WO2012117535A1 - Appareil d'insertion de clavettes et appareil d'insertion de bobine - Google Patents

Appareil d'insertion de clavettes et appareil d'insertion de bobine Download PDF

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Publication number
WO2012117535A1
WO2012117535A1 PCT/JP2011/054749 JP2011054749W WO2012117535A1 WO 2012117535 A1 WO2012117535 A1 WO 2012117535A1 JP 2011054749 W JP2011054749 W JP 2011054749W WO 2012117535 A1 WO2012117535 A1 WO 2012117535A1
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WIPO (PCT)
Prior art keywords
wedge
gap
tip
push rod
coil
Prior art date
Application number
PCT/JP2011/054749
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English (en)
Japanese (ja)
Inventor
細野聖二
Original Assignee
E-Tec株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by E-Tec株式会社 filed Critical E-Tec株式会社
Priority to PCT/JP2011/054749 priority Critical patent/WO2012117535A1/fr
Priority to CN201180068338.5A priority patent/CN103460570B/zh
Priority to JP2012554548A priority patent/JP5229929B2/ja
Publication of WO2012117535A1 publication Critical patent/WO2012117535A1/fr

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    • 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
    • H02K15/06—Embedding prefabricated windings in machines
    • H02K15/062—Windings in slots; salient pole windings
    • H02K15/065—Windings consisting of complete sections, e.g. coils, waves
    • H02K15/067—Windings consisting of complete sections, e.g. coils, waves inserted in parallel to the axis of the slots or inter-polar channels
    • H02K15/068—Strippers

