CN208778417U - A kind of composite material connector - Google Patents
A kind of composite material connector Download PDFInfo
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- CN208778417U CN208778417U CN201821300877.2U CN201821300877U CN208778417U CN 208778417 U CN208778417 U CN 208778417U CN 201821300877 U CN201821300877 U CN 201821300877U CN 208778417 U CN208778417 U CN 208778417U
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Abstract
The utility model discloses a kind of composite material connector, which includes the substrate being fixedly connected and penetrating rod, and the first workpiece is fixedly connected with substrate, and penetrating rod is fixedly connected after passing through second workpiece with second workpiece.It is fixedly connected by the first workpiece of connector with second workpiece, the shape of substrate can be plane or curved surface, it is consistent with the stationary plane change in shape trend of the first workpiece, so that the designability of connector is strong, can meet the needs of different form Hybrid connections, because the connection area of substrate and the first workpiece is big, so that bonding strength improves.
Description
[technical field]
The utility model belongs to composite material connector field, and in particular to a kind of composite material connector.
[background technique]
FRP (fibre reinforced composites) is mainly made of reinforcement and matrix.The drilling and interconnection technique of composite material
It is the key that its application technology.Current technology means are mainly that fibre reinforcement and resin matrix are according to default curing cycle
And technological forming, it is then machined out, assembly connection, is finally made various product.
In general, the connection of composite material component mainly has bonding, mechanical connection, 3 kinds of welding.Welding is usually used in thermoplastic
Although the connection of property composite material, has the research of the emerging technologies such as friction spot welding in same with thermosetting compound material welding field, but still
There are more problems to restrict its application.The advantage that binder is glued is mitigation construction weight, and flat appearance is smooth, improves fatigue
Intensity, it is adaptable, it is most suitable for the connection of thin wall component, technique for sticking is simple, can shorten the production cycle.But it is glued and also exists
It is difficult to overcome the problems, such as, binder glue-joint strength is usually within 40MPa, in safety or the higher component manufacture of intensity requirement
In, simple splicing is difficult to meet the requirements.In order to guarantee structural strength rigidity requirement, setting mechanical connection or Hybrid connections are still needed to.
For splicing, mechanical connection uses rivet and bolt fastening, simple universal high-strength；It is not required to surface treatment and subsequent throwing
Light facilitates inspection, maintenance, recycling and repeated removal；Influence to environment such as temperature is insensitive.But there is also weight for mechanical connection
Increase, the problems such as machining process difficulty such as drilling is big after the molding of multiple material, stress is concentrated, being folded between this exterior part, Gao Gong
Requirement, the galvanic corrosion of difference are also the critical issue having to take into account that.
Therefore the main connection type of current composite material is the Hybrid connections being combined into one.Hybrid connections combine bonding
The advantage of agent bonding and mechanical connection, becomes the hot spot direction of composite material interconnection technique.Referring to Fig. 1, but existing fastener, company
Fitting is mostly standard component, although cost is relatively low, is unable to satisfy high-performance, the demand of personalized designs, significantly limits connection
The optional space of conceptual design, or even it is unable to complete design production task.Multiple material parts-moulding, machining drilling, splicing, machinery
Although the Hybrid connections design of connection can lift structure performance and safety, there is also complex steps, task difficulty is big, cost
The problems such as high, connector shape restriction, existing Hybrid connections multi-pass crosses the cumbersome step such as drilling, gluing, splicing, mechanical connection
It is rapid to complete.
[utility model content]
The shortcomings that the purpose of the utility model is to overcome the above-mentioned prior arts provides a kind of composite material connector.
The connector of the utility model is connected connected piece in conjunction with splicing, co-curing and mechanical connection by substrate and penetrating rod.
The shape of substrate follows the change in shape of connected piece, so that the design of connector is high, bonding strength is high.
In order to achieve the above objectives, the utility model is achieved using following technical scheme:
A kind of composite material connector, comprising: substrate and penetrating rod, the upper surface of substrate are first panel, lower surface
For second panel；First panel is fixedly connected with one end of penetrating rod；
When connector connects the first workpiece and second workpiece, substrate and the first workpiece are fixedly connected；The other end of penetrating rod
Across second workpiece, and penetrating rod is fixedly connected with second workpiece；First workpiece is stationary plane with respect to the face of second workpiece；Substrate
It is consistent with stationary plane for plane or curved surface.
