JPH0591177U - Winding guide for rotating electric machine - Google Patents

Abstract

(57) [Summary] [Object] An object of the present invention is to provide a winding guide of a rotary electric machine that can easily perform end treatment of a coil. A winding guide according to the present invention is configured to rotate a supply nozzle while supplying a coil wire from a supply nozzle to a wound portion of a stator or a rotor, and to rotate a plurality of winding grooves on an outer periphery of the wound portion. In the winding guide for guiding the coil wire into the winding groove when winding the coil wire over the two, the guide body has a guide portion for guiding the coil wire from the circumferential side of the iron core into the winding groove. And a posture aligning portion that aligns the postures of the coil end portions on the end face side in the axial direction of the iron core, and the posture aligning portion is displaced or deformed by the wound coil wire, and regulates the radial outside position of the coil wire. It is also characterized in that the coil end positions are aligned.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a winding guide of a rotary electric machine, and more particularly to a guide that can easily perform an end treatment of a coil.

[0002]

[Prior Art]

 When winding a stator or rotor of an electric motor or the like, a winding guide for guiding a coil wire into a winding groove is generally used (Japanese Patent Publication No. 57-19661 and Japanese Patent Laid-Open No. 2-11245). (See gazette, etc.). For example, as shown in FIG. 5, the iron core 2 is attached to the winding machine, the winding guide 1 is brought into close contact with the side face of the iron core 2, and the supply nozzle 3 is rotated (see arrow B in FIG. 5). The coil wire 4 is supplied to wind the coil between the two slots 20, and when the coil winding at that portion is completed, the iron core 2 is rotated by a predetermined angle, and the coil wire 4 is wound between the next slots 20. I did it, and in this way, I wound the coil wire one after another. At that time, in the winding guide 1, the coil wire 4 is guided toward the inner part of the slot 20 by the guide pieces 11 fixed to the upper end surface and the lower end surface of the guide body 10, and the coil wire 4 is guided by the side surface of the guide body 10. Was guided from the circumferential side of the iron core into the slot 20.

[0003]

[Problems to be solved by the device]

 However, the conventional winding guide has a problem that the workability of the winding is very poor and the yield of products is low. That is, when the coil wire 4 is wound while applying a large tension, the coil wire 4 wraps around the lower side of the fixed guide piece 11 and is positioned near the outer peripheral surface of the iron core 2 as shown in FIG. 5 (b). As a result, not only is it extremely difficult to wind the coil, but it is necessary to stop the work and push the coil wire 4 into the slot 20 each time the coil wire 4 on the upper side of the coil winds out of the slot 20. there were. Further, the coil was easily damaged when the iron core 2 was sized and ground. Therefore, if the coil wire 4 is wound without being pulled so much, the dimensions of the coil wire 4 on both end surfaces of the iron core 2, that is, the coil wire 4 of the coil end portion 40 are likely to be disjointed. As a result, it is necessary to bind the coil end portion 40 with a string or the like after winding, and the binding work is very complicated because it is not suitable for automation. Moreover, if the long coil wire 4 is exposed at the end of the iron core 2, the coil end 40 is easily damaged, and if the varnish treatment is performed to harden the coil wire 4, damage is particularly likely to occur. In view of the above problems, it is an object of the present invention to provide a winding guide for a rotating electric machine that can perform a predetermined winding easily and reliably.

[0004]

[Means for Solving the Problems]

 Therefore, the winding guide of the rotating electric machine according to the present invention rotates the supply nozzle while supplying the coil wire from the supply nozzle to the wound portion of the stator or the rotor, thereby forming a plurality of winding grooves on the outer periphery of the wound portion. A winding guide that guides the coil wire into the winding groove when winding the coil wire over two of them. A guide body that guides the coil wire into the winding groove from the circumference side of the wound portion in the guide body. And a posture aligning portion that aligns the coil end postures on the iron core axial end face side, and the posture aligning portion is displaced or deformed by the wound coil wire, and the outer position in the radial direction of the coil wire is set. The point is that the coil end positions are aligned while being regulated.