Definitions

  • the present invention relates to a wedge insertion machine that inserts a pre-wound coil bundle into a slot of a stator core at a high density without buckling the wedge, and a coil insertion apparatus including the wedge insertion machine.
  • the coil wire is wound at a high density in a slot which is an opening arranged in an annular shape on the inner peripheral side of the stator core constituting the electric motor.
  • a coil insertion method is known in which a coil bundle in which a coil wire is wound at a high density is formed in advance and the coil bundle is pushed through a streak gap on the inner surface of the slot. It has been.
  • This method inserts a coil bundle into the slot according to the following process.
  • slot insulating paper that insulates the coil wire from the stator core is inserted in advance into the slot inner surface portion excluding the streak-like gaps on the inner surface of the stator core slot.
  • a coil bundle is hooked in a gap between shafts that are arranged in an annular shape called a blade and a wedge guide, and extend in a comb shape, and a stator core is supported at the tip of the blade.
  • a coil bundle extrudate called a stripper is moved along the inner surface of the blade, and the hooked coil bundle is pushed into each slot from the streak gap.
  • This is a coil insertion method in which the coil bundle and the stator core are insulated from each other by a slot insulating paper and a wedge.
  • the wedge may buckle and cannot be inserted into a predetermined position, causing an insulation failure and one of the causes of the failure of the motor.
  • Japanese Patent Application Laid-Open No. 61-73555 discloses a technique for projecting a part of each wedge pusher between adjacent blades (see FIG. 7).
  • the blade and the wedge guide are attracted to the previously inserted coil and deformed, and the gap between the wedge guide and the wedge pusher becomes a predetermined distance or more and a gap for entering the wedge is opened.
  • the web portion of the wedge is pushed up while being supported by the portion protruding between the blades.
  • the gap between the wedge guide and the wedge pusher opens due to deformation of the blade, etc., and even if the gap increases, the wedge does not get caught in it, and the wedge is pushed up to a predetermined position It was supposed to be.
  • the wedge moves together with the coil bundle, so the insertion resistance is small and the wedge can be inserted without buckling.
  • the density of the coil bundle becomes high, there is a case in which it is impossible to insert the coil bundle to a predetermined position. That is, the coil is inserted to a predetermined position, and then the wedge is inserted until it slightly protrudes from the slot exit side, in other words, in the final insertion stage of the wedge, the coil is sandwiched between the inner wall of the slot and the coil bundle that does not move. As a result, the wedge receives a large insertion resistance. At that stage, the buckling of the wedge has occurred, or the wedge has come out of the wedge pusher, so that there has been a problem that the wedge cannot be inserted to a predetermined position.
  • Japanese Patent Application Laid-Open No. 10-23699 discloses a technique in which a hole as a traction connecting portion is provided at a longitudinal end portion of a wedge, a corresponding traction means is connected, and the wedge is pulled and inserted. Has been.
  • this technique it is necessary to make a hole in the wedge in advance, and in addition to the wedge pusher, a wedge pulling means is necessary.
  • a wedge pressing surface at the tip of the wedge pusher is provided with a structure for preventing the displacement of the wedge, a step is provided on the side of the wedge, and the wedge is pushed up while being pulled.
  • the technology to insert is public.
  • the position shift prevention structure is disclosed in which a protrusion is provided on at least one of the radial inner side and the outer side of the wedge pusher, a groove is provided on the pressing surface, or a rough surface is provided on the pressing surface. Yes.
  • the pressing area of the front end of the wedge is small, the wedge is pushed by the wedge pusher only by pressing the end of the wedge from below without pulling means for pulling up the wedge when inserting the wedge.
  • tip part There existed a subject that it might slip or buckle from a front-end
  • a claw that hooks the end of the web portion of the wedge having a substantially U-shaped cross-section is provided at a position below the stripper, and the end of the wedge is supported by the claw so that the stripper moves. It is also possible to insert the wedge by pushing it in. However, in this case, it is necessary to reconfigure the stripper by changing the position of the claw attached to the stripper each time the height of the stator core changes, and it takes time and effort to cope with the stator cores having different shapes.
  • the width of the claw is narrower than the width of the axial gap formed by the adjacent wedge guides and the width of the slot gap. Therefore, when the width of the inner side of the slot is widened and the width of the web portion forming the connecting side of the wedge is increased, the claw is hooked and supported only near the central portion of the entire width of the connecting side. Become. In the stage of inserting the wedge until it slightly protrudes from the slot exit side, in other words, in the final insertion stage of the wedge in which a large insertion resistance is generated, a large pressing force is concentrated in the vicinity of the center portion of the web portion, and the web There was a possibility that the part buckled.
  • the problem to be solved by the present invention is to provide a wedge insertion machine and a coil insertion device that can insert a wedge into a predetermined position without buckling without performing complicated processing on the wedge in advance. .
  • a coil bundle inserted from an insertion gap on the inner side of the axis of the slot and the stator core
