JP5680977B2 - Coil winding apparatus and coil winding method - Google Patents

Description

  The present invention relates to a coil winding apparatus and a coil winding method in which a winding start end and a winding end can be wired in the same winding layer.

  Conventionally, as a coil corresponding to the recent miniaturization of the motor, the wire is tightly wound so that no unnecessary gap is formed between the winding layers, and the winding start end and winding end of the wire are the same A so-called alpha winding (or also referred to as an “outer / outer winding”) that is wired in a winding layer of the type has been widely used. As this alpha winding coil, there is known a two-row spiral coil having first and second coils in which a wire is wound in a spiral shape and an inner connecting wire connecting inner peripheral ends of the first and second coils. It has been. And as a manufacturing apparatus of such a two-row spiral coil, a first wheel and a second wheel that face each other with a gap corresponding to two wires and rotate around the core in opposite directions, A winding supply section that feeds the wire toward the guide groove or hole of the wheel, and a storage section that stores the wire in a wound state and feeds the wire toward the guide groove or hole of the second wheel. An apparatus is provided (see, for example, Patent Document 1).

  In this manufacturing apparatus, an arbitrary position of the wire is set at the beginning of winding with respect to the outer periphery of the winding core, and the first and second wheels are rotated in opposite directions to each other, thereby extending the wire from the starting position to both sides. Are wound around the core in opposite directions at the same time, and a winding portion having two layers in the axial direction of the core is formed on the outer periphery of the core. And, by deriving the wire from the outer periphery of each winding part, it is possible to relatively easily manufacture a two-row spiral coil in which the winding start end and the winding end of the wire are drawn from the same outermost winding layer. I can do it.

  Moreover, in the said coil manufacturing apparatus, a predetermined torque is given with respect to reverse rotation of a storage drum and its storage drum as a storage part which pays out a wire toward the guide groove or hole of a 2nd wheel. What has a back tensioner is disclosed. The storage drum and the back tensioner are connected so as to be linked with each other by a belt, and when the wire rod stored in the winding state by the normal rotation of the storage drum is fed out by reversing the storage drum. The back tensioner applies a predetermined torque to the storage drum, thereby applying a constant tension to the wire fed from the drum.

JP-A-10-154626 (paragraph numbers “0010”, “0011” and “0019”)

  However, in the coil manufacturing apparatus in Patent Document 1 described above, the first and second wheels are rotated in opposite directions separately from the winding core, so that the number of turns in both the first and second coils is the same. Although suitable for the manufacture of spiral coils, it has been difficult to manufacture coils in which the number of turns of the first coil and the number of turns of the second coil are different. That is, for example, the first coil is formed in a plurality of layers in the axial direction of the core, and the number of turns is greatly increased, while the second coil cannot be a single-layer spiral coil and can be manufactured. There is a problem that the first and second coils having the same number of turns are limited to the two-row spiral coil in which the inner connecting wires are connected.

  Moreover, in the coil manufacturing apparatus in Patent Document 1 described above, when the wire drum is fed out by reversing the wire drum, a constant tension is applied by the back tensioner, but the wire wire stored in the wire drum is stored. When the wire is unwound from the storage drum and fed out, the outer diameter of the wound wire is gradually reduced. The back tensioner applies a constant torque to the storage drum. However, when the torque of the storage drum is constant, the outer diameter of the wire that is drawn out and wound is reduced. There is also a problem that the tension applied to the wire fed from the outer periphery gradually increases, causing fluctuations in the tension. The fluctuation of the tension causes a difference in the degree of adhesion of the wire in the formed coil, and becomes a factor of reducing the space factor of the wire.

  An object of the present invention is to provide a coil winding apparatus and a coil winding method that can easily and individually change and adjust the number of turns of the first and second coils connected by the inner connecting wire.

  Another object of the present invention is to provide a coil winding apparatus and a coil winding method capable of preventing fluctuations in the tension of a wire drawn out when forming a coil.

The coil winding device of the present invention is fed from a nozzle by rotating a wire reel that is configured so that the wire reel is detachably mounted and a wire reel that feeds the wire through a nozzle with a constant tension. that the driving source of the wire to form a蓄線I winding to蓄線reel and the winding jig for winding by rotating the wire to be unwound from 蓄線of wire or蓄線reel fed from the nozzle by Repetitive out ingredients and, coupling mechanism that the winding jig is rotated together with the winding jig蓄線reel detached from the drive source (75) fixed to the take-up jig when winding the wire fed from the nozzle When the winding jig unwinds from the storage line of the storage reel and winds the wire fed, the drive source to which the storage reel is attached is attached to the storage reel in a direction away from the winding jig. Wire that is fed out from the storage reel And a fluid pressure cylinder for applying a constant tension to the cylinder .

When the storage reel approaches the winding jig, the wire is fed from the storage reel, and when the storage reel is separated from the winding jig, the drive source is prohibited so as not to feed the wire from the storage reel. More preferably, a control device for controlling is provided .

The method of the present invention is a coil winding method using the above-described coil winding apparatus, in which a wire fed from a wire feeder is wound around a storage reel, and a winding jig is rotationally driven together with the storage reel. Then, after winding the wire fed from the wire feeding machine around the winding jig to form the first coil, the winding jig is rotated and stored with the storage reel removed from the winding jig. This is a coil winding method in which a wire wound around a wire reel is wound around a winding jig to form a second coil.

The characteristic point is that in forming the first coil, a constant tension is applied to the wire fed from the wire feeding machine in the wire feeding machine, and the storage reel removed from the winding jig is formed in the second coil. Is urged in a direction away from the winding jig to apply a certain tension to the wire fed from the storage reel.

  In the coil winding apparatus and the coil winding method of the present invention, a wire rod fed from a wire feeder is wound around a storage reel, and the storage reel is fixed to a winding jig by a connecting mechanism, and the storage reel At the same time, the winding jig is rotated and the wire fed from the wire feeding machine is wound around the winding jig to form the first coil. Therefore, by changing the number of revolutions of the winding jig, The number of turns of one coil can be adjusted freely. In addition, after the first coil is formed, the winding jig is rotated with the storage reel removed from the winding jig, and the winding material is unwound from the storage reel and fed out. Since the second coil is formed by winding, the number of turns of the second coil can be freely adjusted by changing the number of rotations of the winding jig. Therefore, the number of turns of the first and second coils connected by the inner connecting wire can be easily changed and adjusted individually.

  Further, in the coil winding apparatus and the coil winding method of the present invention, the storage reel is moved by moving the storage reel relative to the winding jig when the wire wound from the storage reel is fed out. Since a certain tension is applied to the wire drawn from the wire, even if the outer diameter of the wound wire is reduced by unwinding the wire stored in the storage reel, the wire is applied to the wire. There is no variation in the applied tension. Therefore, there is no difference in the degree of adhesion of the wire in the formed coil, and the space factor of the wire forming the coil can be improved. If the storage reel is moved by a fluid pressure cylinder, the tension applied to the wire can be adjusted relatively easily by adjusting the fluid pressure.

