JP2018074664A - Winding apparatus and winding method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a winding apparatus which exhibits high productivity while ensuring the aligning performance of windings.SOLUTION: The winding apparatus comprises: a rotary core chuck 2 that holds a core piece 1; a wire flyer 12 that winds a wire 16 around the core piece 1; and an arm device 6 including an arm 7 having a terminal wire winding portion 9 and a terminal wire holding portion 10 and including a linearly driving shaft 8 for linearly moving the arm 7. The arm device 6 has a structure in which a winding start side wire 16a of the wire 16 is held by the terminal wire winding portion 9 and the terminal wire holding portion 10, and, before start of winding of the wire 16, the linearly driving shaft 8 linearly moves the arm 7 toward a side away from the core piece 1 and tension is applied to the wire 16.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a winding device and a winding method for winding each tooth of a plurality of core pieces.

When winding each magnetic pole tooth of a core member formed by connecting a plurality of core pieces in a band shape via a connecting means that can be bent, it is necessary to ensure alignment of the windings. For this reason, it is important to suppress the deflection of the wire that occurs when starting to wind the winding.
Hold the wire from both sides of the unit that grips the winding start terminal and the winding machine that winds the wire, and start winding just before winding and tighten the wire by adjusting the position of the gripping unit and nozzle of the terminal and loosen the wire A winding device that suppresses this is disclosed (for example, see Patent Document 1).

JP-A-2015-173571 (paragraphs [0026], [0028] and FIG. 7)

  However, in the invention disclosed in Patent Document 1, the winding start line is gripped by the gripping unit, and the gripping unit is adjusted by three-axis driving to suppress the slack of the wire.

  The present invention has been made to solve the above problems, and an object of the present invention is to provide a winding device and a winding method with high productivity while ensuring the alignment of the windings.

A first winding device according to the present invention is a winding device that performs winding on a core piece that includes a yoke portion and a teeth portion that protrudes from the yoke portion, and a rotary core that holds the core piece. A chuck and a wire flyer for winding the wire around the teeth of the core piece;
An arm having a terminal wire winding portion and a terminal wire holding portion, and an arm device having an arm driving portion for linearly moving the arm. The arm device winds a wire between the terminal wire winding portion and the terminal wire holding portion. In addition to holding the starting line, the arm driving unit linearly moves the arm away from the core piece before starting the winding of the wire, thereby applying tension to the wire.

  A second winding device according to the present invention is a winding device that performs winding on a core piece including a yoke portion and a tooth portion protruding from the yoke portion, the rotary core holding the core piece. An arm having a chuck, a wire flyer for winding a wire around a tooth portion of a core piece, an arm having a terminal wire winding portion and a terminal wire holding portion, and an arm drive portion for rotating and moving the arm. The device holds the wire winding start line at the terminal wire winding part and the terminal wire holding part, and the arm driving part rotates and moves the arm away from the core piece before starting the wire winding. It has a structure for applying tension.

  The first winding method according to the present invention is a method using the first winding device, wherein the winding first holding step of holding the winding start wire of the wire by the terminal wire winding portion and the terminal wire holding portion. And a wire flyer preparatory rotation step in which the wire flyer is rotated to a position along the side surface of the core piece, and an arm drive unit that linearly moves the arm away from the core piece to apply tension to the wire. 1 movement step, a wire first winding step of winding the wire around the core piece, a winding start wire releasing step of releasing the winding start wire of the wire held by the terminal wire winding portion and the terminal wire holding portion, A wire second winding step of winding the remaining wire around the core piece.

  The second winding method according to the present invention is a method using the second winding device, wherein the winding first holding step of holding the winding start wire of the wire by the terminal wire winding portion and the terminal wire holding portion. A wire flyer preparatory rotation process that rotates the wire flyer to a position along the side surface of the core piece, and an arm drive unit that rotates and moves the arm away from the core piece to apply tension to the wire. 1 movement step, a wire first winding step of winding the wire around the core piece, a winding start wire releasing step of releasing the winding start wire of the wire held by the terminal wire winding portion and the terminal wire holding portion, A wire second winding step of winding the remaining wire around the core piece.

  According to the first winding device of the present invention, the arm device holds the wire winding start line at the terminal wire winding portion and the terminal wire holding portion, and the arm is attached to the core piece before starting the wire winding. Since the arm drive unit moves linearly so as to be separated from each other and tension is applied to the wire, it is possible to improve the productivity while improving the winding start line holding force and ensuring the alignment of the windings.

  According to the second winding device of the present invention, the arm device holds the wire winding start line at the terminal wire winding portion and the terminal wire holding portion, and the arm is attached to the core piece before starting the wire winding. Since the arm drive unit is configured to rotate and move away from the arm so that the wire is tensioned, it is possible to improve the productivity while improving the winding start line holding force and ensuring the alignment of the windings.

