JP2001157424A - Winder of stator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To carry out the winding treatment of a stator quickly and easily, with simple constitution. SOLUTION: This winder is equipped with a plurality of holding mechanisms 30 which hold stator cores 14 and on which the feet 22 of the stator cores 14 can be arranged vertically upward, an index table 32 on which the holding mechanisms 30 are mounted shiftably, a winding mechanism 34 which applies winding treatment to the stator cores 14 and a commutator member 18, a driving mechanism 36 which rotates the stator cores 14 after termination of winding from vertical posture to horizontal posture and also engages the fellow stator cores 14 with one another, and a shifting mechanism 40 which holds the commutator member 18 and shifts that commutator member 18 downward, interlocking with the driving mechanism 36.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a stator winding device for assembling a plurality of stator cores divided for each tooth in an annular shape and applying a winding process to the stator core to form a stator.

[0002]

2. Description of the Related Art Generally, motors and generators employ a structure in which a rotor is disposed inside a stator core assembled in an annular shape. This type of stator core is configured such that a plurality of radially-directed convex portions are formed on the inner peripheral surface of a substantially cylindrical body, and a conductive wire is wound around grooves of the convex portions. For this reason, there was a problem that the operation of winding the conductor was extremely complicated.

Therefore, for example, Japanese Patent Application Laid-Open No. 9-191588
A rotary electric machine and a method for manufacturing the same are disclosed in Japanese Patent Application Laid-Open Publication No. H11-163873. In this prior art, as shown in FIG. 12, three stator pieces 1a, 1b and 1c are configured as one unit core 2, and one stator is configured by combining the three unit cores 2. Have been. The stator pieces 1a to 1c are formed at an angle to each other so as not to interfere with the respective winding operations.

In a state where the stator pieces 1a to 1c are held by an iron core holding jig (not shown), a winding process is performed through a flyer (not shown), and as shown in FIG. The coils 3a to 3c are wound around 1a to 1c. Further, the stator pieces 1a to 1c are bent inward along a jig (not shown) to form the unit core 2, and the stator is manufactured by combining the three unit cores 2. (See FIG. 14).

[0005]

However, in the above-mentioned prior art, the stator pieces 1a to 1c are wound through a core holding jig and a flyer, and then the stator pieces 1a to 1c are cured. The process of folding along the tool, for example,
It is necessary to perform the operations for the three unit cores 2 and to assemble them integrally. As a result, it has been pointed out that a plurality of jigs are required, and the whole stator manufacturing operation becomes considerably complicated and time-consuming.

In addition, when the winding operation of the motor having the commutator is performed by the above-mentioned conventional technique, the stator pieces 1a to 1a are required.
The coils 3a to 3c wound around c are respectively engaged with the hooks of the commutator. For this reason, when the stator pieces 1a to 1c are bent inward to form the unit core 2, looseness occurs between the commutator and the coils 3a to 3c, and winding defects of the coils 3a to 3c occur. Resulting in. This allows
It has been pointed out that the winding work of the motor with a commutator becomes extremely complicated.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and has as its object to provide a stator winding device capable of easily and efficiently performing a stator winding operation with a simple configuration. I do.

[0008]

In the stator winding device according to the present invention, a stator core divided for each tooth is held by each holding mechanism which is annularly mounted on the base. The rotor-side end of the stator core is arranged in a vertical direction. In this state, after the coil is wound on the stator core via the winding mechanism and the coil is locked on the hook portion of the commutator member, the stator core is rotated from the vertical position to the horizontal position and held. The mechanism moves toward the center of the ring, and the stator cores are engaged with each other.

Accordingly, the rotor-side end portion can be arranged vertically in a state where the stator core is mounted on the holding mechanism, and the winding work on the stator core can be easily and smoothly performed. Moreover, by simply rotating the stator core after the winding process from the vertical position to the horizontal position, and further moving the holding mechanism toward the center of the ring, the stator cores are engaged with each other and arranged in a ring shape. .

