CN201645106U - Projection welding nut locating device preventing current from dividing - Google Patents
Projection welding nut locating device preventing current from dividing Download PDFInfo
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- CN201645106U CN201645106U CN2010201266705U CN201020126670U CN201645106U CN 201645106 U CN201645106 U CN 201645106U CN 2010201266705 U CN2010201266705 U CN 2010201266705U CN 201020126670 U CN201020126670 U CN 201020126670U CN 201645106 U CN201645106 U CN 201645106U
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- alignment pin
- electrode
- welding nut
- bottom electrode
- insulation sleeve
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Abstract
The utility model relates to a projection welding nut locating device preventing current from dividing. The utility model aims to solve the problems of the prior art that a projection welding nut locating pin is directly arranged in an electrode, so current can not be prevented from dividing through the channels of an upper electrode, a projection welding nut, a locating pin and a lower electrode, the welding quality of the projection welding nut is poor, the internal threads of the projection welding nut are melted, and the service life of the locating pin is short. In the utility model, an insulating sleeve is additionally arranged between a locating pin and an electrode, so current dividing channels are blocked. The adoption of the technical proposal can avoid current dividing phenomena between two electrodes, ensure projection welding nut welding quality and intact internal threads, reduce operator work intensity, improve operation efficiency, save power and reduce operation cost.
Description
Technical field
The utility model relates to a kind of positioner, and in particular, the utility model relates to a kind of project-welding nut positioner that is used for the anti-electric current shunting of mash welder.
Technical background
At present, automobile factory's project-welding nut positioner normally directly contacts the alignment pin in the project-welding nut with electrode, between two electrodes except that salient point, the split channel that also exists.As Patent Office of the People's Republic of China at disclosed a CN101480771A document on July 15th, 2009, document name is called " a kind of projection welding nut welding clamp ", the described a kind of projection welding nut welding clamp of document, comprise clamping fixture seat, clamp mechanism, upper clamping piece, lower clamping piece and position corresponding up and down on, lower lock block, lower clamping piece is fixed on the clamping fixture seat, the affixed lower clamping piece of lower lock block, lower lock block is provided with the nut alignment pin of coated insulation layer, upper clamping piece connects clamp mechanism, the affixed upper clamping piece of upper holder block, be provided with insulating trip between upper holder block and upper clamping piece, be provided with down insulating trip between lower lock block and lower clamping piece.This projection welding nut welding clamp, because have the electric current shunting, welding condition can not reach the parameter request of projection welding process stipulation fully when the pedestal conquassation, the weld strength of projection welding spot descends, and the sealing-off, the rosin joint that have vast scale, cause a large amount of doing over again, reprocess, not only reduced product quality, also increased operating personnel's workload, reduced production efficiency, also because electric current is shunted, and a large amount of electric currents is by the alignment pin loss, also frequent screw thread with project-welding nut burns out.
Summary of the invention
The utility model has solved and has had the problem of electric current by the alignment pin shunting in the prior art, and a kind of project-welding nut positioner of stopping electric current shunting between two electrodes is provided.
The utility model solves the in-problem technical scheme of prior art: a kind of project-welding nut positioner of anti-electric current shunting, it comprises top electrode, and bottom electrode is contained in the alignment pin in the bottom electrode, be contained in the spring below the alignment pin, establish insulation sleeve between described bottom electrode and the alignment pin.Establish the insulation sleeve that fabroil is made between bottom electrode and the alignment pin, make between bottom electrode and the alignment pin and insulate, the top electrode electric current can only flow to bottom electrode by pedestal, and can not pass through project-welding nut, the alignment pin shunting, when the pedestal conquassation, can reach the parameter request of projection welding process stipulation, thereby the welding quality that guarantees projection welding spot reaches the regulation requirement, reduce sealing-off, the generation of rosin joint phenomenon, raise labour productivity, reducing the operating personnel does over again, the workload of reprocessing, economize on electricity, save production cost, project-welding nut internal thread and alignment pin contact position no current can be stopped to burn the generation of melting phenomenon by not producing high temperature, thereby make the project-welding nut internal thread obtain the intact service life of saving from damage and prolonging alignment pin.
As preferably, described bottom electrode top is cylinder, the bottom electrode bottom is a screw thread, bottom electrode lower thread external diameter is less than bottom electrode top cylinder external diameter, cylinder upper end, bottom electrode top is round table-like, the second order through hole is established in bottom electrode axial centre position, and second order through hole top internal diameter is established insulation sleeve less than the bottom internal diameter in the second order through hole upper hole.Alignment pin is placed bottom electrode, make that the welding equipment positioner obtains simplifying; Cylinder upper end, bottom electrode top is round table-like, avoids the workpiece of damaging when the dress workpiece, and workpiece is shielded; Bottom electrode lower thread external diameter makes things convenient for installation, transposing and the screwed in place of bottom electrode less than bottom electrode top body diameter.
