Heidenhain CNC Pilot 4290 Manuel d'utilisateur Page 336

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6 TURN PLUS324
6.16 Machining Information
Machining parameter 2 (global technology
parameters) defines whether TURN PLUS
is to account for the tool database in
addition to the current turret assignment.
6.16 Machining Information
6.16.1 Tool Selection, Turret Assignment
The tool selection is determined by:
The machining direction
The contour to be machined
The machining sequence
If the ideal tool is not available,
TURN PLUS first searches for a replacement tool,
then for an ”emergency” tool.
If necessary, TURN PLUS adapts the machining cycle to the
requirements of the replacement or emergency tool. If more than one
tool is suitable for a machining operation, TURN PLUS uses the
optimal tool.
TURN PLUS does not support multiple tools (except tools for drilling
combinations).
Contour recessing, recess turning
Cutting radius must be smaller than the smallest inside radius of the
recess contour, but >= 0.2 mm.
TURN PLUS determines the width of the recessing tool as follows:
The recess contour contains
Paraxial base element with radii on both sides:
SB <= b + 2*r (for different radii: smallest radius)
Paraxial base element without radii or with a radius on one side
only: SB <= b
No paraxial base element: The recessing width is determined
using the ”recessing width divisor (SBD)” (machining parameter 6)
SB: Recessing width
b: Width of base element
r: Radius
Drilling
Depending on the geometry of the bore hole, TURN PLUS determines
the appropriate tool. For centric bore holes, TURN PLUS uses
stationary tools.
Automatic turret assignment
The tool location is selected according to the ”Mount type” and
”Preferred tool” parameters (machine parameter 511, ...). These
parameters are used to determine whether a driven tool is supported
and whether to locate primarily external/internal tools or drilling/milling
tools.
Location type
The ”mount type” (machine parameter 511, ...) differentiates between
different tool holders (see ”
8.1.2
Notes on Tool Data”).
TURN PLUS does not support magazine pocket systems.
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