Motor manufacturing device

Abstract

To provide a motor manufacturing device capable of accurately positioning a stator core while suppressing damage to the stator core.SOLUTION: A motor manufacturing device 1 is a device for manufacturing a motor including a stator core 50 formed by laminating a plurality of plate-shaped members 51, and comprises a supporting section 10 which supports the stator core 50 and a positioning section 20 which positions the stator core 50 in the supporting section 10. Either or both of the supporting section 10 and the positioning section 20 are movable relative to the stator core 50 in a state where the supporting section 10 is abutted against a surface 50a of the stator core 50. The stator core 50 includes a through hole 53 formed along a lamination direction, and the positioning section 20 includes a positioning pin 20 inserted into the through hole 53. The supporting section 10 forms a movable part 10, which can be brought into contact with the surface of the stator core 50, around the positioning pin 20.SELECTED DRAWING: Figure 3

Description

[Technical field]

[0001] The present invention relates to a motor manufacturing apparatus used for assembling a stator core, etc. [Background technology]

[0002] Conventionally, in the manufacture of motors used in automobile parts and the like, an insulator is assembled to a stator core (for example, Patent Document 1). The stator core has a structure in which a plurality of electromagnetic steel plates are laminated, and the stator core is provided with a through hole for mounting to a case or the like after completion. The conventional technology described in Patent Document 1 also discloses a configuration in which a positioning pin erected on a mounting table is inserted into a through hole in the stator core. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2019-122212 A Summary of the Invention [Problem to be solved by the invention]

[0004] However, the conventional technology described in Patent Document 1 had a problem that when removing the positioning pin from the through hole after the positioning of the stator core was completed, the positioning pin got caught on the electromagnetic steel sheet around the through hole, causing the electromagnetic steel sheet to turn over. If the electromagnetic steel sheet turns over in this way, there is a concern that it may cause problems such as a decrease in motor performance and instability in the bolt tightening axial force when fixing the stator.

[0005] SUMMARY OF THE PRESENT DISCLOSURE An object of the present invention is to provide a motor manufacturing apparatus capable of accurately positioning a stator core while suppressing damage to the stator core during motor manufacturing. [Means for solving the problem]

[0006] (1) The motor manufacturing apparatus of the present invention provided to solve the above-mentioned problems is a motor manufacturing apparatus for manufacturing a motor having a stator core formed by stacking a plurality of plate-shaped members, and is characterized in that it comprises a support portion that supports the stator core and a positioning portion that positions the stator core on the support portion, and either or both of the support portion and the positioning portion are movable relative to the stator core with the support portion abutting the surface of the stator core.

[0007] In the motor manufacturing apparatus described above, when the support portion is in contact with the surface of the stator core, either or both of the support portion and the positioning portion can move relative to the stator core. This allows the motor manufacturing apparatus to release the positioning portion from the stator core when the support portion is in contact with the surface of the stator core, thereby preventing the plate-like member (e.g., an electromagnetic steel plate) in the stator core from turning over. Therefore, the motor manufacturing apparatus described above can prevent the performance of the motor from deteriorating, and can also prevent the bolt tightening axial force from becoming unstable when the stator is fixed.

[0008] (2) In the motor manufacturing apparatus of the present invention described above, it is preferable that the stator core has a through hole formed along the stacking direction, the positioning portion has a positioning pin inserted into the through hole, and the support portion forms a movable portion around the positioning pin that can abut against a surface of the stator core.

[0009] The motor manufacturing device described above, by configuring as described above, can perform positioning while abutting the movable part against the periphery of the through hole on the surface of the stator core, and can remove the stator core (remove the positioning pin). As a result, the motor manufacturing device described above can suppress deterioration of motor performance, and can also suppress instability of the bolt tightening axial force when fixing the stator.

[0010] (3) In the motor manufacturing apparatus of the present invention described above, the positioning pin may be characterized in that it has a reduced diameter portion at its tip side that is reduced in diameter, and the movable portion is movable relative to the positioning pin to a position where at least a portion of the reduced diameter portion is accommodated.

