KR101212604B1 - Gas pipe welder forged, molded and its manufacturing method torch tip - Google Patents

Abstract

The present invention relates to a method of forging and extruding a pipe of a gas welder torch tip used for gas welding or cutting, and to a torch tip of a gas welder formed by the same method, having an outer diameter of 11.9 mm and an inner diameter of 7.5 mm. The first step is a pipe cutting process for cutting a pipe to a length of 21 mm suitable for the tip forming length, and a material made of copper pipe having an outer diameter of 11.9 mm and an inner diameter of 7.5 mm was cut to a length of 21 mm in the pipe cutting process. At the same time, the jaw of 3mm in thickness and 11.9mm in thickness is formed at one end, and the remainder is expanded in 10.3mm and 23mm in length at the same time. In the process and the expansion pipe drawing process, the tube diameter is formed to expand the diameter of 8.3mm, the outer diameter of 10.3mm, the length of 23mm so that the end of the drawn material has an inner diameter of 5.03mm and an outer diameter of 7.6mm so as to have a total length of 26mm. In the third process, a total length of 26mm, a thickness of 3mm, an outer diameter of 11.9mm, and an inner diameter of 8.3mm are formed at one end, and a trunk having an outer diameter of 10.3mm, an inner diameter of 8.3mm, and an outer diameter of 7.6mm and an inner diameter at the end of the body. A gas welder torch tip is formed by forging a single pie into a 5.03mm nozzle, and the torch tip is easily produced without damage or deformation due to friction, etc., and the inner circumferential surface of the torch tip is smooth. It improves the performance of the gas stove by generating a stable flame, and has excellent straightness of the flame sprayed to the outside, so there is almost no vortex of gas, so it effectively blocks the high temperature heat or flame transmitted to the nozzle itself. By improving nozzle durability and operator safety, it is possible to use it stably and long-term, and it is easy to manufacture to reduce manufacturing cost The effect will be great, such as to minimize the product price to supply the torch tip for the amount of gas used in many industrial welding cheaper prices.

Description

Gas welder forged tip formed by forging a pipe and manufacturing method thereof {Gas pipe welder forged, molded and its manufacturing method torch tip}

The present invention relates to a method of forging and extruding a pipe of a gas welder torch tip used for gas welding or cutting, and to a torch tip of a gas welder formed by the same method.

In general, a torch (torch, blow pipe) used when welding or cutting a metal material uses a high temperature flame that burns while injecting a mixed gas through a torch tip.

The torch tip for generating flame is a gas injection nozzle which plays the most important role in determining the effect and performance of welding.

 The welding torch consists of a nozzle, an injector and a mixing portion where gas and oxygen are mixed.

Patent application No. 1997-032371 (July 11, 1997) relates to a method for manufacturing a nozzle and a welding tip of a welding torch for CO2 arc welding, and has a stepped portion formed at the end of the nozzle and the welded tip, and is fitted with a stepped heat resistance, abrasion resistance, Each cylinder is equipped with a high conductivity material, and the nozzle and the welding tip are bent inward to manufacture the nozzle and the welding tip by inserting the cylindrical ring into the step to fix the cylindrical ring to the nozzle and the welding tip. Even though the generated heat does not melt the end of the nozzle and the welding tip, other molten metal or foreign material does not weld the welding outlet hole and the welding line to the nozzle and the tip of the welding tip. As well as cost-effective, the material of the cylindrical ring is smooth, so that the wire can be supplied smoothly.

Patent application No. 1999-0005153 (February 12, 1999) relates to a torch, in particular, in the case of gas welding or cutting work, in order to generate a predetermined flame by mixing and controlling gas and air, While preventing a part of the flame from being transferred to the surroundings along the outer periphery of the spraying nozzle, the flame is sprayed properly and the vortex phenomenon is appropriately induced to improve the durability of the nozzle and the efficiency of the work. The present invention processes the inner diameters of the nozzle inner space and the distal end portion differently; By forming a plurality of grooves on the outer peripheral surface of the nozzle, a plurality of wing pins are also provided integrally to block control and thermal conduction of the sprayed flame, and to form a groove in the nozzle tip to cause the vortex phenomenon.

Utility Model Registration No. 20-0188730 (2000.05.01) improves the structure of the torch used for welding GTAW (Gas Tungten Arc Welding) to prevent the tungsten electrode (tungsten rod) from coming off due to overheating and oxidation of the welded part. The present invention relates to a torch structure for welding GTAW which improves the prevention and cooling effect and is suitable for shortening the nozzle replacement time. The torch cooling effect is formed by forming a collector of the torch for welding GTAW in a short length. It is to improve the bend and to prevent the bending due to overheating at the same time, two to four gas outlets are formed to keep the flow of the shielding gas smoothly.

