KR101112708B1

KR101112708B1 - A method of assembling stator and an apparatus for assembling same

Info

Publication number: KR101112708B1
Application number: KR1020100098717A
Authority: KR
Inventors: 다카유키 미우라
Original assignee: 닛또꾸 엔지니어링 가부시키가이샤
Priority date: 2010-01-07
Filing date: 2010-10-11
Publication date: 2012-02-22
Also published as: CN102122866A; JP2011142734A; CN102122866B; JP5562045B2; KR20110081028A

Abstract

(assignment)
The connecting end of the stator coil is shortened to reduce the coil end portion.
(Solution)
The assembling method of the stator is a method of arranging a plurality of divided core pieces 11 made up of a tooth 11a and a core back portion 1lb in a ring shape such that the core back portion forms a circle and the teeth are radially formed. And an annular arrangement step of arranging the core pieces in a transverse state in which the teeth are directed upwards or downwards, and a standing step of standing the plurality of divided core pieces arranged in the ring shape so that the teeth are radial. In the case where the plurality of split core pieces include the coil 16 continuous through the connecting line 16a, the connecting line 16a is disposed inside the plurality of split core pieces 11 arranged in an annular shape in the annular arrangement process. In the standing step, it is preferable that the plurality of divided core pieces 11 are stood up around the connecting line 16a. The assembling apparatus includes a plurality of core mounts 21 on which the split core pieces 11 can be mounted, and an operation mechanism 22 for standing them up.

Description

A method of assembling the stator and its assembly apparatus {A METHOD OF ASSEMBLING STATOR AND AN APPARATUS FOR ASSEMBLING SAME}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for assembling a stator comprising a plurality of divided core pieces composed of teeth and a core back portion in a ring shape, and an assembling apparatus thereof.

Background Art Conventionally, a stator, which is a rotary electric machine, includes a plurality of teeth (irritations) projecting radially side by side in an inner diameter direction and a plurality of slots opening therebetween. A cylindrical stator core having a slot is provided. Each tooth is provided with a winding wound around a wire rod, and a stator coil made of the wound wire rod is accommodated in each slot. As a method of manufacturing such a stator, the stator core is divided into pieces in the circumferential direction to form a plurality of split core pieces, and a bobbin for insulation is used on the teeth in the divided core pieces. A method of assembling a plurality of divided core pieces, each of which is provided with a coil and wound around a bobbin serving as the wound member, is used as a coil, and the coil is provided. In this way, by dividing the stator core into a plurality of split core pieces, it is possible to secure the trajectory required for the movement of the nozzle of the winding machine so that the coil can be wound, thereby improving the alignment of the coils, resulting in high coil occupancy. (coil 占率) (the share of the volume occupied by the coil, which is the same below) can be obtained.

In recent years, a plurality of split cores each having a coil group continuously wound around each tooth in a plurality of divided core pieces divided into U and V phase and W phase coils are divided. Later arrangement of pieces is done. In this way, in each split core piece, the coils are connected to each other by a connecting line from the beginning, thereby making it unnecessary to connect the coils in each split core piece. And the method of arrange | positioning without crossing the connection line connected to the terminal is proposed by changing the position of the connection line which rises from each of the some coil which forms the coil group of each phase by phase of a coil group (Example See, for example, Patent Document 1.).

In this method, since the connecting line does not cross, the coil end becomes small and the shaft length of the rotary electric machine can be shortened.

Patent Document 1: Japanese Patent No. 3732076 (Paragraph No. 0006, Fig. 1, Fig. 7 (c))

However, since the subsequent wiring is unnecessary by connecting the coils in the split core piece by the connecting line from the beginning, the plurality of split core pieces are connected via the connecting line, which makes it difficult to handle the assembly of the divided core pieces. there was.

In other words, the plurality of divided core pieces connected through the connecting line are arranged in a ring shape afterwards, but the operation of arranging the rings in the annular shape is performed by transferring the plurality of divided core pieces 2 to their teeth 2a. Arranged in a relatively large annular shape so as to form a radial shape, and then moving the plurality of divided core pieces 2 toward the center C of the circle they draw, so that both sides of each divided core piece 2 are finally adjacent to each other. The side surface of the split core piece 2 is in contact with each other. Then, as shown by the dashed-dotted line of FIG. 14, the length of the connection line 3 separates several division core piece 2 from the adjacent division core piece 2, and arranges it in a comparatively large annular shape. You need enough length to be able.

