JP2000333419A - Wire processing method and device of nozzle direct winding machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To realize reduction in size and improve manufacturing efficiency of a wire processor of a simplified structure. SOLUTION: In a wiring machine for forming a coil by winding directly to the internal teeth of the core the wire supplied from a nozzle 4 that moves depicting a deformed elliptical locus, a coil is continuously formed over whole internal teeth 2, while the winding start wire, winding end wire and the transfer wire for each different phases are wound to a predetermined angle to the winding groove 11a at the external circumference of a core holding member 11. After the end of the entire winding, the winding end wire is held with a gripper 16 that rotates synchronously with the core and simultaneously each wire wound to the winding groove 11a is once cut at the proscribed position with a cutter 17, that is rotating synchronously with the core.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wire processing method and apparatus for a nozzle series winding machine which forms a field coil by directly winding a wire supplied from a nozzle around a stator core of a rotating electric machine such as a motor.

[0002]

2. Description of the Related Art Conventionally, there is known a nozzle direct winding winding machine provided with a wire processing device. However, the wire processing device of these winding machines is provided with a groove or terminal provided near a wire supply nozzle. The work or a specific robot deposits the wire, or draws the wire for each phase of the coil, and performs the wire processing using a gripper or a cutter provided correspondingly.

[0003]

However, in such a conventional line processing method and apparatus, the former requires a manual operation for depositing a line in a groove or a terminal provided near a nozzle or a specific robot. However, there is a problem that the operation and the configuration are complicated, and a large amount of labor and production equipment are required.

Further, the latter requires a gripper and a cutter for gripping and cutting each wire drawn for each phase of the coil during winding, so that the configuration is complicated, the device becomes large and heavy, and productivity is increased. There was a problem that it decreased.
SUMMARY OF THE INVENTION The present invention has been made in view of the above points, and has a simple configuration, which can reduce the size and weight of an apparatus, reduce costs and improve production efficiency, and a wire processing method for a nozzle series winding machine. It is intended to provide a device.

[0005]

In order to achieve the above-mentioned object, the present invention forms a field coil by directly winding a wire supplied from a nozzle around the internal teeth of a stator core of a rotary electric machine, and forms a field coil at every phase. What is claimed is: 1. A wire processing method for a nozzle series winding machine for continuously performing a crossover process for each of different phases, comprising: a core holding unit that supplies a winding start line, a winding end line, and a crossover wire for each different phase supplied from the nozzle. The present invention provides a wire processing method for a nozzle series winding machine that cuts all the wires wound around the outer periphery of the core holding portion at a predetermined position at a time at the end of all the windings.

In addition, a wire supplied from a nozzle is directly wound around the internal teeth of a stator core of a rotary electric machine to form a field coil, and a nozzle straight winding for continuously performing a crossover process for each in-phase and for each different phase. What is claimed is: 1. A wire processing apparatus for a winding machine, comprising: a core holding member having an outer peripheral portion capable of winding a winding start line, an winding end line, and a transition wire for each different phase supplied from the nozzle, and rotating the core holding member. A gripper freely mounted and movable in a direction perpendicular to the axis thereof, a gripper provided on the core holding member and capable of gripping the winding start line and the winding end line, and the winding start line and the winding end A wire of a nozzle series winding machine having a cutter capable of cutting a wire and a crossover wire for each different phase, and a driving member provided on the base portion for operating the gripper and the cutter, respectively. Management device is also provided.

[0007] In the wire processing apparatus of the above-described nozzle direct winding winding machine, the core holding member has a circular winding groove on the outer peripheral portion on which a winding start line, a winding end line, and a crossover wire for each different phase can be wound. It is good to have.

It is preferable that the core holding member has a radially extending groove through which a winding start line, a winding end line, and a transition wire for each different phase are inserted into the winding groove. further,
The core holding member may be provided with an inclined surface that guides a winding start line, a winding end line, and a transition wire for each different phase to a winding groove on an outer peripheral portion, and a corner portion on an outer diameter side of the passage groove for each different phase. It is more preferable to form an arc-shaped chamfer for transferring the crossover to an inclined surface.

Further, it is preferable that the base portion be moved to a position where the outer peripheral portion on the winding side of the core holding member is inside the nozzle tip portion with the nozzle at the lower end.

[0010]

Embodiments of the present invention will be specifically described below with reference to the drawings. FIG. 1 is a side sectional view taken along the line AA of FIG. 2 showing one embodiment of the present invention, and FIG. 2 is a plan view thereof. Unrelated portions are not shown.