Utility Model Registration No. 20-0382745 (Apr. 15, 2005) relates to a coupling structure of a nozzle and a hood for carbon dioxide welding, and more specifically, a plurality of control grooves and a vertical connection connecting the control grooves to the outer surface of the nozzle for the carbon dioxide welding. The present invention relates to a combination structure of a nozzle and a hood for carbon dioxide welding, which provides a convenience of work by forming a guide groove and forming a guide piece in the hood to adjust the length of the nozzle passing through the hood. In the combined structure of the hood and the carbon dioxide welding nozzle and hood that has a hood formed with a plurality of suction holes provided around the nozzle portion so that the welding fume can be discharged through the hood and the duct by the suction force of the motor, the surface of the nozzle The locking groove is formed at regular intervals but is connected by the guide groove in the longitudinal direction, and the guide piece is formed at the end of the hood. Will.

Patent Application No. 1997-032371 (July 11, 1997), Patent Application No. 1999-0005153 (1999.02.12), Utility Model Registration No. 20-0188730 (2000.05.01), Utility Model Registration No. 20-0382745 (2005.04 .15).

The present invention has been produced by cutting the gas welding torch tip or forging the material of the floor bar by the scratches generated during the processing on the inner surface of the torch tip due to the gas flow is not smooth and the correct flame generation In order to solve this problem, it is necessary to make a torch tip to solve this problem, and it is a cause of cost increase, so that the inner surface is easily damaged without friction or damage due to friction. The purpose is to produce a stable flame to produce a tip to improve the performance of the gas stove, as well as to reduce the manufacturing cost to supply the product at a lower price.

The present invention invented to achieve the above object,

The first process, which is a pipe cutting process for cutting copper pipes having an outer diameter of 11.9 mm and an inner diameter of 7.5 mm to a length of 21 mm suitable for the tip forming length,

In the pipe cutting process, a diameter of 11.9 mm and a diameter of 7.5 mm copper pipes cut into 21 mm lengths were expanded to 8.3 mm, and a jaw having a thickness of 3 mm and an outer diameter of 11.9 mm was formed at one end. The second process, which is an expansion pipe drawing process for drawing the body with a total length of 26 mm by simultaneously expanding the tube with an outer diameter of 10.3 mm and a length of 23 mm,

In the expansion pipe drawing process, the total length is 26mm, the inner diameter is 8.3mm, the outer diameter is 10.3mm, the length is 23mm, and the condensation process of forming a nozzle by condensing the end of the drawn material at the same time with the inner diameter of 5.03mm and the outer diameter of 7.6mm. In three steps,

A total length of 26mm and a chin with a thickness of 3mm, an outer diameter of 11.9mm and an inner diameter of 8.3mm are formed at one end, and a nozzle having an outer diameter of 10.3mm, an inner diameter of 8.3mm and an outer diameter of 7.6mm and an inner diameter of 5.03mm at the end of the body are single. Forging with pipe constitutes gas welder torch tip.

The present invention by the above configuration is easy to produce a torch tip without damage or deformation due to friction, such as the inner surface of the gas flow passage passage of the torch tip to generate a stable flame to generate a stable flame It improves performance and has excellent straightness of flame sprayed to the outside, so there is almost no vortex of gas, so it effectively blocks the high temperature heat or flame delivered to the nozzle itself to the surroundings, improving nozzle durability and worker safety In addition to the stable and long-term use, it is easy to manufacture, reducing manufacturing costs, minimizing the unit cost of the product, and the effect will be great, such as supplying a gas welding torch tip that is used in a large amount in the industry at a lower price.

In addition, the present invention has exemplified the best embodiment thereof, but is not limited thereto, and may be considered without departing from the scope of the present invention, which is limited to the appended claims. Of course.

1 is a process diagram illustrating an embodiment of the present invention.
Figure 2 is an exemplary view showing a configuration of a torch tip showing a completed state of the present invention.
3 is an exemplary state of use of the present invention.

The state of carrying out the present invention will be described in detail based on the steps as follows.

Step 1: Pipe Cutting Process

A copper pipe having an outer diameter of 11.9 mm and an inner diameter of 7.5 mm was cut into a length of 21 mm suitable for the tip forming length to obtain a raw material 100.

