JP2013105795A - Winding device and winding method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a winding device which manufactures a coil in which wire rod waste is not generated in line adjustment by adjusting length of the coil start end.SOLUTION: A wire rod 50 is supplied from a supply mechanism to a rotatably provided bobbin 22. To the circumference of the bobbin 22, a start end clamp 23 is rotatably provided coaxially with the bobbin to hold the start end of the wire rod 50. The bobbin 22, the supply mechanism, and the start end clamp 23 are driven by a drive mechanism. Before starting winding, the start end clamp 23 is fixed to rotate only the bobbin 22, and a position of the start end clamp 23 to a winding start position of the wire rod 50 is relatively changed. After that, the position of the start end clamp 23 to the winding start position is fixed, the bobbin 22 and the start end clamp 23 are rotated, and the wire rod 50 is wound around the bobbin 22.

Description

  Embodiments described herein relate generally to a winding apparatus and a winding method for manufacturing a coil.

  In a turbine generator or the like, a stator coil is used. The stator coil includes a stator and a coil, and is configured by inserting and connecting the start and end of the coil into slots of the stator corresponding to the number of poles of the electric motor. The coil is formed by winding a wire in a spiral shape, and various proposals have conventionally been made as a winding device for manufacturing the coil.

  For example, Patent Literature 1 proposes a winding device that can prevent the generation of wire scraps associated with coil manufacture. In this apparatus, a columnar winding frame is attached to the rotating member. A longitudinal groove is provided at the leading end of the winding frame. The starting end of the wire is introduced into the groove, and the rotating member is rotated to wind the wire.

  Here, by performing the preliminary winding operation by controlling the supply amount of the wire to be smaller than the necessary amount, the starting end inserted into the groove starts to slide and is shortened to a desired amount. Thereby, the operation | work which cut | disconnects the excessive wire rod of the starting end of a coil becomes unnecessary, and generation | occurrence | production of the wire scraps which arise by cutting | disconnection can be prevented.

Japanese Patent Laid-Open No. 10-304627

  By the way, when the manufactured coil is inserted into each slot of the stator, the length required for the start and end of each coil differs depending on the slot position of the stator and the position of the wire to be connected to other coils. come. Here, in the winding device described in Patent Document 1, the length of the coil end can be adjusted to some extent by the cut position of the end.

  On the other hand, the length of the coil start end is determined by the amount of wire sliding out of the groove. Therefore, the length can be changed only within the range of the length of the groove, and it is not easy to adjust the amount of sliding out by the wire supply amount. That is, the coil manufactured by the winding device described in Patent Document 1 needs to cut off an excessive start end in order to correspond to different lengths when inserting the coil into the stator and adjusting the line. The problem is that wire scraps are generated.

  The present invention has been made to solve the above-described problems. The purpose of the present invention is to provide a winding device for manufacturing a coil in which wire scraps are not generated when a coil is inserted into a stator and straightened by enabling adjustment of the length of the starting end of the coil. And

In order to achieve the object, the winding device of the present invention has the following configurations (a) to (e).
(A) a rotatable winding frame (b) a supply mechanism for supplying a wire to the winding frame (c) a winding mechanism for rotating the winding frame and winding the wire around the winding frame (d) A starting end clamp that is provided on the outer periphery in the circumferential direction of the winding frame so as to be rotatable coaxially with the winding frame and grips a starting end of a wire wound around the winding frame (e) the supply mechanism, the winding mechanism, And a drive mechanism for driving the start end clamp. (F) A position change mechanism provided in the winding mechanism for changing the position of the start end clamp relative to the winding start position of the wire rod in the winding frame.

It is a front perspective view of the winding device of an embodiment. (A) is an enlarged perspective view of the start end clamp 23. FIG. FIG. 2B is an enlarged perspective view of the clamp stopper 25. FIG. It is a back perspective view of a winding device. The top view of a winding apparatus shows the state which wound the wire. It is a flowchart which shows the wire start end delivery process of embodiment. It is a front schematic diagram of the coil | winding part 2 and the wire supply part 3 in a wire start end delivery process. It is a plane schematic diagram of the coil | winding part 2 and the wire supply part 3 in a wire start end delivery process. It is a flowchart which shows the coil starting end length adjustment process of embodiment. It is a front schematic diagram of the coil | winding part 2 and the wire supply part 3 in a coil start end length adjustment process. It is a plane schematic diagram of the coil | winding part 2 and the wire supply part 3 in a coil start end length adjustment process. It is a flowchart which shows the coil termination | terminus length adjustment process of embodiment. It is a front schematic diagram of the coil | winding part 2 and the wire supply part 3 in a coil termination | terminus length adjustment process. It is a plane schematic diagram of the coil | winding part 2 and the wire supply part 3 in a coil termination | terminus length adjustment process.

