CN87107110A - Aluminium sheet is from the riveting joining method - Google Patents
Aluminium sheet is from the riveting joining method Download PDFInfo
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- CN87107110A CN87107110A CN87107110.XA CN87107110A CN87107110A CN 87107110 A CN87107110 A CN 87107110A CN 87107110 A CN87107110 A CN 87107110A CN 87107110 A CN87107110 A CN 87107110A
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- aluminium sheet
- riveting
- rivet
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- stretch
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Abstract
The invention provides the method that a kind of aluminium sheet connects from riveting, it is characterized in that utilizing the pressure of oil hydraulic press, by punch to two-layer aluminium sheet pull and stretch simultaneously, extruding downwards again when aluminium sheet touches die, when making bottom aluminium sheet attenuation, the upper strata aluminium sheet is clamp-oned in the stretch section of lower floor's aluminium sheet, two-layer aluminium sheet is riveted together.Adopt the present invention to rivet aluminium sheet, can save rivet, reduced production process, do not stay perforation again, therefore make the present invention have that cost is low, efficient is high, easily realize advantages such as mechanization production and anti-spray performance are good.
Description
The present invention introduces a kind of aluminium sheet joining method, particularly a kind of do not need rivet from the riveting joining method.
For two-layer aluminium sheet is linked together, often adopt in the prior art with the clinching method of rivet (comprise and use conventional rivets, self-plugging rivet and Insert Nut etc.) as connected body.Though this joining method connects firmly, needs rivet and manual operations, the cost height, operation is many, is difficult for realizing mechanization production.In addition, also have employing as shown in Figure 1 with the punching simultaneously of two-layer aluminium sheet, pull and stretch, again flange fastening joining method and as shown in Figure 2 with the punching of one deck aluminium sheet, pull and stretch, overlap the aluminium sheet that last layer has dashed the hole in advance, the fastening joining method of flange then again.These two kinds of joining methods can realize that without the purpose of rivet from connection operation is many to influence outward appearance and the anti-shortcomings such as perforation that spray performance with leaving but also exist.
The objective of the invention is to overcome the deficiency of above-mentioned aluminium sheet joining method, provide a kind of without rivet, operation is not simply bored a hole formula from the riveting joining method.
Method of the present invention be to use a table oil press and one the cover by punch and die form from the riveting coupling mold, utilize the pressure promotion punch of oil hydraulic press to move downward, make two-layer aluminium sheet pull and stretch simultaneously, when aluminium sheet touches the die bottom, punch pushes to aluminium sheet again, make bottom aluminium sheet attenuation, meanwhile, the metal that is extruded is subjected to mould to limit inevitable motion around the die bottom, its result makes subordinate's metal fill up the space of die bottom, the upper strata metal is then clamp-oned in the stretch section of lower floor's aluminium sheet, forms Yi Cone shape, and the upper and lower layers aluminium sheet is riveted together.
The invention solves the defective in the present aluminium sheet connecting process.Owing to saved rivet, reduced production process, do not stay perforation again, therefore reduced cost of production, saved the labour force, improved manufacturing efficiency, realize mechanization production again easily.In addition, adopt the present invention to rivet washing machine shell, good outward appearance is not only arranged, but also obtain good anti-spray performance.
Fig. 3 is a fundamental diagram of the present invention
In Fig. 3, (1) is punch, and (2) are the upper strata aluminium sheet, and (3) are lower floor's aluminium sheet, and (4) are die.For method of the present invention, die depth, the die clearance, mould chamfering, mould concentricity and used pressure etc. are important technical parameters.Die depth is not enough, and die clearance and chamfering are excessive or pressure is too little, and the upper strata aluminium sheet is difficult for clamp-oning in the stretch section of lower floor's aluminium sheet or the hobbing depth deficiency, and it is insecure that two-layer aluminium sheet is connected; If die depth is dark excessively, the gap is too little or pressure is excessive, breaks easily or draw to put on a layer aluminium sheet.In addition, when the concentricity of mould is relatively poor, also can cause the riveted joint of upper and lower layers aluminium sheet inhomogeneous, throw off easily.Therefore, in implementing process of the present invention, should select mould that related parameter is respectively arranged and need use pressure according to thickness, hardness and the riveting point size of aluminium sheet.In addition, preferably adopt circular riveting point.
