WO2023145210A1 - 電機子の製造方法 - Google Patents
電機子の製造方法 Download PDFInfo
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- WO2023145210A1 WO2023145210A1 PCT/JP2022/042933 JP2022042933W WO2023145210A1 WO 2023145210 A1 WO2023145210 A1 WO 2023145210A1 JP 2022042933 W JP2022042933 W JP 2022042933W WO 2023145210 A1 WO2023145210 A1 WO 2023145210A1
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- WIPO (PCT)
- Prior art keywords
- tool
- axial direction
- core
- tooth
- robot manipulator
- Prior art date
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 29
- 238000005452 bending Methods 0.000 claims description 15
- 210000000707 wrist Anatomy 0.000 claims description 7
- 239000010410 layer Substances 0.000 description 59
- 238000000034 method Methods 0.000 description 29
- 239000011229 interlayer Substances 0.000 description 19
- 238000006073 displacement reaction Methods 0.000 description 6
- 230000033001 locomotion Effects 0.000 description 5
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 238000003892 spreading Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000004323 axial length Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 239000012636 effector Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
- H02K15/04—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of windings, prior to mounting into machines
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
- H02K15/08—Forming windings by laying conductors into or around core parts
- H02K15/085—Forming windings by laying conductors into or around core parts by laying conductors into slotted stators
Definitions
- the present disclosure relates to a method for manufacturing an armature.
- International Publication No. 2019/093515 discloses a method of processing segment coils by twisting ends of leg portions of segment coils protruding from the end face of a core in an armature of a rotating electric machine.
- the ends of the twisted segment coil legs are electrically joined to each other by welding or the like.
- a plurality of segment coils are stacked in a plurality of layers in the radial direction of the core and arranged in an annular shape. Then, the ends of the segment coil legs projecting from the core end surface are twisted.
- a loosening process (interlayer spreading process) is performed before this twisting process.
- the loosening member of the interlayer spreading member is moved in the radial direction and the axial direction of the core to radially separate the ends of the segment coil legs of each layer, thereby separating the ends of the segment coil legs of each layer. gap is enlarged. As a result, the complexity and trouble of aligning the ends of the segment coil legs with respect to the twisting jig can be reduced, and the work efficiency in the twisting process can be improved.
- the present disclosure provides an armature manufacturing method that can effectively suppress displacement of the segment coils in the axial direction of the core when the ends of the segment coil leg portions are bent in the radial direction of the core. for the purpose.
- a method of manufacturing an armature according to a first aspect includes a core having a plurality of slots formed thereon, both leg portions inserted into each slot of the core, and a plurality of layers stacked in a radial direction of the core to form an annular shape.
- a method of manufacturing an armature having a plurality of aligned segment coils wherein both leg portions of the plurality of segment coils are inserted into respective slots of the core from one axial side of the core, A base of a portion protruding from the end surface of the terminal of the layer is clamped in the radial direction by a clamp, and a tool having at least one tooth is moved by a robot manipulator to move the at least one tooth between the terminal of each layer. A tooth is inserted, and the tool is rotated outward in the radial direction by the robot manipulator about the clamped portion of the root by the clamp to tilt the at least one tooth with respect to the axial direction.
- a core having a plurality of slots formed therein and both leg portions are inserted into each of the slots of the core, and are stacked in a plurality of layers in the radial direction of the core and arranged in an annular shape.
- An armature comprising a plurality of segmented coils is manufactured.
- both leg portions of a plurality of segment coils are inserted into respective slots of the core from one axial side of the core.
- the roots of the projecting portions from the end face at the ends of the segment coil leg portions of each layer are held by clamps in the radial direction of the core.
- a tool having at least one tooth is moved by a robot manipulator, and at least one tooth is inserted between the terminal ends of the segment coil leg portions of each layer, and the tool is moved by the robot around the clamped portion of the root by the clamp as the center of rotation.
- the manipulator rotates the core radially outward.
- at least one tooth of the tool is inclined with respect to the axial direction of the core, and the ends of the segment coil legs engaged with at least one tooth of the tool are bent with the center of rotation as a bending starting point.
