JP7247759B2 - Rotor manufacturing equipment - Google Patents

Description

The present invention relates to a rotor manufacturing apparatus.

2. Description of the Related Art Conventionally, an SPM (Surface Permanent Magnet) motor is known that has a rotor in which a plurality of permanent magnets are provided on the outer periphery of a rotor core (see, for example, Patent Document 1). Such an SPM motor is provided with a cylindrical holding member that covers the outer periphery of the permanent magnets in order to prevent the permanent magnets from falling off from the rotor core due to centrifugal force.

Such a holding member is formed by a filament winding method. In the filament winding method, a fiber bundle made of carbon fibers is impregnated with a thermosetting resin, and the fiber bundle is wound around the outer periphery of a permanent magnet. Then, the holding member is formed by thermosetting the thermosetting resin.

JP 2017-195695 A

By the way, if the number of rotations of the rotor is increased or the size of the permanent magnet is increased in order to increase the output of the motor, the centrifugal force acting on the permanent magnet will increase, so it will be necessary to increase the strength of the holding member. However, as described above, the holding member made of carbon fibers has excellent tensile strength because the circumferential direction of the holding member coincides with the extending direction of the carbon fibers. On the other hand, there is a problem that the tensile strength in the radial direction of the holding member is inferior to that in the circumferential direction, that is, the extending direction of the carbon fibers.

SUMMARY OF THE INVENTION An object of the present invention is to provide a rotor manufacturing apparatus capable of improving the tensile strength of a holding member in the radial direction.

A rotor manufacturing apparatus for achieving the above object comprises a rotor body, a plurality of permanent magnets provided on the outer peripheral surface of the rotor body, a fiber bundle having carbon fibers, and a thermosetting magnet impregnated in the fiber bundle. a holding member that contains resin and holds the plurality of permanent magnets by being wound around the outer periphery of the plurality of permanent magnets, and is applied to both sides in the axial direction of the rotor body. and a pair of support portions that rotatably support the pair of engagement members, and each of the support portions is moved along the axial direction. and a second drive unit fixed to the first drive unit and configured to rotate one of the pair of engaging members about the axis of the rotor body to rotate the rotor body. One of the side portion and the engaging member engaged with the side portion has a regular polygonal cross section centered on the axis and protrudes toward the other along the direction of the axis. A convex portion is formed, and the other has a plurality of planar inner surfaces along the plurality of planar outer surfaces constituting the outer peripheral surface of the convex portion, and a concave portion into which the convex portion is loosely fitted. is formed.

According to this configuration, the rotor body is moved along the coaxial direction by moving the support parts along the axial direction of the rotor body by the first driving part. In addition, the rotor body is rotated by rotating one of the engaging members about the axis of the rotor body by the second driving portion. Thereby, the fiber bundle is wound around the outer periphery of each permanent magnet.

Here, for example, in the case of a configuration in which a pair of holding portions are provided to hold each side portion of the rotor body from the outer peripheral side, and the fiber bundle is wound around the rotor body by rotating the pair of holding portions, each holding portion When each side is clamped, the degree of clamping by each clamp may differ on each side. In this case, the rotor main body may become eccentric due to the axial centers of the one side portion and the other side portion being shifted from each other.

In this regard, according to the above configuration, by rotating either one of the pair of engaging members by the second driving section, the rotor can be rotated in a state where each side portion and each engaging member are engaged with each other in a concave-convex relationship. The body rotates. Here, since the convex portion having a regular polygonal cross section is loosely fitted in the concave portion having a plurality of inner surfaces along the plurality of outer surfaces constituting the outer peripheral surface of the convex portion, each side portion and each engaging member By engaging with , the attitude of the rotor body is naturally determined. Therefore, the eccentricity of the rotor body can be suppressed. As a result, it is possible to prevent the attitude of the fiber bundle wound around the rotor body from varying depending on the circumferential position of the rotor body. Therefore, the content of fiber bundles in the holding member can be increased. Therefore, the tensile strength in the radial direction of the holding member can be improved.

According to the present invention, it is possible to improve the tensile strength in the radial direction of the holding member of the rotor.