  On the other hand, when the wire fed from the storage reel is wound by the winding jig, the storage reel itself does not rotate, so that the storage reel approaches the winding jig. However, when the storage reel approaches the winding jig, the storage reel is rotated to feed the wire from the storage reel, and when the storage reel is separated from the winding jig, If the feeding of the wire is prohibited, even if a relatively long wire is wound around the storage reel, the relatively long wire can be fed out sequentially. If the drive source is a servo motor and the storage reel is configured to be detachably attached to the rotation shaft of the servo motor, the storage reel is rotated to serve as a drive source for winding the wire fed from the wire feeder. The servo motor can also be used.

It is a top view which shows the winding apparatus of embodiment of this invention. It is a figure which shows the state in which the wire drawn | fed out from the storage reel is wound up by the winding jig | tool. It is a figure corresponding to FIG. 2 which shows the state which the storage reel moved and approached the winding jig | tool. FIG. 2 is an enlarged view of a tension applying device viewed from the direction A in FIG. 1. FIG. 5 is a view corresponding to FIG. 4 showing a state in which tension is applied to the wire by the tension applying device. FIG. 2 is an enlarged view of a wire feeding machine viewed from the B direction in FIG. 1. It is CC sectional view taken on the line of FIG. 1 which shows a winding jig | tool. It is a figure corresponding to FIG. 7 which shows the state which reduced the winding width | variety of the wire in the winding jig | tool. It is a figure corresponding to Drawing 7 showing the state where the core material in the winding jig was buried in the rotating body. It is a partial cross section figure showing structures, such as a connecting mechanism which fixes a storage reel and it removably. It is a perspective view of the storage reel. FIG. 2 is a plan view corresponding to FIG. 1 illustrating a state in which the storage reel is fixed to a winding jig and winding of a first coil is started. It is a top view corresponding to Drawing 1 showing the state where the storage reel is moved with a tension grant device, and the 2nd coil is formed. It is a perspective view which shows the state of the wire in the winding jig | tool at the time of starting a coil | winding. It is the perspective view by which the winding of the 1st layer in the 1st coil was made. FIG. 16 is a perspective view corresponding to FIG. 15 in which a second layer winding in the first coil is formed. FIG. 16 is a perspective view corresponding to FIG. 15 in which the winding of the first coil is completed. FIG. 16 is a perspective view corresponding to FIG. 15 for starting winding of the second coil adjacent to the first coil. It is a perspective view of the coil with which the 1st coil and the 2nd coil were connected by the inner crossover.

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

  FIG. 19B shows the coil 10 obtained by the present invention. The coil 10 includes first and second coils 12 and 13 around which a wire 11 is wound. The wire 11 in this embodiment exemplifies a case where a self-bonding lead wire (so-called cement wire) having a square cross section and having an insulating coating fused by hot air or a solvent is used. The first coil 12 shows a winding in which a wire 11 is wound in a spiral shape and is provided in a plurality of layers in the radial direction of the winding, and the second coil 13 is a wire 11 wound in a spiral shape. Indicates what was turned. The inner peripheral ends of the first and second coils 12 and 13 are connected by a coil inner connecting wire 14, and the outer peripheral ends of the first and second coils 12 and 13 are lead portions 15 and 16 extending in the radial direction. It has become. The wire rods 11 adjacent to each other in the winding direction in the first and second coils 12 and 13 are in contact with each other, and the wire rods 11 in the first and second coils 12 and 13 are in contact with each other. The space factor of the wire is increased.

  A winding device 20 of the present invention is shown in FIG. Here, three axes X, Y, and Z orthogonal to each other are set, the X axis extends in a substantially horizontal front-rear direction, the Y axis extends in a substantially horizontal lateral direction, and the Z axis extends in a substantially vertical direction. The structure of will be described.

  The coil winding apparatus 20 of the present invention includes a winding jig 21 provided on the gantry 19. The winding jig 21 includes a core member 22 that actually winds the wire 11, a first rotating body 23 provided with the core member 22 penetrating the central axis, and end portions of the first rotating body 23. An insertion hole 24a into which the core member 22 protruding from the second rotation body 24 is formed on the central axis.

  The core material 22 is a rod-shaped member having a circular cross section. The first rotating body 23 is formed to have an outer diameter larger than that of the core member 22, and the first rotating body 23 is a rod-shaped member having a circular cross section provided so that the core member 22 penetrates the central axis. The core member 22 is splined to the first rotating body 23 and can be moved in the longitudinal direction of the first rotating body 23, but is inserted into the first rotating body 23 so as not to rotate. A first support wall 26 is erected on the gantry 19, and the first rotating body 23 extends in the Y-axis direction and is rotatably provided on the first support wall 26. A servo motor 27 that rotates the first rotating body 23 is attached to the first support wall 26. Pulleys 28a and 28b are provided on the rotary shaft 27a of the first rotating body 23 and the servo motor 27, respectively, and a belt 28c is installed on these pulleys 28a and 28b. As a result, when the servo motor 27 is driven to rotate the rotating shaft 27a, the rotation is transmitted to the first rotating body 23 via the belt 28c, thereby rotating the first rotating body 23 together with the core member 22. Configured.

  As shown in FIG. 7, the entire length of the core material 22 is formed longer than the entire length of the first rotating body 23. The core member 22 protruding from one end side of the first rotating body 23 is wound around the wire 11 (FIG. 1) to form the coil 10, so that the outer diameter of the core member 22 is obtained from the inner diameter of the coil 10 (FIG. 19). Are formed equally. The core member 22 that protrudes from the other end of the first rotating body 23 is provided with a holding member 29 that can rotate the core member 22 and cannot move in the axial direction. In addition, a mobile unit 31 that moves the holding member 29 in the Y-axis direction is provided along the first rotating body 23 on the first support wall 26. The mobile unit 31 includes a housing 35 that is fixed to the upper portion of the first support wall 26 in the Y-axis direction, a ball screw 33 that is rotationally driven by a servo motor 32, and a driven member that is screwed into the ball screw 33 and moves in parallel. The holding member 29 is attached to the follower 34. Since this moving machine 31 moves the core material 22 in the Y-axis direction via the holding member 29, as shown in FIG. 7, the core material 22 is projected from the one end side of the first rotating body 23. As shown in FIG. 9, the first rotating body 23 is configured such that a portion protruding from one end side of the first rotating body 23 and winding the wire 11 can be immersed in the first rotating body 23.

  As shown in FIGS. 1 and 7 to 9, on the gantry 19, second and third support walls 36 and 37 are provided on the gantry 19 at a predetermined distance from the first support wall 26 in the Y-axis direction. The second rotating body 24 is installed on the second and third support walls 36 and 37 so as to extend coaxially with the first rotating body 23 in the Y-axis direction and move in the longitudinal direction. A servo motor 38 that rotates the second rotating body 24 is attached to the third support wall 37. Pulleys 39a and 39b are provided on the rotating shaft 38a of the second rotating body 24 and the servo motor 38, respectively, and a belt 39c is installed on these pulleys 39a and 39b. The pulley 39 b provided on the second rotating body 24 is movable in the longitudinal direction of the second rotating body 24 and is provided on the third support wall 37. As a result, when the servo motor 38 is driven and the rotating shaft 38a rotates, the rotation is transmitted to the second rotating body 24 via the belt 39c, whereby the second rotating body 24 is configured to be rotatable.