- the force applied to the segment coil in the axial direction of the core is reduced. Thereby, it is possible to effectively suppress the displacement of the segment coil in the axial direction of the core.
- the center of return set to the other side in the axial direction of the clamping portion of the root by the clamp is The tool is rotated inward in the radial direction by the robot manipulator as a center of rotation to align the at least one tooth along the axial direction.
- the tool is moved radially inward of the core by the robot manipulator about the return center as the center of rotation. so that at least one tooth of the tool is axially aligned with the core.
- the ends of the segment coil legs engaged with at least one tooth of the tool are bent along the axial direction of the core with the return center as the bending starting point, and take a predetermined shape.
- a method of manufacturing an armature according to a third aspect is characterized in that, in the first aspect, after inclining the at least one tooth, the tool is moved inward in the radial direction and in the axial direction by the robot manipulator while the tooth is in the inclined state. moving in the other direction and then rotating the tool in the one axial direction about the wrist bending axis of the robotic manipulator to align the at least one tooth in the axial direction.
- the tool is moved radially inward and axially of the core by the robot manipulator while maintaining the tilted state. is moved in the other direction.
- the tool is then rotated about the fifth axis of the robot manipulator to one axial side of the core so that at least one tooth is axially along the core.
- the ends of the segment coil legs that are engaged with at least one tooth of the tool are bent along the axial direction of the core and formed into a predetermined shape.
- the segment coil can be effectively suppressed from being displaced in the axial direction of the core.
- a fourth aspect of the armature manufacturing method is characterized in that, in the first aspect, after the at least one tooth is inclined, the tool is moved to the other side in the axial direction by the robot manipulator while maintaining the inclined state. and then rotating the tool about the wrist bending axis of the robotic manipulator to one side in the axial direction to align the at least one tooth in the axial direction, and then moving the tool by the robotic manipulator in the radial direction. move inward.
- the tool is moved to the other axial side of the core by the robot manipulator while maintaining the tilted state. be done.
- the tool is then rotated about the fifth axis of the robot manipulator to one axial side of the core so that at least one tooth is axially along the core.
- the tool is then moved radially inwardly of the core by the robot manipulator.
- the tool Since the tool is moved to the other axial side of the core with at least one tooth being inclined as described above, the tool is then rotated to the one axial side of the core about the wrist bending axis of the robot manipulator.
- This configuration can also effectively suppress the displacement of the segment coil in the axial direction of the core.
- the method of manufacturing an armature according to the present disclosure effectively suppresses displacement of the segment coils in the axial direction of the core when the ends of the leg portions of the segment coils are bent in the radial direction of the core. can.
- FIG. 4 is a perspective view showing a state in the middle of manufacturing the stator by the method for manufacturing the armature according to the embodiment; It is a front view showing a segment coil. It is a side view which shows a segment coil. It is a top view which shows a segment coil.
- FIG. 4 is a plan view for explaining a method of inserting segment coil legs into respective slots of the stator core;
- FIG. 10 is a cross-sectional view for explaining a segment coil pushing step;
- FIG. 4 is a side view showing the configuration of the periphery including the main part of the interlayer expansion device;
- FIG. 4 is a side view showing a state in which leg portions of segment coils overlapping multiple layers are clamped by clamps;
- FIG. 11 is a side view showing a state in which tips of comb teeth of a tool are inserted between terminal ends of segment coil leg portions of each layer;
- FIG. 8 is an enlarged side view showing an enlarged part of FIG. 7;
- FIG. 5 is a side view showing a state in which a tool having comb teeth inserted between ends of segment coil legs of each layer is rotated radially outward of the stator core;
- FIG. 4 is a side view showing a state in which the tool is rotated radially inward of the stator core about the return center.
