Hairpin alignment apparatus

Abstract

The present embodiment relates to a hairpin alignment apparatus for aligning hairpins in a stator in which the hairpins are mounted on a core, the hairpin alignment apparatus comprising: a first disk having an opening formed through which the hairpins of the stator core pass; and a second disk disposed on an upper side of the first disk and having a clamp for aligning the hairpins, wherein a wedge, which is in contact with the hairpins and presses the hairpins toward the first disk, protrudes from a bottom surface of the clamp.

Description

Hairpin alignment device

[0001] The present invention relates to a hairpin alignment device.

[0002] A hairpin alignment device is a device that aligns hairpins in a stator in which hairpins are mounted on a core.

[0003] An example of a hairpin alignment device is a stator hairpin alignment device disclosed in Korean Patent Publication No. 10-2469477 B (published on November 23, 2022), wherein the hairpin alignment device comprises a clamp comprising first and second clamping pieces that are close to and spaced apart from each other with the hairpin tips interposed therebetween in a plane perpendicular to the extension direction of the hairpin and that bring the hairpin tips into close contact when brought into close contact; And an operating mechanism for bringing the first and second clamping pieces close to and apart from each other, the first and second clamping pieces of the clamp have an alignment groove in which the tips of a pair of hairpins are placed when they are in close contact with each other, and the operating mechanism rotates around a point of the movable frame so that the tips of the pair of hairpins are in close contact with and aligned with each other within the alignment groove, and the operating mechanism operates to rotate one of the first and second clamping pieces of each clamp in one direction and the other in a direction opposite to the one direction so that the first and second clamping pieces forming each clamp are configured to be simultaneously spaced apart from or close to each other, and the other end of the first clamping piece forming each clamp is coupled to a first rotating body that rotates in a circumferential direction and is rotatable around the one point according to the rotation of the first rotating body, and the other end of the second clamping piece is coupled to a second rotating body that rotates in a circumferential direction and is rotatable around the one point according to the rotation of the second rotating body, and the first and second rotating bodies rotate circumferentially in opposite directions so that the first and second clamping pieces of each clamp are rotated The second clamping pieces are configured to operate in a spaced or close proximity to each other.

[0004] The hairpin alignment device according to the prior art has a first clamping piece coupled to a first rotating body that rotates in a circumferential direction, and a second clamping piece coupled to a second rotating body that rotates in a circumferential direction, so there are problems in that a lot of processing is required during coupling, alignment may be uneven during clamping operation due to assembly tolerance, and adhesion for alignment may be insufficient or the hairpin may be damaged.

[0005] The present embodiment provides a hairpin alignment device that can minimize the number of parts and has high reliability of hairpin alignment.

[0006] The present embodiment provides a hairpin alignment device for aligning hairpins in a stator in which hairpins are mounted on a core, comprising: a first disk having an opening formed therein through which a hairpin passes; a second disk having a clamp formed therein for aligning the hairpin and positioned on an upper side of the first disk; and a wedge protruding from a lower surface of the clamp for contacting the hairpin and pressing the hairpin against the first disk.

[0007] A supporter may protrude from the opening to support the hairpin in the radial direction of the first disk.

[0008]

[0009] The protrusion width of the supporter may be smaller than the thickness of the hair pin.

[0010] The size of the wedge may be smaller than the size of the opening.

[0011] A wedge can be inserted into the opening.

[0012] A plurality of clamps may be formed on the second disc. The plurality of clamps may be spaced circumferentially around the outer periphery of the second disc.

[0013] Each of the plurality of clamps may include a bridge protruding radially from the second disk; a first clamp extending from the bridge; and a second clamp extending from the bridge and spaced apart from the first clamp.

[0014] The first clamp and the second clamp can be spaced apart in the circumferential direction.

[0015] The wedge may include a first wedge protruding from the bottom surface of the first clamp; and a second wedge protruding from the bottom surface of the second clamp.

[0016] A first gap may be formed between adjacent pairs of clamps.

