WO2021205951A1 - Procédé de fabrication de bobine et dispositif de fabrication de bobine - Google Patents

Procédé de fabrication de bobine et dispositif de fabrication de bobine Download PDF

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Publication number
WO2021205951A1
WO2021205951A1 PCT/JP2021/013762 JP2021013762W WO2021205951A1 WO 2021205951 A1 WO2021205951 A1 WO 2021205951A1 JP 2021013762 W JP2021013762 W JP 2021013762W WO 2021205951 A1 WO2021205951 A1 WO 2021205951A1
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WIPO (PCT)
Prior art keywords
coil
winding frame
coil wire
winding
holding portion
Prior art date
Application number
PCT/JP2021/013762
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English (en)
Japanese (ja)
Inventor
岩井　敏充
行儀 大西
哲也 横川
浩之 安田
長谷川　和哉
辰郎 日野
Original Assignee
三菱電機株式会社
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Application filed by 三菱電機株式会社 filed Critical 三菱電機株式会社
Priority to JP2022514430A priority Critical patent/JP7203280B2/ja
Publication of WO2021205951A1 publication Critical patent/WO2021205951A1/fr

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
    • H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
    • H01F41/04—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing coils
    • H01F41/06—Coil winding
    • H01F41/071—Winding coils of special form
    • H01F41/073—Winding onto elongate formers

Definitions

  • This application relates to a coil manufacturing method and a coil winding device.
  • the coil wires are pressed against the winding frame by a pressing roller in accordance with the rotation of the winding frame.
  • a method of correcting the winding habit of the coil wire and molding it into the shape of the winding frame is a method of correcting the winding habit of the coil wire and molding it into the shape of the winding frame.
  • the coil wire detects the position of the coil wire in the vertical direction of the coil wire and the position in the front-rear direction which is the axial direction of the winding frame so that the path line becomes constant, and controls the position of the winding frame in the vertical direction of the coil wire and the axial direction of the winding frame. ..
  • the amount of change is always detected by the detection mechanism, and it is precise so that the path line of the coil wire becomes constant based on the detected information. Control is needed. Since the coil wire forms a bend having a curvature opposite to that of the winding frame, it is necessary to finely adjust the tension so that the coil wire does not loosen during straightening by the restraint roller and the tension becomes constant.
  • the coil winding device needs to be equipped with a plurality of moving parts that require fine adjustment and a plurality of detection mechanisms that detect the state of the device. Therefore, it is difficult to miniaturize the winding device, and it is difficult to set conditions and create a control program. It took a long time, and development could not be done in a short period of time. In addition, since it is necessary to move the restraint roller in the supply direction of the coil wire while holding the winding frame at the optimum inclination angle, it is not possible to continuously wind the coil wire, and the coil manufacturing time cannot be shortened. was there.
  • the present application discloses a technique for solving the above-mentioned problems, and provides a coil manufacturing method and a coil winding device capable of forming a coil by accurately winding a coil wire around a winding frame having an arbitrary shape. With the goal.
  • the pressing portion changes the relative position of the holding portion in the vertical direction between the plane and the winding frame, sandwiches the coil wire between the plane and the winding frame of the holding portion, and is vertical.
  • the coil wire is held by the plane of the holding portion and the winding frame from the direction, and the rotating portion rotates the winding frame to wind the coil wire around the winding frame.
  • a coil can be formed by accurately winding a coil wire around a winding frame having an arbitrary shape.
  • FIG. It is a block diagram which shows the structure of the coil manufacturing apparatus by Embodiment 1.
  • FIG. It is a front view which shows the structure of the coil winding apparatus of the coil manufacturing apparatus shown in FIG. It is a side view which shows the structure of the coil winding device shown in FIG. It is a front view which shows a part of the structure of the coil winding device shown in FIG. It is a side view which showed the coil manufacturing method of the coil winding apparatus shown in FIG. It is a side view which showed the coil manufacturing method of the coil winding apparatus shown in FIG. It is a front view which showed the coil manufacturing method of the coil winding apparatus shown in FIG. It is a front view which showed the coil manufacturing method of the coil winding apparatus shown in FIG. It is a front view which showed the coil manufacturing method of the coil winding apparatus shown in FIG. It is a front view which showed the coil manufacturing method of the coil winding apparatus shown in FIG.
  • FIG. 1 It is a side view which shows the other coil manufacturing method of the coil winding apparatus shown in FIG. It is a front view which shows a part of another structure of the coil winding apparatus of the coil manufacturing apparatus shown in FIG. It is a side view which shows a part of another structure of the coil winding apparatus of the coil manufacturing apparatus shown in FIG. It is a block diagram which shows another structure of the coil winding apparatus of the coil manufacturing apparatus shown in FIG. It is a front view which shows the structure of the coil winding device by Embodiment 2.
  • FIG. It is a side view which shows the structure of the coil winding device shown in FIG. It is a front view which shows the structure of the coil winding device by Embodiment 3.
  • FIG. 1 It is a front view which shows a part of the structure of the coil winding device shown in FIG. It is a front view which shows a part of other configurations of the coil winding apparatus shown in FIG. It is explanatory drawing which shows a part of the structure of the coil winding device of the comparative example.
  • FIG. It is a side view which shows the coil manufacturing method of another coil winding apparatus by Embodiment 1.
  • FIG. It is a front view which shows the other structure of the coil winding apparatus of the coil manufacturing apparatus shown in FIG. It is a front view which shows the structure of the coil winding device by Embodiment 4.