  Hereinafter, the present embodiment will be described in detail with reference to the drawings.

(1. Configuration of the embodiment)
First, the structure of the winding apparatus of this embodiment is demonstrated with reference to FIGS. In each figure, three axes X, Y, and Z orthogonal to each other are set, and the X axis extends in the apparatus width direction, the Y axis extends in the apparatus longitudinal direction, and the Z axis extends in the apparatus height direction.

(1-1. Overall configuration)
As shown in FIG. 1, the winding device includes a winding portion 2 that forms a coil by winding a wire around a gantry 1, a wire supply portion 3 that supplies a wire to the winding portion 2, and a winding portion 2. And the drive part 4 which drives and controls the wire supply part 3 is installed.
Hereinafter, the configuration of each part will be described in detail.

(1-2. Configuration of winding part)
The winding part 2 is roughly composed of the following.
(A) A reel member 22 around which a wire is wound
(B) Start end clamp 23 for gripping the start end of the wire supplied from the wire supply unit 3
(C) Winding mechanism comprising a disk 21 or the like and winding a wire around the reel member 22 to form a coil. Note that the winding mechanism relatively changes the positions of the reel member 22 and the start end clamp 23. A position change mechanism is also provided.

  The reel member 22 protrudes from the surface of the disk 21. The disk 21 is connected to a rotating shaft 29 that passes through the center of the disk surface and is orthogonal to the disk surface, and is rotatable. The reel member 22 is composed of a pair of reels of a first reel 22a and a second reel 22b. The first winding frame 22a and the second winding frame 22b are quadrangular prisms, and project from the disk surface so as to extend in the Y-axis direction. Both reels face each other at an equal distance from the circle center O of the disk surface.

  The first winding frame 22a and the second winding frame 22b have a rectangular cross section. In the present embodiment, the two short surfaces of each reel are defined as side surfaces, the long surfaces facing each other are defined as bottom surfaces, and the long surface opposite to the bottom surface is defined as the top surface. The top surface is chamfered.

  The wire is wound so as to be spanned from the side surface to the top surface between the respective winding frames. The formed coil has a substantially rectangular cross section in the transverse direction.

  The first reel 22a has the same dimensions from the base on the disk surface side to the tip. In contrast, the second winding frame 22b has a shape in which the side surface expands from the base on the disk surface side toward the tip, and the thickness increases as a whole. This is to obtain a coil in which wires are arranged in an orderly and high density when the coils removed after winding are bundled together.

  The first winding frame 22 a and the second winding frame 22 b are attached to the disk 21 via the guide rail 26. The guide rails 26 are a pair of rails laid on the surface of the disk 21, and each extend parallel to a vertical line passing through the center O of the disk surface. The bases of the first winding frame 22a and the second winding frame 22b are mounted on the guide rails 26, respectively. In the present embodiment, the first winding frame 22a is configured to be movable on the guide rail 26 in the Z-axis direction. This movement is normally suppressed by a reel brake 28 provided on the disk surface. The reel brake 28 can be released by the opening / closing mechanism 27.

  A ring-shaped rail 24 is provided on the outer periphery of the disk 21 so as to surround the reel member 22. The start end clamp 23 is installed so that it can run on this rail. As shown in FIG. 2A, a grip portion 23 a is provided on the front side of the start end clamp 23. The gripping part 23 a grips the starting end of the wire supplied from the wire supply part 3. A fitting hole 23b and an engaging portion 23c are provided on the back side. The portion provided with the insertion hole 23b protrudes outward in the circumferential direction from the outer peripheral portion of the disk.

  The engaging portion 23 c is a concave member that engages with the rail 24. The engaging portion 23c is constituted by, for example, a spring-type clamp that is clamp-driven by an urging force of a compression spring, and controls the spring force by taking in and out air. In the state in which the air is extracted, the spring force is urged to the rail 24, and the start end clamp 23 is fixedly held on the rail 24 by the frictional force generated between the engaging portion 23 c and the rail 24. On the other hand, the spring is released in the air-filled state, and the start end clamp 23 can run on the rail 24.

