HEIDENHAIN TNC 310 (286 140) - Manual (Page 166)

9 Programming: Subprograms and Program Section Repeats 154
9.5 Programming Examples
Example: Milling a contour in several infeeds
Program sequence
■ Pre-position the tool to the workpiece surface
■ Enter the infeed depth in incremental values
■ Mill the contour
■ Repeat downfeed and contour-milling
0 BEGIN PGM 95 MM
1 BLK FORM 0.1 Z X+0 Y+0 Z-40
2 BLK FORM 0.2 X+100 Y+100 Z+0
3 TOOL DEF 1 L+0 R+10
4 TOOL CALL 1 Z S4000
5 L Z+250 R0 F MAX
6 L X-20 Y-20 R0 F MAX
7 L Z0 R0 F2000 M3
8 LBL 1
9 L IZ-4 r0 F2000
10 L X+5 Y+5 RL F300
11 RND R2
12 L Y+85
13 RND R10 F150
14 L X+30
15 CR X+70 Y+95 R+30 DR-
16 L X+95
17 L Y+40
18 CT X+40 Y+5
19 L X+5
20 RND R2
21 L X-20 Y-20 R0 F1000
22 CALL LBL 1 REP 4/4
23 L Z+250 R0 F MAX M2
24 END PGM 95 MM
Define the tool
Tool call
Retract the tool
Pre-position in the working plane
Pre-position in the spindle axis
Set label for program section repeat
Infeed depth in incremental values (in the open)
Approach contour
Point 2: first straight line for corner 2
Insert radius with R = 10 mm, feed rate: 150 mm/min
Move to point 3
Move to point 4
Move to point 5
Move to point 6
Move to point 7
Move to last contour point 1
Depart contour
Return jump to LBL 1; section is repeated a total of 4 times
Retract in the tool axis, end program
X
Y
95 5
95
5
85
40
40 30 70
R10
R30