JPS6347067B2 - - Google Patents

Description

Detailed Description of the Invention [Field of Industrial Application] The present invention relates to a winding forming device, and more particularly to a winding device having a bending device that bends a wire along a winding form and a clamp device that holds the bent wire. The present invention relates to a forming device.

[Conventional technology]

Conventionally, this type of device uses a stopper to measure a predetermined length of wire, and each time the wire is measured, a bending arm is operated horizontally to bend it at a 90° angle to form a continuous rectangular spiral shaped body. There is a known method in which a mounting table is arranged below the wire rod, which moves forward when the wire is fed out and retreats when the wire is bent, and this mounting table is lowered as the number of wire rods increases (Japanese Patent Application Laid-Open No. 124657-1989).
(see publication).

In addition, a coil winding device is known in which a bending device is in a fixed position, and the bending device bends the wire rod and winds up the formed coil in the direction opposite to the direction of gravity. (See Publication No. 37292).

[Problem to be solved by the invention]

However, in the case of the latter technology, a bending device bends the wire in a fixed position and winds the formed coil in the opposite direction to the direction of gravity, so a mechanism for winding and holding is required. Then,
The larger the coil, the more complex this mechanism becomes.
This has the problem of increasing the size of the device.

Further, in the former technique, the mounting table only moves forward, backward, and up and down, and there is a problem that the weight of the material to be wrapped causes bending, warping, etc., resulting in adverse effects.

Therefore, the present invention was made based on these circumstances, and its first object is to naturally place the coil portion formed after bending the wire on the turntable without applying any special measures. To provide a winding forming device capable of winding a wire.

A second object is to provide a winding forming device that does not cause bending, warping, etc. in the coil wound on the turntable.

[Means to solve the problem]

In order to achieve such problems, the present invention
In a winding forming device that forms a rectangular coil by sequentially bending predetermined parts of wire rods supplied in sequence in the same direction, the device includes a rotatable turntable and a rotatable turntable positioned above the turntable with one end as a support shaft. a swinging beam that is swingable in a plane parallel to the turntable surface; a drive unit that is attached to the other end of the swinging beam and reciprocates on an arcuate rail centered on the support shaft; A bending cart that reciprocates on the swing beam near the middle of the swing beam, and a clamp that moves reciprocably on the swing beam near the other end of the swing beam. At the same time, the bending cart includes a wire guide that guides the wire supplied from the support shaft side of the swing beam along the swing beam, a winding form, and a winding form that guides the wire and is connected to the winding form. a bending device that rotates the wire rod guided by the wire guide through 90 degrees along the winding form to form a bent portion; After the bending portion is formed, the clamp holds the wire near the bending portion in position when the bending cart is moved a predetermined distance toward the support shaft of the swing beam, and the turntable is formed by sequentially forming the bending portion. The winding forming device rotates in the same direction as the wire bending direction of the bending device in conjunction with the swinging of the swing beam so as to hold the shape of the rectangular coil.

[Effect]

The winding forming device configured in this way connects the wire supplied from the supporting shaft side of the swinging beam to the wire guide,
A bending cart equipped with a winding former and a winding device and a clamp are operated to form a rectangular coil and place it on a turntable.

This turntable is rotated in the same direction as the wire bending direction of the bending device in conjunction with the swinging of the swing beam so as to maintain the shape of the rectangular coil.

From this, the wire can be wound down naturally onto the turntable without any special measures, and the unwound rectangular coil can be
The rotation of the turntable and the swinging of the swinging beam associated with this rotation allow the device to be placed on the turntable without bending, warping, or the like.

〔Example〕

Embodiments of the present invention will be described in detail below based on the drawings.

FIG. 1 is a diagram illustrating the principle of a method applied to the winding of a rectangular spiral coil in the apparatus of the present invention.

In Figure 1, the wire rod WL fed along the line segment PP ₁ rotating counterclockwise is bent counterclockwise around the winding form to form right-angled corners one after another, forming a continuous It descends under its own weight as a rectangular spiral coil. This bending process is carried out by a bending device which moves along the line segment PP ₁ with the winding former and rotates counterclockwise around the center point of the winding, so that the formed coil also moves counterclockwise. They are placed one after another on a turntable that rotates.

