CN1126128A - Arc torch or arc cutting torch and pole clamper of same - Google Patents
Arc torch or arc cutting torch and pole clamper of same Download PDFInfo
- Publication number
- CN1126128A CN1126128A CN 94115237 CN94115237A CN1126128A CN 1126128 A CN1126128 A CN 1126128A CN 94115237 CN94115237 CN 94115237 CN 94115237 A CN94115237 A CN 94115237A CN 1126128 A CN1126128 A CN 1126128A
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- torch
- electrode holder
- arc
- housing
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Abstract
The arc welding torch for welding or cutting (WIG or plasma torch, for example) has an electrode fixture in casing. In order to allocate electrode easily and reliably for current transmission between fixture and electrode, the casing has a truncated cone supporter, which is matched with fixture with corresponding contact and slide surfaces. A longitudinal force makes the fixture hold on conic supporter.
Description
The present invention relates to a kind of welding torch or arc cutting torch of arc welding, for example WIG (tungsten electrode Inert gas welding) or plasma torch comprise a welding torch body and an electrode holder that is used for clamping electrode that is installed in its inside.
The main function components of arc torch and arc cutting torch is an electrode holder, and the electric current that is used to produce electric arc is delivered to electrode through electrode holder.Electrode holder is positioned at a housing of welding torch body, and electrode is clamped on the electrode holder.In order to use the electrode of different-diameter, people have adopted removable electrode holder, and its external diameter is identical, but have different internal diameters.Electrode holder has dilatation joint and a tapering part, utilizes this tapering part electrode can be compressed.In the WIG welding torch, there is a welding torch cover to be screwed in the rear end of welding torch body, electrode then is fixed in the chuck.Be difficult in known welding torch electrode centering, because when using the welding torch of WIG type, operating personnel at first must adjust according to range estimation, the welding torch cover will be screwed on the welding torch body simultaneously.The situation that electrode is not in the air-flow center may appear in this moment, thereby is unfavorable for the even distribution of air-flow around electrode.Electrode is very fast oxidation like this, and because gas-cooled efficient is low, air-breathing generations is turbulent, causes the consumption of electrode.
The problem of this frame for movement aspect can cause welding torch body and the torch housing unstability to the electric current of electrode holder and electrodes transfer for known arc torch and arc cutting torch.For example on the WIG welding torch,,, after clamping, also can produce diverse current delivery relation although then electrode is finish grinded if changed electrode holder with same inner diameter.In addition, between electrode holder and electrode, also very high transition resistance can occur, consequently, on the material of electrode holder, produce high localized heat load, thereby the welding torch body has been caused disadvantageous heat transfer, heat may be delivered on the plastic housing of welding torch cover.
Task of the present invention is, improves arc torch recited above or arc cutting torch, and the adjustment of its electrode is simple, reliable, can realize favourable current delivery between electrode holder and electrode.
Solution of the present invention is, the housing of electrode holder has the bearing of a truncated cone shape, this bearing matches with having the electrode holder that shape contact accordingly with sliding surface, and electrode holder is in that the longitudinal force opposite with the direction of torch-tip remains on the taper bearing of housing by one on the rigging position.
Because electrode holder of the present invention remains on the taper bearing of housing by a longitudinal force opposite with the direction of torch-tip, so not only make the electrode holder can self-centering, and electrode can be adjusted automatically according to corresponding airflow state.In addition, between the housing of electrode holder and welding torch body or electrode holder, can also produce very wide contact-making surface, thereby guarantee on electrode, to realize good and reliable current delivery with very little transition resistance.Heat transfer from electrode holder to the welding torch body is limited also in addition, thereby has improved greatly the life-span of electrode holder, on WIG or plasma torch, can also improve the life-span of electrode itself.
According to first special example of the present invention, the part that is positioned at the torch-tip rear portion of its electrode holder is installed in housing, thereby improves the adjustment of electrode holder, has further proofreaied and correct the position of electrode itself.
In a kind of very favourable structure, the cylindrical part of electrode holder is installed in the housing of welding torch.
On rigging position, because electrode holder is under the longitudinal force effect opposite with the torch-tip direction, be maintained on the taper bearing of housing or welding torch body, so particularly for WIG and plasma torch, can also be in nozzle one side of welding torch be packed housing into or install on the taper bearing of housing with electrode holder, thereby simplified the assembly manipulation of welding torch greatly, shortened the set-up time.
