The milling head part is composed of two parts: a stepped (or stepless) gearbox and a milling head. The spindle of the milling head is supported on high-precision bearings. Ensure the spindle has high rotation accuracy and good rigidity; the spindle is equipped with a quick tool change nut, and the front cone adopts a taper of 1$0505; the spindle adopts a mechanical stepless speed change, and its adjustment range is wide, the transmission is stable, and the operation is convenient. The braking mechanism can quickly brake the main shaft, which can save auxiliary time. When braking, the main shaft can be braked immediately by opening the stop ring through the brake handle. When starting the main motor, pay attention to loosening the spindle brake handle. The milling head part is also equipped with a servo motor, an internal toothed pulley, a ball screw pair and a spindle sleeve.
The worktable and the saddle are supported on the wide horizontal guide rail of the lift table, and the longitudinal feed of the worktable is driven by a servo motor installed at the right end of the worktable. The precision ball screw is driven by the internal toothed pulley, so that the table can be fed longitudinally. The left end of the table is equipped with a hand wheel and dial for manual operation. The vertical and horizontal guide rail surfaces of the saddle are all coated with TuRcllE B plastic surface, which improves the wear resistance of the guide rail, the stability of movement and the retention of precision, and eliminates the phenomenon of low-speed crawling.