CN202317417U - Spot-welding electrode capable of preventing nut from being adhered to positioning pin - Google Patents
Spot-welding electrode capable of preventing nut from being adhered to positioning pin Download PDFInfo
- Publication number
- CN202317417U CN202317417U CN2011204166968U CN201120416696U CN202317417U CN 202317417 U CN202317417 U CN 202317417U CN 2011204166968 U CN2011204166968 U CN 2011204166968U CN 201120416696 U CN201120416696 U CN 201120416696U CN 202317417 U CN202317417 U CN 202317417U
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- nut
- alignment pin
- spot
- electrode
- positioning pin
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Abstract
The utility model discloses a spot-welding electrode capable of preventing a nut from being adhered to a positioning pin. The electrode comprises an upper electrode, a lower electrode and the positioning pin which stretches into a central hole of the nut which is needed to be spot-welded upwards to limit the transverse degree of freedom of the nut, wherein the positioning pin is elastically arranged on the lower electrode in a reciprocating sliding mode; a driving section is arranged at the upper end of the positioning pin; the nut can extend out of the driving section upwards; the external diameter of the driving section is smaller than that of the positioning pin; and when the upper electrode is contacted with the driving section in an insulated mode and presses the driving section downwards to make the driving section be contacted with the nut which is needed to be spot-welded, the positioning pin is separated from the nut downwards. When the upper electrode is contacted with the nut, the positioning pin is separated from the nut, so that the insulation property is ensured, the nut cannot be adhered to the positioning pin while the nut is well positioned by the positioning pin, and welding accuracy and the subsequent assembly property of the nut are ensured; and meanwhile, the driving section on the positioning pin is insulated from the nut, so an insulation layer is not required to be arranged between the upper electrode and the lower electrode, the phenomena that the insulation layer is worn and the positioning pin falls off are avoided, and the electrode has long service life.
Description
Technical field
The utility model relates to a kind of machining set-up, particularly a kind of spot-wedling electrode that is used for plate workpiece spot welding nut.
Background technology
Plate workpiece is the requisite parts of automobile, comprises car body and backplate etc., and these plate workpieces can be installed some parts usually when automobile assembling, thereby, need on this plate-shaped member, weld some in advance nut is installed, be convenient to the later stage assembling.In the prior art,, generally adopt the mode in the keeper electrode weldering, avoid other welding manner inefficiencies, the problem that welding precision is low for guaranteeing the welding precision of welded nut.
The instrument of existing spot welding nut electrode weldering comprises bottom electrode and top electrode, and bottom electrode is electrically connected tabular workpiece, and plate workpiece is withstood in general employing from bottom to top; With the positioning and fixing effect; Plate workpiece needs spot welding nut place perforate in advance and relative with nut, and the bottom electrode insulation is provided with alignment pin and upwards stretches into nut by this hole nut is positioned, and is to guarantee the alignment pin insulation; Alignment pin can not stretch out nut, to guarantee the smooth spot welding of nut.Alignment pin generally is arranged at bottom electrode through insulating barrier, and after repeatedly using, insulating barrier can cause wearing and tearing; And alignment pin is deviate from, influence electrode and normally use, and; Contact the location in the alignment pin whole welding process with nut inner hole; Be difficult to avoid sticking together, influence welding quality, and influence the later stage assembling of nut.
Therefore; Need a kind of spot-wedling electrode, on plate workpiece during welded nut, the adhesion between alignment pin and the nut does not take place when can guarantee alignment pin to the good location of nut; Guarantee the later stage assembling of welding precision and nut; Simultaneously, the phenomenon that alignment pin comes off can not take place, make electrode have long service life.
The utility model content
In view of this; The purpose of the utility model provides a kind of nut anti spot-wedling electrode, on plate workpiece during welded nut, the adhesion between alignment pin and the nut does not take place when can guarantee alignment pin to the good location of nut; Guarantee the later stage assembling of welding precision and nut; Simultaneously, the phenomenon that alignment pin comes off can not take place, make electrode have long service life.
The nut anti spot-wedling electrode of the utility model; Comprise top electrode and bottom electrode; Also comprise and be used for upwards stretching into the alignment pin that needs spot welding nut centre bore to limit its horizontal free degree; Said alignment pin is flexibly set in bottom electrode with mode sliding back and forth, and said alignment pin upper end is provided with and can extends upward out nut and the external diameter driving section less than alignment pin, and said top electrode insulation contact also presses down that alignment pin breaks away from this nut downwards when driving the contact of Duan Yuxu spot welding nut.
