JP2010010180A - Coil winding method and coil winding device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a coil winding method and a coil winding device which can shape a coil by optionally setting the position and profile of a lead portion extending from a coil portion. <P>SOLUTION: The coil winding method includes: a step of forming a coil portion 101 by winding a wire 2 around a core 3 by using forming pins 41 and 42 projecting retractably from a core flange 13 while the forming pins 41 and 42 are retracted into the core flange 13; and a step of shaping the lead portions 102 and 103 by hooking the wire 2 extending from the coil portion 101 to the forming pins 41 and 42 to bend while the forming pins 41 and 42 are projected from the core flange 13. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a coil winding method and a coil winding apparatus for shaping a lead portion extending from a coil portion.

  In a normal coil, a lead portion at the beginning of winding extends from the inner periphery of the spiral coil portion, and a lead portion at the end of winding extends from the outer periphery of the spiral coil portion.

  On the other hand, in the outer-wound coil, the lead portion that starts winding and the lead portion that ends winding extend from the outer periphery of the spiral coil portion.

Conventionally, as a coil winding apparatus for forming the outer and outer winding coils, there is one disclosed in Patent Document 1.
JP 2001-267171 A

  However, in such a conventional coil winding device, since the lead portion extending from the coil portion extends in the winding direction (tangential direction) of the coil portion, the lead portion corresponds to the substrate when mounting the coil. There is a problem in that it is necessary to perform an operation for shaping into a shape to be performed, and this shaping work takes time.

  The present invention has been made in view of the above problems, and an object of the present invention is to provide a coil winding method and a coil winding device that can be shaped by arbitrarily setting the position and shape of the lead portion extending from the coil portion. To do.

  The present invention relates to a coil winding method for forming a coil portion by winding a wire around a winding core, and using the forming pin protruding so as to protrude and retract from a core flange facing a side portion of the coil portion. A winding process in which the wire is wound around the core flange while the coil is drawn into the core flange to form a coil portion, and the wire extending from the coil portion is hung on the forming pin with the forming pin protruding from the core flange. And a shaping step of shaping the lead portion by bending.

  Further, the present invention is a coil winding apparatus for forming an outer and outer wound coil having a coil part wound with a wire and first and second lead parts made of a wire extending from the outer periphery of the coil part, A spindle that rotates the winding core around the winding center axis, a non-revolving wire supply mechanism that supplies a wire wound around the winding core, a flyer that revolves around the winding center axis, and a winding around the winding core Revolving wire supply mechanism for supplying the wire to be rotated via a flyer, spindle side core flange facing the side of the coil portion wound around the core, and protruding so as to protrude from the spindle side core flange The first and second forming pins and the forming pin moving mechanism for reciprocating the first and second forming pins, and the wire rods on the core while the first and second forming pins are drawn from the core flange. A winding process in which a coil part is formed by winding, and the spindle and flyer are rotated or revolved in a direction opposite to the rotation direction in the winding process with the first and second forming pins protruding from the spindle core flange. The wire extending from the coil part to the non-revolving wire supply mechanism is hung on the first forming pin and bent to shape the first lead part, and the wire extending from the coil part to the revolving wire supply mechanism is hung on the second forming pin. And a shaping step of shaping the second lead portion by bending the second lead portion.

  According to the coil winding method of the present invention, the lead portion can be bent and extended from the coil portion via the forming pin, and the degree of freedom in setting the position and shape of the lead portion is increased. Thereby, when mounting a coil, the operation | work which connects a lead part to a board | substrate is performed efficiently.

  Since the forming pin is reciprocated to protrude from the core flange, the forming pin is moved quickly, the tact time for forming the coil can be shortened, and the productivity can be improved.

  In addition, according to the coil winding device of the present invention, the first and second lead portions can be bent and extended from the coil portion via the first and second forming pins, respectively. The degree of freedom in setting the position and shape of the two lead portions is increased. Thereby, when mounting the outer-wound coil, the operation of connecting the first and second lead portions to the substrate is efficiently performed.