  According to the first winding method of the present invention, the winding first holding step of holding the wire winding start line by the terminal wire winding portion and the terminal wire holding portion, and the arm so as to be separated from the core piece. Since the arm driving unit includes an arm first moving step in which the arm driving unit moves linearly and applies tension to the wire, it is possible to improve the winding start line holding force and improve the productivity while ensuring the winding alignment.

  According to the second winding method of the present invention, the winding first holding step of holding the winding start line of the wire by the terminal wire winding portion and the terminal wire holding portion, and the arm away from the core piece. Since the arm drive unit includes an arm first moving step in which the arm drive unit rotates and applies tension to the wire, the winding start line holding force can be improved, and the productivity of the winding can be improved while ensuring the alignment of the windings.

It is a block diagram of the winding apparatus which concerns on Embodiment 1 of this invention. It is explanatory drawing of the core piece which concerns on the winding apparatus of Embodiment 1 of this invention. It is explanatory drawing of the core piece after the winding which concerns on the winding apparatus of Embodiment 1 of this invention. It is an operation | movement flowchart which concerns on the winding apparatus of Embodiment 1 of this invention. It is an operation | movement flowchart which concerns on the winding apparatus of Embodiment 1 of this invention. It is explanatory drawing of the operation state of the winding apparatus which concerns on the winding apparatus of Embodiment 1 of this invention. It is explanatory drawing of the operation state of the winding apparatus which concerns on the winding apparatus of Embodiment 1 of this invention. It is explanatory drawing of the terminal wire winding part which concerns on the winding apparatus of Embodiment 1 of this invention. It is explanatory drawing of the operation state of the winding apparatus which concerns on the winding apparatus of Embodiment 1 of this invention. It is explanatory drawing of the terminal wire winding part which concerns on the winding apparatus of Embodiment 1 of this invention. It is explanatory drawing of the operation state of the winding apparatus which concerns on the winding apparatus of Embodiment 1 of this invention. It is explanatory drawing of the operation state of the winding apparatus which concerns on the winding apparatus of Embodiment 1 of this invention. It is explanatory drawing of the operation state of the winding apparatus which concerns on the winding apparatus of Embodiment 1 of this invention. It is explanatory drawing of the operation state of the winding apparatus which concerns on the winding apparatus of Embodiment 1 of this invention. It is explanatory drawing of the operation state of the winding apparatus which concerns on the winding apparatus of Embodiment 1 of this invention. It is explanatory drawing of the terminal wire winding part which concerns on the winding apparatus of Embodiment 1 of this invention. It is explanatory drawing of the operation state of the winding apparatus which concerns on the winding apparatus of Embodiment 1 of this invention. It is a flowchart of the winding method of Embodiment 1 of this invention. It is explanatory drawing of the operation state of the winding apparatus which concerns on the winding apparatus of Embodiment 2 of this invention. It is explanatory drawing of the operation state of the winding apparatus which concerns on the winding apparatus of Embodiment 2 of this invention. It is an operation | movement flowchart (characteristic part) which concerns on the winding apparatus of Embodiment 2 of this invention.

Embodiment 1 FIG.
In the first embodiment, in order to perform winding on a core piece including a yoke portion and a tooth portion, a rotary core chuck that holds the core piece, a wire flyer that winds a wire around the tooth portion of the core piece, and An arm device including an arm having a terminal wire winding portion and a terminal wire holding portion and an arm driving portion that linearly moves the arm. The arm device winds the wire between the terminal wire winding portion and the terminal wire holding portion. A winding device having a structure in which the arm driving unit linearly moves the arm to move away from the core piece before starting the winding of the wire and tension is applied to the wire, and the winding first holding. A wire flyer preparation rotating step, an arm first moving step, a wire first winding step, a winding start wire releasing step, a wire second winding step, and an arm second moving step, A second holding step winding, to a winding method comprising a wire cutting step.

  FIG. 1 is a configuration diagram of a winding device, FIG. 2 is an explanatory diagram of a core piece, and an explanatory diagram of a core piece after winding, regarding the configuration of the winding device and the winding method according to the first embodiment. 3, FIG. 4 and FIG. 5 which are operation flow diagrams, FIG. 6, FIG. 7, FIG. 9, FIG. 11 to FIG. 15 and FIG. 8 and 10 which are explanatory diagrams of FIG. 8, FIG. 16 which is an explanatory diagram of a terminal wire winding portion, and FIG. 18 which is a flowchart of a winding method.

First, the structure of the winding apparatus 100 of Embodiment 1 is demonstrated based on FIG.
1A is a top view of the winding device 100, FIG. 1B is a front view of the winding device 100, and FIG. 1C is a side view of the winding device 100. FIG.
In FIG. 1, in order to make the structure of the winding device 100 and the relationship between the components easy to understand, only the main part is described with the positional relationship changed. In FIG. 1A, the arm device 6 is shown separated from the rotary core chuck 2 so that the entire rotary core chuck 2 to which the core piece 1 is attached can be easily understood. In FIG. 1B, only the winding target portion of the core piece 1 is emphasized, and the rotary core chuck 2 is omitted.

