JP2021158870A - Separation device of lamination core - Google Patents

Abstract

To provide a separation device of a lamination core, capable of separating the lamination core to which a plurality of division cores are connected into an individual division core in one step.SOLUTION: A separation device 20 of a lamination core includes: a plurality of holding members 21 arranged in a circular pattern with a first shaft line C1 as a center; and a movement mechanism 25 moving the plurality of holding members 21 from an initial position to an operation position so as to be synchronized. The plurality of holding members 21 include a holding part 210 which can be held so as to prevent one of division cores 14 from relatively moving to each holding member 21. When the plurality of holding members 21 are moved to the operation position from the initial position, a distance in a peripheral direction of both of the holding parts 210 of the holding members 21 adjacent in the peripheral direction of a circle with the first shaft line C1 as the center becomes large, and both of the division cores 14 held by the holding parts 210 are structured so as to be separated.SELECTED DRAWING: Figure 3

Description

The present invention relates to a laminated core separating device for separating an annular laminated core having a plurality of divided cores into individual divided cores.

As an annular laminated core used for a stator of an electric motor, one having a configuration in which a plurality of divided cores are annularly connected is known. Further, the laminated core is formed by stacking a plurality of core pieces (referring to plate-shaped parts obtained by molding an electromagnetic steel plate into a predetermined shape). As a method for manufacturing a stator using such an annular laminated core, a plurality of core pieces are formed in a state of being arranged in an annular shape by a pressing device, and the core pieces arranged in an annular shape are laminated to form an annular laminated core. A method is known in which molding is performed, the annular laminated core is separated into individual divided cores, a conductor is wound around each separated divided core using a nozzle, and the divided core around which the conductor is wound is recombined in a ring shape. ing. According to the method using such a split core, the lead wire can be wound without the nozzle interfering with the teeth, so that no nozzle space remains in the product (the lead wire is also provided in the space corresponding to the conventional nozzle space). As a result, the linear density can be increased.

In Patent Document 1, as a method of separating the annular laminated core into individual divided cores, the radial center side of the divided surface is separated around the radial outer end of the connecting surface of the adjacent divided cores. The method of rotating to is disclosed. Patent Document 2 discloses a method of separating adjacent divided cores by pushing a joint portion between adjacent divided cores included in the annular laminated core from the outer side in the radial direction toward the center side in the radial direction.

However, with the separation method described in each of the patent documents, it is not possible to separate into one divided core in one step. Therefore, the step of separating the annular laminated core into individual divided cores must be performed a plurality of times, and as a result, the time required for this step becomes long. Further, a stacking core separating device is required for each process, which increases the equipment cost.

JP-A-2017-46499 WO2019 / 049486

(Problems to be solved by the invention)
The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a laminated core capable of separating an annular laminated core in which a plurality of divided cores are bonded into individual divided cores in one step. It is to provide a separation device.

(Means to solve problems)
In order to achieve the above object, the laminated core separating device (20) according to the present invention is used.
It is a stacking core separating device (20) that separates a circular laminated core (10) having a plurality of split cores (14) that are connected in a circle and can be separated in the circumferential direction into individual split cores (14). ,
A plurality of holding members (21) that are radially arranged around the first axis (C1) and move between the initial position and the operating position located at an outer diameter from the initial position.
It has a moving mechanism (25) that synchronizes with the plurality of holding members (21), moves the plurality of holding members (21) between the initial position and the operating position, and moves the plurality of holding members (21) radially from the initial position. death,
When the plurality of holding members (21) are located at the initial positions, the plurality of divided cores (13) are connected to each other to hold the laminated core (10).
When the plurality of holding members (21) are located at the operating positions, the holding portion (210) for holding the divided core (14) in a state of being individually separated from the laminated core (10) is provided. In this case, the moving mechanism (25) may be configured to be able to move the plurality of holding members (21) from the initial position to the operating position at the same speed and at the same timing.

When the present invention is configured in this way, the plurality of holding members (21) are synchronously moved from the initial position to the operating position, so that they are adjacent to each other in the circumferential direction of the circle centered on the first axis (C1). The distance between the holding portions (210) of the matching holding members (21) in the circumferential direction increases while the positions in the radial direction remain the same. Therefore, the divided cores (14) held by the holding portion (210) are separated from each other in the circumferential direction. In such separation between the adjacent split cores (14), the moving mechanism (25) synchronously moves the plurality of holding members (21) from the initial position to the operating position, so that the plurality of split cores (14) are separated from each other. It is done all at once. Therefore, it is not necessary to perform the step of separating the circular laminated core (10) into the split core (14) a plurality of times (not straddling the plurality of steps), so that the time required for this step can be shortened. Further, since it is not necessary to dispose the separating device of the circular laminated core (10) in each of the plurality of steps, the equipment cost can be reduced.

In the laminated core separating device (20) according to the present invention.
The moving mechanism (25) has a rod-shaped pressing member (26) and a driving unit (204) that linearly moves the pressing member (26) in the second axis (C2) direction.
The second axis (C2) is the center line of the pressing member (26) and is in the same direction as the first axis (C1).
A pressed surface (216) is provided at the end of each of the plurality of holding members (21) on the side close to the first axis (C1).
On the outer periphery of the pressing member (26), a plurality of the holding members (21) are formed when the pressing member (26) is moved in the second axis (C2) direction by the driving force of the driving unit (294). The same number of pressing surfaces (261) as the holding members (21) that push the plurality of holding members (21) from the initial position toward the operating position by contacting the pressed surfaces (216) provided on each of the above. ) May be provided. In this case, it is preferable that at least one of the pressed surface (216) and the pressing surface (261) is an inclined surface that is inclined with respect to the first axis (C1).

When the present invention is configured in this way, by moving the pressing member (26) in the second axis (C2) direction, each of the plurality of pressing surfaces (261) provided on the pressing member (26) is plural. Press the pressed surface (216) provided on each of the holding members (21), whereby the plurality of holding members (21) move from the initial position to the operating position. With such a configuration, the moving mechanism (25) for synchronously moving the plurality of holding members (21) can be made into a simple structure, so that the equipment cost can be reduced.

