An assembly for forming windings for electric machines, comprising: a supporting frame, a collection drum which has a central axis of symmetry and is supported on a plane of arrangement of the frame wherein the drum has a plurality of seats arranged according to a predefined distribution; at least one grip element which is configured to pick up at least one electrically conductive element from a delivery station and to move the picked-up element up to the insertion at least of a portion of interest of the element in a seat of the drum.

The assembly comprises means for translation which are configured to translate the drum on the plane of arrangement so as to vary the position of the central axis of the drum on the plane of arrangement.

An assembly for forming windings for electric machines, comprising: a supporting frame, a collection drum which has a central axis of symmetry and is supported on a plane of arrangement of the frame wherein the drum has a plurality of seats arranged according to a predefined distribution; at least one grip element which is configured to pick up at least one electrically conductive element from a delivery station and to move the picked-up element up to the insertion at least of a portion of interest of the element in a seat of the drum.

The assembly comprises means for translation which are configured to translate the drum on the plane of arrangement so as to vary the position of the central axis of the drum on the plane of arrangement.

With this manufacturing method, a stator provided with a plurality of segment coils, both leg portions of which are inserted into each slot of a stator core and which are overlapped in the radial direction of the stator core into a plurality of layers and aligned in an annular shape, is manufactured. In this manufacturing method, a tool having teeth is moved by a robot manipulator and thereby the teeth are inserted between the terminals of the leg portions of the respective layers. When inserted, the tool is tilted in the insertion direction of the teeth and around the axis orthogonal to the radial direction and thereby the ends of the teeth are made non-contact with the insulating coatings of the terminals of the leg portions.

With this manufacturing method, a stator provided with a plurality of segment coils, both leg portions of which are inserted into each slot of a stator core and which are overlapped in the radial direction of the stator core into a plurality of layers and aligned in an annular shape, is manufactured. In this manufacturing method, a tool having teeth is moved by a robot manipulator and thereby the teeth are inserted between the terminals of the leg portions of the respective layers. When inserted, the tool is tilted in the insertion direction of the teeth and around the axis orthogonal to the radial direction and thereby the ends of the teeth are made non-contact with the insulating coatings of the terminals of the leg portions.

An electric machine comprising a rotor and a stator, wherein at least one of the rotor and/or stator comprises a toroidal winding comprising a plurality of preformed conductors.

An electric machine comprising a rotor and a stator, wherein at least one of the rotor and/or stator comprises a toroidal winding comprising a plurality of preformed conductors.

A method for manufacturing a stator includes an insertion step of inserting a plurality of segment coils into slots of a stator core, and a bending step of repeating, after the insertion step, a process in which a bending member that presses and bends a portion to be a coil end along the circumferential direction is relatively moved in a circumferential direction with respect to the stator core and relatively moved in an axial direction to bend the portion to be a coil end, and then bending is shifted to bending of the next portion to be a coil end adjacent to the bent portion to be a coil end by the bending member.

An aligning apparatus for a hairpin type stator coil includes a frame, at least one storage including storage guides, which are arranged in a storage stacking portion installed in the frame and are inclined downward, and on which I-shaped stator coils are loaded, at least one cartridge including cartridge guides arranged in a downward direction and loading the I-shaped stator coils which are taken out from the at least one storage, and the at least one cartridge arranged in front of at least one storage to extract the I-shaped stator coils, and a robot gripper configured to move along a predetermined path by a handling robot to grip and un-grip the I-shaped stator coils, which are output one by one from the at least one cartridge, and insert the I-shaped stator coils into a predetermined position in the alignment jig.

An aligning apparatus for a hairpin type stator coil includes a frame, at least one storage including storage guides, which are arranged in a storage stacking portion installed in the frame and are inclined downward, and on which I-shaped stator coils are loaded, at least one cartridge including cartridge guides arranged in a downward direction and loading the I-shaped stator coils which are taken out from the at least one storage, and the at least one cartridge arranged in front of at least one storage to extract the I-shaped stator coils, and a robot gripper configured to move along a predetermined path by a handling robot to grip and un-grip the I-shaped stator coils, which are output one by one from the at least one cartridge, and insert the I-shaped stator coils into a predetermined position in the alignment jig.

A coil feeding apparatus is configured to feed a material coil in a predetermined direction to manufacture a hairpin of a motor. The coil feeding apparatus includes a base plate provided on an upper surface thereof with a base rail and a guide rail connected to each other to form a straight path, a feeding module provided so as to reciprocate along the base rail and provided with a plurality of feeding grippers configured to grip the material coil, a fixed module disposed downstream of the feeding module on a feeding path of the material coil while being spaced a predetermined distance from the feeding module and provided with a fixed gripper configured to grip the material coil, and a guide module disposed between the feeding module and the fixed module to guide the material coil so that the material coil is fed straight.