[0011] The motor manufacturing apparatus described above, by being configured as described above, can make the support part abut against the surface of the stator core around the positioning pin until the positioning pin reaches the reduced diameter part when removing the positioning pin inserted into the through hole of the stator core. In other words, the motor manufacturing apparatus described above can make the support part abut against the surface of the stator core around the positioning pin until the difference between the inner diameter of the through hole and the outer diameter of the positioning pin becomes large when removing the positioning pin from the through hole of the stator core. Therefore, the motor manufacturing apparatus described above can further suppress the curling of the electromagnetic steel sheet in the stator core. As a result, the motor manufacturing apparatus described above can suppress damage to the motor, suppress deterioration of the motor's performance, and also suppress instability of the bolt tightening axial force when fixing the stator.

[0012] (4) In the motor manufacturing apparatus of the present invention described above, the movable portion may be formed as a sleeve into which the positioning pin can be inserted.

[0013] With this configuration, the motor manufacturing apparatus described above can use the sleeve to appropriately press the surface around the through hole in the stator core, which can more reliably prevent the magnetic steel sheet from curling over, thereby preventing a decrease in motor performance and preventing instability in the bolt tightening axial force when the stator is fixed.

[0014] (5) In the motor manufacturing apparatus of the present invention described above, the stator core has a through hole formed along the stacking direction, the positioning portion has a positioning pin inserted into the through hole, the movable portion is formed as a sleeve through which the positioning pin can be inserted, and supports the sleeve movably along the stacking direction of the stator core, and further comprises a base portion through which the positioning pin can be inserted, and a biasing member provided on the base portion for biasing the sleeve toward a surface of the stator core, the positioning pin being movable relative to the sleeve and the stator core, and when the positioning pin is inserted into the through hole, the sleeve abuts against the periphery of the through hole.

[0015] The motor manufacturing apparatus described above is configured as described above, so that the sleeve as the movable part is biased toward the surface of the stator core by the biasing member. In addition, the motor manufacturing apparatus described above is configured so that the positioning pin is movable relative to the sleeve and the stator core. Therefore, the motor manufacturing apparatus described above can reliably abut the sleeve against the periphery of the through hole when the positioning pin is inserted into the through hole of the stator core. As a result, the motor manufacturing apparatus described above can reliably prevent the electromagnetic steel sheet from turning over even if the positioning pin gets caught on the electromagnetic steel sheet around the through hole when removing the positioning pin after insertion into the through hole. Therefore, the motor manufacturing apparatus described above can prevent the motor from being damaged, can prevent the performance of the motor from being deteriorated, and can also prevent the bolt tightening axial force from becoming unstable when the stator is fixed. Here, the biasing member may be, for example, various springs such as coil springs, cylinders, dampers, or air pressure, gas pressure, or the like. Effect of the Invention

[0016] According to the present invention, it is possible to provide a motor manufacturing apparatus that can accurately position a stator core while suppressing damage to the stator core during motor manufacturing. [Brief description of the drawings]

[0017] [Figure 1] FIG. 1(a) is a plan view of a motor manufacturing apparatus according to an embodiment of the present invention, and FIG. 1(b) is a partially cutaway front view of the motor manufacturing apparatus of FIG. 1(a). [Diagram 2] 1 is an enlarged cross-sectional view of a main portion of a motor manufacturing apparatus according to an embodiment of the present invention. [Diagram 3] 3(a) is a plan view of a stator core provided to a motor manufacturing apparatus according to an embodiment of the present invention, and (b) is a cross-sectional view taken along the line AA in FIG. 3(a). [Figure 4] 4(a) is an explanatory diagram showing the state in which a positioning pin is inserted into a through hole when positioning a stator core in a motor manufacturing apparatus according to one embodiment of the present invention, and FIG. 4(b) is an explanatory diagram showing the state when the positioning pin is removed from the state shown in FIG. 4(a). DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0018] A motor manufacturing apparatus 1 according to an embodiment of the present invention will be described in detail below with reference to the drawings. Note that each drawing is a schematic representation for easy understanding, and may differ from the actual shape, size, and arrangement of components. Also, note that hatching may be omitted in cross sections in each drawing.

