JP2002203733A - Coil winding machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent the winding position of a conductor from being shifted. SOLUTION: At the time of winding the conductor W around a rotating bobbin 1, the front end faces of cam operating pawls 8 which are the load centers of the pawls 8 retreat to form a space (D) for receiving the conductor W of the next row, and NC operating pawls 7 come into contact (E) with the conductor W when the front end faces of the pawls 8 cross the contact between the conductor W and bobbin 1. In addition, when the NC operating pawls 7 retreat to form a space for receiving the conductor W of the next row, the cam operating pawls 8 come into contact with the conductor W.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a winding machine for forming a coil by winding a conducting wire around a rotating bobbin.
The present invention relates to a device that can reliably define a winding position of a conductor.

[0002]

2. Description of the Related Art In a rotating electric machine such as an electric motor or a generator, the number of windings of a coil is increased in order to increase the output. However, simply increasing the number of windings causes an increase in the size of the rotating electric machine. Therefore, the ratio of the sum of the cross-sectional areas of the conductors forming the coil to the cross-sectional area of the slot accommodating the coil between the magnetic poles of the rotating electric machine (hereinafter referred to as space factor) is increased. To increase the space factor is to reduce the gap between the conductors, and for this purpose, a coil forming method and a coil forming apparatus in which the conductors are aligned and wound are proposed. Japanese Patent Application Laid-Open No. 7-183152 discloses such an apparatus.

[0003] In such coil forming, a conductor is wound around a magnetic pole of a rotating electric machine or a winding frame (core metal) having a shape corresponding to the pole without gaps between adjacent conductors and a single layer of the coil. When finished, the layers above it are similarly wound to form a predetermined number of layers.

[0004]

In the above-described winding of a wire for coil formation, when the winding of the wire is changed from one row to the next, a displacement of the wire due to the tension of the wire occurs. In addition, the number of windings of the conductor in one layer is reduced, and the space factor is reduced.

In order to avoid such a situation, a plurality of guide members are provided along the winding surface of the winding frame, and the plurality of guide members are integrally protruded in the axial direction of the winding frame, so that the wound conductive wire can be formed. It can be considered that the winding is constrained in the axial direction (that is, the direction in which the rows are arranged), thereby preventing displacement of the conductor.

By the way, at the time of the above-mentioned row change, the leading end of the guide member has to be retracted to form a gap for receiving the next row of conductors. However, in the configuration in which the plurality of guide members are integrally protruded and retracted in the axial direction, the plurality of guide members all around the entire circumference of the bobbin are retracted due to the operation of forming the gap, and as a result, the lead wire Is caused.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a novel means for preventing a winding position of a conductive wire from being shifted.

[0008]

SUMMARY OF THE INVENTION A first aspect of the present invention is a winding machine for forming a coil by winding a conductive wire around a winding frame. First and second guide members that are in contact with each other, and driving means for driving the first and second guide members, wherein the point of action of the first guide member is wound around the reel or the reel. When crossing the point of contact between the lower conductive layer and the conductive wire before winding, the distal end of the first guide member retreats to form a gap for receiving the next row of conductive wires, and When the point of action of the second guide member crosses the contact point, the tip of the second guide member retreats and the guide member of the second guide member moves back to the next row. Forming a gap for receiving the conductor, Wherein as the first guide member keeping the contact between the conductors, a winding machine, characterized in that it comprises a driving means for driving said first and second guide members.

According to the first aspect of the present invention, the driving means drives the first and second guide members in the projecting / retreating direction. A gap for receiving the next row of the conductors when the leading end of the first guide member retreats when crossing the contact point between the lower conductor layer wound around the winding frame and the conductor before the winding. And the second guide member is kept in contact with the conductive wire.

Conversely, when the point of action of the second guide member crosses the contact point, the tip of the second guide member retreats to form a gap for receiving the next row of the conductors. And the first guide member is kept in contact with the conductive wire.

Therefore, according to the first aspect of the present invention, even when one of the guide members forms a gap for receiving the next row of conductors, the other guide member restrains the conductors. The winding position deviation is prevented.

