Manufacturing method and manufacturing device for iron core products

Abstract

To provide an iron core product manufacturing method and an iron core product manufacturing apparatus, capable of efficiently producing iron core products.SOLUTION: An iron core product manufacturing method includes: a first step of holding, by a first holding part provided on a holding unit, a first insertion object, and holding, by a second holding part provided on the holding unit, a second insertion object; a second step, after the first step, of displacing at least one of the first holding part and the second holding part so that a posture of the first insertion object corresponds to an opening of a first reception part provided on a first principal surface of a first reception object and a posture of the second insertion object corresponds to an opening of a second reception part provided on the first principal surface; and a third step, after the second step, of inserting the first insertion object from the first holding part into the first reception part, and inserting the second insertion object from the second holding part into the second reception part in a state of the holding unit being disposed so as to face the first principal surface.SELECTED DRAWING: Figure 3

Description

[Technical field]

[0001] The present disclosure relates to a method and an apparatus for manufacturing an iron core product. [Background technology]

[0002] Patent Documents 1 and 2 disclose a rotor including a main body (core) provided with a plurality of magnet insertion holes extending in the extension direction of the rotation shaft, and a plurality of permanent magnets respectively arranged in the plurality of magnet insertion holes. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2019-161828 A [Patent Document 2] JP 2020-088879 A Summary of the Invention [Problem to be solved by the invention]

[0004] The present disclosure describes a manufacturing method and an apparatus for manufacturing an iron core product that are capable of efficiently producing iron core products. [Means for solving the problem]

[0005] An example of a manufacturing method for an iron core product may include a first step in which a first retaining portion provided on the holding unit holds a first insert and a second retaining portion provided on the holding unit holds a second insert; a second step in which, after the first step, at least one of the first retaining portion and the second retaining portion is displaced so that the posture of the first insert corresponds to the opening of the first receiving portion provided on the first main surface of the first receiving object and the posture of the second insert corresponds to the opening of the second receiving portion provided on the first main surface; and a third step in which, after the second step, with the holding unit positioned to face the first main surface, the first insert is inserted from the first retaining portion into the first receiving portion and the second insert is inserted from the second retaining portion into the second receiving portion.

[0006] An example of an iron core product manufacturing apparatus may include a receiving object including a first main surface, a first receiving portion having an opening on the first main surface, and a second receiving portion having an opening on the first main surface, a holding unit including a first holding portion configured to hold the first insert, and a second holding portion configured to hold the second insert, and a control portion. The control unit may be configured to perform a first process of controlling the first holding portion and the second holding portion to hold a first insert in the first holding portion and to hold a second insert in the second holding portion; a second process of controlling the holding unit after the first process to displace at least one of the first holding portion and the second holding portion so that the attitude of the first insert corresponds to the opening of the first receiving portion and the attitude of the second receiving portion corresponds to the opening of the second receiving portion; a third process of controlling at least one of the receiving object and the holding unit to position the holding unit relative to the receiving object so that the holding unit faces the first main surface; and a fourth process of controlling the holding unit after the third process to insert the first insert from the first holding portion into the first receiving portion and insert the second insert from the second holding portion into the second receiving portion. Effect of the Invention

[0007] According to the manufacturing method and manufacturing apparatus for an iron core product according to the present disclosure, it is possible to efficiently produce iron core products. [Brief description of the drawings]

[0008] [Figure 1] FIG. 1 is a front view showing an example of a rotor laminated core. [Diagram 2] FIG. 2 is a perspective view of a portion of an example insertion device. [Diagram 3] FIG. 3 is a perspective view of a portion of an example insertion device. [Figure 4] FIG. 4 is a front view showing an example of the insertion jig. [Diagram 5] FIG. 5 is a cross-sectional view taken along line VV in FIG. [Figure 6] FIG. 6 is a diagram for explaining a method for inserting an insert into the insertion jig. [Figure 7] FIG. 7 is a diagram for explaining a method for inserting an insert into the insertion jig. [Figure 8] FIG. 8 is a diagram for explaining a method for inserting an insert into the insertion jig. [Figure 9] FIG. 9 is a diagram for explaining a method for inserting an insert into the insertion jig. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0009] In the following description, the same elements or elements having the same functions are designated by the same reference numerals, and duplicated descriptions will be omitted. Note that in this specification, when referring to the top, bottom, right, and left of the figure, the directions of the reference numerals in the figure are used as the reference.

[0010] [Rotor laminated core] First, the configuration of a rotor laminated core 10 (core product) will be described with reference to Fig. 1. The rotor laminated core 10 includes a lamination 12 (received object), a plurality of inserts 14, and a plurality of solidified resins 16.

[0011] The laminate 12 has a cylindrical shape. An axial hole 12a is provided in the center of the laminate 12, penetrating the laminate 12 so as to extend along the central axis Ax. The axial hole 12a extends in the stacking direction (height direction) of the laminate 12 (hereinafter, the stacking direction of the laminate 12 will be simply referred to as the "stacking direction"). Since the laminate 12 rotates around the central axis Ax, the central axis Ax is also the rotation axis. A shaft is inserted into the axial hole 12a.

[0012] A plurality of receiving portions 18 are formed in the laminate 12. In the example of FIG. 1, 24 receiving portions 18 are formed in the laminate 12. The receiving portions 18 may be arranged at predetermined intervals along the outer periphery of the laminate 12. The receiving portions 18 may be through holes that extend along the central axis Ax from one main surface S of the laminate 12 to the other main surface (not shown) located on the opposite side. The receiving portions 18 may be recesses that extend along the central axis Ax from one main surface S of the laminate 12 but do not reach the other main surface.

[0013] When viewing the main surface S of the laminate 12 from the stacking direction, the opening shape and the opening direction of the receiving portion 18 on the main surface S are not particularly limited. The opening shape of the receiving portion 18 on the main surface S may be, for example, rectangular, arcuate, or curved. In the example shown in Fig. 1, the opening of the receiving portion 18 on the main surface S is rectangular.

[0014] The laminate 12 is formed by stacking a plurality of punched members W (see FIG. 3). The punched members W are plate-like bodies obtained by punching a metal plate (e.g., an electromagnetic steel plate) into a predetermined shape, and have a shape corresponding to the laminate 12. The punched members W adjacent to each other in the height direction may be fastened to each other by caulking, may be joined by an adhesive, or may be joined by welding. The laminate 12 may be formed by so-called rolling or skewing.

[0015] The inserts 14 may be magnetic materials such as permanent magnets. The shape of the inserts 14 is not particularly limited, and may be, for example, a rectangular prism. One insert 14 may be inserted into one receiving portion 18, or multiple inserts 14 may be inserted into one receiving portion 18. In the example of FIG. 1, the inserts 14, which are permanent magnets, are inserted into the receiving portions 18 one by one. In this case, the rotor laminated core 10 includes 24 inserts 14.

[0016] The solidified resin 16 is a solidified product of molten resin filled in the receiving portion 18 in which the insert 14 is disposed. The solidified resin 16 may be configured to fix the insert 14 in the receiving portion 18. The solidified resin 16 may be configured to join adjacent punched members W in the lamination direction. In the example of FIG. 1, the rotor laminated core 10 includes 24 pieces of solidified resin 16, the same number as the receiving portions 18.

