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Technical<br />
Three fully-adaptable versions<br />
The Chucker system comes in three different versions.<br />
First there is the simple inclined loading (fed by<br />
a vibratory bowl feeder, for example). Then follows a<br />
more elaborate system with integration of a robot.<br />
The third possibility comprises a complete solution<br />
with loading and unloading by robot. These different<br />
versions are completed by diverse peripheral equipment<br />
including palletisation, feeding system, measuring<br />
means or positioning. Chucker machines also<br />
offer the option of increasing maximum machining<br />
diameter to 40 mm 1 . The feeding system is adapted<br />
to the part or the intended family of parts.<br />
The best of both worlds<br />
Manufacturing a Chucker multispindle turning<br />
machine is a challenge taken up by <strong>Tornos</strong> for 50<br />
years! Indeed, ever since the AS then SAS and BS<br />
machines, <strong>Tornos</strong> has always offered this solution to<br />
its customers. This way, machine parks still have different<br />
Chucker models still in activity. More recently,<br />
the manufacturer has also adapted this technology<br />
on to the CNC 632 then MULTIDECO, MultiAlpha and<br />
MultiSigma. If the feed system changes, the features<br />
of the machines do not! Even better! Thanks to the<br />
reduction of operations to be done, machining in<br />
«2x4» on a eight spindle machine is more often possible<br />
and highly cost-effective. The complex counter<br />
operations are of course still possible. In fact, only<br />
the loading is different. In certain cases, it is simply<br />
the best of both worlds!<br />
Large volume required!<br />
Even if numerical multispindle machines are for the<br />
most part dedicated to large series runs, the Chucker<br />
system requires even larger series! Is it really something<br />
which exists on the market? To answer this<br />
question, let’s talk automotive. The global market is<br />
estimated at 60 million vehicles per year. Let’s<br />
1<br />
Based on the parts to be produced and the machines used. For more information,<br />
contact Mr Rocco Martoccia (contact details at the end of this<br />
article).<br />
Machining area showing the loading system. Each project is specific depending on the<br />
parts to be produced. In this example, the positioning of the part in the counter-spindle<br />
is assured by a manipulator gripper.<br />
56 decomagazine 04 / 08
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