HEIDENHAIN iTNC 530 (340 49x-01) - Manual (Page 276)

276 8 Programming: Cycles
8.3 Cy
cles f
o
r Dr
illing, T
a
pping and Thr
ead Milling
8 Set-up clearance Q200 (incremental value): Distance
between tool tip and workpiece surface. Enter a
positive value.
8 Select Depth/Diameter (0/1) Q343: Select whether
centering is based on the entered diameter or depth.
If centering is based on the entered diameter, the
point angle of the tool must be defined in the
CUT.
column of the tool table TOOL.T.
8 Depth Q201 (incremental value): Distance between
workpiece surface and centering bottom (tip of
centering taper). Only effective if Q343=0 is defined.
8 Diameter (algebraic sign) Q344: Centering
diameter. Only effective if Q343=1 is defined.
8 Feed rate for plunging Q206: Traversing speed of
the tool during centering in mm/min.
8 Dwell time at depth Q211: Time in seconds that the
tool remains at the hole bottom.
8 Workpiece surface coordinate Q203 (absolute
value): Coordinate of the workpiece surface.
8 2nd set-up clearance Q204 (incremental value):
Coordinate in the tool 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 240 CENTERING
Q200=2 ;SET-UP CLEARANCE
Q343=1 ;SELECT THE DEPTH/DIA.
Q201=+0 ;DEPTH
Q344=-9 ;DIAMETER
Q206=250 ;FEED RATE FOR PLUNGING
Q211=0.1 ;DWELL TIME AT DEPTH
Q203=+20 ;SURFACE COORDINATE
Q204=100 ;2ND SET-UP CLEARANCE
12 CYCL CALL X+30 Y+20 Z+0 FMAX M3
13 CYCL CALL X+80 Y+50 Z+0 FMAX
14 L Z+100 FMAX M2