JP2013106402A - Winding method and winding device for coil - Google Patents

Abstract

PROBLEM TO BE SOLVED: To quickly wind a coil, formed by stacking straight-angle conductors spirally while edge-wise bending is carried out, without disorder of winding with a simple configuration.SOLUTION: A coil 1 is formed by stacking straight-angle conductors 10 spirally while performing edge-wise bending. In a process of forming the coil 1, a vibration preventing plate 19 for suppressing vibration of the coil 1 is arranged above the coil 1 at an interval of a gap Gn with the coil 1. In this case, the vibration preventing plate 19 is fixed at a constant position in the process of forming the coil 1 to gradually reduce the gap between the coil 1 and the vibration preventing plate 19.

Description

  The present invention relates to a coil winding method and a winding apparatus for forming a coil by spirally stacking rectangular conductor wires while performing edgewise bending.

  Conventionally, there has been proposed a winding method for forming a coil having a polygonal cross-section by stacking flat conductors in a spiral shape while being edgewise bent. As an example, the winding method of the coil of the following patent document 1 is mentioned.

  In this winding method, a rectangular conductor wire fed out for a predetermined length is sandwiched between a fulcrum roller that rotates about its axis and a bender provided on the outer periphery of the fulcrum roller. Then, the operation of turning the bender around the fulcrum roller to bend the flat wire 90 degrees, then feeding the flat wire to the predetermined length, and again turning the bender around the fulcrum roller to bend the flat wire 90 degrees is repeated. As a result, a coil having a polygonal cross section is formed by sequentially stacking rectangular conductor wires in a spiral shape while bending them 90 degrees.

  By the way, in the winding method described above, since the coil is formed by bending the flat conductor wire by 90 degrees sequentially by the fulcrum roller and the bender, the wound coil is centered on the bent portion every time the flat conductor wire is bent. Is rotated 90 degrees each time and is moved sideways each time the flat wire is fed. For this reason, if the coil is to be wound at high speed, the wound coil is swung in the axial direction and the radial direction as it is rotated, causing a phenomenon that the coil is violated, and there is a risk that the deformation of the coil and the gap between the rectangular conductors become large. was there. For this reason, in order to produce a coil by neatly stacking flat conductors, it is necessary to reduce the winding speed. In particular, at the end of the winding, the coil that has been rolled up may fluctuate or shake due to inertia during rotation or movement. For this reason, there is a possibility that the coil cannot be wound. Also from this point, it is necessary to reduce the winding speed in order to maintain a stable coil shape.

  In order to solve this problem, a coil winding method described in Patent Document 2 below has been proposed. In this winding method, a coil guide having a rectangular shape in plan view is provided on the inner peripheral side of the coil to be formed. Then, the coil guide is moved so as to follow the movement of the coil accompanying the sending operation of the flat wire, or the coil guide is rotated and moved so as to follow the rotation of the coil accompanying the bending operation of the flat wire. ing.

JP 2007-74881 A JP 2009-302245 A

  However, in the winding method described in Patent Document 2, in the process of forming the coil, the coil guide must be moved and rotated in a complicated manner while being synchronized with the coil, which requires a complicated moving mechanism and rotating mechanism. . Therefore, it is desired to propose a winding method that can prevent the coil from collapsing with the simplest possible configuration.

  The present invention has been made in view of the above circumstances, and an object of the present invention is to form a coil with a simple configuration at high speed without unwinding with respect to a coil formed by stacking rectangular conductors in a spiral shape while being edgewise bent. An object of the present invention is to provide a coil winding method and a winding apparatus that can be wound.

  In order to achieve the above object, the invention according to claim 1 is a coil winding method for forming a coil by spirally stacking rectangular conductor wires while performing edgewise bending, in the process of forming the coil. The purpose of the present invention is to dispose an anti-rest plate for suppressing vibration of the coil above the coil with a gap from the coil.

  According to the configuration of the present invention, in the process of forming the coil, the steady plate is disposed above the coil with a gap from the coil, so that even if the coil to be wound is about to swing in the axial direction and the radial direction, The upper end of the coil comes into contact with the steadying plate, so that the deflection is suppressed. In addition, since there is a gap between the upper side of the coil and the steady plate, the steady plate is not always in contact with the coil.