Further improvement of the utility model is:
Preferably, one end of first panel and penetrating rod is integrally formed；Substrate and the first workpiece are fixedly connected with mode packet
It includes, second panel is fixedly connected with stationary plane or entire substrate is embedded in the first workpiece；Second panel and stationary plane pass through glue
It connects or co-curing is fixedly connected；Substrate is embedded in the first workpiece by co-curing.
Preferably, several through-holes are offered on substrate, the axis of each through-hole opens up the face of place's substrate perpendicular to it；
Any direction on one or two of first panel and second panel panel offers several grooves；Splicing or co-curing
In the process, form column binder in through-hole, form sheet form adhesive in groove, sheet form adhesive with a thickness of 0.5-4mm.
Preferably, second panel offers location hole in the bearing of penetrating rod, and location hole is from second panel deeply to passing through
Inside bar；Positioning protrusion is provided on first workpiece, positioning protrusion and location hole cooperation restricting substrate are in the position of the first workpiece
It sets.
Preferably, penetrating rod is connected through a screw thread with second workpiece, rivets or bending structure connects.
Preferably, the first workpiece is fixedly connected with second workpiece by several connectors；Substrate with a thickness of 0.2-
20mm。
Preferably, the material selection polymer or metal material of connector；First workpiece and second workpiece can be compound
Material or metal.
Preferably, connector by the heat fusing stacking method in 3D printing or selects domain laser powder sintering method to prepare,
Heat fusing stacking method is suitable for the preparation of polymer material, and domain laser powder sintering method is selected to be suitable for metal material and polymerization
The preparation of object material.
Compared with prior art, the utility model has the following beneficial effects:
The utility model discloses a kind of composite material connector, which includes the substrate being fixedly connected and runs through
Bar, the first workpiece are fixedly connected with substrate, and penetrating rod is fixedly connected after passing through second workpiece with second workpiece.By connector,
First workpiece is fixedly connected with second workpiece, and the shape of substrate can be plane or curved surface, the stationary plane shape with the first workpiece
Shape variation tendency is consistent, so that the designability of connector is strong, can meet the needs of different form Hybrid connections, because of substrate and
The connection area of one workpiece is big, so that bonding strength improves.
Further, the substrate of the utility model and penetrating rod are integrally formed, and bonding strength is high；Substrate can be with the first work
The surface of part connects, and can also be embedded in the first workpiece；When the connection of the surface of substrate and the first workpiece, by being glued or altogether
Solidification connection；When substrate is embedded in the first workpiece, pass through co-curing connecting substrate and the first workpiece；The utility model is total to
Solidification and it is glued through substrate realization, when overcoming traditional connectors and doing co-curing or built-in connection, occupied space is big, interlayer
Binding force is poor, it is difficult to the problem of realizing Hybrid connections.
Further, through-hole and groove are offered on the substrate of the utility model, so that being glued and shape during co-curing
At the binder of column or sheet, the shear strength and antistripping effect between substrate and the first workpiece are improved, only with single
The connection of high performance high strength can be realized in connector；The thickness of the sheet form adhesive of formation is thin, so that the occupancy body of connector
Product is small；The binder poorly conductive of formation can block electric current to generate, and then effectively avoid between metal and composite material
Electrochemical corrosion.
Further, the junction needed according to connected piece, is arranged positioning protrusion, second panel is extremely on the first workpiece
Penetrating rod opens up location hole, and restricting substrate is in the position of the first workpiece in protrusion insertion location hole.
Further, the penetrating rod of the utility model is connected through a screw thread with second workpiece, rivets or bending structure connects,
Belong to easy-operating mechanical connection manner constraint, simplify the Joining Technology of second workpiece and the first workpiece, bonding strength is high, makes
With simplicity, the cumbersome process flow such as complicated machining, assembly when can avoid connecting between the first workpiece and second workpiece.
Further, the first workpiece of the utility model is connected with second workpiece by several connectors, the use of connector
Quantity can be determined according to factors such as the size of the first workpiece and second workpiece, size and bonding strength demands, enhance the first work
Attachment force between part and second workpiece.The thickness of substrate is limited to 0.2-20mm, and substrate thickness is thin for existing connector
And range of choice is big, it specifically can be true according to the bonding strength demand of the thickness of the first workpiece and the first workpiece and second workpiece
It is fixed.
Further, the connector material of the utility model can be polymer or metal material, and connected piece can be
Composite material or metal, material selection and manufacturing process and equipment selection are closely related, and production is adaptable, and designability is good.
Further, the connector of the utility model by the heat fusing stacking method (FDM) in 3D printing or selects domain to swash
The preparation of light powder sintering method (SLS) method, realizes the manufacture of connector rapid customization, step is simple, and material compatibility is good
It is good.