As preferably, described insulation sleeve is rounded, insulation sleeve and bottom electrode interference fit, and through hole is established in insulation sleeve axial centre position, insulation sleeve through hole and alignment pin matched in clearance, an annular protrusion is established in the insulation sleeve lower end.Alignment pin slides up and down when work, and insulation sleeve can be because of the slip loose or dislocation of alignment pin.
As preferably, described alignment pin is the second order bearing pin, alignment pin top external diameter is less than the alignment pin lower outer diameter, the curved shape round platform in alignment pin top, chamfer on the alignment pin bottom, an annular protrusion is established in lower end, alignment pin bottom, a spring axis of guide is arranged below the annular protrusion, spring axis of guide diameter is less than the internal diameter of spring, and the spring axis of guide is shorter in length than the length of spring.Project-welding nut is played the automatic guide location to alignment pin upper end curve-like round platform and protection project-welding nut internal thread is not damaged; an annular protrusion is established in the alignment pin lower end; under the effect of spring; the alignment pin rising stops when the alignment pin annular protrusion is run into insulation sleeve; the one spring axis of guide is arranged below the annular protrusion, the spring that is enclosed within spring axis of guide outside is played guiding, positioning action.
As preferably, described top electrode bottom is a cylinder, and top electrode top is screw thread, and the lower end of top electrode lower cylindrical is round table-like, and top electrode top major diameter of thread is less than the external diameter of top electrode bottom.The lower end of top electrode lower cylindrical is round table-like, avoids at dress top electrode project-welding nut of damaging during project-welding nut project-welding nut being shielded.Top electrode top major diameter of thread makes things convenient for installation, transposing and the screwed in place of top electrode less than the external diameter of top electrode bottom.
The beneficial effects of the utility model are: insulation sleeve is set between alignment pin and the bottom electrode has stopped two interelectrode electric current distributary phenomena, guarantee the intact of the welding quality of project-welding nut and internal thread, reduced operating personnel's labour intensity, improved operating efficiency, economize on electricity reduces operating cost.
Description of drawings
Fig. 1 is a kind of structural representation of the present utility model.
The specific embodiment
Below by specific embodiment, and the technical solution of the utility model is further described in detail in conjunction with Figure of description.
Embodiment: as shown in Figure 1, a kind of project-welding nut positioner of anti-electric current shunting, it comprises top electrode 1, bottom electrode 2, be contained in alignment pin 3 in the bottom electrode 2, be contained in insulation sleeve 4 between alignment pin 3 and the electrode 2, be contained in the spring 5 below the alignment pin 3.
Top electrode 1 is taken round copper rod, 5 * 45 ° of chamferings of head, the afterbody car goes out the external screw thread that the installation screwed hole with electrode welder matches, the major diameter of external thread of top electrode 1 is less than the external diameter of top electrode 1 columnar portion, bottom electrode 2 contour structures are with top electrode 1, top electrode 1, the columnar portion of bottom electrode 2 is relative, top electrode 1, bottom electrode 2 is arranged on the same straight line, two rank through holes are made in bottom electrode 2 central shaft positions, through hole top, 2 liang of rank of bottom electrode internal diameter is less than the bottom internal diameter, insulation sleeve 4 is cylindrical, tail end has annular protrusion, bottom electrode 2 top through holes and insulation sleeve 4 columnar portion interference fit, bottom electrode 2 lower through-hole diameters are greater than the annular protrusion diameter of insulation sleeve 4 lower ends, insulation sleeve 4 central shaft position cars go out through hole, the annular protrusion of insulation sleeve 4 lower ends, alignment pin 3 is the second order bearing pin, alignment pin 3 upper diameter are less than alignment pin 3 lower diameter, the curved shape round platform in alignment pin 3 tops, chamfer on alignment pin 3 bottoms, annular protrusion is established in lower end, alignment pin 3 bottom, car goes out the spring axis of guide of external diameter less than spring 5 internal diameters below the annular protrusion, the spring axis of guide is shorter in length than the length of spring, the through hole of insulation sleeve 4 and alignment pin 3 bearing pin lower cylindrical matched in clearance, the external diameter of the annular protrusion of insulation sleeve 4 lower ends is greater than alignment pin 3 lower end annular protrusion external diameters, the external diameter of spring 5 is less than the external diameter of alignment pin 3 lower end annular protrusions, and spring 5 is enclosed within on the spring axis of guide of alignment pin 3 afterbodys.
