CN109514877A - A kind of brill riveting attachment device and bore riveting connection method - Google Patents
A kind of brill riveting attachment device and bore riveting connection method Download PDFInfo
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- CN109514877A CN109514877A CN201811570623.7A CN201811570623A CN109514877A CN 109514877 A CN109514877 A CN 109514877A CN 201811570623 A CN201811570623 A CN 201811570623A CN 109514877 A CN109514877 A CN 109514877A
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- rivet
- formed punch
- riveting
- locating piece
- nail
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- 238000009434 installation Methods 0.000 claims abstract description 7
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- 238000010008 shearing Methods 0.000 claims description 14
- 238000001125 extrusion Methods 0.000 claims description 7
- 238000005520 cutting process Methods 0.000 claims description 6
- 238000004080 punching Methods 0.000 claims description 6
- 229910001220 stainless steel Inorganic materials 0.000 claims description 4
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- 238000010521 absorption reaction Methods 0.000 claims description 3
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- 238000011161 development Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 229920000049 Carbon (fiber) Polymers 0.000 description 3
- 239000004917 carbon fiber Substances 0.000 description 3
- 238000006056 electrooxidation reaction Methods 0.000 description 3
- 239000011521 glass Substances 0.000 description 3
- 239000007769 metal material Substances 0.000 description 3
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 3
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Classifications
-
- 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
- B29C65/64—Joining a non-plastics element to a plastics element, e.g. by force
-
- 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
- B29C66/80—General aspects of machine operations or constructions and parts thereof
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Insertion Pins And Rivets (AREA)
Abstract
The invention discloses a kind of brill riveting attachment device and riveting connection method is bored, belongs to technical field of mechanical processing.The brill riveting attachment device, it include: compound blank holder, center has through-hole, and the compound blank holder two sides of the bottom are respectively equipped with locating slot, installation and the matched locating piece of the locating slot, the locating piece are horizontally moveable in the locating slot in the locating slot；Punch components comprising formed punch, the formed punch can pump in the through-hole of the compound blank holder；Rivet is mounted below the formed punch；Cavity plate has the accommodation groove that can accommodate distressed structure caused by the rivet.The present invention can not only realize effective connection between workpiece by the brill riveting scheme, and workpiece is not susceptible to brittle break, and whole mechanical connection efficiency is improved, and simple process.
Description
Technical field
The present invention relates to technical field of mechanical processing, in particular to a kind of brill riveting attachment device and brill riveting connection method.
Background technique
The contradiction of the development of auto industry and world energy sources, environmental problem increasingly fierceness, promotes automotive light weight technology theory
Development.High-strength steel, carbon fibre composite etc. have compared with high specific strength material on the body of a car application specific gravity year by year
Rise, is being realized rapidly from high-end vehicle to the transfer of middle-end vehicle.Typically such as carbon fibre composite, its own is had
The advantages that some crashworthiness energy absorption capacities are good, fatigue resistance is good, electrochemical corrosion resistant provides more extensively for it in the development of automobile industry
Wealthy space, and the development of xenogenesis lightweighting materials makes hot spot of its interconnection technique as current research.
Carbon fibre composite has with the common connection type of metal material at this stage: Nian Jie and mechanical connection, wherein machine
Tool connection includes being bolted, having rivet and without rivet etc. again.Although bonding have corrosion-resistant, simple process, at
This low advantage, but its bonding strength is relatively low compared with other way, while needing to treat connection surface progress during bonding
Pretreatment influences bonding strength, process is tedious to avoid interfacial failure occurs.
For mechanical connection, since carbon fibre composite ductility is insufficient, it can not shape, therefore adopt extensively at present
It is connected with drilling to carbon fibre composite, or the pre-manufactured hole when manufacturing carbon fibre composite part, achievees the purpose that connection；
Also, since carbon fibre composite plasticity is poor, formerly drilling carries out carbon fibre composite again and metal material riveted
Cheng Zhong, easily generation brittle break, can not form effective connector, and not only production technology is many and diverse, but also positions and produce to Joining Technology
It is raw to influence, increase production cost, seriously affects the efficiency of workpiece connection.
Summary of the invention
In order to solve problems in the prior art, the embodiment of the invention provides a kind of brill riveting attachment device and brill riveting connection sides
Method can not only realize effective connection between workpiece by the brill riveting scheme, and workpiece is not susceptible to brittle break, whole machine
Tool joint efficiency is improved, and simple process.