The laminated core separating device (20) according to the present invention further includes a pressurizing mechanism (air cylinder (22)) that pressurizes a plurality of holding members (21) toward the initial position side. May be good.

When the present invention is configured in this way, when each holding member (21) is moved from the initial position to the operating position by the pressing member (26), each holding member (21) is given toward the side of the initial position. By applying pressure, the accuracy of synchronization of movement of all the holding members (21) can be improved. That is, when the connection strength between the divided cores (14) included in the circular laminated core (10) is not uniform, the part of the holding member (21) is separated from the portion where the connecting strength is weak, and the remaining holding member (21) is the remaining holding member. It may move faster than (21). As a result, the positions of the holding members (21) in the radial direction are displaced from each other, and the split cores (14) adjacent to each other in the circumferential direction cannot be relatively moved only in the circumferential direction, so that the adjacent split cores (14) cannot be moved relative to each other. May not be separated. Therefore, when the present invention is configured in this way, a relative positional deviation between the holding members (21) in the radial direction occurs (a part of the holding members (21) is the remaining holding member (21)). (Move faster than) can be prevented. In other words, by providing the pressurization mechanism, all the holding members (21) can be more reliably linearly moved from the initial position to the operating position in synchronization at the same speed.

The laminated core separating device (20) according to the present invention has a support member (guide member (23)) that movably supports the plurality of holding members (21) between the initial position and the operating position. The tip portion (positioning convex portion (262)) of the pressing member (26) can be freely inserted and removed from the support member (guide member (23)) coaxially with the first axis (C1). When the tip portion (positioning convex portion (262)) of (26) is inserted, the first axis (C1) and the second of the pressing member (26) and the plurality of holding members (21) are inserted. A positioning hole (234) is provided to regulate the relative displacement in the direction perpendicular to the axis (C2) of the.
It may be configured as.

The laminated core separating device (20) according to the present invention is attached to a support member (guide member (23)) that movably supports a plurality of the holding members (21) between the initial position and the operating position. A first positioning member (24) provided with an annular first convex portion (first positioning portion (241)) coaxial with the first axis (C1).
It is coaxially attached to the pressing member (26), has an annular shape coaxial with the second axis (C2), and is inserted into the inner peripheral side of the first convex portion (first positioning portion (241)). And, the relative displacement of the pressing member (26) and the plurality of holding members (21) in the direction perpendicular to the first axis (C1) and the second axis (C2) is regulated. A second positioning member (27) provided with a second convex portion (second positioning portion (272)) and
It may be configured to further have.

When the present invention is configured in this way, the pressing member (26) and the holding member (21) are positioned (a state in which the first axis (C1) and the second axis (C2) coincide with each other). The holding member (21) can be moved from the initial position to the operating position. Therefore, it is possible to prevent or suppress non-uniform timing when the holding member (21) is pressed by the pressing member (26), and it is possible to prevent the holding members (21) from being displaced relative to each other in the radial direction.

The laminated core separating device (20) according to the present invention is a plate-shaped core included in the divided core (14) with respect to the divided core (14) held in the holding portion (210) of the holding member (21). It may be configured to further have a pressing mechanism (30) for applying a compressive force in the stacking direction of the pieces (13).

When the present invention is configured in this way, when the circular laminated core (10) is separated into the divided cores (14), the core piece (13) is used with respect to the laminated core (10) by the pressing mechanism (30). By applying a compressive force in the stacking direction of (plate-shaped parts made of electromagnetic steel sheets), the core pieces (13) are prevented from being separated from each other.

FIG. 1 is a diagram showing a configuration example of an annular core. FIG. 2 is a diagram showing a configuration example of a split core. FIG. 3 is a diagram showing a configuration example of the present implementation device. FIG. 4 is a diagram showing a configuration example of the holding member. FIG. 5 is a diagram showing a configuration example of a guide member and a first positioning member. FIG. 6 is a diagram showing an example of arrangement of holding members. FIG. 7 is a diagram showing a configuration example of the moving mechanism. FIG. 8 is a diagram showing an example of the operation of the present implementation device. FIG. 9 is a diagram showing an example of the operation of the present implementation device. FIG. 10 is a diagram showing an example of the operation of the present implementation device. FIG. 11 is a diagram showing an example of the operation of the present implementation device. FIG. 12 is a diagram showing an example of the operation of the present implementation device.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the following description, the laminated core separating device according to the embodiment of the present invention is referred to as "the present embodiment", and a circular laminated core (a laminated core in which a plurality of divided cores are connected in a circular shape) is referred to as "the present embodiment". Sometimes referred to as "annular core". This annular core is used for the stator of the motor.

FIG. 1 is a perspective view showing a configuration example of an annular core 10 to which the present implementation device 20 is applied. FIG. 2 is a perspective view showing a configuration example of the divided core 14 included in the annular core 10. As shown in FIG. 1, the annular core 10 has a cylindrical portion 11 having a substantially cylindrical shape, and a plurality of tooth portions 12 projecting from the cylindrical portion 11 toward the center side in the radial direction. The annular core 10 has a plurality of divided cores 14 that are arranged in a circle and are separably connected to each other. That is, the annular core 10 can be separated into a plurality of divided cores 14 having an outer peripheral portion 15 and one tooth portion 12 which are a part of the cylindrical portion 11 as shown in FIG. FIG. 1 shows an example in which the annular core 10 can be separated into 12 divided cores 14. Further, the annular core 10 can be formed by recombining the plurality of separated split cores 14.

The annular core 10 is manufactured by forming a connecting body in which plate-shaped core pieces 13 made of electromagnetic steel sheets are connected in a circular shape in the plane direction by a pressing device, and laminating the formed connecting bodies in the thickness direction. Will be done. Further, in the process of manufacturing the stator of the motor, a step of separating the manufactured annular cores 10 into individual split cores 14, a step of attaching an insulator to the separated individual split cores 14, and a step of attaching an insulator are attached. The step of winding the lead wire around the divided core 14 and the step of recombining the split core 14 around which the lead wire is wound are included. The executing device 20 is used in a step of separating the annular core 10 into a plurality of divided cores 14.

