CN108457954A - A kind of semi-hollow self-piercing riveting screw and self-pierce riveting device and method with fastening thread - Google Patents
A kind of semi-hollow self-piercing riveting screw and self-pierce riveting device and method with fastening thread Download PDFInfo
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- CN108457954A CN108457954A CN201810348196.1A CN201810348196A CN108457954A CN 108457954 A CN108457954 A CN 108457954A CN 201810348196 A CN201810348196 A CN 201810348196A CN 108457954 A CN108457954 A CN 108457954A
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- 238000000034 method Methods 0.000 title claims abstract description 27
- 239000000463 material Substances 0.000 claims abstract description 23
- 230000008569 process Effects 0.000 claims abstract description 15
- 238000000465 moulding Methods 0.000 claims abstract description 11
- 230000007246 mechanism Effects 0.000 claims abstract description 10
- 229910000831 Steel Inorganic materials 0.000 claims description 12
- 239000010959 steel Substances 0.000 claims description 12
- 229910001234 light alloy Inorganic materials 0.000 claims description 8
- 239000002131 composite material Substances 0.000 claims description 7
- 239000006104 solid solution Substances 0.000 claims description 6
- 238000010438 heat treatment Methods 0.000 claims description 5
- 239000007769 metal material Substances 0.000 claims description 5
- 238000010791 quenching Methods 0.000 claims description 5
- 229910000975 Carbon steel Inorganic materials 0.000 claims description 4
- 239000010962 carbon steel Substances 0.000 claims description 4
- 239000011159 matrix material Substances 0.000 claims description 4
- 230000000171 quenching effect Effects 0.000 claims description 4
- 239000007787 solid Substances 0.000 claims description 4
- 229920006395 saturated elastomer Polymers 0.000 claims description 3
- 239000002648 laminated material Substances 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 229910045601 alloy Inorganic materials 0.000 description 12
- 239000000956 alloy Substances 0.000 description 12
- 238000005516 engineering process Methods 0.000 description 7
- 238000004080 punching Methods 0.000 description 6
- 229910000755 6061-T6 aluminium alloy Inorganic materials 0.000 description 4
- 229920000049 Carbon (fiber) Polymers 0.000 description 4
- 239000004917 carbon fiber Substances 0.000 description 4
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- 229910000853 7075 T6 aluminium alloy Inorganic materials 0.000 description 3
- 229910001008 7075 aluminium alloy Inorganic materials 0.000 description 3
- 229910001209 Low-carbon steel Inorganic materials 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005553 drilling Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052755 nonmetal Inorganic materials 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B19/00—Bolts without screw-thread; Pins, including deformable elements; Rivets
- F16B19/04—Rivets; Spigots or the like fastened by riveting
- F16B19/08—Hollow rivets; Multi-part rivets
- F16B19/10—Hollow rivets; Multi-part rivets fastened by expanding mechanically
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J15/00—Riveting
- B21J15/02—Riveting procedures
- B21J15/025—Setting self-piercing rivets
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J15/00—Riveting
- B21J15/10—Riveting machines
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/56—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using mechanical means or mechanical connections, e.g. form-fits
- B29C65/60—Riveting or staking
- B29C65/601—Riveting or staking using extra riveting elements, i.e. the rivets being non-integral with the parts to be joined
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
- B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B35/00—Screw-bolts; Stay-bolts; Screw-threaded studs; Screws; Set screws
- F16B35/04—Screw-bolts; Stay-bolts; Screw-threaded studs; Screws; Set screws with specially-shaped head or shaft in order to fix the bolt on or in an object
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B5/00—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them
- F16B5/02—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them by means of fastening members using screw-thread
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B5/00—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them
- F16B5/04—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them by means of riveting
- F16B5/045—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them by means of riveting without the use of separate rivets
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2007/00—Flat articles, e.g. films or sheets
- B29L2007/002—Panels; Plates; Sheets
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2009/00—Layered products
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Insertion Pins And Rivets (AREA)
- Connection Of Plates (AREA)
Abstract
The present invention provides a kind of semi-hollow self-piercing riveting screw with fastening thread, it is characterized in that, include rivet body with core structure in midair and is set to the thread head with fastening thread of rivet body upper surface, thread head bottom is equipped with convenient for the escape of withdrawing after the completion of screw thread process, and the outer diameter of rivet body is identical as the outer diameter of thread head.The invention also discloses the self-pierce riveting device and method of the above-mentioned riveting screw of application, push semi-hollow self-piercing riveting screw to realize the riveting molding compared with light sheet by improved self-pierce riveting jumper bar, then realize the mechanical connection between thicker plate material by thread mechanism again.Structure of the invention form is simple, manufacture easy to process, at low cost, overcomes the limitation of traditional riveted plate thickness of semi-hollow self-piercing riveting screw, the mechanical connection between three layers or multilayer thicker plate material may be implemented.