The technical solution is as follows:
On the one hand, a kind of brill riveting attachment device is provided, comprising:
Compound blank holder, center have through-hole, and the compound blank holder two sides of the bottom are respectively equipped with locating slot, described fixed
Installation and the matched locating piece of the locating slot, the locating piece are horizontally moveable in the locating slot in the slot of position；
Punch components comprising formed punch, the formed punch can pump in the through-hole of the compound blank holder；
Rivet is mounted below the formed punch；
Cavity plate has the accommodation groove that can accommodate distressed structure caused by the rivet.
Preferably, the locating slot is ladder locating slot, and the locating piece is and the matched ladder of the positioning groove shape
Locating piece.
Preferably, the locating piece is made of the lower protruding block and superposed upper mass for being located at lower part, the lower protruding block
Width be less than the upper mass width, the medial surface of the upper mass, the lower protruding block medial surface all have and the rivet
Nail leg portion can fix the curved-surface structure of positioning.
Preferably, the formed punch is the formed punch with absorption rivet function, and/or, the rivet is stainless steel material
Rivet, and/or, the nail leg portion of the rivet has 3 or 4 nail leg blades.
Preferably, the head of a nail of the rivet has crisscross grooves, and the formed punch bottom end has to be matched with the crisscross grooves
Cross protrusion.
Preferably, the accommodation groove of the cavity plate includes curved surface boss and annular chamber, and the curved surface boss is located at the accommodating
The center of slot, the annular chamber are made of the curved surface boss surface and the peripheral curved side wall of the accommodation groove.
On the other hand, the brill riveting connection method that riveting attachment device is bored described in a kind of any of the above-described scheme is provided, it is described
Method includes:
Two plates to be riveted are placed on cavity plate, compound blank holder is driven to move downward, compress two plates, and be sent into
Rivet, formed punch are pushed rivet to the upper surface of top plate, are limited using locating piece to rivet, so that rivet is same with formed punch
Axis degree is in acceptability limit；
Starting formed punch rotation moves down, and by control formed punch revolving speed and feed speed, so that rivet is drilled on the plate of top, directly
Lower sheet upper surface is arrived to the nail leg portion bottom end of rivet；
Outer shifting locating piece, the drawing velocity by controlling formed punch push rivet to move down carry out self-piercing riveting, until rivet
It turns up to form rivet in nail leg portion；
When formed punch reaches after bottom dead center, formed punch release moves upwards backhaul, removes the riveting parts of completion.
Preferably, the formed punch revolving speed is calculated by following formula:
Wherein, n is formed punch revolving speed；k0For formed punch revolving speed safety coefficient；V0For the cutting speed of rivet material；Γ0For rivet
The shearing strength of material；Γ1For the shearing strength of top plate；L is that rivet follows closely leg outer diameter；C is the aperture of institute, rivet nail leg portion
Slot actual quantity；c0For institute, rivet nail leg portion opening slot benchmark quantity.
Preferably, the feed speed is calculated by following formula:
Wherein, f is feed speed；k1For feed speed safety coefficient；f0For the standard amount of feeding；σasFor being permitted for top plate
Use extrusion stress.
Preferably, the drawing velocity is calculated by following formula:
Wherein, v is drawing velocity；K is drawing velocity safety coefficient；L is that rivet follows closely leg outer diameter；δ1For top plate thickness
Degree；δ2For lower sheet thickness；Γ2For lower sheet shearing strength；A is the accommodation groove longitudinal section area of cavity plate；σbsFor lower part
The extrusion stress allowable of plate；T is the punching stroke time.
Technical solution provided in an embodiment of the present invention has the benefit that
1, by have both positioning and flanging function compound blank holder, continuously realize drill, riveting function punch components,
Accommodation groove with distressed structure caused by accommodating rivet realizes drilling riveting integration, leads to during drilling
Rationally control formed punch revolving speed and feed speed are crossed, rivet needs to provide greater impact power just during solving existing self-piercing riveting
Can complete penetration some as carbon fibre composite plate etc. material workpiece the problem of；
2, can guarantee brittleness will not occur during carbon fibre composite twist drill hole by drilling riveting integration broken
It is bad, avoid damage to the good mechanical property of material itself；
3, the problems such as directly riveting after drilling simultaneously, avoiding the riveting repositioning in substep drilling riveting process, is reduced
Processing step and production cost improve riveting efficiency.
Therefore, brill riveting attachment device provided in an embodiment of the present invention and brill riveting connection method can be applied to carbon fiber composite
Expect between workpiece and metal works, between polymer matrix composites workpiece and metal plate, between glass pieces and metal works or
Person is both to have broad application prospects in a variety of staking process between metal works in mechanical connection field.
Detailed description of the invention
To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment
Attached drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for
For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings other
Attached drawing.
