JP2942700B2 - Coil winding machine - Google Patents

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 winding a wire around a coil bobbin to produce a coil, and more particularly to a mechanism for winding the end of the wire around a terminal provided on the bobbin after winding. .

[0002]

2. Description of the Related Art In a winding operation on a bobbin required for manufacturing a coil, it is necessary to bind a wire to terminals provided on a flange at one end of the bobbin before and after the start of the winding.

In an automatic winding machine that automatically performs winding on a bobbin, this tying operation is performed, for example, by a nozzle that sends out a wire for winding goes around the terminal several times. I have.

[0004] When a wire is formed by twisting a thin wire such as a thick wire or a litz wire, the wire is wound in layers from the base end to the tip of the terminal as the nozzle orbits the terminal. In the tying work before winding, after the wire is wound around the terminal, the wire is wound directly on the bobbin, so the starting end of the wire is sandwiched between the wire guided from the terminal to the bobbin body and the flange at the base end of the terminal and unraveled Never.

[0005] On the other hand, in the tying work after winding, the wire is guided from the bobbin body to the terminal and wound from the base end to the tip of the terminal. It cannot be pinched.

For this reason, it is necessary that the end of the winding comes to the base end side of the terminal. However, when the wire is entangled with the terminal only by moving the nozzle, the wire and the terminal from the bobbin body to the terminal are connected. Such a tangling operation is impossible because of interference with the wire rod extending from the nozzle to the nozzle.

Therefore, for example, in Japanese Utility Model Laid-Open No. 5-55528, the wound wire is not immediately tied to the terminal, but is tied once to a separately provided temporary tying pin, and then the temporary tying pin is inverted. A mechanism has been proposed in which the tip of the terminal is brought into coaxial contact with the terminal and the binding portion is transferred from the temporary binding pin to the terminal.

In the state where the wire is transferred to the terminal, the end of the entangled wire is sandwiched between the wire from the bobbin body to the terminal and the flange, so that the end of the wire is locked by the terminal, The entangled part cannot be unraveled.

[0009]

In this binding mechanism, the transfer of the binding portion from the temporary binding pin to the terminal is performed by moving the nozzle. In other words, by moving the side of the temporary tying pin and the terminal at the coaxial position in parallel with the axis, the portion tied to the temporary tying pin is pulled and transferred to the terminal. For this purpose, the temporary binding pin is formed to have a larger diameter than the terminal.

However, this transfer operation, which is performed only by pulling one end of the wire rod, has poor reliability, and there is a possibility that the entangled portion does not move smoothly from the temporary tying pin to the terminal.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and has as its object to provide a terminal binding mechanism that can reliably transfer a wire binding portion from a temporary binding pin to a terminal. .

[0012]

According to a first aspect of the present invention, there is provided a nozzle for supplying a wire for winding to a bobbin, a means for moving the nozzle, and a temporary string for winding the wire after winding on the bobbin. A coil winding machine comprising a pin, a means for rotating the temporary binding pin to change the direction of the tip, and a means for moving the temporary binding pin. And a means for driving the discharging member in the axial direction while freely mounting the discharging member in the axial direction.

According to a second aspect of the present invention, in the first aspect of the present invention, a notch for tying the wire is formed at the tip of the temporary tying pin.

According to a third aspect of the present invention, in a coil winding machine provided with a spindle that rotates by mounting a bobbin and a nozzle that supplies a wire to the bobbin, the coil winding machine moves in three axial directions with respect to the spindle. Two arms are provided, one of these arms supports a nozzle on one arm A, and the other arm B has a temporary tying pin for winding a wire rod wound on a bobbin, and a temporary tying pin. Means for changing the direction of the tip by rotating the wire, a wire discharging member attached axially freely to the outer periphery of the temporary binding pin for pushing out the wire wound around the temporary binding pin in the distal direction, and a wire discharging member. Means for driving in the axial direction.

