Patent ID: 6519993
Filing Date: 2003-02-18
Classification: H02K,Y10T

Abstract:
A machine for configuring a stator winding head, for a rotary electrical machine comprising a stator, the stator comprising an annular cylindrical body having a top transverse face and defining a set of open axial slots, the stator further comprising a plurality of generally U-shaped conductors of rectangular cross section, each having axial said branches with free end portions, with branches of at least two said conductors, superimposed radially, being received in each said open axial slot so that said free end portions extend substantially axially upwards on the side of the top transverse face of the body, said conductors, radially superimposed, constituting two layers of said conductors, said configuring machine comprising a support body for immobilizing the stator body and said conductors, and further comprising a plurality of substantially tubular concentric sleeves coaxial with said stator body, and a mounting means each of said sleeves for rotation about its axis with respect to the support body, each of said sleeves having an axial end portion defining a configuring part of the sleeve and oriented so as to lie facing said layer of conductors in said winding head placed in the configuring machine, each said configuring part defining gripping means for gripping said free end portions of the conductors of said layer, the configuring machine further including drive means coupled to said mounting means for rotating each of said sleeves in a first direction of rotation opposed to a second direction of rotation of an adjacent sleeve, whereby to bend said free end portions of the conductors of two adjacent said layers in opposite directions, wherein, in each said sleeve, the said gripping means comprise a set of gripping slots, each having a substantially right angled profile in circumferential and axial cross section, for receiving said free end portion of a conductor whereby rotation of the sleeve forms a single bend in each conductor in the associated said layer at an exit of the axial slot.