The machine tool beds of this kind adopt the integrated stand form and its guide rails adopt the combined rectangular bar and w-shape bar, with a width of 610mm. The machine tool is of a stronger torsion strength and good rigidity and the CNC heavy cutting can be realized. The main motor of the machine tool adopts the high-performance servo spindle motor with a speed of 10-800r/min,upon which the stepless speed regulation and constant-speed cutting can be realized, with a smaller temperature rise and thermal distortion .The spindle is of axis-C function for an indexing precision of 3’. The lower slide equipped with the lifting mill paring power head, whose spindle is driven by the variable-frequency electric motor. The speed of mill head spindle is changed by adjusting the frequency of the electric motor to meet the cutting needs so as to realize the complex machining operation of the machine tool through the one-off chucking to reach user’s target of one machine for multiple purpose .The timing and quantitative automatic positive displacement lubrication system of centralized oil supply is applied to this machine tool, which can ensure the sufficient lubrication of any lubricating part.
This machine tool is applicable to the cutting machine operation of inner circle, end, tapered surface, screw thread, groove and chamfer, and the automatic positioning of the mill carriage and the continuous processing of multiple working procedures. The CNC system can store the processing and machining procedures of multiple spare parts, with a convenient selection and operation. It is particularly to the machining operation of shaft-type, tray-type and sleeve-type spare parts. It is of a stronger applicability to the frequent and progressive machining operations of similar spare parts of small or middle batches, multiple varieties and multiple specifications .Because it is equipped with the mill paring power head, it can realize the one-off shaped machining operation of key groove, ring groove or spiral groove on the shaft-type spare parts.
The machine tool is characterized by a bigger power and good rigidity of the complete machine, novel and reasonable structure, beautiful appearance, convenient and flexible operation, wide usage. The size precision of the machined spare parts reaches IT7 and its surface roughness-Ra ≤3.2um.