  The winding device 100 is a device that winds the core piece 1, and the rotary core chuck 2 that holds the core piece 1 and the arm device 6 that operates the wire 16 when winding the core piece 1. And the wire flyer 12 which winds a coil | winding around the core piece 1 is provided. Originally, the core piece 1 is an object to be wound by the winding device 100 and is not a part of the winding device 100, but is closely related to the operation of the winding device 100. It explains without distinguishing.

In FIG. 1A, the rotary core chuck 2 has a core chuck rotation drive shaft 3 and includes a plurality of surfaces (six surfaces in FIG. 1A) to which the core piece 1 is attached.
In the first embodiment, it is assumed that windings are applied to four core pieces 1 (1a, 1b, 1c, 1d). In FIG. 1A, the core piece 1a is attached to a position (surface) where the winding of the rotary core chuck 2 is applied. The core piece 1a is wound at the head, and the core piece 1b is adjacent to the core piece 1a.
In addition, when it is not necessary to distinguish each core piece, it describes as the core piece 1.

An arm device 6 is installed above the rotary core chuck 2. The arm device 6 includes an arm 7 and a rectilinear drive shaft 8 that moves the arm 7 linearly (forward or backward). The arm 7 is provided with a terminal wire winding portion 9, a terminal wire holding portion 10, and a drive portion 11 for driving the terminal wire holding portion 10 at the tip thereof.
A wire flyer 12 is installed on the front surface of the rotary core chuck 2 so as to face the core piece 1 to be wound. The wire flyer 12 rotates counterclockwise around the rotation shaft 14 and winds the wire 16 around the core piece 1.

As shown in FIGS. 1A to 1C, the wire 16 is held at one end by the terminal wire winding portion 9 and the terminal wire holding portion 10 and held at the other end by the wire flyer 12. Has been.
When the wire 16 is wound around the core piece 1, the wire 16 is sequentially drawn from the wire flyer 12 and has a length sufficient to form a coil on the core piece 1.
The wire flyer 12 is structured to receive resistance when the wire 16 is pulled out. For this reason, when the length of the wire 16 between the wire flyer 12 and the terminal wire winding part 9 becomes long, the wire 16 will be in the state which has tension | tensile_strength.
In FIG. 1B and FIG. 1C, description of the entire wire flyer 12 is omitted, and a wire flyer tip 12a that holds the end of the wire 16 (hereinafter referred to as tip 12a as appropriate). Only listed.

  Further, in FIG. 1B, the winding device 100 includes a wire cutter 17 so that the wire 16 can be cut between the core piece 1 and the terminal wire winding portion 9.

Next, the core piece 1 on which the winding device 100 performs winding will be described with reference to FIG.
FIG. 2A is a plan view of a state in which the core piece 1a and the core piece 1b are connected, and FIG. 2B is a cross-sectional view of the connecting portion 31 in FIG. It is.
The core piece 1 is a laminated core formed by laminating magnetic plate materials. As shown in FIG. 2A, the core piece 1 includes a yoke portion 23 extending in the circumferential direction and a teeth portion 24 protruding from the yoke portion 23. The teeth part 24 is an area around which the wire 16 is wound.
As shown in FIG. 2A, the yoke portion 23 is provided with connecting portions 31 at both end surfaces in the circumferential direction. This connection part 31 has connected the core piece 1a and the core piece 1b which are arrange | positioned adjacently so that bending is possible. In the first embodiment, as shown in FIG. 2B, the core pieces 1 alternately overlap the circumferential end portions of the yoke portions 23 of the adjacent core pieces 1 for each magnetic plate material.

In FIG.2 (b), the connection part 31 of this core piece 1 is provided with the convex part 31a and the recessed part 31b. By inserting the convex portion 31a into the concave portion 31b, the adjacent core pieces 1 are connected so as to be bendable.
The connecting portion 31 may have any configuration as long as the adjacent core pieces 1 are connected so as to be bendable, and is not limited to the description example of the first embodiment. In addition, the core pieces 1 to be wound by the winding device 100 need not be connected to each other when the supply to the rotary core chuck 2 is continuously performed. It is not limited to the explanation example of the first embodiment.

In FIG. 2A, dovetail-shaped openings 30 are provided on the back portions in the circumferential direction on both end surfaces of the yoke portion 23 in the stacking direction.
In the first embodiment, the opening 30 provided on one end face in the stacking direction and the opening 30 provided on the other end face in the stacking direction are configured by one through hole. However, since the opening 30 is a groove for fixing the core piece 1 to the rotary core chuck 2, it does not need to have a shape penetrating in the stacking direction. Moreover, the opening part 30 does not need to be dovetail-shaped, and is not limited to the explanation example of the first embodiment.

Next, the core piece 1 after winding is demonstrated based on FIG.
FIG. 3A is a perspective view of the core piece 1 provided with a winding, and FIG. 3B is a cross-sectional view seen in the direction of arrow C in FIG.
An insulating member 25 is attached to the core piece 1 including the yoke portion 23 and the tooth portion 24 between the winding region of the wire 16. The insulating member 25 is a member for preventing a short circuit with the core piece 1 when the wire 16 is energized.
In FIG. 3, the insulating member 25 is described for explaining the configuration of the core piece 1, but since it is not an important component, the description of the insulating member 25 is omitted in the following drawings.

  Next, the operation of the winding device 100 will be described with reference to FIGS. 6 to 14 which are explanatory diagrams of the operating state or the terminal wire winding unit according to the operation flow of FIGS.

In step 1 (S01), the winding start wire 16a corresponding to the tip of the wire 16 is sandwiched and held between the terminal wire winding portion 9 and the terminal wire holding portion 10.
In step 2 (S02), the core piece 1a is set on the rotary core chuck 2.
FIG. 6 shows the state of the winding device 100 at the time when Step 2 is completed. FIG. 6A is a top view, and FIG. 6B is a front view thereof.
In FIG. 6A, in order to emphasize the rotary core chuck 2, the arm device 6 describes only the terminal wire winding portion 9 and the terminal wire holding portion 10.
As shown in FIG. 6 (b), the end wire winding portion 9 stands by at a position just above the core piece 1a fixed to the rotary core chuck 2, and the tip of the wire flyer 12 is the end line. It stands by at a position further above the winding part 9.

Next, in step 3 (S03), the wire flyer 12 is rotated to a position where the wire 16 is along the side surface of the core piece 1a.
FIG. 7 shows the state of the winding device 100 at the time when Step 3 is completed. FIG. 7A is a top view, and FIG. 7B is a front view thereof.
As shown in FIG. 7B, the wire flyer 12 is placed below the core piece 1a so that the wire 16 between the terminal wire winding portion 9 and the wire flyer tip 12a is parallel to and in contact with the side surface of the core piece 1a. It is rotating counterclockwise.

Here, the characteristic of the terminal wire winding part 9 is demonstrated in FIG.
As shown in FIG. 8A, the terminal wire winding portion 9 has a fan-shaped corner at the contact with the wire 16.
FIG. 8B shows a case where the shape of the corner portion in contact with the wire 16 of the terminal wire winding portion (indicated by 9a in the figure) is a right angle. In this case, even if tension is applied to the wire 16, the wire 16 swells against the corner portion, so that it is very difficult to obtain a state of being parallel and in contact with the side surface of the core piece 1. However, the positioning accuracy of the wire 16 can be easily improved by making the shape of the corner | angular part which contacts the wire 16 into a fan shape like the terminal wire winding part 9 of Fig.8 (a).

Next, in step 4 (S04), the linear drive shaft 8 moves linearly so as to move the arm 7 away from the core piece 1a, that is, the arm 7 is moved backward to apply tension to the wire 16.
FIG. 9 shows the state of the winding device 100 at the time when Step 4 is completed. FIG. 9A is a top view, and FIG. 9B is a front view thereof.

As shown in FIG. 9A, when the arm 7 moves backward with respect to the core piece 1a, the terminal wire winding portion 9 and the terminal wire holding portion 10 attached to the distal end portion of the arm 7 move backward.
In addition, since the terminal wire winding part 9 and the terminal line holding | maintenance part 10 move simultaneously, in the description, only the terminal wire winding part 9 is described suitably.
When the terminal wire winding portion 9 is retracted, the path length of the wire 16 between the wire flyer 12 and the position of the terminal wire winding portion 9 is increased, so that tension is further applied to the wire 16. For this reason, the wire 16 is strongly pressed against the yoke portion 23 of the core piece 1a, and the slackness of the wire 16 is suppressed. At the same time, the wire 16 comes along the corner formed by the yoke portion 23 and the teeth portion 24 of the core piece 1a.

Here, the effect of retracting the arm 7, that is, the terminal wire winding unit 9 and the terminal line holding unit 10 will be described.
By retreating the terminal wire winding portion 9, when the wire 16 starts to be wound, it is possible to suppress the looseness of the wire 16 on the core piece 1 a by only the uniaxial operation of the arm device 6.

Further, the tension applied to the wire 16, that is, the tension generated in the wire 16 will be described with reference to FIG. FIG. 10 is a diagram for explaining the direction of tension generated in the terminal wire winding portion 9 and the wire 16. The direction of tension generated in the wire 16 between the wire flyer 12 and the terminal wire winding portion 9 is downward D. On the other hand, the direction of the tension generated in the winding start wire 16a held between the terminal wire winding portion 9 and the terminal wire holding portion 10 is upward E.
For this reason, the tension | tensile_strength which generate | occur | produces in the wire 16 becomes the sum total of the frictional force of the terminal wire winding part 9 and the wire 16, and the terminal wire holding | maintenance part 10 and the wire 16. In particular, as the tension generated in the wire 16 increases, the force pressed against the end wire winding portion 9 of the wire 16 increases, and thus the frictional force generated in the end wire winding portion 9 and the wire 16 increases.

