JP2019097256A - Coil winding device - Google Patents

Abstract

To satisfactorily hinder deformation of a coil during processing while accelerating a bending operation and a feed operation when the coil is formed by repeating the bending operation and feed operation for a flat wire.SOLUTION: A coil winding device comprises: a guide member including a first and second guide walls, each of which has an internal surface including a receiving surface for receiving a side face of a coil during a process when a flat wire is bent by a bending operation and also including a guide surface for guiding the coil during a process when the flat wire is fed by a feeding operation, and which are coupled such that their internal surfaces are opposite to each other with a space between them, the guide member being disposed so as to freely rotate around a rotation center extending in parallel to a bending center of the flat wire; a rotary drive device that rotates and drives the guide member; and a control device that controls the rotary drive device such that the guide member rotates in synchronization with the bending operation and feed operation for the flat wire.SELECTED DRAWING: Figure 1

Description

  The present disclosure relates to a coil winding device that repetitively performs a bending operation and a feeding operation of a flat wire to form a coil.

  Conventionally, as a coil winding apparatus that forms a rectangular coil by winding a rectangular wire in multiple steps, a guide that supports the outer surface of the coil being processed while rotating according to the bending operation and feeding operation of the rectangular wire Are known (see, for example, Patent Document 1). The guide of this coil winding device comprises: cylindrical first and second guides disposed symmetrically with respect to the rotational center of the guide; a cylindrical third guide opposed to the first guide at a distance; And 2 guides and a cylindrical fourth guide facing each other at a distance. When the four corners of the coil are formed into the first corner, the second corner, the third corner and the fourth corner in the order formed on the flat wire, the first guide is the first and second corners The second guide portion supports the outer surface of the coil being processed when the third and fourth corners are being formed. As a result, it is possible to suppress the tilting of the coil in the rotational direction during processing, and to prevent plastic deformation of the bent coil.

JP, 2013-247709, A

  However, when the cylindrical guide as described above is used, the distance between the outer side surface and the guide becomes large depending on the position of the coil during processing. Therefore, if the bending operation and the feeding operation are speeded up to shorten the lead time of the coil winding process, the rectangular wire wound in a rectangular shape may be shaken and deformed due to inertia. . In addition, when a plurality of guides are arranged to reduce the distance from the outer surface of the coil being processed in order to suppress deformation of the flat wire, the coil being processed at high speed interferes with the guides There is also a possibility that the bending of the flat wire can not be performed.

  Thus, when forming a coil by repeating the bending operation and the feeding operation of a flat wire, the present disclosure well suppresses deformation of the coil during processing while achieving high-speed bending operation and the feeding operation. The main purpose is

  A coil winding device according to the present disclosure is a coil winding device in which a bending operation of a flat wire and a feeding operation of the flat wire are repeated to form a coil, wherein the processing is performed when the flat wire is bent by the bending operation. The inner surface includes a receiving surface for receiving the side surface of the inner coil and an inner surface including a guiding surface for guiding the coil during processing when the flat wire is fed by the feeding operation, and the inner surfaces face each other at an interval. And a guide member including first and second guide walls connected in such a manner and rotatably disposed about a rotation center extending parallel to the bending center of the rectangular wire, and rotation for rotationally driving the guide member The drive device includes a control device that controls the rotational drive device to rotate the guide member in synchronization with the bending operation of the flat wire and the feeding operation.

  When forming a coil using this coil winding device, the guide member is rotationally driven by the rotational drive device and rotates in synchronization with the bending operation and the feeding operation of the flat wire. When the flat wire is bent by the bending operation, the side surface of the coil being processed is received (supported) by the receiving surface of the first or second guide wall, and the flat wire is fed by the feeding operation. The coil being processed is guided by the guiding surfaces of the first and second guide walls. Thus, by providing the receiving surface and the guiding surface on the inner surfaces of the first and second guide walls of the guide member, the side surface of the coil being bent and the receiving surface of the first guide wall or the second guide wall It is possible to narrow the gap to suppress the swinging of the coil, and to feed the rectangular wire at high speed while guiding the coil during processing which swings along with the feeding operation by the induction surface. As a result, when forming the coil by repeating the bending operation and the feeding operation of the flat wire, it is possible to satisfactorily suppress the deformation of the coil during processing while achieving high speed of the bending operation and the feeding operation. It becomes.

  In addition, the inner surface of the first guide wall and the inner surface of the second guide wall may have the same cross-sectional shape, and the first and second guide walls have the inner surfaces that are the inner surfaces of the guide member. They may be connected to one another so as to be arranged symmetrically with respect to the center of rotation. Thus, by rotating the guide member around the rotation center in synchronization with the bending operation and the feeding operation of the rectangular wire, the guide member can suppress the swinging of the coil during the bending operation and the feeding operation. It becomes possible to guide the coil in process which is rocked with it.

  Furthermore, the coil may be a rectangular coil, and the feeding operation is a long side feeding operation of sending the flat wire by a distance according to the long side of the coil, and a distance according to the short side of the coil. The bending operation may be performed by a long side bending operation for bending the flat wire fed by the long side feeding operation, and the short side feeding operation. And the receiving surface of the first and second guide walls may be bent when the rectangular wire is bent by the short-side bending operation and the rectangular wire may have the long length. A first receiving surface receiving the side surface of the coil being processed when bent by a side bending operation, and adjacent to the first receiving surface at the rotation center side and inclined with respect to the first receiving surface The rectangular wire is the long side And a second receiving surface for receiving said side surface of the coil in the process when bent by the lower machining operation may include, respectively.

  In the coil winding device including the guide member, when the flat wire is bent by the short side bending operation, the side surface of the coil being processed is received by the first receiving surface. Further, when the flat wire is bent by the long side bending operation, the side surface of the coil being processed is received by the first receiving surface and then received by the second receiving surface. Thereby, the area of the inner surface of the first and second guide walls that can be in contact with the side surface of the coil being processed when performing the long side bending operation where the flat wire tends to swing largely is secured sufficiently As a result, deformation of the coil at the time of execution of the long side bending operation can be favorably suppressed.

  The coil may include a lead wire portion extended from one end, and the inner surfaces of the first and second guide walls do not interfere with the lead wire portion when performing the bending operation and the feeding operation. It may be formed as. This makes it possible to well suppress deformation of the lead wire portion during formation of the coil.

