Fagor 8055 EN, Programming Manual

Page: 204 / 482

·204·
Programming manual
CNC 8055
CNC 8055i
9.
CANN
ED
CYCLES
·M· & ·EN· M
ODELS
S
OFT
: V02.2
X
G2
12. Outside
threa
d
mi
llin
g
cycl
e
9.18.1 Basic operation
1. Rapid movement to the center of the hole (X, Y).
2. Rapid movement to the reference plane (Z).
3. Rapid movement of the plane axes to the thread entry point (it only makes this movement if
parameter E has been programmed).
4. Rapid movement to the thread entry point coordinate along the longitudinal axis.
5. Rapid movement to the thread entry point (movement interpolated in 3 axes).
6. Thread entry with a helical movement tangent to the first helical threading path.
7. Making the thread according to the value of parameter C.

If C=0:
·1· Helical movement, in the direction indicated in parameter J, to the bottom of the thread
(the movement will only be one revolution).
·2· Helical thread exiting movement, tangent to the previous helical path.
It must be borne in mind that in the exit tangent to the helical path, the exit point will exceed
the coordinate of the bottom of the thread along the longitudinal axis.

If C=1:
·1· Helical movement, with the pitch and direction given in parameter J, to the bottom of the
thread.
·2· Helical thread exiting movement, tangent to the previous helical path.
It must be borne in mind that in the exit tangent to the helical path, the exit point will exceed
the coordinate of the bottom of the thread along the longitudinal axis.

If C=n:
·1· Helical movement, with the pitch and direction given in parameter J, (the movement will
be one revolution).
·2· Helical thread exiting movement, tangent to the previous helical path to the thread entry
point.
·3· Rapid movement to the Z coordinate of the thread entry point of the next threading path.
·4· Repetition of the previous 3 steps until reaching the bottom of the thread. It must be borne
in mind that in the last helical exit, the exit point will exceed the coordinate of the bottom
of the thread along the longitudinal axis.
8. Rapid movement to the reference plane (G99).
9. Repetition of steps 3 to 8 until reaching the depth of the finishing stock.
10. Repetition of steps 3 to 8 until reaching the bottom of the thread.
11. Rapid movement to the reference plane (G99) or to the starting plane (G98).
12. Rapid movement to the center of the hole (X, Y).