Fundamentals, Measuring In Jog And Automatic - Siemens SINUMERIK 828D Manual

General information on workpiece production
2.6
Measuring in JOG
When measuring in JOG (setup), the machine is prepared for machining. This involves
determining the dimensions of the workpiece and the tool which are still unknown.
The reference point for programming a workpiece is always the workpiece zero. When setting-up
a clamped workpiece its workpiece zero is determined. The workpiece elements - edge, corner,
pocket/hole, lug, plane - can be used when setting-up. When completed, the workpiece zero is
defined as the result of the linear and rotary compensations of the coordinate system that have
been determined.
Measuring in AUTOMATIC (process measuring)
In process measuring, workpiece tolerances are determined within the production process and
tool parameters are monitored. The nominal dimensions of the tool and workpiece are already
known.
Measuring cycles/functions for all measuring tasks
Examples of measuring
cycles/functions
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Fundamentals, measuring in JOG and AUTOMATIC

Manual measurement is used to prepare the machine for machining.
Manual measurement is used to determine unknown workpiece or tool geometries.
The operator interacts with the machine during manual mode in order to perform the
measurement.
Process measuring is performed to check that the workpiece measurements conform to
specifications.
Process measuring is performed to correct known workpiece and tool geometries.
The measurement is performed by calling a measuring cycle in the machining program.
The SINUMERIK features an extensive
pool of practical measuring cycles/
functions for measuring tasks in JOG
and AUTOMATIC modes. These
measuring cycles/functions enable you
to measure workpieces and tools using
a graphically supported process.
The measuring tasks are performed
with switching probes and
dynamometers or laser measuring
systems.
When measuring in JOG, the
measuring functions can also be used
with edge probes or tools with known
dimensions. During the measurement,
the measuring points are manually
approached and the current position is
saved in the measuring function via a
softkey.
2.6
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