JP2010234400A - Square wire conductor bending tool - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a square wire conductor bending tool capable of suppressing the width of a bending part of a square wire conductor from becoming wide in the direction of a pair of sides, thereby eliminating the need of applying a correction process or the like to the square wire conductor. <P>SOLUTION: The square wire conductor bending tool 1 has: a first tool part 2 provided with a first guide surface 21; and a second tool part 5 provided with a second guide surface 51. The first tool part 2 is provided with: an inside bending projection 3 which faces the inner side of the square wire conductor 8; and an outside facing projection 4 which faces the outer side of the square wire conductor 8. The second tool part 5 is relatively rotatable to the first tool part 2 centering around a corner part 31 which forms a bending starting point. The second tool part 5 is provided with an outside bending projection 6 which faces the outer side of the square wire conductor 8. In a process of performing bending, the first guide surface 21 constrains one side of a bending part of the square wire conductor 8, and the second guide surface 51 constrains the other side of the bending part of the square wiring conductor 8. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a rectangular conductor bending jig used when a rectangular conductor having a substantially rectangular cross section formed by forming an insulating coating layer on the surface of a metal conductor layer is bent.

For example, in a stator of a three-phase rotating electrical machine, a three-phase coil formed in a wave winding shape that goes around the circumferential direction is arranged in a distributed winding state in a plurality of slots in the stator core. The wave-wound coil is formed by bending from a linear conductor to approximately 90 ° using a bending jig.
For example, as shown in FIG. 9, one jig part 91 provided with a shaft part 911 that forms a bending start point, and the other jig part 91 that rotates around the shaft part 911 with respect to the one jig part 91. A bending jig 9 composed of the jig portion 92 is used. The other jig part 92 is formed with a folded surface 921 on the side facing the shaft part 911. And the linear rectangular conductor 8 is arrange | positioned ranging over one jig part 91 and the other jig part 92, and as shown in FIG. When 92 is rotated around the shaft portion 911, the rectangular conductor 8 is guided by the folding surface 921, and is bent approximately 90 ° around the shaft portion 911.
Moreover, as an electric wire vendor which bends an electric wire in about 90 degrees, there exist some which were indicated by patent documents 1, 2, for example.

JP 2008-73758 A JP 2006-130550 A

However, when the rectangular conductor 8 is bent using the conventional bending jig 9, as shown in FIG. 10, the bent inner portion 981 receives a compressive load and the pair of side surfaces 983 becomes wider. On the other hand, the bent outer portion 982 receives a tensile load and the width of the pair of side surfaces 983 becomes narrower. The bent portion 980 of the rectangular conductor 8 is formed in a trapezoidal cross section. Therefore, in particular, when forming the coil end portion (a part of the coil) arranged in alignment with the axially outer side of the stator core by the bent rectangular conductor 8, the width of the pair of side surfaces 983 is wide. There is a possibility that the bent inner portion 981 which is the portion that has become interferes with other rectangular conductors 8 and the coil end portion is enlarged. Further, when the rectangular conductor 8 is disposed in the slot in the stator core, the bent inner portion 981 may interfere with the edge of the slot in the stator core. It was necessary to reduce the width of the bent portion 981.
Note that the wire benders of Patent Documents 1 and 2 are based on the premise that a round wire having a substantially circular cross section is bent. However, the same problem as described above occurs when a square wire is bent.

  The present invention has been made in view of such conventional problems, and suppresses the width of the bent portion of the rectangular conductor from being widened in the direction of the pair of side surfaces, and corrects the rectangular conductor. It is an object of the present invention to provide a rectangular conductor bending jig that can eliminate the need for a wire.

The present invention is a jig used when bending a rectangular conductor having a substantially rectangular cross section formed by forming an insulating coating layer on the surface of a metal conductor layer,
A first jig portion provided with a first guide surface facing one side surface of the rectangular wire conductor; and a second jig portion provided with a second guide surface facing the other side surface of the rectangular wire conductor. The first jig portion and the second jig portion between the first guide surface and the second guide surface in a state where the second jig portion and the first jig portion are combined. Forming a bending space for sandwiching the rectangular conductor in a slidable state,
When bending the rectangular conductor, the first guide surface constrains one side surface of the bent portion of the rectangular conductor, and the second guide surface is the other side surface of the bent portion of the rectangular conductor. It is in the square conductor bending jig characterized by being comprised so that may be restrained (Claim 1).

