JPH07192946A - Automatic core assembly machine - Google Patents

Abstract

PURPOSE:To prevent inadvertent bending of a thin plate for forming a core by conducting a step for fixing a plurality of assembly bases on a rotary table, a step for stacking works on the assembly base, a step for arranging the works and applying adhesive thereto, and a step for carrying out an assembled core simultaneously. CONSTITUTION:A work 7 is carried onto an assembly base 9 at a carry-in position A and slipped down through a chute 6 onto a seat 9a where the works 7 are stacked. The stacked works 7 are then pressed against positioning pieces 9b, 9c by means of a pad 10b fixed to the forward end of piston shaft 10a of X-axis cylinder unit 10x and Y-axis cylinder unit 10y thus flattening the surface of the stack. An ultraviolet curing adhesive is then applied onto the surface of stacked works 7 through a nozzle 12a by means of a coater 12 and then the adhesive is cured sufficiently through irradiation with ultraviolet rays. Subsequnetly, the stack is carried to a carry-out position 13 and transferred from the seat 9 onto a conveyer by means of a carry-out cylinder.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for automatically assembling an iron core such as a transformer or a transformer.

[0002]

2. Description of the Related Art Iron cores for transformers, transformers, etc. are generally formed by stacking thin plates (hereinafter referred to as "workpieces") obtained by cutting thin plates made of a magnetic material such as permalloy into shapes such as E and I. It has a structure assembled in a day shape. by the way,
Along with the miniaturization of electronic devices, miniaturization of transformers, transformers, etc. is also progressing. For example, a compact one having a side of about 10 mm × 2 mm and a thickness of about 0.2 mm is used. Therefore, there is a problem that the thin plate is easily deformed by a slight impact or if it is inadvertently tampered with by hand.

By the way, a thin plate for an iron core has a crystal coating layer formed by annealing the surface, and when the work formed into the E-shape, I-shape or the like is bent or scratched, the coating layer is destroyed and the iron core is formed. Function is reduced. Therefore, conventionally, since the assembly is performed manually, the productivity is low, and it is difficult to secure a skilled worker.

[0004]

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and it is an object of the present invention to provide an automatic iron core assembling apparatus in which thin iron core plates are laminated and integrated.

[0005]

SUMMARY OF THE INVENTION To achieve the above object, an iron core automatic assembling apparatus according to the present invention has a structure in which a plurality of assembling tables are attached to a rotary table at equal intervals and the assembling table is assembled at a position where it stops. A device for arranging the devices in the order of steps and integrating a plurality of iron-core plate-shaped works stacked on an assembly table with an adhesive, wherein the device includes the assembly table, a pedestal for mounting the work, and a work. And a positioning piece that is in contact with at least two sides of the work piece, and the assembling apparatus stacks the positioning piece in the order of steps by a work-carrying-in device that stacks the positioning pieces so that predetermined sides of the work face each other, and pushes a pad toward the positioning piece. It is formed by a device for aligning the stacked surfaces of the work, a device for applying an adhesive to the stacked surface of the work, and a device for unloading the bonded work from the assembly table.

[0006] It is preferable to operate all the above-mentioned devices all at once when the turntable stops, but it is also possible to operate them one after the other depending on the circumstances. The normal shape of the work is E-shape, I-shape, etc., and can be aligned in the vertical direction by aligning two sides. However, the present invention is not limited to this, and can be applied to works of various shapes.

The work carrying-in device supplies, for example, one by one to an assembly table by using a high-frequency parts feeder, shooter, robot hand, etc., aligns the works in a certain direction, and drops the work from the shooter onto the assembly table. The work can be carried out by such means as grasping the works one by one with the robot hand and stacking them on the assembly table. Further, by detecting the number of works to be supplied to the assembly table, the number of works stacked on the assembly table can be controlled to a predetermined number.

It is necessary to control the posture when supplying the work to the assembly table. In the case of a work such as an I-shaped work, a groove slightly wider than the width may be provided so as to exclude any work other than the work that is guided and fitted into the groove.
For complicated shapes such as molds, work pieces that are not in the correct posture should be caught on the pins and flipped if necessary to control the correct posture or drop the posture that is not correct depending on the center of gravity. The posture is controlled by various means, such as by eliminating it.

The adhesive is not particularly limited, but it is preferable to use a reactive resin such as an ultraviolet curable adhesive, since no harmful gas is generated and the curing is fast. Other adhesives that can be used include various resin-based bonds. The adhesive application device is extruded,
Conventionally used materials such as spraying and rollers can be appropriately selected and used.

