HEIDENHAIN TNC 426 B

171HEIDENHAIN TNC 426 B, TNC 430
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 pocket
ú
Feed rate for plunging Q206: Traversing speed of the
tool im mm/min when moving to depth. If you are
plunge-cutting into the material, enter a value lower
than that defined in Q207
ú
Plunging depth Q202 (incremental value):
Infeed per cut; enter a value greater than 0.
ú
Feed rate for milling Q207: Traversing speed of the
tool in mm/min while milling.
ú Workpiece surface coordinate Q203 (absolute value):
Coordinate of the workpiece surface
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2nd set-up clearance Q204 (incremental value):
Coordinate in the tool axis at which no collision
between tool and workpiece (clamping devices) can
occur.
ú
Center in 1st axis Q216 (absolute value): Center of the
pocket in the main axis of the working plane
ú
Center in 2nd axis Q217 (absolute value): Center of the
pocket in the secondary axis of the working plane
ú
First side length Q218 (incremental value): Pocket
length, parallel to the main axis of the working plane
ú Second side length Q219 (incremental value): Pocket
length, parallel to the secondary axis of the working
plane
ú
Corner radius Q220: Radius of the pocket corner If you
make no entry here, the TNC assumes that the corner
radius is equal to the tool radius.
ú
Allowance in 1st axis Q221 (incremental value):
Allowance in the main axis of the working plane
referenced to the length of the pocket.
X
Z
Q200
Q201
Q206
Q202
Q203
Q204
8.3 Cycle for Milling Pockets, Studs and Slots
X
Y
Q219
Q218
Q217
Q216
Q207
Q221
Q220
Example NC blocks:
34 CYCL DEF 212 POCKET FINISHING
Q200=2 ;SET-UP CLEARANCE
Q201=-20 ;DEPTH
Q206=150 ;FEED RATE FOR PLUNGING
Q202=5 ;PLUNGING DEPTH
Q207=500 ;FEED RATE FOR MILLING
Q203=+0 ;SURFACE COORDINATE
Q204=50 ;2. SET-UP CLEARANCE
Q216=+50 ;CENTER IN 1ST AXIS
Q217=+50 ;CENTER IN 2ND AXIS
Q218=80 ;1ST SIDE LENGTH
Q219=60 ;2ND SIDE LENGTH
Q220=5 ;CORNER RADIUS
Q221=0 ;ALLOWANCE
kkap8.pm6 30.06.2006, 07:03171
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