HEIDENHAIN TNC 620 User Manual page 447

12.3 Inclined-tool machining in a tilted
plane (option 9)
Function
In combination with M128 and the new PLANE functions,
tool machining on a tilted machining plane is now possible. Two
possibilities are available for definition:
Inclined-tool machining via incremental traverse of a rotary axis
Inclined-tool machining via normal vectors
Inclined-tool machining in a tilted machining plane
only functions with spherical cutters. With 45°
swivel heads and tilting tables you can also define
the incline angle as a space angle. Use the TCPM
FUNCTION.
Further Information:
page 457
Inclined-tool machining via incremental traverse of a
rotary axis
Retract the tool
Define any PLANE function; consider the positioning behavior
Activate M128
Via a straight-line block, traverse to the desired incline angle in
the appropriate axis incrementally
Example NC blocks
...
12 L Z+50 R0 FMAX
13 PLANE SPATIAL SPA+0 SPB-45 SPC+0 MOVE ABST50
F1000
14 M128
15 L IB-17 F1000
...
HEIDENHAIN | TNC 620 | Conversational Programming User's Manual | 10/2015
Inclined-tool machining in a tilted plane
inclined-
FUNCTION TCPM (option 9),
Position at clearance height
Define and activate the PLANE function
Activate M128
Set the incline angle
Define machining in the tilted working plane
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12.3
447