HEIDENHAIN TNC 640 (34059x-05) Cycle programming - Manual (Page 298)

Cycles: Special Functions
11.7 COUPLING TURNING INTERPOLATION (Cycle 291, DIN/ISO: G291,
software option 96)
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TNC 640 | User's Manual Cycle Programming | 1/2015
Defining the tool
Overview
Depending on the setting of the parameter Q560, you can activate
(Q560=1) or deactivate (Q560=0) the COUPLING TURNING
INTERPOLATION cycle.
Spindle coupling off, Q560=0
The tool spindle is not coupled to the position of the linear axes.
Q560=0: Deactivate the
COUPLING TURNING
INTERPOLATION cycle!
Spindle coupling on, Q560=1
A turning operation is executed with the tool spindle coupled to
the position of the linear axes. If you set the parameter Q560 to 1,
there are different possibilities to define the tool in the tool table.
This section describes the different possibilities:
Define a turning tool in the tool table (tool.t) as a milling tool
Define a milling tool in the tool table (tool.t) as a milling tool (for
subsequent use as a turning tool)
Define a turning tool in the turning tool table (toolturn.trn)
These three possibilities of defining the tool are described in more
detail below:
Define a turning tool in the tool table (tool.t) as a milling
tool
If you are working without option 50, define the turning tool
in the tool table (tool.t) as a milling cutter. In this case, the
following data from the tool table are taken into account
(including delta values): Length (L), radius (R) and toroid cutter
radius (R2). The geometry data of the turning tool are converted
to the data of a milling cutter. Orient the turning tool to the
spindle center and enter this spindle orientation angle in the
parameter Q336 of the cycle. For outside machining, the spindle
orientation Q336 is used; for inside machining, the spindle
orientation is calculated from Q336+180.
The tool holder is not monitored! If the rotation
diameter resulting from the tool holder is greater
than that from the cutting edge, the machine
operator must take this into account for inside
machining.
Define a milling tool in the tool table (tool.t) as a milling
tool (for subsequent use as a turning tool)
You can use a milling cutter for interpolation turning. In this
case, the following data from the tool table are taken into
account (including delta values): Length (L), radius (R) and toroid
cutter radius (R2). Orient a cutting edge of the milling cutter to
the spindle center and enter this angle in the parameter Q336.
For outside machining, the spindle orientation Q336 is used;
for inside machining, the spindle orientation is calculated from
Q336+180.