CN103350277A - Combination electrode for welding gun for welding vehicle door galvanized sheet - Google Patents
Combination electrode for welding gun for welding vehicle door galvanized sheet Download PDFInfo
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- CN103350277A CN103350277A CN2013103086404A CN201310308640A CN103350277A CN 103350277 A CN103350277 A CN 103350277A CN 2013103086404 A CN2013103086404 A CN 2013103086404A CN 201310308640 A CN201310308640 A CN 201310308640A CN 103350277 A CN103350277 A CN 103350277A
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Abstract
The invention discloses a combination electrode for a welding gun for welding a vehicle door galvanized sheet, and relates to a combination electrode. The combination electrode for the welding gun for welding the vehicle door galvanized sheet solves the problems that welding performance is poor and unsoldering can happen easily in the spot welding process of an existing galvanized steel sheet. The combination electrode comprises a chromium, zirconium and copper electrode cap (1). A cooling hole (3) is formed in the upper portion of the chromium, zirconium and copper electrode cap (1) along the axis of the chromium, zirconium and copper electrode cap, and a through hole (4) is formed in the lower portion of the chromium, zirconium and copper electrode cap (1). The through hole (4) is a taper hole which expands increasingly from top to bottom, and the through hole (4) is communicated with the cooling hole (3). The combination electrode further comprises a tungsten electrode (2), wherein the outer side wall of the tungsten electrode (2) expands increasingly from top to bottom, the tungsten electrode (2) is arranged inside the through hole (4), and the outer side wall of the tungsten electrode (2) is in interference fit with the inner side wall of the through hole (4). The combination electrode is matched with the welding gun in use and is used for welding the vehicle door galvanized sheet.
Description
Technical field
The present invention relates to a kind of welding gun combination electrode, be specifically related to a kind of welding gun specific complex electrode that welds the car door galvanized sheet.
Background technology
Over past ten years, the Domestic Automotive Industry development is rapid, and thing followed car body corrosion protection problem also becomes increasingly conspicuous, show according to relevant investigation, corrosion pit namely appearred in 1 year in general domestic new car operation, namely occurred corroding penetrating in three to four years, and a whole nation year maintenance cost reaches billions of yuans for this reason.Therefore, in order to improve the anti-corrosion property energy of car body service life and enhancing car body materials, the plating zinc on surface steel plate is widely used.
Although the galvanized steel plain sheet that car door uses has preferably corrosion resistance, but during car body was at home and abroad made, what adopt in a large number all was resistance spot welding method, compares with the non-coating steel plate, exist welding performance poor in the pinpoint welding procedure of existing galvanized steel plain sheet, the problem of easily snapping.
Summary of the invention
The objective of the invention is in order to exist welding performance poor in the pinpoint welding procedure that solves existing galvanized steel plain sheet the problem of easily snapping.And then provide a kind of welding gun specific complex electrode that welds the car door galvanized sheet.
Technical scheme of the present invention is: the welding gun specific complex electrode of welding car door galvanized sheet comprises chromium zirconium copper electrode cap, the top of chromium zirconium copper electrode cap is provided with Cooling Holes along its axis, the bottom of chromium zirconium copper electrode cap is provided with through hole, described through hole is the taper hole of flaring from top to bottom, through hole is communicated with Cooling Holes, the aperture, upper end of through hole is less than the aperture of Cooling Holes, described combination electrode also comprises tungsten electrode, the lateral wall of tungsten electrode is flaring from top to bottom, tungsten electrode is arranged in the through hole, and interference fit between the madial wall of the lateral wall of tungsten electrode and through hole.
The present invention compared with prior art has following effect:
1. when the common electrical polar cap welds, because the existence of low melting point coating, the current density of weld zone is reduced, and the distribution that makes current field is not quietly, further promoted again welding tip face copper and coated metal to form the alloys such as solid solution and intermetallic compound if increase electric current, accelerated the destruction of electrode pick-up and coating, low-melting coated metal can make molten nuclear crack in crystallization process and pore simultaneously.Therefore the electrode finishing is frequent, welds relatively poor.
The present invention is when using welding gun welding car door galvanized sheet, high owing to tungsten electrode hardness in the pinpoint welding procedure, be not easy to make electrode tip softening transform to occur, and do not produce chemical reaction between tungsten electrode and the galvanized sheet, thereby improve welding performance, be difficult for snapping, avoid adhesion and welding current density not to wait quietly the generation of phenomenon.
2. production efficiency of the present invention is doubled, and 100 car door galvanized sheets of originally every welding just need to change 10 sub-electrodes, and 100 car door galvanized sheets of present every welding only need to change 1 sub-electrode, has reduced loss and the welding production cost of welding equipment.
3. the present invention is simple in structure, manufactures easily, and is with low cost.