In order to accurately stack the coils that are formed one after another on the coils that have already been formed without causing excessive warpage or bending, it is necessary to adjust the movement position of the center point Q of the winding form and the wire rod WL in The bending angle should satisfy the following relationship with respect to the rotation angle θ about the center point O of the turntable: V=tan ^-1 (H/I) ...(1) (V is the wire rod supply angle) S = √ ² + ² ...(2) (S is the center point Q of the winding form and the swing center point P of the swing beam
(distance from The distance relationship is as follows: Wire length between the center points of L and W winding forms B = tan ^-1 (L/W) V ₀ = sin ^-1 (L/2F) T = θ + B - V ₀ K =√ ² + ² H=QN=(K/2) sinT I=PN=F-(K/2) cosT X=∠OQN=cos ^-1 (2H/K) However, when θ>90°, X<0 Y =∠PQN=tan ^-1 (I/H) When forming the wire into a continuous rectangular spiral coil, in Fig. 1, the center point Q ₀ of the winding form is connected to the point P on the line segment PP ₁ . The wire rod is located at a distance S ₀ from
Start bending the WL and move the center point of the winding form sequentially along line segment PP ₁ rotating clockwise and counterclockwise (generally indicated by point Q in the figure).
The wire WL is bent by a bending device that rotates counterclockwise with respect to the winding form (generally indicated by an angle Z in the figure). The bending angle at the center point _Q1 of the winding form is
When the bending process is completed at 90°, the bending device is returned and the holding clamp CL is moved by a distance J to hold the bent wire WL. The winding form and the bending device are then moved back along the line segment PP ₁ by a distance L to the position where the bending of the next corner is to be started, at the center point of the winding form.
Position Q ₂ . At this point, the holding clamp CL is released, and the bending process is performed again while controlling the drive of each part so as to satisfy the relationships of equations (1) to (3). In this way, corners perpendicular to the wire WL are continuously formed, and the formed rectangular spiral coil is placed on a turntable that rotates in response to the combined motion of the line segment PP ₁ and the winding center Q. will be placed in sequence.

FIGS. 2 to 5 show an example of a winding forming apparatus according to an embodiment of the present invention for processing a rectangular spiral coil based on the principle of such a winding method. In FIG. 2 showing a side view of the winding forming apparatus, a base 2 swingably provided on a swing support stand 1 has a drum 3 for supplying a wire rod 4 and a drum 3 for straightening the wire rod 4 to be supplied. A brake 6 for controlling the supply of the wire 4 and a tension cylinder 7 for driving the brake 6 to restrain and tension the wire are provided. Further, a swinging beam 8 that can swing clockwise and counterclockwise (as shown in FIGS. 3 to 5) is attached to the base 2, and a bending cart 9 is mounted on the swinging beam 8. is set up so that it can run. The bending trolley 9 is equipped with a winding form 10 and a bending device 11, and this bending device is, for example, the aforementioned Japanese Patent Publication No. 53, which rotates with respect to the winding form 10 and bends the wire along the shape of the winding form 10. −7300
The format disclosed in the above publication can be used. A wire guide 12 holds and guides the wire 4 along the swinging beam 8.

Further, a holding cart 13 is provided so as to be movable along the swing beam 8, and is configured to hold the wire bent by the bending device 11 using a holding clamp 14. The swinging beam 8
A table 16 is provided below on which a rectangular spiral coil 15 that is sequentially processed and formed is placed, and this table 16 is mounted on a turntable 17 to rotate and lower the coil. 15. In addition, in the figure, reference numeral 18 denotes a drive unit for swinging the swing beam 8, and is provided on a rail 19 via a roller 20.

