JPH08223874A - Winding device for armature - Google Patents

Abstract

PURPOSE: To increase an output by increasing a number of windings with the winding made approximate to a normal winding by a simple constitution. CONSTITUTION: An opening part 27a exposing only a required tongue 13a is provided on the tip side of a single shield member 27 enveloping a commutator 13 of an armature 10, and after a lead wire 1c of a coil supplied from a flier 34 is wound around the tongue 13a, the shield member 27 is turned about 90 deg. in a direction of arrow mark around an axial line X, so that the lead wire 1c is extruded to firmly fasten a wire connecting part, and to place a position of the opening par 27a in a vertical direction. In this condition the shield member 27 is a little retracted and placed in a position of covering a base part of the tongue 13a, and after a plurality of the coils are wound by spreading a winding space, further the shield member is placed in a position of exposing the commutator 13, so as to cut the lead wire in the winding end.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a winding device for an armature in a rotary electric machine such as a motor, and more particularly, it has a hooking device for connecting the lead wire of each wound coil to a predetermined tongue of a commutator. The present invention relates to an armature winding device.

[0002]

2. Description of the Related Art A wire supplied from a rotating flyer is wound around a core of an armature for index rotation to form a plurality of coils, and a lead wire of each coil is connected to a predetermined tongue of a commutator. As a winding device, a double drive winding device has been conventionally known (for example, see Japanese Patent Laid-Open No. 61-224323).

An outline of this will be described with reference to FIGS. In the following description, only the upper part of the vertically symmetrical portion will be described and the lower part will be omitted. As shown in FIG. 5, the core 12 and the commutator 13 of the armature 10 are integrally fixed to the shaft 11 at predetermined intervals on the same axis line, and have a plurality of slots 12a and tongues 13a on the outer peripheral portion. Device 20 for forming an index and rotating the axis X horizontally for index rotation
The shaft 11 on the commutator 13 side is gripped by the.

Further, as shown in FIG. 6, the collet device 20 is sandwiched by the axis (same as the axis of the armature 10) X, and is orthogonal to the axis X on both sides in the horizontal direction (left and right direction in FIG. 6). A pair of support shafts 31 and 31 that can approach or separate from each other is provided, and a pair of winding chucks 32 and 3 are provided at the tip ends thereof.
2 is swingably mounted on both side surfaces of each winding chuck 32 to stabilize the flow of the wire 1 into the slot 12a.
Formers 33, 33 are provided to regulate the shape of the coil end exposed to the outside of the slot 12a and prevent the insulating paper (not shown) housed in the slot 12a from shifting. The wire 1 for coil winding is attached to each support shaft 31.
The flyers 34, 34 for supplying the water are attached so as to be rotatable.

Referring again to FIG. 5, gripper devices 40 are provided above and below the collet device 20 symmetrically with respect to the axis X. The gripper device 40 includes a gripper 41 that grips a lead wire at the beginning of winding, and an inversion drive unit 42 that inverts the gripper 41 by 180 degrees, and is moved up and down by an elevating device 43. The gripper 41 is substantially parallel to the tongue 13a of the commutator 13 that is held horizontally, and
It is arranged to be perpendicular to the axis X by being inverted by 80 degrees.

On the other hand, as shown in FIG. 7, the collet device 20 includes a collet chuck 2 that grips and releases the shaft 11 of the armature 10 by moving the outer sleeve 21 in the direction of the axis X.
2, a spring 23 is engaged between the outer sleeve 21 and the outer sleeve 21, and is urged to the left side in the figure.
Two upper and lower protrusions 2 capable of pressing and fixing the connection portions of a and 13a
4a, 24a, a loosely fitted outer peripheral portion of the slider 24, and a narrow opening 25a, 25a at the top and bottom of the tip (left end in the figure), and an opening 25b wide at the left and right,
25b (only one of which is shown in the figure), which can be slightly rotated, is loosely fitted to the inner shield 25 and its outer peripheral portion, and is slid in the axial direction so that the opening portion 25 is formed.
The outer shield 26 hides a and 25b, and the inner shield 25 and the outer shield 26 form a hooking mechanism.

