Figure 11-1.--CNC vertical spindle milling machine.
machines are not simply CNC machines, but are CNC
turning centers. Turning centers may have one or more
With the rapid development of machining
turret-type toolholders or have an automatic tool change
technology in the last few years, many new types of
system. For illustration purposes we will discuss a CNC
CNC machines have been introduced. Many of these
vertical milling machine and a CNC lathe.