However, the plurality of divided core pieces 2 which are separated from each other are moved toward the center C as shown by the solid arrows, and both sides of each divided core piece 2 are adjacent to each other. When contacted to the side, the connecting line 3 becomes loose as shown by the solid line. The loosened connection line 3 pulls to the coil end 4a portion, which is an axial cross section of the stator 1, which is manufactured by arranging the plurality of split core pieces 2 in an annular shape. The excess redundant connecting line 3 protrudes from the coil end 4a outward in the axial direction of the stator 1, and the connecting line 3 is spaced apart from the coil end 4a so as to satisfy the axial length of the rotary electric machine. There was still problem to be solved that could not be shortened.

In addition, if the connecting line 3 approaches the coil end 4a and pulls further, the drawing must be done manually, and if the jig or the like used for drawing is in contact with the coil 4 during the pulling operation, The surface of the coil 4 may be damaged and the reliability thereof may be lowered. For this reason, the work requires careful attention, and there is a limit to increasing the efficiency of the pulling work. Therefore, if the connecting line 3 can be molded into a predetermined shape before the connecting line 3 approaches the coil 4, the attention force required for the subsequent pulling operation is reduced, and the efficiency of the pulling operation is improved. It can be expected to significantly increase the reliability.

An object of the present invention is to provide a stator assembling method and an assembling apparatus capable of shortening a connecting line at both ends of a stator and sufficiently minimizing a coil end portion including the connecting line.

The assembling method of the stator of the present invention is an improvement of a method of arranging a plurality of divided core pieces composed of a tooth and a core back in a ring shape such that the core back is a circle and the teeth are radial.

The feature points include an annular arrangement step in which a plurality of divided core pieces are placed in a transverse state in which the teeth face upward or downward, and an erected standing of the plurality of divided core pieces arranged in a ring shape so that the teeth are radial. It is to include process.

In the case where the plurality of split core pieces have a continuous coil through the connecting line, the connecting line is arranged inside the plurality of split core pieces arranged in an annular shape in the annular arrangement process, and the plurality of divided core pieces are arranged around the connecting line in the standing process. It is preferable to stand up the divided core pieces.

The assembling apparatus of the stator of this invention is an apparatus which arrange | positions the some split core piece which consists of a tooth and a core back part in a ring shape so that a core back part may make a circle, and a tooth may be radial.

The characteristic constitution includes a plurality of core mounts arranged in a ring shape in a transverse state so that the divided core pieces can be mounted in a transverse state in which the teeth face upward or downward, and a plurality of cores together with the mounted plurality of divided core pieces. It is equipped with the operation mechanism which makes a mount stand simultaneously and makes the teeth of several division core piece radial.

And it is preferable that an operation mechanism is provided with the several parallel link mechanism which is provided for every core mount, and can stand the core mount of a transverse state.

In the stator assembling method and the assembling apparatus of the present invention, since the plurality of divided core pieces are arranged in a ring shape in a transverse state, the distance from the adjacent divided core pieces within the plurality of divided core pieces arranged in a ring shape is determined. It can be shortened. For this reason, if a connection line is arrange | positioned inside the some division core piece arrange | positioned in a ring shape, and a plurality of division core pieces will stand up centering about this connection line, the required length of this connection line can be made shorter than before. By shortening the length of the connecting wire than before, the occupancy rate of the connecting wire arranged in the cable end of the stator manufactured (cable routing, wire routing) can be increased, and the coil end portion including the connecting wire can be sufficiently miniaturized. In addition, the overall length of the wire rod for producing the coil is reduced, the copper loss in the coil is reduced, and the efficiency of the rotary electric machine using the stator manufactured is improved, and the appearance of the rotary electric machine is also improved. It is also possible to miniaturize.

Fig. 1 is an enlarged view of the portion A of Fig. 8 showing the assembled state of the stator of the embodiment of the present invention.
Fig. 2 is a plan view showing a state where a plurality of divided core pieces in a transverse state are arranged in a ring shape.
FIG. 3 is a plan view corresponding to FIG. 2 showing a state where a plurality of divided core pieces forming an image are arranged in a ring shape. FIG.
4 is a view showing a plurality of divided core pieces forming an image of 1 connected through a connecting line.
Fig. 5 is a plan view showing a coil end on which a connection line of a stator, in which a core mount stands and where a plurality of divided core pieces are arranged in a ring shape, is arranged.
Fig. 6 is a plan view showing the assembling apparatus of the stator according to the embodiment of the present invention.
Fig. 7 is a front configuration diagram in which the core mount of the assembling device is in a horizontal state.
Fig. 8 is a front configuration diagram corresponding to Fig. 7 in which the core mount is in an upright state.
Fig. 9 is a front configuration diagram corresponding to Fig. 7 showing a state where the lifting plate is lowered.
FIG. 10 is a front configuration diagram corresponding to FIG. 7 showing a state in which a plurality of divided core pieces which are standing up to form an annular shape are pushed up; FIG.
11 is a perspective view showing a split core piece constituting a stator.
12 is a cross-sectional view in a plane perpendicular to the central axis of the stator.
FIG. 13 is a view corresponding to FIG. 1 showing a state where a split core piece is mounted on an inclined core mount. FIG.
Fig. 14 is a view showing assembly of a conventional stator.