Although the above-mentioned structure is a system without a surplus line, which is usually called scrapless, in the generally used system with a surplus line, the gripper 41 of the gripper device 40 is located at a position slightly away from the commutator 13. The structure is simplified by connecting the tongue from the beginning to the end at a position right next to it. Therefore, in that case, the inner shield 25 has the left and right openings 2
Only 5b and 25b are provided.

Next, a winding method and a connecting method by the winding apparatus having such a structure will be described mainly with reference to FIGS. 7 to 9 and also referring to other figures as appropriate. 9 is a partial cross-sectional side view showing only the main part of FIG. Lead wire 1 at the beginning of winding drawn from the flyer 34 (FIG. 6)
The gripper 41a of the gripper 41 grips a. In this state, together with the collet chuck 22, the outer sleeve 21, and the inner shield 25 shown in FIG. 7, the armature 10 is index-rotated, and as shown in FIG.
After making the tongue 13a of the above directly above, the gripper apparatus 40 is lowered and it will be in the state of the same figure (b).

Then, the outer sleeve 21 and the inner shield 25 are retracted to move the shaft 1 by the collet chuck 22.
1 is released, the outer shield 26 is retracted, the turning position of the flyer 34 is adjusted, and the lead wire 1a at the beginning of winding from the flyer 34 to the grip portion 41a of the gripper 41 is inserted into the opening 25a in the upper portion of the inner shield 25. After the inner shield 25 is slightly guided and the inner shield 25 is slightly rotated, the flyer 34 is reversed and the outer shield 26 is moved forward, so that the lead wire 1a goes around the tongue 13a to complete the initial connection at the beginning of winding.

When the first connection is completed, the outer sleeve 21 is moved forward again to firmly grip the shaft 11 of the armature 10 by the collet chuck 22, and the outer sleeve 21 unwinds the slider 24 so that the slider 24 is spring 23.
And the protrusion 24a firmly presses and fixes the wire connection portion and holds it in this state until the winding is completed, preventing the lead wire 1a from being pulled when the coil is wound and the initial wire connection being removed. To do. When the first connection portion is fixed, the gripper device 40 releases the wire 1 and moves up by a predetermined distance, and at that position, the reversing drive portion 42 causes the gripper 4 to move.
1 is inverted by 180 degrees to be in the state shown in FIG.

In parallel with this, the collet chuck 22 is index-rotated to bring the core 12 to the initial coil winding position, and then the pair of winding chucks 32, 32 holds the core 12 from both sides in the horizontal direction and winds it. Slot 12a to be lined
To cover the outer surface of the wire and swirl the flyer 34 to wind the wire between the exposed slots to form the first coil.

When the formation of the first coil is completed, the winding chucks 32, 32 are retracted from the core 12, and the collet chuck 22 is index-rotated by a predetermined angle to rotate the commutator 1.
After the second tongue No. 3 is located on the side of the axis X, the outer shield 26 is retracted to introduce the lead wire at the end of the first coil winding into the opening 25b right next to the inner shield 25. Of the lead wire at the beginning of the second coil winding by connecting the second tongue by a well-known connecting means by reversing and rotating the outer shield 26.

Thereafter, the same steps are repeated to form the second, third, ... Coils, and the lead wire 1c is formed each time.
(FIG. 9) is connected to the second, third, and fourth tongues, and after the final coil formation, the outer sleeve 21 and slider 24 are temporarily
Is retracted, the collet chuck 22 is released, and connection to the nth tongue 13n (corresponding to the first tongue of the winding by the other flyer) is performed.

After that, the collet chuck 22 grips the shaft 11 again and rotates the index to position the nth tongue 13n right above and retract the slider 24.
The gripper device 40 is lowered and the grip portion 41a is moved to the tongue 13
At the same time as cutting the lead wire by the cutter portion 41b attached to the gripper 41, the wire terminal 1b on the flyer 34 side is gripped, and the grip portion 41a is vertically inverted to make the grip portion 41a perpendicular to the axis line X. Prepare for the next armature winding.