[0017] A second gap may be formed between the first clamp and the second clamp.

[0018] The hairpin alignment device may further include a first elevating mechanism for elevating the first disk or stator.

[0019] The hairpin alignment device may further include a second elevating mechanism for elevating the second disc.

[0020] The hairpin alignment device may further include a third disk that is movably and rotatably arranged on the upper side of the second disk.

[0021] The underside of the third disc may have a protrusion.

[0022] The protrusion can be inserted into the first gap to bring the first and second clamps together, or can be inserted into the second gap to spread the first and second clamps apart.

[0023] A plurality of protrusions may be spaced circumferentially on the undersurface of the third disc.

[0024] The hairpin alignment device may include a third elevating mechanism for elevating the third disk; and a rotating mechanism for rotating the third disk.

[0025] The hairpin alignment device may further include a controller for operating a first lifting mechanism; a second lifting mechanism; and a third lifting mechanism rotation mechanism.

[0026] According to this embodiment, the hairpin can be aligned by the first disk and the second disk, so that the structure is simple and the number of parts can be minimized.

[0027] In addition, the first disk can align the hairpin primarily, and the second disk is elastically deformed to align the hairpin secondary, so the hairpin can be aligned reliably.

[0028] In addition, since the second disk is elastically deformed by the protrusion of the third disk, the hairpin can be reliably aligned, and after the hairpin is aligned, the second disk can be easily separated.

[0029] Figure 1 is a perspective view of a stator positioned under a hairpin alignment device according to the present embodiment;

[0030] Fig. 2 is a perspective view of a hairpin of a stator when it is docked to a hairpin alignment device according to the present embodiment.

[0031] Figure 3 is a plan view of the first disk according to the present embodiment when the hairpin is docked.

[0032] Figure 4 is an enlarged perspective view of a portion of a second disk according to the present embodiment;

[0033] Figure 5 is a perspective view of the second disk according to the present embodiment when it is lowered.

[0034] FIG. 6 is a diagram showing a gap between the first disk and the second disk when the second disk is lowered according to the present embodiment.

[0035] Fig. 7 is a diagram illustrating a process of aligning hair pins by a hair pin alignment device according to the present embodiment.

[0036] Figure 8 is a diagram showing when the projection of the third disk according to the present embodiment brings the first clamp and the second clamp together.

[0037] Figure 9 is a diagram showing when the projection of the third disk according to the present embodiment spreads the first clamp and the second clamp.

[0038] Fig. 10 is a control block diagram of a hairpin alignment device according to the present embodiment.

[0039] Hereinafter, specific embodiments of the present invention will be described in detail with drawings.

[0040] FIG. 1 is a perspective view when a stator is positioned under a hairpin alignment device according to the present embodiment, FIG. 2 is a perspective view when a hairpin of a stator is docked to a hairpin alignment device according to the present embodiment, FIG. 3 is a plan view when a hairpin is completely docked to a first disk according to the present embodiment, FIG. 4 is an enlarged perspective view of a part of a second disk according to the present embodiment, FIG. 5 is a perspective view when the second disk according to the present embodiment is lowered, FIG. 6 is a diagram illustrating a gap between the first disk and the second disk when the second disk according to the present embodiment is lowered, and FIG. 7 is a diagram illustrating a process of aligning a hairpin by a hairpin alignment device according to the present embodiment.

[0041] Fig. 7 (a) is a cross-sectional view when the stator is raised to the first disk, Fig. 7 (b) is a cross-sectional view when the second disk is lowered to the first disk, and Fig. 7 (c) is a cross-sectional view when the second disk is lowered to the first disk and the wedge aligns the hairpin.

[0042] The hairpin alignment device (1) is a device that aligns the hairpin (3) mounted on the core of the stator (2).

[0043] A hairpin alignment device (1) may include a first disk (10) through which a hairpin (3) passes; a second disk (20) disposed on the upper side of the first disk (10), and a clamp (30) for aligning the hairpin (3) may be formed on the second disk (20).