1 is a perspective view showing the configuration of a rotor in an embodiment of a rotor manufacturing apparatus; FIG. FIG. 2 is a cross-sectional view taken along line 2-2 of FIG. 1; Schematic which shows the structure of the manufacturing apparatus of the rotor of the same embodiment. The top view which shows the winding apparatus of the same embodiment. FIG. 5 is a cross-sectional view taken along line 5-5 of FIG. 4; FIG. 6 is a view corresponding to FIG. 5 and is a cross-sectional view showing a state in which the concave portion and the convex portion are engaged; The enlarged view which expands and shows the A section of FIG. FIG. 5 is a cross-sectional view taken along line 8-8 of FIG. 4; FIG. 5 is a diagram showing the winding device of the same embodiment, and is a plan view showing a state in which the driving table has moved along the axial direction from the state shown in FIG. 4 ; Sectional drawing which shows the recessed part and convex part of a 1st modification. The perspective view which shows the recessed part and convex part of a 2nd modification.

An embodiment of a rotor manufacturing apparatus will be described below with reference to FIGS. 1 to 9. FIG.
First, with reference to FIGS. 1 and 2, a rotor 10 manufactured by a rotor manufacturing apparatus (hereinafter referred to as manufacturing apparatus 100) of the present embodiment will be described.

As shown in FIGS. 1 and 2, the rotor 10 includes a shaft 20 as a rotating shaft, a plurality of (12 in this embodiment) permanent magnets 30 provided on the outer peripheral surface of the shaft 20, and each permanent magnet 30 and a cylindrical holding member 40 that is provided on the outer circumference of each permanent magnet 30 and holds the outer circumference of each permanent magnet 30 . It should be noted that the shaft 20 is an example of a rotor body.

The shaft 20 has a cylindrical body portion 21 in which the permanent magnets 30 are arranged, and side portions 22 formed on both sides in the axial direction along the axis C of the body portion 21 . In addition, henceforth, the axial direction along the axis C is only called an axial direction.

Each side portion 22 is composed of an enlarged diameter portion 23 having a larger diameter than the body portion 21 and a convex portion 24 protruding from the enlarged diameter portion 23 along the axial direction. The expanded diameter portion 23 is a portion provided with a bearing (not shown) for rotatably supporting the rotor 10 .

The convex portion 24 has a regular polygonal cross section centered on the axis C. As shown in FIG. The cross-sectional shape of the convex portion 24 of the present embodiment is a regular hexagon formed by six planar outer surfaces 24a. The outer peripheral edge of the convex portion 24 is located outside the outer peripheral edge of the enlarged diameter portion 23 in the direction perpendicular to the axial direction.

As shown in FIG. 2, each permanent magnet 30 has an arcuate cross-sectional shape perpendicular to the axis C with the axis C as the center. Each permanent magnet 30 is arranged on the outer circumference of the main body portion 21 of the shaft 20, thereby forming a substantially cylindrical shape as a whole. 1, 4, and 9, illustration of boundaries between the permanent magnets 30 is omitted.

The holding member 40 is formed by winding the fiber bundle 50 around the perimeter of each permanent magnet 30, impregnating it with a thermosetting resin 60 (see FIG. 3), and thermosetting the resin 60. As shown in FIG. The fiber bundle 50 is constructed by arranging filaments made of several thousand to several tens of thousands of carbon fibers in one direction. The thermosetting resin 60 of this embodiment is an epoxy resin.

The outer peripheral surface of the holding member 40 is substantially flush with the outer peripheral surface of the enlarged diameter portion 23 . Therefore, the outer peripheral edge of the protrusion 24 is located outside the outer peripheral edge of the holding member 40 in the direction orthogonal to the axial direction.

Next, the manufacturing apparatus 100 will be described.
As shown in FIG. 3, the manufacturing apparatus 100 includes a bobbin 110 around which the fiber bundle 50 is wound, a tension measuring device 120 that measures the tension of the fiber bundle 50, and a resin tank 130 that impregnates the fiber bundle 50 with the resin 60. , and a winding device 160 for winding the fiber bundle 50 around the outer periphery of each permanent magnet 30 provided on the shaft 20 . A regulating roller 140 that regulates the vertical position of the fiber bundle 50 supplied to the winding device 160 is provided downstream of the tension measuring device 120 in the supply direction of the fiber bundle 50 . A guide portion 150 that guides the fiber bundle 50 at a predetermined angle with respect to the shaft 20 is provided between the regulating roller 140 and the winding device 160 in the supply direction of the fiber bundle 50 . Hereinafter, the upstream side and the downstream side in the supply direction of the fiber bundle 50 are simply referred to as the upstream side and the downstream side.