[0015]

However, in such a conventional armature winding device, the hooking means provided on the outer peripheral portion of the collet device is the inner shield 25.
Since the double structure is composed of the outer shield 26 and the outer shield 26, there are the following problems.

Originally, the action of the outer shield 26 is such that when the commutator 13 is connected to the tongue 13a, the tongue 13 is
The lead wire 1c hooked on a is pushed out to strengthen the connection, and at the time of wire winding, the inner shield 25
The openings 25a and 25b are covered to reduce damage to the wire. Therefore, the outer shield 26 is required to sufficiently cover the tip portion of the inner shield 25 during wire winding.

However, with the recent trend toward compact motors, the diameter of the core 12 of the armature 10, the shape of the slot 12a, and the shape of the commutator 13 are becoming extremely small, and the distance between the commutator 13 and the core 12 is extremely large. It's getting tighter. Nevertheless, as a result of demanding higher performance and output than ever before, the winding diameter tends to be large and the number of windings tends to increase. Further, since the former 33 described above is provided on both side surfaces of the winding chuck 32 that holds the core 12 from both sides, the winding space formed between the inner shield 25 and the outer shield 26 and the former 33 is small. The result will be even tighter.

Considering only the winding of the core 12 into the slot 12a, the former 33 is installed in order to store the wire 1 in the bottom of the slot 12a while stabilizing the flow leading to the slot 12a, and to bring it closer to the aligned winding as much as possible. It should be as thick as possible, and it is further preferable that there be no obstacles such as the outer shield 26 other than the former 33 with respect to the flow of the wire in the winding. This invention was made in view of the above points,
It is an object to bring the windings closer to the aligned windings with a simple structure to increase the number of windings and increase the output.

[0019]

In order to achieve the above object, the present invention provides winding means for winding a wire supplied from a rotating flyer around an armature core to form a plurality of coils, and each coil. And a hooking means for connecting the lead wire to a predetermined tongue of the commutator, the hooking means surrounding the commutator having a single opening having an opening for exposing only the required tongue. A shield member, a multistage linear positioning means for moving the shield member in the axial direction to position it at a predetermined linear position, and a rotary positioning means for rotating the shield member around the axis position at a predetermined rotational position. An armature winding device is provided.

In the armature winding device described above, the predetermined linear position exposes the hooking position that covers the entire commutator, the winding position that covers most of the commutator up to the base of the tongue, and the entire commutator. The lead wire cutting position is preferable, and the predetermined rotation positions are a position for exposing and covering a required tongue of the commutator.

Further, in the above apparatus, the multistage linear positioning means may be composed of a tandem cylinder for driving the shield member in the axial direction, and the rotary positioning means may rotate the shield member around the axis by a predetermined angle. The mechanism may be a mechanism or a rack and pinion mechanism.

[0022]

By constructing the armature winding device according to the present invention as described above, the hooking means, which has conventionally been made up of a double structure of an inner shield and an outer shield, can be provided.
Since it is composed of a single shield member, and this shield member is moved in the axial direction and rotated around the axis line, the structure can be simplified and the wire flow is obstructed during winding. Since the outer shield which has been used as described above is eliminated, the number of windings can be increased by bringing the windings closer to the aligned windings.

By setting the position where the shield member is linearly moved to the hooking position that covers the entire commutator, it is possible to sufficiently cover the tongues other than the required tongue and eliminate the possibility that the wire is entangled with other tongues. By setting the winding position that covers most of the commutator up to the base of the tongue, it is possible to secure the winding space, and by setting the lead wire cutting position that exposes the entire commutator, the space where the cutter enters Can be secured.

In the above hooking position, the shield member is rotated from the position where the required tongue of the commutator is exposed to the position where the shield member is covered so that the lead wire is extruded and the connection portion is firmly tightened. In addition, the position of the opening can be moved to achieve stable winding that does not interfere with the tongue.

Further, by driving the shield member with a tandem cylinder, it is possible to perform positioning at a predetermined multi-stage linear position with a simple mechanism, and by rotating around the axis line with a link mechanism, reliable rotational positioning is possible. Becomes Further, when the shield member is rotated by a predetermined angle by the rack and pinion mechanism, the shield member can be rotated with an extremely simple structure, and
The rotation angle of the shield member can be freely set by changing the movement amount of the rack.

