JP6946998B2 - Coil transfer device - Google Patents

Description

The present disclosure relates to a coil transfer device that conveys a coil formed by winding a wire rod in a square shape and in a plurality of stages to a transfer destination.

Conventionally, a rectangular coil formed by winding a rectangular wire in a rectangular shape in a plurality of stages is known (see, for example, Patent Document 1). This type of rectangular coil is formed by repeating the bending operation and the feeding operation of the flat wire, and when the winding of the flat wire is completed, it is separated from the flat wire and conveyed to the equipment of the next process.

Japanese Unexamined Patent Publication No. 2016-11190

As described above, when the wound coil is separated from the flat wire, it is necessary to accurately position the coil. However, if a dedicated positioning mechanism for positioning the wound coil is used when disconnecting from the flat wire, the equipment becomes large and the cost increases. Further, when transporting the coil separated from the flat wire, it is preferable to keep the position (posture) of the coil in the transport device constant in order to smoothly deliver the coil to the equipment in the next process.

Therefore, in the present disclosure, when the wound coil is separated from the wire rod, the coil can be positioned on the mounting table and the coil can be transported to the transport destination while keeping the posture of the coil separated from the wire rod constant. The main purpose is to provide a transport device.

The coil transfer device of the present disclosure is a coil transfer device that positions a coil formed by winding a wire rod in a square shape and in a plurality of stages on a mounting table and conveys a coil separated from the wire rod to a transfer destination. In the cavity of the coil, the wire rod on the first side portion of the coil and the wire rod on the second side portion adjacent to the first side portion can be brought into contact with the wire rod, and the positioning wall provided on the pedestal described above can be brought into contact with the wire rod. The first holding member capable of holding the coil together with the portion, the upper support portion capable of supporting the upper surface of the wire rod located at the uppermost stage of the coil, and the uppermost support portion facing the upper support portion at a distance and the most of the coil. A lower support portion capable of supporting the lower surface of the wire rod located in the lower stage, and the wire rod of the second side portion can be brought into contact with the wire rod of the second side portion from the outside of the coil between the upper support portion and the lower support portion. A second holding member including an abutting portion, a first moving mechanism for integrally raising and lowering the first and second holding members with respect to the above-mentioned pedestal, and the second holding member with respect to the first holding member. It includes a second moving mechanism for approaching and separating, and a third moving mechanism for integrally moving the first and second holding members between the above-mentioned pedestal and the transport destination.

When the wound coil is positioned on the mounting table by the coil transfer device of the present disclosure, the first and second holding members are lowered with respect to the coil on the mounting table by the first moving mechanism, and the first The holding member is brought into contact with the wire rod of the first side portion and the wire rod of the second side portion adjacent to the first side portion in the cavity portion of the coil. Next, the upper support portion supports the upper surface of the wire rod located at the uppermost stage of the coil, the lower support portion supports the lower surface of the wire rod located at the lowermost stage of the coil, and the contact portion is the second from the outside of the coil. The second holding member is brought closer to the first holding member by the second moving mechanism so as to come into contact with the wire rod of the side portion. As a result, the wire rod on the first side of the wound coil is held by the first holding member and the positioning wall portion of the mounting table, and the wire rod on the second side portion is held by the first and second holding members. Further, the upper surface and the lower surface of the coil on the second side side are supported by the upper and lower support portions of the second holding member. As a result, the wound coil can be accurately positioned by the coil transfer device, and the coil can be separated from the wire while ensuring the dimensional accuracy of the coil. Then, after the coil is separated from the wire rod, the first and second holding members holding the wire rod on the second side of the coil are separated from the mounting table by the first moving mechanism and mounted by the third moving mechanism. The coil can be delivered to the destination by moving it from the stand to the destination. Therefore, according to the coil transfer device of the present disclosure, when the wound coil is separated from the wire, it is accurately positioned on the mounting table, and the posture of the coil separated from the wire, that is, the first and second coils. It is possible to convey the coil to the transfer destination while keeping the position with respect to the holding member constant, and it is possible to suppress the increase in size and cost of the coil manufacturing equipment due to the installation of the coil positioning mechanism.