Fig. 1 is brill riveting attachment device schematic cross-sectional view provided in an embodiment of the present invention and the work for starting to carry out brill riveting
State diagram；
Fig. 2 is the structural schematic diagram of compound blank holder in brill riveting attachment device provided in an embodiment of the present invention；
Fig. 3 is brill riveting attachment device schematic cross-sectional view provided in an embodiment of the present invention and the working condition for completing drilling
Figure；
Fig. 4 is the positioning block structure schematic diagram of compound blank holder in Fig. 2, shows side view structure, the section view knot of locating piece
Structure and plan structure；
Fig. 5 is the structural schematic diagram of rivet in Fig. 1, shows the plan structure of rivet, sectional structure and looks up structure；
Fig. 6 is the concrete structure schematic diagram of cavity plate in Fig. 1, shows the plan structure and sectional structure of cavity plate；
Fig. 7 is brill riveting attachment device schematic cross-sectional view provided in an embodiment of the present invention and the working condition for completing to bore riveting
Figure.
Description of symbols:
The compound blank holder of 1-, 11- through-hole, 12- locating slot, 13- locating piece, 131- lower protruding block, 132- upper mass 2- punching press
Component, 3- rivet, the 31- head of a nail, 311- crisscross grooves, 32- nail leg portion, 321- nail leg blade, 322- hole slot, 4- cavity plate, 41- hold
Set slot, 411- curved surface boss, 412- annular chamber, the top 5- plate, 6- lower sheet.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with attached in the embodiment of the present invention
Figure, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is only this
Invention a part of the embodiment, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art exist
Every other embodiment obtained under the premise of creative work is not made, shall fall within the protection scope of the present invention.
It should be noted that present invention description as described on the directions such as " top ", " lower part " be all based on it is shown in the drawings
The contextual definition of orientation or position, it is merely for convenience of description of the present invention and simplification of the description, rather than described in indication or suggestion
Device must be constructed and operated in a specific orientation, therefore be not considered as limiting the invention.In description of the invention
In, the meaning of " plurality " is two or more, unless otherwise specifically defined.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
To be mechanical connection, it is also possible to be electrically connected；It can be directly connected, can also can be indirectly connected through an intermediary
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood at this with concrete condition
Concrete meaning in invention.
Brill riveting attachment device provided in an embodiment of the present invention and riveting connection method is bored, by having both positioning and flanging function
Compound blank holder continuously realizes drill, the punch components for riveting function, the appearance with distressed structure caused by accommodating rivet
Slot is set, drilling riveting integration is realized, by rationally controlling formed punch revolving speed and feed speed, Neng Goubao during drilling
Brittle break will not occur in boring procedure for card carbon fibre composite plate, avoid damage to the good mechanical property of material itself
Energy；The problems such as directly riveting after drilling simultaneously, avoiding the riveting repositioning in substep drilling riveting process, reduces processing step
And production cost, improve riveting efficiency.Therefore, the brill riveting attachment device and connection method can be applied to carbon fibre composite work
Between part and metal works, between polymer matrix composites workpiece and metal plate, it is between glass pieces and metal works or same
It is to have broad application prospects in a variety of staking process between metal works in mechanical connection field.
Combined with specific embodiments below and attached drawing, to brill riveting attachment device provided in an embodiment of the present invention and riveting connection side is bored
Method elaborates.
Embodiment 1
Fig. 1 is brill riveting attachment device schematic cross-sectional view provided in an embodiment of the present invention and the work for starting to carry out brill riveting
State diagram.As shown in Figure 1, brill riveting attachment device provided in an embodiment of the present invention mainly include compound blank holder 1, punch components 2,
Rivet 3 and cavity plate 4.
Fig. 2 is the structural schematic diagram for boring compound blank holder in riveting attachment device that the embodiment of the present invention 1 provides, and is shown multiple
The sectional structure and plan structure of combined pressure flange.Fig. 3 is brill riveting attachment device sectional structure signal provided in an embodiment of the present invention
Figure and the working state figure for completing drilling.Fig. 4 is the positioning block structure schematic diagram of compound blank holder in Fig. 2, shows locating piece
Side view structure, sectional structure and plan structure.As shown in Figures 2 and 3, specifically, compound 1 center of blank holder has through-hole
11, compound 1 two sides of the bottom of blank holder are respectively equipped with locating slot 12, installation and the matched locating piece of locating slot 12 in locating slot 12
13, locating piece 13 is horizontally moveable in locating slot 12, realizes the fixing positioning of rivet 3.Preferably, compound blank holder 1 is circle
Column structure.
