HEIDENHAIN TNC 370 User Manual page 220

8 Cycles
L
-
L-
8.3 Cycles for Milling Pockets, Studs and Slots
Input data
L
l
SET-UP CLEARANCE 0200 (incremental value):
Distance between tool tip and workpiece
surface. Enter a positive value.
l
, DEPTH 0201 (incremental value):
Distance between workpiece surface and
bottom of slot. Enter a negative value.
l
FEED RATE FOR MILLING 0207:
Traversing speed of the tool when milling in
mm/min.
l
PECKING DEPTH 0202 (incremental value):
Total extent by which the tool is fed in during a
reciprocating movement in the tool axis. Enter a
positive value.
l
MACHINING OPERATION (O/1/2) 02 15:
Specify extent of machining:
0: Roughing and finishing
1: Roughing only
2: Finishing only
Fig. 8.34: Input parameters, CIRCULAR SLOT cycle
L-
l
WORKPIECE SURFACE COORDINATE 0203
(absolute value):
Coordinate of the workpiece surface.
l
2ND SET-UP CLEARANCE Q204
(incremental value):
Z coordinate at which no collision between tool
and workpiece (clamping devices) can occur.
Enter a positive value.
l
CENTER IN 1ST AXIS Q216 (absolute value):
Center of the slot in the main axis of the working
plane.
l
CENTER IN 2ND AXIS Q217 (absolute value):
Center of the slot in the secondary axis of the
working plane.
l
PITCH CIRCLE DIAMETER Q244:
Enter the diameter of the pitch circle.
l
SECOND SIDE LENGTH Q2 19:
-
Enter the width of the slot. If you enter a slot width
that equals the tool diameter, the TNC will only carry
out the roughing process (slot roughing).
l
STARTING ANGLE 0245 (absolute value):
Enter the polar angle of the starting point,
l
ANGULAR LENGTH Q248 (incremental value):
Enter the angular length of the slot.
Fig. 8.35: Input parameters, CIRCULAR SLOT
cycle
TNC 370
8-31