Description of drawings
Fig. 1 is the structural representation of chromium zirconium copper electrode cap of the present invention; Fig. 2 is the structural representation of tungsten electrode; Fig. 3 is overall structure schematic diagram of the present invention.
The specific embodiment
The specific embodiment one: present embodiment is described in conjunction with Fig. 1-Fig. 3, the welding gun specific complex electrode of the welding car door galvanized sheet of present embodiment comprises chromium zirconium copper electrode cap 1, the top of chromium zirconium copper electrode cap 1 is provided with Cooling Holes 3 along its axis, the bottom of chromium zirconium copper electrode cap 1 is provided with through hole 4, described through hole 4 is the taper hole of flaring from top to bottom, through hole 4 is communicated with Cooling Holes 3, the aperture, upper end of through hole 4 is less than the aperture of Cooling Holes 3, described combination electrode also comprises tungsten electrode 2, the lateral wall of tungsten electrode 2 is flaring from top to bottom, tungsten electrode 2 is arranged in the through hole 4, and interference fit between the madial wall of the lateral wall of tungsten electrode 2 and through hole 4.
Interference fit between the lateral wall of the tungsten electrode 2 of present embodiment and the madial wall of through hole 4.Can guarantee effectively that tungsten electrode 2 when bearing the cooling of Cooling Holes 3 interior current, can not come off.
The specific embodiment two: in conjunction with Fig. 1-Fig. 3 present embodiment is described, the lateral wall tapering of the tungsten electrode 2 of present embodiment is 3 °.So arrange, be convenient to chromium zirconium copper electrode cap 1 on through hole 4 cooperatively interact.Other composition is identical with the specific embodiment one with annexation.
The specific embodiment three: in conjunction with Fig. 1-Fig. 3 present embodiment is described, the smallest end diameter of the tungsten electrode 2 of present embodiment is 7mm.So arrange, be convenient to chromium zirconium copper electrode cap 1 on through hole 4 cooperatively interact.。Other composition is identical with the specific embodiment two with annexation.
The specific embodiment four: in conjunction with Fig. 1-Fig. 3 present embodiment is described, the height H of the tungsten electrode 2 of present embodiment is 7mm.So arrange, be convenient to chromium zirconium copper electrode cap 1 on through hole 4 cooperatively interact.Other composition is identical with the specific embodiment three with annexation.
The specific embodiment five: in conjunction with Fig. 1-Fig. 3 present embodiment is described, the lateral wall of the chromium zirconium copper electrode cap 1 of present embodiment is flaring from top to bottom, and the lateral wall tapering of chromium zirconium copper electrode cap 1 is 3 °-5 °.So arrange, being convenient to cooperatively interact with the termination of welding gun is connected.Other composition is identical with the specific embodiment four with annexation.
The specific embodiment six: in conjunction with Fig. 1-Fig. 3 present embodiment is described, the height of the Cooling Holes 3 of the chromium zirconium copper electrode cap 1 of present embodiment is 50mm.So arrange, being convenient to cooperatively interact with the termination of welding gun is connected.Other composition and annexation and the specific embodiment one, two, three, four or five identical.
The present invention in use, in conjunction with Fig. 3 explanation, chromium zirconium copper electrode cap 1 is installed on the termination of welding gun, during welding, weld by tungsten electrode 2, the clamping force that Cooling Holes 3 interior water flowing cool cycles, tungsten electrode 2 make progress when being subjected to simultaneously with the friction tight frictional force of electrode cap and welding effectively keeps tungsten electrode 2 can not come off.
Although the present invention discloses as above with preferred embodiment; yet be not limit of the present invention; those skilled in the art can also do other variations in spirit of the present invention; and be applied in the NM field of the present invention; certainly, these variations of doing according to spirit of the present invention all should be included in the present invention's scope required for protection.
Claims (6)
1. welding gun specific complex electrode that welds the car door galvanized sheet, it comprises chromium zirconium copper electrode cap (1), the top of chromium zirconium copper electrode cap (1) is provided with Cooling Holes (3) along its axis, the bottom of chromium zirconium copper electrode cap (1) is provided with through hole (4), described through hole (4) is the taper hole of flaring from top to bottom, through hole (4) is communicated with Cooling Holes (3), the aperture, upper end of through hole (4) is less than the aperture of Cooling Holes (3), it is characterized in that: described combination electrode also comprises tungsten electrode (2), the lateral wall of tungsten electrode (2) is flaring from top to bottom, tungsten electrode (2) is arranged in the through hole (4), and interference fit between the madial wall of the lateral wall of tungsten electrode (2) and through hole (4).
2. the welding gun specific complex electrode of described welding car door galvanized sheet according to claim 1, it is characterized in that: the lateral wall tapering of described tungsten electrode (2) is 3 °.
3. the welding gun specific complex electrode of described welding car door galvanized sheet according to claim 2, it is characterized in that: the smallest end diameter of described tungsten electrode (2) is 7mm.
