Tool Monitoring - HEIDENHAIN TNC 640 User Manual

Hide thumbs Also See for TNC 640:

Table of Contents

Tool monitoring

For some cycles for workpiece inspection you can have the TNC

perform tool monitoring. The TNC then monitors whether

The tool radius should be compensated because of the

deviations from the nominal value (values in Q16x).

The deviations from the nominal value (values in Q16x) are

greater than the tool breakage tolerance.

Tool compensation

This function works only:

If the tool table is active.

If tool monitoring is switched on in the cycle (enter

a tool name or Q330 unequal to 0). Select the tool

name input by soft key. The TNC no longer displays

the right single quotation mark.

If you perform several compensation measurements,

the TNC adds the respective measured deviation to the

value stored in the tool table.

Milling tool:

If you reference parameter Q330 to a milling tool,

the appropriate values are compensated in the following way: the

TNC basically always compensates the tool radius in column DR of

the tool table, even if the measured deviation is within the stated

tolerance. You can inquire whether re-working is necessary via

parameter Q181 in the NC program (Q181=1: must be reworked).

Turning tool:

(only applies to Cycles 421, 422, 427) If you

reference parameter Q330 to a turning tool, the appropriate values

in row DZL and DXL, respectively, are compensated. The TNC

monitors the breakage tolerance which is defined in column

LBREAK.You can inquire whether re-working is necessary via

parameter Q181 in the NC program (Q181=1: must be reworked).

Touch Probe Cycles: Automatic Workpiece Inspection | Fundamentals

HEIDENHAIN | User's manual for cycle programming | 10/2017