The operation principle of the project-welding nut positioner of anti-electric current shunting: in packing workpiece and pedestal in the middle of the bottom electrode 2 alignment pin towards the project-welding nut of workpiece, during welding, top electrode 1 presses down, until being pressed on the project-welding nut, alignment pin 3 compression springs 5 move down until alignment pin 3 upper surfaces and flush with the project-welding nut upper surface, the welding beginning, top electrode 1 electric current is by the salient point of project-welding nut and project-welding nut, welding work pieces flows to bottom electrode 2, the pedestal of project-welding nut temperature under the effect of electric current raises until the pedestal conquassation, the pad temperature continues to raise when reaching welding condition, bonding machine is cut off the electricity supply, the pad temperature descends, when the pad temperature drops to the regulation requirement, top electrode 1 rises, alignment pin 3 rises under the effect of spring 5, and alignment pin 3 risings stop when alignment pin 3 annular protrusions are run into insulation sleeve 4.Take out workpiece from alignment pin 3, the projection welding operation of project-welding nut is finished.
Above-described embodiment is a kind of preferred version of the present utility model, is not the utility model is done any pro forma restriction, also has other variant and remodeling under the prerequisite that does not exceed the technical scheme that claim puts down in writing.
The content that is not described in detail in this specification belongs to the those skilled in the art known prior art.
Claims (5)
1. the project-welding nut positioner of an anti-electric current shunting, it comprises top electrode (1), bottom electrode (2), be contained in the alignment pin (3) in the bottom electrode (2), be contained in the following spring (5) of alignment pin (3), it is characterized in that: establish insulation sleeve (4) between described bottom electrode (2) and the alignment pin (3).
2. the project-welding nut positioner of anti-electric current shunting according to claim 1, it is characterized in that: described bottom electrode (2) top is cylinder, bottom electrode (2) bottom is a screw thread, bottom electrode (2) lower thread external diameter is less than bottom electrode (2) top cylinder external diameter, cylinder upper end, bottom electrode (2) top is round table-like, the second order through hole is established in bottom electrode (2) axial centre position, and second order through hole top internal diameter is established insulation sleeve (4) less than the bottom internal diameter in the second order through hole upper hole.
3. the project-welding nut positioner of anti-electric current shunting according to claim 1 and 2, it is characterized in that: described insulation sleeve (4) is rounded, insulation sleeve (4) and bottom electrode (2) interference fit, through hole is established in insulation sleeve (4) axial centre position, insulation sleeve (4) through hole and alignment pin (3) matched in clearance, an annular protrusion is established in insulation sleeve (4) lower end.
4. the project-welding nut positioner of anti-electric current shunting according to claim 1 and 2, it is characterized in that: described alignment pin (3) is the second order bearing pin, alignment pin (3) top external diameter is less than alignment pin (3) lower outer diameter, the curved shape round platform in alignment pin (3) top, chamfer on alignment pin (3) bottom, an annular protrusion is established in alignment pin (3) lower end, bottom, the one spring axis of guide is arranged below the annular protrusion, spring axis of guide diameter is less than the internal diameter of spring (5), and the spring axis of guide is shorter in length than the length of spring.
5. the project-welding nut positioner of anti-electric current shunting according to claim 1 and 2, it is characterized in that: described top electrode (1) bottom is a cylinder, top electrode (1) top is screw thread, the lower end of top electrode (1) lower cylindrical is round table-like, and top electrode (1) top major diameter of thread is less than the external diameter of top electrode (1) bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201266705U CN201645106U (en) | 2010-03-10 | 2010-03-10 | Projection welding nut locating device preventing current from dividing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201266705U CN201645106U (en) | 2010-03-10 | 2010-03-10 | Projection welding nut locating device preventing current from dividing |
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| Publication Number | Publication Date |
