Cycle Parameters - HEIDENHAIN TNC 640 User Manual

Cycles: Special Functions | COUPLING INTERPOLATION TURNING (cycle 291, DIN/ISO: G291, software
option 96)

Cycle parameters

Q560 Spindle coupling (0=off, 1=on)?: Specify
whether the tool spindle is coupled to the position
of the linear axes. If spindle coupling is active,
the tool's cutting edge is oriented to the center of
turning.
0: Spindle coupling off
1: Spindle coupling on
Q336 Angle for spindle orientation?: The TNC
orients the tool to this angle before starting the
machining operation. If you work with a milling
tool, enter the angle in such a way that a tooth is
turned towards the center of rotation. If you work
with a turning tool, and have defined the value
"ORI" in the turning tool table (toolturn.trn), then
it is taken into account for the spindle orientation.
Input range 0.000 to 360.000
Q216 Center in 1st axis? (absolute): Center of
rotation in the reference axis of the working plane.
Input range -99999.9999 to 99999.9999
Q217 Center in 2nd axis? (absolute): Center of
rotation in the minor axis of the working plane.
Input range -99999.9999 to 99999.9999
Q561 Convert from turning tool (0/1): Only
relevant if you define the turning tool in the turning
tool table (toolturn.trn). With this parameter you
decide whether the value XL of the turning tool
will be interpreted as radius R of a milling tool.
0: No change; the turning tool is interpreted as it
described in the turning tool table (toolturn.trn). In
this case you may not use radius compensation
RR or RL. Furthermore, you must describe the
movement of the tool center path TCP without
spindle coupling when programming. This kind of
programming is much more difficult.
1: The value XL from the turning tool table
(toolturn.trn) will be interpreted as a radius
R from a milling tool table. This makes it
possible to use radius compensation RR and RL
when programming your contour. This kind of
programming is recommended.
HEIDENHAIN | User's manual for cycle programming | 10/2017
NC blocks
64 CYCL DEF 291
COUPLG.TURNG.INTERP.
Q560=1 ;SPINDLE COUPLING
Q336=0 ;ANGLE OF SPINDLE
Q216=50 ;CENTER IN 1ST AXIS
Q217=50 ;CENTER IN 2ND AXIS
Q561=1 ;TURNING TOOL
CONVERSION
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