  • FIG. 1 It is a front view which shows a part of the structure of the coil winding device shown in FIG. It is a front view which shows a part of other configurations of the coil winding apparatus shown in FIG. It is explanatory drawing which shows a part of the structure of the coil
  • FIG. 1 It is a side view which shows the structure of the coil winding device shown in FIG. It is a front view which showed the coil manufacturing method of the coil winding apparatus shown in FIG. It is a front view which shows the structure of the coil winding device according to Embodiment 5. It is a side view which shows the structure of the coil winding device shown in FIG.
  • FIG. 1 is a block diagram showing a configuration of a coil manufacturing apparatus according to a first embodiment.
  • FIG. 2 is a front view showing the configuration of the coil winding device of the coil manufacturing device shown in FIG.
  • FIG. 3 is a side view showing the configuration of the coil winding device shown in FIG.
  • FIG. 4 is a front view showing a part of the configuration of the coil winding device shown in FIG.
  • FIG. 5A is a side view showing a coil manufacturing method of the coil winding device shown in FIG.
  • FIG. 5B is a side view showing a coil manufacturing method of the coil winding device shown in FIG. 6A to 6I are front views showing a coil manufacturing method of the coil winding device shown in FIG.
  • FIG. 7A and 7B are side views showing another coil manufacturing method of the coil winding device shown in FIG.
  • FIG. 8A is a front view showing a part of another configuration of the coil winding device of the coil manufacturing apparatus shown in FIG.
  • FIG. 8B is a side view showing a part of another configuration of the coil winding device of the coil manufacturing apparatus shown in FIG.
  • FIG. 9 is a block diagram showing another configuration of the coil winding device of the coil manufacturing apparatus shown in FIG. 16A and 16B are side views showing a coil manufacturing method of another coil winding device according to the first embodiment.
  • the coil manufacturing device 10 includes a supply device 101, a straightening device 102, a tension adjusting device 103, and a coil winding device 100.
  • the supply device 101 draws out from, for example, a bobbin or the like that accommodates the coil wire 1, and supplies the coil wire 1 to a subsequent process.
  • the straightening device 102 has a vertical straightening section 121 that straightens the curl of the coil wire 1 in the vertical direction, and a feeding direction straightening section 122 that straightens the curl of the coil wire 1 in the feeding direction.
  • the tension adjusting device 103 applies tension to the coil wire 1 and adjusts the tension of the coil wire 1.
  • the coil winding device 100 is an essential part of the first embodiment, and the details will be described below.
  • an aligned winding in which the coil wire 1 is wound in an aligned state
  • a non-aligned winding in which the coil wire 1 is wound in a non-aligned state.
  • the non-aligned winding when the diameter of the coil wire 1 is large and the wire rod is hard, or when the cross-sectional shape of the coil wire 1 is rectangular, a large gap remains between the coil wires 1 and the space factor of the coil increases. Therefore, it is used when the cross-sectional area of the coil wire 1 is relatively small and the wire rod of the coil wire 1 is soft. This time, we will mainly explain with the example of aligned winding, but it is also possible to apply it to non-aligned winding as well.
  • the aligned winding is a method of winding the coil wire 1 on the winding frame 13 in a substantially concentric manner in multiple layers, and the one-layer coil is wound in the axial direction Z of the winding frame 13 (in the axial direction Z, the details are described below.
  • the winding method in which the coil wire 1 is wound concentrically in multiple layers is referred to as a multi-layer winding
  • the winding method in which the one-layer coil wire 1 is wound in multiple rows in the axial direction Z is referred to as multi-row winding.
  • winding frame 13 around which the coil wire 1 is wound can be similarly used as long as the winding frame 13 includes the winding core and the like and the coil wire 1 is wound while rotating. Therefore, in the following description, all of them will be described as the winding frame 13.
  • each direction in the coil winding device 100 is defined as an axial direction Z in the direction of the rotation axis Q of the winding frame 13, and a horizontal direction X in which the coil wire 1 perpendicular to the axial direction Z is inserted.
  • the direction perpendicular to the axial direction Z and the horizontal direction X is shown as the vertical direction Y, and is shown as the rotation direction W of the rotation axis Q, respectively. Therefore, in other parts of the coil winding device 100 as well, each direction will be described with reference to these directions.
  • the insertion direction (horizontal direction X) for inserting the coil wire 1 is a direction along the plane 11A of the holding portion 11 described later.
  • the coil winding device 100 includes a holding portion 11, a rotating portion 14, a pressing portion 15, and a moving portion 16.
  • the holding portion 11 is fixed to the pedestal 200.
  • the holding portion 11 has a plane 11A for holding the coil wire 1 in the horizontal direction X into which the coil wire 1 is inserted.
  • the holding portion 11 has a first guide portion 12 as a guide portion for holding the coil wire 1.
  • the first guide portion 12 is installed on the plane 11A of the holding portion 11, holds the coil wire 1 on the plane 11A of the holding portion 11 so that the vertical direction Y and the axial direction Z are constant, and the coil in the horizontal direction X.
  • the lead-out position of the line 1 is fixed.
  • FIG. 2 shows an example in which the first guide portion 12 is installed on the plane 11A of the holding portion 11, but the present invention is not limited to this, and the first guide portion 12 is placed on the plane 11A of the holding portion 11. It does not have to be installed in. That is, as shown in FIG. 17, the coil wire 1 may be sent out as the first guide portion 12 so that the vertical direction Y and the axial direction Z on the plane 11A of the holding portion 11 are constant.
  • the pedestal 200 may be fixed and installed at different locations.
  • the flat surface 11A of the holding portion 11 is formed larger than the long side portion 13A which is the maximum flat surface portion of the outer shape of the winding frame 13.
  • the rotating portion 14 includes a rotating base portion 114 that fixes the rotation center of the winding frame 13 to the rotating shaft Q, and a motor 21 that rotates the rotating base portion 114 around the rotating shaft Q.