A second aspect of the present invention is the winding machine according to the first aspect of the present invention, wherein the driving means includes first driving means for projecting and retracting the first guide member, and the first guide. A second driving means for projecting and retracting the second guide member with respect to the member.

According to the second aspect of the present invention, the driving means comprises a first driving means for projecting and retracting the first guide member, and a second driving means for projecting and retracting the second guide member with respect to the first guide member. Drive means, the first and second guide members can be integrally operated by operating only the first drive means in addition to the effects of the first invention. Such an operation can be used, for example, in the case of removing a coil that has been wound.

According to a third aspect of the present invention, in the winding machine according to the second aspect of the present invention, the second driving means is arranged so that the second guide member is displaced in three stages in the projecting and retreating direction. The second
The above-mentioned guide member is driven.

In the third aspect of the present invention, the second driving means displaces the second guide member in three stages in the projecting and retreating direction. Postures that are protruding from the tip of the guide member,
The postures of the three types of second guide members, that is, the retracted postures, can be realized by relatively simple means.

The present invention can be applied to a configuration in which a conductor is wound by rotating a bobbin, and a configuration in which a nozzle for supplying a winding rotates around the bobbin. In the case of a configuration in which the conductor is wound by rotation of the bobbin, the driving means in the present invention mechanically controls the rotational force of the bobbin so that the guide member operates in conjunction with the rotation of the bobbin. It is preferable to use a mechanical element means for converting the movement of the guide member, and in particular, it is preferable to include a cam that defines the operation required of the guide member and a cam follower that follows the cam.

The cam is provided on a rotating member that rotates with the reel, the cam follower does not rotate with the reel, and a cam surface of the cam surrounds a reel rotating shaft. One of the guide members may be attached to the rotating member.

It is also conceivable to directly drive the guide member using an actuator different from the winding frame actuator, and such a configuration is also included in the scope of the present invention.

[0019]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention (hereinafter, referred to as embodiments) will be described below with reference to the drawings.

FIG. 1 is a perspective view showing a main part of the winding machine of the embodiment, FIG. 2 is a front view, and FIG. 3 is a plan view.
Each drawing is partially shown in section and is simplified as appropriate for easy understanding of the invention. FIG. 4 shows the mechanism of the winding machine.

First, the mechanism of the winding machine will be described with reference to FIG. Since the winding machine is symmetrical, only the right half will be described here. The rotating shaft 3 of the winding frame (core metal) 1 is rotatably supported by a device base (not shown). The rotating shaft 3 is rotated by a motor 5.

An NC operating claw 7 as a first guide member and a cam operating claw 8 as a second guide member are provided near the winding frame 1 and on both sides of the rotating shaft 3. Have been. These NC operating pawls 7 and cam operating pawls 8 abut against and press the conductor W wound around the reel 1 in the axial direction, thereby defining the winding position of the conductor W.
The displacement of the conductor W is prevented.

The NC operating pawl 7 and the cam operating pawl 8 are held by a link mechanism 9. The link mechanism 9 is provided so as to be synchronously rotated coaxially with the rotation shaft 3 as described below, and further, the link mechanism 9 controls the movement of the link element in the rotation axis direction by the NC operation claw 7 and It is set so as to convert the movement of the cam operation claw 8 in the diameter direction of the winding frame.

The link mechanism 9 has a first disk 11, a drive link 13, and a conversion link 15. First disk 11
Has a first cylinder 11a provided so as to rotate synchronously coaxially with the winding frame rotation shaft 3, and a radiating portion 11b extending radially from the first cylinder 11a. In a specific configuration of the device, the radiation section 11b has a disk shape. And the radiation section 11b
Holds an NC operating claw 7 and a cam operating claw 8 so as to be slidable in the winding frame radial direction.

The drive link 13 is constituted by a second cylinder 13a provided so as to rotate synchronously coaxially with the rotation shaft 3. Rotary shaft 3, first cylinder 11a and second cylinder 13a
Are constrained to each other in the rotational direction, but are relatively constrained without being constrained in the axial direction.

