JPH0715327Y2 - Reel structure of single coil manufacturing equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to an apparatus for manufacturing a single coil for constructing an armature of a flat motor, and more specifically to manufacturing an annular single coil from a coil wire. Related to the structure of the reel used.

(Prior Art) Recently, a flat ironless armature motor is used as a motor for driving a blower fan of an automobile air conditioner, a cooling fan of a radiator, and the like. This motor is commonly called a flat motor, and since the amateur has no iron core, it has many advantages such as a small moment of inertia of the amateur, no iron loss, efficiency, and good commutation. Has been done.

In this motor, as shown in FIG. 8, a large number of flat single coils 2 are arranged around the commutator 1, the legs 2b and 2c of the single coil 2 are connected to the commutator 1, and the single coils 2 are bonded to each other. Alternatively, the whole body is molded with resin to form the amateur A. An apparatus for forming such a single coil 2 has been conventionally shown in FIGS. 9 and 10 (JP-A-57-22,34).
For example, the one shown in Japanese Patent No. 4) is used.

This apparatus has a single coil molding die section 3, a coil wire supply section 5 that supplies a coil wire C, and a drive section 6 that drives the coil wire supply section 5, and the single coil molding die section 3 is fixed. In this state, the coil wire supply unit 5 is rotated a plurality of times to wind the coil wires C in a stack on the same plane to manufacture the single coil 2.

Particularly, in the single coil molding die part 3, as shown in detail in FIG. 10, a pair of boards 7 and 7 are installed so as to face each other, and one coil wire C can pass between the boards 7 and 7. A fan-shaped boss portion 8 is formed in the center to form a gap and a core for winding the coil wire C.
The coil wire C is wound in the state of being clamped and fixed by the above to form the single coil 2.

(Problems to be solved by the invention) However, in order to manufacture one motor, it is necessary to manufacture a large number of single coils 2. However, in the above-mentioned device, mounting and dismounting of the board 7 is troublesome. However, since manual work is required between the time of supplying the coil wire C and the finishing of the single coil 2, it is difficult to manufacture the single coil, and it is difficult to mass-produce the single coil with a predetermined accuracy.

Therefore, recently, as shown in FIG. 11, a holding member a which is attachable and detachable by a ball lock mechanism B is provided on the head of a jig J having an inverted T-shaped cross section. J
A gap for one coil wire is formed between the coil wire C and the coil wire C, the coil wire C is wound here, and then the pressing member a is removed to form the above-mentioned single coil 2 (special feature). Kaisho
59-198,855). As shown in FIG. 12, there is also one in which the jigs J are arranged in multiple rows and columns on the moving table T so that a plurality of single coils can be manufactured at once. However, even in this case, when manufacturing the single coil 2, it is necessary to perform a troublesome winding work of the coil wire C on each jig, and moreover, a large place and a large number of expensive jigs are required. There is a problem that becomes.

The present invention was made by focusing on the above-mentioned problems,
The purpose is to manufacture a single coil that does not require an expensive jig or a large space, can smoothly fit both molds, and can wind the coil wire and take out the single coil after molding. It is to provide a reel structure for the device.

(Means for Solving the Problem) In order to achieve the above-mentioned object, the present invention provides one mold which is fixedly mounted and has a flat mold surface, and is provided so as to be closely spaced from the one mold. A mold member elastically attached to a fixed holder via a spring, and a fan-shaped boss portion slightly protruding from the mold surface is formed at the center of the flat mold surface of the mold member. And a coil wire coated with a heat-fusible resin on the outermost periphery from the gap formed between the two mold surfaces when they are closely contacted so that the mold surfaces face each other. Then, a reel of a single coil manufacturing apparatus, which is configured to manufacture a flat fan-shaped annular single coil by winding a plurality of times around the boss portion and heat-bonding the coil wires to each other by a heating means. , Within the range in which the boss portion abuts on the one mold. At least 2
More than one locating pin is implanted, and the other mold is provided with through holes into which these locating pins are fitted, so that the locating pins can be displaced slightly vertically and horizontally when these locating pins and through holes are fitted. In the reel structure of the single coil manufacturing apparatus, the base of the positioning pin is supported by one of the molds via an elastic body such as an O-ring.