  • the pressing portion 15 moves the rotating shaft Q of the rotating portion 14 in the vertical direction Y, and uses a pneumatic cylinder 22 as power.
  • the pressing portion 15 is operated by the pneumatic cylinder 22 via a linear motion mechanism such as a linear guide or a ball bush, for example. Therefore, the pressing portion 15 can change the relative position of the holding portion 11 in the vertical direction Y between the plane 11A and the winding frame 13.
  • the moving portion 16 moves the rotating portion 14 in the axial direction Z.
  • the moving unit 16 operates with a ball screw, a servomotor, or the like via a linear motion mechanism such as a linear guide or a ball bush, for example. Therefore, the moving portion 16 can change the relative position of the winding frame 13 and the holding portion 11 in the axial direction Z with respect to the plane 11A.
  • the winding frame 13 is provided with a fixing portion 32 for fixing the winding start end 1A of the coil wire 1.
  • the coil wire 1 having a curl by being supplied in a state of being wound around a bobbin or the like is corrected by the straightening device 102, and then the coil wire 1 is passed through the first guide portion 12 on the holding portion 11. 1 is supplied to the coil winding device 100 while holding the 1 on the plane 11A of the holding portion 11 so that the vertical direction Y and the axial direction Z are constant.
  • the coil wire 1 is fed to a predetermined position of the winding frame 13, and the winding start end 1A of the coil wire 1 is fixed by the fixing portion 32 of the winding frame 13.
  • the winding start end 1A is fixed by using the fixing portion 32 at a position shifted to the left side in the axial direction Z on the drawing from the winding position.
  • the rotating shaft Q is rotated by the rotating portion 14 in the rotation direction W, and the coil wire 1 is wound around the winding frame 13.
  • the pressing portion 15 constantly presses the winding frame 13 against the flat surface 11A of the holding portion 11 from the direction Y. Therefore, the winding habit remaining on the coil wire 1 is corrected and the coil wire 1 is wound around the winding frame 13.
  • FIGS. 5 and 6A A specific rotational posture of the winding frame 13 will be shown and described in FIGS. 5 and 6.
  • the long side portion 13A having the maximum flat portion of the outer shape of the winding frame 13 sandwiches and presses the coil wire 1 into the flat surface 11A of the holding portion 11.
  • the flat surface 11A of the holding portion 11 is formed larger than the long side portion 13A of the winding frame 13, the coil wire 1 can be reliably sandwiched and pressed.
  • the winding frame 13 when the winding frame 13 is rotated on the rotation axis Q and the state shown in FIG. 6B is obtained, the winding frame 13 has a long side portion 13A and a short side portion 13B, so that the rotation axis Q is vertical. It cannot rotate at the same position in direction Y. Therefore, the rotation axis Q rises in the vertical direction Y according to the rotation posture of the winding frame 13. Then, in the order of FIG. 6C ⁇ FIG. 6D ⁇ FIG. 6E ⁇ FIG. 6F ⁇ FIG. 6G ⁇ FIG. 6H, the rotation axis Q is rotated and appropriately moved up and down in the vertical direction Y to rotate the winding frame 13 360 degrees and the winding frame 13 The first layer coil wire 1 is wound around.
  • the pressing portion 15 presses the winding frame 13 in the direction Y perpendicular to the plane 11A of the holding portion 11, and the coil wire 1 is pressed by the winding frame 13 in the direction Y perpendicular to the plane 11A of the holding portion 11. Pressed with. Even if the winding frame 13 moves in the vertical direction Y, the coil wire 1 is constantly pressed by the flat surface 11A of the holding portion 11 and the winding frame 13 at a constant pressure, so that the coil wire 1 does not bend due to winding. Therefore, for example, the tension adjusting device 103 of the coil wire 1 can have a simple configuration.
  • the rotation base on which the winding frame 13 is installed is compared with the case where the first layer coil wire 1 shown in FIG. 5A is wound.
  • the rotation axis Q of the portion 114 is moved ascending in the vertical direction Y by the pressing portion 15 for the length T1 of the diameter of the coil wire 1 (the length in the vertical direction Y).
  • the first guide portion 12 has a vertical direction Y between the first guide portion 12 and the winding frame 13 with respect to the vertical direction Y of the coil wire 1 held by the first guide portion 12. Moved away.
  • the winding frame 13 is formed so that the length H1 in the axial direction Z is an integral multiple of the length H2 of the diameter of the coil wire 1. Then, as in the first embodiment, after the coil wire 1 in the first row is wound around the winding frame 13 (FIG. 7A), the rotating portion 14 is rotated by the moving portion 16 in the axial direction Z to have the length of the diameter of the coil wire 1.
  • the coil wire 1 in the second row is moved by H2, sandwiched between the winding frame 13 and the flat surface 11A of the holding portion 11, pressed, and wound around the winding frame 13 in the same manner as in the first embodiment (FIG. 7B).
  • the coil formed in this way becomes a multi-row coil wound in a spiral shape.
  • FIG. 16 an example of another multi-row winding of the first embodiment is shown in FIG. Similar to the case of the above-mentioned multi-row winding, in the case where the coil wire 1 is wound around the winding frame 13 in multiple rows, the winding frame 13 has a length H1 in the axial direction Z and a length H2 of the diameter of the coil wire 1. It is formed by an integral multiple of. Then, as shown in FIG. 16, the plane 11B of the holding portion 11 is formed to have a length formed so that the rotating portion 14 can rotate is smaller than the length H1 in the axial direction Z of the winding frame 13. Since the configuration of the holding portion 11 other than the plane 11B is the same as that of the first embodiment, the description thereof will be omitted as appropriate.