- FIG. 11 is a side view showing a state where ends of segment coil leg portions of the outer layer are bent by a pusher;
- FIG. 10 is a side view showing a state in which the pushers are spaced apart from the ends of the segment coil legs of the outer layer;
- FIG. 4 is an enlarged side view showing a state in which comb teeth of a tool are pulled out from between ends of segment coil leg portions of each layer;
- FIG. 11 is a side view showing a state in which the tool is moved radially inward and axially to the other axial side of the stator core while the tool remains in an inclined state in the first modified example;
- FIG. 11 is a side view showing a state in which the tool is rotated about the fifth axis of the robot manipulator to one axial side of the stator core in the first modified example;
- FIG. 11 is a side view showing a state in which the tool is moved to the other side in the axial direction of the stator core while being inclined, in the second modified example;
- FIG. 12 is a side view showing a state in which the tool is rotated about the fifth axis of the robot manipulator to one axial direction side of the stator core in the second modified example;
- FIG. 11 is a side view showing a state in which the tool is moved radially inward of the stator core by the robot manipulator in the second modified example;
- FIG. 1 is a perspective view showing a state in the middle of manufacturing a stator 10 manufactured by the method for manufacturing an armature according to the present embodiment.
- the stator 10 (stator; armature) includes a stator core 14 formed with a large number of slots 16, both legs 42A and 42B inserted into each of the slots 16 of the stator core 14, and a plurality of layers formed in a radial direction of the stator core 14. and a large number of segment coils (flat wire coils) 40 that are superimposed and arranged in an annular shape.
- the stator core 14 corresponds to the "core" in the present disclosure.
- the stator core 14 is formed in a cylindrical shape by stacking a large number of electromagnetic steel sheets.
- a large number of slots 16 are formed in the inner peripheral portion of the stator core 14 .
- the multiple slots 16 are open on both axial sides and radially inside of the stator core 14 . 4 to 7 and 9 to 18, arrows Y1, Y2, and X indicate one axial direction, the other axial direction, and the radial direction of the stator core 14, respectively.
- the axial direction of the stator core 14 may simply be referred to as the "axial direction”
- the radial direction of the stator core 14 may simply be referred to as the "radial direction”
- the circumferential direction of the stator core 14 may simply be referred to as the "circumferential direction”.
- the segment coil 40 is manufactured by molding a rectangular wire made of copper or the like covered with an insulating coating into a U shape, and has a pair of legs extending parallel to each other. It is composed of portions 42A and 42B and a bent portion (turn portion) 44 connecting one end portions of the pair of leg portions 42A and 42B.
- the leg portion 42A on one side in the circumferential direction is formed slightly longer in the axial direction than the leg portion 42B on the other side in the circumferential direction.
- the insulating coating is removed from the distal end portions of the leg portions 42A and 42B.
- the central portion of the bent portion 44 is bent in a crank shape so that one end side of the bent portion 44 is radially displaced from the other end side of the bent portion 44 .
- the bent portion 44 By forming the bent portion 44, the radial positional relationship between the leg portion 42A and the leg portion 42B is changed. As a result, a plurality of segment coils 40 are laminated in the radial direction, as indicated by a two-dot chain line in FIG. 2C.
- the leg portions 42A and 42B of the multiple segment coils 40 are inserted into the respective slots 16 of the stator core 14 from one side in the axial direction, and are stacked in multiple layers in the radial direction of the stator core 14. are arranged in a ring. As shown in FIG. 3, one layer is formed by sequentially inserting the segment coils 40 into the slots 16 while shifting them one by one in the circumferential direction. In this embodiment, as shown in FIG. 4, three layers 46A, 46B, 46C of segment coil 40 are formed. In this embodiment, as an example, a retaining portion 18 (see FIG. 3) is formed at the radially inner end of each slot 16 to prevent the segment coil 40 from falling out of the slot 16 .
- the axial length of the leg portions 42A, 42B of the segment coil 40 increases from the inner layer 46A to the outer layer 46C in the three layers 46A, 46B, 46C. It is designed to be progressively longer. 3 and 4, in each slot 16, one leg portion 42A of one segment coil 40 is connected to the other leg portion 42A of the other segment coil 40 for each layer 46A, 46B, 46C. It overlaps radially outward with respect to the side leg portion 42B.
- the insertion of a large number of segment coils 40 into the stator core 14 is performed by, for example, setting a large number of segment coils 40 in an annular alignment jig to form an assembly of the segment coils 40 aligned in an annular shape.
