JPH0534817B2 - - Google Patents

Description

Detailed Description of the Invention A. Purpose of the Invention [Industrial Field of Application] The present invention provides a method for assembling transformers and chain coils constituting an electronic device, in which a core pallet and a bobbin pallet are provided with horizontal transformers and chain coils, respectively. A magnetic core and a coil bobbin are installed in advance, a core holder for assembling and fixing the transformer and the chain coil is installed on a holder pallet, and using mechanical and electrical mechanisms,
The present invention relates to a method for assembling a transformer and a chiyoke coil, in which a transformer and a chiyoke coil are assembled by combining a magnetic core, a coil bobbin with a winding wire wound around the coil bobbin, and a core holder, and a method for assembling the same.

[Prior Art] Conventionally, most of the assembling of the magnetic core (hereinafter referred to as the core) and the coil bobbin (hereinafter referred to as the bobbin) of this type of transformer and chiyoke coil has been done manually, so the assembly work is difficult. This method requires time, the cost of assembly is high, and there is also a large variation in quality due to variations in the skill level of workers during manual assembly work.

[Problems to be Solved by the Invention] In order to eliminate these drawbacks, the present invention has previously installed the magnetic core on the core pallet, the core holder on the holder pallet, and the coil bobbin on the bobbin pallet, and then connect the core and bobbin together. The present invention provides a method for assembling a transformer and a chiyoke coil, and an assembling apparatus therefor, which solve the above-mentioned problems by automatically assembling a core holder into an assembled body using a machine.

B. Structure of the Invention [Means for Solving the Problems] A method and an assembly apparatus for assembling a transformer and a chiyoke coil according to the present invention include: a magnetic core that is a component of a horizontal transformer and a chiyoke coil; a coil bobbin having a winding thereon; The core holders are arranged on their own pallets, and an assembly machine is placed between the pallet on which the magnetic cores are arranged and the pallet on which the coil bobbins with windings are arranged. A holder pallet for supplying core holders for fixing the coil bobbins is provided on the assembly machine, and the machine automatically supplies the cores and coil bobbins to an assembly groove provided in the assembly machine, and the cores and coil bobbins are supplied from pallets installed on both sides of the assembly groove. The core and coil bobbin are assembled into the assembled body at the bobbin core set position above the assembly groove of the assembly machine, and the core is pushed into the coil bobbin with a core push rod that moves back and forth along the assembly groove. At the holder set position, lower the shaft and move the core holder attached to the shaft of the holder pallet with the core holder installed vertically on the assembly groove to the holder pin on the assembly groove surface. Open the opening side, push the assembled body along the assembly groove in the direction of the holder pin and stopper with the core push rod, and push the assembled body with the core holder assembled from the holder pin onto the stopper protruding from the assembly groove surface of the assembly machine. Press and hold the nail inward at the tip M
Press the letter-shaped core holder against the stopper and attach the opening side claw of the core holder to the back of the magnetic core. When the core push rod is returned, the claw at the tip of the core holder will lock onto the back of the core, and the core holder will be assembled. Completely assemble it to the body and fix the magnetic core and coil bobbin. After the core holder is assembled into the assembled body, the upper surface of the holder pin and stopper is lowered to the assembly groove surface, and the assembled transformer and chain yoke coil are pushed out of the assembly groove by the core push rod and taken out from the take-out position as a completed product. The feeding of the core and bobbin from the pallet and the operation of the respective mechanisms during the assembly of the transformer and choke coil in the assembly machine are synchronized in time, and the combination operations are performed automatically in sequence.