[0026]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be specifically described below with reference to the drawings, but the portions corresponding to FIGS. FIG. 1 is an operation explanatory view of a hooking device showing an embodiment of the present invention, FIG.
FIG. 3 is an operation explanatory view showing a multistage linear positioning mechanism of the shield member, and FIG. 3 is a front view showing a rotary positioning mechanism of the shield member.

In this embodiment, the inner shield 25 and the outer shield 26 of the collet device 20 shown in FIG. 7 are integrated into a shield member 27, and the axis X of the tip portion thereof is used.
A pair of openings 27 for the tongue guides symmetrically with respect to
a and 27a are formed, and this shield member 27 is attached to the axis line X.
It is configured such that it can be positioned by driving it in a multi-stage linear position in the direction and rotated by 90 degrees around the axis line X.

The multi-stage linear positioning means for positioning the shield member 27 at a predetermined linear position, as shown in FIG.
The shield member 27 includes a tandem cylinder 50 in which a first cylinder 51 and a second cylinder 52 capable of linearly driving the shield member 27 are connected in series, and a stopper 53 that restricts an extension end of the tandem cylinder 50.
The piston rod 51a of the first cylinder 51 is fixed to the flange portion 27e of the shield member 27, and the left end of the piston rod 52a of the second cylinder 52 in the drawing can be brought into contact with and separated from the piston 51b of the first cylinder 51. .

On the other hand, as shown in FIG. 3, the rotary positioning means for rotating the shield member 27 around the axis X and positioning the shield member 27 at both rotary ends thereof includes a cylinder 60 fixed to the device fixing portion and a device fixing portion. A bell crank 62 pivotally mounted on a shaft 61, a connecting rod 63 for connecting a shaft 62a provided at one end of the bell crank 62 and a piston rod 60a of the cylinder 60, and a shaft provided at the other end of the bell crank 62. 62b and a link 64 connecting the shaft 27b provided on the flange portion 27e of the shield member 27.

Incidentally, other members constituting the inside of the collet device 20, the outer sleeve 21, the collet chuck 2
2, the spring 23, and the slider 24 are the same as those shown in FIG. 7, and the winding chuck 3 that constitutes the other part of the winding device.
2, the flyer 34, the gripper device 40, the lifting device 43, etc. are the same as those of the conventional example shown in FIGS.

Next, the operation of the embodiment configured as described above will be described. However, description of the same parts as those of the conventional example shown in FIGS. 5 to 9 will be omitted, and only different parts will be described. In addition,
The above-mentioned conventional example relates to a scrapless winding device, and in this embodiment, in order to simplify the description and clarify the gist of the invention, it is described as a general winding device that is not scrapless. It can be used for scrapless winding devices without any problems.

The commutator 1 to be hooked by index-rotating the collet chuck 22 shown in FIG.
After the tongue 13a of No. 3 is set to the side position, the first and second cylinders 51, 52 of the tandem cylinder 50 shown in FIG.
Both pistons 51b and 52b are moved to the left in the figure until the shield member 27 is brought into contact with the stopper 53 so that the shield member 27 completely positions the commutator 13 and is positioned at the leftmost hooking position P1. The piston rod 60a is raised to bring the bell crank 62 and the shield member 27 interlocking with the bell crank 62 through the link 64 to the right-hand end position shown by the solid line in FIG.

FIG. 1A shows this state, in which the required tongue 13a of the commutator 13 is exposed in the opening 27a of the shield member 27,
Its tip is covered with a well-known tongue guide (not shown). Further, the lead wire 1c pulled out from the flyer 34 is wound around the base of the tongue 13a by a half turn by rotating the flyer from the lower side to the upper side.

In this state, when the piston rod 60a of the cylinder 60 shown in FIG. 3 is extended downward, the shield member 27 rotates counterclockwise via the connecting rod 63, the bell crank 62 and the link 64. As a result, FIG.
(B), the shield member 27 rotates approximately 90 degrees while the side surface of the opening 27a presses the lead wire 1c firmly against the tongue 13a, and the opening 27a does not interfere with the wire 1 at the time of winding. The vertical position shown in (c) of FIG. 1 is maintained at the rotational position.

