CN108273924A - The two-sided flat no riveting joint forming technique of lightweight plank - Google Patents
The two-sided flat no riveting joint forming technique of lightweight plank Download PDFInfo
- Publication number
- CN108273924A CN108273924A CN201810061018.0A CN201810061018A CN108273924A CN 108273924 A CN108273924 A CN 108273924A CN 201810061018 A CN201810061018 A CN 201810061018A CN 108273924 A CN108273924 A CN 108273924A
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- China
- Prior art keywords
- plank
- flat
- mold
- riveting
- punch
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D39/00—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders
- B21D39/02—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders of sheet metal by folding, e.g. connecting edges of a sheet to form a cylinder
- B21D39/026—Reinforcing the connection by locally deforming
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D37/00—Tools as parts of machines covered by this subclass
- B21D37/10—Die sets; Pillar guides
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
Abstract
The two-sided flat no riveting joint forming technique of lightweight plank includes that the flat no riveting connection of single side connects two steps with two-sided flat no riveting, and flat mold is fixed, and upper plank and lower plank are overlayed flat mould upper surface；The flat no riveting connection procedure of single side starts, and punch moves downward, and punch squeezes upper and lower plank, and upper and lower plank is made to be plastically deformed, the upper lower plank of plank insertion；Two-sided flat no riveting connection starts, upper mold moves downward, valving die makees radial motion along upper mold simultaneously, so that being flowed in the pit of upper plank and the upward plank of material of lower plank protrusion, after the pit filling completely of upper plank, upper mold returns, and valving die is driven to move upwards, upper and lower plank is taken out, the present invention has many advantages, such as that tie point both side surface flat smooth, tie point intensity are high and quality of connection is reliable.
Description
Technical field
The present invention relates to plank interconnection technique field, more particularly to the two-sided flat no riveting of a kind of lightweight plank connects into
Shape technique.
Background technology
In recent years, a wide range of use with lightweight plank in the vehicles such as automobile, aircraft is suitable for connection vapour
Vehicle lightweight plank has obtained rapid development without riveting Joining Technology.No riveting Joining Technology refers to the plastic deformation using plank
Ability carries out punching press using dedicated convex concave mould to connected plank, makes to embed the company realized between plank between plank
It connects.Compared with traditional plank connection type, no riveting Joining Technology not only has in terms of economy, energy consumption, working environment very big
Advantage, and be highly suitable for heterogeneous material, there is coating on surface or the connection of the planks such as paint.
Boring Joining Technology is different according to the shape of mold, can be divided into monoblock type and be moulded without riveting without riveting plastic joining, slide block type
Property connection and flat no riveting without riveting plastic joining.It is obtained without riveting plastic joining without riveting plastic joining and slide block type by monoblock type
Riveted joint side be protrusion, the other side is pit, has seriously affected the appearance of plank connection, in this process punch-pin and cavity plate
It is required that stringent centering, once the intensity of tie point will be seriously affected by generating offset；Although flat no riveting exists without riveting plastic joining
The riveted joint side for expanding the connection application range of plank to a certain extent, but being obtained be plane, side be pit and
Protrusion affects the appearance of plank connection.
Invention content
In order to overcome the disadvantages of the above prior art, the purpose of the present invention is to provide a kind of the two-sided flat of lightweight plank
Bottom can effectively improve the intensity of tie point, and the both sides of riveted joint are plane without riveting joint forming technique.
To achieve the goals above, the technical solution adopted by the present invention is：
The two-sided flat no riveting joint forming technique of lightweight plank, including the flat no riveting connection of single side and two-sided flat nothing
Riveting connects two steps, which is characterized in that
One, before the flat no riveting connection of single side starts, flat mold 5 is fixed, the smooth light in upper surface of flat mold 5
Cunning, upper plank 3 and lower plank 4 overlay the upper surface of flat mold 5, and blank holder 2 pushes down plank 3 and lower plank 4, blank holder
2 center is equipped with punch 1, the central shaft of punch 1 and the center overlapping of axles of blank holder 2；The flat no riveting connection procedure of single side
Start, punch 1 moves downward, and plank 3 in contact, punch 1 continues to move downward, and punch 1 squeezes upper plank 3 and lower plank 4, makes
Upper plank 3 and lower plank 4 deform, and blank holder 2 limits plank 3 and the material of lower plank 4 flows outward, upper plank 3
And the material of lower plank 4 can only be flowed to the gap between punch 1 and blank holder 2, to make in the lower plank of the insertion of upper plank 34；
Due to the upper surface flat smooth of flat mold 5, so the lower surface of lower plank 4 is smooth always, upper plank 3 and lower plank
After 4 formings, punch 1 and blank holder 2 move upwards；
Two, before two-sided flat no riveting connection starts, flat mold 5 is fixed, and upper plank 3 and lower plank 4 are formed by
The flat no riveting connection riveted joint of single side is placed in the upper surface of flat mold 5, and valving die 6 is placed in the surface of plank 3, divides valve
The center overlapping of axles of the central shaft of mold 6 and lower mold 5, valving die 6 are mounted on upper mold 7, and valving die 6 can be along upper
Mold 7 moves radially, the central shaft of upper mold 7 and the center overlapping of axles of valving die 6；Two-sided flat no riveting connection procedure is opened
Begin, upper mold 7 moves downward, while valving die 6 is moved radially along upper mold 7 so that upper plank 3 and lower plank 4 are convex
It is flowed in the pit of the upward plank of material 3 risen, until the material of upper plank 3 and lower plank 4 fills the pit of upper plank 3
Full, upper mold 7 moves upwards, and drives valving die 6 to move upwards, forming terminates.
