Process for manufacturing curved helical springs thus obtained springs and devices for putting into practice the procedure.

摘要

The invention comprises a method of manufacturing CURVED COIL SPRUNG FROM COIL SPRINGS SPUR, comprising in particular a bending step of the upright DOCKS FOR A PERIOD OF HEAT TREATMENT. THE PROCEDURE IS DEFINED BY THE FACT THAT, TO BEND THE DOCKS, they remain warped giving substantially the shape of a portion of ESPIRA PROP ORDER TO PROVIDE TO DOCK BEFORE MAKING A CONTRADEFECTO subsequent finishing operations. The invention relates ALSO WITH GOODS DOCKS IN ACCORDANCE WITH THIS PROCEDURE AND DEVICES FOR APPLYING thereof comprising locking means AT LEAST end turns DOCKS, SUSCEPTIBLE TO PERMIT A DIFFERENTIAL LOCK said turns, SHAPED, for example, a support (D SUB, 2}) having attachment means (5A, 5B, 6A, 6B, 10A, 10B, 11A, 11B) FOR TURNS eND OF PIERS (R SUB, 2}).