  Since the spindle and flyer are rotated or revolved in the direction opposite to the direction of rotation in the winding process to shape the first lead part and the second lead part simultaneously, the tact time for forming the outer and outer winding coils can be reduced. , Increase productivity.

  Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

  FIG. 1A is a side view of the outer and outer winding coil (coil) 100, and FIG. 1B is a front view of the outer and outer winding coil 100. The outer and outer winding coil 100 has a coil portion 101 in which the wire 2 is wound in a spiral shape, and has a first lead portion 102 and a second lead portion 103 as lead portions made of the wire 2 extending from the coil portion 101. .

  The coil unit 101 includes a first layer winding unit 101a and a second layer winding unit 101b. The first lead portion 102 and the second lead portion 103 are bent from the second layer winding portion 101b of the coil portion 101 and extend from the winding center axis O with an angular difference of 180 ° in the radial direction. It is shaped.

  FIG. 2 is a perspective view showing a schematic configuration of a coil winding device (outer / outer coil winding device) 1 forming the outer / outer winding coil 100, and FIG. 3 is a sectional view of the coil winding device 1.

  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 device 1 includes a core spindle mechanism 11 that rotates the winding core 3 to wind the wire 2, and a flyer rotation that revolves and winds the wire 2 around the winding core 3 via the flyer 55 and the like. And a mechanism 51.

  The core spindle mechanism 11 includes a spindle 12 that rotates while supporting the core 3, and a spindle motor 16 that rotates the spindle 12.

  The spindle 12 includes a disk-shaped spindle-side core flange (core flange) 13 and a columnar spindle shaft 14. The spindle-side core flange 13 and the cylindrical spindle shaft 14 extend coaxially with each other.

  The spindle side core flange 13 constitutes a core flange facing the side portion of the coil portion 101 wound around the core 3.

  The spindle shaft 14 is rotatably supported by a spindle support base 31 via a bearing 32. Thus, the spindle 12 is supported so as to be rotatable about the winding center axis O.

  The spindle support 31 is supported so as to be movable in the Y-axis direction with respect to the gantry 4. The core spindle mechanism 11 includes a ball screw 33 that is screwed to the spindle support base 31 and a spindle support base drive motor 34 that rotationally drives the ball screw 33. When the ball screw 33 is rotated by the spindle support base drive motor 34, the spindle The support 31 is slid to move the spindle 12 in the Y-axis direction.

  The spindle motor 16 is supported on the gantry 4. The rotation of the spindle motor 16 is transmitted to the spindle shaft 14 via the pulley 17, the belt 18 and the pulley 19.

  A spline 15 is formed on the outer periphery of the spindle shaft 14. The pulley 19 is connected to the spindle shaft 14 via the spline 15 so as to be slidable in the direction of the rotation axis. Thereby, even if the spindle shaft 14 moves in the Y-axis direction, the rotation is transmitted from the pulley 19 to the spindle shaft 14.

  The winding core 3 has a cylindrical shape, is supported so as to be movable in the Y-axis direction with respect to the spindle-side winding flange 13 of the spindle 12, and protrudes from the spindle-side winding flange 13 so as to protrude and retract. Yes.

  A key 21 is interposed between the core 3 and the spindle 12, and the key 21 locks the two so that they do not rotate relative to each other.

  A spring 24 is compressed and interposed between the core 3 and the spindle 12. The spring 24 biases the core 3 so as to protrude from the spindle-side core flange 13.

  The winding core 3 has a rod portion 22 extending from the back. The rod portion 22 penetrates the hollow spindle shaft 14 and is provided with a rod flange portion 23 at the protruding end portion.

  A winding core moving cylinder 25 is provided on the gantry 4. The winding core moving cylinder 25 pushes the rod flange 23 by extending and pulls the winding core 3 into the spindle-side winding flange 13.

  The spindle 12 moves first and second forming pins (forming pins) 41 and 42 projecting from the spindle-side core flange 13 so as to protrude and retract, and the first and second forming pins 41 and 42 move in the Y-axis direction. And a forming pin moving mechanism 43.

