reference report on gear hobbing at zf ... - Artis MARPOSS
reference report on gear hobbing at zf ... - Artis MARPOSS
reference report on gear hobbing at zf ... - Artis MARPOSS
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Reference Report Gear <strong>hobbing</strong> Versi<strong>on</strong> 4-2013_web<br />
Liebherr-Verzahntechnik<br />
The Liebherr <strong>gear</strong>-cutting machines, Type LC, bel<strong>on</strong>g to the<br />
machine park for producing <strong>gear</strong>boxes <strong>at</strong> ZF in Saarbrücken. In<br />
additi<strong>on</strong> to the producti<strong>on</strong> machines for the automobile industry,<br />
the portfolio of Liebherr-Verzahntechnik also includes universal<br />
machines for large workpieces and special machines for fine<br />
machining. For the process m<strong>on</strong>itoring <strong>on</strong> milling machines, the<br />
machine manufacturer already has already used ARTIS<br />
systems for many years. The <strong>gear</strong> <strong>hobbing</strong> functi<strong>on</strong> is of<br />
particular interest for machine types<br />
which machine workpieces with a diameter of up to 500 mm. Dr.<br />
Oliver Winkel is head of the area of applic<strong>at</strong>i<strong>on</strong> technology /<br />
technology development for <strong>gear</strong> milling <strong>at</strong> Liebherr-<br />
Verzahntechnik. His c<strong>on</strong>clusi<strong>on</strong>: "The CTM system from ARTIS<br />
assists our customers to ensure the daily number of units of<br />
<strong>gear</strong>wheels required and, simultaneously, protects the valuable<br />
milling tools and machines. A breakage not <strong>on</strong>ly means<br />
unplanned tool costs and rejects, but also downtimes in the<br />
producti<strong>on</strong> and, in the worst case, costly damage to the <strong>gear</strong><br />
<strong>hobbing</strong> machines. Briefly, the customer can reliably deploy the<br />
capabilities of the machine and tool."<br />
At Liebherr-Verzahntechnik, the m<strong>on</strong>itoring system CTM V5 is<br />
utilized, signal transmissi<strong>on</strong> is carried out without a sensor, via<br />
digital performance d<strong>at</strong>a (DTA, Digital Torque Adapter) th<strong>at</strong> is<br />
directly exported from the c<strong>on</strong>troller via a Profibus c<strong>on</strong>necti<strong>on</strong>.<br />
Up to the present, the new fe<strong>at</strong>ures for <strong>gear</strong> <strong>hobbing</strong> have been<br />
successfully utilized <strong>on</strong> Liebherr milling machines with Siemens<br />
840D SL c<strong>on</strong>trollers. The system also functi<strong>on</strong>s <strong>on</strong> older<br />
machines with Siemens 840D PL or other c<strong>on</strong>trollers. There is<br />
also an opti<strong>on</strong> for analog measurement of the effective power.<br />
The tooth wheels for the autom<strong>at</strong>ic<br />
transmissi<strong>on</strong>s are manufactured <strong>on</strong> these<br />
<strong>gear</strong> cutting machines LC120 from<br />
Liebherr. Photo: Liebherr-Verzahntechnik<br />
Safe milling processes and an optimized tool<br />
utiliz<strong>at</strong>i<strong>on</strong> – supported by ARTIS process<br />
m<strong>on</strong>itoring. Photo: Liebherr-Verzahntechnik<br />
A detailed list of addresses can be found under:<br />
www.marposs.com<br />
ARTIS GmbH • Sellhorner Weg 28-30 • 29646 Bispingen-Behringen • Tel +49 (0) 51 94 9 50-0 • info@artis.marposs.com • www.artis.de
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