KR102592027B1 - Welding apparatus with supporting part - Google Patents

Abstract

The present invention relates to a welding device that can perform stable welding by supporting the torch while performing welding by generating arc heat through a torch. It is equipped with a non-consumable tungsten electrode and generates arc heat through current supply to heat the base material. A torch that supplies inert gas to the welding area while welding; a welding controller connected to the torch to supply current to the tungsten electrode; A torch holder detachably coupled to the torch; And a support part connected to the torch holder and supporting the base material or the ground while supporting the torch holder with an adjustable angle.

Description

WELDING APPARATUS WITH SUPPORTING PART}

The present invention relates to a welding device provided with a support part, and more specifically, to a welding device that can perform stable welding by supporting the torch while performing welding by generating arc heat through a torch.

In general, TIG (Tungsten Inert Gas) welding, also called gas tungsten arc welding (GTAW, Gas Tungsten Welding), uses non-consumable electrodes and uses high frequency energy between the base material and the electrode while maintaining a certain distance between them. , high voltage is applied to generate an arc, and the arc heat generated here is used to melt and weld the base metal and the filler metal.

More specifically, the Tig welding method uses tungsten, which can withstand a high temperature of about 3400℃ for a long time, as an electrode, and flows an inert gas such as argon (Ar) and helium (He) around this electrode that does not react with other surrounding materials. This is a welding method that creates an arc between the electrode and the base metal as it goes, and uses the arc heat to melt and join the filler metal and the base metal.

The TIG welding method described above is performed in an inert atmosphere, so flux is not required for welding. The precise control of the arc using a high-frequency inverter method results in almost no spatter, making it a high-quality product that can be used as welded. Because it is possible to secure welding metal, it has recently been used as a core welding method in nuclear power plants, structures for petrochemical plants, and thin plate structures that require the soundness of welds and precision welding as a top priority.

However, there are disadvantages in that the gas used is relatively expensive, easily affected by wind, and the welding speed is slow. However, with the recent development of a new TIG welding method that overcomes the above disadvantages through technological improvements, the use of TIG welding has changed from the conventional method. is increasing significantly.

Meanwhile, these TIG welding methods can be broadly divided into semi-automatic welding, automatic welding, and manual welding.

Looking at this specifically, the filler metal generally used in welding is made of a coil-shaped wire, so it is commonly called welding wire.

In welding work, the above welding wire must be approached to the base material without interruption to maintain a constant arc. This is achieved automatically using a wire feeder, which is called semi-automatic welding, and involves sequentially moving the arc along the weld line. If it is accompanied by an operation to automatically move it, it is called automatic welding.

Meanwhile, unlike the semi-automatic and automatic welding mentioned above, manual welding refers to a method in which an operator holds a welding torch in one hand and a welding wire in the other hand to weld the welding area.

This manual welding is performed when the part of the base material that is not easy to weld by automatic welding or the part welded by automatic welding is insufficiently welded. The worker momentarily touches the welding wire to the base material and drops it again, creating an arc. Since work must be performed in a way that generates , skills to precisely control the welding torch are required.

However, manual welding has the problem of contaminating the weld zone if the worker does not precisely control the welding torch, and greatly increases the fatigue of the worker, which poses a risk of burns and safety accidents.

Accordingly, new technology is required to overcome the problems of the prior art as described above.

Republic of Korea Patent Registration No. 10-1625840

The present invention is intended to solve the problems of the prior art as described above, and provides a welding device equipped with a support unit that can perform stable welding by adjusting the angle of the torch performing welding while supporting it on the base material or the ground. The purpose is to do this.

Specifically, the present invention provides a support unit that allows precise and stable control of the torch by supporting the ground or base material with a horizontal bar constituting the support unit and a vertical bar connected to the torch holder via the first joint and the second joint. The purpose is to provide a welding device.

In addition, the purpose of the present invention is to provide a welding device that allows free angle adjustment of a torch holder and is provided with a support portion that can fix a member connected to the torch holder in an angle-adjusted state.

Additionally, the purpose of the present invention is to provide a welding device provided with a support portion that can move the vertical bar as needed.

In addition, the present invention provides a welding device provided with a support part that provides support force with the support part by supporting the torch holder in a state suspended from the body, or that can support the torch holder even when it is impossible to support the torch holder by the support part. There is a purpose.

The technical problems that can be achieved from the disclosed embodiments are not limited to the purposes mentioned above, and other technical problems not mentioned can be solved by anyone skilled in the art to which the embodiments disclosed below belong. can be clearly understood.

