HEIDENHAIN TNC 640 (34059x-02) ISO programming - Manual (Page 480)

Manual operation and setup
15.8 Compensating workpiece misalignment with 3-D touch probe
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TNC 640 | User's Manual for DIN/ISO Programming | 5/2013
Identifying basic rotation
Select the probe function by pressing the
PROBING ROT soft key
Position the touch probe at a position near the first
touch point
Select the probe direction perpendicular to the
angle reference axis: Select the axis by soft key
Start the probing procedure: Press the machine
START button
Position the touch probe at a position near the
second touch point
To probe the workpiece, press the machine START
button. The TNC determines the basic rotation and
displays the angle after the dialog
Rotation angle
Activate basic rotation: Press the SET BASIC
ROTATION soft key
Terminate the probe function by pressing the END
soft key
Saving a basic rotation in the preset table
After the probing process, enter the preset number in which the
TNC is to save the active basic rotation in the
Number in table:
input box
Press the BASIC ROT. IN PRESETTAB. soft key to save the basic
rotation in the preset table
Compensation of workpiece misalignment by rotating
the table
To compensate the identified misalignment by a rotary table
position, press the ALIGN ROTARY TABLE soft key after the
probing process
Position all axes to avoid a collision before table
rotation. The TNC outputs an additional warning
before table rotation.
If you want to set the datum in the rotary table axis, press the
SET TABLE ROTATION soft key.
You can also save the misalignment of the rotary table in any
line of the Preset table. Enter the line number and press the
TABLEROT IN PRESETTAB. soft key. The TNC saves the angle
in the offset column of the rotary table, e.g. in the C_OFFS
column with a C axis. If necessary, the view in the Preset table
has to be changed with the BASIS-TRANSFORM./OFFSET soft
key to display this column.