As shown in FIG. 2, one end of the outer peripheral portion 15 of each divided core 14 (specifically, one end in the circumferential direction of the cylindrical portion 11 in a state of being incorporated in a part of the annular core 10). Is provided with a connecting convex portion 16 and a connecting concave portion 17 is provided at an end portion on the opposite side. By inserting the connecting convex portion 16 of one split core 14 into the connecting recess 17 of the other split core 14, the split cores 14 can be connected to each other. Then, by connecting all the divided cores 14 to the adjacent divided cores 14, the divided cores 14 are arranged in a circle and connected to each other. The connecting convex portion 16 and the connecting concave portion 17 are formed by connecting the divided cores 14 connected to each other in the circumferential direction of the outer peripheral portion 15 (cylindrical portion 11). It has a shape that can be connected and separated by relatively moving in the direction of the tangent line at the connecting portion between the connecting convex portion 16 and the connecting concave portion 17 among the tangent lines of the circle composed of 15. For example, the connecting convex portion 16 is a rectangle that protrudes in the circumferential direction of the outer peripheral portion 15 (cylindrical portion 11) in the stacking direction view of the core piece 13, and the connecting concave portion 17 is the circumference of the outer peripheral portion 15 in the stacking direction view of the core piece 13. It is a rectangle that dents in the direction. However, the connecting convex portion 16 and the connecting concave portion 17 of the split core 14 may be connected and separated by being relatively moved in the circumferential direction of the outer peripheral portion 15 (cylindrical portion 11), and the specific configuration is particularly limited. It is not something that is done.

FIG. 3 is a perspective view showing a configuration example of the implementing device 20. As shown in FIG. 3, the present implementation device 20 includes a predetermined number of holding members 21 and an air cylinder 22 (specifically, the same number as the number of divided cores 14 included in the annular core 10 to be applied). It has a guide member 23 which is an example of a support member, a first positioning member 24, a moving mechanism 25, and a driving unit 204. The moving mechanism 25 has a pressing member 26, a second positioning member 27, and a second positioning member support mechanism 28. Further, in the present implementation device 20, as a frame for supporting each member, a lower frame 201, an upper frame 202 provided above the lower frame 201, and a plurality of columns 203 for supporting the upper frame 202 are provided. And have. In each figure, the upper side of the implementing device 20 is indicated by an arrow Up, and the lower side is indicated by an arrow Dw.

The holding member 21, the air cylinder 22, and the guide member 23 are attached to the upper surface side of the lower frame 201. As shown in FIG. 3, the holding member 21 and the air cylinder 22 are circular (centered on the first axis C1) along the circumferential direction of the circle centered on the first axis C1, which is a straight line parallel to the vertical direction. They are arranged side by side in a radial pattern. The moving mechanism 25 and the driving unit 204 are attached to the upper frame 202 and are located above the holding member 21. As shown in FIG. 3, the second axis C2, which is the center line of the pressing member 26 of the moving mechanism 25, is parallel in the vertical direction. Then, the first axis C1 and the second axis C2 substantially coincide with each other.

In the following description, unless otherwise specified, the "radial direction" refers to the radial direction of the circle centered on the first axis C1 in the axial direction of the first axis C1 and is referred to as the "circumferential direction". "" Refers to the circumferential direction of the circle centered on the first axis C1. Further, the "center side" is defined as the radial center side of the circle centered on the first axis C1, and the "outer circumference side" is defined as the radial outside of the circle centered on the first axis C1. It shall be.

FIG. 4 is a diagram showing a configuration example of each holding member 21. FIG. 5 is a diagram showing a configuration example of the guide member 23 and the relationship between the holding member 21 and the guide member 23. In FIG. 4, the arrow Cen indicates the central side, and the arrow Out indicates the outer peripheral side. As shown in FIGS. 4 and 5, the holding member 21 is a rod-shaped member, and is arranged so that one end in the elongated direction faces the center side and the other end faces the outer peripheral side.

As shown in FIG. 4, a holding portion 210 capable of holding one divided core 14 is provided in the vicinity of one end portion (center side end portion) of each holding member 21. The holding portion 210 faces the first holding surface 211 facing the center side, the second holding surface 212 facing the outer peripheral side, the third holding surface 213 facing one side in the circumferential direction, and the other side in the circumferential direction. It has a fourth holding surface 214 and a bottom surface 215 facing upward. The first holding surface 211 and the second holding surface 212 are separated from each other at a predetermined distance in the radial direction and face each other. In the present implementation device 20, the first holding surface 211 is located on the outer peripheral side, and the second holding surface 212 is located on the center side. The distance between the first holding surface 211 and the second holding surface 212 is substantially the same as or substantially the same as the radial dimension of the split core 14 (the dimension from the end surface of the tooth portion 12 on the protruding end side to the outer peripheral surface of the outer peripheral portion 15). Set to a larger dimension. The third holding surface 213 and the fourth holding surface 214 are located between the first holding surface 211 and the second holding surface 212 in the radial direction. The third holding surface 213 and the fourth holding surface 214 are separated from each other at a predetermined distance in the circumferential direction and face each other. The distance between the third holding surface 213 and the fourth holding surface 214 is set to be substantially the same as or larger than the circumferential dimension of the tooth portion 12.

According to the holding unit 210 having such a configuration, one divided core 14 can be held by accommodating one divided core 14 in the area surrounded by the first holding surface 211 to the fourth holding surface 214. Then, the first holding surface 211 contacts the outer peripheral surface of the outer peripheral portion 15 of the split core 14, and the second holding surface 212 contacts the inner peripheral surface (end surface of the tip in the protruding direction) of the teeth portion 12 of the split core 14. This restricts the radial movement of the split core 14. Further, by sandwiching the teeth portion 12 of the split core 14 between the third holding surface 213 and the fourth holding surface 214, the movement of the split core 14 in the circumferential direction is restricted.

The holding portion 210 is preferably configured so that the relative movement of the split core 14 with respect to the holding member 21 in the radial direction and the circumferential direction is as small as possible, and the radial direction and the circumferential direction of the split core 14 with respect to the holding member 21 are preferable. It is more preferable that the structure is such that relative movement is not possible. Therefore, the clearance between each of the first holding surfaces 211 to the fourth holding surfaces 214 and the outer peripheral surface of the split core 14 held by the holding portion 210 is as small as possible as long as the split core 14 can be inserted and removed from the holding portion 210. Is preferable. The specific dimensions of the first holding surfaces 211 to the fourth holding surfaces 214 are appropriately set according to the dimensions of the divided core 14 included in the annular core 10 to be applied.

