CN204843240U - Spot welding auxiliary electrode - Google Patents
Spot welding auxiliary electrode Download PDFInfo
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- CN204843240U CN204843240U CN201520438203.9U CN201520438203U CN204843240U CN 204843240 U CN204843240 U CN 204843240U CN 201520438203 U CN201520438203 U CN 201520438203U CN 204843240 U CN204843240 U CN 204843240U
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- electrode
- auxiliary electrode
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- spot welding
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Abstract
The utility model provides a spot welding auxiliary electrode for work piece on with one (1) spot welding is in the in -process protection of lower work piece (2) the bottom of work piece (2) is avoided by the electric injury down, it sets up to go up work piece (1) the top of lower work piece (2), work piece (2) set up and are used for bearing the weight of one down on bottom electrode (3) of lower work piece (2), the top of going up work piece (1) is provided with last electrode (4) that are used for the spot welding operation, wherein, auxiliary electrode (5) set up down work piece (2) and between bottom electrode (3), auxiliary electrode (5) are flexible copper braid over braid. The utility model discloses a spot welding reduces the spot welding auxiliary electrode of the flexibility that the electrode wounded, through setting up it between work piece and bottom electrode, has strengthened the area of contact of work piece with the bottom electrode, has reduced and has crossed electric discharge phenomena, and the circumstances of having avoided the work piece bottom to be wounded takes place.
Description
Technical field
The utility model relates to a kind of soldering tech, and especially a kind of spot welding reduces the auxiliary equipment that electrode wounds, particularly a kind of spot welding auxiliary electrode.
Background technology
The blade assembly of aero-engine need adopt vacuum brazing to carry out shutoff to fabrication hole, all needs percussion spot welding in advance jam and blade to be located before vacuum brazing; Honeycomb part of obturaging need carry out vacuum brazing to honeycomb and matrix, also needs to carry out percussion spot welding location to honeycomb ring or honeycomb bar and matrix before weldering.Because percussion spot welding equipment is that after impelling two workpiece contacted with each other to switch on power by upper/lower electrode to workpiece electrical discharge after capacitor charging, a little fusing in local reaches location object.The contact point of percussion spot welding has at least three positions such as top electrode and workpiece, workpiece and workpiece, workpiece and bottom electrode, but the usual out-of-shape of the workpiece due to aero-engine, what cause contacting with bottom electrode is point or line, is easily wounded by overdischarge bottom workpiece.The part workpiece degree of depth is maximum reaches 0.5mm, and diameter can reach 3mm.Along with the raising of the Quality and property requirement of weaponry, more and more higher to the requirement of workpiece presentation quality, a lot of workpiece is repaiied owing to needing to carry out throwing after being wounded, and extends the delivery time of product, and there is stress at the place of wounding and concentrate the hidden danger causing crackle.
Utility model content
The technical problems to be solved in the utility model is to provide a kind of spot welding auxiliary electrode, to reduce or to avoid problem noted earlier.
Specifically, the utility model provides a kind of spot welding auxiliary electrode, for workpiece in pinpoint welding procedure easily by the problem of wounding, provide a kind of flexible auxiliary electrode of excellent conductive performance, to strengthen the contact area of workpiece and electrode, reduce over electric discharge phenomena, avoid being wounded bottom workpiece.
For solving the problems of the technologies described above, the utility model proposes a kind of spot welding auxiliary electrode, for protecting the bottom of described lower workpiece to avoid being electrically shocked wound being welded in the process of a lower workpiece by workpiece point on; Described upper workpiece setting is above described lower workpiece, described lower workpiece setting at one for carrying the bottom electrode of described lower workpiece, the top of described upper workpiece is provided with the top electrode for spot weld operation, wherein, described auxiliary electrode is arranged between described lower workpiece and described bottom electrode, and described auxiliary electrode is flexible copper braid band.
Preferably, described auxiliary electrode is squeezed into flat by described flexible copper braid band.
Preferably, the described auxiliary electrode area be layed between described lower workpiece and described bottom electrode is greater than the area that described lower workpiece directly contacts with described bottom electrode.
Preferably, the thickness of described auxiliary electrode is 4-8 millimeter.
The spot welding auxiliary electrode of the utility model by providing a kind of spot welding to reduce the flexibility that electrode wounds, by being arranged between workpiece and bottom electrode, increase the contact area of workpiece and bottom electrode, decrease overdischarge phenomenon, avoid bottom workpiece and occurred by the situation of wounding.
Accompanying drawing explanation
The following drawings is only intended to schematically illustrate the utility model and explain, does not limit scope of the present utility model.Wherein,
Fig. 1 display be the scheme of installation of spot welding auxiliary electrode according to a specific embodiment of the present utility model.
Detailed description of the invention
In order to there be understanding clearly to technical characteristic of the present utility model, object and effect, now contrast accompanying drawing and detailed description of the invention of the present utility model is described.Wherein, identical parts adopt identical label.
