CN100999006A - Riveting method of metal thin sheet and its structure - Google Patents
Riveting method of metal thin sheet and its structure Download PDFInfo
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- CN100999006A CN100999006A CN 200710000389 CN200710000389A CN100999006A CN 100999006 A CN100999006 A CN 100999006A CN 200710000389 CN200710000389 CN 200710000389 CN 200710000389 A CN200710000389 A CN 200710000389A CN 100999006 A CN100999006 A CN 100999006A
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- sheet metal
- cut length
- link node
- turnover
- extruding
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Abstract
The present invention discloses a riveting method of metal sheets and its structure. Said invention is used for riveting connection of several layers of metal sheets, and said riveting method includes the following steps: overlapping the portions of metal sheets which are required for connection, forming cutting part in the connection joint position of metal sheet, at least one edge of said cutting part is connected with respective metal sheet; making all the cutting parts be overlapped together and utilizing extrusion pressing method to make the cutting parts be turned towards external surface of bottom portion metal sheet so as to form connection joint for connecting all the metal sheets.
Description
Technical field
What the present invention relates to is a kind of method of attachment of sheet metal; Specifically, be new clinching method of a kind of sheet metal and riveted structure.
Background technology
Being used for the syndeton of sheet metal and method of attachment at present has a variety of as can be referring to Chinese patent CN87100239A, and it discloses a kind of syndeton of sheet metal, and it connects first and second sheet metals by plastic processing method and forms.On first sheet metal first cut length of being with opening is arranged.Place the part of first end, second sheet metal one side above the sheet metal to be sandwiched in the middle of described opening and described first cut length, under this state, quilt is pressed from both sides partly to push forward with cut length and is pressed in the described opening.Second sheet metal that is squeezed into opening partly pinned by the perisporium of opening.This structure only needs with simple extrusion process the part of second sheet metal to be clamp-oned the opening of first thin plate by a simple pressurizing unit, just can obtain a firm syndeton.
The method of attachment of another kind of sheet metal can be referring to Chinese patent CN1222872A, and it discloses a kind of diffusion welding process, is used for connecting the metal-sheet parts that overlaps together mutually by engaging operation.Wherein make in the volume local displacement of the material of connecting point position metal-sheet parts and owing to forge perpendicular to the edge on the plane of sheet metal that to engage be that material flows by drift and punch die.Even under situation with material that tangible work hardening orders about or prevulcanized material, in order to produce enough strong structural member, adopt such measure: in the bonding operation process, will be pressed on the punch die around the metal-sheet parts of connecting point position to be enough to prevent any power that flows against the material of drift direction of action.
Also have a kind of clinching method of sheet metal can be referring to Chinese patent CN1712744A, it discloses a kind of metallic plate riveting set and clinching method, is used for one first metallic plate and one second metallic plate are riveted.Form a through hole on first metallic plate, second metallic plate, one side forms a protuberance, and a depressed part that forms corresponding protuberance at the opposite side of second metallic plate.First metallic plate covers second metallic plate then, and through hole holds projection.Force in protuberance, pressure-bearing unit support second metallic plate with the forging and pressing unit.Projecting block extruding protuberance is that protuberance produces distortion.The protuberance of contact-making surface crimp makes the protuberance of distortion that second metallic plate is engaged first metallic plate.
Also put down in writing the equipment that a lot of sheet metals connect in addition in the prior art, from these equipment, also can embody the syndeton of these sheet metals, see also Chinese patent CN2198337Y, it discloses the die apparatus that a kind of thin plate that the mutual lapping of thin plate is connected connects, it comprises mould, the drift of a deep punch, characteristics are that the end of staking punch is provided with circular chamfering, with the cross-sectional area of the corresponding staking punch of deep punch geometry be the 60%-80% of deep punch cross-sectional area.Its advantage is that mould is simple, as long as an operation just can produce a firm especially node between two boards, the part of node projecting plate is shorter.