Here, the posture alignment portion of the guide body may be one that is displaced or deformed by the wound coil wire to correct the posture of the coil end portion while restricting the radial outside position of the coil wire. That is, when the posture aligning portion is configured to be of a displacement type, a swinging piece having a substantially arcuate shape and a coil lifting portion at the tip end is axially swingably supported on the axial end surface of the guide body, and The rocking piece can be configured to be biased by a spring member. Further, when the posture aligning portion is constructed in a deformable manner, the leaf spring may be fixed to the axial end surface of the guide body, and the leaf spring may be elastically deformed by the wound coil wire. In this case, the posture aligning portion can be formed to have a width substantially equal to the interval between the two winding grooves to be wound, and the guide portions can be formed on both side surfaces of the posture aligning portion.

[0006]

[Action]

 When the supply nozzle rotates and the coil wire is supplied from the supply nozzle, the coil wire displaces or deforms the posture alignment section, and the guide section guides the coil wire from the circumferential side of the wound portion into the winding groove to wind the winding wire. It is wound between the grooves. At that time, since the posture aligning portion regulates the outer position of the wound coil, the coil wire can be wound while being strongly pulled, and the coil end portion is aligned in a compact posture.

[0007]

【Example】

 Hereinafter, the present invention will be described in detail based on specific examples shown in the drawings. 1 to 3 show a winding guide of a rotating electric machine according to an embodiment of the present invention. In the winding guide 1, the guide main body 10 is configured by fixing substantially trapezoidal guide plate portions 101 to both upper and lower end surfaces of a substantially rectangular parallelepiped base portion 100, and both side surfaces of the guide plate portion 101 have a coil wire 4 as an iron core. It is designed to be inserted into the slot (winding groove) 20 from the circumferential side of the (wound portion) 2. Further, the front surface of the guide main body base 100 is formed in a flat arc shape so that it can be substantially in close contact with the outer peripheral surface of the iron core 2. Further, a pair of fixed guide pieces 11 are arranged and fixed in an H shape on the upper end surface or the lower end surface of the upper and lower guide plate portions 101, respectively, and the tip end portions of the fixed guide pieces 11 are formed into smooth surfaces. The coil wire 4 that is being wound around is guided to the inner part of the slot 20.

A mounting bracket 120 is fixed between the fixed guide pieces 11 on the upper end surface or the lower end surface of the upper and lower guide plate portions 101, and a swinging piece 12 is axially attached to a column portion 121 of the mounting bracket 120. The swinging piece 12 has its rear end pulled by a spring member 122. The oscillating piece 12 has a substantially arcuate shape, and its tip portion is bent slightly upward to form a coil lifting portion 123. Since the outer end of the coil end portion 40 is wound while being regulated by the swing piece 12, it is not always necessary to provide the fixed guide piece 11 to guide the coil wire 4 to the inner part of the slot 20. Further, the width of the rocking piece 12 is set to the space between the slots 20, and the coil wire 4 is guided into the slot 20 by the both side surfaces of the rocking piece 12, that is, the rocking piece 12 functions as the guide plate portion 101. You may make it use together.

After setting the iron core 2 in the winding machine and advancing the winding guide 1 to bring the front surface of the base 100 of the guide body 10 into close contact with the circumferential surface of the iron core 2, the coil wire 4 extending from the supply nozzle is attached. The supply nozzle is rotated by being hooked in the slot 20 of the iron core 2. Then, the coil wire 4 is wound between the two slots 20 of the iron core 2 as the supply nozzle rotates, and the coil is wound. At that time, the coil wire 4 is guided from the circumferential side of the iron core 2 into the slot 20 by the side surface of the guide plate portion 101, and the fixed guide piece 11 is fixed to the coil wire 4 on the end face side in the axial direction of the iron core 2. Is guided to the inner part of the slot 20, and the coil wire 4 being wound is caught by the coil lifting portion 123 of the rocking piece 12 and rocks the rocking piece 12 downward against the spring force of the spring member 122. (See FIG. 2), the swing piece 12 is brought into contact with the end surface of the iron core 2, so that the coil wire 4 is restricted in the radial outer position by the swing piece 12, and the coil end portion 40 is aligned in a compact posture. (See FIG. 3). When the winding between the two slots 20 is completed in this way, the winding guide 1 is retracted, the iron core 2 is rotated by a predetermined angle, and then the coil wire 4 is wound between the next slots 20 as described above.

