CN103307081A - Combined nut and projection welding method thereof - Google Patents
Combined nut and projection welding method thereof Download PDFInfo
- Publication number
- CN103307081A CN103307081A CN2013102585458A CN201310258545A CN103307081A CN 103307081 A CN103307081 A CN 103307081A CN 2013102585458 A CN2013102585458 A CN 2013102585458A CN 201310258545 A CN201310258545 A CN 201310258545A CN 103307081 A CN103307081 A CN 103307081A
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- nut
- screw rod
- connecting rod
- contact plate
- assembled
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Abstract
The invention relates to a combined nut and a projection welding method thereof. A screw and a nut of the combined nut are tightly fit with a contact plate through a smooth plate, so that the connection relationship is stable; the gap is small, so paint does not permeate into the gap when the outer surface of the combined nut is subjected to electrophoretic painting; when the combined nut is applied to a grounding line, the electrical conductivity is high; melting projection welding is performed by electrifying an electrode, so the welding positions are dispersed uniformly; the welded surface gap is smaller through pressurizing compaction.
Description
Technical field
The present invention relates to assembled nut and projection welding method thereof, this projection welding method can make between the nut of assembled nut and the bolt and not have the gap.
Background technique
The application of assembled nut is very wide, being used for the dead earth line is a kind of application preferably, when being used for ground wire, and usually will be at the appearance japanning of assembled nut, the mode that the electrophoresis japanning is often adopted, but in the process of electrophoresis japanning, avoid coating with lacquer in the gap that infilters nut and bolt, because when the dead earth line, guaranteeing between nut and the bolt can normal transmission, enamelled coating is isolation layer, cause easily non-conductive, the influence conduction of connecting wires.The manufacture method of traditional assembled nut is the method for stud welding, bolt is fixed with sheet material earlier, control torsion with torque spanner again, nut is screwed on the bolt, torsion control can only be rule of thumb, be not easy control, big will cause Song Bukai, and can be gapped between nut and the bolt, during the electrophoresis japanning, lacquer penetrates in the gap easily, causes ground wire non-conductive; Bolt and assembled nut surface may out of plumb cause rosin joint.
Summary of the invention
In order to solve the problem of above-mentioned existence, the invention discloses a kind of assembled nut and projection welding method thereof, the assembled nut that this projection welding method is made, the fixing of nut and bolt do not need with torque spanner nut to be screwed on the bolt, and be very close to each other between nut and the bolt, in the electrophoresis japanning process, the contact surface of nut and bolt, do not have lacquer, be used for connecting ground wire, electric conductivity is good.
Assembled nut, comprise screw rod and nut, the top of screw rod is the nut of regular hexagon cylinder, nut is provided with circular smooth plate towards the screw rod side surface, nut and nut contacting side are circular contact plate, the contact plate rear end is provided with the regular hexagon post, is the cylinder connecting rod between contact plate and the regular hexagon post, and the other end of screw rod extends to the outside of nut.
Described contact plate, regular hexagon post and cylinder connecting rod are the integral body of same material injection moulding, and smooth plate, nut and screw rod are the integral body of same material injection moulding.
The front end of described screw rod and fixed by nut, the front end of screw rod is for being provided with externally threaded cylinder connecting rod bar, and rear end cylinder connecting rod bar radius gradual change is little, forms another transition connecting rod, and the end of transition connecting rod is the slope section.
Described nut is fixed on the cylinder connecting rod bar of screw front end, and the transition connecting rod extends in the nut outside.
The outer surface of described screw rod, nut and nut is coated with enamelled coating.
Make the method for this assembled nut, may further comprise the steps,
(1) be provided with projection more than 2 at smooth plate and contact plate surface, projection is evenly disperseed, and the projection on smooth plate and contact plate surface staggers, and avoids vertical contact;
(2) be provided with projection in screw surface;
(3) nut is fixed on the screw rod, and smooth plate contacts with contact plate;
(4) at the outside, top of nut and the outside, the top fixed electrode of regular hexagon post, and pressurization simultaneously, the line of two end electrodes is parallel with screw rod;
(5) electrode is switched on simultaneously, melts fully up to projection, and the pressure of pressurization compresses smooth plate and contact plate, does not have the slit, and screw rod is fixedlyed connected with the projection that nut also is melted;
(6) with the assembled nut crash handling of step (5) gained more than 5 hours;
(7) assembled nut with step (6) gained is placed on electrophoresis japanning in the tiselius apparatus, forms enamelled coating up to the assembled nut surface.