[0044] As shown in Fig. 3, an opening (12) through which a hairpin (3) passes may be formed in the first disk (10).

[0045] A plurality of openings (12) can be formed in the first disk (10), and the plurality of openings (12) can be spaced apart from each other in the circumferential direction of the first disk (10).

[0046] An opening (12) can be formed between the center of the first disk (10) and the edge (13).

[0047] The opening (12) can be formed radially long in the first disk (10).

[0048] The shape of the opening (12) may be constant in the radial direction of the first disk (10) or may gradually increase toward the edge (13) of the first disk (10).

[0049] A plurality of hairpins (3) of the stator (2) can be distributed and penetrated through each of the plurality of openings (12).

[0050] A plurality of hairpins (3) can pass through one opening (12) together. A plurality of hairpins (3) can be distributed laterally in one opening (12).

[0051] A plurality of hairpins (3) penetrating one opening (12) may include a plurality of left hairpins (3A) positioned on the left in the circumferential direction and a plurality of right hairpins (3B) positioned on the right in the circumferential direction.

[0052] A plurality of left hairpins (3A) can be spaced apart from each other in the radial direction of the first disk (10).

[0053] A plurality of right hairpins (3B) can be spaced apart from a plurality of left hairpins (3A) in the circumferential direction of the first disk (10).

[0054] A plurality of right hairpins (3B) can be spaced apart from each other in the radial direction of the first disk (10).

[0055] For example, when 16 hairpins (3) penetrate one opening (12), 8 left hairpins (3A) spaced apart in the radial direction of the first disk (10) can be positioned on the left in the circumferential direction, and 8 right hairpins (3B) spaced apart in the radial direction of the first disk (10) can be positioned on the right in the circumferential direction.

[0056] A supporter (14) that supports the hairpin (3) in the radial direction of the first disk (10) can protrude from the opening (12).

[0057] The cross-sectional shape of the supporter (14) may be approximately triangular.

[0058] The supporter (14) may protrude from the first disk (10) toward the opening (12). The protrusion width (P) of the supporter (14) may be smaller than the thickness (D) of the hair pin (3).

[0059] A plurality of supporters (14) can be formed on the first disk (10).

[0060] The plurality of supporters (14) may include a plurality of left supporters (14A) and a plurality of right supporters (14B).

[0061] Multiple left supporters (14A) can be formed at two intervals from the left hairpin (3A).

[0062] Multiple right supporters (14B) can be formed at two intervals from the right hairpin (3B).

[0063] The first disk (10) can be docked with the hairpin (3).

[0064] An example of docking of the first disk (10) and the hairpin (3) is that the stator (2) can be raised from a lower position of the first disk (10) to the first disk (10), and the hairpin (3) can penetrate the opening (12) when the stator (2) is raised.

[0065] Another example of docking the first disk (10) and the hairpin (3) is that the first disk (10) can be lowered onto the stator (2) from an upper position of the stator (2), and the hairpin (3) can pass through the opening (12) when the first disk (10) is lowered.

[0066] In the docking as described above, the upper end of the hairpin (3) can pass through the opening (12) and be positioned on the upper side of the opening (12), and the lower end of the hairpin (3) can be positioned on the lower side of the opening (12).

[0067] When multiple hairpins (3) penetrate the opening (12), the multiple hairpins (3) can come into contact with the peripheral portion of the opening (12) of the first disk (10), and the multiple hairpins (3) can be primarily aligned by the opening (12).

[0068] The second disk (20) can be docked with the hairpin (3) while the first disk (10) is docked with the hairpin (3).

[0069] An example of docking the second disk (20) and the hairpin (3) is that the second disk (20) can be lowered from an upper position of the first disk (10) to the first disk (10), and the hairpin (3) can be docked with a clamp (30) formed on the second disk (10) when the second disk (20) is lowered, and can be aligned by the clamp (30).