Description
Technical field
The invention belongs to metal and nonmetal plate connection area more particularly to a kind of semi-hollows with fastening thread certainly
Riveting screw and self-pierce riveting device and method are rushed, especially suitable for possessing higher-strength and thickness, of the same race and dissimilar metal material
The mechanical connection of material, most nonmetallic materials.
Background technology
Thin matter metal and nonmetal plate have a wide range of applications in machinery industry and automobile industry, self-punching riveting technology
As a kind of novel thin lumber interconnection technique for substituting traditional resistor spot welding, need not in advance be rushed as conventional rivet connection technology
Hole, it is simple for process, METHOD FOR LARGE DEFORMATION ELASTOPLASTIC is carried out by semi-hollow self-punching rivet and alloy in lightweight plank jointly, forms mechanical internal lock,
Realize firm mechanical connection；Especially suitable for 2~6mm and it is difficult to the fastening of the alloy in lightweight welded and composite board
Connection, but due to the limitation of rivet bar and its size, the plastic deformation that rivet is occurred during riveting molding cannot be too big,
No it will cause rivet fracture failures, this causes connection of the self-punching riveting technology between thicker and multi-layered board tired
It is difficult.
Utility model patent (application No. is 201520328312.5) discloses a kind of screw rivet, and the patent is in manufactured head
Portion adds drilling head, the one-step shaping of riveting is realized by way of material removal, but the rivet difficulty of processing is big, to drilling head
Material requirements is high, and cost is larger, and is not suitable for the riveting process process of existing semi-hollow self-pierce riveting equipment, involved by the patent
Internal thread be to have no practical connection function to be fixed on riveting gun.
Therefore, it is necessary to provide a kind of self-piercing riveting screw and equipment to solve the connection between thicker and multi-layered board
Problem.
Invention content
According to technical problem set forth above, and provide a kind of semi-hollow self-piercing riveting screw with fastening thread and from
Sleeving and riveting device and method.The present invention mainly utilizes and designs thread mechanism on the basis of traditional semi-hollow self-piercing riveting screw, will be partly
Hollow self-piercing riveting screw is integrated with thread mechanism design, pushes semi-hollow self-pierce riveting by improved self-pierce riveting jumper bar first
Riveting molding of the screw realization compared with light sheet is connect, the mechanical connection between thicker plate material is then realized by thread mechanism, to
Realize connection of the multi-layered board within the scope of different-thickness.
The technological means that the present invention uses is as follows：
A kind of semi-hollow self-piercing riveting screw with fastening thread, which is characterized in that described to carry the half of fastening thread
Hollow self-piercing riveting screw includes having the rivet body of core structure in midair and being set to carrying for the rivet body upper surface
The thread head of fastening thread, the thread head bottom are equipped with convenient for the escape of withdrawing after the completion of screw thread process, the rivet master
The outer diameter of body is identical as the outer diameter of the thread head.
Further, the thread head is for connecting thicker plank, the coarse plain thread with M3-M8 and closely-pitched
Regular screw threads, nominal length 12mm-22mm.
The invention also discloses a kind of self-pierce riveting equipment, which is characterized in that carries fastening thread in midair using above-mentioned
Heart self-piercing riveting screw, the jumper bar inside self-pierce riveting punch being used cooperatively with it are equipped with described with fastening thread for accommodating
Semi-hollow self-piercing riveting screw unthreaded hole, the unthreaded hole is worked in coordination with the thread head top, for ensuring riveting molding
Process to disposition；The self-pierce riveting equipment further include the embedding blank holder being set on the outside of the self-pierce riveting punch and with it is described
Blank holder is in mold under the self-pierce riveting being oppositely arranged up and down, and upper layer plank to be riveted and lower layer's plank stacked on top are placed on
Under the self-pierce riveting on mold, the blank holder is driven to move downward and mold under the self-pierce riveting by the self-pierce riveting punch
After molding, the semi-hollow self-piercing riveting screw with fastening thread is pushed to make the rivet body and the upper layer plank
It is formed between lower layer's plank mechanical interlocked, then the company between thicker plank is realized by the thread mechanism of the thread head
It connects.
