EP3678922A1 - Materialoptimierter verbindungsknoten - Google Patents
Materialoptimierter verbindungsknotenInfo
- Publication number
- EP3678922A1 EP3678922A1 EP18769325.4A EP18769325A EP3678922A1 EP 3678922 A1 EP3678922 A1 EP 3678922A1 EP 18769325 A EP18769325 A EP 18769325A EP 3678922 A1 EP3678922 A1 EP 3678922A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- connection
- connection node
- connecting element
- central body
- node
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D27/00—Connections between superstructure or understructure sub-units
- B62D27/02—Connections between superstructure or understructure sub-units rigid
- B62D27/023—Assembly of structural joints
-
- 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
- B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
- B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
- B29C66/52—Joining tubular articles, bars or profiled elements
- B29C66/524—Joining profiled elements
- B29C66/5244—Joining profiled elements for forming fork-shaped connections, e.g. for making window frames or Y-shaped pieces
- B29C66/52441—Joining profiled elements for forming fork-shaped connections, e.g. for making window frames or Y-shaped pieces with two right angles, e.g. for making T-shaped pieces
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D27/00—Connections between superstructure or understructure sub-units
- B62D27/02—Connections between superstructure or understructure sub-units rigid
- B62D27/026—Connections by glue bonding
-
- 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
- B29C65/48—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/30—Vehicles, e.g. ships or aircraft, or body parts thereof
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y10/00—Processes of additive manufacturing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y80/00—Products made by additive manufacturing
Definitions
- the invention relates to a connection node and a system of the
- Connection node and at least a first connector body.
- Connection node includes a one-piece or multi-part
- Connection node center body a first connection element and at least one second connection element.
- the connection node can be produced at least partially by a generative method and / or a casting method.
- connection node it is therefore an object of any development to construct and dimension a component, such as a connection node, to be as lightweight as possible, stable and durable, and at a given place in one
- An object of the invention is to provide a connection node that is lightweight and compact. Another object is to provide a system comprising the connection node and at least one connector to be connected to the connection node.
- a first aspect of the invention relates to a system comprising a connection node and at least one first connection body, wherein the connection node
- connection node central body a one-part or multi-part connection node central body
- first connecting element for joining with the first connecting body and at least one second connecting element for joining with a second
- Connectors can be connected to the link center node body or connected to the link node root body. At least a part of the link node body and / or the first one
- Connecting element and / or the second connecting element is or are by means of a generative method, for example, 3D printing, or a
- connection node In generative production of the connection node or parts of the connection node other functions can be integrated in the connection node, such as a cable or hose guide, connection elements or holders for other components, and much more.
- connection node may be divided into two or more smaller connection nodes, preferably connected at least partially in a generative process, which are interconnected via connection bodies.
- the total weight can be further reduced, material and production time can be saved, which reduces costs.
- the multi-part connecting node central body can be formed, for example, from two half-shells, which joined together to form the connecting node central body, for example positively connected and / or welded and / or connected by screws and / or by means of a tensioning belt
- connection node central body With more than two parts, for example, three, four or more parts, the connection node central body can be assembled and joined part by part.
- the first connection body may be a sheet, a plate, a profile body, a
- the profile body may have an open cross-section, that is U-shaped or V-shaped cross-section, or a closed cross-section, for example a round, triangular, quadrangular, polygonal or polygonal cross-section.
- the profile bodies may be made by extrusion, pultrusion or pultrusion, or other suitable methods.
- Profile bodies may be formed of metal, such as steel or aluminum, or of plastic, in particular of a reinforced plastic, or comprise at least one of these materials.
- the walls can have the same or different wall thicknesses.
- connection node central body can also be metal and / or plastic or comprise at least one of these materials. If at least parts of the connecting node central body are produced by means of a generative process, this can mean that these generatively produced parts are produced separately and joined to the rest body after production, or that the parts to be generatively produced are built or grown directly on the residual body. That is, the non-generatively produced residual body serves as the basis on which the or the generatively produced parts are "printed", for example by means of the SD method. With the optimization of the connection node according to the invention and the connection body, the total mass of the system can be reduced by about 50% or more.
