JP2019110630A - Coil conveying device - Google Patents

Abstract

To provide a coil conveying device capable of conveying a coil to a conveyance destination while suppressing enlargement in size and increase in cost of a facility, and constantly maintaining a posture of a wound coil.SOLUTION: A coil holding member in a coil conveying device comprises: first and second inclined planes that are opposed to an interval where each of lower edge parts is longer than a width of a placement table, and shorter than a maximum length of a first side part of a coil, and are separated to each other toward an upper edge part side from a lower edge part side; a first projecting surface adjacent to one end of at least one of the first and second inclined planes; and a second projecting surface adjacent to the other end of at least one of the first and second inclined planes. A movement mechanism moves the coil holding member from a lower side of a coil placement surface to an upper side in such a manner that the placement table goes through between the first and second inclined planes.SELECTED DRAWING: Figure 3

Description

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

  Conventionally, as a positioning jig of a coil when forming a bus bar portion on a part of an electric wire forming a coil, a plurality of main bodies and a plurality of members formed on the upper part of the main body so that reference surfaces and pressing surfaces are alternately arranged. U.S. Pat. No. 6,097,014 discloses a wall including a wall portion and a coil mounting portion formed between a reference surface and a pressing surface. In this positioning jig, the distance between the reference surface forming the coil mounting portion and the pressing surface is the surface of the pressing surface side of the first electric wire contacting the reference surface and the distance of the second electric wire contacting the pressing surface. A plurality of coil mounting portions are formed on the main body portion so as to be in contact with the surface on the reference surface side. According to the positioning jig, in forming the bus bar portion of the coil, it is possible to position a plurality of types of coils having different axial lengths.

JP, 2016-146685, A

  Here, in order to smoothly transfer the coil transported from the winding device of the coil to the forming device of the bus bar portion to the positioning device as described above, it is necessary to keep the position (posture) of the coil in the transporting device constant. There is. However, if a dedicated positioning mechanism having a plurality of drive sources is used to position the coil with respect to the transport device, the size and cost of the facility increase.

  Therefore, the present disclosure has a main object to provide a coil transport device capable of transporting a coil to a transport destination while keeping the posture of a wound coil constant while suppressing the upsizing of a facility and the cost increase. Do.

  The coil transport device according to the present disclosure includes a coil formed by winding a wire in a square shape and in multiple steps such that the length of a pair of first side portions facing each other becomes longer as the number of steps increases. Coil conveying device for conveying from the mounting table to the transfer destination, and the lower edge portions face each other at a short interval shorter than the width of the mounting table and shorter than the maximum length of the first side portion The first and second inclined surfaces which are inclined so as to be separated from each other from the lower edge side toward the upper edge side, and one end of at least one of the first and second inclined surfaces and the lower The lower edge portion adjacent to the other end of at least one of the first and second inclined surfaces and the first projecting surface projecting toward the opposite first or second inclined surface without exceeding the edge portion Above the first side of the other side without A coil holding member including a second projecting surface projecting toward the second inclined surface, and the first and second inclined surfaces correspond to a pair of opposing second sides of the coil on the mounting table A moving mechanism for supporting the coil holding member so as to extend along one side and moving the coil holding member between the mounting table and the transport destination, the first and second inclined surfaces And a moving mechanism for moving the coil holding member from the lower side to the upper side of the coil mounting surface of the mounting table so that the mounting table passes through the space.

  When the coil is transported from the mounting table of the winding device to the transfer destination by the coil transfer device of the present disclosure, the mounting table is between the first and second inclined surfaces with the coil mounted on the mounting table. The coil holding member is moved upward from the lower side of the coil mounting surface of the mounting table by the moving mechanism so as to pass through. With the relative movement between the coil holding member and the mounting table, the wire forming one side of the second side of the coil is supported by the first inclined surface, and the other side of the second side of the coil is formed. The wire rod is supported by the second inclined surface. Then, since the lower edges of the first and second inclined surfaces face each other with an interval shorter than the maximum length of the first side of the coil, the mounting table is completely between the first and second inclined surfaces. When passing through, the coil is held by the coil holding member without falling off between the first and second inclined surfaces. Furthermore, the movement of the coil in the extending direction of the second side with respect to the coil holding member is restricted by the first and second projecting surfaces. Thus, the coil can be easily positioned with respect to the coil holding member without using a dedicated positioning mechanism, and the coil can be moved while keeping the position of the coil relative to the coil holding member constant. As a result, while suppressing upsizing and cost increase of the coil manufacturing equipment, it becomes possible to transport the coil to the transport destination while keeping the posture of the wound coil constant.

