초록 ▼

An apparatus for flow-forging and sheet-metal rubber-forming a shaped part from a work includes two members spaced from one another which define a pressure zone therebetween. First and second dies disposed between the members clamp the work therebetween, and a roller conveyor transports one die alon

An apparatus for flow-forging and sheet-metal rubber-forming a shaped part from a work includes two members spaced from one another which define a pressure zone therebetween. First and second dies disposed between the members clamp the work therebetween, and a roller conveyor transports one die along a transport direction. The dies are driven to and from the pressure zone, and one die includes a plurality of adjoining pressure-transferring elements. In a plurality of self-adjustable matching devices, each is interposed between the roller conveyor and a pressure-transfer surface of a corresponding pressure-transferring element. Each matching device automatically adjusts its position, as it passes through the converging pressure zone. A longitudinal member of each matching device has a substantially plane surface of a width exceeding at least a center-to-center spacing of two adjoining rollers of the roller conveyor. Substantially each longitudinal member is constrained to pivot about an axis substantially parallel to the plane surface. The pressure-transferring elements, which move in the transport direction, also move from one member towards another, while being transported through the pressure zone. As a gradually and smoothly increasing pressure is applied to the work by the members during the transport of the dies through the pressure zone, any recess flow-forged in the shaped part is smooth and free of any ridges.

대표청구항 ▼

An apparatus for flow-forging a shaped part from a work, comprising in combination two members spaced away from one another at a settable distance, and defining a pressure zone therebetween, holder means for maintaining the setting of said distance, first and second die means clamping said work ther

An apparatus for flow-forging a shaped part from a work, comprising in combination two members spaced away from one another at a settable distance, and defining a pressure zone therebetween, holder means for maintaining the setting of said distance, first and second die means clamping said work therebetween, first roller means in operative contact with one of said members for transporting at least one of said die means along a transport direction, and along a direction opposite thereto, said first roller means including a plurality of rollers, two adjoining rollers defining a center-to-center spacing, said members having an inclination to one another so as to cause said pressure zone to converge along said transport direction, drive means for driving said die means along said roller means to said pressure zone, and away therefrom, one of said die means including a plurality of adjoining pressure-transferring elements, each pressure-transferring element having a pressure-transfer surface on one end thereof facing said roller means, and a molding surface on the other end thereof determining at least partly the shape of said part, and a plurality of self-adjustable matching means, each being free from jarring with said roller means and being interposed between said roller means and the pressure-transfer surface of a corresponding of said pressure-transferring elements during the transport thereof in said pressure zone along said transport direction for smoothing and maximizing pressure transfer from said one of said members to said pressure transfer surface through said rolling means by each of said matching means automatically adjusting the position thereof as it passes through said converging pressure zone, wherein each self-adjustable matching means includes at least one longitudinal member having a substantially plane surface of a width exceeding at least the center-to-center spacing of two adjoining rollers of said first roller means, substantially each longitudinal member being constrained to pivot about a longitudinal axis substantially parallel to said plane surface with respect to a corresponding of said pressure-transferring elements, so that its plane surface is in operative contact with at least two adjoining rollers, and free from jarring herewith, said pressure-transferring elements, in addition to moving in said transport direction, also moving towards said other of said members while being transported through said pressure zone, whereby a gradually and smoothly increasing pressure is applied to said work by said members during the transport of said die means through said pressure zone, so that any recess flow-forged in said shaped part is substantially smooth and free of any ridges, a work loading and heating station upstream of said pressure zone for receiving and heating the work up to a predetermined temperature, said work loading station being arranged to receive said die means, and a die release station downstream of said pressure zone for separating said die means from one another, wherein said die release station includes die-separating means for separating one of said die means from the other of said die means following shaping of said work into said part, wherein said die separating means includes a pair of rails located above a plane operatively defining an upper surface of said other die means, and wherein said die separating means includes a pair of longitudinal wedges secured to said rails, the thin end of each wedge facing said work loading station, wherein each pressure-transferring element is formed with lateral projections on opposite minor sides thereof, respectively, at a level so that upper longitudinal surfaces of said wedges lift said pressure-transferring elements away from said other die means upon making contact with said lateral projections.