Protection bellows
DynaSynchro
HEMA Maschinen- und Apparateschutz
Large high-speed covers for machine tools sometimes move big weights which heavily depend on dimensions and design of the protectiv cover.
In rapid movement the translatory inertia creates unfavourable dynamic loading, comparable for example to a very quickly agitated curtain.
The uncontrollable movement has negative effects against the accuracy of machine tools. Likewise noise implementation and reduction of life time are concomitant phenomena in this case, and finally also a proper visual appearance is preferable. Previous solutions for equidistance dimensions of elements are pantographs (scissors). Disadvantage by using this method was the significant increase of weight which also increases above mentioned negative effects. In addition of that huge scissors have a lot of rotation axes. Every centre of rotation has a tolerance.
As a result of lots of axes unfavourable dynamic loadings are increased dramatically. Furthermore the principle of scissors causes higher assembly efforts and increases weak parts of design. To reduce all these negative influences dynamic loading has to be skipped in an autarkic system which has no influence in periphery of machine tool. Moreover to avoid additional costs they must not rely on an integrated drive.
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