JPS594936B2 - Tooling for winding and assembly of stator coils for motors - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a tooling for winding and assembling a stator coil for a motor so that winding and assembling can be performed using a single tooling.

Japanese Unexamined Patent Publication No. 49-25 discloses that the winding of the stator coil for a motor and the insertion into the stator core are performed using the same device.
A device disclosed in Japanese Patent No. 401 has been proposed.

As shown in FIG. 1, this device has a tooling in which tooling blades 101 of different lengths are arranged at predetermined intervals on the same circumference, and auxiliary plates 102 of different lengths are arranged outside the tooling blades 101. A flyer 1 that rotates around an axis X-X tilted at a predetermined angle with respect to the tooling axis Y-Y.
03, a pair of blades 101a selected from the blades 101 and an auxiliary plate 102a constitute a winding frame, and the wire 104 drawn out from the flyer 103 is wound around the winding frame to form a coil 105. After forming a required number of coils 105, the coils 105 are inserted directly from the blades 101 into the stator core.

However, in such a device, the blade 101a
The wire 104 wound around the tip of the auxiliary plate 102a is rotated by the blade 101a due to the tension applied to the wire 104.
However, in the auxiliary plate 102a section, the wire 104 does not have the force to slide on the auxiliary plate 102a, so the wire 104 is wound on the auxiliary plate 102a. The wires 104 are concentrated in a dumpling shape at the jaw portion 102b of the auxiliary plate 102a.

Also, due to the friction between the coil 103 and the blade 101a, the coil 105 slides over the blade 101a and is not at right angles to the flade 101a.

For this reason, in the above device, the number of turns of the coil 105 is limited to the range that can be supported by the jaw portion 102b of the car auxiliary plate 102a. The space factor becomes smaller.

Further, since the coil 105 is not aligned, the insertability into the stator core is extremely poor, and the coil 105 is easily damaged.

Furthermore, since the lengths of the blades 101 are different, if the coil 105 is wound around a long blade 101, the circumference of the coil 105 must be increased by the length of the blade 101.
Since the coil 105 cannot exceed the blade 101, the coil 105 becomes longer than necessary as a product.

Therefore, the performance of the coil 105 is degraded.

It also has many drawbacks, such as the inability to wind two coils alternately on the same blade 101.

SUMMARY OF THE INVENTION An object of the present invention is to provide a tooling for winding and assembling wires of a stator coil for a motor, which enables direct alignment winding on tooling blades and solves the drawbacks of the prior art.

In order to achieve the above object, in the present invention, a touring blade is divided into a main blade and a sub-blade at a predetermined interval, and the sub-blade is arranged so as to be movable up and down with respect to the main blade. Lowering the secondary blade to form a passage for the flyer between the main blades,
Two main blades and one auxiliary plate constitute one winding frame, and when inserting the coil wound around this winding frame, the secondary blade is held so that its upper end is at the same height as the upper end of the main blade. The feature is that the touring structure is configured by raising the vehicle to a certain extent.

An embodiment of the present invention will be described below with reference to the drawings.

2 to 5 show an embodiment of the present invention,
In the figure, a blade guide 12 is fixed to the center of a base 11. As shown in FIG.

A plurality of backups 13 and supports 14 each having a stepped portion formed at the upper end thereof are alternately fixed to the blade guide 12 at predetermined intervals.

A hole 16 of a wedge guide 15 is slidably fitted into each backup 13 and support 14, and one end of the hole 16 is adapted to engage with the stepped portion.

Further, a stopper 17 is formed at the lower end of the hole 16 of the wedge guide 15.

Each wedge guide 15 that engages with the backup 13 is slidably engaged with a main blade 18 having a groove that slidably fits into the outer shape of the wedge guide 15 . The lower end of the main blade 18 is connected by a spring 19 and fixed integrally with a holder 20.

Similarly, each wedge guide 15 engages with a support 14.
A sub-blade 21 having a groove that fits with the outer shape of the wedge guide 15 is slidably engaged with the wedge guide 15, and is connected to the wedge guide 15 by a spring 19, and the lower end of the sub-blade 21 is also They are fixed together with a holder 22.

The main blade 18 and the sub blade 21 are arranged so as to be located on the same circumference, and a coil insertion piece 23 is located on the holder 20 at the center thereof.
Moreover, it is slidably fitted into the main blade 18 and the sub blade 21.

The wedge guide 15, the main blade 18, the sub blade 21, and the piece 23 constitute a tooling.

First auxiliary plates 26 in the shape of an abbreviation are rotatably provided on the bases 24 disposed at predetermined positions on the base 11 by means of pins 25, and springs 27 apply rotational force in the radial direction of the base 110. is added.

Similarly, the guide 28 disposed at a predetermined position on the base 11 has a second oblong shape formed by a pin 31 on a base 30 that slidably fits into a groove 29 formed in the guide 28. An auxiliary plate 32 is rotatably supported, and a spring 33
As a result, rotational force in the radial direction of the base 110 is applied.

The auxiliary plate 26 and the auxiliary plate 32 are arranged at the winding position and the standby position, respectively, and are slightly inclined so that the upper end thereof is farther away from the main blade 18 than the lower end thereof.