When the rotation of the shield member 27 is completed, the first cylinder 51 of the tandem cylinder 50 is actuated and the piston 51b is moved to the second cylinder 5 together with the shield member 27.
2 is moved rightward to the winding position P2 shown in FIG. At this position, the left end of the shield member 27 is retracted to a position where it barely covers the base of the tongue 13a of the commutator 13, so that the winding space between the commutator 13 and the core 12 can be made as large as possible.

In this state, the armature 10 is rotated by a predetermined angle to wind between the predetermined slots 12a, 12a of the core 12 to form a coil, and then the armature 10 is rotated by a predetermined angle and the shield member 27 is linearly moved. And the rotation is repeated to alternately perform hooking and winding. When the final hooking is completed, the piston rods 51a and 52a of the first and second cylinders 51 and 52 are driven together to completely remove the shield member 27 from the commutator 13. After the lead wire cutting position P3 shown in (c) of FIG. 2 is set back, the cutter wire 41b of the gripper 41 shown in FIG. 5 cuts the lead wire at the end of winding to complete the winding.

In the above-described embodiment, the outer shield 26 (FIG. 7), which is an obstacle to the wire flow during winding, is eliminated, and only a single shield member 27 corresponding to the conventional inner shield 25 is used. The shield member 27
By providing the multi-stage linear positioning means and the rotary positioning means, it is possible to naturally make the wire flow and bring the windings closer to the aligned windings, and to increase the number of windings as much as possible to a small number of windings, thereby increasing the output. It will be possible.

At the same time, when hooking on the tongue 13a,
By rotating the shield member 27, the lead wire 1c is pushed out to enable stable hooking, and
By rotating the shield member 27 by a predetermined angle, the opening 27a can be moved to a position where it does not interfere with the winding, and extremely stable winding is possible.

Next, FIG. 4 is an explanatory view showing the operating states of the multistage linear positioning means and the rotary positioning means of the shield member 27 in another embodiment of the present invention. In this embodiment, a circumferential guide groove 27c is provided near the right end of the thick portion of the shield member 27, and a U-shaped bracket 54 fixed to the tip of the first cylinder 51 of the tandem cylinder 50 is provided in the guide groove 27c. By loosely fitting the strip-shaped portion 54a, the shield member 27 moves in the axial direction X to the bracket 54.
Displaces by moving with and becomes free in the direction of rotation.

Further, a gear portion 27d is carved on the outer peripheral surface of the thick portion of the shield member 27a, and the gear portion 27d is meshed with rack teeth 65a carved on the plane portion of the semi-cylindrical rack 65, The shield member 27 is rotated around the axis X by the rack and pinion mechanism by moving the rack 65 by a cylinder (not shown) at right angles to the paper surface. Since the other structure is similar to that of the previous embodiment, the parts corresponding to those in FIG. 2 are designated by the same reference numerals.

Since this embodiment is constructed as described above, when the tandem cylinder 50 is operated, the bracket 5
The shield member 27 can be positioned at the hooking position P1, the winding position P2, and the lead wire cutting position P3 via 4 respectively. Then, when the shield member 27 is in the hooking position P1 and is in the state shown in FIG.
When 5 is moved in a direction orthogonal to the paper surface by a cylinder (not shown), the shield member 27 is rotated to the rotational position similar to that of FIGS. 1B and 1C of the previous embodiment.

In the above embodiment, in order to simplify the description, the gear portion 27d formed on the outer peripheral portion of the shield member 27.
In the above, the configuration example in which the rack teeth 65a of the rack 65 are directly meshed with each other has been described. However, the gear member is keyed to the outer peripheral portion of the shield member 27, moves in the rotational direction, and is free to move in the straight direction. The shield member 27 and the rack 65 may be meshed with each other via a member. According to this embodiment, the shield member 27 can be rotated with a smaller number of components than the previous embodiment, and its rotation angle can also be easily changed by changing the movement amount of the rack 65. .