EMBODIMENT OF THE INVENTION Next, the best form for implementing this invention is demonstrated based on drawing.

Fig. 12 shows a cross section of a split core stator 10 manufactured according to the present invention. The stator 10 is a stator core composed of a plurality of divided core pieces 11 divided in the circumferential direction for each of the teeth 11a, and is a wound member for the teeth 11a in the divided core pieces 11. The bobbin 13 for insulation is attached, and the bobbin 13 is equipped with the coil 16 which consists of windings. Specifically, the split core piece 11 is a magnetic body having an arc-shaped core bag portion 1lb and a tooth 11a protruding from the inner circumferential surface of the core bag portion 1lb toward the arc center of the inner circumferential surface thereof. The divided core piece 11 made of a material, and in this embodiment, has a substantially T-shaped core laminated plate having a core back portion 1 lb and a tooth 11 a of a predetermined thickness. ) Is a laminate type structured by laminating and fixing the layer to a predetermined thickness.

As shown in Fig. 11, the bobbin 13, which is a wound member, is made of an insulating resin, and the bobbin 13 has a tubular portion 13a into which a tooth 11a is inserted, and An outer circumferential side flange 13b integrally formed at the end of the core back portion 1lb side in the tubular portion 13a, and an inner circumferential side integrally formed at the end of the inner peripheral side of the stator 10 in the tubular portion 13a. The flange 13c is provided. On the outer circumferential side flange 13b of the bobbin 13, a pair of circular arc-shaped plate members which cover the end surface of the both sides of the stator 10 in the center axis direction of the stator 10 in the core back part 1lb of the split core piece 11 14, 14 are integrally formed, and the wire rod is wound around this bobbin 13, and the coil 16 (FIG. 12) is formed. In Fig. 12, a stator 10 of three-phase 12 slots is illustrated. In this stator 10, the split core pieces 11 are arranged at 90-degree pitches in one-phase coil group, and three-phase U coil group, The V coil group and the W coil group are arranged every 30 degrees, and the stator 10 is arranged by arranging these plurality of divided core pieces 11 in a ring shape so that the core back portion 1lb forms a circle and the teeth 11a are radial. ) Is manufactured.

The assembling apparatus 20 (FIGS. 6 and 7) of the stator of this invention can arrange | position the some split core piece 11 in ring shape. In particular, as shown in FIG. 4, the wire rod is continuously wound on the bobbin 13 in the plurality of split core pieces 11, and the coil 16 and the coil 16 are wound between the coils 16. It is suitable for assembling what consists of several continuous split core pieces 11 via the connecting line 16a electrically connected. Here, the wire rod in this example shows a case where the cross section in which the insulating film is formed on the surface is a circular line. Then, the assembly apparatus 20 of the present invention will be described as three axes, i, Y and Z, which are orthogonal to each other, are set, and the X-axis extends horizontally back and forth, the Y-axis horizontally and the Z-axis extends vertically. .

As shown in Figs. 6 and 7, the assembling apparatus 20 of the stator of the present invention rotates a plurality of core mounts 21 configured to mount the split core piece 11 and the core mounts 21. It is provided with the operation mechanism 22 which can be made into a lateral state or an upright state. The operation mechanism 22 includes a plurality of parallel link mechanisms 23 provided for each core mount 21, and the core mount 21 is attached to the base 24 via the link mechanism 23. The number of the parallel link mechanism 23 and the core mount 21 varies depending on the specification of the stator 10 to be manufactured, and is determined corresponding to the number of teeth 11a. In this embodiment of manufacturing the three-phase 12 slot stator 10 (Fig. 12), 12 core mounts 21 are provided corresponding to the number of divided core pieces 11, and 12 core mounts 21 are provided. Is radially installed through 12 parallel link mechanisms 23 (Fig. 6). The plurality of parallel link mechanisms 23 are provided in a ring shape on the base 24 at predetermined intervals in the circumferential direction, and since they are the same structure, the structure thereof will be described below by representing one of them.

