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HEIDENHAIN TNC 407 (280 580) User Manual User Manual

Page 276

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9-9

TNC 425/TNC 415 B/TNC 407

9

3D Touch Probes

• Select the probe direction perpendicular to the angle reference axis when measuring workpiece misalignment.
• To ensure that the basic rotation is calclulated correctly during program run, program both coordinates of the

working plane in the first positioning block.

0

e.g.

ENT

I

I

9.2

Touch Probe Cycles in the MANUAL and ELECTRONIC HANDWHEEL Operating Modes

PA

A

B

2

1

Compensating workpiece misalignment

The TNC electronically compensates misalignment
by computing a "basic rotation". You set the rotation
angle to the desired angle with respect to the
reference axis in the working plane (see page 1-13).

Press the PROBING ROT soft key.

ROTATION ANGLE =

Enter the nominal value of the ROTATION ANGLE.

Move the ball tip to a starting position

A

near the first touch point

1

.

or

X + X – Y + Y –

Select the probe direction (perpendicular to the angle reference axis).

Probe the workpiece.

Move the ball tip to a starting position

B

near the second touch point

2

.

Probe the workpiece.

A basic rotation is kept in non-volatile storage and is effective for all
subsequent program runs and graphic simulation.

Fig. 9.10:

Basic rotation of a workpiece, probing procedure for
compensation (right); The dash line is the nominal position;
the angle PA is being compensated.