HEIDENHAIN TNC 620 (340 56x-01) - Manual (Page 230)

230
8.2 Cy
cles f
o
r Dr
illing, T
apping and Thr
ead Milling
 Set-up clearance Q200 (incremental value): Distance
between tool tip and workpiece surface.
 Depth Q201 (incremental value): Distance between
workpiece surface and bottom of hole.
 Feed rate for plunging Q206: Traversing speed of
the tool during reaming in mm/min.
 Dwell time at depth Q211: Time in seconds that the
tool remains at the hole bottom.
 Retraction feed rate Q208: Traversing speed of the
tool in mm/min when retracting from the hole. If you
enter Q208 = 0, the tool retracts at the reaming feed
rate.
 Workpiece surface coordinate Q203 (absolute
value): Coordinate of the workpiece surface.
 2nd set-up clearance Q204 (incremental value):
Coordinate in the spindle axis at which no collision
between tool and workpiece (clamping devices) can
occur.
Example: NC blocks
10 L Z+100 R0 FMAX
11 CYCL DEF 201 REAMING
Q200=2 ;SET-UP CLEARANCE
Q201=-15 ;DEPTH
Q206=100 ;FEED RATE FOR PLUNGING
Q211=0.5 ;DWELL TIME AT DEPTH
Q208=250 ;RETRACTION FEED RATE
Q203=+20 ;SURFACE COORDINATE
Q204=100 ;2ND SET-UP CLEARANCE
12 L X+30 Y+20 FMAX M3
13 CYCL CALL
14 L X+80 Y+50 FMAX M99
15 L Z+100 FMAX M2