At the central end of the holding member 21, a pressing surface 261 of the pressing member 26, which will be described later, and a pressed surface 216 that can be engaged with and detached from each other are provided. For example, as shown in FIG. 4, a part of the end surface on the center side of the holding member 21 is the pressed surface 216. However, the entire area of the end surface on the center side of the holding member 21 may be the pressed surface 216. The pressed surface 216 is a plane inclined with respect to the first axis C1 and faces diagonally upward. The pressed surface 216 is not limited to the above-mentioned flat surface, and when the pressed surface 261 is a cone, the pressed surface 216 may be a curved surface.

Each air cylinder 22 is an example of a pressurization mechanism. Each air cylinder 22 is arranged on the outer peripheral side of each holding member 21. Each air cylinder 22 is connected to each holding member 21, and is configured so that each holding member 21 can be pressurized (biased) toward the center side. Each air cylinder 22 is configured to be able to pressurize each holding member 21 with a force smaller than the force (force to move from the initial position to the operating position) received from the pressing member 26 described later by each holding member 21. There is. The configuration of the air cylinder 22 is not particularly limited, and various known configurations can be applied. In short, each air cylinder 22 may be configured so as to pressurize each holding member 21 toward the center side.

Then, as shown in FIG. 6, the plurality of holding members 21 and the air cylinder 22 are arranged so as to be arranged in a circular shape along the circumferential direction of the circle centered on the first axis C1. In other words, the plurality of holding members 21 and the air cylinder 22 are arranged at rotationally symmetrical positions about the first axis C1. In other words, in the direction of the first axis C1, the plurality of holding members 21 and the air cylinder 22 are arranged radially around the first axis C1. Therefore, the pressed surfaces 216 of the plurality of holding members 21 are also arranged in a circular shape in the circumferential direction.

Each holding member 21 can move linearly back and forth between the initial position and the operating position. As shown in FIG. 6, the initial position is the holding portion 210 of each holding member 21 without separating the annular core 10 into individual divided cores 14 (in other words, in a state where the divided cores 14 are connected to each other). Is a position where each divided core 14 can be held. The position of the end on the center side of the range in which the holding member 21 can reciprocate in a straight line can be applied to the initial position. Further, when each holding member 21 is located at the initial position, when the annular core 10 is held by the holding portion 210, the center line of the annular core 10 substantially coincides with the first axis C1. The operating position is a position on the same radial direction as the initial position and is a position on the outer peripheral side (radial outer side (outer diameter side) of the circle centered on the first axis C1) from the initial position. Since one end of the plurality of holding members 21 is arranged in an annular shape in a direction in which one end is located on the center side and the other end is located on the outer peripheral side, each holding member 21 is arranged from the initial position to the operating position (that is, the outer circumference). When moved to the side position), the distance between the holding portions 210 of the holding members 21 adjacent to each other in the circumferential direction increases in the circumferential direction. Therefore, the divided cores 14 held by the holding member 21 are separated from each other in the circumferential direction. That is, the annular core 10 is separated into individual divided cores 14.

The distance from the initial position to the operating position may be any distance as long as the divided cores 14 connected to each other can be separated from each other. This distance is appropriately set according to the dimensions of the connecting convex portion 16 and the connecting concave portion 17 provided on the split core 14, the angle formed by the loci of the linear movements of the holding members 21 adjacent to each other in the circumferential direction, and the like.

The guide member 23 can linearly move each holding member 21 in the radial direction, but guides each holding member 21 so as not to move in the circumferential direction. As shown in FIG. 5, the guide member 23 includes a base portion 231 and a predetermined number of guide convex portions 232 (the same number as the holding member 21) that protrude upward from the upper surface of the base portion 231 and are arranged at equal intervals in the circumferential direction. Have. The side surfaces (both end surfaces in the circumferential direction) of each guide convex portion 232 function as a guide surface 233 that guides each holding member 21 so as to be linearly movable in the radial direction. The guide surfaces 233 of the guide convex portions 232 adjacent to each other in the circumferential direction are opposed to each other and parallel to each other so that the holding member 21 can be linearly moved in the radial direction but not moved in the circumferential direction. Is. Then, a part of each holding member 21 is inserted between the guide convex portions 232 adjacent to each other in the circumferential direction (between the guide surfaces 233 facing each other). Therefore, each holding member 21 can move linearly in the radial direction by moving relative to the guide member 23 along the guide surface 233, but the movement in the circumferential direction is restricted.

The base portion 231 of the guide member 23 is provided with a positioning hole 234 for positioning the pressing member 26 and each holding member 21 (see FIG. 5). The positioning hole 234 is a hole into which the positioning convex portion 262 of the pressing member 26, which will be described later, can be inserted and removed. Further, the positioning hole 234 is coaxial with the first axis C1 and is located below the holding member 21. The "positioning of the pressing member 26 and each holding member 21" specifically means holding the first axis C1 and the second axis C2 in the same state. As described above, the first axis C1 and the second axis C2 are coincident with each other, but may be displaced due to an external force, a load, or the like. The pressing member 26 and each holding member 21 are prevented from being displaced, that is, the pressing member 26 and each holding member 21 are not displaced in a direction perpendicular to the first axis C1 and the second axis C2. 21 and are positioned.

A first positioning member 24 is attached to the upper side of the guide member 23. For example, the first positioning member 24 is fixed to the upper side of the guide convex portion 232 of the guide member 23 by a bolt or the like. The first positioning member 24 is a member having an annular shape and is arranged coaxially with the first axis C1. The first positioning member 24 is arranged above each holding member 21. By arranging the first positioning member 24 above each holding member 21, each holding member 21 is restricted from moving in the vertical direction (axial direction) by the first positioning member 24.