Further, the lower support portion of the second holding member faces the upper support portion at a distance and supports the lower surface of the wire rod located at the lowermost stage of the first coil having the first number of stages. A support portion and a second lower support portion that supports the lower surface of a wire rod located at the lowermost stage of a second coil that faces the upper support portion at a distance and has a second stage number different from that of the first stage. The contact portion of the second holding member is a first contact portion capable of contacting the wire rod of the second side portion of the first coil between the first lower support portion and the second lower support portion. And, it is formed so as to be separated from the first holding member by the first contact portion, and can contact the wire rod of the second side portion of the second coil between the upper support portion and the second lower support portion. 2nd contact portion may be included. As a result, the first and second coils having different numbers of stages are accurately positioned on the mounting table by the coil transfer device, and the postures of the first and second coils separated from the wire rod, that is, the first of both coils. The first and second coils can be conveyed to the transfer destination while maintaining a constant position with respect to the second holding member.

It is a schematic block diagram of the coil winding apparatus including the coil transfer apparatus of this disclosure. It is a perspective view which shows the coil formed by the coil winding apparatus of this disclosure. It is a schematic block diagram which shows the coil transfer apparatus of this disclosure. It is sectional drawing which shows the main part of the coil transfer apparatus of this disclosure. It is a schematic block diagram for demonstrating the operation of the coil transfer apparatus of this disclosure. It is a schematic block diagram for demonstrating the operation of the coil transfer apparatus of this disclosure. It is a schematic block diagram for demonstrating the operation of the coil transfer apparatus of this disclosure. It is a schematic block diagram for demonstrating the operation of the coil transfer apparatus of this disclosure.

Next, a mode for carrying out the invention of the present disclosure will be described with reference to the drawings.

FIG. 1 is a schematic configuration diagram showing a coil winding device 1 including the coil transfer device 10 of the present disclosure. The coil winding device 1 shown in the figure repeatedly executes a bending operation and a feeding operation of a flat wire W having a rectangular cross section to form a coil C1 (first coil) as shown in FIG. Is. As shown in the figure, the coil C1 is a centralized winding type rectangular coil formed by winding one flat wire W in two rows and in a plurality of stages (the number of first stages, for example, 10 stages) while bending in the edgewise direction. (Cassette coil). In the present embodiment, the coil C1 has a substantially rectangular shape when the long side portion (first side portion) is viewed from the front, and has a substantially equal pedestal shape when the short side portion (second side portion) is viewed from the front. It is wound so as to exhibit. However, the shape of the coil C1 when the short side portion is viewed from the front may be a rectangle, a square, or the like other than a trapezoid, and when the short side portion is viewed from the front, the flat line W of the long side portion becomes zigzag. They may overlap.

Further, a short lead wire portion (terminal portion) L extends from one end of the coil C1, and a long bus bar portion (crossover wire) B extends from the other end. The coil C1 constitutes, for example, a three-phase AC electric vehicle mounted on an electric vehicle, a hybrid vehicle, or the like, and is fitted into the teeth T of the stator core Sc of the electric vehicle together with, for example, a resin insulator I. Further, the bus bar portion B of the coil C1 is electrically connected (welded) to the lead wire portion L of the other corresponding coil C1 to form U-phase, V-phase and W-phase stator coils.

As shown in FIG. 1, the coil winding device 1 controls the bobbin 2, the feed mechanism 3, the holding mechanism 4, the winding mechanism 5, the cutting mechanism 6, the coil transfer device 10, and the like. Includes device 100. The coil winding device 1 of the present embodiment has both the coil C1 described above and the second coil C2 (see FIG. 8) having a smaller number of stages (second stage number, for example, 6 stages) than the coil C1. It is configured to be formable. Hereinafter, coils C1 and C2 are collectively referred to as "coil C" as appropriate.

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 a flat wire W, a clamp moving mechanism 3b including a motor, a ball screw, and the like for moving the feed clamp 3a in the x-axis direction in FIG. By moving the feed clamp 3a that clamps the flat wire W by the clamp moving mechanism 3b, the flat wire W can be pulled out from the bobbin 2 and the drawn flat wire W can be sent out to the rear stage side. Further, between the bobbin 2 and the feed mechanism 3, a plurality of straightening rollers 3c for straightening the flat wire W drawn from the bobbin 2 are arranged. The holding mechanism 4 includes a holding clamp 4a capable of clamping the flat wire W so that the holding clamp 4a does not move the flat wire W when the flat wire W is not clamped by the feed clamp 3a of the feed mechanism 3. Clamp.

