CN209077697U - Electromagnetism self-piercing riveting device - Google Patents
Electromagnetism self-piercing riveting device Download PDFInfo
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- CN209077697U CN209077697U CN201821769585.3U CN201821769585U CN209077697U CN 209077697 U CN209077697 U CN 209077697U CN 201821769585 U CN201821769585 U CN 201821769585U CN 209077697 U CN209077697 U CN 209077697U
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Abstract
The utility model relates to a kind of electromagnetism self-piercing riveting devices, including rack, the upper rivet model being arranged on the rack, lower rivet model, for driving upper rivet model to carry out the power mechanism of sleeving and riveting, the power mechanism includes the not closed cylinder in lower end, cylinder is vertically arranged, the upper end is connected with rack, coil is from top to bottom disposed in cylinder, drive piece, coil is fitted closely with driving piece, cylinder lower end is provided with backing plate, through-hole is provided in the middle part of backing plate, backing plate downside is provided with the axle sleeve concentric with through-hole, upper rivet model is rivet rod, rivet rod upper end is provided with the rotary table of the coaxial heart, formed punch is arranged in rivet rod lower end, rotary table is located at below driving piece, rivet rod lower end wears axle sleeve, spring is arranged on rivet rod, spring one end is against rotary table, the other end is against backing plate, lower rivet model is located at immediately below axle sleeve, the present apparatus is using electromagnetism power drive Mode, curring time is short, and riveting property is strong, and rivet force and riveting energy can realize accurate control by pressure regulation.
Description
Technical field
The utility model relates to a kind of electromagnetism self-piercing riveting devices.
Background technique
Self-piercing riveting is a kind of to realize of the same race or dissimilar material joining novel mechanical interconnection technique using semitubular rivet.
The basic principle is that special material or the rivet of shape under the action of stake, after piercing through top layer plate, cooperate the anti-of cavity plate
Effect forms undercut design with bottom sheets, achievees the purpose that mechanical self-latching.Self-piercing riveting has good relative to traditional spot welding
Good bonding strength and energy-absorbing effect, has been widely used for steel-aluminium in high-end automobile, the connection of aluminium-aluminium, gradually at present
It is applied to low and middle-end automobile and new-energy automobile field.China Patent Publication No.: CN205464139U discloses a kind of semi-hollow
Rivet self-piercing riveting device is made of multi-functional formed punch, cavity plate and rivet transportation system, can be real by programming and SERVO CONTROL
Existing rivet automatically supplies.Patent publication No.: CN107377787A discloses a kind of self-piercing riveting equipment of adjustable riveting mould position
And method, the plan-position of adjustable upper and lower riveting mould, when the connector of large area is positioned and is placed near lower rivet model
When, realize that the self-pierce riveting to any position on connector connects.
Existing self-piercing riveting device is concentrated mainly on to the adjustment on self-piercing riveting device structure, but driving method is still adopted
Traditional electrical servo transmission, machine driving and hydraulic drive, the cost of device systems is relatively high, rivet at
Performance after shape cannot be promoted further, forming technology limitation.
Summary of the invention
The utility model proposes a kind of electromagnetism self-piercing riveting devices.
It is a kind of electromagnetism self-piercing riveting device that the utility model, which solves scheme used by technical problem, including rack, is set
Upper rivet model, lower rivet model, the power mechanism for driving upper rivet model progress sleeving and riveting on the rack is set, under the power mechanism includes
Hold not closed cylinder, cylinder is vertically arranged, and the upper end is connected with rack, be from top to bottom disposed in cylinder coil,
Piece is driven, coil is fitted closely with driving piece, and cylinder lower end is provided with backing plate, is provided with through-hole, backing plate downside in the middle part of backing plate
It is provided with the axle sleeve concentric with through-hole, upper rivet model is rivet rod, and rivet rod upper end is provided with the rotary table of the coaxial heart, rivet rod lower end
Formed punch is set, and rotary table is located at below driving piece, and rivet rod lower end wears axle sleeve, spring is arranged on rivet rod, spring one end is against circle
Platform, against backing plate, lower rivet model is located at immediately below axle sleeve the other end.