The conversion link 15 connects the second cylinder 13a and the bases of the NC operating pawl 7 and the cam operating pawl 8 slidably mounted on the radiating portion 11b of the first disk 11. As shown, the conversion link 15 is
Are provided obliquely with respect to.

The first actuator 17 is provided with the first disk 11
Is moved in the direction of the rotation axis. The first disk 11 moves in the axial direction relatively to the rotation shaft 3, whereby the NC operating claw 7 and the cam operating claw 8 move in the rotation axis direction with respect to the bobbin 1 in synchronization with each other.

The second actuator 21 moves the drive link 13 relative to the first disk 11 in the direction of the rotation axis. The movement of the drive link 13 is converted by the conversion link 15 into radial movement of the NC operating pawl 7 and the cam operating pawl 8. That is, from the state of FIG.
Approaching the bobbin 1, the angle formed between the rotation shaft 3 and the conversion link 15 becomes smaller. Then, the NC operating pawl 7 and the cam operating pawl 8 are drawn to the rotating shaft 3. When the drive link 13 moves away from the bobbin 1, the NC operating pawl 7 and the cam operating pawl 8 are separated from the rotating shaft 3 on the contrary. The same principle as the umbrella framework is applied.

The cam operating claw 8 is driven in the projecting and retreating direction by mechanical element means that mechanically converts and uses the rotational force of the winding frame 1. First disk 11 that rotates integrally with rotating shaft 3
Is provided with an inner ring cam 206 and an outer ring cam 208, and the cam operating claw 8 is driven according to the profile of the outer ring cam 208.

FIG. 5 is a view of the first disk 11 viewed from the direction of the rotation axis. Inner ring cam 206 and outer ring cam 2
Reference numeral 08 denotes a concentric circle surrounding the rotation shaft 3. The ring cams 206 and 208 are so-called end cams having undulations along the circumferential direction. The profile of the cam surface is set so that the cam operation claw 8 performs a desired axial operation.

As shown in FIG. 6, the outer ring cam 208
In the range from 0 to 75 degrees, the cam surface is a low reference portion (height Z). In the range from 180 degrees to 270 degrees (hatched portion in FIG. 5), the cam surface is high. Part (height Y). 90 degrees to 165
Degrees, and the range from 285 degrees to 345 degrees is a neutral portion of medium height (height X). Smooth connecting slopes connecting the portions are formed in the regions of 15 degrees between the portions.

The inner ring cam 206 does not change its height, and is set to the same height (height X) as the neutral portion of the outer ring cam 208.

The cam operating claw 8 is held on the first disk 11 via a sleeve 8a so as to be able to expand and contract in the direction of the reel rotation axis. The rotating shaft 3 is provided with a second disk 31 for driving the cam operating claw 8 to protrude and retreat, so as to be relatively movable in the axial direction and relatively non-rotatable in the rotating direction. The cam operating claw 8 is held on the second disk 31 so as to be slidable in the reel diameter direction.

A bracket 33 is provided on an apparatus base (not shown) so as to be slidable in the axial direction. The fork 33a at one end of the bracket 33 is provided with a pair of two opposing rollers. The opposing roller sandwiches the second disk 31. A cam follower 35 is provided at the other end of the bracket 33 via a switching actuator 214 for switching between valid and invalid cams. The switching actuator 214 includes the cam follower 35
The cam follower 35 is selectively brought into contact with the cam surface of the outer ring cam 208 or the inner ring cam 206 by projecting and retracting in the direction toward the rotating shaft 3. Cam Follower 3
When 5 comes into contact with the cam surface of the outer ring cam 208, the cam becomes effective (operating state). The bracket 33 is urged by a spring (not shown) in a direction facing the first disk 11.

When the cam follower 35 comes to the ON portion, which is a high position of the outer ring cam 208 of the first disk, the cam follower 35 is pushed, and the second disk 31 sandwiched between the opposing rollers via the bracket 33 rotates the rotating shaft. Move in the direction
The cam operating claw 8 is driven in the protruding direction.

