Measurement; Measuring The Workpiece Zero - Siemens SINUMERIK 840D Operation/Programming Manual

3
10.04
3.9

Measurement

3.9.1 Measuring the workpiece zero

 Siemens AG, 2004. All rights reserved
SINUMERIK 840D/840Di/810D Operation/Programming ShopMill (BAS) – 10.04 Edition
The "Workpiece zero" function is used to determine the workpiece
zero in a program by means of an electronic measuring probe.
For example, if you want to produce several workpieces, an offset
may arise between the old and the new workpiece zero when
clamping the next workpiece in the vise. You can measure the
workpiece edges to determine the new workpiece zero and save it in
a work offset or in a GUD.
X0 new
X0 old
Probe
Workpiece
Y
X
Workpiece clamping with offset in relation to previous clamping
Even if you want to machine several clamped workpieces in parallel,
you can determine the zero for each workpiece first.
Y
Probe
Workpiece 1
Workpiece 2
Several clamped workpieces
You can use electronic measuring probes exclusively to determine the
workpiece zero within a program. These must be calibrated
beforehand (see Sec. "Calibrating an electronic measuring tool").
These measuring probes must always be specified as 3D probe in the
tool management.
Programming with ShopMill

3.9 Measurement

Clamping
on vise
Offset
Workpiece 3
Workpiece 4
X
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