In each of the above embodiments, the case where the present invention is applied to the double drive winding device has been described. However, the present invention is not limited to this, and any other armature winding device may be hindered. Can be applied without.

[0044]

As described above, in the armature winding device according to the present invention, the hooking means is composed of a single shield member, so that the structure is simplified and at the time of winding. There is nothing that obstructs the flow of the wire, and it is possible to increase the number of windings and thereby the output by bringing the windings close to the aligned windings.

If the linear position for positioning the shield member is a hooking position for covering the entire commutator, a winding position for covering most of the commutator up to the base of the tongue, and a lead wire cutting position for exposing the entire commutator, the hooking is performed. At the position, hooking can be performed only on the required tongue, at the winding position, the winding space can be maximized, and at the lead wire cutting position, a space for the cutter can be secured.

Further, if the rotating position of the shield member is such that the required tongue is exposed and the required tongue is covered, by rotating the shield member after hooking, the lead wire is extruded and the connecting portion is firmly fixed. In addition, stable hooking is possible, and at the position where the shield member is rotated by a predetermined angle, the opening becomes a position where it does not interfere with the winding, and stable winding is possible.

Further, by linearly driving the shield member by the tandem cylinder, it is possible to perform positioning at a predetermined multi-stage linear position with a simple mechanism. Furthermore,
By rotating the shield member around the axis with the link mechanism, it is possible to perform reliable rotational positioning at an accurate rotation position, and when rotating around the axis with the rack and pinion mechanism, it is possible to shield with a very simple mechanism. The member can be rotated, and the rotation angle of the shield member can be freely set by changing the movement amount of the rack.

[Brief description of drawings]

FIG. 1 is an operation explanatory view showing an embodiment of the present invention.

FIG. 2 is an operation explanatory view showing a multistage linear positioning mechanism of the shield member.

FIG. 3 is a front view showing a rotary positioning mechanism of the shield member.

FIG. 4 is an explanatory view showing an operating state of a shield member in another embodiment of the present invention.

FIG. 5 is a side view of a conventional winding device for an armature.

FIG. 6 is a front view of the same.

FIG. 7 is a sectional view showing the collet device.

FIG. 8 is an explanatory diagram showing a movement state of the gripper device.

FIG. 9 is an explanatory diagram showing an operating state of the hooking device.

[Explanation of symbols]

 1: Wire 10: Armature 12: Core 13: Commutator 13a: Tongue 20: Collet device 27: Shield member 32: Winding chuck 33: Former 34: Flyer 40: Gripper device 41: Gripper 43: Lifting device 50: Tandem cylinder 51: 1st cylinder 52: 2nd cylinder 53: Stopper 54: Bracket 60: Cylinder 62: Bell crank 64: Link 65: Rack

Claims (6)

[Claims] 1. A winding means for winding a wire supplied from a rotating flyer around an armature core to form a plurality of coils, and hooking means for connecting a lead wire of each coil to a predetermined tongue of a commutator. In the armature winding device, the hooking means includes a single shield member that has an opening that surrounds the commutator and exposes only a required tongue, and moves the shield member in the axial direction. An armature winding device comprising: multi-stage linear positioning means for positioning at a predetermined linear position; and rotary positioning means for rotating the shield member around an axis to position at a predetermined rotational position. 2. The predetermined linear position is a hooking position that covers the entire commutator, a winding position that covers most of the commutator up to the base of the tongue, and a lead wire cutting position that exposes the entire commutator. An armature winding device according to claim 1. 3. The armature winding device according to claim 1, wherein the predetermined rotation positions are a position where a required tongue of the commutator is exposed and a position where the required tongue is covered. 4. The armature winding device according to claim 1, wherein the multistage linear positioning means comprises a tandem cylinder that drives the shield member in the axial direction. 5. The armature winding device according to claim 1, wherein the rotary positioning means comprises a link mechanism for rotating the shield member around the axis by a predetermined angle. 6. The armature winding device according to claim 1, wherein the rotary positioning means comprises a rack and pinion mechanism for rotating the shield member around the axis by a predetermined angle.