- a method of inserting the whole assembly into each slot 16 of the stator core 14 can be adopted.
- a method of inserting the segment coils 40 one by one into each slot 16 of the stator core 14 may be adopted. Whichever method is adopted, the large number of segment coils 40 are inserted only halfway into each slot 16 of the stator core 14 . Therefore, after inserting a large number of segment coils 40 into the respective slots 16 of the stator core 14 , a pushing step is performed to further push the large number of segment coils 40 into the stator core 14 .
- the step of pushing a large number of segment coils 40 is performed using the first jig 50 and the second jig 60 shown in FIG. Due to this pushing process, a large number of segment coils 40 are pushed to the positions set with respect to the stator core 14 .
- the terminals of the legs 42A, 42B protrude from the end surface 14A on the other axial side of the stator core 14 toward the outer layer 46C from the inner layer 46A of the plurality of layers 46A, 46B, 46C.
- the amount increases step by step.
- the leg portions 42A and 42B of the segment coil 40 may be simply referred to as "leg portion 42".
- the interlayer expansion process is performed.
- the stator 10 after the pushing process is placed on a turntable (not shown) with the terminals of the leg portions 42 of the plurality of segment coils 40 facing upward. 5 schematically illustrates the bent portions 44 of the plurality of segment coils 40.
- the turntable described above constitutes a part of the interlayer enlarging device 70 shown in FIG.
- the interlayer expansion device 70 is used to expand radial gaps between the ends of the leg portions 42 of the layers 46A, 46B, and 46C (hereinafter simply referred to as "terminal gaps").
- This gap widening is performed sequentially for each slot 16 as an example.
- This widening of the gap causes the multiple (here six) legs 42 inserted into the same slot 16 to be spaced apart from each other in pairs 42A, 42B of each layer 46A, 46B, 46C.
- reference numeral 48 denotes insulating paper (not shown in FIGS. 1, 3 and 4) for insulating the leg portion 42 of the segment coil 40 from the stator core 14. As shown in FIG.
- the interlayer expansion device 70 described above includes a robot manipulator 72 , a tool 74 , a clamp 78 and a pusher 84 .
- the robot manipulator 72 constitutes, for example, a main body of a 6-axis vertical articulated robot, and its operation is controlled by a controller (not shown).
- ⁇ indicates the rotation angle of the robot manipulator 72 around the fifth axis.
- This fifth axis corresponds to the "wrist bending axis" in the present disclosure.
- the tool 74 is an end effector attached to the tip of the robot manipulator 72 and made of metal, for example.
- This tool 74 has comb teeth 76 formed in the shape of comb teeth.
- the comb tines 76 have a plurality of (here, three) teeth 76 A, 76 B, 76 C spaced apart in the axial direction of the sixth axis of the robot manipulator 72 .
- the three teeth 76A, 76B, and 76C are formed in a plate shape with the thickness direction being the axial direction of the sixth shaft and the longitudinal direction being the radial direction of the sixth shaft.
- the tool 74 is arranged above the stator 10 in such a posture that the three teeth 76A, 76B, 76C extend downward and the alignment direction of the three teeth 76A, 76B, 76C is the same as the radial direction. In this state, the three teeth 76A, 76B, and 76C are in a posture in which the single-edged inclined surfaces face radially outward. Note that the tool 74 may have at least one tooth.
- the clamp 78 has an inner diameter side coil retainer 80 and an outer diameter side coil retainer 82 .
- the inner diameter side coil retainer 80 and the outer diameter side coil retainer 82 are formed in a plate shape from metal, for example.
- the inner coil retainer 80 is arranged radially inward of the stator core 14 with respect to the root of the projecting portion from the end face 14A of the stator core 14 at the end of the leg portion 42A of the inner layer 46A.
- the outer diameter side coil retainer 82 is arranged radially outside of the stator core 14 with respect to the root of the projecting portion from the end surface 14A of the stator core 14 at the end of the leg portion 42B of the outer layer 46C.