  • a wedge insertion machine for inserting a wedge having a substantially U-shaped cross-section that insulates
  • the stator iron core is held in the vicinity of the tip of the blade, and the blade includes a plurality of blade shafts arranged in an annular shape and extending in a comb-tooth shape.
  • a wedge guide composed of a wedge guide shaft extending in a comb-tooth shape is arranged below the stator core so as to align with the outer surface of the blade shaft, and the adjacent wedge guide shafts are formed below the stator core.
  • a gap is formed when the coil bundle is inserted into the slot from the second gap through the first gap in a state where a second gap is formed in which the coil bundle is hooked continuously with the first gap.
  • a wedge insertion machine for inserting the wedge, A wedge pusher that pushes the wedge into the slot along a wedge guide space between adjacent wedge guide shafts;
  • the wedge pusher is composed of a push rod portion forming a rod-like body and a tongue piece portion straddling the second gap,
  • the tongue piece part is formed so that the tip protrudes from the tip part of the push rod part,
  • a pressing portion that pushes the wedge end, and a claw portion that hooks and supports the end of the wedge,
  • the wedge part is pushed and inserted by the pressing part.
  • the second gap is a gap formed by adjacent pairs of the blade shaft and the wedge guide shaft that is in contact with the blade shaft, and is a gap through which the coil bundle passes. Since the stripper pushes up the curved portion of the coil bundle end that is hooked in the second gap, the second gap in which the coil bundle is hooked is attracted to the coil bundle and is deformed.
  • the wedge guide shaft will be slightly curved or twisted. However, since the tongue piece is positioned so as to straddle the inside and outside of the second gap, even if the blade shaft or the like is deformed, the state where the tongue piece is located in the second gap is maintained, and the push rod However, there is no large deviation in the slot hole following the deformation of the blade shaft or the like. Thereby, it is possible to press the vicinity of the corners on both sides with the pressing portion, and it is difficult to apply the pressing force because it is biased to a part of the wedge, and the pushing force is distributed to the entire edge of the wedge.
  • a wedge portion is formed by a gap formed by a surface on the outer side of the axial center of the protruding portion of the tongue piece matched to the thickness of the wedge and a surface on the inner side of the axial center of the claw portion. Since the web end portion is sandwiched and held from both sides, the wedge does not slip out and does not buckle.
  • the axis means the axis of the stator (hereinafter the same).
  • the wedge pusher that presses the wedge end also at the base end of the wedge guide gap so that the extension line of the base end of the gap coincides with the pressing portion of the push rod and contacts the tip of the wedge end. If the wedge is pushed as a whole, it is more preferable to prevent the wedge from buckling. Accordingly, even when the insertion resistance is large, the wedge can be inserted without buckling or damaging it, and it is possible to eliminate the defective insertion of the wedge or the failure of the electric motor due to buckling.
  • a wedge is arranged on an axis of a gap that guides a wedge formed by an adjacent wedge guide shaft in a wedge magazine that accumulates the wedge and arranges the wedge at a predetermined position.
  • the wedge pusher is moved along its axis to push out the wedge.
  • the wedge in the above position is set so that the upper portion of the surface of the tongue piece on the axially outer side is in contact with the lower side of the surface on the axially inner side of the web portion of the wedge.
  • the wedge pusher extends so that the wedge follows the tongue piece, and the wedge is guided to the nail portion where the tip is located near the pressing portion rather than the tip of the tongue piece, and the wedge The web part is sandwiched between the gap parts.
  • it is easy to guide the wedge to a predetermined position at the tip of the push rod, and the wedge sandwiched between the tongue piece portion and the claw portion is guided to the predetermined position and reliably guided without dropping to the slot. It is possible.
  • the base end of the gap portion is more open than the open end portion of the gap portion so as to warp the web end portion sandwiched by the gap portion.
  • the portion is located on the inner side of the axial center.
  • the cross-sectional shape of the wedge is substantially U-shaped by bending the both ends of the web portion to form a flange.
  • the gap portion is formed to be inclined or curved so that the web portion of the wedge is bent in the direction opposite to the side where the flange is formed.
  • the web portion sandwiched between the tongue piece portion and the claw portion warps in the direction opposite to the flange-formed side, and the flange portion of the wedge protruding from the slot insertion opening forms the flange. It will not bend to the side where it was done.
  • partial buckling of the flange portion on the slot insertion side can also be prevented, and defects in the motor due to wedge buckling can be eliminated.
  • the length of the tongue piece protruding from the tip of the push rod is an opening on the insertion side of the coil bundle of the slot.
  • the insertion end of the wedge is longer than the length from which the wedge protrudes.
  • the wedge web that is outside the slot is also inserted.
  • the wedge is supported by the entire length of the back surface of the protrusion, and the wedge is sandwiched between the surface on the outer side of the axial center of the protrusion and the inner surface of the coil bundle or the inner side of the claw portion and is not constrained to be deformed. It is said. Accordingly, even when only the wedge is pushed in, the web portion can be prevented from bending and buckling to the axial center side, and can be inserted to a predetermined position.