When the cam follower 35 is in contact with the ON portion, the tip of the cam operating claw 8 is in a position protruding in the direction of the rotation axis with respect to the position of the tip of the NC operating claw 7. When the cam follower 35 is in contact with the neutral portion, the tip of the cam operating claw 8 is located at a position equal to the tip of the NC operating claw 7 in the rotation axis direction. When the cam follower 35 is in contact with the reference position, the tip of the cam operating claw 8 is at a position retracted from the tip of the NC operating claw 7.

As described above, the NC operating claw 7 and the cam operating claw 8 can move in the rotation axis direction and the radial direction with respect to the winding frame 1 while rotating synchronously with the winding frame 1. The NC operating pawl 7 and the cam operating pawl 8 are independently moved by the outer ring cam 208 in the rotation axis direction, and assume the same position in the radial direction.

In this embodiment, the first mechanism for moving the link mechanism is described.
The actuator 17 and the second actuator 21
The driven member is moved only in the direction of the bobbin rotation axis. In this case, the actuators 17 and 21 can perform necessary functions without rotating together with the bobbin 1. Therefore, each actuator is installed on a device base or the like so as not to rotate.

The control unit 23 operates the motor 5, the first actuator 17, the second actuator 21, the switching actuator 214, and other actuators in cooperation with each other. The control unit 23 sends a control signal to each actuator based on a signal from a sensor provided in the winding machine.

Next, a specific configuration of the winding machine will be described with reference to FIGS.

A bobbin support 32 is provided at both ends of the apparatus base 30, and the bobbin 1 and the rotating shaft 3 are supported by the bobbin support 32. A drive belt 36 is hung on pulleys 34 at both ends of the rotating shaft 3, and the drive belt 36 is
Is also hung on the pulley 40 of the drive shaft 38 located below. The drive shaft 38 is belt-driven by the motor 5, whereby the reel 1 rotates.

A guide table 42 is provided on the device base 30.
Is installed. The guide table 42 is slidable along the rail 44 provided on the apparatus base 30 in the direction of the reel rotation axis. The left and right guide tables 42
Each is provided with a first actuator 17 (see FIG. 3). The first actuator 17 is a motor.

The guide table 42 has a guide holding table 48
Has been fixed. The guide holder 48 supports the first disk 11 provided coaxially with the rotating shaft 3. The first disk 11 is constrained in a rotational direction with respect to the rotation shaft 3 via a second cylinder 13 a described later, and rotates synchronously with the rotation shaft 3. Also the first
The disk 11 is axially constrained with respect to the guide holding base 48 and held so as to be relatively rotatable.

The first disk 11 holds the NC operating claw 7 and the cam operating claw 8. The NC operating claw 7 and the cam operating claw 8 are attached to rails 58 (see FIG. 3) of the first disk 11 and are slidable with respect to the first disk 11 in the radial direction.

The cam operating claw 8 is capable of extending and contracting in the axial direction. The tip portion of the cam operating claw 8 is attached to the second disk 31. The bracket 33 (see FIG. 1) is slidably held on the guide table 42 via a rail (not shown). Fork 3 of bracket 33
The opposing roller 3a sandwiches the second disk 31. This fork 33a moves the second disk 31 in the axial direction, whereby the cam operating claw 8 moves in the protruding and retracting direction.

The second disk 31 is held on the first disk 11 by an extendable arm 61, and rotates coaxially and synchronously with the bobbin 1. The tip of the cam operating claw 8 is the second
It is fixed to the disk 31 in the axial direction, but is movably provided in the radial direction.

Further, a driving cylinder support 62 is mounted on the guide table 42. The support 62 is attached to a rail 64 on the guide table 42 and is slidable with respect to the guide table 42 in the direction of the reel rotation axis.