The laminated surface on which the adhesive is applied is generally a vertical surface. Therefore, although depending on the fluidity of the adhesive, it is preferable to incline the application surface so that the applied adhesive does not flow down, but the assembly table can be inclined and fixed. In carrying out the present invention, for example, a room temperature curing type 2
When it takes a certain amount of time to cure the liquid adhesive or the like, or when a step of curing the adhesive such as light irradiation is required, a curing step is provided after the coating step.

After the plurality of works are aligned on the assembly table, it is preferable to press the work table from above by a cylinder device or the like so as not to cause positional deviation due to rotation of the rotary table. The automatic iron core assembling apparatus can be applied to the assembly of various iron cores such as iron cores for electromagnets as well as iron cores such as transformers and transformers.

[0012]

[Operation] Each step of mounting a plurality of work assembly bases on a rotary base at equal intervals, stacking the work bases on the assembly base, aligning the stacked work bases, applying an adhesive and curing it, and carrying out an integrated iron core The means for simultaneously performing
Since the stacked work pieces are positioned on the assembly table, the robot hand, cylinder device, adhesive application device,
A means such as a light irradiation device can be applied without fear of deforming the work, and the work made of an extremely thin plate can be assembled on the iron core without damage.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail with reference to the accompanying drawings with reference to the accompanying drawings. The iron core automatic assembly apparatus 1 of the present embodiment shown in FIGS. 1 to 5 has a workbench 2 on which a rotary table 3 and a robot hand 4, a high-frequency parts feeder 5, and a shooter 6 are attached as a device for supplying a work. .
Reference numeral 1 ₀ shown in FIG. 1-3 is a control device.

The high-frequency parts feeder 5 is a device that, when an I-shaped work 7 (FIG. 4) is put into the hopper 5a, the work 7 is sent to the exit 5b along the peripheral wall by vibration and sent to the shooter 6 one by one. It is possible to use the method used by Shooter 6
Is a sensor 8 for detecting a work 7 that slides down, which is composed of an inclined passage provided with a groove having a width through which one work 7 in a portrait orientation passes.
The number of workpieces 7 passing through is counted, and when the number of workpieces reaches a certain number, the workpieces 7 are held and the supply is stopped. The parts feeder 5 may be stopped to stop the supply of the work 7. The detecting means of the sensor 8 is not particularly limited, but it is preferable to use a non-contact detecting means such as an optical means in order not to damage the work 7.

As shown in FIG. 4, a plurality of (8 in the drawing) the assembly bases 9 are arranged radially at equal intervals, and a base 9a on which the work 7 is mounted and a positioning piece 9 are respectively placed.
b, 9c, and the positioning pieces 9b, 9c are formed so as to be in contact with two sides of the works 7, respectively, and hinges so that the stacking surface of the stacked works 7 can be inclined 25 ° with respect to the plane with respect to the plane. It was attached to the turntable 3 via (not shown). Then, the work 7 is carried in on the assembly table 9 at the carry-in position A shown in the figure, and the work 7 assembled on the iron core is carried out at the carry-out position B. Therefore, in the case of the present embodiment, the position C is not involved in the assembly work and is provided because of the layout of the device.

In order to transfer the work 7 from the shooter 6 of this embodiment to the assembly table 9 stopped at the loading position A, the shooter 6
The workpieces 7 are slid onto the pedestal 9a and stacked. Instead of the above, the robot hand 4 holds the workpieces 7 one by one by means such as suction, and the pedestal 9a is held.
You may make it pile on top. When the stacking of the works 7 is completed, as shown in FIG.
Each piston shaft 10 of the x and Y axis cylinder device 10y
With the pad 10b attached to the tip of a, the stacked works 7 are pressed against the positioning pieces 9b and 9c to make the stacking surfaces flat, and the Z-axis cylinder device 10z presses the stacked works 7 from above.

The X-axis cylinder device 10x and the Y-axis cylinder device 10y are attached to the outside of the rotary table 3, but the Z-axis cylinder device 10z is attached to each assembly table 9 one by one. I tried to rotate with. Tilting device
Reference numeral 11 is a cylinder device, and is composed of a cylinder device having a pad 11a attached to the front thereof, and the assembly table 9 is pushed from the front by the pad 11a, and the work pieces 7 stacked by the cylinder device 10z are stacked.
Is inclined so that it will fall backward, and the adhesive-coated surface will face upward.

