Application of NC
NC has been used in a variety of applications. Acomplete
list of application is probably not possible but such a list would have
to include the following:
By far the most common application of the numerical control
is for metal cutting machine tools. Within the category alone,NC equipment
has been built to perform virtually the entire range of material removal
Metal cutting machine tools
Pressworking machine tools
Automated knitted machines
Some numerical control application is illutrated below :
Drilling and related operation
The versatility that can be aquired by combining NC with
metal cutting machine tools is best represented by the NC Machining Center.
The machining center incorporates several time saving features into one
machine tool to achive a high level of automated yet flexible production.
First a machining center is capable of performing a variety of different
operations: drilling,tapping,reaming,milling and boring. Secong it has
the capacity to change tools automated under tape command. A variety of
machining operations means that variety of cutting tools are required The
tools are kept in a tool drum or the other tool holding device . When the
tape calls a particular tool the drum rotates to position the tool for
insertion into the spindle. The automatic tool changer then grasps
the tool and places it into the spindle chuck.