HEIDENHAIN iTNC 530 (340 49x-05) Cycle programming - Manual (Page 132)

132 Canned Cycles: Tapping / Thread Milling
4.1
1
Pr
ogr
amming examples
4.11 Programming examples
Example: Thread milling
The drill hole coordinates are stored in the point
table TAB1.PNT and are called by the TNC with
CYCL CALL PAT.
The tool radii are selected so that all work steps
can be seen in the test graphics.
Program sequence
„ Centering
„ Drilling
„ Tapping
0 BEGIN PGM 1 MM
1 BLK FORM 0.1 Z X+0 Y+0 Z-20 Definition of workpiece blank
2 BLK FORM 0.2 X+100 Y+100 Y+0
3 TOOL DEF 1 L+0 R+4 Tool definition of center drill
4 TOOL DEF 2 L+0 2.4 Drill tool definition
5 TOOL DEF 3 L+0 R+3 Tool definition of tap
6 TOOL CALL 1 Z S5000 Tool call of centering drill
7 L Z+10 R0 F5000 Move tool to clearance height (enter a value for F)
The TNC positions to the clearance height after every cycle
8 SEL PATTERN “TAB1” Defining point tables
9 CYCL DEF 200 DRILLING Cycle definition: CENTERING
Q200=2 ;SETUP CLEARANCE
Q201=-2 ;DEPTH
Q206=150 ;FEED RATE FOR PLNGN
Q202=2 ;PLUNGING DEPTH
Q210=0 ;DWELL TIME AT TOP
Q203=+0 ;SURFACE COORDINATE 0 must be entered here, effective as defined in point table
X
Y
20
10
100
100
10
90
90 80
30
55
40
65
M6