KR20130123648A - Zig device for welding materials - Google Patents

Abstract

Provided is a jig device for welding materials. The jig device for welding materials comprises: a gas supply means that is provided on a base for supplying an oxidation inhibiting gas to a material bonding part; a material fixation means that is provided on the base for fixing bonded materials; and a gas supply control means that is provided for controlling the supply range of gas corresponding to materials by being interlocked between the gas supply means and the material fixation means. The present invention obtains the improved effect of controlling the supply (spray) range of the oxidation inhibiting gas corresponding to the sizes of the materials when samples are molten-bonded for the inspection of the bonding properties of materials (samples) so that the durability of a structure is determined.

Description

Zig Device for Welding Materials

The present invention relates to a jig device for joining materials, and more particularly, to test the bonding properties of the material (test piece) for the determination of durability of the structure, corresponding to the size (length) of the material, in particular, when the test piece is bonded The present invention relates to a jig device for joining materials, which is capable of automatically controlling the supply (injection) range of an anti-oxidation gas.

In the case of forming a structure by joining materials by welding or the like, the durability of the structure is influenced by the physical property of the joint portion of the material, that is, the tensile strength, which is the bonding strength.

For example, such a bond strength is a representative example of determining the durability of the structure, the bond strength of the steel sheets for automobiles used as the (frame) material of the automobile and spot welded by robot operation affects the durability of the automobile.

That is, excellent characteristics of the bonding strength and the breaking strength of the spot welding portion for various kinds of materials used in automobiles are required.

By the way, the bonding strength of the raw material according to the welding of the steel sheet may be performed in advance to weld the steel sheet (material) (test piece) under the same conditions as the actual product, and to measure the tensile force of these welds.

For example, the welded specimens are forcibly pulled in opposite directions and the tensile strength is measured to test the joint properties of the welded joint.

By the way, in order to prevent the oxidation of the welded part, that is, the welding of the specimen for testing the bonding characteristics, for example, inert gas such as argon (Ar) or nitrogen (N ₂ ) (hereinafter referred to as 'gas') is used. Feed (spray) around the specimen.

For example, although not shown in a separate drawing, in the case of TIG welding of a material, a gas supply block (see reference numeral 36 in FIG. 1) in which gas supply holes are formed while the material is fixed (see 32 in FIG. 1). ) Is disposed on both sides and gas is supplied to the welded portion of the material through the gas supply holes.

However, since the gas supply holes formed in the gas supply block are formed in the longitudinal direction of the block in consideration of the maximum size (length) of the material, even if the length of the material is smaller than the total length of the gas supply holes, Since the gas is supplied (sprayed) through the gas supply holes, there is a problem that the proper gas supply is not made corresponding to the length of the material.

Therefore, since the inert gas such as expensive argon or nitrogen is supplied (sprayed) in an unnecessary range, the cost increases, and the excessive supply of such gas causes a temperature drop at the welded portion, thereby increasing the weld strength of the material (sample). It may not be formed normally.

On the other hand, although not shown in a separate drawing, in order to solve the problem caused by the excessive supply (injection) of the gas, conventionally supply the gas by closing the gas supply holes of the gas supply block using the opening and closing mechanism (ticket) The range was adjusted.

However, in the case of blocking the gas supply hole of the gas supply block by using such a manual opening and closing mechanism, first, separate opening and closing mechanisms (jig) must be manufactured. It causes the occurrence, and above all, when using the opening and closing mechanism (Jigsaw), because the operator's manual elements are required, the joining (welding) work of the material (sample) is delayed, and the precision and quality of the joining are limited. There was a problem.

Accordingly, in the art, the supply of an anti-oxidation gas in response to the size (length) of the material, that is, when the material is bonded (welding) for the inspection of the bonding properties of the material (the specimen) for the durability determination of the structure ( There has been a need for a jig device for joining materials that can automatically control the spraying range.

As a technical aspect of the present invention, there is provided a gas supply means provided on a base to supply an anti-oxidation gas to a workpiece joint;

A material fixing means provided on the base to fix the joined material; And

A gas supply control means connected to the gas supply means and the material fixing means, the gas supply control means being provided to control the supply range of the gas corresponding to the material;

It provides a jig device for joining the material configured to include.

Preferably, the gas supply control means, including an elastic body may be configured to enable the application of the material holding force of the material fixing means.

More preferably, the gas supply means is disposed opposite to the base, the material fixing means is provided to be movable at intervals on both sides between the gas supply means, the gas supply control means is the gas supply means It can be connected to both sides of the material fixing means.