According to above-mentioned prior art we as can be seen, at present in order to satisfy the requirement that connects sheet metal fast, the syndeton majority of sheet metal is to adopt the method for plastic deformation to finish.Distortion by a sheet metal comes to form fast node between sheet metal.Owing to being so that its fastness of link node that forms of plastic deformation is not strong, and present technology all needs each link node of finishing one by one, so though form that node is fairly simple to link together whole sheet metal or need long time and more operation.
Summary of the invention
At the deficiency of prior art, the invention provides a kind of method of attachment of sheet metal, this method adopts through the riveted joint mode after the cutting, and it is more firm that sheet metal is connected.
Another object of the present invention provides a kind of syndeton of sheet metal, and this is simple in structure, and the fixing metal thin plate is also more firm, and easy to process, only needs time processing just can finish.
Another object of the present invention provides a kind of die apparatus that is exclusively used in this syndeton of processing.
Technical characterictic of the present invention is to adopt decompressor once to form link node on sheet metal; This link node comprises a cut length that cuts down from sheet metal, is close to bulk link node on the sheet metal outer surface with just having formed one after the cut length turnover extruding.
A clinching method that scheme is a kind of sheet metal of the present invention, be used for the sheet metal of multilayer is riveted connection, with overlapping that sheet metal need connect, link node place at sheet metal forms cut length, this cut length has at least a limit to be connected with the sheet metal of self, all cut length all overlap and through the outer surface turnover of extruding to the bottom metal thin plate, form the link node that connects all sheet metals.
Optimally; Link node processes at one time with punch press.
Optimally; All link nodes all process at one time with punch press.
Optimally; Cut length is to the turnover of the outer surface of bottom metal thin plate, and cut length is close to the outer surface of sheet metal, and is squeezed into bulk by mould and forms link node.
Optimally; The shape of cut length is square, polygon, triangle, circle or oval.
Another scheme of the present invention is a kind of riveted structure of sheet metal, comprise the overlapped sheet metal more than 2 layers together, the link node place of sheet metal is provided with the breach of a cutting, the cut length that sheet metal is cut has at least a limit still to be connected on the sheet metal of himself, all cut length are all overlapping, and these cut length form link node to a direction turnover back.
Optimally; Be close to the outer surface of sheet metal and form bulk after the cut length turnover.
Another scheme of the present invention is a kind of device for riveting sheet metal, and after being used for the sheet metal more than 2 layers overlapped each other, cutting earlier is cut length down, then cut length extruding turnover back is formed node; It comprises a drift and extruding turnover mould; Drift has the cutting knife of a part cutting and with the sidewall of 90 ° of cut length turnovers; The cut length that extruding turnover mould will turn down after 90 ° is pushed the link node of being close to the outer surface of sheet metal and forming bulk.
Optimally; Device for riveting sheet metal is provided with many groups according to the needs of link node and position, is used for once finishing the connection of sheet metal.
The method of attachment of a kind of sheet metal of the present invention is used for the sheet metal of multilayer is riveted connection, and it comprises the steps; Many group drifts and extruding turnover set of molds are set; Be used on sheet metal, forming the link nodes that need more; What sheet metal need connect overlaps; The connecting portion of overlapping good sheet metal is located in riveting set; Be used for the riveted joint position of sheet metal is turned down the set of molds correspondence in drift and extruding; Drift and the work of extruding turnover set of molds form link node on sheet metal.
So advantage of the present invention is that it is more solid and reliable than adopting plastic deformation to form link node owing to adopt the link node of bending structure.This link node can be finished by enough equipment once, so production and processing is convenient and swift, has improved production efficiency.Especially owing to drift and the extrusion die of finishing this link node are very simple, so can be on a pressing equipment to all drifts and extrusion die being installed in requisition for the link node that forms, finish so just can disposable all tie points all make sheet metal; Improved production efficiency compared with prior art.
