HEIDENHAIN iTNC 530 (60642x-03) - Manual (Page 366)

366 Programming: Q parameters
9.12 Pr
ogr
amming examples
Example: Concave cylinder machined with spherical cutter
Program sequence
 This program functions only with a spherical
cutter. The tool length refers to the sphere
center.
 The contour of the cylinder is approximated by
many short line segments (defined in Q13). The
more line segments you define, the smoother
the curve becomes.
 The cylinder is milled in longitudinal cuts (here:
parallel to the Y axis).
 The machining direction can be altered by
changing the entries for the starting and end
angles in space:
Clockwise machining direction:
starting angle > end angle
Counterclockwise machining direction:
starting angle < end angle
 The tool radius is compensated automatically.
0 BEGIN PGM CYLIN MM
1 Q1 = +50 Center in X axis
2 Q2 = +0 Center in Y axis
3 Q3 = +0 Center in Z axis
4 Q4 = +90 Starting angle in space (Z/X plane)
5 Q5 = +270 End angle in space (Z/X plane)
6 Q6 = +40 Cylinder radius
7 Q7 = +100 Length of the cylinder
8 Q8 = +0 Rotational position in the X/Y plane
9 Q10 = +5 Allowance for cylinder radius
10 Q11 = +250 Feed rate for plunging
11 Q12 = +400 Feed rate for milling
12 Q13 = +90 Number of cuts
13 BLK FORM 0.1 Z X+0 Y+0 Z-50 Definition of workpiece blank
14 BLK FORM 0.2 X+100 Y+100 Z+0
15 TOOL CALL 1 Z S4000 Tool call
16 L Z+250 R0 FMAX Retract the tool
17 CALL LBL 10 Call machining operation
18 FN 0: Q10 = +0 Reset allowance
19 CALL LBL 10 Call machining operation
X
Y
50 100
100
Z
Y
X
Z
-50
R40