Abstract: A stator manufacturing apparatus includes an insertion tool inserted into a stator core, the insertion tool having a plurality of holding grooves formed on an outer periphery, the insertion tool being configured such that a pair of side portions of a stator coil are disposed in two of the holding grooves separated by a predetermined width; and a pressing tool having a plurality of plate-like pushers narrowed toward tips arranged on a pressing body in correspondence with the positions of the plurality of holding grooves of the insertion tool. The pressing tool is configured to push the pairs of side portions of the stator coils inserted in the holding grooves radially outwardly and insert the side portions into the corresponding slots. A recessed groove enabling grippers to be inserted when the stator coil is disposed using the grippers for gripping the pair of side portions is formed on the outer periphery of the insertion tool.

Abstract: A winding device includes a nozzle holding mechanism for holding a plurality of nozzles in substantially parallel with each other, a nozzle rotation driving mechanism for rotating the nozzle holding mechanism about a rotation axis being substantially parallel with the plurality of nozzles, a spool supporting mechanism for supporting a plurality of spools in substantially parallel with each other, a spool rotation driving mechanism for rotating the spool supporting mechanism about a rotation axis being substantially parallel with the plurality of spools and being coaxially with or substantially parallel with the rotation axis of the nozzle holding mechanism, and a control unit for controlling the spool rotation driving mechanism in such a manner as to rotate the spool supporting mechanism in synchronism with rotation of the nozzle holding mechanism.

Abstract: A stator manufacturing apparatus includes an insertion tool inserted into a stator core, the insertion tool having a plurality of holding grooves formed on an outer periphery, the insertion tool being configured such that a pair of side portions of a stator coil are disposed in two of the holding grooves separated by a predetermined width; and a pressing tool having a plurality of plate-like pushers narrowed toward tips arranged on a pressing body in correspondence with the positions of the plurality of holding grooves of the insertion tool. The pressing tool is configured to push the pairs of side portions of the stator coils inserted in the holding grooves radially outwardly and insert the side portions into the corresponding slots. A recessed groove enabling grippers to be inserted when the stator coil is disposed using the grippers for gripping the pair of side portions is formed on the outer periphery of the insertion tool.

Abstract: A winding device includes a nozzle holding mechanism for holding a plurality of nozzles in substantially parallel with each other, a nozzle rotation driving mechanism for rotating the nozzle holding mechanism about a rotation axis being substantially parallel with the plurality of nozzles, a spool supporting mechanism for supporting a plurality of spools in substantially parallel with each other, a spool rotation driving mechanism for rotating the spool supporting mechanism about a rotation axis being substantially parallel with the plurality of spools and being coaxially with or substantially parallel with the rotation axis of the nozzle holding mechanism, and a control unit for controlling the spool rotation driving mechanism in such a manner as to rotate the spool supporting mechanism in synchronism with rotation of the nozzle holding mechanism.

Abstract: A winding device that winds a wire fed from a wire feeding member onto a stator having a plurality of radially disposed magnetic poles, includes a wire feeding member moving mechanism that moves the wire feeding member relative to the stator. The device also has a guide that holds the wire fed from the wire feeding member and positions the wire relative to a magnetic pole. The wire feeding member is moved relative to the stator without being passed between adjacent magnetic poles while the wire is held by the guide such that the wire fed from the wire feeding member is inserted between the adjacent magnetic poles.

Abstract: A winding device that winds a wire fed from a wire feeding member onto a stator having a plurality of radially disposed magnetic poles, includes a wire feeding member moving mechanism that moves the wire feeding member relative to the stator. The device also has a guide that holds the wire fed from the wire feeding member and positions the wire relative to a magnetic pole. The wire feeding member is moved relative to the stator without being passed between adjacent magnetic poles while the wire is held by the guide such that the wire fed from the wire feeding member is inserted between the adjacent magnetic poles.

Abstract: A winding method for winding a wire (2) fed from a nozzle (9) onto a stator (1) having a plurality of radially disposed teeth (4) includes a positioning step for positioning the wire (2) fed from the nozzle (9) relative to a tooth (4) while holding the wire (2) using a guide (7, 8) and a wire inserting step for moving the nozzle (9) relative to the stator (1) without passing the nozzle (9) between adjacent teeth (4A, 4B) while the wire (2) is held by the guide (7, 8) such that the wire (2) fed from the nozzle (9) is inserted between the adjacent teeth (4A, 4B).

Abstract: A winding device (1) for a multi polar armature, which simultaneously winds a plurality of wire rods (5) onto a core (7) on which a plurality of winding cores (9) are arranged circularly, includes an index mechanism (11) for rotating the core (7) about a central axis thereof, a nozzle (3) for reeling out the plurality of wire rods (5), and a nozzle moving mechanism (12) for moving the nozzle (3). Every time the nozzle (3) completes a single revolution around the winding core (9), a twist (6) occurring in the wire rods (5) is undone by having the index mechanism (11) cause the core (7) to perform a single revolution about a central axis (T) thereof and having the nozzle moving mechanism (12) cause the nozzle (3) to follow the winding core (9) as the core (7) performs the single revolution.

Abstract: A winding method for winding a wire (2) fed from a nozzle (9) onto a stator (1) having a plurality of radially disposed teeth (4) includes a positioning step for positioning the wire (2) fed from the nozzle (9) relative to a tooth (4) while holding the wire (2) using a guide (7, 8) and a wire inserting step for moving the nozzle (9) relative to the stator (1) without passing the nozzle (9) between adjacent teeth (4A, 4B) while the wire (2) is held by the guide (7, 8) such that the wire (2) fed from the nozzle (9) is inserted between the adjacent teeth (4A, 4B).

