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

2
Operation

2.6 Measuring workpiece zero

2.6

Measuring workpiece zero

Manual measurement
Automatic measurement
2-62
The reference point for programming a workpiece is always the
workpiece zero. You can determine the workpiece zero on the
following workpiece elements:
•
Edges
•
Corner
•
Pocket/hole
•
Spigot
•
Plane
You can measure the workpiece zero either manually or
automatically.
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 of type 3D probe.
For automatic measurement always use electronic 3D measuring
probes, which you must first calibrate.
When measuring automatically, first position the tool manually. As
soon as you start the process with the "Cycle Start" key, the 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 set up the measuring cycles. This
includes defining the measuring feedrate in the machine data.
Please refer to the machine manufacturer's instructions.
To obtain the desired measuring results, you must keep to the
measuring point sequence shown in the help displays.
You can reject measuring points and then measure them again. This
is done by pressing the softkey that is currently active (measured
value). In manual measurement, you can reset values in any order but
in automatic measurement, only in reverse order.
SINUMERIK 840D/840Di/810D Operation/Programming ShopMill (BAS) – 10.04 Edition
2
10.04
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