KR19990073879A - Miniature TIG Welding Torch and Chiller - Google Patents

Abstract

The present invention relates to a TIG (TUNGSTEN INERT GAS) welding apparatus, which is currently used small-tig welding torch (1) is air-cooled and can be welded only to the welding portion having a gap of 10mm or more, and also to move only the torch head Since the welding part is limited due to the fact that welding is impossible in the area where the product welding and the welding part interfere with the narrow gap of 10 mm or less, the welding part is practically impossible, and therefore the smallest TIG welding torch that can be applied to the welding part (2) And the controller 18 which can automatically set the refrigeration function by controlling the temperature of the water by the coolant temperature sensor 17 to improve the cooling function to prevent the phenomenon of overheating easily by the torch is made very small It relates to a very small TIG welding torch and a cooling device consisting of a cooling device (16) comprising a.

Description

Miniature TIG Welding Torch and Chiller

Generally, two or more objects or materials are joined in a molten or semi-melt state, or indirectly by adding a filler material between two objects and a metal joint joined by contacting a member at room temperature and applying pressure to bring the contact surface into close contact. There are several kinds of welding to be welded by welding. Among them, TIG welding method that joins the welding part by melting arcuate by using arc as the arc (ARC) is melted by the arc, Although it is low in welding quality, it has been widely used for precision welding of processed products and backside welding of pipes.

However, since there are various parts to be welded, but the gap between butt welds is 10mm or less, or when the parts such as the curved welds and the area caused by the interference between the product and the product need to be welded, the small-tig welding torch currently used Air-cooled current limit is used. When used for more than 1 minute, the torch is excessively damaged due to overheating and only the torch head is moved. Due to this limitation, various welding operations will be disrupted, requiring a more improved welding torch.

The present invention has been made in order to solve the problems as described above, the cooling apparatus for minimizing the welding torch to cool the welding torch to weld the site where the weld gap is difficult and the difficult welding by interference The micro-weld torch of the present invention produced a collet and a torch head integrally so that the performance of the welding torch does not fall when welding for a long time, and the torch body is freely wrapped around the torch body with heat-resistant rubber. In order to be bent, to reduce the welding torch thickness by arranging the coolant line and the gas line of the torch body in a straight line in order to produce a small size to be applied to a narrow area. For reference, the size of the micro-tig welding torch of the present invention is 13 mm in length, 8 mm in width, and torch body is 220 mm in length and 12 mm in width.

In addition, since the copper pipe which performs the cooling function of the ultra-small welding torch is manufactured to be small, smooth performance of the cooling function that can prevent overheating occurs when welding is performed with a current capable of welding. In order to equip the existing cooling system with a refrigerating function consisting of a controller that controls the temperature by a sensor that senses the temperature of the coolant, it allows the coolant to flow through the coolant line to the welding torch, and the radiator to the welding torch. By mounting, even the very small welding torch of the present invention increases the use time of the torch over a certain time so that the welding operation can be performed for a long time without overheating.

1 is a perspective view of a conventional TIG welding torch,

2 is a perspective view of a micro-tig welding torch and a detailed perspective view of the torch body according to the present invention;

3 is an overall configuration diagram of a TIG welding apparatus according to the present invention,

4 is a state diagram of application of a very small TIG welding torch applied to a narrow gap,

5 is an application state diagram of a TIG welding torch applied to an interfering welding part;

<Explanation of symbols for main parts of the drawings>

One… TIG welding torch, 2... Micro tig welding torch,

3... Torch head, 4... Torch Body,

5... Tungsten rod, 6... Collet,

7... Gas packing, 8... Gas cup,

9... Connector, 10.. Gas line,

11... Cooling water line, 12... Heat Resistant Rubber,

13... Copper pipe, 16... Chiller,

17... Detecting sensor, 18... Controller,

19... Welds. 20... radiator

Hereinafter, the configuration and operation of the present invention in detail based on the drawings.

Figure 1 shows the shape of a conventional small-tig welding torch 1, the overall structure of the micro-tig welding torch 2 of the present invention consists of a torch head 3 and the torch body 4, A cooling device 16 for cooling the welding torch is provided separately.

In more detail, as shown in FIG. 2, the torch head 3 includes an ultra-small gas nozzle (not shown) and an electrode that are placed in the torch head to concentrate the shielding gas to the weld part to prevent oxidation of the weld part. The ultra-small collet (6) having a function of preventing shielding of the weld from being lowered by the vortex of the gas while inserting the tungsten rod (5) to be used as The gas packing (7) made of ceramic material consists of three parts of the gas cup (8) in which the torch body (4) consists of the connector (9), the gas line (10) and the coolant line (11). The current flows through the connector and supplies gas and coolant through the gas line and the coolant line, and is also used in areas where welding is impossible due to interference between the product and the product. The said torch body in consideration of the deformation of the torch body (4) to be heat-resistant rubber 12 molded in the copper pipe 13 were made of a good flexible form.

In addition, as shown in FIG. 3, the cooling device 16 is welded in the overall configuration diagram of the TIG welding device of the present invention including the gas cylinder 14, the welding machine 15, the cooling device 16, and the welding torch 2. As an additional device in the welding device for preventing damage to the ultra-small TIG welding torch 2 due to overheating, the temperature of the water is controlled by a sensor 17 which detects the temperature of the cooling water to automatically maintain the refrigeration temperature. It has a refrigeration function to control the low temperature coolant flows to the torch body (4) attached to the controller 18 to control the temperature according to the season, and the radiator in the water tank of the cooling device (16) 20 to equip with smooth performance of the cooling function.

The micro-tig welding torch 2 of the present invention having the configuration as described above has a narrow gap of 10 mm or less, which is not applicable to the conventional torch 1 as shown in FIG. 4 or as shown in FIG. It is applied to the welding part where interference occurs and it works to perform a smooth welding function.

If described in detail the effects on the micro-tig welding torch and the cooling device of the present invention made of the above objects and configurations as follows.

The micro-tig welding torch of the present invention can be welded to a welded part having a narrow gap of 10 mm or less, which has not been welded in the past, and thus the scope of application has been expanded, and welding is possible even in areas where welding is impossible due to interference between the product and the product. In addition, the welding apparatus can be smoothly performed because the ultra-small welding torch can be efficiently cooled by the cooling device of the present invention to prevent overheating of the welding torch.

In addition, test welding of the device of the present invention to a prototype by applying a welding parameter of current / voltage: 150A / 20-22V, welding distance: 8 mm, and tungsten rod diameter: 2.4 mm showed good welding workability and function and efficiency. Got it.

Therefore, the device of the present invention is a very useful invention that can contribute to the production of a competitive product by improving the level of domestic welding technology can be applied to expand the site that can be welded.

Claims (5)

In the TIG welding torch, which is an apparatus for welding while supplying an inert gas to a welding portion through a tungsten electrode supporter, In order to prevent the welding torch from oxidizing the welding portion 19, the shielding gas can be concentrated in the welding portion 19, and the shielding of the welding portion due to the vortex of the gas is inserted while the tungsten rod 5 is fitted. Torch head consisting of a very small collet (6) with a function to prevent it, and a gas cup (8) containing a gas packing (7) made of a ceramic material which prevents gas from leaking backwards and prevents damage at high temperatures. (3) and, Miniature teak welding, characterized by consisting of a connector 9 for energizing current, a gas line 10 serving to supply gas and coolant, and a torch body 4 composed of coolant line 11. torch. The method of claim 1, Miniature TIG welding torch, characterized in that the connector (9), the coolant line (10), the gas line (11) in a straight line arrangement to produce a small torch body (4). The method of claim 1, Miniature TIG welding torch, characterized in that the torch body (4) is molded in the copper pipe (13) with a heat-resistant rubber (12) in order to be able to bend freely. A sensor 17 for sensing the temperature of the coolant to automatically maintain a constant temperature to prevent breakage of the micro-tig welding torch 2 due to overheating by welding, and the temperature of the water by the sensor 17 Cooling apparatus of the micro-tig welding torch, characterized in that the controller (18) is attached to cool the welding torch (2) with a low temperature cooling water. The method of claim 4, wherein Cooling device for a micro-tig welding torch, characterized in that the radiator (20) is mounted in the water tank of the cooling device (16) to further have a cooling function.