PUNCH FOR THE HIGH PRESSURE TUBES ENDS HEADING Russian patent published in 2018 - IPC B21J5/08 B21J13/02 

FIELD: engines and pumps.

SUBSTANCE: invention relates to engine building and can be used in the production of THE diesel internal combustion engines fuel systems high-pressure pipes. Punch for the high pressure tubes ends heading comprises the tube clamping device and the tube end shape forming device. Clamping device is made in the form of a split collet with external cone and slider bushing with an internal cone corresponding to the split collet external cone. Slider bushing has the ability of the internal cone movement and contact with the split collet external cone. Tube end shape forming device is made in the form of a split collet for the tube end shape rear part formation and the movable punch. Mounting the said split collet on the tube with a diametrical gap between them and with the tube clamping device thrust against the split collet end.

EFFECT: result is improvement of the obtained products quality.

1 cl, 1 dwg