HEIDENHAIN iTNC 530 (340 49x-06) Cycle programming - Manual (Page 149)

HEIDENHAIN iTNC 530 149
5.3 CIR
C
ULAR POCKET (Cy
c
le 252, DIN/ISO: G252)
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 Path overlap factor Q370: Q370 x tool radius =
stepover factor k. Input range: 0.1 to 1.414
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. The TNC will otherwise display an
error message.
„ 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
.
Example: NC blocks
8 CYCL DEF 252 CIRCULAR POCKET
Q215=0 ;MACHINING OPERATION
Q223=60 ;CIRCLE DIAMETER
Q368=0.2 ;ALLOWANCE FOR SIDE
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
Q370=1 ;TOOL PATH OVERLAP
Q366=1 ;PLUNGE
Q385=500 ;FEED RATE FOR FINISHING
9 CYCL CALL POS X+50 Y+50 Z+0 FMAX M3
X
Z
Q200
Q204
Q203
Q369
Q368