The winding mechanism 5 performs edgewise bending on the flat wire W, and is driven by a bending shaft serving as a fulcrum of the bending and a drive device (not shown) to be centered on the central axis (bending center) of the bending shaft. Includes bending jigs that can be moved along the circumference. The bent shaft includes a columnar shaft portion and an annular flange portion that protrudes radially outward from the upper end portion of the shaft portion and restricts the movement of the flat wire W in the thickness direction (flatwise direction), and is shown in FIG. It is arranged so as to extend in the y-axis direction (vertical direction in FIG. 1). The winding mechanism 5 moves the bending jig around the central axis of the bending shaft 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, thereby bending the central axis. The flat wire W is bent in the edgewise direction. Then, the coil C as described above is formed by repeatedly executing the bending operation of the flat wire W by the winding mechanism 5 and the feeding operation of the flat wire W by the feed mechanism 3. Further, by changing the number of bending operations and feed operations of the flat wire W, it is possible to form the coils C1 and C2 having different numbers of stages.

The cutting mechanism 6 is arranged on the downstream side of the winding mechanism 5 in the feeding direction of the flat wire W (x-axis direction in FIG. 1), and is wound by the winding mechanism 5 on the further downstream side of the cutting mechanism 6. A mounting table 7 for the coil C is installed. As shown in FIG. 3, the mounting table 7 has a substantially U-shaped cross-sectional shape and supports the lower surface of the flat wire W of the long side portion located at the lowermost stage of the coil C. As a result, a space is defined below the coil C mounted on the mounting table 7. Further, a pair of positioning wall portions 8 are installed on the side of the mounting table 7. Each positioning wall portion 8 is inclined from an inclined surface inclined so as to be able to abut on the side surface (outer surface of the flat wire W) on the long side side of the wound coils C1 and C2, and from the upper end of the inclined surface. Includes a flat inner surface that extends upward.

The coil C wound by the winding mechanism 5 is moved onto the mounting table 7 so as to be fitted between the pair of positioning wall portions 8 by the feeding operation of the flat wire W. Further, the wound coil C is positioned with respect to the mounting table 7 by the coil transfer device 10, and is separated from the flat wire W by the cutting mechanism 6 so as to secure the length of the portion to be molded as the bus bar portion B. Is done. The separated coil C is conveyed by the coil transfer device 10 to, for example, a bus bar forming device (not shown) that forms the bus bar portion B along the y-axis direction in FIG.

As shown in FIGS. 1 and 4, the coil transfer device 10 includes a first holding member 11 and a second holding member 12, and is connected to the upper part of the mounting table 7 and the bus bar forming device to which the coil C is transferred. Arranged so that it can be moved between. As shown in FIG. 4, the first holding member 11 includes a base member 110 and an insertion block 111 fixed to the base member 110. The insertion block 111 of the first holding member 11 is formed so as to be inserted into the hollow portions of the coils C1 and C2, and has a long side contact portion 112 and a short side contact portion 113. The long side contact portion 112 is formed so as to be fitted into the cavity portion and tapered so that both side surfaces can come into contact with the inner surface of the flat wire W of the long side portions of the coils C1 and C2 facing each other. (See Fig. 3). Further, the short side contact portion 113 is formed thinner than the long side contact portion 112, and the base member is formed so that its end surface can come into contact with the flat wire W of one short side portion of the coil C. The 110 is arranged offset in the width direction (y-axis direction in FIG. 3) on one side (left side in FIG. 4) of the long side contact portion 112 in the extending direction. However, the short side contact portion 113 may be arranged so as to be able to contact the central portion of the flat line W of the short side portion.

