HEIDENHAIN TNC 370 - Page 248

8
Cycles
L-
8.6 Cycles for Multipass Milling
L
Examples for exercise
Milling a twisted surface
Input values for CYCL 231:
X coordinate point 1: +I20 mm (Q225)
Y coordinate point 1: +0 mm (Q226)
Z coordinate point 1: -10 mm (0227)
X coordinate point 2: +0 mm (0228)
Y coordinate point 2: +0 mm (0229)
Z coordinate point 2: +0 mm (Q230)
X coordinate point 3: +30 mm (Q231)
Y coordinate point 3: +60 mm (Q232)
Z coordinate point 3: -5 mm (0233)
X coordinate point 4: +I20 mm (Q234)
Y coordinate point 4: +85 mm (Q235)
Z coordinate point 4: -10 mm (Q236)
Feed rate: 250 mm/min (Q207)
Number of cuts: 17
(0240)
RULED SURFACE cycle in a pat-t program
0 BEGIN PGM 3702792 MM
1 BLK FORM 0.1 Z X+0 Y+O Z-20
2 BLK FORM 0.2 X+120 Y+85 Z+lO
3 TOOL DEF 1 L+O R+5
4 TOOL CALL 1 Z S2500
5 L Z+200 RO F MAX M3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Retract tool
6 L X+140 Y-20
RO F MAX . . . . . . . . . . . . . . . . . . . . . . . . . . . . Pre-position tool in the vicinity of the starting point (plane)
7 L Z-5 RO F2000 . . . . . . ..___.......................................... Pre-position tool in Z axis
8 CYCL DEF 231 RULED SURFACE
Q225=+120
Q226=+0
Q227=-10
Q228=+0
Q229=+0
Q230=+0
Q231=+30
Q232=+60
Q233=-5
Q234=+120
Q235=+85
Q236=-10
Q240=17
Q207=250
9 CYCL CALL M3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Cycle call, spindle ON
10 L Z+200 RO F MAX M2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Retract tool
11 END PGM 3702792 MM
L-
TNC 370
8-59