[0019] First, prior to describing the motor manufacturing apparatus 1, a stator core 50 provided to the motor manufacturing apparatus 1 will be described with reference to FIGS. 3(a) and 3(b).

[0020] The stator core 50 is formed by stacking a plurality of annular plate-like members 51 (in this embodiment, electromagnetic steel plates 51). The stator core 50 is provided with three attachment portions 52, 52, 52 that protrude in a circular shape radially outward at the outer periphery.

[0021] A through hole 53 is formed at approximately the center of each of the mounting portions 52, 52, 52, extending along the lamination direction (vertical direction) of the electromagnetic steel sheets 51. The through hole 53 can be used, for example, for mounting the completed stator core 50 to a case, or for positioning during motor manufacture (for example, assembly of a stator and an insulator, etc.).

[0022] Next, the motor manufacturing apparatus 1 of the present invention will be described in detail with reference to FIGS.

[0023] The motor manufacturing apparatus 1 of the present invention is used for manufacturing a motor including a stator core 50. In this embodiment, a case will be described as an example in which the stator core 50 is transported to a support section 10 of the motor manufacturing apparatus 1 by an appropriate transport means (not shown).

[0024] The motor manufacturing apparatus 1 includes a machine frame 5 that serves as a machine base. On the machine frame 5 of the motor manufacturing apparatus 1, a support portion 10, a positioning pin 20 (also referred to as a positioning portion 20), a base portion 30, and a spring 35 (also referred to as a biasing member 35) are provided.

[0025] In this embodiment, the machine frame 5 is formed in a plate shape and has three extensions 5a, 5b, and 5c formed to extend radially outward at intervals of 120 degrees. A positioning pin 20 is erected near the tip of each of the extensions 5a, 5b, and 5c on the radially outer side. A cylindrical base portion 30 is erected around each of the positioning pins 20 in the extensions 5a, 5b, and 5c. Since the support portion 10, positioning pin 20, base portion 30, etc. in the extensions 5a, 5b, and 5c have the same configuration, in the following description, a single one will be described as a representative unless there is a particular need to distinguish between them.

[0026] The base portion 30 is fixed to the machine frame 5. The base portion 30 has a base end side of the positioning pin 20 inserted therethrough. A spring 35 (also referred to as a biasing member 35) is provided on the outer periphery of the positioning pin 20 inserted into the base portion 30. The base portion 30 supports a support portion 10 (also referred to as a movable portion 10 or a sleeve 10) described below so as to be movable along the lamination direction of the stator core 50, and allows the positioning pin 20 to be inserted therethrough.

[0027] The support parts 10 are intended to support the stator core 50. Moreover, the support parts 10 form a movable part (hereinafter also referred to as the movable part 10) that can come into contact with a surface 50a of the stator core 50 around the positioning pin 20. Moreover, a main body support part 15 for supporting an inner part (main body part) of the stator core 50 is provided inside the three support parts 10, 10, 10.

[0028] The movable part 10 is formed as a cylindrical sleeve (hereinafter also referred to as sleeve 10), and a positioning pin 20 can be inserted therein. In this embodiment, a flat surface 11 is formed at a tip 21 of the movable part 10 on the stator core 50 side. The flat surface 11 is formed around (on the outer periphery) of the positioning pin 20, and is adapted to abut against a surface 50a on the lower surface side of the stator core 50. This allows the movable part 10 to support the periphery of the through hole 53 on the surface 50a of the stator core 50. In addition, the main body portion of the stator core 50 is supported by a main body support part 15.

