HEIDENHAIN ITNC 530 - Page 373

HEIDENHAIN iTNC 530 373
9.12 Programming examples
20 L Z+100 R0 FMAX M2 Retract the tool, end program
21 LBL 10 Subprogram 10: Machining operation
22 Q16 = Q6 - Q10 - Q108 Account for allowance and tool, based on the cylinder radius
23 Q20 = +1 Set counter
24 Q24 = +Q4 Copy starting angle in space (Z/X plane)
25 Q25 = (Q5 - Q4) / Q13 Calculate angle increment
26 CYCL DEF 7.0 DATUM SHIFT Shift datum to center of cylinder (X axis)
27 CYCL DEF 7.1 X+Q1
28 CYCL DEF 7.2 Y+Q2
29 CYCL DEF 7.3 Z+Q3
30 CYCL DEF 10.0 ROTATION Account for rotational position in the plane
31 CYCL DEF 10.1 ROT+Q8
32 L X+0 Y+0 R0 FMAX Pre-position in the plane to the cylinder center
33 L Z+5 R0 F1000 M3 Pre-position in the spindle axis
34 LBL 1
35 CC Z+0 X+0 Set pole in the Z/X plane
36 LP PR+Q16 PA+Q24 FQ11 Move to starting position on cylinder, plunge-cutting obliquely into
the material
37 L Y+Q7 R0 FQ12 Longitudinal cut in Y+ direction
38 Q20 = +Q20 + +1 Update the counter
39 Q24 = +Q24 + +Q25 Update solid angle
40 FN 11: IF +Q20 GT +Q13 GOTO LBL 99 Finished? If finished, jump to end
41 LP PR+Q16 PA+Q24 FQ11 Move in an approximated "arc" for the next longitudinal cut
42 L Y+0 R0 FQ12 Longitudinal cut in Y– direction
43 Q20 = +Q20 + +1 Update the counter
44 Q24 = +Q24 + +Q25 Update solid angle
45 FN 12: IF +Q20 LT +Q13 GOTO LBL 1 Unfinished? If not finished, return to LBL 1
46 LBL 99
47 CYCL DEF 10.0 ROTATION Reset the rotation
48 CYCL DEF 10.1 ROT+0
49 CYCL DEF 7.0 DATUM SHIFT Reset the datum shift
50 CYCL DEF 7.1 X+0
51 CYCL DEF 7.2 Y+0
52 CYCL DEF 7.3 Z+0
53 LBL 0 End of subprogram
54 END PGM CYLIN