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在镗大孔时为了节约调整刀头的辅助工时,我厂工人创造了一种可调整镗刀,使用起来非常方便。镗刀的结构如附图,圆往形刀头装在刀套中,转动调整螺杆就可以调整刀头伸出的距离。在调整螺杆上有两段螺距不同的一级细牙螺纹。前端的一段1M10×1细牙螺纹与刀头的螺孔相配合,中间的一段1M22×1.5的螺纹与刀套相配合。当螺杆转一转时,由于与刀套相配合的螺纹螺距是1.5公厘,所以螺杆就前进1.5公厘。与此同时,由于刀头螺孔的螺距是1公
In the boring of the hole in order to save the knife to adjust the auxiliary working hours, I plant workers to create an adjustable boring tool, very easy to use. Boring knife structure as shown in the drawings, rounded to the knife head mounted in the knife sleeve, turn the adjusting screw can adjust the distance the blade extends. On the adjustment screw there are two different pitch thread fine thread. The front section of a 1M10 × 1 fine thread and the screw head of the bit match, the middle of a section of 1M22 × 1.5 thread and knife sleeve match. When the screw rotates one turn, the screw advances by 1.5 mm because the thread pitch that matches the sleeve is 1.5 mm. At the same time, due to the pitch of the bit head screw is 1 male