At this time, a moving mechanism for holding the commutator member moves the commutator member in the axial direction and / or the circumferential direction of the ring in conjunction with the driving mechanism. Therefore, when the stator core is turned from the vertical posture to the horizontal posture, and when the stator core moves toward the center of the ring, loosening may occur in the coil locked to the commutator member. Therefore, it is possible to reliably apply a desired tension to the coil.

As a result, the entire winding work of the stator can be efficiently and quickly performed with a simple configuration. Moreover, by simplifying the configuration, it is possible to reduce the number of parts and to effectively reduce the manufacturing cost.

Further, the holding mechanism includes a movable base arranged to be swingable with respect to the base, and a swing support member provided on the movable base so as to be vertically swingable holds the stator core. are doing. Therefore, with a very simple configuration, the posture of the stator core can be easily changed between the vertical posture and the horizontal posture, and the efficiency of the entire winding operation can be easily achieved.

Further, the moving mechanism includes a rotating shaft intermittently rotating integrally with the base, the commutator member is held on the rotating shaft, and the rotating shaft is driven by the lifting mechanism under the action of the elevating means. It is raised and lowered in synchronization with the operation. Accordingly, the moving mechanism can reliably work with the drive mechanism, and it is possible to prevent the coil locked on the hook portion of the commutator member from becoming loose as much as possible.

[0014]

FIG. 1 is a perspective explanatory view of a stator 12 to which a winding device 10 for a stator according to an embodiment of the present invention is applied. The stator 12 includes a plurality of, for example, nine stator cores 14 that are divided for each tooth disposed and held in an outer diameter ring 13 in an annular shape, a plurality of winding coils 16 wound around the stator core 14, A commutator member 18 around which the winding coil 16 is wound.

The stator core 14 is formed by laminating a predetermined number of plates made of an iron-based material having the same shape and elasticity, or is integrally formed by casting with an iron-based material.
The stator core 14 is formed in a substantially T-shape having a head portion 20 and a leg portion 22. At one end side of the head portion 20 in the circumferential direction, a concave portion 24 formed of an arc-shaped space is provided. An arc-shaped convex portion 26 is provided on the other end side in the circumferential direction. A hole 27 is formed in the head 20. The commutator member 18 is formed in a ring shape, and a winding hook portion 28 is provided at an outer peripheral portion thereof at equal angular intervals.

FIG. 2 is an explanatory perspective view showing a schematic configuration of the winding device 10 according to the embodiment of the present invention, and FIG. 3 is a partial sectional side view of the winding device 10.

The winding device 10 has a plurality of, for example, nine holding mechanisms 30 capable of holding the stator core 14 and arranging the legs 22 as rotor-side ends of the stator core 14 in a vertically upward direction. An index table (base) 32 on which the plurality of holding mechanisms 30 are mounted so as to be movable in an annular shape and toward the center of the annular shape (the direction of arrow A).
And a winding mechanism 34 that forms the winding coil 16 on the stator core 14 and locks the linear coil 16a on the hook 28 of the commutator member 18 with the legs 22 arranged vertically upward. The holding mechanism 30 is moved toward the center of the ring to rotate the stator core 14 on which the winding coil 16 is applied from a vertical position to a horizontal position, and to engage the stator cores 14 with each other. A driving mechanism 36 for pressing and a moving mechanism 40 for holding the commutator member 18 and moving the commutator member 18 in the axial direction of the ring (the direction of arrow B) in conjunction with the driving mechanism 36 are provided.

