CN2129196Y - Argon-arc welding torch with snake-shape artificial tungsten - Google Patents

Abstract

The utility model relates to an argon-arc welding torch with snake-shaped artificial tungsten, comprising a torch head (1), a torch body (2), an air cock (3), a handle (4), air and electricity guiding pipes (5), air and electricity quick joints (6), etc. The torch head (1), the torch body (2) and the handle (4) form a 1 shape; the torch body can be optionally twisted and bent, has no deformation and can spirally carry out weld around the periphery of a tube wall; the air cock is arranged on the handle and matched with the core of the handle to cause the torch body to extend or shorten; weld can be carried out by penetrating through an interstice of at least 20 millimeters; weld can be carried out on a weld crater which can be seen with the help of a reflector; a back weld crater can be welded with a pipe in the middle; an internal-mounted stroke tungsten electrode clamping mechanism is arranged in the torch head; the tungsten electrode is fixed in the process of screwing division fluid; each joint of the air and electricity guiding pipes is sealed by screws, can be dismounted randomly and is provided with the air and electricity quick joint; the air joints adopt pressing-in joints, and the electricity joints adopt screwing-in joints, which can be completed in 3-4 seconds; the outer sides of the quick joints are covered with safety insulation protecting films to withstand voltage as high as 1000V The utility model has the advantages of reliable performance and convenient operation.

Description

Argon-arc welding torch with snake-shape artificial tungsten

The invention belongs to the welding gun field, be specifically related to a kind of hand-operated snaky argon arc welding gun with tungsten pole.

At present, the domestic and international manual tungsten pole argon arc gun that uses, a kind of is T type fixed angle hard structure, promptly the rifle head is fixed on the body of a gun; A kind ofly can in 45 °, turn quarter bend for rifle head and body of a gun connection place; More than two kinds of welding guns can not satisfy the needs of various soldering angles far away.As the high temperature in the super critical boiler in thermal power plant, pressure piping, the welding of intensive tube bank, pipe row, fin panel casing, the welding of the narrow nest of tubes of raying in the nuclear power station nuclear reactor, the welding that high temperature, high pressure tube bank, pipe are arranged in oil, the chemical industry etc.Because the body of a gun that existing welding gun all is a hard structure connects with head, can not crooked stretch in the narrow tube gap and weld, some welding portion need be dismantled and carry out, therefore delay the duration, dismantle the more workpiece of number of times simultaneously and easily cause fatigue, directly have influence on the quality of engineering, the loss that causes thus is very large.

The purpose of this invention is to provide a kind of rifle head, the body of a gun, handle and be " one " font, the body of a gun is indeformable, the telescopic hand-operated snaky argon arc welding gun with tungsten pole of distortion and crooked back arbitrarily.

This hand-operated snaky argon arc welding gun with tungsten pole, form by rifle head (1), the body of a gun (2), air cock (3), handle (4), gas, conductivity cell (5), gas, electric snap joint (6) etc., it is characterized in that being provided with built-in one stroke tungsten electrode clamp mechanism rifle head (1), can twist and crooked and scalable shell is to be in-line before and after the body of a gun (2) of metal hose, the displaceable handle (4) to connect successively and constitute the welding gun body, air cock (3) is installed on the handle (4).

This welding gun rifle head (1) is by porcelain mouth (1-1), honey seal ring (1-2), shunting sieve nest (1-3), tungsten electrode (1-4), tungsten electrode folder (1-5), the tungsten electrode body (1-6) that is fixedly clamped, connector (1-7) is formed, wherein, tungsten electrode (1-4) penetrates tungsten electrode folder (1-5), the assembly of tungsten electrode (1-4) and tungsten electrode folder (1-5) is put into the tungsten electrode body (1-6) that is fixedly clamped, cooperates its disposable interior fixing by shunting sieve nest (1-3) and the tungsten electrode body (1-6) that is fixedly clamped, porcelain mouth (1-1) is fixed in shunting sieve nest (1-3), and connector (1-7) is fixed on the tungsten electrode body (1-6) that is fixedly clamped and goes up and form rifle head (1).

This welding gun body of a gun (2) is by coiled pipe joint (2-1), (2-3), metal hose (2-2), airway pressing groove (2-4), airway (2-5), electric lead (2-6), lead pressing groove (2-7), (2-9), form with the connector (2-8) that airway pressing groove (2-4) combines as a whole, wherein, electric lead (2-6) passes back one of wireway (2-5) and is pressed into lead pressing groove (2-9), the other end is pressed into lead pressing groove (2-7), airway (2-5) be enclosed within respectively that tungsten electrode is fixedly clamped that body (1-6) is gone up and airway pressing groove (2-4) on, by coiled pipe joint (2-1), (2-3), connector (2-8) is connected and fixed with connector (1-7) and handle core (4-1) respectively, constitutes the body of a gun (2).

