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复合刀具是把两件或两件以上同类或不同类的刀具组合起来的刀具。在成批生产中使用它可以大大地提高生产效率。我厂工人朱恒同志,在大闹技术革命运动中,运用了钻头和丝锥组成的复合刀具,大大地提高了生产效率,现在,把它介绍如下。复合刀具的结构如附图所示,刀具是由钻头、丝锥和尾部的莫氏锥体三部份组成。 1.钻头部份:钻头直径d等于被加工工件螺孔的底径尺寸。以攻M20螺丝孔为例,加工铸铁d=17.1公厘。钻头长度L=工件厚度十15～20公厘,其中15～20公厘为攻丝时停止自动进刀的间隙长度。 2.丝锥部份:可以按标准机用丝锥设计,但是丝锥的槽的数目要用偶数,一般
Composite tools are two or more than the same or different types of tools combined tool. Using it in mass production can greatly increase production efficiency. Comrade Zhu Heng, our factory worker, used the compound cutter consisting of bit and tap in the slaughtering of technical revolution movement, which greatly enhanced the production efficiency. Now, introduce it as follows. Compound cutter structure as shown in the figure, the tool is a drill, tap and tail Morse cone three parts. 1. Drill part: Drill diameter d is equal to the bottom diameter of the workpiece to be machined. To attack M20 screw hole, for example, cast iron d = 17.1 mm. Bit length L = thickness of the workpiece 15 to 20 mm, of which 15 to 20 mm for tapping the gap to stop the automatic feed length. 2. Taps part: You can press the standard machine tap design, but the number of taps to use an even number, generally