EP 0275876 B1 19950405 - Method and apparatus for aligning a work piece.
Title (en)
Method and apparatus for aligning a work piece.
Title (de)
Verfahren und Vorrichtung zum Richten eines Werkstücks.
Title (fr)
Procédé et appareil de dressage d'une pièce.
Publication
Application
Priority
DE 3701223 A 19870117
Abstract (en)
[origin: US4860566A] The invention relates to a method and an apparatus for straightening a workpiece, especially a crankshaft, with a theoretical axis and at least one fillet running circularly about this axis, by exerting a pressure on at least one preselected section of the wall defining the fillet, with a tool that can be moved transversely of the axis and laid into the fillet. To reduce the great straightening forces to be applied in the use of known methods and apparatus, the straightening is performed according to the invention by cold-rolling the fillet walls and with the aid of a modified hard-rolling device, the control systems are provided with measuring means for determining the deviations from true running of the main journals of the crankshaft and actuators for the adjustment of the forces applied by the pressure rollers to the fillet walls according to the particular rotary angular position of the crankshaft to values intended for the straightening of the main journals.
IPC 1-7
IPC 8 full level
B21D 3/02 (2006.01); B21D 3/16 (2006.01); B24B 39/04 (2006.01)
CPC (source: EP KR US)
B21D 3/00 (2013.01 - KR); B21D 3/02 (2013.01 - EP US); B21D 3/16 (2013.01 - EP US)
Designated contracting state (EPC)
DE ES FR GB IT NL SE
DOCDB simple family (publication)
EP 0275876 A2 19880727; EP 0275876 A3 19900124; EP 0275876 B1 19950405; DE 3701223 A1 19880728; DE 3853485 D1 19950511; JP S63212015 A 19880905; KR 880008843 A 19880913; US 4860566 A 19890829
DOCDB simple family (application)
EP 88100107 A 19880107; DE 3701223 A 19870117; DE 3853485 T 19880107; JP 818988 A 19880118; KR 880000251 A 19880115; US 14142288 A 19880107