In the process of bending the rectangular conductor, the rectangular conductor bending jig of the present invention constrains the pair of side surfaces of the rectangular conductor so that the width of the pair of side surfaces of the rectangular conductor after bending is reduced. Widening can be effectively suppressed.
When a rectangular conductor is bent using the rectangular conductor bending jig of the present invention, a linear shape is formed between the first guide surface of the first jig portion and the second guide surface of the second jig portion. The rectangular wire conductor is arranged. Then, the rectangular wire conductor is bent by sliding the second jig portion relative to the first jig portion. At this time, in the rectangular conductor bending jig of the present invention, in the process of bending, the first guide surface in the first jig portion restrains one side surface of the bent portion of the rectangular conductor, and the second The second guide surface in the jig portion restrains the other side surface of the bent portion of the rectangular conductor. Thereby, the bent inner portion of the rectangular conductor is suppressed from being widened in the direction of the pair of side surfaces (the direction of one side surface and the other side surface) while receiving a compressive load. It should be noted that the width of the bent portion of the rectangular conductor becomes wider within the range of the bending space.

  Therefore, according to the rectangular wire bending jig of the present invention, the width of the bent portion of the rectangular wire conductor is prevented from being widened in the direction of the pair of side surfaces, and the rectangular wire conductor is subjected to correction processing or the like. Can be made unnecessary.

The perspective view shown in the state which decomposed | disassembled the square conductor bending jig | tool which has the 2nd jig | tool part in an original position in an Example. Plane explanatory drawing which shows the internal state of the square conductor bending jig | tool which has a 2nd jig | tool part in an original position in an Example. The perspective view shown in the state which decomposed | disassembled the square conductor bending jig | tool which has the 2nd jig | tool part in an original position in an Example. Plane explanatory drawing which shows the internal state of the square conductor bending jig | tool which has a 2nd jig | tool part in an original position in an Example. Sectional drawing which expands and shows the square wire conductor arrange | positioned between the 1st guide surface of the 1st jig | tool part, and the 2nd guide surface of the 2nd jig | tool part in an Example. Sectional drawing which expands and shows the bending part of a rectangular conductor in an Example. The perspective view which shows the stator using a square wire conductor in an Example. Cross-sectional explanatory drawing which shows the state which inserts and arrange | positions the three-phase coil using a square wire conductor with respect to the stator core in an Example. The perspective view which shows the jig | tool for bending before bending a square wire conductor in a prior art example. The perspective view which shows the jig | tool for bending after bending a square wire conductor in a prior art example. Sectional drawing which expands and shows the bending part of a rectangular conductor in a prior art example.

A preferred embodiment of the above-described rectangular conductor bending jig of the present invention will be described.
In the present invention, the first jig portion includes an inner bent convex portion that protrudes from the first guide surface and faces the inner surface of the rectangular conductor within the range of the width of the bending space, An outer-facing convex portion that protrudes from the first guide surface within the range of the width of the bending space and faces the outer surface of the rectangular conductor is provided, and the corner portion of the inner bent convex portion is A bending starting point is formed when the rectangular conductor is bent, and the second jig part is rotatable relative to the first jig part around the bending starting point. The second jig portion is provided with an outer bent convex portion that protrudes from the second guide surface and faces the outer surface of the rectangular conductor within the range of the width of the bending space. The curved convex portion is an outer surface of the rectangular conductor when the second jig portion is rotated relative to the first jig portion. Face-to-face, it is preferable that are configured to bend the angular line conductor (claim 2).

  In this case, when a linear rectangular conductor is disposed between the first guide surface of the first jig portion and the second guide surface of the second jig portion, the inner bending of the first jig portion is performed. The convex portion faces one side surface of the linear rectangular conductor, and the outer opposing convex portion in the first jig portion and the outer bent convex portion in the second jig portion are the other side surfaces of the linear rectangular conductor. Face to face. And if the 2nd jig part is rotated relatively with respect to the 1st jig part, while receiving the load by the outside opposing convex part, the corner part in the inner folding convex part will be used as the folding start point, and the outer folding part will be The curved convex portion can bend the rectangular conductor.

