IEMCA BOSS 542 CNC, Manual For Use And Maintenance

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28
3
OPERATION INFORMATION
302.035
It sets the point where advanced half bush opening
occurs at bar-pusher passage with respect to the
point
Bo (half bushes opening point).
The default setting should not normally be modified;
there are cases, however, where it can be useful to
increase this value to prevent bar vibrations.
It sets the point where half bush closing oc-
curs during the facing stroke. It is a dimen-
sion referred to point
C
(facing point).
Controls the time of impulse ON, received by the lathe to turn the spindle.
It makes the shaped bar entry into collet easier.
Description of phases:
– the bar is fed along the slowing down section (parameter 10) ;
– the bar meets with the obstacle (collet) and the lathe receives the impulse to turn the spindle, according to the
time previously entered;
– the spindle slows down and stops (according to the time entered into
parameter 18
);
– the bar receives the feeding impulse;
– if the bar enters into collet, the cycle continues;
– otherwise, all phases previously described are to be repeated
15
Phase Default
80 mm
machining : > ( mm )
n o . 1 5 b u s h o p e n i n g
parameter 15
35.004 Ec.0
16
Phase Default
bar
change
over
150 mm
: > ( mm )
n o . 1 6 b u s h i n g c l o s i n g
parameter 16
35.005 Ec.0
17
Phase Default
bar
change
over
0 sec.
: > ( s e c )
n o . 1 7 s p i n d l e i m p u l s e s
o n