Measuring 3-d basic rotation, Or aligning a plane ("measuring 3-d – HEIDENHAIN TNC 620 (81760x-02) ISO programming User Manual
Page 479
Compensating workpiece misalignment with 3-D touch probe
(option 17)
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TNC 620 | User's ManualDIN/ISO Programming | 2/2015
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Measuring 3-D basic rotation
The misalignment of any tilted plane can be measured by probing
3 positions. The
Probe plane function enables you to measure this
misalignment and save it as a 3-D basic rotation in the preset table.
Observe the following when selecting the touch
points:
The sequence and position of the touch points
determines how the TNC calculates the direction of
the plane.
With the first two points you specify the direction
of the reference axis. Define the second point in the
positive direction of the desired reference axis. The
position of the third point determines the direction
of the minor axis and tool axis. Define the third
point in the positive Y axis of the desired workplace
coordinate system.
1st point: On the reference axis
2nd point: On the reference axis, in a positive
direction from the first point
3rd point: On the minor axis, in a positive
direction of the desired workpiece coordinate
system
Optionally inputting a datum angle enables you to define the
nominal direction of the probed plane.
Select the probing function: Press the
PROBING
PL soft key. The TNC then displays the current 3-D
basic rotation
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
Position the touch probe near the third touch point
Probing: Press the machine START button. The
TNC measures the 3-D basic rotation and displays
the values for SPA, SPB and SPC related to the
active workpiece coordinate system
If required, enter the datum angle
Activate 3-D basic rotation
Press the
SET BASIC ROTATION soft key
Saving a 3-D basic rotation in the preset table
Press the
BASIC ROT. IN PRESET TABLE soft key