KR101304897B1 - Clinching device and method for boards - Google Patents

Abstract

PURPOSE: An apparatus and method for clinching a plate are provided to clinch heterogeneous materials or homogeneous materials through a local interface bonding process, thereby improving a bonding force between the materials. CONSTITUTION: An apparatus for clinching a plate includes an anvil (100), a lower plate (200), an upper plate (300), and a chamber (400). The anvil includes a cartridge heater inside. The lower plate is mounted on the anvil. The upper plate is laminated on the lower plate. The chamber is separated from the anvil at a certain distance, and is installed at the upper side of the anvil. The chamber includes an induction coil, a punch, a cooling pipe, a clamp, and an insulating member.

Description

Clinching device and method for boards

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sheet clinching apparatus and method, and more particularly to a sheet clinching apparatus and method capable of clinching dissimilar materials or homogeneous materials by electromagnetic pressure.

In general, when complicated shapes or shapes are processed or expressed in detail, or when the size of the whole part is difficult to be molded at once, it is separated into different materials and then clinched to complete one part.

The electromagnetic molding processing method has been proposed as a clinching method of such heterogeneous materials.

1 is a view for explaining the principle of the electromagnetic molding processing method.

Looking at the basic principle of the electromagnetic molding process, as shown in Figure 1, by placing a field shaper (Field Shaper) 20 at the bonding point of the bonding object 10, the coil (outside the field shaper 20) 30).

Subsequently, when the high voltage capacitor is charged to discharge the coil 30 in a short time, a strong induction magnetic field is generated at the tip of the field shaper 20 by the current flowing through the coil 30. 10 can be molded at high speed.

2 is a process chart of a conventional method for joining dissimilar materials.

For example, Patent Application No. 10-2007-0133699 introduces a heterogeneous material bonding method, the invention is shown in Figure 2, the connection node (1) to be electromagnetically molded in order to bond the heterogeneous material to each other Is interposed between the joints, and the connecting nodes can be bonded to each other by the electromagnetic molding with the dissimilar materials in the state of attaching the corrosion plate 7 having a low potential sequence.

However, according to the conventional general electromagnetic molding method, since the clinching speed is applied by the application of the hydraulic pressure, the clinching speed is low, and the production efficiency is lowered. There is a problem that the work site is contaminated due to the leakage of oil according to the use of, and the clinching cost because the separate parts such as rivets are inserted into different materials or provided with a separate connection node between the different materials as described above There is an increasing problem.

The present invention has been invented to solve the problems as described above, to provide a plate clinching apparatus and method capable of clinching dissimilar materials or homogeneous materials by ultra-fast local interface bonding using electromagnetic pressure. There is this.

Plate clinching device according to the present invention to achieve the object as described above is anvil; A lower plate seated on the anvil; An upper plate laminated on the lower plate; And a chamber spaced apart from the anvil at a predetermined interval and installed above the anvil, wherein the chamber comprises: an induction coil for generating electromagnetic pressure by power supply; And a punch installed at the lower portion of the induction coil and vertically descending by receiving the force by the electromagnetic pressure to locally clinch the upper plate and the lower plate.

In addition, the punch is characterized in that the pressing jaw is formed in the lower portion to locally concentrate the force by the electromagnetic pressure.

In addition, the upper plate and the lower plate is characterized in that the different materials.

In addition, the upper plate and the lower plate is characterized in that the same type of material.

The chamber may further include a cooling tube installed outside the induction coil and cooling the heated induction coil by a refrigerant or a cooling gas flowing therein.

In addition, the chamber is wrapped around the punch is characterized in that it further comprises a clamp for guiding the vertical movement of the punch.

In addition, the present invention is characterized in that it further comprises a heat insulating member surrounding the punch and installed between the clamp and the upper plate to prevent heat loss of the punch.

In addition, the anvil is characterized in that the upper surface is formed flat.

In addition, the anvil is characterized in that the pressing jaw of the punch is inserted into the upper surface is formed with a pressing groove for clinching the upper plate and the lower plate.

In addition, the anvil is characterized in that it comprises a cartridge heater therein.