[0070] Another example of docking the second disk (20) and the hairpin (3) is that the first disk (10) and the stator (2) can be raised from a lower position of the second disk (20) to the second disk (20), and the hairpin (3) can be docked with a clamp (30) formed on the second disk (10) when the first disk (10) and the stator (2) are raised, and can be aligned by the clamp (30).

[0071] A wedge (40) may be protruded on the bottom surface of the clamp (30) to contact the hairpin (3) and press the hairpin (3) against the first disk (10).

[0072] The wedge (40) may become gradually thinner towards the bottom. The bottom of the wedge (40) may be pointed.

[0073] The wedge (40) can press the hairpin (3) laterally, and the hairpin (3) can be secondarily aligned between the first disk (10) and the wedge (40).

[0074] The size of the wedge (40) may be smaller than the size of the opening (12). The upper part of the wedge (40) may have a cross-sectional area smaller than the cross-sectional area of ​​the opening (12). The wedge (40) may be inserted into the opening (12).

[0075] A plurality of clamps (30) may be formed on the second disk (20). The plurality of clamps (30) may be spaced apart in the circumferential direction around the outer periphery of the second disk (20).

[0076] Each of the plurality of clamps (30) may include a bridge (32) protruding radially from the second disk (20), a first clamp (34) extending from the bridge (32), and a second clamp (36) extending from the bridge (32) and spaced apart from the first clamp (34).

[0077] The first clamp (34) and the second clamp (36) can be spaced apart in the circumferential direction.

[0078] Each of the first clamp (34) and the second clamp (36) can be elastically deformed by the third disk (30) shown in FIG. 1.

[0079] If the first clamp (34) is a left clamp, the second clamp (36) may be a right clamp.

[0080] A pair of wedges (40) can be formed per clamp (30). When a total of 24 clamps (30) are formed on the second disk (10), a total of 48 wedges (40) can be formed on the second disk (10).

[0081] The wedge (40) may include a first wedge (40A) protruding from the bottom surface of the first clamp (34); and a second wedge (40B) protruding from the bottom surface of the second clamp (36).

[0082] The first wedge (40A) and the second wedge (40B) can be spaced apart from each other in the circumferential direction of the second disk (20).

[0083] The first wedge (40A) and the second wedge (40B) can be formed to be long in the radial direction of the second disk (20).

[0084] The first wedge (40A) and the second wedge (40B) can be inserted into adjacent pairs of openings (12) as shown in FIG. 5.

[0085] The first wedge (40A) and the second wedge (40B) can be spaced apart in the circumferential direction.

[0086] If the first wedge (40A) is a left edge formed on the left clamp, the second clamp (36) may be a right edge formed on the right clamp.

[0087] When the second disc (20) descends, the first wedge (40A) can press the right hairpin (3B) penetrating the right side of one of the openings (12) to the first disc (10), and the second wedge wedge (40B) can press the left hairpin (3A) penetrating the left side of the other opening (12) to the first disc (10).

[0088] The left hairpin (3A) can be pressed in the circumferential direction by the second wedge (40B).

[0089] The right hairpin (3B) can be pressed in the circumferential direction by the first wedge (40A).

[0090] The left hairpin (3A) and the right hairpin (3B) can be pressed in opposite directions.

[0091] A first gap (G1) can be formed between a pair of adjacent clamps (30).

[0092] When the first gap (G1) is enlarged by the third disk (30), the first clamp (34) and the second clamp (36) can be brought together, and the first wedge (40A) formed in the first clamp (34) can press the hairpin (3) around the opening in the first disk (10), and the second wedge (40B) formed in the first clamp (34) can press the hairpin (3) around the opening in the first disk (10).

[0093] The first wedge (40A) can strongly press the hairpin (3), the second wedge (40B) can strongly press the hairpin (3), and the second disk (20) can secondarily align the hairpin (3) that is first aligned to the first disk (10).

[0094] A second gap (G2) can be formed between the first clamp (34) and the second clamp (36).

[0095] The size of the second gap (G2) can be changed in the opposite direction to the size of the first gap (G1).