The index table 32 has a ring shape, and has, for example, nine openings 38 at predetermined angular intervals. Index table 32
The moving mechanism 40 disposed at the center of the rotary table has a rotating shaft 42 that can be intermittently rotated integrally with the index table 32, and a flange portion 44 that constitutes a holding unit 43 is formed along the rotating shaft 42. The commutator member 18 is placed on the flange portion 44, and a holding nut 46 is arranged on the commutator member 18. This holding nut 4
Reference numeral 6 has a screw hole to be screwed into a screw part (not shown) formed on the rotating shaft 42. The rotating shaft 42 is connected to lifting means, for example, a rod 50 extending from a cylinder 48.

As shown in FIGS. 4 and 5, the holding mechanism 3
Numeral 0 denotes a movable table 52 which is arranged to be able to advance and retreat in the direction of arrow A with respect to the index table 32, and a swing support member 54 which is provided on the movable table 52 so as to be swingable in the vertical direction and holds the stator core 14. And a clamp means 56 for pressing the stator core 14 against the swing support member 54.

The movable table 52 includes the index table 32
The movable cam 52 can move forward and backward along the upper surface 32 a of the movable table 52, and a driven cam that penetrates through the opening 38 of the index table 32 and engages with the back side of the index table 32 The member 58 is fixed. A tapered surface 60 is provided on the tip end side of the driven cam member 58 in the direction indicated by the arrow A, and is inclined downward in the direction opposite to the direction indicated by the arrow A. A pair of columns 62 are formed on the movable table 52 so as to bulge upward. A swing support member 54 is provided on the column 62 via a shaft 64.

When no external force is applied, the swing support member 54 extends in the horizontal direction as shown in FIG. 4, and a bent portion 66 protruding upward from the end thereof has a stator core 54. A pin 68 that fits into the hole 27 of the fourteen is provided. The swing support member 54 is provided with a curved receiving portion 70 corresponding to the curved shape of the head 20 of the stator core 14.

A clamp member 72 constituting the clamp means 56 is attached to the swing support member 54 at the end opposite to the bent portion 66 via a support shaft 74 so as to be swingable. Support shaft 7
A spring 76 is wound around 4, and the clamp member 72 is urged in the clamp direction via the spring 76. An abutting portion 78 on which the clamp member 72 in an unclamped state is supported in contact with the swing support member 54.
Is provided.

As shown in FIGS. 2 and 3, the winding mechanism 3
4 includes a rotating shaft 80 connected to a rotation driving source (not shown) and rotatable around a vertical axis, and a flyer main body 82 is mounted below the rotating shaft 80. A linear coil 16a constituting the coil 16 can be supplied from a nozzle 84 provided at the tip of the flyer body 82.

The drive mechanism 36 has a push rod 86 arranged corresponding to the position where the stator core 14 is supplied. The push rod 86 is held in a state in which the swing support member 54 is held in the upright position. The clamp member 72 is supported on the open side against the elastic force of the spring 76. A first drive cam member 88 corresponding to the supply position of the stator core 14 or the winding mechanism 34 disposed at another station, and holding the swing support member 54 and the clamp member 72 during the winding operation by the winding mechanism 34. Are arranged to be able to advance and retreat in the direction of arrow A.

On the lower side of the index table 32,
The second drive cam member 90 constituting the drive mechanism 36 is indicated by an arrow B
It is arranged to be able to move forward and backward in the direction. This second drive cam member 9
Reference numeral 0 denotes a ring shape, and a tapered surface 60 of a driven cam member 58 constituting each holding mechanism 30 is formed on an upper outer peripheral side thereof.
Is formed around the tapered surface 92. Nine sets of push rods 94 are provided on the outer peripheral side of the second drive cam member 90 so as to be movable in the vertical direction in correspondence with the number of the holding mechanisms 30. The push rod 94 has a function of changing the posture of the stator core 14 after the winding process from the vertical posture to the horizontal posture by rotating each swing support member 54 by 90 ° around the horizontal axis.