And, the gas supply means, a gas supply body provided to face each other on one side of the support block provided on the base; And

A gas supply hole formed in the gas supply body toward a material;

As shown in FIG.

Preferably, the material fixing means includes a material fixing body provided to fix the bonded material while being disposed facing each other at intervals to one side of the gas supply body included in the gas supply means, the material fixing body is the gas It is connected to the supply control means.

More preferably, the gas supply control means, the connection member having an internal passage connected to one end of the material fixing body provided in the material fixing means and connected to the gas supply line; And

A gas supply pipe provided on both sides of the connection member and inserted into an inner passage of a gas supply body provided in the gas supply means and provided with a packing member at an end thereof through an elastic body;

As shown in FIG.

At this time, the gas supply pipe is provided to be movable by the elastic force of the elastic body through the socket fastened to the inlet screw groove of the inner passage of the gas supply body is configured to control the gas supply range according to the position of the packing member. .

Preferably, the gas supply line is composed of a coupling unit connected to the connecting member and a gas supply hose connected to the coupling unit, and the packing member may be supported as a stopper provided in the gas supply pipe.

More preferably, the base is seated on the drive means and a welder is disposed on the top to bond the material, or a welder provided to be movable through another drive means is disposed on the material to bond the material. .

According to the jig device for joining the workpiece according to the present invention, in the case of joining (welding) the workpiece (sample), the supply (injection) range of the anti-oxidation gas can be automatically controlled in response to the size (length) of the workpiece, The gas can be efficiently supplied only to the required range, thereby ultimately reducing gas (gas) consumption such as argon and nitrogen.

In particular, since the control of the gas supply range is automatically controlled according to the size (length) of the material (test piece), it is faster and more desirable than using a separate opening and closing tool by using an existing gas supply hole manually. As much gas supply as possible.

Therefore, various problems due to work delay or gas leakage due to the conventional manual work can be eliminated, and as a result, it is possible to improve welding operability or welding quality of the material (sample).

1 is a perspective view showing a jig device for joining materials according to the present invention
Figure 2 is a perspective view of the base and the gas supply means of the present invention device
3 is a perspective view showing a gas supply control means according to the present invention;
4 and 5 is a plan view showing the operating state of the device of the present invention
Figure 6 is a side configuration diagram showing a state of use of the device of the present invention

Hereinafter, the present invention will be described in detail with reference to the drawings.

1 to 3 show the jig device 1 for joining the material according to the present invention, and FIGS. 4 to 5 show the operation corresponding to the size (length) of the material 2 when using the jig device of the present invention. The state is shown, and FIG. 6 shows the bonding (welding) state of the actual material using the apparatus of the present invention as described above.

However, in the present embodiment below, the material 2 will be described as a specimen 2 for testing the bonding properties, and the bonding will be described with only welding. Of course, it is not necessarily limited thereto.

For example, in the jig apparatus of the present invention, in order to prevent oxidation of a welded portion during welding, a joint of a material that supplies (sprays) an inert gas such as argon or nitrogen (hereinafter, collectively referred to as 'gas') in the present embodiment. It may be provided for the purpose used.

In addition, in the present embodiment described below, although the gas may actually be injected onto the specimen welding portion, it will be described as supplying the gas to the welding portion of the specimen 2.

In addition, the jig device 1 of the present invention may actually be a device in which the specimens 2 are seated and fixed, but may be applied to a welding environment in which gas supply control is required. That is, it should be appreciated that the jig device of the present invention is not limited to a normal jig.

Hereinafter, preferred embodiments of the present invention will be described based on the above assumptions.

As shown in Figs. 1 to 4, the specimen welding jig device 1 of the present invention is a gas supply means provided to supply the anti-oxidation gas of the raw material welding portion on the base 10 as an example of the configuration thereof. 30 and the material fixing means 50 provided to fix the material adjacent to the gas supply means 30 and the gas supply means and the material fixing means, the supply range of the gas corresponding to the material. It may be provided including a gas supply control means 70 provided to control.

Accordingly, the jig device 1 for specimen welding according to the present invention basically supplies the gas to the periphery of the specimen 2 to be welded through the gas air attack means 10 to prevent oxidation of the welded portion, and at the same time, the specimen fixing means 50 ) Is fixed to the welded specimen (2) to enable welding using the welder 200 as shown in Figure 6, and then the gas supply control means 70 in detail in Figures 4 and 5 As described, the gas is supplied to the periphery of the specimen in an appropriate range corresponding to the width (length) of the specimen 2 to be welded (see D1 and D2 in FIGS. 4 and 5).