In the other mold, it is preferable to provide a take-out pin near the boss, which projects from the mold surface when the mold member is displaced by a predetermined amount against the spring and removes the single coil around the boss from the boss.

It is preferable that the tip end of the positioning pin is cut off in a tapered shape.

In both of the above-mentioned molds, the gap between the mold faces on the small width end side of the fan-shaped boss portion is a gap of about the diameter of the coil wire, and the gap on the large width end side is a gap larger than the diameter of the coil wire. It is preferable.

(Operation) Since a coil wire may be wound around the pair of molds that form a single coil of a flat motor in a united state, a single coil can be formed without requiring a large space, Further, since the positioning pin can be displaced in the vertical and horizontal directions to some extent, the positioning pin and the through hole can be smoothly fitted to each other at the time of molding, and the two molds can be united, so that the mold fitting can be smoothly and smoothly performed. Then, after winding the coil wire between both molds, the thermosetting resin is hardened by heat to bring the coil wires into close contact with each other. The take-out pin projects and the single coil can be easily removed from the boss.

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

FIG. 1 is a partially cutaway front view showing an embodiment of the present invention.

First, the single coil manufacturing apparatus 10 will be outlined. A winding frame 13 composed of a pair of upper and lower molds 11 and 12 for molding a single coil, a clamp member 14 for clamping one end of a coil wire C, and a coil wire C.
Coil wire winding section having a flyer 15 for winding the
16 and peeling unit for peeling the end of the coil wire C for a predetermined length
17, a cutter 18 for cutting the coil wire C, and a single coil 2
And a molding unit 19 for forming the leg portions 2b, 2c protruding from the annular portion 2a into a predetermined shape, and the coil wire winding portion 16 is held by a support base 21 provided on a base 20. The lower die 12 is installed on the wire winding part 16.

Further, the peeling unit 17 is a second movable base that linearly reciprocates on a first movable base 22 that moves up and down with respect to the base 20.
Its main part is attached to 23, and a pair of so-called robot arms hanging in the immediate vicinity of the upper die 11 form both legs 2b 2c protruding from the annular part 2a of the single coil 2.

The above configuration will be described in more detail.

FIG. 2 is a sectional view showing the reel portion.
Reference numeral 13 denotes a lower die 12 that is fixedly mounted and has a flat die surface 31a, and a die that is elastically attached via a spring 28 to a holder 26 that is provided so as to be closely spaced from the lower die 12. And an upper mold 11 having a member 25. This upper mold
A fan-shaped boss portion 8 is projected at the center of 11, and a portion of the coil wire C having a substantially diameter is formed between the upper die surface 24a and the lower die surface 31a of the boss portion 8 on the side of the narrow width 8a. A gap S ₁ is formed to some extent, and the coil wire C is provided between the left mold face 24b and the mold face 31a on the side of the large width end 8b.
A gap S _{2 that} is larger than the diameter of is formed. When the coil wire C is wound, the coil wires C are not aligned and are stacked on the side of the gap S ₂ so that the width of the outer side a ₁ (see FIG. 3) of the single coil annular portion 2a is reduced. That is, since the gap S between the mold surfaces 24a, 24b, 31a other than the boss portion 8 is made different depending on the place, when the coil wire C is wound, the coil wire C is in a laminated state in the larger gap. Therefore, the coil wire C is aligned in the smaller gap. Therefore, the fan-shaped single coil 2 is the outer side of the single coil annular portion 2a.
The width of a ₁ becomes smaller, and the outer diameter of the armature A when the armature A is connected to the commutator 1 can be made smaller.

As shown in FIG. 2, the upper die 11 is supported by an arm 27 which vertically extends a die member 25 having the boss portion 8 and the like at appropriate positions on the outer peripheral surface of a holder 26, and is directed downward by a coil spring 28. Have been punished. As a result, the upper die 11 can be slightly displaced not only in the vertical direction but also in the radial direction (horizontal direction in the figure), and two large and small through holes 29a, 29b provided in the die member 25 are provided.
Two locating pins 30a, 30 to be described later, which protrude from the lower mold 12.
It fits smoothly with b and can be reliably positioned at a predetermined position.