As a technical means for achieving the above-described technical problem, according to an embodiment of the welding device provided with a support portion, a non-consumable tungsten electrode is provided to generate arc heat through current supply to weld the base material and spray an inert gas at the welding area. Torch supply; a welding controller connected to the torch to supply current to the tungsten electrode; A torch holder detachably coupled to the torch; And a support part connected to the torch holder and supporting the base material or the ground while supporting the torch holder with an adjustable angle.

Additionally, the support portion includes a horizontal bar connected to the torch holder and extending in the horizontal direction; a vertical bar connected to the horizontal bar and providing support while supporting the base material or the ground; a first joint connecting the horizontal bar and the torch holder and allowing angle adjustment of the torch holder; And it is possible to allow angle adjustment of the horizontal bar while connecting the vertical bar and the horizontal bar.

In addition, the first joint includes a universal joint that allows angle adjustment in the up-down and left-right directions of the torch holder, and the second joint adjusts the angle in at least one of the up-down and left-right directions of the horizontal bar. It allows adjustment, but may include a fixing bolt for fixing the horizontal bar in an angle-adjusted state.

Additionally, the horizontal bar and the vertical bar may be composed of telescopic tubes that slide in multiple stages and expand and contract in length.

In addition, the support part may further include a caster installed on the vertical bar to movably support the vertical bar and allow movement of the torch.

In addition, the welding device further includes a wearable support part that is connected to the support part and worn on the user's body to support the torch holder while hanging on the user's body, wherein the wearable support part is connected to the support part and moves in a vertical direction. an additional vertical bar extending to; An additional horizontal bar connected to the additional vertical bar and extending in the horizontal direction; a third joint connecting the additional vertical bar and the additional horizontal bar and allowing angle adjustment of the additional vertical bar; And it may include a wearable welding suit that is worn on the user's body in a state fixed to the additional horizontal bar and is made of at least a portion of a rigid material to support the support portion.

According to one of the means for solving the above-described problem, there is a welding device provided with a support part that can perform precise and stable welding by adjusting the angle of the torch that performs welding while being supported on the base material or the ground through the structure of the support part. can be provided.

Specifically, in the present invention, the horizontal bar constituting the support portion and the vertical bar connected to the torch holder via the first joint and the second joint support the ground or base material, so that the torch can be controlled precisely and stably.

In addition, in the present invention, the first joint is composed of a universal joint, so that the angle of the torch holder can be freely adjusted, and the second joint is fixed by a fixing bolt, so that the horizontal bar is fixed in an angle-adjusted state to angle the torch at a predetermined position. It can be fixed adjustable.

In addition, since the present invention consists of a telescopic tube with adjustable length of the vertical bar and horizontal bar, the position of the torch can be accurately fixed according to the welding position.

In addition, in the present invention, a caster installed on a vertical bar movably supports the vertical bar, so the torch and the entire support part can be easily moved.

In addition, the present invention allows the torch holder to be supported while hanging on the body through a wearable support unit, thereby supplementing the support force of the support unit, or performing precise and stable welding through the wearable support unit even when it is impossible to support the torch holder by the support unit. You can.

The effects that can be obtained from the disclosed embodiments are not limited to the effects mentioned above, and other effects not mentioned are clear to those skilled in the art to which the disclosed embodiments belong from the description below. It will be understandable.

Figure 1 is a configuration diagram showing a welding device provided with a support portion according to an embodiment.
Figure 2 is a configuration diagram showing a modified example of a welding device provided with a support portion according to an embodiment.
Figure 3 is a configuration diagram showing a state in which a caster is added to a welding device equipped with a support portion according to an embodiment.
Figure 4 is a configuration diagram showing a state in which a wearable support part is added to a welding device equipped with a support part according to an embodiment.

Below, various embodiments will be described in detail with reference to the attached drawings. The embodiments described below may be modified and implemented in various different forms. In order to more clearly explain the characteristics of the embodiments, detailed descriptions of matters widely known to those skilled in the art to which the following embodiments belong have been omitted. In addition, in the drawings, parts that are not related to the description of the embodiments are omitted, and similar parts are given similar reference numerals throughout the specification.

Throughout the specification, when a configuration is said to be “connected” to another configuration, this includes not only cases where it is “directly connected,” but also cases where it is “connected with another configuration in between.” In addition, when a configuration “includes” a configuration, this means that other configurations may be further included rather than excluding other configurations, unless specifically stated to the contrary.

