AUTOMATIC MACHINE FOR MANUFACTURE OF SPATIAL FORM PARTS, SUCH AS CLAMPS OF RAIL FASTENING, FROM BAR BY TWO SIDE BENDING Russian patent published in 2005 - IPC

FIELD: plastic metal working.

SUBSTANCE: proposed automatic machine contains bedframe, device for item-by-item delivery of blanks to bending zone, bending press tool-template, bending members in form of rollers freely rotating on their axles and forming, together with bending press tool-template, and impression, drives of working members blank pressing, bending and dropping of ready articles to removing conveyor. For manufacture of spatial form parts, such as clamps of rail fastenings, proposed bending press tool-template is made in form of movably mating movable and fixed mandrel-template is U-shaped, and it enclosed fixed mandrel-template, being mechanically coupled with its drive. Fixed mandrel-template is rigidly connected with bedframe of automatic machine. Bending slot-impression is made on both mandrels-templates in one common plane along their contour corresponding to inner contour of part to be formed with possibility of bending of end and arc sections of part contour connecting ends and sides when mandrels-templates are closed, and in open position, final bending of part to form full contour.

EFFECT: provision of high quality of parts at high capacity and long tool life.

10 cl, 9 dwg