According to the present invention, electrode holder is fixedlyed connected with the housing of screw thread and welding torch preferentially at an end relative with torch-tip, in order to simplify the assembling of electrode holder, is provided with knurled wheel at electrode holder towards an end of torch-tip.
For WIG and plasma torch, also can adopt following scheme, an end relative with torch-tip that is about to electrode holder is connected with the welding torch cover with screw thread.
According to a kind of special scheme of the present invention; electrode holder and housing have constituted a doughnut that is used for protective gas or plasma gas; this gas is positioned at contact and the sliding surface scope on the electrode holder circumference; and pass through the honeycomb duct that extends along the jet axis of welding torch, and be drawn towards the external world towards the direction of torch-tip.By combining with gas lens by the taper pressure seat of electrode holder and the passage that honeycomb duct constituted that distributes along the welding torch jet axis thereof, make protective gas realize uniform laminar flow, owing to avoided turbulent flow, thus the gas that has improved the molten bath covers situation.
Other purposes of the present invention, advantage, feature and purposes are seen two examples shown in the following drawings and explanation thereof.Wherein all are described and/or illustrated feature can constitute the solution of the present invention with any reasonable manner, are not subjected to the combination in the claims of these features or the constraint of quoting of claim.
Fig. 1 represents the longitudinal sectional view with WIG welding torch of a kind of electrode holder of the present invention.
Fig. 2 represents electrode holder shown in Figure 1.
Fig. 3 represents that another kind of the present invention has the longitudinal sectional view of the WIG welding torch of electrode holder.
Fig. 4 represents electrode holder shown in Figure 3.
The WIG welding torch that Fig. 1 represents has a welding torch body 1, and this welding torch body links together with (unillustrated) conductive cable, water inlet pipe and return pipe 15,16, air hose 23 and (unillustrated equally) pilot in the bonding pad of itself and welding torch neck 14.Welding torch body 1 has a housing 4, is used for hold electrodes anchor clamps 3, accompanies electrode 2 in electrode holder.Front end at welding torch body 1 has a torch-tip 7 or gas nozzle.For the distribution situation of the protective gas that improves torch-tip 7 inside, a gas lens 17 has been installed in example shown in Figure 1, can produce laminar airflow by these lens, thereby reach the purpose that the gas that improves the welding position covers situation.On the welding torch body 1 of the relative other end of torch-tip 7, be provided with a welding torch cover 9, it covers the electrode 2 of conduction.
In order to produce electric arc, should between electrode 2 and workpiece, apply necessary welding current, this electric current is from cable, is delivered on the electrode 2 of electrode holder 3 clampings through the conducting connecting part of welding torch body 1.
As shown in Figure 1, the housing 4 of welding torch body 1 has the overcoat 24 that is located at welding torch body 1 and the radiator 25 between the electrode holder 3 in embodiment chosen, and this radiator has a taper bearing 5, and this bearing defines the contact and the sliding surface 6 of electrode holder 3.Electrode holder 3 has a cylindrical part 8 in the rear end with respect to torch-tip 7, this part accurately is installed in housing 4 and the radiator 25.
In assembling during welding torch, electrode holder 3 is packed into from torch-tip one side in the housing 4, the distance between electrode 2 and the gas nozzle 7 is adjusted to the numerical value of regulation.Then as shown in the figure, in welding operation, installing electrodes 2 if desired, then can turn on welding torch cover 9, the internal thread 18 of this cover is screwed on the external screw thread 19 of electrode holder 3 rear ends, and electrode holder 3 is pressed on the taper bearing 5 of housing 4 and radiator 25 in its contact and sliding surface 6.This moment, the dilatation joint 13 of electrode holder 3 bounced back, and electrode 2 is clamped in electrode holder 3 or the chuck.The cylindrical guide effect of rear portion segmentation 8 in housing 4 and radiator 25 of conical seat 5 and electrode holder 3 by electrode holder 3, can realize the self-centering of electrode holder 3, make also centring of electrode 2 and air-flow, the advantage of this structure is to have realized that determine and large-area current delivery between housing 4 and electrode holder 3, because transition resistance is low, so electric current can be passed to electrode 2 fully, can improve cooling effect in addition.