The handle of this welding gun (4) is by handle core (4-1), the gas that connects with handle core, electric connection (4-2), handle casing (4-9) is formed, gas, electric connection (4-2) is by gas, conductivity cell (4-3), connector (4-4), nut (4-5), be equipped with female (4-6), the gas of band lead pressing groove (4-8), conductivity cell (4-7) is formed, wherein, with gas, conductivity cell (4-3) passes connector (4-4), connector (4-4) is fixed on the handle core (4-1), gas, conductivity cell (4-7) and gas, conductivity cell (4-3) connects, software gas, the electric lead of conductivity cell (5) is pressed in the lead pressing groove (4-8), and airway is by nut (4-5), be equipped with female (4-6) and be fixed on gas, on the conductivity cell (4-7).

The air cock of this welding gun (3) cooperates the location to make the displacement of handle casing (4-9) front and back with handle core (4-1), the body of a gun (2) is elongated or shortened.

Use this welding gun to have the following advantages:

1. rifle head, the body of a gun, handle are " one " font, and the body of a gun can arbitrarily twist and be crooked and indeformable, the welding of can spiraling around the tube wall periphery;

2. can pass minimum and be 20 millimeters slit the rear of tube mouth is welded, the weld bond that can see by reflective mirror all can weld;

3. the rifle head is provided with built-in one stroke tungsten electrode clamp mechanism, is fixed at a minute fluid rundown process tungsten electrode;

4. the body of a gun can elongate or shorten as required, and behaviour does easy to use;

This welding gun has novel structure, and is economical and practical, and characteristics such as dependable performance can have the rifle body of all size and be furnished with corresponding tungsten electrode.

Below in conjunction with accompanying drawing embodiments of the invention are described further:

Fig. 1 is the hand-operated snaky argon arc welding gun with tungsten pole schematic diagram, is made up of rifle head (1), the body of a gun (2), air cock (3), handle (4), gas, conductivity cell (5), gas, electric snap joint (6).

Fig. 2 is the profile of rifle head (1) and the part drawing of forming rifle head (1), (1-1) be flange-cooled ceramic mouth (can not be with fin), (1-2) sealing ring of making for insulating materials, (1-3) be argon gas shunting sieve nest, the shunting sieve is fixed on the sieve nest head, sieve nest is that metal material is made, the shunting sieve is 80～100 purpose copper or stainless (steel) wires, some stack the sieve nest of packing into, 1-4 is a tungsten electrode, 1-5 is metal tungsten electrode folder, two/one length is three lobes or pintongs body structure, (1-6) be the metal tungsten electrode body that is fixedly clamped of band bulge loop, (1-7) connector of making for insulating materials, wherein, tungsten electrode (1-4) is penetrated tungsten electrode folder (1-5), the assembly of tungsten electrode (1-4) and tungsten electrode folder (1-5) is put into the tungsten electrode body (1-6) that is fixedly clamped, being screwed into the tungsten electrode body (1-6) that is fixedly clamped by shunting sieve nest (1-5) fixes its disposal screw thread, form built-in one stroke tungsten electrode clamping and fixing body, porcelain mouth (1-1) is screwed in shunting sieve nest (1-3), and insulation connector (1-7) is screwed in the tungsten electrode body (1-6) that is fixedly clamped and goes up and form rifle head (1).

Fig. 3 is the half sectional view of the body of a gun (2), by coiled pipe joint (2-1), (2-3), metal hose (2-2), the airway pressing groove (2-4) of band bulge loop and the airway (2-5) that top-quality rubber is made, electric lead (2-6), lead pressing groove (2-7), (2-9), form with the connector (2-8) that airway pressing groove (2-4) combines as a whole, at first lead (2-6) being penetrated wireway (2-5) back one end is pressed into lead pressing groove (2-9) and puts metal hose (2-2), airway (2-5) is enclosed within tungsten electrode and is fixedly clamped on the bulge loop of body (1-6), be screwed on the insulation connector (1-7) by coiled pipe joint (2-1), airway is clamped in the process of tightening, the other end of lead is pressed into lead pressing groove (2-7), the other end of airway is enclosed within on the airway pressing groove (2-4) of band bulge loop, connect by the end internal thread of connector (2-8) with the handle core (4-1) of Fig. 4, connect with the same end external screw thread of handle core (4-1) by coiled pipe joint (2-3) again, wireway had been pressed in the pressing groove (2-4) in tightening, constitute sealing and connect, body of a gun this moment (2) installs.

Fig. 4, Fig. 5 is arc welding gun switch (3), handle core (4-1) and metal gas, the generalized section of electric connection (4-2), the switch of being made by insulating materials emits (3-1), the air cock body (3-2) that emits the metal material that combines as a whole to make with switch, air cock sealing gasket (3-3), handle core (4-1), the metal gas that connects with handle core, electric connection (4-2) is formed, metal gas, electric connection (4-2) is by gas, conductivity cell (4-3), connector (4-4), nut (4-5), head has be equipped with female (4-6) of tapering, the gas of band lead pressing groove (4-8), conductivity cell (4-7) is formed, and air cock body (3-2) passes sealing gasket (3-3) and closely cooperates to be fixed in the handle core (4-1) and can to change 90 ° of scope inward turnings by screw thread and turn on and off argon gas.Gas, conductivity cell (4-3) are penetrated connector (4-4) and weld with argent, connector (4-7) is fixed on the handle core (4-1), the electric lead of software gas, conductivity cell (5) be pressed into the interior airway of lead pressing groove (4-8) be inserted in (4-7) with (4-8) in the middle of the bulge loop place, by nut (4-5) and be equipped with female (4-6) and be tightened on gas, conductivity cell (4-7) to go up this moment sebific duct sealed.B-B figure is the sectional drawing of lead pressing groove (4-8).

