties to production. In order to solve these large diameter thread detection of these sleepy