JP3432163B2 - Amateur coil forming equipment - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an amateur coil forming device for expanding and expanding both ends of an amateur coil by a predetermined distance.

[0002]

2. Description of the Related Art An example of an armature for a DC motor is shown in FIGS. This is shaft 1
And a commutator 3 externally fitted to one end small diameter portion 1a of the shaft 1, the commutator 3 having an inner cylindrical portion 4 integrated with an insulating member Made of a synthetic resin material 5 and a conductive metal outer cylinder 6, the outer cylinder 6 is divided into a plurality of divided members 6a along the circumferential direction, and an insulating layer 7 is interposed between the divided members 6a. The outer peripheral surface of each core 2 and the riser 6 of each split member 6a.
concave grooves 8 and 9 are formed in b at a predetermined interval α in the circumferential direction,
A large number of amateur coils 10 each having an insulating film and formed of a rectangular copper wire formed in a substantially U shape are fitted into the respective recessed grooves 8 of the core 2 by twos via an insulating sheet 11, and the amateur coils 10 are outwardly directed. Both ends 1 spread apart by a predetermined distance β
Two 0a and 10b are fitted in each groove 9 of the commutator 3, whereby each amateur coil 10 is divided into a plurality of groups 10A to 10D and each of the groups 10A to 10D as shown in FIG. The end portions 10a and 10b of the amateur coil 10 are connected to each other. In FIG. 10, 12 is a fan fitted in the other end small diameter portion 1b of the shaft 1, and 13 is a binding belt.

Conventionally, when assembling an amateur,
Both ends 10a, 10b of the substantially U-shaped amateur coil 10
12 is outwardly spread by a predetermined distance β to be molded into a state shown in FIG. 12, and the molded amateur coil 10 is hit with a hammer to be fitted into each groove 8 of the core 2, and both end portions 10a and 10b thereof are It is hit with a hammer and fitted into each groove 9 of the commutator 3.

[0004]

SUMMARY OF THE INVENTION In the above conventional configuration,
Both ends 10a, 10b of a large number of amateur coils 10 are expanded one by one and molded, and it takes time and time for molding, and the work efficiency is low.

In view of the above-mentioned conventional drawbacks, the present invention has an object to provide an amateur coil forming apparatus capable of efficiently expanding both end portions of a large number of amateur coils to form them efficiently.

[0006]

In order to achieve the above object, the invention according to claim 1 forms a plurality of substantially U-shaped amateur coils mounted on the outer peripheral portion of the core by widening both end portions by a predetermined distance. An inner coil and an outer rotor that are concentrically arranged with each other, a drive mechanism that rotationally drives the inner rotor and the outer rotor, respectively, and the inner rotor and the outer rotor. A core support portion disposed above the body for mounting the core, wherein the inner rotating body and the outer rotating body are circumferentially predetermined at an outer peripheral portion of the inner rotating body and an inner peripheral portion of the outer rotating body. The core support portion has a large number of recessed grooves at intervals, and the core support portion has a large number of support pins radially arranged at a predetermined interval and projecting inward of the annular body. Both ends of each amateur coil The core support is placed on the support pins in a state of being inserted between the support pins, one end of each amateur coil is fitted into the concave groove of the inner rotor, and the other end of each amateur coil is inserted. It is characterized in that both ends of each of the amateur coils are pushed apart by the predetermined angle by being fitted in the concave groove of the outer rotary body and rotating the two rotary bodies in opposite directions by a predetermined angle by the drive mechanism. There is.

According to the above construction, one end portion of each amateur coil mounted on the outer peripheral portion of the core is fitted into the concave groove of the inner rotary body, and the other end portion of each amateur coil is concave groove of the outer rotary body. Then, both ends of each of the amateur coils can be pushed out together to be efficiently formed by simply rotating the two rotating bodies in opposite directions by a predetermined angle. Further, both ends of each amateur coil fitted in the groove of each rotary body are smoothly spread around the support pin as a fulcrum, and at the time of the spreading, both ends of each amateur coil hit the outer peripheral edge of the groove. There is no risk of damage.