  Furthermore, the coil winding device includes a first side edge extending along the inner surface of the first guide wall and a second side edge extending along the inner surface of the second guide wall. And a pressing member rotatably arranged integrally with the guide member between the first guide wall and the second guide wall and movable in the stacking direction of the flat wire, and the pressing member in the stacking direction The control device may control the drive device so that the pressing member moves in the stacking direction while pressing the coil being processed. As a result, since the movement of the coil in the processing direction in the layering direction can be restricted by the pressing member, it is possible to further accelerate the bending operation and the feeding operation.

It is a schematic block diagram of the coil winding device of this indication. 1 is a perspective view of a coil formed by a coil winding device of the present disclosure; It is a schematic diagram which shows the winding mechanism contained in the coil winding apparatus of this indication. It is a schematic block diagram which shows the guide mechanism contained in the coil winding apparatus of this indication. It is a top view which shows the principal part of the guide mechanism contained in the coil winding device of this indication. It is a schematic diagram which shows the principal part of the guide mechanism contained in the coil winding apparatus of this indication. It is a schematic diagram which shows the formation procedure of the coil in the coil winding apparatus of this indication. It is a schematic diagram which shows the formation procedure of the coil in the coil winding apparatus of this indication. It is a schematic diagram which shows the formation procedure of the coil in the coil winding apparatus of this indication. It is a schematic diagram which shows the formation procedure of the coil in the coil winding apparatus of this indication. It is a schematic diagram which shows the formation procedure of the coil in the coil winding apparatus of this indication. It is a schematic diagram which shows the formation procedure of the coil in the coil winding apparatus of this indication. It is a schematic diagram which shows the formation procedure of the coil in the coil winding apparatus of this indication. It is a schematic diagram which shows the formation procedure of the coil in the coil winding apparatus of this indication. It is a schematic diagram which shows the formation procedure of the coil in the coil winding apparatus of this indication. It is a schematic diagram which shows the formation procedure of the coil in the coil winding apparatus of this indication. It is a schematic diagram which shows the formation procedure of the coil in the coil winding apparatus of this indication. It is a schematic diagram which shows the formation procedure of the coil in the coil winding apparatus of this indication. It is a schematic diagram which shows the formation procedure of the coil in the coil winding apparatus of this indication. It is a schematic diagram for demonstrating the design procedure of the inner surface of the 1st and 2nd guide wall of the guide member contained in the coil winding apparatus of this indication. It is a schematic diagram for demonstrating the design procedure of the inner surface of the 1st and 2nd guide wall of a guide member. It is a schematic diagram for demonstrating the design procedure of the inner surface of the 1st and 2nd guide wall of a guide member. It is a schematic diagram for demonstrating the design procedure of the inner surface of the 1st and 2nd guide wall of a guide member. It is a schematic diagram for demonstrating the design procedure of the inner surface of the 1st and 2nd guide wall of a guide member. It is a schematic diagram for demonstrating the design procedure of the inner surface of the 1st and 2nd guide wall of a guide member. It is a schematic diagram for demonstrating the design procedure of the inner surface of the 1st and 2nd guide wall of a guide member. It is a schematic diagram for demonstrating the design procedure of the inner surface of the 1st and 2nd guide wall of a guide member. It is a schematic diagram for demonstrating the design procedure of the inner surface of the 1st and 2nd guide wall of a guide member. It is a schematic diagram for demonstrating the design procedure of the inner surface of the 1st and 2nd guide wall of a guide member. It is a schematic diagram for demonstrating the design procedure of the inner surface of the 1st and 2nd guide wall of a guide member.

  Next, an embodiment of the present disclosure will be described with reference to the drawings.

  FIG. 1 is a schematic configuration view showing a coil winding device 1 of the present disclosure. The coil winding device 1 shown in the figure repeatedly performs the bending operation and the feeding operation of the rectangular wire W having a rectangular cross section to form a coil C as shown in FIG. In the present embodiment, as shown, the coil C is a concentrated winding rectangular coil which is wound while bending one flat wire W in two rows and plural steps (for example, about 6 to 10 steps) in the edgewise direction. (Cassette coil) and has a substantially square truncated pyramidal outer shape. Further, a short lead wire portion (terminal portion) L is extended from one end of the coil C, and a long bus bar portion (crossover wire) B is extended from the other end. The coil C constitutes, for example, a three-phase alternating current motor mounted in an electric car, a hybrid vehicle or the like, and is fitted into the teeth T of the stator core Sc of the motor together with, for example, a resin insulator I. Then, the bus bar portion B of the coil C is electrically connected (welded) to the lead wire portion L of the other corresponding coil C, whereby a U-phase, V-phase and W-phase stator coil is configured.

  As shown in FIG. 1, the coil winding device 1 includes a bobbin 2, a feeding mechanism 3, a holding mechanism 4, a winding mechanism 5, a guide mechanism 10, and a control device 100 that controls these. A flat wire W is wound around the bobbin 2 in the flatwise direction. The feed mechanism 3 includes a feed clamp 3a capable of clamping the flat wire W, a clamp moving mechanism 3b including a motor for moving the feed clamp 3a, a ball screw, and the like. By moving the feed clamp 3a clamping the rectangular wire W by the clamp moving mechanism 3b, the rectangular wire W can be drawn out from the bobbin 2 and the rectangular wire W drawn out can be sent out to the subsequent stage side. Further, between the bobbin 2 and the feeding mechanism 3, a plurality of correction rollers 3c for straightening the flat wire W drawn out from the bobbin 2 are disposed.

  The holding mechanism 4 includes a holding clamp 4a capable of clamping the rectangular wire W, and when the rectangular wire W is not clamped by the feed clamp 3a of the feeding mechanism 3, the rectangular wire W is not moved by the holding clamp 4a. Clamp. The winding mechanism 5 performs edgewise bending on the flat wire W, and as shown in FIG. 3, the bending shaft 5a serving as a fulcrum of bending and a driving device (not shown) drive the bending shaft 5a. And a bending jig 5b movable along a circumference centered on a central axis (bending center) 5ac of The bending shaft 5a includes a cylindrical shaft portion and an annular flange portion (not shown) projecting radially outward from the upper end portion of the shaft portion, and is arranged to extend in the vertical direction in FIG. The bending shaft 5a can restrict the movement of the flat wire W in the thickness direction (flatwise direction) by the flange portion.