That is, the present invention has the following features: 1. A divided magnetic core is assembled into a coil bobbin wound with a winding wire, and the outer periphery of the coil bobbin and magnetic core is formed into an M-shape with spring characteristics and an inwardly facing claw at the tip. In the method for assembling a transformer and a chiyoke coil with a core holder assembled, a core pallet with a core groove for storing the magnetic core of a horizontal transformer and a chiyoke coil with the abutting surfaces of the cores facing each other, and a coil bobbin with a winding wire wound thereon. A bobbin pallet with a bobbin groove for accommodating the bobbin is placed so that the core groove and bobbin groove of each pallet are aligned with the core groove and bobbin groove attached to the assembling machine with an assembling machine between them. The machine is provided with an assembly groove orthogonal to the core groove and the bobbin groove, and the magnetic core is assembled into the coil bobbin with the winding wound thereon at a bobbin core set position where the core groove orthogonal to the assembly groove and the bobbin groove cross each other. A stopper is provided at the pushing end of the core push rod that forms the body and moves back and forth along the assembly groove, the surface of which comes into contact with the assembled body has a trapezoidal concave shape and that moves up and down perpendicular to the surface of the assembly groove,
A holder pallet having a holder pin that moves up and down perpendicular to the surface of the assembly groove in which the core holder is assembled on the outer periphery of the stopper and a shaft that supplies the core holder to the holder pin is arranged above the holder pin, and the holder pallet and the holder pin are connected to each other. At the holder set position formed by the stopper, the core holder is moved from the shaft of the holder pallet that has descended from above to the outer periphery of the holder pin that has risen above the assembly groove, and the holder pin that held the core holder is positioned so that the assembled body is fixed before the assembled body reaches the holder set position. Push the opening side of the core holder to be incorporated outward, push the assembled body into the core holder held by the holder pin with a core push rod, and incorporate the core holder around the outer periphery of the assembled body.
Lower the rear holder pin from the assembly groove surface, push the assembled body with the core holder installed on the surface of the stopper using the core push rod, extend the claw on the opening side of the M-shaped core holder attached to the assembled body forward, and press the back of the core. After locking the pawl and returning the core push rod to the rear to fix the core holder to the assembled body, lower the stopper from the assembly groove surface and move the core push rod along the assembly groove to insert the core holder into the magnetic core and coil bobbin. , a method for assembling a transformer and a chiyoke coil, characterized in that the chiyoke coil is formed so as to be extruded from an assembling machine.

2. A transformer in which a divided magnetic core is assembled into a coil bobbin wound with a winding wire, and an M-shaped core holder with one end open and having a spring characteristic and an inwardly facing claw is assembled around the outer periphery of the coil bobbin and the magnetic core. In the Chi-Yoke coil assembly equipment, there is a core pallet with a core groove for storing the magnetic core of the horizontal transformer and Chi-Yoke coil with the core abutting surfaces facing each other, and a bobbin groove for storing the coil bobbin with the winding wire wound thereon. an attached bobbin pallet; an assembly machine disposed between the core pallet and the bobbin pallet;
The core groove and bobbin groove of each pallet are arranged in a straight line on the assembly machine.
An assembled body is formed by incorporating a magnetic core and a coil bobbin at a bobbin core set position at an intersection point where an assembly groove provided perpendicularly to a core groove and a bobbin groove of the assembling machine and a core groove and a bobbin groove of the assembly groove intersect perpendicularly. and a core push rod that pushes the assembled body along the assembly groove from one side of the assembly groove, and a trapezoidal surface that moves up and down perpendicular to the assembly groove surface where the core holder is assembled to the assembled body at the tip of the core push rod and comes into contact with the assembled body. The stopper is formed in a concave shape, and the two pins on the front surface of the stopper are vertically up and down to the surface of the assembly groove that holds the core holder on the pushing side of the core pushing rod, and the two pins on the front face in the pushing direction of the core pushing rod open outward. At least 4
A holder pin consisting of several pins, a holder pallet above the holder pin that supplies the core holder to the holder pin, and a holder set position is formed by the holder pallet, holder pin, and stopper, and at the bobbin core set position, the divided parts transferred along the core groove are formed. The magnetic core is assembled into the coil bobbin transferred along the bobbin groove to form an assembled body, the assembled body is pushed along the assembly groove to the holder set position by a core push rod, and the core holder supplied from the shaft of the holder pallet to the holder pin is moved to the core holder opening side. Open outward with a holder pin, push the assembled body onto the core holder, move the core holder from the holder pin to the outer periphery of the assembled body, lower the holder pin from the assembly groove surface, push the assembled body with the core holder assembled to the stopper with a core push rod, Stretch the M-shaped core holder forward on the opening side and assemble the core holder into the assembled body, lower the stopper from the assembly groove surface, push out the assembled body fixed by the core holder along the assembly groove with a core push rod, and remove the magnetic core and coil bobbin. This is an assembly device for a transformer and a chiyoke coil, characterized in that it is configured to assemble a core holder into an assembled body.

