CNC VERTICAL SPINDLE
tool change, the toolholder is removed from the chuck
and a toolholder containing the next required tool is
installed in its place. Many varieties of quick-change
Many of the CNC vertical spindle milling machines
tool systems are available on the market.
being introduced to the Navy today are similar to the
Since this is only a brief overview, we will not
discuss each part of the machine. Refer to your
milling machine that has an onboard computer to
machine's technical manual for more information.
control its motion. Most of these machines are manu-
factured with what is known as an R-8 spindle taper that
employs a quick-change tool system.
The quick-change tool system consists of a quick
release chuck (which is held in the spindle) and a set of
toolholders that hold the individual tools needed for a
engine lathes. The lathe carriage rests on the ways. The
particular part program. The chuck is a separate tool-
ways are in the same plane and are parallel to the floor.
holding mechanism that stays in the spindle. During a
On other CNC lathes, the turret tool post is mounted on