  According to the winding mechanism 5, as shown in FIG. 3, the bending jig 5b is fixed to the central axis 5ac of the bending shaft 5a in a state where the movement of the flat wire W in the thickness direction is restricted by the flange portion of the bending shaft 5a. By moving it around, it becomes possible to bend the rectangular wire W in the edgewise direction with the central axis 5ac of the bending shaft 5a as the bending center. Thus, when the flat wire W is bent in the edgewise direction, the coil Cp (the flat wire W to be bent and the flat wire W already wound into a rectangular shape) during processing has a rotation center Wc shown in FIG. It turns around the center. The rotation center Wc is a first tangent to the shaft portion of the bending shaft 5a extending in the feeding direction of the flat wire W (the extending direction of the flat wire W before being bent), and the flat wire W It is an intersection with a second tangent to the shaft of the bending shaft 5a which is orthogonal to the extending direction (feed direction). In this embodiment, a straight line extending parallel to the feeding direction of the rectangular wire W and separated from the rotation center Wc by a predetermined distance based on the width of the coil C (the length in the direction orthogonal to the longitudinal direction). Is defined as the x axis, and the second tangent line passing through the rotation center Wc is defined as the y axis.

  As shown in FIG. 4, the guide mechanism 10 rotationally drives the guide member 11 rotatably disposed above the winding mechanism 5 (the bending shaft 5 a and the bending jig 5 b) in the drawing, and the guide member 11. It includes a rotation drive device 14, a pressing plate (pressing member) 15, and an elevation driving device 16 that raises and lowers the pressing plate 15 with respect to the guide member 11. The guide member 11 includes a first guide plate (first guide wall) 121, a second guide plate (second guide wall) 122, and a connecting member 13 connecting the two, and the x axis and the y axis It is rotatable about the z-axis (rotation center) orthogonal to the x-axis and the y-axis through the intersection point O.

  As shown in FIGS. 5 and 6, the first and second guide plates 121 are plate-like members including inner surfaces 121i and 122i having the same cross-sectional shape. The inner surfaces 121i and 122i are, as shown in FIG. 6, a first receiving surface 12a and a second receiving surface 12b arranged in order from one end to the other end in the longitudinal direction of the first and second guide plates 121 and 122. , A first flank 12c, a second flank 12d, a guiding face 12e, and a third flank 12f. The first receiving surface 12 a is a flat surface formed at one end in the longitudinal direction of the first and second guide plates 121 and 122. The second receiving surface 12b is adjacent to the first receiving surface 12a via a curved surface on the side of the rotation center (z-axis) of the guide member 11 and away from the first receiving surface 12a (the upper or lower in FIG. Flat slope towards the side). The first flank 12c is a concave surface recessed outward and adjacent to the second receiving surface 12b via a curved surface. The second flank 12d is a flat slope which is adjacent to the first flank 12c via a curved surface and goes outward as it is separated from the first flank 12c. The guiding surface 12e is a flat slope which is adjacent to the second flank 12d via a curved surface and is directed inward (downward or upward in FIG. 6) as it is separated from the second flank 12d. The third flank 12f is formed at the other end in the longitudinal direction of the first and second guide plates 121 and 122, and is a flat surface adjacent to the guiding surface 12e via the curved surface and the flat surface via the curved surface. And a flat slope toward the outside as it is adjacent to and separated from the guiding surface 12e.

  Further, one first receiving surface 12a of the first and second guide plates 121 is opposed to the flat surface of the other third flank 12f of the first and second guide plates 121, and both extend in parallel with each other Do. Furthermore, one second receiving surface 12 b of the first and second guide plates 121 faces the other guiding surface 12 e of the first and second guide plates 121. Further, the inner surface 121i, 122i is recessed most outward at the bottom of the curved surface between the second flank 12d and the guiding surface 12e, and from the bottom to the curved surface between the guiding surface 12e and the third flank 12f. Is shorter than the length from the bottom to the curved surface between the first receiving surface 12a and the second receiving surface 12b. Furthermore, the inclination angle (absolute value) of the guiding surface 12e with respect to the widthwise center line (x axis in FIG. 6) extending in the longitudinal direction of the guide member 11 is the second receiving surface 12b inclination angle (absolute value) with respect to the center It is bigger than). Thereby, in the range where the first receiving surface 12 b and the guiding surface 12 e are opposed, the guiding surface 12 e side is wider than the center line.

  The first and second guide plates 121 and 122 are fixed to the connecting member 13 such that the inner surfaces 121i and 122i face each other at an interval and are disposed symmetrically with respect to the z axis which is the rotation center of the guide member 11 It is mutually connected by it. The distance between the inner surface 121i and the inner surface 122i in the guide member 11 is set to be slightly larger than the width (maximum width) of the coil C. Further, the rotational drive device 14 that rotationally drives the guide member 11 includes a motor (not shown) and the like, and is disposed (fixed) above the guide member 11 in FIG. 4. The rotary drive 14 is connected to the guide member 11 via a connecting shaft 14a which extends simultaneously with the z axis. As a result, by operating the motor of the rotational drive device 14, it becomes possible to rotate the guide member 11 in the forward and reverse directions around the z-axis.

  As shown in FIG. 5, the pressing plate 15 has a first side edge 151 extending along the inner surface 121 i of the first guide plate 121 and a second side extending along the inner surface 122 i of the second guide plate 122. Including an edge 152; The pressing plate 15 is supported by the connecting member 13 so as to be integrally rotatable around the guide member 11 and the z axis (rotation center) and to be movable in the z axis direction. Further, the connection ring 15 a is fixed to the pressing plate 15 so as to be located between the guide member 11 and the rotary drive device 14 in the z-axis direction. The lift drive unit 16 for moving the pressing plate 15 up and down includes a moving body 16b having a plurality of roller pairs 16a rotatably holding the connection ring 15a of the pressing plate 15 around the z axis, and the moving body 16b in the z axis direction. It includes a motor for moving, a linear guide, etc. As a result, by operating the motor of the elevation drive unit 16, the pressing plate 15 can be moved up and down along the z-axis even when the guide member 11 is rotating around the z-axis.

  The control device 100 includes a computer having a CPU, a ROM, a RAM, and the like. The control unit 100 includes a control unit of the feed mechanism 3, a control unit of the holding mechanism 4, a control unit of the winding mechanism 5, and a guide mechanism 10 in cooperation with hardware such as a CPU and various programs installed in advance. The control unit etc. of is constructed as a functional block. The control unit of the feeding mechanism 3 sends the flat wire W by a distance corresponding to the length of the long side of the coil C to be formed, and the length of the short side of the coil C to be formed The drive device of the clamp 3a and the clamp moving mechanism 3b are controlled so as to execute the short side feed operation of sending the flat wire W at a predetermined timing according to the distance according to. Further, the control unit of the holding mechanism 4 controls the drive device of the holding clamp 4 a so as to clamp the rectangular wire W at a predetermined timing.

  Furthermore, the control unit of the winding mechanism 5 causes the bending jig 5b to bend the flat wire W sent by the long side feeding operation, and the short bend the flat angle wire W sent by the short side feeding operation. A drive device (not shown) of the bending jig 5b is controlled to execute the side bending operation at a predetermined timing. Furthermore, the control unit of the guide mechanism 10 rotates so that the guide member 11 rotates in synchronization with the long side and short side feeding operations by the feeding mechanism 3 and the long side and short side bending operations by the winding mechanism 5. While controlling the drive device 14, the elevating drive device 16 is controlled so that the pressing plate 15 moves in the z-axis direction (the stacking direction of the flat wire W) while pressing the coil Cp being processed.

  Next, the procedure of forming the coil C in the coil winding device 1 will be described with reference to FIGS. 7 to 19. Here, as shown in FIG. 7, the procedure for forming the coil C by further winding the flat wire W from a state where the flat wire W is wound to a certain extent will be described.

  FIG. 7 shows a flat angle fed by the long side feed operation of the feed mechanism 3 after the flat wire W located on the outer peripheral side of the first stage (the stage positioned on the innermost circumferential side of the motor) is wound. The state before the 1st long-side bending operation by the winding mechanism 5 with respect to the wire W is started is shown. As illustrated, during formation of the coil C, the inner surfaces 121i and 122i of the first and second guide plates 121 and 122 of the guide member 11 are the coil Cp being processed (a flat wire W already wound in a rectangular shape) Opposite the side of the corresponding long side of Moreover, before the start of the first long side bending operation, the long side portion of the coil Cp being processed extends in the x-axis direction, and the bending jig 5b of the winding mechanism 5 is at the initial position shown in FIG. It abuts on the side surface of the flat wire W that will form the long side of the coil Cp being processed.

  When the state shown in FIG. 7 is formed in the winding process of the flat wire W, the control device 100 of the coil winding device 1 stops the feeding operation of the flat wire W by the feeding mechanism 3 and the flat angle by the holding clamp 4a. The holding mechanism 4 is controlled so that the line W is clamped. Next, the control device 100 controls the winding mechanism 5 so that the bending jig 5b of the winding mechanism 5 moves along a circumference centered on the central axis 5ac (bending center) of the bending shaft 5a. The rotary drive 14 of the guide mechanism 10 is controlled so that the guide member 11 rotates clockwise in the figure around the z axis (rotation center) together with the coil Cp being processed. In the present embodiment, the bending jig 5b is, as shown in FIG. 8, a circle centered on the central axis 5ac of the bending shaft 5a by a predetermined angle slightly larger than 90 ° in consideration of the spring back of the flat wire W. It is moved along the circumference and the guide member 11 is also rotated about the z-axis accordingly. When the movement or rotation of the bending jig 5b and the guide member 11 is stopped, the first long side bending operation for bending the flat wire W sent by the long side feeding operation is completed.

  When the bending jig 5b is moved at a high speed during the execution of the first long side bending operation, the coil Cp (the flat wire W already wound in a rectangular shape) tends to swing due to inertia. . On the other hand, in the coil winding device 1 of the present embodiment, the swing of the coil Cp can be suppressed by the guide member 11 that rotates with the coil Cp during bending. That is, as can be seen from FIGS. 7 and 8, mainly in the first half of the first long side bending operation, the first receiving surface 12 a included in the inner surface 121 i of the first guide plate 121 and the coil Cp under processing As the distance between the long side portion and the side surface narrows and the completion of the first long side bending operation approaches, the second receiving surface 12b included in the inner surface 121i of the first guide plate 121 and the side surface of the coil Cp being processed The interval between Thereby, the side surface of the coil Cp being processed is received (supported) by the first and second receiving surfaces 12a and 12b of the first guide plate 121 when the first long side bending operation is performed. It becomes possible to well suppress the swing of the middle coil Cp.

  Further, the inner surface 122i of the second guide plate 122 of the guide member 11 includes a third flank 12f. Therefore, as can be seen from FIG. 8, when performing the first long side bending operation, the guide member around the z axis which is separated (displaced) from the rotation center Wc (see FIG. 3) of the coil Cp under processing Even if 11 rotates, it can suppress that the inner surface 122i of the 2nd guide plate 122 contacts the lead wire part L of the coil Cp in process. Thereby, it becomes possible to satisfactorily suppress the deformation of the lead wire portion L during the formation of the coil C.

  After completion of the first long side bending operation, the control device 100 controls the winding mechanism 5 to return the bending jig 5b to the initial position. Thus, as shown in FIG. 9, the coil Cp being processed is rotated by 90 ° from the state shown in FIG. 7 around the rotation center Wc, ie, the long side extends parallel to the y axis Will be corrected to At this time, the control device 100 controls the rotational drive device 14 of the guide mechanism 10 so that the guide member 11 slightly rotates in the counterclockwise direction in the drawing around the z axis following the coil Cp being processed.

  When the state shown in FIG. 9 is formed, the control device 100 controls the holding mechanism 4 so as to release the clamp of the flat wire W, and according to the length of the short side of the coil C to be formed. The feed mechanism 3 is controlled to send the flat wire W by the distance. As a result, the coil Cp being processed moves along the x axis in accordance with the short side feeding operation of the rectangular wire W by the feeding mechanism 3. Further, the control device 100 guides the guide member 11 so as to rotate around the z axis in the counterclockwise direction in the drawing following the coil Cp during processing which moves according to the short side feeding operation of the feed mechanism 3. The ten rotary drives 14 are controlled.

  Even when the short side feed operation is performed, if the flat wire W is fed at a high speed, the coil Cp being machined tries to swing due to inertia, but in the coil winding device 1, the short side feed operation is performed. Swinging of the coil Cp during the processing can be favorably suppressed. That is, by rotating the guide member 11 around the z axis so as to follow the coil Cp being processed, as shown in FIG. 10, bending with the inner surfaces 121i, 122i of the first and second guide plates 121, 122 It becomes possible to narrow the distance from the side surface of the coil Cp (long side portion) during processing. Thereby, the swinging of the coil Cp during processing can be favorably suppressed.