As shown in FIG. 4, the second holding member 12 of the coil transfer device 10 has a substantially U-shaped planar shape, and has an upper support portion 121, a first lower support portion 122a, and a second lower support portion. The 122b, the first contact portion 123a and the second contact portion 123b are included. The upper support portion 121 and the first lower support portion 122a each have a flat inner surface, and the inner surfaces of the upper support portion 121 and the first lower support portion 122a extend in parallel with each other and face each other at a distance slightly larger than the thickness of the coil C1. do. The second lower support portion 122b is formed so as to be closer to the upper support portion 121 than the first lower support portion 122a, and has an inner surface extending parallel to the inner surface of the upper support portion 121. The inner surface of the upper support portion 121 and the inner surface of the second lower support portion 122b face each other at a distance slightly larger than the thickness of the coil C2. Further, the first contact portion 123a has an end surface extending in a direction orthogonal to the inner surface of both the first lower support portion 122a and the second lower support portion 122b. The second contact portion 123b is formed so as to be separated from the tips of the upper support portion 121 and the first and second lower support portions 122a and 122b with respect to the first contact portion 123a, and is formed from the upper support portion 121. It has an end surface extending in a direction orthogonal to the inner surface of both with the second lower support portion 122b.

As a result, the flat wire W of one short side of the coil C1 is positioned at the uppermost stage of the coil C1 on the inner surface of the upper support portion 121 in a state where it is in contact with the first contact portion 123a of the second holding member 12. It is possible to support the upper surface of the flat wire W and to support the lower surface of the flat wire W located at the lowermost stage of the coil C1 on the inner surface of the first lower support portion 122a. Further, the flat wire W of one short side of the coil C2 is located on the inner surface of the upper support portion 121 at the uppermost stage of the coil C2 in a state of being in contact with the second contact portion 123b of the second holding member 12. It is possible to support the upper surface of the flat wire W and to support the lower surface of the flat wire W located at the lowermost stage of the coil C2 on the inner surface of the second lower support portion 122b. That is, the second holding member 12 can support both the coils C1 and C2 having different thicknesses (number of stages) in the thickness direction. Then, in the second holding member 12, the end faces of the first and second contact portions 123a and 123b face each other with a gap from the end faces of the short side contact portions 113 of the first holding member 11, and the base member 110. It is supported by the base member 110 so as to be slidable in the extending direction.

Further, the coil transfer device 10 includes a main moving mechanism (third moving mechanism) 15 for integrally reciprocating the first and second holding members 11 and 12 between the mounting table 7 and the bus bar forming device, and the mounting table 7. An elevating mechanism 16 (first moving mechanism) that integrally raises and lowers the first and second holding members 11 and 12 and a positioning moving mechanism 17 that moves the second holding member 12 closer to and separated from the first holding member 11. (Second moving mechanism) and included.

The main moving mechanism 15 includes a slider that is slidably supported by a guide rail bridged between the upper part of the mounting table 7 and the upper part of the bus bar forming apparatus, and the guide rail (in the y-axis direction in the drawing). ) Is included. The elevating mechanism 16 is supported by the slider of the main moving mechanism 15 and extends downward from the slider. Further, the base member 110 of the first holding member 11 is fixed to the elevating mechanism 16 so that the first holding member 11 extends parallel to the feeding direction (x-axis direction in the drawing) of the flat wire W. As a result, by operating the elevating mechanism 16, the first and second holding members 11 and 12 can be integrally raised and lowered with respect to the mounting table 7.

As shown in FIG. 4, when the slider of the main moving mechanism 15 is stopped above the mounting table 7, the insertion block 111 of the first holding member 11 has the long side contact portion 112 as the short side contact portion. The second holding member 12 faces the cavity of the coil C in a state closer to the cutting mechanism 6 than the 113, and the second holding member 12 has a cutting mechanism that is closer to the cutting mechanism 7 than the coil C on the mounting table 7 in the feeding direction (x-axis direction) of the flat wire W. Separate from 6. Further, by operating the positioning movement mechanism 17, the second holding member 12 can be brought close to and separated from the first holding member 11 along the feeding direction (x-axis direction in the drawing) of the flat wire W. .. The main moving mechanism 15, the elevating mechanism 16, and the positioning moving mechanism 17 are all controlled by the control device 100.

Next, the operation of the coil transfer device 10 will be described. Here, the operation of the coil transfer device 10 will be described by taking the case where the coil C1 is formed by the coil winding device 1 as an example.