- the generative method may be 3D printing, laser sintering, or other additive manufacturing techniques.
- connection body Used “connector” and “first connector body” and “connector body”, wherein the “connector” is always for the “first connector and / or second connector” and the “connector body” always for the “first connector body and / or second connector body”. Statements on the “first connection body” and the “first connection body” can accordingly also for the second and all other connection body respectively
- connection body can in any way with the
- Connection node central body be added. That means he can with the
- connection body near the Compound node center body facing end face have a hole through which adhesive can be entered.
- a hole can be provided per chamber.
- the device may include a check valve to prevent backflow of the adhesive from the connection between the connector body and the connector.
- the connector body can be inserted with one end in the connecting element.
- the recess may be formed on an inner side of the connecting element and / or on an outer side of the connecting part. It is advantageous if the interface between the connecting element and the connecting body is flat, that is, the outer sides of the connecting element and the connecting body in the region of the seam lie in a plane, as this avoids the risk of injury from sharp edges. In addition, no dirt can accumulate in the edge area.
- the first connecting element may be connected via an outer peripheral edge of the first connecting element
- Connection node central body may be formed so that the terminal body is located with a front side within the connection node central body when the terminal body is connected to the connection node central body.
- the adhesive can pass through the abovementioned recesses or bores etc. at a predetermined minimum pressure of for example 2 bar to 8 bar, preferably 2.5 bar to 7 bar and more preferably from 3 bar to 6 bar into the adhesive be entered or pressed.
- the adhesive may also be applied as a thin dry layer or film to the connecting element and / or the
- Connection body are applied before connecting and then activated, for example, by supplying heat.
- the recesses or holes described above may be advantageous to transport the heat to the adhesive.
- the adhesive increases after activation
- the first connection element can be attached to one of the male
- Connection body which may be in this case, in particular a multi-chamber hollow profile, facing end face comprise a plurality of engagement elements which are adapted to engage in several or all chambers of the multi-chamber hollow profile. That is, the end face can be specially shaped in this case, to be able to engage in several or all chambers of the hollow profiles.
- each of the engaging elements at least on one of an inner side of an outer wall of the connecting node central body or the connecting body side facing a pocket, in which the adhesive can penetrate.
- the engaging elements may be formed, for example, by a reinforcing structure for the connecting element and / or the connecting node central body with recesses in the reinforcing structure into which the walls and / or chamber walls of the
- connection node connects the parts of the vehicle frame, for example in the region of a shock absorber.
- the second connecting element or a third connecting element may in this case form a strut mount or connected or joined with a strut mount.
- connection node connects several connection parts with each other, wherein several or all connection parts are a hollow chamber profile, is also the second connection element and / or the third connection element and / or each other Connecting element prepared to be connected to a multi-chamber hollow profile.
- each of the connecting elements respectively those on the connecting element
- connection node for connecting a first connection body and at least one second connection body.
- the connection node comprises a one or more parts
- Connection node central body, a first connection element for connection to the first connection body and at least one second connection element for connection to the at least one second connection body.
- Connection node center body and / or the first connection element and / or the second connection element is / are produced by means of a generative method and / or by means of a casting method.
- connection node to the first aspect also apply to the connection node of the second aspect, and vice versa.
- the multi-part Vietnamesesknotenzentralkorper may for example be formed of two half-shells, which joined together to form the kausknotenzentral momentss, for example, positively connected and / or welded and / or connected with screws and / or by means of a tensioning belt
- connection node central body With more than two parts, for example, three, four or more parts, the connection node central body can be assembled and joined part by part.
- connection node center body may be connected or connected to the first connection element and the at least one second connection element.
- the connection node central body and the at least two Fasteners can be molded together in one piece. That is, for example, that the connection node center body and the connection node center body and the connection node center body and the connection node center body
- Joining element or the at least two fasteners are molded in a single mold in preferably a single operation, or by a generative process, such as 3D printing, printed together.