Below in conjunction with the present invention being done further disclosure.
Description of drawings
Fig. 1 is the vertical view of sheet metal of the present invention;
Fig. 2 is the front view of sheet metal of the present invention;
Fig. 3 is the enlarged drawing of sheet metal link node of the present invention;
Fig. 4 is the cutting of sheet metal of the present invention, the schematic diagram step by step that extruding forms link node;
Fig. 5 for the refrigerator that uses method of the present invention and be connected and fixed at the bottom of the front view of steel plate;
Fig. 6 is the vertical view of Fig. 5.
The specific embodiment
Embodiment 1:
A kind of clinching method of sheet metal, present embodiment is riveted connection with 2 layers of sheet metal, see also Fig. 1 and Fig. 2 with overlapping together that sheet metal A and sheet metal B need be connected, form similar rectangle cut length at the link node place of sheet metal, this cut length has at least a limit to be connected with the sheet metal of self, two-layer up and down cut length overlaps and through the outer surface turnover of extruding to the bottom metal thin plate, forms the link node that connects all sheet metals.
See also Fig. 3, cut length is to the turnover of the outer surface of bottom metal thin plate, and cut length is close to the outer surface of sheet metal, and is squeezed into bulk by mould and forms link node 1.Link node processes at one time with punch press.All link nodes all process at one time with punch press.
Certainly the shape of cut length can be a variety of such as square, polygon, triangle, circle or ellipse etc.
Embodiment 2:
See also Fig. 3, a kind of riveted structure of sheet metal, comprise overlapped 2 layers of sheet metal together, link node 1 place of sheet metal is provided with the breach of a cutting, the cut length 2 that sheet metal is cut has at least a limit still to be connected on the sheet metal of himself, 2 layers of cut length 2 are all overlapping, and these cut length 2 form link node 1 to a direction turnover back.
Be close to the outer surface of sheet metal and form bulk after cut length 2 turnovers.
Structure of the present invention especially be fit to be applied to the end steel plate of refrigerator and micro-wave oven household electrical appliance such as wallboard production and make.
It is the end steel plate of a refrigerator to see also Fig. 5, sees also 6 and just uses structure of the present invention to connect in the position that connects when connecting this steel plate.The application surface of this syndeton is very wide, is suitable for the connection of various sheet metals.
Embodiment 3;
See also Fig. 4, a kind of device for riveting sheet metal, after being used for 2 layers of sheet metal are overlapped each other, cutting earlier is cut length down, then cut length extruding turnover back is formed node.
It comprises a drift 10 and extruding turnover mould 20; Drift has the cutting knife 11 of a part cutting and with the sidewall 12 of 90 ° of cut length turnovers; The cut length that extruding turnover mould 20 will turn down after 90 ° is pushed the link node of being close to the outer surface of sheet metal and forming bulk.
Device for riveting sheet metal is provided with many groups according to the needs of link node and position, is used for once finishing the connection of sheet metal.
Embodiment 4:
A kind of method of attachment of sheet metal is used for the sheet metal of multilayer is riveted connection, and it comprises the steps;
Many group drifts and extruding turnover set of molds are set; Be used on sheet metal, forming the link nodes that need more;
What 2 layers of sheet metal need connect overlaps;
The connecting portion of overlapping good sheet metal is located in riveting set; Be used for the riveted joint position of sheet metal is turned down the set of molds correspondence in drift and extruding;
See also Fig. 4, drift and the work of extruding turnover set of molds, drift cuts sheet metal earlier, and then with 90 ° of cut length turnovers, the cut length after the extruding of extruding turnover mould turns down 90 ° then forms link node on sheet metal.
Claims (10)
1, a kind of clinching method of sheet metal is used for the sheet metal of multilayer is riveted connection, it is characterized in that:
With overlapping that sheet metal need connect,
Link node place at sheet metal forms cut length, and this cut length has at least a limit to be connected with the sheet metal of self,
All cut length all overlap and through the outer surface turnover of extruding to the bottom metal thin plate, form the link node that connects all sheet metals.
