HEIDENHAIN ITNC 530 - CYCLE PROGRAMMING - Page 131

HEIDENHAIN iTNC 530 131
4.9 HELICAL THREAD DRILLING/MILLING (Cycle 265, DIN/ISO: G265)
U Workpiece surface coordinate Q203 (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 Feed rate for countersinking Q254: Traversing
speed of the tool during countersinking in mm/min.
Input range: 0 to 99999.999, alternatively FAUTO, FU.
U Feed rate for milling Q207: Traversing speed of the
tool during milling in mm/min. Input range: 0 to
99999.999, alternatively FAUTO.
Example: NC blocks
25 CYCL DEF 265 HEL. THREAD DRLG/MLG
Q335=10 ;NOMINAL DIAMETER
Q239=+1.5 ;PITCH
Q201=-16 ;DEPTH OF THREAD
Q253=750 ;F PRE-POSITIONING
Q358=+0 ;DEPTH AT FRONT
Q359=+0 ;OFFSET AT FRONT
Q360=0 ;COUNTERSINK
Q200=2 ;SETUP CLEARANCE
Q203=+30 ;SURFACE COORDINATE
Q204=50 ;2ND SETUP CLEARANCE
Q254=150 ;F COUNTERSINKING
Q207=500 ;FEED RATE FOR MILLING