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Operation 10.04
2.13 Tools and tool offsets
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ï›™ Siemens AG, 2004. All rights reserved
2-152 SINUMERIK 840D/840Di/810D Operation/Programming ShopMill (BAS) – 10.04 Edition
The wear data entered is added to the radius but subtracted from the
tool length. A positive differential value for the radius therefore
corresponds to an oversize (e.g. for subsequent grinding).
2.13.9 Activating tool monitoring
ShopMill allows you to monitor the tool life of the tools automatically to
ensure constant machining quality.
You can also disable tools that you no longer want to use, identify
them as oversize or assign them permanently to a magazine location.
Tool monitoring can be activated via a machine data code.
Please refer to the machine manufacturer's instructions.
Tool life (T) With the tool life T (Time), the service life for a tool with machining
feedrate is monitored in minutes. When the remaining tool life is = 0,
the tool is set to "disabled". The tool is not put into operation on the
next tool change. If a replacement tool is available, it is inserted in its
place.
Tool life is monitored on the basis of the selected tool cutting edge.
Count (C) With the count C, on the other hand, the number of times a tool is
attached to a spindle is counted. The tool is also disabled in this case,
when the remainder reaches "0".
Wear (W)
With wear W, the greatest value in the wear parameters ∆ Length X,
∆ Length Z, or ∆ Radius or ∆ ∅ in the wear list is monitored. Here, too,
the tool is disabled if one of the wear parameters reaches the value
for wear W.
The wear monitoring function must be set up by the machine
manufacturer.
Please refer to the machine manufacturer's instructions.
Prewarning limit The prewarning limit specifies a tool life, workpiece count or wear at
which the first warning is displayed.
The value for output of a warning due to the wear stage reached is
calculated from the difference between the maximum wear and the
warning limit entered.
Disabled (G) Individual tools can also be disabled manually if you no longer want to
use them for workpiece machining.
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