原文详细地介绍了芜湖液压件厂应用可调式喷吸深孔钻加工深孔的实践经验。对该钻头的喷吸效应原理作了论述,如图所示:当冷却液进入喷吸钻后,一股油从内管外壁的同心圆环经过内管尾部的月牙形喷嘴,高速喷射进内管尾端,使内管中形成负压。另一股正压油经过内、外管之间的同心圆环及钻头体槽孔从外管出口处喷向钻头切削区,起冷却和润滑作用然后带着切屑从内管流回油箱。前后压差使喷嘴里产生 The paper detailedly introduces the practical experience of application of adjustable deep-hole drilling deep hole processing in Wuhu Hydraulic Factory. As shown in the figure: When the coolant into the jet drill, an oil from the outer wall of the inner tube concentric ring through the inner tube rear crescent-shaped nozzle, high-speed jet into the interior Tube end, the negative pressure in the inner tube. The other positive pressure oil passes through the concentric ring between the inner and outer tubes and the bit body slot to be jetted from the outlet of the outer tube to the cutting zone of the drill bit for cooling and lubrication and then flows back to the tank with chips from the inner tube. Differential pressure before and after the nozzle to produce