CN2234841Y - Narrow gap consumable-electrode argon arc welding gun - Google Patents
Narrow gap consumable-electrode argon arc welding gun Download PDFInfo
- Publication number
- CN2234841Y CN2234841Y CN 95245113 CN95245113U CN2234841Y CN 2234841 Y CN2234841 Y CN 2234841Y CN 95245113 CN95245113 CN 95245113 CN 95245113 U CN95245113 U CN 95245113U CN 2234841 Y CN2234841 Y CN 2234841Y
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- CN
- China
- Prior art keywords
- welding gun
- arc welding
- electrode argon
- argon arc
- nozzle
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- Expired - Fee Related
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Abstract
The utility model discloses the elliptical open type nozzle welding gun of the narrow gap consumable-electrode argon arc welding, which solves the defects of the existing narrow gap consumable-electrode argon arc welding gun that the structure is complex, the matching device is complex, and the usage and the maintenance are difficult. The elliptical open type nozzle welding gun of the narrow gap consumable-electrode argon arc welding is composed of a cold water collecting pipe, a bar-typed and flat-shaped conductive rod which is integrated with a guide wire pipe, an elliptical open-typed internal nozzle, and a cold water-typed external protective cover. The internal nozzle makes two elliptical curved surfaces opened in the short shaft direction; two curved surfaces can become the flow guiding sheet with feet in the long shaft direction, and a flow guiding cavity is formed with the two side surfaces of the narrow groove. The elliptical open type nozzle welding gun of the narrow gap consumable-electrode argon arc welding can effectively ensure the protection of the internal gas on the deep groove and the stability of the electric arc; the lifting mechanism can be simplified through making use of the feet of the flow guiding sheet; the protective gas can directly reach to the external protective cover from the internal nozzle, and the gas circuit system can be simplified. The elliptical open type nozzle welding gun of the narrow gap consumable-electrode argon arc welding which is especially suitable for the welding of the thick-wall pipe with a small diameter has the advantages of convenient usage and favorable performance.
Description
The utility model relates to a kind of gas-shielded welding device, is a kind of oval open type nozzle welding gun that is used for the welding of narrow clearance melting electrode argon arc specifically.
Narrow clearance melting electrode argon arc welding welding is at home and abroad progressively applied with the characteristics of its high-efficiency high-quality, at present, and the existing three major types of the welding gun that narrow clearance melting electrode argon arc welding welding is adopted:
The outlet gas part of first typical circular metal argon arc welding welding gun adopts long nozzle, makes the gas shield expanded range, because nozzle can not stretch in the narrow groove, welds so this type of welding gun generally only is applicable to the not too dark workpiece of narrow groove.
It two is a kind of main burner and side nozzle associating gas shiled welding gun, and the side nozzle of flat and conducting rod can stretch in the narrow groove.This type of welding gun can weld darker groove, but complex structure, volume are big, especially needs to dispose two cover hoisting mechanisms and a cover air-flow switching device shifter.
Its three be a kind of in outer nozzle associating gas protective welding gun, inner nozzle and conducting rod are combined into a segment, can stretch in the narrow groove.This type of welding gun volume is less, but needs configuration two cover hoisting mechanisms and a cover air-flow switching device shifter equally, is the pipe jet state at the gas outlet of inner nozzle air-flow in addition, can make the conducting rod below cause localised protection " dead band " like this, influences the gas shiled effect.
The existing narrow clearance melting electrode argon arc welding of above-mentioned three classes welding gun exists complex structure, volume is big, corollary apparatus is loaded down with trivial details, working service is difficult defective respectively, make range of application limited, especially be not suitable for the narrow clearance melting electrode argon arc welding welding of minor diameter thick-walled pipe.
For addressing the above problem, the utility model proposes the oval open type welding gun of a kind of narrow clearance melting electrode argon arc welding.
The purpose of this utility model is to realize like this.Welding gun is made up of rod-type flat conducting rod, nozzle and water-cooled outer protective cover.Wherein nozzle is oval open type inner nozzle; be about to inner nozzle and make ellipse; and it is its two faces that stretch into groove short-axis direction partly are unlimited; stay two cambered surfaces at long axis direction, and do a pair of foot, make it to become the flow deflector of a pair of band foot in the end of cambered surface; this flow deflector becomes diversion cavity with narrow groove two side; guaranteed gas shiled and arc stability in the deep groove effectively, utilized the foot of flow deflector to drive the water-cooled outer protective cover, simplified hoisting mechanism with upwards lifting of torch body.The oval outer protective cover of a water-cooled is arranged outside inner nozzle, can outside inner nozzle, slide up and down, cooperate the protection of inner nozzle, simplified welding gun structure and air-channel system with this to cap bead.For strengthening cooling effect, wire leading pipe and water cooling tube are formed a flat conducting rod, and settle an insulation air sifter between inner nozzle and conducting rod, to guarantee the reliable insulation between inner nozzle and conducting rod.