When the rotary table 3 is stopped, the adhesive coating device 12 advances to the stacking surface of the work 7 and moves vertically and forward and backward while pushing out the ultraviolet curable adhesive from the nozzle 12a to follow the inclined coating surface. The work 7 is moved and coated on the laminated surface of the stacked works 7, and when the work is completed, the work 7 is retracted. The adhesive penetrates between layers to an appropriate depth due to the capillary phenomenon.

In the case of this embodiment, the ultraviolet irradiation device 13 is attached to the assembly table 9 at three stop positions. However, this number is determined by conditions such as the amount of the adhesive used, the stop time of the assembly table 9, and the depth of the adhesive entering the stack of the works 7. Reference numeral 13a shown in FIGS. 2 and 3 is a cover for preventing ultraviolet light scattering. When the adhesive is fully cured,
The assembly table 9 moves to a position where the tilt return device 14 composed of a cylinder device is arranged, and is pushed up from here to stand upright.
The tilting device 11 and the tilt restoring device 14 shown in FIG. 4 push the assembly table 9 to tilt and return it, but the present invention is not limited to this, and the assembly table 9 and the cylinder device 10 are not limited thereto.
A supporting device (not shown) for integrally supporting z may be pushed, and a tilting / restoring device using other rotating means may be used.

Next, when the unloading position B is reached, the unloading cylinder device 15 moves the pedestal 9 onto the conveyor 16,
It is transported to the next process. As described above, the iron core automatic assembling apparatus 1 according to the present embodiment loads the work 7 into the high frequency parts feeder 5.
It is possible to assemble the iron core without putting any manpower from putting it in the container to carrying it out. Therefore, the iron core used for a very small electronic device can be efficiently assembled without damaging the work 7. Although the present embodiment has been described with respect to the case of using the I-shaped work 7 for a transformer, the present invention can be similarly applied to the E-shaped work and other shapes.

By the way, for example, the size of length × width is 10 mm ×
In the case of an apparatus for assembling an iron core using a 0.2 mm thin I-shaped iron core plate, the workbench 2 is set to have a width of 720 mm and a depth of 40.
With a scale of 0 mm, a height of 600 mm, and a height to the operation panel of about 900 mm, it is possible to perform the work of three skilled persons when conventionally assembled by hand.

[0022]

As described above, in the iron core automatic assembly apparatus of the present invention, a plurality of assembly tables are attached to the rotary table, the works are stacked on the assembly table, the stacked works are aligned, the adhesive is applied, and they are integrated. Since each process of carrying out the iron core is performed at the same time, it does not cause damage such as bending of the iron core molding thin plate such as permalloy with careless handling, so the iron core can be assembled without manpower. This makes it possible to eliminate the occurrence of defective products and ensure high productivity.

[Brief description of drawings]

FIG. 1 is a plan view of an iron core automatic assembly apparatus according to an embodiment of the present invention.

FIG. 2 is a front view of FIG.

FIG. 3 is a side view of FIG.

FIG. 4 is an exploded perspective view illustrating the configuration of the iron core automatic assembly device of FIG. 1.

5 is an enlarged explanatory view of a carry-in position A in FIG. 1. FIG.

[Explanation of symbols]

1 Automatic iron core assembling device 3 Rotating table 4 Robot hand 5 Shooter 6 High frequency parts feeder 7 Work 8 Sensor 9 Assembly table 9a Pedestal 9b Positioning piece 9c Positioning piece 10b Pat 10x X-axis cylinder device 10y Y-axis cylinder device 10z Z-axis cylinder device 12 Adhesive coating device 13 Ultraviolet irradiation device 15 Carry-out cylinder device 14 Conveyor A Carry-in position B Carry-out position

Claims (2)

[Claims] 1. A plurality of assembly bases are attached to a rotary base at equal intervals, an assembly device is arranged at a position where the assembly bases stop, in the order of steps, and a plurality of iron core plate-shaped works stacked on the assembly base are bonded with an adhesive. In this device, the assembling table is formed by a pedestal on which a work is placed and a positioning piece that is in contact with at least two sides of the work.
In the order of steps, a work carry-in device that stacks the positioning pieces so that predetermined sides of the work face each other, a device that pushes a pad toward the positioning pieces to align the stacked surfaces of the stacked works, and an adhesive is applied to the stacked surfaces of the works. An iron core automatic assembling device formed by the device and a device for unloading a bonded work from an assembling table. 2. The automatic iron core assembling apparatus according to claim 1, further comprising a step of curing the applied adhesive between the step of applying the adhesive to the laminated surface of the work and the step of taking out the adhered work.