  In addition, an insertion hole 24a through which the tip of the core member 22 protruding from the end of the first rotating body 23 can enter is formed at the center axis of the end of the second rotating body 24 facing the first rotating body 23. The wire 11 is wound around the core 22 sandwiched between the first and second rotating bodies 23 and 24. Then, on the winding jig 21, the second rotating body 24 is moved in the axial direction with respect to the first rotating body 23, and the wire 11 is wound between the first and second rotating bodies 23, 24. An interval variable mechanism 41 that changes the length L (FIG. 7) of the core material 22 to be taken is provided.

  The distance varying mechanism 41 in this embodiment includes a ball screw 42 installed on the second and third support walls 36 and 37 so as to be parallel to the second rotating body 24, and a servo motor 43 for rotating the ball screw 42. , And a movable base 44 that is engaged with the ball screw 42 and moves in the Y-axis direction. The second rotating body 24 is attached to the movable table 44 so as not to move in the axial direction and to be rotatable. Thereby, when the servo motor 43 is driven to rotate the ball screw 42 and the movable table 44 moves in the Y-axis direction, the second rotating body 24 moves in the Y-axis direction together with the movable table 44. And if the 2nd rotary body 24 moves to the Y-axis direction which is the axial direction, since the 1st rotary body 23 will not move, it will be pinched | interposed into the 1st and 2nd rotary bodies 23 and 24, and the wire 11 will be wound up The length L of the core member 22 is changed, and for example, the length L is narrowed as shown in FIG. 8 or widened as shown in FIG.

  As shown in FIGS. 1 and 6, a wire rod feeder 50 for feeding the wire rod 11 is provided on the gantry 19. The wire feeding machine 50 includes a nozzle 51 through which the wire 11 is inserted, a nozzle moving mechanism 52 that moves the nozzle 51 in three axial directions, and a tension device 53 that applies tension to the wire 11. The nozzle 51 is fixed to the support plate 54, and the nozzle moving mechanism 52 is configured to be able to move the support plate 54 with respect to the gantry 19 in three axial directions. The nozzle moving mechanism 52 in this embodiment is configured by a combination of X-axis, Y-axis, and Z-axis direction extendable actuators 56 to 58. Each of the telescopic actuators 56 to 58 constituting the nozzle moving mechanism 52 is provided with an elongated box-shaped housing 56d to 58d and extending in the longitudinal direction inside the housing 56d to 58d, and is rotationally driven by servo motors 56a to 58a. The ball screws 56b to 58b and the followers 56c to 58c that are screwed into the ball screws 56b to 58b to move in parallel are formed. When each of the telescopic actuators 56 to 58 is driven by the servo motors 56a to 58a and the ball screws 56b to 58b are rotated, the followers 56c to 58c screwed into the ball screws 56b to 58b are the longitudinal lengths of the housings 56d to 58d. It is configured to be movable along the direction.

  In this embodiment, a support plate 54 provided with a nozzle 51 is attached to a housing 56d of an X-axis direction extendable actuator 56 so as to be movable in the X-axis direction, and the support plate 54 is attached together with the X-axis direction extendable actuator 56 in the Z-axis direction. The follower 56c of the X-axis direction expansion / contraction actuator 56 is attached to the follower 57c of the Z-axis direction expansion / contraction actuator 57. The support plate 54 can be moved in the Y-axis direction together with the X-axis and Y-axis expansion / contraction actuators 56, 57, and the housing 57 d of the Z-axis expansion / contraction actuator 57 serves as a follower 58 c of the Y-axis expansion / contraction actuator 58. Mounted. The housing 58 d of the Y-axis direction extendable actuator 58 extends in the Y-axis direction and is fixed to the gantry 19. The servo motors 56a to 58a in the telescopic actuators 56 to 58 are connected to control outputs of a controller (not shown) that controls them.

  As shown in FIG. 6, the support plate 54 has a cutter device 59 (patent application number; Japanese Patent Application No. 2010-87668) for cutting the wire 11 that has passed through the nozzle 51 by air pressure in addition to the nozzle 51, and the wire 11. A gripping device 60 is provided that grips the wire 11 by the gripping piece 60 a and prohibits the movement of the wire 11 passing through the nozzle 51. The cutter device 59 is attached to the support plate 54 via an air cylinder 59a that is driven by a command from a controller (not shown). With this air cylinder 59 a, the cutter device 59 is configured to be movable between a cutting position where the cutter teeth 59 b cut the wire 11 and a standby position where it is separated from the wire 11. As a result, the cutter device 59 and the gripping device 60 move with the nozzle 51 and can be controlled by a controller (not shown).

  On the other hand, the tension device 53 can apply tension to the fed wire 11 and pull back the wire 11. The tension device 53 in this embodiment includes a casing 61 provided on the gantry 19 and a drum 62 and a tension bar 63 provided on a side surface of the casing 61 in the Y-axis direction. The wire 11 is wound around the drum 62, and a feed control motor 64 for feeding the wire 11 by rotating the drum 62 is provided inside the casing 61. The wire 11 fed from the drum 62 is provided at the tip of the tension bar 63. Guided to guide 63a. The wire 11 guided to the wire guide 63a is wired so as to penetrate the nozzle 51 from the wire guide 63a.

  The tension bar 63 is rotatable in the X-axis direction with the rotation shaft 63b at the base end as a fulcrum. The rotation angle of the rotation shaft 63b is detected by a potentiometer 65 serving as a rotation angle detection means housed in the casing 61 and attached to the rotation shaft 63b. The detection output of the potentiometer 65 is input to a controller (not shown), and the control output from the controller is connected to the feeding control motor 64.

  Further, one end of a spring 66, which is an elastic member serving as a biasing means for applying a biasing force in the rotation direction of the tension bar 63, is attached to a predetermined position between the rotation shaft 63b of the tension bar 63 and the wire guide 63a. It is attached via a bracket 63c. The tension bar 63 is given an elastic force according to the rotation angle by a spring 66 which is an elastic member. The other end of the spring 66 is fixed to the moving member 67. The moving member 67 is screwed into a male screw 68a of a tension adjusting screw 68, and is configured to be movable and adjustable according to the rotation of the male screw 68a. Thus, the fixed position of the other end of the spring 66 can be displaced, and the tension of the wire 11 applied by the tension bar 63 can be adjusted.

  A controller (not shown) is configured to control the feed control motor 64 so that the rotation angle detected by the potentiometer 65 serving as a rotation angle detection means becomes a predetermined angle. Accordingly, in this tension device 53, tension is applied to the wire 11 through the tension bar 63 by the spring 66, and the drum 62 is rotated so that the tension bar 63 is at a predetermined angle, whereby a predetermined amount of the wire 11 is fed out. Is done. Therefore, the tension of the wire 11 is maintained at a predetermined value.

  As shown in FIG. 1, the winding device 20 of the present invention includes a storage reel 70 that winds a wire 11 fed from a wire feeder 50. As shown in FIGS. 10 and 11, the storage reel 70 includes a bottomed cylindrical winding material 70a around which the wire 11 is actually wound, and a wire formed around the winding material 70a. 11 and a pair of flange portions 70b and 70c that face each other with a gap 70n slightly wider than the wire diameter. One flange portion 70b is formed with a slit 70d into which the starting end of the wire 11 enters and locks. As a result, when the storage reel 70 rotates forward with its central axis as the center of rotation, the wire 11 fed from the wire feeder 50 and locked at the start end to the slit 70d is placed between the pair of flange portions 70b and 70c. It winds up in the gap 70n. And in the bottom part in the winding material 70a, the coupling shafts 70e and 70f are formed on the central axis so as to protrude both inside and outside.