As depicted in figs. 1 and 2, electrode holder 3 and housing 4 constitute a doughnut 11.This doughnut 11 is positioned on the excircle of electrode holder 3, with contact and sliding surface 6 on the honeycomb duct 12 that extends along the welding torch jet axis be communicated with, and with gas lens 17 and housing 4 between the balancing gate pit 22 that constitutes be communicated with.Can realize all even laminar flow of protective gas by the gas lens 17 that is communicated with honeycomb duct 12, cover situation thereby improved the gas on the molten bath.
In Fig. 3 and Fig. 4, provided the another kind of example of WIG welding torch, wherein had identical label, therefore explanation no longer one by one with welding torch identical functions parts illustrated in figures 1 and 2.Compare with above-mentioned example, the main distinction of Fig. 3 and welding torch shown in Figure 4 is, electrode holder 3 has external screw thread 20, and it directly is screwed on the internal thread 21 of the housing 4 of welding torch body 1 and radiator 25.In order to simplify assembling, electrode holder 3 has a knurled wheel 10 at the end regions towards torch-tip 7.Inert gas is concentric shape and enters in the welding torch body 1.
The present invention is not limited only to the WIG welding torch certainly, equally also is suitable for the contact nozzle of plasma torch, MIG welding torch or MAG welding torch and conductive electric current thereof.
Claims (9)
1, arc torch or arc cutting torch, for example WIG or plasma torch, comprise an interior electrode holder that is used for clamping electrode (2) (3) of housing (4) that is installed in welding torch body (1), it is characterized in that, housing (4) has the bearing (5) of a truncated cone shape, this bearing with have that shape contacts accordingly and the electrode holder (3) of sliding surface (6) matches, electrode holder (3) is remaining on the taper bearing of housing (4) by a longitudinal force opposite with the direction of torch-tip (7) on the rigging position.
2, arc torch as claimed in claim 1 or arc cutting torch is characterized in that, the part that is positioned at torch-tip (7) rear portion of electrode holder (3) is installed in housing (4).
3, arc torch as claimed in claim 1 or 2 or arc cutting torch is characterized in that, the circular cylinder shaped portion (8) of electrode holder (3) is installed in the housing (4) of welding torch (1).
As any one described arc torch or arc cutting torch among the claim 1 to 3, it is characterized in that 4, electrode holder (3) is in nozzle one side of welding torch (1) is packed housing (4) into or install on the taper bearing (5) of housing (4).
As any one described arc torch or arc cutting torch among the claim 1 to 4, it is characterized in that 5, electrode holder (3) is preferentially at an end relative with torch-tip (7), with the housing (4) of screw thread and welding torch (1) be connected (Fig. 3).
6, arc torch as claimed in claim 5 or arc cutting torch is characterized in that, electrode holder (3) has knurled wheel (10) at its end towards torch-tip (7).
As any one described arc torch or arc cutting torch among the claim 1 to 4, it is characterized in that 7, electrode holder (3) is at an end relative with torch-tip (7), with screw thread be connected with welding torch cover (9) (Fig. 1).
8, as any one described arc torch or arc cutting torch among the above-mentioned claim; it is characterized in that; electrode holder (3) and housing (4) have constituted a doughnut (11) that is used for protective gas or plasma gas; this gas is in the contact and sliding surface (6) scope on electrode holder (3) circumference, and the honeycomb duct (12) that extends through the jet axis along welding torch (1) is drawn towards the external world towards the direction of torch-tip (7).