[0096] When the first gap (G1) increases, the second gap (G2) can decrease, and when the first gap (G1) decreases, the second gap (G2) can increase.

[0097] When the second gap (G2) is enlarged by the third disk (30), the first clamp (34) and the second clamp (36) may move away from each other, the first wedge (40A) may be separated from the hairpin (3) or the force pressing the hairpin (3) may be reduced, and the second wedge (40B) may be separated from the hairpin (3) or the force pressing the hairpin (3) may be reduced.

[0098] That is, when the second gap (G2) is enlarged by the third disk (30), the clamp (30) can be easily separated from the hairpin (3).

[0099] The hairpin alignment device (1) may further include a third disk (50) that is movably and rotatably positioned on the upper side of the second disk (20), as shown in FIG. 1.

[0100] A protrusion (52, see FIGS. 8 and 9) that can be inserted into the first gap (G1) or the second gap (G2) to adjust the first gap (G1) or the second gap (G2) can be formed on the third disk (50).

[0101] FIG. 8 is a drawing of a third disk according to the present embodiment when the protrusion brings the first clamp and the second clamp together, and FIG. 9 is a drawing of a third disk according to the present embodiment when the protrusion spreads the first clamp and the second clamp.

[0102] A protrusion (52) may protrude from the bottom surface of the third disk (50).

[0103] As shown in Fig. 8, the protrusion (52) can be inserted into the first gap (G1) to bring together the first clamp (34) and the second clamp (36), and can bring together the first wedge (40A) and the second wedge (40B).

[0104] As shown in Fig. 9, the protrusion (52) can be inserted into the second gap (G2) to spread the first clamp (34) and the second clamp (36), and to spread the first wedge (40A) and the second wedge (40B).

[0105] A plurality of protrusions (52) can be formed on the bottom surface of the third disk (50), and the plurality of protrusions (52) can be spaced apart from each other in the circumferential direction.

[0106] Fig. 10 is a control block diagram of a hairpin alignment device according to the present embodiment.

[0107] The hairpin alignment device may further include a first elevating mechanism (60) for elevating the first disk (10) or the stator (2).

[0108] The first elevator mechanism (60) may include a first driving source such as a motor or cylinder, and at least one power transmission member connected to the first disk (10) or supporting the stator (2).

[0109] Hereinafter, for convenience, the first lifting mechanism (60) is described as lifting the stator (2), but the first lifting mechanism (60) is not limited to lifting the stator (2), and the first lifting mechanism (60) can also lift the first disk (10).

[0110] The first lifting mechanism (60) can be applied to any type of device that can elevate the first disk (10) or stator (2).

[0111] The hairpin alignment device may further include a second elevating mechanism (62) for elevating the second disk (20).

[0112] The second elevator mechanism (62) may include a second driving source such as a motor or cylinder, and at least one power transmission member connected to the second driving source and the second disk (2).

[0113] The second lifting mechanism (62) can be applied to any type of device that can elevate the second disk (20).

[0114] The hairpin alignment device may include a third lifting mechanism (64) for lifting the third disk (50); and a rotating mechanism (66) for rotating the third disk (50).

[0115] The third lifting mechanism (64) may include a third driving source such as a motor or cylinder, and at least one power transmission member connected to the third driving source and connected to a third disk (50) or a rotating mechanism (66).

[0116] The third lifting mechanism (64) can be applied to any type of device that can elevate the third disk (50).

[0117] The rotary mechanism (66) may include a rotary driving source such as a motor or cylinder, and at least one power transmission member connected to the rotary driving source and connected to the third disk (10) or the third lifting mechanism (64).

[0118] The rotating mechanism (66) can be applied to any type of device that can rotate the third disk (50).

[0119] Either one of the third lifting mechanism (64) and the rotary mechanism (66) can be connected to the third disk (10), and the other one of the third lifting mechanism (64) and the rotary mechanism (66) can be connected to either one of the third lifting mechanism (64) and the rotary mechanism (66).

