CN101380690B - TIG welding gun and welding cooling method - Google Patents
TIG welding gun and welding cooling method Download PDFInfo
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- CN101380690B CN101380690B CN2007101470875A CN200710147087A CN101380690B CN 101380690 B CN101380690 B CN 101380690B CN 2007101470875 A CN2007101470875 A CN 2007101470875A CN 200710147087 A CN200710147087 A CN 200710147087A CN 101380690 B CN101380690 B CN 101380690B
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- 238000003466 welding Methods 0.000 title claims abstract description 98
- 238000001816 cooling Methods 0.000 title claims abstract description 67
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims abstract description 74
- 229910052721 tungsten Inorganic materials 0.000 claims abstract description 74
- 239000010937 tungsten Substances 0.000 claims abstract description 74
- 239000000498 cooling water Substances 0.000 claims abstract description 27
- 238000000034 method Methods 0.000 claims abstract description 12
- 230000001154 acute effect Effects 0.000 claims abstract description 4
- 238000009826 distribution Methods 0.000 claims abstract description 3
- 230000001681 protective effect Effects 0.000 claims description 31
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 20
- 239000000919 ceramic Substances 0.000 claims description 3
- 238000010791 quenching Methods 0.000 claims description 3
- 230000001105 regulatory effect Effects 0.000 claims description 3
- 239000007921 spray Substances 0.000 claims description 3
- 230000006835 compression Effects 0.000 abstract 1
- 238000007906 compression Methods 0.000 abstract 1
- 238000007789 sealing Methods 0.000 description 14
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000008393 encapsulating agent Substances 0.000 description 2
- 238000009958 sewing Methods 0.000 description 2
- 235000019628 coolness Nutrition 0.000 description 1
- 208000002925 dental caries Diseases 0.000 description 1
- 230000003292 diminished effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000033764 rhythmic process Effects 0.000 description 1
- 238000005493 welding type Methods 0.000 description 1
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Abstract
The invention discloses a TIC welding torch; a torch head includes a tungsten electrode, a shielding gas hood and a fixing seat; a torch body includes an insulating liner, a cooling tube cylinder, a tungsten electrode clamp and a compression adjusting rod which are coaxially sheathed from the outside to the inside; the front end of the tungsten electrode clamp is against to the position of a conical hole in front of a through hole in the fixing seat; the shielding gas hood is sheathed in the periphery of the fixing seat body; the front end of the cooling tube cylinder is sheathed to the connection part of the fixing seat; a cooling water channel is formed between the insulating liner and the cooling tube cylinder; an annular gas chamber used as a shielding gas channel is formed in the torch body; gas distribution holes arranged in an acute angle with the coaxial direction are uniformly arranged along the circumferential direction on the fixing seat. In the welding cooling method, the torch body is cooled by the cooling water; the shielding gas firstly cools the tungsten electrode and the surrounding parts and then carries out protection to a welding line during a welding process. The welding torch and the welding cooling method can effectively cool the welding torch and the torch body, the tungsten electrode and the surrounding parts, and can avoid the leakage of the cooling water; the welding torch has a simple structure and is easily dismounted, thus improving the welding quality and the service life of the welding torch.
Description
Technical field
The present invention relates to a kind of welding equipment, particularly a kind of TIG weldering welding gun and cooling means.