As shown in Fig. 1, the parallel link mechanism 23 includes a pair of parallel transverse link members 23a and 23b and a pair of parallel longitudinal link members 23c and 23d, and the wells It is made by pivoting the intersections by combining them with a ruler. On the base 24, the horizontal top plate 24a is provided with a support plate 26 for supporting the link mechanism 23 radially upright when viewed from the top (FIGS. 6 and 7), and the outside of the support plate 26 thereof. The parallel link mechanism 23 is arrange | positioned at the edge, and the edge is pivotally supported by the support plate 26 inside the pair of parallel lateral link members 23a and 23b. This pivot support is made so that the imaginary line M which connects a pivot support point in the support plate 26 may become in parallel with the longitudinal link members 23c and 23d, and the imaginary line in the plurality of support plates 26 M) is formed inclined so as to approach each other toward the Z-axis direction upward. That is, the edge is formed inside the pair of parallel transverse link members 23a and 23b so that the imaginary line M inclined to the center line C of the circle drawn by the plurality of supporting plates 26 approaches upward. It is pivotally supported by the support plate 26. Since the pair of parallel transverse link members 23a and 23b is pivoted by the supporting plate 26, the pair of parallel transverse link members 23a and 23b have the first position shown in FIG. 7 which lowers the position toward the outside and the position toward the outside. It is comprised so that rotation is centered around a pivot support point in the support plate 26 between the 2nd positions shown in FIGS. 1 and 8-10 which are substantially orthogonal to a 1st position toward the upper direction.

As shown in Figs. 6 and 7, a first ring member 27 is provided on the base 24 to surround the plurality of support plates 26. Figs. On the other hand, inside the base 24, a second ring member 29 connected to the first ring member 27 and the plurality of connecting rods 28 and parallel to the first ring member 27 is provided. The connecting rod 28 penetrates the upper plate 24a of the base 24 so as to be movable, and a cylinder which is a driving source for elevating the second ring member 29 inside the base 24. 31) is installed. The cylinder 31 is fixed to the attachment plate 33 fixed to the upper plate 24a through the fixing column 32, and the second ring member together with the first ring member 27 by protruding the rod 31a. It is comprised so that the 2nd ring member 29 can be lowered with the 1st ring member 27 by raising (29) and putting out the rod 31a.

As shown in FIG. 1, one lower end is engaged with the first ring member 27 in the pair of parallel longitudinal link members 23c and 23d constituting the link mechanism 23. That is, the roller 34 is pivotally supported at the lower end of the parallel longitudinal link member 23c in the inner side, and the roller 34 is accommodated on the upper surface of the first ring member 27 and is movable horizontally. The guide member 36 which cannot move in the direction is attached radially as seen from the upper surface (Fig. 6). Thus, by coupling the lower end of the inner parallel longitudinal link member 23c to the first ring member 27, the parallel longitudinal link member 23c is also raised and lowered by raising and lowering the first ring member 27. The parallel lateral link members 23a and 23b are configured to be rotatable about a pivot support point on the support plate 26. As shown in FIG. 7, the pair of parallel transverse link members 23a, 23b are in the first position at the position where the first ring member 27 is lowered, and is shown in FIGS. 1, 8-10. As described above, the pair of parallel transverse link members 23a and 23b are configured to be in the second position at the position where the first ring member 27 is raised.

On the upper ends of the pair of parallel longitudinal link members 23c and 23d, the support 37 is pivotally supported in parallel with the parallel transverse link members 23a and 23b, and the core mount 21 is attached to the support 37. do. This support 37 constitutes the parallel link mechanism 23 together with one parallel transverse link member 23a, 23b, and this support 37 also has a first position with the parallel transverse link member 23a, 23b. And rotatable between the second position. The core mount 21 is attached to the support base 37 so as to form a transverse state parallel to the horizontal plane when the parallel transverse link members 23a and 23b are positioned at the first position. As shown in Fig. 6, the plurality of core mounts 21 are arranged in a ring shape at predetermined intervals in the circumferential direction in the transverse state, and are arranged radially when viewed from an upper surface. In this lateral state, the core mount 21 is comprised so that the split core piece 11 can be mounted in the lateral state in which the tooth 11a is upward (FIG. 7).