According to a second aspect of the present invention, in the first aspect of the present invention, an annular separating plate for separating the concave grooves of the both rotary bodies is interposed between the inner rotary body and the outer rotary body. It is characterized by that.

According to the above construction, since both ends of each amateur coil fitted in the concave grooves of the inner and outer rotating bodies are separated by the annular separating plate, both ends of each amateur coil are prevented from interfering with each other. And can be molded smoothly.

According to a third aspect of the present invention, in the first or second aspect of the invention, the inner rotary member and the outer rotary member are configured to be capable of moving up and down, and when both rotary members are rotated in opposite directions. In addition, both of the rotating bodies are slightly raised by a cam mechanism.

According to the above construction, when both the inner and outer rotating bodies are rotated in opposite directions to push out both end portions of each amateur coil fitted in the groove of each rotating body, at the same time, both end portions thereof are moved. Although it is pulled up, at this time, both rotary bodies are slightly raised by the cam mechanism, so that both ends of each amateur coil can be reliably supported so as not to come out of the concave groove of each rotary body.

According to a fourth aspect of the present invention, in the invention according to any one of the first to third aspects, a coil depressing member for depressing each of the amateur coils is arranged above the annular body so as to be able to move up and down. It is characterized by being.

According to the above construction, the coil pushing member can push down a large number of the amateur coils mounted on the outer peripheral portion of the core to surely fit both end portions of the respective amateur coils into the concave grooves of the inner and outer rotating bodies. it can.

[0014]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. 1 and 2 show an amateur coil forming apparatus according to an embodiment of the present invention, in which a pair of upper and lower forming portions 15 and 16 and a core supporting portion 17 are provided.
And a coil push-down member 18.

As shown in FIGS. 1 and 3, the upper molding portion 15 has a casing 21 that can be raised and lowered along a pair of left and right guide rails 20 fixed to a base frame 19, and a bearing 22 in the casing 21. The outer cylindrical body 23 that is rotatably supported by the outer cylindrical body 23, and an annular outer rotating body 24 that is detachably mounted on the upper end of the outer cylindrical portion 23.
The cylindrical portion 2 is driven by the drive mechanism provided in the above, that is, the drive motor 25, via the worm gear 26 and the worm wheel 27.
3 and the outer rotary body 24 are adapted to rotate in the forward and reverse directions a and b.

As shown in FIG. 1, the lower molding portion 16 includes an inner cylindrical portion 29 rotatably supported by a casing 21 via a bearing 22 and an upper portion loosely fitted in the outer cylindrical portion 23. An inner rotating body 30 is detachably attached to the upper end of the inner cylindrical portion 29 and is concentrically fitted into the outer rotating body 24. Since the configuration other than the above is the same as that of the upper molding portion 15, the same reference numerals are given to the same portions and the description thereof will be omitted.

As shown in FIG. 4, the outer peripheral surface of the outer rotary member 24 and the outer peripheral surface of the inner rotary member 30 have a predetermined circumferential spacing α.
A large number of recessed grooves 31, 32 are formed at the same time, and an annular separation plate 33 for separating the recessed grooves 31, 32 of both rotary bodies 24, 30 from each other is interposed between the rotary bodies 24, 30. There is.

In the above structure, as shown in FIG. 5, one end small-diameter portion 10a of each amateur coil 10 is fitted into the groove 32 of the inner rotary member 30, and the other end 10b of each amateur coil 10 is placed outside the outer rotary member. The outer rotary body 24 is rotated in the direction of arrow a, and the inner rotary body 30 is rotated in the direction of arrow b so that both end portions 10a and 10b of each amateur coil 10 are expanded and formed. In doing so, both ends 10a, 10b of each amateur coil 10 can be smoothly formed so as not to interfere with each other.