In addition, the sheet clinching device according to the present invention anvil; A lower plate seated on the anvil; An adhesive member laminated on the lower plate; An upper plate laminated on the adhesive member; And a chamber spaced apart from the anvil at a predetermined interval and installed above the anvil, wherein the chamber comprises: an induction coil for generating electromagnetic pressure by power supply; A cooling tube installed outside the induction coil and cooling the induction coil heated by a refrigerant or a cooling gas flowing through the induction coil; A punch installed in the lower portion of the induction coil to vertically receive the force by the electromagnetic pressure to locally clean the upper plate, the adhesive member, and the lower plate; And a clamp installed to surround the punch to guide vertical movement of the punch; a heat insulating member surrounding the punch and installed between the clamp and the upper plate to prevent heat loss of the punch. It is characterized by.

In addition, the plate clinching method according to the present invention comprises a plate laminating step of laminating the upper plate and the lower plate on the anvil; A chamber installation step of installing the chamber at a predetermined interval apart from the anvil; An electromagnetic pressure generating step of generating electromagnetic pressure by supplying power to the induction coil included in the chamber; A punch descending step in which the punch included in the chamber receives the force by the electromagnetic pressure and descends vertically; And a plate clinching step in which the punch pressurizes the upper plate to locally clinch the upper plate and the lower plate.

In addition, after the plate stacking step, the adhesive layer interposing step of interposing the adhesive member between the upper plate and the lower plate; characterized in that it further comprises.

As described above, according to the sheet clinching apparatus and method according to the present invention, there is an effect capable of clinching heterogeneous materials or homogeneous materials at an extremely high speed using electromagnetic pressure.

In addition, according to the present invention, there is an effect that the bonding force between the materials can be improved by clinching the different materials or the same materials by local interface bonding.

In addition, according to the present invention, it is possible to press the clinching material or the homogeneous material directly by the punch moving by the electromagnetic pressure, without inserting a separate consumable coupling member into the heterogeneous material or the homogeneous material, thereby reducing the clinching cost. There is an effect that can be reduced.

1 is a view for explaining the principle of the electromagnetic molding processing method.
2 is a process chart of a conventional method for joining dissimilar materials.
3 is a block diagram of a plate clinching device according to a first embodiment of the present invention.
4 is a first view showing a state in which the punch according to FIG. 3 is vertically lowered by electromagnetic pressure to clinch the plate.
5 is a second view showing a state in which the punch according to FIG. 3 is vertically lowered by electromagnetic pressure to clinch the plate.
6 is a block diagram of a plate clinching device according to a second embodiment of the present invention.
7 is a first view showing a state in which the punch according to FIG. 6 is vertically lowered by electromagnetic pressure to clinch the plate.
8 is a second view showing a state in which the punch according to FIG. 6 is vertically lowered by electromagnetic pressure to clinch the plate.
9 is a first block diagram of a plate clinching method according to the present invention.
10 is a second block diagram of a plate clinching method according to the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. First, it should be noted that the same components or parts among the drawings denote the same reference numerals whenever possible. In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted so as not to obscure the subject matter of the present invention.

3 is a block diagram of a plate clinching device according to a first embodiment of the present invention.

As shown in FIG. 3, the plate clinching apparatus according to the first embodiment of the present invention is mounted on the anvil 100, the lower plate 200 seated on the anvil 100, and the lower plate 200. The upper plate 300 to be stacked and the chamber 100 is spaced apart from the anvil 100 and a chamber 400 is installed on the top of the anvil 100.

4 is a first view showing a state in which the punch according to FIG. 3 is vertically lowered by the electromagnetic pressure to clinch the plate, and FIG. 5 is a view in which the punch according to FIG. 3 is vertically lowered by the electromagnetic pressure to clinch the plate. Figure 2 shows the appearance.

As shown in FIG. 4, the anvil 100 has a flat upper surface on which the lower plate 200 is seated so that the upper plate 300 and the lower plate 200 have an upper portion of the anvil 100. 5, the upper plate 300 and the lower plate 200 are pressurized grooves 120 formed by pressing the grooves 120 in the upper surface of the anvil 100, as shown in FIG. 5. Can be clinched together.