In this embodiment, the core mount 21 is made of permanent magnets, and in the split core piece 11 mounted in the transverse state, the core back portion 1lb (Fig. 5) is attracted to the upper surface thereof, and the split core piece It is comprised so that the 11 may be fixed to the core mount 21. FIG. Since the core mount 21 is attached to the support 37 which is rotatable between the first position and the second position, the core mount 21 also becomes rotatable with the support 37, and the first ring member When the 27 rises and the parallel transverse link members 23a and 23b are in the second position, the core mount 21 rotates to raise its outer side, and the mounted core piece 11 in the transverse state is mounted. It is configured to be able to stand. In this embodiment, since the parallel transverse link members 23a and 23b are rotatable approximately 90 degrees, when the core mount 21 stands up by rotating 90 degrees from the transverse state, the tooth 11a is in the transverse state facing upward. The split core piece 11 also stands up with the core mount 21 as shown by the broken line arrow in FIG. 1, and as shown in FIG. 5, the tooth 11a portion is configured to be radially inward. .

As shown in Fig. 7, the assembling apparatus 20 has a pressurizing mechanism 41 which separates the split core piece 11 by raising it from the core mount 21 on which the split core piece 11 stands up. ) And a tube fixing mechanism 51 for guiding and receiving the split core piece 11 pressurized by the pressing mechanism 41 to the support cylinder 38. The pressurizing mechanism 41 is attached to the tubular member 42 and the mounting plate 33 which extend in the vertical direction at the center surrounded by the radially supported support plate 26 and the tubular member. The servo motor 43 which is an elevator configured to raise and lower the 42 is provided. When the control output is connected to the servomotor 43 in a controller not shown in the figure, and the servomotor 43 is driven by a command from the controller, and the cylindrical member 42 is raised, as shown in FIG. Likewise, the cylindrical member 42 is configured to push up the split core piece 11 that stands up, and to separate the split core piece 11 from the core mount 21. And in the center of the cylindrical member 42, the recessed part 42a which can accommodate the lead wire 16b (FIG. 4) drawn out from the coil 16 in the split core piece 11 is formed.

On the other hand, the through-fixing mechanism 51 is a movable table 52 provided to be movable in the Y-axis direction from above the divided core piece 11 that has stood, and a lifting plate attached to the movable table 52 for lifting up and down ( 53). In the base 24, the strut 54 is installed in the upper plate 24a so as to surround the link mechanism 23 arranged in an annular shape from both sides in the X-axis direction, and the Y-axis is placed on the upper end of the strut 54. The rails 56 extending in the direction are respectively provided. The movable table 52 is hypothesized between the rail 56 and the rail 56, and the movable table 52 is a covering position covering the parallel link mechanism 23 arranged in an annular shape from above. As shown in FIG. 6, it is comprised so that a movement is possible between the opening positions which peel off from above the parallel link mechanism 23, and open the upper direction. An air cylinder 57 having the rod 57a vertical to the movable table 52 is provided with the rod 57a downward, and a lifting plate 53 is provided at the lower end of the rod 57a. Attached.

A vertical guide bar 58 penetrating through the movable table 52 is attached to the elevating plate 53. The control output is connected to the air cylinder 57 in the controller which is not shown in figure, and the rod 57a in the air cylinder 57 protrudes as shown in FIG. 9 and FIG. 10 by the command from a controller. As shown in FIGS. 7 and 8, the lifting plate 53 is lowered, and the lifting plate 53 is configured to rise when the rod 57a in the air cylinder 57 is immersed. An opening 52a is attached to the elevating plate 53 so that the supporting cylinder 38 is detachable, and the movable table 52 is fitted with the supporting cylinder 38 opposite to the supporting cylinder 38. ) Is formed. This support cylinder 38 is comprised so that insertion of the some split core piece 11 which stood up and arrange | positioned in ring shape is carried out in ring shape.

Next, the assembly method of the stator in this invention is demonstrated.

In the assembling method of the present invention, as shown in Fig. 12, the core back portion 1lb forms a circle and the teeth 11a form a plurality of divided core pieces 11 formed of a tooth 11a and a core back portion 1lb. As a method of arranging in a ring shape in a radial manner, as shown in FIG. 2, an annular arrangement step of placing a plurality of divided core pieces 11 in a transverse state in a ring shape, and the ring as shown in FIG. It can be divided into a standing step of standing up the plurality of divided core pieces 11 arranged in a shape. Next, each process is demonstrated.

