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HEIDENHAIN iTNC 530 (340 420) ISO programming User Manual

Page 287

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HEIDENHAIN iTNC 530

287

8.4 Cy

cles f

o

r Milling P

o

c

k

ets, St

uds and Slots

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Set-up clearance

Q200 (incremental value): Distance

between tool tip and workpiece surface.

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Depth

Q201 (incremental value): Distance between

workpiece surface and bottom of slot.

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Feed rate for milling

Q207: Traversing speed of the

tool in mm/min while milling.

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Plunging depth

Q202 (incremental value): Total

extent by which the tool is fed in the tool axis during
a reciprocating movement.

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Machining operation (0/1/2)

Q215: Define the

machining operation:
0: Roughing and finishing
1: Only roughing
2: Only finishing

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Workpiece surface coordinate

Q203 (absolute

value): Coordinate of the workpiece surface.

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2nd set-up clearance

Q204 (incremental value):

Z coordinate at which no collision between tool and
workpiece (clamping devices) can occur.

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Center in 1st axis

Q216 (absolute value): Center of

the slot in the reference axis of the working plane.

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Center in 2nd axis

Q217 (absolute value): Center of

the slot in the minor axis of the working plane.

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First side length

Q218 (value parallel to the

reference axis of the working plane): Enter the length
of the slot.

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Second side length

Q219 (value parallel to the

secondary axis of the working plane): 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).

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Angle of rotation

Q224 (absolute value): Angle by

which the entire slot is rotated. The center of rotation
lies in the center of the slot.

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Infeed for finishing

Q338 (incremental value):

Infeed per cut. Q338=0: Finishing in one infeed.

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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

N510 G210 SLOT RECIP. PLNG

Q200=2

;SET-UP CLEARANCE

Q201=-20

;DEPTH

Q207=500

;FEED RATE FOR MILLING

Q202=5

;PLUNGING 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

Q218=80

;FIRST SIDE LENGTH

Q219=12

;SECOND SIDE LENGTH

Q224=+15

;ANGLE OF ROTATION

Q338=5

;INFEED FOR FINISHING

Q206=150

;FEED RATE FOR PLUNGING