Each configuration of the manufacturing apparatus 100 will be described in detail below.
<Bobbin 110>
As shown in FIG. 3, the bobbin 110 is connected to a brake device (not shown) such as a powder brake, and is configured to rotate when the fiber bundle 50 is pulled out with a predetermined tension or more. there is In this embodiment, the direction of rotation of the bobbin 110 when the fiber bundle 50 is pulled out is the clockwise direction in FIG. Therefore, the fiber bundle 50 is pulled out from above the bobbin 110 .

<Tension measuring device 120>
As shown in FIG. 3, the tension measuring device 120 includes a first roller 121 that lifts upward the fiber bundle 50 pulled out from the bobbin 110, and a pair of second rollers arranged upstream and downstream of the first roller 121. and a roller 122 .

A load cell (not shown) is connected to the first roller 121 . Thereby, the tension of the fiber bundle 50 is measured. In this embodiment, the result of measurement by the tension measuring device 120, that is, the value of the tension of the fiber bundle 50 is fed back to the brake device connected to the bobbin 110, thereby keeping the tension of the fiber bundle 50 constant. The brake device is controlled so that

<Resin tank 130>
A thermosetting resin 60 is stored in the resin tank 130 . A portion of the second roller 122 on the downstream side in the circumferential direction is positioned in the resin bath 130 . The fiber bundle 50 is thereby guided into the resin tank 130 . The resin 60 is impregnated into the fiber bundle 50 by passing the fiber bundle 50 through the resin bath 130 .

<Winding device 160>
As shown in FIG. 4, the winding device 160 includes a first drive unit 170 that reciprocates the shaft 20 provided with each permanent magnet 30 along the axial direction, and a first drive unit 170 that rotates the shaft 20 about the axis C. 2 drive unit 180 . The fiber bundle 50 is wound around the outer periphery of each permanent magnet 30 by reciprocating the shaft 20 along the axial direction and rotating about the axis C by the first driving section 170 and the second driving section 180 .

The first drive unit 170 includes a drive table 172 that is reciprocally movable along the axial direction by a direct-acting actuator 171 .
A pair of support portions 173 are detachably provided on the upper surface of the drive table 172, the support portions 173 being spaced apart from each other in the axial direction. Each supporting portion 173 is provided with an engaging member 174 rotatable about the axis C that engages with each convex portion 24 of the shaft 20 in a concave-convex relationship. Each engaging member 174 has a substantially cylindrical shape.

As the drive table 172 reciprocates along the axial direction, each supporting portion 173 and each engaging member 174 reciprocates along the axial direction.
The second driving portion 180 is connected to the engaging member 174 on one side in the axial direction. Hereinafter, of the pair of engaging members 174, the engaging member to which the second driving portion 180 is connected is referred to as an engaging member 174A, and the other engaging member is referred to as an engaging member 174B.

The second driving section 180 has a motor 181 fixed to the upper surface of the driving table 172, and a coupling 182 connecting the output shaft of the motor 181 and the engaging member 174A. Therefore, when the motor 181 rotates, the engagement member 174A rotates.

As shown in FIGS. 4 and 5, the facing surface 175 of each engaging member 174 facing the convex portion 24 of the shaft 20 has six planar inner surfaces 176a along the outer surfaces 24a of the convex portion 24. A concave portion 176 is also formed in which the convex portion 24 is loosely fitted. 5 is a cross-sectional view showing the recess 176 of the engaging member 174B and the projection 24 loosely fitted into the recess 176. As shown in FIG. 5 to 7, hatching is omitted.

As shown in FIG. 5, at corners formed by adjacent inner surfaces 176a of the recessed portion 176, relief portions 177 recessed toward the outer peripheral side are formed. A cross-sectional shape of the relief portion 177 perpendicular to the axial direction is substantially semicircular.

