JPH0572182B2 - - Google Patents

Description

TECHNICAL FIELD The present invention relates to a stator winding device for winding a stator of a motor.

"Prior Art and its Problems" A stator used in a fan motor or the like has internal teeth that protrude inside, and windings are wound around the outer periphery of the internal teeth. Various devices for winding wires on the stator are known, and generally, a guide jig called a former is inserted into the stator, and a needle shaft is used to partially rotate and reciprocate while discharging wire from its tip. The wire is then wound around the guide jig, and the wire is guided by the guide jig while being wound around the internal teeth protruding inside the stator.

However, in such conventional winding devices, in most cases, the guide jig was attached to the stator manually, resulting in poor work efficiency.

Also, for example, Jitko No. 48-17521, Jitko No. 57-
As shown in No. 28544, it is also known that the guide jig is divided into two parts. These guide jigs connect the two members by inserting a pin protruding from one member into a hole formed in the other member.

However, as the stator becomes smaller, such as in a computer fan motor, the thickness of the part inserted into the stator must be made as thin as possible. Because it becomes thinner,
There was a risk that the wire might break during winding work. Also,
Since the structure for attaching the guide jig to the stator is complicated, it has been difficult to automate the attachment of the guide jig to the stator.

[Object of the Invention] An object of the present invention is to provide a stator winding device that can automatically attach a guide jig to a stator with a relatively simple structure.

"Structure of the Invention" In order to achieve the above object, a stator winding device according to the present invention includes a guide jig that is detachably attached to a stator, and a winding device that winds a wire on the stator via this guide jig. In the stator winding device, the guide jig is divided into a male member having an insertion piece and a female member having a groove into which the insertion piece fits, and the guide jig is divided into a male member having an insertion piece and a female member having a groove into which the insertion piece fits. The fitting portion is formed to clamp the protruding piece of the insulator for stator insulation that is pre-attached to the end face of the stator, and the dovetail groove that runs in the lateral direction is formed inside the head of the fitting portion. The winding device main body holds the male member and the female member removably through rods that are fitted and inserted from both sides into the dovetail grooves of the male member and the female member. A pair of jig holders are provided, and a drive mechanism is provided for moving at least one of these jig holders to removably engage the male member and the female member. .

Therefore, the male and female members of the guide jig are held in each jig holder, and with the stator in place, at least one of the jig holders is moved to separate the male and female members. It can be fitted to the stator and attached to the stator. During winding, each jig holder is separated from the male and female members so that the winding needle shaft can operate. Furthermore, after the winding is completed, the male member and the female member are held by each jig holder again, at least one of the jig holders is moved again to separate the male member and the female member, and the stator is taken out. I can do it. In addition, in the present invention, the guide jig is divided into a male member and a female member, an insertion piece is formed on the male member, and a groove into which this insertion piece fits is formed on the female member, so that it can be used for small stators. When intended to be applied, sufficient connection strength can be obtained even if the portion inserted into the stator is made thin.

In addition, the fitting parts formed on the male and female members to the stator are formed so as to hold the protruding piece of the insulator that is pre-attached to the end face of the stator, so there is no need to use other auxiliary members. The guide jig can be attached to the stator with a relatively simple structure.

Furthermore, the jig holder holds compatible rods by inserting them from both sides into the dovetail grooves formed inside the heads of the male and female members of the guide jig, so the postures of the male and female members can be kept constant. It can be held firmly while keeping it in place.

Embodiments of the Invention FIG. 1 shows a transport plate on which a stator is mounted and introduced into the main body of a winding device, and a stator that is detachably attached to this plate.

That is, the plate 20 has the stator 1 in the center.
It has a through hole 21 corresponding to the center hole of No. 2, and the through hole 21
The inner periphery of the stator 12 is a mounting portion 22 into which the stator 12 is fitted. A hole 23 is formed in the stator 12, and the mounting portion 2 is inserted into the hole 23.
A pin 24 is provided protruding from the bottom of 2. Also,
Plastic insulators 25, 25 for stator insulation are attached to both end faces of the stator 12. In this case, each insulator 25 includes a seal portion 27 that is inserted into the slot 26 of the stator 12 and serves as an insulating material, and a plurality of protrusions 29 that protrude outward along the inner peripheral shape of the internal teeth 28 of the stator 12. and a presser piece 30 that engages with the outer periphery of the stator 12. Furthermore, pins 31, 31 are provided on both sides of the insulator 25, which is mounted above, in correspondence with the holes 23 of the stator 12, projecting therefrom. Holding metal fittings 32, 32 are provided at two opposing locations on the outer periphery of the mounting portion 22, and each holding metal fitting 32 enters between the pins 31, 31 of the insulator 25 attached to the stator 12.
The stator 12 is elastically held by the spring 33. In addition, pins 31, 3
1 is used in a process after winding is completed, but since it is not directly related to the present invention, its explanation will be omitted. Holding parts 37 for holding the coil ends are provided on both sides of the plate 20. The holding part 37 has a plurality of abacus-shaped balls 34.
are attached by being pressed into contact with each other by an elastic member (not shown), and the end portion of the coil is held between these balls 34. In addition, 35 is after winding is completed,
A stand for soldering and testing.
Reference numeral 36 is a hole for positioning the plate 20 on the winding device main body, which will be described later.