  Further, the transfer destination may include a second mounting table, and the lower edges of the first and second inclined surfaces face each other at an interval longer than the width of the second mounting table. The moving mechanism may move the coil holding member holding the coil such that the second mounting table passes between the first and second inclined surfaces, and the coil mounting member of the second mounting table It may be moved from the upper side to the lower side of the surface. This makes it possible to smoothly transfer the coil to the second mounting table of the transfer destination.

  Further, in the moving mechanism, a first lower stop position where the holding member is positioned lower than the coil mounting surface of the mounting table, and the holding member is larger than the coil mounting surface of the mounting table. The coil holding member is raised and lowered between the first upper stop position located on the upper side, and the second upper stop position where the holding member is located above the coil mounting surface of the second mounting table A first moving mechanism for moving the coil holding member up and down between a second lower stop position where the holding member is positioned lower than the coil mounting surface of the second mounting table; And a second moving mechanism for moving the coil holding member from the upper stop position to the second upper stop position and moving the coil holding member from the second lower stop position to the first lower stop position. May be.

  The lower edges of the first and second inclined surfaces may face each other at an interval shorter than the shortest length of the first side of the coil. Thus, the coil held by the coil holding member can be prevented from projecting downward from the lower edge of the first and second inclined surfaces, so the upper stop position of the coil holding member can be suppressed low to make the coil manufacturing equipment Can be suppressed.

It is a schematic block diagram of the coil winding device containing the coil conveyance 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 perspective view showing a coil conveyance device of this indication. It is a perspective view showing the important section of the coil conveyance device of this indication. It is a perspective view showing the important section of the coil conveyance device of this indication. It is a schematic diagram which shows the principal part of the coil conveyance apparatus of this indication. It is a perspective view for explaining operation of a coil transportation device of this indication. It is a schematic diagram for demonstrating the operation | movement of the coil conveyance apparatus of this indication. It is a perspective view for explaining operation of a coil transportation device of this indication. It is a perspective view for explaining operation of a coil transportation device of this indication. It is a schematic diagram for demonstrating the operation | movement of the coil conveyance apparatus of this indication. It is a schematic diagram which shows the other moving mechanism applicable to the coil conveyance apparatus of this indication.

  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 including a coil transfer device 10 of the present disclosure. The coil winding device 1 shown in the figure repeatedly performs bending operation and feeding operation of the flat wire W having a rectangular cross section to form a coil C1 (first coil) as shown in FIG. It is. As shown, the coil C1 is a concentrated winding rectangular coil formed by winding one flat wire W in two rows and in multiple steps (the first number of steps, for example, 10 steps) while bending in the edgewise direction. (Cassette coil). As shown, a short lead wire portion (terminal portion) L is extended from one end of the coil C1, and a long bus bar portion (crossover wire) B is extended from the other end. .

  The coil C1 constitutes, for example, a three-phase alternating current motor mounted in an electric car, a hybrid vehicle or the like, and is assembled together with a resin insulator I to a plurality of teeth T of a stator core Sc of the motor. Furthermore, the bus bar portion B of the coil C1 is electrically connected (welded) to the lead wire portion L of the corresponding other coil C1, whereby a U-phase, V-phase and W-phase stator coil is configured. In the present embodiment, the coil C1 has a substantially equilateral trapezoidal shape when the short side portion (first side portion) is viewed from the front, and a substantially rectangular shape when the long side portion (second side) is viewed from the front The coil C1 is wound so as to exhibit a shape, and the length of the short side of the coil C1 becomes longer (as the number of stages increases) from the inner peripheral side to the outer peripheral side in the radial direction of the stator core Sc. That is, the flat wire W forming one long side of the coil C1 overlaps along the corresponding one of a pair of inclined surfaces inclined in a symmetrical (reverse direction) with respect to the center line at the same inclination angle (absolute value) The flat wire W forming the other long side of the coil C1 overlaps along the other of the pair of inclined surfaces.