2, the clinching method of sheet metal according to claim 1 is characterized in that: cut length is to the turnover of the outer surface of bottom metal thin plate, and cut length is close to the outer surface of sheet metal, and is squeezed into bulk by mould and forms link node.
3, the clinching method of sheet metal according to claim 1 and 2, it is characterized in that: link node processes at one time with punch press.
4, the clinching method of sheet metal according to claim 1 and 2 is characterized in that: all link nodes all process at one time with punch press.
5, the clinching method of sheet metal according to claim 1 is characterized in that: the shape of cut length is square, polygon, triangle, circle or oval.
6, a kind of riveted structure of sheet metal, comprise the overlapped sheet metal more than 2 layers together, it is characterized in that: the link node place of sheet metal is provided with the breach of a cutting, the cut length that sheet metal is cut has at least a limit still to be connected on the sheet metal of himself, all cut length are all overlapping, and these cut length form link node to a direction turnover back.
7, the riveted structure of sheet metal according to claim 6 is characterized in that: be close to the outer surface of sheet metal and form bulk after the cut length turnover.
8, a kind of device for riveting sheet metal, after being used for the sheet metal more than 2 layers overlapped each other, cutting earlier is cut length down, then cut length extruding turnover back is formed node; It is characterized in that: it comprises a drift and extruding turnover mould; Drift has the cutting knife of a part cutting and with the sidewall of 90 ° of cut length turnovers; The cut length that extruding turnover mould will turn down after 90 ° is pushed the link node of being close to the outer surface of sheet metal and forming bulk.
9, device for riveting sheet metal according to claim 8 is characterized in that: device for riveting sheet metal is provided with many groups according to the needs of link node and position, is used for once finishing the connection of sheet metal.
10, a kind of method of attachment of sheet metal is used for the sheet metal of multilayer is riveted connection, and it comprises the steps:
Many group drifts and extruding turnover set of molds are set; Be used on sheet metal, forming the link nodes that need more;
What sheet metal need connect overlaps;
The connecting portion of overlapping good sheet metal is located in riveting set; Be used for the riveted joint position of sheet metal is turned down the set of molds correspondence in drift and extruding;
Drift and the work of extruding turnover set of molds form link node on sheet metal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200710000389 CN100999006A (en) | 2007-01-22 | 2007-01-22 | Riveting method of metal thin sheet and its structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200710000389 CN100999006A (en) | 2007-01-22 | 2007-01-22 | Riveting method of metal thin sheet and its structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN100999006A true CN100999006A (en) | 2007-07-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200710000389 Pending CN100999006A (en) | 2007-01-22 | 2007-01-22 | Riveting method of metal thin sheet and its structure |
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| CN (1) | CN100999006A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102814626A (en) * | 2012-08-23 | 2012-12-12 | 朱强龙 | Method for manufacturing curved rail |
| CN107282792A (en) * | 2017-07-21 | 2017-10-24 | 广东万博电气有限公司 | The riveting tool and method of a kind of solar heat collector frame |
-
2007
- 2007-01-22 CN CN 200710000389 patent/CN100999006A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102814626A (en) * | 2012-08-23 | 2012-12-12 | 朱强龙 | Method for manufacturing curved rail |
| CN102814626B (en) * | 2012-08-23 | 2015-09-23 | 朱强龙 | A kind of bend preparation method |
| CN107282792A (en) * | 2017-07-21 | 2017-10-24 | 广东万博电气有限公司 | The riveting tool and method of a kind of solar heat collector frame |
| CN107282792B (en) * | 2017-07-21 | 2023-08-08 | 广东万和电气有限公司 | Riveting tool and method for solar heat collector frame |
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Open date: 20070718 |