Therefore, the stator 12 is installed on the mounting portion 22 of the plate 20 with the presser metal fitting 32 released by a device not shown, and then, by elastically holding the stator 12 with the presser metal fitting 32, It is detachably attached to the plate 20.
Note that the stator 12 is attached to the mounting portion 22 of the plate 20.
When installing the pin 24 into the hole 23 of the stator 12
to ensure accurate positioning.

2 and 3 show the main body of the winding device.

This winding device main body 61 mainly consists of a base 62
, a support 63 erected from this base 62 in an inverted L shape, and a table 64 on which the plate 20 is installed.
It is made up of. A pair of guide bars 65, 65 are vertically installed on the upper part of the column 63, and the upper ends of the guide bars 65, 65 are connected by a connecting member 66, and are adapted to slide up and down by a cylinder 67. There is. An upper jig holder 68 is attached to the lower ends of the guide bars 65, 65. The upper jig holder 68 has a pair of arms 69,
69, and these arms 69, 69 are connected to a motor 70.
The opening and closing operations are performed via a rack and pinion gear (not shown). Arm 69, 69
Rods 71, 7 are inserted into a guide jig 81 and support the guide jig 81, which will be described later.
1 is formed. Positioning rods 72, 72 are attached to both sides of the upper jig holder 68 so as to hang down therefrom. Positioning rods 72, 72
When the upper jig holder 68 is lowered, the lower end portion is inserted into the holes 36a, 36a of the plate 20 to position the plate 20 on the table 64.
Below the table 64 is a pair of rods 73, 73.
A lower jig holder 80 consisting of the following is arranged. These rods 73, 73 are connected to the cylinder 7, respectively.
4 and 74 for sliding movement in the axial direction. Rods 75, 75, which are inserted into the guide jig 81 in the same way as the upper jig holder 68, are formed at the tip of each rod 73, 73. Further, the table 64 is connected to the guide bar 7 by cylinders 76, 76.
7, 77 to move up and down while being guided. In this case, positioning pins 78, 78 are provided protruding from the upper surface of the table 64, and these positioning pins 78, 78 are connected to the holes 36b, 36b of the plate 20.
It is now being inserted into. Further, a needle shaft 79 is installed below the table 64, and this needle shaft 79 winds the stator 12 in a known manner.

A guide jig 81 attached to the stator 12 is shown in FIGS. 4 and 5. As shown in FIGS.

That is, the guide jig 81 is divided into a male member 82 and a female member 83, and an insertion piece 84 of the male member 82 is inserted into a groove 85 of the female member 83. In addition, the insertion piece 82 and the groove part 8
5 is formed along the inner periphery of the stator 12 so that its cross section has an arc shape. A ball 86 urged outward by an internal spring or the like is attached to the inner surface of the groove 85, and a recess 87 into which the ball 86 fits is formed on the outer surface of the insertion piece 84. Therefore, when the insertion piece 84 is inserted into the groove 85, the ball 86 fits into the recess 87 and the male member 82 and female member 83 are integrated. The head 88 of the male member 82 and the head 89 of the female member 83 have gently curved surfaces and protrude outward. Further, at the base of each head 88, 89, there is provided a projection piece 2 of the insulator 25 attached to the stator 12 when assembled into the stator 12.
Fitting portions 90 and 91 are formed to fit in such a manner as to sandwich and hold 9. Then, the head 8 of the male member 82
A dovetail groove 92 running laterally is formed on the inner surface of the head 89 of the female member 83, into which the rods 71, 71 of the upper jig holder 68 described above are inserted. A dovetail groove 93 running in the lateral direction is formed into which the rods 75, 75 of the lower jig holder 80 are inserted. Each rod 71, 75 has a cross-sectional shape that matches the dovetail grooves 92, 93.

Next, the operation of the stator winding device according to the present invention will be explained.

First, the plate 20 to which the stator 12 is attached
is installed on the table 64 of the winding device main body 61 with the mounting surface of the stator 12 facing downward. At that time, the positioning pins 78, 78 on the top surface of the table 64
are inserted into the holes 36b, 36b of the plate 20,
Plate 20 is positioned. At this time, the female member 83 of the guide jig 81 is attached to the lower jig holder 80.
The male member 82 of the guide jig 81 is held by the upper jig holder 68. However, the upper jig holder 68 is waiting upward at that point.

