HEIDENHAIN TNC 620 (340 56x-02) Cycle programming - Manual (Page 121)

HEIDENHAIN TNC 620 121
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OUTSIDE THREAD MILLING (Cy
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, DIN/ISO: G267
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Option)
U Setup clearance Q200 (incremental): Distance
between tool tip and workpiece surface. Input range
0 to 99999.9999
U Depth at front Q358 (incremental): Distance
between tool tip and the top surface of the workpiece
for countersinking at the front of the tool. Input range
-99999.9999 to 99999.9999
U 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
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
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 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 ;SETUP CLEARANCE
Q358=+0 ;DEPTH AT FRONT
Q359=+0 ;OFFSET AT FRONT
Q203=+30 ;SURFACE COORDINATE
Q204=50 ;2ND SETUP CLEARANCE
Q254=150 ;F COUNTERSINKING
Q207=500 ;FEED RATE FOR MILLING