This assembled nut, annexation is fixed, and smooth plate is connected closely with contact plate, does not have the slit, does not coat with lacquer, and when connecting ground wire, good conductivity, manufacture method are simple relatively, are convenient to operation, can be widely used in industrial production.
Description of drawings
Fig. 1 is structural representation of the present invention,
Reference numerals list: 1-nut, 2-smooth plate, 3-contact plate, 4-cylinder connecting rod, 5-regular hexagon post, 6-screw rod, 7-transition connecting rod, 8-slope section, 9-nut.
Embodiment
Below in conjunction with the drawings and specific embodiments, further illustrate the present invention.Should understand following embodiment only is used for explanation the present invention and is not used in and limits the scope of the invention.Need to prove, word " preceding ", " back ", " left side ", " right side ", the "up" and "down" used are described below refer to the direction in the accompanying drawing, word " interior " and " outward " refer to respectively towards or away from the direction of specific features geometrical center.
By reference to the accompanying drawings as seen, this assembled nut, comprise screw rod 6 and nut 9, the top of screw rod 6 is the nut 1 of regular hexagon cylinder, nut 1 is provided with circular smooth plate 2 towards screw rod 6 side surfaces, and nut 9 is the contact plate 3 of circle with nut 1 contacting side, and contact plate 3 rear ends are provided with regular hexagon post 5, be cylinder connecting rod 4 between contact plate 3 and the regular hexagon post 5, the other end of screw rod 6 extends to the outside of nut 9.The present invention, nut 9 is fixed on the screw rod 6, and nut 9 fits tightly with the nut 1 of screw rod 6 ends, on the applying surface of contact, contact plate 3 is arranged on the nut 9, smooth plate 2 is arranged on the nut, and contact plate 3 contacts applying with smooth plate 2, fits to such an extent that do not have a slit, when the electrophoresis japanning, can not infilter lacquer on the faying surface, when connecting ground wire, electric conductivity preferably can be arranged, nut 1 uses spanner to fix for the regular hexagon cylinder is convenient, regular hexagon post 5 also convenient wrench is fixed, and the two ends spanner cooperates, the direction rotation, perhaps one static, a rotation, rotation are unscrewed or when tightening, and be firmly convenient.
Described contact plate 3, regular hexagon post 5 and cylinder connecting rod 4 are the integral body of same material injection moulding, and smooth plate 2, nut 1 and screw rod 6 are the integral body of same material injection moulding.Same material injection moulding integral body is without any the gap, during the electrophoresis japanning, can seepage, and structural stability, be not easy to damage.
The front end of described screw rod 6 and nut 1 are fixing, and the front end of screw rod 6 is for being provided with externally threaded cylinder connecting rod 4, and cylinder connecting rod 4 radius gradual changes in rear end are little, form another transition connecting rod 7, and the end of transition connecting rod 7 is slope section 8.Transition connecting rod 7 and slope section 8 are not only the saving material, simultaneously, structural stability, survivability is strong.
Described nut 9 is fixed on the cylinder connecting rod 4 of screw rod 6 front ends, and transition connecting rod 7 extends in nut 9 outsides.Nut 9 is positioned on the bigger cylinder connecting rod bar 4 of diameter fully, and nut 9 connects stable.
The outer surface of described screw rod 6, nut 1 and nut 9 is coated with enamelled coating.Enamelled coating can prevent effectively that at the outer surface of screw rod and nut screw rod 6 and nut 9 from getting rusty.