  • the outer side of the axial center of the shaft tip of the push rod is forward from the shaft base toward the push rod tip.
  • the tongue piece is formed so as to be thin, and the tongue piece extends from the vicinity of the inclined base end toward the axial direction toward the inclined rear surface side of the push rod shaft.
  • the tip of the push rod is formed so as to be inclined outwardly from the axial center approaching the curved portion of the coil bundle hooked on the blade, and the space between the wedge guides is increased. . This makes it difficult for the coil curve portion at the insertion end of the coil bundle into which the wedge is inserted to compete with the tip portion of the push rod.
  • the inclination angle is preferably 5 degrees to 10 degrees.
  • the tongue piece portion extends toward the tip of the push rod shaft along the inclined back surface of the push rod shaft, and improves the rigidity in the axial center inside and outside of the inclined portion that is thin and easy to deform. ing.
  • the tilt angle is set to a small tilt angle so that it is difficult to compete with the coil bundle, and even if the tilted portion of the push rod tip becomes long, the deformation of the push rod tip portion does not increase, and the wedge is positioned at a predetermined position. Can be inserted without buckling.
  • the coil curve portion and the tip end portion of the push rod are unlikely to compete with each other, the coil wire is hardly damaged, and the cause of the failure of the electric motor is reduced.
  • the radial width of the tongue piece portion straddling the second gap is aligned with the width of the second gap. It is characterized by that. Since the width of the tongue piece portion is a wide width that matches the second width, it is easier to follow the deformation of the blade and the wedge guide, and the wedge pusher is not biased in the guide space formed by the wedge guide. As a result, the wedge being inserted and the tip of the wedge pusher are not misaligned, a gap that is biased to the side of the wedge pusher tip is not generated, and the wedge is not caught in the gap, so that the wedge is smoother. Can be inserted.
  • a streak-like vertical groove is formed along the axial direction at the distal portion of the push rod, and the tongue piece is the vertical groove. It is characterized by being fixed to.
  • the wedge pusher is composed of a push rod part and a tongue piece part, and the tongue piece part is fitted and fixed in a longitudinal groove formed in the push rod tip part. It is preferable to fix with a high-strength anaerobic adhesive or the like.
  • the wedge pusher of the wedge insertion machine of the present invention can be manufactured more easily than grinding and molding one shaft body. Further, when the two parts are integrated by welding, the shaft is deformed. However, deformation of the shaft can be prevented by fixing with an adhesive or the like. Thereby, the wedge insertion machine provided with the push rod with high accuracy at low cost can be manufactured.
  • the seventh invention of the present invention is characterized in that, in the wedge insertion machine of the first to sixth inventions, a side edge portion of the claw portion protrudes sideways. Since the side edge of the claw protrudes laterally in the slot hole, the web portion of the wedge can be widely supported in the slot. As a result, the wedge can be inserted to a predetermined position without causing partial deformation of the central portion of the web portion of the wedge.
  • the eighth invention of the present invention is a coil insertion device including the wedge insertion machine of the first to seventh inventions.
  • the wedge pusher can be manufactured separately from the stripper, and the manufacturing cost can be suppressed. Further, the stripper and the wedge pusher can be individually controlled and stretched.
  • a coil insertion device that inserts a multi-phase coil at a time, there is a time lag between the coil insertion operation of the phase inserted first and the coil insertion operation of the phase inserted later. Even so, it is possible to control so that the wedge is inserted into the previous phase by the push rod that operates first, and then the wedge is inserted by the push rod that operates later. Thereby, even in the multi-phase coil insertion device, it becomes easy to insert the wedge without buckling so as to protrude to a predetermined position in accordance with the insertion operation of the coil of each phase.
  • a high-density coil bundle can be obtained only by changing the wedge insertion machine portion of the conventional coil insertion device, and further by changing only the wedge pusher portion.
  • a stator core having a high driving ability in which is inserted can be manufactured.
  • the stator core which does not have the poor insertion of a wedge can be provided, suppressing the installation expense of manufacturing equipment. As a result, it is possible to provide an electric motor that is less likely to cause a failure resulting in poor insulation at low cost.
  • the wedge by inserting the wedge to a predetermined position without buckling, it is possible to prevent an insulation failure of the coil bundle and to provide a motor with stable quality.
  • Example 1 For the purpose of inserting the coil bundle inserted into a predetermined position without damaging the wedge pusher from the tip of the wedge pusher and without buckling, the axis of the stator core of the wedge pusher (hereinafter referred to as the shaft center) is used.
  • the tip of the surface on the opposite side is inclined, and the tongue piece is formed to protrude from the tip of the wedge pusher so as to straddle the slot opening on the opposite side of the inclined surface.
  • a gap inclined obliquely leaving a claw portion was cut to provide a gap portion.
  • FIG. 1 is an explanatory view for explaining the configuration of the wedge pusher 10 in which the wedge 40 that is the insulating paper is inserted into the slot of the stator core 50 that is the stator core of the electric motor to which the slot insulating paper 52 is attached.
