CN210272702U - Bonding device for self-tapping bolt and threadless welding nut - Google Patents
Bonding device for self-tapping bolt and threadless welding nut Download PDFInfo
- Publication number
- CN210272702U CN210272702U CN201921615433.2U CN201921615433U CN210272702U CN 210272702 U CN210272702 U CN 210272702U CN 201921615433 U CN201921615433 U CN 201921615433U CN 210272702 U CN210272702 U CN 210272702U
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- self
- nut
- bolt
- tapping bolt
- tapping
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Abstract
The utility model discloses a self tapping bolt and no screw thread welded nut's bonding device relates to mechanical connecting piece technical field. The method comprises the following steps: the self-tapping bolt, the nut and the bonding annular terminal, wherein the nut is unthreaded; the self-tapping bolt comprises a bolt head, a connecting column is fixedly connected to one side of the screw head, a self-tapping bolt column is fixedly connected to one side, away from the screw head, of the connecting column, thread teeth are arranged on the surface of the self-tapping bolt column, a pointed end portion is arranged on one side, away from the connecting column, of the self-tapping bolt column, the pointed end portion is in a triangular column shape, and the outer diameter of the pointed end portion is gradually reduced from the upper end; the bonding annular terminal is fixed by a self-tapping bolt and a nut welded on a hole of the white vehicle body. The utility model discloses can remove the lacquer and can guarantee the zero clearance between bolt and the nut again, guarantee that bonding is reliable for a long time.
Description
Technical Field
The utility model relates to a mechanical connecting piece technical field, concretely relates to self tapping bolt and no thread welded nut's bonding device.
Background
With the development of intellectualization and networking of the automobile industry, a large number of control modules are added, and a bonding device is needed to ensure the stable operation of the whole automobile circuit and each control module. The grounding is a part of a circuit loop, most of the existing automobile electrical appliances are analog signals with digital models and high precision in normal operation, if a grounding fault occurs, the fault is equivalent to connecting a resistor in series in the circuit, and the high-precision signals can be distorted, so that the requirement can be met only by a very good grounding. The conventional bonding uses a threaded nut, and a paint removing procedure is required to be added in the assembling process, so that the production efficiency is reduced; in addition, a nut with threads is used for bonding, gaps exist between the bolt and the nut, electric arcs can be generated between the gaps under the condition of overlarge current, electric corrosion can be generated between the bolt and the nut for a long time, contact resistance is increased, transmission signal distortion is caused, and a vehicle cannot normally run.
Disclosure of Invention
The utility model aims at providing a connection clearance does not produce electric arc, guarantees the bonding device of a self tapping bolt and no screw thread welded nut that transmission signal can not distort.
The utility model discloses a: the self-tapping bolt, the nut and the bonding annular terminal, wherein the nut is unthreaded; the self-tapping bolt comprises a bolt head, a connecting column is fixedly connected to one side of the screw head, a self-tapping bolt column is fixedly connected to one side, away from the screw head, of the connecting column, thread teeth are arranged on the surface of the self-tapping bolt column, a pointed end portion is arranged on one side, away from the connecting column, of the self-tapping bolt column, the pointed end portion is in a triangular column shape, and the outer diameter of the pointed end portion is gradually reduced from the upper end; the bonding annular terminal is fixed by a self-tapping bolt and a nut welded on a hole of the white vehicle body.
The bolt head of the self-tapping bolt is a hexagonal nut, and a flange surface is arranged below the hexagonal nut.
The nut is a hexagonal nut, and a flange surface is arranged on one side of the nut.
When the annular terminal of bonding is assembled, the nut welding uses the electric gun fastening self tapping bolt on white automobile body hole, and the annular terminal of bonding is fixed from the tapping to the bolt, at the bolt from the tapping in-process, both got rid of the paint on the nut and can guarantee bolt and nut in close contact with again, and bonding piece area hook card plays in the hole simultaneously and prevents changeing the effect.
Compared with the prior art, the utility model has the advantages that:
the utility model discloses can be when the annular terminal of assembly bonding, the nut welding uses self-tapping bolt to tie up on the automobile body hole, can remove the lacquer and can guarantee again that zero clearance between bolt and the nut guarantees that the bonding is reliable for a long time. Under the condition of overlarge current, electric arc cannot be generated, so that electric corrosion cannot be generated between the bolt and the nut, contact resistance is not increased, transmission signals cannot be distorted, and the vehicle can normally run.
Drawings
The present invention will be further explained with reference to the drawings and examples.
Fig. 1 is a schematic view of the installation structure of the present invention.