The drive cylinder support 62 pivotally supports the second cylinder 13a. The second cylinder 13a is provided coaxially with the rotation shaft 3. The second cylinder 13a is constrained in the rotation direction with respect to the rotation shaft 3, and both rotate synchronously. Second cylinder 1
3a is an NC operating claw 7 and a cam operating claw 8, which are slidably mounted on the first disk 11 in a radial direction;
It is connected to the first disk 11 via the conversion link 15.

Next, a structure for moving the second cylinder 13a will be described with reference to FIG. As shown in FIG. 3, the second actuator 21 is fixed to one guide table 42 (the left table in the present embodiment). The second actuator 21 is a motor.

The second actuator 21 rotates the first shaft 70 provided in parallel with the bobbin rotation axis. First
The shaft 70 meshes with the drive cylinder support 62 to form a ball screw mechanism 72. The support 62 has a T-shape that is arranged upside down, and engages with the first shaft 70 at a leg extending in a direction perpendicular to the rotation axis.

The first shaft 70 extends to the other guide table 42, that is, the right table.
The first shaft 70 is supported by the bearing support 74 at the right table.

On the right table, a second shaft 76 is provided in parallel with the first shaft 70.
Are supported by a bearing support 78. Second shaft 76
Also, like the first shaft 70, the ball screw mechanism is formed by engaging with the driving cylinder support 62.

The gear 8 attached to the first shaft 70
0 and the gear 82 attached to the second shaft 76 mesh with each other, and the two gears have the same number of teeth. A ball spline mechanism is provided between each shaft and the gear. Therefore, the shafts 70 and 76 respectively
It can move axially relative to 0,82.

The second actuator 21 is connected to the first shaft 7
When 0 is rotated, the second shaft 76 also rotates by the same amount via the gear. Then, the ball screw mechanism simultaneously functions on both the left and right tables, and the driving cylinder support 62 moves in the axial direction. As a result, the second cylinder 13a is connected to the first disk 11
Move in the axial direction with respect to.

Since the first shaft 70 and the second shaft 76 rotate by the same amount in the opposite direction, the drive cylinders on both sides are moved by the same amount in the opposite direction on the device base (in the same direction with respect to the bobbin). Move. That is, both drive cylinders approach the bobbin at the same time or move away from the bobbin.

As described above, the shafts 70 and 76 and the gears 80 and 82 are slidable. This sliding movement occurs when the guide table 42 moves with respect to the device base 30. By this slide, the meshing state of both gears is ensured even if the guide table 42 moves.

The conductor is supplied from a nozzle (not shown) installed near the bobbin 1. The nozzle is constituted by, for example, two pairs of rollers arranged at right angles to each other, and a conductive wire is supplied to the bobbin 1 through a gap between these rollers.
The nozzle is relatively movable with respect to the bobbin 1 by an actuator (not shown), and is moved in the bobbin rotation axis direction (FIG. 7).
Reciprocate in the direction BB). This reciprocating movement changes the supply direction of the conductor W, and the conductor W can move from one row to the next.

As shown in FIG. 7, the winding frame 1 is sandwiched between flanges 12 from both ends in the axial direction. The NC operating pawl 7 and the cam operating pawl 8 protrude and retreat in the axial direction through the through holes of the flange 12, thereby defining the shape of the conductor W.

FIG. 7 shows A from the right to the left in the figure.
A row of the conductive wires W is formed in the direction shown in FIG.
Is located on the same plane as the end surface of the right flange 12. On the other hand, the tip surfaces of the NC operating claw 7 and the cam operating claw 8 on the left side in the figure are formed when any one of them forms a gap for receiving the next row of conductors W, that is, the symbol D in FIG. In the state shown by, the other is the conductor W
Is constrained to the state indicated by reference sign E in FIG.