Further, the rack is at c-type, and rack includes upper transverse part, inferior transverse part, and upper transverse part, inferior transverse part one end are through connecting
Portion is connected, and cylinder is mounted on upper transverse part downside, and lower rivet model is mounted on inferior transverse part upper side, and upper transverse part upper side, which is provided with, to be hung
Ring, inferior transverse part upper side are provided with the counter sink to install lower rivet model, are threaded in the small diameter bore of counter sink lower end,
Lower rivet model includes riveting mould body, and middle part is provided with flange under riveting mould body, and middle part is provided with threaded rod under flange, threaded rod and heavy
The small diameter bore of head bore lower end is spirally connected, and flange is placed in the large diameter hole of counter sink upper end, upper rivet model and lower rivet model center pair
Together.
Further, cylinder upper end periphery is provided with flange, and connection through-hole A, upper transverse part downside are evenly distributed on flange
Face is correspondingly arranged on to be worn connection through-hole A and is connect with connecting screw hole spiral shell A with the connecting screw hole A that connect through-hole A and match, cylinder
Fixing screws locking on the rack, flange periphery is disposed radially the cable-through hole of a connection inner barrel, and two of coil connect
Line end is drawn by cable-through hole, and backing plate periphery is evenly distributed in connecting screw hole spiral shell B, and cylinder lower end is correspondingly arranged on and connect through-hole
The connecting screw hole B that B is matched, backing plate are worn connection through-hole B and are locked at cylinder with the connecting screw hole B lock-screw being spirally connected
On.
Further, axle sleeve includes sleeve, and sleeve upper end periphery is provided with flange, and flange is located in cylinder, sleeve lower end
It is pierced by by through-hole, sleeve lower end is provided with the square three-way groove for conveying rivet, and lower spring end is against flange.
Further, the driving piece is cylindrical copper body, drives piece and upper rivet model according to can be in cylinder along axial direction
Sliding.
Further, the coil is the circular disk for being tied with copper wire, is drawn in the outermost layer of coil there are two terminals, one
A terminals are connected with the anode of power-supply system, another terminals is connected with the cathode of power-supply system.
Further, the power-supply system includes capacitor, power supply, and capacitor is controlled to a power supply through transformer, capacitor
Device is connected with coil, and charge switch, rectifier and current-limiting resistance are provided in the connection line between capacitor and transformer,
Discharge switch, charge switch, discharge switch connection switch control cabinet are provided in connection line between capacitor and coil.
Compared with prior art, the utility model has the following beneficial effects: structure is simple, design is reasonable, using electromagnetism
The mode of power drive, curring time is short (Millisecond), and being loaded with for such high-speed is conducive to improve the connection of self-piercing riveting connector by force
Degree and fatigue life, rivet performance is made to be further improved；Rivet force and riveting energy can be by one-parameters (such as electricity
Pressure) realize accurate control, realize the self-piercing riveting under different condition, simple process, it is easy to accomplish the production of automation.
Detailed description of the invention
The utility model patent is further illustrated with reference to the accompanying drawing.
Fig. 1 is the structural schematic diagram of the present apparatus；
Fig. 2 is the structural schematic diagram of flange；
Fig. 3 is the structural schematic diagram of backing plate；
Fig. 4 is the structural schematic diagram of axle sleeve；
Fig. 5 is the structural schematic diagram of C-shaped frame；
Fig. 6 is the structural schematic diagram of lower rivet model；
Fig. 7 is the structural schematic diagram of power-supply system.
