CN205200787U - Shunting projection welding electrode is prevented in ring nut special use - Google Patents
Shunting projection welding electrode is prevented in ring nut special use Download PDFInfo
- Publication number
- CN205200787U CN205200787U CN201521069709.3U CN201521069709U CN205200787U CN 205200787 U CN205200787 U CN 205200787U CN 201521069709 U CN201521069709 U CN 201521069709U CN 205200787 U CN205200787 U CN 205200787U
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- China
- Prior art keywords
- electrode
- alignment pin
- nut
- electrode cap
- projection welding
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Abstract
The utility model relates to a shunting projection welding electrode is prevented in ring nut special use, include by body electrode support, electrode cap, locating pin and go up the electrode, the upper portion of electrode support is equipped with the electrode support cavity, and electrode support cavity upper end is equipped with the internal thread, and electrode support cavity side is through the articulate air feeder that ventilates, and the compression cavity of introduction makes locating pin protrusion and fix a position ring nut before last electrode contact nut, and the electrode cap passes through the thread tightening and is the electrode cap centre bore in electrode support upper end, electrode cap center, and the lower part that the electrode cap centre bore was followed on locating pin upper portion penetrates. The profitable effect of utility model is: the axiality positioning accuracy of nut and plate hole site can be ensured to the interfix path of locating pin upper end, the peripheral boss in locating pin upper end can ensure that the bulge loop of nut and plate hole site separate, avoid the reposition of redundant personnel, this electrode ensures that the welding strength 100 percent of nut is qualified, reduces to consolidate and welds reduction in production cost.
Description
Technical field
The utility model relates to a kind of anti-dividing technology, the special anti-shunting projection welding electrode of especially a kind of collar nut.
Background technology
In automobile manufacturing process, a large amount of electric resistance welding that adopts carries out parts connection, comprising the resistance spot welding between sheet metal component, resistance projection-welding etc. between sheet metal component nut and bolt.Projection welding is the one of spot welding, refers to that the one side that nut or bolt are being fitted with workpiece precasts more than one salient point or bulge loop, and with absorption surface and electrified regulation, finally pressure is collapsed and reached solder joint and combine.The nut and bolt of parts welding is mainly used in the interior exterior trim assembling in later stage, part is used for withstand voltage containing the nut of bulge loop and seals, this type of collar nut is when actual welding, very easily contact with plate to produce and shunt, cause weld strength defective, for reaching quality index, the general CO2 of employing welds and reinforces, reduce production efficiency, and add production cost.
Therefore, needing a kind of electrode, when welding collar nut, the bulge loop of nut and the EDGE CONTACT of panel hole position can be prevented, avoid shunting, ensure nut accurate positioning simultaneously, make weld strength 100% qualified.
Summary of the invention
The utility model will solve the shortcoming of above-mentioned prior art, a kind of special anti-shunting electrode is provided, avoids producing shunting when plate workpiece welding collar nut, and ensure weld nut and panel hole position does not offset, and then guarantee that parts welding quality is up to standard, be beneficial to later stage assembling and use.
The utility model solves the technical scheme that its technical problem adopts: the special anti-shunting projection welding electrode of this collar nut, comprise body electrode tip holder, electrode cap, alignment pin and top electrode, the top of described electrode tip holder is provided with electrode tip holder cavity, electrode tip holder cavity upper end is provided with internal thread, electrode tip holder cavity side connects feeder by ventilating joint, the compaction cavum introduced makes alignment pin protrude before top electrode contact nut and locate collar nut, electrode cap is by being screwed on electrode tip holder upper end, electrode cap center is electrode cap centre bore, alignment pin top penetrates from the bottom of electrode cap centre bore.
As preferably, described alignment pin outer surface is insulating barrier.
As preferably, described alignment pin upper end is provided with path and the peripheral boss of alignment pin in the middle of the alignment pin that matches with collar nut.
As preferably, the lower end of described alignment pin is conical.
As preferably, in described electrode cap, the aperture, upper end of electrode cap centre bore is identical with the diameter of the peripheral boss of alignment pin on alignment pin.