9, as the electrode holder of any one described arc torch or arc cutting torch among the above-mentioned claim.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN94115237A CN1043460C (en) | 1994-09-20 | 1994-09-20 | Arc torch or arc cutting torch and pole clamper of same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN94115237A CN1043460C (en) | 1994-09-20 | 1994-09-20 | Arc torch or arc cutting torch and pole clamper of same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1126128A true CN1126128A (en) | 1996-07-10 |
| CN1043460C CN1043460C (en) | 1999-05-26 |
Family
ID=5037436
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN94115237A Expired - Lifetime CN1043460C (en) | 1994-09-20 | 1994-09-20 | Arc torch or arc cutting torch and pole clamper of same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1043460C (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102218588A (en) * | 2010-04-16 | 2011-10-19 | 株式会社大亨 | Welding torch for arc welding |
| CN105322308A (en) * | 2014-07-31 | 2016-02-10 | 张建生 | Electrode clamp with warning function |
| CN105312748A (en) * | 2014-07-31 | 2016-02-10 | 张建生 | Strengthening type electrode clamp |
| CN105322335A (en) * | 2014-07-31 | 2016-02-10 | 张建生 | Electrode clamp |
| CN109834376A (en) * | 2017-11-28 | 2019-06-04 | 宁波方太厨具有限公司 | A kind of automatic adjustment welding gun head tungsten needle height locating device |
| CN109834377A (en) * | 2017-11-28 | 2019-06-04 | 宁波方太厨具有限公司 | A kind of tungsten needle positioning device that screw thread is adjusted |
| CN110891724A (en) * | 2017-07-04 | 2020-03-17 | 弗罗纽斯国际有限公司 | Welding gun |
| CN114269506A (en) * | 2019-08-05 | 2022-04-01 | J·罗杰斯 | Inert gas torch head with adjustable electrode receptor |
| WO2022267106A1 (en) * | 2021-06-24 | 2022-12-29 | 浙江普尔尼机电股份有限公司 | Multifunctional handheld electric welding machine having replaceable connector |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2550495A (en) * | 1947-02-28 | 1951-04-24 | Union Carbide & Carbon Corp | Gas blanketed arc welding |
| US3250889A (en) * | 1964-05-21 | 1966-05-10 | Louis F Himmelman | Electric welding torch |
| US3510622A (en) * | 1967-09-20 | 1970-05-05 | Himmelmann Louis F | Gas cooled and gas shielded electric welding torch |
| US4673792A (en) * | 1986-01-31 | 1987-06-16 | Eutectic Corporation | Gas-constricted arc nozzle |
| CN1083424A (en) * | 1993-04-06 | 1994-03-09 | 铁道部戚墅堰机车车辆工艺研究所 | Plasma cutting-torch |
-
1994
- 1994-09-20 CN CN94115237A patent/CN1043460C/en not_active Expired - Lifetime
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102218588B (en) * | 2010-04-16 | 2014-12-31 | 株式会社大亨 | Welding torch for arc welding |
| CN102218588A (en) * | 2010-04-16 | 2011-10-19 | 株式会社大亨 | Welding torch for arc welding |
| CN105322308A (en) * | 2014-07-31 | 2016-02-10 | 张建生 | Electrode clamp with warning function |
| CN105312748A (en) * | 2014-07-31 | 2016-02-10 | 张建生 | Strengthening type electrode clamp |
| CN105322335A (en) * | 2014-07-31 | 2016-02-10 | 张建生 | Electrode clamp |
| CN105322308B (en) * | 2014-07-31 | 2017-12-05 | 常州靓宇焊割有限公司 | Early warning electrode holder |
| CN110891724B (en) * | 2017-07-04 | 2022-02-18 | 弗罗纽斯国际有限公司 | Welding gun |
| US11597028B2 (en) | 2017-07-04 | 2023-03-07 | Fronius International Gmbh | Welding torch |
| CN110891724A (en) * | 2017-07-04 | 2020-03-17 | 弗罗纽斯国际有限公司 | Welding gun |
| CN109834376A (en) * | 2017-11-28 | 2019-06-04 | 宁波方太厨具有限公司 | A kind of automatic adjustment welding gun head tungsten needle height locating device |
| CN109834376B (en) * | 2017-11-28 | 2020-11-24 | 宁波方太厨具有限公司 | Automatic adjust welding rifle head tungsten needle height positioning device |
| CN109834377A (en) * | 2017-11-28 | 2019-06-04 | 宁波方太厨具有限公司 | A kind of tungsten needle positioning device that screw thread is adjusted |
| CN114269506A (en) * | 2019-08-05 | 2022-04-01 | J·罗杰斯 | Inert gas torch head with adjustable electrode receptor |
| WO2022267106A1 (en) * | 2021-06-24 | 2022-12-29 | 浙江普尔尼机电股份有限公司 | Multifunctional handheld electric welding machine having replaceable connector |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1043460C (en) | 1999-05-26 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20140920 Granted publication date: 19990526 |