  Returning to FIG. 1, when the winding jig 21 winds the wire 11 fed from the wire feeding machine 50, the storage reel 70 is fixed to the winding jig 21 together with the winding jig 21. A connecting mechanism 71 to be rotated is provided on the winding jig 21. The coupling mechanism 71 includes an arm 72 that protrudes in the rotational radial direction of the first rotating body 23, and a first lock mechanism 73 that is provided at the tip of the arm 72. As shown in FIG. 10, the first locking mechanism 73 includes a cylindrical body 73a having a coupling hole 73b into which the external coupling shaft 70f of the storage reel 70 can be inserted, and an external coupling provided in the cylindrical body 73a. A lock member 73c that engages with an annular groove 70h formed in the shaft 70f, a spring 73d that presses the lock member 73c against the annular groove 70h, and the like are provided.

  The cylindrical body 73a is formed with a slit 73e extending in the axial direction from the end thereof, and a projection 70k that can enter the slit 73e is formed on the external coupling shaft 70f. Therefore, when the external coupling shaft 70f is inserted into the coupling hole 73b against the urging force of the spring 73d, the lock member 73c is pressed against the annular groove 70h by the urging force of the spring 73d. The shaft 70f is configured not to come out of the coupling hole 73b. Since the projection 70k enters the slit 73e with the external coupling shaft 70f inserted into the coupling hole 73b, the storage reel 70 is attached to the winding jig 21 in a non-rotatable manner.

  On the other hand, as shown in FIG. 12, when the storage reel 70 rotates with the winding jig 21 in a state where the storage reel 70 is attached to the distal end portion of the arm 72 by the first lock mechanism 73, The arm 72 is fixed to the first rotating body 23 so that the storage reel 70 is positioned so as not to interfere with the wire 11 fed from the wire feeder 50.

  Further, as shown in FIG. 14, a concave groove 23 a that contacts the outer periphery of the core material 22 is formed along the arm 72 at the end of the first rotating body 23 from which the core material 22 that winds up the wire 11 protrudes. Is done. The concave groove 23a has a width and a depth that can accommodate the wire 11 and is formed on the outer periphery of the first rotating body 23 so as to open in the direction toward the first lock mechanism 73 (FIG. 1). The Then, in a state where the storage reel 70 is attached to the distal end portion of the arm 72 via the first lock mechanism 73 (FIG. 1), the wire 11 extending from the storage reel 70 enters the groove 23a from this opening. Formed as follows.

  As shown in FIG. 1, the coil winding device 20 includes a drive source 75 that rotates the storage reel 70. The drive source 75 in this embodiment is a servo motor capable of both normal rotation and reverse rotation of the rotation shaft 75a. As shown in FIG. 10, the storage reel 70 is configured to be attachable to and detachable from the rotation shaft 75 a of the servo motor 75 via a second lock mechanism 76. The second locking mechanism 76 is coupled to the rotating shaft 75a of the servomotor 75 coaxially, and has a cylindrical body 76a having a coupling hole 76b into which the internal coupling shaft 70e of the storage reel 70 can be inserted, and the cylindrical body 76a. A locking member (not shown) which is provided and engages with an annular groove 70g formed in the internal coupling shaft 70e, and is inserted into the cylindrical body 76a and moves in the axial direction to insert or remove the locking member (not shown) into the annular groove 70g. An operation member 76c and a spring 76d that urges the operation member 76c in a direction in which the lock member is inserted into the annular groove 70g are provided.

  The cylindrical body 76a is formed with a slit 76e extending in the axial direction from the end thereof, and a projection 70j that can enter the slit 76e is formed on the internal coupling shaft 70e. For this reason, when the internal coupling shaft 70e is inserted into the coupling hole 76b and the storage reel 70 is attached to the servo motor as the drive source 75, the protrusion 70j enters the slit 76e, and the rotation shaft of the servo motor 75 is rotated. The rotation of the storage reel 70 with respect to 75a is prohibited. As a result, in a state where the storage reel 70 is attached to the servo motor 75, when the servo motor 75 is driven and the rotation shaft 75a rotates, the storage reel 70 also rotates together with the rotation shaft 75a, and the servo motor 75 stops. Then, the rotation of the storage reel 70 is stopped together with the rotating shaft 75a to be stopped.

  Returning to FIG. 1, a movable base 77 is provided on the gantry 19 so as to be movable in three axial directions. The movable table 77 is provided on the gantry 19 via a movable table moving mechanism 78, and the movable table moving mechanism 78 in this embodiment is configured by a combination of X-axis, Y-axis, and Z-axis direction expansion / contraction actuators 79 to 81. Is done. Since the movable table moving mechanism 78 has the same structure as the nozzle moving mechanism 52 described above, repeated description is omitted.

  As shown in FIGS. 4 and 5, the storage reel 70 is moved to the movable base 77 by moving the storage reel 70 removed from the winding jig 21 with respect to the winding jig 21. A tension applying device 91 is provided for applying a certain tension to the wire 11 fed out from. The tension applying device 91 in this embodiment includes a fluid pressure cylinder 92 that is provided on the movable base 77 and moves in a direction in which the storage reel 70 is moved away from the winding jig 21. The fluid pressure cylinder 92 extends to the movable base 77 in the X-axis direction and is actually mounted, and the fluid pressure supplied to and discharged from the cylinder body 92b reciprocates along the cylinder body 92b in the X-axis direction. Possible slider 92a. Then, a servo motor as a drive source 75 is attached to the slider 92a. The servo motor 75 is attached to the slider 92a via a mounting plate 94. In addition to the servo motor 75, the second locking mechanism provided on the rotating shaft 75a (FIG. 10) of the servo motor 75 is attached to the mounting plate 94. An operation cylinder 95 for operating 76 (FIG. 10) is further provided.

  As shown in FIG. 10, an engagement member 96 that engages with the operation member 76 c in the second lock mechanism 76 is attached to the rod 95 a in the operation cylinder 95. When the operating cylinder 95 immerses the rod 95a as shown by the solid line arrow, the operating member 76c moves backward against the urging force of the spring 76d, and the coupling of the inner coupling shaft 70e in the cylindrical body 76a is performed. It is configured so that it can be inserted into the hole 76b. Then, when the rod 95a is protruded as indicated by the broken line arrow with the internal coupling shaft 70e inserted into the coupling hole 76b, the operation member 76c moves forward again and a lock member (not shown) is pressed against the annular groove 70g. Thus, the coupling shaft 70e is configured not to come out of the coupling hole 76b.

  On the other hand, when the operating cylinder 95 is inserted again as shown by the solid arrow in the state in which the internal coupling shaft 70e is inserted into the coupling hole 76b, the inner coupling shaft 70e that has already been inserted is inserted. It is configured such that it can be extracted from the coupling hole 76b. As described above, the storage reel 70 is configured to be detachable from the rotation shaft 75a of the servo motor 75 as a drive source by the second lock mechanism 76. The storage reel 70 connected to the rotation shaft 75a of the servo motor 75 can be rotated forward and reverse around the Y axis by the servo motor 75. Then, the storage reel 70 winds and stores the wire 11 fed from the wire feeder 50 by normal rotation, and reverses the wire 11 after the storage to reverse the wound wire 11. It is unwound and delivered from the storage reel 70.