- inner coil retainer 80 and outer coil retainer 82 are moved in the radial direction of the stator core 14 by an actuator (not shown) (see arrows A and B in FIG. 5).
- the inner diameter side coil retainer 80 and the outer diameter side coil retainer 82 can radially clamp the roots of the protruding portions from the end surface 14A at the ends of the leg portions 42 of the layers 46A, 46B, and 46C.
- the pusher 84 is made of resin, for example, in the shape of a block, and is arranged radially outside the stator core 14 with respect to the tip of the protruding portion from the end surface 14A of the stator core 14 at the end of the leg portion 42B of the outer layer 46C. be done.
- the pusher 84 is radially moved by an actuator (not shown) (see arrow C in FIG. 5). This pusher 84 can push the ends of the leg portions 42 of the outer layer 46C radially inward.
- the inter-layer expansion device 70 having the above configuration performs the inter-layer expansion process by controlling the operations of the robot manipulator 72, the turntable, and each actuator described above by a controller (not shown).
- a controller not shown.
- this interlayer expansion step first, as shown in FIG. 6, the roots of the protruding portions from the end surface 14A of the stator core 14 at the ends of the leg portions 42 of the layers 46A, 46B, and 46C are radially clamped by the clamps 78 ( See arrow A1 and arrow B1 in FIG. 6).
- the tool 74 is axially and radially moved by the robot manipulator 72 (see arrows D1, E1 and D2 in FIG. 7).
- the tips of the comb teeth 76 of the tool 74 are inserted between the ends of the legs 42 of each layer 46A, 46B, 46C.
- the tips of teeth 76B of comb teeth 76 are inserted between layers 46A and 46B
- the tips of teeth 76C of comb teeth 76 are inserted between layers 46B and 46C.
- the tool 74 is moved axially to one side (downward) by the robot manipulator 72 so that the teeth 76B and 76C of the comb teeth 76 are inserted between the ends of the legs 42 of the layers 46A, 46B and 46C. be done.
- the portions of the legs 42 of the layers 46A, 46B, and 46C held by the clamps 78 that is, the roots of the protruding portions from the stator core end face 14A at the ends of the legs 42 of the layers 46A, 46B, and 46C
- the tool 74 is rotated outward in the radial direction by the robot manipulator 72 (see the arrow F1 in FIG. 9) with the center of rotation at the point K1 in FIG. Thereby, the comb teeth 76 are inclined with respect to the axial direction.
- the comb teeth 74 are inclined with respect to the axial direction, and the ends of the legs 42 of the layers 46A, 46B, and 46C engaged with the teeth 76A, 76B, and 76C of the comb teeth 76 are bent with the rotation center K1 as a starting point. It is bent radially outward.
- the tool 74 is moved radially inward by the robot manipulator 72 around the return center K2 set on the other side (upper side) in the axial direction of the gripped portion of the root by the clamp 78 as the rotation center. (see arrow F2 in FIG. 10), and the comb teeth 76 extend along the axial direction.
- the ends of the legs 42 of the layers 46A, 46B engaged with the teeth 76A, 76B, 76C of the comb teeth 76 are bent along the axial direction with the return center K2 as a bending starting point, and are formed into a predetermined shape ( approximately crank shape).
- the pusher 84 is moved radially inward (see arrow C1 in FIG. 11).
- This pusher 84 presses the ends of the leg portions 42 of the outer layer 46C inward in the radial direction and assumes the same shape (substantially crank shape) as the ends of the leg portions 42 of the layers 46A and 46B.
- Pushers 84 are then moved radially outward (see arrow C2 in FIG. 12) and away from the ends of legs 42 of outer layer 46C, as shown in FIG.
- the tool 74 is moved to the other side (upper side) in the axial direction by the robot manipulator 72 (see arrow D3 in FIG.
- interlayer expansion processing is performed for each slot 16, but the present invention is not limited to this.
- interlayer expansion processing may be performed for each of the plurality of slots 16 .