On the other hand, the lower mold 12 has a mold member 31 having a hollow inside, and a support shaft 32 is mounted in the mold member 31. The upper end surface of the support shaft 32 supports the positioning pins 30a and 30b while being in contact with the lower surfaces of the two positioning pins 30a and 30b. That is, the positioning pins 30a and 30b are provided with O-rings 33 at the corners of the flange portion f and the main body p so that they can be displaced vertically and horizontally.
Are attached so that the O-rings 33 come into contact with the hollow corners of the mold member 31. By doing so, the positioning pins 30a, 30b can be displaced vertically and horizontally by utilizing the elasticity of the O-ring 33, and the positioning pins 30a, 30b and the through holes 29a, 29b can be displaced.
The concave-convex fitting with and is smoothly performed, and the positioning of both molds 11 and 12 is ensured.

The small diameter portion 32a provided below the support shaft 32 is inserted into the rotary drum 34 of the coil wire winding portion 16 and is supported by the bearing 35. As shown in FIG. 1, the rotary drum 34 has a base 20.
Belt 36 and rotating shaft by a motor M provided below
It is designed to be rotated via 37 etc. and can be rotated at all times, but both molds 11 and 12 are in close contact with each other and the positioning pins 30a and 30b
When the through holes 29a and 29b are fitted to each other, the upper mold 11 restricts the rotation.

Further, the lower mold 12 has a flat portion 38 formed by notching the side portion in a concave shape, and a fourth portion is provided at a side end of the flat portion 38.
As shown in the figure, a clamp member 14 for clamping the starting end side of the coil wire C, an operation mechanism 39 for opening and closing the clamp member 14 and the like are attached. The clamp member 14 includes a fixed claw 14a having a recess 40 into which the coil wire C fits, and a pin 41.
Oscillate about the coil wire C in cooperation with the fixed claw 14a.
And a movable claw 14b that holds it. Further, the actuating mechanism 39 is configured such that the roller 42 attached to the end of the movable claw 14b is pressed by the pressure rod, and the pressure rod 43
When is operated, the movable claw 14b swings around the pin 41 to clamp the coil wire C. In FIG. 4, "44" is a concave portion, and "45" is a pin, which cooperate to position both clamp members 14. Also a clamp member
A spring member 46 is coaxially attached to the pin 41 of 14 so that the movable claw 14b always springs outward. In the vicinity of the clamp member 14, as will be described later, a leaf spring member for removing the U-shaped waste material C ₁ (see FIG. 3) generated when the coil wire C is cut off by its elasticity. 47 is always provided so as to be inclined outward (see FIG. 2).

The coil wire winding portion 16 is provided with a flyer 15 via an arm 48 fixed to the rotary drum 34 as shown in FIGS. 1 and 2, and a hollow rotary shaft 37 is passed through the flyer 15. The coil wire C is guided. The top of the flyer 15 is located on the same plane as the mold surface 31a of the lower mold 12, and the coil wire C is rotated by the rotation of the flyer 15.
Is wound around the boss portion 8.

As shown in FIGS. 1 and 5, the peeling unit 17 includes a pair of peeling claws 50 that face each other, a gripping mechanism 51 that causes the peeling claw 50 to grip the coil wire C, and a gripping mechanism. An operating mechanism 52 for opening and closing 51, the peeling claw 50,
With the peeling claw 50 gripping the coil wire C while moving the entire gripping mechanism 51 and actuating mechanism 52 in the front-rear direction, a part of the core wire C of the coil wire C shown in FIG. A peeling mechanism 53 for peeling an electrical insulating layer m ₁ such as enamel and a resin m ₂ capable of heat fusion.

As shown in FIGS. 6 and 7, the peeling claw 50 has a pair of ceramic chips 50a facing each other and attached to the tip of a shank 50b. In the portion 54, a part of the coating layer m and the core wire C ₁ is scraped off.

The gripping mechanism 51 extends the rear end of the shank 50b and is pin-connected to the link member 55 to form a parallel link mechanism as a whole. The link member 55 and the operating mechanism 52 are connected and the operating mechanism 52 is connected. The second movable base for supporting
A support plate 56 is projected from 23, and a pin 57 provided at the intersection of the shank 50b is fixed to the support plate 56.