  As shown in FIGS. 4 and 5, the fluid pressure cylinder 92 moves the slider 92a to which the servo motor 75 is attached in the X-axis direction. Therefore, when the storage reel 70 is attached to the rotating shaft 75a (FIG. 10) of the servo motor 75 and the servo motor 75 moves away from the winding jig 21, the storage reel 70 is also taken up. A certain tension is applied to the wire 11 that moves away from the jig and is fed from the storage reel 70. When applying this tension, the servo motor 75 is not driven and the storage reel 70 is not rotated.

  The movable base 77 is provided with an approach sensor 97 that detects that the slider 92a has approached the winding jig 21, and a separation sensor 98 that detects that the slider 92a has separated from the winding jig 21. It is done. Each of the sensors 97 and 98 is a sensor that outputs an ON signal when the first protrusion 92d provided on the slider 92a is opposed to the sensor 92a, and as shown in FIG. 3, when the slider 92a approaches the winding jig 21. An approach sensor 97 is provided at a position facing the first projection 92d. As shown in FIG. 2, a separation sensor 98 is disposed at a position facing the first projection 92d when the slider 92a is separated from the winding jig 21. Provided. The detection outputs of the sensors 97 and 98 are connected to a controller (not shown) which is a control device for the servo motor 75 which is a drive source. Then, as shown in FIG. 3, the controller drives the servo motor 75 when the storage reel 70 approaches the winding jig 21 and the proximity sensor 97 outputs an ON signal, as shown in FIG. When the storage reel 70 is separated from the winding jig 21 and the separation sensor 98 outputs an ON signal, the servo motor 75 being driven is stopped. When the storage reel 70 approaches the winding jig 21 by the controller controlling the servo motor 75 as described above, the wire 11 is fed out from the storage reel 70 and the storage reel 70 is moved from the winding jig 21. When separated, the feeding of the wire 11 from the storage reel 70 is prohibited.

  The movable base 77 is further provided with a movement restriction cylinder 93 that allows the movement of the slider 92a in the fluid pressure cylinder 92 to be prohibited. The movement restricting cylinder 93 is provided on the movable base 77 so as to extend in the Z-axis direction so as to be orthogonal to the fluid pressure cylinder 92. On the other hand, the second protrusion 92c facing the movement restricting cylinder 93 is attached to the slider 92a of the fluid pressure cylinder 92 when the storage reel 70 is separated from the winding jig 21 as shown in FIG. The slider 93a of the movement restricting cylinder 93 is provided with an engagement piece 93c that engages with or disengages from the second protrusion 92c depending on whether or not fluid pressure is supplied. Then, when fluid is supplied to the main body 93b of the movement restricting cylinder 93 and the slider 93a moves as indicated by the solid line arrow in FIG. 4, and the engaging piece 93c provided there engages the second protrusion 92c, When the movement of the slider 92a in the fluid pressure cylinder 92 is prohibited and the supply of fluid is stopped, the slider 93a is restored as indicated by the broken line arrow in FIG. 4 and the engagement piece 93c is detached from the second protrusion 92c. The slider 92a is allowed to move in the pressure cylinder 92.

  Although not shown, a hot air generator for heating and fusing the wire 11 wound around the core material 22 that is the winding jig 21 is provided on the mount 19.

  Next, the winding method of the present invention using the winding device will be described.

  In the winding method of the present invention, the wire 11 fed from the wire feeder 50 is wound around the storage reel 70, and the winding jig 21 is rotationally driven together with the storage reel 70 to be fed out from the wire feeder 50. After winding the wire 11 around the winding jig 21 to form the first coil 12, the winding jig 21 is rotationally driven with the storage reel 70 removed from the winding jig 21 to store the storage reel. This is a method of forming the second coil 13 by winding the wire 11 unwound from 70 and wound around a winding jig 21. Below, each process is explained in full detail.

<Storage process>
In this step, the wire 11 fed from the wire feeder 50 is wound around the storage reel 70. The winding is performed by a drive source 75, and the storage reel 70 is non-rotatably attached to a rotation shaft 75a of a servo motor 75 as a drive source by a second lock mechanism 76. In this attachment, the rod 95a of the operating cylinder 95 shown in FIG. 10 is inserted as shown by the solid arrow, and the operating member 76c is retracted against the urging force of the spring 76d, and the internal coupling shaft 70e is moved in this state. This is done by inserting into the coupling hole 76b and then projecting the rod 95a as indicated by the dashed arrow. At this time, the movement restricting cylinder 93 shown in FIG. 4 is used to engage the engagement piece 93c with the second protrusion 92c to prohibit the movement of the slider 92a in the fluid pressure cylinder 92 provided with the servo motor 75. It is preferable to place the servo motor 75 because unnecessary movement of the servo motor 75 can be prohibited.

  Then, the servo motor 75 is driven to rotate the rotating shaft 75 a together with the storage reel 70, and thereby the wire 11 fed from the wire feeder 50 is wound around the storage reel 70. In the detailed procedure, first, the cutter device 59 is maintained at the standby position. Then, the wire 11 is gripped by the gripping piece 60a of the gripping device 60, and the nozzle 51 is moved by the nozzle moving mechanism 52 in a state where the wire 11 is protruded from the nozzle 51. As shown in FIG. Is inserted into the slit 70d. In this state, the servo motor 75 is driven to cause the storage reel 70 to rotate slightly forward (for example, rotate about 45 to 90 degrees), and the wire rod inserted into the slit 70d by the normally rotated storage reel 70. The edge of 11 is bent, and thereby the end of the wire 11 is locked to the slit 70d. After the end of the wire 11 is thus locked in the slit 70d, the gripping device 60 cancels the gripping of the wire 11 by the gripping piece 60a as shown in FIG. 11 feeds are allowed. Thereafter, the storage reel 70 is further rotated forward to wind the wire 11 that is subsequently fed from the wire feeding machine 50 around the winding material 70a between the pair of flanges 70b and 70c. Then, after winding a predetermined amount of the wire 11, the servo motor 75 is stopped to stop normal rotation of the storage reel 70.

<First storage reel moving process>
In this step, the storage reel 70 attached to the rotating shaft 75 a of the servo motor 75 that is a drive source is fixed to the winding jig 21. This fixing is performed by the connecting mechanism 71. At this time, the servo motor 27 is driven to rotate the arm 72 together with the first rotating body 23, and the first locking mechanism 73 attached thereto is stored as shown in FIG. Opposing to the wire reel 70. Then, the storage reel 70 is moved together with the servo motor 75 by the movable table moving mechanism 78, the external coupling shaft 70 f is inserted into the coupling hole 73 b, and the storage reel 70 is attached to the first lock mechanism 73.