[0120] For example, when the third disk (50) is connected to the rotation mechanism (66), the third lifting mechanism (64) can be connected to the rotation mechanism (66) to raise and lower the third disk (50) and the rotation mechanism (66).

[0121] For another example, when the third disk (50) is connected to the third lifting mechanism (64), the rotating mechanism (60) can be connected to the third lifting mechanism (62) to rotate the third disk (50) and the third lifting mechanism (64).

[0122] The hairpin alignment device may include a controller (68).

[0123] The overall operation of the hairpin alignment device of the controller (68) can be controlled.

[0124] The controller (68) can operate the first elevator mechanism (60); the second elevator mechanism (62); the third elevator mechanism (64); and the third rotation mechanism (66).

[0125] The hairpin alignment device may further include an input unit (70) for inputting various commands.

[0126] An example of an input unit (70) may be a control panel or computing device operated by an operator.

[0127] The controller (68) can control the first lifting mechanism (60) to align the hairpin (3) for the first time. The controller (68) can control the first lifting mechanism (60) in an ascending mode.

[0128] The stator (2) can be raised from the lower side of the hairpin (3), and the hairpin (3) can pass through the opening (12).

[0129] Afterwards, the controller (68) can control the second lifting mechanism (62) to the lowering mode to align the hairpin (3) for the second time.

[0130] The second lifting mechanism (62) can lower the second disk (20) from the upper side of the first disk (10), and the clamp (30) formed on the second disk (20) can be docked with the hairpin (3).

[0131] After the lowering of the second disk (20) by the second lifting mechanism (62) is completed, the controller (68) can control the third lifting mechanism (64) to a lowering mode, and the protrusion (52) formed on the third disk (50) can be inserted into the first gap (G1) as shown in FIG. 8.

[0132] When the protrusion (52) formed on the third disk (50) is inserted into the first gap (G1) as shown in FIG. 8, each of the first clamp (34) and the second clamp (36) of the clamp (30) can be gathered while being elastically deformed.

[0133] At this time, the first wedge (40A) can press the right hairpin (3B) penetrating one of the adjacent pair of openings (12) against the first disk (10). And, the second wedge (40B) can press the left hairpin (3B) penetrating the other of the adjacent pair of openings (12) against the first disk (10).

[0134] That is, the hairpin (3) can be secondarily aligned by the first wedge (40A) and the second wedge (40B).

[0135] Afterwards, after the secondary alignment of the hairpin (3) is completed, the controller (68) can control the third lifting mechanism (64) to an ascending mode, and the protrusion (52) formed on the third disk (50) can ascend in the first gap (G1) and be separated from each of the first clamp (34) and the second clamp (36).

[0136] When the rise of the third disk (50) is completed, the controller (68) can control the rotation mechanism (66) to the rotation mode, and the third disk (50) can be rotated by the distance between the first gap (G1) and the second gap (G2), and the protrusion (52) can be repositioned to the upper position of the second cap (G2).

[0137] After the protrusion (52) is repositioned to the upper position of the second cap (G2), the controller (68) can control the third lifting mechanism (64) to a descending mode, and the protrusion (52) formed on the third disk (50) can be inserted into the second gap (G2) as shown in FIG. 9.

[0138] When the protrusion (52) of the third disk (50) is inserted into the second gap (G2) as shown in FIG. 9, each of the first clamp (34) and the second clamp (36) of the clamp (30) can be opened while elastically restoring.

[0139] At this time, the first wedge (40A) may be spaced apart from the right hairpin (3B) penetrating one of the adjacent pair of openings (12). And, the second wedge (40B) may be spaced apart from the left hairpin (3B) penetrating the other of the adjacent pair of openings (12).

[0140] That is, the first wedge (40A) and the second wedge (40B) can be released from the clamping with the hairpin (3).

[0141] Thereafter, the controller (68) can control the third lifting mechanism (64) to ascend mode, and the protrusion (52) of the third disk (50) can ascend in the second gap (G2) and be spaced apart from each of the plurality of clamps (30).