Here, the actuating mechanism 52 is a cylinder device attached to the second movable base 23, and a stroke adjusting mechanism 58 is provided at the end of the operating mechanism 52. By adjusting the stroke adjusting mechanism 58 with a screw, the peeling claw 50 is removed. The coil C is prevented from unnecessarily cutting into it.

The peeling mechanism 53 is the second movable base of the gripping mechanism 51.
23 is supported by a support plate 59 (see FIG. 1), a cylinder device 60 is attached to the support plate 59, and an end portion of a piston rod 61 of the cylinder device 60 is fixed to the first movable base 22. By sending air or the like into the cylinder device 60, the cylinder device 60 moves to the second movable base 23.
It is configured to slide back and forth along the guide bar 62 along with the above.

The first movable base 22 is supported by jig cylinders 63, 64 and the like provided between the first movable base 22 and the base 20, and the jig cylinders 63, 64 are provided with a pair of cylinders back to back, and a mating surface portion thereof. Is supported by a support plate 65, and the pair of jig cylinders 63, 64 operate independently to displace the first movable base 22 along the support rods 66, 66 in two vertical directions. . A support rod 66 is inserted into one end of the support plate 65, which serves as a detent for the jig cylinders 63 and 64.

Next, the operation will be described.

First, the coil wire C is sandwiched between the fixed claw 14a and the movable claw 14b of the flamp member 14 through the rotary shaft 37 and the flyer 15.

Then, the upper die 11 is lowered, and the pins 30a and 30b of the lower die 12 and the through holes 29
Fit a and 29b. These pins 30a, 30b and through holes 29a, 29b
When the lower die 12 is supported by the rotary drum 34 through the bearing 35, the lower die 12 is fixed in position and the narrow end of the boss portion 8 is engaged.
8a is positioned so as to be close to the flat portion 38.

Next, the motor M is started, the flyer 15 is rotated, and the coil wire C is wound around the boss portion 8 a plurality of times. In this case, the gap S ₁ on the side of the small width end 8a of the boss portion 8 is approximately the diameter of the coil wire C, but the gap S ₂ on the side of the large width end 8b is larger than the gap S ₁ , so that the single coil The outer piece a ₁ of the annular portion 2a is in a state in which the coils are laminated in a layered cross section. Further, both side sides a ₂ and the inner side a ₃ (see FIG. 3) of the annular portion 2a become the single coil annular portion 2a in which the coil wires C are aligned in the same plane.

After the predetermined number of times of winding, the rotation of the flyer 15 is stopped, and then the molding process is performed. That is, the leg portion 2b of the single coil is formed, cut by the cutter 18, and the leg portion of the coil wire is peeled off.

When a current is applied to the single coil by the molding unit 19, the resin m ₂ which is the outermost coating of the coil wire C and which can be heat-sealed.
Can be heated, and the coil wires C are thermally fused to each other.

The single coil 2 formed in this way rises together with the upper die 11 and the forming unit 19, moves to another station, for example, a turntable (not shown) on which a commutator is placed, and descends. . When the upper die 11 comes into contact with the turntable, the coil spring 28 bends and the die member
25 rises slightly along arm 27 so holder 26
The pin P attached to the upper mold 11 projects from the mold member 25, and the single coil 2 is removed from the upper mold 11 by the pin P.

As described above, according to the present invention, the upper and lower molds 11 and 12 can be smoothly combined by fitting the pins 30a and 30b and the through holes 29a and 29b, and this combination forms a portion around which the coil wire is wound. Therefore, even if a large number of single coils are required to manufacture one motor, an expensive jig and a large space are not required, and winding of the coil wire and formation of the single coil after molding can be performed. It is possible to easily and smoothly take out the work.

(Effect of the Invention) As described above, according to the present invention, the coil wire may be wound around the pair of molds forming the single coil of the flat motor in a state of being fitted together. A single coil can be formed without requiring a large space. In particular, since an expensive jig is not required and the jigs are not aligned and work is performed, a large space is not required and productivity is improved. Also,
Since the positioning pin can be displaced in the vertical and horizontal directions to some extent, the positioning pin and the through hole can be smoothly fitted to each other when the single coil is formed, and the two molds can be united, so that the mold fitting can be smoothly and smoothly performed. When removing the single coil from the mold after forming the single coil, if the mold is retracted by some means,
The pin projects from the mold, and the single coil can be easily removed from the boss.