The first positioning member 24 is provided with a first positioning surface 242. The first positioning surface 242 is a surface for positioning the pressing member 26 and the holding member 21. The first positioning surface 242 is a circumferential surface coaxial with the first axis C1 and faces the center side. For example, the first positioning member 24 is provided with an annular first positioning portion 241 which is an example of the first convex portion and projects toward the upper side (the side of the moving mechanism 25), and the first positioning portion 241 is provided. The inner peripheral surface of the portion 241 becomes the first positioning surface 242. The first positioning surface 242 is provided on the upper side of the holding member 21 (the side closer to the moving mechanism 25 in the direction of the first axis C1).

Next, the moving mechanism 25 will be described. FIG. 7 is a diagram showing a configuration example of the moving mechanism 25. As shown in FIG. 7, the moving mechanism 25 has a pressing member 26, a second positioning member 27, and a predetermined number of pressing mechanisms 30 (the same number as the holding members 21). Then, the moving mechanism 25 linearly reciprocates in the axial direction (vertical direction) of the second axis C2 by the driving force generated by the driving unit 204 (see FIG. 3).

The pressing member 26 is a long rod-shaped member. On the outer circumference of the pressing member 26, the same number of pressing surfaces 261 as the holding member 21 are provided so as to be arranged in the circumferential direction of a circle centered on the second axis C2. Each pressing surface 261 is a surface for pushing each holding member 21 in contact with the pressed surface 216 of each holding member 21. Each pressing surface 261 is a plane inclined with respect to the second axis C2 and faces diagonally downward. For example, the pressing member 26 has an inverted weight trapezoidal portion having a polygonal cross section cut along a plane perpendicular to the second axis C2 direction and having a cross-sectional dimension that decreases toward the tip side (lower side). It is provided. Then, the side surface of the inverted weight trapezoidal portion becomes each pressing surface 261.

A positioning convex portion 262 is provided on the tip end portion of the pressing member 26 and below the pressing surface 261, and a sliding portion 263 is provided on the proximal end side (upper side) of the pressing surface 261. There is. The positioning convex portion 262 is a columnar portion coaxial with the second axis C2, and is configured to be insertable and removable in the positioning hole 234 provided in the guide member 23. Then, by inserting the positioning convex portion 262 of the pressing member 26 into the positioning hole 234 of the base portion 231, the pressing member 26 and each holding the pressing member 26 are held so that the second axis C2 and the first axis C1 coincide with each other. The member 21 is positioned, and the relative displacement of the pressing member 26 and each holding member 21 in the direction perpendicular to the first axis C1 and the second axis C2 is regulated. The sliding portion 263 is a columnar portion coaxial with the second axis C2, and is inserted through a through hole 271 of the second positioning member 27, which will be described later.

The second positioning member 27 has a function of positioning the pressing member 26 and each holding member 21. The second positioning member 27 is provided with a through hole 271 penetrating in the second axis C2 direction. The through hole 271 is a hole having a circular cross section coaxial with the second axis C2. A sliding portion 263 of the pressing member 26 is inserted through the through hole 271. Therefore, the pressing member 26 and the second positioning member 27 can move relative to the second axis C2 direction by sliding the sliding portion 263 with the inner peripheral surface of the through hole 271. Cannot move relative to the direction intersecting the axis C2 of. Therefore, the second positioning member 27 is held coaxially with the pressing member 26.

An annular second positioning portion 272 that is coaxial with the second axis C2 and projects downward is provided at the lower end portion of the second positioning member 27. The second positioning portion 272 is an example of the second convex portion. The outer peripheral surface of the second positioning portion 272 is the second positioning surface 273. The second positioning unit 272 is configured to be insertable and removable on the inner peripheral side of the first positioning unit 241 provided in the first positioning unit 241. Then, the second positioning portion 272 of the second positioning member 27 enters the inner peripheral side of the first positioning surface 242 of the first positioning member 24, that is, the second positioning surface 273 of the second positioning member 27 is first. By facing or contacting the first positioning surface 242 of the positioning member 24, the pressing member 26 and each holding member 21 are displaced relative to each other in a direction perpendicular to the first axis C1 and the second axis C2. Be regulated. That is, the pressing member 26 and each holding member 21 are held in a positioned state.

The second positioning member 27 is supported by the second positioning member support mechanism 28 so as to be relatively movable in the direction of the second axis C2 with respect to the pressing member 26, and is supported toward the side (lower side) of the guide member 23. Being urged. The second positioning member support mechanism 28 has a second positioning member support member 281, a plurality of guide bars 282, a plurality of stoppers 283, and a plurality of second positioning member urging springs 284. The second positioning member support member 281 is fixed to the pressing member 26 above the second positioning member 27. Each of the plurality of guide bars 282 is a long rod-shaped member, one end (lower end) is fixed to the second positioning member 27, and the other end (upper end) supports the second positioning member. It is inserted through a through hole provided in the member 281 (a through hole penetrating in the second axis C2 direction). The plurality of stoppers 283 are fixed to the upper ends of the plurality of guide bars 282, and hold the guide bars 282 so as not to fall off from the second positioning member support member 281. The second positioning member urging spring 284 is a compression coil spring that can be elastically compressed and deformed, and is arranged between the second positioning member 27 and the second positioning member support member 281.

By such a second positioning member support mechanism 28, the second positioning member 27 is supported so as to be relatively movable with respect to the pressing member 26 in the direction of the second axis C2, and is attached toward the guide member 23 side. It is being pushed. The configuration of the second positioning member support mechanism 28 is not limited to such a configuration. The second positioning member support mechanism 28 supports the second positioning member 27 with respect to the pressing member 26 so as to be linearly reciprocating in the direction of the second axis C2, and supports the second positioning member 27 on the lower side (of the holding member 21). The configuration may be such that it is urged toward the side). Further, although an example in which the second positioning member support member 281 is a disk-shaped member is shown, the shape of the second positioning member support member 281 is not limited. Further, the second positioning member support mechanism 28 may not have the second positioning member support member 281 and the guide bar 282 may be directly attached to the pressing member 26.