[Function] In the method for assembling a transformer and a choke coil according to the present invention, and the assembling device thereof, the core and the bobbin are set on a pallet on which a plurality of grooves are attached in advance, and the magnetic cores in the core grooves of the pallet in which the magnetic cores are arranged are The two grooves are made as a pair, and the two grooves are made in a pair corresponding to the width of the coil bobbin into which the magnetic core will be installed, so that the core abutting surfaces will face each other when the split core is assembled. Ori,
The bobbin groove of the pallet that accommodates the coil bobbin is formed so that when the coil bobbin is placed in line with the core groove, the magnetic core is placed at the core insertion opening of the coil bobbin. Pallets loaded with parts are replenished one after another, and assembled parts are continuously supplied to the assembly machine.
Similar to the pallet, the assembly machine has a core groove on one half of the assembly groove and a bobbin groove on the opposite side of the core groove. Magnetic cores and windings are supplied from the core pallet and bobbin pallet. The core groove and bobbin groove for transferring the coil bobbin are arranged in a straight line, and an assembly groove is provided in a direction perpendicular to the direction of the core groove and bobbin groove, so that the two core abutment surfaces face each other. The magnetic core is fed through a pair of core grooves arranged so that the core groove, the bobbin groove and the assembly groove intersect. At the bobbin core set position, a magnetic core is assembled into the coil bobbin to form an assembled body, and a core push rod that moves the inner surface of the assembly groove back and forth along the assembly groove is used to assemble the core and coil bobbin into the assembled body. holder set position,
and in the direction of the take-out position based on the time series according to the assembly procedure. The outer periphery of the assembled body incorporating the core and coil bobbin is fixed by a core holder, but at the installation position of the core holder, that is, the holder set position, a core holder that fixes the outer periphery of the assembled body incorporating two magnetic cores and the coil bobbin is supplied to the assembled body. To do this, there is a holder pallet mounted vertically on the assembly groove of the assembly machine, a holder pin consisting of at least four pins provided in the assembly groove for transferring and holding the core holder from the holder pallet, and an inner part at the tip that is transferred from the holder pallet to the holder pin and held there. On the opposite side of the opening side of the M-shaped core holder, which has oriented claws and has one side open, a stopper is installed, the core contacting surface being formed in a trapezoidal concave shape. Transfer the core holder to the holder pin from the shaft that has descended from the holder pallet to the center of the holder pin on the holder in which has risen above the assembly groove surface, open the opening side of the core holder with the holder pin, and hold the assembly of the core and coil bobbin on the holder pin from the opening side of the core holder. When inserted into the core holder and with the stopper at the back, push the assembly into the stopper using the core push rod, the core holder will extend forward, and when the holder pin descends and becomes below the assembly groove surface, the claws bent inward on the opening side of the core holder will release. , bites into the inner side of the back of the two-piece core incorporated into the coil bobbin. Therefore, when the two magnetic cores are fixed and the core push rod is separated from the assembled body, the core holder, which has an inwardly bent claw at the tip and an M-shaped back, will hold the two separated magnetic cores together. Grip the back side with your nails. The core holder is M-shaped, so when the assembled body is pushed by the core push rod, it extends laterally and toward the tip, and the claw portion bends inward to make it easier to lock onto the back of the core. . When assembling the core holder into the assembled body, the shaft of the holder pallet installed vertically at the holder set position on the assembly groove of the assembly machine enters the center of the holder pin, and the shaft is fed to the holder pin, but the holder pin rises from the assembly groove surface of the assembly machine. Once transferred from the holder pallet, the open side of the core holder is opened to the left and right by the holder pin, and the assembled body with the magnetic core and coil bobbin is pushed into the core holder with the back to the stopper using a core push rod to assemble the transformer. Or use a chiyoke coil.