  • the coil wire 1 in the first row is wound around the winding frame 13 (FIG. 16A)
  • the coil wire 1 in the second row is wound on the winding frame 13 and the flat surface 11B of the holding portion 11. It is sandwiched and pressed, and wound around the winding frame 13 in the same manner as in the first embodiment (FIG. 16B).
  • the coil wire 1 wound in the first row is also sandwiched and pressed between the winding frame 13 and the flat surface 11B of the holding portion 11.
  • the gap between the winding frame 13 remaining after winding the first row and the coil wire 1 is 1 when winding the coil wires 1 in the second and subsequent rows around the winding frame 13. Since the coil wire 1 wound in the row is pressed between the winding frame 13 and the holding portion 11 and corrected, a coil in which the winding frame 13 and the coil wire 1 are in close contact with each other can be manufactured.
  • the winding frame 13 is moved in the axial direction Z in accordance with the rotation, the first layer coil wire 1 is wound, and then the winding frame 13 is wound in one layer.
  • the second layer is wound in multiple rows.
  • a coil wound in multiple rows in multiple layers can be manufactured.
  • a coil in which the coil wires 1 are in close contact with each other can be manufactured.
  • a second guide portion 31 is installed to guide the coil wire 1 with respect to the winding frame 13 so that the coil wire 1 does not shift in the axial direction Z.
  • the second guide portion 31 can suppress the unwinding of the coil wire 1 in the axial direction Z.
  • FIG. 8 shows an example in which the second guide portion 31 is installed on the long side portion 13A of the winding frame 13, it may be installed on the short side portion 13B or may be installed over the entire circumference. good.
  • the coil winding device 100 is additionally configured with another device. Specifically, the feed device 110, the terminal molding device 111, the coating stripping device 112, the cutting device 113, and the like.
  • the feeding device 110 automatically feeds the coil wire 1 from the straightening device 102 to the coil winding device 100.
  • the terminal forming device 111 forms the winding start end or winding end of the coil wire 1 to be sent to the coil winding device 100.
  • the coating stripping device 112 strips the coating of the coil wire 1 before or after winding the coil wire 1 around the winding frame 13 by the coil winding device 100.
  • the cutting device 113 cuts the winding end of the coil wire 1 after the coil wire 1 is wound around the winding frame 13. Each of these devices is appropriately installed as needed.
  • the holding portion 11 is fixed, and the pressing portion 15 moves the rotating portion 14 in the vertical direction Y to press the winding frame 13 against the planes 11A and 11B of the holding portion 11.
  • An example is shown, but the present invention is not limited to this, and if the holding portion 11 is not fixed, the planes 11A and 11B of the holding portion 11 relative to the winding frame 13 in the vertical direction Y.
  • the winding frame 13 may be pressed by the planes 11A and 11B of the holding portion 11, or the pressing portion 15 moves the rotating portion 14 in the vertical direction Y and the planes 11A and 11B of the holding portion 11 move in the vertical direction Y. You may move and press the winding frame 13 against the planes 11A and 11B of the holding portion 11.
  • the holding portion 11 is fixed and the moving portion 16 moves the rotating portion 14 in the axial direction Z, but the present invention is not limited to this, and the holding portion 11 is not limited to this. If is not fixed, the moving portion 16 may relatively move the distance Z in the axial direction between the winding frame 13 and the plane 11A of the holding portion 11.
  • a coil manufacturing method in which a coil wire is wound around the winding frame while rotating the winding frame on a rotating shaft.
  • the coil wire is sandwiched between the flat surface of the holding portion and the winding frame.
  • the coil wire is rotated while holding the coil wire between the plane of the holding portion and the winding frame from a direction perpendicular to the plane of the holding portion and the axial direction of the rotating shaft. Wrap around the winding frame, Also, according to the coil winding device, In a coil winding device that winds a coil wire around the winding frame while rotating the winding frame on a rotating shaft.
  • a holding portion having a flat surface for holding the coil wire, A rotating part that rotates the winding frame installed on the rotating shaft, and A pressing portion for moving the relative position of the winding frame and the holding portion with respect to the plane in the plane of the holding portion and the plane of the holding portion in the vertical direction is provided.
  • the pressing portion changes the relative position of the holding portion in the vertical direction between the plane and the winding frame, sandwiches the coil wire between the plane and the winding frame of the holding portion, and is vertical.
  • the coil wire is held by the plane of the holding portion and the winding frame from the direction, and the rotating portion rotates the winding frame to wind the coil wire around the winding frame.
  • the coil wire By sandwiching and holding the coil wire between the flat surface of the holding portion and the winding frame having an arbitrary shape, the coil wire is continuously straightened, so that a coil having excellent winding accuracy can be obtained.
  • the coil wire is always sandwiched and pressed between the winding frame and the flat surface of the holding portion to hold it, the bending of the coil wire is suppressed even if there is no fine tension adjustment, so the tension adjustment is a simple device configuration. Can be.
  • the pressing portion is configured only by changing the relative position of the holding portion in the vertical direction between the plane and the winding frame, complicated movement mechanism and advanced control are not required, which simplifies the equipment. , Compact size and low cost can be realized.
  • a coil manufacturing method in which a coil wire is wound around the winding frame while rotating the winding frame on a rotating shaft.
  • the coil wire is provided with a guide portion for feeding the coil wire to the plane of the holding portion while holding the coil wire constantly in the vertical direction on the plane of the holding portion and in the axial direction of the rotating shaft.
  • the coil wire is sandwiched between the flat surface of the holding portion and the winding frame. From the plane of the holding portion and the vertical direction, the winding frame is rotated while holding the coil wire between the plane of the holding portion and the winding frame, and the coil wire is wound around the winding frame.
