HEIDENHAIN TNC 640 (34059x-05) - Manual (Page 560)

Manual operation and setup
15.9 Compensating workpiece misalignment with 3-D touch probe
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TNC 640 | User's Manual
HEIDENHAIN Conversational Programming | 1/2015
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 or probing routine 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.
The TNC logs the probing process in TCHPRMAN.html.
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.