Further, the material selection high-strength light alloy of the upper layer plank and lower layer's plank, high-strength steel sheet, low strong
Spend one kind in carbon steel or nonmetallic composite；The thicker plank refers to the poor metal material or non-metallic material of plasticity
Material.
Further, the plate thickness of the upper layer plank and lower layer's plank is 2mm-6mm, the plate of the thicker plank
Material thickness is 4mm-16mm.
The invention also discloses a kind of methods riveting multi-layered board using above-mentioned self-pierce riveting equipment, it is characterised in that packet
Include following steps：
S1, upper layer plank to be riveted and lower layer's plank stacked on top are placed under the self-pierce riveting on mold；
S2, driven by the self-pierce riveting punch blank holder move downward with after mold clamping under the self-pierce riveting,
The semi-hollow self-piercing riveting screw with fastening thread is pushed to make the rivet body and the upper layer plank and lower layer
It is formed between plank mechanical interlocked；
S3, again by the thread mechanism of the thread head realize and thicker plank between connection, to realize multilayer
Connection of the plank within the scope of different-thickness.
Further, when riveting high-strength light alloy or high-strength steel sheet, the step S1 further includes will be to be riveted
Upper layer plank and lower layer's plank be put into heating furnace and heat, so that its temperature is rapidly achieved preset solid solubility temperature, keep the temperature one section
So that solute atoms is fully dissolved into obtain saturated solid solution in matrix after time, then quickly turns two layers of plank after solid solution
It is transported to the self-piercing riveting for being ready for step S2 under self-pierce riveting on mold, then pressurize quenching is carried out to riveting part.
Compared with the prior art, the present invention with fastening thread semi-hollow self-piercing riveting screw can be used for alloy in lightweight,
The connection of most nonmetallic materials plank such as carbon steel and composite material, and can be used between high-strength light alloy and high strength steel plate
Warm riveting, improve material processability by way of heat treatment, can realize at high temperature self-piercing riveting be molded, passing through
Cross the mechanical connection between the plank that screw thread is realized and the plasticity such as other Materials with High Strength or composite material are poor.Self-pierce riveting of the present invention
The forming process connect be formed by the expansion of rivet tail portion it is mechanical interlocked, to realize effective mechanical connection, and thread head
It can be used for connecting the larger plank of other thickness, there is practical connection function.
The present invention has the following advantages：
1) limitation for overcoming traditional riveted plate thickness of semi-hollow self-punching rivet, may be implemented three layers or multilayer thicker plate
Mechanical connection between material.
2) high-strength light alloy and high-strength steel pass through suitable heat treatment technique, and the semi-hollow with fastening thread can be used certainly
Riveting screw is rushed to rivet and obtain the connector of good quality.
3) connection between the poor heterogeneous plank of a variety of plasticity such as composite material, carbon fiber may be implemented.
4) the semi-hollow self-piercing riveting bolt structure form with fastening thread of the invention is simple, manufacture easy to process,
Cost is relatively low.
The present invention can rivet field in multi-layered board and be widely popularized based on the above reasons.
Description of the drawings
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technology description to do simply to introduce, it should be apparent that, the accompanying drawings in the following description is this hair
Some bright embodiments for those of ordinary skill in the art without having to pay creative labor, can be with
Obtain other attached drawings according to these attached drawings.
Fig. 1 is the structural schematic diagram of semi-hollow self-piercing riveting screw of the present invention with fastening thread.
Fig. 2 is to implement multi-layered board company using semi-hollow self-piercing riveting screw of the present invention with fastening thread in embodiment
The schematic diagram connect.
Fig. 3 is the sectional view of semi-hollow self-piercing riveting screw and riveting set of the present invention with fastening thread.
In figure：1, self-pierce riveting punch；2, blank holder；3, the semi-hollow self-piercing riveting screw with fastening thread；31, rivet
Main body；32, thread head；33, escape；4, upper layer plank；5, lower layer's plank；6, mold under self-pierce riveting.
Specific implementation mode
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical solution in the embodiment of the present invention carries out clear, complete description, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art
The every other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.