- the robot manipulator 72 may be made to perform the motions shown in FIGS. 14 and 15, after the comb teeth 76 of the tool 74 are tilted with respect to the axial direction as shown in FIG. 9, the tool 74 is tilted as shown in FIG. In this state, it is moved radially inward and axially to the other side by the robot manipulator 72 (see arrow G1 in FIG. 14). Thereafter, as shown in FIG. 15, the tool 74 is rotated to one side in the axial direction about the fifth axis of the robot manipulator 72 (see arrow F3 in FIG. 15), and the comb teeth 76 are axially aligned.
- the robot manipulator 72 may perform the motions shown in FIGS. 16 to 18, the comb teeth 76 of the tool 74 are tilted with respect to the axial direction as shown in FIG. 9, and then the tool 74 is tilted as shown in FIG. It is moved to the other side in the axial direction by the robot manipulator 72 while maintaining the state (see arrow G2 in FIG. 16). Thereafter, as shown in FIG. 17, the tool 74 is rotated to one side in the axial direction about the fifth axis of the robot manipulator 72 (see arrow F4 in FIG. 17), and the comb teeth 76 are axially aligned. Thereafter, as shown in FIG.
- the tool 74 is moved radially inward by the robot manipulator 72 (see arrow E2 in FIG. 18).
- the ends of the legs 42 of the layers 46A, 46B engaged with the teeth 76A, 76B, 76C of the comb teeth 76 are bent into a substantially crank shape.
- the operations shown in FIGS. 12 and 13 are performed to complete the interlayer expansion process.
- both legs 42A and 42B are inserted into the respective slots 16 of the stator core 14, and the plurality of layers 46A and 46B are arranged in the radial direction of the stator core 14. , 46C and arranged in an annular shape.
- both legs 42A and 42B of a plurality of segment coils 40 are inserted into slots 16 of stator core 14 from one axial side of stator core 14, respectively.
- the amount of protrusion of the end of the leg portion 42 from the end face 14A on the other axial side of the stator core 14 is increased stepwise from the inner layer 46A to the outer layer 46C of the plurality of layers 46A, 46B, and 46C. is set to The roots of protruding portions from the end face 14A at the ends of the leg portions 42 of the layers 46A, 46B, 46C are clamped by clamps 78 in the radial direction of the core.
- a tool 74 having comb teeth 76 is moved by the robot manipulator 72, and the comb teeth 76 are inserted between the terminal ends of the segment coil leg portions of each layer, and the tool is rotated with the portion of the root clamped by the clamp 78 as the center of rotation K1. 74 are rotated radially outward by the robot manipulator 72 (see FIG. 9).
- the comb teeth 76 of the tool 74 are inclined with respect to the axial direction, and the ends of the legs 42 of the layers 46A, 46B, 46C engaged with the teeth 76A, 76B, 76C of the comb teeth 76 bend the center of rotation K1. It is bent radially outward as a starting point.
- the axial force applied to the segment coil 40 is reduced. As a result, it is possible to effectively prevent the segment coil 40 from being displaced in the axial direction.
- the return center K2 set on the other side in the axial direction of the clamping portion of the root by the clamp 78 is set.
- a tool 74 as the center of rotation is rotated inward in the radial direction by the robot manipulator 72, and the comb teeth 76 are along the axial direction.
- the ends of the legs 42 of the layers 46A, 46B engaged with the teeth 76A, 76B, 76C of the comb teeth 76 are bent along the axial direction with the return center K2 as the bending starting point, forming a substantially crank shape.