The second positioning member 27 is provided with a pressing mechanism support member 31, and a predetermined number (the same number as the holding member 21) of pressing mechanisms 30 are attached to the pressing mechanism support member 31. Each pressing mechanism 30 has a one-to-one correspondence with each holding member 21, and presses the annular core 10 (divided core 14) held by the holding portion 210 of the corresponding holding member 21 from above (applying a compressive force). ) By this, it is prevented that the core pieces 13 forming the annular core 10 are separated from each other. The pressing mechanisms 30 are arranged at equal intervals in the circumferential direction of a circle centered on the second axis C2. Then, each pressing mechanism 30 is located above the holding portion 210 of the corresponding holding member 21, regardless of whether the corresponding holding member 21 is located at the initial position or the operating position.

Each pressing mechanism 30 has a roller 301, a roller support member 302, and a roller urging spring 303. The roller 301 is rotatably supported by the roller support member 302. The rotation center line of the roller 301 is perpendicular to the moving direction of the corresponding holding member 21 in the vertical view. The roller support member 302 is supported by the pressing mechanism support member 31 so as to be linearly reciprocating in the direction of the second axis C2. The roller urging spring 303 urges the roller 301 together with the roller support member 302 toward the lower side (the side of the holding member 21). For example, a compression coil spring that can be elastically compressed and deformed is applied to the roller urging spring 303.

Each pressing mechanism 30 presses the split core 14 held by the holding portion 210 of the corresponding holding member 21 from above, that is, applies a compressive force in the stacking direction of the core pieces 13 to the split core 14. Any configuration can be used, and the specific configuration is not limited. Further, the pressing mechanism support member 31 may also have a configuration capable of supporting each pressing mechanism 30, and the specific configuration is not limited. Further, the present implementation device 20 may not have the pressing mechanism support member 31, and each pressing mechanism 30 may be directly supported by the second positioning member 27.

The moving mechanism 25 reciprocates linearly in the second axis C2 direction by the driving unit 204. For example, the drive unit 204 has a motor that generates rotational power and a ball screw that converts the rotational power generated by the motor into linear motion. In this case, the ball nut of the ball screw is fixed to the pressing member 26 of the moving mechanism 25, and the motor is configured to rotate the screw shaft of the ball screw. According to such a configuration, the pressing member 26 of the moving mechanism 25 can be linearly reciprocated in the second axis C2 direction by the rotational power generated by the motor. The drive unit 204 only needs to be able to reciprocate the moving mechanism 25 in a linear reciprocating direction in the second axis C2 direction, and is not limited to the combination of the motor and the ball screw.

Next, the operation of the implementing device 20 will be described. 8 to 12 are diagrams showing the operation of the implementing device 20. Specifically, FIG. 8 is a top view showing a state in which all the holding members 21 are located at initial positions and the annular core 10 is held by each holding member 21. 9 and 10 are cross-sectional views showing a state in which the holding member 21 is moving from the initial position to the operating position. FIG. 11 is a cross-sectional view showing a state in which the holding member 21 is located at the operating position. FIG. 12 is a top view showing a state in which all the holding members 21 are located at the operating positions.

First, as shown in FIG. 8, all the holding members 21 are positioned at the initial positions, and in that state, each divided core 14 included in the annular core 10 is held by the holding portion 210 of each holding member 21. When all the holding members 21 are located at the initial positions, the holding portion 210 of each holding member 21 can hold one divided core 14 included in the annular core 10 in a state of being connected to each other. Further, each air cylinder 22 holds a state in which each holding member 21 is pressurized toward the initial position.

Next, the drive unit 204 is operated to move the pressing member 26 downward. When the pressing member 26 moves downward, the second positioning member 27 and each pressing mechanism 30 move downward integrally with the pressing member 26. Then, as shown in FIG. 9, the roller 301 of each pressing mechanism 30 comes into contact with the upper surface of the annular core 10 (divided core 14) held by the holding portion 210 of each holding member 21.

When the pressing member 26 moves further downward from the state shown in FIG. 9, the second positioning member 27 also moves further downward. The total number of roller urging springs 303 of the pressing mechanism 30 is such that the second positioning member 27 can move downward together with the pressing member 26 even when the roller 301 of the pressing mechanism 30 is in contact with the upper surface of the annular core 10. The urging force of is smaller than the total urging force of the second positioning member urging spring 284 of the second positioning member support mechanism 28. Then, as shown in FIG. 10, the second positioning portion 272 of the second positioning member 27 enters the inner peripheral side of the first positioning portion 241 of the first positioning member 24, and the positioning convex portion 262 of the pressing member 26 guides. It enters the positioning hole 234 of the member 23. Therefore, the pressing member 26 is positioned with respect to the plurality of holding members 21. Then, in the present implementation device 20, since the pressing member 26 is positioned on both the upper side and the lower side of the holding member 21, the positioning accuracy can be improved.

Further, in the state shown in FIG. 10, the roller urging spring 303 of each pressing mechanism 30 is elastically compressed and deformed. Therefore, a compressive force is applied to the annular core 10 in the stacking direction of the core pieces 13. Therefore, it is prevented that the core pieces 13 forming the annular core 10 are separated from each other.

When the pressing member 26 moves further downward from the state shown in FIG. 10, each pressing surface 261 of the pressing member 26 comes into contact with the pressed surface 216 of each holding member 21 and pushes the pressed surface 216. Here, as can be seen from FIG. 10, the pressed surface 216 and the pressing surface 261 are formed as surfaces inclined by substantially the same angle with respect to the first axis C1 and the second axis C2, and are below the pressing member 26. Due to the movement, both sides 216 and 261 come into contact with the first axis C1 and the second axis C2 in an inclined state. Therefore, as shown in FIGS. 11 and 12, each holding member 21 is operated from an initial position against the pressurization of the air cylinder 22 by a component force of the force received from the pressing member 26 toward the outer peripheral side. Move towards.

As described above, the pressing surfaces 261 of the pressing member 26 are provided side by side in the circumferential direction of the circle centered on the second axis C2. The pressed surfaces 216 of each holding member 21 are arranged in the circumferential direction of a circle centered on the first axis C1. Therefore, the pressed surface 216 of each holding member 21 is simultaneously pressed by each pressing surface 261 of the pressing member 26. Therefore, all the holding members 21 move synchronously, that is, from the initial position to the operating position at the same timing and the same speed. In other words, all the holding members 21 move from the initial position to the operating position in a state where the positions in the radial direction coincide with each other. Therefore, the adjacent holding members 21 are not displaced relative to each other in the radial direction, but are displaced relative to each other only in the circumferential direction of the circle centered on the first axis C1 (they are separated from each other). Therefore, the holding portions 210 of the holding members 21 adjacent to each other in the circumferential direction move relatively away from each other in the circumferential direction of the circle centered on the first axis C1.