Background technology
TIG weldering welding gun tungsten electrode portion temperature in welding process is high, need carry out rapid, lasting cooling to parts around tungsten electrode and the welding gun, could guarantee that tungsten electrode is not influenced welding quality by quick scaling loss.As shown in Figure 1, the welding gun of prior art is by mandrel 24, cooling tube cylinder 23, insulating bushing 22, Connection Block 36, sealing ring 35,38, water dispenser 37, radially limbers 28,29, friction top 39, tungsten electrode folder 34 and compress adjusting rod 33 etc. and form.Protective gas dispensing orifice 26 is positioned at the front end of mandrel 24; the front end of cooling tube cylinder 23 has water inlet 25 and water return outlet 30; the tungsten electrode folder is positioned at mandrel 24 inner chambers; by compressing adjusting rod 33 tungsten electrode rod 40 is fixed on the tungsten electrode folder 34; tungsten electrode folder 34 is bolted in and compresses adjusting rod 33, is unfavorable for the tungsten electrode rod of clamping different-diameter.Simultaneously, rifle head periphery is covered with a protection gas hood 41, and this protection gas hood 41 is fixed in the rifle head by being bolted in Connection Block 36, and forms cavity between protection gas hood 41 and the rifle head.The temperature of parts is the water circulation coolings by open type around the tungsten electrode; be the axial water inlet pipe 27 of cooling water by the rifle body; inlet opening 25 by cooling tube cylinder 23 front ends; again by water dispenser 37; flow into the rifle head and protect cooling tungsten electrode and welding gun parts on every side in the gas hood 41 formed cavitys; the water return outlet 30 that flows back to cooling tube cylinder 23 by water dispenser flows back to axial return pipe 31 backwater more then, and the line segment of band arrow is represented described flow of cooling water direction.Thereby realize the cooling of parts on every side of Butt welding gun tungsten electrode and welding gun.This kind structure is leaked in order to prevent cooling water, needs strict sealing, in the front and back of water dispenser 37 sealing ring is housed all, and anterior sealing ring 38 is used to prevent that cooling water from flowing into tungsten electrode, and the sealing ring 35 at rear portion is used to prevent that cooling water from flowing out by protecting gas hood 41.Because welding temperature is very high; be easy to cause the distortion of protection gas hood 41 and the damage of sealing ring 35,38; cause cooling water to be easy to sew, seriously influence welding quality and welding gun service life, and this welding gun structure is comparatively complicated; require high to sealing property and encapsulant; under the working condition of high rhythm, do not allow to take place any leakage, for guaranteeing weldquality; the operator wants the running check welding gun and changes sealing ring, greatly reduces production efficiency.
Simultaneously; common cooling means is a water-cooling method, and the protective gas of low temperature is not fully utilized, and it directly sends into the commissure of welding assembly; especially in the winter time under the Han Leng environment, the protective gas of low temperature also is unfavorable for the protection of butt welded seam in welding process.
Summary of the invention
Be easy to sew at the cooling water that exists in the prior art, seriously influence welding quality and welding gun service life, the welding gun complex structure, to sealing property and the demanding problem of encapsulant, the rifle body, the tungsten electrode that the invention provides a kind of effectively cooling welding tool reach parts on every side, and can avoid sewing of cooling water, simple in structure being easy to dismantled, and can improve the welding quality and the welding gun in welding gun life-span.
Another object of the present invention is to provide a kind of rifle body, tungsten electrode of effectively cooling welding tool to reach parts on every side; and can avoid sewing of cooling water; and can improve the welding cooling means in welding quality and welding gun life-span, and strengthen the protection of butt welded seam in welding process.
Purpose of the present invention is realized by following technical scheme:
A kind of TIG weldering welding gun comprises the rifle head and the body of a gun, and described rifle head comprises tungsten electrode, protection gas hood and holder; The described body of a gun comprises that coaxial from outside to inside sheathed insulating bushing, cooling tube cylinder, tungsten electrode folder reaches the adjusting rod that compresses that is connected with tungsten electrode folder rear end, and described body of a gun outer wall is provided with circuitron, protective gas air inlet, outside water inlet pipe and outside return pipe,
Described holder comprises holder body, leading section and connecting portion, and described tungsten electrode folder front end is resisted against the anterior taper hole of the through hole place in the described holder; The protection gas hood is sheathed on described holder body periphery; Described cooling tube cylinder rear and front end all seals, and front end sleeve is connected to described holder connecting portion;
Form cooling-water duct between described insulating bushing and the described cooling tube cylinder;
The through hole of described cooling tube cylinder, described holder and the described ring-type air chamber that forms between adjusting rod, the described tungsten electrode folder as the protective gas passage that compresses; offer the gas distributing hole that is communicated with described ring-type air chamber and described protection gas hood internal cavity on the described holder, described gas distributing hole along described holder circumferentially evenly distribution and with axially be an acute angle setting.