[Examples] Examples of the present invention will be described below with reference to the drawings.

FIG. 1 is a diagram showing a horizontal transformer and a chiyoke coil assembled by the transformer and chiyoke coil assembly method and assembly apparatus of the present invention, and FIG. 1a is an external perspective view of the front surface; b
FIG. 2 is a perspective view of the rear side. The magnetic core 1 is a split core, and in this example it is an E-shaped core, and the magnetic core 1 is incorporated from both sides of the coil bobbin 3, and the core and bobbin are fixed by holding down the back surface of the core abutting surface with a core holder 7 from both outsides. It is a structure.

FIG. 7 shows the core pallet 2, which has a plurality of core grooves 18 in which the magnetic cores 1 are accommodated.
is provided, and as shown in FIG. 7b, a pair of 2
Two magnetic cores 1 to be incorporated into a transformer or a chiyoke coil are housed in the two core grooves 18 so that their mating surfaces face each other and form a pair, with their directions facing each other.

FIG. 8 shows a bobbin pallet 4. The bobbin pallet is provided with a bobbin groove 19 in which the coil bobbin 3 is housed with the pin terminal 23 facing upward.
A coil bobbin 3 with a winding wound around the bobbin is installed and supplied in advance.

FIG. 2 is a diagram for explaining the method and apparatus for assembling a transformer and a bow coil according to the present invention. FIG. The magnetic core 1 is placed in the core groove 1 from the left and right of the assembly machine 9.
8, the coil bobbin 3 is fed to the bobbin core set position 10 along the bobbin groove 19. The magnetic core is assembled into the coil bobbin at a bobbin core set position 10 to form an assembled body. The details of the operation of assembling the magnetic core into the coil bobbin at the bobbin core set position 10 are shown in FIG.

In Figure 3, the core groove 18 on the core pallet
The two magnetic cores 1 that have been transferred with their abutting surfaces facing each other are pushed out with their abutting surfaces facing each other in the assembly groove 21 of the assembling machine, as shown in FIG. 3a. Also, the coil bobbin 3 is simultaneously pushed out from the bobbin pallet between the two magnetic cores, resulting in the bobbin supply state shown in FIG. 3b. The state shown in Fig. 3b is a state in which the coil bobbin and the core are joined, but then the magnetic core and the coil bobbin are pushed along the assembly groove 21 by the core pushing rod 8 shown in Fig. 2, and the magnetic core is assembled into the coil bobbin. Third
The assembled body 22 becomes as shown in FIG.

At the holder set position 11, the core holder 7 is assembled into the transformer and the chi-yoke coil from the rear side of the assembled body 22, which is brought into contact with the core abutting surfaces of the transformer and the chi-yoke coil, so as to fix the two cores, as shown in FIG. 2b. The core holder 7 is installed in advance on a holder pallet 15, the details of which are shown in FIG.
is transferred from the holder pallet 15 shown in FIG. 5 to the holder pin 20 consisting of at least four pins that extend up and down on the surface of the assembly groove 21 of the assembly machine 9, and the core 1 of the assembled body 22 in which the core is assembled into the coil bobbin is transferred.
The core holder 7, which has been transferred to the holder pin 20, is assembled on the back side of the core holder 7 using the stopper 16 and the core push rod 8.