As shown in FIGS. 2 and 3, each molding part 1
5 and 16 are provided with a cam mechanism 35, which includes an arcuate cam 35a arranged on a support arm 36 projecting from the base frame 19, the worm wheel 27 of each of the molding portions 15 and 16 to the casing 21. And a cam roller 35b that is rotatably supported by a bracket 37 that extends outwardly through the opening 21a and is in contact with the upper surface of the cam 37.

In the above structure, as described above, the outer rotary body 24 is rotated in the direction of arrow a and the inner rotary body 30 is rotated in the direction of arrow b to push both end portions 10a and 10b of each amateur coil 10. When unfolded, at the same time, both end portions 10a and 10b thereof are pulled up, but at that time, the cam roller 35b is pushed up along the cam 35a, and the two rotating bodies 24 and 30 are slightly raised.
Both ends 10a, 10b of each amateur coil 10 can be reliably supported so as not to come off from the recessed grooves 31, 32 of each rotary body 24, 30.

As shown in FIGS. 6 and 7, the core support portion 17 has an annular frame in which an inner diameter R is set larger than an outer diameter r of the core 2 in an elevating frame 39 which can be elevated and lowered along a guide rail 20. 40 is arranged concentrically with both rotating bodies 24, 30,
A large number of support pins 41 are radially arranged in the annular body 40 with a predetermined interval α, and each of the support pins 41 and the annular body 4 are arranged.
A ring-shaped rotating body 42 rotatably arranged in the position 0 is interlockingly connected by a cam mechanism 43.

The cam mechanism 43 includes the support pins 41.
And a circular arc-shaped cam groove 43b which is formed in the annular rotating body 42 and fits into each cam pin 43a.

In the above structure, as shown in FIG. 8, from the state where each support pin 41 is retracted into the annular body 40, the manual lever 44 protruding from the annular rotary body 42 is gripped to hold the annular rotary body 42. 6 is rotated in the direction of arrow a, the tip end of each support pin 41 can be projected inward from the inner surface of the annular body 40 via the cam mechanism 43, as shown in FIGS. The core 2 is placed on the tip of each support pin 41 to be inserted, and both ends 10a and 10b of each amateur coil 10 are inserted between each support pin 41, and both ends 10a and 10b are rotated both inside and outside the rotating body 24. , 3
Both ends 10a, 10b of the amateur coil 10 are smoothly pushed and spread with the support pin 41 as a fulcrum by fitting the same into the recessed grooves 31, 32 of 0 and rotating both rotary bodies 24, 30 in opposite directions (see FIG. (See 5 phantom lines), there is no possibility that both ends 10a, 10b will hit the outer peripheral edge portions of the recessed grooves 31, 32 and be damaged during the expansion.

In FIG. 7, reference numeral 46 denotes a rotary drive device composed of a pair of upper and lower rodless cylinders 46A and 46B arranged below the manual lever 44.
Movable pins 47a and 47b erected on movable bodies 46a and 46b on 6A and 46B face each other with a manual lever 44 interposed therebetween, and one rodless cylinder 46A is driven from the state shown in FIG. By moving the movable pin 47a in the direction of arrow c, the manual lever 44 is rotated in the direction of arrow b, and from the state shown in FIG. 8, the other rodless cylinder 46B is driven to move the movable pin 47b in the direction of arrow d. By moving, the manual lever 44 is rotated in the arrow a direction.

In FIG. 7, reference numeral 48 denotes a ball screw, which is screwed into a nut 49 fixed to the elevating frame 39. When the ball screw 48 is rotated forward and backward by a drive motor (not shown), the nut 49 is rotated. The annular body 40 is moved up and down via the elevation frame 39.

As shown in FIG. 1, the coil push-down member 18 is formed of a disc having a through hole 50 formed in the center thereof, and an elastic plate 51 made of rubber or the like is attached to the lower surface of the disc. It is raised and lowered by a device (not shown).

