3 t y pes of digitizing – HEIDENHAIN TNC 426B (280 472) Touch Probe Cycles User Manual
Page 151
HEIDENHAIN TNC 426, TNC 430
139
5.3 T
y
pes of Digitizing
CONTOUR LINES cycle with a rotary axis
Define the starting point in a linear axis and in a rotary axis. Define also
the order and direction of axis approach. The touch probe then
oscillates, for example in the X/C plane. See figure at lower right.
This method also works well for machines that have only two linear
axes (e.g. Z/X) and one rotary axis (e.g. C).
Example: NC blocks
X
Z
C
30 TCH PROBE 5.0 RANGE
31 TCH PROBE 5.1 PGM DIGIT: DATH
32 TCH PROBE 5.2 Z X-500 C+0 Z+0
33 TCH PROBE 5.3 X+50 C+360 Z+85
34 TCH PROBE 5.4 HEIGHT: 100
. . .
60 TCH PROBE 7.0 CONTOUR LINES
61 TCH PROBE 7.1 TIME: 250 X+80 C+0
62 TCH PROBE 7.2 ORDER X-/C+
63 TCH PROBE 7.3 TRAVEL 0.3 L.SPAC: +0.5 PP.INT: 0.5
The direction of rotation defined in Order is valid for all
levels (lines). The direction at the same time defines
whether the workpiece is then machined consistently in
up-cut or in climb milling.