Preferably, locating slot 12 be ladder locating slot, locating piece 13 be with the matched ladder locating piece of 12 shape of locating slot,
It is arranged to this location structure, can be realized the more preferable positioning to rivet 3.As shown in Figure 1, Figure 2 and Figure 4, locating piece 13 is by position
Lower protruding block 131 and superposed upper mass 132 in lower part are constituted, and 131 width of lower protruding block is less than 132 width of upper mass, on
132 medial surface of portion's block, 131 medial surface of lower protruding block all have the curved-surface structure that positioning can be fixed with the nail leg portion of rivet 3.Here,
The inside of locating piece 13 refers to the side for fix to the nail leg portion of rivet 3 positioning, i.e., locating piece 13 as shown in Figure 3 is close
The side of rivet 3；The outside of locating piece 13 refers to far from the other side for fix oriented side, i.e., locating piece as shown in Figure 3
The other side relative to 13 inside of locating piece；Similarly, upper mass 132, lower protruding block 131 medial surface refer to the side close to rivet 3
Face, upper mass 132, lower protruding block 131 lateral surface refer to the side far from rivet 3.Furthermore it is preferred that in the outer of locating piece 13
The lateral surface of upper lateral part block 132 and the lateral surface of lower protruding block 131 are leveled up and down, in 132 downside of inside upper part block of locating piece 13
Face and 131 medial surface of lower protruding block constitute a notch, i.e., lower protruding block 131 is in addition to protruding from upper mass 132 in width direction, also in length
Rivet 3 fix on the inside of positioning on degree direction and protrudes from upper mass 132, so that a notch is formed, outside upper mass 132
Side and the lateral surface of lower protruding block 131 are leveled up and down, i.e., the lateral surface of the lateral surface Yu lower protruding block 131 of upper mass 132 is in height
It is generally aligned in the same plane on direction.The setting of this locating piece further improves the precision of positioning.
In addition, as shown in Figure 1, Figure 2 and Figure 4,132 medial surface of upper mass, 131 medial surface of lower protruding block all have and rivet 3
Nail leg portion can fix the curved-surface structure of positioning, the presence of curved-surface structure not only can guarantee that the fixing to rivet 3 positioned, but also be not easy
Damage the outer wall in rivet nail leg portion.Here the specific curved shape of curved-surface structure, curved surface angle or subsequent corrosion can be according to realities
Border situation is accordingly arranged, such as mainly can carry out corresponding matching setting according to rivet arrangement or size, and the present invention is implemented
Example does not limit it especially, it is preferable that curved-surface structure is set as unthreaded hole cylindrical inner wall structure.
Fig. 1 is returned, punch components 2 include the formed punch for carrying out drill to riveting plate to be drilled or workpiece, and formed punch is preferred
Ground is solid cylindrical configuration part.When carrying out boring riveter skill, formed punch is mounted on inside the through-hole 11 of compound blank holder 1, is rushed
Head can pump in through-hole 11, i.e., formed punch outer wall can be slided up and down along through-hole wall.It formed punch bottom end can be with riveting
3 installation of nail is fixed, and rivet 3 can be driven to rotate, and direction of rotation can be both rotated clockwise along as shown in Figure 1, can also
To be rotated in the counterclockwise direction.Preferably, formed punch bottom end has to install with lower section rivet 3 and matches and buckled or fixed
Bulge-structure, such as with the cross rib that matches of the rivet head of a nail with crisscross grooves.Additionally preferably, formed punch is with suction
The formed punch of attached rivet function, such as with magnet adsorption function, it can be between 3 head of a nail of formed punch bottom end and rivet of punch components
Magnetic adsorbability is generated, formed punch firmly adsorbs rivet 3, the fixed function between formed punch and rivet is further enhanced, so as to
Ensure the job stability for boring riveting attachment device.
It should be noted that punch components 2 are in addition to including formed punch, it further include driving device or driving mechanism, for driving
Formed punch is rotated down feeding, drills to the workpiece or plate of riveting to be drilled connection, and can move directly down and carry out punching press, i.e.,
As shown in Figure 1, the driving device or driving mechanism by punch components 2 drive formed punch to drive rivet 3, to top plate 5 under
Portion's plate 6 is implemented to bore riveting process.
About rivet 3, as previously mentioned, it is mounted below the formed punch of punch components 2, for top plate 5 and lower part
Plate 6 carries out boring riveting connection.Preferably, rivet 3 is the rivet of stainless steel material, is avoided to be related to sheet metal, carbon fiber multiple
When boring riveting electrochemical corrosion occurs for condensation material plate or workpiece, and the rivet in addition to selecting stainless steel material can also use existing
Other in technology are any to can be avoided the other materials rivet that electrochemical corrosion occurs with metal material, carbon fibre composite.
In addition, also can according to need according to carrying out boring the top plate 5 of riveting and the difference of the respective material of lower sheet 6 to different materials
Matter rivet carries out Adaptive selection, and the embodiment of the present invention is not particularly limited to this.