  • the guide portion and the winding frame are moved so as to be separated from each other in the vertical direction as the number of layers increases.
  • the coil winding device includes a guide portion that sends the coil wire to the plane of the holding portion while holding the vertical direction and the axial direction of the rotating shaft constant.
  • the guide portion increases the vertical distance between the guide portion and the winding frame each time the number of layers increases. Because it was configured to be separated By sandwiching and holding the coil wire between the flat surface of the holding portion and the winding frame having an arbitrary shape, the coil wire is continuously straightened, so that a coil having excellent winding accuracy can be obtained.
  • the tension adjustment is a simple device configuration. Can be.
  • the pressing portion is configured only by changing the relative position of the holding portion in the vertical direction between the plane and the winding frame, complicated movement mechanism and advanced control are not required, which simplifies the equipment. , Compact size and low cost can be realized.
  • the guide portion can accurately feed the coil wire to the flat surface of the holding portion, and even when the coil wire is wound in multiple layers on the winding frame, the coil wire can be accurately fed to the flat surface of the holding portion. ..
  • the coil wire of the upper layer is wound on the coil wire of the lower layer wound around the winding frame
  • the coil wire of the upper layer is wound. While sandwiching the coil wire in the lower layer and the coil wire in the upper layer between the flat surface of the holding portion and the winding frame, From the vertical direction, the coil wire of the lower layer and the coil wire of the upper layer are pressed by the plane and the winding frame of the holding portion to rotate the winding frame, and the coil wire is attached to the winding frame. Because it wraps around Since the coil wire that has already been wound around the winding frame is also corrected, it is possible to obtain a multi-layer coil with good winding accuracy.
  • the plane of the holding portion is formed larger than the maximum plane portion of the outer shape of the winding frame, Even at the maximum flat surface of the winding frame, the coil wire can be constantly sandwiched and pressed between the winding frame and the flat surface of the holding portion, and a coil with good winding accuracy can be reliably obtained.
  • the moving portion for moving the relative position of the winding frame and the holding portion with respect to the plane in the axial direction is provided. Since the coil wires can be wound in multiple rows around the winding frame, it is possible to obtain a multi-row coil with good winding accuracy.
  • Embodiment 2 a case where a wire rod having an insulating coating coated on the coil wire 1 is used will be described.
  • the coil wire 1 is wound around the winding frame 13 while being sandwiched and pressed by the winding frame 13 and the flat surface 11A of the holding portion 11.
  • the winding frame 13 has a long side portion 13A and a short side portion 13B
  • the winding frame 13 has a long side portion 13A and a short side portion 13B.
  • the force with which the coil wire 1 is rubbed on the flat surface 11A of the holding portion 11 is compared with, for example, the states of FIGS. 6A, 6C, 6E, 6G, and 6I. Then, for example, the states of FIGS. 6B, 6D, 6F, and 6H work more, so that the coating of the coil wire 1 is likely to be damaged.
  • the feed amount of the coil wire 1 differs depending on the rotation angle of the winding frame 13. Further, in the multi-layer winding, the feed amount of the coil wire 1 changes depending on the winding layer.
  • the feed amount of the coil wire 1 fluctuates greatly, if the pressing force between the holding portion 11 and the winding frame 13 is weak, the coil wire 1 slides in the insertion direction (horizontal direction X), resulting in a slight extra length in the coil. When it is generated and the coil wire 1 is wound, or conversely, when it slips in the direction opposite to the insertion direction (horizontal direction X), the coil is tightly wound and wound.
  • the coil wire 1 may be stretched to damage the coating or the winding frame 13 (winding core). Further, even if the coil wire 1 is not damaged, the coil may not be taken out from the winding frame 13. On the other hand, if the pressing force of the winding frame 13 is increased in order to prevent the coil wire 1 from slipping, the coating of the coil wire 1 is likely to be damaged.
  • the winding frame 13 is pressed against the flat surface 11A of the holding portion 11 with a set pressing force so that the coil wire 1 is not damaged, and at the same time, the coil wire 1 is wound. It is desirable that the feed amount is constant so as not to slip between the frame 13 and the flat surface 11A of the holding portion 11.
  • a coil manufacturing method and a coil winding device for carrying out these will be described.
  • FIG. 10 is a front view showing the configuration of the coil winding device according to the second embodiment.
  • FIG. 11 is a side view showing the configuration of the coil winding device shown in FIG.
  • the rotating portion 14 includes a first servomotor 23 that rotates a rotating base portion 114 that fixes the winding frame 13.
  • the first servomotor 23 includes, for example, a rotary encoder as a detection unit 23A for detecting the rotation angle of the winding frame 13.
  • the pressing portion 15 includes a second servomotor 24 capable of controlling the position in the vertical direction Y. It is also conceivable to use a hydraulic cylinder using an incompressible fluid instead of the second servomotor 24. Then, for example, a load cell as a pressing force detecting unit 25 for detecting the pressing force of the pressing unit 15 by the second servomotor 24 in the vertical direction Y, that is, the pressing force of the holding unit 11 of the winding frame 13 against the flat surface 11A Will be installed.
  • the winding frame 13 in the pressing unit 15 is set in advance so that the pressing force detected by the pressing force detecting unit 25 becomes the value of the set pressing force according to the rotational posture of the winding frame 13.
  • the position of the holding portion 11 and the holding portion 11 in the vertical direction Y with respect to the plane 11A is determined.
  • the pressing force detecting unit 25 detects the pressing force of the winding frame 13 against the holding unit 11 at any time. Then, the position of the winding frame 13 in the vertical direction Y is changed so that the detected pressing force becomes the set pressing force, and the relative position of the winding frame 13 and the holding portion 11 in the vertical direction Y with the plane 11A is changed. Is variable, and the pressing force set is applied to the coil wire 1 between the winding frame 13 and the holding portion 11.
