HEIDENHAIN TNC 430 - Page 281

HEIDENHAIN TNC 426, TNC 430 255
8.3 Cycles for Drilling, Tapping and Thread Milling
Example: Drilling cycles
Program sequence
n Program the drilling cycle in the main program
n Program machining within a subprogram, see
“Subprograms,” page 343
0 BEGIN PGM C18 MM
1 BLK FORM 0.1 Z X+0 Y+0 Z-20 Define the workpiece blank
2 BLK FORM 0.2 X+100 Y+100 Z+0
3 TOOL DEF 1 L+0 R+6 Define the tool
4 TOOL CALL 1 Z S100 Tool call
5 L Z+250 R0 F MAX Retract the tool
6 CYCL DEF 18.0 THREAD CUTTING Define THREAD CUTTING cycle
7 CYCL DEF 18.1 DEPTH +30
8 CYCL DEF 18.2 PITCH -1.75
9 L X+20 Y+20 R0 F MAX Approach hole 1
10 CALL LBL 1 Call subprogram 1
11 L X+70 Y+70 R0 F MAX Approach hole 2
12 CALL LBL 1 Call subprogram 1
13 L Z+250 R0 F MAX M2 Retract tool, end of main program
X
Y
20
20
100
100
70
70
M12
M12