[0017] Here, when the main surface S of the laminate 12 is viewed from the stacking direction, the main surface S may include a plurality of regions (six regions RA to RF in the example of FIG. 1). The plurality of regions may be aligned along the outer periphery of the laminate 12. In the example of FIG. 1, the regions RA to RF may be aligned clockwise with respect to the central axis Ax when the main surface S is viewed from the stacking direction.

[0018] Each of the regions RA to RF may constitute one magnetic pole of the rotor laminated core 10. A receiving portion group composed of the same number of receiving portions 18 (four receiving portions 18 in the example of FIG. 1) may be arranged in each of the regions RA to RF.

[0019] In this specification, the four receiving portions 18 arranged in the region RA are referred to as "receiving portions 18A", and these four receiving portions 18A are referred to individually as "receiving portion 18A1", "receiving portion 18A2", "receiving portion 18A3", and "receiving portion 18A4". The receiving portions 18A1 to 18A4 may be arranged clockwise with respect to the central axis Ax when the main surface S is viewed from the stacking direction. In addition, the inserts 14 inserted into the receiving portions 18A1 to 18A4 are referred to as "insert 14A1", "insert 14A2", "insert 14A3", and "insert 14A4", respectively. The same applies to the receiving portions 18 and inserts 14 in the other regions RB to RF.

[0020] In the example shown in FIG. 1, receiving portions 18A1 and 18A4 extend in the radial direction such that the ends on the central axis Ax side face the inside of region RA. Receiving portions 18A2 and 18A3 extend in the circumferential direction. The end of receiving portion 18A2 located on the circumferential outer side in region RA faces the end of receiving portion 18A1 on the central axis Ax side. The end of receiving portion 18A3 located on the circumferential outer side in region RA faces the end of receiving portion 18A4 on the central axis Ax side. Therefore, in the example shown in FIG. 1, receiving portions 18A1 to 18A4 are arranged as a whole in region RA in the shape of the number "3" or the letter "M".

[0021] [Insertion device] Next, the configuration of the insertion device 100 (manufacturing device for iron core products) will be described with reference to Fig. 2 to Fig. 5. The insertion device 100 is configured to insert the insert 14 into the receiving section 18. As shown in Fig. 2 and Fig. 3, the insertion device 100 includes a measuring section 200, a holding unit 300, a jig unit 400, a closing unit 500, a holding unit 600, a push-out unit 700, and a controller Ctr (control section).

[0022] The weighing section 200 is configured to support a plurality of inserts 14 such that one end of each insert 14 is positioned in the air. The weighing section 200 may be configured to support, for example, the same number of inserts 14 as the number of receiving sections 18 arranged in each of the regions RA to RF of the stack 12 (four inserts 14 in the example of FIG. 2). The plurality of inserts 14 may be supported by the weighing section 200 such that they are arranged substantially horizontally in a line at predetermined intervals. As shown in FIG. 2, the weighing section 200 is configured to weigh the weight of each of the placed inserts 14 and transmit the data to the controller Ctr.

[0023] The holding unit 300 is configured to operate based on a control signal from the controller Ctr, hold the multiple inserts 14 supported by the weighing section 200, and change (displace) the positions and / or postures of the inserts 14. The holding unit 300 includes a base section 310, multiple holding sections 320, multiple extrusion members 330, and a drive section 340.

[0024] The base portion 310 is configured to support a plurality of holding portions 320. As illustrated in FIG. 2, the base portion 310 may be a plate-like body extending along the vertical direction. A plurality of guide paths 312 are provided in the base portion 310. In the example of FIG. 2, four guide paths 312 are provided in the base portion 310. These guide paths 312 are referred to as "guide path 3121", "guide path 3122", "guide path 3123", and "guide path 3124" from right to left in FIG. 2, respectively.

[0025] The guide path 312 is configured to guide the holding portion 320 along its extending direction. The guide path 312 may be linear, curved, or bent. The guide path 312 may be configured to engage with the base end of the holding portion 320. For example, the guide path 312 may be an elongated hole penetrating the base portion 310 (see the example in FIG. 2), a recessed groove that does not penetrate the base portion 310, or a protrusion (rail) protruding from the main surface of the base portion 310.

[0026] In the example of FIG. 2, the guide paths 3121-3124 are linear elongated holes extending in the up-down direction. The upper ends of the guide paths 3121-3124 are arranged in the horizontal direction at intervals approximately equal to the intervals between the multiple inserts 14 supported by the weighing unit 200. The guide paths 3121-3124 extend so as to widen outward in the horizontal direction as they extend downward. The positions of the lower ends of the guide paths 3121-3124 are set so as to correspond to a predetermined receiving portion 412 of the jig 410 when the base unit 310 faces the jig 410 described below. For example, as illustrated in FIG. 2, the guide paths 3121, 3124 may be set to be shorter in length than the guide paths 3122, 3123 and to be steeper in inclination than the guide paths 3122, 3123.

[0027] Each of the plurality of holding portions 320 engages with a corresponding guide path 312. In the example of Fig. 2, holding portions 3201 to 3204 are lined up in order from right to left in Fig. 2 corresponding to guide paths 3121 to 3124, respectively.

[0028] The holding unit 320 extends horizontally from the base unit 310 toward the measuring unit 200. The holding unit 320 may be cylindrical in shape in which the insert 14 can be placed. The holding unit 320 is configured to hold the insert 14 supported by the measuring unit 200 by being driven by the driving unit 340. The holding unit 320 may be, for example, a vacuum chuck that adsorbs the insert 14 by negative pressure, or a mechanical chuck that physically clamps the insert 14. The holding unit 320 is configured to move along the guide path 312 by being driven by the driving unit 340 (see arrow Ar1 in FIG. 2).

[0029] The holding portion 320 may be configured to be rotatable (including rotatable) around a virtual axis passing through the center of the holding portion 320 within the guide path 312 (see arrow Ar2 in FIG. 2). The holding portion 320 may rotate, for example, while moving along the guide path 312, or may rotate when it reaches the upper end or lower end of the guide path 312. Therefore, the attitude (rotation angle) of the holding portion 320 may be different between a state in which the holding portion 320 is located at the upper end of the guide path 312 and a state in which the holding portion 320 is located at the lower end of the guide path 312.

[0030] The multiple push members 330 are rod-shaped. The multiple push members 330 are inserted from the base end side into the corresponding holding parts 320. In the example of Fig. 2, push members 3301 to 3304 are lined up in order from right to left in Fig. 2 corresponding to the holding parts 3201 to 3204, respectively.

[0031] The push-out member 330 is configured to be movable forward and backward along its own longitudinal direction. When the holding section 320 releases the hold of the insert 14, the push-out member 330 advances toward the tip of the holding section 320, whereby the insert 14 in the holding section 320 is pushed forward.

[0032] The driving unit 340 is configured to operate based on a control signal from the controller Ctr and drive each part (the base part 310, the holding part 320, and the pushing member 330) of the holding unit 300. The driving unit 340 may be, for example, a multi-joint type robot arm.

[0033] Driving unit 340 is configured to move base unit 310 in the X-axis direction, Y-axis direction, and Z-axis direction in Figures 2 and 3. That is, base unit 310 is configured to be movable in a direction approaching or moving away from measuring unit 200 (see arrow Ar3 in Figures 2 and 3), a direction in which measuring unit 200 and jig 410 are aligned (see arrow Ar4 in Figure 2), and a vertical direction (see arrow Ar5 in Figure 2).