On the other hand, the anvil 100 may include a cartridge heater 110 therein, the cartridge heater 110 may operate by power supply to heat the anvil 100, the heated anvil 100 ) Sequentially transfers heat to the lower plate 200 and the upper plate 300 to heat the upper plate 300 and the lower plate 200 to a predetermined temperature to heat the upper plate 300 and the lower plate 200. ) Can be easily clinched.

Here, the upper plate 300 and the lower plate 200 may be made of a metal-metal-to-metal heterogeneous material or the same material of aluminum (Al) or magnesium (Mg), or may be made of a metal-non-metallic heterogeneous material.

The chamber 400 has an induction coil 410, a punch 420, a cooling tube 430, and a clamp 440, as shown in FIG. 3, to clean the upper plate 300 and the lower plate 200. ) May be included.

The induction coil 410 is an electro magnetic forming (EMF) coil, which is installed inside the chamber 400, may induce a magnetic field by supplying power.

The induction coil 410 is intermittently supplied from a power supply unit (not shown) to induce a magnetic field to generate a high pressure force according to the energization of the aggregated current to generate a high energy electromagnetic pressure vertically downward. .

The punch 420 is installed below the induction coil 410 and may be vertically lowered by receiving a force generated by the electromagnetic pressure generated from the induction coil 410, where the punch 420 is electromagnetic pressure. In order to receive the force by the most effectively it can be made of aluminum material.

The punch 420 may be formed in the lower pressure jaw 421 for locally concentrating the force due to the electromagnetic pressure, the punch 420 is the induction, as shown in (a) of FIG. After receiving the force due to the electromagnetic pressure generated from the coil 410 and vertically descending at a very high speed, as shown in (b) to (d) of Figure 4, the flat surface formed on the upper surface of the anvil 100 The pressing jaw 421 may directly press the upper plate 300 to locally clean the upper plate 300 and the lower plate 200.

On the other hand, the punch 420, as described above, when the pressing groove 120 is formed on the upper surface of the anvil 100, as shown in Figure 5 (a), from the induction coil 410 After receiving the force generated by the generated electromagnetic pressure and vertically descending at an extremely high speed, as shown in (b) of FIG. 5, the pressing jaw 421 may directly press the upper plate 300, where The pressing jaw 421 is inserted into the pressing groove 120 formed in the anvil 100, as shown in (c) and (d) of Figure 5, the upper plate 300 and the lower plate 200 ), The upper plate member 300 and the lower plate member 200 may be locally clinched in the pressing groove 120.

On the other hand, the plate clinching device according to the first embodiment of the present invention, when the punch 420 is vertically lowered to clinch the upper plate 300 and the lower plate 200, the punch 420 to the original position It may include a positioning member (not shown) for restoring, wherein the positioning member (not shown), for example, by applying a working pressure into the chamber 400 to vertically punch the punch 420 As long as it can raise or supply the vertical movement force to the punch 420 like a motor, it can be a structure which can raise the said punch 420 vertically.

The cooling pipe 430 may be installed outside the induction coil 410 to cool the heated induction coil 410.

The cooling tube 430 may be a coolant such as cooled water, oil or the like, or a cooling gas such as cooled argon (Ar) gas may flow. By rapidly cooling the induction coil 410 heated by power supply by gas, the induction coil 410 may be prevented from being damaged by heating.

The clamp 440 may be installed to surround the punch 420 to guide the vertical movement of the punch 420.

The clamp 440 may have a hollow portion in which the punch 420 is vertically moved, wherein the hollow portion guides the vertical movement of the punch 420 while blocking the horizontal movement of the punch 420. Thus, the punch 420 may be induced to press the upper plate 300 exactly vertically.

On the other hand, the clinching apparatus according to the first embodiment of the present invention may further include a heat insulating member 500 to prevent heat loss of the punch 420, as shown in FIG.

The heat insulating member 500 may be installed between the clamp 440 and the upper plate 300 to surround the punch 420, and the heat insulating member 500 may transfer heat from the induction coil 410. By preventing the heat loss of the punch 420 received and heated, the upper plate 300 and the lower plate 200 may be easily clinched in a high temperature state.

Hereinafter, the plate clinching apparatus according to the second embodiment of the present invention will be described in detail.

6 is a block diagram of a plate clinching device according to a second embodiment of the present invention.

