Heidenhain TNC 320 (340 55x-03) Touch Probe Cycles User Manual download pdf (Page 19)

HEIDENHAIN TNC 320 19

1.2 Before You Start Working with Touch Probe Cycles

1.2 Before You Start Working with

Touch Probe Cycles

To make it possible to cover the widest possible range of applications

for measuring tasks, machine parameters enable you to determine the

behavior common to all touch probe cycles. If you run several touch

probes on your machine tool, these settings are globally valid for all

touch probes.

In addition, settings are available in the touch probe table that you can

separately define for each touch probe. These settings allow you to

adapt the behavior of each touch probe or a specific application (see

“Touch probe table” on page 22).

Maximum traverse to touch point: DIST in touch

probe table

If the stylus is not deflected within the path defined in DIST, the TNC

outputs an error message.

Set-up clearance to touch point: SET_UP in

touch probe table

In SET_UP you define how far from the defined (or calculated) touch

point the TNC is to pre-position the touch probe. The smaller the value

you enter, the more exactly must you define the touch point position.

In many touch probe cycles you can also define a setup clearance that

is added to SET_UP.

Orient the infrared touch probe to the

programmed probe direction: TRACK in touch

probe table

To increase measuring accuracy, you can use TRACK = ON to have an

infrared touch probe oriented in the programmed probe direction

before every probe process. In this way the stylus is always deflected

in the same direction.

MP6130

MP6140

If you change TRACK = ON, you must recalibrate the

touch probe.

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Heidenhain TNC 320 (340 55x-03) Touch Probe Cycles User Manual Page 19