The two main blades 18 and one auxiliary plate 2
6 or the auxiliary plate 32 constitute a winding frame.

The annular holding plate 34 is disposed so as to pass over the first auxiliary plate 24 and through the groove 28' of the guide 28.

An arm 35 is attached to the presser plate 34, and an arm 35 is attached to the second auxiliary plate 3.
A roller 36 is provided so as to straddle the arm 35 and is rotatably supported by the arm 35 so as to press the auxiliary plate 31.

Further, a pin 37 that slidably penetrates the base 11 is implanted on the lower surface of the presser plate 34, and a spring 38 is inserted between the pin 37 and the base 11.

The counter pressure of the spring 38 is configured to clamp the presser plate 34 and suppress the rotation of the first and second auxiliary plates 26,32.

A stator coil winding and assembling device using the winding and assembling tooling having such a configuration is configured as shown in FIG. 6, for example.

That is, the wire winding and assembling device A is connected to a two-stage upper and lower pedestal 42 fixed on a base 41 and a motor 43 disposed in the lower part of this pedestal 42 via a reducer 44, and a conveyance means consisting of a rotary table 46 fixed to one end of a shaft 45 that rotatably passes through the wire, a winding wire tooling B rotatably disposed on the rotary table 46, and a wire winding tool B rotatably disposed on the rotary table 46; a driving means C disposed corresponding to the index position of the wire assembly tooling B for index rotation of the winding wire assembly tooling B; and struts 47, 47', 4 fixed to the base 41;
f, the winding means D, D', which forms a coil with a flyer 51 on the winding frame configured in the tooling B for winding and assembling at the index position of the tooling B for winding and assembling;
d (D'.

σ is the same as D, so the illustration is omitted), and the winding assembly is performed at the index position of the winding and assembly tooling B on which all the required coils are formed on the support 48 fixed to the base 41. A holding means E for the stator core 7 which is supported so as to face the upper end of the wire tooling B and which fits the stator core into the winding and assembly wire tooling B, the base 41 and a mount fixed to the base 41. 49 is supported so as to face the holding means E across the wire winding and assembling tooling B, and the coil formed on the winding and assembling tooling B and the wedge supplied by the wedge supplying means G. , an insertion means F including a blade 57, a push-up shaft 52, and an insertion shaft 53 to be inserted into the stator core I held by the holding means E; and a flyer 51 supported by the support column 47 and connected to the winding means. It is constituted by a claw for gripping and routing the end of the wire pulled out from the wire rod, and a handling means H consisting of a holder 54 supported by the winding wire tooling B and holding the end of the wire.

Also, strut 47.47'. A cylinder 55 is provided at a predetermined position of 4f, facing the stand 30 of the indexed wire winding tooling B, and at the insertion position, a cylinder 56 is provided on the pedestal 49 so as to face the pin 37. It is provided.

In FIG. 3, the relative position with the winding means during winding is shown by a dashed-dot line, and the relative position with the holding means E, insertion means F, and wedge supply means G during insertion is shown with a two-dot chain line. This is an indication.

In the above configuration, as shown in FIGS. 3 and 4, when the wire winding tooling B is positioned at the tip of the winding means lever with the sub blade 21 lowered relative to the main blade 1.8. . . . The wire rod 3 protruding from the flyer 51 is clamped by the claws of the linking means H, pulled out from the flyer 51, and held by the holder 54.

The flyer 51 then rotates to form a coil between the two main blades 18 and one auxiliary plate 26.

At this point, in the flyer 51, the sub blades 21 descend and pass through the space formed between the adjacent main blades 18 to perform winding.

When a predetermined number of turns of the coil 4 is formed, the flyer 51 stops, and the driving means C is activated to rotate the base 11 to index the winding wire tooling B, and then the flyer 51 rotates again to index the winding wire tooling B. A required coil 4 is formed between the main blade 18 and the auxiliary plate 26.

When the required number of coils 4 are formed in this way, the handling means H causes the wire 3 drawn out from the flyer 51 to be held by the holder 54 in the same manner as described above, and its terminal end is cut.

Then, the rotary table 46 rotates and transfers the wire winding tooling B to the next wire winding means D' supported by the support 17'.

When the wire winding tooling B stops, the cylinder 55 operates to push the stand 30 and push the auxiliary plate 32 from the standby position to the winding position.

On the other hand, the wire rod 3 drawn out from the flyer 51 of the winding means is held in the holder 54 by the winding means H supported by the support 17'.

In this state, the flyer 51 is rotated to form the coil 4 between the main blade 18 and the auxiliary plate 32 in the same manner as described above.

After forming the required number of coils 4 in the same manner, the winding and assembly tooling B is fed between the holding means E and the insertion means F and stops, and the wedge supply means G rises to hold the holder 22. Push it up until it contacts the holder 20, and align the height of the sub blade 21 with the main blade 18 to form a tooling.

At this point, the wedge guide 15 is moved by the spring 19.
also rises, and all the wedge guides 15 are at the same height.