In this step, a plurality of split core pieces 11 having coils 16 wound around the teeth 11a are prepared, and as shown in FIG. 2, the plurality of split core pieces 11 are formed by the teeth 11a. It is arranged in a ring shape with the transverse state facing upward or downward. Such a plurality of split core pieces 11 may include a coil 16 that is continuous through the connecting line 16a. In this embodiment illustrating the stator 10 having a three-phase 12-slot configuration, as shown in Fig. 4, a wire rod is continuously wound on four divided core pieces 11. In this way, the four split core pieces 11 become a continuous group through the connection line 16a which electrically connects the respective coils 16, and the four split core pieces 11 are continuous. The group consists of three sets of U, V and W phases. In this step, the plurality of divided core pieces 11 in a state connected by the connecting line 16a are arranged in a transverse state and arranged in a ring shape. Here, reference numeral 16b in FIG. 4 denotes a leader line 16b drawn out from the coils 16 at both ends of the group.

In the case of using the assembling apparatus 20 in the arrangement of the split core pieces 11, the movable table 52 is placed in the open position shown in FIG. 6 and arranged radially when viewed from the top as shown in FIG. Each divided core piece 11 is arranged in the transverse state on the core mount 21 in the transverse state. This lateral state is a state where the tooth 11a does not exist in the same plane with the axis 11 of the tooth 11a facing upwards or downwards, and the teeth 11a of the divided core pieces 11 are separated from each other. If the shaft cores do not exist on the same plane, the shaft cores are also inclined with respect to the vertical direction. In this embodiment, a case where the core back portion 1lb of the split core piece 11 is brought into contact with the core mount 21, and the teeth 11a are directed upward in the vertical direction is illustrated. 3 and 7, the divided core pieces 11 are arranged in the circumferential direction by arranging the divided core pieces 11 on the core mounts 21 arranged radially at predetermined intervals in the circumferential direction. It can be arranged in a ring shape at a predetermined interval.

In such an annular arrangement process, the connecting line 16a is arrange | positioned inside the some split core piece 11 arrange | positioned at the annular shape. In this embodiment, since the four divided core pieces 11 are continuous through the connecting line 16a in each phase, the divided core pieces 11 of one phase are arranged at a 90 degree pitch as shown in FIG. . At this time, the connection line 16a which connects these division core pieces 11 is arrange | positioned inside the some division core piece 11 arrange | positioned in annular shape, and the connection line 16a is shape | molded to a desired shape. When the plurality of split core pieces 11 are arranged in an annular shape, the connecting line 16a is spaced apart from the coil 16, even if the forming work of the connecting line 16a is performed using a jig or the like. There is no contact with this coil 16. In FIG. 3, the connection line 16a is shape | molded so that it may become circular arc shape along the split core piece 11 arrange | positioned in ring shape. Then, the arrangement of the divided core pieces 11 and the forming of the connecting line 16a are performed on each phase. As shown in FIG. 2, the divided core pieces 11 on the U, V, and W phases are formed every 30 degrees. It is arrange | positioned on the core mount 21, and these connection line 16a is shape | molded to a desired shape.

In this step, the plurality of divided core pieces 11 arranged in a ring shape are standing so that their teeth 11a are radially formed. In the case where the assembling apparatus 20 is used in the standing of the split core piece 11, as shown in Fig. 8, the rod 31a of the cylinder 31 provided inside the base 24 is protruded to be formed. The first ring member 27 is raised together with the two ring members 29, and the parallel transverse link members 23a and 23b at the first position are rotated to the second position. Thereby, the core mount 21 also rotates similarly to the parallel transverse link members 23a and 23b, and the core mount 21 is rotated 90 degrees from the transverse state to stand. In this way, the split core piece 11 in the transverse state in which the teeth 11a face upwards also stands up together with the core mount 21. As shown in FIG. 5, the plurality of split core pieces 11 are formed of the core back portion ( 1 lb) makes a circle and its teeth 11a are inwardly radial in the same plane.