According to a fourth aspect of the present invention, in a coil winding machine provided with a spindle for mounting and rotating a bobbin and a nozzle for supplying a wire to the bobbin, the coil winding machine moves in three axial directions with respect to the spindle. Two arms are provided, one of these arms supports a nozzle on one arm A, and the other arm B has a temporary tying pin for winding a wire rod wound on a bobbin, and a temporary tying pin. Means for changing the direction of the tip by rotating the wire, a wire discharging member attached axially freely to the outer periphery of the temporary binding pin for pushing out the wire wound around the temporary binding pin in the distal direction, and a wire discharging member. Means for driving in the axial direction, and a wire presser for temporarily pressing and holding the wire supplied from the nozzle on the outer periphery of the bobbin is supported by the driving means integrally with the wire discharging member.

According to a fifth aspect of the present invention, in a coil winding machine having a spindle which is mounted on a bobbin and rotates and a nozzle which supplies a wire to the bobbin, the coil winding machine moves in three axial directions with respect to the spindle. Two arms were provided, one of these arms supported a nozzle on one arm A, the other arm B provided a chuck and a means for rotating the chuck, and finished winding the bobbin. A temporary tying pin for winding the wire, a discharging member mounted axially freely on the outer circumference of the temporary tying pin for pushing the wire wound around the temporary tying pin in a distal direction, and driving the discharging member in the axial direction And a gripper gripped by the chuck are formed on a movable base.

According to a sixth aspect of the present invention, in a coil winding machine provided with a spindle which rotates by mounting a bobbin and a nozzle which supplies a wire to the bobbin, the coil winding machine moves in three axial directions with respect to the spindle. Two arms are provided, one of these arms supports a nozzle on an arm A, and the other arm B moves along a vertical plane for transferring a bobbin between a conveyor and a spindle for transferring a bobbin. A rotatable bobbin transport jig and a means for rotating the bobbin transport jig are provided. The bobbin conveying jig supports a wire discharging member mounted on the outer periphery of the temporary binding pin that is pushed out in the axial direction so as to be freely movable in the axial direction, and means for driving the wire discharging member in the axial direction.

[0018]

According to the first aspect of the present invention, after the wire rod wound on the bobbin is wound around the temporary tying pin, the temporary tying pin is coaxially moved with the terminal by the moving means and the rotating means. Move so that they are adjacent. By driving the wire discharging member at this position and pushing out the wrapped portion toward the tip of the temporary tying pin, the wrapped portion can be reliably and quickly transferred to the terminal. As a result, in the terminal, the beginning of the entanglement of the wire is located on the distal end side of the terminal, the end of the entanglement is sandwiched between the beginning of the entanglement and the base end of the terminal, and the entangled portion cannot be unraveled.

According to the second aspect of the present invention, the wire rod is entangled with the notch at the tip of the temporary tying pin, so that the tying operation required for cutting the wire material is performed by the dedicated tying pin. Can be carried out without providing. The wire remaining at the tip of the pin is removed by driving the wire discharging member.

According to the third aspect of the present invention, the nozzle is supported on the arm A which moves in three axial directions, and the similar arm B is provided with the temporary tying pin, the wire discharging member and the driving means therefor. The pin can be easily moved in three axial directions.

According to the fourth aspect of the present invention, it is possible to perform different operations such as wire pressing and temporary tying using the same driving means.

According to the fifth aspect of the present invention, since the temporary tying pin is attached to the base independent of the arms A and B, the temporary tying pin can be stored in a place where it does not interfere with other operations when not in use. .

According to the sixth aspect of the present invention, it is possible to perform different operations such as transporting the bobbin and tentatively using the same rotating means.

[0024]

FIG. 1 shows a first embodiment of the present invention.

As shown in FIG. 1, the bobbin 3 includes a body 3E around which a litz wire is wound, a flange 3D defining both ends thereof, and a terminal 3B provided on the flange 3D. The bobbin 3 is mounted on a spindle (not shown), and is rotationally driven through the spindle, so that the litz wire 60 supplied from the nozzle 13 is wound around the body 3E.

The litz wire 60 is entangled with the terminal 3B again at the end of winding on the body 3E. At this time, FIG.
Is used.