  Thereafter, the rod 95a of the operating cylinder 95 is retracted, the operating member 76c is retracted, and the second lock mechanism 76 is released. In this state, the servo motor 75 is moved away from the first lock mechanism 73 by the movable table moving mechanism 78. As a result, the storage reel 70 detached from the servo motor 75 is fixed to the winding jig 21 by the connecting mechanism 71. At this time, as shown in FIG. 12, the nozzle moving mechanism 52 positions the nozzle 51 so that the wire 11 extending in the tangential direction of the core 22 is orthogonal to the core 22. And as shown in FIG. 14, the wire 11 extended from the wire feeder 50 to the storage reel 70 is accommodated in the ditch | groove 23a formed in the 1st rotary body 23. As shown in FIG.

<First coil formation process>
In this process, the winding jig 21 is rotationally driven together with the storage reel 70, and the wire 11 fed from the wire feeder 50 is wound around the winding jig 21 to form the first coil 12. Specifically, the servomotors 27 and 38 are driven to rotate synchronously, and the first and second rotating bodies are rotated together with the core member 22 as indicated by solid line arrows in FIG. The wire 11 drawn out is wound around the core member 22 sandwiched between the first and second rotating bodies 23 and 24.

  When winding is started, each time the core material 22 rotates once and the wire material 11 is wound once, the nozzle moving mechanism 52 causes the nozzle 51 to move in the axial direction of the core material 22 by an amount equal to the wire diameter of the wire material 11. Move. Further, the distance varying mechanism 41 is configured such that the length L (FIG. 8) of the core material 22 around which the wire 11 between the first and second rotating bodies 23, 24 is wound is set to the wire diameter of the wire 11. As the winding is slightly wider, the length L of the core material 22 between the first and second rotating bodies 23 and 24 is increased each time the core material 22 rotates once and the wire 11 is wound once. The wire 11 is expanded by an amount equal to the wire diameter. Thereby, as shown in FIG. 15, the wire 11 can be wound so that the core material 22 is in close contact with each other in the longitudinal direction.

  In the present embodiment, the first coil 12 is shown in which a winding in which the wire 11 is spirally wound in the axial direction of the core material 22 is provided across a plurality of layers in the radial direction of the core material 22. For this reason, the winding 12a of the first layer shown in FIG. 15 can be obtained by winding the wire 11 having a predetermined length on the core 22. At the stage where the first layer winding 12a is obtained, the length L of the core material 22 between the first and second rotating bodies 23, 24 is the winding width, that is, the number of turns of the wire 11 is the wire diameter. It is slightly longer than the length multiplied by. After the first-layer winding 12a is obtained, the length L of the core member 22 between the first and second rotating bodies 23, 24 is slightly shortened by the interval variable mechanism 41, and then is restored again. By returning to the length of the core material 22, the wire material 11 wound in alignment with the core material 22 and aligned in the axial direction of the core material 22 is compressed in the axial direction of the core material 22, and the wire material in the first layer winding 12a 11 are brought into close contact with each other. And the hot air generator which is not shown in figure heats the wire 11 wound around the core material 22 which is the winding jig 21, and fuses the wire 11 which adheres mutually.

  As shown in FIG. 15, when the wire 11 is wound around the core material 22 to form the first layer winding, the second layer winding is formed on the first layer winding 12a. The wire 11 is further wound up as 12b. In winding the wire 11 constituting the second layer winding 12b, the interval variable mechanism 41 (FIG. 7) is not driven. That is, the length L (FIG. 7) of the core member 22 between the first and second rotating bodies 23 and 24 is not changed. On the other hand, as indicated by the solid line arrow in FIG. 16, in the second layer winding 12b, the nozzle moving mechanism 52 (FIG. 7) is configured to wind the wire 11 once by rotating the core member 22 once. Each time the nozzle 51 is taken, the nozzle 51 is moved in an opposite direction to the moving direction at the time of the first layer winding 12 a by an amount equal to the wire diameter of the wire 11. Then, the wire 11 is wound around the core material 22 a predetermined number of times in the second-layer winding 12b, and the entire winding width of the first-layer winding 12a is set on the first-layer winding 12a. The wire 11 is wound around.

  As shown in FIG. 16, in a state where a predetermined amount of wire 11 constituting the second layer winding 12b is aligned and wound on the first layer winding 12a, the second layer winding 12b is wound. The winding 12b is terminated. Thus, after the winding of the second layer is completed, the length L of the core member 22 between the first and second rotating bodies 23 and 24 is once again set by the interval variable mechanism 41 (FIG. 7). The wire rod 11 constituting the second layer winding 12b can be brought into close contact with each other by returning to the original length again after being slightly shrunk. By repeating this process alternately and sequentially forming the third and subsequent windings on the second winding 12b, the first layer having the desired number of layers as shown in FIG. One coil 12 is obtained.

  Thus, in the present invention, the storage reel 70 is fixed to the winding jig by the connecting mechanism 71, and the winding jig 21 is rotated together with the storage reel 70. Since the wire 11 fed from the wire feeder 50 is wound to form the first coil 12, the number of turns of the first coil 12 can be freely adjusted by changing the rotation speed of the winding jig 21. Can be adjusted.

  In forming the first coil 12, a constant tension is applied to the wire 11 fed from the wire feeder 50 by the wire feeder 50. As shown in FIG. 6, the tension is applied by a tension device 53 in the wire feeder 50, and the tension device 53 applies tension to the wire 11 through a tension bar 63 by a spring 66. Therefore, in the formation of the first coil 12, the tension of the wire 11 is maintained at a predetermined value, and it is possible to prevent a difference in the degree of adhesion between the layers of the wire 11 in the first coil 12.

  After the first coil 12 is obtained, as shown in FIG. 13, the wire 11 is gripped by the gripping piece 60 a of the gripping device 60 to prevent the wire 11 from being fed from the wire feeder 50. Then, the cutter device 59 (FIG. 6) is moved to the cutting position by the air cylinder 59a, and the wire 11 extending from the first coil 12 to the wire feeder 50 is cut. Thereby, as shown to Fig.19 (a), the 1st coil 12 from which the lead part 15 which consists of the wire extends to radial direction from the outer periphery can be obtained.

<Second storage reel moving process>
In this step, the storage reel 70 is detached from the winding jig 21, and the storage reel 70 is attached to the rotating shaft 75a of the servo motor 75 that is a drive source. Specifically, first, the servo motor 27 is driven to rotate the arm 72 together with the first rotating body 23, and the storage reel 70 attached via the first lock mechanism 73 is servo-served as shown in FIG. It is made to oppose the motor 75. Then, the rod 95a of the operating cylinder 95 is immersed as indicated by the solid line arrow to release the second lock mechanism 76, and in that state, the servo motor 75 is moved by the movable table moving mechanism 78, so that the storage reel 70 The coupling hole 76b in the second locking device 76 is fitted into the internal coupling shaft 70e. Thereafter, the rod 95a of the operating cylinder 95 is projected as indicated by the broken line arrow, and the storage reel 70 is attached to the rotating shaft 75a of the servo motor 75 by the second lock mechanism 76. In this state, the movable motor moving mechanism 78 moves the servo motor 75 away from the first lock mechanism 73, and the storage reel 70 is detached from the winding jig 21. Thereafter, as shown in FIG. 13, the storage reel 70 is positioned so that the wire 11 extending from the first coil 12 to the storage reel 70 is orthogonal to the core member 22.