Further; Said bottom electrode upper end is electrically connected and is provided with the conduction fixed cover; The fixed cover upper surface is used for contacting and be provided with guide slide with the spot welding workpiece, and said alignment pin is slidingly matched and extends into the guide slide of fixed cover, is provided with in the fixed cover alignment pin is applied the upwards spring of pretightning force;
Further, said fixed cover is threaded with bottom electrode;
Further, the cavity size that said fixed cover is used to hold spring is greater than the alignment pin radial dimension, and the alignment pin bottom is provided with and is positioned at this cavity and is used to limit the annular stop boss of alignment pin to top offset;
Further, said top electrode lower end is provided with insulation tank, and the insulation tank inner surface is coated with insulating barrier;
Further, the insulating barrier of said insulation tank inner surface is a flexible insulating layer, and the insulating barrier of insulation tank bottom has enough buffering thickness.
The beneficial effect of the utility model is: the nut anti spot-wedling electrode of the utility model is employed in alignment pin top the driving section of external diameter less than alignment pin is set, when top electrode presses down; Insulation is depressed to drive section and drive alignment pin and is moved down, and when top electrode touched nut, alignment pin broke away from nut; Because it is less to drive the section external diameter, does not contact with nut, guarantees insulating properties; Thereby on plate workpiece during welded nut, when can guarantee alignment pin to the good location of nut the adhesion between alignment pin and the nut does not take place, guarantee the later stage assembling of welding precision and nut; Simultaneously because driving section and nut on the alignment pin insulate, thereby do not need and bottom electrode between insulating barrier is set; The phenomenon that insulating barrier wearing and tearing and alignment pin come off can not take place, and makes electrode have long service life.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the utility model is further described.
Fig. 1 is the structural representation of the utility model.
The specific embodiment
Fig. 1 is the structural representation of the utility model; As shown in the figure: the nut anti spot-wedling electrode of present embodiment; Comprise top electrode 1 and bottom electrode 2, also comprise being used for upwards stretching into the alignment pin 3 that needs spot welding nut 4 centre bores to limit its horizontal free degree that said alignment pin 3 is flexibly set in bottom electrode 2 with mode sliding back and forth; Said alignment pin 3 upper ends are provided with and can extend upward out nut and the external diameter driving section 3a less than alignment pin; Said top electrode 1 insulate and contacts and press down alignment pin 3 downward these nuts 4 of disengaging when driving section 3a and needing spot welding nut 4 to contact, and as shown in the figure, alignment pin 3 extends up through the centre bore that needs spot welding nut 4; Radial clearance is as far as possible little, is beneficial to better location; Need spot welding nut 4 to place on the preformed hole of plate workpiece 5, plate workpiece is withstood in the bottom electrode upper end.
In the present embodiment; Said bottom electrode 2 upper ends are electrically connected and are provided with conduction fixed cover 9; Fixed cover 9 upper surfaces are used for contacting and be provided with guide slide 9a with spot welding workpiece 5; The guide slide 9a that said alignment pin 3 is slidingly matched and extends into fixed cover 9 is provided with in the fixed cover 9 alignment pin 3 is applied the upwards spring 6 of pretightning force.
In the present embodiment, said fixed cover 9 is threaded with bottom electrode 2.
In the present embodiment, the cavity size that said fixed cover 9 is used to hold spring 6 is greater than alignment pin 3 radial dimensions, and alignment pin 3 bottoms are provided with and are positioned at this cavity and are used to limit the annular stop boss 3b of alignment pin to top offset.
In the present embodiment, said top electrode 1 lower end is provided with insulation tank 8, and insulation tank 8 inner surfaces are coated with insulating barrier 7, avoids driving section 3a and top electrode 1 to come in contact and causes short circuit phenomenon, guarantees that pinpoint welding procedure efficiently carries out smoothly.
In the present embodiment; The insulating barrier 7 of said insulation tank 8 inner surfaces is a flexible insulating layer; The insulating barrier of insulation tank 8 bottoms has enough buffering thickness, and when carrying out spot welding, the bottom flexible insulating layer with alignment pin buffering takes place and contacts; Be beneficial to and avoid taking place top electrode 1 and contact interference with nut, guarantee that welding carries out smoothly.
Explanation is at last; Above embodiment is only unrestricted in order to the technical scheme of explanation the utility model; Although with reference to preferred embodiment the utility model is specified, those of ordinary skill in the art should be appreciated that and can make amendment or be equal to replacement the technical scheme of the utility model; And not breaking away from the aim and the scope of the utility model technical scheme, it all should be encompassed in the middle of the claim scope of the utility model.
Claims (6)
1. nut anti spot-wedling electrode; Comprise top electrode and bottom electrode; It is characterized in that: also comprise being used for upwards stretching into the alignment pin that needs spot welding nut centre bore to limit its horizontal free degree; Said alignment pin is flexibly set in bottom electrode with mode sliding back and forth, and said alignment pin upper end is provided with and can extends upward out nut and the external diameter driving section less than alignment pin, and said top electrode insulation contact also presses down that alignment pin breaks away from this nut downwards when driving the contact of Duan Yuxu spot welding nut.