  Further, the inner surface 122i of the second guide plate 122 of the guide member 11 includes a first flank 12c and a third flank 12f. Therefore, as can be seen from FIG. 10, when the short side feeding operation is performed, the guide member 11 is rotated around the z axis separated (displaced) from the rotation center Wc (see FIG. 3) of the coil Cp under processing. Even in this case, the inner surface 122i of the second guide plate 122 can be prevented from coming into contact with the lead L of the coil Cp and the corner (lower left corner in the drawing) during the processing. This makes it possible to satisfactorily suppress the deformation of the coil Cp during processing. When the short side feeding operation is completed, as shown in FIG. 10, the side surface of the coil Cp (long side portion) on the side of the lead wire portion L during processing is the guiding surface 12e of the second guide plate 122 and the third flank 12f. Received by the curved surface between Furthermore, the bending jig 5b of the winding mechanism 5 abuts on the side surface of the rectangular wire W that will form the short side of the coil Cp being processed at the initial position.

  Subsequently, the control device 100 controls the holding mechanism 4 such that the rectangular wire W is clamped by the holding clamp 4a. Furthermore, the control device 100 controls the winding mechanism 5 so that the bending jig 5b of the winding mechanism 5 moves along a circumference centered on the central axis 5ac of the bending shaft 5a, and the guide member 11 The rotary drive 14 of the guide mechanism 10 is controlled to rotate clockwise in the figure around the z-axis together with the coil Cp being processed. Thus, the first short side bending operation for bending the flat wire W fed by the short side feeding operation is completed. Also in this case, as shown in FIG. 11, the bending jig 5b has a circumference centered on the central axis 5ac of the bending shaft 5a by an angle slightly larger than 90 ° in consideration of the spring back of the rectangular wire W. It is moved along and the guide member 11 is also rotated about the z-axis accordingly.

  Even when the first short-side bending operation is performed, if the bending jig 5b moves at a high speed, the coil Cp being processed tries to rock due to inertia, but also in this case, it rotates together with the coil Cp being bent. The swinging of the coil Cp can be favorably suppressed by the guide member 11. That is, as can be seen from FIGS. 10 and 11, the first receiving surface 12a included in the inner surface 121i of the first guide plate 121 and the coil Cp being processed (long side portion during the execution of the first short side bending operation The distance from the side of) is getting smaller. Thereby, when performing the short-side bending operation, the first receiving surface 12a of the first guide plate 121 receives (supports) the side surface of the coil Cp being processed, and swings the coil Cp during the processing. Can be suppressed well.

  After completion of the first short side bending operation, the control device 100 controls the winding mechanism 5 to return the bending jig 5b to the initial position. Thus, as shown in FIG. 12, the coil Cp being processed is rotated by 90 ° from the state shown in FIG. 10 around the rotation center Wc, ie, the long side extends parallel to the x axis Will be corrected to Also in this case, the control device 100 rotates the guide mechanism 10 so that the guide member 11 slightly rotates in the counterclockwise direction around the z axis following the coil Cp being processed. Control 14

  When the state shown in FIG. 12 is formed, the control device 100 controls the holding mechanism 4 so as to release the clamp of the flat wire W, and according to the length of the long side of the coil C to be formed. The feed mechanism 3 is controlled to send the flat wire W by the distance. Thus, the coil Cp being processed moves along the x-axis in response to the long side feeding operation of the flat wire W by the feeding mechanism 3. Here, in the guide member 11, as shown in FIGS. 12 and 13, the second receiving surface 12b of the first guide plate 121 and the guiding surface 12e of the second guide plate 122 are opposed to each other, and the distance between them is In the x-axis direction, they gradually narrow as they are separated from the rotation center of the guide member 11, ie, the z-axis.

  Thereby, when the long side feed operation is performed, even if the coil Cp being processed is shaken due to inertia by the flat wire W being fed at high speed, the second receiving of the first guide plate 121 which also functions as an induction surface The first receiving surface 12a of the first guide plate 121 and the third flank of the second guide plate 122, in which the distance between the coil Cp which is being swung is narrowed by the surface 12b and the guiding surface 12e of the second guide plate 122. It is possible to smoothly guide between 12f. Furthermore, in a range in which the guide surface 12e of the first guide plate 121 and the second receiving surface 12b of the second guide plate 122 are opposed, the guide surface is more than the center line (x axis in the drawing) of the guide member 11 in the width direction. 12e side is wide. Therefore, even if the coil Cp being processed which is fed by the long side feeding operation swings, the interference between the lead wire portion L and the guiding surface 12e of the first guide plate 121 can be favorably suppressed. As a result, in the coil winding device 1, it is possible to further speed up the long side feeding operation while suppressing deformation of the coil Cp (lead wire portion L) during processing.

  When the rectangular wire W or the coil Cp being processed moves to the position shown in FIG. 13, the control device 100 controls the holding mechanism 4 so that the feeding mechanism 3 is stopped and the rectangular wire W is clamped by the holding clamp 4a. Do. Further, the bending jig 5b of the winding mechanism 5 abuts on the side surface of the rectangular wire W which forms the long side portion of the coil Cp being processed at the initial position. Furthermore, the control device 100 causes the winding mechanism 5 to move the bending jig 5b of the winding mechanism 5 by an angle slightly larger than 90 ° along the circumference centered on the central axis 5ac of the bending shaft 5a. And controls the rotary drive 14 of the guide mechanism 10 so that the guide member 11 rotates clockwise in the figure around the z axis with the coil Cp being processed. Thereby, as shown in FIG. 14, the second long side bending operation for bending the flat wire W sent by the long side feeding operation is completed. Also when performing the second long side bending operation, the first and second receiving surfaces 12a and 12b of the first guide plate 121 receive (support) the side surface of the coil Cp (long side portion) under processing ), It is possible to well suppress the swing of the coil Cp during the processing.

  Further, the inner surface 121i of the first guide plate 121 of the guide member 11 includes the second flank 12d. Therefore, as can be seen from FIG. 14, when performing the second long side bending operation, the guide member around the z axis which is separated (displaced) from the rotation center Wc (see FIG. 3) of the coil Cp under processing Even if 11 rotates, it can suppress that the inner surface 122i of the 2nd guide plate 122 contacts the lead wire part L of the coil Cp in process. Thereby, it becomes possible to satisfactorily suppress the deformation of the lead wire portion L during the formation of the coil C.

  Next, the control device 100 controls the winding mechanism 5 so as to return the bending jig 5b to the initial position. Thereby, as shown in FIG. 15, the coil Cp being processed is rotated by 90 ° around the rotation center Wc from the state shown in FIG. 13, that is, the long side extends parallel to the y axis Will be corrected to Also in this case, the control device 100 controls the rotational drive device 14 of the guide mechanism 10 so that the guide member 11 slightly rotates in the counterclockwise direction around the z axis following the coil Cp being processed. . When the state shown in FIG. 15 is formed, the control device 100 controls the holding mechanism 4 so as to release the clamp of the flat wire W, and according to the length of the short side of the coil C to be formed. The feed mechanism 3 is controlled to execute the short side feed operation of sending the flat wire W by the distance.