According to the above configuration, the coil pushing member 1
A large number of the amateur coils 10 mounted on the outer peripheral portion of the core 2 are pushed down by means of 8, and both end portions 10a and 10b of the respective amateur coils 10 are pushed into the concave grooves 31 of both rotary bodies 24 and 30.
It can be securely fitted into 32.

The procedure for forming the armature coil 10 will be described. As shown in FIG. 9A, the through hole 5 of the support base 52 is formed.
By inserting the small diameter portion 1a of the shaft 1 into the shaft 2a, the core 2 is placed on the support base 52, and a large number of substantially U-shaped amateur coils 10 are inserted into the concave grooves 8 of the core 2.
Next, as shown in FIG. 9B, the core 2 with the amateur coil 10 is lifted from above the support base 52, and the core 2 with the amateur coil 10 is protruded inward from the inner surface of the annular body 40. The armature coil 10 is mounted on the tip end of the armature coil 10, and both ends 10a and 10b of each amateur coil 10 are inserted between the support pins 41 (see FIG. 6). Subsequently, as shown in FIG. 9C, the annular body 40 is lowered, and the coil push-down member 18 is also lowered to move the coil push-down member 1
Each amateur coil 10 is pushed down by 8 and both ends 10a and 10b of each amateur coil 10 are fitted into the concave grooves 31 and 32 of both the inner and outer rotary bodies 24 and 30 (see FIG. 1). In this case, both the inner and outer rotating bodies 24 and 30 are slightly rotated in the forward and reverse directions a and b, whereby the amateur coils 1
Both end portions 10a and 10b of 0 can be easily fitted into the concave grooves 31 and 32. After that, as shown in FIG. 9D, the outer rotor 24 is rotated in the direction of arrow a and the inner rotor 30 is simultaneously rotated in the direction of arrow b so that both ends 10a and 10b of the amateur coil 10 are rotated by a predetermined angle. β (Fig. 1
2) Push it apart. As a result, both end portions 10a and 10b of each amateur coil 10 can be spread together and molded efficiently.

Next, the annular body 40 is moved up so that both end portions 10a and 10b of each amateur coil 10 are recessed into the grooves 31 and 3.
Pull out from 2. At this time, both the inner and outer rotating bodies 24 and 30 are slightly rotated in the forward and reverse directions a and b, so that both ends 10
The a and 10b can be easily pulled out from the concave grooves 31 and 32.

Subsequently, the core 2 is clamped by a hand device (not shown), and the core 2 is pulled up. At this time, each support pin 41 is retracted into the annular body 40 (see FIG. 8).
This prevents the both ends 10a and 10b of the respective amateur coils 10 which are spread out from being caught by the respective support pins 41.

The core 2 pulled up is sent to the next step, and the commutator 3 is fitted to the small diameter portion 1a of the shaft 1 at one end.
Each amateur coil 10 in each groove 9 of the commutator 3
The both ends 10a and 10b of the shaft 1 may be fitted and bound by the binding band 13, and the fan 12 may be fitted to the other end small diameter portion 1b of the shaft 1. As a result, the amateur shown in FIG. 10 can be obtained.

[0032]

According to the invention of claim 1, one end of each amateur coil mounted on the outer peripheral portion of the core is fitted into the concave groove of the inner rotary member, and the other end of each amateur coil is inserted. After fitting the grooves in the outer rotary body and rotating both rotary bodies in opposite directions by a predetermined angle, both ends of each armature coil can be collectively pushed and efficiently molded. Further, since the core is placed on each support pin protruding inward from the annular body so that both ends of each armature coil are inserted between the support pins, both the inner and outer rotating bodies are rotated in opposite directions. Thereby, both ends of each amateur coil fitted in the groove of each rotating body are smoothly spread around the support pin as a fulcrum, and at the time of the spreading, both ends of each amateur coil are outside the groove. There is no risk of damage to the peripheral edge.