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| CN201645106U true CN201645106U (en) | 2010-11-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010201266705U Expired - Fee Related CN201645106U (en) | 2010-03-10 | 2010-03-10 | Projection welding nut locating device preventing current from dividing |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102248271A (en) * | 2011-06-28 | 2011-11-23 | 重庆长安汽车股份有限公司 | Lower welding electrode of projection welding nut |
| CN103192193A (en) * | 2013-01-11 | 2013-07-10 | 浙江豪情汽车制造有限公司 | Follow-up compression projection welding electrode |
| CN103753075A (en) * | 2013-11-26 | 2014-04-30 | 四川蓝讯宝迩电子科技有限公司 | Welding device for positioning welding nut |
| CN104308352A (en) * | 2014-10-15 | 2015-01-28 | 南京理工大学 | Combined projection welding insulated dowel |
| CN104476067A (en) * | 2014-11-07 | 2015-04-01 | 重庆靖悦机械设备有限公司 | Bearing bush and cover positioning and welding device |
| CN104760002A (en) * | 2014-01-06 | 2015-07-08 | 海洋王（东莞）照明科技有限公司 | Locating tool |
| CN105190059A (en) * | 2013-07-22 | 2015-12-23 | 株式会社神户制钢所 | Rivet for connecting different materials, member for connecting different materials, method for manufacturing joined body of different materials, and joined body of different materials |
| CN107442323A (en) * | 2017-05-11 | 2017-12-08 | 高亚贵 | A kind of aluminium oxide ceramics roller positioning bushing device of flush coater auxiliary |
| CN107999948A (en) * | 2017-10-18 | 2018-05-08 | 上海兰盈机电设备有限公司 | Quiet side welding gun projection welding electrode nut detection structure in place |
| CN108705243A (en) * | 2018-07-10 | 2018-10-26 | 上汽通用五菱汽车股份有限公司 | Nut welds positioning tool between two parties |
| CN108723572A (en) * | 2018-07-20 | 2018-11-02 | 上海兰盈智能科技有限公司 | Top electrode fixes project-welding nut structure |
| CN109061739A (en) * | 2018-09-12 | 2018-12-21 | 成都众凯汽车零部件制造有限公司 | A kind of projection welder nut leakage proof detection device |
| CN114346393A (en) * | 2022-01-21 | 2022-04-15 | 东风汽车零部件(集团)有限公司通用铸锻分公司 | Nut projection welding compatible positioning pin and nut projection welding device |
-
2010
- 2010-03-10 CN CN2010201266705U patent/CN201645106U/en not_active Expired - Fee Related
Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102248271B (en) * | 2011-06-28 | 2013-03-27 | 重庆长安汽车股份有限公司 | Lower welding electrode of projection welding nut |
| CN102248271A (en) * | 2011-06-28 | 2011-11-23 | 重庆长安汽车股份有限公司 | Lower welding electrode of projection welding nut |
| CN103192193A (en) * | 2013-01-11 | 2013-07-10 | 浙江豪情汽车制造有限公司 | Follow-up compression projection welding electrode |
| CN103192193B (en) * | 2013-01-11 | 2015-04-08 | 浙江豪情汽车制造有限公司 | Follow-up compression projection welding electrode |
| CN105190059A (en) * | 2013-07-22 | 2015-12-23 | 株式会社神户制钢所 | Rivet for connecting different materials, member for connecting different materials, method for manufacturing joined body of different materials, and joined body of different materials |
| CN103753075A (en) * | 2013-11-26 | 2014-04-30 | 四川蓝讯宝迩电子科技有限公司 | Welding device for positioning welding nut |
| CN104760002B (en) * | 2014-01-06 | 2018-07-06 | 海洋王（东莞）照明科技有限公司 | Positioning tool |
| CN104760002A (en) * | 2014-01-06 | 2015-07-08 | 海洋王（东莞）照明科技有限公司 | Locating tool |
| CN104308352A (en) * | 2014-10-15 | 2015-01-28 | 南京理工大学 | Combined projection welding insulated dowel |
| CN104476067A (en) * | 2014-11-07 | 2015-04-01 | 重庆靖悦机械设备有限公司 | Bearing bush and cover positioning and welding device |
| CN107442323A (en) * | 2017-05-11 | 2017-12-08 | 高亚贵 | A kind of aluminium oxide ceramics roller positioning bushing device of flush coater auxiliary |
| CN107442323B (en) * | 2017-05-11 | 2020-09-29 | 诸暨市迅翔云科技有限公司 | Alumina ceramic roller positioning and sleeving device for auxiliary use of spraying machine |
| CN107999948A (en) * | 2017-10-18 | 2018-05-08 | 上海兰盈机电设备有限公司 | Quiet side welding gun projection welding electrode nut detection structure in place |
| CN108705243A (en) * | 2018-07-10 | 2018-10-26 | 上汽通用五菱汽车股份有限公司 | Nut welds positioning tool between two parties |
| CN108723572A (en) * | 2018-07-20 | 2018-11-02 | 上海兰盈智能科技有限公司 | Top electrode fixes project-welding nut structure |
| CN109061739A (en) * | 2018-09-12 | 2018-12-21 | 成都众凯汽车零部件制造有限公司 | A kind of projection welder nut leakage proof detection device |
| CN114346393A (en) * | 2022-01-21 | 2022-04-15 | 东风汽车零部件(集团)有限公司通用铸锻分公司 | Nut projection welding compatible positioning pin and nut projection welding device |
| CN114346393B (en) * | 2022-01-21 | 2023-09-12 | 东风汽车零部件(集团)有限公司通用铸锻分公司 | Nut projection welding compatibility locating pin and nut projection welding device |
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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: 20101124 Termination date: 20140310 |