Next, with reference to FIGS. 8 to 10, the operation of winding a conductor by the winding machine of the present embodiment will be described. In the present embodiment, the coil is formed using a flat wire that is a conductive wire having a square cross section. FIG. 8A is a view of C of the bobbin 1 in FIG.
8 (b), 8 (c), 9 and 10 show the NC operating claw 7 and the cam operating claw at each timing when the bobbin 1 is rotated from the state of FIG. 8 (a). 8
Shows a state of contact between the leading end surface of the wire W and the wound wire W.
8 to 10, the distal end surfaces of the NC operating pawls 7 and the cam operating pawls 8 are shown in a stitch pattern at the distal end surfaces which are in contact with the wound conductor W, and are not in contact with each other. The tip surface floating from the side is shown in white. Fig. 8-
The portion indicated by hatching in the conductor W of FIG. 10 indicates a portion facing the viewer side in the bobbin 1 of FIG. 7, that is, a portion that is arranged side by side with the beginning of winding of the conductor W. In this portion, Column switching from a certain column (for example, the n-th column) to the next column (for example, the (n + 1) -th column) is performed.

In FIG. 8A, a lead wire whose end is clamped by an appropriate clamp portion (not shown) provided on one of the flanges 12 is wound around a winding frame 1 which rotates clockwise in the figure. . Now, when the rotation angle is 0 degree, NC
The operating claw 7 is at the projecting position and presses the side surface of the portion of the conductive wire W that has already been wound on the winding frame 1. On the other hand, the cam operation claw 8 located on the upper side of the winding frame 1 which is located forward (counterclockwise in the drawing) with respect to the contact point between the unwound portion of the conducting wire W and the winding frame 1 has receded. In state. As a result, between the distal end surface of the cam operating claw 8 and the flange 12 or between the distal end surface of the cam operating claw 8 and the side surface of the wire W already wound, the next row of conductive wires W is received. Is formed.

Accordingly, FIG. 8 in which the winding frame 1 is rotated by 45 degrees
In the state (b), between the distal end surface of the cam operating claw 8 and the flange 12 or between the distal end surface of the cam operating claw 8 and the already wound wire W, Is accepted.

Next, when the rotation angle reaches 75 degrees, the first
When the ON portion of the outer ring cam 208 of the disk 11 pushes the cam follower 35, the cam operating claw 8 is driven in the projecting direction. As a result, FIG.
In the state (c), the tip of the cam operation claw 8 comes into contact with the side surface of the conductive wire W already wound. At this time, both the distal end surface of the cam operating claw 8 and the distal end surface of the NC operating claw 7 are in a protruding state, and both are at the same position in the axial direction.

In the state shown in FIG. 9A in which the winding frame 1 is rotated by 135 degrees, the relationship between the tip surface of the cam operating claw 8 and the NC operating claw 7 does not change.

When the rotation angle reaches 165 degrees, the retreat of the NC operating claw 7 is started by the action of the outer ring cam 208 of the first disk 11, and the leading end surface of the NC operating claw 7 is
In the state shown in FIG. 9B rotated by 180 degrees, it is at a position where it has been fully retracted. As a result, the next row of conductors W is received between the distal end surface of the NC operation claw 7 and the flange 12 or between the distal end surface of the NC operation claw 7 and the side surface of the conductor W already wound. Is formed.

Here, during the backward movement of the NC operating claw 7, the cam operating claw 8 must maintain the position of its tip end surface. This operation is realized when the height of the outer ring cam 208 with respect to the cam follower 35 shifts from the neutral position to the ON position.

In the state shown in FIG. 9C in which the winding frame 1 is rotated by 225 degrees, the gap between the distal end face of the NC operating claw 7 and the flange 12 is
Alternatively, the next row of conductors W is received between the distal end surface of the NC operation claw 7 and the conductor W already wound. At this time, the distal end surface of the cam operating claw 8 is on the front side with respect to the distal end surface of the NC operating claw 7.

In the state shown in FIG. 10A in which the winding frame 1 is rotated by 270 degrees, the NC operating claw 7 which has been retracted starts to advance in order to press the side surface of the winding W already wound. Here, during the forward operation of the NC operating claw 7, the position of the distal end surface of the cam operating claw 8 is maintained so that the cam operating claw 8 already at the advanced position does not excessively push the side surface of the wound wire W. There must be. This operation is realized when the height of the outer ring cam 208 with respect to the cam follower 35 shifts from the ON position to the neutral position. This transition is completed at the timing of the rotation angle of 285 degrees. As a result, both the distal end surface of the cam operating claw 8 and the distal end surface of the NC operating claw 7 are pushing the conducting wire W, and both are axially moved. Are in equal positions.

