KR20110026209A - A torch for argon welding - Google Patents

Abstract

PURPOSE: A torch for an argon welder, which enables a user to conveniently mount various sizes of electrodes, is provided to increase welding efficiency by rapidly radiating the welding heat through a thermal absorption layer and heat radiating layer of a head dummy. CONSTITUTION: A torch for an argon welder comprises a torch head(130) and a head dummy(150). The torch head is located on the upper end of the torch body. The electrode is inserted into the torch head. The head dummy is detachably combined at least one side of the torch head. A heat absorbing layer, an insulating layer, and a heat radiating layer are successively laminated in the inside of the head dummy.

Description

Torch for Argon Welding

The present invention relates to a torch for an argon welder. More particularly, the present invention relates to a torch for an argon welder which can improve welding structure by improving the torch structure of an argon welder, thereby facilitating welding, and which can be easily mounted and used with electrodes of various sizes.

Generally, welding can be classified into argon welding, gas welding, resistance welding, and special welding. In the argon welding, an arc is formed between the electrode and the electrode by using discharge, and the welded portion is melted and welded by the heat generation.

When the argon welding is a metal or active metal having a high melting point, work is performed in a chamber filled with an inert gas because the welding site is contaminated by reacting with the atmosphere.

Alternatively, after performing a welding operation with a welding electrode equipped with a nozzle in which inert gas is injected, a method of continuously injecting an inert gas until the welding portion is sufficiently cooled is used.

The electrodes used for argon welding include a consumable electrode that melts a welding rod that is an electrode itself, and a non-consumable electrode that melts and joins a material without melting the electrode. Tungsten Inert Arc Welding (TIG).

TIG welding is a welding method in which heat is generated by argon by generating argon between a tungsten electrode and a base material (weld material) under an atmosphere of argon gas, which is an inert gas, and thereby the base material and the electrode can be melted to join metals.

As described above, the welding machine using argon generates a voltage so that each electrode is generated, a torch having a cable connected to the welding machine body, and having a tungsten electrode installed at a discharge port, and an argon generated between the welding machine torch and the base material. A cable connecting the main body and the base material, a gas storage tank connected to the welder main body to supply argon gas to the welder torch, and a switch box for controlling the operation of the welder.

1 is a perspective view of a conventional torch for an argon welder, and FIG. 2 is a view showing the torch head region of FIG. 1.

As shown in FIG. 1, the conventional torch 1 includes a torch body 10 to which a cable c is connected and serves as a handle, a torch head 30 to which an electrode rod 5 is inserted, and a torch body 10. ) And an extension 20 extending from the torch head 30. Here, argon gas is supplied from the gas storage tank to the torch body 10, the extension part 20, and the torch head 30.

The torch head 30 is fitted with electrodes (eg, tungsten electrodes) of various sizes depending on the application, and one side (right side in the drawing) of the electrodes, which is not directly used for welding, is sealed by the ceramic cap 40. do. A portion of the electrode rod (left side in the drawing) used directly for welding is provided to be covered by the ceramic cup 50.

In such a configuration, the torch 1 performs argon welding.

Meanwhile, as shown in FIG. 2, the torch head 30 may be in a state of high temperature and high pressure due to argon gas and heat, and thus may be damaged when used for a long time.

Therefore, the torch head 30 is manufactured by including separate protection members 31 and 32 to protect the inside and the outside of the torch head 30 using a ceramic or Teflon material.

However, since the torch head including the protection member made of ceramic or Teflon as described above is integrally formed with the protection member, the torch head is not only easily replaced even when broken, but also does not dissipate heat, which may cause burns.

In addition, the torch uses a separate electrode inserting aid that is different for each size in order to properly use electrodes of various sizes, and there is a problem in that the replacement of the electrodes is very inconvenient.

Therefore, the present invention has been invented to solve this problem, to improve the torch structure of the argon welder to increase the welding and heat dissipation efficiency, and to provide a torch for argon welders that can be easily used by mounting a variety of welding rods of that size There is a purpose.

The present invention is located on the top of the torch body in which the gas inlet is built in the torch head is inserted into the electrode; And a head pile detachably coupled to at least one side of the torch head, wherein the head pile has at least one portion of an inner side or an outer side of the torch head made of copper. To provide.

The head pile includes a heat absorbing layer and a heat dissipating layer made of copper; And a gasket interposed between the heat absorption layer and the heat dissipation layer.