In particular, the specimen bonding jig device 1 of the present invention, when the length of the specimen (2) is variable, while the supply range of the gas also supports the specimen length while automatically fixing the specimen without manual operation using a conventional opening and closing mechanism Will be adjusted.

In addition, the gas supply control means 70 of the present invention, while controlling the supply range of the gas (D1, D2 of FIGS. 4, 5), it is possible to stably fix the specimen even if the length of the specimen is variable to perform welding To do it. That is, the application of the clamping force of the specimen.

Therefore, in the following, the main components of the test piece bonding jig device 1 of the present invention will be described.

First, as shown in Figures 1 and 2, the gas supply means 30 of the jig device 1 of the present invention, the base is provided as a plate seated on the drive means 100 as shown in FIG. It is disposed opposite to (10), may be provided assembled to one side of the support block 12 extending on both sides of the base (10).

In addition, the material fixing means 50 may also be provided to fix the welded specimen 2 while being provided to be movable at intervals on both sides between the gas supply means 30.

In addition, the gas supply control means 70 may be provided in a structure in which a pair associated with both sides of the gas supply means 30 and the material fixing means 50 are combined.

Next, the gas supply means 30 of the jig device of the present invention, as shown in FIGS. 1,2 and 4, the rectangular support block 12 having an elongated length provided on the base 10. A gas supply body 32 having an inner passage 34 formed therein and fixed to face each other at one side of the gas supply body 32, and a gas supply body communicating with the inner passage 34 to the gas supply body 32 while being directed toward a material. It may be provided including the holes 36.

Therefore, the gas flows through the gas supply holes 36 which are opened and closed as the packing member 80 of the gas supply control means 70 to be described in detail below in a suitable range (area) corresponding to the length of the specimen 2. Can be supplied.

At this time, the gas supply body 32 processes the inner passage 34 through the inside of the metal body in consideration of heat generated during welding, and the gas supply control means (described below) at the inlet of the inner passage ( The screw grooves 34a to which the socket 84 of the 70 is screwed are integrally formed.

Next, the material fixing means 50 of the jig device 1 of the present invention, as shown in Figures 1 to 3, spaced from each other to one side of the gas supply body 32 of the gas supply means 30 described above It includes a material fixing body 52 is fixed to the specimen (2) to be welded while being disposed facing each other.

Since the material fixing body 52 of the present invention is provided in the form of a block, and in practice, the specimen 2 is pressed and fixed between the front surfaces of the material fixing body 52, the material fixing body is generated during welding. It is also possible to provide a block such as a metal block or heat resistant quartz in consideration of heat.

In addition, although not shown separately in the drawing, it is also possible to coat a heat-resistant material such as ceramic on the front surface of the specimen 2 directly welded from the specimen fixing body 52, and to form a groove to slip when fixing the specimen It may be possible to prevent this from occurring, or to provide a separate specimen fixing groove.

Next, as shown in Figures 3 to 4, the gas supply control means 70 of the jig device 1 of the present invention, one end of the specimen fixing body 52 of the specimen fixing means 50 is connected rod It may include a connecting member 76 having an inner passage 74 connected to the 54 and the gas supply line 72 is connected.

And, the gas supply control means 70 of the present invention is provided on both sides of the connection member 76 (for example, while being connected in a structure that communicates with the inner passage 74 of the connection member in a screw manner) ), A gas supply pipe 82 is inserted into the inner passage 34 of the gas supply body 32 of the gas supply means 30, the elastic body 78 is fastened, and the packing member 80 is provided at an end thereof. Can be configured.

At this time, the gas supply pipe 82 is supported through the socket 84 screwed to the inlet screw groove 34a of the inner passage 34 of the gas supply body 32 while the elastic body 78, that is, the spring It is provided to be movable by the elastic force of the.

Therefore, as shown in FIGS. 4 and 5, the gas supply range through the gas supply holes 36 communicated with the inner passage 34 of the gas supply body 32 according to the position of the packing member 80. Is controlled according to the length of the specimen (2).

For example, in FIG. 4 and FIG. 5, the operation state according to the width | variety D1, D2 of the test piece 2 is shown through the jig apparatus 1 of this invention.

That is, when welding the specimen (2) having a width (length) of D1, D2 in Figs. 4 and 5, respectively, the specimen is fixed between the specimen fixing body 52, the larger the specimen length of the specimen fixed body 52 ), The test piece fixing body 52 moves backwards.

