JPS58112444A - Winding method for stator coil - Google Patents

Abstract

PURPOSE:To wind 3-phase coils without cutting a crossover track among poles of the phases by simultaneously winding coils with three fliers on bobbins disposed at an interval of 120 deg.. CONSTITUTION:The clutch and the motor of an electromagnetic clutch brake are operated to simultaneously rotate fliers 92u, 92v, 92w at the same speed in a direction of an arrow, and coils 43u, 43v, 43w are formed on the bobbins which are composd of two touring blades 41 and an auxiliary plate 40. When the coils of prescribed number of turns are finished, the fliers 92u, 92v, 92w are stopped at the prescribed position. Then, the touring blades 41 and the plate 40 outside the bobins, on which the coils 43u, 43v, 43w are wound, are raised, and the bobbins of second stage are formed. In this state, the coils after the second stage are wound. After the coil of one pole is finished, the bobbin and the fliers are indexed relatively for one per number of the poles, and the coils of next pole is then performed.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for winding a stator coil of a three-phase multi-pole motor, and in particular, it relates to a method for winding a stator coil of a three-phase multi-pole motor. The purpose of the present invention is to provide a winding method that takes placement into consideration.

As a winding and assembling device for stator coils, one shown in FIG. 1, for example, has been proposed.

That is, the motor stator coil winding and assembly device 4 is as follows:
As shown in FIG. 2, the pedestal 12 is fixed to the base 11 in two stages, upper and lower, and the motor 16 is connected to the lower stage of the pedestal 12 via a reducer 14, and rotatably penetrates the pedestal 12. , a conveying means consisting of a shaft 15 whose one end protrudes from the upper stage of the pedestal 12, a rotary table 16 fixed to this shaft 15 and rotated by 150 rotations of the shaft, and 4 rotatably arranged on this rotary table 16. a driving means 6' for index rotation and positioning of the wire winding head B, which is arranged in the upper stage of the pedestal 12 in correspondence with the index position of the wire winding head H;
A column 17 (17',
17'') at an index position of the winding and assembling head B so as to face the winding and assembling head B, and winding the winding and assembling head BKlfM and the phase to form a coil. (D', 1)"However, D' and D" have the same configuration as D, so illustrations are omitted.)
The winding and assembling head B is supported so as to face the upper end of the winding and assembling head at the index position of the winding and assembling head B in which all the required coils are formed on the support 18 fixed to the base 11, and the winding and assembling head is A stator core holding means E into which the stator core is fitted onto B, the base 11 and a mount 19 fixed to the base 11 support the winding and assembly head B so as to face the holding means. and an insertion means F for inserting the coil formed on the winding edge head B into the stator core held by the holding means, and a frame 19 supported so as to be slidably passed through the insertion means F. , a wedge supply means G for supplying a wedge to a predetermined position of the insertion means 1'', and a handling means for fixing the end of the wire pulled out from the winding means.

In order to wind the stator coil of a 6-phase 2-pole motor using such a wire winding device A, six winding means D (IJ', D ”), respectively.
Wind two-pole coils for U-phase, V-phase, and W-phase. For example, after winding the first and second coils of the U phase around the winding head B using the winding means, the winding head B is rotated 180 degrees to wind the second pole H coil of the U phase. Turn. Next, the rotary table 16 is rotated, and the winding head B on which the U-phase coil is wound is moved below the next winding means D'. Winding is performed, and further, W-phase winding is performed in the same manner using winding means D''.

When winding is performed in this manner, the six sets of coils wound around the winding head B are arranged as shown in FIG. That is, the V-phase coils 22α, 226 are wound on the U-phase coils 21Z, 21b, and the m-phase coils 23α, 23b are further wound thereon. Such a coil 21fZ
, 21A, 2'2α.

When 22b, 25α, and 26b are inserted into the stator core, they will be arranged as shown in FIG. The U-phase, P-phase, and W-phase are arranged in this order from the inner circumference to the outer circumference of the stator core 25. For this reason, the circumference of the coil is changed to U at each phase.
<, V, and JP must be made longer in that order to be inserted into the stator core. Therefore, the coil resistance changes between the V-phase, V-phase, and W-phase, and even if the same voltage is applied to each phase, variations occur in the generated magnetic force, which deteriorates the performance of the motor. Also, since the circumferential lengths of the coils are different, after inserting the coil into the stator core, it is necessary to protrude from both ends of the stator core.
The disadvantages include that the end coils have different lengths and that shaping them requires a lot of effort.

It is an object of the present invention to overcome the above-mentioned drawbacks of the prior art.
To provide a method of winding a stator coil of a phase multi-pole motor by which the coils of each phase can be wound with the same circumferential length without cutting the connecting wire between the poles of each phase.

In order to achieve the above object, in the present invention, among a large number of winding frames arranged on the same circumference, coils are simultaneously wound around three winding frames at 120 degree intervals using six flyers. After the winding of one pole is completed, the winding frame and the flyer are indexed relative to each other by a fraction of the number of poles, and the winding of the next pole is started.