Thereby, the slack of the wire 16 is further suppressed and the wire 16 comes to follow the corner of the core piece 1a. For this reason, the alignment property of the wire 16 at the time of winding the wire 16 after this around the teeth part 24 of the core piece 1a improves.
Improving the alignment of the wires 16 is important for improving the performance and quality of products wound with the winding device 100.

Next, in step 5 (S05), the wire 16 is wound around the core piece 1a a predetermined number of times.
Here, in step 6 (S06), in order to fix the winding start line, it is confirmed whether the winding has been performed a predetermined number of times. The predetermined number of times is determined at the prototype stage.
FIG. 11 shows a state of the winding device 100 when the wire 16 is wound around the core piece 1a a predetermined number of times. FIG. 11A is a top view, and FIG. 11B is a front view thereof.
If it has been wound a predetermined number of times (Yes), it proceeds to the next step 7 (S07), and if the number of windings is insufficient (No), it returns to the previous step 5 (S05).

Next, in Step 7 (S07), the winding start line of the wire 16 is released from the terminal line holding unit 10.
By opening the winding start line of the wire 16, after the winding of the wire 16 is completed, the winding end terminal of the wire 16 can be immediately sandwiched between the terminal wire winding unit 9 and the terminal line holding unit 10.

Next, in Step 8 (S08), the remaining winding is wound around the core piece 1a.
Step 9 (S09) is completed by winding the remaining required number of wires 16 around the core piece 1a.

Next, in step 10 (S10), the linear drive shaft 8 is linearly moved so that the arm 7 approaches the core piece 1a, that is, the arm 7 is moved forward with respect to the core piece 1.
The terminal wire winding part 9 moves to the upper part of the core piece 1a by moving the arm 7 forward.
FIG. 12 shows the state of the winding device 100 at the time when step 10 is completed. FIG. 12A is a top view, and FIG. 12B is a front view thereof.
As shown in FIG. 12A, at this time, the terminal wire winding portion 9 of the winding start line, the portion held by the terminal wire winding portion 9 and the terminal wire holding portion 10 (winding start wire 16a) are removed, It remains in its original position.
In FIG. 12B, the winding start line 16a is omitted.

  For this reason, when the terminal wire winding part 9 stops on the core piece 1a, the core piece 1a and the wire flyer are placed between the terminal wire winding part 9 and the terminal line holding part 10 with the terminal line holding part 10 opened. 12, the winding end line 16b of the wire 16 restrained by 12 is located.

Next, in step 11 (S11), the winding end wire 16b of the wire 16 is sandwiched and held between the terminal wire winding portion 9 and the terminal wire holding portion 10.
Here, the winding end line 16b of the wire 16 sandwiched and held between the terminal wire winding part 9 and the terminal line holding part 10 can be used as it is as the winding start line for the next core piece 1b.

Next, the wire 16 (winding end line 16b) between the terminal wire winding part 9 and the core piece 1a is cut by the wire cutter 17 in step 12 (S12).
FIG. 13 shows the state of the winding device 100 at the time when step 12 is completed. FIG. 13A is a top view, and FIG. 13B is a front view thereof.
In FIG. 13, for easy understanding of the state of the winding device 100, the arm device 6 describes only the terminal wire winding portion 9 and the terminal wire holding portion 10. Further, the winding start line 16a is also omitted.

In step 13 (S13), it is confirmed whether the winding of the core pieces 1d from all the core pieces 1a is completed.
When the winding of the core piece 1d from the core piece 1a has been completed, the processing ends. If the core piece to be wound still remains, the process proceeds to the next step 14 (S14).

In step 14 (S14), the rotary core chuck 2 is rotated to move the next adjacent core piece (1b) to the winding region.
FIG. 14 shows the state of the winding device 100 at the time when step 14 is completed. FIG. 14A is a top view, and FIG. 14B is a front view thereof.
In FIG. 14, for easy understanding of the state of the winding device 100, the arm device 6 describes only the terminal wire winding portion 9 and the terminal wire holding portion 10.
At this time, since the wire flyer 12 and the wire 16 are in a standby state above the terminal wire winding portion 9, they do not interfere in the moving region of the core piece 1a and the core piece 1b.

Next, returning to step 3, the wire flyer 12 is rotated to a position where the wire 16 is along the side surface of the core piece 1b.
FIG. 15 shows the state of the winding device 100 at the time when Step 3 is completed. FIG. 15A is a top view, and FIG. 15B is a front view thereof.
In FIG. 15, the arm device 6 describes only the terminal wire winding unit 9 and the terminal line holding unit 10.

