CN103962702A - Lower electrode device for projection welding nuts of car parts - Google Patents
Lower electrode device for projection welding nuts of car parts Download PDFInfo
- Publication number
- CN103962702A CN103962702A CN201310044591.8A CN201310044591A CN103962702A CN 103962702 A CN103962702 A CN 103962702A CN 201310044591 A CN201310044591 A CN 201310044591A CN 103962702 A CN103962702 A CN 103962702A
- Authority
- CN
- China
- Prior art keywords
- lower electrode
- alignment pin
- welded
- welding
- projection welding
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K11/00—Resistance welding; Severing by resistance heating
- B23K11/14—Projection welding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K11/00—Resistance welding; Severing by resistance heating
- B23K11/30—Features relating to electrodes
- B23K11/31—Electrode holders and actuating devices therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K11/00—Resistance welding; Severing by resistance heating
- B23K11/36—Auxiliary equipment
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Resistance Welding (AREA)
Abstract
The invention relates to a lower electrode device for projection welding nuts of car parts. The welded nuts are welded on the car parts by the lower electrode device which comprises a positioning pin, a lower electrode, a lower electrode base and a ventilation connector. The positioning pin is mounted into the lower electrode base after being penetratingly arranged on the lower electrode. The ventilation connector is mounted on the lower electrode base. A gap is reserved between the positioning pin and the lower electrode. The welded nuts and the welded car parts are mounted on the positioning pin. In a process of projection welding, gas enters the lower electrode base via the ventilation connector and is blown out via the gap between the positioning pin and the lower electrode, and the blown out gas blows splashes generated during projection welding. Compared with the prior art, the lower electrode device has the advantages of wide application range, high yield, lower production cost, convenience in maintenance and the like.
Description
Technical field
The present invention relates to a kind of car part process technology, especially relate to a kind of lower electrode device for car part project-welding nut.
Background technology
At present, the fixing projection welder using on automobile welding lines in factory, main by changing different size projection welding die head on welder lower electrode seat, meet the projection welding of (comprising M4, M5, M6, M8, M10, M12 etc.) of multiple project-welding nut, control mode realizes by manual operation floor push.
Existing many projection welders, in the process of project-welding nut, can produce and splash.Splash is splashed in nut, can cause nut thread impaired.Thereby part need to be reprocessed, and nut needs tapping again and need to cut the splash being attached on part.In causing part production declining, in manpower and materials, also can cause great waste.
Summary of the invention
Object of the present invention be exactly provide in order to overcome the defect that above-mentioned prior art exists a kind of scope of application wide, improve output, reduce production costs, the lower electrode device for car part project-welding nut easy to maintenance.
Object of the present invention can be achieved through the following technical solutions:
A kind of lower electrode device for car part project-welding nut, this device by welded nut-welding on welded auto parts, it is characterized in that, described lower electrode device comprises alignment pin, bottom electrode, lower electrode holder and ventilating joint, after described alignment pin is located on bottom electrode, pack in the lump in lower electrode holder, described ventilating joint is contained on lower electrode holder, between described alignment pin and bottom electrode, be provided with gap, described welded nut and welded auto parts are contained on alignment pin;
In projection welding process, gas enters in lower electrode holder by ventilating joint, blows out through the gap between alignment pin and bottom electrode, and the splash that the air blowing out produces during by projection welding blows away.
Between described alignment pin and bottom electrode, be provided with insulation steel bushing.
Described alignment pin is connected with lower electrode holder by spring, felt pad successively.
Between described bottom electrode lower end and alignment pin, be provided with O type circle.
Compared with prior art, the present invention has the following advantages:
1, the scope of application is wide: this invention is applicable on all kinds of projection welders.
2, improve output: use this invention, can obviously reduce the repair rate of part, thereby greatly improve the output of part.
3, reduce production costs: use this invention, can reduce the workman who reprocesses station, and reduction is used the consumption of reprocessing auxiliary material.Thereby reduce production costs.
4, easy to maintenance: as ventilation interface fails, only need again to change ventilation interface.
