157
HEIDENHAIN TNC 426 B, TNC 430
ú
Workpiece surface coordinate Q203 (absolute value):
Coordinate of the workpiece surface
ú
2nd set-up clearance Q204 (incremental value):
Coordinate in the tool axis at which no collision
between tool and workpiece (clamping devices) can
occur.
REAMING (Cycle 201)
1
The TNC positions the tool in the tool axis at rapid traverse FMAX
to the programmed set-up 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 in
FMAX.
Before programming, note the following:
Program a positioning block for the starting point (hole
center) in the working plane with RADIUS
COMPENSATION R0.
The algebraic sign for the depth parameter determines
the working direction.
ú
Set-up clearance Q200 (incremental value): Distance
between tool tip and workpiece surface.
ú
Depth Q201 (incremental value): Distance between
workpiece surface and bottom of hole
ú
Feed rate for plunging Q206: Traversing speed of the
tool during reaming in mm/min
ú
Dwell time at depth Q211: Time in seconds that the
tool remains at the hole bottom
ú
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.
ú
Workpiece surface coordinate Q203 (absolute value):
Coordinate of the workpiece surface
ú
2nd set-up clearance Q204 (incremental value):
Coordinate in the tool axis at which no collision
between tool and workpiece (clamping devices) can
occur.
X
Z
Q200
Q201
Q206
Q211
Q203
Q204
Q208
8.2 Dr
illing Cy
cles
Example NC blocks:
8 CYCL DEF 201 REAMING
Q200=2
;SET-UP CLEARANCE
Q201=-20
;DEPTH
Q206=150
;FEED RATE FOR PLUNGING
Q211=0.25
;DWELL TIME AT BOTTOM
Q208=500
;RETRACTION FEED TIME
Q203=+0
;SURFACE COORDINATE
Q204=50
;2. SET-UP CLEARANCE
kkap8.pm6
30.06.2006, 07:03
157
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Summary of Contents for TNC 426 B
Page 3: ...BAUSKLA PM6 30 06 2006 07 03 2 www EngineeringBooksPdf com ...
Page 4: ...BAUSKLA PM6 30 06 2006 07 03 3 www EngineeringBooksPdf com ...
Page 6: ...CINHALT PM6 30 06 2006 07 03 2 www EngineeringBooksPdf com ...
Page 16: ...CINHALT PM6 30 06 2006 07 03 12 www EngineeringBooksPdf com ...
Page 17: ...Introduction 1 Dkap1 pm6 30 06 2006 07 03 1 www EngineeringBooksPdf com ...
Page 29: ...Manual Operation and Setup 2 Dkap2_3 pm6 30 06 2006 07 03 13 www EngineeringBooksPdf com ...
Page 83: ...Programming Tools 5 Fkap5 pm6 30 06 2006 07 03 67 www EngineeringBooksPdf com ...
Page 106: ...Fkap5 pm6 30 06 2006 07 03 90 www EngineeringBooksPdf com ...
Page 107: ...Programming Programming Contours 6 Gkap6 pm6 30 06 2006 07 04 91 www EngineeringBooksPdf com ...
Page 165: ...Hkap7 pm6 30 06 2006 07 03 150 www EngineeringBooksPdf com ...
Page 166: ...Programming Cycles 8 kkap8 pm6 30 06 2006 07 03 151 www EngineeringBooksPdf com ...
Page 253: ...kkap8 pm6 30 06 2006 07 04 238 www EngineeringBooksPdf com ...
Page 265: ...LKAP9 PM6 30 06 2006 07 04 250 www EngineeringBooksPdf com ...
Page 266: ...Programming Q Parameters 10 MKAP10 PM6 30 06 2006 07 04 251 www EngineeringBooksPdf com ...
Page 297: ...MKAP10 PM6 30 06 2006 07 04 282 www EngineeringBooksPdf com ...
Page 298: ...Test Run and Program Run 11 NKAP11 PM6 30 06 2006 07 04 283 www EngineeringBooksPdf com ...
Page 312: ...MOD Functions 12 Okap12 pm6 30 06 2006 07 04 297 www EngineeringBooksPdf com ...
Page 332: ...Tables and Overviews 13 Pkap13 pm6 30 06 2006 07 04 317 www EngineeringBooksPdf com ...