4. the welding gun specific complex electrode of described welding car door galvanized sheet according to claim 3, it is characterized in that: the height H of described tungsten electrode (2) is 7mm.
5. the welding gun specific complex electrode of described welding car door galvanized sheet according to claim 4, it is characterized in that: the lateral wall of described chromium zirconium copper electrode cap (1) is flaring from top to bottom, and the lateral wall tapering of chromium zirconium copper electrode cap (1) is 3 °-5 °.
6. according to claim 1, the welding gun specific complex electrode of 2,3,4 or 5 described welding car door galvanized sheets, it is characterized in that: the height of the Cooling Holes (3) of described chromium zirconium copper electrode cap (1) is 50mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013103086404A CN103350277A (en) | 2013-07-22 | 2013-07-22 | Combination electrode for welding gun for welding vehicle door galvanized sheet |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013103086404A CN103350277A (en) | 2013-07-22 | 2013-07-22 | Combination electrode for welding gun for welding vehicle door galvanized sheet |
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| CN103350277A true CN103350277A (en) | 2013-10-16 |
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| CN2013103086404A Pending CN103350277A (en) | 2013-07-22 | 2013-07-22 | Combination electrode for welding gun for welding vehicle door galvanized sheet |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107617814A (en) * | 2016-07-13 | 2018-01-23 | 上海云飞工贸发展有限公司 | A kind of electrode suitable for clad steel sheet electric resistance welding |
| CN115138956A (en) * | 2022-07-20 | 2022-10-04 | 湖北超卓航空科技股份有限公司 | Steel core composite electrode for high-elasticity alloy and spot welding process thereof |
Citations (10)
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| JPS55109584A (en) * | 1979-02-15 | 1980-08-23 | Fuji Heavy Ind Ltd | Electrode for spot welding |
| JPH06226466A (en) * | 1993-02-05 | 1994-08-16 | Natsume:Kk | Tip member for electrode tip of spot welding machine and its manufacture |
| US20050029234A1 (en) * | 2003-08-04 | 2005-02-10 | Feng Lu | Resistance spot welding electrode |
| WO2006004073A1 (en) * | 2004-06-30 | 2006-01-12 | Nisshin Steel Co., Ltd. | Electrode for spot welding |
| US20060124697A1 (en) * | 2004-12-09 | 2006-06-15 | Robin Stevenson | Phase change resistance spot welding tip |
| JP2007237209A (en) * | 2006-03-07 | 2007-09-20 | Nisshin Steel Co Ltd | Resistance welding method |
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| US20100252535A1 (en) * | 2009-04-06 | 2010-10-07 | Ascend Enterprises, Llc | Contact tip for an electrode of a resistance welder |
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| CN203343602U (en) * | 2013-07-22 | 2013-12-18 | 哈尔滨凌云汽车零部件有限公司 | Composite electrode special for welding gun for welding car door galvanized plate |
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2013
- 2013-07-22 CN CN2013103086404A patent/CN103350277A/en active Pending
Patent Citations (10)
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|---|---|---|---|---|
| JPS55109584A (en) * | 1979-02-15 | 1980-08-23 | Fuji Heavy Ind Ltd | Electrode for spot welding |
| JPH06226466A (en) * | 1993-02-05 | 1994-08-16 | Natsume:Kk | Tip member for electrode tip of spot welding machine and its manufacture |
| US20050029234A1 (en) * | 2003-08-04 | 2005-02-10 | Feng Lu | Resistance spot welding electrode |
| WO2006004073A1 (en) * | 2004-06-30 | 2006-01-12 | Nisshin Steel Co., Ltd. | Electrode for spot welding |
| US20060124697A1 (en) * | 2004-12-09 | 2006-06-15 | Robin Stevenson | Phase change resistance spot welding tip |
| JP2007237209A (en) * | 2006-03-07 | 2007-09-20 | Nisshin Steel Co Ltd | Resistance welding method |
| CN201264143Y (en) * | 2008-08-26 | 2009-07-01 | 比亚迪股份有限公司 | Spot-welding electrode |
| CN102202830A (en) * | 2008-10-06 | 2011-09-28 | 霍尔茨豪厄有限责任两合公司 | Resistance welding electrode |
| US20100252535A1 (en) * | 2009-04-06 | 2010-10-07 | Ascend Enterprises, Llc | Contact tip for an electrode of a resistance welder |
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| 滨崎正信: "《搭接电阻焊》", 31 August 1977, 国防工业出版社 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107617814A (en) * | 2016-07-13 | 2018-01-23 | 上海云飞工贸发展有限公司 | A kind of electrode suitable for clad steel sheet electric resistance welding |
| CN115138956A (en) * | 2022-07-20 | 2022-10-04 | 湖北超卓航空科技股份有限公司 | Steel core composite electrode for high-elasticity alloy and spot welding process thereof |
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Application publication date: 20131016 |