Hereinafter, embodiments will be described in detail with reference to the attached drawings.

Figure 1 is a configuration diagram showing a welding device provided with a support portion according to an embodiment, Figure 2 is a configuration diagram showing a modified example of a welding device provided with a support portion according to an embodiment, and Figure 3 is an embodiment. This is a configuration diagram showing a state in which a caster is added to a welding device equipped with a supporting part. In addition, Figure 4 is a configuration diagram showing a state in which a wearable support part is added to a welding device equipped with a support part according to an embodiment.

The welding device 10 provided with a support portion according to an embodiment of the present invention is a device for welding the base material 1 to be welded using the TIG (Tungsten Inert Gas) welding method, and in particular, the torch 100 is used. It is a device that can perform precise and stable welding by supporting it on the ground or base material (1).

Specifically, the welding device 10 provided with a support portion according to an embodiment includes a torch 100, a welding controller 200, a torch holder 300, and a support portion 400, as shown in FIG. It can be.

The torch 100 is a component that generates arc heat to perform welding.

Specifically, the torch 100 is equipped with a non-consumable tungsten electrode 110 and operates through current supply from a pulse generator 200, which will be described later, to generate arc heat in the base material 1 to perform welding.

Here, the torch 100 can perform welding by melting a filler metal such as a welding electrode wire (filler metal), and can also perform filler welding in which welding is performed by melting a base metal without a filler metal.

Additionally, the torch 100 can protect the welding area and electrode by supplying an inert shielding gas to the gas connection part 120 provided on one side of the body. The inert gas may be a gas such as argon or helium.

The welding controller 200 is connected to the torch 100 and supplies current to the tungsten electrode 110 to generate arc heat in the torch 100 to perform TIG welding.

This welding controller 200 can be configured to any configuration applicable to TIG welding.

For example, the welding controller 200 can obtain the voltage gradient necessary for arc generation using high voltage and allow current to easily flow through pulses with a predetermined frequency. In addition, the welding controller 200 is equipped with input switches (not shown) to set the frequency band of the pulse current through user input and to control whether or not to operate.

Here, the welding controller 200 can generate, for example, at least one of a low-frequency pulse current with a frequency band of 0.5 to 80 Hz and a high-frequency pulse current with a frequency band of 100 to 200 Hz and apply it to the torch 100. there is.

The low-frequency pulse current can be set as high as 2 to 10 times the base current. If the difference from the base current is low, welding characteristics similar to continuous welding can be obtained. If the difference is high, penetration becomes deeper, but The appearance may deteriorate, fusion failure may occur, and penetration may be deeper and weld deformation may be less than continuous teak welding with the same heat input. In addition, the high-frequency pulse current allows a stable arc to be obtained even in a low current region.

The torch holder 300 is a component that detachably couples the torch 100 to the support portion 400, which will be described later.

This torch holder 300 is manufactured in the form of a clamp or tongs so that the torch 100 can be detachably coupled to it, and can be fixed by wrapping or holding the torch 100.

Additionally, the torch holder 300 may be made of a non-conductive material such as wood, ceramic material, or synthetic resin material.

The support part 400 is connected to the torch holder 300 and supports the base material 1 or the ground while supporting the torch holder 300 with an adjustable angle, thereby supporting the torch 100 in an angle-adjustable state. am.

In other words, the support unit 400 is a component that allows welding to be performed more precisely and stably when manually controlling the torch 100 by supporting it on the ground or the base material 1. .

Specifically, the support portion 400 may be configured to include a horizontal bar 410, a vertical bar 420, a first joint 430, and a second joint 440, as shown in FIG. 1.

The horizontal bar 410 is a component that is connected to the torch holder 300 via a first joint 430, which will be described later, and extends in the horizontal direction.

This horizontal bar 410 may be formed in the form of a bar having a predetermined length, and may be made of a non-conductive material such as wood, ceramic material, or synthetic resin material.

In addition, as shown in FIG. 2, the horizontal bar 410 is formed as a multi-stage telescopic pipe and can be adjusted to a predetermined length by expanding and contracting as it slides. In this case, the horizontal bar 410 can be fixed in an adjusted length state by tightening a length adjustment bolt (not shown).

The vertical bar 420 is connected to the horizontal bar 410 via a second joint 440, which will be described later, and is a component that extends vertically and supports the base material or the ground.

This vertical bar 420 may be formed in the form of a bar having a predetermined length, and may be made of a non-conductive material such as wood, ceramic material, or synthetic resin material. Additionally, the lower part may be made of rubber material to prevent slipping.