The scheme of installation of the spot welding auxiliary electrode of a specific embodiment of the present utility model as shown in Figure 1, in order to avoid lower workpiece 2 is electrically shocked wound in pinpoint welding procedure, the utility model is provided with one and avoids being electrically shocked the spot welding auxiliary electrode of wound for the bottom of workpiece 2 under protection in process workpiece on 1 being welded in a lower workpiece 2, as shown in the figure, upper workpiece 1 is arranged on the top of lower workpiece 2, lower workpiece 2 is arranged on one for carrying the bottom electrode 3 of lower workpiece 2, the top of upper workpiece 1 is provided with the top electrode 4 for spot welding, wherein, auxiliary electrode 5 is arranged between lower workpiece 2 and bottom electrode 3, auxiliary electrode 5 is flexible copper braid band.
The utility model by using the flexible copper braid band of different size as auxiliary electrode, can make lower workpiece be flexible contact with the hardening contact that contacts of bottom electrode, increasing the contact area of lower workpiece and bottom electrode, and what decrease that first salient point discharge and cause wounds.The utility model uses flexible copper braid band as intermediate medium, be placed between bottom electrode and lower workpiece, make lower workpiece and bottom electrode flexible contact, eliminate the electric discharge of salient point bleed, thus reach visitor and reduce or eliminate electrode and wound hole or the phenomenon in hole, improve the bottom presentation quality of lower workpiece.
In figure, described auxiliary electrode 5 is the structures being squeezed into flat by described flexible copper braid band, and in a preferred embodiment, the thickness of described auxiliary electrode 5 is 4-8 millimeter.
Preferably, described auxiliary electrode 5 area be layed between described lower workpiece 2 and described bottom electrode 3 is greater than the area that described lower workpiece 2 directly contacts with bottom electrode 3.
The flexible copper braid band that spot welding auxiliary electrode of the present utility model adopts solves lower workpiece and contacts with the hard of bottom electrode the electric discharge phenomena caused, the vestige of postwelding is not almost put bottom lower workpiece after spot weld operation, outward appearance, without obvious pit, has had the presentation quality of lower workpiece and has improved significantly.
Although it will be appreciated by those skilled in the art that the utility model is described according to the mode of multiple embodiment, not each embodiment only comprises an independently technical scheme.So describe in description be only used to clear for the purpose of; description should integrally be understood by those skilled in the art, and regards technical scheme involved in each embodiment as the mode that mutually can be combined into different embodiment to understand protection domain of the present utility model.
The foregoing is only the schematic detailed description of the invention of the utility model, and be not used to limit scope of the present utility model.Any those skilled in the art, the equivalent variations done under the prerequisite not departing from design of the present utility model and principle, amendment and combination, all should belong to the scope of the utility model protection.
Claims (4)
1. a spot welding auxiliary electrode, for protecting the bottom of described lower workpiece (2) to avoid being electrically shocked wound being welded in the process of a lower workpiece (2) by workpiece (1) point on; Described upper workpiece (1) is arranged on the top of described lower workpiece (2), described lower workpiece (2) is arranged on one for carrying the bottom electrode (3) of described lower workpiece (2), the top of described upper workpiece (1) is provided with the top electrode (4) for spot weld operation, it is characterized in that, described auxiliary electrode (5) is arranged between described lower workpiece (2) and described bottom electrode (3), and described auxiliary electrode (5) is flexible copper braid band.
2. spot welding auxiliary electrode as claimed in claim 1, it is characterized in that, described auxiliary electrode (5) is squeezed into flat by described flexible copper braid band.
3. spot welding auxiliary electrode as claimed in claim 1 or 2, it is characterized in that, described auxiliary electrode (5) area be layed between described lower workpiece (2) and described bottom electrode (3) is greater than the area that described lower workpiece (2) directly contacts with described bottom electrode (3).
4. spot welding auxiliary electrode as claimed in claim 2, it is characterized in that, the thickness of described auxiliary electrode (5) is 4-8 millimeter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520438203.9U CN204843240U (en) | 2015-06-25 | 2015-06-25 | Spot welding auxiliary electrode |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520438203.9U CN204843240U (en) | 2015-06-25 | 2015-06-25 | Spot welding auxiliary electrode |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204843240U true CN204843240U (en) | 2015-12-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520438203.9U Active CN204843240U (en) | 2015-06-25 | 2015-06-25 | Spot welding auxiliary electrode |
Country Status (1)
| Country | Link |
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| CN (1) | CN204843240U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110773854A (en) * | 2019-12-30 | 2020-02-11 | 骄英医疗器械(上海)有限公司 | Method for preparing connection structure of porous surface structure and substrate |
-
2015
- 2015-06-25 CN CN201520438203.9U patent/CN204843240U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110773854A (en) * | 2019-12-30 | 2020-02-11 | 骄英医疗器械(上海)有限公司 | Method for preparing connection structure of porous surface structure and substrate |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 412002 Dong Jiaduan, Zhuzhou, Hunan Patentee after: China Hangfa South Industrial Co. Ltd. Address before: 412002 Dong Jiaduan, Zhuzhou, Hunan Patentee before: China Southern Airlines Industry (Group) Co., Ltd. |