When the rotation angle reaches 345 degrees through the state shown in FIG. 10B in which the winding frame 1 has been rotated 315 degrees, the cam operating claw 8 is used to prevent interference with the unwound conductor W. Start the retreat operation. This operation is performed by the cam follower 3
This is realized by shifting the height of the outer ring cam 208 with respect to 5 from the neutral position to the reference position. as a result,
A gap is formed between the distal end surface of the cam operating claw 8 and the side surface of the conductor W already wound up to receive the next row of conductors W.

FIG. 10 rotated 360 degrees in this manner.
The state shifts to the state of (c). Here, the column change portion indicated by hatching in the figure is wrapped.
Since the operating claw 7 is in the protruding state and restrains the conducting wire W,
Even in the row switching portion where the conductor W is particularly likely to be displaced or collapsed, the displacement and collapse can be effectively prevented. Thus, these operations are repeated thereafter. With the rotation of the reel 1, the absolute positions of the cam operating claw 8 and the NC operating claw 7 with respect to the reel 1 are
It gradually retreats by a dimension corresponding to the thickness of the conducting wire W per rotation. When the winding of the first layer is completed, the winding of the second layer and the third layer is performed thereon. When the winding of a predetermined number of layers is completed, the winding step is completed.

The rotation angle in these series of steps,
The relationship between the operation of the NC operation claw 7 and the operation of the cam operation claw 8 is shown in FIG.
Is shown in

When the winding step is completed, one of the flanges 12 is removed from the winding frame 1 and the other cam operating claw 8 and NC operating claw 7 are advanced together, whereby the coil is removed from the winding frame 1. At this time, the cam operating claw 8 and the NC operating claw 7 are moved forward by the first actuator 1.
This can be realized by operating only 7.

As described above, in the present embodiment, the tip surface, which is the point of action of the NC operating claw 7 as the first guide member,
When crossing the contact point between the winding frame 1 or the lower conductor layer already wound on the winding frame 1 and the conductor W before winding, NC
The distal end surface of the operating claw 7 is retracted to form a gap for receiving the next row of conductive wires W, and the cam operating claw 8 as the second guide member is kept in contact with the conductive wire W. I do.

Conversely, when the distal end surface, which is the point of action of the cam operating claw 8, which is the second guide member, crosses the contact point, the distal end surface of the cam operating claw 8 retreats and moves in the next row. A gap for receiving the conductor W is formed, and the NC operation claw 7 as the first guide member is kept in contact with the conductor W.

As described above, in this embodiment, even when one guide member forms a gap for receiving the next row of conductors W, the other guide member restrains the conductor W.
Is alternately repeated, so that the winding position of the conductive wire is prevented from being shifted. As a result, the number of rows in each layer can be secured, and the entire coil can be formed into an accurate shape.

Further, in this embodiment, the driving means is the first type.
The first actuator 17 is a first drive unit for projecting and retracting the NC operation claw 7 as a guide member, and the second actuator is for projecting and retracting the cam operation claw 8 as a second guide member with respect to the NC operation claw 7. And the outer ring cam 208 which is a driving means of the present invention. In addition to the effects of the first aspect of the present invention, by operating only the first actuator 17, the NC operating pawl 7 and the cam operating pawl 8 It is possible to perform the projecting / retreating operation integrally, and such an operation can be used in a scene of removing a coil that has been wound.

In the present embodiment, the outer ring cam 208 as the second driving means projects the cam operating claw 8 as the second guide member in the "on position", "neutral position" in the retreating direction.
Since the cam operation claw 8 is displaced in three stages of the "reference position", the posture in which the tip of the cam operation claw 8 protrudes from the tip of the NC operation claw 7 which is the first guide member, The three kinds of postures of the retracted posture can be realized by relatively simple means.