The second jig portion includes a first wall surface in the inner bent convex portion, a facing wall surface in the outer facing convex portion, and a bent wall surface in the outer bent convex portion, and a gap therebetween. The original position where the conductor arrangement gap is formed, the second wall surface adjacent to the first wall surface at a predetermined angle in the inner bent convex portion, while the first wall surface and the opposing wall surface face each other. It is preferable that the bent wall face is opposed to the bent position where the rectangular conductor is bent, and is rotatable relative to the first jig portion. ).
In this case, by rotating the second jig portion relative to the first jig portion from the original position to the bent position, the rectangular conductor can always be bent at a fixed angle.

Moreover, it is preferable that the said inner side bending convex part is detachable with respect to the said 1st guide surface of the said 1st jig | tool part (Claim 4).
The radius of curvature of the bent inner portion of the rectangular conductor is determined by the radius of curvature (R shape) of the corner portion of the inner bent convex portion. Therefore, the curvature radius of the bent inner portion when the rectangular conductor is bent can be easily changed by replacing the inner bent convex portion with respect to the first jig portion.

Moreover, it is preferable that the said square wire conductor is a magnet wire used for the stator of a rotary electric machine (Claim 5).
In this case, the rectangular wire conductor is prevented from being widened in the direction of the pair of side surfaces by using the rectangular wire conductor as a magnet wire for the stator of the rotating electrical machine. The portion can be arranged in the slot of the stator core without performing correction processing or the like.

Hereinafter, embodiments of the rectangular conductor bending jig of the present invention will be described with reference to the drawings.
As shown in FIG. 1, the rectangular conductor bending jig 1 of this example is a rectangular conductor having a substantially rectangular cross section in which an insulating coating layer made of resin or the like is formed on the surface of a metal conductor layer made of copper material or the like. This is used when bending 8.
As shown in FIG. 2, the rectangular wire bending jig 1 includes a first jig portion 2 provided with a first guide surface 21 facing one side surface 801 of the rectangular wire conductor 8, and the other side surface of the square wire conductor 8. And a second jig portion 5 provided with a second guide surface 51 facing 802. In a state where the second jig portion 5 and the first jig portion 2 are combined, the first jig is interposed between the first guide surface 21 and the second guide surface 51 as shown in FIGS. A bending space S is formed to sandwich the rectangular conductor 8 in a state where the tool part 2 and the second jig part 5 are slidable.

  As shown in FIGS. 1 and 2, the first jig portion 2 has an inner folding surface that protrudes from the first guide surface 21 and faces the inner surface 803 of the rectangular conductor 8 within the range of the width of the bending space S. The curved convex portion 3 and the outer facing convex portion 4 that protrudes from the first guide surface 21 and faces the outer surface 804 of the rectangular conductor 8 within the range of the width of the bending space S are provided. In addition, the corner portion 31 of the inner bent convex portion 3 is formed in a curved surface shape that forms a bending start point when the rectangular conductor 8 is bent.

The second jig portion 5 is rotatable relative to the first jig portion 2 around a corner portion 31 that forms a bending start point. The second jig portion 5 is provided with an outer bent convex portion 6 that protrudes from the second guide surface 51 within the range of the width of the bending space S and faces the outer surface 804 of the rectangular conductor 8. The outer bent convex portion 6 faces the outer surface 804 of the rectangular conductor 8 when the second jig portion 5 is relatively rotated with respect to the first jig portion 2, and the rectangular conductor 8 is configured to be bent.
In the rectangular conductor bending jig 1 of this example, as shown in FIG. 6, the first guide surface 21 constrains one side surface 801 of the bent portion of the rectangular conductor 8 in the entire bending process. The two guide surfaces 51 are configured to restrain the other side surface 802 of the bent portion of the rectangular conductor 8.

Below, it explains in full detail with reference to FIGS. 1-8 about the square conductor bending jig 1 of this example.
As shown in FIG. 1, the second jig portion 5 of the present example is formed in a disk shape, and the first jig portion 2 has a disk-shaped second jig portion 5 with respect to the base portion 22. An accommodation wall portion 23 to be accommodated is erected, and a sliding inner peripheral surface 231 for sliding the outer peripheral surface 53 of the second jig portion 5 is formed on the inner peripheral side of the accommodation wall portion 23. Further, on the inner peripheral side with respect to the sliding inner peripheral surface 231, a step surface 24 that protrudes in a step shape from the first guide surface 21 and slides the second guide surface 51 in the second jig portion 5 is formed. . The first jig portion 2 is formed by attaching a lid portion 25 to the accommodation wall portion 23.
1 and 3 are shown in an exploded state in order to show the inside of the rectangular conductor bending jig 1. In FIG. 3, the lid portion 25 is omitted.

