EP 0048776 A1 19820407 - Precision forging press.
Title (en)
Precision forging press.
Title (de)
Präzisions-Schmiedepresse.
Title (fr)
Presse à forger de précision.
Publication
Application
Priority
EP 80303412 A 19800929
Abstract (en)
The invention concerns precision forging presses comprising a plurality of punches (4, 5) adapted to be driven by respective drive means for forging a workpiece. An object of the invention is to provide a press in which high precision in dimensions as well as in quality of the forged product is assured. The invention is characterised by the press including means (17, 14, 20) by which the positions of the upper and lower punches can be continuously controlled as desired from the beginning of deformation of a workpiece (3) up to the termination of deformation. Said means enable positional information relating to the respective punches to be converted into voltages, the converted voltages to be compared with programmed reference voltages, and the movements of the respective punches to be continuously controlled in accordance with the comparison results.
IPC 1-7
IPC 8 full level
B21J 5/02 (2006.01); B21J 9/20 (2006.01); B30B 15/18 (2006.01)
CPC (source: EP)
B21J 5/02 (2013.01); B21J 9/20 (2013.01); B30B 15/18 (2013.01)
Citation (search report)
DE 2819167 A1 19781116 - SUPERVIS
Designated contracting state (EPC)
DE FR GB IT
DOCDB simple family (publication)
EP 0048776 A1 19820407; EP 0048776 B1 19831123; DE 3065700 D1 19831229
DOCDB simple family (application)
EP 80303412 A 19800929; DE 3065700 T 19800929