As shown in FIG. 6, the plate clinching apparatus according to the second embodiment of the present invention is mounted on the anvil 100, the lower plate 200 seated on the anvil 100, and the lower plate 200. The adhesive member 600 to be stacked, the upper plate 300 to be stacked on the adhesive member 600 and the chamber 100 is spaced apart from the anvil 100 and a predetermined interval is installed on the top of the anvil 100 do.

Here, the anvil 100, the lower plate 200, the upper plate 300 and the chamber 400 are each anvil, lower plate, upper plate and included in the plate clinching apparatus according to the first embodiment of the present invention. Since the configuration and contents of the chamber are the same, detailed description thereof is omitted.

The adhesive member 600 may be interposed between the upper plate 300 and the lower plate 200 to improve the adhesive force when clinging to the upper plate 300 and the lower plate 200.

7 is a first view showing a state in which the punch according to FIG. 6 is vertically lowered by the electromagnetic pressure to clinch the plate, and FIG. 8 is a view in which the punch according to FIG. 6 is vertically lowered by the electromagnetic pressure to clinch the plate. Figure 2 shows the appearance.

On the other hand, the punch 420 included in the chamber 400, for example, as shown in Figure 7 (a) to (d), when the upper surface of the anvil 100 is formed flat, After receiving the force by the electromagnetic pressure generated from the induction coil 410 included in the chamber 400 and vertically descending at a very high speed, the pressing jaw 421 of the punch 420 directly directs the upper plate 300. By pressing, the upper plate 300, the adhesive member 600, and the lower plate 200 may be locally clinched.

In addition, the punch 420, for example, as shown in (a) to (d) of Figure 8, when the pressing groove 120 is formed on the upper surface of the anvil 100, the induction coil ( After receiving the force due to the electromagnetic pressure generated from the 410 is vertically lowered at a very high speed, the pressing jaw 421 directly presses the upper plate 300 and is inserted into the pressing groove 120 while the upper plate ( 300, the adhesive member 600 and the lower plate 200 may be locally clinched.

On the other hand, the clinching device according to the second embodiment of the present invention is the same as the clinching device according to the first embodiment of the present invention, as shown in Figure 6, the clamp 440 included in the chamber 400 ) And the insulation member 500 installed to surround the punch 420 between the upper plate 300 and the upper plate 300 to prevent heat loss of the punch 420, and although not illustrated, the punch 420 is vertically lowered. When the upper plate 300, the adhesive member 600, and the lower plate 200 are clinched, a position shift member (not shown) may be further included to restore the punch 420 to its original position.

Hereinafter, the plate clinching method according to the present invention will be described in detail.

9 is a first block diagram of a plate clinching method according to the present invention.

The plate clinching method according to the present invention, as shown in Figure 9, the plate stacking step (S10), chamber installation step (S20), electromagnetic pressure generation step (S30), punch lowering step (S40) and plate clinching step (S50).

The plate stacking step S10 is a step of stacking the upper plate 300 and the lower plate 200 on the anvil 100, as shown in FIG.

In the sheet stacking step (S10), the lower plate 200 is seated on the anvil 100, the upper plate 300 is laminated on the lower plate 200, and then on the anvil 100 The anvil 100 may be heated by supplying power to the included cartridge heater 110.

As such, the heated anvil 100 sequentially transfers heat to the lower plate 200 and the upper plate 300 to heat the upper plate 300 and the lower plate 200 to a predetermined temperature so that the upper plate ( The clinching of the 300 and the lower plate 200 can be facilitated.

The chamber installation step (S20) is a step of installing the chamber 400 spaced apart a predetermined interval on the anvil 100.

The electromagnetic pressure generating step (S30) is a step of generating electromagnetic pressure by supplying power to the induction coil 410 included in the chamber 400.

In the electromagnetic pressure generating step (S30), by supplying power to the induction coil 410 to induce a magnetic field inside the chamber 400 can generate a high energy electromagnetic pressure vertically downward.

The punch lowering step (S40) is a step in which the punch 420 included in the chamber 400 descends vertically by receiving a force by the electromagnetic pressure.

