JPS5854583B2 - How to form a coil - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for forming a coil, and in particular to a method for forming a coil that prevents wiring errors during the coil assembly process and thereafter by using bent ends. It is about the method.

SUMMARY OF THE INVENTION An object of the present invention is to facilitate the discrimination of the ends of a plurality of coils drawn out from each coil of an electric device, etc., which is composed of one type of housing or multiple types of coils.

The coils of conventional electrical equipment use colored wires of the same color or density, which has the drawback of causing incorrect wiring by workers when wiring to terminals, etc. for electrical connection with the outside.

The present invention eliminates the drawbacks of the prior art.

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the accompanying drawings.

First, the coil of the present invention will be explained with reference to FIG. 1, taking a stator coil as an example.

1 is a stator core, and 2 is a main coil.

2a is the start end of the 20th main coil, and 2b is the end of the 20th main coil.

3, 4.5 are auxiliary coils, and there are three types.

3a is the winding start end of the auxiliary coil 3, which has no convex shape.

3b is the final end of 30 turns of the auxiliary coil and has one convex shape.

4a is the winding start end of the auxiliary coil 4, and has one convex shape.

4b is the final end of 40 turns of the auxiliary coil, and has two convex shapes.

5a is the starting end of the 50th winding of the auxiliary coil, and has two convex shapes.

5b is the end of the 50th turn of the auxiliary coil, and there is no convex shape.

Reference numeral 6 denotes an insulator, which insulates the stator core 1, the main coil 2, and the auxiliary coils 3, 4, and 5.

It can be easily determined which auxiliary coil each of the winding start ends 3a, 4a, and 5a corresponds to by looking at the number of convex shapes.

Similarly, the end portion 3b of the winding. Each of the auxiliary coils 4b and 5b can be easily identified by the number of convex shapes.

Next, an embodiment of the coil end forming apparatus for electrical equipment according to the present invention will be described.

First, the overall configuration of the present invention will be explained with reference to FIGS. 2 and 3.

T is a flyer, which rotates around the winding frame 8 in the direction of arrow A or in the opposite direction.

A nozzle 9 is fixed to the flyer 7 and guides the electric wire 10 in a slidable manner.

11 is a blade. 12 is a coil housing space;
The electric wire 1 is formed by adjacent blades 11 and attached to the winding frame 8.
It receives a coil 13 formed by winding 0.

14 is a hook lever, which has a hook 15 at one end;
The other end is fixed to the shaft 16.

The shaft 16 rotates intermittently every 180 degrees in the direction of arrow B, rotating the hook lever 14 from the position A to the mouth position and from the father's day position to the position A.

17.18 is the axis. 19.20 is a cutting arm, which is rotatably supported around a shaft 17.degree. 18 as a fulcrum.

Reference numeral 21 indicates a U-shaped groove, and 22 indicates a U-shaped protrusion, which are provided on the cutting arms 19 and 20, and are engaged with each other so that the arms 19 and 20 are opened and closed in synchronization.

A rod end 23 has one end connected to the cutting arm 19 via a pin 24 and the other end connected to a cylinder (not shown).

25.26 is a clamp blade, cutting arm 1
9 and 20.

Reference numerals 27 and 28 indicate cutting blades, which are fixed to cutting arms 19 and 20.

29 and 30 are molding levers, which have a concave molding blade 31, are rotatably supported by the shaft 17, and are connected to connectors 32 and 3.
3. Renoid (not shown) via rod 34.35
is connected to.

36, 3γ is a forming lever, which has a convex forming blade 38, is rotatably supported on the shaft 18, has a U-shaped groove 21, and has a U-shaped protrusion 22 of the forming lever 29, 30. When engaged, the molding levers 29 and 30 are opened and closed synchronously.

Molding levers 29, 30, 36, 37 are cutting blades 27.28
and the clamp blades 25 and 26, and are always open.

Reference numeral 39 denotes an end extending from the nozzle 9 of the fryer 7 to the hook 15, which is formed by rotating the hook lever 14 in the direction of arrow B, and is connected to the winding start end 3a of the auxiliary coils 3, 4.5 in FIG. , 4b, 5a, one end is held by clamp blades 25, 26, and cut near hook 150 by cutting blades 27, 28.

Reference numeral 40 denotes an end from the wound coil 13 to the hook 15, which corresponds to the ends 3b, 4b, 5b of the auxiliary coil 3, 4, and 50 windings in FIG.
4a, 4b, 5a, 5b are the concave shaping blades 31. of the shaping lever 29.30. Convex molding blade 3 of molding lever 36, 37
It is in the length range of 8.

Next, the operation will be explained.

The coil of one embodiment of the present invention is for four poles, and one type of auxiliary coil 3 is formed from four coils 13.