FIG. 4 shows in detail the holder pallet 15 provided directly above the holder pins in the assembly groove of the assembly machine at the holder set position, and FIG. 4a is a front view of the holder pallet with a large number of core holders 7 stored in the shaft 5. . FIG. 4b is a diagram showing the operation when transferring the core holder 7 from the shaft 5 to the holder pin 20. The shaft 5 of the holder pallet 15 descends toward the holder pin 20, and the lower end of the shaft enters the inside of the holder pin, and the core holder 7 is moved upward. From there, it is pushed by the holder pusher 6, transferred to the outer periphery of the holder pin 20, and held there.

5 and 6 are diagrams for explaining the operation for assembling the core holder 7 into the assembled body 22 in which the core and coil bobbin are assembled at the holder set position 11 shown in FIG. 2a. The attached holder pallet 15 is lowered from above, the holder pins 20 protrude onto the surface of the assembling machine 21 of the assembling machine 9, the core holder 7 is transferred from the shaft 5 of the holder pallet 15 to the holder pin 20, and then the holder pallet 15 is moved upward again. Next, the assembled body 22 is pushed into the holder pin 20 holding the core holder along the assembly groove 21 by the core push rod 8, but at this time, the holder pin 20a pushes the open side of the core holder 7a outward to the left and right as shown in FIG. , the core holder 7 has the shape of the core holder 7b shown in FIG. At this time, the stopper 16 that moves up and down on the surface of the assembly groove 21 comes out above the surface of the assembly groove, and the core push rod 8 further pushes the assembled body 22 while pushing the assembled body into the core holder 7 held on the outer periphery of the holder pin 20. Press it against the stopper 16. At this time, the open side of the core holder 7, that is, the back of the core holder, is pushed by the stopper 16, so that the tip of the core holder 7 extends in the distal direction.
On the opposite side of the surface they collided with, the claws at their tips move inward and bite into the built-in body, so when the core push rod 8 is returned, the core holder 7 is completely attached to the built-in body 22. The completed transformer and chain coil are installed, and then the upper surface of the stopper 16 descends to the same level as the lower surface of the assembly groove 21 of the assembly machine 9, and the assembled body fixed with the core holder is pushed by the core pusher rod, as shown in FIG. The completed transformer and chiyoke coil are taken out from the take-out position 12 shown in FIG. Then, the core push rod 8 returns to the bobbin core setting position 10 again, and by repeating the above operations, an assembly device is constructed in which the core, coil bobbin, and core holder are automatically and successively assembled.

FIG. 2c shows a front view of the holder pallet and the assembly apparatus of the invention.

C. Effects of the Invention [Effects of the Invention] The present invention provides a core pallet and a bobbin in which a magnetic core and a coil bobbin are housed in a core groove and a bobbin groove on both sides of an assembling machine for automatically assembling horizontal transformers and chiyoke coils by machine. The core groove and bobbin groove of each pallet and the core groove and bobbin groove of the assembly machine are arranged in a straight line, and the assembly groove is provided perpendicular to the core groove and bobbin groove of the assembly machine. A magnetic core fed along a core groove and a coil bobbin with a wound wire fed along a bobbin groove are assembled at a bobbin core set position where the core groove, bobbin groove and assembly groove intersect to form an assembled body. A core push rod that moves back and forth along the assembly groove pushes the assembly of the magnetic core and coil bobbin along the assembly groove, and the core holder provided on the assembly groove is assembled into the assembly. At the holder set position, the assembly is placed vertically on the assembly groove of the assembly machine. Transfer the core holder from the holder pallet to the holder pin that moves up and down on the assembly groove surface and assemble it on the outer periphery of the assembled body. The core holder is inserted into the outer periphery of the assembled body by pushing the body to be assembled into the core holder, which is held open at one end, using a core push rod, and the surface on which the assembled body moving up and down comes into contact with the assembly groove surface provided at the end of the assembly groove is trapezoidal. The assembled body containing the core holder is pushed into the concave stopper, and the core holder is completely assembled to the assembled body to assemble the transformer and the yoke coil.The assembled body is formed by incorporating the core into the coil bobbin, and the core is pushed. Moving the assembled body on the assembly groove using a rod, transferring the core holder from the holder pallet to the holder pin, opening the opening side of the holder pin, raising and lowering the holder pin and stopper, and pushing the assembled body into the core holder assembled and held by the core push rod. Since the operation is configured to be operated and assembled in a chronological order according to the order of assembly, the present invention allows horizontal transformers and Chi-Yoke coils to be automatically assembled without much manual labor. With this method and assembly device, it has become possible to provide transformers and chiyoke coils that are inexpensive and of excellent quality.