  Also in this case, the control device 100 rotates in the counterclockwise direction in the figure around the z axis following the coil Cp during processing which the guide member 11 moves in accordance with the short side feeding operation of the feed mechanism 3. The rotary drive 14 of the guide mechanism 10 is controlled. Thereby, as can be seen from FIG. 16, the distance between the inner surfaces 121i and 122i of the first and second guide plates 121 and 122 and the side surface of the coil Cp (long side portion) during bending is narrowed, and the coil Cp under processing is processed. It is possible to well suppress the swing of the Also in this case, since the first flank 12c is included in the inner surface 122i of the second guide plate 122 of the guide member 11, the inner surface 122i of the second guide plate 122 contacts the corner of the coil Cp being processed Can be suppressed.

  As shown in FIG. 16, when the short side feeding operation is completed, the bending jig 5b of the winding mechanism 5 forms the short side portion of the coil Cp being processed at the initial position, and the side surface of the rectangular wire W The control device 100 controls the holding mechanism 4 so that the rectangular wire W is clamped by the holding clamp 4a. Furthermore, the control device 100 causes the winding mechanism 5 to move the bending jig 5b of the winding mechanism 5 by an angle slightly larger than 90 ° along the circumference centered on the central axis 5ac of the bending shaft 5a. And controls the rotary drive 14 of the guide mechanism 10 so that the guide member 11 rotates clockwise in the figure around the z axis with the coil Cp being processed. Thereby, as shown in FIG. 17, the second short side bending operation for bending the flat wire W sent by the short side feeding operation is completed. Also in this case, the side face of the coil Cp (long side portion) being processed is received (supported) by the first receiving surface 12a of the first guide plate 121, and the oscillation of the coil Cp during the processing is favorably suppressed. It is possible to

  Then, after completion of the second short side bending operation, as shown in FIG. 18, the control device 100 makes the coil Cp being processed into a state in which the long side portion extends in parallel with the x axis, As shown at 19, the feed mechanism 3 is made to execute the long side feed operation. Also in this case, even when the coil Cp being processed is shaken due to inertia by the flat wire W being fed at a high speed when performing the long side feeding operation, as shown in FIGS. The first receiving surface 12 a of the first guide plate 121 in which the distance between the coil Cp during processing being swung is narrowed by the second receiving surface 12 b of the first guide plate 121 and the guiding surface 12 e of the second guide plate 122. And the third flank 12f of the second guide plate 122 can be smoothly guided. Furthermore, in a range in which the second receiving surface 12b of the first guide plate 121 and the guiding surface 12e of the second guide plate 122 face each other, the guiding surface is closer to the guiding surface than the center line (x axis in the drawing) of the guide member 11 in the width direction. 12e side is wide. Therefore, even if the coil Cp being processed which is fed by the long side feeding operation swings, the interference between the lead wire portion L and the guiding surface 12e of the second guide plate 122 can be favorably suppressed. Thereby, in the coil winding device 1, it is possible to further speed up the long side feeding operation while suppressing deformation of the coil Cp (lead wire L) during processing.

  Thereafter, the above-mentioned first long side bending operation, short side feeding operation, first short side bending operation, long side feeding operation, second long side bending operation, short side feeding operation, second short The side bending operation and the long side feeding operation are repeatedly performed. Further, in the coil winding device 1 of the present embodiment, the control device 100 causes the pressing plate 15 to press the coil Cp being processed from above according to the advancing state of the winding of the coil C (z-axis direction (lamination direction Control the lift drive unit 16 so as to ascend. As a result, since the movement of the coil Cp in the processing direction in the stacking direction can be restricted by the pressing plate 15, it is possible to further accelerate the bending operation and the feeding operation. When the winding of the coil C is completed, the wound coil C is separated from the rectangular wire W by a cutting mechanism (not shown) so that the length of the portion to be the bus bar B is secured. It is transported to

  Subsequently, the design procedure of the inner surfaces 121i and 122i of the first and second guide plates 121 and 122 of the guide member 11 will be described with reference to FIGS.

  When designing the inner surfaces 121i and 122i of the first and second guide plates 121 and 122, first, as shown in FIG. 20, when forming the corner of the coil C by the long side bending operation of the flat wire W, A plane P1 is defined which receives the side surface (the side surface on the outermost side, the same applies hereinafter) of the long side of the coil Cp which is rotated about the rotation center Wc so that the long side extends in the y-axis direction Do. Furthermore, as shown in FIG. 21, when forming the corner of the coil C by the short side bending operation of the flat wire W, the long side extends around the rotation axis Wc so as to extend in the x axis direction. A plane P2 is defined which receives the side surface of the long side of the coil Cp being moved.

  As shown in FIG. 21, the plane P2 is a plane orthogonal to the plane P1, and it is impossible to form both of the planes P1 and P2 on the first and second guide plates 121 and 122. For this reason, as shown in FIG. 22, the plane P2 is rotated around the z-axis which is the rotation center of the guide member 11 so that the angle between the plane P1 and the plane P2 is smaller than 90 °. The rotation angle of the plane P2 around the z axis is a plane P1 within a range of about 60% to 70% of the side surface of the coil Cp (long side portion) during processing when performing long side bending operation and short side bending operation. Or P2 is determined to be contactable.

  After rotating the plane P2 about the z axis by a predetermined angle, as shown in FIG. 23, the portion on the side farther from the z axis than the intersection line of the plane P1 with the plane P2 is removed and the plane of the plane P2 is The portion closer to the z-axis than the intersection line with P1 is removed. Furthermore, while defining the remaining portion of the plane P1 (hereinafter simply referred to as "the plane P1") and the plane P1 'located symmetrically with respect to the z axis, the remaining portion of the plane P2 (hereinafter simply referred to as the "plane P2") Define a plane P2 'which is located symmetrically with respect to the z axis. Thereby, the receiving surface which receives the side surface of the coil Cp (long side part) in process in execution of a long side bending operation and a short side bending operation is defined.

