HEIDENHAIN iTNC 530 (34049x-08) Cycle programming - Manual (Page 140)

140 Fixed 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 Tool definition of drill
5 TOOL DEF 3 L+0 R+3 Tool definition of tap
6 TOOL CALL 1 Z S5000 Tool call for 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” Definition of point table
9 CYCL DEF 200 DRILLING Cycle definition: CENTERING
Q200=2 ;SET-UP 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