The workbench as a longitudinal, transverse and vertical feed movement of milling machine. Lift milling machine is used for machining medium and small parts of plane, groove, spiral surface or forming surface, etc., there are mainly three universal type, horizontal and vertical.
(1) universal lift milling machine: the lathe bed and the base are linked together, lifting table installed on the base of the vertical screw drive, along the vertical lathe bed guide rail (see machine tool guideway) lift (see chart). Wagen can guide for the transverse feed along the lift tables. Machine has two layers of workbench, the workbench is installed on the sliding saddle, within the scope can be plus or minus 45 ° in the plane of the rotating Angle. On the workbench for installation of the workpiece, can make the longitudinal feed along the table guideway. The top of the bed have a retractable hang beam, the bearing spindle. Workstation installation after universal dividing head can be carried out on the workpiece and milling spiral groove, etc.
(2) horizontal knee milling machine: can’t rotary table, the rest is the same as the universal lift milling machine.
(3) vertical milling machine: of vertical spindle is set, the rest is similar to horizontal knee milling machine.
Lifting of the milling machine main forms are: universal turret milling machine, the spindle can be adjusted to any Angle, to adapt to the processing needs; Copying milling machine, with copying device, used for processing forming surface; Program control milling machine, with high automation level, and can realize different functions of automatic processing cycle; Numerical control milling machine, which can realize point and continuous trajectories of automatic processing, used for machining complex forming on the surface.