HEIDENHAIN iTNC 530 (34049x-08) Cycle programming - Manual (Page 127)

HEIDENHAIN iTNC 530 127
4.7
THREAD
MILLING
/
COUNTER
S
INKING (Cy
cle 263, DIN/ISO:
G263)
 Workpiece surface coordinate
Q203 (absolute):
Coordinate of the workpiece surface. Input range
-99999.9999 to 99999.9999
 2nd set-up 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
 Feed rate for countersinking
Q254: Traversing
speed of the tool during countersinking in mm/min.
Input range 0 to 99999.999; alternatively FAUTO, FU
 Feed rate for milling
Q207: Traversing speed of the
tool during milling in mm/min. Input range 0 to
99999.9999; alternatively FAUTO
 Feed rate for approach Q512: Traversing speed of
the tool during entry into the thread in mm/min. Input
range 0 to 99999.999; alternatively FAUTO
Example: NC blocks
25 CYCL DEF 263 THREAD MLLNG/CNTSNKG
Q335=10 ;NOMINAL DIAMETER
Q239=+1.5 ;PITCH
Q201=-16 ;DEPTH OF THREAD
Q356=-20 ;COUNTERSINKING DEPTH
Q253=750 ;F PRE-POSITIONING
Q351=+1 ;CLIMB OR UP-CUT
Q200=2 ;SET-UP CLEARANCE
Q357=0.2 ;CLEARANCE TO SIDE
Q358=+0 ;DEPTH AT FRONT
Q359=+0 ;OFFSET AT FRONT
Q203=+30 ;SURFACE COORDINATE
Q204=50 ;2ND SET-UP CLEARANCE
Q254=150 ;F COUNTERSINKING
Q207=500 ;FEED RATE FOR MILLING
Q512=50 ;FEED RATE FOR APPROACH