HEIDENHAIN TNC 410 User Manual

Page 73

5 Programming: Tools

To program the calibration cycle, press the TOUCH
PROBE key in the Programming and Editing mode of
operation.

Select measuring cycle 31 TT TOOL LENGTH: Press
TOOL LENGTH soft key

Measure tool=0 / Check tool=1: Select whether the
tool is to be measured for the first time or whether a
tool that has already been measured is to be
inspected. If the tool is being measured for the first
time, the TNC overwrites the tool length L in the
central tool file TOOL.T by the delta value DL = 0. If
you wish to inspect a tool, the TNC compares the
measured length with the tool length L that is stored
in TOOL.T. It then calculates the positive or negative
deviation from the stored value and enters it into
TOOL.T as the delta value DL. The deviation can also
be used for Q parameter Q115. If the delta value is
greater than the permissible tool length tolerance for
wear or break detection, the TNC will lock the tool
(status L in TOOL.T).

Parameter number for result?: Parameter number in
which the TNC stores the status of the measurement:
0.0:

Tool is within tolerance

1.0:

Tool is worn out (LTOL exceeded)

2.0:

Tool is broken (LBREAK exceeded)

If you do not wish to use the result of measurement
within the program, answer the dialog prompt with
NO ENT.

Clearance height: Enter the position in the spindle axis
at which there is no danger of collision with the
workpiece or fixtures. The clearance height is
referenced to the active workpiece datum. If you enter
such a small clearance height that the tool tip would
lie below the level of the probe contact, the TNC
automatically positions the tool above the level of the
probe contact (safety zone from MP6540)

Probe the teeth? 0=No / 1=Yes:
Choose whether or not the TNC is to measure the
individual teeth.

Resulting NC blocks for measuring a rotating tool
for the first time and storing the status in Q1

6 TOOL CALL 12 Z
7 TCH PROBE 31.0 CAL. tool length
8 TCH PROBE 31.1 CHECK: 0 Q1
9 TCH PROBE 31.2 height: +120
10 TCH PROBE 31.3 PROBING THE TEETH:0

Resulting NC blocks for inspecting a tool and
measuring the individual teeth, but not saving the
status

6 TOOL CALL 12 Z
7 TCH PROBE 31.0 CAL. tool length
8 TCH PROBE 31.1 check: 1
9 TCH PROBE 31.2 height: +120
10 TCH PROBE 31.3 PROBING THE TEETH:1

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