Therefore, when the specimen fixing body 52 is reversed, the connecting member 76 connected by the connecting rod 54 is also integrally reversed. At this time, the gas supply pipe 82 is retracted through the socket 84, and the packing member 80 is ) And the spring of the elastic body 78 disposed between the socket 84 is compressed.

As a result, the spring applies the elastic force to return as much as it is compressed to the packing member 80, and by the stopper 86 mounted on the gas supply pipe 82 to support the patting member 80, the spring elastic force is consequently the gas supply pipe. A spring elastic force is applied to the test piece fixing body 52 which is applied to the test piece 82 and is connected to the connection member 76 to which the gas supply pipe is connected, so that the weld test piece 2 can be firmly fixed between the test piece fixing bodies.

On the other hand, as shown in Figures 4 and 5, when the width of the specimen 2 becomes smaller D2-> D1, the specimen fixing body 52 is automatically narrowed the gap therebetween, the spring return force ( Elastic force) and the gas supply pipe 82 is advanced through the inner passage 34 of the specimen fixing body 52 through the socket.

As a result, in the case of the jig device 1 of the present invention, when the length of the specimen 2 is changed, the connection member 76 and the gas supply pipe 82 are left by the movement of the specimen fixing body 52 quickly without the manual operation of the operator. Or to the right, the position in the body inner passage 34 of the packing member 80 (ie, the spacing between the opposing packing members) during the movement of the gas supply pipe 82 is adjusted, and consequently the gas supply body. The supply range of the gas supplied through the gas supply holes 36 formed in the 32 can be controlled.

Of course, on the contrary, when the length of the specimen increases from D2-> D1 as shown in FIG. 5 to FIG. 4, the gas supply pipes 82 move to the end sides of the inner passages 34, respectively, so that the gap between the packing members 80 is widened. Through more gas supply holes 36, gas can be supplied and the gas supply range can be expanded.

Meanwhile, referring to FIG. 4 and FIG. 5, the gas supply line 72 of the gas supply control means 70 is connected to the connection member 76 when looking at the gas supply system in the jig device 1 of the present invention. And a gas supply hose 72b connected to the coupling unit 72a and a coupling unit 72a for enabling gas supply if necessary.

Therefore, when the initial device is operated, the operator engages the coupling unit 72a so that a gas such as argon or nitrogen having a predetermined pressure is supplied to the inner passage 74-> gas of the supply hose 72b-> the connecting member 76. The gas is supplied to the inner passage 34 of the gas supply body 32 through the supply pipe 82, and through the gas supply holes 36 opened according to the position of the packing member, the gas is supplied in an appropriate range corresponding to the length of the specimen. Supply is made.

On the other hand, as shown in Figure 4 and 5, the minimum length of the specimen should be longer than the minimum spacing between the specimen holding body 52 of the specimen fixing means 50, which is a spring elastic force is applied to firmly press the specimen Because it should be able to fix it.

As a result, the jig device 1 of the present invention basically serves as a jig in which the test piece is seated and fixed when welding the test piece 2 to test the bonding characteristics and the like, and in an appropriate range corresponding to the length of the test piece to be welded. It is possible to supply (inject) gas to the specimen from both sides, and above all, the apparatus of the present invention allows the gas supply range to be adjusted correspondingly as soon as the specimen length is varied.

And, by disassembling the socket 84 fastened to the screw groove 34a of the inner passage inlet side of the gas supply body 32 in the present invention, it is possible to easily disassemble the gas supply pipe 82 of the gas supply control means, It is also to facilitate the replacement of the worn packing member (80).

Next, as shown in FIG. 1, when the jig device 1 for specimen bonding according to the present invention is provided as a set device, an appropriate gas supply is possible while maintaining a stable welding in cooperation with the welding machine 200. .

For example, FIG. 6 shows an actual use state of the jig device 1 for specimen bonding according to the present invention described so far.

That is, as shown in Figure 6, the jig device 1 of the present invention is mounted on the drive means 100 and moved to the left and right while welding the specimen, for example by using a welder 200 is fixedly arranged on the top Welding, spot application or laser welding can be implemented.

For example, as shown in Figure 6, the movable block 108 is assembled to the lower portion of the base 10 of the jig device 1 of the present invention, the rail 102 of the drive means 100 to both sides of the base It is provided to move the movement guide 106 is seated in, the screw bar 110 is driven through the moving block 108 is driven by a motor 112 and fastened between the bearing block 114 of one side is fastened.