The operation of continuously forming a wire into a rectangular spiral coil in such a winding forming apparatus will be described. In FIG. 3, a device 1 bends a wire 4 fed from a drum 3 along a swinging beam 8.
It is held by the first clamp member and the bending process is started. The center point Q ₀ of the winding form 10 is set by the swing angle of the swing beam 8, that is, the supply side angle ∠OPQ ₀ of the wire 4, and the beam position ₀ of the bending cart 9. Further, the rotation angle of the table 16 for receiving the coil 15 as a processed product with respect to the center point O is set by the rotation of the turntable 17. In this case, when the wire 4 is already wound, the holding clamp 14 is moved to a position where it does not interfere with the coil 15.

Next, the swinging beam 8 is rotated counterclockwise by the drive unit 18, and the bending device 11 is moved around the winding form 10 while the bending cart 9 is traveling along the swinging beam 8 to the center point Q of the winding form. The wire rod 4 is rotated counterclockwise, and the wire rod 4 is bent around the winding form 10 while the bulge is held down by the wire rod guide 12 (FIG. 4). The wire rod 4 bent here falls onto the table 16 by its own weight, and the amount of movement and rotation of each part is expressed by the equations (1) to (3) already described with respect to the rotation angle of the turntable 17. By controlling the wire rods 4 so as to satisfy the following, the wire rods 4 are sequentially placed on the table 16 as rectangular spiral coils 15 without causing excessive warping or bulging. When the bending of the wire rod is completed, the clamp of the bending device 11 is released, the bending device 11 is rotated from the winding form 10, and then the holding cart 13 is run along the swing beam 8 to bend the wire rod by the holding clamp 14. Hold the folded part in step 4. Next, the bending cart 9 is moved to the position of the next bending portion of the wire 4, and the winding form 10 is positioned at its center point _Q2 (FIG. 5). Here, the wire rod 4 is held by the brake 6, and the brake 6 is driven toward the drum 3 side by the tension cylinder 7, so that an appropriate tension is applied to the wire rod 4 between the holding clamp 14 and the winding form 10. to prevent the dimensions of the coil 15 from changing due to its own weight. Next, the wire 4 is held again by the clamp of the bending device 11, and then the holding clamp 14 is released and the holding cart 13 is moved to a position where it does not interfere with the coil 15. Here, the brake 6 is released so that the wire rod 4 is unwound as the bending cart 9 travels. The tension cylinder 7 is a bending cart 9
It is returned to its original position as the vehicle travels.

At this point, the state returns to the state where the first bending process was started, and the same procedure is repeated to sequentially bend the four corners of the rectangular spiral coil.During this process, it is sequentially placed on a turntable that rotates once due to its own weight. However, the windings are continuously formed without any unnecessary warping or bending in relation to the coils that have already been wound down on the turntable.

FIG. 6 shows the swinging of the swinging beam 8 and the bending carriage 9.
2 shows a control device for controlling the movement of the bending device 11 and the rotation of the bending device 11 with respect to the rotation angle of the turntable 17 so as to satisfy the relationships expressed by equations (1) to (3).
In the figure, commands from the operation panel 21 and control circuit 22
A motor M for rotating the turntable is supplied via amplifiers 24 to 28 to an arithmetic output circuit from the arithmetic circuit 23 which is operated by the arithmetic circuit 23 to calculate various values satisfying the above-mentioned equations (1) to (3). _1. Motor for beam swinging
M ₂ , motor for running the bending cart M ₃ , motor for rotating the bending device M ₄ , and motor for running the holding cart
_M5 are connected respectively.

The output (rotational position and running position) from each motor _M1 to _M5 is detected via the respective rotation detectors 29 to 33 and position detectors 34 to 38, and is fed back to the amplifiers 24 to 28 for appropriate control. It is designed to give

As described above, in the winding forming apparatus for processing a wire rod into a rectangular spiral coil according to an embodiment of the present invention, a swinging beam 8 having a supply path for the wire rod 4 and swinging in a horizontal plane, and a center point of a winding form 10 are provided. a bending device 11 rotating in the same direction as the swinging beam around
a bending cart 9 provided so as to be movable along the longitudinal direction with respect to the swinging beam 8; and the bending device 11 provided below the swinging beam 8.
and a turntable 17 that rotates in the same direction as the turntable 1, and the amount of movement of the center point of the winding form 10 in the bending cart and the amount of bending of the wire rod
7, the supplied wire 4 can be sequentially bent by the bending device 11 along the shape of the winding die 10 to form a rectangular spiral coil 15. The coil 15 formed in this way is attached to the turntable 1.
The coil windings can be continuously formed by placing the wires one after another on the table 16 of No. 7 without causing any unnecessary warping or bending.