The tying mechanism is such that a temporary tying pin 19 is supported by a moving member 61 which moves in three axial directions, and a sleeve-shaped wire discharging member driven in the axial direction is provided on the outer periphery of the tentative tying pin 19. 22 is attached. The wire discharging member 22 is a moving member 61
By moving the wire discharging cylinder 50 attached to the temporary binding pin 19, the temporary binding pin 19 moves in the axial direction along the outer circumference.

The moving member 61 is shown in FIGS. 1 (a) and 1 (b).
As shown in the figure, the temporary binding pin 19 is supported by a rotation function (not shown) so as to invert the temporary binding pin 19 within a range of 180 degrees up and down along the vertical plane.

Next, the operation will be described.

When the litz wire 60 is wound around the body 3E of the bobbin 3, the temporary tying pin 19 is disposed above the bobbin 3 with the tip thereof facing upward by moving the moving member 61 as shown in FIG. By rotating the nozzle 13 several times around the temporary binding pin 19, the litz wire 6 is attached to the temporary binding pin 19.
Wrap 0. Since the litz wire 60 is formed by twisting a thin wire into a thick wire, the litz wire 60 is wound around the temporary tying pin 19 in a layered manner, and the winding start is located downward and the winding end is located upward. In this state, the wire discharging member 22 is connected to the temporary binding pin 19.
Is located at the base end.

Next, as shown in FIG. 1B, the moving member 61 is rotated to invert the tip of the temporary binding pin 19 downward.

Then, as shown in FIG. 1C, the moving member 61 is moved so that the tip of the temporary binding pin 19 comes into contact with the tip of the terminal 3B, and as shown in FIG. 50 drives the wire discharging member 22 downward. In this state, the winding start of the litz wire 60 is positioned upward and the winding end is positioned downward, and the sleeve-shaped discharge wire member 22 moves downward, so that the litz wire 19 on the temporary binding pin 19 is moved. The loop portion is pushed out downward, and the terminal 3 located coaxially
It moves to the outer periphery of B.

As described above, since the sleeve-shaped wire discharging member 22 pushes the loop portion of the litz wire 60 downward, the movement of the loop portion is performed reliably and quickly.

When the movement is completed, the winding end portion of the litz wire 60 is sandwiched between the upper litz wire 60 and the flange 3D of the bobbin 3. Therefore, the litz wire 60 wrapped around the terminal 3B is maintained as it is without being unwound.

A litz wire 19 is connected to the terminal 3
After the transfer to B, the moving member 61 is moved to move the temporary binding pin 19 away from the terminal 3B as shown in FIG. 2
Return 2 to its original position.

FIGS. 2 to 4 show a second embodiment of the present invention.

FIG. 2 shows a coil winding machine for automatically winding a coil. This winding machine performs operations such as winding and taping on the bobbin 3 by moving the arms 6 and 7 in a three-dimensional direction.

That is, the coil bobbin 3 conveyed by the bobbin conveying jig 2B on the conveyor 2 provided on the base 1 is received and the winding operation is performed, and after the winding is completed, the bobbin 3 is re-mounted on the conveyor 2. The work up to delivery to the bobbin transport jig 2B is performed.

The winding machine has a spindle 4 on which the bobbin 3 is mounted for winding operation. The spindle 4 is connected to a motor (not shown) built in a support 5 fixed to the base 1. An axial through-hole is formed in the bobbin 3, and the bobbin 3 is mounted on the spindle 4 via a bobbin insertion jig 3C inserted into the through-hole as shown in FIG. The bobbin insertion jig 3C is a member having a shaft protruding in both axial directions from both ends of a cylinder having substantially the same diameter as the body 3E. It is inserted into the transport jig 2B. An annular groove 3A is formed in the cylindrical portion of the bobbin insertion jig 3C.

The arms 6 and 7 are arranged on both sides of the support 5.

The moving device of the arm 6 comprises an X-axis motor 8, a Y-axis motor 9 and a Z-axis motor 10. The moving device moves the arm 6 arbitrarily in the three-dimensional direction with respect to the base 1. The arm 7 is also arbitrarily moved in a three-dimensional direction by the same X-axis motor 11, Y-axis motor and Z-axis motor 12 not shown.

