The operation of deep hole drilling on ordinary lathes. The parts to be processed are positioned by the V-shaped iron on the large carriage of the lathe and clamped with bolt pressing plates. During drilling, the drill rod is clamped by the exclusive chuck in the spindle and rotated by the spindle, and the parts are fed and moved by the large carriage. The liquid inlet is installed on the machine operating table, and O is used.     The sealing ring is connected with the left end of the component.          

           Pressurized cutting fluid is injected from the inlet of the liquid feeder, flows into the cutting zone through the gap between the outer diameter of the drill rod and the hole wall, and cools the tool. The liquid port is discharged from the drain box. Cutting fluid can use 5% concentration emulsion; cutting dosage can be used     V = 60 ~ 90m / min, S = 0.035 ~ 0.23 mm / r. Because the drill rod is slender and easily deformed, an active center support is installed on the machine tool guide rail, which can support the drill rod at any position. The liquid feeder is connected with the large carriage by a connecting plate, and the feed movement is carried out with the components.                

           The workpiece to be processed by the deep hole drilling is held tight by the spindle box and the cone top plate of the chip collector. The device injects high-pressure cooling oil from the tail of the bit     The chips are washed by the coolant along the chip guide groove of the drill bit to the chip collector, and enter the chip collection hopper. The coolant is filtered by the filter paper and magnetically and returned to the oil tank for continued use. The chip evacuation process is that the guide sleeve when drilling is tight against the workpiece, which not only plays a guiding role, but also prevents high-pressure coolant leakage.     Sharpen.