JPH0568357A - Coil end forming jig for coils for rotating electrical machines - Google Patents

Abstract

PURPOSE:To obtain a coil end shaping jig which can shape coils of electric rotating machine having different sizes through simple structure. CONSTITUTION:The coil end shaping jig comprises a surface plate 5, a plurality of angled stays 4 supported movably along elongated holes 7 in the surface plate 5, and dowels 8 disposed movably on the angled stays 4 in order to support the coil ends 1. The angled stays 4 are disposed radially on the surface plate 5 and the dowels 8 are fixed at predetermined positions. Since the coil ends 1 are shaped while being supported by the dowels 8, special servo motor is not required resulting in simplification of structure.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a coil end forming jig such as a stator winding of a large turbine generator.

[0002]

2. Description of the Related Art FIG. 3 is a perspective view showing a conventional coil end forming jig for a coil for a rotary electric machine. Conventionally, a coil end 1 such as a stator winding of a large-sized turbine generator is manufactured as a conical drum 2 each time depending on the size of the coil, a bending guide 3 is fixed on the conical drum 1, and the coil end 1 is used as a bending guide 3. It was hit and bent on the conical drum 2.

FIG. 4 is a perspective view showing another conventional coil end forming jig for a coil for a rotary electric machine. (JP-A-61-
In FIG. 4, a plurality of face plates 13 are radially arranged, bending devices are attached to both sides of the face plate 13, an elevating mechanism for raising the face plate 13 is attached, and the face plate 13 can be moved along an inclined surface of the face plate 13. The half coil conductor clamp mechanism 14 is attached, and the coil is held by the clamp mechanism 14 at the time of coil forming, and simultaneously the clamp mechanism 14 is moved to form the half coil conductor in a curved shape on the inclined surface of the face plate 13. A device is provided. Reference numeral 11 is a convex conical surface type, 12 is an underframe, and 15 is a servomotor.

[0004]

In the example of FIG. 3, the conical drum 2 is manufactured for each coil, which is troublesome. In the example of FIG. 4, a screw and a handle for moving the slider, a screw and a servomotor for moving the clamp mechanism are required, and there is a drawback that the structure becomes complicated.

An object of the present invention is to provide a coil end molding jig for a coil for a rotary electric machine, which has a simple structure and can form coil ends of coils for a rotary electric machine having different sizes.

[0006]

Means for Solving the Problems A surface plate, a plurality of angled stays movably supported along a long hole of the surface plate, and movably arranged on each of the angled stays to support a coil end. By arranging the angled stays radially on the surface plate, fixing each of the tops in a predetermined position, and bending and shaping the coil end while supporting the coil end up to the top. , To achieve the above purpose.

The slotted plate has a T-shaped cross section, and the angled stay is engaged with the slotted hole, which is suitable for moving the angled stay.

Further, the groove of the angled stay has a T-shaped cross section, and it is suitable for moving the top by engaging the top with the groove.

[0009]

According to the present invention, the angled stays are radially arranged on the surface plate to provide an inclination with respect to the surface plate,
By moving the top onto the angled stay, the inclination of the coil end can be freely changed depending on the shape of the coil end. If the long hole of the surface plate is formed in a T-shape in cross section and the angled stay is engaged with the long hole, the angled stay can be freely moved on the surface plate. Further, the groove of the angled stay is T-shaped in cross section, and if the top is engaged with this groove, the top can be freely moved on the angled stay.

[0010]

1 is a perspective view showing a molding jig according to an embodiment of the present invention. In FIG. 1, the same parts as those in FIG. 3 are designated by the same reference numerals. The forming jig according to the embodiment of the present invention includes a surface plate 5, a plurality of angled stays 4 movably supported along the elongated holes 7 of the surface plate 5, and movable on each of the angled stays 4. And a top 8 for supporting the coil band 1. The elongated holes 7 are formed in parallel with the base 10 of the surface plate 5 and have a T-shaped cross section, and are configured to be movable by engaging the protrusions of the angled stay 4.

FIG. 2 is a view on arrow II in FIG. The angled stays 4 are stays having a constant angle θ with respect to the surface plate 5, and are radially arranged around the assumed center 9 in FIG. Reference numeral 6 is a bending guide arranged on the upper end of the surface plate 5. The top is freely moved along the T-shaped groove of the angled stay 4, and the position is fixed with a screw.

A method of forming the coil end will be described. The surface plate 5 is erected vertically on the bed 10, and the angled stays 4 are moved along the long holes 7 of the surface plate 5 so as to be radial to the surface plate 5. Next, the scales 8 are respectively attached to the angled stays 4 so as to have a predetermined inclination corresponding to the size of the coil and the bending angle.
Fix it in the T-shaped groove. Bending guide 6 for coil end 1
The coil end 1 is formed by bending while pressing against the top 8 and the top 8.

[0013]

According to the present invention, the coil end forming jig is composed of a surface plate, an angled stay to be mounted on the surface plate, and a top fixed to the angled stay. By changing the arrangement of the angled stays and the position of the top according to the size and shape of the coil end, the inclination angle of the coil end on the surface plate can be arbitrarily set and the coil end can be formed without using a mechanism.

[Brief description of drawings]

FIG. 1 is a perspective view showing a coil end molding jig according to an embodiment of the present invention.

FIG. 2 is a view on arrow II in FIG.

FIG. 3 is a perspective view showing a conventional coil end molding jig.

FIG. 4 is a perspective view showing a coil end molding jig according to another conventional example.

[Explanation of symbols]

 1 Coil end 2 Conical drum 4 Angled stay 5 Surface plate 6 Bending guide 7 Elongated hole 8 Top

Claims (3)

[Claims] 1. A surface plate, a plurality of angled stays movably supported along an elongated hole of the surface plate, and a trowel which is movably arranged on each of the angled stays and supports a coil end. The rotation is characterized in that the angled stays are radially arranged on the surface plate, the respective tops are fixed at predetermined positions, and the coil ends are bent and formed while supporting the ends. Coil end molding jig for electric machine coil. 2. A coil end forming jig for a coil for a rotary electric machine according to claim 1, wherein the oblong hole of the surface plate has a T-shaped cross section, and the angled stay is engaged with the oblong hole. A coil end forming jig for a rotating electric machine coil, characterized by: 3. The coil end forming jig for a coil for a rotating electric machine according to claim 1, wherein the groove of the angled stay has a cross section of T.
A coil end forming jig for a coil for a rotary electric machine, characterized in that the jig is formed in a character shape, and a top is engaged with the groove.