In addition, as shown in FIG. 2, the vertical bar 420 is formed as a multi-stage telescopic pipe and can be adjusted to a predetermined length by expanding and contracting as it slides. In this case, the vertical bar 420 can be fixed in an adjusted length state by tightening a length adjustment bolt (not shown).

The first joint 430 is a component that connects the horizontal bar 410 and the torch holder 300 and allows angle adjustment of the torch holder 300.

This first joint 430 is composed of a universal joint, so that the angle of the torch holder 300 can be adjusted in the up and down and left and right directions.

In addition, the first joint 430 is manufactured so that the angle can be adjusted only when a predetermined force is applied by the user, so if the user does not adjust the angle, the angle may not be adjusted arbitrarily.

The second joint 440 is a component that connects the vertical bar 420 and the horizontal bar 410 and allows the angle of the horizontal bar 410 to be adjusted.

This second joint 440 can be manufactured to adjust the angle of the horizontal bar 410 in the up and down or left and right directions, and is provided with a fixing bolt 441 to fix the horizontal bar 410 in an adjusted angle. can be configured. That is, the angle of the second joint 440 is allowed to be adjusted by loosening the fixing bolt 441 and the second joint 440 can be fixed in an angle-adjusted state by tightening the fixing bolt 441.

Accordingly, the user can adjust the angle of the second joint 440 and the length of the horizontal bar 410 and the vertical bar 420 according to the welding position of the torch 100 and the support position of the vertical bar 420. , precise and stable welding can be performed by adjusting the angle of the torch 100 through the first joint 430 while performing welding while supporting the vertical bar 420 on the ground or base material 1.

Meanwhile, the welding device 10 with a support portion according to an embodiment may be configured to further include a caster 450 as shown in FIG. 3 .

The caster 450 enables the movement of the torch 100, and is composed of a rotatable wheel and can be installed on the vertical bar 420 and supported on the ground.

These casters 450 can be coupled to a caster frame 451 that is fixed to the vertical bar 420 and extends downward in an angle shape, and can lift the vertical bar 420 from the ground by tilting the horizontal bar 410. By spacing them apart, movement of the torch 100, torch holder 300, and support portion 400 can be allowed.

Here, the caster frame 451 is formed as a multi-stage telescopic pipe, and as it slides, its length is expanded and contracted to adjust to a predetermined length, so that the step between the caster 450 and the lower end of the vertical bar 420 can be adjusted. In this case, the caster frame 451 can be fixed in an adjusted length state by tightening a length adjustment bolt (not shown).

Meanwhile, the welding device 10 with a support unit according to one embodiment may be configured to further include a wearable support unit 500 as shown in FIG. 4 .

The wearable support unit 500 is connected to the second joint 440 constituting the support unit 400 and is worn on the user's body to attach the torch 100 to the user's body together with the torch holder 300 and the support unit 400. It is a component that supports in a suspended state.

In other words, the wearable support unit 500 supports the torch holder 300 in a state that is suspended from the body when reinforcing the support force of the vertical bar 420 or when it is impossible to support the vertical bar 420, thereby stabilizing the torch 100. It is a component that facilitates welding work.

Specifically, the wearable support unit 500 may be configured to include an additional vertical bar 510, an additional horizontal bar 520, a third joint 530, and a wearable welding suit 540, as shown in FIG. .

The additional vertical bar 510 is connected to the second joint 440 constituting the support portion 400 and extends vertically, and is connected to the additional horizontal bar 520 through a third joint 530, which will be described later. It is an element.

This additional vertical bar 510 may be formed in the form of a bar having a predetermined length, and may be made of a non-conductive material such as wood, ceramic material, or synthetic resin material.

In addition, as shown in FIG. 4, the additional vertical bar 510 is formed as a multi-stage telescopic pipe and can be adjusted to a predetermined length by expanding and contracting as it slides. In this case, the additional vertical bar 510 can be fixed in an adjusted length state by tightening a length adjustment bolt (not shown).

The additional horizontal bar 520 is connected to the additional vertical bar 510 via the third coint 530 and extends in the horizontal direction to support the wearable welding suit 540, which will be described later.

This additional horizontal bar 520 may be formed in the form of a bar having a predetermined length, and may be made of a non-conductive material such as wood, ceramic material, or synthetic resin material.