As shown in FIG. 3, a nozzle 13 is supported at the tip of the arm 7 via a nozzle reversing cylinder 14 and a bracket 15. The nozzle reversing cylinder 14 is a rotary actuator operated by air pressure, has a rotation axis parallel to the Y axis in FIG. 2, and rotates the nozzle 13 in a direction shown by an arrow in FIG.

The nozzle 13 feeds a litz wire 60 supplied from a wire feeder (not shown) with a predetermined tension toward the bobbin 3 from the tip. The bobbin 3 rotates integrally with the spindle 4 to rotate the bobbin 3. The litz wire 60 is wound around.

A nipper cutter 16 for cutting the litz wire 60 is attached to the bracket 15 to the side of the nozzle 13 via a nipper vertical cylinder 17.

As shown in FIG. 4, the arm 6 is provided with a holding member 18 for holding the bent portion of the litz wire 60 against the body 3E of the bobbin 3 and holding the bending portion of the litz wire 60 near the base end, and a temporary tying pin 19. Supported through. Holder 1
Reference numeral 8 denotes an arm-shaped member that projects horizontally toward the bobbin 3 and is supported via an air cylinder 50 so as to be able to expand and contract in the Z-axis direction in FIG. Litz wire 6 at the tip of the temporary binding pin 19
A V-shaped cut 19A for tying 0 is formed.

The wire discharging member 22 is driven integrally with the presser 18 by the air cylinder 50 and slides up and down along the temporary tying pin 19.

Further, a bobbin transfer jig 20 is supported at the tip of the arm 6 as an auxiliary tool via a jig reversing cylinder 21.

The jig reversing cylinder 21 is a rotary actuator that operates by air pressure, has a rotation axis parallel to the Y axis in FIG. 2, and moves the bobbin transfer jig 20 in a direction of approximately 90 degrees in the direction indicated by the arrow in FIG. Rotate with.

The bobbin transfer jig 20 has a substantially L-shaped cross section, a tip bent at 90 degrees is formed in a substantially U-shaped fork shape, and an end is formed in an annular jig 3C formed in the bobbin 3 insertion jig. The bobbin 3 is held by fitting into the groove 3A, and the bobbin 3 is rotated between the vertical position and the horizontal position shown in FIG.

As shown in FIG. 2, the winding machine further includes a taping unit 36 for fixing the litz wire bending portion to the body 3E of the bobbin 3 with a piece of tape, and a taping for winding an insulating tape around the body 3E. And a unit 23.

In this winding machine, prior to the winding operation, the bobbin transfer jig 20 receives the bobbin 3 from the bobbin transport jig 2B on the conveyor 2 by the movement of the arm 6, and mounts the bobbin 3 on the spindle 4.

Thereafter, the bobbin 3 is wound by the litz wire 60 supplied from the nozzle 13, and the litz wire 60 is tied to the temporary tying pin 19 provided on the arm 6 in advance. This tying work can be easily performed by using the V-shaped notch 19A at the tip of the temporary tying pin 19.

In this state, the nozzle 13 is moved to move the terminal 3
After the litz wire 60 is tied to B, the litz wire 60 from the temporary tying pin 19 to the terminal 3E is connected with the nipper cutter 16 to the terminal 3E.
And cut near. The broken end of the litz wire 60 remaining on the temporary binding pin 19 is removed by driving the wire discharging member 22 in the distal direction.

The litz wire 60 entangled with the terminal 3 is guided to the body 3E of the bobbin 3, and is bent in the circumferential direction by the holding member 18 and the taping unit 36. Then, the rotation of the spindle 4 causes the body of the bobbin 3 to rotate. It is wound around the part 3E.

After the completion of the winding, the arm 6 is moved, and the temporary binding pin 19 is used in the same manner as in the first embodiment, and the litz wire 6 is used.
0 is tied to the terminal 3B. The rotation of the temporary binding pin 19 is performed by the rotary actuator 62.

After completion of the work of tying to the terminal 3E,
The temporary tying pin 19 is rotated so that the tip is directed upward again, and the litz wire 60 led from the terminal 3B is tied to the temporary tying pin 19 again. Then, the litz wire 60 is cut by the nipper cutter 16 in the vicinity of the terminal 3E. This allows
Complete coil winding work.