[Detailed description of the invention]
Fig. 1 is the utility model connector and the first workpiece connection status and existing connector and the first workpiece connection status
Structure Comparison figure；
Fig. 2 is the connector positive direction three dimensional structure diagram that penetrating rod is bending structure；
Fig. 3 is the connector reverse direction three dimensional structure diagram that penetrating rod is bending structure；
Fig. 4 is that penetrating rod is the connecting-piece structure schematic diagram being threadedly coupled；
Fig. 5 is the connecting-piece structure schematic diagram that penetrating rod is riveting；
Fig. 6 is the positive direction three dimensional structure diagram that connector connects the first workpiece and second workpiece；
Fig. 7 is the reverse direction three dimensional structure diagram that connector connects the first workpiece and second workpiece；
Wherein: 1- substrate；2- penetrating rod；3- first panel；4- second panel；The first workpiece of 5-；6- second workpiece；7- is solid
Determine face；8- through-hole；9- groove；10- location hole.
[specific embodiment]
The utility model is described in further detail with reference to the accompanying drawing:
Referring to figs. 2 and 3, the utility model discloses a kind of composite material connector, connector ontology includes substrate 1
With penetrating rod 2, the upper surface of substrate 1 is first panel 3, and lower surface is second panel 4, one end of first panel 3 and penetrating rod 2
It is fixedly connected；First workpiece 5 and second workpiece 6 are connected piece, and on the first workpiece 5 and the opposite face of second workpiece 6 is to fix
Face 7；Several through-holes 8 are offered on substrate 1, the axis of each through-hole 8 opens up the face of place's substrate 1 perpendicular to it；First face
Several grooves 9 are offered along any direction for being parallel to substrate 1 on plate 3 or second panel 4.Second panel 4 is in penetrating rod 2
Bearing offers location hole 10, and location hole 10 gos deep into from second panel 4 to penetrating rod 2, and location hole 10 can be pin
Hole, threaded hole or special impression etc.；Positioning protrusion, positioning protrusion and the cooperation limitation base of location hole 10 are set on first workpiece 5
Plate 1 is in the position of the first workpiece 5.The material selection polymer or metal material of connector；6 energy of first workpiece 5 and second workpiece
It is enough composite material or metal.
When connector connects the first workpiece 5 and second workpiece 6, the stationary plane 7 and second panel 4 of the first workpiece 5 are fixed
Connection or entire substrate 1 are embedded in the first workpiece 5；When stationary plane 7 is fixedly connected with second panel 4, by being glued or consolidating altogether
Change is fixedly connected；When entire substrate 1 is embedded in the first workpiece 5, it is fixedly connected with substrate 1 with the first workpiece 5 by co-curing；
No matter which kind of connection type, premise be substrate 1 shape it is consistent with the shape of stationary plane 7, be plane or curved surface, guarantee substrate 1
Big with the fitting area of the first workpiece 5, bonding strength is high, and the thickness range of substrate 1 is 0.2-20mm；Several on substrate 1
Through-hole 8 during being fixedly connected, is capable of forming column binder or sheet form adhesive, the thickness of sheet form adhesive with groove 9
For 0.5-4mm；Binder is mostly resin or adhesive, therefore forms the column of resin or adhesive or the chimera of sheet, is mentioned
The high positioning and antistripping effect of substrate 1.
Referring to fig. 2, one end of Fig. 3, Fig. 4 and Fig. 5 penetrating rod 2 and substrate 1 are integrally formed, and the other end passes through second workpiece 6
Afterwards, by the fixed penetrating rod 2 of mechanical connection manner and second workpiece 6, mechanical connection manner includes being threadedly coupled (Fig. 4), riveting
(Fig. 5) or bending structure connect (Fig. 2 and Fig. 3), and bending structure is that penetrating rod 2 passes through the part of second workpiece 6 into a bent shape；When
When the material of connector is metal material, mechanical connection manner can be any one；When the material of connector is polymer,
Mechanical connection manner is only threaded connection or riveting, if the material of connector is polymer and selects riveting and second workpiece 6
When connection, the material of second workpiece 6 needs for composite material.
Connector manufacture is in addition to can be used the injection molding of traditional metal connecting piece, plastic fastening, pouring, the techniques such as punching press
Outside, the utility model using in 3D printing technique heat fusing stacking method (FDM), select domain laser powder sintering method (SLS)
Complete manufacture.Wherein FDM is suitable for the manufacture of high polymer or polymeric blends, such as ABS/PLA/PC/ nylon/pp and its mixing
Object；The 3D printing that SLS is suitable for metal, alloy and polymer is processed；Customization to realize complicated high-performance connector is quick
Preparation.