The present invention has the following advantages：Riveted joint both sides are plane, and the tie point surfacing of formation is smooth, connector at
Shape effect is good；Blank holder is simple in structure, and manufacturing cost is low；The auxiliary materials such as rivet are not needed；Being not necessarily in connection procedure will be upper and lower
Mold centering improves production efficiency；Quality of connection is reliable, and the intensity of connection is high.
Description of the drawings
Fig. 1 is the flat no riveting connection positioning schematic diagram of single side of the present invention.
Fig. 2 is the schematic diagram after the flat no riveting connection of single side of the present invention.
Fig. 3 is the two-sided flat no riveting connection positioning schematic diagram of the present invention.
Fig. 4 is the position view of valving die and upper mold when the two-sided flat no riveting connection of the present invention positions.
Fig. 5 is the schematic diagram after the two-sided flat no riveting connection of the present invention.
Fig. 6 is the position view of valving die and upper mold after the two-sided flat no riveting of the present invention connects.
Specific implementation mode
The present invention is described in detail below in conjunction with the accompanying drawings.
The two-sided flat no riveting joint forming technique of lightweight plank, including the flat no riveting connection of single side and two-sided flat nothing
Riveting connects two steps：
Referring to Fig.1, before the flat no riveting connection of single side starts, flat mold 5 is fixed, and the upper surface of flat mold 5 is flat
Whole smooth, upper plank 3 and lower plank 4 overlay the upper surface of flat mold 5, and blank holder 2 pushes down plank 3 and lower plank 4, press
The center of flange 2 is equipped with punch 1, the central shaft of punch 1 and the center overlapping of axles of blank holder 2.
With reference to Fig. 2, the flat no riveting connection procedure of single side starts, and punch 1 moves downward, plank 3 in contact, and punch 1 continues
It moves downward, punch 1 squeezes upper plank 3 and lower plank 4, so that plank 3 and lower plank 4 is deformed, blank holder 2 limits
The material of plank 3 and lower plank 4 flows outward, and the material of upper plank 3 and lower plank 4 can only be between punch 1 and blank holder 2
Gap is flowed, to make under the insertion of upper plank 3 in plank 4.Due to the upper surface flat smooth of flat mold 5, so lower plank 4
Lower surface be always it is smooth, upper plank 3 and lower plank 4 forming after, punch 1 and blank holder 2 move upwards；
With reference to Fig. 3 and Fig. 4, before two-sided flat no riveting connection starts, flat mold 5 is fixed, upper plank 3 and lower plank
4 are formed by the upper surface that the flat no riveting connection riveted joint of single side is placed in flat mold 5, and valving die 6 is being placed in plank 3 just
Top, with reference to Fig. 4,64 points of valve elements compositions of valving die, the central shaft weight of the central shaft of valving die 6 and lower mold 5
Close, valving die 6 be mounted on upper mold 7 on, valving die 6 can be moved radially along upper mold, the central shaft of upper mold 7 and
The center overlapping of axles of valving die 6；
Referring to figure 5 and figure 6, two-sided flat no riveting connection procedure starts, and upper mold 7 moves downward, while 6 edge of valving die
Upper mold 7 to move radially so that it is flowed in the pit of the upward plank of the material of 4 protrusion of upper plank 3 and lower plank 3, until
The material of upper plank 3 and lower plank 4 fills the pit of upper plank 3 completely, and upper mold 7 moves upwards, and drives valving die 6 upward
It moves, plank 3 and lower plank 4 in taking-up finish.
The position of the blank holder 2 and pressure-pad-force can be adjusted according to the forming quality for the riveting point for being connected plank
Section.
Position, speed and the pressure of the punch 1 can be distinguished according to the forming quality for the riveting point for being connected plank
It is adjusted.
The valving die 6 can be made of two or more points of valve elements, and position and speed is according to connected plank
The forming quality of riveting point can be adjusted.
The position and speed of the upper mold 7 can be adjusted according to the forming quality for the riveting point for being connected plank
Section.