The torsion welder for argon further includes a collet part embedded in the head pile and the torch head, wherein the collet part includes a collet chuck into which electrodes of various sizes are inserted; And a collet body that surrounds the collet chuck and fixes the electrode rod.

The collet chuck is divided into one side is formed an insertion hole is inserted into the welding rod, the collet body may be to wrap the collet chuck to reduce the size of the insertion hole.

According to the torch for argon welder of the present invention, the torch structure of the argon welder can be improved to quickly and effectively dissipate heat generated during welding, thereby improving welding efficiency, and it is convenient to mount and use electrodes of various sizes. There is an advantage.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. First of all, in adding reference numerals to the components of each drawing, it should be noted that the same reference numerals are used as much as possible even if displayed on different drawings. In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear.

Figure 3 is a perspective view of the torch for argon welding machine of the present invention, Figure 4 is a partially exploded perspective view of Figure 3, Figure 5 is a cross-sectional view of the pile of torch of Figure 3, Figure 6 is an exploded perspective view of the collet portion of Figure 3 7 is a view showing the operation of the collet unit.

As shown in FIG. 3, the torch 101 for the argon welder of the present embodiment is located at the upper end of the torch body 110 to which the cable c is connected, and the welding rod 105 is inserted into the torch body 110. It may include a head 130, and a head pile 150 detachably coupled to at least one side of the torch head 130.

The torch body 110 has a gas inlet (not shown) in which argon gas is introduced from a gas storage tank (not shown), and serves as a handle for the user to hold by hand. And to one side of the torch body 110 is mounted a cable (c) connecting the welder body and the base material so that an arc is generated between the torch 101 and the base material.

The torch head 130 may be positioned at an upper end of the torch body 110 by an extension part 120 extending from the torch body 110 to a predetermined length, and may have a shape in which left and right sides are opened. The electrode 105 is mounted to penetrate the torch head 130 through the opened space. And the open side of the torch head 130 is detachably coupled to the ceramic cap 140 for sealing one side of the welding rod 105 penetrating the torch head 130, the other side of the head pile 150 is removable Possibly mounted.

The ceramic cap 140 surrounds the electrode 105 so that the protruding tungsten electrode 105 is not exposed as shown in FIG. 4, and prevents the argon gas injected through the gas inlet from leaking. It may be configured to adjust the length of the electrode rod 105 is inserted into the torch head 130.

On the other hand, the head dummy 150 may be coupled to at least one side of the opening of the torch head 130, in this embodiment is mounted on one side (left side in the drawing) where the electrode rod 105 used directly for welding is located. do.

The head pile 150 serves to protect the torch head 130 in an environment of high temperature and high pressure during welding. To this end, the head pile 150 has a heat absorbing layer 152 formed on the inner side toward the electrode rod 105 so as to quickly dissipate heat generated during welding, and a heat dissipating layer 151 formed on the outside thereof. The insulating layer 153 may be formed and configured in three stages.

At this time, by varying the material of the heat absorption layer 152, heat dissipation layer 151, insulating layer 153 it is possible to ensure sufficient durability and maximize the effect of heat dissipation. For example, as shown in FIG. 5, the head pile 150 is formed of a heat absorbing layer 152 of copper or an alloy material including copper, and a heat dissipating layer 151 of a copper material. The insulating layer 153 formed between the absorbing layer 152 and the heat dissipating layer 151 may be formed of a non-asbestos material gasket.

In particular, when the heat absorption layer 152 is formed of a copper alloy, it is easy to process, has good heat transfer performance, and may be formed of brass having high corrosion resistance. In addition, the heat absorbing layer 152 and the heat dissipating layer 151 may be formed within a thickness of 1 to 5 mm so as to more efficiently dissipate heat. This range can effectively achieve heat transfer while obtaining minimum strength. That is thick.

According to the above configuration, the material of the copper or copper alloy material constituting the heat absorbing layer 152 and the heat dissipating layer 151 of the head pile 150 to facilitate the heat transfer, the torch head after welding demonstration or welding ( The heat remaining in 130 is quickly absorbed and then released into the air to cool.

In addition, the gasket, which is a material of the insulating layer 153, may be made of an insulating material such as a non-asbestos material so as to electrically shield the interior and exterior environments in which the electrode 105 is inserted, thereby improving welding performance. In particular, the gasket performs a function of reinforcing strength and improving durability.