In addition, as shown in FIG. 4, the additional horizontal bar 520 is formed as a multi-stage telescopic pipe and can be adjusted to a predetermined length by expanding and contracting as it slides. In this case, the additional vertical bar 510 can be fixed in an adjusted length state by tightening a length adjustment bolt (not shown).

The third joint 530 is a component that connects the additional vertical bar 510 and the additional horizontal bar 520 and allows angle adjustment of the additional vertical bar 510.

This third joint 530 can be manufactured to adjust the angle of the additional vertical bar 510 in the up and down or left and right directions, and has a fixing bolt to fix the additional vertical bar 510 in an adjusted angle. It can be configured.

The wearable welding suit 540 is worn on the user's body while fixed to the additional horizontal bar 520, and is partially or entirely made of a material with rigidity, so that the torch 100, the torch holder 300, and the support portion. It is a component that supports (400) while hanging on the body.

This wearable welding suit 540 is made of a non-conductive material such as synthetic resin and can be manufactured to be worn, for example, by hanging it on both shoulders of the user. Additionally, a fixing strap (not shown) is provided so that it can be fixed to the body.

Accordingly, the user can perform welding work by controlling the torch 100 while wearing the wearable welding suit 540.

At this time, the torch 100 is supported by the wearable welding suit 540 via the support part 300, so that welding work can be performed while being stably controlled.

As described above, the welding device 10 provided with a support portion according to an embodiment supports the torch 100 on the base material 1 or the ground through the configuration of the support portion 300, or supports the torch 100 on the base material 1 or the ground through the configuration of the wearable support portion 500. Through its configuration, it is possible to perform precise and stable welding by supporting it in a suspended state on the body.

The above-described embodiments are for illustrative purposes, and those skilled in the art will recognize that the above-described embodiments can be easily modified into other specific forms without changing the technical idea or essential features of the above-described embodiments. You will understand. Therefore, the above-described embodiments should be understood in all respects as illustrative and not restrictive. For example, each component described as single may be implemented in a distributed manner, and similarly, components described as distributed may also be implemented in a combined form.

The scope sought to be protected through this specification is indicated by the patent claims described later rather than the detailed description above, and should be interpreted to include the meaning and scope of the claims and all changes or modified forms derived from the equivalent concept. .

10: Welding device equipped with a support part
100: Torch
110: Tungsten electrode
120: gas connection
200: pulse generator
300: Torch holder
400: support part
410: horizontal bar
420: vertical bar
430: first joint
440: second joint
450: Caster
500: Wearable support part
510: Additional vertical bar
520: Additional horizontal bar
530: third joint
540: Wearable welding suit

Claims (6)

A torch equipped with a non-consumable tungsten electrode to generate arc heat through current supply to weld the base material and supply an inert gas to the welding area;
a welding controller connected to the torch to supply current to the tungsten electrode;
A torch holder detachably coupled to the torch;
A support part connected to the torch holder and including a support part that supports the base material or the ground and supports the torch holder with an adjustable angle; and
A wearable support part is connected to the support part and worn on the user's body to support the torch holder while hanging on the user's body,
The support part,
a horizontal bar connected to the torch holder and extending in a horizontal direction;
a vertical bar connected to the horizontal bar and providing support while supporting the base material or the ground;
a first joint connecting the horizontal bar and the torch holder and allowing angle adjustment of the torch holder; and
Includes a second joint that connects the vertical bar and the horizontal bar and allows angle adjustment of the horizontal bar,
The first joint is,
It includes a universal joint that allows angle adjustment in the up-down and left-right directions of the torch holder,
The second joint is,
Allows angle adjustment of the horizontal bar in at least one of the up-down and left-right directions, and includes a fixing bolt for fixing the horizontal bar in an angle-adjusted state,
The wearable support unit,
an additional vertical bar connected to the support unit and extending in a vertical direction;
an additional horizontal bar connected to the additional vertical bar and extending in the horizontal direction;
a third joint connecting the additional vertical bar and the additional horizontal bar and allowing angle adjustment of the additional vertical bar; and
A welding device equipped with a support portion, which is worn on the user's body in a state fixed to the additional horizontal bar and includes a wearable welding suit made of at least a portion of a rigid material to support the support portion. delete delete According to claim 1,
The horizontal bar and the vertical bar are,
A welding device equipped with a support portion, characterized in that it consists of a telescopic pipe that slides in multiple stages to expand and contract in length.
According to claim 1,
The support part,
A welding device provided with a support unit further comprising a caster installed on the vertical bar to movably support the vertical bar and allow movement of the torch. delete

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