Claims (2)
1. the two-sided flat no riveting joint forming technique of lightweight plank, which is characterized in that including the flat no riveting connection of single side and
Two-sided flat no riveting connects two steps：
One, before the flat no riveting connection of single side starts, flat mold (5) is fixed, the smooth light in upper surface of flat mold (5)
Cunning, upper plank (3) and lower plank (4) overlay the upper surface of flat mold (5), and blank holder (2) pushes down plank (3) and lower plate
The center of material (4), blank holder (2) is equipped with punch (1), the center overlapping of axles of the central shaft and blank holder (2) of punch (1)；
The flat no riveting connection procedure of single side starts, and punch (1) moves downward, and plank (3) in contact, punch (1) continues to move downward, punching
Plank (3) and lower plank (4) in head (1) extruding, make plank (3) and lower plank (4) deform, blank holder (2) limits
The material of upper plank (3) and lower plank (4) flows outward, the material of upper plank (3) and lower plank (4) can only to punch (1) and
Gap flowing between blank holder (2), to make in the embedded lower plank (4) of upper plank (3).Due to the upper table of flat mold (5)
Face flat smooth, so the lower surface of lower plank (4) is smooth always, after upper plank (3) and lower plank (4) forming, punching
Head (1) and blank holder (2) move upwards；
Two, before two-sided flat no riveting connection starts, flat mold (5) is fixed, and upper plank (3) and lower plank (4) are formed
The flat no riveting connection riveted joint of single side be placed in the upper surfaces of flat mold (5), valving die (6) is being placed in plank (3) just
Top, the center overlapping of axles of the central shaft of valving die (6) and lower mold (5), valving die (6) are mounted on upper mold (7),
Valving die (6) can be moved radially along upper mold (7), the central shaft weight of the central shaft and valving die (6) of upper mold (7)
It closes；Two-sided flat no riveting connection procedure starts, and upper mold (7) moves downward, while valving die (6) is made along upper mold (7)
It moves radially so that flowed in the pit of upper plank (3) and the upward plank of material (3) of lower plank (4) protrusion, until upper plank
(3) pit of upper plank (3) is filled completely with the material of lower plank (4), upper mold (7) moves upwards, and drives valving die (6)
It moves upwards, forming terminates.
2. the two-sided flat no riveting joint forming technique of lightweight plank according to claim 1, which is characterized in that described
Valving die (6) can be made of two or more points of valve elements.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810061018.0A CN108273924A (en) | 2018-01-22 | 2018-01-22 | The two-sided flat no riveting joint forming technique of lightweight plank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810061018.0A CN108273924A (en) | 2018-01-22 | 2018-01-22 | The two-sided flat no riveting joint forming technique of lightweight plank |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108273924A true CN108273924A (en) | 2018-07-13 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810061018.0A Pending CN108273924A (en) | 2018-01-22 | 2018-01-22 | The two-sided flat no riveting joint forming technique of lightweight plank |
Country Status (1)
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|---|---|
| CN (1) | CN108273924A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111659845A (en) * | 2020-06-12 | 2020-09-15 | 中南大学 | Spiral riveting lock welding device and method for explosive impact forming |
| CN114570836A (en) * | 2022-03-18 | 2022-06-03 | 湘潭大学 | Metal plate rivet-free connection forming die and method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5680332A (en) * | 1979-12-07 | 1981-07-01 | Nissan Motor Co Ltd | Temporary assembling method of panel |
| CN105344849A (en) * | 2015-11-20 | 2016-02-24 | 西安交通大学 | Board connecting method adopting riveting column vibration type riveting pressing |
| CN205200362U (en) * | 2015-12-24 | 2016-05-04 | 马栋辉 | Rivet welding head of die and lower die on going up die, lower die and having this |
| CN105689563A (en) * | 2016-03-01 | 2016-06-22 | 西安交通大学 | Flat-bottom riveting-free vibration connection forming device and technology of light board |
| CN206028519U (en) * | 2016-09-22 | 2017-03-22 | 山东科技大学 | Flexible moving split type does not have stamping device of riveting |
-
2018
- 2018-01-22 CN CN201810061018.0A patent/CN108273924A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5680332A (en) * | 1979-12-07 | 1981-07-01 | Nissan Motor Co Ltd | Temporary assembling method of panel |
| CN105344849A (en) * | 2015-11-20 | 2016-02-24 | 西安交通大学 | Board connecting method adopting riveting column vibration type riveting pressing |
| CN205200362U (en) * | 2015-12-24 | 2016-05-04 | 马栋辉 | Rivet welding head of die and lower die on going up die, lower die and having this |
| CN105689563A (en) * | 2016-03-01 | 2016-06-22 | 西安交通大学 | Flat-bottom riveting-free vibration connection forming device and technology of light board |
| CN206028519U (en) * | 2016-09-22 | 2017-03-22 | 山东科技大学 | Flexible moving split type does not have stamping device of riveting |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111659845A (en) * | 2020-06-12 | 2020-09-15 | 中南大学 | Spiral riveting lock welding device and method for explosive impact forming |
| CN111659845B (en) * | 2020-06-12 | 2021-04-27 | 中南大学 | Spiral riveting lock welding device and method for explosive impact forming |
| CN114570836A (en) * | 2022-03-18 | 2022-06-03 | 湘潭大学 | Metal plate rivet-free connection forming die and method |
| CN114570836B (en) * | 2022-03-18 | 2023-05-23 | 湘潭大学 | Metal plate rivetless connection forming die and method |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180713 |