Among the three types of auxiliary coils 3, 4, and 5, the winding of the auxiliary coil 3 will be explained first.

As shown in FIG. 2, the hook lever 15 is in the mouth position.

At this time, the winding start end 39 extends from the nozzle 9 of the fryer 7 to the cutting blades 27, 28, and is held by the clamp blade 25.26, and is held by the clamp blade 25.26 and the cutting blade 27.2.
It is not formed into a convex shape when turned between 8.

Next, when the fryer 7 rotates in the direction of arrow A, the electric wire 10 is fed out from the nozzle 9 and wound around the winding frame 8 to form a coil 13.
is formed and moves to the coil accommodation space 12.

At this time, the winding start end 39 is in the position.

When the electric wire 10 is wound several turns on the winding frame 8, the clamp blades 25, 26 open and release the end 39, and the hook lever 14 rotates 1800 times to reach the position A.

When the coil 13 of the first pole is received in the end-of-winding coil storage space 12, the coil receiving jig 41 rotates 900 times in the direction of arrow C, the fryer 7 rotates 900 times in the direction of arrow C, and the fryer 7 rotates in the direction of arrow F. , after winding the second pole coil 13, the coil 13 is received in the coil housing space 12.

Next, the coil receiving jig 41 is rotated 90 degrees in the direction of arrow C,
The fryer T rotates in the direction of arrow A, and the third pole coil 1
3 is formed and received in the coil accommodation space 12.

Next, after the coil receiving jig 41 rotates in the direction of arrow C at 900, the fryer 7 rotates in the direction of arrow C, and when the winding of the fourth pole coil 13 on the winding frame 8 is completed, the flyer 7 is in the second position. It stops, and the electric wire 10 is stretched from the coil 13 to the nozzle 9.

Next, when the hook lever 14 is rotated 1800 degrees in the B direction and moved to the opening position, the electric wire 10 is caught by the hook 15,
As shown in FIG. 4, the clamp blades 25, 26 in the open state, the forming blades 31, 38, and the opening position passing through the cutting 27, 28 are reached, and two end portions 39, 40 are formed.

Next, the cutting arms 19 and 20 close and the cutting blade 27
．． One end 39 is cut by 28 and clamped by clamp blades 25 and 26.

This end 39 becomes the winding start end 4a of the next auxiliary coil 4.

Thereafter, when the forming levers 30, 36 are closed as shown in FIG. 6, one convex end portion 39, 40 is formed.

(Figure 9).

Now, by combining the operations of these forming levers 29, 30.
It becomes possible to form individual pieces.

The ends 40 exit the cutting arms 19, 20 as the coil receiving fixture rotates.

Similarly, the auxiliary coil 4 is wound on top of the auxiliary coil 3, and the ends 39 and 40 are formed into two convex shapes by operating the forming levers 29, 30, and 37 as shown in FIG. be done.

Similarly, the auxiliary coil 5 is wound over the auxiliary coil 4, and the molding levers 29, 30, 36, 37 are rolled as shown in FIG.
By not activating , no convex shape is formed at the ends 39 and 40 (FIG. 8).

According to the present invention, each time the process of forming a coil is performed multiple times, a process of bending the electric wire is provided, and by making the shape of the bending different, the coil can be formed without attaching a special mark band etc. At the same time, it is possible to obtain the effect of making it possible to discriminate between each of the plurality of coils.

[Brief explanation of drawings]

Fig. 1 is a perspective view showing the end of a coil formed by the coil forming method of the present invention, Fig. 2 is a plan view of an end cutting device for coils of electrical equipment, and Fig. 3 is a perspective view of the same end cutting device. figure,
Figure 4 is a sectional view of the main part taken along line D-E in Figure 2,
Figures 6 and 7 are explanatory diagrams for explaining the coil end forming operation, respectively, and Figures 8, 9, and 10 are explanatory diagrams for explaining the coil end forming state, respectively. . 1...Stator core, 2...Main coil, 3,4゜5...Auxiliary coil, 2a...
・End of winding of main coil, 3a: Start of winding of auxiliary coil, 4a: End of winding of auxiliary coil, 5a: End of winding of auxiliary coil starting end, 29,
30, 36, 37...Mold ″-0

Claims (1)

[Claims] 1. Winding the electric wire around the winding frame using the fryer includes a coil forming step to form a coil, a cutting step to cut the electric wire existing between the coil formed by the above step and the flyer, and almost simultaneously with this cutting step the above step. a forming step of bending and holding the electric wire connected to the coil, and when forming a plurality of coils by repeating the coil forming step, cutting step, and forming step multiple times, the plurality of forming steps A coil forming method characterized by bending and forming electric wires into different shapes.