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

4 to 8 show an example of a winding device for carrying out the present invention. In the figure, the winding and assembling device supplies wedges cut to a predetermined length to an annular magazine. a wedge supplying means A; a touring blade that slidably penetrates the magazine; a wedge guide that is in contact with the upper end surface of the magazine and guides the wedge from the magazine to the stator core; a coil wound around the touring blade; It includes a coil button and a wedge button for respectively inserting the wedges supplied in the magazine into the slots of the stator core, and an auxiliary plate arranged in the outer circumferential direction of the touring blade. The inserter tooling B has an electric wire wound around six winding frames made up of auxiliary plates to form a coil directly on the touring blade, and the rail 32 is arranged above the inserter tooling H by a support 61. The inserter tooling H is supported for reciprocating movement between a working position facing the winding frame formed in the tooling H and a standby position that can also be moved from this working position, and is capable of holding down six flyers and holding three flyers. Wind three coils in a flyer at the same time.

By means of a string means 6' and a holding means supported so as to be movable back and forth between a working position facing the inserter tooling B and a supply position of the fried stator core from this working position, and positioning and holding the stator core. It is configured.

As shown in FIGS. 5 to 5, the winding means C" is slidably supported on the rail 32 via a bracket 50, and is supported by a housing 52 that is slid along the rail 32 by a cylinder 51. This housing 52
A hollow drum 54 is inserted through a bearing 56 in the center of the
is rotatably supported, and a belt 59 is used between a pulley 55 provided on the outer periphery of the pulley 55 and a pulley 5B fixed to the rotating shaft of a motor 57 supported on the outer surface of the housing 52 via a bracket 56. It is rotated by a motor 57. Further, the tram 54 is provided with a stopper block 6o and a pair of sleeves 61, and the stopper block 60 comes into contact with a stopper 62 disposed inside the housing 52 to regulate the rotational position of the drum 54. A pin 64, which is attached above the motor 57 on the outer surface of the housing 52 and connected to a cylinder 66, is fitted into the sleeve 61 to restrict rotation of the drum 54. At the upper end of the drum 54, three pillars 66 are erected radially around the motor 65, which has a motor 65 attached to the center thereof, and each pillar 66 is provided with two rollers 67. Further, wire packs 69 are disposed outside of the reels 70 via brackets 68, each housing a reel 70 in which a wire 6 is wound. Then, the electric wire 63 pulled out from the wire pack 69 is introduced into the roller 67 and drawn into the drum 54 through the hole 71. A support plate 72 is fixed inside and above the drum 54, through which a rotating shaft 72 of the motor 62 rotatably passes through via a bearing 7. The rotating shaft 72
Three hollow shafts 76 are rotatably supported via bearings 75 so as to be positioned at equal intervals on the outside of the shaft, and a pusher 77 is fixed to the upper end of each shaft, and an electromagnetic clutch brake 78 is mounted below. It is located. Furthermore, gears 79 are internally supported on each of the shafts 76 and mesh with a gear 80 fixed to the rotating shaft 72, so that the three shafts 76 are rotated simultaneously in the same direction by the rotation of the motor 65. . Further, a support plate 82 that rotatably supports the lower end of the rotating shaft 72 is fixed to the center of the interior of the drum 54 via a bearing 81. Between the support plate 82 and the lower end surface of the drum 54, six feed screws 83 are rotatably supported via bearings 84. A gear 85 is fixed to the upper end of each of the feed screws 86, and meshes with a gear 87 fixed to the rotating shaft of a motor 86 suspended from the support plate 82, so that the feed screw 86 is rotated by rotation of the motor 86. It is designed to rotate. A nut 88 is screwed into the feed screw 86.
A plate 89 is coupled to 8. Said plate 89
A hollow flyer shaft 91 is rotatably supported through a bearing 90, and its upper end is spline-coupled to the shaft 76, so that it can slide on the shaft 76 and rotate in response to rotation. There is. Further, a flyer 92 is fixed to the lower end of the flyer shaft 91. Then, the electricity a 33 drawn into the drum 54 is inserted into the shaft 76 through the putty senior 7, pulled out through the window formed in the shaft 76 and the flyer shaft 91, and then further passed through the flyer 92 and opened in the flyer 92. It is pulled out from the tip.

With such a configuration, the winding means C° is moved from the standby position to the working position above the inserter tooling B by the operation of the cylinder 51.

At this time, if the three flyers 92 are made to correspond to each phase and are called flyers 92U, 92V, 92W, each flyer 92U, 92V, 92W, as shown in FIG.
q2W is located outside the tooling blade 41 and auxiliary plate 40 of the inserter tooling B.

In this state, when the starting ends of the electric wires 63 drawn out from the flyers 92U, 92V, and qt are fixed at predetermined positions, the two touring blades 41 and 1 are connected to each other corresponding to the flyers q2U, 92V, and q2W. The auxiliary plates 40 are raised to form three winding frames.

In this state, motor 65! The magnetic latch brake 78 is activated and the flyers 92U and 92V are activated.

92W are each moved to the position shown in FIG.