  In order to achieve the above object, the invention according to claim 2 is the invention according to claim 1, wherein the coil and the steady rest are fixed by fixing the steady rest plate at a fixed position in the process of forming the coil. The purpose is to gradually reduce the gap with the plate.

  According to the configuration of the above invention, in addition to the operation of the invention according to claim 1, in the process of forming the coil, the gap between the coil and the steady plate is gradually reduced, so that there is little winding of the coil. At the beginning, the gap between the coil and the steady plate may be large, and near the end of the winding where the shake becomes large, the upper end of the coil is in contact with the steady plate, thereby suppressing the shake. Further, since the steady rest plate is fixed at a fixed position, it is not necessary to move the steady rest plate.

  To achieve the above object, the invention according to claim 3 is the invention according to claim 1, wherein the coil and the steady plate are moved by gradually moving the steady plate in the process of forming the coil. The purpose is to keep the gap between and almost constant.

  According to the configuration of the invention, in addition to the operation of the invention according to claim 1, since the gap between the coil and the steady rest plate is kept constant in the process of forming the coil, the process of forming the coil Through that, the upper end of the coil comes into contact with the steady-state plate, so that the deflection is suppressed.

  In order to achieve the above object, according to a fourth aspect of the present invention, in the invention according to any one of the first to third aspects, when the formation of the coil is finished, the upper part of the coil is pressed by the steady plate. Intended to be

  According to the configuration of the invention, in addition to the action of the invention according to any one of claims 1 to 3, the upper part of the coil is pressed by the steady plate when the formation of the coil is finished. Coil swing is suppressed.

  In order to achieve the above object, a fifth aspect of the present invention is a coil winding apparatus comprising a winding mechanism that forms a coil by spirally stacking rectangular conductor wires while performing edgewise bending. In the process of forming the coil by the mechanism, in order to suppress the vibration of the coil, the purpose is to arrange the steady plate above the coil with a gap from the coil.

  According to the configuration of the invention, in the process of forming the coil by the winding mechanism, the steady plate is disposed above the coil with a gap from the coil, so that the coil to be wound is swung in the axial direction and the radial direction. Even if it tries, the upper end of a coil contacts the steadying plate, and the shake is suppressed. In addition, since there is a gap between the upper side of the coil and the steady plate, the steady plate is not always in contact with the coil.

  In order to achieve the above object, according to a sixth aspect of the present invention, in the fifth aspect of the present invention, in the process in which the steadying plate is fixed at a fixed position and the coil is formed by the winding mechanism, The purpose is to gradually reduce the gap with the stop plate.

  According to the configuration of the invention, in addition to the action of the invention according to claim 5, in the process of forming the coil by the winding mechanism, the gap between the coil and the steady rest plate is gradually reduced. When there is almost no winding, the gap between the coil and the steady-state plate may be large. Near the end of the winding where the deflection becomes large, the upper end of the coil is in contact with the steady-state plate, so that the deflection is suppressed. Further, since the steady rest plate is fixed at a fixed position, it is not necessary to move the steady rest plate.

  In order to achieve the above object, the invention according to claim 7 is the invention according to claim 5, further comprising a moving mechanism for moving the steady rest plate, and in the process of forming the coil by the winding mechanism, The purpose of this is to keep the gap between the coil and the steady-state plate substantially constant by gradually moving the steady-state plate by the above.

  According to the configuration of the invention, in addition to the action of the invention according to claim 5, the gap between the coil and the steady rest plate is kept constant in the process of forming the coil by the winding mechanism. Through this process, the upper end of the coil comes into contact with the steady-state plate, so that the deflection is suppressed.

  In order to achieve the above object, according to an eighth aspect of the present invention, in the seventh aspect of the invention, when the formation of the coil by the winding mechanism is finished, the steadying plate is moved by the moving mechanism. The purpose is to hold the upper part of the coil with a plate.

  According to the configuration of the invention described above, in addition to the action of the invention according to claim 7, when the formation of the coil by the winding mechanism is finished, the upper part of the coil is pressed by the steady plate, so that even after the winding is finished, Shake is suppressed.