  • the slot 51 is a space between adjacent tooth portions 54 formed in the stator core 50 in an annular shape.
  • one of the slots 51 is illustrated and described, but the wedge 40 is inserted by the wedge pusher 10 also in the other slots.
  • the stator core is fixed to the stator core support portion 55 (see FIG. 2) in a state in which the slot insulating paper 52 is attached in advance to three walls constituting the tooth portion 54 of the stator core of each slot.
  • the wedge 40 is guided along the wedge guide while being supported on the tip of the wedge pusher 10 extending in the axial direction of the stator core, and closes the streak-like gap 53 of the slot opened on the axial center side of the stator core.
  • the coil bundle 60 (see FIG. 10) is insulated from the wall surface of the stator core surrounding the slot 51 by the slot insulating paper 52 and the wedge 40.
  • the wedge pusher 10 includes a push rod 20 that is a shaft body and a tongue piece 30.
  • the tip of the push rod is formed with an inclined portion 21 so that the tip of the opposite surface is thinner than the axis.
  • a tongue piece 30 is formed to project from the axial center surface of the push rod 20.
  • the tongue piece portion 30 is fixed to a longitudinal groove 35 (see FIG. 5) having a width corresponding to the thickness of the tongue piece portion 30 with an adhesive having a high adhesive strength on the axial center side surface of the push rod 20. ing. However, it does not necessarily need to be bonded, and may be formed by integral molding.
  • the thickness of the tongue piece 30 is preferably a width corresponding to the streak-like gap 53 of the slot.
  • the width of the gap formed by adjacent wedge guide shafts is narrower than the width of the streak-shaped gap, the width may be a width corresponding to the width of the gap formed by the wedge guide shaft.
  • the length (H0) of the protruding portion 32 of the tongue piece portion 30 protruding from the distal end surface 22 of the push rod 20 is longer than the length (H1) of the wedge protruding end 45 protruding from the slot (see FIG. 10). Is done.
  • the tongue piece 30 is formed with a gap proximal end of the gap 34 so as to have the same height as the distal end surface 22 of the push rod 20. Further, from the base end surface of the gap portion 34, the claw portion 33 extends so as to be inserted into the slot so as to sandwich the wedge, thereby forming a gap portion corresponding to the thickness of the wedge.
  • the wedge 40 has a substantially U-shaped cross section, and includes a long web 41 and flange portions 42 and 43 that are folded from both edges of the web 41 and extend in the same direction as the web.
  • the length of the wedge is longer than the thickness of the stator core 50 by the length of the insulation surplus length (H1) protruding upward and downward from the slot 51 (see FIG. 10).
  • the insulation surplus length is about 4 mm.
  • FIGS. 2 is a sectional view for explaining a longitudinal section of the coil insertion device
  • FIG. 3 is a perspective view of the coil and wedge insertion mechanism
  • FIG. 4 is an explanatory view of a transverse section of the coil and wedge insertion mechanism.
  • FIG. 3 shows a perspective view of the stripper 71 extending along the blade shaft 72 for inserting the coil bundle into the slot.
  • an auxiliary stripper 74 is formed at the tip of the stripper 71 to push in the coil bundle inserted in advance when the two-phase coil bundles 60 and 61 are inserted.
  • the coil insertion device 1 includes a coil insertion mechanism 70 for inserting the coil bundle 60 into the slot 51 and a wedge insertion machine 90 for inserting a wedge into the slot while the stator core 50 is fixed by the stator core support portion 55.
  • the coil insertion mechanism 70 includes a stripper 71, a blade, a wedge guide, and a stripper driving unit (not shown).
  • the wedge insertion machine 90 includes a wedge pusher 10, a wedge magazine 91, and a wedge pusher drive unit (not shown).
  • the blade is composed of blade shafts 72 arranged in a ring shape so as to extend in a comb shape (see FIG. 3).
  • the stripper 71 is formed with external teeth 75 at positions corresponding to the gaps formed between the adjacent blade shafts 72, and extends along the blade shaft 72 inwardly of the blades, to the blade shaft 72 and the wedge guide shaft 73.
  • the hooked coil bundle 60 is inserted by being pushed into the slot 51 from the gap 53 (see FIG. 1) on the axial center side of the slot.
  • the wedge guide shaft 73 is arranged along the blade shaft 72 in alignment with the outside of the blade shaft 72, and forms a streak-like space for guiding the wedge 40 to the slot 51 between the adjacent shafts.
  • the stripper 71 according to the first embodiment is provided with an auxiliary stripper 74 that guides a coil bundle of different phases in advance of a coil bundle of another phase, and a multi-phase coil bundle is inserted by one stretching operation of the stripper. It has come to be.
  • the wedge pusher 10 supports the wedge 40 and extends in accordance with the extension of the stripper 71 along the space.
  • the coil bundle includes a coil bundle 60 inserted in advance by the auxiliary stripper 74 (shown by a solid line in FIG. 4) and a coil bundle 61 inserted by following the coil bundle 60 (shown by a two-dotted line in FIG. 4).
  • the wedges 40 are inserted into the slots in the gaps following the insertion of the coil bundles.
  • FIG. 5A is an enlarged view of a part of the cross section (position of FIG. 2B) of the coil insertion mechanism 70.
  • FIG. 5 (B) is a plan view of the wedge pusher in a state of being supported with the wedge interposed therebetween
  • FIG. 5 (C) is a front view of the same state
  • FIG. 5 (D) is a right side view of the same state.
  • the cross-sectional shape of the push rod 20 which is the shaft portion of the upper tip wedge pusher 10 is a shape corresponding to the cross-sectional shape of the gap formed by the adjacent wedge guides 73 and 73 (FIG. 5A).