  As shown in FIG. 1, the coil winding device 1 controls the bobbin 2, the feeding mechanism 3, the holding mechanism 4, the winding mechanism 5, the cutting mechanism 6, and the coil conveying device 10, and controls them. And an apparatus 100. The coil winding device 1 according to the present embodiment includes both the above-described coil C1 and a second coil C2 (see FIG. 11) having a smaller number of stages (second stage number, for example, six stages) than the coil C1. It is configured to be formable. Hereinafter, the coils C1 and C2 will be collectively referred to as "coil C" as appropriate. In the present embodiment, the lengths of the long sides (including the corner portions on both sides) and the shortest lengths of the short sides (including the corner portions on both sides) of the coils C1 and C2 are determined to be the same.

  As illustrated, the 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, and a clamp moving mechanism 3b including a motor for moving the feed clamp 3a in the x-axis direction in FIG. 1 and a ball screw. 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 is driven by a bending shaft serving as a fulcrum of bending and a drive device (not shown) to center the central axis (bending center) of the bending shaft. And a bending jig movable along the circumference. The bending shaft includes a cylindrical shaft portion and an annular flange portion which protrudes radially outward from the upper end portion of the shaft portion to restrict movement of the flat wire W in the thickness direction (flatwise direction), as shown in FIG. It is arranged 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 while 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. As a result, the flat wire W is bent in the edgewise direction. Then, the bending operation of the flat wire W by the winding mechanism 5 and the feeding operation of the flat wire W by the feeding mechanism 3 are repeatedly performed to form the coil C1 as described above. Further, by changing the number of bending operations and feeding operations of the flat wire W, it becomes possible to form a coil C2 having a different number of steps from the coil C1.

  The cutting mechanism 6 is disposed on the downstream side of the winding mechanism 5 in the feeding direction of the flat wire W (in the x-axis direction in FIG. 1), and is wound by the winding mechanism 5 on the further downstream side of the cutting mechanism 6 The mounting base 7 of the coil C is installed. The mounting table 7 has a flat coil mounting surface 7s and a pair of side surfaces, as shown in FIG. 3, and supports the bottom surface of the coil C, that is, the surface of the flat wire W located at the lowermost stage of the coil C. . The coil C wound by the winding mechanism 5 is moved on the coil mounting surface 7s by the feeding operation of the flat wire W so that the short side extends in the width direction of the mounting table 7. Furthermore, the coil C wound is cut by the cutting mechanism 6 so that the length of the portion B ′ formed as the bus bar portion B is secured in a state where the rectangular wire W is clamped by the holding mechanism 4 or a clamp not shown. It is separated from the flat wire W.

  The coil C separated from the flat wire W is mounted on the mounting table 8 of the bus bar forming apparatus for forming the bus bar portion B along the x-axis direction in FIG. 3 by, for example, the coil transfer device 10 (second mounting table, see FIG. 3) It is transported to In the present embodiment, the mounting table 8 of the bus bar forming device has the same width as the mounting table 7 of the coil winding device 1. Further, the mounting table 8 includes a flat coil mounting surface 8s for supporting the bottom surface of the coil C, a pair of side surfaces, and a positioning portion (not shown) for positioning the coil C.

  As shown in FIGS. 1 and 3, the coil transfer device 10 includes a coil holding member 11 including first and second support members 111 and 112 which are connected to face each other via a connecting member (not shown), and And a moving mechanism 12 for moving the coil holding member 11. As shown in FIGS. 4 and 5, the first support member 111 of the coil holding member 11 is formed of a relatively thick plate in a substantially square pole shape, and extends in the longitudinal direction of the first support member 111. And a projecting surface (first projecting surface) 111b formed adjacent to a substantially rectangular first inclined surface 111a and one end (an end on the near side in FIG. 4) in the longitudinal direction of the first inclined surface 111a. And a projecting surface (second projecting surface) 111 c formed to be adjacent to the other end (end on the back side in FIG. 4) in the longitudinal direction of the first inclined surface 111 a.

