The present disclosure relates to a coupling device comprising a base element (14), in particular adapted to be connected to an apparatus, a receiving element (12) adapted to receive an object, and a coupling unit comprising first support means (30), first magnetic coupling means and first fixation means (38a, 38b) disposed on the base element and second support means (30), second magnetic coupling means and second fixation means (48a, 48b) disposed on the receiving element. The first and second support means define a plurality of, in particular three, discrete support segments of the base element and the receiving element in a coupled state. The first and second fixation means comprise clamping or tensioning means that are adapted to exert a force to releasably fix the receiving element to the base element. The first and second magnetic coupling means cooperate magnetically to create a force assisting the coupling between the receiving element and the base element.
