CN202531582U - Composite rivet - Google Patents
Composite rivet Download PDFInfo
- Publication number
- CN202531582U CN202531582U CN2012202091779U CN201220209177U CN202531582U CN 202531582 U CN202531582 U CN 202531582U CN 2012202091779 U CN2012202091779 U CN 2012202091779U CN 201220209177 U CN201220209177 U CN 201220209177U CN 202531582 U CN202531582 U CN 202531582U
- Authority
- CN
- China
- Prior art keywords
- hollow
- hollow cylinder
- layer
- round plate
- metal core
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Abstract
The utility model discloses a composite rivet which comprises a hollow cylinder and a hollow round plate which are connected in mounting mode. The hollow cylinder and the hollow round plate are both composed of a metal core layer and a plastic layer attached to the surface of the metal core layer. The plastic layer attached to the metal core layer can be one of the surfaces or a plurality of surfaces. The hollow cylinder and the hollow round plate have the same inner diameter, and the external diameter of the hollow round plate is larger than that of the hollow cylinder and the wall thickness of the hollow round plate is not larger than 0.25 millimeter. The hollow cylinder and the hollow round plate can be of an integrated structure. Through improvement of the prior art, the composite rivet can be widely used in the manufacturing field of multi-layer printed circuit board (PCB) boards, and enables the riveting machining and the pressing fit machining of the multi-layer PCB boards to be more accurate, guarantees accurate alignment between the multi-layer PCB boards, reduces metal fragments, interlayer foreign materials, inner layer short circuits and copper foil folds, prevents the steel plate from being damaged and improves good product rate.
Description
Technical field
The utility model relates to a kind of composite rivet, specifically a kind of composite rivet that is mainly used in the multi-layer PCB board working process.
Background technique
Fast development along with electronic technology; The circuit board level of integration is increasingly high, and the number of plies of circuit board is more and more, makes in the process of producing at multilayer circuit board; Need use rivet and circuit board carried out riveted is fixed and pressing and fixing, guarantee accurate contraposition in riveted processing and pressing course of working.The rivet that is used for now on the pcb board is brass rivet basically, when multi-layer PCB board is carried out riveted and pressing, occurs metal fragment easily; Internal layer short circuit or interlayer foreign matter appear; And because brass rivet has higher hardness and bigger wall thickness, more non-riveted zone, the riveted zone of PCB wants thicker, easily the assistant tool middle steel plate is caused damage; The rivet of protrusion hinders freely stretching of Copper Foil simultaneously, is easy to generate Copper Foil fold phenomenon.Be used to make multi-layer PCB board now and also have improved plastic cement rivet; Advantage is can not produce metal fragment, farthest same tool steel plate is not caused damage simultaneously, but existing plastic cement rivet is because the inherent strength of plastic cement is not enough; Easy deformation in to pcb board riveted and pressing; The inaccurate situation in location occurs, cause the interlayer dislocation, cause the poor effect of improving of product reject ratio.
Summary of the invention
The utility model will solve above-mentioned technical problem and provide a kind of composite rivet that is mainly used in the multi-layer PCB board manufacture process, makes interlayer alignment more accurate, reduces the internal layer short circuit, effectively improves rate of good product.
In order to solve the problems of the technologies described above, the utility model is taked following technological scheme:
A kind of composite rivet, the hollow cylinder of phase attaching and hollow disk constitute, and said hollow cylinder and hollow disk constitute by metal core layer and attached to the surperficial plastic layer of metal core layer.
Said hollow cylinder lower end is made as skewed.
Said hollow cylinder and the hollow disk structure that is formed in one.
The metal core layer of said hollow cylinder and hollow disk is that stainless steel material, copper product or aluminium material are processed.
The internal diameter of said hollow cylinder and hollow disk is identical, and the external diameter of hollow disk is greater than the external diameter of hollow cylinder.
The wall thickness of said hollow cylinder and hollow disk is less than or equal to 0.25mm.
A surface or a plurality of surface attachment plastic layer of the metal core layer of said hollow cylinder and hollow disk.
The rivet that the utility model discloses is double layer construction or multi-layer structure, and basic unit is a metal layer, and plastic layer is an auxiliary layer; Both guaranteed the bulk strength of rivet; Guarantee again in riveted and pressing multi-layer PCB board, effectively to reduce metal fragment, reduce interlayer foreign matter and internal layer short circuit, improved rate of good product; Reduce surface hardness, wall thickness and the increase self lubricity of rivet, help Copper Foil and freely stretch, not fragile middle steel plate in the time of pressing.In addition, because the hollow cylinder lower end is skewed, be similar to taper, have automatic aligning function, pcb board is difficult for misplacing when making riveted, and is stable and reliable for performance.
Description of drawings
Accompanying drawing 1 is the utility model cross-sectional view.
Embodiment
For the ease of those skilled in the art's understanding, the utility model is done further to describe below in conjunction with accompanying drawing.