In the control device 100 of the coil winding device 1, the first and second holding members 11 and 12 are placed in a standby position defined above the mounting table 7 while the flat wire W is bent by the winding mechanism 5. Stop it. When the formation of the coil C1 by the winding mechanism 5 is completed, the control device 100 controls the feed mechanism 3 so as to feed the flat wire W by a predetermined amount. As a result, the coil C1 wound by the winding mechanism 5 is moved onto the mounting table 7 so as to be fitted between the pair of positioning wall portions 8 by the flat wire W being fed by the feed mechanism 3. ..

When the coil C1 stops on the mounting table 7, the control device 100 lowers the first and second holding members 11 and 12 toward the coil C1 on the mounting table 7 by a predetermined distance. The elevating mechanism 16 of 10 is controlled. As a result, as shown in FIG. 5, the insertion block 111 of the first holding member 11 is inserted into the hollow portion of the coil C1, and both side surfaces of the long side contact portion 112 of the insertion block 111 are respectively. It abuts on the inner surface of the corresponding long side flat wire W. Further, the end surface of the short side contact portion 113 of the insertion block 111 abuts on the inner surface of the flat wire W of the short side portion on the side separated from the cutting mechanism 6 of the coil C1. In the present embodiment, the tip of the insertion block 111 of the first holding member 11 and the first lower support portion 122a of the second holding member 12 are defined below the coil C1 on the mounting table 7. Enter the space.

Next, the control device 100 controls the positioning movement mechanism 17 of the coil transfer device 10 so that the second holding member 12 approaches the first holding member 11 by a predetermined distance. As a result, as shown in FIG. 6, the inner surface of the upper support portion 121 of the second holding member 12 faces the upper surface of the flat wire W located at the uppermost stage of the coil C1 via a slight gap, and the first lower portion The inner surface of the side support portion 122a faces the lower surface of the flat wire W located at the lowermost stage of the coil C1 via a slight gap. Further, the first contact portion 123a comes into contact with the flat wire W of the short side portion on the side separated from the cutting mechanism 6 of the coil C1. In the present embodiment, the first lower support portion 122a of the second holding member 12 overlaps with the short side contact portion 113 of the first holding member 11 when viewed from the y-axis direction in FIG.

As a result, the flat wire W of each long side portion of the wound coil C1 becomes the long side contact portion 112 of the insertion block 111 of the first holding member 11 and the pair of positioning wall portions 8 on the mounting table 7 side. The coil C1 is positioned on the mounting table 7 in the y-axis direction by being held by the coil C1. Further, the flat wire W on the short side of the coil C1 separated from the cutting mechanism 6 is sandwiched between the short side contact portion 113 of the first holding member 11 and the first contact portion 123a of the second holding member 12. By being (held), the coil C1 is positioned on the mounting table 7 in the x-axis direction. Further, the upper surface and the lower surface of the coil C1 on the short side side are supported by the upper support portion 121 and the first lower support portion 122a of the second holding member 12, so that the coil C1 is supported on the mounting table 7 in the z-axis direction. Positioned to.

Further, the control device 100 controls the holding mechanism 4 so that the holding clamp 4a clamps the flat wire W, and then cuts the flat wire W to separate the wound coil C1 from the flat wire W. Controls the cutting mechanism 6. After the coil C1 is separated from the flat wire W by the cutting mechanism 6, the control device 100 holds the state in which the second holding member 12 is close to the first holding member 11, and the first and second holding members 11, The elevating mechanism 16 is controlled so that the 12 is integrally raised from the mounting table 7 to the standby position. As a result, as shown in FIG. 7, the coil C1 (bus bar portion B) sandwiched (held) by the short side contact portion 113 of the first holding member 11 and the first contact portion 123a of the second holding member 12. (Including the portion B'formed as) is taken out from the mounting table 7 and the pair of positioning wall portions 8.

Subsequently, the control device 100 controls the main moving mechanism 15 so as to move the first and second holding members 11 and 12 holding the coil C1 to the bus bar forming device which is the transfer destination. During this time, the coil C1 is sandwiched (held) by the short-side contact portion 113 and the first contact portion 123a, so that the positions of the coils C with respect to the first and second holding members 11 and 12 are substantially constant. Be kept. Therefore, the coil C1 can be smoothly transferred from the first and second holding members 11 and 12 to the coil support base of the bus bar forming apparatus. When the coil C1 is delivered, the control device 100 controls the elevating mechanism 16 of the coil transfer device 10 so as to lower the first and second holding members 11 and 12 toward the coil support base of the bus bar forming device, and at the same time, the first and second holding members 11 and 12 are controlled. 2 The positioning movement mechanism 17 of the coil transfer device 10 is controlled so as to separate the holding member 12 from the first holding member 11. When the delivery of the coil C1 to the bus bar forming device is completed, the control device 100 controls the main moving mechanism 15 so as to return the first and second holding members 11 and 12 to the standby position.

