HEIDENHAIN TNC 370 - Examples for Exercise

8 Cycles
8.2 Drilling Cycles
Examples for exercise
UNIVERSAL DRILLING CYCLE
Coordinates of the holes:
@ X = 20 mm Y = 30 mm, depth30mm
@ X = 80 mm Y = 50mm, depth20mm
Hole diameter: 6 mm
Input values:
Setup clearance: +2 mm
(Q200)
Total hole depth: -3O/-20 mm (Q201)
Drilling feed rate: 80 mm/min (Q206)
Pecking depth:
+4 mm
(Q202)
Dwell time at top: 0 s (Q210)
Workpiece surface: +0 mm (0203)
2nd setup clearance: +50 mm (Q204)
Decrement: +0.5 mm (Q212)
Number of chip breaks:
312
(Q213)
Minimum pecking depth: +2 mm (Q205)
Dwell time at depth: 0.5 s (0211)
Retraction feed rate: 1000 mm/min (0208)
0 BEGIN PGM 3702732 MM
1 BLK FORM 0.1 Z X+0 Y+O Z-40
2 BLK FORM 0.2 X+1 00 Y+lOO Z+O
3 TOOL DEF 1 L+O R+3
4 TOOL CALL 1 Z S3500
5 L Z+200 RO F MAX M3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .._....._._... Retract tool, spindle ON
6 CYCL DEF 203 UNIVERSL DRILLING
Q200=2
Q20 I=-30
Q206=80
Q202=4
Q210=0
Q203=+0
Q204=50
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Jump over the obstacle between the holes
Q212=0.5
Q213=3
Q205=2
Q211=0.5
Q208=1000 _..................___...__........................____. Define cycle
7 L X+20 Y+30 RO F MAX M99 . . . . . . . . . . . . . . . . . . . . . . . . . . . Traverse to first hole, call cycle
8 FN 0: 0201 = -20 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Change depth for the second hole with parameter function FNO
9 FN 0: 0213 = +2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Change the number of chip breaks for the second hole
10 L X+80 Y+50 RO F MAX M99 Traverse to second hole, call cycle, changed parameters
come into effect
1 1 L Z+200 RO F MAX M2 _._..__................................. Retract tool
12 END PGM 3702732 MM
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8-l 4 TNC 370 -