In the punch lowering step (S40), the punch 420 installed in the lower portion of the induction coil 410 may be vertically descended at an extremely high speed by receiving the force generated by the electromagnetic pressure generated from the induction coil 410.

The plate clinching step S50 is a step in which the punch 420 presses the upper plate 300 to locally clean the upper plate 300 and the lower plate 200.

In the plate clinching step S50, the upper plate 300 and the lower plate 200 are locally clinched on the upper surface of the anvil 100 having the punch 420 flat or the anvil 100. The upper plate 300 and the lower plate 200 can be locally clinched in the pressing groove 120 formed in the).

Specifically, the punch 420 may be formed in the lower pressure jaw 421 for locally concentrating the force by the electromagnetic pressure, the pressure jaw 421 is flat, as shown in FIG. Directly pressing the upper plate 300 on the upper surface of the formed anvil 100 to locally clinch the upper plate 300 and the lower plate 200, or as shown in Figure 5, the anvil ( The upper plate 300 and the lower plate 200 are locally inserted by pressing the upper plate 300 and the lower plate 200 into the pressing groove 120 formed in the pressing groove 120. Can be clinched.

As such, the upper plate 300 and the lower plate 200 that are locally clinched in the plate clinching step S50 may be punched using a position shifting member (not shown) after the plate clinching step S40. Recovery can be made by restoring 420 to its original position.

10 is a second block diagram of a plate clinching method according to the present invention.

Meanwhile, the plate clinching method according to the present invention may further include an adhesive layer interposing step S15 after the sheet laminating step S10, as shown in FIG. 10.

The adhesive layer interposing step (S15) is a step of interposing the adhesive member 600 between the upper plate 300 and the lower plate 200, as shown in Figure 6, by the adhesive layer interposing step (S15) The adhesive member 600 interposed between the upper plate 300 and the lower plate 200 may improve the adhesion between the upper plate 300 and the lower plate 200 during clinching.

As described above with reference to the drawings illustrating a plate clinching apparatus and method according to the present invention, the present invention is not limited by the embodiments and drawings disclosed herein, but within the technical scope of the present invention Of course, various modifications may be made by those skilled in the art.

100: anvil 110: cartridge heater
120: pressing groove 200: lower plate
300: upper plate 400: chamber
410: Induction coil 420: Punch
421: pressure jaw 430: cooling tube
440: clamp 500: insulation member
600: adhesive member
S10: Lamination of sheet material
S15: Adhesive Interposition Step
S20: Chamber installation step
S30: Electromagnetic pressure generation step
S40: Punch Descent
S50: Plate clinching step

Claims (13)

Anvil including a cartridge heater therein;
A lower plate seated on the anvil;
An upper plate laminated on the lower plate; And
And a chamber spaced apart from the anvil at a predetermined interval and installed above the anvil.
The chamber may comprise:
Induction coil for generating electromagnetic pressure by the power supply;
A punch installed in the lower portion of the induction coil and vertically descending by receiving the force by the electromagnetic pressure to locally clean the upper plate and the lower plate;
A cooling tube installed outside the induction coil and cooling the heated induction coil by a refrigerant or a cooling gas flowing through the induction coil;
A clamp wrapped around the punch to guide the vertical movement of the punch; And
And a heat insulating member surrounding the punch and installed between the clamp and the upper plate to prevent heat loss of the punch.
The punch is a plate clinching device, characterized in that formed in the lower pressure jaw to locally concentrate the force by the electromagnetic pressure.
delete The method of claim 1,
The upper plate and the lower plate is a plate clinching device, characterized in that the material different from each other.
The method of claim 1,
The upper plate and the lower plate is a plate clinching device, characterized in that the same material.
delete delete delete The method of claim 1,
The anvil is a plate clinching device, characterized in that the upper surface is formed flat.
The method of claim 1,
The anvil is plate clinching device, characterized in that the pressing jaw of the punch is inserted into the upper surface is formed with a pressing groove clinching the upper plate and the lower plate.
delete The method of claim 1,
Further comprising an adhesive member interposed between the lower plate and the upper plate,
The punch is a plate clinching device, characterized in that for receiving the force by the electromagnetic pressure is vertically lowered to locally clinch the upper plate, the adhesive member and the lower plate.
delete delete

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