  A clamp stopper 25 is provided in the vicinity of the outer peripheral portion of the disk 21. As shown in FIG. 2B, the clamp stopper 25 is an L-shaped support, and includes a bottom surface placed on the gantry 1 and a vertical surface standing vertically from the gantry 1. A pin 25a extending at a right angle to the vertical surface is provided at the end of the vertical surface. The pin 25a is expanded and contracted in the Y-axis direction by a pneumatic operation mechanism (not shown). When the start end clamp 23 is at a position where it intersects the horizontal line passing through the center O of the disk 21, when the pin 25a is extended in the Y-axis direction, the pin 25a is inserted into the insertion hole 23b of the start end clamp 23.

(1-3. Configuration of wire supply unit)
The wire supply unit 3 includes a clamp cut member 31, a wire feed roller 33, and a tension mechanism 32. The entire wire supply unit 3 is installed on the Y-axis guide 35. The Y-axis guide 35 includes a rail 35a extending in the Y-axis direction and a motor 35b, and moves the wire supply unit 3 in the Y-axis direction.

  On the Y-axis guide 35, the clamp cut member 31, the wire feed roller 33, and the tension mechanism 32 are arranged at a horizontal position from the circle center O of the disk 21 from the side closer to the winding part 2. The tension mechanism 32 and the wire feed roller 33 support and carry the wire fed from a feeding device (not shown), and deliver it to the clamp cut member 31.

  The clamp cut member 31 includes a clamp cutter 31a, a front / rear mechanism 31b, and a roller 31c. The clamp cutter 31a has both a gripping mechanism for gripping the wire and a cutter for cutting the wire. The front-rear mechanism 31b is a mechanism that moves the clamp cutter 31a in the Y-axis direction by a small amount, and retracts the clamp cutter 31a from the wire supply line so that the clamp cutter 31a does not damage the wire during winding. The roller 31 c supports a wire supplied to the winding part 2.

  The clamp cut member 31 is provided on the X-axis guide 34. The X-axis guide 34 includes a rail 34a extending in the X-axis direction and a motor 34b, and moves the clamp cut member 31 in the X-axis direction.

(1-4. Configuration of Drive Unit)
The drive unit 4 includes a drive mechanism that drives the winding unit 2 and the wire supply unit 3 and a control device 47 that controls the drive mechanism.

  First, the drive mechanism will be described. The rotation support mechanism 41 is provided on the back side of the disk 21 and rotates the rotation shaft 29. The rotational force is transmitted from the servo motor 42 to the rotation support mechanism 41 through the drive pulley 43, the timing belt 44, and the driven pulley 45. The servo motor 42 can appropriately control the rotation amount and speed of the rotation support mechanism 41. By controlling the rotation support mechanism 41, the amount of rotation of the reel member 22 can be controlled, and the amount of winding of the coil can be set.

  Although not shown, the drive unit 4 includes an air pressure supply mechanism. The start end clamp 23, the clamp cutter 31a, the clamp stopper 25, the opening / closing mechanism 27, and the reel brake 28 are driven by this air pressure supply mechanism. The air pressure is supplied to each member via the rotation support mechanism 41 by the rotary joint 46 engaged with the driven pulley 45. Thereby, even if the disk 21 rotates, air pressure can be supplied to each member.

  The control device 47 is provided in the gantry 1. The control device 47 includes a programmable logic controller (PLC) having an input / output interface with each device and a touch screen panel which is a man-machine interface. The control device 47 performs start / stop commands for the winding device, various parameter settings, and the like. The control device 47 may be a normal computer having a CPU, a storage unit, an interface, a display unit, an input unit, a mechanism control unit, a communication unit, and the like in addition to a combination of a PLC and a touch screen panel. The control device 47 has a function of controlling the driving mechanism, a function of setting various parameters by a display unit and an input unit, and the like as functions performed by the CPU based on a program.

  For example, the control device 47 controls the rotation amount of the servo motor 42 according to the rotation speed of the winding frame member 22 calculated according to the winding amount of the coil. Although not shown in the figure, motor drive power and control power for the control device 47 are appropriately supplied by an external device or the like.

