HEIDENHAIN iTNC 530 (34049x-08) Cycle programming - Manual (Page 195)

HEIDENHAIN iTNC 530 195
7.
4 CONT
OUR D
A
TA
(Cy
cle 20, DIN/ISO:
G120)
Cycle parameters
 Milling depth
Q1 (incremental): Distance between
workpiece surface and bottom of pocket. Input range
-99999.9999 to 99999.9999
 Path overlap factor Q2: Q2 x tool radius = stepover
factor k. Input range -0.0001 to 1.9999.
 Finishing allowance for side
Q3 (incremental):
Finishing allowance in the working plane. Input range
-99999.9999 to 99999.9999
 Finishing allowance for floor
Q4 (incremental):
Finishing allowance in the tool axis. Input range
-99999.9999 to 99999.9999
 Workpiece surface coordinate Q5 (absolute):
Absolute coordinate of the workpiece surface. Input
range -99999.9999 to 99999.9999
 Set-up clearance
Q6 (incremental): Distance
between tool tip and workpiece surface. Input range
0 to 99999.9999; alternatively PREDEF
 Clearance height
Q7 (absolute): Absolute height at
which the tool cannot collide with the workpiece (for
intermediate positioning and retraction at the end of
the cycle). Input range -99999.9999 to 99999.9999,
alternatively PREDEF
 Inside corner radius
Q8: Inside "corner" rounding
radius; entered value is with respect to the path of the
tool center and is used to calculate smoother traverse
motions between the contour elements. Q8 is not a
radius that is inserted as a separate contour
element between programmed elements! Input
range 0 to 99999.9999
 Direction of rotation?
Q9: Machining direction for
pockets.
 Q9 = –1 up-cut milling for pocket and island
 Q9 = +1 climb milling for pocket and island
 Alternative: PREDEF
You can check the machining parameters during a program
interruption and overwrite them if required.
Example: NC blocks
57 CYCL DEF 20 CONTOUR DATA
Q1=-20 ;MILLING DEPTH
Q2=1 ;TOOL PATH OVERLAP
Q3=+0.2 ;ALLOWANCE FOR SIDE
Q4=+0.1 ;ALLOWANCE FOR FLOOR
Q5=+30 ;SURFACE COORDINATE
Q6=2 ;SET-UP CLEARANCE
Q7=+80 ;CLEARANCE HEIGHT
Q8=0.5 ;ROUNDING RADIUS
Q9=+1 ;DIRECTION OF ROTATION
X
Y
k
Q9=+1
Q8
Q9=–1
X
Z
Q6
Q7
Q1
Q10
Q5