A stator core (hereinafter abbreviated as “core”) 1 to be wound has a plurality of internal teeth 2 on an inner peripheral portion as shown by phantom lines in FIGS. This internal tooth 2
First, a configuration of a winding portion of a nozzle series winding machine (hereinafter, abbreviated as “winding machine”) in which a coil is formed by directly winding a wire on a wire will be described with reference to FIG.

This nozzle series winding machine comprises a drive motor 3
A driving rotary plate 31 fixedly mounted on the output shaft 30a, a fixed bearing 32 provided at a predetermined distance from the rotation center of the driving rotary plate 31, and a sliding bearing 33 rotatably mounted on the fixed bearing 32. have. The drive rotary plate 31 is provided with a drive eccentric shaft 34 rotatably at a position eccentric from the rotation center, and the rotation axis S1 of the drive eccentric shaft 34 is
One rotation axis S is inclined by an inclination angle θ.

Then, the base end of the connecting rod 3 is connected to the drive eccentric shaft 34 via a self-pressure joint 35, and the center of the connecting rod 3 is slid into a shaft hole 33 a provided in the radial direction of the sliding bearing 33. A nozzle 4 for wire supply is implanted at the free end of the connecting rod 3 with its axes perpendicular to each other.

When the drive rotary plate 31 is rotated clockwise by the drive motor 30 and the drive eccentric shaft 34 turns around the output shaft 30a, the drive eccentric shaft 34 is connected to the drive eccentric shaft 34 via the self-pressure joint 35. While the connecting rod 3 connected to the base end slides up and down in the axial direction in the axial hole 33a of the sliding bearing 33, the connecting rod 3 swings around the sliding bearing 33 while rotating.
The connecting rod 3 reciprocates around its axis.

As a result, the nozzle 4 implanted at the free end of the connecting rod 3 moves while drawing a pseudo-elliptical trajectory E while swinging its head in the direction of arrow T. At this time, the drive eccentric shaft 34
By appropriately selecting the inclination angle θ of the core 1, as shown in FIG. 9, the axis of the nozzle 4 can be directed substantially in the radial direction of the core 1, and the width of the open slot 1a is substantially equal to the diameter of the nozzle 4. , The wire 5 can be wound.

In the configuration of the above-mentioned winding section, FIG.
Is moved in the direction indicated by the arrow XX 'and the fixed bearing 32 is moved up and down in conjunction with the movement so that the swing width of the nozzle 4 is changed. XX ′, the internal tooth 2 and the nozzle 4
Interference can be prevented, and the space factor can be improved by the arrangement winding.

As shown in FIGS. 1 and 2, in the nozzle winding machine having the above-described structure, the core 1 to be wound is held by the core holding member 11, and the outer periphery of the core holding member 11 is provided. An annular index gear 12 is integrally fixed to the portion, and the core holding member 11 is attached to the index gear 1.
It is rotatably mounted on a base table 14 which forms a base portion of the device via a bearing 2 and a bearing 13.

The base table 14 is reciprocated in the XX 'direction of FIG.
In the state where the winding is completed and the nozzle 4 is at the descending end, the winding is completed in the X direction indicated by an imaginary line in FIG. Moving. In FIG. 1, for simplicity of illustration, the base table 14 is fixed and the nozzle 4 is shown as being moved in the direction indicated by the arrow X '(FIG. 2).

The tooth portion 12a provided on the outer peripheral portion of the index gear 12 meshes with a driving gear 15 which is driven by an index rotation motor (not shown) which moves together with the base table 14 and reciprocates. Therefore, when the drive gear 15 reciprocates, the index gear 12 reciprocates in the direction of the arrow YY ′ (FIG. 2) with the core holding member 11.

A gripper 16 and a cutter 17 that rotate in synchronization with the rotation of the core 1 are provided on the core holding member 11, and can be operated by a pressing device 20 disposed on the base table 14. FIG. 3 is a cross-sectional view taken along the line B-O-C in FIG. 2. The gripper 16 and the cutter 17 are held at the rising end positions by springs 18 and 19, respectively, and are fixed on the base table 14. It is driven by the pressing device 20.

The pressing device 20 includes a support plate 21 fixed to the base table 14 shown in FIG.
A cylinder 22 carried thereon and its actuator 22
When the pressing member 23 is lowered by the cylinder 22, the gripper 16 and the cutter 17 rotating in synchronization with the core 1 apply the urging force of the springs 18 and 19 to the pressing member 23, respectively. And the wire 5 can be gripped and cut.