Because the utility model has adopted the form of oval open type nozzle, make simple in structure, easy to use, functional, and supporting with it hoisting mechanism and air-channel system have been simplified, be applicable to the welding of narrow clearance melting electrode argon arc, be particularly useful for the narrow clearance melting electrode argon arc welding of minor diameter thick-walled pipe.
Description of drawings:
Figure one is the front view of the structural representation of the oval open type welding gun of narrow clearance melting electrode argon arc welding.
Figure two is the side view of the structural representation of the oval open type welding gun of narrow clearance melting electrode argon arc welding.
In the enforcement:
1. wire leading pipe [1] is become a rod-type flat conducting rod with outlet pipe [2], water inlet pipe [15] by joint [7] assembly welding.And outlet pipe [2], water inlet pipe [15] place wire leading pipe [1] both sides.Blast fence [6] is welded on the both sides of outlet pipe [2] and water inlet pipe [15].
2. flat conducting rod, air inlet pipe [3] are integral with support copper coin [4] assembly welding.
3. support between copper coin [4], insulating cement plank [5], the lifting conduction connection copper billet [14] and connect with bolt.
4. insulation air sifter [12] is stuck in flat conducting rod middle part with steel rim of spring.Ignition tip [8] and copper sleeve [7] are with being threaded.
5. inner nozzle is that a major axis is 48 millimeters, and minor axis is 32 millimeters a ellipse.Two faces of short-axis direction are opened wide, and long axis direction leaves wide 8 millimeters cambered surface, becomes a pair of flow deflector [9], and with flow deflector [9] apart from the end 4 millimeters locate outwardly-bent 90 ° and become a pair of foot.Oval open type inner nozzle [13] is connected by screw with insulating cement plank [5].
6. oval water-cooled outer protective cover [11] is enclosed within oval open type inner nozzle [13] outside, between 1.5 millimeters gaps are arranged, the oval outer protective cover of water-cooled [11] can be slided up and down along oval open type inner nozzle [13].
When carrying out the welding of narrow clearance melting electrode argon arc, become the open section of flow deflector form to stretch in the narrow groove of weldment [10] oval inner nozzle [13] earlier, flow deflector [9] is formed diversion cavity [16] with weld root [10] two side.The oval outer protective cover of water-cooled [11] slides by deadweight, and its end face is attached to the weldment surface.
Protection gas enters inner nozzle [13] inner chamber by air inlet pipe [3], through entering the diversion cavity [16] that flow deflector [9] and weld root [10] two side are formed behind blast fence [6] deceleration, insulation air sifter [12] ballast, the weld zone is protected.Cooling water enters from water inlet pipe [15], and the joint of flowing through [7] is come out by outlet pipe [3], and flat conducting rod and ignition tip [8] are directly cooled off.Welding wire is sent into the weld zone from wire leading pipe [1], ignition tip [8].The source of welding current is by promoting conduction contiguous block [14], support copper coin [4], flat conducting rod, ignition tip [8] access weld zone, striking welding then.
Behind the intact one deck welding bead of every weldering; the welding machine hoisting mechanism drives and carries 6 millimeters and water-cooled outer protective cover [11] relies on deadweight to glide along inner nozzle [13] outer surface on the torch body (comprising gripper shoe [4], insulating cement plank [5], flat conducting rod, oval open type inner nozzle [13]) by promoting conduction contiguous block [14]; its end face still keeps being attached to the weldment surface, cooperates inner nozzle gas shiled effect.When being welded to cap bead, the biped of inner nozzle flow deflector [9] is colluding the end face of water-cooled outer protective cover [11], makes outer protective cover along with torch body upwards promotes together, to simplify hoisting mechanism.Protection gas arrives outer protective cover [11] by inner nozzle [13], and cap bead is carried out gas shiled, reaches the order ground of simplifying the outer shield air supply system.
Claims (5)
1. a narrow clearance melting electrode argon-arc welding gun is made up of conducting rod, nozzle, outer protective cover, it is characterized in that nozzle is oval inner nozzle [13]; Conducting rod is the rod-type flat, is to be formed by joint [7] assembly welding by wire leading pipe [1], outlet pipe [2], water inlet pipe [15].
