HEIDENHAIN TNC 640, User Manual, Page: 611 / 948

Multiple-Axis Machining | The PLANE function: Tilting the working plane (option 8)
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HEIDENHAIN | TNC 640 | Conversational Programming User's Manual | 10/2017
611
Example for machine with rotary table C and tilting table A.
Programmed function:
PLANE SPATIAL SPA+0 SPB+45 SPC+0
Limit switch Starting position SEQ Resulting axis position
None A+0, C+0 not prog. A+45, C+90
None A+0, C+0 + A+45, C+90
None A+0, C+0 – A–45, C–90
None A+0, C–105 not prog. A–45, C–90
None A+0, C–105 + A+45, C+90
None A+0, C–105 – A–45, C–90
–90 < A < +10 A+0, C+0 not prog. A–45, C–90
–90 < A < +10 A+0, C+0 + Error message
None A+0, C–135 + A+45, C+90
Selecting the type of transformation (entry optional)
The transformation types
COORD ROT
and
TABLE ROT
influence
the orientation of the working plane coordinate system through the
axis position of a so-called free rotary axis.
Any rotary axis becomes a free rotary axis with the following
constellation:
the rotary axis has no effect on the tool angle of inclination
because the rotation axis and tool axis are parallel in the tilting
situation
the rotary axis is the first rotary axis in the kinematic chain
starting from the workpiece
The effect of the transformation types
COORD ROT
and
TABLE ROT
therefore depends on the programmed spatial angles and the
machine kinematics.
Programming notes:
If no free rotary axis is created in a tilting situation,
the
COORD ROT
and
TABLE ROT
transformation
types have no effect
With the
PLANE AXIAL
function the
COORD ROT
and
TABLE ROT
transformation types have no effect