Emco compact 8, Инструкция / Перечень запасных частей

Страница: 16 / 57

Fixed steady
The fixed steady serves predominantly as a support for
shafts on the free tailstock end. For many operations
the tailstock cannot be used as it obstructs the turning
tool or the drilling tool, and therefore must be re­
moved from the machine. It is then the fixed steady
which functions as end support ensuring a chatter-free
running of the machine. The fixed steady is mounted
on the bedway and secured from below in the desired
position by means of a locking plate. The sliding fingers
require continuous lubrication at the contact points
with the workpiece to prevent their premature wear.
Travelling steady
The travelling steady is mounted on the saddle and
thus follows the movement of the turning tool. As the
centre part of the travelling steady is always level with
the height of the tool, only two sliding fingers are re­
quired, as the place of the third is taken by the turning
tool. The travelling steady is used for turning opera­
tions on long, slender workpiei:es. It prevents "sprin­
ging" of the workpiece under the pressure of the tur­
ning tool.
The sliding fingers are set similarly to those of the fi­
xed steady, free of play, but not binding. They should
be adequately lubricated during the operation.
Setting the steady
1. Slacken the three laterally located hexagonal nuts 1.
2. Unscrew the knurled screws 3 and advance the sli­
ding fingers 2 by hand. Open the sliding fingers suf­
ficiently wide until the fixed steady can be moved
with its fingers around the workpiece. Secure the
fixed steady in its position.
3. By turning the knurled screws into position, the
sliding fingers can be set to the workpiece. They
must be applied free of play but must not be too
tight. Tighten the hexagonal nuts. Lubricate the
sliding points with machine oil.
4. When·after prolonged operating time the jaws show
wear, the tips of the fingers can be remilled or filed.
15
I
r-3