HEIDENHAIN ITNC 530 - CYCLE PROGRAMMING User Manual page 159

Cycle programming
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U
Setup clearance Q200 (incremental): Distance
between tool tip and workpiece surface. Input range
0 to 99999.9999, alternatively PREDEF
U
Workpiece surface coordinate Q203 (absolute):
Absolute coordinate of the workpiece surface. Input
range -99999.9999 to 99999.9999
U
2nd setup clearance Q204 (incremental): Coordinate
in the spindle axis at which no collision between tool
and workpiece (fixtures) can occur. Input range 0 to
99999.9999, alternatively PREDEF
U
Plunging strategy Q366: Type of plunging strategy:
0 = vertical plunging. The TNC plunges
perpendicularly, regardless of the plunging angle
ANGLE defined in the tool table.
1 = helical plunging. In the tool table, the plunging
angle ANGLE for the active tool must be defined as
not equal to 0. Otherwise, the TNC generates an
error message. Plunge on a helical path only if there
is enough space.
2 = reciprocating plunge. In the tool table, the
plunging angle ANGLE for the active tool must be
defined as not equal to 0. Otherwise, the TNC
generates an error message. The TNC can only
plunge reciprocally once the traversing length on
the circular arc is at least three times the tool
diameter.
Alternative: PREDEF
U
Feed rate for finishing Q385: Traversing speed of
the tool during side and floor finishing in mm/min.
Input range: 0 to 99999.999; alternatively FAUTO, FU,
FZ.
HEIDENHAIN iTNC 530
Example: NC blocks
8 CYCL DEF 254 CIRCULAR SLOT
Q215=0
;MACHINING OPERATION
Q219=12
;SLOT WIDTH
Q368=0.2 ;ALLOWANCE FOR SIDE
Q375=80
;PITCH CIRCLE DIA.
Q367=0
;REF. SLOT POSITION
Q216=+50 ;CENTER IN 1ST AXIS
Q217=+50 ;CENTER IN 2ND AXIS
Q376=+45 ;STARTING ANGLE
Q248=90
;ANGULAR LENGTH
Q378=0
;STEPPING ANGLE
Q377=1
;NUMBER OF OPERATIONS
Q207=500 ;FEED RATE FOR MILLING
Q351=+1
;CLIMB OR UP-CUT
Q201=-20 ;DEPTH
Q202=5
;PLUNGING DEPTH
Q369=0.1 ;ALLOWANCE FOR FLOOR
Q206=150 ;FEED RATE FOR PLUNGING
Q338=5
;INFEED FOR FINISHING
Q200=2
;SETUP CLEARANCE
Q203=+0
;SURFACE COORDINATE
Q204=50
;2ND SETUP CLEARANCE
Q366=1
;PLUNGE
Q385=500 ;FEED RATE FOR FINISHING
9 CYCL CALL POS X+50 Y+50 Z+0 FMAX M3
159

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