As shown in FIGS. 6 and 7, by rotating the engaging member 174A, the concave portion 176 of the engaging member 174A is engaged with the convex portion 24 loosely fitted in the concave portion 176, and the engaging member 174B is rotated. and the convex portion 24 loosely fitted in the concave portion 176 are engaged with each other. More specifically, each concave portion 176 and each convex portion 24 are engaged at the front portion of each engaging member 174 in the rotational direction. At this time, each corner 25 formed by the adjacent outer surfaces 24 a of the convex portion 24 is relieved by each relief portion 177 .

As described above, the torque of the motor 181 is transmitted to the shaft 20 via the engagement member 174, thereby rotating the shaft 20. As shown in FIG. The direction of rotation of the motor 181, that is, the direction of rotation of the shaft 20 is the counterclockwise direction in FIG. Therefore, the fiber bundle 50 is wound around the shaft 20 from below.

As shown in FIG. 4, on the upper surface of the driving table 172 of the first driving section 170, a pair of holding sections 190 are provided to slide and hold the surfaces of the enlarged diameter sections 23 of the rotating shaft 20. . Each pressing portion 190 is provided on the side to which the fiber bundle 50 is supplied to the shaft 20 , that is, on the upstream side of the shaft 20 .

As shown in FIG. 8, each pressing portion 190 includes a pair of support plates 191 fixed to the upper surface of the drive table 172 at intervals in the axial direction, and a pair of support plates 191 spaced from each other in the vertical direction between the support plates 191 . and a pair of shaft portions 192 arranged side by side and extending along the axial direction. A slide roller 193 is rotatably provided on each shaft portion 192 .

When the shaft 20 rotates, each enlarged diameter portion 23 is pressed against each sliding roller 193 by the tension of the fiber bundle 50 . Therefore, each sliding roller 193 rotates as the shaft 20 rotates.

<Guiding unit 150>
As shown in FIG. 4, the guide portion 150 has a base portion 151, a shaft portion 152 extending upward from the base portion 151, and a guide roller 153 provided rotatably with respect to the shaft portion 152. ing. The outer surface of the guide roller 153 is in contact with the fiber bundle 50 fed toward the shaft 20 . Thereby, the extending direction of the fiber bundle 50 is changed between the upstream side and the downstream side of the guide roller 153 .

As shown in FIG. 9, when the shaft 20 is axially moved by the first drive portion 170, the guide portion 150 does not move. Therefore, the fiber bundle 50 is guided at a predetermined angle with respect to the shaft 20 regardless of its position in the axial direction of the shaft 20 .

Next, a method for manufacturing the rotor 10 by the manufacturing apparatus 100 will be described.
First, the shaft 20 provided with each permanent magnet 30 is placed on the drive table 172 of the winding device 160 . More specifically, each convex portion 24 of the shaft 20 is loosely fitted into the concave portion 176 of each engaging member 174 .

Next, the fiber bundle 50 is pulled out from the bobbin 110, and the end of the fiber bundle 50 is fixed to the outer peripheral surface of the permanent magnet 30 with an adhesive or the like.
Next, the drive table 172 is reciprocated along the axial direction and the motor 181 is rotated, that is, the shaft 20 is reciprocated along the axial direction and rotated around the axis C. As a result, the fiber bundle 50 is wound around the outer periphery of each permanent magnet 30, and multiple layers of the fiber bundle 50 are laminated. In this embodiment, the layers of the fiber bundles 50 are laminated until the outer peripheral surface of the holding member 40 is substantially flush with the outer peripheral surface of the enlarged diameter portion 23 .

Here, since the fiber bundle 50 passes through the resin tank 130 in which the resin 60 is stored, the fiber bundle 50 impregnated with the resin 60 is wound around the outer peripheral surface of each permanent magnet 30 .
Next, the shaft 20 around which the fiber bundle 50 is wound is housed in a heating furnace (not shown) to thermally cure the resin 60 . Thereby, the holding member 40 is formed.

