The thesis deals with the problem of fixing the flexible prism element to the supporting element which is the side contact pen. The resulting component will serve for the manufacture of wall-mounted switches or work panels. The aim of this work is the main design of the mechanical construction of the device which will be able to fix the elastic element on the complicated positioning of the tongue to meet the conditions of the technological tests. The work should also specify the sequence of actions, respectively control program in block form. The machine should be designed so that it can be supplemented in the future with ancillary technological equipment that will enhance the functions and capabilities of the whole unit.