A kind of cooling means of TIG welding; comprise Butt welding gun rifle body, tungsten electrode and the cooling of parts on every side; the described welding gun body of a gun is by the water quench in the rifle body cooling-water duct; described tungsten electrode and the cooling of parts are on every side cooled off by the protective gas in the rifle body protective gas passage; described protective gas is the tungsten electrode of cooling rifle head earlier; the protective gas that temperature rises is admitted to the welding assembly commissure, and butt welded seam is protected in welding process.
Compare with former welding gun, the beneficial effect of welding gun of the present invention is:
Cooling water is taked to need not to use sealing ring in body of a gun sealing cooling, and cooling water can not sewed, and has guaranteed welding quality, has improved welding gun service life.
Filled the space of rifle head by the protective gas that the gas distributing hole on the holder sprays, can play cooling tungsten electrode and the effect of parts on every side with the protection gas hood.
The protection gas hood adopts pottery, and at high temperature not yielding and scaling loss has improved the welding gun life-span.
This welding gun is simple in structure, and it is convenient to change and regulate the tungsten electrode rod, and maintenance cost has tangible reduction than former welding gun.Because of parts are few, easy-maintaining and whole rifle are changed, and production efficiency is greatly improved.
This welding gun can carry 500A, even the electric current of 700A-900A, is applicable to the Type of Welding of the directly molten mother metal of TIG weldering.The diameter of bore of variable tungsten electrode folder can press from both sides the tungsten electrode rod of ￠ 1.6mm-￠ 6.4mm, adapts to the requirement of different welding currents.
Compared with prior art, the beneficial effect of cooling means of the present invention is:
Protective gas is used for cooling off the parts on every side of tungsten electrode and tungsten electrode on the one hand by the low-temperature protection gas of holder gas distributing hole ejection; on the other hand; send into the welding assembly commissure by gas shield cover mouth; butt welded seam protection in welding process; cooling water and protective gas have played the inaccessiable cooling effect of prior art separately thus; be to utilize thermograde, realized stable cooling.Especially in the winter time under the Han Leng environment, the protective gas of low temperature, the cooling tungsten electrode and around in the process of parts, its temperature has obtained suitable lifting, more helps the protection of butt welded seam in welding process.
Description of drawings
Fig. 1 is the section of structure of prior art TIG weldering welding gun;
Fig. 2 is the surface structure schematic diagram of TIG weldering welding gun of the present invention;
Fig. 3 is the structure cutaway view of Fig. 2 along the A-A direction.
The specific embodiment
The invention will be further described below in conjunction with accompanying drawing and preferred embodiment.Wherein, Fig. 2 is the surface structure schematic diagram of TIG weldering welding gun of the present invention; Fig. 3 is the structure cutaway view of Fig. 2 along the A-A direction.
In this specification, the end near welding gun rifle head is a front end relatively, and the end away from welding gun rifle head is rear end or end relatively.
As shown in Figures 2 and 3, the TIG of the preferred embodiment of the present invention welds welding gun, and the rifle head comprises tungsten electrode rod 13, protection gas hood 12 and holder 5; The body of a gun comprises coaxial from outside to inside sheathed insulating bushing 3, cooling tube cylinder 2, tungsten electrode folder 1 and compresses adjusting rod 7, holder 5 comprises and is columned holder body 52, leading section 51 and connecting portion 53, the diameter of holder body 52 is greater than the diameter of leading section 51 and connecting portion 53, and tungsten electrode folder 1 is resisted against the anterior conical bore of the through hole place in the holder 5; Tungsten electrode folder 1 is resisted against the anterior taper hole of through hole place in the holder 5 by front end with its taper seat structure of coincideing, such matching relationship, and making between tungsten electrode folder 1 and the holder 5 has had good sealing property, and is easy to realize the adjusting to the tungsten electrode folder.
Cooling tube cylinder 2 one ends are socketed on holder connecting portion 53 by thread seal, its other end is by being threadedly connected to the connecting portion 71 that compresses adjusting rod 7 ends that is arranged in wherein, at connecting portion 71 and compress between the adjusting rod afterbody securing member 73 and also increase its sealing properties by sealing ring 72.