Then, the cylinder 67 of the winding device main body 61 is activated, and the upper jig holder 68 is lowered together with the guide bars 65, 65, and the upper jig holder 68 is inserted into the groove 85 of the female member 83 held by the lower jig holder 80. The insertion piece 84 of the male member 82 held by the tool holder 68 is inserted, and the ball 86 of the female member 83 is inserted.
is fitted into the recess 87 of the male member 82, and the male member 82 and female member 83 are integrated. At that time, the male member 8
Since the fitting portion 90 of No. 2 and the fitting portion 91 of the female member 83 clamp the protrusion 29 of the insulator 25,
Male member 82 and female member 83 are fixed to stator 12. In this state, the arms 69, 69 of the upper jig holder 68 are opened, and the rods 73, 73 of the lower jig holder 80 are opened, and the guide jig 81 is opened.
is in a state where it is independently fixed to the stator 12.

Then, when the needle shaft 79 operates to wind the wire in a known manner, the wire is guided to the outer surface of each head 88, 89 of the guide jig 81, and the wire is wound around the outer circumference of the inner teeth 28 of the stator 12. Ru. In addition,
When the needle shaft 79 starts and ends winding, a wire pulling device and a cutter (not shown) operate in a known manner, and these devices cause the end of the coil to align with the plate 20. It is in contact with each stand 35. Further, after the winding is completed, the ends of the coil can be held between the balls 34 of the holding part 37 by pressing the ends of the coil against the holding part 37 using a device (not shown).
Therefore, the end of the coil can be held at a predetermined location on the plate 20, making it easier to perform subsequent steps such as a continuity test. Further, it is possible to prevent the winding from loosening before the end of the coil is fixed to the terminal in a later step.

When the winding work is completed in this way, the arms 69, 69 of the upper jig holder 68 are closed and the rod 7 is closed.
1 and 71 are inserted into the dovetail groove 92 of the male member 82, and the rods 73 and 73 of the lower jig holder 80 are closed, and the rods 75 and 75 are inserted into the dovetail groove 93 of the female member 83.
(See Figures 3, 4, and 5).
In this state, the cylinder 67 is operated again, the upper jig holder 68 moves upward together with the guide bar 65, and the male member 82 and the female member 83 are vertically separated (see FIG. 2). Furthermore, the cylinders 76, 76 are operated to raise the table 64 and lift the plate 20 to a predetermined height. This plate 20 can be taken out by a transport device (not shown) and transported to the next step.

"Effects of the Invention" As explained above, according to the present invention, the guide jig is divided into a male member and a female member, and the male member and the female member are each detachably held by a jig holder. At least one of the jig holders is moved to fit the male member and the female member, and the fitting portions formed on the male and female members are fitted to the stator, so that the guide jig can be installed easily. This can be done automatically to improve work efficiency and save labor. In addition, since the insertion piece of the male member is fitted into the groove of the female member and integrated,
Since it is applied to a small stator, sufficient strength can be obtained at the connecting portion even if the portion inserted into the stator is made thin.

[Brief explanation of the drawing]

Each figure shows an embodiment of the present invention, and FIG. 1 is a perspective view showing a plate for introducing the stator into the main body of the winding device and a stator attached to this plate, and FIG. FIG. 3 is a front sectional view of the winding device main body, FIG. 3 is a side sectional view of the winding device main body, FIG. 4 is a perspective view showing how the guide jig is attached, and FIG. 5 is a perspective view of the guide jig. In the figure, 12 is a stator, 25 is an insulator, 29 is a protrusion, 61 is a winding device main body, 62 is a base, 63 is a column, 64 is a table, 68 is an upper jig holder, 71, 75 are pins, 79 80 is a needle shaft, 80 is a lower jig holder, 81 is a guide jig, 82 is a male member, 83 is a female member, 84 is an insertion piece, 85 is a groove portion, 90 and 91 are fitting portions, 9
2,93 is a dovetail groove.

Claims (1)

[Scope of Claims] 1. A stator winding device comprising a guide jig 81 that is detachably attached to the stator 12 and a winding device main body 61 that winds the stator 12 via the guide jig 81. The guide jig 12 is divided into a male member 82 having an insertion piece 84 and a female member 83 having a groove 85 into which the insertion piece 84 fits. , fitting portions 90 and 91 formed to clamp the protruding piece 29 of the insulator 25 for stator insulation, which is pre-attached to the end face of the stator 12, and lateral portions formed inside the heads 88 and 89 thereof. Dovetail grooves 92 and 93 running in the direction are respectively provided, and the winding device main body 61 is fitted and inserted into the dovetail grooves 92 and 93 of the male member 82 and the female member 83 from both sides. A pair of jig holders 68 and 80 are provided which detachably hold the male member 82 and the female member 83 via rods 71 and 75, and these jig holders 68 and 8
0 by moving at least one of the male members 82
and a stator winding device characterized by being provided with a drive mechanism that removably engages the female member 83.