  The first inclined surface 111a is a flat inclined surface that is inclined so as to be closer to the back surface orthogonal to the flat bottom surface of the first support member 111 from the lower edge 111e toward the upper edge 111f. The inclination angle of the first inclined surface 111a with respect to the back surface is determined to be substantially the same as the inclination angle of the plane extending along the flat wire W forming one long side of the coil C1 with respect to the thickness direction of the coil C1. . Further, the longitudinal length of the first inclined surface 111a is set to be substantially the same as the length of the portion excluding the corner portions on both sides of the long side portion of the coil C1.

  The protruding surface 111 b is adjacent to one end in the longitudinal direction of the first inclined surface 111 a and extends from the bottom surface of the first support member 111 to near the central portion in the height direction. The protruding surface 111b is separated from the back surface more than the first inclined surface 111a without exceeding a plane extending parallel to the back surface of the first support member 111 through the lower edge 111e of the first inclined surface 111a. It is a concave surface that protrudes as described above, and is formed so as to be able to abut on the outer surface of the flat wire W that forms a corner portion close to the lead wire portion L of the coil C1. Further, in the present embodiment, in the vicinity of the protruding surface 111b, a flank 111d for suppressing interference with the lead wire portion L of the coil C1 continues to the protruding surface 111b and extends to the end of the first support member 111. It is formed to reach.

  The protruding surface 111 c is adjacent to the other end of the first inclined surface 111 a in the longitudinal direction and extends from the bottom surface to the top surface of the first support member 111. The protruding surface 111c is separated from the back surface more than the first inclined surface 111a without going beyond a plane extending parallel to the back surface of the first support member 111 through the lower edge 111e of the first inclined surface 111a. It is a concave surface that protrudes as described above, and is formed so as to be able to abut on the outer surface of the flat wire W that forms a corner portion located on the opposite side of the lead wire portion L of the coil C1. The first support member 111 may have a height greater than the thickness of the coil C1, or may have a height smaller than the thickness of the coil C1.

  As shown in FIGS. 4 and 5, the second support member 112 is formed of a relatively thick plate member in a substantially square pole shape having the same height as the first support member 111, and the second support member A projecting surface formed adjacent to the substantially rectangular second inclined surface 112a extending in the longitudinal direction of 112 and the other end (end on the back side in FIG. 5) in the longitudinal direction of the second inclined surface 112a And (second projecting surface) 112c. The second inclined surface 112a is a flat inclined surface which is inclined so as to be closer to the back surface orthogonal to the flat bottom surface of the second support member 112 from the lower edge 112e toward the upper edge 112f. The inclination angle of the second inclined surface 112a with respect to the back surface is set to be substantially the same as the inclination angle of the plane extending along the flat wire W forming the other long side of the coil C1 with respect to the thickness direction of the coil C1. . Further, in the present embodiment, one end of the second inclined surface 112 a (the end on the near side in FIG. 5) reaches one end of the second support member 112. In the second support member 112, a projecting surface (first projecting surface) may be formed adjacent to one end (end on the near side in FIG. 5) in the longitudinal direction of the second inclined surface 112a. In this case, the protruding surface 111b of the first support member 111 may be omitted.

  The protruding surface 112c extends from the bottom surface to the top surface of the second support member 112 adjacent to the other end of the second inclined surface 112a in the longitudinal direction. The protruding surface 112c is separated from the back surface more than the second inclined surface 112a without going beyond a plane extending parallel to the back surface of the second support member 112 through the lower edge 112e of the second inclined surface 112a. It is a concave surface that protrudes as described above, and is formed so as to be able to abut on the outer surface of the flat wire W that forms a corner portion located on the opposite side to the bus bar portion B of the coil C1.

  The moving mechanism 12 for moving the coil holding member 11 as described above includes an elevating mechanism (first moving mechanism) 14 for raising and lowering the coil holding member 11 along the z-axis in FIGS. 1 and 3 and the elevating mechanism 14. And a horizontal moving mechanism (second moving mechanism) 15 for moving along the x axis in FIGS. 1 and 3. The moving mechanism 12, that is, the lifting mechanism 14 and the horizontal moving mechanism 15 are all controlled by the control device 100.