<Second coil forming process>
In this step, the winding jig 21 is rotated and the wire 11 fed from the storage reel 70 is wound to form the second coil 13. At the time of winding, as shown by the solid line arrow in FIG. Expands the length L of the core material 22 between the first and second rotating bodies 23 and 24 to be slightly larger than the wire diameter of the wire 11. In this manner, a gap slightly wider than the wire diameter of the wire 11 is generated between the first coil 12 made of the wire 11 wound around the core material 22 and the first rotating body 23. And the wire 11 accommodated in the ditch | groove 23a is made to detach | leave from the ditch | groove 23a.

  Thereafter, the servomotors 27 and 38 are rotated in synchronization with each other, and the first and second rotating bodies are rotated together with the core member 22 in the opposite direction to the time when the first coil 12 is formed, as indicated by broken line arrows in FIG. Then, the wire 11 fed from the storage reel 70 is wound around the core material 22 adjacent to the first coil 12. At this time, the movable table moving mechanism 78 is not driven and the movable table 77 is not moved. Then, the wire 11 that is unwound from the storage reel 70 and drawn out is wound around the core material 22 between the first coil 12 and the first rotating body 23. Here, the pair of flange portions 70b and 70c in the storage reel 70 are opposed to each other with a gap 70n (FIG. 10) slightly wider than the wire diameter of the wire 11, and the wire 11 is wound around the winding material 70a therebetween. Therefore, the wire 11 fed from the storage reel 70 does not shift in the axial direction of the storage reel 70. For this reason, the wire 11 unwound from the storage reel 70 and fed out is a portion of the core 22 that is orthogonal to the wire 11, that is, the core 22 between the first coil 12 and the first rotating body 23. The second coil 13 is formed by being guided accurately and wound around the core material 22.

  In the formation of the second coil 13, the storage reel 70 removed from the winding jig 21 is moved with respect to the winding jig 21 to apply a certain tension to the wire 11 fed out from the storage reel 70. . In this embodiment, the storage reel 70 is moved by a fluid pressure cylinder 92 that urges the storage reel 70 in a direction to separate the storage reel 70 from the winding jig 21. That is, the slider 93a of the movement restricting cylinder 93 shown in FIG. 5 is restored as indicated by the solid line arrow, and the engaging piece 93c provided there is detached from the second protrusion 92c. This enables the slider 92a to move in the fluid pressure cylinder 92 provided with the servo motor 75. On the other hand, the servo motor 75 as a drive source is stopped, and the storage reel 70 is rotated together with the rotation shaft 75a to prohibit the wire 11 from being newly fed out. Then, the fluid pressure cylinder 92 is supplied with a fluid of a predetermined pressure, in this embodiment, compressed air adjusted to a predetermined pressure, and as shown by a broken line arrow in FIG. 2, the storage reel 70 together with the slider 92a. It urges itself in a direction away from the winding jig 21. Thereby, a certain tension is applied to the wire 11 that extends from the storage reel 70 and is wound around the core material 22.

  Thus, the tension applied to the wire 11 by moving the storage reel 70 in the direction away from the winding jig 21 and applying a certain tension to the wire 11 fed from the storage reel 70. Does not cause fluctuations. That is, in the present invention, a constant tension is not applied to the wire 11 by the back tensioner when rotating the storage reel 70. In the present invention, the wire rod fed out from the storage reel 70 by urging the storage reel 70 itself with a constant force in a direction away from the winding jig 21 without rotating the storage reel 70. 11 is given a certain tension. For this reason, even if the wire 11 stored in the storage reel 70 is unwound and fed out and the outer diameter of the wire 11 wound around the storage reel 70 decreases, the tension applied to the wire 11 There will be no fluctuations. Therefore, even in the formation of the second coil 13, the tension of the wire 11 is maintained at a predetermined value, and it is possible to avoid the occurrence of a difference in the degree of adhesion of the wire 11 in the second coil 13. The space factor of the wire 11 which forms 10 can be improved. And since the urging | biasing to the storage reel 70 is performed by the fluid pressure cylinder 92 which moves the storage reel 70 in the direction which leaves | separates from the winding jig | tool 21, the wire 11 is adjusted by adjusting the fluid pressure. It is possible to easily adjust the applied tension.

  On the other hand, when the wire 11 is wound around the core material 22 without rotating the storage reel 70, the storage reel 70 approaches the core material 22 together with the slider 92a against the urging force of the fluid pressure cylinder 92. Become. As shown in FIG. 3, the slider 92 a approaches the winding jig 21 and the first protrusion 92 d faces the proximity sensor 97. When the proximity sensor 97 detects that the storage reel 70 has approached the core member 22 in this way, a controller (not shown) drives the servo motor 75 as a drive source, and the storage reel 70 together with its rotating shaft 75a is indicated by a solid arrow. The wire 11 is reversely rotated as shown by, and the wire 11 more than the amount wound around the core material 22 is unwound from the storage reel 70 and newly fed out. When the storage reel 70 is reversed and the wire 11 is fed out as described above, the storage reel 70 moves together with the slider 92a as shown by the solid line arrow in FIG. Leave 22 Even when the new wire 11 is fed, the fluid pressure cylinder 92 urges the reversing storage reel 70 with a constant force in a direction away from the winding jig 21. A constant tension is applied to and maintained on the wire 11 that is fed out.

  When the storage reel 70 is reversed and the wire 11 is newly fed out, the slider 92a is gradually separated from the winding jig 21 by the urging force of the fluid pressure cylinder 92, and thereafter, as shown in FIG. The first protrusion 92d faces the separation sensor 98. Then, the separation sensor 98 detects that the storage reel 70 has been separated from the core material 22, and a controller (not shown) again stops the servo motor 75 as a drive source, and again feeds the wire 11 from the storage reel 70. Stop. By repeating the feeding and stopping of the wire 11 from the storage reel 70 as described above, even if the wire 11 having a length exceeding the distance between the proximity sensor 97 and the separation sensor 98 is wound around the storage reel 70, the wire 11 is fed out. In a state where a certain tension is applied to the wire 11, the wire 11 can be fed out sequentially. Since the drive source is the servo motor 75 and the storage reel 70 is detachably attached to the rotating shaft 75a of the servo motor 75, the storage reel 70 is rotated forward and the wire fed from the wire feeder 50 is fed. The servo motor 75 can also be used as a drive source for winding 11. For this reason, it is possible to omit providing another drive source for winding the wire 11 fed from the wire feeder 50 onto the storage reel 70.