Connecting from riveting with washing machine shell is example: the aluminium sheet material is the L2 aluminium sheet, and thickness is 0.8 millimeter.Die parameters: the die diameter is 12 millimeters, the degree of depth is 1.5 millimeters, convex mould diameter is 8.5 millimeters, protruding, negative mold chamfer radius is 0.3 millimeter, with 100 tons of oil hydraulic presses as machine tool, each action can be finished the riveting work of 12 riveting points of two shells, and each riveting point working pressure is about 8 tons.Show that after tested the average pulling force limit of each riveting point can reach 30 kilograms, satisfies usage requirement fully.
Claims (2)
1, a kind of aluminium sheet is from the method for riveting connection, it is characterized in that utilizing the pressure of oil hydraulic press, punch is moved downward, with two-layer aluminium sheet while pull and stretch, extruding downwards again when aluminium sheet touches die, when making bottom aluminium sheet attenuation, the upper strata aluminium sheet is clamp-oned in the stretch section of lower floor's aluminium sheet, two-layer aluminium sheet is riveted together up and down.
2, method according to claim 1, its riveting point with circle for well.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN87107110.XA CN1005583B (en) | 1987-10-21 | 1987-10-21 | Self-riveting of aluminium plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN87107110.XA CN1005583B (en) | 1987-10-21 | 1987-10-21 | Self-riveting of aluminium plate |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN87107110A true CN87107110A (en) | 1988-09-14 |
| CN1005583B CN1005583B (en) | 1989-10-25 |
Family
ID=4815976
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN87107110.XA Expired CN1005583B (en) | 1987-10-21 | 1987-10-21 | Self-riveting of aluminium plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1005583B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1049958C (en) * | 1994-05-27 | 2000-03-01 | 小原株式会社 | Method for combine different kind of metal plate and riveting them |
| CN1837627B (en) * | 2005-03-22 | 2010-11-17 | 希尔蒂股份公司 | Layered product deep drawing connection structure and deep drawing portion forming method |
| CN101943258A (en) * | 2010-09-21 | 2011-01-12 | 江苏德科汽车科技有限公司 | Belt pulley for tensioner and manufacturing method thereof |
| CN110192066A (en) * | 2016-10-21 | 2019-08-30 | 瓦盖斯燃烧器有限责任公司 | Gas burner for boiler |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1309501C (en) * | 2005-09-23 | 2007-04-11 | 北京科技大学 | On-line cold bending steel fast punching and riveting mold and its punching and riveting method |
-
1987
- 1987-10-21 CN CN87107110.XA patent/CN1005583B/en not_active Expired
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1049958C (en) * | 1994-05-27 | 2000-03-01 | 小原株式会社 | Method for combine different kind of metal plate and riveting them |
| CN1837627B (en) * | 2005-03-22 | 2010-11-17 | 希尔蒂股份公司 | Layered product deep drawing connection structure and deep drawing portion forming method |
| CN101943258A (en) * | 2010-09-21 | 2011-01-12 | 江苏德科汽车科技有限公司 | Belt pulley for tensioner and manufacturing method thereof |
| CN110192066A (en) * | 2016-10-21 | 2019-08-30 | 瓦盖斯燃烧器有限责任公司 | Gas burner for boiler |
| CN110192066B (en) * | 2016-10-21 | 2021-02-12 | 贝克特热能解决方案责任有限公司 | Gas burner for boiler |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1005583B (en) | 1989-10-25 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C13 | Decision | ||
| GR02 | Examined patent application | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C35 | Partial or whole invalidation of patent or utility model | ||
| IW01 | Full invalidation of patent right |
Decision date of declaring invalidation: 19930825 Decision number of declaring invalidation: 368 |