[Brief description of drawings]

FIG. 1 is a partially cutaway front view showing an embodiment of the present invention, FIG. 2 is a sectional view of a reel part of FIG. 1, and FIG.
FIG. 4 is a schematic side view of the clamp member, FIG. 5 is a plan view of a peeling claw portion, and FIG. 6 is a cross-sectional explanatory view showing a peeled state of a coil wire. FIG. 8 is a sectional view perpendicular to the axis showing the peeled state of the coil, FIG. 8 is a perspective view showing a conventional armature, FIG. 9 is a schematic view of a conventional single coil manufacturing apparatus, and FIG. An exploded perspective view showing the board,
FIG. 11 is a sectional view showing a jig used in another conventional single coil manufacturing apparatus, and FIG. 12 is a schematic plan view showing a state where a single coil is manufactured using the jig. . 2 ... Single coil, 2a ... Annular part, 2b, 2c ... Leg part, 8 ...
… Boss part, 8a …… Small width end of boss part, 8b …… Large width end of boss part, 11,12 …… A pair of molds, 13 …… Reel, 14 …… Clamping member, 15 …… Flyer, 17 …… Peeling unit, 18 …… Cutter, 19 …… Molding unit, 24a, 24b, 31a …… Mold surface, 2
5 …… Mold member, 26 …… Holder, 29a, 29b …… Through hole, 28…
… Spring, 30a, 30b …… Positioning pin, 33 …… Elastic body, C
…… Coil wire, m …… Multilayer, P …… Pickup pin, S ・ ・ ・
… Gap, S ₁ …… small gap, S ₂ …… large gap.

Continuation of the front page (72) Creator Kazuo Tada 8 Sakaemachi, Sano City, Tochigi Prefecture Japan Radiator Co., Ltd. Sano Factory (56) References Japanese Patent Publication No. 57-27658 (JP, B2)

Claims (4)

[Scope of utility model registration request] 1. A flat mold surface (31) fixedly mounted and fixed.
a) having one mold (12) and a mold member (elastically attached via a spring (28) to a holder (26) provided so as to be close to and away from the one mold (12). 25), and a fan-shaped boss portion (8) slightly protruding from the mold surface (24a, 24b) is formed in the center of the flat mold surface (24a, 24b) of the mold member (25). When the two molds (11, 12) are closely contacted so that the mold faces (24a, 24b, 31a) face each other, the mold faces (24a, 24b, 31a)
A coil wire (C) coated with a heat-fusible resin is inserted into the outermost circumference from a gap (S) formed therebetween, and the coil wire (C) is wound around the boss portion (8) a plurality of times and the coil wire ( C)
A reel of a single-coil manufacturing device for manufacturing a flat fan-shaped annular single coil (2) by heat-sealing each other by heating means, wherein the one mold (12) has the boss. At least two positioning pins (30a, 30) within the range where the portion (8) abuts
b) is planted, and the other mold (11) is provided with through holes (29a, 29b) into which these positioning pins (30a, 30b) are fitted,
When the positioning pins (30a, 30b) and the through holes (29a, 29b) are fitted together, the positioning pins (30a, 30b) are O-ringed so that the positioning pins (30a, 30b) can be displaced slightly in the vertical and horizontal directions. A reel structure for a single-coil manufacturing apparatus, which is supported by one mold (12) via an elastic body (33) such as. 2. The other mold (11) has the boss (8).
When the die member (25) is displaced in the vicinity by a predetermined amount against the spring (28), the die member (25) projects from the die surface (24a), and the single coil (2) around the boss portion (8) is removed from the boss portion (8). The reel structure of the single coil manufacturing device according to claim 1, wherein a take-out pin (P) for removing is provided. 3. The winding structure for a single coil manufacturing apparatus according to claim 1 or 2, wherein the positioning pins (30a, 30b) have their tips cut off in a tapered shape. . 4. The both molds (11, 12) are arranged such that the clearance between the mold surfaces on the side of the narrow width end (8a) of the fan-shaped boss portion (8) is about the diameter of the coil wire (C). (S ₁ ) and the gap on the large width end (8b) side is larger than the diameter of the coil wire (C) (S ₂ )
The winding frame structure of the single coil manufacturing device according to any one of claims 1 to 3, wherein the utility model is registered.