[0029] One end (base end) of the spring 35 is supported on the machine frame 5, and the other end (upper end) supports the base end (lower end) of the movable part 10 described below. That is, the spring 35 functions as a biasing member (also referred to as biasing member 35) that biases the movable part 10 toward the surface 50a of the stator core 50. Note that in this embodiment, a coil spring is used as the biasing member 35, but the biasing member 35 can be configured with various biasing means such as a cylinder, a damper, or one using air pressure or gas pressure.

[0030] The base end side of the movable part 10 is slidably fitted inside the base part 30, and is biased upward by a spring 35. Therefore, the movable part 10 is capable of vertical movement with respect to the base part 30, and of relative movement with respect to the positioning pin 20. In other words, the movable part 10 and the positioning pin 20 can move in mutually opposite directions.

[0031] The positioning pin 20 is formed in a cylindrical shape, and the base end side is fixed to the machine frame 5 and is formed to extend upward. In this embodiment, the positioning pin 20 is formed to a length that partially protrudes from the flat surface 11 on the upper part of the movable part 10. The amount of protrusion of the positioning pin 20 from the movable part 10 may be appropriately changed depending on the positioning aspect. Also, in this embodiment, the tip part 21 of the positioning pin 20 is reduced in diameter to be slightly smaller than the through hole 53 for positioning in the stator core 50 so that it can be inserted into the through hole 53.

[0032] As shown in FIG. 2, a reduced diameter portion 22 having a diameter smaller than that of the positioning pin 20 is formed at a tip portion 21 of the positioning pin 20. In this embodiment, for ease of understanding, the reduced diameter portion 22 is formed in a truncated cone shape as an example, but the shape of the reduced diameter portion 22 is not limited to this and can be formed in various shapes. The positioning pin 20 is inserted into the through hole 53 of the stator core 50 when the stator core 50 is supported on the support portion 10. At this time, since the movable portion 10 is biased by the spring 35, the movable portion 10 is pushed down against the spring 35 as the stator core 50 descends. As a result, the positioning pin 20 is further inserted toward the inside of the through hole 53, and the positioning of the stator core 50 to the movable portion 10 is completed (see FIG. 4(a)). On the other hand, when positioning is complete, the stator core 50 is raised (moved relative to the movable part 10 and the positioning pin 20), and the positioning pin 20 is removed from the through hole 53 with the movable part 10 (flat surface 11) abutting against the surface 50a (around the through hole 53) of the stator core 50. Although details will be described later, at this time, the movable part 10 moves relative to the positioning pin 20 to a position where at least a part of the reduced diameter part 22 is accommodated.

[0033] The above is the configuration of the motor manufacturing apparatus 1 according to one embodiment of the present invention, and next, the positioning operation of the stator core 50 in the motor manufacturing apparatus 1 will be described in detail with reference to Figures 4(a) and 4(b). Note that since the configurations of the movable parts 10, positioning pins 20, etc. in the three locations are similar, the movable part 10 at the left end in Figure 1 will be used as an example for the description.

[0034] 4(a), when the stator core 50 is supported near a predetermined position on the movable part 10, the reduced diameter portion 22 of the positioning pin 20 protruding from the movable part 10 (flat surface 11) is inserted into the through hole 53 of the stator core 50. When the stator core 50 is further pressed toward the movable part 10, the movable part 10 is pressed down to the lower end position against the spring 35, and the positioning pin 20 is further inserted into the through hole 53. As a result, the stator core 50 is positioned relative to the movable part 10 and is supported by the movable part 10. In this embodiment, the main body portion of the stator core 50 is supported by the main body support portion 15 in addition to being supported by the movable part 10.

[0035] 4(b), with the surface 50a of the stator core 50 being supported by (in contact with) the movable part 10, the positioning pin 20 moves relative to the stator core 50, and the positioning pin 20 is removed from the through hole 53. In other words, with the movable part 10 biased toward the surface 50a of the stator core 50 around the through hole 53, the positioning pin 20 moves relative to the stator core 50 and the movable part 10.