As shown in detail in FIG. 4, the core holding member 11 has a circular winding groove 11a on which the wire 5 can be wound and a circular winding groove 11a formed on the lower part of the outer peripheral portion separated from the inner circumferential surface of the index gear 12. Then, a wire 5 is inserted into an angular position corresponding to each internal tooth 2 of the held core 1 as shown in a bottom view of FIG. The grooves 11c are formed as many as possible (six in the figure).

Then, as shown in FIG.
The winding start wire 5a gripped by the core holding member 11 is wound around the winding groove 11a of the core holding member 11 and is introduced into the first internal teeth 2a, as shown in FIG. , The second internal teeth 2b and the third internal teeth 2c
Between the fourth internal teeth 2d and the fifth internal teeth 2e,
An arc-shaped chamfered portion 11d is provided at each of the discharge-side and introduction-side corners of 5c and the discharge-side corner of the winding end line 5d between the sixth internal teeth 2f and the gripper 16 to facilitate the transfer of the wire 5. I have to.

It is to be noted that, between the same phases, that is, between the first internal teeth 2a and the second internal teeth 2b, the third internal teeth 2c and the fourth internal teeth 2d.
The crossovers between the fifth internal teeth 2e and the sixth internal teeth 2f are not particularly shown, but they are well-known cylindrical guides provided opposite the core 1 (upper side in FIG. 1). It is wound along a wall or a plurality of guide pins.

Next, a description will be given of a line processing method between different phases of the line processing apparatus having the above configuration. After the winding of each of the internal teeth 2 is completed, the base table 14 is moved in the X direction shown in FIG.
4 is positioned further outside the inclined surface 11b of the core holding member 11, and as shown in FIG.
Through the groove 11c and intersect with the inclined surface 11b.

At this position, the groove 11
The core holding member 11 is rotated in the direction opposite to the arc-shaped chamfered portion 11d formed in c. For example, in FIG.
When winding the connecting wires 5b, 5c from the internal teeth 2b to the internal teeth 2c or from the internal teeth 2d to the internal teeth 2e around the winding groove 11a, the core holding member 11 is moved in the Y direction (clockwise) as shown in FIG. Rotate by a predetermined angle. Thereby, the crossover 5b,
5c are guided by the arc-shaped chamfered portions 11d, respectively.
It can be guided by the inclined surface 11b and wound around the winding groove 11a.

Also, when returning to the next winding position from the transition position of the wire 5 for each different phase, the base table 14 is moved in the direction indicated by the arrow X 'so that the wire 5 passes through the groove 11c. . Furthermore, the internal teeth 2a
When the winding start line 5a and the winding end line 5d from the internal teeth 2f to the gripper 16 are wound around the winding groove 11a, the same process is performed.

In FIG. 6, the winding start wire 5a,
Crossover wires 5b, 5c and winding end wire 5d for each different phase
Are drawn out of the core holding member 11 in order to make each of the paths clear, but these lines are actually wound around the winding groove 11 a of the core holding member 11. Although not shown in FIG. 6,
In-phase, ie between internal teeth 2a-2b, between 2c-2d and 2
Each of the crossover lines e to 2f is wound on the opposite side of the winding groove 11a of the core holding member 11 as described above.

After all the windings have been completed, the core holding member 11 is rotated to grip the winding end wire 5d with the gripper 16 and the cutter 17 is pressed by the pressing device 20.
The pressing member 23 is moved down just below the pressing member 23 by the cylinder 22 and the cutter 17 is
, The crossover wires 5b and 5c and the winding end wire 5d for each different phase wound around the winding groove 11a can be simultaneously cut at one place.

When the core 1 is removed from the core holding member 11 in this state, as shown in FIG. 7, a wound core 1 in which each wire is secured for a required length can be obtained. At this time, the length of each line cut after being wound around the winding groove 11a of the core holding member 11 is substantially proportional to the winding angle.

[0031]

As described above, according to the wire processing method of the nozzle direct winding winding machine according to the present invention, the winding by the nozzle, the crossover processing for each in-phase, and the processing for each phase can be performed by a very simple operation. The crossover process can be performed continuously, and the production efficiency of the nozzle series winding machine can be greatly improved.

The wire processing apparatus for a nozzle series winding machine according to the present invention is an apparatus for carrying out the above-described wire processing method. The apparatus can be reduced in size and weight with a simple configuration. Cost reduction and improvement in production efficiency can be achieved.