Accordingly, the base 10 of the jig device of the present invention is moved integrally with the moving block 108 according to the rotational direction or the rotational speed of the motor 112, and thus, the specimen 10 may be moved through the fixed welder 200. The welding of 2) is performed, and at this time, as shown in FIGS. 4 and 5, gas is supplied while surrounding the periphery of both sides of the specimen to effectively block oxidation of the weld.

In this case, as shown in FIG. 6, the guide groove 104a may be provided at the upper portion of the rail 102 on which the guide 106 provided on both sides of the base is seated.

Or, as shown in Figure 6, without moving the present invention jig device 1, it is also possible to implement welding while moving the welder 200 in accordance with the welding site of the specimen via the other drive means 300. Do.

For example, a ball screw 304 driven as a motor 306, shown in dotted lines around the welder in FIG. 6, is fastened to the upper moving block 308 of the welder 200, and the welder upper moving block 308. ) Is seated on the rail 302, welding the welder 200 integrally with the moving block in accordance with the motor drive to weld the specimen (2), even in this case the gas is supplied in the optimum range in accordance with the length of the specimen Will be.

Accordingly, in the case of the test piece welding jig device 1 of the present invention described above, the basic function of the jig for stably fixing even if the length of the test piece 2 is varied first, in particular, the length of the test piece Is controlled, the gas supply range is controlled to solve other problems of overcooling due to gas consumption or excessive gas supply.

1 .... Jig device for joining materials 10 .... Base
30 .... Gas supply means 32 .... Gas supply body
36 .... Gas supply hole 50 .... Material fixing means
52 .... Material fixed body 70 .... Gas supply control means
72 .. Gas supply line 76 .... Connecting member
78 .... elastomer 80 .... packing member
82 .... gas supply 84 .... socket
84 .... Stopper 100,300 .... Driving means
200 ... welder

Claims (9)

Gas supply means (30) provided on the base (10) to supply gas to the workpiece joint;
A material fixing means provided on the base to fix the joined material; And
A gas supply control means 70 which is provided to control the supply range of the gas in correspondence with the material while being connected between the gas supply means and the material fixing means;
Jig device for joining the material configured to include.
The method of claim 1,
The gas supply control means (70) is a jig device for joining the material, characterized in that configured to enable the application of the material holding force of the material fixing means including an elastic body.
The method of claim 1,
The gas supply means 30 is disposed opposite to the base 10, the material fixing means 50 is provided to be movable at intervals on both sides between the gas supply means 30, the gas supply Control means (70) is a jig device for joining material, characterized in that associated with both sides of the gas supply means (30) and the material fixing means (50), respectively.
4. The method according to any one of claims 1 to 3,
The gas supply means 30, the gas supply body 32 provided to face each other on one side of the support block 12 provided on the base 10; And
A gas supply hole 36 formed in the gas supply body 32 toward the material;
Jig device for joining the material, characterized in that configured to include.
4. The method according to any one of claims 1 to 3,
The material fixing means 50 includes a material fixing body 52 provided to fix the bonding material while being disposed to face each other at intervals to one side of the gas supply body 32 included in the gas supply means 30. , The material fixing body is a jig device for joining the material, characterized in that connected to the gas supply control means (70).
4. The method according to any one of claims 1 to 3,
The gas supply control means 70 is connected to one end of the material fixing body 52 provided in the material fixing means 50 and has a connection member having an inner passage 74 to which the gas supply line 72 is connected ( 76); And
It is provided on both sides of the connecting member 76 is inserted into the inner passage 34 formed in the gas supply body 32 provided in the gas supply means 30 and the packing member 80 at the end via the elastic body 78. Gas supply pipe 82 is provided;
Jig device for joining the material, characterized in that configured to include.
The method according to claim 6,
The gas supply pipe 82 is provided to be movable by the elastic force of the elastic body through the socket 84 fastened to the inlet screw groove 34a of the inner passage 34 formed in the gas supply body 32 to the packing member A jig device for joining materials, characterized in that the gas supply range is configured to be controlled according to the position of (80).
The method according to claim 6,
The gas supply line 72 is composed of a coupling unit 72a connected to the connection member 76 and a gas supply hose 72b connected to the coupling unit 72a.
The packing member (80) is a jig device for joining material, characterized in that supported as a stopper (86) assembled to the gas supply pipe (82).
The method of claim 1,
The base 10 is seated on the drive means 100 and the welder 200 is disposed on the upper part to bond the material, or the welder 200 provided to be movable through another drive means 300 on the upper side. Jig device for material joining, characterized in that is arranged to perform the material bonding.

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