The driving mechanism 36 includes the index table 3
The lifting table 96 is provided above the mounting table 2. The lifting table 96 is provided with nine sets of pressing rods 98 for pressing the clamp members 72 constituting each holding mechanism 30 from above, and each pressing rod 98. Are pressed vertically downward via a spring 100. On the lower surface side of the elevating table 96, nine (or ring-shaped) third drive cam members 104 are provided so as to surround the pressing rod 98, and a lower inner surface of the third drive cam member 104 A tapered surface 106 for pressing the dynamic support member 54 in the direction of arrow A is formed.

The operation of the winding device 10 thus configured will be described below.

First, the stator core 14 is formed by laminating a predetermined number of plates, while the swing support member 54 forming the holding mechanism 30 is held in the upright posture. Then, as shown in FIG. 6, a push rod 86 constituting the drive mechanism 36 is protruded, and the clamp member 72 is forcibly moved vertically upward (opening direction) against the elastic force of the spring 76 by the push rod 86. Supported by In this state, the stator core 14 is disposed on the swing support member 54. At this time, the stator core 14 is inserted into the hole 27 while the arc-shaped outer peripheral surface of the head 20 is guided by the curved receiving portion 70 of the swing support member 54. And is held accurately.

Next, the push rod 86 is retracted, the clamp member 72 constituting the clamp means 56 swings vertically downward (closing direction) by the elastic force of the spring 76, and the clamp member 72 14 is pressed toward the bending portion 66 of the swing support member 54. For this reason, the stator core 14 is pressed and held against the holding mechanism 30. After holding the stator core 14, the swing support member 54 is changed from a vertical position to a horizontal position via the support shaft 64. As a result, the stator core 14 is arranged from the horizontal posture to the vertical posture, that is, the leg 22 that is the rotor-side end is directed vertically upward (see FIG. 5).

In the state where the stator core 14 is rotated to the vertical posture, or from this state, the index table 3 is rotated.
After 2 is indexed, the winding mechanism 34 is driven. In this winding mechanism 34, the linear coil 16a is fed out from a nozzle 84 provided at the tip of the flyer main body 82, and the flyer main body 82 is integrated with the rotary shaft 80 under the action of a rotation drive source (not shown). Rotate. Therefore, the winding coil 16 is attached to the leg 22 of the stator core 14.
Is formed.

At this time, the second drive cam member 90 constituting the drive mechanism 36 is moving upward, and its tapered surface 92
Comes into contact with the tapered surface 60 of the driven cam member 58 and
2 is pressed and supported radially outward in the opening 38 of the index table 32, while the swing support member 54 and the clamp member 72 are moved through the first drive cam member 88 by the arrow A.
Direction (inward radius). Therefore, the holding mechanism 30 is securely and firmly held from both sides in the radial direction via the first and second drive cam members 88 and 90, and the winding operation by the winding mechanism 34 is smoothly and rapidly performed. become.

After the winding operation by the stator core 14 is completed, the winding mechanism 34 once performs a winding process on the hook portion 28 provided on the commutator member 18 and then presses and holds the new holding mechanism 30. The winding work for the stator core 14 is performed. Here, the first drive cam member 88 holds the holding mechanism 30 while the winding operation by the winding mechanism 34 is being performed, and in a direction opposite to the arrow A direction after the winding processing is completed. It moves and is arranged at a predetermined retreat position.

On the other hand, the second drive cam member 90 performs a winding process on each stator core 14 held by all the holding mechanisms 30 so that the holding mechanism 30 does not move in the direction of arrow A when the index table 32 rotates. Until the end, it is engaged with the driven cam member 58.

As described above, in the present embodiment, all (9
After the stator cores 14 are held by the holding mechanisms 30 and the winding coils 16 are formed on the respective stator cores 14 via the winding mechanism 34 (see FIG. 7), the push rod 9
4 moves upward, and the swing support member 54 rotates 90 ° about the support shaft 64 (see FIGS. 8 and 9).