In figure:
1- hanging ring；2- rack；201- hanging ring connecting screw hole；202- connecting screw hole spiral shell A；203- upper transverse part；204- interconnecting piece；
205- inferior transverse part；206- counter sink；3- fixing screws；4- coil；5- drives piece；6- upper rivet model；601- rotary table；602- rivet rod；
7- compressed spring；8- cylinder；801- coil placing groove；802- connection through-hole A；803- flange；804- cable-through hole；805- installation
Chamber；806- connecting screw hole spiral shell B；9- backing plate；901- connection through-hole B；902- groove；903- through-hole；10- lock-screw；11- axis
Set；1101- flange；1102- sleeve；1103- square three-way groove；12- delivery sheet；13- self-punching rivet；14- upper junction plate；Under 15-
Connecting plate；16- lower rivet model；17- capacitor；18- transformer；19- power supply；20- rectifier；21- current-limiting resistance；22- charging is opened
It closes；23- switch control box；24- discharge switch.
Specific embodiment
The present invention will be further described below with reference to the accompanying drawings and specific embodiments.
As shown in figs. 1-7, a kind of electromagnetism self-piercing riveting device, including rack, the upper rivet model being arranged on the rack, lower riveting
Mould, the power mechanism for driving upper rivet model progress sleeving and riveting, the power mechanism includes the not closed cylinder of upper and lower end, cylinder
Body is vertically arranged, and the upper end is connected with rack, be from top to bottom disposed in cylinder coil, driving piece, coil one end with
Driving piece fits closely, and can to generate inductive loop as big as possible in driving piece, and then generate big electromagnetic repulsive force,
The coil other end is bonded with rack can also improve capacity usage ratio, so that coil is pressed in cylinder, the setting of cylinder lower end
There is backing plate, is provided with through-hole in the middle part of backing plate, backing plate downside is provided with the axle sleeve concentric with through-hole, and upper rivet model is rivet rod, riveting
Bar upper end is provided with the rotary table of the coaxial heart, and formed punch is arranged in rivet rod lower end, and rotary table is located at below driving piece, and rivet rod lower end is worn
Axle sleeve is arranged with spring on rivet rod, and spring one end is against rotary table, and against backing plate, lower rivet model is located at immediately below axle sleeve the other end.
In the present embodiment, middle part setting is pacified for accommodating the installation cavity of coil, driving piece, upper rivet model in cylinder upper end
The coil placing groove of coil is installed in top setting of behaveing affectedly.
In the present embodiment, for the rack at c-type, rack includes upper transverse part, inferior transverse part, upper transverse part, inferior transverse part one end warp
Interconnecting piece is connected, and cylinder is mounted on upper transverse part downside, and lower rivet model is mounted on inferior transverse part upper side, the setting of upper transverse part upper side
There is hanging ring, inferior transverse part upper side is provided with the counter sink to install lower rivet model, is machined in the small diameter bore of counter sink lower end
Screw thread, lower rivet model include riveting mould body, and middle part is provided with flange under riveting mould body, and middle part is provided with threaded rod, screw thread under flange
Bar and the small diameter bore of counter sink lower end are spirally connected, and flange is placed in the large diameter hole of counter sink upper end, upper rivet model and lower rivet model
Center alignment can be by rotating lower riveting according to the difference of the thickness of the upper connector and lower connector placed above lower rivet model
Mould adjusts the height between axle sleeve lower end surface and lower rivet model upper surface, the square three-way groove that self-punching rivet can be opened by axle sleeve lower part
It is sent to below upper rivet model, self-piercing riveting can be started.
In the present embodiment, cylinder upper end periphery is provided with flange, and connection through-hole A, upper transverse part are evenly distributed on flange
Downside, which is correspondingly arranged on, is worn connection through-hole A and and connecting screw hole with the connecting screw hole A that connect through-hole A and match, cylinder
On the rack, flange periphery is disposed radially the cable-through hole of a connection inner barrel to the locking of fixing screws that spiral shell A connects, and the two of coil
A terminals are drawn by cable-through hole, and backing plate periphery is evenly distributed in connecting screw hole spiral shell B, and cylinder lower end is correspondingly arranged on and connects
The connecting screw hole B that through-hole B is matched, backing plate are worn connection through-hole B and are locked at cylinder with the connecting screw hole B lock-screw being spirally connected
On body.