  • the tip portion of the push rod 20 is formed with an inclined surface 21 on the side opposite to the axis so that the tip is thin.
  • the inclination angle ( ⁇ ) is set to 5 degrees in order to avoid interference with the coil bundle.
  • the protruding height ( ⁇ ) of the tongue piece in the axial direction inside and outside the shaft is set to a required protruding dimension, and deformation in the axial direction inside and outside is prevented.
  • the protrusion dimension ( ⁇ ) is 4 mm.
  • the width of the wedge groove for supporting the wedge is a width corresponding to the thickness of the wedge of 0.5 mm, and the length ( ⁇ ) of the tip portion of the tongue piece portion protruding from the slot is from the slot. It is formed longer than the length ( ⁇ ) of the claw portion corresponding to the length of the wedge protruding end 45 (see FIG. 10) to be protruded.
  • Example 1 the length ( ⁇ ) of the tip portion of the tongue piece portion is 13 mm, and the length ( ⁇ ) of the claw portion is 4 mm. Moreover, the width
  • FIGS. 6 is a perspective view of the tip of a conventional wedge pusher
  • FIG. 7 is a perspective view of the tip of a conventional improved wedge pusher
  • FIG. 8 is an explanatory view of wedge insertion in the case of a conventional improved type
  • FIG. 10 is an explanatory view of wedge insertion by the wedge pusher according to the first embodiment.
  • the shape of the tip of the conventional push rod 80 will be described with reference to the perspective view shown in FIG.
  • An inclined portion 82 is formed at the push rod tip 81.
  • this push rod shape when the wedge slips on the back surface opposite to the inclined surface, there is a problem that the wedge cannot be pushed out by being sandwiched between the wedge pusher and the wedge guide shaft. Therefore, as shown in the perspective view of FIG. 7, in the improved push rod 83, a protrusion 86 is provided on the opposite side of the tip inclined surface 85 so as to enter the wedge guide gap, and the wedge is inclined to the inclined surface 85. I was prevented from slipping back to the opposite side.
  • the upper portion 44 of the wedge can be inserted into a predetermined position protruding from the slot.
  • the coil bundle protruding from the upper portion of the stator core and the teeth 54 of the stator core cannot be insulated by the upper portion 44 of the wedge.
  • the protruding portion 32 of the tongue piece portion 30 is higher than the height (H1) of the protruding end 45 of the wedge, extends from the push rod front end surface 22 to protrude a predetermined height (H0), and the wedge 40 is finally inserted. It becomes the state which contact
  • the protruding end 45 of the web portion of the wedge is sandwiched between the outer side of the axial center of the front portion 32 and the claw portion 33 that forms the gap portion 34 by separating the distance of the thickness of the wedge 40 therefrom.
  • the base end of the gap is positioned on the inner side of the axial center from the open end of the gap 34, and the protruding end 45 of the wedge is on the inner side of the axis opposite to the direction in which the flange is formed.
  • the push rod tip 22 is positioned at the same height as the gap base end of the gap 34, touches the entire web end surface of the wedge 40, pushes up the wedge in the extending direction of the wedge pusher 20, and is inserted into the slot.
  • a small inclined portion 21 is formed from the tip of the claw portion 33, and the position of the end portion 62 of the coil bundle that is difficult to be bent from the slot of the coil bundle 60 is less likely to compete. It is hard to damage the coil bundle.
  • Embodiment 2 in which the tip of the push rod is cut to form a claw portion extending from the inclined surface, and the tongue piece portion is fixed to the back surface thereof will be described.
  • the wedge pusher according to the second embodiment is provided with a claw portion 36 having a chamfer portion 36 whose outer edge is gently curved at the tip thereof by grinding the outer side of the axial center of the push rod 20 at the same small angle as in the first embodiment.
  • a surface 21 is formed.
  • Wedge extruding portions 24 (22, 34) having the same height in the axial direction are formed at the base end portion of the claw portion so as to surround both sides of the base end portion and the opposite side to the inclined surface.
  • an axial longitudinal groove (see FIG. 5 of the first embodiment) formed in the vicinity of the tip of the push rod has a tongue piece portion 30 having a width matching the width of the longitudinal groove. Insert and fix.
  • the tongue piece 30 is fixed to the surface on the opposite side of the inclined surface in the axial direction, the protrusion 32 extends beyond the tip of the claw, and the protrusion of the wedge extends longer than the length protruding from the slot. ing.
  • a gap 34 is provided between the tongue piece 30 and the claw 36 with an interval corresponding to the thickness of the wedge. Then, the web portion of the wedge is sandwiched between the gap portions 34 so as not to slip off from the push rod tip 22 inward and outward of the axial center.
  • the wedge web portion is pushed by the pushing portion located at the base end portion of the gap portion 34, and the wedge flange portion is pushed by the pushing portion of the push rod tip 22 portion located on both sides of the claw portion, so that the shaft of the wedge is pushed. Push up the direction end without biasing.
  • the wedge does not slip off from the tip of the wedge pusher, and is inserted to a predetermined position without buckling.
  • the setting direction of the stator core is not limited, and a coil may be inserted with the axis set in the horizontal direction.
  • ⁇ Wedge insertion machine provided a wedge magazine under the stator core and pushed out the wedge with a wedge pusher from below, but provided a wedge magazine at another position to correspond to the position of the slot opening. After the wedges are arranged, the wedges arranged below the stator core may be moved and then pushed up.