Therefore, the torch 101 equipped with the head pile 150 of the present embodiment may not only increase welding and heat dissipation efficiency, but also be damaged when used for a long time because the head pile 150 is detachably coupled to the torch head 130. Or when the end of life is to replace the new head pile 150 can extend the life of the torch head 130.

On the other hand, the torch head 130 is provided with a collet 160 to easily be inserted into the electrode rod 105 of various sizes to be fixed to the torch head 130, the electrode rod 105 without the need for a separate auxiliary member conventionally Can be exchanged.

The collet 160 is a collet body for fixing the electrode rod 105 while wrapping the collet 161 and the collet chuck 161 is inserted into the electrode rod 105 of various sizes as shown in FIG. And 163.

One side of the collet chuck 161 is divided into an insertion hole 161a into which the electrode rod 105 is inserted. The collet chuck 161 may have a long pipe shape and a screw 161c on the other side thereof.

The insertion hole 161a is disposed in a central area divided into three parts of the extension part 161b of the collet chuck 161 and preferably has a size larger than that of the electrode rod 105 so that various sizes of electrode rods 105 can be inserted. Do.

Therefore, the electrode rod 105 may be inserted into the insertion hole 161a of the collet chuck 161 and may be installed inside the torch head 130 and the head pile 150.

The collet body 163 may wrap the collet chuck 161 to reduce the size of the insertion hole (161a) in which the electrode rod 105 is inserted, this operation is shown in FIG.

That is, the collet body 163 has a pressing part 163a which is in contact with the insertion hole 161b of the collet chuck 161 and the pressing part 163a is in contact with the expansion part 161b so that the insertion hole ( As the size of 161a decreases gradually, the electrode 105 is fixed and does not move.

Therefore, by using the collet 160 of the present embodiment described above, it is possible to easily mount and use welding rods of various sizes.

In addition, the torch 101 of the present invention is provided so that the head pile 150 forms at least a part of the torch head 130 unlike the above-described embodiment, and the inner or outer side of the torch 101 is formed of a copper material. It may be made of.

That is, in the above-described embodiment, the head dummy 150 is detachably coupled to the torch head 130 but may be integrally formed to form the torch head 130.

Thus, according to the torch 101 for argon welders of the present invention, the torch structure of the argon welder can be improved to improve welding and heat dissipation efficiency, and electrodes of various sizes can be easily mounted and used.

The foregoing description is merely illustrative of the technical idea of the present invention, and various changes and modifications may be made by those skilled in the art without departing from the essential characteristics of the present invention. Therefore, the embodiments disclosed in the present invention are not intended to limit the technical idea of the present invention but to describe the present invention, and the scope of the technical idea of the present invention is not limited by these embodiments. The protection scope of the present invention should be interpreted by the following claims, and all technical ideas within the equivalent scope should be interpreted as being included in the scope of the present invention.

1 is a perspective view of a torch for a conventional argon welder.

FIG. 2 illustrates the torch head region of FIG. 1. FIG.

Figure 3 is a perspective view of the torch for argon welders of the present invention.

4 is a partially exploded perspective view of FIG. 3.

5 is a cross-sectional view of the pile of torch of FIG.

6 is an exploded perspective view of the collet portion of FIG.

7 is a view showing the operation of the collet portion.

<Description of reference numerals for main parts of the drawings>

1, 101: torch 5, 105: electrode

10, 110: torch body 20, 120: connection part

30, 130: torch head 40, 140: ceramic cap

150: torch pile 160: collet portion

161: collet chuck 163: collet body

Claims (5)

A torch head in which an electrode is inserted and positioned at the top of the torch body having a gas inlet; And a head pile detachably coupled to at least one side of the torch head. The head pile is a torch for an argon welder, characterized in that the heat absorbing layer, the insulating layer, the heat dissipating layer are formed in this order from the inside. The method of claim 1, Torch for argon welder, characterized in that the heat absorption layer and the heat dissipation layer is formed of at least one copper. The method of claim 1, Torch for argon welder, characterized in that the heat absorption layer is formed of brass. The method of claim 1, Torch for argon welder, characterized in that the insulating layer is a non-asbestos material gasket. The method according to any one of claims 1 to 4, Torch for argon welding machine, Further comprising a collet portion embedded in the head pile and the torch head, The collet part is a collet chuck into which electrodes of various sizes are inserted; And a collet body surrounding the collet chuck to fix the electrode rod, The collet chuck has one side divided into three insertion holes into which an electrode rod is inserted, and the collet body wraps the collet chuck to reduce the size of the insertion hole.

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