  • the detection unit 23A detects the rotational posture of the winding frame 13, and the rotational speed of the first servomotor 23 is changed according to the rotational posture (rotation angle) of the winding frame 13, and the feed rate of the coil wire 1 fluctuates. Adjust so that there is less.
  • a detection unit for detecting the rotational posture of the winding frame is provided.
  • the pressing force is set to a pressing force in which the pressing force for pressing and holding the coil wire between the plane of the holding portion and the winding frame is set according to the rotational posture of the winding frame detected by the detecting portion. Therefore, the relative positions of the winding frame and the holding portion with respect to the plane in the vertical direction are variable. It is possible to prevent the occurrence of defects due to excessive addition in the coil wire.
  • the holding portion is provided with a pressing force detecting unit for detecting the pressing force in the vertical direction between the flat surface and the winding frame.
  • the pressing portion changes the relative position of the winding frame and the holding portion with respect to the plane in the vertical direction by the pressing force set by the pressing force detected by the pressing force detecting unit. It is possible to prevent the occurrence of defects due to excessive addition in the coil wire.
  • a detection unit for detecting the rotational posture of the winding frame. Since the rotating unit changes the rotation speed according to the rotating posture of the winding frame detected by the detecting unit, It is possible to prevent the occurrence of a defect in the shape of the coil due to fluctuations in the feed amount of the coil wire.
  • Embodiment 3 In the second embodiment, an example of indirectly preventing the deformation of the coil shape is shown. In the third embodiment, a case where the deformation of the coil shape is directly prevented will be described.
  • FIG. 12 is a front view showing the configuration of the coil winding device according to the third embodiment.
  • FIG. 13 is a front view for explaining the operation of the additional pressing portion of the coil winding device shown in FIG.
  • FIG. 14 is a front view showing the detailed configuration of the additional pressing portion of the coil winding device shown in FIG.
  • An additional pressing portion 17 for pressing the coil wire 1 against the winding frame 13 is provided.
  • the additional pressing portion 17 is a gap between the coil wire 1 wound around the long side portion 13A and the winding frame 13, or between the coil wires 1. Prevent gaps.
  • the additional pressing portion 17 is formed of, for example, a pneumatic cylinder, moves in the direction of the arrow P, and presses the coil wire 1 against the winding frame 13.
  • a motor or the like may be used to control the pressing of the additional pressing portion 17, so that the position is fixed according to the layer of the coil wire 1.
  • a cam plate 33 is attached to the rotation base portion 114, and the additional pressing portion 17 moves back and forth in the direction of the arrow P by spring pressure according to the rotation angle of the winding frame 13.
  • the coil wire 1 may be configured to be pressed against the winding frame 13. In this case, it can be configured without adding a new actuator such as a pneumatic cylinder or a motor.
  • the position of the additional pressing portion 17 is changed by using an actuator, a spring pressure, or the like in synchronization with the rotation of the winding frame 13.
  • the position of the additional pressing portion 17 is retracted from the winding frame 13 in order to avoid interference with the coil wire 1 when winding the long side portion 13A of the winding frame 13.
  • the coil wire 1 is pressed against the winding frame 13 by the additional pressing portion 17 at the boundary between the long side portion 13A and the short side portion 13B of the winding frame 13, so that the coil wire 1 is further pressed. It is possible to correct the coil, and it is possible to manufacture a coil with even higher accuracy.
  • the winding frame is provided with an additional pressing portion for pressing the coil wire, Further, it is possible to obtain a coil capable of preventing the coil wire from loosening.
  • Embodiment 4 when the coil wire 1 is coated with an insulating coating, the pressing force of the winding frame against the fixing base is applied to the height of the winding frame in the vertical direction Y in order to prevent the coating from being damaged.
  • An example is shown in which the force is not excessively pressed by controlling the coil.
  • an example of a different configuration for preventing damage to the coil coating is shown.
  • FIG. 18 is a front view showing the configuration of the coil winding device according to the fourth embodiment
  • FIG. 19 is a side view showing the configuration of the coil winding device of FIG.
  • the holding portion 40 is movably installed in the horizontal direction X on the horizontal pedestal 42 fixed to the pedestal 200.
  • the holding portion 40 has a plane 40A that holds the coil wire 1 in the horizontal direction X into which the coil wire 1 is inserted.
  • the first guide portion 12 is installed here on the horizontal table 42.
  • the flat surface 40A of the holding portion 40 is configured to be larger than the long side portion 13A (see FIG. 4) which is the maximum flat surface portion of the outer diameter of the winding frame 13.
  • the coil wire 1 is wound around the winding frame 13, and at the same time, the winding frame 13 is constantly pressed against the flat surface 11A of the holding portion 11 by the pressing portion 15 from the direction Y.
  • the long side portion 13A of the winding frame 13 presses the coil wire 1 against the flat surface 40A of the holding portion 40.
  • the winding frame 13 is set so that the pressing force of the coil wire 1 against the holding portion 40 by the winding frame 13 becomes a constant pressure. Lifts the rotating portion 14 in which the is held in the vertical direction Y.
  • the pressing force of the holding portion 40 of the winding frame 13 against the flat surface 40A is strong and the flat surface 40A of the holding portion 40 cannot be moved in the horizontal direction X only by the rotational force of the winding frame 13, an actuator such as a cylinder is used. Then, the plane 40A of the holding portion 40 can be moved in the horizontal direction X.