  The second coil 13 in this embodiment shows a case where it is wound around the core material 22 in a spiral shape, and all the wire materials 11 stored in the storage reel 70 are wound around the core material 22. The case where the 2nd coil 13 wound by the predetermined number of times in the state is obtained is shown. Then, the end portion of the wire 11 that is finally detached from the slit 70d (FIG. 11) of the storage reel 70 becomes the lead portion 16 that extends in the radial direction from the outer periphery of the second coil 13 shown in FIG. 19B. Then, after the second coil 13 is obtained, the length L of the core member 22 between the first and second rotating bodies 23 and 24 is once slightly reduced by the interval variable mechanism 41 and then the original length again. By returning to the above, the second coil 13 is brought into close contact with the first coil 12, thereby increasing the space factor of the wire 11. In this state, the hot air generator (not shown) heats the wire 11 to increase the space factor. The wires 11 that are raised and are in close contact with each other are fused together. Thereby, the coil 10 shown in FIG. 19 is formed in which the first coil 12 made of a plurality of layers of the wire 11 and the second coil 13 made of the wire 11 wound in a spiral shape are connected by the inner connecting wire 14. The

  Thus, in the present invention, after the first coil 12 is formed, the winding jig 21 is rotationally driven in a state where the storage reel 70 is removed from the winding jig 21, and the storage reel 70 is released. Since the second coil 13 is formed by winding the wire 11 that is fed out, the number of turns of the second coil 13 can be freely adjusted by changing and adjusting the number of rotations of the winding jig 21. . Therefore, not only the first coil 12 but also the number of turns of the second coil 13 connected to the first coil 12 by the inner connecting wire 14 can be easily changed and adjusted.

  As described above, the second coil 13 is obtained, the second coil 13 is brought into close contact with the first coil 12 and fused, and the first coil 12 and the second coil 13 are connected by the inner connecting wire 14. After the coil 10 shown in FIG. 9 is formed, as shown in FIG. 9, the core member 22 protruding from one end side of the first rotating body 23 and having the coil 10 formed thereon is moved to the first rotating body 23 by the mobile device 31. The coil 10 is forcibly detached from the winding jig 21. As a result, a series of coil windings are terminated, and the next coil winding is started again from the above-described storage step. If it does in this way, it will become possible to obtain continuously the coil 10 which raised the space factor of the wire 11. FIG.

  In the above-described embodiment, the nozzle moving mechanism 52 and the movable table moving mechanism 78 configured by the combination of the X-axis, Y-axis, and Z-axis direction extendable actuators have been described. However, these moving mechanisms have this structure. The present invention is not limited to this, and other types may be used as long as the nozzle 51 and the movable base 77 can move in the three-axis directions with respect to the gantry 19.

  In the above-described embodiment, in the formation of the first layer winding 12 a of the first coil 12, the interval variable mechanism 41 causes the first variable winding mechanism 41 to perform the first rotation every time the core material 22 rotates once and the wire 11 is wound once. Although the case where the length L of the core material 22 between the first and second rotating bodies 23 and 24 is expanded by an amount equal to the wire diameter of the wire material 11 has been described, only the nozzle 51 is moved by the nozzle moving mechanism 52. If so-called aligned winding is possible, the total length of the first coil 12 to be obtained from the beginning or the length L of the core material 22 between the first and second rotating bodies 23 and 24 by the interval variable mechanism 41 or The length may be adjusted to a slightly larger length and the winding may be started from that state.

  In the above-described embodiment, as shown in FIG. 4, the movement restriction cylinder 93 moves the storage reel 70 by the fluid pressure cylinder 92 in a state where the storage reel 70 is separated from the winding jig 21. Although the case where prohibition is possible has been described, the movement restricting cylinder 93 moves the storage reel 70 by the fluid pressure cylinder 92 with the storage reel 70 approaching the winding jig 21 as shown in FIG. May be configured to be prohibited.

  In the above-described embodiment, the first coil 12 in which the wire 11 is spirally wound and provided in a plurality of layers in the radial direction of the wire, and the wire 11 is spirally wound. Although it demonstrated using the coil 10 provided with the rotated 2nd coil 13, the wire 11 was wound around the 1st coil 12, and the 2nd coil 13 was made into the helical form in the 2nd coil 13. The wound winding may be provided over a plurality of layers in the radial direction of the winding. Moreover, both the 1st coil 12 and the 2nd coil 13 may consist of the wire 11 wound by the spiral shape, and both the 1st coil 12 and the 2nd coil 13 have the wire 11 spiral. The winding wound in a shape may be provided over a plurality of layers in the radial direction of the winding.

  In the above-described embodiment, the tension device 53 in the wire feeding mechanism 50 applies a certain tension to the wire 11 by the spring 66, and the storage reel 70 is moved by the fluid pressure cylinder 92. Although the case where a certain tension is applied to the wire 11 fed from 70 has been described, although not shown, the tension device 53 in the wire feeding mechanism 50 moves the drum 62 to apply a certain tension to the wire 11. A pressure cylinder may be provided, and the storage reel 70 may be moved by a spring so that a constant tension is applied to the wire 11 fed from the storage reel 70.

  Moreover, in embodiment mentioned above, although demonstrated using the wire 11 which a cross section forms a square, the wire 11 may be what is called a round wire whose cross section forms a circle.

  Furthermore, in the above-described embodiment, the fluid pressure cylinder 92 that moves the slider 92a by compressed air that is a gas adjusted to a predetermined pressure has been described. However, the fluid pressure cylinder is a slider that uses a liquid such as hydraulic pressure or water pressure. It may be something that moves.

DESCRIPTION OF SYMBOLS 11 Wire rod 20 Coil winding apparatus 21 Winding jig 50 Wire rod feeder 70 Storage reel 71 Connection mechanism 75 Servo motor (drive source)
91 Tension applying device 92 Fluid pressure cylinder

Claims (3)

A wire feeder (50) for feeding the wire (11) through the nozzle (51 ) with a constant tension;
A wire rod (11) fed from the nozzle (51) is wound around the wire reel (70) by rotating the wire reel (70) to which the wire reel (70) is detachably configured . a driving source to form a蓄線I Removing and (75),
A winding jig (21) for rotating and winding the wire (11) fed from the nozzle (51) or the wire (11) unwound from the storage of the storage reel (70);
When the winding jig (21) winds the wire (11) fed from the nozzle (51), the storage reel (70) removed from the drive source (75) is used as the winding jig. A coupling mechanism (71) fixed to (21) and rotated together with the winding jig (21);
The drive source to which the storage reel (70) is attached when the winding jig (21) winds up the wire (11) unwound from the storage of the storage reel (70) 75) is urged together with the storage reel (70) in a direction away from the winding jig (21) to apply a certain tension to the wire rod (11) fed out from the storage reel (70). With hydraulic cylinder (92)
Coil winding apparatus equipped with. When the storage reel (70) approaches the winding jig (21), the wire rod (11) is fed out from the storage reel (70), and the storage reel (70) is moved to the winding jig (21). The coil winding device according to claim 1, further comprising a control device for controlling the drive source (75) so as to prohibit the feeding of the wire rod (11) from the storage reel (70) when separated from the storage reel. A coil winding method using the coil winding apparatus according to claim 1 or 2,
The wire rod (11) fed from the wire rod feeding machine (50) is wound around a storage reel (70), and the winding jig (21) is rotated together with the storage reel (70) to rotate the wire rod feeding machine ( 50) is wound around the winding jig (21) to form the first coil (12), and then the storage reel (70) from the winding jig (21) With the wire removed, the winding jig (21) is rotationally driven to unwind the wire rod (11) unwound from the storage reel (70) and wind it around the winding jig (21). Forming two coils (13) ,
In the formation of the first coil (12), a constant tension is applied to the wire rod (11) fed from the wire rod feeder (50) in the wire rod feeder (50),
In the formation of the second coil (13), the storage reel is biased in a direction to separate the storage reel (70) removed from the winding jig (21) from the winding jig (21). A coil winding method comprising applying a certain tension to the wire (11) fed from (70).

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