Fig. 5 is the structural schematic diagram of rivet in Fig. 1, shows the plan structure of rivet, sectional structure and looks up structure.Such as
Shown in Fig. 1 and Fig. 5, it is preferable that the head of a nail 31 of rivet 3 has crisscross grooves 311, and above-mentioned formed punch bottom end has and crisscross grooves
311 matched cross protrusions, such structure setting enable to formed punch and the better Matching installation of rivet；Furthermore it is preferred that
The nail leg portion 32 of rivet 3 has 4 nail leg blades 321, and nail leg portion 32 opens up 4 hole slots (or being gap) 322, alternatively,
In other embodiments, the nail leg portion of rivet 3 at least has 3 nail leg blades and/or 3 hole slots, such structure setting energy
Enough ensure smoothly drills on boring jointed sheet material (typically such as carbon fibre composite plate), so that clast reasonable layout is in rivet 3
Nail leg portion 32 hole slot 322 in, while avoiding rivet manufacturing process excessively complicated and increasing process costs.Preferably, rivet 3
Using semi-hollow sunk head rivet, rivet nail leg portion uses four nail leg edging structures, and the diameter range of the rivet head of a nail is 5-8mm, nail
Leg outer diameter range is 4-6mm, and rivet total length is 5-8mm.
Fig. 1 is returned, cavity plate 4 is arranged in bottom, is oppositely arranged with the compound blank holder 1 of top, and riveting can be accommodated by having
The accommodation groove 41 of distressed structure caused by nail 3 rivets.Therefore, mainly for tool there are two effect, one is for disposing positioning to cavity plate 4
Plate or workpiece to be riveted, top plate 5 and lower sheet 6 as shown in figure 1, the other is being accommodated by opening up accommodation groove 41
Rivet 3 rivets caused distressed structure by boring riveter skill, successfully to realize the riveting of workpiece.So-called rivet is led
The distressed structure of cause, after the completion of referring to rivet, two workpiece downward projective structure of caused material under the action of riveting
Distressed structure in other words.Distressed structure caused by being riveted due to the concave shape of accommodation groove 41 with rivet 3 is related, according to
Difference bore riveter skills it is different bore riveting power or dynamics, rivet type, different workpieces plate rivet deformation it is different or multiple
Combined factors different rivet distressed structures caused by getting up, the specific concave shape of accommodation groove 41 cell wall structure shape in other words
Shape can carry out corresponding matching setting, as long as it is able to achieve the accommodating rivet that the embodiment of the present invention is declared according to different situations
Distressed structure caused by riveting, the embodiment of the present invention do not limit it especially.
Fig. 6 is the concrete structure schematic diagram of cavity plate in Fig. 1, shows the plan structure and sectional structure of cavity plate.Such as Fig. 1 and
Shown in Fig. 6, the accommodation groove 41 of cavity plate 4 includes curved surface boss 411 and annular chamber 412, and curved surface boss 411 is located in accommodation groove 41
Heart position, annular chamber 412 are made of 411 surface of curved surface boss and the peripheral curved side wall of accommodation groove 41, the revolution of annular chamber 412
The rotation conllinear of axis and curved surface boss 411.The ring-shaped chamber structure setting of annular chamber 412 is led convenient for accommodating rivet
The distressed structure of cause, the smooth surface of curved surface boss 411 can then avoid the extruding that may cause to distressed structure caused by riveting
Or damage.It is therefore preferred that curved surface boss 411 is set as conical boss, the cavity wall of annular chamber 412 be also provided with into it is smooth or
Smooth surface wall.Additionally preferably, the curved surface tangent line of curved surface boss 411 and the angle of vertical direction are 45 °, in addition to this, bent
The curved surface angle of face boss 411, bending degree and the curved surface angle of annular chamber 412, bending degree, may be used also according to actual needs
Using other possible any set-up modes, the embodiment of the present invention do not limit it especially in the prior art.
Fig. 7 is brill riveting attachment device schematic cross-sectional view provided in an embodiment of the present invention and the working condition for completing to bore riveting
Figure.
Brill riveting attachment device specific structure provided in an embodiment of the present invention is described in detail above, brill riveting is described below
Attachment device bore the operating method and the course of work of riveting connection.