Further, in this embodiment, the turntable 17
oscillating beam 8, bending trolley 9,
The drive amount of each part such as the bending device 11 and the holding cart 13 is controlled by the above equation (1) which defines the relationship between these parts.
A control device that calculates (3) based on specific data input from the operation panel 21 and rotates the motors M ₁ to _{M 5} that drive each part based on the output from the calculation circuit 23. This can be done accurately by Furthermore, the apparatus of this embodiment has an extremely simple structure in which a bending cart 9 and a holding cart 13 are movably provided to the swinging beam 8 for supplying the wire rod, and a turntable 17 is arranged below the bending cart 9 and the holding cart 13. Therefore, rectangular spiral coils can be continuously formed without requiring any complicated and large-scale functions even for large-sized coils.

In the above embodiments, the present invention has been described with respect to the formation of continuous rectangular spiral coils of the same size, but the present invention is not limited to such coils, but can also be applied to field windings of generators, electric motors, etc. It can also be used as an apparatus for forming a coil 21, for example as shown in FIG. 7, in which each winding has different dimensions. When forming such a coil, it is sufficient to input the vertical and horizontal dimensions, which change for each winding of the coil, as a command input from the operation panel 21 of the control device shown in FIG. If data regarding changing dimensions and shapes are programmed in advance and stored in the control device, windings can be formed completely automatically. Furthermore, the present invention can be applied not only to coil winding but also to the formation of a stator core of a rotary motor.

〔Effect of the invention〕

As described above, according to the winding forming device of the present invention,
The formed coil can be wound naturally onto the turntable without special measures.

In addition, bending, warping, etc. can be avoided during the unwinding.

[Brief explanation of the drawing]

FIG. 1 is an explanatory diagram showing the principle of the winding system used in the device of the present invention, FIG. 2 is a side view of an embodiment of the present invention, and FIGS. 3 to 5 are plan views showing the operating mode of the embodiment, respectively. FIG. 6 is a circuit diagram of a control device used in the embodiment, and FIG. 7 is an explanatory diagram showing a coil that can be formed by applying the present invention. 4... Wire rod, 8... Swinging beam, 9... Bending truck, 10... Winding form, 11... Bending device, 13...
Holding cart, 15...coil, 16...table,
17... Turntable.

Claims (1)

[Scope of Claims] 1. In a winding forming device that forms a rectangular coil by sequentially bending predetermined portions of wire rods supplied in the same direction, a rotatable turntable and an upper part of the turntable are provided. a swinging beam that is positioned at one end and can swing in a plane parallel to the turntable surface with one end as a spindle; and a swinging beam that is attached to the other end of the swinging beam and that swings on an arcuate rail centered on the spindle. a drive unit that reciprocates, a bending cart that reciprocates on the swing beam near the middle part of the swing beam, and a bending truck that moves reciprocally on the swing beam near the other end of the swing beam. The bending cart includes a wire rod guide that guides the wire supplied from the support shaft side of the swing beam along the swing beam, a winding former, and a wire rod that guides the wire rod supplied from the spindle side of the swing beam. a bending device that guides the wire and reciprocates through 90 degrees with respect to the winding form; the bending device rotates the wire guided by the wire guide through 90 degrees along the winding form; The clamp holds the wire near the bent portion in position when the bending cart is moved a predetermined distance toward the supporting shaft of the swing beam after the bent portion is formed, and the turntable A winding that rotates in the same direction as the wire bending direction of the bending device in conjunction with the swinging of the swinging beam so as to place a rectangular coil formed by sequentially forming bent portions and maintain its shape. Line forming device.