Thus, the rotor 10 is manufactured.
The operation of this embodiment will be described.
By rotating the engaging member 174A by the motor 181, the shaft 20 rotates in a state in which the convex portions 24 and the concave portions 176 are engaged with each other in a concave-convex relationship. Here, since the convex portion 24 having a regular polygonal cross section is loosely fitted in the concave portion 176 having a plurality of inner surfaces 176a along the plurality of outer surfaces 24a constituting the outer peripheral surface of the convex portion 24, each convex portion 24 and each concave portion 176 are engaged, the posture of the shaft 20 is automatically determined. Therefore, eccentricity of the shaft 20 can be suppressed. Accordingly, it is possible to suppress variations in the attitude of the fiber bundle 50 wound around the shaft 20 depending on the position of the shaft 20 in the circumferential direction. Therefore, the content of the fiber bundles 50 in the holding member 40 can be increased.

Effects of the present embodiment will be described.
(1) The first drive portion 170 has a pair of support portions 173 that rotatably support a pair of engagement members 174 that engage with the side portions 22 of the shaft 20 in a concave-convex relationship. Each support portion 173 is moved along the . The second driving portion 180 is fixed to the first driving portion 170 and rotates the shaft 20 by rotating one of the pair of engaging members 174, 174A, about the axis C of the shaft. Each side portion 22 is formed with a convex portion 24 having a regular polygonal cross section centered on the axis C and protruding toward each engaging member 174 along the axial direction. Each engaging member 174 has a plurality of planar inner surfaces 176a along the plurality of planar outer surfaces 24a forming the outer peripheral surface of the projection 24, and a recess 176 in which the projection 24 is loosely fitted is formed. It is

According to such a configuration, the shaft 20 moves along the axial direction by moving the supporting portions 173 along the axial direction of the shaft 20 by the first driving portion 170 . In addition, the shaft 20 is rotated by rotating the engaging member 174A around the axis C of the shaft 20 by the second driving portion 180 . Thereby, the fiber bundle 50 is wound around the outer circumference of each permanent magnet 30 .

Here, for example, in the case of a configuration in which a pair of holding portions that hold each side portion 22 of the shaft 20 from the outer peripheral side is provided, and the fiber bundle 50 is wound around the shaft 20 by rotating the pair of holding portions, each holding portion When each side portion 22 is pinched by the portion, the degree of pinching by each pinching portion may differ in each side portion 22 . In this case, the axial centers of the one side portion 22 and the other side portion 22 may deviate from each other, causing the shaft 20 to become eccentric.

In this respect, according to the above configuration, the tensile strength in the radial direction about the axis C of the holding member 40 can be improved because of the above effect.
(2) In the direction orthogonal to the axial direction, the outer peripheral edge of the projection 24 is located outside the outer peripheral edge of the holding member 40 .

According to such a configuration, since the outer peripheral edge of the projection 24 is located outside the outer peripheral edge of the holding member 40 in the direction orthogonal to the axial direction, the engaging portion between the recess 176 and the projection 24 is held. It is located outside the outer peripheral edge of the member 40 . Therefore, when the torque is transmitted to the shaft 20 by the second driving portion 180, the external force acting on the convex portion 24 via the engaging member 174 can be reduced. This makes it easier to increase the torque to be transmitted to the shaft 20 , so it becomes easier to increase the tension of the fiber bundle 50 . Thereby, the content of the fiber bundles 50 in the holding member 40 can be further increased.

(3) Each pressing part 190 is fixed to the first driving part 170 upstream of the shaft 20 and slides on the surface of the rotating enlarged diameter part 23 to press it.
According to such a configuration, each enlarged diameter portion 23 of the shaft 20 is supported by each pressing portion 190 when the shaft 20 rotates. As a result, portions of the shaft 20 on both sides of the body portion 21 around which the fiber bundle 50 is wound are supported. As a result, the bending deformation of the shaft 20 due to the tension of the fiber bundle 50 is suppressed, and the eccentricity of the shaft can be suppressed. Therefore, it is possible to further suppress variation in the orientation of the fiber bundle 50 wound around the shaft 20 depending on the position of the shaft 20 in the circumferential direction.

(4) Each of the corners formed by the mutually adjacent inner surfaces 176a of the concave portion 176 is recessed toward the outer peripheral side, and the corners 25 formed by the mutually adjacent outer surfaces 24a of the convex portion 24 are relieved. A relief portion 177 is formed.