- connection node center body and the first connection element and preferably also the at least one second connection element may alternatively be produced at least partially by means of the generative method.
- the parts can be manufactured separately and later connected to each other, or the parts not generated in the generative process can serve as a basis on or to which the generatively generated parts are grown or grown.
- connection node central body may have a skeleton structure with, for example, local stiffeners and / or adapted ones
- Stiffeners and the optimal strut or wall thickness can be calculated on the basis of the expected loads on the components on the computer.
- framework structures can be formed, which ensure optimum power transmission, internal or external surface structures can be replaced by lattice structures, hollow structures, with or without internal
- Reinforcing struts or honeycomb structure can replace solid local node structures. The same can apply to the fasteners, if these
- connection node central body generated generatively together with the connection node central body.
- the resulting program serves as a control program for the generative process.
- the goal is next to an optimization the structure in terms of power flows, a reduction in the weight of the generatively produced component.
- Material thickness variations are simulated without physical experiments must be performed. In this case, the values of the load case are simply varied, which then leads to different material thicknesses or different structures, such as lattice structure instead of plate structure or hollow structure instead of solid body.
- the CSG-CAD volume model is particularly suitable for this purpose and supports meaningfully the variant and change design that may be necessary, for example, in the vehicle sector for adaptation to different types or the same types with different engine types.
- the generatively produced connection node central body comprises a generatively generated and at least substantially closed outer skin in order to prevent, for example, soiling.
- Connection node central body may have regions of different thickness or thickness, wherein the respective thickness is adapted to the calculated and / or determined by experiments locally occurring force flow in the load case by the outer skin. That is, the outer skin may have a dual function of defining and at least partially reinforcing an outer surface of the connective node central body, thereby possibly saving material for the skeletal structure located within the outer skin to be more finely laid out.
- connection node (1) comprising a connection node (1) and at least one first connection body (2, 3, 4), wherein the connection node (1) comprises a one-part or multi-part connection node central body (5), a first one
- Connecting element (6, 7, 8) for joining with the connection body (2, 3, 4) and at least one second connecting element (6, 7, 8) for joining with a second connecting body (2, 3, 4), and the first connecting element (6, 7, 8) and the second connecting element (6, 7, 8) with the sublimesknotenkentralkorper (5) are connected or connectable, wherein at least a part of
- Aspect 2 System (100) according to aspect 1, wherein the first connection body (2, 3, 4) a hollow profile, a hollow profile with internal connecting struts or a
- Multi-chamber hollow section is.
- Aspect 3 System (100) according to any one of the preceding aspects, wherein the
- Connection node central body (5) with the connection body (2, 3, 4) is joined by means of an adhesive.
- Aspect 4 System (100) according to the preceding aspect, wherein the
- Connection node central body (5) or the first connection body (2, 3, 4) near at least one of the peripheral outer walls of a
- Aspect 5 System (100) according to the preceding aspect, wherein the first
- 3 to 6 bar is entered into the adhesive.
- Aspect 7 System (100) according to aspect 2, wherein the first connecting element (6, 7, 8) on a the male terminal body (2, 3, 4) facing the front side comprises a plurality of engaging elements, which are prepared, in several or all chambers of the Intervene multi-chamber hollow profile.
- Aspect 8 System (100) according to the preceding aspect, wherein each of the
- Aspect 9 System (100) according to any one of the preceding six aspects, wherein the adhesive compensates for tolerances of the parts to be joined together.
- connection node (1) connects parts of a vehicle frame together and the second connecting element (6, 7, 8) or a third connecting element (6, 7, 8) forms a strut mount or connectable with a strut mount.
- Aspect 1 1 System (100) according to aspect 2, wherein the second connecting element (6, 7, 8) and / or the third connecting element (6, 7, 8) and / or each other
- Connecting element are prepared to be connected to a multi-chamber hollow profile.
