Positioning The Axes Of Rotation - HEIDENHAIN TNC 320 User's Manual For Cycle Programming

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WORKING PLANE (Cycle 19, DIN/ISO: G80, software option 1) 10.9

Positioning the axes of rotation

Refer to your machine manual.
The machine tool builder determines whether Cycle
19 positions the axes of rotation automatically or
whether they must be positioned manually in the
program.
Manual positioning of rotary axes
If the rotary axes are not positioned automatically in Cycle 19, you
must position them in a separate L block after the cycle definition.
If you use axis angles, you can define the axis values right in the L
block. If you use spatial angles, then use the Q parameters Q120
(A-axis value), Q121 (B-axis value) and Q122 (C-axis value), which
are described by Cycle 19.
For manual positioning, always use the rotary axis
positions stored in Q parameters Q120 to Q122.
Avoid using functions, such as M94 (modulo rotary
axes), in order to avoid discrepancies between
the actual and nominal positions of rotary axes in
multiple definitions.
Example NC blocks:
10 L Z+100 R0 FMAX
11 L X+25 Y+10 R0 FMAX
12 CYCL DEF 19.0 WORKING PLANE
13 CYCL DEF 19.1 A+0 B+45 C+0
14 L A+Q120 C+Q122 R0 F1000
15 L Z+80 R0 FMAX
16 L X-8.5 Y-10 R0 FMAX
HEIDENHAIN | TNC 320 | User's manual for cycle programming | 9/2016
Define the spatial angle for calculation of the compensation
Position the rotary axes by using values calculated by Cycle
19
Activate compensation for the spindle axis
Activate compensation for the working plane
10
267

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