  • the coil wire 1 wound around the winding frame 13 is wound around the winding frame 13 by making the relative speeds of the rotational movement of the winding frame 13 in the rotational direction W and the movement of the plane 40A of the holding portion 40 the same as the movement of the plane. , Rubbing between the holding portion 40 and the flat surface 40A can be prevented, and damage to the coating of the coil wire 1 can be prevented.
  • the plane 40A of the holding portion 40 moves the plane 40A of the holding portion 40 in the right direction in the horizontal direction X in synchronization with the rotational movement of the winding frame 13 until the rotation angle of the winding frame 13 changes from the state of FIG. 18 to 180 °. Move to X1.
  • the holding portion is used by using a mechanical component such as a spring or an actuator such as a cylinder.
  • the plane 40A of 40 is returned to the initial position (position in FIG. 18).
  • the rotating portion 14 for fixing the winding frame 13 is moved in the vertical direction Y by using an actuator such as a servomotor, and the holding portion 40 is wound when it is returned to the initial position. Damage to the coating can be avoided by slightly lifting the frame 13 in the vertical direction Y and slightly creating a gap between the coil wire 1 and the flat surface 40A of the holding portion 40.
  • the plane 40A of the holding portion 40 is configured to rotate once in a loop shape and return to the original position. It is also possible. With this configuration, it is not necessary to return the holding portion 40 to the initial position depending on the rotation angle of the winding frame 13, the configuration of the holding portion 40 can be simplified, and the winding time can be shortened. Further, even in this case, the flat surface 40A of the holding portion 40 can be moved by using an actuator in synchronization with the rotation of the winding frame 13 so that the coil wire 1 is not rubbed.
  • the coil manufacturing method and the coil winding device of the fourth embodiment configured as described above, it goes without saying that the same effects as those of the above-described embodiments can be obtained.
  • the winding frame is rotated while moving the plane of the holding portion in the horizontal direction on the plane of the holding portion corresponding to the rotation direction of the winding frame.
  • the plane of the holding portion is configured to move in the horizontal direction on the plane of the holding portion corresponding to the rotation direction of the winding frame, Since rubbing between the coil wire wound around the winding frame and the flat surface of the holding portion can be reduced, it is possible to prevent the coating of the coil wire from being damaged.
  • Embodiment 5 shows an example of a different configuration for preventing damage to the coil coating, which is different from the fourth embodiment.
  • 21 is a front view showing the configuration of the coil winding device according to the fifth embodiment
  • FIG. 22 is a side view showing the configuration of the coil winding device shown in FIG. 21.
  • the same parts as those in each of the above embodiments are designated by the same reference numerals, and the description thereof will be omitted.
  • the rotating portion 14 includes a winding frame fixing base 46.
  • the winding frame fixing base 46 has a similar shape that is one size larger than the outer shape of the required winding layer in which the winding frame 13 is fixed and the coil wire 1 is wound around the winding frame 13.
  • Rollers 47 are provided at both ends of the winding frame fixing base 46 on the long side.
  • the roller 47 is arranged on the same axis as the central axis M in the axial direction Z on the short side portion 13B side of the winding frame 13.
  • the roller cradle 48 is installed on the holding portion 11 side of the roller 47 via an actuator 49 whose position can be controlled in the vertical direction Y.
  • the actuator 49 is formed by a hydraulic cylinder capable of controlling the position in the vertical direction Y, a linear motion device in which a ball screw and a servomotor are combined, or the like.
  • the winding frame fixing base 46, the roller 47, the roller pedestal 48, and the actuator 49 have a configuration in which the positional relationship between the flat surface 11A of the holding portion 11 and the winding frame 13 in the vertical direction Y can be changed.
  • the present invention is not limited to these configurations, and even in other configurations, the following operations are the same as long as the positional relationship between the plane 11A of the holding portion 11 and the winding frame 13 in the vertical direction Y can be changed. It can be done in the same way and has the same effect.
  • the position of the winding frame 13 in the vertical direction Y is determined by the roller pedestal 48 with which the rollers 47 attached to the winding frame fixing base 46 for fixing the winding frame 13 abut.
  • the roller cradle 48 controls the position in the vertical direction Y by the actuator 49.
  • the vertical direction Y of the roller cradle 48 is wound.
  • T2> T1 so that the coil wire 1 does not come into contact with the flat surface 11A of the holding portion 11 and the coil wire 1 wound around the frame 13, it is possible to prevent the coating of the coil wire 1 from rubbing.
  • the winding frame 13 is rotated and the coil wire 1 is wound.
  • Changing the position of the winding frame 13 in the vertical direction Y according to the rotation angle is performed in the same manner as in each of the above-described embodiments. Since the outer diameter of the roller 47 attached to the winding frame fixing base 46 is equidistant from the outer diameter of the winding frame 13, the vertical Y position of the roller pedestal 48 remains fixed and is held with the winding frame when the coil is wound. Since the distance of the portion 11 from the flat surface 11A can be made the same, it is possible to prevent the coating of the coil wire 1 from being rubbed even when the coil wire 1 in which the winding frame 13 rotates is wound.
  • the distance between the winding frame 13 and the outer diameter of the wound coil is different between the first layer and the second and subsequent layers, so the vertical Y position of the roller cradle 48 remains fixed. Then, rubbing occurs between the coil wire 1 wound around the winding frame 13 and the flat surface 11A of the holding portion 11. To prevent this, when winding the coil wire 1 on the second layer of the winding frame 13, the roller cradle 48 is lifted by the length T1 of the coil wire 1 to remove the coil wound around the winding frame 13.
  • the distance between the diameter and the plane 11A of the holding portion 11 can be kept the same as that of the first layer. It should be noted that the third and subsequent layers can be performed in the same manner as the second layer.