[0036] More specifically, in this embodiment, the stator core 50 is raised while the movable part 10 is biased toward the surface 50a of the stator core 50, and the positioning pin 20 is removed from the through hole 53. At this time, the movable part 10 is maintained in contact with the stator core 50 by the bias of the spring 35 until at least the stroke amount pushed in during positioning is recovered. In addition, the movable part 10 moves relative to the positioning pin 20 to a position where at least a part of the reduced diameter part 22 of the positioning pin 20 is accommodated, so that the support (pressure) of the surface 50a of the stator core 50 is maintained until the part of the positioning pin 20 having approximately the same diameter as the through hole 53 is removed. In other words, the surface 50a of the stator core 50 is supported by the movable part 10 until at least the part of the positioning pin 20 having a large diameter is completely removed from the through hole 53, so that the electromagnetic steel sheet 51 of the stator core 50 can be prevented from turning over. Furthermore, when the force of the spring 35 on the movable part 10 is released, the reduced diameter part 22 of the positioning pin 20 is positioned near the opening end of the through hole 53, thereby preventing the positioning pin 20 from getting caught on the stator core 50 (electromagnetic steel plate 51), further preventing damage to the stator core 50.

[0037] What has been described above is one embodiment of the motor manufacturing apparatus 1 of the present invention. Next, the effects achieved by the motor manufacturing apparatus 1 of the present invention will be described below.

[0038] The above-described motor manufacturing apparatus 1 has the following characteristic configurations (A) to (G). Therefore, the motor manufacturing apparatus 1 can achieve the following unique effects that cannot be achieved by the conventional techniques.

[0039] (A) The motor manufacturing apparatus 1 of this embodiment is a motor manufacturing apparatus 1 for manufacturing a motor having a stator core 50 formed by stacking a plurality of plate-shaped members 51, and is characterized in that it comprises a support portion 10 that supports the stator core 50 and a positioning portion 20 that positions the stator core 50 on the support portion 10, and either or both of the support portion 10 and the positioning portion 20 are capable of moving relative to the stator core 50 with the support portion 10 in contact with a surface 50a of the stator core 50.

[0040] In the above-described motor manufacturing apparatus 1, when the support portion 10 is in contact with the surface 50a of the stator core 50, either or both of the support portion 10 and the positioning portion 20 can move relative to the stator core 50. As a result, the above-described motor manufacturing apparatus 1 can remove the positioning portion 20 from the stator core 50 when the support portion 10 is in contact with the surface 50a of the stator core 50, thereby preventing the plate-like member 51 (electromagnetic steel plate 51, etc.) in the stator core 50 from turning over. Therefore, the above-described motor manufacturing apparatus 1 can prevent a decrease in performance of the motor (not shown), and can also prevent the bolt tightening axial force from becoming unstable when the stator (not shown) is fixed.

[0041] (B) In the motor manufacturing apparatus 1 of this embodiment, the stator core 50 has a through hole 53 formed along the stacking direction, the positioning portion 20 has a positioning pin 20 that is inserted into the through hole 53, and the support portion 10 forms a movable portion 10 around the positioning pin 20 that can abut against the surface 50a of the stator core 50.

[0042] By configuring the motor manufacturing apparatus 1 as described above, it is possible to perform positioning while abutting the movable part 10 against the periphery of the through hole 53 in the surface 50a of the stator core 50, and to remove the stator core 50 (remove the positioning pin 20). As a result, the motor manufacturing apparatus 1 described above can suppress deterioration in motor performance, and can also suppress instability in the bolt tightening axial force when the stator is fixed.

[0043] (C) In the motor manufacturing apparatus 1 of this embodiment, the positioning pin 20 has a reduced diameter portion 22 at the tip side which is reduced in diameter, and the movable part 10 is capable of moving relative to the positioning pin 20 to a position where at least a portion of the reduced diameter portion 22 is accommodated.