  According to the first aspect of the present invention, the coil formed by spirally stacking the rectangular conductor wires while being edgewise bent can be wound at a high speed without being collapsed by a simple configuration.

  According to the invention described in claim 2, in addition to the effect of the invention described in claim 1, the configuration of the winding device can be simplified by the amount that the steady rest plate is not moved.

  According to the third aspect of the present invention, the coil deflection can be more reliably prevented with respect to the effect of the first aspect of the invention.

  According to the invention described in claim 4, in addition to the effects of the invention described in any one of claims 1 to 3, the formed coil can be securely held at a fixed position, and the formed coil can be taken out. It can be easy.

  According to the fifth aspect of the present invention, a coil that is formed by spirally stacking rectangular conductor wires while being edgewise bent can be wound at a high speed without being collapsed by a simple configuration.

  According to the invention described in claim 6, in addition to the effect of the invention described in claim 5, the configuration of the winding device can be simplified by the amount that the steady rest plate is not moved.

  According to the seventh aspect of the present invention, the coil shake can be more reliably prevented with respect to the effect of the fifth aspect of the present invention.

  According to the invention described in claim 8, in addition to the effect of the invention described in claim 7, the formed coil can be securely held at a fixed position, and the coil after forming can be easily taken out. be able to.

The perspective view which shows the coil which concerns on 1st Embodiment and is formed with the winding method of a coil. The front view which concerns on the same embodiment and shows a part of winding apparatus for winding a coil. The top view which concerns on the same embodiment and shows a part of winding apparatus similarly. Sectional drawing which shows the principal part of the winding apparatus shown in FIG. 2 concerning the embodiment. The schematic diagram which shows one of the processes which concern on the same embodiment and forms a coil, while carrying out the edgewise bending process of the flat conducting wire with a winding mechanism. The schematic diagram which shows one of the processes which concern on the same embodiment, and forms a coil, carrying out the edgewise bending process of the flat conducting wire similarly by a winding mechanism. The schematic diagram which shows one of the processes which concern on the same embodiment, and forms a coil, carrying out the edgewise bending process of the flat conducting wire similarly by a winding mechanism. The schematic diagram which shows one of the processes which concern on the same embodiment, and forms a coil, carrying out the edgewise bending process of the flat conducting wire similarly by a winding mechanism. FIG. 4 is a cross-sectional view schematically showing a positional relationship between the coil at the beginning of winding and the steady-state plate in the process of forming the coil according to the same embodiment. FIG. 6 is a cross-sectional view schematically showing a positional relationship between the coil at the winding end stage and the steady rest plate in the process of forming the coil according to the same embodiment. Sectional drawing which is a process in connection with 2nd Embodiment, and is a process in which a coil is formed, Comprising: The positional relationship of the coil and the steadying plate of a winding start stage is shown roughly. FIG. 6 is a cross-sectional view schematically showing a positional relationship between a coil in the middle stage of winding and a steady-state plate in the process of forming the coil according to the same embodiment. Sectional drawing which concerns on 3rd Embodiment and shows schematically the relationship between a coil and a steady-state board when formation of a coil is complete | finished. The perspective view which concerns on 4th Embodiment and shows the principal part of a winding apparatus.

<First Embodiment>
DETAILED DESCRIPTION Hereinafter, a first embodiment in which a coil winding method and a winding apparatus according to the present invention are embodied will be described in detail with reference to the drawings.

  FIG. 1 is a perspective view showing a coil 1 formed by the coil winding method in this embodiment. As shown in FIG. 1, the coil 1 is formed by stacking a rectangular conducting wire 10 in a spiral shape while being edgewise bent, and has a polygonal cross section. One turn of the coil 1 is rectangular with a pair of long sides 1a and a pair of short sides 1b. As the flat conducting wire 10, a strip-like metal having good conductivity such as copper or aluminum is used. An insulating coating is applied to the surface of the flat conducting wire 10. As the insulating coating, a resin that can ensure insulation, such as enamel, polyimide, and amideimide, is used. Both ends of the rectangular conducting wire 10 constituting the coil 1 are terminals 2 and 3. By arranging such a coil 1 on the stator core and resin-molding the coil end, a final stator product is obtained. A motor is obtained by covering the final stator product with a casing and assembling a separately manufactured rotor in the hollow portion of the stator.