As described above, the connecting convex portion 16 and the connecting concave portion 17 of the split core 14 are configured to be connectable and separable when the split cores 14 adjacent to each other in the circumferential direction move relative to each other in the circumferential direction. Therefore, when the holding members 21 move synchronously as described above, the holding portions 210 of the holding members 21 adjacent to each other in the circumferential direction are relatively relative to each other in the radial direction of the circle centered on the first axis C1. Instead of moving, it moves in a direction relatively distant in the circumferential direction, and as a result, the connection between the connecting convex portion 16 and the connecting concave portion 17 is released. By releasing the connection between the connecting convex portion 16 and the connecting concave portion 17 all at once with respect to the connection between all the adjacent split cores 14, the annular core 10 becomes the split core 14. To separate. As a result, as shown in FIG. 12, the annular core 10 is separated into individual divided cores 14 by one movement of the pressing member 26. That is, it can be separated into individual divided cores 14 in one step.

Then, according to the present implementation device 20, by moving the pressing member 26 in the second axis C2 direction, the plurality of holding members 21 can be moved synchronously from the initial position to the operating position. With such a configuration, the moving mechanism 25 for synchronously moving the plurality of holding members 21 can be made into a simple structure. Therefore, it is possible to reduce the size of the device and the equipment cost.

Before each pressing surface 261 of the pressing member 26 comes into contact with the pressed surface 216 of each holding member 21, the positioning convex portion 262 of the pressing member 26 enters the positioning hole 234 of the guide member 23, and the second The second positioning portion 272 of the positioning member 27 enters the inner peripheral side (region surrounded by the first positioning surface 242) of the first positioning portion 241 of the first positioning member 24. Therefore, the holding member 21 can be moved in a state where the pressing member 26 and each holding member 21 are positioned. Therefore, when moving each holding member 21 from the initial position to the operating position, the positional deviation between the pressing member 26 and each holding member 21 is prevented, and the timing at which each holding member 21 is pushed by the pressing member 26 or each holding member 21 is prevented. It is possible to prevent or suppress non-uniform radial positions of.

Further, when the lower end surface of the second positioning member 27 comes into contact with the first positioning member 24, the second positioning member 27 cannot move below the position. However, the second positioning member 27 is movably supported with respect to the pressing member 26 via the second positioning member support mechanism 28. Therefore, the pressing member 26 can be further moved downward by elastically compressing and deforming the second positioning member urging spring 284 of the second positioning member support mechanism 28.

Further, each holding member 21 is pressed toward the initial position side by the air cylinder 22. With such a configuration, it is possible to improve the accuracy of synchronization of the movement of each holding member 21 from the initial position to the operating position. In other words, when each holding member 21 is moved from the initial position to the operating position by the pressing member 26, all the holding members 21 do not move relative to each other in the radial direction (movement at the same speed, relative speed in the radial direction). It is possible to increase the certainty of (being zero). That is, in the configuration in which each holding member 21 is moved to the outer peripheral side by the pressing member 26, when the connecting strength between the divided cores 14 included in the annular core 10 is not uniform, the separated portion is separated from the portion where the connecting strength is weak. Some holding members 21 that hold the including split core 14 may move faster than the remaining holding members 21. Here, even if the split core 14 held by the fast-moving holding member 21 and the split core 14 adjacent to one side of the split core 14 are separated, the split core adjacent to the other side of the split core 14 is separated. 14 may not yet be separated. In this case, the positions of the holding members 21 in the radial direction are displaced from each other because the moving speeds of the holding member 21 that has moved quickly and the holding member 21 that is adjacent to the other side are different. If the positions of the holding members 21 in the radial direction deviate from each other, the connecting convex portions and the connecting concave portions of the split cores 14 held by the respective holding members 21 interfere with each other, and these split cores 14 cannot be separated. Therefore, when the annular core 10 is separated into the individual divided cores 14, the shapes of the connecting convex portion and the connecting concave portion may be lost. According to the executing device 20, by applying pressure to each holding member 21 toward the center side by the air cylinder 22, it is possible to prevent a part of the holding members 21 from moving faster than the remaining holding members 21. The accuracy of synchronization of movement of the holding member 21 can be improved. Therefore, even when the connection strength between the divided cores 14 included in the annular core 10 is not uniform, the accuracy of synchronization of the movement of the holding member 21 can be improved, so that the circular laminated cores 10 are individually divided. It can be separated into core 14.

Further, in the present implementation device 20, since the pressing member 26 and each holding member 21 are positioned on both the upper side and the lower side of the holding member 21, the positioning accuracy can be improved. Then, since the holding member 21 can be moved from the initial position to the operating position in a state where the first axis C1 and the second axis C2 coincide with each other, the accuracy of synchronization of the movement of the holding member 21 can be improved. ..

Further, when each holding member 21 moves from the initial position to the operating position, the second holding surface 212 of the holding member 21 comes into contact with the inner surface of the teeth portion 12 in the radial direction, and this surface is directed outward in the radial direction. push. As described above, since the annular core 10 is formed by laminating a plurality of core pieces 13, a plurality of core pieces forming the annular core 10 due to misalignment of the laminated core pieces 13 or the like. A specific core piece 13 of 13 may protrude inward in the radial direction. In such a case, when the holding member 21 moves, the second holding surface 212 of the holding member 21 comes into contact with only the specific core piece 13, which may apply a large force to the specific core piece 13. As a result, the core pieces 13 may be separated from each other. In the present implementation device 20, since a force is applied to the annular core 10 (divided core 14) by the pressing mechanism 30 to compress the core pieces 13 in the stacking direction, the core pieces forming the annular core 10 (divided core 14) are formed. 13 It is prevented that they are separated from each other.

