HEIDENHAIN TNC 410 ISO Programming - Manual (Page 213)

HEIDENHAIN TNC 410, TNC 426, TNC 430 187
8.3 Cy
cles f
o
r Dr
illing
, T
a
p
p
ing
and
Th
read Millin
g U U U U Dwell time at top Q210: Time in seconds that the
tool remains at set-up clearance after having been
retracted from the hole for chip release.
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.
Not available with TNC 410:
U U U U Dwell time at depth Q211: Time in seconds that the
tool remains at the hole bottom.
REAMING (Cycle G201)
1 The TNC positions the tool in the tool axis at rapid traverse to the
programmed setup clearance above the workpiece surface.
2 The tool reams to the entered depth at the programmed feed
rate F.
3 If programmed, the tool remains at the hole bottom for the entered
dwell time.
4 The tool then retracts to set-up clearance at the feed rate F, and
from there—if programmed—to the 2nd set-up clearance at rapid
traverse.
X
Z
Q200
Q201
Q206
Q211
Q203
Q204
Q208
Before programming, note the following:
Program a positioning block for the starting point (hole
center) in the working plane with radius compensation
G40.
The algebraic sign for the cycle parameter DEPTH
determines the working direction. If you program DEPTH
= 0, the cycle will not be executed.