HEIDENHAIN TNC 370 - Examples for Exercise

8 Cycles
4
8.3 Cycles for Milling Pockets, Studs and Slots
Examples for exercise
Roughing and finishing a pocket from solid
Input values:
Setup clearance: +2 mm (0200)
Milling depth: -20 mm (Q201)
Positioning feed rate: 1500 mm/min (Q206)
Pecking depth: +6 mm (0202)
Feed rate for milling: 350 mm/min (0207)
Workpiece surface: +O mm (Q203)
2nd setup clearance:
+I00 mm
(Q204)
Center of pocket in X: +50 mm (Q216)
Center of pocket in Y: +50 mm (Q217)
Length of pocket in X: +80 mm (0218)
Width of pocket in Y: +60 mm (0219)
Corner radius: +7 mm (Q220)
Allowance in X: +2 mm (Q221)
Workpiece blank length X: 76 mm
Workpiece blank length Y: 56 mm
0 BEGIN PGM 370275 MM
1 BLK FORM 0.1 Z X+0 Y+O Z-30
2 BLK FORM 0.2 X+1 00 Y+lOO Z+O
3 TOOL DEF 1 L+O R+6
4 TOOL CALL 1 Z S2500
5 L Z+200 RO F MAX M3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Retract tool, spindle ON
6 L X+50 Y+50 RO F MAX . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Preposition in the center of the pocket (only necessary for
Cycle 4)
7 CYCL DEF 4.0 POCKET MILLING
8 CYCL DEF 4.1 DIST. 2
9 CYCL DEF 4.2 DEPTH -20
IO CYCL DEF 4.3 PECKING DEPTH IO F150
11 CYCL DEF 4.4 X+76 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .._ Workpiece blank length X
12 CYCL DEF 4.5 Y+56 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .._._...___ Workpiece blank length Y
13 CYCL DEF 4.6 F350 DR+
. . . . . . . . . . . . . . . . . . . . . . . . . . . . Define standard cycle for pocket roughing
14 L Z+2
RO F MAX M99 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Preposition to setup clearance, call cycle
15 CYCL DEF 212 POCKET FINISHING
Q200=2
Q201=-20
Q206= 1500
Q202=6
Q207=350
Q203=+0
Q204=100
Q216=+50
Q217=+50
Q218=80
Q219=60
Q220=7
Q221 =+2
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Define cycle for pocket finishing
16 CYCL CALL . . . . . . . . . . . . . .._....................................... Call cycle
22 L Z+200 RO F MAX M2
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Retract tool
23 END PGM 370275 MM
8-32
TNC 370