Insulating bushing 3 is socketed on cooling tube cylinder 2 peripheries, forms cooling-water duct between itself and the cooling tube cylinder 2; The cooling water of welding gun of the present invention circulates in cooling-water duct;
The protective gas passage of welding gun of the present invention; comprise the cavity in the protection gas hood 12; and cooling tube cylinder 2, holder 5 hollow spaces and compress the ring-type air chamber that forms between adjusting rod 7, the tungsten electrode folder 1; also comprise the connection ring-type air chamber offered on the holder 5 and the gas distributing hole 6 of cavity; gas distributing hole 6 along holder 5 circumferentially evenly distribute and with axially be a miter angle; the number of gas distributing hole is preferably 6,8.
As shown in Figure 2, insulating bushing 3 outer walls are provided with the backwater that outside return pipe and circuitron is integrated and circuitron 18, the air inlet 17 of protective gas, the outside water inlet pipe 16 of cooling water.
The welding gun of the present invention and the cooling-water duct of cooling means of the present invention, comprise intake tunnel 4, backwater channel 10 and advance backwater channel 11, form intake tunnel 4 and backwater channel 10 between cooling tube cylinder 2 and the insulating bushing 3 vertically respectively, what the forward end seal of this intake tunnel 4 and backwater channel 10 was communicated in annular advances backwater channel 11, advances backwater channel 11 and is set around holder connecting portion 53 peripheries; Advance backwater channel 11 can determine according to actual needs required around the number of turns.And two rear ends of this intake tunnel 4 and backwater channel 10 respectively by semicircle shape first radially limbers 8 with second radially limbers 9 be connected with outside return pipe 18 with outside water inlet pipe 16.
Welding gun of the present invention, tungsten electrode folder 1 is the pipe shape, tungsten electrode presss from both sides 1 first end and inserts and be resisted against diameter the compressing in the adjusting rod 7 greater than tungsten electrode folder 1 that is similarly the pipe shape, tungsten electrode presss from both sides 1 second end and has the otch that extends certain-length to first end, otch axially evenly distributes at tungsten electrode folder 1, the quantity of otch is preferably 3,4, and the diameter of bore of tungsten electrode folder 1 can compress adjusting rod and regulates by tightening or loosening; Regulate, can press from both sides diameter is the tungsten electrode rod of 1.6-6.4mm.Tightening when compressing adjusting rod 7, under the drive that compresses adjusting rod 7, the front end that has otch of tungsten electrode folder 1 is drawn close to the center, and the diameter of bore of tungsten electrode folder 1 is diminished.
Welding gun of the present invention, protection gas hood 12 is a ceramic structure, at high temperature not yielding and scaling loss has improved the welding gun life-span.Tungsten electrode folder 1, compress adjusting rod 7, holder 5 and cooling tube cylinder 2 and be chalocopyrite structure.
The cooling means of the TIG welding of the embodiment of the invention; comprise Butt welding gun rifle body, tungsten electrode and the cooling of parts on every side; the cooling of the welding gun body of a gun is by the water quench in the cooling-water duct of welding gun of the present invention; tungsten electrode and on every side parts by the cooling of the protective gas in the protective gas passage of the welding gun of the embodiment of the invention; protective gas is the tungsten electrode of cooling rifle head earlier; the protective gas that temperature rises is admitted to the welding assembly commissure, and butt welded seam is protected in welding process.The gas flow of protective gas and flow velocity can be by the hand valve regulation that is provided with on the pipeline.Protective gas sprays from gas distributing hole 6, while cooling protection gas hood 12 in the process of protected gas hood 12 refractions.
Welding gun of the present invention and welding cooling means, cooling water adopts closed cycle, as shown in Figure 3, circulate in the enclosed cavity of cooling water between welding gun cooling tube cylinder and insulating bushing 3, and this axial intake tunnel and axially backwater channel two rear ends respectively with this body of a gun on the outside water inlet pipe that is provided with is connected with outside return pipe, thereby realize that recirculated water cools off the purpose of rifle body.The line segment of band arrow is represented the recirculated water direction that flows.