[Brief explanation of the drawing]

FIG. 1 shows an assembled view of a horizontal transformer and a chiyoke coil, FIG. 1a is a perspective view of the front appearance, and FIG. 1b is a perspective view of the back appearance. Figure 2 shows
FIG.
2 is a plan view, FIG. 2b is a left side view, and FIG. 2c is a front view. Fig. 3 is a diagram showing the details of the bobbin core set position shown in Fig. 2, Fig. 3a is an external perspective view of two magnetic cores installed in the assembly groove, and Fig. 3b is a diagram showing the coil bobbin with the magnetic core set. Fig. 3c is an external perspective view showing the state in which the magnetic core and coil bobbin are assembled into an assembled body by being pushed by the core pushing rod in the assembly groove. Figure 4 is. Figures showing details of the holder pallet shown in Figure 2 for supplying core holders, Figure 4a is a left side view, Figure 4b is a left side view.
FIG. 3 is a perspective view showing a state in which the core holder is transferred from the shaft to the holder pin. FIG. 5 is a side view showing the movement of the core holder and holder pin at the holder set position when the assembled body is pushed by the core push rod in the assembly groove. FIG. 6 is a plan view illustrating the operation of the assembled body, core holder, holder pin, and stopper. Fig. 7 is a diagram showing magnetic cores arranged in core grooves in a core pallet, Fig. 7a is a plan view of the core pallet, and Fig. 7b shows the orientation of the combination of cores in the core grooves. External perspective view. FIG. 8 is a diagram showing a coil bobbin pallet, FIG. 8a is a plan view of the coil bobbin pallet, and FIG. 8b is an external perspective view showing the coil bobbin. 1... Magnetic core, 2... Core pallet, 3...
Coil bobbin, 4... Palette for bobbin, 5...
Shaft, 6... Holder push, 7, 7a, 7b...
... Core holder, 8 ... Core push rod, 9 ... Assembly machine, 10 ... Bobbin core set position, 11 ... Holder set position, 12 ... Take-out position, 15 ...
...Holder pallet, 16...Stopper, 18...
...Core groove, 19...Bobbin groove, 20, 20a...
Holder pin, 21... Assembly groove, 22... Built-in body, 23... Pin terminal, 71... Claw.

Claims (1)

