HEIDENHAIN TNC 640 (34059x-01) Cycle programming - Manual (Page 189)

HEIDENHAIN TNC 640 189
7.
9 CONT
OUR TRAIN (Cy
c
le 25, DIN/ISO: G125)
Cycle parameters
U Milling depth Q1 (incremental): Distance between
workpiece surface and contour floor. Input range
-99999.9999 to 99999.9999
U Finishing allowance for side Q3 (incremental):
Finishing allowance in the working plane. Input range
-99999.9999 to 99999.9999
U Workpiece surface coordinate Q5 (absolute):
Absolute coordinate of the workpiece surface
referenced to the workpiece datum. Input range
-99999.9999 to 99999.9999
U Clearance height Q7 (absolute): Absolute height at
which the tool cannot collide with the workpiece.
Position for tool retraction at the end of the cycle.
Input range -99999.9999 to 99999.9999
U Plunging depth Q10 (incremental): Infeed per cut.
Input range -99999.9999 to 99999.9999
U Feed rate for plunging Q11: Traversing speed of the
tool in the spindle axis. Input range 0 to 99999.9999;
alternatively FAUTO, FU, FZ
U Feed rate for milling Q12: Traversing speed of the
tool in the working plane. Input range 0 to
99999.9999; alternatively FAUTO, FU, FZ
U Climb or up-cut? Up-cut = –1 Q15:
Climb milling: Input value = +1
Up-cut milling: Input value = –1
To enable climb milling and up-cut milling alternately
in several infeeds:Input value = 0
Example: NC blocks
62 CYCL DEF 25 CONTOUR TRAIN
Q1=-20 ;MILLING DEPTH
Q3=+0 ;ALLOWANCE FOR SIDE
Q5=+0 ;SURFACE COORDINATE
Q7=+50 ;CLEARANCE HEIGHT
Q10=+5 ;PLUNGING DEPTH
Q11=100 ;FEED RATE FOR PLNGNG
Q12=350 ;FEED RATE FOR MILLING
Q15=-1 ;CLIMB OR UP-CUT