[0034] The driving unit 340 is configured to rotate (including turn) the base unit 310 about the X-axis as a central axis. That is, the base unit 310 is configured to be rotatable (including turned) clockwise or counterclockwise when viewed from the X-axis direction (the direction from the holding unit 300 toward the measuring unit 200) (see arrow Ar6 in FIG. 2).

[0035] The jig unit 400 includes a plurality of jigs 410 (received objects), a connection member 420, a rotating shaft 430, and a drive unit 440. In the example of Fig. 3, the jig unit 400 includes two jigs 410, but may include three or more jigs 410. Hereinafter, one of the two jigs 410 illustrated in Fig. 3 will be referred to as "jig 410A" and the other as "jig 410B."

[0036] The jig 410 is configured to temporarily hold the insert 14 for insertion into the receiving portion 18 of the laminate 12. The jig 410 may be cylindrical, as illustrated in FIGS. 3 and 4. The jig 410 has a plurality of receiving portions 412 formed therein. In the example of FIGS. 3 and 4, 24 receiving portions 412 are formed in the jig 410. The receiving portions 412 may be arranged at predetermined intervals along the outer periphery of the jig 410. The receiving portions 412 may be through holes extending along the central axis Ax from one main surface S1 of the laminate 12 to the other main surface S2 (see FIG. 5) located on the opposite side. The receiving portion 412 may be a recess extending along the central axis Ax from one main surface S1 of the jig 410 but not reaching the other main surface S2.

[0037] When the main surface S1 of the jig 410 is viewed from the X-axis direction, the opening shape and the opening orientation of the receiving portion 412 in the main surface S1 are not particularly limited. The opening shape of the receiving portion 412 in the main surface S1 may be, for example, rectangular, arc-shaped, or curved. As illustrated in Figures 4 and 5, the opening of the receiving portion 412 in the main surface S1 may be integrated with the opening of another receiving portion 412 adjacent in the circumferential direction to form one common opening OP.

[0038] When the main surface S2 of the jig 410 is viewed from the X-axis direction, the shape and orientation of the opening of the receiving portion 412 on the main surface S2 are not particularly limited. The shape of the opening of the receiving portion 412 on the main surface S2 may be, for example, rectangular, arcuate, or curved. As illustrated in Fig. 5, the opening of the receiving portion 412 on the main surface S2 does not have to be integrated with the openings of other receiving portions 412 adjacent to each other in the circumferential direction.

[0039] 5, two receiving portions 412 that form a common opening OP in the main surface S1 and that form openings independent of each other in the main surface S2 may extend from the main surface S1 to the main surface S2 so as to penetrate the jig 410. In this case, the two receiving portions 412 may be configured so that the cross-sectional area becomes smaller from the main surface S1 toward the main surface S2.

[0040] 5, the two receiving portions 412 may include a base end portion on the main surface S2 side where the opening area is substantially constant (a base end portion where the cross-sectional shape of the opening does not change substantially). The cross-sectional shape of the opening of the base end portion may be set to be substantially the same as the cross-sectional shape of the insert 14 or slightly larger than the cross-sectional shape of the insert 14. In this case, the jig 410 can easily hold the insert 14 at the base end portion.

[0041] Here, when the main surface S1 of the jig 410 is viewed from the X-axis direction, the main surface S1 may include a plurality of regions (six regions TA to TF in the example of FIG. 4). The plurality of regions correspond to the plurality of regions of the laminate 12 (six regions RA to RF in the example of FIG. 1), respectively, and may be arranged along the outer periphery. In the example of FIG. 4, the regions TA to TF may be arranged clockwise with respect to the center of the jig 410 when the main surface S1 is viewed from the X-axis direction. A receiving portion group consisting of the same number of receiving portions 412 (four receiving portions 412 in the example of FIG. 4) may be arranged in each of the regions TA to TF.

[0042] In this specification, the four receiving portions 412 arranged in the region TA are referred to as "receiving portions 412A", and these four receiving portions 412A are referred to individually as "receiving portion 412A1", "receiving portion 412A2", "receiving portion 412A3", and "receiving portion 412A4". The receiving portions 412A1 to 412A4 may be arranged clockwise with respect to the center of the jig 410 when the main surface S1 is viewed from the X-axis direction. In the example of FIG. 4, the receiving portions 412A1 and 412A2 form one common opening OPA1, and the receiving portions 412A3 and 412A4 form one common opening OPA2. The same applies to the receiving portions 412 in the other regions TB to TF.

[0043] In the example shown in FIG. 4, the receiving portions 412A1 and 412A4 extend in the radial direction so that the end on the central axis Ax side faces the inside of the region TA. The receiving portions 412A2 and 412A3 extend in the circumferential direction. The end of the receiving portion 412A2 located on the circumferential outer side in the region TA is integrated with the end of the receiving portion 412A1 on the center side of the jig 410 to form one common opening OPA1. The end of the receiving portion 412A3 located on the circumferential outer side in the region TA is integrated with the end of the receiving portion 412A4 on the center side of the jig 410 to form one common opening OPA2. Therefore, in the example shown in FIG. 4, the openings OPA1 and OPA2 are shaped like the letter "V" and are arranged on the main surface S1 so that the apex faces the center side of the jig 410.

[0044] Returning to Fig. 3, the connection member 420 is configured to connect the multiple jigs 410. The rotating shaft 430 is connected to the connection member 420 so as to extend along the X-axis direction. The rotating shaft 430 is configured to be rotatable (including rotational) around a virtual axis passing through the center of the rotating shaft 430 by being driven by the drive unit 440. As the rotating shaft 430 rotates, the multiple jigs 410 rotate clockwise or counterclockwise via the connection member 420 (see arrow Ar7 in Fig. 3).

[0045] The driving unit 440 is configured to operate based on a control signal from the controller Ctr and drive the rotating shaft 430. The driving unit 440 may be, for example, a motor.

[0046] The closing unit 500 includes a closing member 510 and a drive unit 520. The closing member 510 is configured to close the opening of the receiving portion 412 in the main surface S2 when placed on the main surface S2 of the jig 410. As illustrated in Fig. 3, the closing member 510 may be a plate-like body extending along the vertical direction.

[0047] The driving unit 520 is configured to operate based on a control signal from the controller Ctr and drive the closing member 510. The driving unit 520 may be, for example, a linear actuator. The driving unit 520 is configured to move the closing member 510 in the X-axis direction in Fig. 3. That is, the closing member 510 is configured to be movable in a direction approaching or moving away from the jig 410 (see arrow Ar8 in Fig. 3).

[0048] The holding unit 600 includes a jig 610 and a drive unit 620. The jig 610 may be configured to hold the laminate 12 formed by, for example, a press device (not shown) and transport it to the insertion device 100. The jig 610 includes a base portion 611 and an insertion post 612. The base portion 611 may be in the form of a plate.

[0049] The insertion post 612 is located at approximately the center of the base portion 611 and protrudes from the main surface of the base portion 611 in a direction perpendicular to the main surface. The insertion post 612 has a cylindrical shape and has an outer shape corresponding to the axial hole 12a of the laminate 12. The laminate 12 is mounted on the jig 610 by inserting the insertion post 612 into the axial hole 12a and abutting one of the main surfaces of the laminate 12 against the base portion 611. Note that the jig 610 may be in an upright position (with the insertion post 612 extending upward) and the laminate 12 may be placed on the base portion 611 until the jig 610 arrives at the insertion device 100 from the press device. Thereafter, when the jig 610 arrives at the insertion device 100, the jig 610 may be positioned in a sideways position (with the insertion post 612 extending horizontally toward the jig 410), and the laminate 12 may be held by the insertion post 612.

