MOUNTING DATA:
1. NOSE PIECE: Automatic mechanical/air-feed drills,
tappers and back spotfacers are equipped with either a
short or a long nose piece depending upon the length of the
cutting tool holding device - i.e. drill chuuk, tap chuck, morse
taper adapter, etc.
2. REDUCER BUSHING: Reducer bushings are
occasionally used to reduce the thread size in a specific
nose piece to adapt it to accommodate smaller thread drill
bushing tips.
3. DRILL BUSHING TIPS: Close fit between mating the shank of tip and the hole in the lock liner bushing holds tool alignment to produce straight close-tolerance holes
4. LOCK LINER AND LOCK NUT: This is a conventional
method for automatic, mechanical/air feed drills, tappers
and back spotfacers to a jig face or fixture. A hole is bored
in the jig to accommodate the lock liner bushing (4A). The
lock nuts (4B) hold the lock liner in position in the jig.
5. DIRECT JIG MOUNTING: An Alternate mounting
method for holes so closely spaced that a lock liner
bushings cannot be used has lock screws mounted directly in the jig. The shank of the drill bushing tip fits directly into
the bored hole in the jig. Hardened headless liner bushings
are available to press into the bored hole to provide a
wearing surface and prolong the useful life on the jig.
6. LOCKING STRIP MOUNTING: A second mounting
option for closely spaced holes employs a lock strip along
each side of the row of holes in the jig. The flanges on the
drill bushing tip lock under the extended edges of the lock
strips when the tip is turned 30º to the left. Headless liner
bushings pressed into the bored holes in the jig are
recommended to forestall wear in the bored holes.
PREV <
1
2
3
> NEXT