At this time, the cutting method and the tool will be various, and therefore will not be specifically limited, but the length is correct and the cutting surface should be smooth.

Also, depending on the size of the torch tip, the pipe size may change slightly.

Second Process: Expansion Drawing Process

In the pipe cutting process, a material 100 made of copper pipe having an outer diameter of 11.9 mm and an inner diameter of 7.5 mm cut into a length of 21 mm was placed in a molding socket 50, and the outer diameter was 8.25 mm, and the outer diameter of the head 21 was 11.9 mm. Slowly press-fit the expansion pipe 20 several times to expand the inner diameter to 8.3 mm, and the outside is formed with a jaw 11 having a thickness of 3 mm and an outer diameter of 11.9 mm at one end, and tapping the outer diameter with an outer diameter of 10.3 mm, At the same time as the tube is extended to 23mm in length and draws the body 12 to a total length of 26mm.

Here, the second process is referred to as drawing, which is called for convenience by increasing the length of the pipe and will not be constrained by the term, but the length is increased by smoothly expanding the inner diameter of the pipe and reducing the outer diameter. It will be longer.

Therefore, the mold such as the molding socket 100 or the expansion pipe pin 20 illustrated in the drawings is merely an example of carrying out this process, and should not be constrained. The molding socket 50 may be used for smoothness of the surface. While rotating, the forging die 51 made of a plurality of pieces inside the molding socket 50 will have a configuration of tapping the outer diameter.

Again, there will be changes in dimensions as needed, but the overall proportions will be the same.

Third Process: Shaft Pipe Process

In the expansion pipe drawing process, the nozzle 13 is formed by conduiting the end of the drawn material 100 with an inner diameter of 5.03 mm and an outer diameter of 7.6 mm at the same time as the inner diameter of 8.3 mm, the outer diameter of 10.3 mm, and the length of 23 mm so that the total length is 26 mm. The gas welder torch tip 10 obtained by forging the pipe of the present invention is completed.

At this time, the end 32 of the shaft pipe pin 30 constituting the nozzle 13 has an outer diameter of 5 mm, the remaining outer diameter is 8.25 mm, and the head 31 has an outer diameter of 11.9 mm. The shaft tube pin 30 is configured to be inserted into the interior of the material 100 and repeatedly typed into the molding socket 50 illustrated in FIG. 2 to condense the end of the material 100, which is also illustrated in the drawings. The mold is merely an example of carrying out this process and should not be bound by rights. Forging smoothness of the die is made of a plurality of pieces inside the molding socket 50 as the molding socket 50 rotates. 51) will be configured to tap the outer diameter.

The present invention formed by forging a pipe by the above-described process has a total length of 26mm and a jaw having a thickness of 3mm, an outer diameter of 11.9mm, an inner diameter of 8.3mm at one end, and a body having an outer diameter of 10.3mm and an inner diameter of 8.3mm, At the end of the body, a gas welder torch tip 10 is formed by forging a nozzle having an outer diameter of 7.6 mm and an inner diameter of 5.03 mm by a single pipe.

However, the dimensions defined here are related to the torch tip currently used the most, the size of the torch tip may vary depending on the intended use, but the overall ratio will be the same.

The present invention is to be used in the gas welding torch used in the industrial field, the industrial use value is great.

10: Torch Tip 11: Jaw 12: Torso
13: nozzle 20: expansion pipe 21: head
30: shaft tube pin 31: head 32: end
50: molded socket 51: forging die 100: material

Claims (2)

The first process, which is a pipe cutting process for constituting the material 100 by cutting a copper pipe having an outer diameter of 11.9 mm and an inner diameter of 7.5 mm to a length of 21 mm suitable for the tip forming length;
In the pipe cutting process, an outer diameter of 11.9 mm and an inner diameter of 7.5 mm of copper pipes cut into lengths of 21 mm were expanded to 8.3 mm, and one end of the tube had a thickness of 3 mm and an outer diameter of 11.9 mm. 11) is formed and the rest is drawn out at the same time as the outer diameter of 10.3mm, length 23mm, and the expansion and drawing process of drawing the trunk 12 with a total length of 26mm, and
In the expansion pipe drawing process, the nozzle 13 is formed by conduiting the end of the drawn material 100 with an inner diameter of 5.03 mm and an outer diameter of 7.6 mm at the same time as the inner diameter of 8.3 mm, the outer diameter of 10.3 mm, and the length of 23 mm so that the total length is 26 mm. A gas welder torch tip manufacturing method forging a pipe, characterized in that the third step is a shaft pipe process. delete

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