[0050] The driving unit 620 is configured to operate based on a control signal from the controller Ctr and drive the jig 610 that has reached the insertion device 100. The driving unit 620 may be, for example, a linear actuator. The driving unit 620 is configured to move the jig 610 in the X-axis direction in Fig. 3. That is, the jig 610 is configured to be movable in a direction approaching or moving away from the jig 410 (see arrow Ar10 in Fig. 3).

[0051] The pushing unit 700 is configured to push the insert 14 held in the receiving portion 412 of the jig 410 toward the receiving portion 18 of the laminate 12 held in the jig 610. The pushing unit 700 includes a base portion 710, a plurality of pushing members 720, and a driving portion 730.

[0052] 3, the base portion 710 may be a plate-like body extending in the vertical direction. The push members 720 protrude from the main surface of the base portion 710 in a direction perpendicular to the main surface. The push members 720 are disposed at positions corresponding to the receiving portions 412 of the jig 410 when the base portion 710 faces the main surface S1 of the jig 410.

[0053] The driving unit 730 is configured to operate based on a control signal from the controller Ctr and drive the base unit 710. The driving unit 730 may be, for example, a linear actuator. The driving unit 730 is configured to move the base unit 710 in the X-axis direction in Fig. 3. That is, the base unit 710 is configured to be movable in a direction approaching or moving away from the jig 410 (see arrow Ar10 in Fig. 3).

[0054] The controller Ctr is configured to generate signals for operating each drive unit of the insertion device 100 based on, for example, a program recorded in a recording medium (not shown) or an operation input from an operator. The controller Ctr is configured to transmit the signals to each drive unit of the insertion device 100.

[0055] [How to insert the insert] Next, a method for inserting the inserts 14 (a manufacturing method for the rotor laminated core 10) will be described with reference to Fig. 2, Fig. 3, and Fig. 6 to Fig. 9. It is assumed that, as an initial state of the insertion device 100, the multiple holding parts 320 are positioned at the upper ends of the corresponding guide paths 312 and are aligned in a row in the Y-axis direction. It is also assumed that, as the initial state, the jig 410A and the blocking member 510 are aligned in the X-axis direction, and the jig 410B, the jig 610 in a laterally laid state that holds the laminates 12, and the base part 710 are aligned in the X-axis direction, as shown in Fig. 3.

[0056] First, as shown in FIG. 2, four inserts 14 are placed on the weighing unit 200 by a conveying mechanism (e.g., a robot arm) not shown. The weighing unit 200 measures the weight of each insert 14 and transmits the data to the controller Ctr. The controller Ctr may determine whether the weight of the insert 14 is within a predetermined range based on the data. If the controller Ctr determines that the weight of the insert 14 is not within the predetermined range, it may determine that an error has occurred, such as the insert 14 having a defect such as a chip or crack, or more than a specified number of inserts 14 being erroneously placed on the weighing unit 200. In this case, the controller Ctr may notify an operator of the occurrence of the error, or may control the conveying mechanism to remove the insert 14 that is the subject of the error from the weighing unit 200.

[0057] Next, the controller Ctr instructs the driving unit 340 to move the base unit 310 closer to the weighing unit 200, and the four holders 320 respectively hold the four inserts 14 on the weighing unit 200. Here, as illustrated in Fig. 2 and Fig. 6, it is assumed that the holder 3201 holds the insert 14F2, the holder 3202 holds the insert 14A1, the holder 3203 holds the insert 14A4, and the holder 3204 holds the insert 14B3.

[0058] Next, the controller Ctr instructs the driving unit 340 to move the base part 310 so that the base part 310 faces the jig 410A in the X-axis direction (see Figs. 2 and 3). At this time, the controller Ctr may instruct the driving unit 340 to rotate the base part 310 so as to change the attitude of the base part 310, depending on the position of the receiving part 412 of the jig 410A into which the insert 14 held by the holding part 320 is inserted.

[0059] Also, during or before and after the movement of the base part 310, the controller Ctr instructs the drive part 340 to move the holding part 320 so that the holding part 320 is positioned at the lower end of the guide path 312 (see FIG. 3). At this time, as shown in FIG. 6, the insert 14F2 held by the holding part 3201 is displaced so that it overlaps with the receiving part 412F2 of the jig 410A when viewed from the X-axis direction and assumes a posture corresponding to the opening of the receiving part 412F2 in the main surface S1. The insert 14A1 held by the holding part 3202 is displaced so that it overlaps with the receiving part 412A1 of the jig 410A when viewed from the X-axis direction and assumes a posture corresponding to the opening of the receiving part 412A1 in the main surface S1. The insert 14A4 held by the holding portion 3203 is displaced so as to overlap the receiving portion 412A4 of the jig 410A when viewed from the X-axis direction and to assume a posture corresponding to the opening of the receiving portion 412A4 in the main surface S1. The insert 14B3 held by the holding portion 3203 is displaced so as to overlap the receiving portion 412B3 of the jig 410A when viewed from the X-axis direction and to assume a posture corresponding to the opening of the receiving portion 412B3 in the main surface S1.

[0060] Next, the controller Ctr instructs the driving units 340, 520 to insert the insert 14 into the receiving portion 412 of the jig 410A while abutting the blocking member 510 against the main surface S2 of the jig 410A (see FIG. 5). For example, the controller Ctr instructs the driving unit 340 to advance the push-out member 330 in a state in which the holding unit 320 releases the holding (chuck) of the insert 14, thereby inserting the insert 14 into the receiving portion 412 of the jig 410A.

[0061] Specifically, as shown by the diagonal lines in Fig. 6 and Fig. 7(a), the insert 14F2 held by the holding portion 3201 is inserted into the receiving portion 412F2 of the jig 410A. That is, the insert 14F2 is disposed in the receiving portion 412F2 located at the lower position of the two receiving portions 412F1, 412F2 constituting the opening OPF1. The insert 14A1 held by the holding portion 3202 is inserted into the receiving portion 412A1 of the jig 410A. That is, the insert 14A1 is disposed in the receiving portion 412A1 located at the lower position of the two receiving portions 412A1, 412A2 constituting the opening OPA1. The insert 14A4 held by the holding portion 3203 is inserted into the receiving portion 412A4 of the jig 410A. That is, the insert 14A4 is placed in the receiving portion 412A4 located at the lower of the two receiving portions 412A3, 412A4 constituting the opening OPA2. The insert 14B3 held by the holding portion 3204 is inserted into the receiving portion 412B3 of the jig 410A. That is, the insert 14B3 is placed in the receiving portion 412B3 located at the lower of the two receiving portions 412B3, 412B4 constituting the opening OPB2.

[0062] During the process in which the holding section 320 holds the inserts 14 from the weighing section 200 and inserts them into the receiving sections 412, four new inserts 14 may be placed on the weighing section 200 by the transport mechanism. After being weighed by the weighing section 200, these four new inserts 14 are inserted into the corresponding receiving sections 412 by the holding unit 300, similar to the inserts 14 already inserted into the holding section 320. By repeating this series of processes, the inserts 14 are inserted into all of the receiving sections 412 of the jig 410A.