By cooling tube cylinder 2 and compress adjusting rod 7 and tungsten electrode folder 1 between form a ring-type air chamber; protective gas enters the ring-type air chamber from air admission hole; press the gas flow ejection of being regulated by holder 5 from gas distributing hole 6 again, the protective gas of ejection can cool off tungsten electrode and protection gas hood and other parts simultaneously.The protection gas hood adopts ceramic, and not only cooling is rapid, and not yielding and scaling loss under the high temperature.This kind structure can improve the service life of welding quality and welding gun greatly, reduces production costs, and enhances productivity.
Above-described only is preferable possible embodiments of the present invention; described embodiment is not in order to limit scope of patent protection of the present invention; therefore the equivalent structure done of every utilization specification of the present invention and accompanying drawing content changes, and in like manner all should be included in protection scope of the present invention.
Claims (10)
1. a TIG weldering welding gun comprises the rifle head and the body of a gun, and described rifle head comprises tungsten electrode, protection gas hood and holder; The described body of a gun comprises that coaxial from outside to inside sheathed insulating bushing, cooling tube cylinder, tungsten electrode folder reaches the adjusting rod that compresses that is connected with tungsten electrode folder rear end; described body of a gun outer wall is provided with circuitron, protective gas air inlet, outside water inlet pipe and outside return pipe, it is characterized in that:
Described holder comprises holder body, leading section and connecting portion, and described tungsten electrode folder front end is resisted against the anterior taper hole of the through hole place in the described holder; The protection gas hood is sheathed on described holder body periphery; Described cooling tube cylinder rear and front end all seals, and front end sleeve is connected to described holder connecting portion;
Form cooling-water duct between described insulating bushing and the described cooling tube cylinder;
The through hole of described cooling tube cylinder, described holder and the described ring-type air chamber that forms between adjusting rod, the described tungsten electrode folder as the protective gas passage that compresses; offer the gas distributing hole that is communicated with described ring-type air chamber and described protection gas hood internal cavity on the described holder, described gas distributing hole along described holder circumferentially evenly distribution and with axially be an acute angle setting.
2. welding gun as claimed in claim 1, it is characterized in that: form intake tunnel and backwater channel between described cooling tube cylinder and the described insulating bushing vertically respectively, what the forward end seal of this intake tunnel and backwater channel was communicated in annular advances backwater channel, describedly advances backwater channel and is set around described holder connecting portion periphery; And the rear end of this intake tunnel and backwater channel respectively by first radially the limbers with second radially the limbers be connected with described outside return pipe with described outside water inlet pipe.
3. welding gun as claimed in claim 1; it is characterized in that: described holder body, leading section and connecting portion are cylindric; the diameter of described holder body is greater than the diameter of described leading section, described connecting portion, and described holder body is with described cooling tube cylinder with described protection gas hood, described connecting portion and is threaded.
4. welding gun as claimed in claim 1 is characterized in that: described acute angle is 45 degree, and described gas distributing hole has six.
5. welding gun as claimed in claim 1, it is characterized in that: described tungsten electrode folder is the pipe shape, described tungsten electrode folder rear end has the otch that forward end is extended certain-length, and described otch presss from both sides axially at described tungsten electrode and evenly distributes, and described tungsten electrode folder front end face is the conical surface that matches with described taper hole; Described tungsten electrode folder rear end is inserted and is resisted against described compressing in the adjusting rod, and described cooling tube cylinder rear end is threadedly connected to the described adjusting rod end that compresses; The diameter of bore of described tungsten electrode folder can be regulated by the described adjusting rod that compresses.
6. welding gun as claimed in claim 1 is characterized in that: described protection gas hood is a ceramic structure.
7. welding gun as claimed in claim 5 is characterized in that: described tungsten electrode folder can press from both sides the tungsten electrode rod that diameter is 1.6-6.4mm.