Shown in accompanying drawing 1; The utility model has disclosed a kind of composite rivet with double layer construction or multi-layer structure; The hollow cylinder 2 and hollow disk 1 that comprise the phase attaching, said hollow cylinder 2 constitutes by parent metal sandwich layer 4 with attached to metal core layer 4 surperficial plastic layers 3 with hollow disk 1.The lower end of cylindrical body 2 is made as skewed, makes its tapered shape, is convenient to plug-in mounting and aims at, and it is more accurate to locate.For the ease of processing, hollow cylinder 2 and hollow disk 1 structure that is formed in one.In addition, hollow cylinder 2 is preferably stainless steel material with hollow disk 1 interior metal core layer 4 and processes, and certainly, also can be processed by copper product or aluminium material, does not limit at this.Hollow cylinder 2 has identical internal diameter with hollow disk 1; The external diameter of hollow disk 1 is greater than the external diameter of hollow cylinder 2; The wall thickness of hollow cylinder 2 and hollow disk 1 is less than or equal to 0.25mm, and promptly the wall thickness of hollow cylinder 2 and hollow disk 1 is not more than 0.25mm.Plastic layer can also can adhere to setting at the outer surface of whole metal core layer attached to a surface of metal core layer.
The rivet of the utility model is double layer construction or multi-layer structure, and basic unit is a metal core layer, and auxiliary layer is a plastic layer; Basic unit's principal security riveted intensity and pcb board interlayer alignment precision, outer field plastic layer is coating the inner layer metal sandwich layer fully, and the toughness and the resiliency of appropriateness is provided for whole rivet; Reduce part surface hardness; Reduce metal fragment, reduce interlayer foreign matter and internal layer short circuit, improved rate of good product.In addition; Metal core layer adopts the stainless steel of thinner thickness, and wall thickness has only the half the of conventional rivets, and plastic layer provides enough self lubricities; In to the processing of pcb board riveted; Help Copper Foil and between prepreg and steel plate, freely extend, reduce the generation probability of copper face fold, also can reduce damage middle steel plate.
The above is not to be the qualification to the utility model, and under the prerequisite of the inventive concept that does not break away from the utility model, any conspicuous replacement is all within the utility model protection domain.
Claims (6)
1. composite rivet comprises it is characterized in that the hollow cylinder (2) and the hollow disk (1) of phase attaching: said hollow cylinder and hollow disk constitute by metal core layer (4) with attached to the plastic layer (3) on metal core layer surface.
2. composite rivet according to claim 1 is characterized in that: said hollow cylinder lower end is made as skewed.
3. composite rivet according to claim 1 and 2 is characterized in that: said hollow cylinder and the hollow disk structure that is formed in one.
4. composite rivet according to claim 3 is characterized in that: the metal core layer of said hollow cylinder and hollow disk is that stainless steel material, copper product or aluminium material are processed.
5. composite rivet according to claim 4 is characterized in that: said hollow cylinder has identical internal diameter with hollow disk, and the external diameter of disk is greater than cylindrical external diameter.
6. composite rivet according to claim 5 is characterized in that: the wall thickness of said hollow cylinder and hollow disk is less than or equal to 0.25mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202091779U CN202531582U (en) | 2012-05-11 | 2012-05-11 | Composite rivet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202091779U CN202531582U (en) | 2012-05-11 | 2012-05-11 | Composite rivet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202531582U true CN202531582U (en) | 2012-11-14 |
Family
ID=47132771
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012202091779U Expired - Fee Related CN202531582U (en) | 2012-05-11 | 2012-05-11 | Composite rivet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202531582U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103498847A (en) * | 2013-10-10 | 2014-01-08 | 苏州工业职业技术学院 | Locating pin used for riveting assembly machine |
| CN104741501A (en) * | 2015-03-30 | 2015-07-01 | 上海应用技术学院 | Draw-in type semi-hollow self-piercing riveting rivet device |
-
2012
- 2012-05-11 CN CN2012202091779U patent/CN202531582U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103498847A (en) * | 2013-10-10 | 2014-01-08 | 苏州工业职业技术学院 | Locating pin used for riveting assembly machine |
| CN103498847B (en) * | 2013-10-10 | 2016-05-11 | 苏州工业职业技术学院 | For the alignment pin of riveting assembly machine |
| CN104741501A (en) * | 2015-03-30 | 2015-07-01 | 上海应用技术学院 | Draw-in type semi-hollow self-piercing riveting rivet device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Sihui Fuji Electronics Technology Co.,Ltd. Assignor: Wang Aijun Contract record no.: 2013440000039 Denomination of utility model: Composite rivet Granted publication date: 20121114 License type: Exclusive License Record date: 20130121 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| ASS | Succession or assignment of patent right |
Owner name: SIHUI FUJI ELECTRONIC TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: WANG AIJUN Effective date: 20141211 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 523000 DONGGUAN, GUANGDONG PROVINCE TO: 526200 ZHAOQING, GUANGDONG PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20141211 Address after: 526200 Guangdong Province Sihui Sihui City under Mao Zhen electronic industrial base No. 3 Patentee after: Sihui Fuji Electronics Technology Co.,Ltd. Address before: Wanjiang Sunshine Coast 523000 Guangdong city in Dongguan province 21 building 901 unit Patentee before: Wang Aijun |
|
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 526200 Sihui Electronics Industry Base No. 3, Xiamen Town, Sihui City, Zhaoqing City, Guangdong Province Patentee after: Sihui Fu Shi electronic Polytron Technologies Inc Address before: 526200 Sihui Electronics Industry Base No. 3, Xiamen Town, Sihui City, Guangdong Province Patentee before: Sihui Fuji Electronics Technology 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: 20121114 Termination date: 20190511 |