  The raising and lowering mechanism 14 includes a drive unit 14D including a motor (not shown) that rotates two ball screws 14B and two ball screws 14B in the same and forward and reverse directions. Each ball screw 14B of the lifting mechanism 14 is screwed into a screw hole formed in the corresponding first or second support member 111,112. Thereby, the coil holding member 11 is supported by the drive unit 14D, and by rotating each ball screw 14B, the coil holding member 11 can be moved up and down relative to the drive unit 14D. The drive unit 14D may be configured to move the coil holding member 11 up and down with a single ball screw 14B.

  When the coil holding member 11 is supported by the drive unit 14D, as shown in FIG. 6, the lower edge 111e of the first inclined surface 111a of the first support member 111 and the second inclined surface 112a of the second support member 112. The lower edge 112e is longer than the width dt of the mounting tables 7 and 8, and the shortest length ds of the short side of the coil C1 (a flat wire forming one long side located at the lowermost stage of the coil C1 The distance from the outer side surface of W to the outer side surface of the flat wire W forming the other long side portion is opposite to each other at a shorter distance. In addition, the first inclined surface 111a and the second inclined surface 112a are separated from each other as going from the lower edge 111e, 112e side to the upper edge 111f, 112f side symmetrically with respect to the center line in the width direction of the coil holding member 11. As opposed. Furthermore, the protruding surface 111b of the first support member 111 protrudes toward the second inclined surface 112a of the second support member 112 so as not to exceed the lower edge 111e, and the protruding surface 111c of the first support member 111 and the second support The protruding surfaces 112c of the member 112 protrude toward the first or second inclined surfaces 111a and 112a so as not to exceed the corresponding lower edges 111e and 112e, respectively.

  The horizontal movement mechanism 15 has one ball screw 15B arranged to extend along the x-axis in FIG. 1 and FIG. 3, a motor (not shown) for rotating the ball screw 15B in forward and reverse directions, etc. The drive unit 15D includes a nut bracket 15N and the like, which are screwed together with the ball screw 15B and fixed to the drive unit 14D of the lifting mechanism 14. The control unit 15D of the horizontal movement mechanism 15 is a control device to reciprocate the drive unit 14D of the elevation mechanism 14 between the upper side of the mounting table 7 of the coil winding device 1 and the upper side of the mounting table 8 of the bus bar forming device. It is controlled by 100.

  The driving unit 14D of the lifting mechanism 14 stopped above the mounting table 7 of the coil winding apparatus 1 has the first and second inclined surfaces 111a and 112a and the projecting surfaces 111b, 111c and 112c above the coil mounting surface 7s. A first lower stop position (see FIG. 7), in which the first and second inclined surfaces 111a and 112a and the projecting surfaces 111b, 111c and 112c are lower than the coil mounting surface 7s. It is controlled by the control device 100 so as to raise and lower the coil holding member 11 between (see FIG. 3). In the first upper stop position, the coil holding member 11 is disposed between the first inclined surface 111 a of the first support member 111 and the second inclined surface 112 a of the second support member 112 as viewed in the z-axis direction. The mounting table 7 faces the mounting table 7 in a state where the mounting table 7 is positioned. Further, as described above, the distance between the lower edge 111e of the first inclined surface 111a and the lower edge 112e of the second inclined surface 112a is set longer than the width dt of the mounting table 7. Therefore, when the coil holding member 11 is lowered from the first upper stop position by the lifting mechanism 14 when the coil C does not exist on the mounting table 7, the mounting table 7 has the first and second inclined surfaces 111a and 112a. The coil holding member 11 can be lowered to the first lower stop position while passing through the space between them.