Although the connection line 16a is arrange | positioned inside the some split core piece 11 arrange | positioned at the annular shape here, in this standing process, the several split core piece 11 stands up centering on the connection line 16a. Let's do it. As shown in Fig. 1, the core mount 21 in the assembling apparatus 20 is attached to the support 37 constituting the parallel link mechanism 23 together with the parallel transverse link members 23a and 23b. Therefore, the center of rotation is an imaginary line M connecting the parallel transverse link members 23a and 23b and the pivot support points of the support plate 26, and the pivot of the parallel longitudinal link members 23c and 23d and the support 37. It is at the intersection point P of the imaginary line N connecting the support points. As seen from the center C of the plurality of core mounts 21 arranged in an annular shape, the core mount 21 in the transverse state is provided with a plurality of core mounts by providing the core mount 21 outside the intersection point P. FIG. The intersection P in the inner side of the circle drawn by (21) stands as the center of rotation. For this reason, in the said assembling apparatus 20 in this invention, the connection line 16a in the inside of the split core piece 11 mounted in this core mount 21 is arrange | positioned in the vicinity of the intersection point P, The It is possible to make the plurality of split core pieces 11 stand up around the connecting line 16a. Then, the plurality of split core pieces 11 stand up around the connecting line 16a, whereby the connecting line 16a can be prevented from loosening when the split core piece 11 stands up.

When the plurality of split core pieces 11 are standing up, the circle drawn by the plurality of split core pieces 11 is made smaller, and the side surfaces thereof are standing up in the circumferential direction of the plurality of split core pieces 11 standing up, respectively. It is preferable to make contact with the adjacent split core piece 11, respectively. That is, as shown in Fig. 5, the core back portion 1lb in the split core piece 11 which stands up on both ends in the core back portion 1lb extending in the circumferential direction of the split core piece 11, respectively. It is preferable to make contact with both ends of respectively. This is because the plurality of split core pieces 11, which are standing up in a later step and are arranged in a ring shape, are fixed in a state in which they are in contact with each other, and in the assembling method of the present invention which becomes the previous step, the plurality of split core pieces This is because subsequent steps can be facilitated by keeping (11) in contact with each other.

In the assembling apparatus 20, the core mount 21 stands up at the intersection P inside the circle drawn by the plurality of core mounts 21 as the center of rotation. It becomes close to the central axis C, and the circle | round | yen which the some divided core piece 11 mounted in the core mount 21 draws can be made small. Therefore, when the assembling apparatus 20 of the present invention is used, the circle drawn by the plurality of divided core pieces 11 is made smaller, and the side surfaces thereof stand up in the circumferential direction of the plurality of divided core pieces 11 which stand, respectively, to be adjacent to each other. The split core pieces 11 can be brought into contact with each other.

Thus, in the assembling method of the stator of this invention and its assembly apparatus, the connection line 16a is arrange | positioned inside the several split core piece 11 arrange | positioned in annular form, and the plurality of connection lines 16a are centered around this connection line 16a. When the divided core pieces are stood up to come in contact with the adjacent divided core pieces 11, the connecting line 16a is not loosened and the molded shape is maintained at the time of arrangement. For this reason, in consideration of the loosening, the required length of the connecting line 16a can be shortened as compared with the conventional technique which requires a margin to the length of the connecting line. By shortening the length of the connecting line 16a than before, the occupancy rate of the connecting line 16a disposed in the coil end of the stator 10 manufactured can be increased, and the coil end portion including the connecting line 16a can be sufficiently miniaturized. can do. In addition, the overall length of the wire rod for manufacturing the coil 16 is also reduced, the copper loss in the coil 16 is reduced, and the efficiency of the rotary electric machine using the stator 10 to be manufactured is improved. It is also possible to miniaturize the appearance of the rotary electric machine.

Further, when a plurality of divided core pieces are stood up around the connecting line 16a, as shown in Fig. 5, the connecting line 16a does not come loose and maintains the shape formed at the time of arrangement, and thus the plurality of divided core pieces stand up. It is arrange | positioned along the coil end in the core piece 11. Therefore, by forming the connecting line 16a in a predetermined shape before the divided core piece 11 stands up, the complicated molding operation of the connecting line 16a after standing up the divided core piece 11 is unnecessary. The attention force required for the subsequent pulling operation is reduced as compared with the conventional case of forming the connecting line in the coil end portion. As a result, the efficiency of the pulling operation of the connecting line 16a can be improved more than before, and the reliability of the stator to be manufactured is sufficiently increased by reducing the stator cost and reducing the risk of damaging the coil 16. Can be.

Moreover, in the said assembling apparatus 20 of this invention, the several partition core piece 11 which stood up after that and was arranged in ring shape can be accommodated in the support cylinder 38, and can be supplied to the next process. The housing 38 is accommodated in the support cylinder 38 as shown in FIG. 9 with the covering position covering the plurality of divided core pieces 11 arranged in an annular shape by moving the movable stand 52 in the Y-axis direction. As described above, the lifting plate 53 is lowered by protruding the rod 57a in the air cylinder 57. Then, the servomotor 43 is driven to raise the tubular member 42, and as shown in FIG. 10, the standing split core piece 11 is pushed up, and the split core piece 11 is mounted on the core mount 21. As shown in FIG. And a plurality of divided core pieces 11, which are so erected in the support cylinder 38 provided thereon and are arranged in a ring shape, are inserted in a state where they are arranged in a ring shape. In this way, the plurality of divided core pieces 11 that stand up and are arranged in a ring shape can be held in that state and can be supplied to the next step.