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Abstract
Description
本実施形態に係るステータの製造方法では、複数のスロット16が形成されたステータコア14と、ステータコア14の各スロット16に両脚部42A、42Bが挿入され、ステータコア14の径方向に複数層46A、46B、46Cに重ねられて円環状に整列された複数のセグメントコイル40とを備えたステータ10が製造される。この製造方法では、複数のセグメントコイル40の両脚部42A、42Bがステータコア14の各スロット16に対してステータコア14の軸方向一方側からそれぞれ挿入される。ステータコア14の軸方向他方側の端面14Aからの脚部42の端末の突出量は、上記複数の層46A、46B、46Cの内側の層46Aから外側の層46Cへ向かうほど段階的に長くなるように設定される。各層46A、46B、46Cの脚部42の端末における端面14Aからの突出部分の根元は、クランプ78によってコアの径方向に挟持される。
Claims (4)
- 複数のスロットが形成されたコアと、前記コアの各スロットに両脚部が挿入され、前記コアの径方向に複数の層状に重ねられて円環状に整列された複数のセグメントコイルとを備えた電機子の製造方法であって、
前記複数のセグメントコイルの両脚部を前記コアの各スロットに対して前記コアの軸方向一方側からそれぞれ挿入し、
各前記層の前記端末における前記端面からの突出部分の根元をクランプによって前記径方向に挟持し、
少なくとも一つの歯を有するツールをロボットマニピュレータで移動させて各前記層の前記端末間に前記少なくとも一つの歯を挿入し、
前記クランプによる前記根元の挟持部分を回転中心として前記ツールを前記ロボットマニピュレータにより前記径方向の外側へ回転させて前記少なくとも一つの歯を前記軸方向に対して傾斜させる電機子の製造方法。 - 前記少なくとも一つの歯を傾斜させた後、前記クランプによる前記根元の挟持部分よりも前記軸方向他方側に設定した戻し中心を回転中心として前記ツールを前記ロボットマニピュレータにより前記径方向の内側へ回転させて前記少なくとも一つの歯を前記軸方向に沿わせる請求項1に記載の電機子の製造方法。
- 前記少なくとも一つの歯を傾斜させた後、当該傾斜状態のままで前記ツールを前記ロボットマニピュレータにより前記径方向の内側かつ前記軸方向他方側へ移動させ、その後に前記ツールを前記ロボットマニピュレータの手首曲げ軸回りに前記軸方向一方側へ回転させて前記少なくとも一つの歯を前記軸方向に沿わせる請求項1に記載の電機子の製造方法。
- 前記少なくとも一つの歯を傾斜させた後、当該傾斜状態のままで前記ツールを前記ロボットマニピュレータにより前記軸方向他方側へ移動させ、その後に前記ツールを前記ロボットマニピュレータの手首曲げ軸回りに前記軸方向一方側へ回転させて前記少なくとも一つの歯を前記軸方向に沿わせ、その後に前記ツールを前記ロボットマニピュレータにより前記径方向の内側へ移動させる請求項1に記載の電機子の製造方法。
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JP2015047039A (ja) * | 2013-08-29 | 2015-03-12 | 本田技研工業株式会社 | 回転電機の製造方法 |
WO2019093515A1 (ja) | 2017-11-13 | 2019-05-16 | 株式会社小田原エンジニアリング | コイルセグメント加工方法、コイルセグメント加工装置及びコイルセグメントの接続構造 |
WO2021144898A1 (ja) * | 2020-01-15 | 2021-07-22 | 株式会社 東芝 | 固定子の製造方法 |
WO2021149624A1 (ja) * | 2020-01-22 | 2021-07-29 | 株式会社小田原エンジニアリング | コイルセグメントのツイスト方法、ツイスト治具及びツイスト装置 |
JP2022009725A (ja) | 2017-09-07 | 2022-01-14 | 株式会社イノアックコーポレーション | 車両用内装材の成形装置及び車両用内装材の製造方法 |
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JP2015047039A (ja) * | 2013-08-29 | 2015-03-12 | 本田技研工業株式会社 | 回転電機の製造方法 |
JP2022009725A (ja) | 2017-09-07 | 2022-01-14 | 株式会社イノアックコーポレーション | 車両用内装材の成形装置及び車両用内装材の製造方法 |
WO2019093515A1 (ja) | 2017-11-13 | 2019-05-16 | 株式会社小田原エンジニアリング | コイルセグメント加工方法、コイルセグメント加工装置及びコイルセグメントの接続構造 |
WO2021144898A1 (ja) * | 2020-01-15 | 2021-07-22 | 株式会社 東芝 | 固定子の製造方法 |
WO2021149624A1 (ja) * | 2020-01-22 | 2021-07-29 | 株式会社小田原エンジニアリング | コイルセグメントのツイスト方法、ツイスト治具及びツイスト装置 |
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