In the present embodiment, axle sleeve includes sleeve, and sleeve upper end periphery is provided with flange, and flange is located in cylinder, sleeve
Lower end is pierced by by through-hole, and sleeve lower end is provided with the square three-way groove for conveying rivet, and lower spring end is on the upside of flange, backing plate
Face is provided with the groove of accommodating flange.
In the present embodiment, the driving piece is cylindrical copper body, drive piece and upper rivet model according to can in cylinder edge
It slides axially.
In the present embodiment, the coil is the circular disk for being tied with copper wire, is drawn in the outermost layer of coil there are two wiring
End, a terminals are connected with the anode of power-supply system, another terminals is connected with the cathode of power-supply system.
In the present embodiment, the power-supply system includes capacitor, power supply, and capacitor is controlled to a power supply through transformer,
Capacitor is connected with coil, and charge switch, rectifier and current limliting are provided in the connection line between capacitor and transformer
Resistance is provided with discharge switch, charge switch, the control of discharge switch connection switch in the connection line between capacitor and coil
Case.
In use, operating according to the following steps:
Step 1: it according to energy required in riveting process and rivet force, determines the discharge voltage size of power-supply system, passes through
Transformer, predeterminated voltage；
Step 2: being closed charge switch by switch control box and charge to capacitor group, until charging terminates；
Step 3: discharge switch is closed by switch control box, is discharged coil, so that being generated around hot-wire coil
Strong pulsed magnetic field, driving piece can generate vortex close to the side of coil under the action of the magnetic field, the vortex in driving piece by
To the strong effect of coil magnetic field, lead to that electromagnetic repulsive force can be generated between coil and driving piece, driving piece is under that force
It moves downward；
Step 4: the driving piece moved downward pushes upper rivet model to move down rapidly, and upper rivet model is moved down compressed spring, compresses bullet
The elastic force of spring will first act on axle sleeve, and axle sleeve, which is moved down, carries out elastic blank holding to riveting parts, while upper rivet model moves down and matches with lower rivet model
It closes and completes self-piercing riveting；
Step 5: recoil of spring makes that piece and upper rivet model is driven to reset rapidly after the completion of riveting, makees for riveting next time
Prepare.
Present apparatus curring time is short (Millisecond), and being loaded with for such high-speed is conducive to improve the connection of self-piercing riveting connector by force
Degree and fatigue life, rivet performance is made to be further improved；
Present apparatus rivet force and riveting energy can be realized by one-parameter (such as voltage) accurately to be controlled, simple process, easily
In the production for realizing automation.If the thickness of the type of connector, connector, rivet size and rivet bar change,
It can directly pass through the size change riveting energy and rivet force for adjusting one-parameter (such as voltage), realize rushing under different condition certainly
Riveting.
The present apparatus has widened the process window of self-piercing riveting by the way of electromagnetism power drive.
Above-listed preferred embodiment has been further described the purpose of this utility model, technical solution and advantage,
It should be understood that the above is only the preferred embodiment of the utility model only, it is not intended to limit the utility model, it is all
Within the spirit and principles of the present invention, any modification, equivalent replacement, improvement and so on should be included in practical
Within novel protection scope.
Claims (7)
1. a kind of electromagnetism self-piercing riveting device, it is characterised in that: including rack, the upper rivet model being arranged on the rack, lower rivet model, use
The power mechanism of sleeving and riveting is carried out in driving upper rivet model, the power mechanism includes the not closed cylinder in lower end, and cylinder is vertically arranged,
The upper end is connected with rack, and coil, driving piece are from top to bottom disposed in cylinder, and coil is fitted closely with driving piece,
Cylinder lower end is provided with backing plate, is provided with through-hole in the middle part of backing plate, backing plate downside is provided with the axle sleeve concentric with through-hole, upper riveting
Mould is rivet rod, and rivet rod upper end is provided with the rotary table of the coaxial heart, and formed punch is arranged in rivet rod lower end, and rotary table is located at below driving piece,
Rivet rod lower end wears axle sleeve, and spring is arranged on rivet rod, and spring one end is located at against rotary table, the other end against backing plate, lower rivet model
Immediately below axle sleeve.