Referring to Fig.1, Fig. 3 and Fig. 7 can be operated as follows:
As shown in Figure 1, top plate 5 to be riveted, lower sheet 6 are placed on cavity plate 4, compound blank holder 1 is driven
It moves downward, compresses two plates 5,6, and rivet 3 is sent by feed device, the formed punch of punch components 2 pushes rivet 3 to top
The upper surface of plate 5 limits rivet 3 using locating piece 13,13 crimping rivet 3 of locating piece, so that rivet 3 and formed punch are same
Axis degree is in acceptability limit；
As shown in figure 3, starting formed punch rotation moves down, by control formed punch revolving speed and feed speed, make rivet 3 in upper board
High quality drilling is completed on material 5, until 6 upper surface of lower sheet is arrived in the nail leg portion bottom end of rivet 3, i.e. formed punch comes downwards to rivet
When 3 nail leg portion bottom ends and 6 upper surface of lower sheet contact, feed-disabling；
Locating piece 13, i.e., be moved at predetermined station by outer shifting locating piece 13 to both sides, reserves 3 riveting location of rivet, leads to
The drawing velocity for crossing control formed punch pushes rivet 3 to move down carry out self-piercing riveting, until the nail leg portion of rivet 3 opens to be formed to periphery
Rivet, to form a firm locking structure between top plate 5, lower sheet 6；
As shown with 7, when formed punch reaches after bottom dead center, formed punch release moves upwards backhaul, removes the riveting parts of completion, prepares
It carries out boring riveter skill next time, that is, repeats the above process.
Preferably, in brill riveting attachment device provided in an embodiment of the present invention, the formed punch revolving speed of 2 formed punch of punch components is by following
Formula is calculated:
Wherein, n is formed punch revolving speed；k0For formed punch revolving speed safety coefficient, considers for safety factor, avoid formed punch revolving speed mistake
Greatly, by rationally controlling k0Value make formed punch revolving speed in safe range, preferably value range be 0.1~1；V0For rivet material
The cutting speed of matter；Γ0For the shearing strength of rivet material；Γ1For the shearing strength of top plate；L is outside rivet nail leg portion
Diameter；C is institute, rivet nail leg portion opening slot actual quantity；c0For institute, rivet nail leg portion opening slot benchmark quantity, value range is not
Less than 3.
Illustratively, k0Value 0.67, V0For the cutting speed of Q235 steel, value 5m/s；Γ0For the shearing resistance of Q235 steel
Intensity, value 98Mpa, c0Value 3, other parameters numerical value in addition to these parameters according to actually measured result or actual conditions come
It is fixed.
Preferably, in brill riveting attachment device provided in an embodiment of the present invention, the feed speed of 2 formed punch of punch components is by following
Formula is calculated:
Wherein, f is feed speed；k1For feed speed safety coefficient, considers for safety factor, avoid feed speed mistake
Greatly, by rationally controlling k1Value make feed speed in safe range, preferably value range be 0.1~1；f0For standard into
To amount；σasFor the extrusion stress allowable of top plate.
Illustratively, k1Value 0.1；f0Value 80mm/min, σasValue according to actually measured result or actual conditions come
It is fixed.
Preferably, in brill riveting attachment device provided in an embodiment of the present invention, the drawing velocity of 2 formed punch of punch components is by following
Formula is calculated:
Wherein, v is drawing velocity；K is drawing velocity safety coefficient, considers for safety factor, avoids drawing velocity mistake
Greatly, make drawing velocity in safe range by rationally controlling the value of k, preferably value range is 0.1~1；L is rivet nail leg
Portion's outer diameter；δ1For top plate thickness；δ2For lower sheet thickness；Γ2For lower sheet shearing strength；A is the accommodation groove of cavity plate
Longitudinal section area；σbsFor the extrusion stress allowable of lower sheet；T is the punching stroke time.
Illustratively, k value 0.67；T value 0.1-0.2s, the other parameters numerical value in addition to these parameters is according to practical survey
Result or actual conditions are obtained to determine.
All the above alternatives can form alternative embodiment of the invention using any combination, herein no longer
It repeats one by one.
Embodiment 2
Referring to Fig.1, Fig. 3 and Fig. 7, the brill riveting connection method that the embodiment of the present invention 2 provides, mainly comprises the steps that
As shown in Figure 1, top plate 5 to be riveted, lower sheet 6 are placed on cavity plate 4, compound blank holder 1 is driven
It moves downward, compresses two plates 5,6, and rivet 3 is sent by feed device, the formed punch of punch components 2 pushes rivet 3 to top
The upper surface of plate 5 limits rivet 3 using locating piece 13,13 crimping rivet 3 of locating piece, so that rivet 3 and formed punch are same
Axis degree is in acceptability limit；
As shown in figure 3, starting formed punch rotation moves down, by control formed punch revolving speed and feed speed, make rivet 3 in upper board
High quality drilling is completed on material 5, until 6 upper surface of lower sheet is arrived in the nail leg portion bottom end of rivet 3, i.e. formed punch comes downwards to rivet
When 3 nail leg portion bottom ends and 6 upper surface of lower sheet contact, feed-disabling；
Locating piece 13, i.e., be moved at predetermined station by outer shifting locating piece 13 to both sides, reserves 3 riveting location of rivet, leads to
The drawing velocity for crossing control formed punch pushes rivet 3 to move down carry out self-piercing riveting, until the nail leg portion of rivet 3 opens to be formed to periphery
Rivet, to form a firm locking structure between top plate 5, lower sheet 6；
As shown with 7, when formed punch reaches after bottom dead center, formed punch release moves upwards backhaul, removes the riveting parts of completion, prepares
It carries out boring riveter skill next time, that is, repeats the above process.