  In the driving unit 14D of the lifting mechanism 14 stopped above the mounting table 8 of the bus bar forming apparatus, the first and second inclined surfaces 111a, 112a and the projecting surfaces 111b, 111c, 112c are upward from the coil mounting surface 8s. A second lower stop position (see FIG. 9) in which the second upper stop position (see FIG. 9) and the first and second inclined surfaces 111a and 112a and the projecting surfaces 111b, 111c and 112c are lower than the coil mounting surface 8s. It is controlled by the control device 100 so as to raise and lower the coil holding member 11 between (see FIG. 10). In the second upper stop position, the coil holding member 11 places the bus bar forming device between the first inclined surface 111 a of the first support member 111 and the second inclined surface 112 a of the second support member 112 as viewed from the z-axis direction. The mounting table 8 faces the mounting table 8 in a state where the mounting table 8 is positioned. Further, as described above, the distance between the lower edge 111e of the first inclined surface 111a and the lower edge 112e of the second inclined surface 112a is set longer than the width dt of the mounting table 8. Therefore, when the coil holding member 11 is lowered from the second upper stop position by the lifting and lowering mechanism 14, the coil holding member 11 is moved to the first position while passing through the space between the first and second inclined surfaces 111a and 112a. It can be lowered to the lower stop position.

  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.

  When the flat wire W is bent by the winding mechanism 5 of the coil winding device 1, the coil holding member 11 mounts the first and second inclined surfaces 111a and 112a and the projecting surfaces 111b, 111c and 112c on the coil. It stands by at the first lower stop position (see FIG. 3) located below the surface 7s. When the formation of the coil C1 by the winding mechanism 5 is completed, the control device 100 controls the feeding mechanism 3 so as to feed the rectangular wire W by a predetermined amount. Thus, the coil C1 wound by the winding mechanism 5 is moved onto the coil mounting surface 7s of the mounting table 7 by the feeding of the flat wire W by the feeding mechanism 3. When the coil C1 is stopped on the mounting table 7, as shown in FIG. 3, the control device 100 clamps the wound coil C1 with the flat wire W clamped by the holding mechanism 4 or another clamp (not shown). The cutting mechanism 6 is operated so as to be separated from the flat wire W.

  When coil C1 is disconnected from flat wire W, as shown in FIG. 7, control device 100 drives elevating mechanism 14 to raise coil holding member 11 from the first lower stop position to the first upper stop position. Control unit 14D. When the coil holding member 11 ascends from the first lower stop position in a state where the coil C1 is mounted on the mounting table 7, as shown in FIG. It passes between the first inclined surface 111 a and the like and the second inclined surface 112 a and the like of the second support member 112. With such relative movement between the coil holding member 11 and the mounting table 7, the first and second inclined surfaces 111 a and 112 a correspond to the pair of opposing long sides of the coil C 1 on the mounting table 7. A flat wire W extending along one side and forming one of the long sides of the coil C1 is supported by the first inclined surface 111a, and a flat wire W forming the other of the long sides of the coil C1 is 2 supported by the inclined surface 112a. Furthermore, the flat wire W which forms the corner portion of the coil C1 is supported by the projecting surfaces 111b, 111c, and 112c.

  When the mounting table 7 passes completely between the first and second inclined surfaces 111a and 112a etc., lower edges 111e and 112e of the first and second inclined surfaces 111a and 112a are the short sides of the coil C1. Since the coil C1 does not fall off between the first and second inclined surfaces 111a and 112a because they face each other at a short distance shorter than the shortest length ds, the coil C1 does not drop from the lower edge portions 111e and 112e. Are held by the coil holding member 11 without protruding into the Further, the movement of the coil C1 in the extending direction of the long side portion with respect to the coil holding member 11 is restricted by the respective projecting surfaces 111b, 111c, 112c. Thus, the coil C1 can be easily positioned with respect to the coil holding member 11 without using a dedicated positioning mechanism.

  When the coil holding member 11 is raised to the first upper stop position by the lifting mechanism 14, the control device 100 moves the coil holding member 11 from the first upper stop position to the second upper stop position, as shown in FIG. The drive unit 15D of the horizontal movement mechanism 15 is controlled so as to During this time, it is possible to transport the coil C1 from the first upper stop position to the second upper stop position while keeping the position of the coil C1 relative to the coil holding member 11 constant. When the coil holding member 11 stops at the second upper stop position, the control device 100 lifts and lowers the coil holding member 11 from the second upper stop position to the second lower stop position, as shown in FIG. It controls 14 drive units 14D.