[0063] Here, a case will be described where the four new inserts 14 following the inserts 14F2, 14A1, 14A4, and 14B3 are the inserts 14A2, 14B1, 14B4, and 14C3. As shown by the diagonal lines in FIG. 7(b), the insert 14A2 held by the holding portion 3201 is inserted into the receiving portion 412A2 of the jig 410A. That is, the insert 14A2 is placed in the receiving portion 412A2 located at the upper position of the two receiving portions 412A1 and 412A2 constituting the opening OPA1. At this time, since the insert 14A1 has already been inserted into the receiving portion 412A1, the insert 14A2 is prevented from falling into the receiving portion 412A1. The insert 14B1 held by the holding portion 3202 is inserted into the receiving portion 412B1 of the jig 410A. That is, the insert 14B1 is placed in the receiving portion 412B1 located at the lower position of the two receiving portions 412B1, 412B2 constituting the opening OPB1. The insert 14B4 held by the holding portion 3203 is inserted into the receiving portion 412B4 of the jig 410A. That is, the insert 14B4 is placed in the receiving portion 412B4 located at the upper position of the two receiving portions 412B3, 412B4 constituting the opening OPB2. At this time, since the insert 14B3 has already been inserted into the receiving portion 412B3, the insert 14B4 is prevented from falling into the receiving portion 412B3. The insert 14C3 held by the holding portion 3204 is inserted into the receiving portion 412C3 of the jig 410A. That is, of the two receiving portions 412C3 and 412C4 constituting the opening OPC2, the insert 14C3 is placed in the receiving portion 412C3 which is located at the lower side.

[0064] Next, a case will be described where the four new inserts 14 following the inserts 14A2, 14B1, 14B4, and 14C3 are the inserts 14B2, 14C1, 14C4, and 14D3. As shown by the diagonal lines in FIG. 8(a), the insert 14B2 held by the holding portion 3201 is inserted into the receiving portion 412B2 of the jig 410A. That is, the insert 14B2 is placed in the receiving portion 412B2 located at the upper position of the two receiving portions 412B1 and 412B2 constituting the opening OPB1. At this time, since the insert 14B1 has already been inserted into the receiving portion 412B1, the insert 14B2 is prevented from falling into the receiving portion 412B1. The insert 14C1 held by the holding portion 3202 is inserted into the receiving portion 412C1 of the jig 410A. That is, the insert 14C1 is placed in the receiving portion 412C1 located at the lower position of the two receiving portions 412C1, 412C2 constituting the opening OPC1. The insert 14C4 held by the holding portion 3203 is inserted into the receiving portion 412C4 of the jig 410A. That is, the insert 14C4 is placed in the receiving portion 412C4 located at the upper position of the two receiving portions 412C3, 412C4 constituting the opening OPC2. At this time, since the insert 14C3 has already been inserted into the receiving portion 412C3, the insert 14C4 is prevented from falling into the receiving portion 412C3. The insert 14D3 held by the holding portion 3204 is inserted into the receiving portion 412D3 of the jig 410A. That is, of the two receiving portions 412D3 and 412D4 constituting the opening OPD2, the insert 14D3 is placed in the receiving portion 412D3 which is located at the lower side.

[0065] Next, a case will be described where the four new inserts 14 following the inserts 14B2, 14C1, 14C4, and 14D3 are the inserts 14E2, 14F1, 14F4, and 14A3. As shown by the diagonal lines in FIG. 8(b), the insert 14E2 held by the holding portion 3201 is inserted into the receiving portion 412E2 of the jig 410A. That is, the insert 14E2 is placed in the receiving portion 412E2 located at the lower position of the two receiving portions 412E1 and 412E2 constituting the opening OPE1. The insert 14F1 held by the holding portion 3202 is inserted into the receiving portion 412F1 of the jig 410A. That is, the insert 14F1 is placed in the receiving portion 412F1 located at the upper position of the two receiving portions 412F1 and 412F2 constituting the opening OPF1. At this time, since the insert 14F2 has already been inserted into the receiving portion 412F2, the insert 14F1 is prevented from falling into the receiving portion 412F2. The insert 14F4 held by the holding portion 3203 is inserted into the receiving portion 412F4 of the jig 410A. That is, the insert 14F4 is placed in the receiving portion 412F4 located at the lower position of the two receiving portions 412F3 and 412F4 constituting the opening OPF2. The insert 14A3 held by the holding portion 3204 is inserted into the receiving portion 412A3 of the jig 410A. That is, the insert 14A3 is placed in the receiving portion 412A3 located at the upper position of the two receiving portions 412A3 and 412A4 constituting the opening OPA2. At this time, since the insert 14A4 has already been inserted into the receiving portion 412A4, the insert 14A3 is prevented from falling into the receiving portion 412A4.

[0066] Next, a case will be described where the four new inserts 14 following the inserts 14E2, 14F1, 14F4, and 14A3 are the inserts 14D2, 14E1, 14E4, and 14F3. As shown by the diagonal lines in FIG. 9(a), the insert 14D2 held by the holding portion 3201 is inserted into the receiving portion 412D2 of the jig 410A. That is, the insert 14D2 is placed in the receiving portion 412D2 located at the lower position of the two receiving portions 412D1 and 412D2 constituting the opening OPD1. The insert 14E1 held by the holding portion 3202 is inserted into the receiving portion 412E1 of the jig 410A. That is, the insert 14E1 is placed in the receiving portion 412E1 located at the upper position of the two receiving portions 412E1 and 412E2 constituting the opening OPE1. At this time, since the insert 14E2 has already been inserted into the receiving portion 412E2, the insert 14E1 is prevented from falling into the receiving portion 412E2. The insert 14E4 held by the holding portion 3203 is inserted into the receiving portion 412E4 of the jig 410A. That is, the insert 14E4 is placed in the receiving portion 412E4 located at the lower position of the two receiving portions 412E3 and 412E4 constituting the opening portion OPE2. The insert 14F3 held by the holding portion 3204 is inserted into the receiving portion 412F3 of the jig 410A. That is, the insert 14F3 is placed in the receiving portion 412F3 located at the upper position of the two receiving portions 412F3 and 412F4 constituting the opening portion OPF2. At this time, since the insert 14F4 has already been inserted into the receiving portion 412F4, the insert 14F3 is prevented from falling into the receiving portion 412F4.

[0067] Next, a case will be described where the four new inserts 14 following the inserts 14D2, 14E1, 14E4, and 14F3 are the inserts 14C2, 14D1, 14D4, and 14E3. As shown by the diagonal lines in FIG. 9(b), the insert 14C2 held by the holding portion 3201 is inserted into the receiving portion 412C2 of the jig 410A. That is, the insert 14C2 is placed in the receiving portion 412C2 located at the upper position of the two receiving portions 412C1 and 412Ctr2 constituting the opening OPC1. At this time, since the insert 14C1 has already been inserted into the receiving portion 412C1, the insert 14C2 is prevented from falling into the receiving portion 412C1. The insert 14D1 held by the holding portion 3202 is inserted into the receiving portion 412D1 of the jig 410A. That is, the insert 14D1 is placed in the receiving portion 412D1 located at the upper position of the two receiving portions 412D1, 412D2 constituting the opening OPD1. At this time, since the insert 14D2 has already been inserted in the receiving portion 412D2, the insert 14D1 is prevented from falling into the receiving portion 412D2. The insert 14D4 held by the holding portion 3203 is inserted into the receiving portion 412D4 of the jig 410A. That is, the insert 14D4 is placed in the receiving portion 412D4 located at the upper position of the two receiving portions 412D3, 412D4 constituting the opening OPD2. At this time, since the insert 14D3 has already been inserted in the receiving portion 412D3, the insert 14D4 is prevented from falling into the receiving portion 412D3. The insert 14E3 held by the holder 3204 is inserted into the receiving portion 412E3 of the jig 410A. That is, the insert 14E3 is placed in the receiving portion 412E3, which is located at the upper side of the two receiving portions 412E3, 412E4 constituting the opening OPE2. At this time, since the insert 14E4 has already been inserted into the receiving portion 412E4, the insert 14E3 is prevented from falling into the receiving portion 412E4.