(2. Operation of this embodiment)
Next, the operation of the embodiment of the present invention will be described with reference to FIGS.
The process of forming a coil with the winding device of this embodiment is roughly divided into the following three processes.
(1) Wire start end delivery (2) Coil start end length adjustment (winding start)
(3) Coil end length adjustment (end of winding)
Hereinafter, each step will be described in detail.

(2-1. Wire start-end delivery)
FIG. 5 shows a flowchart of the wire start-end delivery process from the wire supply unit 3 to the winding unit 2. Furthermore, in FIG.6 and FIG.7, the positional relationship of the coil | winding part 2 and the wire supply part 3 in this process is shown typically. In FIG. 7, the reel member 22 is illustrated only in (a), and is not illustrated in (b) to (e).

(Step S01: FIG. 6 (a), FIG. 7 (a))
The wire 50 fed out from a feeding device (not shown) is transported by the tension mechanism 32 and the wire guide 23, and its starting end is gripped by the clamp cutter 31 a of the clamp cut member 31. As shown in FIG. 7A, the start end clamp 23 is fixedly held on the rail 24 of the disk 21 by driving the engaging portion 21c, and is located at (X1, Y2). The clamp cutter 31a is located at (X1, Y1). Further, the first winding frame 22 a and the second winding frame 22 b are located on a vertical line orthogonal to the circle center O of the disk 21.

(Step S02: FIG. 6B, FIGS. 7B to 7D)
The clamp cut member 31 that holds the starting end of the wire 50 is moved as shown in the following (a) to (c). The movement is made by the Y-axis guide 35 and the X-axis guide 34.
(A) Moves away from the disk surface of the disk 21 in the Y-axis direction, and stops at the position (X2, Y1) (FIG. 7B).
(B) Moves in the X-axis direction so as to approach the circle center O of the disk 21, and stops at the position (X2, Y3) (FIG. 7 (c)).
(C) It moves so that it may approach the disk surface of the disk 21 in a Y-axis direction, and stops at the position of (X1, Y3) (FIG.7 (d)).

  Due to the above movement, it moves so as to straddle the start end clamp 23 and approaches the circle center O of the disk 21. As a result of this movement, as shown in FIG. 6B, the wire 50 held by the clamp cut member 31 is inserted into the holding portion 23 a of the start end clamp 23.

(Step S03: FIG. 6B, FIG. 7D)
Here, by driving the gripping portion 23a, the wire 50 is gripped by the start end clamp 23. At the same time, the clamp cutter 31 a of the clamp cut member 31 is released to release the wire 50 from the clamp cut member 31. As a result, the start end of the wire 50 is transferred from the clamp cut member 31 to the start end clamp 23.

(Step S04: FIG. 6 (c), FIG. 7 (e))
The movements in steps S02 (a) to (c) are performed in the reverse order. That is, the clamp cut member moves in a direction away from the circle center O of the disk 21 so as to straddle the start end clamp 23. Thereby, the clamp cut member 31 returns to the delivery process start position (X1, Y1), and the delivery process is completed. The clamp cutter 31 a of the clamp cut member 31 is moved in the Y-axis direction by the front-rear mechanism 31 b and retracted so as not to contact the wire 50.

(2-3. Coil start length adjustment (winding start))
FIG. 8 shows a flowchart of a process of starting winding by adjusting the length of the portion to be the starting end of the coil. Furthermore, in FIG.9 and FIG.10, the positional relationship of the coil | winding part 2 and the wire supply part 3 in this process is shown typically. As described above, the reel 22b has a shape that increases in thickness from the base portion to the tip, and therefore does not have the same shape as the reel 22a when viewed from the front and the plane. In FIG. 10, they are displayed in the same shape.

(Step S05)
The clamp stopper 25 is driven, the pin 25a is extended and inserted into the insertion hole 23b of the start end clamp 23. Thereby, the start end clamp 23 is locked to the clamp stopper 25. Subsequently, the engaging portion 23c of the start end clamp 23 is released, and the fixed holding to the rail 24 is released.

(Step S06: FIG. 9 (a), FIG. 10 (a))
The servo motor 42 is driven and the rotation support mechanism 41 is rotated. The rotation is transmitted to the disk 21 via the rotation shaft 29. As described above, the start end clamp 23 is released from being fixed to the rail 24 and is locked by the clamp stopper 25. Therefore, the rail 24 only slides within the engaging portion 23c of the start end clamp 23, and the start end clamp 23 does not rotate. As shown in FIG. 9A, only the reel member 22 rotates and stops at a position rotated by an angle α from the original position on the vertical line of the circle center O. As a result, the position of the start end clamp 23 relative to the reel member 22 is changed relatively.

(Step S07)
The engagement portion 23 c of the start end clamp 23 is driven again, and the start end clamp 23 is engaged and fixed to the rail 24. Subsequently, the pin 25 a of the clamp stopper 25 is pulled out from the insertion hole 23 b of the start end clamp 23. As a result, the start end clamp 23 is released from the rotation restrained state and becomes rotatable with the reel member 22. Furthermore, the position with respect to the reel member 22 changed in step S06 is fixed.

(Step S08: FIG. 9B, FIG. 10B)
Servo motor 42 is driven again to start winding. As the disk 21 rotates, the start end clamp 23 moves in the circumferential direction. By this movement, the wire 50 whose starting end is gripped by the starting end clamp 23 is pulled out, and contacts the chamfered corner of the top surface of the winding frame 22b. This contact position becomes the winding start position of the wire 50. When the rotation is further advanced thereafter, the wire 50 is wound so as to be spanned from the top surface to the side surface of the winding frame 22b and from the side surface of the winding frame 22a to the top surface, as shown in FIG. 9B. A portion of the wire 50 from the start end clamp 23 to the winding start position is the coil start end L1.

As shown in FIG. 9C, the length of the coil start end L <b> 1 is the distance from the winding start position to the start end clamp 23. This distance is determined by the following two factors.
(A) Winding start position: As shown in FIG. 9C, when viewed from the rotation direction of the winding frame member 22, the corners entering the top surface from the respective side surfaces of the winding frames 22a and 22b, and from the top surface to the side surface The range of the longest and shortest lengths of the start end L1 is determined depending on which of the entering corners is the winding start position.
(B) Position of the start end clamp 23: By changing the start end clamp 23 with respect to the winding start position, the length of the coil start end L1 is determined within the range of the length of the start end L1 defined in (a). The

  The elements (a) and (b) are determined according to the required length of the coil start end L1, and the rotation angle α of the winding frame member 22 is calculated from these elements. By setting the rotation angle α in the control device 47 in advance, the length of the coil start end L1 can be adjusted to a desired length.

(2-4. Adjustment of coil end length (end of winding))
FIG. 11 shows a flowchart of the process of adjusting and cutting the coil end length after the end of winding. Furthermore, in FIG.12 and FIG.13, the positional relationship of the coil | winding part 2 and the wire supply part 3 in this process is shown typically. In FIG. 12 and FIG. 13 as well, for convenience of explanation, the first winding frame 22a and the second winding frame 22b are illustrated in the same shape.

(Step S09: FIG. 12 (a), FIG. 13 (a))
As the wire 50 is wound around the winding frame member 22, the wire supply unit 3 moves in the Y-axis direction so as to move away from the disk surface of the disk 21. Thereby, as shown in FIG. 13A, the wire 50 is wound around the winding frame member 22 in a spiral shape without overlapping to form a coil.

  The winding ends by stopping the servo motor 42 and the Y-axis guide 35 that moves the wire supply unit 3. As shown in FIG. 12A, the wire 50 wound around the reel member 22 is separated from the reel member 22 at the corner of the reel 22b. The position where the wire 50 leaves is the winding end position of the wire.

  The length from the winding end position to the roller 31 c of the cut clamp member 31 varies depending on the stop position of the winding frame member 22. The stop position of the reel member 22 can be changed by the rotation angle of the reel member 22.

For example, in FIG. 12A, the stop position of the reel member 22 is a position rotated by an angle β from the vertical line of the circle center O. The rotation angle θ of the winding frame member 22 from the start to the end of winding for stopping the winding frame member 22 at this position is obtained by the following equation.
θ (deg.) = 360 × N (number of rotations) + β

(Step S10: FIG. 12 (b), FIG. 13 (b))
At the end of winding, as shown in FIG. 13A, the clamp cut member 31 is moved to the position (X3, Y1) by the Y-axis guide 35. The clamp cut member 31 is moved in the X-axis direction by the X-axis guide 34 so as to approach the circle center O of the disk 21. The roller 31c of the clamp cut member 31 moves while handling the wire 50 supported therebetween. The clamp cut member 31 stops at the position (X3, Y2).

