Measuring The Tool; Measuring A Tool Manually - Siemens SINUMERIK 840D sl Operating Manual

2.5

Measuring the tool

The geometries of the machining tool must be taken into consideration when executing a
part program. These are stored as tool offset data in the tool list. Each time the tool is called,
the control considers the tool offset data.
When programming the part program, you only need to enter the workpiece dimensions from
the production drawing. After this, the controller independently calculates the individual tool
path.
You can determine the tool offset data, i.e. the length and radius or diameter, either manually
or automatically with tool probes.
See also
Tool dimensioning (Page 643)
Measuring the tool (Page 655)
2.5.1

Measuring a tool manually

When measuring manually, traverse the tool manually to a known reference point in order to
determine the tool dimensions in the X and Z directions. The control system then calculates
the tool offset data from the position of the tool carrier reference point and the reference
point.
Reference point
The workpiece edge is used as the reference point when measuring length X and length Z.
The chuck of the main or counterspindle can also be used when measuring in the Z
direction.
You specify the position of the workpiece edge during the measurement.
Note
Lathes with B axis
For lathes with a B axis, execute the tool change and alignment in the T, S, M window before
performing the measurement.
Turning
Operating Manual, 02/2012, 6FC5398-8CP40-3BA0
Setting up the machine
2.5 Measuring the tool
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