[0068] When the inserts 14 are inserted into all the receiving portions 412 of the jig 410A, the controller Ctr instructs the driving portion 440 to rotate the jigs 410A and 410B via the connecting member 420 and the rotating shaft 430 until the positions of the jigs 410A and 410B are switched (see FIG. 3). As a result, the jig 410A, the jig 610 in a lying state holding the laminate 12, and the base portion 710 are aligned in the X-axis direction. Meanwhile, the jig 410B, which has been switched in position with the jig 410A, and the blocking member 510 are aligned in the X-axis direction. As a result, the receiving portions 18 of the laminate 12, the receiving portions 412 of the jig 410A, and the extrusion member 720 are overlapped in the X-axis direction.

[0069] Next, the controller Ctr instructs the driving units 620 and 730 to clamp the jig 410A between the stack 12 and the base unit 611, and the base unit 710. This causes the pushing member 720 to push out the insert 14 in the receiving unit 412 toward the receiving units 18 of the stack 12. This causes the insert 14 to be inserted into all of the receiving units 18 of the stack 12 at approximately the same time.

[0070] Here, while the insert 14 is being inserted into the receiving portion 412 of the jig 410B, a process may be performed in which the insert 14 is inserted from the jig 410A into the receiving portion 18 of the stack 12. Note that, after this process is completed, the controller Ctr may instruct the drive unit 440 to rotate the jigs 410A and 410B again so that the positions of the jigs 410A and 410B are swapped in order to insert the insert 14 into the receiving portion 18 of the new stack 12. Thereafter, the pusher member 720 may insert the insert 14 from the receiving portion 412 of the jig 410B toward the receiving portion 18 of the new stack 12.

[0071] The jig 610 holding the laminate 12 with the insert 14 inserted in the receiving section 18 is brought into an upright position and transported to a resin injection device (not shown). The resin injection device may be configured to, for example, hold the laminate 12 together with the jig 610 between a support mold and a heating mold in which a resin material (e.g., a resin tablet, a resin powder, etc.) is placed in a resin pot, melt the resin material in the resin pot, and inject it into the receiving section 18. The molten resin injected into the receiving section 18 then solidifies, completing the rotor laminated core 10.

[0072] [Effect] According to the above example, the holding portion 320 is displaced to bring the posture of the insert 14 into a state corresponding to the receiving portion 412, and then the insert 14 is inserted into the receiving portion 412. Therefore, even if the receiving portions 412 have different modes (shapes, postures, etc.), the multiple inserts 14 can be inserted into the corresponding receiving portions 412 at approximately the same time. This makes it possible to efficiently produce the rotor laminated core 10.

[0073] According to the above example, the insert 14 may be inserted first into the receiving portion 412 located relatively lower in the opening OP, and then another insert 14 may be inserted into the receiving portion 412 located relatively higher in the opening OP. In this case, it is possible to prevent the insert 14 inserted first into the opening OP from moving downward and interfering with the insert 14 inserted later into the opening OP. Therefore, it is possible to properly position the insert 14 in the receiving portion 412.

[0074] According to the above example, one insert 14 held by the holding portion 320 and another insert 14 can be inserted into the receiving portions 412 in different regions of the jig 410 at approximately the same time. For example, the inserts 14 can be inserted into the receiving portions 412A1 and 412A4 in the region TA, the receiving portion 412F2 in the region TF, and the receiving portion 412B3 in the region TB at approximately the same time. That is, all the inserts 14 held by the holding portion 320 do not have to be inserted into the receiving portions 412 in the same region of the jig 410 at approximately the same time. In this case, the receiving portions 412 into which the inserts 14 are inserted are located relatively far from each other, so that the displacement of the holding portion 320 is less likely to be restricted. Therefore, all the holding portions 320 can be effectively used, so that the rotor laminated core 10 can be produced more efficiently.

[0075] According to the above example, the insert 14 can be inserted into the receiving portion 412 by pushing the insert 14 from the holding portion 320 toward the receiving portion 412 of the jig 410 with the pusher member 330. Also, the insert 14 can be inserted into the receiving portion 18 by pushing the receiving portion 412 from the jig 410 toward the receiving portion 18 of the laminate 12 with the pusher member 720. In this case, it is possible to quickly insert the insert 14 into the receiving portions 412, 18 with a simple configuration.

[0076] According to the above example, with the blocking member 510 disposed on the main surface S2 of the jig 410, the insert 14 can be inserted from the holding portion 320 into the receiving portion 412 of the jig 410. In this case, when the insert 14 is inserted into the receiving portion 412, the insert 14 is prevented from falling out of the receiving portion 412. Therefore, the insert 14 can be more reliably disposed in the receiving portion 412.

[0077] According to the above example, the insert 14 may be inserted into the receiving portion 412 of the jig 410, the position of the insert 14 may be adjusted in the receiving portion 412, and then the insert 14 may be inserted from the jig 410 into the receiving portion 18 of the stack 12. In this case, the insert 14 may be quickly and accurately inserted into the receiving portion 18 of the stack 12, which is the final destination of the insert 14.

[0078] According to the above example, while the inserts 14 are being replenished in the receiving portion 412 of the jig 410B, the inserts 14 may be transferred from the receiving portion 412 of the jig 410A to the receiving portion 18 of the laminated body 12, which is the final destination. In this case, the replenishment and transfer of the inserts 14 are performed at approximately the same time, which allows the rotor laminated core 10 to be produced more efficiently.

[0079] [Variations] The disclosure in this specification should be considered to be illustrative and not restrictive in all respects. Various omissions, substitutions, modifications, etc. may be made to the above examples without departing from the scope of the claims and the gist thereof.

[0080] (1) A set of multiple inserts 14 may be inserted into one receiving portion 18, 412. In this case, the multiple inserts 14 may be arranged in the receiving portion 18, 412 in the longitudinal direction of the receiving portion 18, 412 or in a direction intersecting the longitudinal direction. Multiple inserts 14 may be inserted into one receiving portion 18, 412 at the same time, or multiple inserts 14 may be inserted separately.

[0081] (2) The direction of insertion of the insert 14 into the receiving portion 18, 412 is not particularly limited. That is, the insertion direction may be a direction along the horizontal direction, a diagonally upward direction, a diagonally downward direction, a downward direction, or an upward direction. When the insert 14 is inserted into the receiving portion 18, 412 from below, the insertion device 100 may further include a mechanism (e.g., a shutter mechanism) that supports the insert 14 after the insert 14 is inserted into the receiving portion 18, 412.

[0082] (3) The inserts 14 may be inserted into multiple receiving portions 412 in the same region of the jig 410 at approximately the same time.