2. electromagnetism self-piercing riveting device according to claim 1, it is characterised in that: for the rack at c-type, rack includes upper
Transverse part, inferior transverse part, upper transverse part, inferior transverse part one end are connected through interconnecting piece, and cylinder is mounted on upper transverse part downside, lower rivet model installation
In inferior transverse part upper side, upper transverse part upper side is provided with hanging ring, and inferior transverse part upper side is provided with the countersunk head to install lower rivet model
Hole is threaded in the small diameter bore of counter sink lower end, and lower rivet model includes riveting mould body, and middle part is provided with convex under riveting mould body
Edge, middle part is provided with threaded rod under flange, and threaded rod and the small diameter bore of counter sink lower end are spirally connected, and flange is placed on counter sink
In the large diameter hole at end, upper rivet model and the alignment of lower rivet model center.
3. electromagnetism self-piercing riveting device according to claim 2, it is characterised in that: cylinder upper end periphery is provided with flange,
Be evenly distributed in connection through-hole A on flange, upper transverse part downside be correspondingly arranged on the connecting screw hole A that connect through-hole A and match,
Cylinder is worn connection through-hole A and the fixing screws connect with connecting screw hole spiral shell A are locked on the rack, and flange periphery is disposed radially
The cable-through hole of one connection inner barrel, two terminals of coil are drawn by cable-through hole, and backing plate periphery is evenly distributed in connection
Screw hole spiral shell B, cylinder lower end, which is correspondingly arranged on, is worn connection through-hole B simultaneously with the connecting screw hole B that connect through-hole B and match, backing plate
It is locked on cylinder with the connecting screw hole B lock-screw being spirally connected.
4. electromagnetism self-piercing riveting device according to claim 1 to 3, it is characterised in that: axle sleeve includes sleeve,
Sleeve upper end periphery is provided with flange, and flange is located in cylinder, and sleeve lower end is pierced by by through-hole, and sleeve lower end is provided with for defeated
The square three-way groove of rivet is sent, lower spring end is against flange.
5. electromagnetism self-piercing riveting device according to claim 4, it is characterised in that: the driving piece is cylindrical copper
Body drives piece and upper rivet model according to can slide axially in cylinder.
6. electromagnetism self-piercing riveting device according to claim 4, it is characterised in that: the coil is the annular for being tied with copper wire
Disk draws in the outermost layer of coil there are two terminals, and a terminals are connected with the anode of power-supply system, another terminals
It is connected with the cathode of power-supply system.
7. electromagnetism self-piercing riveting device according to claim 6, it is characterised in that: the power-supply system include capacitor,
Power supply, capacitor are controlled to a power supply through transformer, and capacitor is connected with coil, the connecting line between capacitor and transformer
Road is provided with charge switch, rectifier and current-limiting resistance, is provided with electric discharge in the connection line between capacitor and coil and opens
It closes, charge switch, discharge switch connection switch control cabinet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821769585.3U CN209077697U (en) | 2018-10-30 | 2018-10-30 | Electromagnetism self-piercing riveting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821769585.3U CN209077697U (en) | 2018-10-30 | 2018-10-30 | Electromagnetism self-piercing riveting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209077697U true CN209077697U (en) | 2019-07-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821769585.3U Expired - Fee Related CN209077697U (en) | 2018-10-30 | 2018-10-30 | Electromagnetism self-piercing riveting device |
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| CN (1) | CN209077697U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109079079A (en) * | 2018-10-30 | 2018-12-25 | 福州大学 | Electromagnetism self-piercing riveting device and clinching method |
-
2018
- 2018-10-30 CN CN201821769585.3U patent/CN209077697U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109079079A (en) * | 2018-10-30 | 2018-12-25 | 福州大学 | Electromagnetism self-piercing riveting device and clinching method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190709 Termination date: 20211030 |