A kind of method for manufacturing above-mentioned composite material connector using FDM-3D printing technique, the steps include:
A completes connecting-piece structure design with 3 d modeling software；
Connector three-dimensional digital model is directed into Slice Software care with stl format and completes slice by b；
Slice result is imported FDM printer with G-code format, completes printing by c.
In addition, using SLS technique manufacture metal material connector in addition to the heating of technique itself, feed system difference, it is preceding
Treatment process is substantially consistent with FDM.It follows that quickly manufactured using the customization that 3D printing technique realizes connector, it is excellent
Gesture is obvious.
Referring to Fig. 6 and Fig. 7, the connector of the utility model connects the specific steps of the first workpiece 5 and second workpiece 6 such as
Under:
S1, connector positioning: it realizes that the positioning of connector is placed by location hole 10, first will be placed on type substrate 1
Interlayer, stationary plane 7 or the die face of workpiece 5；
When second panel 4 is fixedly connected with the first workpiece 5, substrate 1 is positioned by S2, connecting substrate 1 and the first workpiece 5:a.
It places on stationary plane 7, second panel 4 and stationary plane 7 is fixedly connected with by co-curing or splicing；When substrate 1 is embedded in the first work
When 5 inside of part, substrate 1 is placed on the material interlayer of the first workpiece 5, by co-curing that substrate 1 is fixedly embedded in the first workpiece 5
It is internal；When using joint model, rationally controls adhesive technology and make the through-hole 8 and groove 9 of adhesive filling substrate 1, realize base
The link enhancement of plate 1 and positioning, bondline thickness 0.5-4mm, can effectively avoid electrochemical corrosion；
S3, connection penetrating rod 2 and second workpiece 6:a, are spirally connected: second workpiece 6 is passed through through head 2, it is complete with fastener head nut
At being bolted；B, penetrating rod 2 turn down, and fasten second workpiece 6；Fastening is realized in c, the riveting of 2 end of penetrating rod.
Below by specific embodiment Demonstrate Design and manufacture the connector that a kind of FDM-3D printing prepares composite material.
Embodiment 1:
Connector the selection of material is that (acrylonitrile, 1,3-butadiene, the grafting of three kinds of monomers of styrene are total by ABS in the example
Polymers), components manufacture is completed using FDM-3D printing technique.The connector of the bending fastening of penetrating rod 2 with type substrate 1 is real
Example model is as shown in Figures 2 and 3
The example personalized designs show themselves in that
A, substrate: 1 thickness 2mm of substrate, the different through-hole 8 of setting size shape, depth are the groove 9 of 1mm, the connector
It can be used for composite material surface splicing or the pre-buried co-curing of composite material blank interlayer.
B, penetrating rod: location hole 10 is opened in the bottom of second panel 4 to penetrating rod 2, can be positioned at multiple material or die face, another
It is attached to 6 surface of second workpiece after the bending of end, to realize fastening；It is constrained using bending, structure is simple, is suitable for being glued and pre-
Co-curing is buried, the Hybrid connections structural strength between composite laminated plate is effectively increased.
The utility model discloses a kind of composite material connecting-piece structures of 3D printing technique preparation, belong to composite material
Field.The connecting-piece structure is made of substrate and penetrating rod, and the substrate is placed in composite inner interlayer or surface, structure
With size in combination with actual demand flexible design, settable through-hole and groove；Described penetrating rod one end is connected firmly with substrate, the other end
For fastener head, location hole, screw thread or bending structure processed outside penetrating rod can be opened up in the inside of penetrating rod substrate side.This is practical
The novel material system on probation that such connector is also disclosed and its 3D printing manufacturing technology, realize complicated high-performance connector
Customization quickly prepare.The utility model has the beneficial effects that connector designability is strong, rapid shaping, material are customized
Type selecting space is big, and special base plate structure form can realize that the surface of connector and composite material is pre-buried total with type splicing or interlayer
Solidification, the slotted hole structure of substrate have played excellent positioning and humidification；Connecting rod Internal hole positioning, outside can be achieved to be spirally connected,
It rivets, be clamped a variety of mechanical connection modes.The utility model improves connecting-piece structure intensity, and co-curing avoids machine and adds work
Industry, Hybrid connections overcome galvanic corrosion, and it is a kind of that 3D printing and wider adaptability for materials, which realize customization quickly manufacture,
Advanced fine positioning high-performance Hybrid connections structure and its manufacturing technology.