  The forming pin moving mechanism 43 includes a disk-like rotor 44 to which the base ends of the first and second forming pins 41 and 42 are connected, a roller 45 that is in rolling contact with the rotor 44, and the roller 45 in the Y-axis direction. And a forming pin moving cylinder 46 that moves.

  A plurality of springs 47 are compressed and interposed between the spindle-side core flange 13 and the rotor 44. The rotor 44 urges the rotor 44 to draw the first and second forming pins 41 and 42 into the spindle-side core flange 13.

  When the forming pin moving cylinder 46 moves the roller 45 to the left in FIG. 3, the rotor 44 that is in rolling contact with the roller 45 moves against the spring 47, and the first and second forming pins 41, 42 are moved to the spindle core. It protrudes from the flange 13.

  The flyer rotating mechanism 51 includes a flyer 55 that is supported so as to be revolved (rotated) on the same axis as the winding core 3, and a flyer motor 36 that rotationally drives the flyer 55. The flyer motor 36 is supported on the gantry 4.

  The flyer 55 has a cylindrical shaft portion 56 and an L-shaped arm portion 57.

  A shaft portion 56 of the flyer 55 is rotatably supported on the gantry 4 via a bearing 52. Thus, the flyer 55 is supported so as to be able to revolve around the winding center axis O.

  A cylindrical flyer-side core flange 58 is provided on the revolution axis (winding center axis O) of the flyer 55. The flyer-side core flange 58 is brought into contact with the front end surface of the core 3 and rotates together with the core 3. The flyer-side core flange 58 is rotatably supported on a revolving shaft of the flyer 55 via a bearing 69.

  The flyer side core flange 58 constitutes a core flange facing the side portion of the coil portion 101 wound around the core 3.

  The flyer-side core flange 58 and the spindle-side core flange 13 serve as ridges that guide the wire 2 wound around the core 3 at both sides of the core 3.

  The flyer motor 36 is supported on the gantry 4. The rotation of the flyer motor 36 is transmitted to the shaft portion 56 of the flyer 55 through the pulley 37, the belt 38, and the pulley 39.

  The shaft portion 56 is formed in a hollow cylindrical shape, and a notch 59 is formed at the end thereof.

  As the revolving wire supply mechanism 50 for supplying the wire 2 via the flyer 55, the wire 2 supplied from a wire source (not shown) is passed inside the shaft portion 56, and the wire rod is fed from the notch 59 via the guide pulley 61. 2 is taken out.

  Guide pulleys 62 and 63 are attached to the flyer 55, and a pair of feed rollers 64 are attached to the rotating front ends thereof. The wire 2 is guided around the guide pulleys 62 and 63 and guided through the feed rollers 64. Each feed roller 64 rotates while pinching the wire 2 and applies a predetermined tension to the wire 2.

  As the wire holding mechanism 60 that holds the wire 2, a chuck 65 that holds the wire 2, a chuck cylinder 66 that opens and closes the chuck 65, and a moving device 67 that moves the chuck cylinder 66 in the X-axis direction are provided.

  As the non-revolving wire rod supply mechanism 70 for supplying the wire rod 2, a clamp 75 that clamps the wire rod 2, a clamp cylinder 76 that opens and closes the clamp 75, and a mobile device that moves the clamp cylinder 76 in the rotational radius direction of the core 3. 77 and a moving device 78 that moves the moving device 77 in the direction of the rotation axis of the core 3. The moving machine 77 pulls in and stores the wire 2 supplied from the revolving wire supply mechanism 50 by moving the clamp cylinder 76 in the Z-axis direction. The moving machine 78 moves the clamp cylinder 76 in the Y-axis direction.

  The mobile units 67, 77, and 78 are configured by a ball screw that is rotationally driven by a servo motor, and a follower that is screwed into the ball screw to move in parallel.

  The controller (not shown) operates the servo motors of the mobile units 67, 77, 78, the spindle motor 16, the chuck cylinder 66, the winding core moving cylinder 25, the spindle support drive motor 34, the flyer motor 36, the forming pin moving cylinder 46, and the like. The outer and outer winding coils 100 are automatically formed by winding the wire 2 around the core 3.

  The coil winding device 1 is configured as described above, and forms the outer and outer winding coil 100 by winding the wire 2 around the winding core 3 in the following procedure.

  (1). As shown in FIG. 4A, the clamp 75 is lowered as indicated by an arrow in the drawing in a state where the tip end portion of the wire 2 drawn out from each feed roller 64 is held by the chuck 65, and the clamp 75 The tip part of the wire 2 is clamped. Thereafter, the chuck 65 is opened and the moving device 67 is operated to move the chuck 65 to the retracted position.

  (2). As shown in FIG. 4B, the clamp 75 holding the tip of the wire 2 is raised as indicated by the arrow in the drawing, and the wire 2 is pulled out from each feed roller 64.

  (3). As shown in FIG. 4C, by operating the spindle support drive motor 34, the spindle 12 is moved as indicated by an arrow in the figure, and the tip surface of the core 3 is moved to the flyer-side core flange 58. Make contact. At this time, the wire 2 extends so as to face the outer periphery of the distal end portion of the core 3.

  (4). As shown in FIG. 5D, the flyer motor 36 and the spindle motor 16 are respectively operated to rotate (revolve) the flyer 55 and the spindle 12 in the same direction and at the same speed as indicated by arrows in the figure. . At this time, the servo motor of the mobile unit 77 is operated in synchronization with the operation of the flyer motor 36 and the spindle motor 16, and the clamp 75 holding the tip of the wire 2 is lowered in the Z-axis direction as indicated by the arrow in the figure. At the same time, the servo motor of the mobile unit 78 is operated to move the clamp 75 in the traverse direction (Y-axis direction) as indicated by the arrow in the figure. As a result, the wire 2 having the tip held by the clamp 75 is wound in an aligned manner on the winding core 3 without being loosened.

  (5). As shown in FIG. 5E, the wire 2 is wound between the flyer side core flange 58 and the spindle side core flange 13 to form the first layer winding portion 101 a of the coil portion 101. The traverse direction of the clamp 75 is reversed as indicated by the arrow in the figure, and the revolution (rotation) speed of the flyer 55 is increased to twice the rotation speed of the spindle 12. As a result, the wire 2 fed from the feed roller 64 of the flyer 55 is wound while being aligned and wound so as to be accommodated between the wires 2 of the first layer winding portion 101a, and the tip is held by the clamp 75. 2 are similarly aligned and wound so as to fit between the wires 2 of the winding portion 101a of the first layer. Thus, the second layer winding portion 101b is formed on the outer periphery of the first layer winding portion 101a.

  At this time, the flyer 55 revolves at a fixed position in the Y-axis direction (traverse direction), but the flyer 55 may be configured to move in the Y-axis direction.

  The operations (1) to (5) are performed as a winding process. Subsequently, the operations (6) to (8) are performed as a shaping process.

  (6). As shown in FIG. 5 (f), when the second layer winding portion 101b is formed, the wire 2 fed out from the feed roller 64 of the flyer 55 and the wire 2 with the tip held by the clamp 75 are formed. Each extends from the center of the second layer winding portion 101b.

  (7). As shown in FIG. 6G, the flyer 55 is revolved so that the feed roller 64 is arranged in the vicinity of the clamp 75, and the tip end is held by the wire rod 2 extending from the feed roller 64 of the flyer 55 and the clamp 75. The wire 2 is crossed with each other. Then, the forming pin moving cylinder 46 is operated to cause the first and second forming pins 41 and 42 to protrude from the spindle-side core flange 13 as indicated by arrows in the figure.

  (8). As indicated by an arrow in FIG. 6H, the flyer 55 is revolved by 180 degrees in the reverse direction to the winding time, and the spindle 12 is rotated by 90 degrees in the reverse direction to the winding time. As a result, the wire 2 extending from the feed roller 64 of the flyer 55 is bent with the second forming pin 42 as a fulcrum, and the wire 2 with the tip held by the clamp 75 is bent with the first forming pin 41 as a fulcrum. At this time, the clamp 75 is moved upward as indicated by an arrow in the drawing so that the wire 2 extending between the clamp 75 and the winding portion 101b is not loosened. When the wire 2 is pulled by the first forming pin 41 during the reverse rotation of the spindle 12, the clamp 75 does not have to be moved upward.

  Subsequently, after the moving device 67 is operated to move the chuck 65, the chuck 65 is closed, the wire 2 extending from the feed roller 64 to the second forming pin 42 is sandwiched, and the wire 2 is fed by a cutter (not shown). And the chuck 65.

  Thus, as shown in FIG. 6 (i), the outer-wound coil 100 is formed.

  Subsequently, the forming pin moving cylinder 46 is operated to pull the first and second forming pins 41 and 42 into the spindle side core flange 13 and the core moving cylinder 25 is operated to rotate the core 3 to the spindle side winding. The core 3 is drawn into the core flange 13, and the core 3 is extracted from the coil portion 101.

  Subsequently, the clamp 75 is opened, the wire 2 serving as the first lead portion 102 is released, the chuck 65 holding the wire 2 serving as the second lead portion 103 is moved in the X-axis direction, and then the chuck 65 is opened. The outer-wound coil 100 shown in 6 (i) is transported to a carry-out section (not shown).

  By performing the above steps in order, the outer and outer wound coil 100 is automatically formed.

  In the outer-wound coil 100, the first lead portion 102 and the second lead portion 103 are bent from the second-layer winding portion 101b of the coil portion 101, respectively, and an angle of 180 ° in the radial direction from the winding center axis O. Since it is shaped so as to extend with a difference, it is not necessary to manually shape the first lead portion 102 and the second lead portion 103. Thereby, when mounting the outer-wound coil 100, the work of connecting the first lead portion 102 and the second lead portion 103 to the substrate by soldering or the like is efficiently performed.

  The outer and outer wound coil 100 is not limited to this, and may form a multi-layer coil portion 101 having a third or more winding portion, and the first lead portion 102 and the second lead portion 103 may be formed. , Not limited to 180 °, it may be formed to extend with an arbitrary angle difference. Further, by setting the revolution speed of the flyer 55 to be higher or lower than twice the rotational speed of the spindle 13, the position where the first lead portion 102 and the second lead portion 103 are formed is set to the winding portion 101b. It is also possible to move left and right from the center.

  The surface of the wire 2 is coated with a fusion layer, and the fusion layer is heated and melted when the coil portion 101 is wound to solidify after being melted, whereby the shape of the coil portion 101 is maintained.

  In the present embodiment, a coil winding method or a coil winding apparatus in which the wire 2 is wound around the core 3 to form the coil portion 101, from the core flange 13 facing the side portion of the coil portion 101. The winding pins 41 and 42 projecting so as to be able to appear and retract are used, or these are provided, and the wire 2 is wound around the core 3 in a state where the forming pins 41 and 42 are pulled into the core flange 13 to form the coil portion 101. A turning step and a shaping step of shaping the lead portions 102 and 103 by bending the wire 2 extending from the coil portion 101 on the forming pins 41 and 42 with the forming pins 41 and 42 protruding from the core flange 13. The configuration is to be performed.

  Based on the above configuration, the lead portions 102 and 103 can be bent and extended from the coil portion 101 via the forming pins 41 and 42, and the degree of freedom in setting the position and shape of the lead portions 102 and 103 is increased. It is done. Thereby, when mounting the coil 100, the operation | work which connects the lead parts 102 and 103 to a board | substrate is performed efficiently.

  Since the forming pins 41 and 42 are reciprocated to protrude and retract from the core flange 13, the forming pins 41 and 42 are quickly moved, the tact time for forming the coil 100 can be shortened, and the productivity is increased. Can be enhanced.