Further, as described above, the second holding member 12 of the coil transfer device 10 is formed so as to be able to support the coil C2 having a thickness (number of stages) smaller (smaller) than the coil C1. Therefore, when the coil C2 is formed by the winding mechanism 5, as shown in FIG. 8, the flat wire W on the short side of the coil C2 on the side separated from the cutting mechanism 6 is shortened by the first holding member 11. By holding the coil C2 by the side contact portion 113 and the second contact portion 123b of the second holding member 12, the coil C2 can be positioned on the mounting table 7 in the x-axis direction. Further, by supporting the upper surface and the lower surface of the coil C2 on the short side side by the upper support portion 121 and the second lower support portion 122b of the second holding member 12, the coil C2 is supported on the mounting table 7 in the z-axis direction. Can be positioned. Also in this case, the flat wire W of each long side portion of the wound coil C2 is a pair of positioning of the long side contact portion 112 of the insertion block 111 of the first holding member 11 and the mounting table 7 side. It is held by the wall portion 8 so that the coil C2 is positioned on the mounting table 7 in the y-axis direction.

Further, after the coil C2 is separated from the flat wire W by the cutting mechanism 6, the first and second holding members 11 and 12 are integrally raised from the mounting table 7 to the standby position by the elevating mechanism 16 to integrally raise the short side. The coil C2 sandwiched (held) by the side contact portion 113 and the second contact portion 123b can be taken out from the mounting table 7 and the pair of positioning wall portions 8. Also in this case, the bus bar forming apparatus which is the transfer destination of the first and second holding members 11 and 12 by the main moving mechanism 15 while keeping the position of the coil C with respect to the first and second holding members 11 and 12 being substantially constant. The coil C2 can be smoothly transferred from the first and second holding members 11 and 12 to the coil support base of the bus bar forming apparatus.

As described above, the coil transfer device 10 lowers the first and second holding members 11 and 12 with respect to the coils C (C1 and C2) on the mounting table 7 by the elevating mechanism 16, and the first holding member 11 Is brought into contact with the flat wire W of the long side portion and the flat wire W of the short side portion adjacent to the long side portion in the cavity portion of the coil C. Further, in the coil transfer device 10, the upper support portion 121 supports the upper surface of the flat wire W located at the uppermost stage of the coil C, and the first or second lower support portions 122a and 122b are located at the lowermost stage of the coil C. The second holding member 12 is supported by the positioning moving mechanism 17 so that the lower surface of the flat wire W is supported and the first or second contact portions 123a and 123b are in contact with the flat wire W on the short side from the outside of the coil C. Is brought closer to the first holding member 11.

As a result, the flat wire W on the long side of the wound coil C is held by the first holding member 11 and the positioning wall portion 8 of the mounting table 7, and the flat wire W on the short side is held by the first holding member 11 and the positioning wall portion 8 of the mounting table 7. It is held by the second holding members 11 and 12, and the upper surface and the lower surface of the coil C on the short side side are supported by the upper support portion 121 and the first or second lower support portion 122a and 122b of the second holding member 12. Will be done. As a result, the wound coil C is accurately positioned by the coil transfer device 10, and the coil C is separated from the flat wire W while ensuring the dimensional accuracy of the coil C, that is, the portion B'formed as the bus bar portion B. It becomes possible. Then, after the coil C is separated from the flat wire W, the first and second holding members 11 and 12 holding the flat wire W on the short side of the coil C are separated from the mounting table 7 by the elevating mechanism 16. At the same time, the main moving mechanism 15 can move the coil C from the mounting table 7 to the bus bar molding device, which is the transfer destination, and transfer the coil C to the bus bar forming device. Therefore, according to the coil transfer device 10, when the wound coil C is separated from the flat wire W, the coil C is accurately positioned on the mounting table 7, and the posture of the coil C separated from the flat wire W, that is, the coil C. It is possible to convey the coil C to the bus bar forming apparatus while keeping the positions of the first and second holding members 11 and 12 substantially constant, and the size of the coil C manufacturing equipment is increased due to the installation of the coil positioning mechanism. And cost increase can be suppressed.