Here, the feature of the shape of the terminal wire winding part 9 is demonstrated in FIG. FIG. 16 is a view of the core piece 1 and the terminal wire winding portion 9 as seen from the front of the winding device 100.
The shape of the terminal wire winding part 9 is left-right asymmetric. The length F from the central axis T of the core piece 1 to the left end face of the terminal wire winding portion 9 is equal to the distance F from the central axis T of the core piece 1 to the side end face of the core piece 1. The length G from the central axis T of the core piece 1 to the right end face of the terminal wire winding portion 9 is the right end face of the wire 16 wound around the core piece 1 after winding the wire 16 from the central axis T of the core piece 1. Is equal to the distance G to

  What cut | disconnected the winding end line of the wire 16 of the core piece 1a can be utilized as it is as a winding start line of the wire 16 with respect to the core piece 1b. For this reason, all useless operations can be omitted from the state where the winding of the core piece 1a is completed until the preparation for starting the winding of the core piece 1b is completed. Further, since the preparatory operation for starting winding around the core piece 1b can be performed only by the rotation operation of the wire flyer 12, the arm 7 including the terminal wire winding portion 9 and the terminal wire holding portion 10 is uniaxially operated by the linear drive shaft 8. Other than is unnecessary. For this reason, the structure can be simplified as compared with the three-axis drive required for preparation of the winding start line in the prior art.

Next, in step 4 (S04), the arm 7 is moved backward to apply tension to the wire 16.
FIG. 17 shows the state of the winding device 100 at the time when Step 4 is completed. FIG. 17A is a top view, and FIG. 17B is a front view thereof. The difference from FIG. 9 is that the winding object is from the core piece 1a to the core piece 1b.

  As described above, every time a core piece around which the wire 16 is not wound is supplied, step 3 (S03) to step 14 (S14) in FIG. 4 and FIG. Can be increased.

Next, the winding method of the winding apparatus of the first embodiment described above will be described with reference to FIGS. 1 to 17 as appropriate based on the flowchart of FIG.
The winding method according to the first embodiment is a winding method in which the winding is performed on the core piece 1 using the winding device 100, and the following Step 101 (S101) to Step 109 ( S109).

  In the first winding holding step of step 101 (S101), the winding start wire 16a corresponding to the tip of the wire 16 is sandwiched and held between the terminal wire winding portion 9 and the terminal wire holding portion 10 at the tip of the arm 7. To do.

  In the wire flyer preparation rotation process of step 102 (S102), the wire flyer 12 is rotated to a position where the wire 16 is along the side surface of the core piece 1a.

  In the first arm moving step of step 103 (S103), the linear drive shaft 8 is linearly moved so that the arm 7 moves away from the core piece 1a, and tension is applied to the wire 16.

  In the first wire winding step in step 104 (S104), the wire 16 is wound around the core piece 1a a predetermined number of times.

  In the winding start line releasing step of step 105 (S105), the winding start line of the wire 16 held by the terminal wire winding portion 9 and the terminal wire holding portion 10 at the tip of the arm 7 is released.

  In the wire second winding step in step 106 (S106), the remaining winding is wound around the core piece 1a.

  In the arm second moving step of Step 107 (S107), the rectilinear drive shaft 8 is linearly moved so that the arm 7 approaches the core piece 1.

  In the second winding holding step of step 108 (S108), the winding end wire 16b of the wire 16 is sandwiched and held between the terminal wire winding portion 9 and the terminal wire holding portion 10 at the tip of the arm 7.

  In the wire cutting step of step 109 (S109), the wire 16 (winding end line 16b) between the terminal wire winding part 9 of the arm 7 and the terminal wire holding part 10 and the core piece 1a is cut by the wire cutter 17.

  The “arm drive unit” in the claims corresponds to the “straight drive shaft 8” in the operation flowcharts of FIGS. 4 and 5 and the flowchart of FIG.

As described above, in the first embodiment, in order to perform winding on the core piece including the yoke portion and the tooth portion, the rotary core chuck that holds the core piece, and the wire are connected to the tooth portion of the core piece. A wire flyer wound around the arm, an arm having a terminal wire winding part and a terminal line holding part, and an arm device having an arm driving part for linearly moving the arm, the arm device holding the terminal wire winding part and the terminal line holding A winding device having a structure in which the arm drive unit moves linearly so as to separate the arm from the core piece before the wire starts winding, and tension is applied to the wire. A winding first holding step, a wire flyer preparatory rotation step, an arm first moving step, a wire first winding step, a winding start wire releasing step, a wire second winding step, Arm and the second moving step, a second holding step winding, to a winding method comprising a wire cutting step.
For this reason, the winding apparatus and winding method of Embodiment 1 can improve the productivity while improving the winding starting wire holding force and ensuring the alignment of the windings.

Embodiment 2. FIG.
The winding device of the second embodiment has a structure in which the arm that has been linearly moved in the winding device of the first embodiment is rotated.

  Hereinafter, the winding device and the winding method of the second embodiment will be described based on FIGS. 19 and 20 which are explanatory diagrams of the operating state of the winding device, and FIG. 21 which is an operation flow of the characteristic portion. The difference from 1 will be mainly described.