As shown in FIG. 5, the first guide surface 21 and the second jig in the first jig portion 2 in the state where the second jig portion 5 is accommodated in the sliding inner peripheral surface 231 in the first jig portion 2. The second guide surface 51 in the part 5 is arranged in parallel to each other.
As shown in FIG. 1, the rectangular conductor bending jig 1 accommodates the second jig portion 5 in the accommodating wall portion 23 of the first jig portion 2, and the step surface 24 and the surface of the lid portion 25. The second jig part 5 is sandwiched between them, and the cover part 25 is attached to the housing wall part 23.

The projecting height (formation height) of the inner bent convex part 3 and the outer opposing convex part 4 from the first guide surface 21 is larger than the projecting height from the first guide surface 21 to the step surface 24. It is lowered (for example, it can be lowered by 0.05 to 0.2 mm).
As shown in FIG. 5, the bending space S between the first guide surface 21 and the second guide surface 51 includes the protrusion height of the inner bending convex portion 3 from the first guide surface 21 and the first jig. It is formed as a width that combines a clearance when the part 2 and the second jig part 5 are assembled (a clearance when the second jig part 5 is sandwiched between the step surface 24 and the lid part 25). Yes.
In addition, the 1st jig | tool part 2 can be formed in the said disk shape, and the 2nd jig | tool part 5 can also be comprised from the said base part 22, the accommodating wall part 23, and the cover part 25. FIG.

As shown in FIG. 1, the inner bent convex portion 3 and the outer opposed convex portion 4 of this example can be attached to and detached from the first guide surface 21 of the first jig portion 2. Moreover, the outer side bending convex part 6 of this example is detachable with respect to the 2nd guide surface 51 of the 2nd jig | tool part 5. As shown in FIG.
As shown in FIG. 2, the inner bent convex portion 3 has a first wall surface 32 and a second wall surface 33 which are substantially perpendicular wall surfaces constituting the corner portion 31 forming the bending start point. Both the first wall surface 32 and the second wall surface 33 are formed on flat surfaces. Moreover, the outer side opposing convex part 4 of this example has the opposing wall surface 41 parallel to the 1st wall surface 32 in the inner side bending convex part 3. FIG. In addition, the outer bent convex portion 6 of the present example has a bent wall surface 61 parallel to the first wall surface 32 in the inner bent convex portion 3 in a state where the rectangular conductor 8 is disposed (original position 501 described later). is doing. Both the opposing wall surface 41 and the bent wall surface 61 are formed on flat surfaces.

The rectangular conductor bending jig 1 of this example prepares a plurality of inner bending convex portions 3 having different curvature radii (R shape) of the corner portions 31 and replaces them appropriately so that the rectangular wire conductor 8 ( In particular, the bent inner portion 81) of the rectangular conductor 8 can be bent to various radii of curvature (bending R).
In addition, by preparing a plurality of types of outer facing convex portions 4 and outer bent convex portions 61 and appropriately replacing them, the space between the first wall surface 32 of the inner bent convex portion 3 and the opposing wall surface 41 of the outer facing convex portion 4 is changed. The conductor arrangement gap C can be appropriately changed. Thereby, bending of the rectangular conductor 8 of various thickness (width) can be performed.

As shown in FIG. 1, handles 234 are provided on the outer peripheral surface of the first jig portion 2 and the outer peripheral surface of the second jig portion 5, respectively, for the operator to rotate. The first jig part 2 is formed with a notch 232 for avoiding interference of the handle 52 of the second jig part 5. Further, the first jig portion 2 is also formed with an insertion arrangement hole 233 for inserting and arranging the rectangular conductor 8. As shown in FIG. 3, the rectangular conductor 8 is bent in the same direction as the rotation direction of the handle 52 of the second jig portion 5 using the inside of the cutout portion 232.
In addition, in the 1st jig | tool part 2 of this example, in order to avoid the interference of the volt | bolt for attaching the outer side bending convex part 6 to the 2nd jig | tool part 5 so that attachment or detachment is possible, it corresponds to the movement range of this bolt. An escape hole 221 is formed.