8. cooling means of using the TIG welding of the described TIG of claim 1 weldering welding gun; comprise Butt welding gun rifle body, tungsten electrode and the cooling of parts on every side; it is characterized in that; the described welding gun body of a gun is by the water quench in the rifle body cooling-water duct; described tungsten electrode and the cooling of parts are on every side cooled off by the protective gas in the rifle body protective gas passage; described protective gas is the tungsten electrode of cooling rifle head earlier, and the protective gas that temperature rises is admitted to the welding assembly commissure, and butt welded seam is protected in welding process.
9. cooling means as claimed in claim 8 is characterized in that: the gas flow of described protective gas and flow velocity can be regulated.
10. cooling means as claimed in claim 9 is characterized in that: described protective gas sprays from gas distributing hole, cools off described protection gas hood simultaneously in the process of protected gas hood refraction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007101470875A CN101380690B (en) | 2007-09-05 | 2007-09-05 | TIG welding gun and welding cooling method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007101470875A CN101380690B (en) | 2007-09-05 | 2007-09-05 | TIG welding gun and welding cooling method |
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| Publication Number | Publication Date |
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| CN101380690A CN101380690A (en) | 2009-03-11 |
| CN101380690B true CN101380690B (en) | 2011-04-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2007101470875A Active CN101380690B (en) | 2007-09-05 | 2007-09-05 | TIG welding gun and welding cooling method |
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| CN (1) | CN101380690B (en) |
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| CN102009258A (en) * | 2010-11-29 | 2011-04-13 | 苏州市南方欣达双金属材料有限公司 | Water-cooled welding gun |
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| CN105312735A (en) * | 2014-07-31 | 2016-02-10 | 张建生 | Air-cooling argon arc welding gun |
| CN105364277B (en) * | 2014-08-06 | 2017-09-26 | 常州靓宇焊割有限公司 | Split type argon-arc welding gun electrode holder |
| CN106735786B (en) * | 2017-01-23 | 2022-10-14 | 广东福维德焊接股份有限公司 | Integration lockhole effect TIG deep penetration welding welder |
| CN111618402B (en) * | 2020-05-30 | 2021-12-07 | 山东大学 | Thick plate narrow gap argon tungsten-arc welding process method |
| CN114777844B (en) * | 2022-04-28 | 2024-06-25 | 陈松涛 | Fixed bed gasifier detection device and fixed bed gasifier detection method |
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| US4667083A (en) * | 1986-02-14 | 1987-05-19 | Westinghouse Electric Corp. | Torch for preheating a continuously fed welding wire |
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| CN101380690A (en) | 2009-03-11 |
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Effective date of registration: 20170904 Address after: 215434 Taicang economic and Technological Development Zone, Jiangsu Province, No. 99 Binjiang Avenue Co-patentee after: CHINA INTERNATIONAL MARINE CONTAINERS (GROUP) Ltd. Patentee after: TAICANG CIMC REEFER LOGISTICS EQUIPMENT Co.,Ltd. Co-patentee after: CIMC CONTAINERS HOLDING Co.,Ltd. Address before: 201908 Baoshan District, Shanghai, Shanghai Road, No. 6886-6888 Co-patentee before: CHINA INTERNATIONAL MARINE CONTAINERS (GROUP) Ltd. Patentee before: SHANGHAI CIMC REEFER CONTAINERS Co.,Ltd. |
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Address after: No. 99 Binjiang Avenue, Taicang Port Economic and Technological Development Zone, Jiangsu Province Patentee after: TAICANG CIMC REEFER LOGISTICS EQUIPMENT Co.,Ltd. Country or region after: China Patentee after: CHINA INTERNATIONAL MARINE CONTAINERS (GROUP) Ltd. Patentee after: CIMC Container (Group) Co.,Ltd. Address before: No. 99 Binjiang Avenue, Taicang Port Economic and Technological Development Zone, Jiangsu Province, China 215434 Patentee before: TAICANG CIMC REEFER LOGISTICS EQUIPMENT Co.,Ltd. Country or region before: China Patentee before: CHINA INTERNATIONAL MARINE CONTAINERS (GROUP) Ltd. Patentee before: CIMC CONTAINERS HOLDING Co.,Ltd. |