CN100594305C - Tube-shaped valve type self-punching rivet - Google Patents
Tube-shaped valve type self-punching rivet Download PDFInfo
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- CN100594305C CN100594305C CN200810107030A CN200810107030A CN100594305C CN 100594305 C CN100594305 C CN 100594305C CN 200810107030 A CN200810107030 A CN 200810107030A CN 200810107030 A CN200810107030 A CN 200810107030A CN 100594305 C CN100594305 C CN 100594305C
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- shaped valve
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Abstract
The invention discloses a tubular split self-piercing rivet which comprises a rivet bar and is characterized in that the rivet bar is a hollow tubular structure, two ends of the rivet bar cavity are respectively opened with a trapezoidal chamfer angle the axial section of which is long in the outer edge and short in the inner edge or an arched chamfer angle, two side faces of the two ends of the rivet bar are respectively opened with one or more axial gaps. In the tubular split self-piercing rivet of the invention, a lower sheet metal is arranged on a lower die, the tubular split self-piercingrivet is arranged on the lower sheet metal, an upper sheet metal is arranged on the tubular split self-piercing rivet, a punching head is pressed on the upper sheet metal, and when moving downwards,the punching head pushes the tubular split self-piercing rivet to upwards penetrate into the upper sheet metal and downwards penetrate into the lower sheet metal; under the coaction of the punching head and the lower die, the upper and lower ends of the tubular split self-piercing rivet are opened in the upper and lower sheet metals to form a pipe socket so as to lock and stop the sheet metals, thus achieving the purpose of firm connection. The surfaces of the upper and lower sheet metals are smooth and flat after riveting by adopting the tubular split self-piercing rivet.
Description
Technical field
The present invention relates to the mechanical connection rivet, especially a kind of tube-shaped valve type self-punching rivet.
Background technique
Self-piercing riveting is a kind of high speed machine fastening that does not need pre-drilled to connect plate, can be used for riveting aluminium sheet, steel plate, also can be used for riveted joint between the different materials plate, even can be used for the riveted joint between nonmetal such as plastics.Compare with spot welding and to have following advantage: can be connected multilayer aluminium, coating sheet metal, reinforced plastics, composite material; Do not need pre-drilled; Endurance; Can with the naked eye intuitively observe when connecting quality inspection; , non-thermal radiation little, no-spark, no waste material, low energy consumption, low noise to environmetal impact; Can be compatible with oiling agent with tackiness agent.Just because of have these advantages, self-piercing riveting more and more comes into one's own and favors.But existing self-pierce riveting pin structure is divided into the head of a nail and nail bar two-part, and its deficiency is that the upper surface after the riveted joint has head of a nail vestige, lower surface unevenness, can not be used to rivet the smooth connection of surface requirements.
Summary of the invention
Purpose of the present invention just provides a kind of simple in structure, and can make the smooth smooth tube-shaped valve type self-punching rivet of upper and lower panel surface after the riveted joint.
Tube-shaped valve type self-punching rivet of the present invention, comprise the nail bar, being characterized in following closely bar is hollow tubular structure, and it is the outer length of side, short trapezoidal chamfering or the arc angling of inner edge that axial cross section is all opened at the two ends of nail bar cavity, all has one or more than one axial slits on the side, two ends of nail bar.
Tube-shaped valve type self-punching rivet of the present invention, following plate is placed on the counterdie, tube-shaped valve type self-punching rivet is placed on down on the plate, last plate is placed on the tube-shaped valve type self-punching rivet, drift is pressed in plate, drift moves downward, promoting tubulose split rivet upwards thrusts plate, thrusts down plate downwards, under the acting in conjunction of drift and counterdie, the upper/lower terminal of tube-shaped valve type self-punching rivet opens in last plate and following plate and forms horn mouth so that the locking plate reaches the purpose that is connected firmly.Adopt this tube-shaped valve type self-punching rivet, the upper and lower panel surface after the riveted joint is smooth smooth.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2 is the plan structure schematic representation of Fig. 1;
Fig. 3 uses the back view for the present invention.
Embodiment
A kind of tube-shaped valve type self-punching rivet, comprise nail bar 1, be characterized in following closely bar 1 and be hollow tubular structure, it is the outer length of side, short trapezoidal chamfering or the arc angling 3 of inner edge that the two ends of nail bar cavity 2 all have axial cross section, and the side, two ends of nail bar 1 all has one or more than one axial slits 4.
Claims (1)
1, a kind of tube-shaped valve type self-punching rivet, comprise nail bar (1), it is characterized in that: nail bar (1) is hollow tubular structure, it is the outer length of side that the two ends of nail bar cavity (2) all have axial cross section, trapezoidal chamfering or arc angling (3) that inner edge is short, the side, two ends of nail bar (1) all has one or more than one axial slits (4), during use, following plate is placed on the counterdie, tube-shaped valve type self-punching rivet is placed on down on the plate, last plate is placed on the tube-shaped valve type self-punching rivet, drift is pressed in plate, drift moves downward, promote tubulose split rivet and upwards thrust plate, thrust down plate downwards, under the acting in conjunction of drift and counterdie, on the tube-shaped valve type self-punching rivet, the formation horn mouth is opened so that the locking plate reaches the purpose that is connected firmly in following two ends in last plate and following plate, after the riveted joint on, following plate surfacing is smooth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810107030A CN100594305C (en) | 2008-08-26 | 2008-08-26 | Tube-shaped valve type self-punching rivet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810107030A CN100594305C (en) | 2008-08-26 | 2008-08-26 | Tube-shaped valve type self-punching rivet |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101344109A CN101344109A (en) | 2009-01-14 |
| CN100594305C true CN100594305C (en) | 2010-03-17 |
Family
ID=40246190
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200810107030A Active CN100594305C (en) | 2008-08-26 | 2008-08-26 | Tube-shaped valve type self-punching rivet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100594305C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112324780B (en) * | 2020-11-19 | 2022-04-26 | 陕西科技大学 | Combined tubular self-punching rivet and method for connecting plates based on same |
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2008
- 2008-08-26 CN CN200810107030A patent/CN100594305C/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN101344109A (en) | 2009-01-14 |
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| C14 | Grant of patent or utility model | ||
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