Further, in the present embodiment, the timing at which the return of the retracted NC operating pawl 7 or cam operating pawl 8 to the projecting position is completed at substantially the same time as the reception of the lead wire W into the gap (when the rotation angle is 90 degrees). State) and the conductor W to the gap
(The rotation angle is 285 degrees). However, the timing of the completion of this return may be any timing as long as it is simultaneous with or after the reception of the conductor W into the gap. If this timing is too early, there is a high possibility that the reception of the conductor W will fail. On the other hand, if the timing is delayed, the conductor W can be reliably received, but the possibility of damaging the coating layer of the conductor W increases.

In the above-described embodiment, an example in which the present invention is applied to a winding machine having a configuration in which the winding wire 1 winds the conductive wire W by rotating, but the present invention supplies the winding W. The present invention is also applicable to a winding machine having a configuration in which the nozzle revolves around the winding frame 1 and a winding machine having a configuration in which the winding frame 1 and the nozzle revolve with each other.

In the case of a configuration in which the conductive wire W is wound by rotating the winding frame 1, the driving means in the present invention comprises:
It is preferable to use mechanical element means for mechanically converting the rotational force of the reel into the movement of the guide member so that the guide member operates in conjunction with the rotation of the reel. It suffices to include a cam that defines the operation of the cam and a cam follower that follows the cam, and the present invention is not limited to the above embodiment.

The cam is provided on a rotating member that rotates with the reel, the cam follower does not rotate with the reel, and the cam surface of the cam surrounds a reel rotating shaft. It is particularly preferable that one of the guide members is attached to the rotating member.

The cam operating claw 8 as the second guide member in the present invention may be driven not by mechanical element means but by an actuator such as a solenoid or a motor. It belongs to the category of the invention.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a main part of a winding machine according to an embodiment of the present invention.

FIG. 2 is a front view of the winding machine.

FIG. 3 is a plan view of the winding machine.

FIG. 4 is a diagram showing a mechanism of a winding machine.

FIG. 5 is a side view showing a first disk.

FIG. 6 is a diagram showing profiles of an outer ring cam and an inner ring cam of a first disk.

FIG. 7 is a front view showing a coil winding step.

FIGS. 8A to 8C are side views showing a coil winding step.

FIGS. 9A to 9C are side views showing a coil winding step.

FIGS. 10A to 10C are side views showing a coil winding step.

FIG. 11 is a table showing the relationship between the coil winding process and the operations of the NC operation claw and the cam operation claw.

[Explanation of symbols]

1 reel, 3 rotation axes, 5 motors, 7 NC operating claws,
8 cam operating claw, 11 first disk, 12 flange, 13
Drive link, 13a second cylinder, 15 conversion link,
17 first actuator, 21 second actuator, 23 control unit, 35 cam follower, 208 outer ring cam, W conductor.

Claims (3)

[Claims] 1. A winding machine for forming a coil by winding a conducting wire around a winding frame, comprising: a first and a second guide member respectively contacting the conducting wire from the front in a row direction of a row of conducting wires to be wound; A driving unit for driving the first and second guide members, wherein an action point of the first guide member is the winding frame or a lower conductive layer wound around the winding frame, and a conductive wire before the winding. When the first guide member crosses the contact point, the first guide member retreats to form a gap for receiving the next row of the conductive wires, and the second guide member contacts the conductive wire. When the point of action of the second guide member crosses the contact point, the tip of the second guide member retreats to form a gap for receiving the next row of the conductors, And the first guide member is So as to keep the contact between the wire winding machine characterized by comprising a driving means for driving said first and second guide members. 2. The winding machine according to claim 1, wherein the driving unit is configured to: a first driving unit that protrudes and retracts the first guide member; A second driving means for projecting and retracting the second guide member. 3. The winding machine according to claim 2, wherein the second driving unit is configured to displace the second guide member in three stages in a direction in which the second guide member protrudes and retracts. A winding machine for driving a member.