  The coil winding method of the present invention is not limited to the coil winding apparatus 1 including both the flyer rotating mechanism 51 and the core spindle mechanism 11, but is applied to the coil winding apparatus including only the core spindle mechanism 11. You may make it shape the wire which extends to the nozzle which draws out the wire 2 from a coil part at the end using a forming pin. Further, the coil winding method of the present invention may be applied to a coil winding apparatus including only the flyer rotating mechanism 51, and the wire extending from the coil portion to the flyer at the end of winding may be shaped using a forming pin.

  In the present embodiment, an outer and outer coil 100 having a coil portion 101 around which the wire 2 is wound and first and second lead portions 102 and 103 made of the wire 2 extending from the outer periphery of the coil portion 101 is formed. The coil winding device 1 includes a spindle 12 that rotates the winding core 3 around the winding center axis O, a non-revolving wire supply mechanism 70 that supplies the wire 2 wound around the winding core 3, and a winding The flyer 55 that revolves around the rotation center axis O, the revolution wire supply mechanism 50 that supplies the wire 2 wound around the winding core 3 via the flyer 55, and the coil unit 101 wound around the winding core 3. A spindle-side core flange 13 facing the side portion, first and second forming pins 41, 42 projecting from the spindle-side core flange 13 so as to protrude and retract, and the first and second forming pins 41, 42 are provided. Reciprocating motion A forming pin moving mechanism 43 for forming the coil portion 101 by winding the wire 2 around the core 3 in a state where the first and second forming pins 41 and 42 are pulled into the core flanges 13 and 58. In the process, with the first and second forming pins 41 and 42 projecting from the spindle-side core flange 13, the spindle 12 and the flyer 55 are rotated or revolved in the direction opposite to the rotation direction in the winding process to thereby produce the coil portion 101. The wire 2 extending from the coil portion 101 to the non-revolving wire supply mechanism 70 is hooked on the first forming pin 41 and bent to shape the first lead portion 102, and the wire 2 extending from the coil portion 101 to the revolution wire supply mechanism 50 is A shaping step of shaping the second lead portion 103 by being hooked on the forming pin 42 and being bent is adopted.

  Based on the above configuration, the first and second lead portions 102 and 103 can be bent and extended from the coil portion 101 via the first and second forming pins 41 and 42, respectively. The degree of freedom in setting the positions and shapes of the two lead portions 102 and 103 is increased. Thereby, when mounting the outer-wound coil 100, the work of connecting the first and second lead portions 102 and 103 to the substrate is efficiently performed.

  In order to simultaneously shape the first lead portion 102 and the second lead portion 103 by rotating or revolving the spindle 12 and the flyer 55 in the direction opposite to the rotation direction in the winding step, the tact time for forming the outer and outer winding coil 100 is changed. It can be shortened and productivity can be increased.

  In the present embodiment, the revolution speed of the flyer 55 is increased to twice the rotation speed of the spindle 12 and the wire 2 supplied from the non-revolution wire supply mechanism 70 is wound around the core 3 and the revolution wire supply mechanism 50 The supplied wire 2 is wound around the core 3.

  Based on the above configuration, the wire 2 supplied from two directions is wound around the winding core 3 at the same time, the tact time required for winding can be shortened, and the productivity can be improved.

  In the present embodiment, the non-revolving wire supply mechanism 70 includes a clamp 75 that sandwiches the wire 2 and a moving device 77 that moves the clamp 75, and the revolving wire supply mechanism that moves when the moving device 77 moves the clamp 75. The wire 2 supplied from 50 is pulled in and stored, and the tip of the holding is held by the clamp 75 by the moving machine 77 moving in the direction to bring the clamp 75 closer to the core 3 in synchronization with the rotation of the spindle 12 in the winding process. It is set as the structure by which the made wire 2 is wound around the core 3.

  Based on the above configuration, the tension of the wire 2 having the tip held by the clamp 75 in the winding process can be kept substantially constant, and the wire 2 can be aligned without gaps without the wire 2 being loosened. it can.

  In the present embodiment, the moving machine 77 moves the clamp 75 in the direction away from the core 3 in synchronization with the rotation of the spindle 12 in the shaping process, and the wire 2 having the tip held by the clamp 75 is subjected to the first forming. The first lead portion 102 is shaped by being hooked on the pin 41 and bent.