  When the coil holding member 11 holding the coil C1 descends from the second upper stop position, as can be seen from FIG. 8, the coil mounting surface 8s of the mounting table 8 of the bus bar forming apparatus is the bottom of the coil C1, ie, the coil The coil C1 and the mounting table 8 are in contact with the first inclined surface 111a of the first support member 111 and the second inclined surface 112a of the second support member 112 in contact with the surface of the flat wire W located at the lowermost step of C1. I will go through it. With the relative movement between the coil holding member 11 and the mounting table 8 as described above, the first and second inclined surfaces 111a and 112a gradually separate from the flat rectangular wire W formed by the long side portion of the coil C1. The protruding surfaces 111b, 111c and 112c are also gradually separated from the corner portion of the coil C1.

  When the mounting table 7 completely passes between the first and second inclined surfaces 111a and 112a and so on, the coil C1 is delivered from the coil holding member 11 to the mounting table 8. That is, in the coil transfer device 10, the coil holding member 11 holding the coil C1 is moved from the upper side to the lower side of the coil mounting surface 8s so that the mounting table 8 passes between the first and second inclined surfaces 111a, 112a, etc. By moving, the coil C <b> 1 can be smoothly delivered to the mounting table 8 so as to be positioned by a positioning unit (not shown). When delivery of the coil C1 to the mounting table 8 (bus bar forming device) is completed, the control device 100 causes the coil holding member 11 to move from the second lower stop position to the first lower stop position, as shown by a broken line in FIG. The drive unit 15D of the horizontal movement mechanism 15 is controlled to move up to the end.

  As described above, the coil transport device 10 is formed by winding the rectangular wire W in a square shape and in multiple steps so that the length of the pair of short sides facing each other becomes longer as the number of steps increases. The coil C1 is conveyed from the mounting table 7 of the coil winding apparatus 1 to the mounting table 8 of the bus bar forming apparatus which is the transfer destination, and the space between the coil holding member 11 and the coil holding member 11 is between the mounting tables 7 and 8 And the moving mechanism 12 (lifting mechanism 14 and horizontal moving mechanism 15) to be moved. Further, in the coil holding member 11, the lower edge portions 111e and 112e are opposed to each other at an interval longer than the width of the mounting table 7 and shorter than the shortest length ds of the short side portion, and the lower edge portions 111e and 112e side The first and second inclined surfaces 111a and 112a inclined so as to be separated from each other toward the upper edge portions 111f and 112f, and one end of the first inclined surface 111a and adjacent to the lower edge portion 111e A protruding surface (first protruding surface) 111b protruding toward the second inclined surface 112a, and a protruding surface adjacent to the other end of the second inclined surface 112a and protruding toward the first inclined surface 111a without exceeding the lower edge 112e And (second projecting surface) 111c. Further, the moving mechanism 12 (lifting mechanism 14) moves the coil holding member 11 upward from the lower side of the coil mounting surface 7s so that the mounting table 7 passes between the first and second inclined surfaces 111a, 112a, etc. Let

  Thereby, the coil C1 can be easily positioned with respect to the coil holding member 11 without using a dedicated positioning mechanism, and the coil C1 can be moved while keeping the position of the coil C1 relative to the coil holding member 11 constant. . As a result, while suppressing the upsizing and cost increase of the coil manufacturing equipment, it becomes possible to transport the coil C1 to the bus bar forming device while keeping the posture of the wound coil C1 constant. Furthermore, the moving mechanism 12 (lifting mechanism 14) of the coil transport device 10 mounts the coil holding member 11 holding the coil C1 so that the mounting table 8 passes between the first and second inclined surfaces 111a, 112a, etc. Move from the upper side to the lower side of the mounting surface 8s. Thus, the coil C1 can be smoothly transferred to the mounting table 8 of the bus bar forming device.

  Further, as shown in FIG. 11, the coil holding member 11 of the coil transport device 10 can also hold the coil C2 having a smaller thickness (number of stages) than the coil C1. Thereby, the coil C2 is easily positioned with respect to the coil holding member 11 without using a dedicated positioning mechanism, and the coil C2 is held at the first upper stop position while the position of the coil C2 with respect to the coil holding member 11 is kept constant. It is possible to convey the sheet to the second upper stop position and to smoothly transfer the sheet to the mounting table 8 of the bus bar forming apparatus.