At the stage of overlapping winding of coils, the rocking piece 12 abuts on the already wound coil (see the chain line A in FIG. 3), and the rocking piece 12 causes the rocking piece 12 to move from the outer position of the lower coil. Also, since the next outer position is regulated inward, the coil wire 4 is surely wound on the coil already wound. Further, since the coil end 40 is not located near the outer peripheral surface of the iron core 2 even when the coil wire 4 is wound while applying a large tensile force, the coil end 40 can be aligned in a compact posture, and the coil end 40 can be aligned in a compact posture. The wire 4 does not stick out from the slot 20, and work such as pushing the coil wire 4 can be eliminated. When the winding work is completed, the coil end 40 can be directly varnished without binding the coil end 40. As a result, winding workability and product yield can be significantly improved. According to the experiments conducted by the present inventors, the conventional winding guide has a winding capacity of only 20 to 30 windings / day, and the yield is 50% or less. The capacity could be increased to 300 pieces per day, and the product yield could be increased to 97-98%. FIG. 4 shows the iron core 2 obtained by the winding guide according to the present invention and the conventional winding guide. In the conventional winding guide, as shown in FIG. 4 (a), protrusion of the coil wire 4 and unevenness of the coil end portion 40 were observed. On the other hand, in the winding guide according to the present invention, as shown in FIG. 4 (b), no protrusion of the coil wire 4 occurs, and moreover, the dimensions of each coil wire 4 at the coil end portion 40 are substantially uniform. In addition to being able to perform, it can be arranged in a compact posture.

[0011]

[Effect of the device]

 As described above, according to the winding guide of the rotary electric machine of the present invention, the posture alignment portion is displaced or deformed by the coil wire wound on the axial end face side, and the radius of the coil wire is changed by the posture alignment portion. Since the coil end positions are aligned while restricting the outer position in the direction, the coil end parts can be reliably aligned in a compact position, and the coil wire can be reliably prevented from protruding, resulting in workability for winding. This has the effect of significantly improving the product yield.

[Brief description of drawings]

FIG. 1 is a perspective view showing an entire structure of a winding guide of a rotary electric machine according to an embodiment of the present invention.

FIG. 2 is a cross-sectional view showing a state of the winding guide before starting winding.

FIG. 3 is a cross-sectional view showing a state after winding of the winding guide.

FIG. 4 is a view showing an iron core wound using a winding guide according to the present invention and a conventional winding guide.

FIG. 5 is a view showing a state in which a conventional winding guide is viewed obliquely and a partially enlarged cross section thereof.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 winding guide 10 guide main body 101 guide plate part (guide part) 12 rocking piece (posture alignment part) 122 spring member 123 coil lifting part 2 iron core 20 slot (winding groove) 4 coil wire 40 coil end part

Claims (4)

[Scope of utility model registration request] 1. A supply nozzle is rotated while supplying a coil wire to a wound portion of a stator or a rotor from a supply nozzle so as to straddle two winding grooves on the outer circumference of the wound portion. In a winding guide that guides the coil wire into the winding groove when winding the coil wire, the guide body includes a guide portion that guides the coil wire into the winding groove from the circumference side of the wound portion, and an iron core axial direction. A posture aligning portion that aligns the postures of the coil ends on the end face side is provided, and the posture aligning portion is displaced or deformed by the wound coil wire, and regulates the radially outer position of the coil wire while controlling the coil end. A winding guide for a rotating electric machine, characterized in that the postures of the parts are aligned. 2. The posture aligning portion supports a swinging piece having a substantially arcuate shape and a coil lifting portion formed at a tip end portion thereof so as to be swingable in an axial direction on an axial end surface of a guide body, and the swinging portion. The winding guide for a rotating electric machine according to claim 1, wherein the winding member is biased by a spring member. 3. The posture aligning portion is configured by fixing a leaf spring, which has a coil lifting portion formed at a tip portion thereof and which is elastically deformable in an axial direction, to an axial end surface of a guide body.
The winding guide of the rotating electric machine described. 4. The posture aligning portion is formed to have a width substantially equal to a space between two winding grooves to be wound, and the guide portions are formed on both side surfaces of the posture aligning portion. Winding guide for rotating electrical machines.