In this state, the clutch of the electromagnetic clutch brake 78 and the motor 65 are operated to open the flyer 92U.

92F and 92W are rotated simultaneously in the direction of the arrow at the same speed to form the winding frame 1tC coils 4sU, asV, +sW. When the required number of windings are completed, the flyer q2U
, 92V, q2W is electromagnetic clutch brake 78
With the braking force of , the motors stop at the positions indicated by the dashed-dotted lines in FIG.

Then, the touring blade 41 and the auxiliary plate 40 on the outside of the winding frame around which the coils 45U, 43V, and 43W are wound
rises to form the second reel frame.

In this state, the motor 65 and the electromagnetic clutch brake 7
8, the second stage winding is performed.

Winding up to the fifth stage is performed for each phase with the same polarity.

When all the windings of one pole are finished, the flyer 92U.

92V, 92W and each coil 45U, 45V,
tH33 stretched between the terminal ends of 43F is held by a holding means (not shown). Then all the reel frames are lowered.

Nao, Flyer 920, 92V, cnuP I) Dog? !
8, when winding the third stage, flyer 92U (9
2V, 92W) may come into contact with the touring blade 41 constituting the adjacent winding frame. In this case, the winding of the sixth stage may be performed one phase at a time, and the winding frame may be lowered sequentially from the winding that has been completed.

Then, the drum 54 is moved 180 degrees by the operation of the motor 57.
Rotate the fryer 92U, 92V, 92W
are moved to the positions shown in FIG.

In this state, the second pole is wound in the same manner as the first pole.

In this way, the second pole coil 44U.

When 44V and 44t are wound, each winding frame and flyer 9
The IIL wire 63 stretched between 2U, 92V, and 92W is held and cut by a holding and cutting means (not shown).

The winding means C' then returns to the standby position by the actuation of the cylinder 51.

Meanwhile, the stator core is moved to the insertion position above the inserter tooling B by the holding means. And coil 43U, 45V, 43W and coil 44U
, 44V and 44jF are inserted into the stator core at the same time.

At this time, the arrangement of the coils is as shown in FIG. 11, with the coils 43U, 45V, 45? Since the second pole coils 44U, 44V, 44W are wound on top of the stator core 45, as shown in FIG.
5V, 43r is located inside the stator core 45,
The second pole coils 44U, 44V, and 44W are located outside the stator core 45.

The length of the coils 44U, 44V, and 44IP is set slightly longer than the circumference fz of the coils 43U, sV, and 4sW, but since the circumference of each phase's coil is the same, The coil resistance will also be the same size.

In the above embodiment, the stator core has 36 slots and 2 poles.
The number of slots in the stator core and the number of poles in the coil are not limited to those in the above embodiments.

As described above, according to the present invention, six flyers are used to simultaneously wind coils on winding frames arranged at 120 degree intervals among a large number of winding frames arranged on the same circumference. , 6-phase coils can be wound continuously without cutting the connecting wire between the poles of each coil, and with the same circumferential length of each phase coil, so there is no variation in characteristics between the phases. can be eliminated. Further, the characteristics of the motor can be improved. Furthermore, there is an effect that the amount of electric wire used to form the coil can be reduced by approximately %.

[Brief explanation of the drawing]

Fig. 1 is a perspective view showing an example of a conventional winding device, Fig. 2 is a plan view showing the arrangement of coils wound by the winding device shown in Fig. 1, and Fig. 3 shows how the coils shown in Fig. 2 are connected to the stator core. 4 is a front view showing an example of a winding device for implementing the present invention; FIG. 5 is a plan view of the winding means in FIG. 4; 6 is a front sectional view of FIG. 5, FIG. 7 is a sectional view taken along the line ■-■ of FIG. 6, FIGS. 8 to 10 are process diagrams showing the winding process, and FIG. FIG. 12 is a plan view showing the arrangement of the wound coils, and FIG. 12 is a plan view showing the arrangement of the coils when the coil of FIG. 11 is inserted into the stator core. 40... Auxiliary plate 41... Touring blade 45U, 43V, 45W; 44U, 44V
, 44W...Coil 92U, 92V, 92
JF...Flyer agent patent attorney Susuki 1) Mura-Ayuki/l l Donkey 2nd round 21 piece 7 crime o 8cX

Claims (1)

[Claims] A method of winding the stator coil of a 15-phase multi-pole motor, in which the rotation centers are arranged at 120 degree intervals on the same circumference.
A book flyer is placed opposite six winding frames arranged at 120 degree intervals among the h (number of phases x number of poles) winding frames arranged at predetermined intervals on the circumference, and the flyer and After raising the six opposing winding frames to the winding position, the three flyers are rotated at the same time to perform winding, and after winding of one pole is completed, the flyers stop, and the winding frames are lowered. θ (660 degrees/number of poles) along the circumference of each flyer or reel.
A stator coil winding method characterized in that the stator coil is rotated by an index, a new winding frame facing the flyer is raised, and the winding is sequentially wound on each winding frame to wind a coil having a predetermined number of poles.