As seen from Figure 1, it when the utility model overcomes traditional connectors and does co-curing or built-in connection, occupies empty
Between it is big, inter-layer bonding force is poor, it is difficult to which it is strong to greatly improve shearing with the hole slot structure of type substrate for the problem of realizing Hybrid connections
Degree, only can be realized the Hybrid connections of high performance high strength with single connector.It is different that customization is realized using 3D printing technique
The quick manufacture of shape connector, and material compatibility is good, advantageously reduces cost, meets the differentiation need of different connection structures
It asks.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Within the spirit and principle of utility model, any modification, equivalent replacement, improvement and so on should be included in the utility model
Protection scope within.
Claims (8)
1. a kind of composite material connector characterized by comprising substrate (1) and penetrating rod (2), the upper surface of substrate (1)
For first panel (3), lower surface is second panel (4)；First panel (3) is fixedly connected with one end of penetrating rod (2)；
When connector connects the first workpiece (5) and second workpiece (6), substrate (1) is fixedly connected with the first workpiece (5)；Penetrating rod
(2) the other end passes through second workpiece (6), and penetrating rod (2) is fixedly connected with second workpiece (6)；First workpiece (5) opposite the
The face of two workpiece (6) is stationary plane (7)；Substrate (1) is plane or curved surface, consistent with stationary plane (7).
2. a kind of composite material connector according to claim 1, which is characterized in that first panel (3) and penetrating rod
(2) one end is integrally formed；Substrate (1) includes second panel (4) and stationary plane with the mode that is fixedly connected of the first workpiece (5)
(7) it is fixedly connected or entire substrate (1) is embedded in the first workpiece (5)；Second panel (4) and stationary plane (7) by being glued or
Co-curing is fixedly connected；Substrate (1) is embedded in the first workpiece (5) by co-curing.
3. a kind of composite material connector according to claim 2, which is characterized in that offered on substrate (1) several
A through-hole (8), the axis of each through-hole (8) open up the face at place substrate (1) perpendicular to it；First panel (3) and second panel
One or two of (4) any direction on panel offers several grooves (9)；During splicing or co-curing, through-hole
(8) form column binder in, form sheet form adhesive in groove (9), sheet form adhesive with a thickness of 0.5-4mm.
4. a kind of composite material connector according to claim 1, which is characterized in that second panel (4) is in penetrating rod
(2) bearing offers location hole (10), and location hole (10) is deeply internal to penetrating rod (2) from second panel (4)；First work
Positioning protrusion, positioning protrusion and location hole (10) cooperation restricting substrate (1) are provided on part (5) in the position of the first workpiece (5).
5. a kind of composite material connector according to claim 1, which is characterized in that penetrating rod (2) and second workpiece
(6) be connected through a screw thread, rivet or bending structure connection.
6. a kind of composite material connector according to claim 1, which is characterized in that the first workpiece (5) and the second work
Part (6) is fixedly connected by several connectors；Substrate (1) with a thickness of 0.2-20mm.
7. a kind of composite material connector described in -6 any one according to claim 1, which is characterized in that the material of connector
Material selects polymer or metal material；First workpiece (5) and second workpiece (6) can be composite material or metal.
8. a kind of composite material connector according to claim 7, which is characterized in that connector passes through the heat in 3D printing
Fused deposition method selects domain laser powder sintering method to prepare, and heat fusing stacking method is suitable for the preparation of polymer material,
Domain laser powder sintering method is selected to be suitable for the preparation of metal material and polymer material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821300877.2U CN208778417U (en) | 2018-08-13 | 2018-08-13 | A kind of composite material connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821300877.2U CN208778417U (en) | 2018-08-13 | 2018-08-13 | A kind of composite material connector |
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| Publication Number | Publication Date |
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| CN208778417U true CN208778417U (en) | 2019-04-23 |
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ID=66156667
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| CN201821300877.2U Active CN208778417U (en) | 2018-08-13 | 2018-08-13 | A kind of composite material connector |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108980160A (en) * | 2018-08-13 | 2018-12-11 | 西安增材制造国家研究院有限公司 | A kind of composite material connector and its application method |
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2018
- 2018-08-13 CN CN201821300877.2U patent/CN208778417U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108980160A (en) * | 2018-08-13 | 2018-12-11 | 西安增材制造国家研究院有限公司 | A kind of composite material connector and its application method |
| CN108980160B (en) * | 2018-08-13 | 2024-01-30 | 西安增材制造国家研究院有限公司 | Connecting piece for composite material and application method thereof |
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