(Step S11: FIG. 12 (c), FIG. 13 (c))
The front-rear mechanism 31b is driven, and the wire 50 is inserted into the clamp cutter 31a of the clamp cut member 31 that has been retracted. The clamp cutter 31a is driven and the wire 50 is cut. The end of the cut wire 50 on the wire supply unit 3 side is held by the clamp cutter 31a and becomes the start end of the coil to be formed next.

  A portion of the wire 50 from the winding end position in the winding frame member 22 to the cutting position is the coil end L2. The length of the coil end L2 varies depending on the stop position of the winding frame member 22 in the above-described step S09. In other words, by changing the position of the clamp cut member 31 relative to the winding end position in the winding frame member 22, the length of the coil end L2 can be adjusted, and a desired length can be obtained.

Thereafter, the wire supply unit 3 holding the starting end of the next coil moves in the X-axis direction away from the circle center O of the disk 21 and retracts to a position that does not interfere with the removal of the completed coil. Then, the reel brake 28 is released by the opening / closing mechanism 27, the first reel 22 a is moved toward the second reel 22 b, and the operator removes the coil from the reel member 22.

(3. Effects of the present embodiment)
According to the embodiment described above, the following effects can be obtained.
(1) The length of the coil start end L1 can be changed by rotating the reel member 22 while maintaining the position of the start end clamp 23 before starting the winding. That is, the length of the starting end can be adjusted by relatively changing the position of the starting end clamp 23 relative to the winding start position of the wire 50 in the winding frame member 22. Since the rotation angle of the reel member 22 can be set in advance, the starting end length can be easily adjusted. Even when coils with different starting lengths are manufactured with a single winding device, such coils can be automatically manufactured by programming the rotation angle of the winding frame member 22 required for each coil. . The work efficiency is improved because there is no need to change the reel or manually adjust the reel. Furthermore, the coil whose start end length is appropriately changed as described above can prevent generation of wire scraps when the coil is inserted into the stator for straightening. Thereby, work efficiency can be improved and the wasteful consumption of a wire and the cost of disposal of wire waste can be reduced.

(2) Furthermore, the length of the coil end L2 can be changed by changing the stop position of the winding frame member 22 at the end of the winding. That is, the end length can be adjusted by relatively changing the position of the start end clamp 23 relative to the end position of the wire 50 in the winding frame member 22. The end length can be adjusted to some extent by moving the clamp cutter 31a in the X-axis direction. However, changing the stop position of the reel member 22 only changes the setting of the amount of rotation of the reel member, so that the end can be adjusted more easily and in a wider range. Similar to the coil start end length L1, by programming in advance, coils having different start end lengths can be easily manufactured with one winding device.

(4. Other embodiments)
The present invention is not limited to the illustrated embodiment, and includes other embodiments as described below.
(1) In the embodiment described above, in the embodiment, the ring-shaped rail 24 is provided on the outer peripheral portion of the disk 21 provided with the reel member 22, and the start end clamp 23 is engaged with the rail 24. However, instead of this configuration, a starting end clamp 23 may be provided on the outer peripheral portion of a rotating body separate from the disc 21a, for example, a disc having a diameter larger than that of the disc 21a. In that case, the small-diameter disk 21a and the large-diameter disk may be overlapped, an engagement member for engaging these two disks may be provided, and the two may be switched so as to rotate integrally or separately.

(2) In the above embodiment, the mechanism for changing the relative position of the winding frame member 22 and the starting end clamp 23 by combining the rotation of the disk and the engagement / position holding of the starting end clamp is described. A drive mechanism such as a motor or a gear can be provided for each of the start end clamps 23. For example, similarly to the above (1), the start end clamp 23 is provided on the outer peripheral portion of a rotating body separate from the disk 21a, for example, a disk having a larger diameter than the disk 21a. A tooth portion is provided on the outer periphery of the large-diameter disk to form a gear shape, and another disk connected to the motor is engaged with the disk. At the beginning of winding of the wire 50, the reel member 22 or the start end clamp 23 may be moved by the drive mechanism, and then rotated synchronously by the respective drive mechanisms, or both may be integrated by the brake mechanism. You may rotate both later with either drive mechanism.