Next, the cylinder 56 is actuated to push up the pin 37 and push up the presser plate 34.

Then, due to the counter pressure of the springs 27 and 33, the auxiliary plate 2
6.32 rotates in the direction of touring.

At the same time, the blade 57: push-up@52 and insertion shaft 53 rise, and the blade 57 pushes out the wedge from the wedge supply means G and inserts it between adjacent wedge guides 15, and the push-up shaft 52 pushes up the holder 22. The main blade 18 and the sub blade 21 are inserted into the stator core 7.

At this time, the wedge guide 15 hits the lower end surface of the stator core 7 and stops, so the spring 19 is stretched.

Further, as the piece 23 rises, the coil 4 is removed from the winding frame (main blade 18 and auxiliary plate 26 or 32), and is moved along the main blade 18 and the auxiliary blade 21 to the stator core 7.
transferred to the side.

When the blade 5γ and the insertion shaft 53 further rise, the wedge inserted between the wedge guides 15 is pushed by the blade 5γ and inserted into the slot of the stator core 7.

At the same time, the insertion shaft 53 pushes up the piece 23, and the piece 23 causes the coil 4 to pass between the main blade 18 and the sub blade 210 and be inserted into the slot of the stator core 7. In this way, the wedge and the coil 4 are inserted. When finished, the blade 57, the insertion shaft 53, and the push-up shaft 52 are lowered to predetermined positions, and the main blade 18, the sub-blade 21, and the piece 23 are pulled out from the stator core 7.

At the same time, the wedge supply means G is also lowered to a predetermined position.

Then, the wedge guide 15 is locked by the stepped portion of the backup 13 or support 14, and the main blade 1
8 and the auxiliary blade 21 are each stopped by a stopper 17 formed on the wedge guide 15.

As described above, according to the present invention, the coil can be inserted into the stator core 7 without transferring it from the winding frame to the tooling.

In the above embodiment, the main blade 18 or the auxiliary blade 21 and the wedge guide 15 are connected by a spring 19 in order to adjust the stacking thickness of the stator core 7 arbitrarily. , the wedge guide 15 is connected to the main blade 18 or the sub blade 2.
1 may be fixed to the holder 20 or 22.

Furthermore, if the auxiliary plates 26 and 32 are slightly inclined so that the distance from the main blade becomes narrower from the lower end to the upper end, there is no need to rotate the auxiliary plates 26 and 32.

As described above, according to the above embodiment, since the coil is wound in an aligned manner on the tooling blade, the number of turns of the coil can be increased, and the space factor of the coil with respect to the slot of the stator core can be improved. .

In addition, ease of insertion is improved, and damage to the coil during insertion can be greatly reduced.

Furthermore, since the heights of the blades are the same when inserted, the circumferential length of the coil can be reduced to the minimum necessary length, and the performance of the motor can be improved.

It also allows the formation of alternating overlapping coils on the same main blade.

Furthermore, by making the auxiliary plate rotatable, the coil can be easily taken out from the winding frame.

Further, by connecting the main blade and the sub blade to the wedge guide with a spring, it is possible to deal with changes in the stator core stack thickness.

As described above, according to the present invention, it is possible to form a coil wound in an aligned manner on the main blade and insert the coil directly into the stator core from the main blade, thereby shortening the circumference of the coil and increasing the number of turns. It is possible to improve the performance of the motor.

Furthermore, it is possible to form overlapping coils, and the applications of the device can be greatly expanded.

[Brief explanation of the drawing]

FIG. 1 is a side view showing a conventional tooling for winding and assembling a stator coil for a motor; FIG. 2 is a plan view showing an embodiment of the tooling for winding and assembling a stator coil for a motor according to the present invention; The figure is a sectional view taken along III-III in Figure 2, Figure 4 is an enlarged view of the main part in Figure 3, and Figure 5 is a V--■ in Figure 4.
6 is a perspective view showing an example of a winding and assembling device using the tooling for winding and assembling a stator coil for a motor according to the present invention, and FIG. 7 is a plan view showing the winding state. 12...Blade guide, 15...Wedge guide, 18...Main blade, 19...Spring, 21
... Sub-blade, 23... Piece, 26... Auxiliary plate,
27...Spring, 32...Auxiliary plate, 33...
Spring, 34...pressing plate.

Claims (1)

[Claims] 1 Inside multiple support members arranged on the same circumference,
A plurality of blades each supporting a wedge guide, a piece disposed in the center of the blade so as to be slidable with respect to the blade, and a piece arranged at a predetermined interval outwardly of the support member. In the tooling for winding and assembling a stator coil for a motor, which is provided with a plurality of auxiliary plates, the blades are divided into a main blade and a sub-blade at a predetermined interval, and the sub-blade is arranged to be movable up and down with respect to the main blade. During winding, the sub blade is lowered relative to the main blade to form a flyer passage between the main blades, and the two main blades and one auxiliary plate form one winding frame. A stator coil winding for a motor, characterized in that when inserting the coil wound around the frame, the sub blade is raised so that its upper end is at the same height as the upper end of the main blade to form a tooling. Tooling for wire assembly.