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在加工螺纹孔时,一不当心,经常把丝锥断在工件里,这也是件麻烦事。这里向大家介绍一种取出断丝锥的三脚工具。供参考。三脚工具的结构如图所示,它主要是三根插条2(用弹簧钢丝或高强度的钢丝制成)。插条外圆用砂轮或锉刀加工成椭圆形,其大小正好能插入丝锥的容屑槽和工件的螺纹孔之间。插条的长度根据螺纹直径及丝锥的长度来决定。
In the processing of threaded holes, an improper, often broken in the workpiece tap, which is a troublesome thing. Here to introduce a removal of tapped three-legged tools. for reference. The structure of the three-legged tool is shown in the figure. It consists mainly of three inserts 2 (made of spring steel wire or high-strength steel wire). The outer circumference of the cutting wheel is made of an oval shape with a grinding wheel or file and is sized to fit between the chip flute of the tap and the tapped hole of the workpiece. The length of the cuttings depends on the diameter of the thread and the length of the tap.