Preferably, above-mentioned formed punch revolving speed is calculated by following formula:
Wherein, n is formed punch revolving speed；k0For formed punch revolving speed safety coefficient, considers for safety factor, avoid formed punch revolving speed mistake
Greatly, by rationally controlling k0Value make formed punch revolving speed in safe range, preferably value range be 0.1~1；V0For rivet material
The cutting speed of matter；Γ0For the shearing strength of rivet material；Γ1For the shearing strength of top plate；L is outside rivet nail leg portion
Diameter；C is institute, rivet nail leg portion opening slot actual quantity；c0For institute, rivet nail leg portion opening slot benchmark quantity, value range is not
Less than 3.
Illustratively, k0Value 0.67, V0For the cutting speed of Q235 steel, value 5m/s；Γ0For the shearing resistance of Q235 steel
Intensity, value 98Mpa, c0Value 3, other parameters numerical value in addition to these parameters according to actually measured result or actual conditions come
It is fixed.
Preferably, above-mentioned feed speed is calculated by following formula:
Wherein, f is feed speed；k1For feed speed safety coefficient, considers for safety factor, avoid feed speed mistake
Greatly, by rationally controlling k1Value make feed speed in safe range, preferably value range be 0.1~1；f0For standard into
To amount；σasFor the extrusion stress allowable of top plate.
Illustratively, k1Value 0.1；f0Value 80mm/min, σasValue according to actually measured result or actual conditions come
It is fixed.
Preferably, above-mentioned drawing velocity is calculated by following formula:
Wherein, v is drawing velocity；K is drawing velocity safety coefficient, considers for safety factor, avoids drawing velocity mistake
Greatly, make drawing velocity in safe range by rationally controlling the value of k, preferably value range is 0.1~1；L is rivet nail leg
Portion's outer diameter；δ1For top plate thickness；δ2For lower sheet thickness；Γ2For lower sheet shearing strength；A is the accommodation groove of cavity plate
Longitudinal section area；σbsFor the extrusion stress allowable of lower sheet；T is the punching stroke time.
Illustratively, k value 0.67；T value 0.1-0.2s, the other parameters numerical value in addition to these parameters is according to practical survey
Result or actual conditions are obtained to determine.
All the above alternatives can form alternative embodiment of the invention using any combination, herein no longer
It repeats one by one.
In conclusion brill riveting attachment device provided in an embodiment of the present invention and brill riveting connection method, compared with prior art, tool
Have it is following the utility model has the advantages that
1, by have both positioning and flanging function compound blank holder, continuously realize drill, riveting function punch components,
Accommodation groove with distressed structure caused by accommodating rivet realizes drilling riveting integration, leads to during drilling
Rationally control formed punch revolving speed and feed speed are crossed, rivet needs to provide greater impact power just during solving existing self-piercing riveting
Can complete penetration some as carbon fibre composite plate etc. material workpiece the problem of；
2, can guarantee brittleness will not occur during carbon fibre composite twist drill hole by drilling riveting integration broken
It is bad, avoid damage to the good mechanical property of material itself；
3, the problems such as directly riveting after drilling simultaneously, avoiding the riveting repositioning in substep drilling riveting process, is reduced
Processing step and production cost improve riveting efficiency.
Therefore, brill riveting attachment device provided in an embodiment of the present invention and brill riveting connection method can be applied to carbon fiber composite
Expect between workpiece and metal works, between polymer matrix composites workpiece and metal plate, between glass pieces and metal works or
Person is both to have broad application prospects in a variety of staking process between metal works in mechanical connection field.
It should be understood that brill riveting attachment device provided by the above embodiment implement bore riveting linkage function when, only more than
The division progress of each functional module is stated for example, can according to need and in practical application by above-mentioned function distribution by difference
Functional module complete, i.e., the internal structure of device is divided into different functional modules, with complete it is described above whole or
Person's partial function.In addition, brill riveting connection method provided by the above embodiment and brill riveting attachment device embodiment belong to same design,
Its specific implementation process is detailed in embodiment of the method, and which is not described herein again.