2. narrow clearance melting electrode argon-arc welding gun according to claim 1 is characterized in that the part that inner nozzle [13] is stretched into welding groove [10] opens wide in two cambered surfaces of oval short-axis direction, and two cambered surfaces of long axis direction are the flow deflector [9] of a pair of band foot.
3. narrow clearance melting electrode argon-arc welding gun according to claim 1 is characterized in that the outlet pipe [2] of rod-type flat conducting rod, water inlet pipe [15] place wire leading pipe [1] both sides by copper sleeve [7].
4. narrow clearance melting electrode argon-arc welding gun according to claim 1, the water-cooled outer protective cover [11] that it is characterized in that this welding gun is for oval.
5. narrow clearance melting electrode argon-arc welding gun according to claim 1 is characterized in that having an insulation air sifter [12] on the flat conducting rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95245113 CN2234841Y (en) | 1995-07-13 | 1995-07-13 | Narrow gap consumable-electrode argon arc welding gun |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95245113 CN2234841Y (en) | 1995-07-13 | 1995-07-13 | Narrow gap consumable-electrode argon arc welding gun |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2234841Y true CN2234841Y (en) | 1996-09-11 |
Family
ID=33885337
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 95245113 Expired - Fee Related CN2234841Y (en) | 1995-07-13 | 1995-07-13 | Narrow gap consumable-electrode argon arc welding gun |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2234841Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1308111C (en) * | 2004-10-21 | 2007-04-04 | 武汉大学 | Automatic welding-torch for ultra narrow gap and consumable electrode under gas coverage, and preparation method |
| EP2308630A3 (en) * | 2009-10-12 | 2011-04-20 | J.Ray McDermott, S.A. | Narrow groove gas metal arc welding torch |
| CN104923895A (en) * | 2015-06-26 | 2015-09-23 | 武汉纳瑞格智能设备有限公司 | Semi-automatic ultra-narrow gap MAG/MIG welding welding gun |
| CN105957689A (en) * | 2016-06-02 | 2016-09-21 | 西北工业大学 | Pre-weld demagnetization method for narrow gap pulse fusion welding of petroleum drill collar |
| CN107335902A (en) * | 2017-06-20 | 2017-11-10 | 西北工业大学 | Weldering device for oil kelly bar narrow gap automatic welding |
| CN109365968A (en) * | 2018-11-08 | 2019-02-22 | 九江海天设备制造有限公司 | A kind of gas metal-arc welding water-cooled nozzle |
| CN114226929A (en) * | 2021-12-21 | 2022-03-25 | 武汉纳瑞格智能设备有限公司 | High-efficiency cooling plate type narrow-gap MAG/MIG welding gun |
-
1995
- 1995-07-13 CN CN 95245113 patent/CN2234841Y/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1308111C (en) * | 2004-10-21 | 2007-04-04 | 武汉大学 | Automatic welding-torch for ultra narrow gap and consumable electrode under gas coverage, and preparation method |
| EP2308630A3 (en) * | 2009-10-12 | 2011-04-20 | J.Ray McDermott, S.A. | Narrow groove gas metal arc welding torch |
| CN102069279A (en) * | 2009-10-12 | 2011-05-25 | J.雷.麦克德莫特股份有限公司 | Narrow groove GMAW torch |
| CN104923895A (en) * | 2015-06-26 | 2015-09-23 | 武汉纳瑞格智能设备有限公司 | Semi-automatic ultra-narrow gap MAG/MIG welding welding gun |
| CN104923895B (en) * | 2015-06-26 | 2018-01-09 | 武汉纳瑞格智能设备有限公司 | A kind of semi-automatic ultra-narrow gap MAG/MIG welderings welding gun |
| CN105957689A (en) * | 2016-06-02 | 2016-09-21 | 西北工业大学 | Pre-weld demagnetization method for narrow gap pulse fusion welding of petroleum drill collar |
| CN107335902A (en) * | 2017-06-20 | 2017-11-10 | 西北工业大学 | Weldering device for oil kelly bar narrow gap automatic welding |
| CN109365968A (en) * | 2018-11-08 | 2019-02-22 | 九江海天设备制造有限公司 | A kind of gas metal-arc welding water-cooled nozzle |
| CN114226929A (en) * | 2021-12-21 | 2022-03-25 | 武汉纳瑞格智能设备有限公司 | High-efficiency cooling plate type narrow-gap MAG/MIG welding gun |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |