12
Apron
The apron (A, Fig. 10) is mounted to the
carriage. In the apron a half nut is fitted. The
half nut gibs can be adjusted from the outside.
The half nut is engaged by use of a lever. Quick
travel of the apron is accomplished by means of
a bed-mounted rack and pinion, operated by a
hand wheel on the front of the apron.
Tailstock
The tailstock (B, Fig. 10) slides on a v-way and
can be locked at any location by a clamping
lever. The tailstock has a heavy-duty spindle
with a Morse Taper #3.
Leadscrew and Feed Rod
The leadscrew (C Fig. 10) and feed rod (D, Fig.
10) are mounted on the front of the machine
bed. They are connected to the gearbox at the
left for automatic feed and lead. They are
supported by bushings on both ends. Both are
equipped with brass shear pins.
Gear Box
The gear box (E, Fig. 10) is made from high
quality cast iron and is mounted to the left side
of the machine bed.
Steady Rest
The steady rest (F, Fig. 10) serves as a support
for shafts on the free tailstock end. The steady
rest is mounted on the bedway and secured
from below with a bolt, nut and locking plate.
The sliding fingers require continuous lubrication
at the contact points with the workpiece to
prevent premature wear.
Follow Rest
The traveling follow rest (G, Fig. 10) is mounted
on the saddle and follows the movement of the
turning tool. Only two fingers are required as
the turning tool takes the place of the third. The
follow rest is used for tuning operations on long,
slender workpieces. It prevents flexing of the
workpiece from the pressure of the cutting tool.
The sliding fingers are set similar to the steady
rest, free of play, but not binding. The sliding
fingers require continuous lubrication at the
contact points with the workpiece to prevent
premature wear.
Содержание BDB-1340A
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