An example of a positioning apparatus has a base member configured to support a stator core, a positioning tool disposed on its upper surface, and a driving mechanism for driving it. The positioning tool has a first plate and a second plate. The first plate has an inner side ring and an annular plate body fixed to the upper surface thereof, and the second plate has an outer side ring and a plate body fixed to the upper surface thereof. Insertion holes each configured to accept insertion of one of distal end pairs are formed on the plate bodies, respectively, and positioning is performed by rotating these plate bodies in opposite directions. Positions of the distal end pairs are aligned in the radial direction without the positioning tool, and then the positioning tool is set.

To automate a sub-process during the production of a component, which is to be equipped with coils, of an electric machine, a wire end shaping device is used, which is equipped with coils, of an electric machine, for shaping wire ends which protrude from an annular housing of the component, comprising a bending device for bending wire ends in a circumferential direction, a relative movement device for moving the housing and the bending device in a relative manner in an axial direction, and a controller. The receiving and rotating units, which receive the wire ends, of the bending device are held to be axially static relative to one another, wherein differences in length compensation and/or in a turning angle of the wire ends are handled by means of different movement profiles of the rotational movements of the receiving and rotating units.

The invention relates to a method and a device for the automated manufacturing of a semi-finished product of a stator (1) of an electrical machine. A substantially hollow-cylindrical laminated core (2) with a plurality of stacked sheet metal segments (2) defining a main axis (6) is provided. Rod-shaped conductor elements (3, 4) for the construction of an electrical winding protrude with at least one of their longitudinal ends (11, 12; 13, 14) with respect to the first and/or second end face (7, 8) of the laminated core (2), so that they form conductor protrusions (15, 16; 17, 18) with respect to the laminated core (2) at at least one of the end faces (7, 8) of the laminated core (2). These conductor protrusions (15, 16; 17, 18) of the conductor elements (3, 4) are bent in the direction of the circumferential direction of the hollow-cylindrical laminated core (2) by means of at least one bending tool (25, 25; 26, 26) mounted rotatably about an axis of rotation (27). In addition, the longitudinal ends (11, 12; 13, 14) of the conductor elements (3, 4) are brought into a predefined target radial position relative to the laminated core (2) by calibrating forces acting radially in the direction towards the axis of rotation (27) and exerted by at least one calibration device (28, 29) with controllably adjustable calibrating fingers (30, 31) aligned radially with respect to the axis of rotation (27) of the at least one bending tool (25, 25, 26, 26).

The invention relates to a method for automatedly manufacturing a stator component, as well as a device for manufacturing a stator component comprising at least one hollow-cylindrical stator pack having a plurality of rod-shaped electrical conductor elements inserted into the stator pack, said conductor elements projecting substantially to the same distance out of the stator pack at the base side as conductor ends while at the front side the conductor ends project out of the stator pack according to their respectively prescribed length, and wherein the stator pack has at least one positioning mark, which is placed in the outer lateral surface of the stator pack and extends in the direction of the main axis of the stator pack and which serves for orienting and positioning the stator pack with respect to at least one forming tool.

The invention relates to a method for producing a semi-finished product of a stator (1), wherein the method comprises the following method steps: providing a laminated core (2), wherein the laminated core (2) has a plurality of receiving grooves (5) distributed in a circumferential direction; providing a plurality of conductor elements (3, 4); inserting the conductor elements (3, 4) into at least some of the receiving grooves (5), wherein the conductor elements (3, 4) are inserted into the receiving grooves (5) in such a way that conductor element overhangs (11, 12) of the conductor elements (3, 4) protrude beyond at least one of the axial end faces (7, 8) of the laminated core (2) in the axial direction; bending the conductor element overhangs (11, 12) in the radial direction (22); bending the conductor element overhangs (11, 12) of the conductor elements (3, 4) in the circumferential direction (16, 17).

The present invention pertains to a stator manufacturing method and a device therefor. All of segments are twisted in order to obtain a stator, the linear sections of the segments being inserted into slots in a stator core. The segments on the inner peripheral side are subsequently twisted after the segments on the outer peripheral side are untwisted. In order to achieve this, e.g., a fourth spindle that is positioned on the outermost peripheral side and is one of the first through fourth spindles for twisting the segments is disconnected from a fourth motor and brought to a non-rotatable state. The following is then performed in sequence: the third spindle is disconnected from a third motor and twisted, and the second spindle is disconnected from the second motor and twisted.

A control device moves a split claw (11) holding a projecting portion (4d) of an eighth-layer coil segment (4) in a counterclockwise direction D1. At this time, the control device moves first to third extended blades (13a) to (13c) in an outward direction D3 so that the projecting portion (4d) of the eighth-layer coil segment (4) is bent in the outward direction D3. Then, the control device moves the first to third extended blades (13a) to (13c) in an inward direction D4. Through the above steps, the projecting portion (4d) of the eighth-layer coil segment (4) is bent in the counterclockwise direction D1 while being bent in the outward direction D3. As a result, a return force tending to return in the inward direction D4 is generated by an elastic deformation force.

A method of engaging wire ends of a stator assembly. The method involves advancing multiple fingers radially inwardly toward the wire ends, and rotating the fingers. The fingers have protrusions that engage the wire ends. A tooling assembly for engaging the wire ends has a first plate, a second plate, and has the fingers. The first plate has slots, and the second plate has teeth. The fingers have pins that ride in the slots of the first plate, and the fingers have teeth that mesh with the teeth of the second plate.

The invention relates to a method as well as a device for positioned holding of at least one layer (9, 10) of several conductor elements (3, 4) arranged distributed over the circumference of a laminated core (2) and formed as bars in relative position with respect to the laminated core (2) accommodating the conductor elements (3, 4) in each case in a receiving groove (5) extending between a first front face (7) and a second front face (8). For this purpose, all conductor elements (3, 4) of the at least one layer (9, 10) are each acted upon at their end portions (11, 12; 13, 14) protruding beyond the laminated core (2) by at least one pressure element (21, 22), which is adjustable in the radial direction, of a pressure device (20). The laminated core (2) is held in position by a holding device (17).

The invention relates to a method as well as a device (16) for the positioned holding of a laminated core (2) including at least one layer (9, 10) accommodated in the laminated core (2), which layer is made up of several conductor elements (3, 4) arranged spread over the circumference of the laminated core (2) and configured as rods for forming a stator or a rotor of an electric machine. The first front face (7) of the laminated core (2) comes into flush contact with first stop faces (21) of first support elements (20) and the first support elements (20) are readjusted into open spaces between the conductor elements (3, 4). The second stop faces (23) of second support elements (22) then come into flush contact with a second front face (8) of the laminated core (2) and the second support elements (22) are also readjusted into the open spaces between the conductor elements (3, 4). This allows for the laminated core (2) to be held in a positioned manner.