  As shown in FIG. 2, the second jig portion 5 of the present example has an original position 501 for forming a conductor arrangement gap C in which the linear rectangular conductor 8 is arranged, and an original position 501 as shown in FIG. 4. It can be rotated about 90 ° relative to the bending position 502 where the rectangular conductor 8 is bent about 90 °. As shown in FIG. 2, at the original position 501, the first wall surface 32 in the inner bent convex portion 3 and the opposite wall surface 41 in the outer opposed convex portion 4 face each other, and the first wall surface 32 in the inner bent convex portion 3. And the bent wall surface 61 of the outer bent convex portion 6 face each other, and a conductor arrangement gap C is formed between the first wall surface 32, the opposed wall surface 41, and the bent wall surface 61. As shown in FIG. 4, at the bent position 502, the first wall surface 32 in the inner bent convex portion 3 and the opposed wall surface 41 in the outer opposed convex portion 4 remain facing each other, and the second wall surface in the inner bent convex portion 3. The wall surface 33 and the bent wall surface 61 of the outer bent convex portion 6 face each other to form a state where the rectangular conductor 8 is bent.

  As shown in FIG. 7, the rectangular wire conductor 8 of this example is a magnet wire used for the stator 7 of the three-phase rotating electrical machine. The rectangular conductor 8 bent by the rectangular conductor bending jig 1 of this example constitutes a wave winding coil 72 that makes a round in the circumferential direction of the stator core 71, and a plurality of three-phase wave winding coils 72 in the stator core 71 are formed. Are distributed in the slots 711. In the three-phase coil 72 of this example, the coil end portion 721 disposed outside the axial end face of the stator core 71 (outside the slot 711) is bent radially outward on one axial side L1 of the stator core 71. On the other hand, the other axial side L2 of the stator core 71 is bent radially inward.

  Then, as shown in FIG. 8, the stator core 71 is disposed on one jig 75, the three-phase coil 72 is disposed on the holding jig 76, and the other axial direction of the plurality of slots 711 of the stator core 71 is arranged. Inserted from the axial direction L of the slot 711 with the coil end portion 721 on the side L2 as the head. At this time, since the width of the bent inner portion 81 (the inner peripheral surface 803 of the bent portion 80) of the rectangular conductor 8 is hardly widened, this portion does not interfere with the edge portion of the slot 711, and the above is smoothly performed. Insertion can be performed.

Next, a method of bending the rectangular conductor 8 with the rectangular conductor bending jig 1 will be described.
As shown in FIG. 2, the operator first forms a straight square line between the first wall surface 32 of the inner bent convex portion 3 of the first jig portion 2 and the opposing wall surface 41 of the outer opposing convex portion 4. The conductor 8 is disposed. Next, the second jig part 5 is arranged in the housing wall part 23 in the first jig part 2, the outer bent convex part 6 in the second jig part 5 is opposed to the rectangular conductor 8, and the first wall surface The conductor arrangement | positioning clearance gap C which has arrange | positioned the rectangular conductor 8 between 32, the opposing wall surface 41, and the bending wall surface 61 is formed. Then, the lid portion 25 is attached to the housing wall portion 23, and the rectangular conductor 8 is placed between the first guide surface 21 in the first jig portion 2 and the second guide surface 51 in the second jig portion 5. Form the arranged state.
The rectangular conductor 8 is inserted through the notch 232 and the insertion hole 233 in the rectangular conductor bending jig 1 in a state where the first jig part 2 and the second jig part 5 are combined. It can also be arranged.

  Next, as shown in FIG. 4, the operator grasps the handle 234 in the first jig part 2 and the handle 52 in the second jig part 5, and the second jig part with respect to the first jig part 2. 5 is relatively rotated. At this time, the bent wall surface 61 of the outer bent convex portion 6 contacts the outer surface 804 of the rectangular conductor 8, and the corner portion 31 of the inner bent convex portion 3 contacts the inner surface 803 of the rectangular conductor 8. While receiving the load by the outer facing convex portion 4, the rectangular conductor 8 is bent with the corner portion 31 as the bending start point.

