HEIDENHAIN iTNC 530 (60642x-04) Cycle programming - Manual (Page 106)

106 Fixed Cycles: Tapping / Thread Milling
4.2 T
A
PPING NEW with a Floating
T
a
p Holder (Cy
c
le
206, DIN/ISO:
G206)
Cycle parameters
 Set-up clearance Q200 (incremental): Distance
between tool tip (at starting position) and workpiece
surface. Standard value: approx. 4 times the thread
pitch. Input range 0 to 99999.9999; alternatively
PREDEF
 Total hole depth Q201 (thread length, incremental):
Distance between workpiece surface and end of
thread. Input range -99999.9999 to 99999.9999
 Feed rate F Q206: Traversing speed of the tool during
tapping. Input range 0 to 99999.999; alternatively
FAUTO
 Dwell time at bottom Q211: Enter a value between 0
and 0.5 seconds to avoid wedging of the tool during
retraction. Input range 0 to 3600.0000; alternatively
PREDEF
 Coordinate of workpiece surface Q203 (absolute):
Coordinate of the workpiece surface. Input range
-99999.9999 to 99999.9999
 2nd set-up clearance Q204 (incremental): Coordinate
in the spindle axis at which no collision between tool
and workpiece (fixtures) can occur. Input range 0 to
99999.9999; alternatively PREDEF
The feed rate is calculated as follows: F = S x p
Retracting after a program interruption
If you interrupt program run during tapping with the machine stop
button, the TNC will display a soft key with which you can retract the
tool.
Danger of collision!
Enter in MP7441 bit 2 whether the TNC should output an
error message (bit 2=1) or not (bit 2=0) if a positive depth
is entered.
Keep in mind that the TNC reverses the calculation for pre-
positioning when a positive depth is entered. This
means that the tool moves at rapid traverse in the tool axis
to set-up clearance below the workpiece surface!
Enter in MP7441 bit 0 whether the TNC should output an
error message (bit 0=0) or not (bit 0=1) if spindle rotation
is not active when the cycle is called. The function also
needs to be adapted by your machine manufacturer.
Beispiel: NC blocks
25 CYCL DEF 206 TAPPING NEW
Q200=2 ;SET-UP CLEARANCE
Q201=-20 ;DEPTH
Q206=150 ;FEED RATE FOR PLNGNG
Q211=0.25 ;DWELL TIME AT DEPTH
Q203=+25 ;SURFACE COORDINATE
Q204=50 ;2ND SET-UP CLEARANCE
Z
X
Q203
Q200
Q201
Q211
Q206
Q204
F: Feed rate (mm/min)
S: Spindle speed (rpm)
p: Thread pitch (mm)