[0083] (4) A plurality of jigs 410 may be used to insert the inserts 14 into the receiving portions 18 of one laminate 12. For example, the inserts 14 may be inserted into some of the receiving portions 18 through the receiving portions 412 of the jig 410A, and then the inserts 14 may be inserted into the remaining receiving portions 18 through the receiving portions 412 of the jig 410B.

[0084] (5) The insert 14 may be inserted directly into the receiving portion 18 of the laminate 12 through the holding portion 320 .

[0085] (6) This technology may be applied when placing a resin material in a heated resin pot of a resin injection device. That is, the insert 14 may be a resin material (e.g., a resin tablet, a resin powder). In this case, the insert 14 may be inserted into a receiving part of a jig once, and then the resin material may be inserted from the jig into the heated resin pot, or the resin material may be directly inserted from the holding part 320 into the heated resin pot.

[0086] (7) One guide path 312 may include a plurality of positions corresponding to at least two of the plurality of receiving portions 412 of the jig 410. In this case, the number of postures or positions that one holding portion 320 can take increases, so that one guide path 312 can be used to accommodate various types of received objects with different postures or positions. One guide path 312 may include, for example, a first position corresponding to one receiving portion 412 of the jig 410 and a second position corresponding to the other receiving portion 412 of the jig 410. One guide path 312 may be configured, for example, as a long hole that branches into two in the middle in order to go from one end to the first position or the second position.

[0087] [Other examples] Example 1. An example of a manufacturing method for an iron core product may include a first step in which a first retaining portion provided on a holding unit holds a first insert and a second retaining portion provided on the holding unit holds a second insert, a second step in which, after the first step, at least one of the first retaining portion and the second retaining portion is displaced so that the attitude of the first insert corresponds to the opening of the first receiving portion provided on a first main surface of the first insert and the attitude of the second insert corresponds to the opening of the second receiving portion provided on the first main surface, and a third step in which, after the second step, with the holding unit positioned to face the first main surface, the first insert is inserted from the first retaining portion into the first receiving portion and the second insert is inserted from the second retaining portion into the second receiving portion.

[0088] Incidentally, when manufacturing an iron core product, there is a process of inserting inserts (e.g., magnetic material, resin tablet, etc.) into a plurality of receiving parts provided in a receiving object (e.g., a main body constituting an iron core product, a jig, etc.). The opening shape of the receiving part may differ depending on the type of iron core product, for example, rectangular, arc-shaped, bent, etc. In addition, the orientation of the opening of one receiving part may differ from the orientation of the opening of other insertion holes. For this reason, it has been difficult to place the inserts in all receiving parts at once. Therefore, it is common for a worker or a working robot to insert the inserts into the receiving parts one by one while adjusting the posture of the inserts according to the mode of the receiving part (the opening shape of the receiving part, the opening orientation of the receiving part, etc.), and this work requires a long time. Particularly in recent years, in order to improve the performance of motors, the number of receiving parts has increased and the opening shapes and opening postures of the receiving parts have tended to become more diverse, and further improvement in productivity has been required.

[0089] However, according to Example 1, at least one holding portion is displaced to bring the postures of the first and second inserts into the first and second receiving portions, respectively, and then the first and second inserts are inserted into the first and second receiving portions, respectively. Therefore, even if the first and second receiving portions have different configurations, the first and second inserts can be inserted into the first and second receiving portions, respectively, at approximately the same time. This makes it possible to efficiently produce iron core products.

[0090] Example 2. The method of Example 1 may further include a fourth step, after the third step, of the first retaining portion holding a third insert and the second retaining portion holding a fourth insert, a fifth step, after the fourth step, of displacing at least one of the first retaining portion and the second retaining portion so that the orientation of the third insert corresponds to the opening of the third receiving portion provided on the first main surface and the orientation of the fourth insert corresponds to the opening of the fourth receiving portion provided on the first main surface, and a sixth step, after the fifth step, of inserting the third insert from the first retaining portion into the third receiving portion and inserting the fourth insert from the second retaining portion into the fourth receiving portion with the holding unit positioned to face the first main surface.

[0091] Example 3 In the method of Example 2, the openings of the first receiving portion and the third receiving portion in the first main surface may be integrated to form one common opening, and in the sixth step, the first portion of the opening corresponding to the opening of the third receiving portion may be located above the second portion so as to move downward toward the second portion of the opening corresponding to the opening of the first receiving portion. In this case, the first insert is inserted first into the second portion of the opening that is located relatively lower, and then the third insert is inserted into the first portion of the opening that is located relatively higher. This prevents the insert inserted first into the opening from moving downward and interfering with the insert inserted later into the opening. This allows the insert to be properly positioned in the receiving portion.

[0092] Example 4 In the method of Example 1 or Example 2, the core product is a rotor core, the first receiving portion is located in a first region of the first main surface, and the second receiving portion is located in a second region of the first main surface different from the first region, and the first region and the second region may correspond to different magnetic poles among the multiple magnetic poles configured in the rotor core. However, when there are multiple receiving portions in a predetermined region of the first object, these multiple receiving portions tend to be close to each other. Therefore, even if it is attempted to insert the inserts into the multiple receiving portions in the predetermined region at approximately the same time, it may be difficult to displace the holding portion due to physical constraints of the holding unit. However, according to Example 4, the first receiving portion is located in the first region, and the second receiving portion is located in a second region different from the first region. Therefore, since the first and second receiving portions are located relatively far apart, it is difficult to restrict the displacement of the holding portion. Therefore, all of the holding portions can be effectively utilized, making it possible to more efficiently produce iron core products.

[0093] Example 5 In any of the methods of Examples 1 to 4, the first receiver may further include a second main surface located opposite to the first main surface, the first receiver and the second receiver are each through holes extending from the first main surface to the second main surface, and the third step may include inserting the first insert from the first holder into the first receiver and inserting the second insert from the second holder into the second receiver, with the holding unit arranged to face the first main surface and a blocking member arranged on the second main surface to block the opening of the first receiver and the opening of the second receiver in the second main surface. In this case, when the insert is inserted into the receiver of the first receiver, the insert is prevented from falling out of the receiver. Therefore, it is possible to more reliably place the insert in the receiver of the first receiver.

[0094] Example 6 Any of the methods of Examples 1 to 5 may further include a seventh step of inserting the first insert in the first receiver into the fifth receiver and inserting the second insert in the second receiver into the sixth receiver, with the first and second receivers arranged such that the first receiver communicates with the fifth receiver of the second receiver and the second receiver communicates with the sixth receiver of the second receiver after the third step. In this case, the insert is once inserted into the receiver of the first receiver and its position is adjusted in the receiver, and then it is further inserted from the receiver of the first receiver into the receiver of the second receiver. Therefore, it is possible to quickly and accurately insert the insert into the receiver of the second receiver, which is the final destination of the insert.

[0095] Example 7 In the method of Example 6, the seventh step may include inserting each of the inserts arranged in all the receptacles of the first receptacle into the corresponding receptacle of the second receptacle while inserting each of the inserts into all the receptacles of the third receptacle. In this case, in the seventh step, the inserts are inserted from the receptacle of the first receptacle into the receptacle of the second receptacle at approximately the same time that the holding unit inserts the insert into the receptacle of the third receptacle, which is different from the first and second receptacles. That is, when the inserts are being replenished into one of the first and third receptacles, the inserts are transferred from the other of the first and third receptacles to the receptacle that is the final destination. Therefore, since the replenishment and transfer of the inserts are performed at approximately the same time, it is possible to more efficiently produce iron core products.