Further, in the above embodiment, the split core piece 11 having an arcuate core back portion 1lb and a tooth 11a protruding from the inner circumferential surface of the core back portion 1lb toward the arc center of the inner circumferential surface. Although the case where the split core piece 11 of the transverse state in which the tooth 11a faces upward was mounted to the core mount 21 was illustrated, although it is not shown in figure, in the outer peripheral surface of the core back part which forms an arc shape, It is also possible to use a split core piece having a tooth protruding outward of the outer circumferential surface. In this case, the teeth are placed in the transverse state facing downward, and the split core piece in the transverse state is mounted on the core mount.

In addition, in the above-described embodiment, the case where twelve core mounts 21 are radially installed through twelve parallel link mechanisms 23 is illustrated, but the number of the parallel link mechanisms 23 and the core mounts 21 is Since it depends on the specification of the stator 10 to manufacture, it is not limited to this number, The number increases or decreases corresponding to the number of the teeth 11a.

In addition, in the above-described embodiment, the core mount 21 made of the permanent magnet is illustrated, but the core mount 21 can mount the split core piece 11 in the transverse state, and the split core can stand in the mounted state. It doesn't cost to make by a magnet. For example, a hook is provided to engage all or a part of the periphery of the split core piece 11, and when standing, the mounting state of the split core piece 11 mounted by the hook is maintained, and the split core piece It may be a core mount 21 to stand up with (11).

In addition, in the above-described embodiment, the case where the tooth 11a is mounted on the core mount 21 with the divided core piece 11 in a transverse state facing upward in the vertical direction is referred to as the transverse state. This means that the axis is not in the same plane, and the axis is inclined with respect to the vertical direction. Therefore, as shown in Fig. 13, the core mount is raised by raising the outer side of the core mount 21. You may mount the split core piece 11 of the transverse state which made it incline and inclined the axial center of the tooth 11a with respect to a perpendicular direction in the core mount 21 in that state. In this case, when the split core piece 11 is mounted on the core mount 21, the tubular member 42 has the lead wire 16b drawn out from the coil 16 in the split core piece 11. It becomes easy to insert into the recessed part 42a of the. For this reason, it is advantageous when the lead wire 16b includes the relatively long coil 16.

10 stator
11 division core edition
11a tease
1 lb core
16 coil
16a connector
20 Stator assembly unit
21 core mount
22 Controls
23 Parallel Link Mechanism

Claims

The core back portion 11b draws a plurality of divided core pieces 11 each including a tooth 11a and a core back portion 11b. In the assembling method of a stator, which is arranged in a ring shape so that (11a) forms a radial shape,
An annular arrangement step in which the plurality of divided core pieces 11 are arranged in an annular shape in a transverse state in which the teeth 11a face upwards or downwards. and,
A standing step of standing the plurality of divided core pieces 11 arranged in an annular shape so that the teeth 11a are radially formed.
Assembly method of the stator, characterized in that it comprises a.

The method of claim 1,
A plurality of split core pieces 11 are provided with a coil 16 that is continuous through a connecting line 16a, and the connecting wires are formed inside the plurality of split core pieces 11 arranged in a ring shape in an annular arrangement process. 16a), and the plurality of split core pieces (11) are stood up around the connecting line (16a) in a standing step.

Stator assembly apparatus for arranging a plurality of divided core pieces (11) consisting of a tooth (11a) and a core back portion (11b) in a ring shape so that the core back portion (11b) forms a circle and the teeth (11a) are radial. as,
A plurality of core mounts 21 arranged in a ring shape in a transverse state and configured to mount the split core piece 11 in a transverse state in which the teeth 11a face upward or downward;
An operating mechanism in which the plurality of core mounts 21 are erected simultaneously with the mounted plurality of divided core pieces 11 to radially set the teeth 11a of the plurality of divided core pieces 11. 22
Stator assembly apparatus characterized in that provided.

The method of claim 3,
And a plurality of parallel link mechanisms (23) are provided for each of the core mounts (21) so that the core mounts (21) can stand in the transverse state.