As shown in Figure 1, a kind of semi-hollow self-piercing riveting screw with fastening thread, described to carry fastening thread in midair
Heart self-piercing riveting screw 3 includes with the rivet body 31 of core structure in midair and the band for being set to 31 upper surface of the rivet body
There are the thread head 32 of fastening thread, 32 bottom of the thread head to be equipped with convenient for the escape 33 of withdrawing after the completion of screw thread process, institute
The outer diameter for stating rivet body 31 is identical as the outer diameter of the thread head 32.The thread head 32 is used to connect thicker plank,
Coarse plain thread with M3-M8 and closely-pitched regular screw threads, nominal length 12mm-22mm.
As shown in figure 3, the invention also discloses a kind of self-pierce riveting equipment, certainly using the above-mentioned semi-hollow with fastening thread
Riveting screw 3 is rushed, the jumper bar inside self-pierce riveting punch 1 being used cooperatively with it is equipped with described with fastening thread for accommodating
The unthreaded hole of semi-hollow self-piercing riveting screw 3, the unthreaded hole is worked in coordination with 32 top of the thread head, for ensuring riveting molding
Process to disposition；The self-pierce riveting equipment further include the embedding blank holder 2 for being set on the outside of the self-pierce riveting punch 1 and with institute
It is in mold 6 under the self-pierce riveting being oppositely arranged up and down to state blank holder 2, by 5 stacked on top of upper layer plank 4 to be riveted and lower layer's plank
Be placed under the self-pierce riveting on mold 6, by the self-pierce riveting punch 1 drive the blank holder 2 move downward with it is described from
After mold 6 molds under sleeving and riveting, the semi-hollow self-piercing riveting screw 3 for carrying fastening thread is pushed, the rivet body 31
Expand and drive the flowing of plank, rivet and plank to generate larger plastic deformation simultaneously in leg so that the rivet body 31
It is formed mechanical interlocked, then is passed through by the thread mechanism of the thread head 32 pre- between the upper layer plank 4 and lower layer's plank 5
The thicker plank first to drill, and attaching nut lock, realize and thicker plank between connection, to realize three layers or
Connection (as shown in Figure 2) between multilayer thicker plate material.
Material selection high-strength light alloy, high-strength steel sheet, the low-intensity carbon steel of the upper layer plank 4 and lower layer's plank 5
Or one kind in nonmetallic composite；The thicker plank refers to the poor metal material of plasticity or nonmetallic materials.
The plate thickness of the upper layer plank 4 and lower layer's plank 5 is 2mm-6mm, the plate thickness of the thicker plank
For 4mm-16mm.
The invention also discloses a kind of methods riveting multi-layered board using above-mentioned self-pierce riveting equipment, include the following steps：
S1, the upper layer plank 4 with riveting and 5 stacked on top of lower layer's plank are placed under the self-pierce riveting on mold 6；
S2, it drives the blank holder 2 to move downward by the self-pierce riveting punch 1 to mold with mold 6 under the self-pierce riveting
Afterwards, the semi-hollow self-piercing riveting screw 3 with fastening thread is pushed so that the rivet body 31 and the upper layer plank 4
It is formed between lower layer's plank 5 mechanical interlocked；
S3, again by the thread mechanism of the thread head 32 realize and thicker plank between connection, to realize it is more
Connection of the laminate material within the scope of different-thickness.
When riveting high-strength light alloy or high-strength steel sheet, the step S1 further includes by upper layer plank to be riveted
4 and lower layer's plank 5 be put into heating furnace and heat, so that its temperature is rapidly achieved preset solid solubility temperature, make after keeping the temperature a period of time
Solute atoms is fully dissolved into obtain saturated solid solution in matrix, then by two layers of plank rapid transport after solid solution to punching certainly
The self-piercing riveting of step S2 is ready under riveting on mold 6, then pressurize quenching, riveting part cooling period are carried out to riveting part
The component is maintained in Guan Bi mould, pressurize is continued to double sheets, completes quenching process in mold.
Embodiment 1
As shown in figure 3, the upper layer plank 4 used in the present embodiment is 1 layer of 2mm thickness 6061-T6 aluminium alloy, lower layer's plank 5
For 1 layer of 3mm thickness Q235 mild steel and 1 layer of 4mm thickness carbon fiber sheet, plank overall thickness is 9mm, and wherein 6061-T6 aluminium alloys are bent
It is 200~230Mpa to take intensity, and tensile strength is 340~380Mpa, and Q235 steel yield strengths are 230~240Mpa, and tension is strong
Degree is 370~500Mpa.
Preferable self-pierce riveting molding may be implemented in 6061-T6 aluminium alloys and Q235 mild steel at normal temperatures, and wherein plasticity is preferable
Q235 be placed on middle part as lower layer's plank 5,6061-T6 aluminium alloys are placed on upper layer, determine to realize riveting molding, carbon fiber after position presss from both sides Installed
Plank is tieed up since plasticity is poor, is not suitable for as riveting plank, therefore is used as top layer's plank, spiral shell after the completion of riveting after punching in advance
Line head 32 passes through the through-hole of carbon fiber and is locked with attaching nut, the machine between heterogeneous plank to realize three layers of different-thickness
Tool connects.
Embodiment 2
As shown in figure 3, the upper layer plank 4 and lower layer's plank 5 employed in the present embodiment are the 7075-T6 high of 2mm thickness
Strength aluminium alloy and 1 layer of 6mm thickness high strength steel plate, plank overall thickness are 10mm, and wherein 7075-T6 aluminium alloys yield strength is
480~520Mpa, tensile strength are 630~670Mpa；High strength steel plate yield strength is 800~900Mpa, and tensile strength is
1200~1300Mpa.
Under room temperature 7075-T6 aluminium alloys can not riveting molding, therefore be first heat-treated, improve the formability of material.
The double-deck 7075-T6 aluminum alloy plate materials to be riveted are heated into solution treatment first, wherein solid solubility temperature is 470-480
DEG C, soaking time 25-35min, 7075 aluminium alloys are preferable in 400 DEG C or so formabilities, therefore wait for 7075 aluminium after the completion of being dissolved
When alloy is cooled to 380-410 DEG C, 1 downlink of self-pierce riveting punch push with fastening thread semi-hollow self-piercing riveting screw 3 into
Row riveting, while pair 7075 aluminium alloys quench under the action of mold 6 under blank holder 2 and self-pierce riveting, near reinforcing joint
7075 material matrix performances wait for plank greenhouse cooling to 100 DEG C hereinafter, completing double-deck light plate self-piercing riveting process.
The double-deck self-pierce riveting connector that will be cooled to room temperature penetrates thicker high strength steel plate by screw head, and nut is used in combination
The connection of three layers of thicker plate material is finally realized in locking.
Finally it should be noted that：The above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent
Present invention has been described in detail with reference to the aforementioned embodiments for pipe, it will be understood by those of ordinary skill in the art that：Its according to
So can with technical scheme described in the above embodiments is modified, either to which part or all technical features into
Row equivalent replacement；And these modifications or replacements, various embodiments of the present invention technology that it does not separate the essence of the corresponding technical solution
The range of scheme.
Claims (7)
1. a kind of semi-hollow self-piercing riveting screw with fastening thread, which is characterized in that described to carry fastening thread in midair
Heart self-piercing riveting screw (3) includes having the rivet body (31) of core structure in midair and being set to the rivet body (31) upper end
The thread head (32) with fastening thread in face, thread head (32) bottom is equipped with moves back convenient for withdrawing after the completion of screw thread process
The outer diameter of cutter groove (33), the rivet body (31) is identical as the outer diameter of the thread head (32).
2. the semi-hollow self-piercing riveting screw according to claim 1 with fastening thread, which is characterized in that the screw thread
For connecting thicker plank, coarse plain thread and closely-pitched regular screw threads, nominal length with M3-M8 are head (32)
12mm-22mm。
3. a kind of self-pierce riveting equipment, which is characterized in that the application semi-hollow as claimed in claim 1 or 2 with fastening thread is certainly
Riveting screw (3) is rushed, the internal jumper bar of the self-pierce riveting punch (1) being used cooperatively with it is equipped with described with fastening spiral shell for accommodating
The unthreaded hole of the semi-hollow self-piercing riveting screw (3) of line, the unthreaded hole is worked in coordination with the thread head (32) top, for ensuring
Riveting molding process to disposition；The self-pierce riveting equipment further includes the embedding pressure being set on the outside of the self-pierce riveting punch (1)
Flange (2) and be in mold (6) under the self-pierce riveting that is oppositely arranged up and down with the blank holder (2), by upper layer plank (4) to be riveted
It is placed under the self-pierce riveting on mold (6) with lower layer plank (5) stacked on top, institute is driven by the self-pierce riveting punch (1)
It states blank holder (2) to move downward with after mold (6) molding under the self-pierce riveting, pushes the semi-hollow with fastening thread certainly
Riveting screw (3) is rushed so that forming mechanical mutual between the rivet body (31) and the upper layer plank (4) and lower layer's plank (5)
Lock, then the connection between thicker plank is realized by the thread mechanism of the thread head (32).