  FIG. 2 is a front view showing a part of the winding device 11 for winding the coil 1 described above. FIG. 3 is a plan view showing a part of the winding device 11. FIG. 4 is a sectional view showing the main part of the winding device 11 shown in FIG. As shown in FIGS. 2 and 3, the winding device 11 includes a winding mechanism 13 on the top of the machine base 12. The winding mechanism 13 is for forming the coil 1 by spirally stacking the flat wire 10 while performing edgewise bending. The winding mechanism 13 includes a table 21, a coil presser 22 provided corresponding to the table 21, a coil bending piece 23, a first conductor guide 24, and a second conductor guide 25. The machine base 12 is provided with a turntable 31 that rotates integrally with the coil bending piece 23. The coil retainer 22 has a rod shape and includes a shaft portion 22a and a flange portion 22b at the tip.

  As shown in FIGS. 2 and 3, the machine base 12 is provided with a cam mechanism 41 for moving the coil presser 22 up and down, drive shafts 42 and 43, and a first motor 44. Further, the machine base 12 is provided with a rotation mechanism 32 for rotating the turntable 31 together with the coil bending piece 23. The rotation mechanism 32 includes a second motor 33, a speed reducer 34, a drive gear 35, and a driven gear 36. As shown in FIG. 4, a cylinder 39 that is rotatably supported by bearings 37 and 38 is fixed to the driven gear 36. As the cylinder 39 rotates, the turntable 31 rotates integrally with the coil bending piece 22.

  As shown in FIGS. 2 and 4, an elevating cylinder 17 is provided on the side of the table 21 via a stand 16. The elevating cylinder 17 includes rods 17a and 17b configured to be able to arbitrarily adjust the amount of expansion / contraction. A steady rest plate 19 is horizontally supported by brackets 18 at the lower ends of the rods 17a and 17b. By adjusting the amount of expansion and contraction of these rods 17a and 17b, the vertical position of the steady rest plate 19 can be adjusted. The steady rest plate 19 is for suppressing the shake of the coil 1 in the process of forming the coil 1 by the winding mechanism 13, and the coil 1 and the gap G1 (see FIG. 9) are separated above the formed coil 1. Are arranged. In this embodiment, the lifting cylinder 17 corresponds to a moving mechanism of the present invention that moves the steady rest plate 19.

  In addition, the winding device 11 includes a bobbin (not shown) around which the flat conducting wire 10 is wound in advance, a conducting wire feeding mechanism (not shown) for sending out the flat conducting wire 10, and intermittently clamping the fed rectangular conducting wire 10. A clamping mechanism (not shown) and the like.

  5 to 8 schematically show the process of forming the coil 1 while the flat wire 10 is edgewise bent by the winding mechanism 13 described above.

  First, as shown in FIG. 5, long-side feed is performed corresponding to the long side 1a of the coil 1 (see FIG. 1). That is, the rectangular wire 10 wound around the bobbin (not shown) is fed by the length of the long side 1a of the coil 1 toward the coil retainer 22 by operating the wire feed mechanism (not shown). Thereafter, the flat wire 10 is gripped by the wire feed mechanism, and the flat wire 10 is fed by the length of the long side 1a of the coil 1 and the flat conductor 10 is clamped by a clamp mechanism (not shown). And the holding | grip by a conducting wire feed mechanism is cancelled | released and a conducting wire feed mechanism is returned to an initial position. At this time, the coil holding part 22 is lifted by raising the coil retainer 22.

  Thereafter, the flat wire 10 is pressed between the flange portion 22b of the coil presser 22 and the table 21 or the like by lowering the coil presser 22. The coil retainer 22 has a structure that does not descend any further when lowered to a predetermined position. For this reason, a predetermined gap is formed between the lower surface of the flange portion 22 b and the upper surface of the table 21. This gap is set to be substantially the same as the minimum plate width of the flat conducting wire 10. Therefore, the flat conducting wire 10 is sandwiched between the flange portion 22b of the coil retainer 22 and the table 21 or the like.

