CNC 8035 - Programming manual - Fagor Automation

Programming manual
9.
CANNED CYCLES
G87. Face threading canned cycle
CNC 8035
·T· MODEL
(SOFT V16.3X)
·204·
A±5.5
We recommend to use low or no acceleration.
Defines the penetration angle of the tool. It is referred to the X axis and if not programmed, a value
of 30° will be taken.
If A=0 is programmed, the thread will be made with radial penetration.
If the value assigned to parameter “A” is half the tool angle, the penetration will be done rubbing
the thread’s flank.
If A is programmed with a negative value, the penetration will be done alternating the flanks of
the thread.
W±5.5
Optional. Its meaning depends on parameter "K".
If "K" has been defined, it is a thread repair cycle. It indicates the angular spindle position
corresponding to the thread measuring point.
If parameter "K" has not been defined, it indicates the angular position of the spindle
corresponding to the thread's starting point. This allows making multi-entry threads without using
the parameter "V".
The following example shows how to make a 3-entry-point thread. To do that, 3 threading canned
cycles will be programmed with the same values except for "W".
G86 X Z Q R K I B E D L C J A W0
G86 X Z Q R K I B E D L C J A W120
G86 X Z Q R K I B E D L C J A W240
V±5.5
X
J > 0 J < 0
Optional. It sets the desired number of thread entries.
J
D
(R,Q) (Xs,Zs)
If not programmed or defined with a 0 value, the thread will only have one entry.
Z
X
J
D
(R,Q) (Xs,Zs)
Z