7 sl cy cles g roup ii – HEIDENHAIN iTNC 530 (340 422) ISO programming User Manual
Page 348
348
8 Programming: Cycles
8
.7 SL Cy
cles G
roup II
U
U
U
U
Milling depth
Q1 (incremental value): Distance
between workpiece surface and contour floor.
U
U
U
U
Finishing allowance for side
Q3 (incremental
value): Finishing allowance in the working plane.
U
U
U
U
Workpiece surface coordinate
Q5 (absolute value):
Absolute coordinate of the workpiece surface
referenced to the workpiece datum.
U
U
U
U
Clearance height
Q7 (absolute value): Absolute
height at which the tool cannot collide with the
workpiece. Position for tool retraction at the end of
the cycle.
U
U
U
U
Plunging depth
Q10 (incremental value): Dimension
by which the tool plunges in each infeed.
U
U
U
U
Feed rate for plunging
Q11: Traversing speed of the
tool in the tool axis.
U
U
U
U
Feed rate for milling
Q12: Traversing speed of the
tool in the working plane.
U
U
U
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 block
N62 G125 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