Calibrating The Electronic Workpiece Probe - Siemens SINUMERIK 828D Operating Manual

Setting up the machine
2.6 Measuring the workpiece zero
2.6.12

Calibrating the electronic workpiece probe

When the electronic probes are attached to the spindle, clamping tolerances usually occur.
This can lead to measurement errors.
In addition, you need to determine the trigger points of the probe relative to the spindle
center (trigger points).
Therefore, you need to calibrate the electronic probe. The radius is calibrated in a hole, the
length is calibrated on a surface. For the hole, you can use a hole in the workpiece or use a
ring gauge. The radius of the workpiece probe ball and its length 1 must be stored in the tool
list.
Procedure
88
2. Press the "Rapid traverse" softkey to enter the feedrate in rapid
traverse.
- OR -
Enter the desired feedrate into input field "F".
3. Press the <CYCLE START> key.
The rotary axis is repositioned.
1. Load the workpiece probe into the spindle.
2. Move the workpiece probe into the hole and position it in the
approximate center of the hole.
3. Select "JOG" mode in the "Machine" operating area.
4.. Press the "Workpiece Zero" and "Calibrate Probe" softkeys.
The "Calibrate Probe" window opens.
5. Press the "Length" or "Radius" softkey.
6. In PL, select the working plane (e.g. G17...G19) and the effective work
offset during calibration (G54...G57).
7. When calibrating the length of the workpiece probe in Z0, enter the
reference point of the surface based on the active work offset (e.g. of
the workpiece or the machine table).
When calibrating the probe ball radius, enter a ∅ corresponding the
diameter of the calibration bore.
Operating Manual, 06/2009, 6FC5398-7CP20-0BA0
HMI sl Milling