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US 9,283,614 B2Granted
Four-die forging device for forging presses
OwnerViktor Andriiovych Lazorkininventor
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OwnerViktor Andriiovych Lazorkininventor
Estimating the term…
Four-die forging device for forging presses can be employed to forge ingots and billets in a variety of steels and alloys on forging presses and is intended to provide for a longer repair-free service life of the device, a higher reliability, an increased forging process output and a better quality of forged parts. The holders (3, 4) of the side dies (5, 7) have a shape approximating to that of a truncated pyramid with the center of mass (47) of the “side die holder-side die” system located within the longitudinal section of the side die holder. The apart-guiding ways (9-12) are arranged either on the side surfaces of the die holders (1, 2), or on the inclined planes (22-29) of the holders (1-4) of the dies (5-8) in the longitudinal symmetry plane of the device, or on both of them. Internal planes of the apart-guiding ways are formed to enclose the planes of adjacent die holders thus creating a clutch-type connection. Provided in the bottom part of each side die holder are ledges (48, 49) where against the antifriction plates (30-37) thrust. Working surface of each die at its cross-sectional area consists of a central working zone (52) and two side zones (53, 54). Maximum width of the die working surface (bmax) and the antifriction plate sliding surface length (1) are in a ratio of bmax/l≦1.5. The device is characterized by a longer repair-free service life, higher reliability, increased forging process output and better quality of forged parts.
Four-die forging device for forging presses comprising top- and bottom die holders (1, 2) having inclined planes (26-29), operationally interconnected thereto side die holders (3, 4) having inclined planes (22-25) which correspond to respective inclined planes (26-29) of the top- and bottom die holders (1, 2) and being arranged so that they are movable relative to top- and bottom die holders (1, 2) while being interconnected thereto by means of apart-guiding ways (9-16), antifriction plates (30-37) arranged on the inclined planes (22-29) of the top-, bottom- and each side die holders (1-4) and four dies (5-8) with working surfaces, wherein the side die holders (3, 4) have a shape approximating to that of a truncated pyramid with a centre of mass of a “side die holder (3, 4) and side die (5-7)” system located within the limits of a side die holder (3, 4) longitudinal section, the apart-guiding ways (9-16) are pairwise arranged on side surfaces of at least one of the top die holder (1), and/or bottom die holder (2) and/or side die holder (3, 4), or on the inclined planes (22-29) of at least one of the one top die holder (1), and/or bottom die holder (2) and/or side die holder (3, 4) in a longitudinal symmetry plane of the device, or on side surfaces and on the inclined planes (22-29) of at least two of the top die holder (1), and/or bottom die holder (2) and/or at least one side die holder (3, 4) in the longitudinal symmetry plane of the device, internal planes of said apart-guiding ways (9-16) being formed to enclose planes implemented in adjacent top-, and/or bottom-, and/or at least one side die holders or longitudinal planes of elements rigidly secured on said die holders (1-4) thus creating a clutch-type connection, while in the bottom part of inclined plane (22-25) of each side die holder (3, 4) respective ledges (48, 49) are provided, whereagainst antifriction plates (30-37) thrust, a working surface of each die (5-8) at its cross-section consists of a central working zone (52) and two side zones (53, 54) with a maximum width of the die working surface (bmax) and antifriction plate sliding surface length (l) being in a ratio of bmax/l≦1.5.
Dependencies are inferred from the claim text.