Device for gripping and transferring a ring of electrical conductors which is used to produce a winding and a winding-productuion system employing one such device

Device for gripping and transferring a ring of electrical conductors in the form of pins used to produce a pin winding, such as a winding for the stator of a rotating electrical machine;

• the gripping device is adapted to seize the ring in a first device for forming the ring, and to transfer the ring to a second device, such as by inserting the ring in the support element of the winding to be produced, of the type that includes a frame (13) and a number of levers for gripping (15) the ring, which are mounted to pivot on the frame between a position for gripping the ring and a release position away from the ring, and common control elements for pivoting the levers (15) of the type in which the levers (15) are levers with two arms (16, 17), one of which (16) is the control arm, while the other arm (17) has at the end elements for gripping (42, 43) the ring;
• the levers (15) are mounted and pivot in the frame (13) through their intermediate section (18) located between the two arms (16, 17), characterized in that the control elements to pivot the levers (15) include an element (19) in the form of a cone coaxial to the frame and have an outside peripheral surface (40) inclined in relation to the axis (X-X) of the frame, which can be moved axially in the frame (13) under the effect of a control device (21) that moves the cone (19), and characterized in that the ends (38) of the control arms (16) of the levers (15) are maintained in support on the inclined surface (40) so that the axial movement of the cone causes the levers to pivot.