Make the method for this assembled nut, may further comprise the steps,
(1) be provided with projection more than 2 at smooth plate and contact plate surface, projection is evenly disperseed, and the projection on smooth plate and contact plate surface staggers, and avoids vertical contact;
(2) be provided with projection in screw surface;
(3) nut is fixed on the screw rod, and smooth plate contacts with contact plate;
(4) at the outside, top of nut and the outside, the top fixed electrode of regular hexagon post, and pressurization simultaneously, the line of two end electrodes is parallel with screw rod;
(5) electrode is switched on simultaneously, melts fully up to projection, and the pressure of pressurization compresses smooth plate and contact plate, does not have the slit, and screw rod is fixedlyed connected with the projection that nut also is melted.
(6) with the assembled nut crash handling of step (5) gained more than 5 hours;
(7) assembled nut with step (6) gained is placed on electrophoresis japanning in the tiselius apparatus, forms enamelled coating up to the assembled nut surface.
The disclosed technological means of the present invention program is not limited only to the disclosed technological means of above-mentioned technological means, also comprises the technological scheme of being made up of above technical characteristics combination in any.
Claims (6)
1. assembled nut, it is characterized in that comprising screw rod and nut, the top of screw rod is the nut of regular hexagon cylinder, nut is provided with circular smooth plate towards the screw rod side surface, nut and nut contacting side are circular contact plate, the contact plate rear end is provided with the regular hexagon post, is the cylinder connecting rod between contact plate and the regular hexagon post, and the other end of screw rod extends to the outside of nut.
2. assembled nut according to claim 1 is characterized in that described contact plate, regular hexagon post and cylinder connecting rod are the integral body of same material injection moulding, and smooth plate, nut and screw rod are the integral body of same material injection moulding.
3. assembled nut according to claim 1, the front end and the fixed by nut that it is characterized in that described screw rod, the front end of screw rod is for being provided with externally threaded cylinder connecting rod bar, and rear end cylinder connecting rod bar radius gradual change is little, form another transition connecting rod, the end of transition connecting rod is the slope section.
4. assembled nut according to claim 3 is characterized in that described nut is fixed on the cylinder connecting rod bar of screw front end, and the transition connecting rod extends in the nut outside.
5. according to the described assembled nut of claim 1-4, it is characterized in that the outer surface of described screw rod, nut and nut is coated with enamelled coating.
6. make the method for the described assembled nut of claim 5, it is characterized in that, may further comprise the steps,
(1) be provided with projection more than 2 at smooth plate and contact plate surface, projection is evenly disperseed, and the projection on smooth plate and contact plate surface staggers, and avoids vertical contact;
(2) be provided with projection in screw surface;
(3) nut is fixed on the screw rod, and smooth plate contacts with contact plate;
(4) at the outside, top of nut and the outside, the top fixed electrode of regular hexagon post, and pressurization simultaneously, the line of two end electrodes is parallel with screw rod;
(5) electrode is switched on simultaneously, melts fully up to projection, and the pressure of pressurization compresses smooth plate and contact plate, does not have the slit, and screw rod is fixedlyed connected with the projection that nut also is melted;
(6) with the assembled nut crash handling of step (5) gained more than 5 hours;
