HEIDENHAIN iTNC 530 (340 420) User Manual
Page 282
254
8 Programming: Cycles
8.3 Cy
cles f
o
r Dr
illing, T
a
pping and Thr
ead Milling
U
U
U
U
Workpiece surface coordinate
Q203 (absolute
value): Coordinate of the workpiece surface.
U
U
U
U
2nd set-up clearance
Q204 (incremental value):
Coordinate in the tool axis at which no collision
between tool and workpiece (clamping devices) can
occur.
U
U
U
U
Feed rate for counterboring
Q254: Traversing
speed of the tool during counterboring in mm/min
U
U
U
U
Feed rate for milling
Q207: Traversing speed of the
tool in mm/min while milling.
Example: NC blocks
25 CYCL DEF 265 HEL. THREAD DRLG/MLG
Q335=10
;NOMINAL DIAMETER
Q239=+1.5
;PITCH
Q201=-16
;THREAD DEPTH
Q253=750
;F PREPOSITIONING
Q358=+0
;DEPTH AT FRONT
Q359=+0
;OFFSET AT FRONT
Q360=0
;COUNTERSINKING
Q200=2
;SAFETY CLEARANCE
Q203=+30
;SURFACE COORDINATE
Q204=50
;2ND SAFETY CLEARANCE
Q254=150
;F COUNTERBORING
Q207=500
;FEED RATE FOR MILLING