HEIDENHAIN TNC 410 User Manual

Page 74

HEIDENHAIN TNC 410

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

7 TOOL CALL 12 Z
8 TCH PROBE 32.0 CAL. tool radius
9 TCH PROBE 32.1 CHECK: 0 Q1
10 TCH PROBE 32.2 height: +120
11 TCH PROBE 32.3 PROBING THE TEETH:0

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

7 TOOL CALL 12 Z
8 TCH PROBE 32.0 CAL. tool radius
9 TCH PROBE 32.1 check: 1
10 TCH PROBE 32.2 height: +120
11 TCH PROBE 32.3 PROBING THE TEETH:1

Measuring the tool radius

Before measuring a tool for the first time, enter the following data
on the tool into the tool table TOOL.T: the approximate radius, the
approximate length, the number of teeth, and the cutting direction.

The tool radius is measured with the cycle TCH PROBE 32 TOOL
RADIUS. Depending on the input parameters you can measure the
radius of a tool by:

■

Measuring the tool while it is rotating

■

Measuring the tool while it is rotating and subsequently
measuring the individual teeth.

Measuring cycle
The TNC pre-positions the tool to be measured to a position at the
side of the touch probe head. The distance from the tip of the
milling tool to the upper edge of the touch probe head is defined in
MP6530. The TNC probes the tool radially while it is rotating. If you
have programmed a subsequent measurement of individual teeth,
the TNC measures the radius of each tooth with the aid of oriented
spindle stops.

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

Select measuring cycle 32 TT TOOL RADIUS: Press
TOOL RADIUS 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 radius R in the
central tool file TOOL.T by the delta value DR = 0. If
you wish to inspect a tool, the TNC compares the
measured radius with the tool radius R 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 DR. The deviation can also
be used for Q parameter Q116. If the delta value is
greater than the permissible tool radius tolerance for
wear or break detection, the TNC will lock the tool
(status L in TOOL.T).

5.4 T

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