  Then, as shown in FIG. 24, the planes P1, P2, P1 'and P2' are integrally rotated counterclockwise in the figure around the z-axis. At this time, the rotation angles of the planes P1, P2, P1 'and P2' are determined in consideration of the maximum feeding amount of the rectangular wire W by the short side feeding operation when the coil C is formed. After the planes P1, P2, P1 'and P2' are integrally rotated, as shown in FIG. 25, a plane P3a 'receiving the side surface of the long side of the coil Cp being moved by the short side feeding operation. Are defined to intersect the plane P1 '. In FIG. 25, the plane P3a 'is a plane extending parallel to the y-axis. Furthermore, a plane P3b 'receiving the side surface of the short side (short side in the figure) of the coil Cp being moved by the short side feeding operation is defined to intersect the plane P1' and the plane P3a Do. In FIG. 25, the plane P3b 'is a plane extending parallel to the x-axis.

  After defining the planes P3a 'and P3b', a portion of the plane P1 not intersecting with the plane P3b ', a portion closer to the plane P2' than a line of the plane P3a 'with the plane P3b', and a plane P3a 'of the plane P3b' The portion farther from the plane P1 'than the line of intersection with is removed. Furthermore, while defining the remaining portion of the plane P3a '(hereinafter referred to simply as "the plane P3a'") and the plane P3a located symmetrically with respect to the z axis, the remaining portion of the plane P3b '(hereinafter referred to simply as the "plane Define a plane P3b located symmetrically with respect to the z-axis and the P3b '. Thus, a flank is defined to avoid interference with the coil Cp (corner) during processing when the short side feed operation is performed.

  Subsequently, assuming long side feed operation, the planes P1, P2, P3a, P3b, P1 'P2', P3a 'and P3b' are integrated so that the planes P2 and P2 'extend in parallel with the x axis. As around z-axis. Then, as shown in FIG. 26, the plane P4 extending along the side of the long side of the coil Cp being moved along the x axis by the long side feeding operation is defined to intersect with the plane P3a. Do. The plane P4 is included in the same plane as the plane P2, and faces the plane P2 'as shown. Furthermore, the plane P4 and a plane P4 'located symmetrically with respect to the z-axis are defined. The plane P4 'is included in the same plane as the plane P2' and faces the plane P2 as shown. Thereby, one of the flanks for avoiding interference with the coil Cp (lead wire L) being processed when performing the long side feed operation is determined. Further, as shown in FIG. 26, in consideration of the maximum width of the coil C, the swing range of the coil Cp during processing at the time of execution of the long side feeding operation, etc., between the plane P2 and the plane P4 ' The spacing and the spacing between the plane P2 'and the plane P4 are adjusted.

  After the planes P4 and P4 'are defined, as shown in FIG. 27, the plane P1 is after completion of the long side bending operation (in the present embodiment, the second long side bending operation shown in FIGS. 13 and 14). The planes P1, P2, P3a, P3b extend along the side surfaces of the lead wire L side of the coil Cp (long side portion) during processing in the state (see FIG. 15) before the start of the short side feeding operation. , P4, P1'P2 ', P3a', P3b 'and P4' are integrally rotated about the z-axis. Next, a plane P5a extending along the side surface of the lead L of the coil Cp being processed and a plane P5b extending along the end face of the lead L of the coil Cp being processed are each a plane P3a Specify to intersect with. In FIG. 27, the plane P5a extends parallel to the y-axis, and the plane P5b extends parallel to the x-axis. Further, the plane P5a defines a plane P5a 'located symmetrically with respect to the z-axis, and the plane P5b defines a plane P5b' located symmetrically with respect to the z-axis. Thereby, a part of the flank surface for avoiding interference with the lead wire L of the coil Cp being processed when performing the long side bending operation (second long side bending operation) is determined.

  Furthermore, as shown in FIG. 28, after completion of the long side bending operation (in the present embodiment, the first long side bending operation shown in FIGS. 7 and 8), the lead wire portion L of the coil Cp being processed Is defined near the plane P4 ', the plane P6' extending along the side of the lead L of the coil Cp being processed is defined to intersect with the plane P4 '. Further, it is defined that the plane P5 located symmetrically with respect to the plane P6 'and the z axis intersects with the plane P4. Thereby, the flank surface for avoiding interference with the lead wire L of the coil Cp being processed when performing the long side bending operation (first long side bending operation) is further defined.

  Further, as shown in FIG. 29, assuming the long side feeding operation again, a plane P7 extending from the intersection line of the plane P3a and the plane P4 to the intersection line of the plane P5a and the plane P5b and facing the plane P1 ' , And from the line of intersection of the plane P3a 'and the plane P4' to the line of intersection of the plane P5a 'and the plane P5b' to define a plane P7 'opposite to the plane P1. As shown, the distance between the plane P7 and the plane P1 'gradually narrows in the x-axis direction as it is separated from the rotation center of the guide member 11, ie, the z-axis in the figure, and the distance between the plane P7' and the plane P1 is In the x-axis direction in the drawing, the distance between the center of rotation of the guide member 11, ie, the z-axis gradually narrows. Furthermore, in the range in which the plane P7 and the plane P1 'face each other, the plane P7 side becomes wider than the x axis in FIG. 29, and in the range where the plane P7' and the plane P1 face each other, the plane P7 than the x axis in FIG. The 'side becomes wider.

  After the planes P1, P1'-P7, P7 'are defined through the above-described procedure, the first and second shown in FIG. The inner surfaces 121i and 122i of the guide plates 121 and 122 can be obtained. That is, as shown in FIG. 30, the first receiving surface 12a of the inner surface 121i is formed by the plane P2, and the first receiving surface 12a 'of the inner surface 122i is formed by the plane P2'. In addition, the second receiving surface 12b of the inner surface 121i is formed by the plane P1, and the first receiving surface 12b 'of the inner surface 122i is formed by the plane P1'. Furthermore, the first flank 12c of the inner surface 121i is formed by the planes P3a and P3b (and the curved surface between them), and the first flank 12c of the inner surface 122i is the plane P3a 'and P3b' (and the curved surface between them) It is formed by The second flank 12d of the inner surface 121i is formed by the plane P5a, and the second flank 12d of the inner surface 122i is formed by the plane P5a '. Furthermore, the guiding surface 12e of the inner surface 121i is formed by the plane P7, and the guiding surface 12e of the inner surface 122i is formed by the plane P7 '. The third flank 12f of the inner surface 121i is formed by planes P4 and P6 (and the curved surface between them), and the third flank 12f of the inner surface 122i is formed by the planes P4 'and P6' (and the curved surface between them) It is formed.