[Scope of Claims] 1. A divided magnetic core is assembled into a coil bobbin wound with a winding wire, and the outer periphery of the coil bobbin and magnetic core is formed into an M-shape with spring characteristics and an inwardly facing claw at the tip with an open end. In the method for assembling a transformer and a chiyoke coil with a core holder assembled, a core pallet with a core groove for storing the magnetic core of a horizontal transformer and a chiyoke coil with the core abutting surfaces facing each other, and a corbob bin around which the winding wire is wound are used. A bobbin pallet with a bobbin groove for accommodating the bobbin is placed so that the core groove and bobbin groove of each pallet are aligned with the core groove and bobbin groove attached to the assembling machine with an assembling machine between them. The machine is provided with an assembly groove orthogonal to the core groove and the bobbin groove, and the magnetic core is assembled into the coil bobbin with the winding wound thereon at a bobbin core set position where the core groove orthogonal to the assembly groove and the bobbin groove cross each other. A stopper is provided at the pushing end of the core push rod that forms the body and moves back and forth along the assembly groove, the surface of which comes into contact with the assembled body has a trapezoidal concave shape and that moves up and down perpendicular to the surface of the assembly groove, A holder pallet having a holder pin that moves up and down perpendicular to the surface of the assembly groove in which the core holder is assembled on the outer periphery of the stopper and a shaft that supplies the core holder to the holder pin is arranged above the holder pin, and the holder pallet and the holder pin are connected to each other. At the holder set position formed by the stopper, the core holder is moved from the shaft of the holder pallet that has descended from above to the outer periphery of the holder pin that has risen above the assembly groove, and the holder pin that held the core holder is positioned so that the assembled body is fixed before the assembled body reaches the holder set position. Push the opening side of the core holder to be assembled outward, push the assembled body into the core holder held by the holder pin with the core push rod, incorporate the core holder around the outer periphery of the assembled body, lower the rear holder pin from the assembly groove surface, and press the core push rod. Push the assembled body incorporating the core holder against the surface of the stopper, extend the claw on the opening side of the M-shaped core holder attached to the assembled body forward, and lock the claw on the back surface of the core,
After returning the core push rod to the rear and fixing the core holder to the assembled body, lower the stopper from the assembly groove surface, and move the core push rod along the assembly groove to insert the core holder into the magnetic core and coil bobbin.
A method for assembling a transformer and a chiyoke coil, characterized by forming the chiyoke coil by extruding it from an assembling machine. 2. A transformer in which a divided magnetic core is assembled into a coil bobbin wound with a winding wire, and an M-shaped core holder with one end open and having a spring characteristic and an inwardly facing claw is assembled around the outer periphery of the coil bobbin and the magnetic core. In the Chi-Yoke coil assembly equipment, there is a core pallet with a core groove for storing the magnetic core of the horizontal transformer and Chi-Yoke coil with the core abutting surfaces facing each other, and a bobbin groove for storing the coil bobbin with the winding wire wound thereon. The installed bobbin pallet, the assembly machine placed between the core pallet and the bobbin pallet, and the core groove and bobbin groove of each pallet and the core groove and bobbin groove provided in the assembly machine are arranged in a straight line. and a magnetic core and a coil bobbin are assembled at a bobbin core set position at an intersection point where an assembly groove provided perpendicularly to the core groove and the bobbin groove of the assembling machine and the core groove and the bobbin groove of the assembly groove are orthogonal to each other. A core push rod that forms the assembled body and pushes the assembled body from one side of the assembly groove along the assembly groove, and a surface that moves up and down perpendicular to the assembly groove surface where the core holder is assembled to the assembled body at the tip of the core push rod and comes into contact with the assembled body. The stopper is formed in a trapezoidal concave shape, and the two pins on the front side of the stopper are vertically up and down to the assembly groove surface that holds the core holder on the pushing side of the core pushing rod, and the two pins on the front side in the pushing direction of the core pushing rod are placed outward. a holder pin consisting of at least four pins that operates to open the bobbin; a holder pallet above the holder pin that supplies the core holder to the holder pin; a holder set position formed by the holder pallet, the holder pin, and a stopper; The divided magnetic cores that have been transferred along the core groove are assembled into the coil bobbin that has been transferred along the bobbin groove to form an assembled body, and the assembled body is pushed along the assembly groove to the holder set position by a core push rod, and is transferred from the shaft of the holder pallet to the holder pin. Open the core holder opening side of the supplied core holder outward with the holder pin, push the assembled body onto the core holder, move the core holder from the holder pin to the outer periphery of the assembled body, lower the holder pin from the assembly groove surface, and assemble the core holder with the core push rod. Push the assembled body onto the stopper, extend the opening side of the M-shaped core holder forward, insert the core holder into the assembled body, lower the stopper from the assembly groove surface, and push the assembled body fixed by the core holder along the assembly groove with the core push rod. 1. An assembly device for a transformer and a chiyoke coil, characterized in that a core holder is assembled into an assembled body of a magnetic core and a coil bobbin by extrusion.