the housing 1 fig2 shows in cross section a schematic clamping device 6 for carrying out the method according to the invention the housing 1 is illustrated in a longitudinal section the housing 1 passes through positioning rollers 7 8 upon insertion into the clamping device 6 the positioning rollers 7 8 are used to ensure a most accurate insertion of the housing 1 into the clamping device 6 slight rotations of several degrees however can nevertheless not be prevented because an unillustrated feed device may be unable to insert the housing with sufficient accuracy into the clamping device 6 in spite of the positioning rollers 7 8 the positioning rollers 7 8 are attached to a base plate 9 by way of springs the base plate 9 is in turn connected with a rotationally supported adjusting ring 10 the adjusting ring 10 exerts via a wedge plate 11 and rollers 12 13 a force on the clamping segments 4 5 causing the clamping segments 4 5 to transfer damping forces to the housing 1 the clamping segments 4 5 can hereby be moved by the adjusting ring 10 both inwardly and outwardly a stuffing funnel 14 is arranged directly in front of the clamping device 6 the front face of the housing 1 contacts a smallest diameter.