The effect that utility model is useful is: the interfix path of alignment pin upper end, can guarantee the axiality positioning precision of nut and panel hole position; The peripheral boss in alignment pin upper end, can guarantee that the bulge loop of nut and panel hole position separate, avoid shunting; This electrode guarantees that the weld strength 100% of nut is qualified, reduces and reinforces weldering, reduces production cost.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the work structuring schematic diagram before top electrode contact collar nut;
Fig. 3 is the work structuring schematic diagram after top electrode contact collar nut;
Description of reference numerals: path 3a, the peripheral boss 3b of alignment pin, electrode cap 4, electrode cap centre bore 4a, sheet material 5, collar nut 6, collar nut bulge loop 6a, collar nut endoporus 6b, top electrode 7 in the middle of electrode tip holder 1, electrode tip holder cavity 1a, ventilating joint 2, alignment pin 3, alignment pin.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is described in further detail:
Embodiment:
Electrode basic structure involved by the utility model as shown in Figure 1, comprises electrode tip holder 1, ventilating joint 2, electrode cap 4, alignment pin 3 and top electrode 7.Electrode tip holder 1 top is cavity 1a, and the inner side of cavity 1a also has screw thread, is beneficial to electrode cap 4 and is arranged on electrode tip holder 1 upper end, and the side of electrode tip holder cavity 1a connects ventilating joint 2, Compressed Gas is introduced electrode tip holder cavity 1a.The peripheral boss 3b of alignment pin 3 penetrates from the centre bore 4a of electrode cap 4, the diameter of the peripheral boss 3b of alignment pin is identical with the aperture, upper end of electrode cap centre bore 4a, wherein the aperture, stage casing of alignment pin 3 is lower deviation, the aperture, upper end of electrode cap centre bore 4a is the upper deviation, both matched in clearance, ventilating joint 2 introduce Compressed Gas effect under, alignment pin 3 from electrode cap centre bore 4a through stretching out; The lower end of alignment pin 3 is circular cone, utilizes tapering to block spacing in electrode cap centre bore 4a by alignment pin 3, and final alignment pin 3 protrudes shape in the display section, upper end of electrode cap 4.
Fig. 2, Fig. 3 are the work structuring that placement sheet material and collar nut carry out projection welding.In the middle of alignment pin, path 3a is slightly less than the diameter of bore of collar nut 6, and the screw thread that welding slag can be avoided to enter collar nut endoporus 6a blocks; Simultaneously in the middle of alignment pin the length of path 3a lower than the aperture length of collar nut 6, the lower blind bore aperture of top electrode 7 is greater than the diameter of path 3a in the middle of alignment pin, when collar nut 6 and sheet material 5 projection welding, path 3a and top electrode 7 electrical contact in the middle of alignment pin can be avoided.Leave cavity between path 3a and peripheral boss 3b in the middle of alignment pin, place collar nut bulge loop 6a; When top electrode 7 contact collar nut 6 carry out projection welding time, the bottom outlet of nut bulge loop 6a and sheet material 5 separates by the peripheral boss 3b of alignment pin, stops to shunt, ensures qualified weld strength.
In addition to the implementation, the utility model can also have other embodiments.All employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop on the protection domain of the utility model requirement.
Claims (5)
1. the special anti-shunting projection welding electrode of collar nut, comprise body electrode tip holder (1), electrode cap (4), alignment pin (3) and top electrode (7), it is characterized in that: the top of described electrode tip holder (1) is provided with electrode tip holder cavity (1a), electrode tip holder cavity (1a) upper end is provided with internal thread, electrode tip holder cavity (1a) side connects feeder by ventilating joint (2), the compaction cavum introduced makes alignment pin (3) protrude before top electrode (7) contact nut and locate collar nut (6), electrode cap (4) is by being screwed on electrode tip holder (1) upper end, electrode cap (4) center is electrode cap centre bore (4a), alignment pin (3) top penetrates from the bottom of electrode cap centre bore (4a).
2. the special anti-shunting projection welding electrode of collar nut according to claim 1, is characterized in that: described alignment pin (3) outer surface is insulating barrier.
3. the special anti-shunting projection welding electrode of collar nut according to claim 1, is characterized in that: described alignment pin (3) upper end is provided with path (3a) and the peripheral boss (3b) of alignment pin in the middle of alignment pin.
4. the special anti-shunting projection welding electrode of collar nut according to claim 1, is characterized in that: the lower end of described alignment pin (3) is for conical.
5. the special anti-shunting projection welding electrode of collar nut according to claim 1, is characterized in that: the aperture, upper end of described electrode cap (4) interior electrode cap centre bore (4a) is identical with the diameter of the peripheral boss (3b) of the upper alignment pin of alignment pin (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521069709.3U CN205200787U (en) | 2015-12-22 | 2015-12-22 | Shunting projection welding electrode is prevented in ring nut special use |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521069709.3U CN205200787U (en) | 2015-12-22 | 2015-12-22 | Shunting projection welding electrode is prevented in ring nut special use |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205200787U true CN205200787U (en) | 2016-05-04 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521069709.3U Expired - Fee Related CN205200787U (en) | 2015-12-22 | 2015-12-22 | Shunting projection welding electrode is prevented in ring nut special use |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205200787U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN108788427A (en) * | 2018-08-31 | 2018-11-13 | 上海兰盈智能科技有限公司 | Top electrode positioning, clamping project-welding nut structure |
-
2015
- 2015-12-22 CN CN201521069709.3U patent/CN205200787U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN108788427A (en) * | 2018-08-31 | 2018-11-13 | 上海兰盈智能科技有限公司 | Top electrode positioning, clamping project-welding nut structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160504 Termination date: 20211222 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |