EP 2374551 B1 20121128 - Method and device for producing coil springs by means of coiling machines
Title (en)
Method and device for producing coil springs by means of coiling machines
Title (de)
Verfahren und Vorrichtung zur Herstellung von Schraubenfedern durch Federwinden
Title (fr)
Procédé et dispositif de fabrication de ressorts cylindriques par enroulements de ressort
Publication
Application
Priority
DE 102010014385 A 20100406
Abstract (en)
[origin: EP2374551A1] The method involves defining a target geometry of a helical spring by a numerically controlled (NC) control program, and measuring an actual position of a structural element of the spring relative to a reference element at a measuring time point. The actual position is compared with a target position of the structural element at the time point for determining actual position difference that represents difference between the actual position and the target position at the time point. A position of a pitch tool (130) of a shaping device (120) is controlled based on the position difference. Independent claims are also included for the following: (1) a computer numerical controlled spring winding machine comprising a feeding device for supplying a wire to a shaping device (2) a computer program product for executing a method for manufacturing a helical spring.
IPC 8 full level
B21C 51/00 (2006.01); B21F 3/02 (2006.01); B21F 35/00 (2006.01)
CPC (source: EP US)
B21C 51/00 (2013.01 - EP US); B21F 3/02 (2013.01 - EP US); B21F 35/00 (2013.01 - EP US)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
EP 2374551 A1 20111012; EP 2374551 B1 20121128; BR PI1101836 A2 20120821; CN 102233399 A 20111109; CN 102233399 B 20140319; DE 102010014385 A1 20111006; DE 102010014385 B4 20111208; JP 2011218446 A 20111104; JP 5666954 B2 20150212; RU 2011112497 A 20121010; RU 2469811 C1 20121220; US 2011239718 A1 20111006; US 9566637 B2 20170214
DOCDB simple family (application)
EP 11001528 A 20110224; BR PI1101836 A 20110406; CN 201110085016 A 20110406; DE 102010014385 A 20100406; JP 2011058680 A 20110317; RU 2011112497 A 20110404; US 90079310 A 20101008