Further, the pressing mechanism 30 is provided with a rotatable roller 301, and the roller 301 is configured to come into contact with the annular core 10. Therefore, when the holding member 21 moves from the initial position to the operating position, the roller 301 rotates on the surface of the annular core 10 to prevent the surface of the annular core 10 from being scratched.

Although the embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments. The present invention can be modified without departing from the spirit of the present invention, and these are also included in the technical scope of the present invention.

For example, in the present embodiment, the pressing member 26 moves each holding member 21 from the initial position to the operating position, but the moving mechanism 25 is not limited to the above configuration. In short, the moving mechanism 25 can move all the holding members 21 from the initial position to the operating position without moving relative to each other in the radial direction (in other words, in a state where the radial positions coincide with each other). It suffices if it is configured. For example, a plurality of linear actuators may be applied as the moving mechanism 25, and the stacking core separating device may have a control device for synchronously operating the plurality of linear actuators. In this case, the holding member 21 is connected to each linear actuator, and the control device synchronously operates the plurality of linear actuators so that the holding member 21 moves synchronously from the initial position to the operating position. It suffices if it is configured in.

Further, in the above-described embodiment, the configuration in which the second positioning portion 271 of the second positioning member 27 is inserted into the inner peripheral side of the first positioning portion 241 of the first positioning member 24 is shown, but the configuration is not limited to such a configuration. The first positioning portion 241 of the first positioning member 24 may be inserted into the inner peripheral side of the second positioning portion 271 of the second positioning member 27. In short, the first positioning member 24 and the second positioning member 27 may be configured so that the pressing member 26 and each holding member 21 can be positioned on the upper side of each holding member 21.

Further, in the present embodiment, the air cylinder 22 is shown as the pressurization mechanism, but the pressurization mechanism is not limited to the air cylinder 22. A spring may be applied as the pressurization mechanism. In short, the pressurization mechanism may be configured so that when each holding member 21 is moved from the initial position to the operating position, each holding member 21 can be pressurized toward the center side with a force smaller than that of the moving mechanism 25. .. When the linear actuator is applied as the moving mechanism 25 as described above, the pressurization mechanism may not be provided.

Further, instead of the pressurization mechanism, a resistance mechanism that acts as a resistance to the movement of the holding member 21 outward in the radial direction may be provided. For example, the contact surface between the holding member 21 and the guide member 23 may be provided with irregularities to increase the sliding resistance. Further, a damper may be provided as a resistance mechanism. In short, the resistance mechanism may have a configuration that can prevent the holding member 21 from suddenly moving toward the outer peripheral side.

Further, in the above-described embodiment, the pressing surface 261 is an inclined surface that is inclined with respect to the second axis C2, and the pressed surface 216 is an inclined surface that is inclined with respect to the first axis C1. , Not limited to such a configuration. That is, if the pressing surface 261 is an inclined surface that is inclined with respect to the second axis C2, or if the pressed surface 216 is an inclined surface that is inclined with respect to the first axis C1, the pressing surface 261 is covered. The pressed surface 216 can be pressed in contact with the pressing surface 216. Therefore, at least one of the pressing surface 261 and the pressed surface 216 may be an inclined surface.

20 ... Annular core separating device (this implementation device), 204 ... Drive unit, 21 ... Holding member, 210 ... Holding unit, 216 ... Pressed surface, 22 ... Air cylinder, 23 ... Guide member, 24 ... First positioning member , 25 ... moving mechanism, 26 ... pressing member, 261 ... pressing surface, 27 ... second positioning member, 272 ... second positioning unit, 273 ... second positioning surface, 30 ... pressing mechanism, C1 ... first axis, C2 … Second axis

Claims (6)

It is a stacking core separating device that separates a circular laminated core having a plurality of split cores that are connected in a circle and can be separated in the circumferential direction into the plurality of split cores.
A plurality of holding members that are radially arranged around the first axis and move between the initial position and the operating position located at an outer diameter from the initial position.
It has a moving mechanism that synchronizes with the plurality of holding members, moves between the initial position and the operating position, and moves the plurality of holding members radially from the initial position.
When the plurality of holding members are located at the initial positions, the plurality of divided cores are connected to each other to hold the laminated core.
A laminated core separating device including a holding portion that holds the divided core in a state of being individually separated from the laminated core when the holding member is located at the operating position. The laminated core separating device according to claim 1.
The moving mechanism includes a rod-shaped pressing member and a driving unit that linearly moves the pressing member in the second axial direction.
The second axis is the center line of the pressing member and is in the same direction as the first axis.
A pressed surface is provided at the end of each of the plurality of holding members on the side close to the first axis.
When the pressing member moves in the second axial direction by the driving force of the driving unit, a plurality of pressing members come into contact with the pressed surfaces provided on each of the holding members. A stacking core separating device provided with the same number of pressing surfaces as the holding member that pushes each of the holding members from the initial position toward the operating position. The laminated core separating device according to claim 2.
A stacking core separating device further comprising a pressurizing mechanism that pressurizes a plurality of the holding members toward the initial position side. The laminated core separating device according to claim 2 or 3.
The tip of the pressing member can be inserted and removed coaxially with the first axis into the supporting member that movably supports the plurality of holding members between the initial position and the operating position, and the pressing member said. When the tip is inserted, a hole is provided to regulate the relative displacement of the pressing member and the plurality of holding members in the direction perpendicular to the first axis and the second axis. , Laminated core separator. The laminated core separating device according to any one of claims 2 to 4.
First positioning in which a plurality of the holding members are attached to support members that movably support the initial position and the operating position, and an annular first convex portion coaxial with the first axis is provided. Members and
The first of the pressing member and the plurality of holding members when the pressing member is coaxially attached to the pressing member and has an annular shape coaxial with the second axis and is inserted into the inner peripheral side of the first convex portion. And a second positioning member provided with a second convex portion that regulates the relative displacement in the direction perpendicular to the axis of the second axis and the second axis.
A layered core separator that further comprises. The laminated core separating device according to any one of claims 1 to 5.
A stacking core separating device further comprising a pressing mechanism for applying a compressive force in the stacking direction of plate-shaped core pieces included in the split core to the split core held in the holding portion of the holding member.

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