HEIDENHAIN iTNC 530 (340 49x-02) ISO programming - Manual (Page 320)

320 8 Programming: Cycles
8.3 Cy
cles f
o
r Dr
illing, T
a
pping and Thr
ead Milling
Example: Drilling cycles
Program sequence
„ Program the drilling cycle in the main program
„ Program machining within a subprogram (see
“Subprograms”, page 469)
%C18 G71 *
N10 G30 G17 X+0 Y+0 Z-20 * Define the workpiece blank
N20 G31 G90 X+100 Y+100 Z+0 *
N30 G99 T1 L+0 R+3 * Define the tool
N40 T1 G17 S4500 * Tool call
N50 G00 G40 G90 Z+250 * Retract the tool
N60 G86 P01 +30 P02 –1.75 * Define THREAD CUTTING cycle
N70 X+20 Y+20 * Approach hole 1
N80 L1.0 * Call subprogram 1
N90 X+70 Y+70 * Approach hole 2
N100 L1.0 * Call subprogram 1
N110 G00 Z+250 M2 * Retract tool, end of main program
N120 G98 L1 * Subprogram 1: Thread cutting
N130 G36 S0 * Define angle of spindle orientation
N140 M19 * Orient spindle (makes it possible to cut repeatedly)
N150 G01 G91 X-2 F1000 * Tool offset to prevent collision during tool infeed (depends
on core diameter and tool)
N160 G90 Z-30 * Move to starting depth
N170 G91 X+2 * Reset the tool to hole center
N180 G79 * Call Cycle 18
N190 G90 Z+5 * Retract tool
N200 G98 L0 * End of subprogram 1
N99999999 %C18 G71 *
X
Y
20
20
100
100
70
70
M12
M12