HEIDENHAIN iTNC 530 (340 49x-02) ISO programming User Manual
Page 354
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8 Programming: Cycles
8.4 Cy
cles f
o
r Milling P
o
c
k
ets, St
uds and Slots
8
Set-up clearance
Q200 (incremental value): Distance
between tool tip and workpiece surface.
8
Depth
Q201 (incremental value): Distance between
workpiece surface and bottom of slot.
8
Feed rate for milling
Q207: Traversing speed of the
tool in mm/min while milling.
8
Plunging depth
Q202 (incremental value): Total
extent by which the tool is fed in the tool axis during
a reciprocating movement.
8
Machining operation (0/1/2)
Q215: Define the
machining operation:
0: Roughing and finishing
1: Only roughing
2: Only finishing
8
Workpiece surface coordinate
Q203 (absolute
value): Coordinate of the workpiece surface.
8
2nd set-up clearance
Q204 (incremental value):
Z coordinate at which no collision between tool and
workpiece (clamping devices) can occur.
8
Center in 1st axis
Q216 (absolute value): Center of
the slot in the reference axis of the working plane.
8
Center in 2nd axis
Q217 (absolute value): Center of
the slot in the minor axis of the working plane.
8
Pitch circle diameter
Q244: Enter the diameter of
the pitch circle.
8
2nd side length
Q219: Enter the slot width. If you
enter a slot width that equals the tool diameter, the
TNC will carry out the roughing process only (slot
milling).
8
Starting angle
Q245 (absolute value): Enter the polar
angle of the starting point.
8
Angular length
Q248 (incremental value): Enter the
angular length of the slot.
8
Infeed for finishing
Q338 (incremental value):
Infeed per cut. Q338=0: Finishing in one infeed.
8
Feed rate for plunging
Q206: Traversing speed of
the tool while moving to depth in mm/min. Effective
only during finishing if infeed for finishing is entered.
Example: NC blocks
N520 G211 CIRCULAR SLOT
Q200=2
;SET-UP CLEARANCE
Q201=-20
;DEPTH
Q207=500
;FEED RATE FOR MILLING
Q202=5
;INFEED DEPTH
Q215=0
;MACHINING OPERATION
Q203=+30
;SURFACE COORDINATE
Q204=50
;2ND SET-UP CLEARANCE
Q216=+50
;CENTER IN 1ST AXIS
Q217=+50
;CENTER IN 2ND AXIS
Q244=80
;PITCH CIRCLE DIA.
Q219=12
;2ND SIDE LENGTH
Q245=+45
;STARTING ANGLE
Q248=90
;ANGULAR LENGTH
Q338=5
;INFEED FOR FINISHING
Q206=150
;FEED RATE FOR PLUNGING