The litz wire 60 coming out of the nozzle 13 is entangled with the temporary entanglement pin 19 in the same manner as when the winding operation of the bobbin 3 is started. In this state, the winding to another bobbin 3 or the same bobbin 3 is performed. For another layer.

In this embodiment, the temporary tying pin 19 is used not only for tying the litz wire 60 to the terminal 3E at the end of the winding work but also for discarding the litz wire 60 required for cutting the litz wire 60 by the nipper cutter 16. Do the work. Therefore, a special disposal pin is not required, and the configuration of the auxiliary tool necessary for the winding operation can be simplified accordingly.

FIG. 5 shows a third embodiment of the present invention. In this method, a temporary tying pin 19 having a wire discharging member 22 and an air cylinder 50 for driving the wire discharging member 22 are attached to an independent base 63, and a rotary actuator 62 is attached to the arm 6 similar to the second embodiment. The chuck 64 is supported via the. The base 63 is provided with a holding portion 65 for holding by the chuck 64.

The base 63 is moved to the place of use by moving the arm 6 in a state where the grip portion 65 is gripped by the chuck 64. Therefore, it can be stored in a place that does not interfere with the work during other work.

FIG. 6 shows a fourth embodiment of the present invention. Here, the temporary binding pin 19 provided with the wire discharging member 22 and the air cylinder 50 is attached to the bobbin transfer jig 20, and the bobbin transfer jig 20 is rotated by the jig reversing cylinder 21 into 360.
It is configured to be rotatable over time.

As described above, by using the bobbin transfer jig 20 as a mechanism for reversing the temporary tying pin 19, a dedicated rotary actuator 62 is not required, and the configuration of the auxiliary tool can be simplified.

When the temporary binding pin 19 is used, the bobbin 3 is not delivered. On the other hand, when the bobbin 3 is delivered, the temporary binding pin 19 is not used.
Is instructed to the bobbin delivery jig 20 without inconvenience in operation.

[0064]

As described above, the invention according to claim 1 is
A wire discharging member that pushes out a winding portion of the wire in a tip direction,
Since the mechanism for driving the discharging member in the axial direction is provided, the entangled portion of the wire entangled with the temporary tying pin can be reliably transferred to the terminal of the bobbin. Therefore, it is easy to lock the terminal such as a thick wire or a litz wire, and the coil winding operation using these wires is made more efficient.

According to the second aspect of the present invention, since the notch is formed at the tip of the temporary tying pin, the wire is entangled with this notch, so that the tying operation required for cutting the wire is performed by a special purpose. This can be performed without providing a tying pin. Therefore, the number of components required by the winding machine is reduced, and the cost and space required for disposing these components can be saved. According to the third aspect of the present invention, the nozzle is supported on the arm A that moves in the three axial directions, and the similar arm B is provided with the temporary tying pin, the discharging member, and the driving means therefor. And the temporary binding pin can be independently moved in three axial directions.

According to the fourth aspect of the present invention, since the wire presser and the discharging member are driven by the same driving means, the number of driving means required by the winding machine is reduced, and the cost required for arranging them is reduced. And save space.

According to the fifth aspect of the present invention, the temporary tying pin is attached to the movable base, and the chuck or the base provided on the arm B is gripped when in use. It is stored in a position where it does not interfere with other work, and the work space can be used efficiently.

According to the sixth aspect of the present invention, since the bobbin conveying jig and the temporary tying pin are supported by the arm B via the same rotating means, a plurality of different operations can be performed using the same rotating means. This can be performed, and the number of components required by the winding machine is reduced, so that the cost and space required for these arrangements can be saved.

[Brief description of the drawings]

FIG. 1 is a perspective view of the operation of a terminal binding mechanism according to a first embodiment of the present invention.

FIG. 2 is an overall perspective view of a coil winding machine showing a second embodiment of the present invention.

FIG. 3 is an enlarged perspective view of an arm supporting the nozzle.

FIG. 4 is an enlarged perspective view of an arm for supporting a temporary binding pin.