2. nut anti spot-wedling electrode according to claim 1; It is characterized in that: said bottom electrode upper end is electrically connected and is provided with the conduction fixed cover; The fixed cover upper surface is used for contacting and be provided with guide slide with the spot welding workpiece; Said alignment pin is slidingly matched and extends into the guide slide of fixed cover, is provided with in the fixed cover alignment pin is applied the upwards spring of pretightning force.
3. nut anti spot-wedling electrode according to claim 2, it is characterized in that: said fixed cover is threaded with bottom electrode.
4. nut anti spot-wedling electrode according to claim 3; It is characterized in that: the cavity size that said fixed cover is used to hold spring is greater than the alignment pin radial dimension, and the alignment pin bottom is provided with and is positioned at this cavity and is used to limit the annular stop boss of alignment pin to top offset.
5. nut anti spot-wedling electrode according to claim 4 is characterized in that: said top electrode lower end is provided with insulation tank, and the insulation tank inner surface is coated with insulating barrier.
6. nut anti spot-wedling electrode according to claim 5 is characterized in that: the insulating barrier of said insulation tank inner surface is a flexible insulating layer, and the insulating barrier of insulation tank bottom has enough buffering thickness.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204166968U CN202317417U (en) | 2011-10-27 | 2011-10-27 | Spot-welding electrode capable of preventing nut from being adhered to positioning pin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204166968U CN202317417U (en) | 2011-10-27 | 2011-10-27 | Spot-welding electrode capable of preventing nut from being adhered to positioning pin |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202317417U true CN202317417U (en) | 2012-07-11 |
Family
ID=46429414
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204166968U Expired - Fee Related CN202317417U (en) | 2011-10-27 | 2011-10-27 | Spot-welding electrode capable of preventing nut from being adhered to positioning pin |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202317417U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103962704A (en) * | 2014-05-22 | 2014-08-06 | 北京汽车研究总院有限公司 | Welding electrode head and welding system |
| CN104493356A (en) * | 2014-11-20 | 2015-04-08 | 上海奥林汽车配件有限公司 | Positioning resistance welding electrode for reinforcement plate welded assemblies of automobile locks |
| CN105290674A (en) * | 2015-10-29 | 2016-02-03 | 北京航科发动机控制***科技有限公司 | Special-shaped spot welding lower electrode stretching into outer ring assembly |
| CN105583513A (en) * | 2016-03-21 | 2016-05-18 | 南京大盛汽车部件有限公司 | Electrode tip structure of spot welding machine |
| CN109719379A (en) * | 2019-01-17 | 2019-05-07 | 大连理工大学 | A kind of ceramic core annular copper electrode and its resistance spot welding method |
| CN110814497A (en) * | 2019-11-22 | 2020-02-21 | 吉林大学 | Film insulation core non-conductive electrode cap and annular nugget resistance spot welding method |
| CN112276324A (en) * | 2020-12-30 | 2021-01-29 | 季华科技有限公司 | Be used for articulated resistance welding device of car wiring harness wire |
| CN114043060A (en) * | 2021-12-10 | 2022-02-15 | 安徽江淮汽车集团股份有限公司 | Resistance spot welding positioning tool for threaded part and plate |
-
2011
- 2011-10-27 CN CN2011204166968U patent/CN202317417U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103962704A (en) * | 2014-05-22 | 2014-08-06 | 北京汽车研究总院有限公司 | Welding electrode head and welding system |
| CN103962704B (en) * | 2014-05-22 | 2016-05-18 | 北京汽车研究总院有限公司 | Welding electrode head and welding system |
| CN104493356A (en) * | 2014-11-20 | 2015-04-08 | 上海奥林汽车配件有限公司 | Positioning resistance welding electrode for reinforcement plate welded assemblies of automobile locks |
| CN105290674A (en) * | 2015-10-29 | 2016-02-03 | 北京航科发动机控制***科技有限公司 | Special-shaped spot welding lower electrode stretching into outer ring assembly |
| CN105583513A (en) * | 2016-03-21 | 2016-05-18 | 南京大盛汽车部件有限公司 | Electrode tip structure of spot welding machine |
| CN109719379A (en) * | 2019-01-17 | 2019-05-07 | 大连理工大学 | A kind of ceramic core annular copper electrode and its resistance spot welding method |
| CN110814497A (en) * | 2019-11-22 | 2020-02-21 | 吉林大学 | Film insulation core non-conductive electrode cap and annular nugget resistance spot welding method |
| CN112276324A (en) * | 2020-12-30 | 2021-01-29 | 季华科技有限公司 | Be used for articulated resistance welding device of car wiring harness wire |
| CN114043060A (en) * | 2021-12-10 | 2022-02-15 | 安徽江淮汽车集团股份有限公司 | Resistance spot welding positioning tool for threaded part and plate |
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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: 20120711 Termination date: 20141027 |
|
| EXPY | Termination of patent right or utility model |