  In this state, the coil bending piece 23 is rotated by a predetermined angle. Since the coil bending piece 23 is in contact with the side surface of the flat wire 10, the flat wire 10 is pressed against the outer periphery of the shaft portion 22 a of the coil retainer 22 by rotating the coil bending piece 23 as shown in FIG. 6. While being edgewise bent.

  As a result, as shown in FIG. 7, the flat conducting wire 10 is edgewise bent by “90 degrees”. Since the flat conducting wire 10 is bent along the outer periphery of the shaft portion 22a of the coil retainer 22, the inner peripheral diameter of the bent portion of the flat conducting wire 10 is equal to the outer diameter of the shaft portion 22a.

  Thereafter, the coil presser 22 is raised to release the press of the flat wire 10 by the table 21 and the like, and the coil bending piece 23 is returned to the initial position shown in FIG.

  Then, the clamp by the clamp mechanism of the flat conducting wire 10 is released, and the flat conducting wire 10 is gripped by the conducting wire feeding mechanism. Then, short side feeding is performed corresponding to the short side 1b (see FIG. 1) of the coil 1. In other words, the flat wire 10 wound around the bobbin is fed by the short side 1b of the coil 1 toward the coil retainer 22 by operating the wire feed mechanism. And after holding the flat conducting wire 10 by a conducting wire feeding mechanism and sending the flat conducting wire 10 by the short side 1b of the coil 1, the flat conducting wire 10 is clamped by a clamping mechanism. And the clamp by a conducting wire feed mechanism is cancelled | released and a conducting wire feed mechanism is returned to an original position.

  Thereafter, the coil presser 22 is lowered to press the flat conducting wire 10 between the flange 22b and the table 21 or the like. By rotating the coil bending piece 23 in this state, the flat wire 10 is edgewise bent while being pressed against the outer periphery of the shaft portion 22a of the coil retainer 22 as shown in FIG. In this way, the coil 1 having a polygonal cross section is formed by stacking the bent rectangular conductors 10 in a spiral manner while repeating the feeding of the rectangular conductors 10 and the edgewise bending process.

  Here, the relationship between the formed coil 1 and the steady rest plate 19 will be described. FIG. 9 is a process in which the coil 1 is formed, and the positional relationship between the coil 1 at the initial stage of winding and the steady rest plate 19 is schematically shown in cross-sectional view. FIG. 10 is a process in which the coil 1 is formed, and the positional relationship between the coil 1 at the winding end stage and the steady rest plate 19 is schematically shown by a cross-sectional view. In the coil winding method of this embodiment, in the process of forming the coil 1, the steady plate 19 is disposed above the coil 1 with the coil 1 and the gap G1 therebetween. Moreover, in this embodiment, the gap G1 between the coil 1 and the steady plate 19 is gradually reduced by fixing the steady plate 19 at a fixed position.

  Here, in this embodiment, as shown in FIG. 10, the distance S1 between the table 21 and the steady rest plate 19 is set to the final thickness (the height in the axial direction) T1 of the coil 1, and the final coil. 1 is set to a value obtained by adding a necessary gap Gn to be secured between the upper end of 1 and the steady rest plate 19. In this embodiment, the necessary gap Gn can be set to a value of “greater than 0% and less than or equal to 50%” of the final thickness T1 of the coil 1, although it varies depending on the shape and size of the coil.

  As described above, according to the coil winding method and the winding apparatus in this embodiment, in the process of forming the coil 1, the steady rest plate 19 is separated from the coil 1 and the gap G1 above the coil 1. Therefore, even if the coil 1 to be wound is swung in the axial direction and the radial direction, the swing of the coil 1 is suppressed by contacting the steady plate 19. For this reason, the shake of the coil 1 can be prevented by a simple configuration in which only the steadying plate 19 is provided. Further, since there is a gap G <b> 1 between the upper side of the coil 1 and the steady plate 19, the steady plate 19 does not always contact the coil 1. For this reason, in the process in which the coil 1 is wound, the steady rest plate 19 does not interfere with the winding operation of the coil 1, and the winding speed of the coil 1 can be increased. Further, friction between the steady rest plate 19 and the coil 1 can be prevented, and the coating film of the coil 1 can be protected. In other words, the coil 1 can be wound at a high speed without being collapsed by a simple configuration in which the steady plate 19 is provided for the coil 1 formed by spirally stacking the rectangular conductor wire 10 while performing edgewise bending.

  Here, the coil 1 swings in the process of forming the coil 1 as shown in FIG. 10 because the coil 1 is wound and the acceleration / deceleration and centrifugal force act on the coil 1 as shown by the arrow F1. This is because the deflection force indicated by the arrow F2 acts obliquely upward from the center of gravity C1 of the coil 1.

  In this embodiment, in particular, in the process of forming the coil 1, the steady plate 19 is fixed at a fixed position so that the gap G1 between the coil 1 and the steady plate 19 is gradually reduced. Yes. Therefore, at the beginning of the winding in which there is almost no vibration of the coil 1, the gap G1 between the coil 1 and the steady plate 19 may be large. On the other hand, near the end of winding where the deflection becomes large, the deflection of the coil 1 is suppressed by contacting the steady plate 19. Further, since the steady rest plate 19 is fixed at a fixed position, it is not necessary to move the steady rest plate 19. For this reason, it is not necessary to operate the raising / lowering cylinder 17 as much as the steady rest plate 19 is not moved, the configuration for controlling the cylinder 17 can be omitted, and the configuration can be simplified. In this embodiment, the elevating cylinder 17 is provided. However, the cylinder 17 may be omitted if necessary, and the steadying plate 19 may be fixed to the stand 16 or the like.

Second Embodiment
Next, a second embodiment that embodies a coil winding method and a winding apparatus according to the present invention will be described in detail with reference to the drawings.

  In the following description, the same components as those in the first embodiment are denoted by the same reference numerals, description thereof is omitted, and different points are mainly described.

  FIG. 11 is a process in which the coil 1 is formed, and the positional relationship between the coil 1 at the initial stage of winding and the steady rest plate 19 is schematically shown in cross-sectional view. FIG. 12 is a process in which the coil 1 is formed, and the positional relationship between the coil 1 and the steady rest plate 19 at the middle stage of winding is schematically shown by a cross-sectional view. In this embodiment, unlike the first embodiment, the gap Gn between the coil 1 and the steady plate 19 is kept substantially constant by gradually moving the steady plate 19 in the process of forming the coil 1. I am doing so. That is, as shown in FIG. 11, the coil 1 is positioned between the upper end of the coil 1 and the steady rest plate 19 at any point in time at the beginning of winding of the coil 1 and at the end of winding of the coil 1 as shown in FIG. 12. Thus, a certain necessary gap Gn is ensured. This can be achieved by controlling the operation of the lifting cylinder 17 in accordance with the operation of the winding mechanism 13.

  Also in this embodiment, the necessary gap Gn varies depending on the final shape and size of the coil 1, but can be set to a value of “greater than 0% and 50% or less” of the final thickness T1 of the coil 1. .

  Accordingly, in this embodiment, the necessary gap Gn between the coil 1 and the steady plate 19 is kept constant in the process of forming the coil 1, so that the steady rest of the coil 1 is formed through the process of forming the coil 1. The vibration can be suppressed by touching the plate. For this reason, the shake of the coil 1 can be more reliably prevented with respect to the operational effects of the first embodiment. Further, since the lifting cylinder 17 is only controlled in accordance with the operation of the winding mechanism 13, the coil 1 can be shaken with a relatively inexpensive structure as compared with the case where a coil guide is provided and moved in a complicated manner as in the conventional example. Can be prevented.

<Third Embodiment>
Next, a third embodiment in which the coil winding method and the winding apparatus according to the present invention are embodied will be described in detail with reference to the drawings.

  FIG. 13 is a schematic sectional view showing the relationship between the coil 1 and the steady rest plate 19 when the formation of the coil 1 is completed. In this embodiment, in addition to the configuration of the first or second embodiment, when the formation of the coil 1 by the winding mechanism 13 is finished, the upper portion of the coil 1 is pressed by the steady plate 19. In this embodiment, by operating the lifting cylinder 17 (see FIGS. 2 and 4), the steadying plate 19 is lowered to hold the upper end portion of the coil 1.

