Defining The Tool - HEIDENHAIN TNC 640 User Manual

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Cycles: Special Functions | INTERPOLATION TURNING, CONTOUR FINISHING (Cycle 292, DIN/ISO: G292,

Defining the tool

Overview
Depending on the entry for parameter Q560 you can either mill
(Q560=0) or turn (Q560=1) the contour. For each of the two
machining modes, there are different possibilities to define the tool
in the tool table. This section describes the different possibilities:
Spindle coupling off, Q560=0
Milling: Define the milling cutter in the tool table as usual by
entering the length, radius, toroid cutter radius, etc.
Spindle coupling on, Q560=1
Turning: The geometry data of the turning tool are converted to
the data of a milling cutter. You now have the following three
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 your turning tool as
a milling cutter in the tool table (tool.t). In this case the following
data from the tool table a taken into account (including delta
values): length (L), radius (R), and corner radius (R2). 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 equals Q336, and for
inside machining the spindle orientation equals Q336+180.
Danger of collision!
Collision may occur between the tool holder and workpiece
with inside machining. The tool holder is not monitored. If
the tool holder results in a larger rotational diameter than the
cutter does, there is a danger of collision.
Select the tool holder to ensure that it does not result in a
larger rotational diameter than the cutter does
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NOTICE
HEIDENHAIN | User's manual for cycle programming | 10/2017
software option 96)