Further, in the coil transfer device 10, the second holding member 12 faces the upper support portion 121 at a distance and supports the lower surface of the flat wire W located at the lowermost stage of the coil C1. And the second lower support portion 122b that supports the lower surface of the flat wire W located at the lowermost stage of the coil C2 that faces the upper support portion 121 at a distance and has a smaller number of stages (smaller thickness) than the coil C1. The first contact portion 123a capable of contacting the flat wire W of the short side portion of the coil C1 between the first lower support portion 122a and the second lower support portion 122b, and the first contact portion 123a. A second contact that is formed so as to be separated from the first holding member 11 and is capable of contacting the flat wire W of the short side portion of the coil C2 between the upper support portion 121 and the second lower support portion 122b. Includes contact portion 123b. As a result, when the coils C1 and C2 having different numbers of stages (thickness) are separated from the flat wire W by the coil transfer device 10, the coils C1 and C2 are accurately positioned on the mounting table 7 and the coils C1 and C2 separated from the flat wire W. It is possible to convey the coils C1 and C2 to the bus bar forming apparatus while keeping the posture, that is, the positions of the coils C1 and C2 with respect to the first and second holding members 11 and 12 substantially constant.

The second holding member 12 of the coil transfer device 10 may be formed so as to be able to support three or more coils C having different thicknesses (number of stages) from each other. Further, the long side contact portion 112 of the first holding member 11 may be formed so that only one side surface of the first holding member 11 abuts on the inner surface of the corresponding long side flat line W. Further, the coil C is not limited to the one formed by winding the flat wire W in a rectangular shape, and may be formed by winding the flat wire W in a square shape. Further, the wire rod forming the coil C may be a wire rod other than the flat wire W, that is, a wire rod having a cross section such as a square shape or a circular shape.

It goes without saying that the invention of the present disclosure is not limited to the above-described embodiment, and various changes can be made within the scope of the extension of the present disclosure. Furthermore, the above-described embodiment is merely a specific embodiment of the invention described in the column of the outline of the invention, and does not limit the elements of the invention described in the column of the outline of the invention.

The invention of the present disclosure is available in the field of coil manufacturing.

1 Coil winding device, 2 Bobbin, 3 Feed mechanism, 3a clamp, 3b clamp movement mechanism, 3c straightening roller, 4 holding mechanism, 4a holding clamp, 5 winding mechanism, 6 cutting mechanism, 7 mounting base, 8 positioning wall 10, Coil transfer device, 11 1st holding member, 110 base member, 111 insertion block, 112 long side contact part, 113 short side contact part, 12 2nd holding member, 121 upper support part, 122a 1 Lower support, 122b 2nd lower support, 123a 1st contact, 123b 2nd contact, 15 Main movement mechanism, 16 Lifting mechanism, 17 Positioning movement mechanism, 100 Control device, C1, C2 coil , W flat wire.

Claims (1)

With a coil formed by winding a wire in a rectangular shape and a plurality of stages to position the coil on the mounting table when disconnected from the wire, the coil transport device for transporting the transport destination of the coil is disconnected from the wire And
It is possible to abut the wire rod on the first side portion of the coil and the wire rod on the second side portion adjacent to the first side portion in the cavity portion of the coil, together with the positioning wall portion provided on the above-mentioned pedestal. A first holding member capable of holding the coil and
An upper support portion capable of supporting the upper surface of the wire rod located at the uppermost stage of the coil, and a lower side capable of supporting the lower surface of the wire rod located at the lowermost stage of the coil while facing the upper support portion at a distance. A second holding member including a support portion and a contact portion between the upper support portion and the lower support portion that can abut the wire rod of the second side portion from the outside of the coil.
A first moving mechanism that integrally raises and lowers the first and second holding members with respect to the above-mentioned stand, and
A second moving mechanism that brings the second holding member closer to and away from the first holding member,
A third moving mechanism that integrally moves the first and second holding members between the above-mentioned stand and the transport destination, and
A coil transfer device comprising.

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