一种经济合理的内孔加工,常常需要用可以完成多种工艺的特种工具。使用这类特种工具能够节约机动时间和辅助时间,有时甚至能够省去整个加工工位。为了挖槽、加工在两个孔之间的平面、或在背面倒角,工具必须能实现使加工直径变化的径向进给运动。下面介绍几种实现径向进给的方法。 使用组合机床(由通用部件构成的机床)和自动线、以及使用全自动的自动换刀数控机床进行自动化生产时,应该充分了解和利用生产的经济性。具有轴向进给的回转式工具,如钻头、扩孔钻、铰刀、丝锥及切削头“全面”地满足上述先进指标。凡是在具有可能的、需要的和经济方面有迫切要求的地方,都应进行合理设计,使两种或多种切削工艺由一把组合 A cost-effective bore machining often requires special tools that can perform a variety of processes. The use of these special tools saves maneuvering time and auxiliary time, sometimes even eliminating the need for an entire machining station. For grooving, machining of the plane between the two holes, or chamfering on the back, the tool must be able to achieve a radial feed movement that varies the machining diameter. Here are some ways to achieve radial feed. When using a combination machine (a machine tool made of common parts) and automatic lines, and automated production using a fully automatic, automatic tool change CNC machine, the economics of production should be fully understood and utilized. Rotary tools with axial feed, such as drill bits, reamers, reamers, taps and cutting heads, “fully” meet these advanced specifications. Wherever pressing, economically desirable and economically desirable, design should be done so that two or more cutting processes are combined by a combination