[0142] When the third lifting mechanism (64) completes raising the third disk (50), the first and second clamping of the hairpin (3) can be completed, and the controller (68) can control the second lifting mechanism (62) to the raising mode.

[0143] When the second elevator mechanism (62) is in the rising mode, the second disk (20) can be raised and separated from the hairpin (3).

[0144] When the second disk (40) is completed to rise, the controller (68) can control the first lifting mechanism (60). The controller (68) can control the first lifting mechanism (60) in a descending mode.

[0145] When the first elevator mechanism (60) is controlled, the first disk (10) can be undocked from the hairpin (3) and separated from the hairpin (3), and the clamping process of the hairpin is completed.

[0146] Thereafter, the controller (68) can repeat the above process to align the hairpin (3) of the new state (2).

[0147] The above description is merely an example of the technical idea of ​​the present invention, and those skilled in the art will appreciate that various modifications and variations can be made without departing from the essential characteristics of the present invention.

[0148] Accordingly, the embodiments disclosed in the present invention are not intended to limit the technical idea of ​​the present invention but to explain it, and the scope of the technical idea of ​​the present invention is not limited by these embodiments.

[0149] The scope of protection of the present invention should be interpreted by the claims below, and all technical ideas within the scope equivalent thereto should be interpreted as being included in the scope of the rights of the present invention.

Claims

1. In a hairpin alignment device for aligning hairpins in a stator in which hairpins are mounted on a core, A first disk having an opening formed therein through which the hairpin penetrates; and A second disk is disposed on the upper side of the first disk and has a clamp formed thereon for aligning the hairpin, On the bottom of the above clamp A wedge protrudes in contact with the hairpin and presses the hairpin against the first disk. Hairpin alignment device.

2. In paragraph 1, A supporter protrudes from the above opening to support the hairpin in the radial direction of the first disk. Hairpin alignment device 3. In paragraph 1, A hairpin alignment device in which the protrusion width of the above supporter is smaller than the thickness of the above hairpin 4. In paragraph 1, A hairpin alignment device in which the size of the above wedge is smaller than the size of the above opening.

5. In paragraph 1, The above wedge is a hairpin alignment device inserted into the above opening.

6. In paragraph 1, The above clamps are formed in multiple numbers on the second disk, A plurality of clamps are hairpin alignment devices spaced circumferentially around the outer periphery of the second disk.

7. In paragraph 6, Each of the above multiple clamps A bridge protruding radially from the second disk, a first clamp extending from the above bridge; and a second clamp extending from the bridge and spaced apart from the first clamp; Hairpin alignment device.

8. In paragraph 7, The above first clamp and second clamp are hairpin alignment devices spaced apart in the circumferential direction.

9. In paragraph 7, The above wedge A first wedge protruding from the bottom surface of the first clamp; and A hairpin alignment device including a second wedge protruding from the bottom surface of the second clamp.

10. In paragraph 7, A first gap is formed between a pair of adjacent clamps, A hairpin alignment device in which a second gap is formed between the first clamp and the second clamp.

11. In paragraph 10, A first lifting mechanism for lifting the first disk or stator; and A hairpin alignment device further comprising a second elevating mechanism for elevating the second disk.

12. In paragraph 11, Further comprising a third disk that is arranged to be able to be lifted and rotated on the upper side of the second disk, The bottom surface of the third disk above has a protrusion, The above protrusion is inserted into the first gap to bring the first clamp and the second clamp together, or is inserted into the second gap to spread the first clamp and the second clamp apart. Hairpin alignment device.

13. In paragraph 12, A plurality of the above protrusions are hairpin alignment devices spaced circumferentially on the lower surface of the third disk.

14. In paragraph 12, A third lifting mechanism for lifting the third disk; and A hairpin alignment device including a rotating mechanism for rotating the third disk.

15. In paragraph 14, A controller for operating the first lifting mechanism; the second lifting mechanism; the third lifting mechanism; and the rotation mechanism. Hairpin alignment device.

Images