Measuring The Workpiece Zero; Overview - Siemens SINUMERIK 828D Operating Manual
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- Function manual (1799 pages) ,
- Commissioning manual (1167 pages) ,
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Setting up the machine
2.6 Measuring the workpiece zero
2.6
Measuring the workpiece zero
2.6.1
Overview
The reference point for programming a workpiece is always the workpiece zero. You can
determine the workpiece zero on the following workpiece elements:
● Edges, (Page 68)
● Corner (Page 71)
● Pocket and hole (Page 73)
● Spigot (Page 79)
Measuring methods
You can measure the workpiece zero either manually or automatically.
Manual measurement
To measure the zero point manually, you need to traverse your tool manually up to the
workpiece. You can use edge probes, sensing probes, or dial gauges with known radii and
lengths. You can also use any other tool of which you know the radius and length.
The tools used for measuring must not be electronic probes.
Automatic measurement
For automatic measurements always use electronic 3D or mono workpiece probes. You
must calibrate the electronic workpiece probes beforehand.
In the case of automatic measuring, first position the workpiece probe manually. As soon as
you start the process with the <CYCLE START> key, the workpiece probe automatically
approaches the workpiece at measuring feedrate and then returns to the starting position at
rapid traverse.
For automatic workpiece zero measurement, the machine manufacturer must have first
parameterized special measuring functions (e.g. the measuring feedrate).
62
4.
Choose whether you want to calibrate the length or the length and the
diameter.
5.
Press the <CYCLE START> key.
Calibration is automatically executed at the measuring feedrate. The
distance measurements between the machine zero and tool probe are
calculated and stored in an internal data area.
Operating Manual, 06/2009, 6FC5398-7CP20-0BA0
HMI sl Milling
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