(3) In the said embodiment, although the square pillar whose cross section was a rectangle was used as a winding frame, the shape of a winding frame is not limited to this. Depending on the winding shape of the coil to be manufactured, a rectangular cross-section, other polygonal shape or oval shape can be used. However, a true circular shape is not suitable because it is difficult to specify the winding start position of the wire.

(4) The reel member 22 does not necessarily need to be made of a two-divided reel. The number of divisions is arbitrary, and when a plurality of frames appearing on the inner and outer circumferences are formed around one rotating column and the wound winding is removed, these frames are pulled into the column and wound. Those that reduce the diameter of the frame can also be used.

(5) The present invention is not limited to the above-described embodiment as it is, and can be embodied by modifying the constituent elements without departing from the scope of the invention in the implementation stage. In addition, various inventions can be formed by appropriately combining a plurality of components disclosed in the embodiment. For example, some components may be deleted from all the components shown in the embodiment. Furthermore, constituent elements over different embodiments may be appropriately combined.

DESCRIPTION OF SYMBOLS 1 Base 2 Winding part 3 Wire supply part 4 Drive part 21 Disk 22 Winding frame member 22a 1st winding frame 22b 2nd winding frame 23 Starting end clamp 23a Grasp part 23b Insertion hole 23c Engagement part 24 Rail 25 Clamp stopper 25a Pin 26 Guide rail 27 Opening / closing mechanism 28 Reel brake 29 Rotating shaft 31 Clamp cut member 31a Clamp cutter 31b Front / rear mechanism 31c Roller 32 Tension mechanism 33 Wire feed roller 34 X-axis guide 35 Y-axis guide 41 Rotation support mechanism 42 Servo motor 43 Drive Pulley 44 timing belt 45 driven pulley 46 rotary joint 47 controller 50 wire

Claims (7)

A reel provided rotatably,
A supply mechanism for supplying a wire to the reel;
A winding mechanism for rotating the winding frame and winding the wire around the winding frame;
A start end clamp that is provided on the outer periphery in the circumferential direction of the winding frame so as to be rotatable coaxially with the winding frame, and grips a starting end of a wire wound around the winding frame;
A drive mechanism for driving the supply mechanism, the winding mechanism, and the start end clamp;
The said winding mechanism is provided with the position change mechanism which changes relatively the position of the said start end clamp with respect to the winding start position of the said wire in the said winding frame, The winding apparatus characterized by the above-mentioned. The supply mechanism includes a clamp cutter that grasps a starting end of the wire rod, passes it to the start end clamp, and cuts a terminal end of the wire rod wound around the winding frame,
The winding device according to claim 1, wherein the position changing mechanism changes the position of the clamp cutter relative to the winding end position of the wire in the winding frame. The position changing mechanism is
A disk provided rotatably,
A ring-shaped rail provided on the outer periphery of the disk,
A reel is provided on the surface of the disk,
The winding device according to claim 1 or 2, wherein the starting end clamp is provided so as to be movable along the ring-shaped rail and to be fixed at a predetermined position of the rail. The position changing mechanism is
A disk provided rotatably,
A rotating body provided on the outer periphery of the disk,
A reel is provided on the surface of the disk,
The starting end clamp is provided on the outer periphery of the rotating body,
The winding device according to claim 1 or 2, wherein the disk and the rotating body are rotatably provided integrally or separately. The position changing mechanism is
A disk provided rotatably,
A rotating body provided on the outer periphery of the disk,
A reel is provided on the surface of the disk,
The starting end clamp is provided on the outer periphery of the rotating body,
The winding device according to claim 1, further comprising a rotation mechanism provided separately for the disk and the rotating body. In a winding method of winding a wire around a rotatable winding frame,
A step of supplying the wire to a start end clamp that is rotatably provided coaxially with the reel, and gripping the start of the wire;
Changing the position of the start end clamp relative to the winding start position of the wire rod in the winding frame to adjust the start end length of the wire rod; and
Rotating the winding frame and the starting end clamp and winding the wire rod gripped at the starting end by the starting end clamp around the winding frame;
A winding method characterized by comprising: After changing the relative position of the clamp cutter that cuts the end of the wire relative to the winding end position of the wire in the winding frame, the end of the wire is cut by cutting the end of the wire with the clamp cutter. The winding method according to claim 7, further comprising a step of adjusting the length.

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