Since the engagement between the concave portion 176 and the convex portion 24 causes stress concentration at the corner portion 25 of the convex portion 24, the corner portion 25 may be plastically deformed. In this case, the inner surface 176a of the concave portion 176 and the outer surface 24a of the convex portion 24 may slip, and the engagement state between the concave portion 176 and the convex portion 24 may not be properly maintained.

In this respect, according to the above configuration, since the relief portions 177 are formed at the corners of the recesses 176, it is possible to prevent the corners of the recesses 176 and the corners 25 of the projections 24 from interfering with each other. Therefore, the engagement state between the concave portion 176 and the convex portion 24 is easily maintained.

(5) The guide part 150 guides the fiber bundle 50 at a predetermined angle with respect to the shaft 20 by coming into contact with the fiber bundle 50 supplied toward the shaft 20 .
According to such a configuration, the guide portion 150 guides the fiber bundle 50 at a predetermined angle with respect to the shaft 20 . Therefore, it is possible to further suppress variations in the attitude of the fiber bundle 50 wound around the shaft 20 depending on the position of the shaft 20 in the circumferential direction.

This embodiment can be implemented with the following modifications. This embodiment and the following modified examples can be implemented in combination with each other within a technically consistent range. In addition, in the first modification and the second modification respectively shown in FIGS. 10 and 11 below, the same configurations as in the above embodiment are denoted by the same reference numerals, and the corresponding configurations are denoted by "100" and "100". Duplicate description is omitted by assigning the reference numerals obtained by adding "200" to each.

- The tension measuring device 120 does not have to feed back the measurement result to the braking device.
- The number of permanent magnets 30 can be changed as appropriate.
- The number of layers of the fiber bundles 50 forming the holding member 40 can be changed as appropriate.

- The rotor 10 may have a shaft extending axially from the side 22 . In this case, an insertion hole through which the shaft portion is inserted may be formed in the bottom portion of the concave portion 176 of the engaging member 174 .

- By changing the position of the guide part 150, the predetermined angle of the fiber bundle 50 supplied toward the shaft 20 with respect to the shaft 20 can be changed as appropriate.
- The guide part 150 can also be omitted.

- The number and shape of the escape portions 177 can be changed as appropriate.
- As shown in FIG. 10, an engaging member 274 having a concave portion 276 without a relief portion may be employed.

- The sliding roller 193 of the pressing portion 190 does not have to rotate with the rotation of the shaft 20 .
- The holding part 190 can be omitted.

- The outer peripheral edge of the projection 24 may be located inside the outer peripheral edge of the holding member 40 in the direction perpendicular to the axial direction.
- Although the cross-sectional shape of the convex part 24 in this embodiment was a regular hexagon, the cross-sectional shape of the convex part 24 may be a regular polygon, for example, a regular quadrangle or a regular octagon.

・As shown in FIG. 11, the shaft 220 is rotated by engaging the concave portion 376 formed in the side portion 222 composed only of the enlarged diameter portion 223 with the convex portion 224 formed in the engaging member 374. You can let it run. According to this configuration, it is possible to suppress an increase in physical size in the axial direction of shaft 220 .

- The resin 60 is not limited to an epoxy resin as long as it is a thermosetting resin. Alternatively, for example, a phenolic resin may be used.
- The scope of application of the present invention is not limited to the one in which the rotor body is constituted by the shaft 20 . Alternatively, for example, the present invention can also be applied to a rotor having a rotor body composed of a shaft and a rotor core provided on the outer circumference of the shaft. In this case, a plurality of permanent magnets 30 are provided on the outer circumference of the rotor core, and a holding member 40 is provided on the outer circumference of each permanent magnet 30 .

DESCRIPTION OF SYMBOLS 10... Rotor 20... Shaft 21... Body part 22... Side part 23... Expanded diameter part 24... Convex part 24a... Outer surface 25... Corner part 30... Permanent magnet 40... Holding member 50... DESCRIPTION OF SYMBOLS Fiber bundle 60... Resin 100... Manufacturing apparatus 110... Bobbin 120... Tension measuring device 121... First roller 122... Second roller 130... Resin tank 140... Regulating roller 150... Guiding part 151 Base part 152 Shaft part 153 Guide roller 160 Winding device 170 First drive part 171 Actuator 172 Drive table 173 Support part 174 Engagement member 174A Engagement Member 174B Engagement member 175 Opposing surface 176 Recessed portion 176a Inner surface 177 Relief portion 180 Second driving portion 181 Motor 182 Coupling 190 Holding portion 191 Support Plate 192 Shaft 193 Sliding roller 220 Shaft 222 Side portion 223 Expanded diameter portion 224 Convex portion 274 Engagement member 276 Concave portion 276a Inner surface 374 Engagement Joint member, 376... recessed part.