Those of ordinary skill in the art will appreciate that realizing that all or part of the steps of above-described embodiment can pass through hardware
It completes, relevant hardware can also be instructed to complete by program, the program can store in a kind of computer-readable
In storage medium, storage medium mentioned above can be read-only memory, disk or CD etc..
The foregoing is merely presently preferred embodiments of the present invention, is not intended to limit the invention, it is all in spirit of the invention and
Within principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of brill riveting attachment device characterized by comprising
Compound blank holder, center have through-hole, and the compound blank holder two sides of the bottom are respectively equipped with locating slot, the locating slot
Interior installation and the matched locating piece of the locating slot, the locating piece are horizontally moveable in the locating slot；
Punch components comprising formed punch, the formed punch can pump in the through-hole of the compound blank holder；
Rivet is mounted below the formed punch；
Cavity plate has the accommodation groove that can accommodate distressed structure caused by the rivet.
2. the apparatus according to claim 1, which is characterized in that the locating slot is ladder locating slot, and the locating piece is
With the matched ladder locating piece of positioning groove shape.
3. the apparatus of claim 2, which is characterized in that the locating piece is by being located at the lower protruding block of lower part and being located at upper
The upper mass in portion is constituted, and the lower protruding block width is less than the upper mass width, the medial surface of the upper mass, the lower protruding block
Medial surface all have the curved-surface structure that positioning can be fixed with the nail leg portion of the rivet.
4. the apparatus according to claim 1, which is characterized in that the formed punch is the formed punch with absorption rivet function, and/
Or, the rivet is the rivet of stainless steel material, and/or, the nail leg portion of the rivet has 3 or 4 nail leg blades.
5. the apparatus according to claim 1, which is characterized in that the head of a nail of the rivet has crisscross grooves, the formed punch
Bottom end has and the matched cross protrusion of the crisscross grooves.
6. device according to any one of claims 1 to 5, which is characterized in that the accommodation groove of the cavity plate includes that curved surface is convex
Platform and annular chamber, the curved surface boss are located at the center of the accommodation groove, and the annular chamber is by the curved surface boss surface
It is constituted with the peripheral curved side wall of the accommodation groove.
7. according to claim 1 to any one of 6 brill riveting connection methods for boring riveting attachment device, which is characterized in that the side
Method includes:
Two plates to be riveted are placed on cavity plate, compound blank holder is driven to move downward, compress two plates, and be sent into riveting
Nail, formed punch are pushed rivet to the upper surface of top plate, are limited using locating piece to rivet, so that rivet is coaxial with formed punch
Degree is in acceptability limit；
Starting formed punch rotation moves down, and by control formed punch revolving speed and feed speed, rivet is made to drill on the plate of top, until riveting
Lower sheet upper surface is arrived in the nail leg portion bottom end of nail；
Outer shifting locating piece, the drawing velocity by controlling formed punch pushes rivet to move down carry out self-piercing riveting, until the nail leg of rivet
It turns up to form rivet in portion；
When formed punch reaches after bottom dead center, formed punch release moves upwards backhaul, removes the riveting parts of completion.
8. the method according to the description of claim 7 is characterized in that the formed punch revolving speed is calculated by following formula:
Wherein, n is formed punch revolving speed；k0For formed punch revolving speed safety coefficient；V0For the cutting speed of rivet material；Γ0For rivet material
Shearing strength；Γ1For the shearing strength of top plate；L is that rivet follows closely leg outer diameter；C is real for institute, rivet nail leg portion opening slot
Border quantity；c0For institute, rivet nail leg portion opening slot benchmark quantity.
9. the method according to the description of claim 7 is characterized in that the feed speed is calculated by following formula:
Wherein, f is feed speed；k1For feed speed safety coefficient；f0For the standard amount of feeding；σasAllowable for top plate is squeezed
Compression.
10. method according to claim 8 or claim 9, which is characterized in that the drawing velocity is calculated by following formula:
Wherein, v is drawing velocity；K is drawing velocity safety coefficient；L is that rivet follows closely leg outer diameter；δ1For top plate thickness；δ2
For lower sheet thickness；Γ2For lower sheet shearing strength；A is the accommodation groove longitudinal section area of cavity plate；σbsFor lower sheet
Extrusion stress allowable；T is the punching stroke time.
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| CN201811570623.7A CN109514877A (en) | 2018-12-21 | 2018-12-21 | A kind of brill riveting attachment device and bore riveting connection method |
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| CN201811570623.7A CN109514877A (en) | 2018-12-21 | 2018-12-21 | A kind of brill riveting attachment device and bore riveting connection method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110410399A (en) * | 2019-07-05 | 2019-11-05 | 浙江理工大学 | A kind of embedded deformation connection method |
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