HEIDENHAIN iTNC 530 (34049x-08) Cycle programming - Manual (Page 139)

HEIDENHAIN iTNC 530 139
4.1
0 OUTSIDE THREAD MILLING (Cy
cle 267
, DIN/ISO:
G267)
 Set-up clearance
Q200 (incremental): Distance
between tool tip and workpiece surface. Input range
0 to 99999.9999; alternatively PREDEF
 Depth at front Q358 (incremental): Distance
between tool tip and the top surface of the workpiece
for countersinking at front. Input range -99999.9999
to 99999.9999
 Countersinking offset at front
Q359 (incremental):
Distance by which the TNC moves the tool center
away from the stud center. Input range 0 to
99999.9999
 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
99999.999; 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 267 OUTSIDE THREAD MLLNG
Q335=10 ;NOMINAL DIAMETER
Q239=+1.5 ;PITCH
Q201=-20 ;DEPTH OF THREAD
Q355=0 ;THREADS PER STEP
Q253=750 ;F PRE-POSITIONING
Q351=+1 ;CLIMB OR UP-CUT
Q200=2 ;SET-UP CLEARANCE
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