First, the structure of the winding apparatus 200 of Embodiment 2 is demonstrated based on FIG.
FIG. 19 is a side view of the winding apparatus 200. Only the main parts are shown so that the difference from the winding apparatus 100 of the first embodiment is clear, and the rotary core chuck 2 is omitted.

The winding device 200 is a device that winds the core piece 1, and operates a rotary core chuck (not shown) that holds the core piece 1 and the wire 16 when the core piece 1 is wound. An arm device 206 and a wire flyer 12 for winding a winding around the core piece 1 are provided. In FIG. 19, only the tip 12a of the wire flyer 12 is shown.
The arm device 206 includes an arm 207 and a rotation drive shaft 208 that rotates the arm 207. The arm 207 is provided with a terminal wire winding unit 209, a terminal line holding unit 210, and a driving unit 211 for driving the terminal line holding unit 210 at the tip thereof.

The difference from the arm device 6 of the first embodiment is that a rotation drive shaft 208 is provided instead of the rectilinear drive shaft 8. The terminal line winding unit 209, the terminal line holding unit 210, and the driving unit 211 are the same as the terminal line winding unit 9, the terminal line holding unit 10, and the driving unit 11 of the first embodiment.
The arm 207 rotates in the vertical plane with the axis of the rotational drive shaft 208 as the central axis.

In FIG. 19, the state of the position of the arm 207 indicated by a solid line corresponds to step 3 (S03) in the operation flowcharts of FIGS. That is, the wire flyer 12 is rotated to a position where the wire 16 is along the side surface of the core piece 1.
Further, the state of the position of the arm 207a indicated by a dotted line corresponds to step 4 (S04) in the operation flowcharts of FIGS. That is, it corresponds to a state in which the arm 7 is retracted with respect to the core piece 1 and tension is applied to the wire 16. However, in the second embodiment, the arm 207 rotates the arm 207 rearward so as to be separated from the core piece 1 in the vertical plane with the axis of the rotation drive shaft 208 as the central axis. By the rotation of the arm 207, the winding start wire 16a held by the terminal wire winding unit 209 and the terminal wire holding unit 210 also moves rearward, and the path length of the wire 16 becomes longer, so that the wire 16 is tensioned.

Although not shown, a description will be given of the response to Step 10 (S10) in the operation flowcharts of FIGS. 4 and 5, the arm 7 in step 10 (S10) in the operation flow chart of FIG. 5 is moved forward with respect to the core piece 1. This corresponds to rotating 207 forward in the vertical plane so as to approach the core piece 1 in the vertical plane. This returns to the position of the arm 207 represented by the solid line in FIG.
In Step 4 (S04) and Step 10 (S10) of the operation flow diagrams of FIGS. 4 and 5 of the first embodiment, the movement of the arm 7 is changed from the linear movement to the rotational movement of the arm 207. There is no change.

  The “arm drive unit” in the claims corresponds to the “rotary drive shaft 208” in the description of the winding device 200 and the winding method of the second embodiment.

Next, the advantage of changing from the linear movement of the arm 7 of the first embodiment to the rotational movement of the arm 207 will be described.
In FIG. 19, the arm 207 rotates to the position of the arm 207 a, whereby tension can be applied between the terminal wire winding portion 9 and the wire flyer 12. At this time, the wire 16 is pressed against the yoke portion 23 of the core piece 1 and the wire 16 bends at the corner portion of the yoke portion 23. If the relationship of the tension applied to the wire 16 is the same as in the first embodiment, The bending angle is smaller than that in the first embodiment.
For this reason, when starting to wind the wire 16, the slackness of the wire 16 can be further suppressed as compared with the first embodiment.

Further, it may be necessary to adjust the length of the winding start line of the wire 16 in accordance with the change of the product specification. The correspondence in this case will be described with reference to FIGS.
FIG. 20A shows a state in which the unnecessary wire 16 c at the winding start portion is cut by the wire cutter 17. FIG. 20B shows a state in which the arm 207 is rotated rearward and the cut unnecessary wire 16c is conveyed to the disposal area.

The operation flow of FIG. 21 explains the processing steps added when it is necessary to adjust the length of the winding start line, the wire is cut with a wire cutter, and the cut wire is transported to a disposal area and discarded. Yes.
In step 201 (S201), the unnecessary wire 16c is cut by the wire cutter 17.
In step 202 (S202), the arm 207 is rotated rearward and the cut unnecessary wire 16c is discarded in a disposal area provided on the opposite side of the core piece 1.

Step 201 (S201) and step 202 (S202) are added between step 6 (S06) and step 7 (S07) in the operation flow of FIGS.
In the winding method of the second embodiment, step 201 (S201) is an unnecessary wire cutting step, step 202 (S202) is an unnecessary wire discarding step, step 104 (wire first winding step) and step 105 ( It is added during the winding start line opening step).