  Further, the lower edge portions 111e and 112e of the first and second inclined surfaces 111a and 112a are opposed to each other at an interval shorter than the shortest length ds of the short side portion of the coil C1, so that they are held by the coil holding member 11. The coil C1 may not project downward from the lower edge portions 111e and 112e of the first and second inclined surfaces 111a and 112a. As a result, it is possible to suppress the first and second upper stop positions of the coil holding member 11 to be low, and to suppress the enlargement of the coil manufacturing facility. However, the lower edges 111e and 112e of the first and second inclined surfaces 111a and 112a are the maximum length dl of the short sides of the coil C1 (a flat wire forming one long side located at the top of the coil C1) If the length from the outer side surface of W to the outer side surface of the flat wire W forming the other long side is opposite to each other with an interval shorter than that shown in FIG. The coil C1 does not fall off between the first and second inclined surfaces 111a and 112a. Therefore, the distance between the lower edges 111e and 112e of the first and second inclined surfaces 111a and 112a is within the range shorter than the maximum length dl of the short side of the coil C1 according to the thickness of the coil C1 etc. It can be set to

  In addition, the moving mechanism 12 of the coil transfer device 10 is configured to set the coil holding member 11 between the first lower stop position and the first upper stop position and between the second upper stop position and the second lower stop position. Horizontal movement for moving the coil holding member 11 from the first upper stop position to the second upper stop position and moving the coil holding member 11 from the second lower stop position to the first lower stop position Although the mechanism 15 is included, the configuration of the movement mechanism for moving the coil holding member 11 is not limited to this. That is, the moving mechanism 12 of the coil transport device 10 may be replaced by a moving mechanism 12B as shown in FIG. The moving mechanism 12B moves the coil holding member 11 along a track extending in an elliptical shape (or a perfect circular shape) as illustrated. Also by the moving mechanism 12B, the coil holding member 11 is moved between the mounting bases 7 and 8 and the coil holding member 11 is moved from the lower side to the upper side of the coil mounting surface 7s and the upper side to the lower side of the coil mounting surface 8s It becomes possible to move.

  Furthermore, in the above embodiment, the first and second support members 111 and 112 are connected to each other via a connecting member (not shown) so as not to interfere with the mounting bases 7 and 8, but the present invention is not limited thereto. That is, the first and second support members 111 and 112 may be integrally formed with each other so as not to interfere with the mounting tables 7 and 8. Further, the coil C1 is not limited to 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. Furthermore, the wire forming the coils C1 and C2 may be a wire other than the flat wire W, that is, a wire having a cross section such as a square shape or a circular shape.

  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, 6 cutting mechanism, 7, 8 mounting table, 7s, 8s coil mounting surface, 10 coil transport device, 11 coil holding member, 12, 12B moving mechanism, 14 lifting mechanism (first moving mechanism), 14B ball screw, 14D drive unit, 15 horizontal moving mechanism (second moving mechanism) , 15B ball screw, 15D drive unit, 15N nut bracket, 100 control device, 111 first support member, 111a first inclined surface, 111b, 111c, 112c projecting surface, 111d flank surface, 111e, 112e lower edge, 111f, 112f upper edge, 112 second support member, 112a second inclined surface, C, C1, C2 Coil, W flat wire.

Claims (1)

A coil formed by winding a wire in a square shape and in multiple steps so that the length of a pair of first sides facing each other increases with the number of steps is transported from the mounting table of the winding device to the transfer destination Coil transport device, and
The lower edges are opposed to each other with an interval longer than the width of the mounting table and shorter than the maximum length of the first side, and separated from each other toward the upper edge from the lower edge side And the first and second inclined surfaces adjacent to one end of at least one of the first and second inclined surfaces and not opposite to the lower edge. Protruding to the side of the first or second inclined surface adjacent to the other end of at least one of the first and second inclined surfaces and without going beyond the lower edge portion A coil holding member including a second projecting surface
The coil holding member is supported such that the first and second inclined surfaces extend along corresponding ones of a pair of opposing second sides of the coil on the mounting table, and the coil holding member A moving mechanism for moving a member between the mounting table and the transport destination, wherein the coil holding member is moved so that the mounting table passes between the first and second inclined surfaces. A moving mechanism that moves from the lower side to the upper side of the mounting surface,
A coil transport apparatus comprising: