Inclined Machining Using Normal Vectors - HEIDENHAIN TNC 620 User Manual

Multiple-axis machining | Inclined machining (option 9)

Inclined machining using normal vectors

Application
When operating in inclined machining mode using normal vectors,
the control performs a simultaneous movement in three axes. If the
miscellaneous function M128 or the FUNCTION TCPM function is
used, the position of the tool tip will be maintained during positioning
of the rotary axes.
Further information: "Retaining the position of the tool tip during the
positioning of tilting axes (TCPM): M128 (option 9)", Page 465
Further information: "Compensating the tool angle of inclination
with FUNCTION TCPM (option 9)", Page 469
To execute an NC program with LN blocks:
Retract the tool
Define any PLANE function; consider the positioning behavior
Activate M128
Execute NC program with LN blocks in which the tool direction is
defined by a vector
Example
...
12 L Z+50 R0 FMAX
13 PLANE SPATIAL SPA+0 SPB+45 SPC+0 MOVE DIST50
F1000
14 M128
15 LN X+31.737 Y+21.954 Z+33.165 NX+0.3 NY+0 NZ
+0.9539 F1000 M3
...
HEIDENHAIN | TNC 620 | Klartext Programming User's Manual | 01/2022
Position at clearance height
Define and activate the PLANE function
Activate M128
Set the incline angle with the normal vector
Define machining in the tilted working plane
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