In the above apparatus, the core holding member having the circular winding groove can easily secure the required length of each wire only by controlling the rotation angle of the core holding member. By providing a groove through which a start wire, a winding end wire, and a crossover wire for each different phase are inserted, it is possible to very easily introduce and draw out each wire into the winding groove.

Further, in the above-described apparatus, simply providing the core holding member with an inclined surface for guiding each of the above-mentioned lines to the winding groove makes it easy to introduce each line into the winding groove by rotation of the core holding member, and to form the passage groove. An arc-shaped chamfered portion provided at a corner on the outer diameter side can further improve the introduction and derivation of each line.

Further, in the above device, the base portion on which the core holding member is rotatably mounted further moves beyond the winding portion of the internal teeth at the nozzle lower end position, so that the base portion from the nozzle tip can be easily configured. The supplied wire can be guided to the winding groove of the core holding member.

[Brief description of the drawings]

FIG. 1 is a side sectional view taken along line AA of FIG. 2 showing one embodiment of the present invention.

FIG. 2 is a plan view of the same.

FIG. 3 is a side sectional view taken along the line BOC in FIG. 2;

FIG. 4 is a partially enlarged sectional view showing only a portion D in FIG. 1;

FIG. 5 is a bottom view of the core holding member.

FIG. 6 is an explanatory view schematically showing a winding state of a winding start line, a winding end line, and a crossover wire for each different phase.

FIG. 7 is a plan view showing the wound core.

FIG. 8 is an explanatory view showing an example of a configuration of a winding portion of the nozzle series winding machine.

FIG. 9 is an explanatory view showing the relationship between the nozzle and the core.

[Explanation of symbols]

 1: stator core 2: internal teeth 3: connecting rod 4: nozzle 5: wire 11: core holding member 11a: winding groove 11b: inclined surface 11c: passing groove 11d: arc-shaped chamfered part 14: base table (base part) 16 : Gripper 17: cutter 18, 19: spring 20: pressing device 22: cylinder 23: pressing member 31: drive rotating plate 33: sliding bearing 34: drive eccentric shaft 35: self-pressure joint

Claims (7)

[Claims] 1. A direct-winding nozzle that directly winds a wire supplied from a nozzle around an internal tooth of a stator core of a rotating electric machine to form a field coil and continuously performs a crossover process between each in-phase and between different phases. A wire processing method for a winding machine, comprising: winding a winding start line, a winding end line, and a crossover wire for each of different phases supplied from the nozzle around an outer periphery of a core holding portion by a required angle, and after finishing all windings, A wire processing method for a nozzle series winding machine, wherein each wire wound around an outer periphery of a core holding portion is cut at a predetermined position at a time. 2. A direct-winding nozzle for directly winding a wire supplied from a nozzle around an inner tooth of a stator core of a rotating electric machine to form a field coil and continuously performing a crossover process for each in-phase and for each different phase. A wire processing device of a winding machine, comprising: a core holding member having an outer peripheral portion capable of winding a winding start line, a winding end line, and a crossover for each different correlation supplied from the nozzle, and rotating the core holding member. A gripper freely mounted and movable in a direction perpendicular to the axis thereof, a gripper provided on the core holding member and capable of gripping the winding start line and the winding end line, and the winding start line and the winding end Nozzle straight winding, comprising: a cutter capable of cutting a wire and a crossover for each different phase; and a driving member provided on the base portion for operating the gripper and the cutter, respectively. Line processing apparatus of the line machine. 3. A core holding member is provided with a winding start wire around an outer peripheral portion thereof.
3. A circular winding groove capable of winding a winding end wire and a crossover wire for each different phase.
A wire processing device for a nozzle series-wound winding machine as described in the above. 4. The direct winding nozzle according to claim 3, wherein the core holding member has a radially extending groove through which a winding start line, a winding end line, and a transition wire for each different phase are inserted into the winding groove. Wire processing equipment for winding machines. 5. The core holding member has a winding start wire around an outer peripheral portion thereof.
5. An inclined surface for guiding a winding end line and a crossover line for each different phase to a winding groove is provided.
A wire processing device for a nozzle series-wound winding machine as described in the above. 6. The core holding member has an arc-shaped chamfer at an outer diameter side corner of the passage groove, the arc-shaped chamfer for transferring a crossover for each different phase to an inclined surface. 6. A wire processing device for a nozzle series winding winding machine according to claim 5. 7. The base member is adapted to move to a position where an outer peripheral portion on the winding side of the core holding member is inside the tip of the nozzle when the nozzle is at the lower end. 7. A line processing apparatus for a nozzle series winding machine according to any one of claims 6 to 6.