HEIDENHAIN TNC 640 (34059x-05) - Manual (Page 458)

Programming: Multiple Axis Machining
12.2 The PLANE Function: Tilting the working plane (Software Option 8)
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TNC 640 | User's Manual
HEIDENHAIN Conversational Programming | 1/2015
Tilt the working plane without rotary axes
This feature must be enabled and adapted by the
machine tool builder. Refer to your machine manual.
The machine tool builder must take into account e.g.
the precise angle of a mounted angular head in the
kinematics description.
You can also align the programmed working plane perpendicular to
the tool without rotary axes, e.g. for adapting the working plane
for a mounted angular head.
Use the
PLANE SPATIAL function and the STAY positioning
behavior to swivel the working plane to the angle specified by the
machine tool builder.
Example of mounted angular head with permanent tool direction Y:
NC syntax
TOOL CALL 5 Z S4500
PLANE SPATIAL SPA+0 SPB-90 SPC+0 STAY
The swivel angle must be precisely adapted to the
tool angle, otherwise the TNC outputs an error
message.