[0044] The motor manufacturing apparatus 1 described above has such a configuration, and when removing the positioning pin 20 inserted into the through hole 53 of the stator core 50, the support portion 10 can be brought into contact with the surface 50a of the stator core 50 around the positioning pin 20 until the positioning pin 20 reaches the reduced diameter portion 22. In other words, when removing the positioning pin 20 from the through hole 53 of the stator core 50, the motor manufacturing apparatus 1 described above can bring the support portion 10 into contact with the surface 50a of the stator core 50 around the positioning pin 20 until the difference between the inner diameter of the through hole 53 and the outer diameter of the positioning pin 20 becomes large. Therefore, the motor manufacturing apparatus 1 described above can further suppress the curling of the electromagnetic steel sheet 51 in the stator core 50. As a result, the motor manufacturing apparatus 1 described above can suppress damage to the motor, suppress a decrease in the performance of the motor, and suppress instability of the bolt tightening axial force when the stator is fixed.

[0045] (D) The motor manufacturing apparatus 1 of this embodiment is characterized in that the movable portion 10 is formed as a sleeve 10 through which the positioning pin 20 can be inserted.

[0046] With this configuration, the motor manufacturing apparatus 1 described above can use the sleeve 10 to appropriately press the surface 50a around the through hole 53 in the stator core 50. This allows the motor manufacturing apparatus 1 described above to more reliably suppress curling of the electromagnetic steel sheet 51, thereby suppressing deterioration in motor performance and also suppressing instability in the bolt tightening axial force when the stator is fixed.

[0047] (E) In the motor manufacturing apparatus 1 of the present invention described above, the stator core 50 has a through hole 53 formed along the stacking direction, the positioning portion 20 has a positioning pin 20 inserted into the through hole 53, the movable portion 10 is formed as a sleeve 10 through which the positioning pin 20 can be inserted, and is equipped with a base portion 30 that supports the sleeve 10 movably along the stacking direction of the stator core 50 and through which the positioning pin 20 can be inserted, and a biasing member 35 that is provided on the base portion 30 and biases the sleeve 10 toward the surface 50a of the stator core 50, the positioning pin 20 is movable relative to the sleeve 10 and the stator core 50, and when the positioning pin 20 is inserted into the through hole 53, the sleeve 10 abuts against the periphery of the through hole 53.

[0048] By configuring the motor manufacturing apparatus 1 as described above, the sleeve 10 as the movable part 10 is biased toward the surface 50a of the stator core 50 by the biasing member 35. Moreover, the motor manufacturing apparatus 1 described above is configured such that the positioning pin 20 is movable relative to the sleeve 10 and the stator core 50. Therefore, the motor manufacturing apparatus 1 described above can reliably abut the sleeve 10 against the periphery of the through hole 53 when the positioning pin 20 is inserted into the through hole 53 of the stator core 50. As a result, the motor manufacturing apparatus 1 described above can reliably prevent the electromagnetic steel sheet 51 from being turned over even if the positioning pin 20 is caught on the electromagnetic steel sheet 51 around the through hole 53 when removing the positioning pin 20 after being inserted into the through hole 53. Therefore, the motor manufacturing apparatus 1 described above can prevent the motor from being damaged, can prevent the performance of the motor from being deteriorated, and can also prevent the bolt tightening axial force from becoming unstable when the stator is fixed. Here, the biasing member 35 may be constituted by, for example, various springs such as a coil spring, a cylinder, a damper, or by air pressure, gas pressure, or the like.

[0049] The above is the configuration and effects of the embodiment of the present invention, but the motor manufacturing apparatus 1 of the present invention is not limited to the above-described embodiment and various modifications can be made within the scope of the present invention.

[0050] In this embodiment, the plate-shaped member 51 of the stator core 50 is an electromagnetic steel plate, but various materials other than an electromagnetic steel plate can be used for the plate-shaped member 51. Stator cores 50 and plate-shaped members 51 of various shapes and sizes can also be used. The support portion 10 (movable portion 10) is not limited to being sleeve-shaped, and can be formed into an appropriate shape and size according to the shape and size of the positioning portion 20. In this embodiment, the support portion 10 is provided in three places, but one, two, or four or more support portions 10 may be provided according to the positioning portion 20.

