User's Manual TNC 360 (from 259 900-11) - heidenhain

2 Manual Operation and Setup
2.4 3D Touch Probe Systems
3D Touch probe applications
The TNC provides touch functions for application of a HEIDENHAIN 3D
touch probe. Typical applications for the touch probe systems are:
• Compensating workpiece misalignment
(basic rotation)
• Datum setting
• Measuring:
- Lengths and positions on the workpiece
- Angles
- Circle radii
- Circle centers
• Measurements under program control
• Digitizing 3D surfaces (option)
TOUCH
PROBE
Fig. 2.7: HEIDENHAIN TS 120 threedimensional
touch probe
The TNC must be specially prepared by the machine tool builder for the use of a 3D touch probe.
After you press the machine START button, the touch probe begins
executing the selected probe function. The machine manufacturer sets
the feed rate at which the probe approaches the workpiece. When the 3D
touch probe contracts the workpiece, it
• transmits a signal to the TNC, which stores the coordinates of the
probed position
• stops moving
• returns to its starting position in rapid traverse
To select the touch probe menu:
MANUAL OPERATION
or
ELECTRONIC HANDWHEEL
CALIBRATION EFFECTIVE LENGTH
CALIBRATION EFFECTIVE RADIUS
BASIC ROTATION
SURFACE = DATUM
CORNER = DATUM
CIRCLE CENTER = DATUM
Select the menu of touch probe functions.
F max
TNC 360 2-9
F
Fig. 2.8: Feed rates during probing
F