Claims (6)

A rotor body having a columnar main body and side portions formed on both sides in the axial direction of the main body , a plurality of permanent magnets provided only on the outer peripheral surface of the main body , a fiber bundle having carbon fibers, and the A rotor manufacturing apparatus applied to a rotor comprising a holding member that contains a thermosetting resin impregnated in a fiber bundle and is wound only around the outer peripheries of the plurality of permanent magnets to hold the plurality of permanent magnets. and
a pair of engaging members that engage with both sides of the rotor body in the axial direction in a concave-convex relationship;
a first driving section having a pair of support sections that rotatably support the pair of engaging members, and for moving each of the support sections along the axial direction;
a second drive unit fixed to the first drive unit and configured to rotate the rotor body by rotating one of the pair of engaging members about the axis of the rotor body;
a pair of pressing portions fixed to the first driving portion on the side to which the fiber bundle is supplied to the rotor body rather than the rotor body, and pressing while sliding on the surface of each of the rotating side portions; , and
One of the side portion and the engaging member engaged with the side portion has a convex portion having a regular polygonal cross section centered on the axis and protruding toward the other along the direction of the axis. is formed and
The other has a plurality of planar inner surfaces along the plurality of planar outer surfaces constituting the outer peripheral surface of the protrusion, and is formed with a recess into which the protrusion is loosely fitted.
Rotor manufacturing equipment. It includes a rotor body, a plurality of permanent magnets provided on the outer peripheral surface of the rotor body, a fiber bundle having carbon fibers, and a thermosetting resin impregnated in the fiber bundle, and is wound around the outer periphery of the plurality of permanent magnets. A rotor manufacturing apparatus applied to a rotor comprising a holding member that holds the plurality of permanent magnets by
a pair of engaging members that engage with both sides of the rotor body in the axial direction in a concave-convex relationship;
a first driving section having a pair of support sections that rotatably support the pair of engaging members, and for moving each of the support sections along the axial direction;
a second drive unit that is fixed to the first drive unit and rotates the rotor body by rotating one of the pair of engagement members about the axis of the rotor body;
One of the side portion and the engaging member engaged with the side portion has a convex portion having a regular polygonal cross section centered on the axis and protruding toward the other along the direction of the axis. is formed and
The other is formed with a recess having a plurality of planar inner surfaces along the plurality of planar outer surfaces constituting the outer peripheral surface of the protrusion and into which the protrusion is loosely fitted ,
By rotating the engaging member, the plurality of outer surfaces and the plurality of inner surfaces are engaged with each other at the front side portion of the engaging member in the rotational direction, and the plurality of outer surfaces and the plurality of inner surfaces are engaged with each other. configured to be separated from each other on the rear side in the rotational direction,
Rotor manufacturing equipment. The convex portion is formed on the side portion,
The recess is formed in the engaging member,
In a direction orthogonal to the axial direction, an outer peripheral edge of the protrusion is located outside an outer peripheral edge of the holding member,
The rotor manufacturing apparatus according to claim 1 or 2 . A pair of pressing portions are fixed to the first driving portion on the side of the rotor body to which the fiber bundle is supplied from the rotor body, and slide and press on the surface of each of the rotating side portions. prepare
4. The apparatus for manufacturing a rotor according to claim 2 or 3 . Each of the corners formed by the inner surfaces adjacent to each other is recessed toward the outer peripheral side, and a relief portion for escaping each of the corners formed by the outer surfaces adjacent to each other is formed.
The rotor manufacturing apparatus according to any one of claims 1 to 4 . a guide portion that guides the fiber bundle at a predetermined angle with respect to the rotor main body by contacting the fiber bundle that is supplied toward the rotor main body;
The rotor manufacturing apparatus according to any one of claims 1 to 5 .

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