SolidWorks Motion - Moving a bellows.

Dear.

I'm trying to make the next design in SolidWorks 2013 can move but I can not how, it is a suspension bellows.

Please, one of you could tell me how to make the move to this model.

Awaiting your respeusta coridales.

Atte.

Andry Rodríguez Pérez

SolidworksSimulation