  Based on the above configuration, the tension of the wire 2 having the tip held by the clamp 75 in the shaping process is kept substantially constant, and the wire 2 is bent without using the first forming pin 41 as a fulcrum. The part 102 can be accurately shaped into a predetermined shape.

  The present invention is not limited to the above-described embodiment, and it is obvious that various modifications can be made within the scope of the technical idea.

The side view and front view of the outer-winding coil which show embodiment of this invention. The perspective view of the coil winding apparatus which shows embodiment of this invention. Similarly, an end view of the coil winding device. The operation figure of a coil winding device similarly. The operation figure of a coil winding device similarly. The operation figure of a coil winding device similarly.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Coil winding apparatus 2 Wire material 3 Winding core 11 Winding core spindle mechanism 12 Spindle 13 Spindle side core flange (core flange)
41 First forming pin (Forming pin)
42 Second forming pin (forming pin)
DESCRIPTION OF SYMBOLS 43 Forming pin moving mechanism 50 Revolving wire supply mechanism 51 Flyer rotation mechanism 55 Flyer 58 Flyer side core flange 70 Non-revolving wire supply mechanism 75 Clamp 76 Clamp cylinder 77 Moving machine 100 Outer and outer winding coil (coil)
101 Coil part 102 First lead part (lead part)
103 Second lead (Lead)

Claims (5)

A coil winding method for forming a coil portion by winding a wire around a winding core,
Using a forming pin protruding so as to be able to protrude and retract from a core flange facing the side of the coil part,
A winding step of forming the coil portion by winding the wire around the core in a state where the forming pin is pulled into the core flange;
And a shaping step of shaping the lead portion by bending the wire extending from the coil portion on the forming pin with the forming pin protruding from the core flange. . A coil portion wound with a wire,
A coil winding apparatus for forming an outer-wound coil having first and second lead portions made of the wire extending from the outer periphery of the coil portion,
A spindle that rotates the winding core around the winding center axis;
A non-revolving wire supply mechanism for supplying the wire wound around the core;
A flyer that revolves around the winding center axis;
A revolution wire supply mechanism for supplying the wire wound around the core through the flyer;
A spindle-side core flange facing the side of the coil portion wound around the core;
First and second forming pins that protrude from the spindle core flange so as to be able to protrude and retract,
And a forming pin moving mechanism for reciprocating the first and second forming pins,
A winding step of forming the coil portion by winding the wire around the core in a state where the first and second forming pins are pulled into the core flange;
With the first and second forming pins protruding from the spindle-side core flange, the spindle and the flyer are rotated or revolved in the direction opposite to the rotation direction in the winding step, and the non-revolution from the coil portion. The wire extending to the wire supply mechanism is hung on the first forming pin and bent to shape the first lead portion, and the wire extending from the coil portion to the revolving wire supply mechanism is used as the second forming pin. A coil winding apparatus characterized by performing a shaping step of shaping by bending and bending the second lead portion.   In the winding step, the revolution speed of the flyer is increased to twice the rotation speed of the spindle and the wire supplied from the non-revolution wire supply mechanism is wound around the winding core, and the revolution wire supply mechanism The coil winding apparatus according to claim 2, wherein the wire rod supplied from a coil is wound around the core. The non-revolving wire supply mechanism is
A clamp for sandwiching the wire,
A moving machine for moving the clamp,
This moving machine pulls and stores the wire supplied from the revolving wire supply mechanism by moving the clamp,
In the winding step, the wire machine having the tip held by the clamp is wound around the winding core by the moving machine moving in a direction to bring the clamp closer to the winding core in synchronization with the rotation of the spindle. The coil winding device according to claim 2 or 3, wherein the coil winding device is configured as described above.   In the shaping step, the moving device moves the clamp in a direction away from the winding core in synchronization with the rotation of the spindle, and hooks the wire with the tip held by the clamp on the first forming pin. The coil winding device according to any one of claims 2 to 4, wherein the first lead portion is shaped by bending.