4. self-pierce riveting equipment according to claim 3, which is characterized in that the upper layer plank (4) and lower layer's plank (5)
One kind in material selection high-strength light alloy, high-strength steel sheet, low-intensity carbon steel or nonmetallic composite；It is described thicker
Plank refers to the poor metal material of plasticity or nonmetallic materials.
5. self-pierce riveting equipment according to claim 4, which is characterized in that the upper layer plank (4) and lower layer's plank (5)
Plate thickness is 2mm-6mm, and the plate thickness of the thicker plank is 4mm-16mm.
6. a kind of method of application self-pierce riveting equipment riveting multi-layered board as claimed in claim 5, it is characterised in that including such as
Lower step：
S1, the upper layer plank (4) with riveting and lower layer's plank (5) stacked on top are placed under the self-pierce riveting on mold (6)；
S2, it is moved downward by the self-pierce riveting punch (1) the drive blank holder (2) and is closed with mold (6) under the self-pierce riveting
After mould, push the semi-hollow self-piercing riveting screw (3) with fastening thread so that the rivet body (31) with it is described on
It is formed between laminate material (4) and lower layer's plank (5) mechanical interlocked；
S3, again by the thread mechanism of the thread head (32) realize and thicker plank between connection, to realize multilayer
Connection of the plank within the scope of different-thickness.
7. it is according to claim 6 riveting multi-layered board method, which is characterized in that when riveting high-strength light alloy or
When high-strength steel sheet, the step S1 further includes that upper layer plank (4) and lower layer's plank (5) to be riveted are put into heating furnace to add
Heat makes its temperature be rapidly achieved preset solid solubility temperature, so that solute atoms is fully dissolved into matrix after keeping the temperature a period of time with
Saturated solid solution is obtained, then step will be ready on mold (6) under two layers of plank rapid transport to self-pierce riveting after solid solution
The self-piercing riveting of S2, then pressurize quenching is carried out to riveting part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810348196.1A CN108457954A (en) | 2018-04-18 | 2018-04-18 | A kind of semi-hollow self-piercing riveting screw and self-pierce riveting device and method with fastening thread |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810348196.1A CN108457954A (en) | 2018-04-18 | 2018-04-18 | A kind of semi-hollow self-piercing riveting screw and self-pierce riveting device and method with fastening thread |
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| Publication Number | Publication Date |
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| CN108457954A true CN108457954A (en) | 2018-08-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810348196.1A Pending CN108457954A (en) | 2018-04-18 | 2018-04-18 | A kind of semi-hollow self-piercing riveting screw and self-pierce riveting device and method with fastening thread |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114918361A (en) * | 2022-06-06 | 2022-08-19 | 山东大学 | Low-frequency auxiliary self-piercing riveting device and riveting method using same |
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| US20030175095A1 (en) * | 2000-08-25 | 2003-09-18 | Clarke Christopher James | Self-piercing rivet |
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| CN208153508U (en) * | 2018-04-18 | 2018-11-27 | 大连理工大学 | A kind of semi-hollow self-piercing riveting screw and self-pierce riveting equipment with fastening thread |
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| US20030175095A1 (en) * | 2000-08-25 | 2003-09-18 | Clarke Christopher James | Self-piercing rivet |
| CN201027754Y (en) * | 2007-03-29 | 2008-02-27 | 北华大学 | Self-piercing rivet used for plastic sheet metal |
| CN101829903A (en) * | 2010-06-08 | 2010-09-15 | 上海交通大学 | Single-sided self-piercing friction stub rivet welding device and connection method thereof |
| CN104384422A (en) * | 2014-10-15 | 2015-03-04 | 上海交通大学 | Self-piercing riveting device and method oriented to ultrahigh-strength steel and light metal |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114918361A (en) * | 2022-06-06 | 2022-08-19 | 山东大学 | Low-frequency auxiliary self-piercing riveting device and riveting method using same |
| CN114918361B (en) * | 2022-06-06 | 2023-08-22 | 山东大学 | Low-frequency auxiliary self-piercing riveting device and riveting method using same |
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