According to the second aspect of the present invention, since both end portions of each amateur coil fitted in the concave grooves of both the inner and outer rotating bodies are separated by the annular separating plate, both end portions of each amateur coil are mutually separated. It can be molded smoothly without causing interference.

According to the third aspect of the present invention, when both the inner and outer rotating bodies are rotated in opposite directions to push out both ends of each amateur coil fitted in the concave groove of each rotating body, at the same time, Both ends of the armature coil are pulled up, but at this time, both rotary bodies are slightly raised by the cam mechanism, so that both end portions of each amateur coil are securely supported so as not to come out from the groove of each rotary body. be able to.

According to the fourth aspect of the present invention, the armature coils mounted on the outer peripheral portion of the core are pushed down by the coil pushing member so that both end portions of each armature coil are securely fitted into the concave grooves of the inner and outer rotating bodies. be able to.

[Brief description of drawings]

FIG. 1 is a vertical cross-sectional view showing an amateur coil forming device according to an embodiment of the present invention.

FIG. 2 is a side view of the same.

FIG. 3 is a horizontal sectional view of the upper molding part.

FIG. 4 is a plan view of the upper molding section.

FIG. 5 is an exploded perspective view of the main part.

FIG. 6 is a vertical cross-sectional view of the support pin tip portion of the core support portion in a protruding state.

FIG. 7 is a plan view of the same.

FIG. 8 is a plan view of the support pin tip portion of the core support portion in a retracted state.

9 (a) to 9 (d) are schematic views showing a procedure for forming an amateur coil.

FIG. 10 is a half sectional side view of the armature.

11 is a right half view taken along the line AA of FIG. 10, and a left half view taken along the line BB of FIG.

FIG. 12 is an exploded perspective view of the main part.

FIG. 13 is a schematic development view showing a connection state of armature coils.

[Explanation of symbols]

2 cores 10 amateur coils 10a One end of armature coil 10b The other end of the armature coil 18 Coil pushing member 24 Outer rotating body 25 Drive motor (drive mechanism) 30 inner rotating body 31 Outer rotating body groove 32 Concave groove on the inner rotating body 33 Annular separation plate 35 Cam mechanism 40 ring 41 Support pin 43 Cam mechanism

Claims (4)

(57) [Claims] 1. An amateur coil forming device for forming a plurality of substantially U-shaped amateur coils mounted on an outer peripheral portion of a core by expanding both end portions of the core coil by a predetermined distance, the inner rotating members being concentrically arranged with each other. Body and outer rotating body, drive mechanisms for rotating and driving the inner rotating body and the outer rotating body, respectively, and a core support portion arranged above the inner rotating body and the outer rotating body for mounting the core. The inner rotating body and the outer rotating body have a large number of grooves at predetermined intervals in the circumferential direction on the outer peripheral portion of the inner rotating body and the inner peripheral portion of the outer rotating body, and the core support portion is The annular body has a large number of support pins that are radially arranged at predetermined intervals and project inwardly of the annular body, and the core is provided between the support pins of the core support section at both ends of each amateur coil. Mounted on the support pin with it inserted And place one end of each amateur coil in the groove of the inner rotary body and the other end of each amateur coil in the groove of the outer rotor, and the drive mechanism connects the two rotary bodies. An amateur coil forming device characterized in that both ends of each amateur coil are expanded by the above predetermined angle by rotating them in opposite directions by a predetermined angle. 2. Between the inner rotating body and the outer rotating body,
The amateur coil forming device according to claim 1, wherein an annular separating plate that separates the concave grooves of the both rotating bodies is interposed. 3. The inner rotating body and the outer rotating body are configured to be able to move up and down, and when the both rotating bodies are rotated in opposite directions, the both rotating bodies are slightly raised by a cam mechanism. The amateur coil forming device according to claim 1 or 2, wherein. 4. The armature coil molding according to claim 1, wherein a coil pressing member for pressing down each of the amateur coils is arranged above the annular body so as to be capable of moving up and down. apparatus.