FIG. 5 is an enlarged perspective view of an arm supporting a temporary tying pin according to a third embodiment of the present invention.

FIG. 6 is an enlarged perspective view of an arm supporting a temporary binding pin according to a fourth embodiment of the present invention.

[Explanation of symbols]

 2 Conveyor 3 Bobbin 3B Terminal 4 Spindle 6, 7 Arm 13 Nozzle 18 Wire Holder 19 Temporary Tie Pin 19A Notch 20 Bobbin Delivery Jig 21 Jig Reversing Cylinder 22 Discharge Member 50 Air Cylinder 60 Litz Wire 62 Rotary Actuator 63 Base 64 chuck 65 gripper

Claims (6)

(57) [Claims] 1. A nozzle for supplying a wire for winding to a bobbin, means for moving the nozzle, a temporary tying pin for winding the wire having been wound on the bobbin, and a tip for rotating the temporary tying pin. In the coil winding machine provided with a unit for changing the direction of the temporary binding pin and a unit for moving the temporary binding pin, the discharging member for pushing the winding portion of the wire around the outer periphery of the temporary binding pin in the distal direction is moved in the axial direction. A coil winding machine which is freely mounted and has means for driving the discharging member in the axial direction. 2. The coil winding machine according to claim 1, wherein a notch for tying the wire is formed at the tip of the temporary tying pin. 3. A coil winding machine provided with a spindle that rotates by mounting a bobbin, and a nozzle that supplies a wire to the bobbin, wherein two arms that move in three axial directions with respect to the spindle are provided. The nozzle is supported on one arm A of these arms, and the other arm B has
A temporary tying pin for winding the wire after winding the bobbin, and means for rotating the temporary tying pin to change the direction of the tip,
It is characterized by comprising a discharging member mounted axially freely on the outer periphery of the temporary binding pin for pushing out the wire wound around the temporary binding pin in the distal direction, and a means for driving the discharging member in the axial direction. And coil winding machine. 4. A coil winding machine provided with a spindle mounted on and rotated by a bobbin, and a nozzle for supplying a wire to the bobbin, wherein two arms respectively moving in three axial directions with respect to the spindle are provided. The nozzle is supported on one arm A of these arms, and the other arm B has
A temporary tying pin for winding the wire after winding the bobbin, and means for rotating the temporary tying pin to change the direction of the tip,
A discharge wire member that is mounted on the outer periphery of the temporary binding pin that extrudes the wire wound around the temporary binding pin in the distal direction so as to be freely movable in the axial direction, and a unit that drives the discharge wire member in the axial direction. A coil winding machine, wherein a wire presser for temporarily pressing and holding the supplied wire material on the outer periphery of the bobbin is supported by the driving means integrally with the wire discharging member. 5. A coil winding machine provided with a spindle for mounting and rotating a bobbin and a nozzle for supplying a wire to the bobbin, wherein two arms are provided which move in three axial directions with respect to the spindle. One of these arms supports a nozzle on one arm A, the other arm B has a chuck and a means for rotating the chuck, and a temporary tying pin for winding a wire after winding on a bobbin. A wire discharging member mounted on the outer periphery of the temporary binding pin that extrudes the wire wound around the temporary binding pin in the distal direction so as to be freely movable in the axial direction;
A coil winding machine wherein a means for driving the wire discharging member in the axial direction and a gripper gripped by the chuck are formed on a movable base. 6. A coil winding machine having a spindle mounted on a bobbin and rotating, and a nozzle for supplying a wire to the bobbin, wherein two arms are provided, each of which moves in three axial directions with respect to the spindle. A bobbin transport jig rotatable along a vertical plane for transferring a bobbin between a spindle and a conveyor for transporting the bobbin to the other arm B while supporting the nozzle on one of the arms A. And a means for rotating the bobbin transport jig, a temporary tying pin for winding the wire rod wound on the bobbin, and a temporary tying pin for pushing out the wire rod wound on the temporary tying pin in the distal direction. A coil winding machine wherein a bobbin conveying jig supports a wire discharging member mounted on an outer periphery thereof so as to be freely movable in an axial direction, and means for driving the wire discharging member in an axial direction.