Next, an advantage of adding a process of cutting and discarding unnecessary wires at the winding start portion in the second embodiment will be described.
In the first embodiment, when a process for cutting and discarding the unnecessary wire at the winding start portion is added, it is necessary to newly add a drive shaft in order to cause the arm 7 to perform another operation. .
However, in Embodiment 2, since the arm 207 can rotate, the unnecessary wire 16c can be discarded without adding equipment. For this reason, the structure of equipment can be simplified.
Further, by performing the process of discarding the unnecessary wire 16c during the operation of winding the wire 16 around the core piece 1, the tact time of the facility can be shortened.

As described above, the winding device according to the second embodiment has a structure in which the arm that has been linearly moved in the winding device according to the first embodiment is rotated. For this reason, the winding device and the winding method of the second embodiment can improve the productivity while improving the winding start line holding force and ensuring the alignment of the windings, as in the first embodiment.
Furthermore, the unnecessary wire at the winding start part can be discarded without adding equipment, simplifying the equipment, and shortening the tact time of the equipment.

  Note that the present invention can be freely combined with each other within the scope of the invention, and the embodiments can be modified or omitted as appropriate.

1, 1a, 1b, 1c, 1d core pieces, 2 rotary core chucks,
3 core chuck rotation drive shaft, 6,206 arm device, 7,207 arm,
8 straight drive shaft, 9,209 terminal wire winding unit, 10,210 terminal line holding unit,
11, 211 Drive unit, 12 wire flyer, 12a wire flyer tip,
14 rotation axis, 16 wires, 16a winding start line, 16b winding end line,
16c Unnecessary wire, 17 wire cutter, 23 yoke part, 24 teeth part,
25 insulating members, 30 openings, 31 connecting parts, 31a convex parts, 31b concave parts,
100, 200 Winding device, 208 Rotation drive shaft.

Claims (8)

A winding device that performs winding on a core piece including a yoke portion and a teeth portion protruding from the yoke portion,
A rotary core chuck for holding the core piece; a wire flyer for winding a wire around the teeth portion of the core piece;
An arm having a terminal wire winding part and a terminal line holding part, and an arm device comprising an arm driving part for linearly moving the arm,
The arm device holds the wire winding start line at the terminal wire winding portion and the terminal wire holding portion, and the arm is separated from the core piece before the wire starts winding. A winding device having a structure in which a drive unit moves linearly and applies tension to the wire. A winding device that performs winding on a core piece including a yoke portion and a teeth portion protruding from the yoke portion,
A rotary core chuck for holding the core piece; a wire flyer for winding a wire around the teeth portion of the core piece;
An arm having a terminal wire winding part and a terminal line holding part, and an arm device comprising an arm driving part for rotating and moving the arm,
The arm device holds the wire winding start line at the terminal wire winding portion and the terminal wire holding portion, and the arm is separated from the core piece before the wire starts winding. A winding device having a structure in which a drive unit rotates and applies tension to the wire. The winding device according to claim 1 or 2, wherein the terminal wire winding portion has a fan-shaped portion in contact with the wire. A winding method using the winding device according to claim 1,
A winding first holding step of holding the winding start wire of the wire by the terminal wire winding portion and the terminal wire holding portion;
A wire flyer preparation rotating step of rotating the wire flyer to a position along the side surface of the core piece;
An arm first moving step in which the arm driving unit linearly moves the arm away from the core piece to apply tension to the wire;
A wire first winding step of winding the wire around the core piece;
A winding start wire releasing step for releasing a winding start wire of the wire held by the terminal wire winding portion and the terminal wire holding portion;
A second winding step of winding the remaining wire around the core piece;
Winding method with A winding method using the winding device according to claim 2,
A winding first holding step of holding the winding start wire of the wire by the terminal wire winding portion and the terminal wire holding portion;
A wire flyer preparation rotating step of rotating the wire flyer to a position along the side surface of the core piece;
An arm first moving step in which the arm driving unit rotates and moves the arm away from the core piece to apply tension to the wire;
A wire first winding step of winding the wire around the core piece;
A winding start wire releasing step for releasing a winding start wire of the wire held by the terminal wire winding portion and the terminal wire holding portion;
And a second winding step of winding the remaining wire around the core piece. Furthermore, an arm second moving step in which the arm driving unit linearly moves the arm so as to approach the core piece,
A winding second holding step for holding the winding end line of the wire by the terminal wire winding portion and the terminal wire holding portion;
The winding method according to claim 4, further comprising: a wire cutting step of cutting a winding end line of the wire between the terminal wire winding portion and the core piece. Furthermore, an arm second moving step in which the arm drive unit rotates to move the arm closer to the core piece,
A winding second holding step for holding the winding end line of the wire by the terminal wire winding portion and the terminal wire holding portion;
The wire cutting method according to claim 5, further comprising: a wire cutting step of cutting a winding end line of the wire between the terminal wire winding portion and the core piece. Between the wire first winding step and the winding start wire releasing step,
An unnecessary wire cutting step of cutting an unnecessary wire at the winding start portion of the wire;
An unnecessary wire disposal step of discarding the cut unnecessary wire in a disposal area;
The winding method according to any one of claims 4 to 7, wherein: is added.

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