Under the pressing action of the push rod 94, the swing support member 54 constituting each holding mechanism 30 rotates 90 °,
When all the stator cores 14 on which the winding coils 16 are formed are held in a horizontal posture, the second drive cam member 90 moves downward and separates from the driven cam member 58 as shown in FIG. The table 96 descends. For this reason,
First, the pressing rod 98 presses the clamp member 72 constituting the clamp means 56 from above, and this clamp member 7
2, the stator core 14 is firmly pressed and held.

Next, the third driving cam member 104 comes into contact with the swing support member 54, and the movable table 52 is moved to the opening 38 of the index table 32 under the pressing action of the cam surface 106 of the third driving cam member 104. Move in the direction of arrow A. Therefore, the nine holding mechanisms 30 integrally move all the stator cores 14 forming the winding coils 16 toward the center of the ring, and the stator cores 14 engage with each other (see FIG. 11). More specifically, the protrusions 26 provided on the head 20 of the other stator core 14 fit into the recesses 24 provided on the head 20 of the one stator core 14, and the nine stator cores 14 engage with each other. It is arranged in an annular shape. After each stator core 14 is arranged in an annular shape, the stator 12 is obtained by being arranged in the outer diameter ring 13.

When the swing support member 54 is rotated by 90 ° via the push rod 94, the winding coil 16
As a result, the linear coil 16a wound around the hook portion 28 of the commutator member 18 becomes loose.

Therefore, in the present embodiment, as shown in FIG. 9, the rotating shaft 42 holding the commutator member 18 is moved vertically downward by the driving action of the cylinder 48 which is synchronized with the lifting operation of the push rod 94. (In the direction of arrow B), it is possible to apply a predetermined tension to the linear coil 16a. Further, when the holding mechanism 30 moves in the direction of arrow A via the third drive cam member 104, as shown in FIG.
The commutator member 18 descends under the action of the cylinder 48, and a predetermined tension is applied to the linear coil 16 a wrapped around the hook 28 from the winding coil 16.

As described above, in the present embodiment, the driving mechanism 3
When the stator core 14 is turned from the vertical position to the horizontal position via the motor 6 and when the stator cores 14 move toward the center of the ring, the moving mechanism 40 is moved in conjunction with the driving mechanism 36. The composing cylinder 48 is driven, and the commutator member 18 is lowered. As a result, a predetermined tension is always applied to the linear coil 16a bridged between each winding coil 16 and each hook portion 28 of the commutator member 18, and the winding coil 16 becomes loose. Is obtained.

In this embodiment, the stator core 14
Is held by the swing support member 54, the stator core 14 is once placed in the upright position under the rotation of the swing support member 54, so that the winding mechanism 34 is attached to the stator core 14. The winding process can be performed easily and quickly through the above. Further, the stator core 14 after the winding process is
After being rotated from the vertical posture to the horizontal posture, the stator cores 14 are moved toward the center of the annular shape under the pressing action of the third drive cam member 104 so that the stator cores 14 engage with each other to form an annular stator. 12 is obtained.

Thus, the winding process can be performed simply and efficiently by using a single winding device 10, the productivity can be easily improved, and the entire configuration of the winding device 10 can be effectively used. The advantage is that the simplification can be achieved.

In this embodiment, there is provided a moving mechanism 40 which holds the commutator member 18 and moves the commutator member 18 in the axial direction of the ring (the direction of arrow B) in conjunction with the drive mechanism 36. However, instead of or in addition to this, the linear coil 16a wound around the hook portion 28 of the commutator member 18 is moved in the circumferential direction of the ring (the direction of arrow A).
, A moving mechanism (not shown) for pulling.

[0043]

According to the winding device for the stator according to the present invention,
After the winding process of the coil and the locking process of the commutator member to the hook portion are performed in a state in which the rotor-side end portion of the stator core is arranged in the vertical direction, the stator core is rotated in the horizontal direction. By engaging the stator cores with each other, an annular stator can be obtained easily and quickly. At that time, the moving mechanism is driven in conjunction with the driving mechanism, and the commutator member moves in the axial direction and / or the circumferential direction, so that a predetermined tension can always be applied to the coil. In addition, the configuration is simplified, the number of parts can be reduced, and the manufacturing cost can be effectively reduced.