In the figure: 1, a self-tapping bolt; 2. a nut; 11. a screw head; 12. connecting columns; 13. a self-tapping bolt column; 14. thread teeth; 15. a tip portion; 111. a flange face; 21. a flange face; 3. a ground annular terminal; 4. a vehicle body.
Detailed Description
As shown in the figure, the utility model discloses a: the self-tapping bolt comprises a self-tapping bolt 1, a nut 2 and a bonding annular terminal 3, wherein the nut 2 is unthreaded; the self-tapping bolt 1 comprises a bolt head 11 and a connecting column 12 fixedly connected to one side of the screw head 11, a self-tapping bolt column 13 fixedly connected to one side of the connecting column 12, which is far away from the screw head 11, a thread 14 is arranged on the surface of the self-tapping bolt column 13, a tip 15 is arranged on one side of the self-tapping bolt column 13, which is far away from the connecting column 12, the tip 15 is triangular column-shaped, and the outer diameter is gradually reduced from the upper end to the lower end; (ii) a The bonding annular terminal 3 is fixed by a self-tapping bolt 1 and a nut 2 welded on a white vehicle body hole.
The bolt head 11 of the self-tapping bolt 1 is a hexagonal nut, and a flange surface 111 is provided below the hexagonal nut.
The nut 2 is a hexagonal nut and has a flange surface 21 on one side.
In order to guarantee the reliability of bonding, the utility model provides a self tapping bolt and no screw thread welding nut, self tapping bolt pointed end become three horn shapes, have self tapping effect, and 2 welding of nut are on white automobile body Ø 7 holes, when the annular terminal of bonding of assembly, use self tapping bolt to tighten, can remove the lacquer can guarantee again that there is no clearance between bolt and the nut, guarantee that bonding is reliable for a long time.
Claims (3)
1. A bonding device for a self-tapping bolt and a threadless welding nut is characterized by comprising the self-tapping bolt, a nut and a bonding annular terminal, wherein the nut is threadless; the self-tapping bolt comprises a bolt head, a connecting column is fixedly connected to one side of the screw head, a self-tapping bolt column is fixedly connected to one side, away from the screw head, of the connecting column, thread teeth are arranged on the surface of the self-tapping bolt column, a pointed end portion is arranged on one side, away from the connecting column, of the self-tapping bolt column, the pointed end portion is in a triangular column shape, and the outer diameter of the pointed end portion is gradually reduced from the upper end; the bonding annular terminal is fixed by a self-tapping bolt and a nut welded on a hole of the white vehicle body.
2. A bonding apparatus for a self-tapping screw and a welding nut without screw thread as defined in claim 1, wherein a head of said self-tapping screw is a hexagonal nut, and a flange face is provided below said hexagonal nut.
3. A tapping screw and threadless weld nut bonding apparatus as claimed in claim 1 or 2, wherein the nut is a hexagonal nut and is provided with a flange face on one side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921615433.2U CN210272702U (en) | 2019-09-26 | 2019-09-26 | Bonding device for self-tapping bolt and threadless welding nut |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921615433.2U CN210272702U (en) | 2019-09-26 | 2019-09-26 | Bonding device for self-tapping bolt and threadless welding nut |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210272702U true CN210272702U (en) | 2020-04-07 |
Family
ID=70019730
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921615433.2U Expired - Fee Related CN210272702U (en) | 2019-09-26 | 2019-09-26 | Bonding device for self-tapping bolt and threadless welding nut |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210272702U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20220094082A1 (en) * | 2020-09-24 | 2022-03-24 | Ford Global Technologies, Llc | Grounding block and grounding method for electrified vehicle traction battery |
-
2019
- 2019-09-26 CN CN201921615433.2U patent/CN210272702U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20220094082A1 (en) * | 2020-09-24 | 2022-03-24 | Ford Global Technologies, Llc | Grounding block and grounding method for electrified vehicle traction battery |
| US11652304B2 (en) * | 2020-09-24 | 2023-05-16 | Ford Global Technologies, Llc | Grounding block and grounding method for electrified vehicle traction battery |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20201120 Address after: 330001 No. 509 North Avenue, Yingbin Road, Jiangxi, Nanchang Patentee after: JIANGLING MOTORS Co.,Ltd. Address before: 030032 No.5, Huazhang street, Tanghuai Park, Taiyuan comprehensive reform demonstration zone, Xiaodian District, Taiyuan City, Shanxi Province Patentee before: JMC HEAVY DUTY VEHICLE Co.,Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200407 |