HEIDENHAIN TNC 640 (34059x-01) Cycle programming User Manual
Page 111
HEIDENHAIN TNC 640
111
4.7 THREAD MILLING / COUNTER
S
INKING (Cy
c
le 263, DIN/ISO: G263)
U
Workpiece surface coordinate Q203 (absolute):
Coordinate of the workpiece surface. Input range
-99999.9999 to 99999.9999
U
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
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
99999.9999; 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