[0051] Moreover, the positioning portion 20 is not limited to the positioning pin 20, and various positioning means can be used. Furthermore, when the positioning pin 20 is provided, various shapes and sizes of the positioning pin 20 can be used according to the shape of the through hole 53 of the stator core 50. Furthermore, the reduced diameter portion 22 of the positioning pin 20 may be provided as necessary, and a configuration without the reduced diameter portion 22 is also possible. Furthermore, when the reduced diameter portion 22 is provided, the degree of reduction can be various, and various shapes of the reduced diameter portion 22 can be used. For example, the reduced diameter portion 22 may be reduced in diameter in an arc shape (chamfered).

[0052] In addition, in this embodiment, the motor manufacturing apparatus 1 is fixed downward, and the stator core 50 is placed from the upper side of the motor manufacturing apparatus 1 (supporting portion 10). However, the motor manufacturing apparatus 1 (supporting portion 10) may be configured to be moved up and down with the stator core 50 fixed to the lower side. In addition, in this embodiment, both the supporting portion 10 and the positioning portion 20 are movable relative to the stator core 50 in a state where the supporting portion 10 is in contact with the surface 50a of the stator core 50. However, various modes can be used as long as the positioning portion 20 can be released from the stator core 50 in a state where the supporting portion 10 is in contact with the surface 50a of the stator core 50. For example, the stator core 50 may be fixed, and the positioning portion 20 may move relative to the stator core 50 in a state where the supporting portion 10 is in contact with the surface 50a of the stator core 50. In other words, it is only necessary that one of the support portion 10 and the positioning portion 20 is fixed and the other is movable.

[0053] In addition, in the present embodiment, the spring 35 is provided as the biasing member of the movable part 10, but the biasing member 35 may be any of various means such as a cylinder, a damper, or a biasing member using gas pressure or air pressure. In the present embodiment, the surface of the movable part 10 is formed as a flat surface 11, but the contact surface between the movable part 10 and the stator core 50 may be appropriately changed according to the shape of the surface 50a of the stator core 50. For example, the contact surface of the movable part 10 may have various shapes, such as a surface having projections and recesses or a surface formed intermittently in the circumferential direction. In short, the movable part 10 may be any as long as it can support the surface 50a of the stator core 50 around the positioning part 20.

[0054] The above are various embodiments and modifications of the motor manufacturing apparatus according to the present invention. However, the present invention is not limited to the above-mentioned embodiments and modifications. It will be easily understood by those skilled in the art that other embodiments are possible in accordance with the teachings and spirit of the present invention without departing from the scope of the claims. [Industrial Applicability]

[0055] The present invention can be suitably used in motor manufacturing devices in general that perform positioning of a stator core. [Explanation of symbols]

[0056] 1: Motor manufacturing equipment 10: Support part (movable part, sleeve) 20: Positioning part (positioning pin) 22: Reduced diameter part 30: Base section 35: Spring (biasing member) 50: Stator core 50a: surface 53: Through hole

Claims

1. A motor manufacturing apparatus for manufacturing a motor including a stator core formed by stacking a plurality of plate-shaped members, comprising: A support portion that supports the stator core; a positioning portion that positions the stator core on the support portion; Equipped with A motor manufacturing apparatus, characterized in that either one or both of the support portion and the positioning portion are movable relative to the stator core with the support portion in contact with a surface of the stator core.

2. The stator core includes a through hole formed along a lamination direction, The positioning portion includes a positioning pin that is inserted into the through hole, 2. The motor manufacturing apparatus according to claim 1, wherein the support portion forms a movable portion around the positioning pin, the movable portion being capable of coming into contact with a surface of the stator core.

3. The positioning pin has a reduced diameter portion on a tip side, the reduced diameter portion being smaller than the diameter of the positioning pin.

3. The motor manufacturing apparatus according to claim 2, wherein the movable portion is movable with respect to the positioning pin to a position where at least a portion of the reduced diameter portion is accommodated.

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