The requirements of high-speed cnc machining center for spindle

The high-speed spindle of the precision turning profile machining center should have the characteristics of high precision, good rigidity, stable operation and small thermal deformation.　　 There are several types of spindles that are more popular in precision turning and profile machining centers: belt type, gear type, direct drive type and electric spindle.　　Precision machining centers can use direct-drive spindles and electric spindles, and the remaining spindles basically cannot meet the basic speed requirements of high-speed cnc machining centers. The minimum spindle speed of the high-speed cnc machining center cannot be lower than 10000rpm. Such a high speed can basically only be achieved by direct-drive spindles and electric spindles. The maximum speed of the direct-drive spindle is not as high as that of the electric spindle. In foreign countries, some high-speed CNC machining center manufacturers have developed precision machining centers. It is very simple for the spindle speed of the precision turning processing profile machining center to exceed 100,000, but we all It is known that the higher the spindle speed, the less the cutting force, so the cutting force of the direct-coupled spindle is far better than that of the electric spindle.