(7) assembled nut with step (6) gained is placed on electrophoresis japanning in the tiselius apparatus, forms enamelled coating up to the assembled nut surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310258545.8A CN103307081B (en) | 2013-06-26 | 2013-06-26 | Assembled nut and projection welding method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310258545.8A CN103307081B (en) | 2013-06-26 | 2013-06-26 | Assembled nut and projection welding method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103307081A true CN103307081A (en) | 2013-09-18 |
| CN103307081B CN103307081B (en) | 2015-09-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310258545.8A Active CN103307081B (en) | 2013-06-26 | 2013-06-26 | Assembled nut and projection welding method thereof |
Country Status (1)
| Country | Link |
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| CN (1) | CN103307081B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105552690A (en) * | 2015-12-15 | 2016-05-04 | 北京福田戴姆勒汽车有限公司 | Negative ground bolt installation method for vehicle body in white and vehicle |
| CN105626652A (en) * | 2016-01-15 | 2016-06-01 | 浙江吉利控股集团有限公司 | Electrophoresis leakage preventing bolt |
| CN107624405A (en) * | 2016-07-18 | 2018-01-26 | 天津市天龙得冷成型部件有限公司 | Garden shear scissors shaft with electrophoretic coating |
| CN107624406A (en) * | 2016-07-18 | 2018-01-26 | 天津市天龙得冷成型部件有限公司 | Garden shear |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1060807A (en) * | 1990-10-19 | 1992-05-06 | 青山好高 | Projection welding method and device thereof |
| EP0641944A1 (en) * | 1993-09-08 | 1995-03-08 | Emhart Inc. | Grounding stud/nut |
| US5487685A (en) * | 1991-06-28 | 1996-01-30 | Ab Volvo | Electrical contract nut |
| FR2723769A1 (en) * | 1994-08-19 | 1996-02-23 | Emhart Inc | Welded stud-bolt, for use e.g. in motor vehicle assembly |
| US5644830A (en) * | 1981-01-28 | 1997-07-08 | Multifastener Corporation | Method of forming electrical connection |
| US20040062622A1 (en) * | 2001-01-10 | 2004-04-01 | Harald Schaty | Electrical capped contact stud and method of fastening an electrical contact |
| US20040259431A1 (en) * | 2001-02-20 | 2004-12-23 | Delcourt Mark H. | Grounding stud |
| CN202520753U (en) * | 2012-01-18 | 2012-11-07 | 广州汽车集团股份有限公司 | Lock nut |
| CN202597413U (en) * | 2012-05-16 | 2012-12-12 | 浙江宏星紧固件有限公司 | Welding pressure-proof and anti-thread-off bolt |
-
2013
- 2013-06-26 CN CN201310258545.8A patent/CN103307081B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5644830A (en) * | 1981-01-28 | 1997-07-08 | Multifastener Corporation | Method of forming electrical connection |
| CN1060807A (en) * | 1990-10-19 | 1992-05-06 | 青山好高 | Projection welding method and device thereof |
| US5487685A (en) * | 1991-06-28 | 1996-01-30 | Ab Volvo | Electrical contract nut |
| EP0641944A1 (en) * | 1993-09-08 | 1995-03-08 | Emhart Inc. | Grounding stud/nut |
| FR2723769A1 (en) * | 1994-08-19 | 1996-02-23 | Emhart Inc | Welded stud-bolt, for use e.g. in motor vehicle assembly |
| US20040062622A1 (en) * | 2001-01-10 | 2004-04-01 | Harald Schaty | Electrical capped contact stud and method of fastening an electrical contact |
| US20040259431A1 (en) * | 2001-02-20 | 2004-12-23 | Delcourt Mark H. | Grounding stud |
| CN202520753U (en) * | 2012-01-18 | 2012-11-07 | 广州汽车集团股份有限公司 | Lock nut |
| CN202597413U (en) * | 2012-05-16 | 2012-12-12 | 浙江宏星紧固件有限公司 | Welding pressure-proof and anti-thread-off bolt |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105552690A (en) * | 2015-12-15 | 2016-05-04 | 北京福田戴姆勒汽车有限公司 | Negative ground bolt installation method for vehicle body in white and vehicle |
| CN105626652A (en) * | 2016-01-15 | 2016-06-01 | 浙江吉利控股集团有限公司 | Electrophoresis leakage preventing bolt |
| CN107624405A (en) * | 2016-07-18 | 2018-01-26 | 天津市天龙得冷成型部件有限公司 | Garden shear scissors shaft with electrophoretic coating |
| CN107624406A (en) * | 2016-07-18 | 2018-01-26 | 天津市天龙得冷成型部件有限公司 | Garden shear |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103307081B (en) | 2015-09-30 |
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Address after: No.33 Zhongzhou Road, Jingjiang Economic Development Zone, Jingjiang City, Taizhou City, Jiangsu Province Patentee after: Xincheng Automobile Industry Co., Ltd Address before: Jingjiang City Zhongzhou Road 214500 Jiangsu city of Taizhou province No. 33 Patentee before: JINJIANG XINCHENG VEHICLE PARTS Co.,Ltd. |
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| CP03 | Change of name, title or address |