[0096] Example 8. An example of an apparatus for manufacturing an iron core product may include a receiving object including a first main surface, a first receiving portion having an opening provided in the first main surface, and a second receiving portion having an opening provided in the first main surface, a holding unit including a first holding portion configured to hold the first insert, and a second holding portion configured to hold the second insert, and a control portion. The control unit may be configured to execute a first process of controlling the first holding unit and the second holding unit to hold the first insert and the second holding unit to hold the second insert, a second process of controlling the holding unit after the first process to displace at least one of the first holding unit and the second holding unit so that the orientation of the first insert corresponds to the opening of the first receiving unit and the orientation of the second receiving unit corresponds to the opening of the second receiving unit, a third process of controlling at least one of the receiving unit and the holding unit to position the holding unit relative to the receiving unit so that the holding unit faces the first main surface, and a fourth process of controlling the holding unit after the third process to insert the first insert from the first holding unit into the first receiving unit and insert the second insert from the second holding unit into the second receiving unit. In this case, the same effect as that of the method of Example 1 can be obtained. [Explanation of symbols]

[0097] 10...rotor laminated core (iron core product), 12...laminated body (received item), 14...inserted item, 18...receiving part, 100...insertion device, 300...holding unit, 320...holding part, 330...extrusion member, 400...jig unit, 410...jig (received item), 500...blocking unit, 510...blocking member, Ctr...controller (control part), OP...opening, RA~RF, TA~TF...areas, S, S1, S2...main surfaces.

Claims

1. a first step in which a first chuck provided on a holding unit holds a first insert and a second chuck provided on the holding unit holds a second insert; a second step of moving the first chuck and the second chuck independently along a first guide path and a second guide path provided in a base portion of the holding unit while rotating the first chuck and the second chuck about imaginary axes passing through their centers, so that the posture of the first insert corresponds to the opening of a first receiving portion provided in a first main surface of a first receiver and the posture of the second insert corresponds to the opening of a second receiving portion provided in the first main surface; and A method for manufacturing an iron core product, comprising: after the second step, a third step of inserting the first insert from the first chuck into the first receiving portion, and inserting the second insert from the second chuck into the second receiving portion, with the holding unit positioned so as to face the first main surface.

2. A first step in which a first chuck provided on a holding unit holds a first insert and a second chuck provided on the holding unit holds a second insert; a second step of moving the first chuck and the second chuck, which are aligned along a horizontal direction, independently of each other along a first guide path and a second guide path provided in a base portion of the holding unit, so that the posture of the first insert corresponds to the opening of a first receiving portion provided in a first main surface of a first receiver, and the posture of the second insert corresponds to the opening of a second receiving portion provided in the first main surface; and a third step, after the second step, of inserting the first insert from the first chuck into the first receiving portion, and inserting the second insert from the second chuck into the second receiving portion, with the holding unit arranged to face the first main surface; A manufacturing method for an iron core product, wherein the first guide path and the second guide path are each a straight path, a curved path or a bent path.

3. a fourth step after the third step, in which the first chuck holds a third insert and the second chuck holds a fourth insert; a fifth step of displacing at least one of the first chuck and the second chuck after the fourth step such that a posture of the third insert corresponds to an opening of a third receiving portion provided on the first main surface, and a posture of the fourth insert corresponds to an opening of a fourth receiving portion provided on the first main surface; 3. The method according to claim 1 or 2, further comprising a sixth step, after the fifth step, of inserting the third insert from the first chuck into the third receiving portion and inserting the fourth insert from the second chuck into the fourth receiving portion with the holding unit positioned facing the first main surface.

4. the openings of the first receiving portion and the fourth receiving portion in the first main surface are integrated to form a single common opening, 4. The method of claim 3, wherein in the sixth step, a first portion of the opening corresponding to the opening of the fourth receiving portion is positioned above the second portion so as to descend toward a second portion of the opening corresponding to the opening of the first receiving portion.

5. The core product is a rotor core, the first receiving portion is located in a first region of the first main surface; the second receiving portion is located in a second region of the first main surface that is different from the first region, The method according to any one of claims 1 to 4, wherein the first region and the second region correspond to different magnetic poles among a plurality of magnetic poles formed in the rotor core.

6. the first receiver further includes a second major surface opposite the first major surface; the first receiving portion and the second receiving portion are each a through hole extending from the first main surface to the second main surface, The method according to any one of claims 1 to 5, wherein the third step includes inserting the first insert from the first chuck into the first receiving portion and inserting the second insert from the second chuck into the second receiving portion with the holding unit positioned facing the first main surface and a blocking member positioned on the second main surface so as to block the opening of the first receiving portion and the opening of the second receiving portion in the second main surface.

7. 7. The method according to claim 1, further comprising a seventh step, after the third step, of inserting the first insert in the first receiver into the fifth receiver and inserting the second insert in the second receiver into the sixth receiver, with the first receiver and the second receiver positioned such that the first receiver communicates with a fifth receiver of the second receiver and the second receiver communicates with a sixth receiver of the second receiver.

8. 8. The method of claim 7, wherein the seventh step includes inserting each of the inserts disposed in all of the receptacles of the first receptacle into a corresponding receptacle of the second receptacle while inserting an insert into each of the receptacles of a third receptacle.

9. A receiver including a first main surface, a first receiving portion having an opening on the first main surface, and a second receiving portion having an opening on the first main surface; A holding unit including a first chuck configured to hold a first insert, a second chuck configured to hold a second insert, and a base portion provided with a first guideway and a second guideway; A control unit. The control unit is a first process for controlling the first chuck and the second chuck to cause the first chuck to hold the first insert and the second chuck to hold the second insert; a second process of controlling the holding unit after the first process to move the first chuck and the second chuck independently along the first guide path and the second guide path while rotating the first chuck and the second chuck about imaginary axes passing through their centers, so that the posture of the first insert corresponds to the opening of the first receiving portion and the posture of the second insert corresponds to the opening of the second receiving portion; a third process of controlling at least one of the object and the holding unit after the second process to position the holding unit relative to the object such that the holding unit faces the first main surface; An apparatus for manufacturing an iron core product, configured to perform a fourth process of controlling the holding unit after a third process to insert the first insert from the first chuck into the first receiving portion and to insert the second insert from the second chuck into the second receiving portion.

10. A receiver including a first main surface, a first receiving portion having an opening on the first main surface, and a second receiving portion having an opening on the first main surface; A holding unit including a first chuck configured to hold a first insert, a second chuck configured to hold a second insert, and a base portion provided with a first guideway and a second guideway; A control unit. each of the first guide path and the second guide path is a straight path, a curved path, or a bent path; The control unit is a first process for controlling the first chuck and the second chuck to cause the first chuck to hold the first insert and the second chuck to hold the second insert; a second process of controlling the holding unit after the first process to move the first chuck and the second chuck, which are aligned along a horizontal direction, independently along the first guide path and the second guide path, so that the attitude of the first insert corresponds to the opening of the first receiving portion and the attitude of the second insert corresponds to the opening of the second receiving portion; The apparatus for manufacturing an iron core product is configured to perform a third process of controlling the holding unit after the second process to insert the first insert from the first chuck into the first receiving portion and insert the second insert from the second chuck into the second receiving portion while the holding unit is positioned so as to face the first main surface.

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