[Brief description of the drawings]

FIG. 1 is a perspective explanatory view of a stator to which a winding device according to an embodiment of the present invention is applied.

FIG. 2 is an explanatory perspective view showing a schematic configuration of the winding device.

FIG. 3 is a partial cross-sectional side view of the winding device.

FIG. 4 is an explanatory perspective view of a main part of the winding device.

FIG. 5 is an explanatory side view of a main part of the winding device.

FIG. 6 is an operation explanatory diagram when a stator core is arranged in the winding device.

FIG. 7 is an explanatory plan view when a winding process is performed on the stator core.

FIG. 8 is an operation explanatory diagram when the stator core after the winding process is converted into a horizontal posture.

9 is a schematic operation explanatory view of the stator core after the winding process shown in FIG. 8;

FIG. 10 is an operation explanatory diagram when the stator cores after the winding process are engaged with each other.

11 is a schematic operation explanatory view of the stator core after the winding process shown in FIG. 10;

FIG. 12 is an explanatory diagram of a unit core according to the related art.

FIG. 13 is an explanatory diagram when a winding process is performed on the unit core.

FIG. 14 is an explanatory view when a stator is manufactured by combining the unit cores.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 10 ... Winding device 12 ... Stator 14 ... Stator core 16 ... Winding coil 16a ... Linear coil 18 ... Commutator member 20 ... Head 22 ... Leg 27 ... Hole 28 ... Hook 30 ... Holding mechanism 32 ... Index table 32a ... Upper surface 34 ... Winding mechanism 36 ... Drive mechanism 38 ... Opening 40 ... Moving mechanism 42 ... Rotating shaft 43 ... Holding means 44 ... Flange 48 ... Cylinder 52 ... Movable table 54 ... Swing support member 56 ... Clamping means 58 ... Followed cam members 60, 92, 106 ...
Taper surface 62 ... Support portion 64, 74 ... Support shaft 66 ... Bending portion 68 ... Pin 70 ... Bend receiving portion 72 ... Clamp member 76, 100 ... Spring 80 ... Rotating shaft 82 ... Flyer body 84 ... Nozzle 86, 94 ... Push rod 88, 90: driving cam member 96: elevating table 98: pressing rod 104: driving cam member

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 5H615 AA01 BB01 BB02 BB14 PP01 PP07 PP10 PP13 PP15 PP26 QQ02 QQ19 SS05 SS10 SS12 SS15 SS19 TT13

Claims (3)

[Claims] 1. A plurality of holding mechanisms for holding a stator core divided for each tooth and capable of vertically arranging a rotor-side end of the stator core in a vertical direction; A base movably mounted toward the center of the ring, and a coil wound around the stator core and the coil locked to a hook portion of a commutator member in a state where the rotor-side end is vertically arranged. A winding mechanism that rotates the stator core around which the coil is wound from a vertical posture to a horizontal posture, and moves the holding mechanism toward the center of the ring to engage the stator cores with each other. A drive mechanism that holds the commutator member and moves the commutator member in the axial direction and / or the circumferential direction of the ring in conjunction with the drive mechanism; Winding apparatus of the stator, characterized in that it comprises. 2. The winding device according to claim 1, wherein the holding mechanism is provided with a movable base movably arranged with respect to the base, and is swingably provided in a vertical direction with respect to the movable base. And a swing support member for holding the stator core. 3. The winding device according to claim 1, wherein the moving mechanism includes: a rotating shaft that intermittently rotates integrally with the base; holding means for holding the commutator member on the rotating shaft; A stator winding device, comprising: elevating means for elevating and lowering a rotating shaft.