CN201500853U - projection welding electrode - Google Patents
projection welding electrode Download PDFInfo
- Publication number
- CN201500853U CN201500853U CN200920208474XU CN200920208474U CN201500853U CN 201500853 U CN201500853 U CN 201500853U CN 200920208474X U CN200920208474X U CN 200920208474XU CN 200920208474 U CN200920208474 U CN 200920208474U CN 201500853 U CN201500853 U CN 201500853U
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- CN
- China
- Prior art keywords
- electrode
- projection welding
- welding
- end surface
- cross groove
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- Expired - Lifetime
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Abstract
The utility model discloses a projection welding electrode which comprises an electrode main body and is characterized in that the lower end surface of the electrode is provided with a center cross groove. Through arranging the center cross groove at the end surface of the electrode, the projection welding electrode reduces the contact area of the electrode and a welded part, effectively improves the electrode force and current density of four welding spots in projection welding, reduces the current shunt, and leads the flour welding spots to obtain stable and consistent nuggets, thus greatly improving the welding quality. In addition, after the end surface of the electrode is provided with the center cross groove, the maintenance area on the end surface of the electrode can be reduced everytime, the maintenance quality and efficiency are improved and the service life of the electrode is prolonged. The projection welding electrode solves the structure reliability after projection welding, improves the passing rate of products, improves quality, efficiency and production process stability, and improves tooling maintenance performance.
Description
Technical field
The utility model relates to a kind of projection welding electrode, particularly a kind of projection welding electrode that is widely used in metallic stamping pieces projection welding structure, and it can improve the projection welding structural reliability greatly, and improves the frock maintainability.
Background technology
Projection welding is a kind of distortion of spot welding, normally goes out salient point on one of two plates, welds then.Because electric current is concentrated, the shortcoming of nugget skew when having overcome spot welding, thereby the thickness ratio of workpiece can be above 6: 1 during projection welding.In automobile and household electrical appliances hardware design at present, mainly adopt the direct projection welding of metal parts to another part, once form the method for 4 solder joints, thereby lifting production efficiency, design has although it is so reduced part production process and welding energy consumption, and reduced number of spare parts, and be more conducive to use environmental protection, reduce production costs simultaneously.But such structural design is very high for the requirement of projection welding, and traditional projection welding electrode can't reliably guarantee the formation weld nugget that 4 salient points can be stable, and welding process is influenced by export license and be unreliable.So need improve traditional electrode, solve the reliability of welding process, the ease for maintenance of frock.
Summary of the invention
Technical problem to be solved in the utility model is that existing projection welding electrode is improved, and the projection welding electrode that structural reliability is good, the production qualification rate is high after a kind of projection welding is provided, to overcome the above-mentioned defective that prior art exists.
The technical scheme of the utility model technical solution problem is as follows:
A kind of projection welding electrode, it comprises electrode body, it is characterized in that, described electrode lower surface offers the central cross groove.
By above disclosed technical scheme as can be known, the utility model is by offering the central cross groove at electrode end surface, reduce electrode and the contact area of being welded part, the electrode pressure at 4 solder joint positions, current density when effectively having improved projection welding, reduced the electric current shunting, 4 solder joints all can obtain the nugget of stable and consistent, thereby welding quality is improved greatly.In addition, after electrode end surface is newly opened the central cross groove, electrode end surface is safeguarded that area reduces, maintenance quality and efficient are improved at every turn, and electrode life is prolonged.
Compare with existing conventional art, this use is novel to have the following advantages:
1. welding process is reliable and stable, welding quality height, constant product quality.
2. frock maintenance quality and efficient improve, and have promoted production efficiency.
3. because of effectively having guaranteed welding quality, can suitably reduce the input of welding heat energy, save the energy.
Description of drawings
Fig. 1 faces structural representation for the utility model projection welding electrode lower surface.
Fig. 2 is the utility model projection welding electrode sectional structure schematic diagram.
The specific embodiment
Below in conjunction with accompanying drawing with further specify the utility model.
As shown in Figure 1 and Figure 2, the utility model projection welding electrode comprises electrode body 1, and described electrode lower surface offers central cross groove 2.The bottom of described electrode body 1 is rectangular column, and top is circular cone shape, and center, its underpart is provided with centre bore 3.
Further, the groove width of described central cross groove 2 is 2mm～6mm.
The groove depth of described central cross groove 2 is 8mm～15mm.
Claims (4)
1. projection welding electrode, it comprises electrode body (1), it is characterized in that, described electrode lower surface offers central cross groove (2).
2. projection welding electrode according to claim 1 is characterized in that, the groove width of described central cross groove (2) is 2mm～6mm.
3. projection welding electrode according to claim 1 is characterized in that, the groove depth of described central cross groove (2) is 8mm～15mm.
4. projection welding electrode according to claim 1 is characterized in that, the bottom of described electrode body (1) is rectangular column, and top is circular cone shape, and center, its underpart is provided with centre bore (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920208474XU CN201500853U (en) | 2009-08-26 | 2009-08-26 | projection welding electrode |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920208474XU CN201500853U (en) | 2009-08-26 | 2009-08-26 | projection welding electrode |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201500853U true CN201500853U (en) | 2010-06-09 |
Family
ID=42451795
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920208474XU Expired - Lifetime CN201500853U (en) | 2009-08-26 | 2009-08-26 | projection welding electrode |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201500853U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102935557A (en) * | 2012-10-26 | 2013-02-20 | 秦皇岛博硕光电设备股份有限公司 | Welding head for welding device and welding device |
| CN104722909A (en) * | 2013-09-06 | 2015-06-24 | 通用汽车环球科技运作有限责任公司 | Apparatus and methods for repairing discrepant welds |
-
2009
- 2009-08-26 CN CN200920208474XU patent/CN201500853U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102935557A (en) * | 2012-10-26 | 2013-02-20 | 秦皇岛博硕光电设备股份有限公司 | Welding head for welding device and welding device |
| CN104722909A (en) * | 2013-09-06 | 2015-06-24 | 通用汽车环球科技运作有限责任公司 | Apparatus and methods for repairing discrepant welds |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Shenyang Jiezhong Auto Parts Co.,Ltd. Assignor: Shanghai Tractor & Internal Combustion Engine Co., Ltd. Contract record no.: 2011210000123 Denomination of utility model: Projection welding electrode Granted publication date: 20100609 License type: Exclusive License Record date: 20110829 |
|
| EC01 | Cancellation of recordation of patent licensing contract |
Assignee: Shenyang Jiezhong Auto Parts Co.,Ltd. Assignor: Shanghai Tractor & Internal Combustion Engine Co., Ltd. Contract record no.: 2011210000123 Date of cancellation: 20120521 |
|
| CX01 | Expiry of patent term |
Granted publication date: 20100609 |
|
| CX01 | Expiry of patent term |