  • the distance Y in the vertical direction between the outer diameter of the coil wound around the winding frame 13 and the plane 11A of the holding portion 11 at the time of winding can be made the same. Further, by creating a gap between the coil wire 1 wound around the winding frame 13 and the flat surface 11A of the holding portion 11, the winding bulge generated by the winding is caused by the tension of the tension adjusting device 103 shown in FIG. When the coil wire 1 is pulled in the direction opposite to the feed of 1, the gap with the winding frame 13 is eliminated, and the coil wire 1 can be wound around the winding frame 13 without a gap.
  • the distance T2 in the vertical direction Y between the winding frame 13 of the coil wire 1 and the plane 11A of the holding portion 11 is set.
  • T2-T1 ⁇ T1 the winding bulge of the coil wire 1 is corrected and the coil wire is accurately wound without increasing the pressing force of the holding portion 11 of the coil wire 1 wound around the winding frame 13 against the flat surface 11A. 1 can be wound.
  • the winding bulge of the coil wire 1 is small at the long side portion 13A of the winding frame 13 and large at the R-shaped portion of the short side portion 13B, so that the flat surface 11A of the holding portion 11 and the long side portion 13A of the winding frame 13 (FIG. 4).
  • T3 be the distance in the vertical direction Y during winding
  • T4 be the distance between the plane 11A of the holding portion 11 and the short side portion 13B (see FIG. 4) of the winding frame 13 in the vertical direction Y.
  • the coil wire wound around the winding frame 13 by changing the distance in the vertical direction Y between the winding frame 13 and the plane 11A of the holding portion 11 according to the size of the winding bulge due to the winding position of T3 ⁇ T4 and the winding frame 13.
  • the winding bulge of the coil wire 1 can be corrected and the coil wire 1 can be wound more accurately without increasing the pressing force of the holding portion 11 of 1 against the flat surface 11A.
  • the flat surface 11A of the holding portion 11 is fixed and the position of the roller pedestal 48 in the vertical direction Y is adjusted.
  • the roller pedestal 48 is fixed and the holding portion 11 is fixed.
  • the same effect can be obtained by controlling the position of Y in the vertical direction downward.
  • the vertical length of the coil wire is T1
  • T2 Assuming that the vertical distance between the plane of the holding portion and the winding frame is T2,
  • T3 The positional relationship between the plane of the holding portion and the coil wire in the vertical direction is determined. Since the coil wire is wound by setting the positional relationship to be T2-T1 ⁇ T1.
  • the positional relationship between the plane of the holding portion and the winding frame in the vertical direction is The vertical length of the coil wire is T1, Assuming that the vertical distance between the plane of the holding portion and the winding frame is T2, Since it is configured in a positional relationship where T2-T1 ⁇ T1 It is possible to further prevent the holding portion of the coil wire wound by the winding frame from rubbing against the flat surface, and it is possible to prevent the coating of the coil wire from being damaged. Further, since the winding swelling can be corrected, a coil wound with high accuracy can be obtained.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Coil Winding Methods And Apparatuses (AREA)
  • Manufacture Of Motors, Generators (AREA)

Abstract

L'invention concerne un dispositif de fabrication de bobine comprenant : une unité de maintien (11) ayant un plan (11A) destinée à maintenir un fil de bobine (1) ; une unité de rotation (14) destinée à faire tourner une bobine (13) disposée sur un axe de rotation (Q) ; et une unité de pressage (15) destinée à amener les positions relatives de la bobine (13) et du plan (11A) de l'unité de maintien (11) à être déplacées dans une direction verticale (Y) perpendiculaire à la fois au plan (11A) de l'unité de maintien (11) et à une direction axiale (Z) de l'unité de rotation (14). L'unité de pressage (15), tout en amenant les positions relatives du plan (11A) de l'unité de maintien (11) et de la bobine (13) à être modifiées dans la direction verticale (Y) de manière à prendre en sandwich le fil de bobine (1) entre le plan (11A) de l'unité de maintien (11) et la bobine (13), presse le fil de bobine (1) à partir de la direction verticale (Y) au niveau du plan (11A) de l'unité de maintien (11) et de la bobine (13), et l'unité de rotation (14) amène la bobine (13) à tourner pour enrouler le fil de bobine (1) autour de la bobine (13).
PCT/JP2021/013762 2020-04-09 2021-03-31 Procédé de fabrication de bobine et dispositif de fabrication de bobine WO2021205951A1 (fr)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102022207157A1 (de) 2022-07-13 2024-01-18 Volkswagen Aktiengesellschaft Vereinfachte Herstellung von Spulen aus Flachdraht

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09182390A (ja) * 1995-12-27 1997-07-11 Hitachi Ltd コイル線自動巻線装置及び方法
JPH1197273A (ja) * 1997-09-18 1999-04-09 Tdk Corp 平角コイルの巻線装置と平角コイルの製造方法
JP2017500737A (ja) * 2013-11-25 2017-01-05 エプコス アーゲーＥｐｃｏｓ Ａｇ 誘導性要素並びに誘導性要素用線材を巻回するための装置および方法

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09182390A (ja) * 1995-12-27 1997-07-11 Hitachi Ltd コイル線自動巻線装置及び方法
JPH1197273A (ja) * 1997-09-18 1999-04-09 Tdk Corp 平角コイルの巻線装置と平角コイルの製造方法
JP2017500737A (ja) * 2013-11-25 2017-01-05 エプコス アーゲーＥｐｃｏｓ Ａｇ 誘導性要素並びに誘導性要素用線材を巻回するための装置および方法

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102022207157A1 (de) 2022-07-13 2024-01-18 Volkswagen Aktiengesellschaft Vereinfachte Herstellung von Spulen aus Flachdraht

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