  In the rectangular conductor bending jig 1 of the present example, the first guide surface 21 in the first jig portion 2 has one side surface 801 of the bent portion of the rectangular conductor 8 in the entire bending process. The second guide surface 51 in the second jig portion 5 restrains the other side surface 802 of the bent portion of the rectangular conductor 8. Accordingly, as shown in FIG. 6, the bent inner portion 81 (the inner side surface 803 of the bent portion 80) of the rectangular conductor 8 is subjected to a compressive load, but a pair of side directions (one side 801 and the other side). In the direction 802), the increase in width is suppressed. It should be noted that the width of the bent inner portion 81 of the rectangular conductor 8 becomes wider within the range of the bending space S.

  When the operator rotates the second jig part 5 relative to the first jig part 2 to the bending position 502, the first wall surface 32 of the inner bending convex part 3 faces the outside. Between the second wall surface 33 of the inner bent convex portion 3 and the bent wall surface 61 of the outer bent convex portion 6 while the rectangular conductor 8 is disposed between the opposing wall surface 41 of the convex portion 4, The square wire conductor 8 is disposed, and the square wire conductor 8 is bent at approximately 90 °.

Therefore, according to the rectangular conductor bending jig 1 of this example, the width of the bent portion 80 of the rectangular conductor 8 is prevented from being widened in the direction of the pair of side surfaces 801 and 802, and the rectangular conductor 8 It is possible to eliminate the need for corrective processing.
The rectangular conductor bending jig 1 can be configured to rotate the second jig part 5 relative to the first jig part 2 by controlling various actuators.

DESCRIPTION OF SYMBOLS 1 Square wire conductor bending jig 2 1st jig part 21 1st guide surface 3 Inner bending convex part 31 Corner | angular part 32 1st wall surface 33 2nd wall surface 4 Outer opposing convex part 41 Opposite wall surface 5 2nd jig part 501 Original position 502 Bending position 51 Second guide surface 6 Outer bending convex portion 61 Bending wall surface 8 Rectangular conductor 80 Bending portion 81 Bending inner portion 801 One side surface 802 Other side surface 803 Inner side surface 804 Outer side surface S Bending Space C Conductor placement gap

Claims (5)

A jig used for bending a rectangular conductor having a substantially rectangular cross section formed by forming an insulating coating layer on the surface of a metal conductor layer,
A first jig portion provided with a first guide surface facing one side surface of the rectangular wire conductor; and a second jig portion provided with a second guide surface facing the other side surface of the rectangular wire conductor. The first jig portion and the second jig portion between the first guide surface and the second guide surface in a state where the second jig portion and the first jig portion are combined. Forming a bending space for sandwiching the rectangular conductor in a slidable state,
When bending the rectangular conductor, the first guide surface constrains one side surface of the bent portion of the rectangular conductor, and the second guide surface is the other side surface of the bent portion of the rectangular conductor. A rectangular conductor bending jig, characterized in that it is configured to restrain the wire. In Claim 1, in said 1st jig part, the inner side bending convex part which protrudes from said 1st guide surface within the range of the width of said bending space, and faces the inner side of said square wire conductor, An outer-facing convex portion that protrudes from the first guide surface within the range of the width of the bending space and faces the outer surface of the rectangular conductor is provided, and the corner portion of the inner bent convex portion is: Forms a bending start point when bending the rectangular conductor,
The second jig part is rotatable relative to the first jig part around the bending start point,
The second jig portion is provided with an outer bending convex portion that protrudes from the second guide surface and faces the outer surface of the rectangular conductor within the width of the bending space. The bent convex portion faces the outer surface of the rectangular wire conductor and bends the rectangular conductor when the second jig portion is rotated relative to the first jig portion. A rectangular conductor bending jig characterized by being configured.   In claim 2, the second jig portion is configured such that the first wall surface in the inner bent convex portion, the opposite wall surface in the outer opposed convex portion, and the bent wall surface in the outer bent convex portion are opposed to each other. A second position adjacent to the first wall surface at a predetermined angle in the inner bent convex portion with the original position where the conductor arrangement gap is formed between the first wall surface and the opposed wall surface facing each other. The wall surface and the bent wall surface are opposed to each other and can be rotated relative to the first jig portion at a bent position that forms a state where the rectangular conductor is bent. Square wire conductor bending jig.   4. The rectangular conductor bending jig according to claim 2, wherein the inner bending convex portion is detachable from the first guide surface of the first jig portion.   5. The rectangular wire bending jig according to claim 1, wherein the rectangular wire conductor is a magnet wire used for a stator of a rotating electrical machine.

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