Fig. 6 is a displacement schematic diagram before and after the handle (4), (4-9) be handle casing, make by insulating materials, the present embodiment handle casing is provided with the hole that can pass air cock (3) in (A-1), (A-2), (A-3) three positions, air cock (3) and handle core (4-1) pass (A-1) when the hole cooperates the body of a gun the longest, air cock (3) and handle core (4-1) pass (A-3) when the hole cooperates the body of a gun the shortest.

The software gas of present embodiment, conductivity cell have adopted and have added the catch net of washing the continuous blending litzendraht wire of mud, it has constituted gas, the electric top-quality rubber conduit of not being afraid of the collision extruding, each joint of gas, conductivity cell adopts helixseal, can dismantle at any time, withstand voltage 0.25MPa, but in the environment of operate as normal about ± 40 ℃; Gas, electric snap joint are housed; the gas joint adopts and is pressed into connection; electric connection adopts and is screwed into connection; just can finish in 3～4 seconds, snap joint and pneumoelectric conduit connection place are provided with an articulation, can change the rifle body of different size at any time; outside pneumoelectric snap joint, be surrounded by the safe insulation diaphragm; 1000 volts of proof voltages, dependable performance, easy to use.

After gas, electric snap joint connect, connect power supply, open argon gas and can enter duty.

Claims (5)

1, a kind of hand-operated snaky argon arc welding gun with tungsten pole, form by rifle head (1), the body of a gun (2), air cock (3), handle (4), gas, conductivity cell (5), gas, electric snap joint (6), it is characterized in that being provided with built-in one stroke tungsten electrode clamp mechanism rifle head (1), can turn round and crooked and scalable shell is to be in-line before and after the body of a gun (2) of metal hose, the displaceable handle (4) to connect successively and constitute the welding gun body, air cock (3) is installed on the handle (4).

2, hand-operated snaky argon arc welding gun with tungsten pole according to claim 1, it is characterized in that rifle head (1) is by porcelain mouth (1-1), honey seal ring (1-2), shunting sieve nest (1-3), tungsten electrode (1-4), tungsten electrode folder (1-5), the tungsten electrode body (1-6) that is fixedly clamped, connector (1-7) is formed, wherein, tungsten electrode (1-4) penetrates tungsten electrode folder (1-5), the assembly of tungsten electrode (1-4) and tungsten electrode folder (1-5) is put into the tungsten electrode body (1-6) that is fixedly clamped, cooperates its disposable interior fixing by shunting sieve nest (1-3) and the tungsten electrode body (1-6) that is fixedly clamped, porcelain mouth (1-1) is fixed in shunting sieve nest (1-3), and connector (1-7) is fixed on the tungsten electrode tungsten electrode body (1-6) that is fixedly clamped and goes up and form rifle head (1).

3, hand-operated snaky argon arc welding gun with tungsten pole according to claim 1, it is characterized in that the body of a gun (2) is by coiled pipe joint (2-1), (2-3), metal hose (2-2), airway pressing groove (2-4), airway (2-5), electric lead (2-6), lead pressing groove (2-7), (2-9), form with the connector (2-8) that airway pressing groove (2-4) combines as a whole, wherein, electric lead (2-6) passes back one of wireway (2-5) and is pressed into lead pressing groove (2-9), the other end is pressed into lead pressing groove (2-7), airway (2-5) be enclosed within respectively that tungsten electrode is fixedly clamped that body (1-6) is gone up and airway pressing groove (2-4) on, by coiled pipe joint (2-1), (2-3), connector (2-8) is connected and fixed with connector (1-7) and handle core (4-1) respectively and constitutes the body of a gun (2).

4, hand-operated snaky argon arc welding gun with tungsten pole according to claim 1, it is characterized in that torch handle (4) is by handle core (4-1), the gas that connects with handle core, electric connection (4-2), handle casing (4-9) is formed, pneumoelectric joint (4-2) is by gas, conductivity cell (4-3), connector (4-4), nut (4-5), be equipped with female (4-6), the gas of band lead pressing groove (4-8), conductivity cell (4-7) is formed, wherein, with gas, conductivity cell (4-3) passes connector (4-4), connector (4-4) is fixed on the handle core (4-1), gas, conductivity cell (4-7) and gas, conductivity cell (4-3) connects, software gas, the electric lead of conductivity cell (5) snaps in the lead pressing groove (4-8), and airway is by nut (4-5), be equipped with female (4-6) and be fixed on gas, on the conductivity cell (4-7).

5,, it is characterized in that air cock (3) cooperates the location to make the displacement of torch handle shell (4-9) front and back with handle core (4-1), elongate or shorten the body of a gun (2) according to claim 1,4 described hand-operated snaky argon arc welding gun with tungsten pole.

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