Brief description of the drawings
Fig. 1 is structural representation of the present invention.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the present invention is described in detail.
Embodiment
As shown in Figure 1, a kind of lower electrode device for car part project-welding nut, this device is welded on welded nut 5 on welded auto parts 6, described lower electrode device comprises alignment pin 4, bottom electrode 3, lower electrode holder 7 and ventilating joint 1, after described alignment pin 4 is located on bottom electrode 3, pack in the lump in lower electrode holder 7
Described ventilating joint 1 is contained on lower electrode holder 7, between described alignment pin 4 and bottom electrode 3, is provided with gap, and described welded nut 5 and welded auto parts 6 are contained on alignment pin 4;
In projection welding process, gas enters in lower electrode holder 7 by ventilating joint 1, blows out through the gap between alignment pin 4 and bottom electrode 3, and the splash that the air blowing out produces during by projection welding blows away.
Between described alignment pin 4 and bottom electrode 3, be provided with insulation steel bushing 2.Described alignment pin 4 is connected with lower electrode holder 7 by spring 9, felt pad 10 successively.Between described bottom electrode 3 lower ends and alignment pin 4, be provided with O type circle 8.
The present invention, in the time of projection welder project-welding nut, by ventilating joint 1 place air inlet, then is given out by alignment pin 4 and the gap of bottom electrode 3 connections.Splashing of producing during project-welding nut blows out, thereby ensured the intact of part.
Claims (4)
1. the lower electrode device for car part project-welding nut, this device by welded nut-welding on welded auto parts, it is characterized in that, described lower electrode device comprises alignment pin, bottom electrode, lower electrode holder and ventilating joint, after described alignment pin is located on bottom electrode, pack in the lump in lower electrode holder, described ventilating joint is contained on lower electrode holder, between described alignment pin and bottom electrode, be provided with gap, described welded nut and welded auto parts are contained on alignment pin;
In projection welding process, gas enters in lower electrode holder by ventilating joint, blows out through the gap between alignment pin and bottom electrode, and the splash that the air blowing out produces during by projection welding blows away.
2. a kind of lower electrode device for car part project-welding nut according to claim 1, is characterized in that, is provided with insulation steel bushing between described alignment pin and bottom electrode.
3. a kind of lower electrode device for car part project-welding nut according to claim 1, is characterized in that, described alignment pin is connected with lower electrode holder by spring, felt pad successively.
4. a kind of lower electrode device for car part project-welding nut according to claim 1, is characterized in that, is provided with O type circle between described bottom electrode lower end and alignment pin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310044591.8A CN103962702A (en) | 2013-02-04 | 2013-02-04 | Lower electrode device for projection welding nuts of car parts |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310044591.8A CN103962702A (en) | 2013-02-04 | 2013-02-04 | Lower electrode device for projection welding nuts of car parts |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103962702A true CN103962702A (en) | 2014-08-06 |
Family
ID=51232969
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310044591.8A Pending CN103962702A (en) | 2013-02-04 | 2013-02-04 | Lower electrode device for projection welding nuts of car parts |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103962702A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104308352A (en) * | 2014-10-15 | 2015-01-28 | 南京理工大学 | Combined projection welding insulated dowel |
| CN104741762A (en) * | 2015-03-30 | 2015-07-01 | 浙江长华汽车零部件有限公司 | Self-deslagging electrode locating pin device |
| CN105855756A (en) * | 2016-05-09 | 2016-08-17 | 亿和精密工业（中山）有限公司 | Welding electrode structure with slag blowing function |
-
2013
- 2013-02-04 CN CN201310044591.8A patent/CN103962702A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104308352A (en) * | 2014-10-15 | 2015-01-28 | 南京理工大学 | Combined projection welding insulated dowel |
| CN104741762A (en) * | 2015-03-30 | 2015-07-01 | 浙江长华汽车零部件有限公司 | Self-deslagging electrode locating pin device |
| CN105855756A (en) * | 2016-05-09 | 2016-08-17 | 亿和精密工业（中山）有限公司 | Welding electrode structure with slag blowing function |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140806 |