Global patent index - EP 0919310 B1

EP 0919310 B1 2001-03-14 - Swaging machine

Title (en)

Swaging machine

Title (de)

Rundknetmaschine

Title (fr)

Machine à rétreindre rotative

Publication

EP 0919310 B1 (DE)

Application

EP 97890225 A

Priority

EP 97890225 A

Abstract (en)

[origin: US6070446A] A swaging machine (1) for swaging rod-shaped workpieces (W) has a ring-shaped forging box (3) supported in a machine frame (2) so as to be driven and rotated about the travel axis (A) of the workpiece (W), where in radial recesses (4) of the forging box forging punches (5) are accommodated which act against each other and can be lifted via a lifting drive (7) while the forging box rotates at the same time. To ensure swaging with a non-rotating workpiece (W) subjected to a pure longitudinal feed, the forging punches (5) are supported in the recesses (4) of the forging box (3) via pivotally mounted longitudinal guideways (13), and oscillating movements with a direction of movement lying in a normal plane (N) with respect to the travel axis (A) can be superimposed on the lifting movements of the forging punches (5) for swinging back the associated forging tools (6) relative to the forging box (13) during their contact with the workpiece at an angular velocity corresponding to the angular velocity of the rotation of the forging box, but directed in the opposite direction.

IPC 1-7 (main, further and additional classification)

B21J 7/16; B21J 7/14

IPC 8 full level (invention and additional information)

B21J 7/14 (2006.01); B21J 7/16 (2006.01); B21J 9/18 (2006.01)

CPC (invention and additional information)

B21J 7/16 (2013.01); B21J 7/145 (2013.01)

Designated contracting state (EPC)

AT CH DE ES FR IT LI

EPO simple patent family

US 6070446 A 20000606; AT 199668 T 20010315; DE 59703151 D1 20010419; EP 0919310 A1 19990602; EP 0919310 B1 20010314; ES 2155985 T3 20010601; JP H11216533 A 19990810

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