  As described above, when the coil C is formed using the coil winding device 1 of the present disclosure, the guide member 11 is rotationally driven by the rotational drive device 14 to perform bending operation and feeding operation of the flat wire W. Synchronize and rotate. Then, when the flat wire W is bent by the bending operation, the coil Cp being processed by at least one of the first and second receiving surfaces 12 a and 12 b of the first and second guide plates 121 and 122 (long side The side of the part is received (supported). Further, when the flat wire W is fed by the feeding operation, the coil Cp being processed is induced by the second receiving surface 12 b and the guiding surface 12 e of the first and second guide plates 121 and 122. As described above, by providing the first and second receiving surfaces 12a and 12b and the guiding surface 12e on the inner surfaces 121i and 122i of the first and second guide plates 121 and 122 of the guide member 11, the coil Cp in bending is formed. The distance between the side surface of the first guide plate 121 and the first and second receiving surfaces 12a and 12b of the first guide plate 121 and the second guide plate 122 is narrowed to suppress the swinging of the coil Cp and swings along with the feeding operation. The rectangular wire W can be sent at high speed while the coil Cp being processed is guided by the second receiving surface 12 b and the guiding surface 12 e. As a result, when forming the coil by repeating the bending operation and the feeding operation of the rectangular wire W, while suppressing the deformation of the coil Cp during processing while achieving the speeding up of the bending operation and the feeding operation Is possible.

  Further, the inner surface 121i of the first guide plate 121 and the inner surface 122i of the second guide plate 122 have the same cross-sectional shape, and the first and second guide plates 121 and 122 have the inner surfaces 121i and 122i as guide members. They are connected to one another so as to be arranged symmetrically with respect to 11 rotation centers (z-axis). Thus, by rotating the guide member 11 in synchronization with the bending operation and the feeding operation of the rectangular wire W, the guide member 11 suppresses the swinging of the coil Cp during bending, and along with the feeding operation. Thus, it becomes possible to induce the coil Cp during processing that is oscillating.

  Furthermore, in the feeding operation of the feeding mechanism 3 of the coil winding device 1, a long side feeding operation of feeding the flat wire W by a distance according to the long side of the coil C to be formed, and a short length of the coil C to be formed And a short side feed operation of feeding the flat wire W by a distance corresponding to the side. Further, in the bending operation of the winding mechanism 5 of the coil winding device 1, the long side bending operation for bending the flat wire W fed by the long side feeding operation and the flat wire W sent by the short side feeding operation And short side bending operations. Then, when the flat wire W is bent by the short-side bending operation, the side surface of the coil Cp being processed is received by the first receiving surface 12 a (only) of the first guide plate 121. Further, when the flat wire W is bent by the long side bending operation, the side surface of the coil Cp being processed is received by the first receiving surface 12 a of the first guide plate 121 and then received by the second receiving surface. . Thereby, when performing the long-side bending operation in which the flat wire W tends to swing largely, the inner surfaces 121i and 122i of the first and second guide plates 121 and 22 which can contact the side surface of the coil Cp being processed The area can be sufficiently secured, and the deformation of the coil Cp at the time of performing the long side bending operation can be favorably suppressed.

  In addition, the coil C of the above embodiment includes the lead wire portion L extended from one end, and the inner surfaces 121i and 122i of the first and second guide plates 121 and 122 perform the bending operation and the feeding operation. It is formed so as not to interfere with the lead wire portion L at that time. That is, the first, second and third flanks 12c, 12d, 12f of the inner surface 121i, 122i and the guiding surface 12e are formed so as not to contact the lead wire portion of the coil Cp being processed. Thereby, it becomes possible to satisfactorily suppress the deformation of the lead wire portion L during the formation of the coil C.

  Furthermore, the coil winding device 1 is disposed between the first guide plate 121 and the second guide plate 122 so as to be rotatable integrally with the guide member 11 and movable in the stacking direction (z-axis direction) of the flat wire W. And a lift drive unit 16 for moving the press plate 15 in the stacking direction. Then, the control device 100 controls the elevation driving device 16 so that the pressing plate 15 moves in the stacking direction of the flat wire W while pressing the coil Cp being processed from above. As a result, since the movement of the coil Cp in the processing direction in the stacking direction can be restricted by the pressing plate 15, it is possible to further accelerate the bending operation and the feeding operation. In addition, the pressing plate 15 has a first side edge 151 extending along the inner surface 121i of the first guide plate 121 and a second side edge 152 extending along the inner surface 122i of the second guide plate 122. Including. Thus, the rectangular wire W can be prevented from entering the gap between the first guide plates 121 and 122 and the pressing plate 15, and the formation of the coil C by the coil winding device 1 can be smoothly advanced.

  The invention of the present disclosure is not limited to the above embodiment, and it goes without saying that various modifications can be made within the scope of the present disclosure. Furthermore, the above-described embodiment is merely a specific form of the invention described in the section of the summary of the invention, and does not limit the elements of the invention described in the section of the summary of the invention.

  The invention of the present disclosure can be used in the field of coil production.

  1 coil winding device, 2 bobbin, 3 feeding mechanism, 3a clamp, 3b clamp moving mechanism, 3c correction roller, 4 holding mechanism, 4a holding clamp, 5 winding mechanism, 5a bending shaft, 5ac central axis, 5b bending jig, DESCRIPTION OF SYMBOLS 10 guide mechanism, 11 guide member, 121 1st guide plate, 122 2nd guide plate, 121i, 122i inner surface, 12a 1st receiving surface, 12b 2nd receiving surface, 12c 1st flank, 12d 2nd flank, 12e Guide surface 12f third flank surface 13 connection member 14 rotation drive device 14a connection shaft 15 holding plate 15a connection ring 151 first side edge 152 second side edge 16 lift drive 16b Mobile unit, 100 controller, P1, P1 ', P2, P2', P3a, P3a ', P3b, P b ', P4, P4', P5a, P5a ', P5b, P5b', P6, P6, P7, P7 plane.

Claims (1)

In a coil winding device which forms a coil by repeating a bending operation of a flat wire and a feeding operation of the flat wire,
A receiving surface for receiving the side surface of the coil being processed when the flat wire is bent by the bending operation, and an inner surface including a guiding surface for guiding the coil during the processing when the flat wire is fed by the feeding operation Each of the first and second guide walls includes a first and a second guide wall which are connected so as to face each other with the inner surfaces spaced apart, and disposed rotatably around a rotation center extending parallel to the bending center of the flat wire. A guide member to be
A rotational drive device that rotationally drives the guide member;
A control device that controls the rotational drive device to rotate the guide member in synchronization with the bending operation of the rectangular wire and the feeding operation;
Coil winding apparatus comprising:

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