HEIDENHAIN TNC 620 Programming Station

Multiple-axis machining | Inclined machining (option9)
11
11.3 Inclined machining (option9)
Function
In combination with M128 and the PLANE functions, inclined-tool
machining is possible in a tilted working plane.
Inclined machining can be implemented using the following
functions:
Inclined machining via incremental traversing of a rotary axis
Inclined machining via normal vectors
Inclined machining in a tilted plane is only possible when
using spherical cutters. When using 45° swivel heads and
tilting tables, you can also define the inclination angle as
a spatial angle. Use FUNCTION TCPM for this purpose.
Further information: "Compensating the tool angle of
inclination with FUNCTION TCPM (option9)", Page 469
Inclined machining via incremental traversing of a rotary
axis
Retract the tool
Define any PLANE function; consider the positioning behavior
Activate M128
Use a straight-line block to incrementally position the tool to the
desired inclination angle in the appropriate axis
Example
* - ...
12 L Z+50 R0 FMAX
; Position at clearance height
13 PLANE SPATIAL SPA+0 SPB-45 SPC+0 MOVE DIST50
F1000
; Define and activate the PLANE function
14 FUNCTION TCPM F TCP AXIS POS PATHCTRL AXIS
; Activate TCPM
15 L IB-17 F1000
; Pre-position the tool
* - ...
460
HEIDENHAIN | TNC620 | Klartext Programming User's Manual | 01/2022