HEIDENHAIN TNC 640, User Manual, Page: 660 / 948

Pallet Management | Tool-oriented machining
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HEIDENHAIN | TNC 640 | Conversational Programming User's Manual | 10/2017
14.3 Tool-oriented machining
Fundamentals
Application
Refer to your machine manual.
Tool-oriented machining is a machine-dependent
function. The standard functional range is described
below.
Tool-oriented machining allows you to machine several workpieces
together even on a machine without pallet changer, which reduces
tool-change times.
Limitation
NOTICE
Danger of collision!
Not all pallet tables and NC programs are suitable for tool-
oriented machining. With tool-oriented machining, the control
no longer executes the NC programs continuously, but divides
them at the tool calls. The division of the NC programs allows
functions that were not reset to be effective across programs
(machine states). This leads to a danger of collision during
machining!
Consider the stated limitations
Adapt pallet tables and NC programs to the tool-oriented
machining
Reprogram the program information after each tool in
every NC program (e.g.
M3
or
M4
).
Reset special functions and miscellaneous functions
before each tool in every NC program (e. g.
Tilt the
working plane
or
M138
)
Carefully test the pallet table and associated NC programs in
the
Program run, single block
operating mode
The following functions are not permitted:
FUNCTION TCPM, M128
M144
M101
M118
Changing the pallet preset
The following functions require special attention, particularly for
mid-program startup:
Changing the machine statuses with a miscellaneous function
(e.g. M13)
Writing to the configuration (e.g. WRITE KINEMATICS)
Traverse range switchover
Cycle 32 Tolerance
Cycle 800
Tilting the working plane