Abstract: A winding device (1) for a multi polar armature, which simultaneously winds a plurality of wire rods (5) onto a core (7) on which a plurality of winding cores (9) are arranged circularly, includes an index mechanism (11) for rotating the core (7) about a central axis thereof, a nozzle (3) for reeling out the plurality of wire rods (5), and a nozzle moving mechanism (12) for moving the nozzle (3). Every time the nozzle (3) completes a single revolution around the winding core (9), a twist (6) occurring in the wire rods (5) is undone by having the index mechanism (11) cause the core (7) to perform a single revolution about a central axis (T) thereof and having the nozzle moving mechanism (12) cause the nozzle (3) to follow the winding core (9) as the core (7) performs the single revolution.

Abstract: In a winding apparatus (1) of a stator (multi polar armature) winding a bundle of plural wire rods (5) on a circular core in which teeth (winding core) (9) are arranged circularly, an index mechanism (11) rotating the circular core (8) around its central axis, a core turning mechanism (30) turning the index mechanism (11), a nozzle (3) reeling out a plurality of wire rods (5), and a nozzle travel mechanism (15) traveling the nozzle in the three dimensional directions are provided. The index mechanism (11) and the nozzle travel mechanism (15) travel the nozzle (3) around each tooth (9) to wind the wire rods around each tooth (9), as well as the core turning mechanism (30) turns the index mechanism (11) and also the circular core (8) to eliminate the twist produced in the wire rods (5) wound around tooth (9).

Abstract: In a winding apparatus (1) of a stator (multi polar armature) winding a bundle of plural wire rods (5) on a circular core in which teeth (winding core) (9) are arranged circularly, an index mechanism (11) rotating the circular core (8) around its central axis, a core turning mechanism (30) turning the index mechanism (11), a nozzle (3) reeling out a plurality of wire rods (5), and a nozzle travel mechanism (15) traveling the nozzle in the three dimensional directions are provided. The index mechanism (11) and the nozzle travel mechanism (15) travel the nozzle (3) around each tooth (9) to wind the wire rods around each tooth (9), as well as the core turning mechanism (30) turns the index mechanism (11) and also the circular core (8) to eliminate the twist produced in the wire rods (5) wound around tooth (9).

Abstract: In a winding apparatus (1) of a stator (multi polar armature) winding a bundle of plural wire rods (5) on a circular core in which teeth (winding core) (9) are arranged circularly, an index mechanism (11) rotating the circular core (8) around its central axis, a core turning mechanism (30) turning the index mechanism (11), a nozzle (3) reeling out a plurality of wire rods (5), and a nozzle travel mechanism (15) traveling the nozzle in the three dimensional directions are provided. The index mechanism (11) and the nozzle travel mechanism (15) travel the nozzle (3) around each tooth (9) to wind the wire rods around each tooth (9), as well as the core turning mechanism (30) turns the index mechanism (11) and also the circular core (8) to eliminate the twist produced in the wire rods (5) wound around tooth (9).

Abstract: In a winding apparatus (1) of a stator (multi polar armature) winding a bundle of plural wire rods (5) on a circular core in which teeth (winding core) (9) are arranged circularly, an index mechanism (11) rotating the circular core (8) around its central axis, a core turning mechanism (30) turning the index mechanism (11), a nozzle (3) reeling out a plurality of wire rods (5), and a nozzle travel mechanism (15) traveling the nozzle in the three dimensional directions are provided. The index mechanism (11) and the nozzle travel mechanism (15) travel the nozzle (3) around each tooth (9) to wind the wire rods around each tooth (9), as well as the core turning mechanism (30) turns the index mechanism (11) and also the circular core (8) to eliminate the twist produced in the wire rods (5) wound around tooth (9).

Abstract: A stator and a stator manufacturing method is provided in which a space factor can be improved, while reducing the number of components and simplifying the manufacturing process. A stator comprises a plurality of teeth cores 11 positioned at predetermined intervals on a predetermined circumference, a core back core 12 provided on a circumferential outside between adjacent teeth cores, and stator windings 13 which are wound around the teeth cores. An approximately U-shaped insulating sheet 14 is provided between adjacent teeth cores 11 with the ends of the sheet facing towards the circumferential outside, the insulating sheet 14 is provided between the teeth cores 11 and the stator windings 13, and the ends of the insulating sheet 14 are bent inward and occluded by an inner end surface of the core back core 12 which is inserted from the circumferential outside.

Abstract: A stator and a stator manufacturing method is provided in which a space factor can be improved, while reducing the number of components and simplifying the manufacturing process. A stator comprises a plurality of teeth cores 11 positioned at predetermined intervals on a predetermined circumference, a core back core 12 provided on a circumferential outside between adjacent teeth cores, and stator windings 13 which are wound around the teeth cores. An approximately U-shaped insulating sheet 14 is provided between adjacent teeth cores 11 with the ends of the sheet facing towards the circumferential outside, the insulating sheet 14 is provided between the teeth cores 11 and the stator windings 13, and the ends of the insulating sheet 14 are bent inward and occluded by an inner end surface of the core back core 12 which is inserted from the circumferential outside.

Abstract: A winding apparatus, which delivers a line material from a nozzle and winds said line material, providing a notch portion on the tip portion of said nozzle, which eases the amount of bending of said line material.

Abstract: A winding machine is provided, by which it is possible to cope with various kinds of shapes of the winding section, to realize stable winding, and to perform an operation of connecting the end of the wound wire to a terminal and a winding operation in a single process. The winding machine comprises a nozzle which is movable while letting out a wire; driving device for driving the nozzle; direction switching device for making the direction of the nozzle switchable; and winding position setting device for setting the position of a winding section onto which the wire is wound, and wherein the wire is wound onto the winding section according to movement of the nozzle, and the wire is fixed to a wire fixing section at the end of winding.