  Therefore, according to the coil winding method of this embodiment, when the formation of the coil 1 is finished, the upper portion of the coil 1 is pressed by the steady plate 19, so that the deflection of the coil 1 can be suppressed even after the winding is finished. . For this reason, the formed coil 1 can be reliably held at a fixed position, and the coil 1 after formation can be easily taken out.

<Fourth embodiment>
Next, a fourth embodiment that embodies a coil winding method and a winding apparatus according to the present invention will be described in detail with reference to the drawings.

  In FIG. 14, the principal part of the winding apparatus 11 is shown with a perspective view. This embodiment is different from the second embodiment in that a lifting mechanism 51 for lifting and lowering the steady rest plate 19 is provided instead of the lifting cylinder 17. The lifting mechanism 51 includes a mechanical link 52 that operates mechanically in conjunction with the operation of the winding mechanism 13 of the coil 1. The mechanical link 52 has a steady rest plate that is separated from the upper end of the coil 1 by a certain required gap Gn (FIGS. 11 and 12) as the rectangular conducting wire 10 is spirally stacked while being edgewise bent. 19 is configured to increase at the same speed as the coil 1 winding speed. In this embodiment, the elevating mechanism 51 corresponds to the moving mechanism of the present invention that moves the steady rest plate 19.

  Therefore, in this embodiment, since the lifting mechanism 51 interlocked with the winding mechanism 13 is used, compared with the case where the lifting cylinder 17 used in each of the above embodiments is used, a dedicated mechanism for moving the steady rest plate 19 is used. Power can be omitted.

  The present invention is not limited to the above-described embodiments, and a part of the configuration can be changed as appropriate without departing from the spirit of the invention.

  In each of the embodiments described above, the coil 1 is formed using the specific winding mechanism 13, but this winding mechanism 13 is an example, and other winding mechanisms can be used. In short, any mechanism for automatically winding a coil using a rectangular conducting wire may be used.

  The present invention can be used for manufacturing a coil that forms a coil having a polygonal cross section by stacking a rectangular conductor wire in a spiral shape while being edgewise bent. As a result, the present invention can be used for manufacturing a stator using the coil, and further for manufacturing a rotating electrical machine using the stator.

DESCRIPTION OF SYMBOLS 1 Coil 10 Flat wire 11 Winding apparatus 13 Winding mechanism 16 Stand 17 Lifting cylinder (moving mechanism)
19 Stabilizing plate 51 Elevating mechanism (moving mechanism)

Claims (8)

In the coil winding method of forming a coil by spirally stacking rectangular conductors while edgewise bending,
A coil winding method, wherein a steady plate for suppressing vibration of the coil is disposed above the coil with a gap from the coil in the process of forming the coil.   2. The gap between the coil and the steady plate is gradually reduced by fixing the steady plate in a fixed position in the process of forming the coil. Coil winding method.   2. The gap according to claim 1, wherein the gap between the coil and the steady-state plate is kept substantially constant by gradually moving the steady-state plate in the process of forming the coil. Coil winding method.   The coil winding method according to any one of claims 1 to 3, wherein when the formation of the coil is finished, the upper part of the coil is pressed by the steady plate. A coil winding device having a winding mechanism that forms a coil by spirally stacking flat conductors while edgewise bending,
A coil winding device, characterized in that, in the process of forming the coil by the winding mechanism, an anti-sway plate is disposed above the coil with a gap between the coil and the coil in order to suppress vibration of the coil. .   The said steadying plate is fixed to a fixed position, The clearance gap between the said coil and the said steadying plate is gradually reduced in the process in which the said coil is formed by the said winding mechanism, The Claim 6 characterized by the above-mentioned. Coil winding device.   A moving mechanism for moving the steady-state plate, and in the process in which the coil is formed by the winding mechanism, the steady-state plate is gradually moved by the moving mechanism to form a gap between the coil and the steady-state plate. 6. The coil winding device according to claim 5, wherein the coil winding device is kept substantially constant.   8. The coil according to claim 7, wherein when the formation of the coil by the winding mechanism is finished, the steadying plate is moved by the moving mechanism and the top of the coil is pressed by the steadying plate. 9. Winding device.

Images