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Power Engineering (AREA)
  • Manufacture Of Motors, Generators (AREA)
  • Insulation, Fastening Of Motor, Generator Windings (AREA)

Abstract

L'invention concerne un appareil d'insertion de clavettes ou un appareil d'insertion de bobines comprenant l'appareil d'insertion de clavettes. Un pousseur de clavette est composé d'une section tige de poussée comprenant un corps en forme de tige et une section en forme de languette. La partie antérieure de la section en forme de languette fait saillie par rapport à l'extrémité avant de la section tige de poussée afin de supporter la face arrière de la clavette dans la phase finale d'insertion, de telle sorte que la clavette peut être insérée dans une position prédéterminée sans déformation.
PCT/JP2011/054749 2011-03-02 2011-03-02 Appareil d'insertion de clavettes et appareil d'insertion de bobine WO2012117535A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
PCT/JP2011/054749 WO2012117535A1 (fr) 2011-03-02 2011-03-02 Appareil d'insertion de clavettes et appareil d'insertion de bobine
CN201180068338.5A CN103460570B (zh) 2011-03-02 2011-03-02 楔片插入机及线圈插入装置
JP2012554548A JP5229929B2 (ja) 2011-03-02 2011-03-02 ウェッジ挿入機及びコイル挿入装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2011/054749 WO2012117535A1 (fr) 2011-03-02 2011-03-02 Appareil d'insertion de clavettes et appareil d'insertion de bobine

Publications (1)

Publication Number Publication Date
WO2012117535A1 true WO2012117535A1 (fr) 2012-09-07

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JP2018074689A (ja) * 2016-10-26 2018-05-10 日本電産株式会社 絶縁シート挿入装置、絶縁シート挿入方法、ステータ製造装置、モータ
CN112531990B (zh) * 2020-12-07 2022-04-29 安徽泰莱德自动化技术有限公司 一种电机槽楔压装装置及其使用方法
KR102636421B1 (ko) 2021-09-24 2024-02-15 주식회사 야호텍 인서트 보호기능이 구비된 전동기 코어 슬롯 내부에 코일을 삽입하는 장치
CN116073609B (zh) * 2023-03-30 2023-06-06 山东瑞博电机有限公司 一种电动机定子自动绕线组合加工机床

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KR102636425B1 (ko) 2021-10-15 2024-02-15 주식회사 야호텍 밀림 방지용 지지대가 구비된 코일 인서트 툴

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