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螺旋推铰刀是一种孔的精加工刀具,目前,我国已有工厂使用,但不够广泛。其主要原因是由于该刀具制造较困难,缺乏从设计到工艺理论上的研究,且当设计与制造不当时使得加工孔的质量不够稳定。我们曾对螺旋推铰刀的几何参数及切削用量诸因素对被加工孔的表面质量的影响进行了试验研究,在这个基础上结合工厂实际应用情况,设计编制了常用螺旋推铰刀的几何角度及尺寸系列,对螺旋推铰刀的制造也有必要的说明。试验表明,该刀的铰孔光洁度可稳定在▽_7,高可以达到▽_8～▽_9,与直刃铰刀比
Spiral push reamer is a hole finishing tool, at present, our factory has been used, but not broad enough. The main reason is due to the tool manufacturing more difficult, the lack of theoretical research from design to process, and when the design and manufacture of the hole made when the quality is not stable enough. We have carried out a pilot study of the geometric parameters of the screw-driven reamer and the effect of cutting factors on the surface quality of the machined hole. Based on this, combined with the practical application of the factory, we designed the geometric angle of the commonly used screw-driven reamer And the size of the series, the manufacture of spiral reamer also have the necessary instructions. Experiments show that the knuckle finish of the knife can be stabilized at ▽ _7, high can reach ▽ _8 ~ ▽ _9, and straight edge reamer ratio