- connection node (1) for connection to a first connection body (2, 3, 4) and at least one second connection body (2, 3, 4), the
- Connection node (1) comprising:
- connection center body (5) a connection center body (5), a first connection element (6, 7, 8) for connection to the first connection body (2, 3, 4) and at least one second connection element (6, 7, 8) for connection to the at least one second connection body (2, 3, 4) , wherein the connection node center body (5) and / or the first
- Connecting element (6, 7, 8) and / or the second connecting element (6, 7, 8) is produced by means of a generative method and / or by means of a casting process / are.
- Aspect 13 connection node (1) according to aspect 12, wherein the
- Aspect 14 connection node (1) according to one of the two preceding aspects, wherein the kausknotenzentralkorper (5) and the first connecting element (6, 7, 8) and preferably also the at least one second connecting element (6, 7, 8) at least partially by means of generative process are made.
- connection node (1) according to one of the three preceding aspects, wherein at least the connection node central body (5) is made skeletal, with local stiffeners and wall thicknesses adapted to a local force flow.
- connection node (1) according to one of the four preceding aspects, wherein the connection node central body (5) and the connection elements (6, 7, 8) hollow structures with preferably stiffening structures (1 b, 6b, 7b, 8b), such as one of local force flow direction adapted strut, lattice or honeycomb structure include.
- connection node (1) according to one of the five preceding aspects, wherein the connection node (1) comprises an at least substantially closed outer skin (1a), preferably produced by the generative method, in order to prevent soiling.
- Aspect 18 connecting node (1) according to the preceding aspect, wherein the wall thickness of the outer skin (1 a) of the connecting node central body (5) has regions of different thickness, wherein the thickness is adapted to the locally occurring force flow in the load case by the outer skin (1 a).
- connection node (1) according to one of the seven preceding aspects, wherein the connection elements (6, 7, 8) at one of the connection elements (6, 7, 8) at one of the connection elements (6, 7, 8) at one of the connection elements (6, 7, 8) at one of the connection elements (6, 7, 8) at one of the connection elements (6, 7, 8) at one of the connection elements (6, 7, 8) at one of the connection elements (6, 7, 8) at one of the connection elements (6, 7, 8) at one of the
- connection body (2, 3, 4) which is for example a
- Multi-chamber hollow profile can act to intervene.
- connection node (1) according to one of the eight preceding aspects, wherein the connection node central body (5) and the connection elements (6, 7, 8) are formed in one piece together by the generative method in one piece.
- connection node (1) is the connection node (1) of the system (100) according to one of the aspects 1 to 1 1.
- FIG. 1 system with a generatively generated connection node with three
- FIG. 2 Perspective view of the system of FIG. 1
- FIG. 3 shows a sectional view of a connecting node central body with connecting elements.
- connection node 1 shows a system 100 with a generatively generated connection node 1, a first connection body 2 in the form of a multi-chamber hollow profile, a second connection body 3 in the form of a multi-chamber hollow profile and a third connection body 4 in the form of a multi-chamber hollow profile.
- the connection node 1 comprises a connection node central body 5, a first connection element 6, which can not be seen in the view shown, a second connection element 7 and a third connection element 8
- Connection node center body 5 and the connecting elements 6, 7, 8 produced together in a single operation, for example by means of a 3D printing process and therefore form a quasi monolith.
- connection node 1 does not have to be made or at least not completely generative, but may also be a casting or a cast part
- connection body 2, 3, 4, respectively, the multi-chamber hollow profiles are
- connection body 2, 3, 4 are in the illustrated embodiment of the horrtenzentralkorper 5, so that the connection body 2, 3, 4 can be pushed onto the connecting elements 6, 7, 8, to be joined in the pushed state with the connection node 1.
- the connection body 3, 4 have in the side walls openings 10, 1 1, through which, for example, an adhesive can be pressed to the connection body 2, 3, 4 with the Join node 1.
- each chamber is accessible via its own opening 10.
- the openings 10 are shown only on the side facing away from the connection node 1 side, with which the connection body 4 can be connected to a further connection node, not shown, or with a structural part or a functional part.
- Connection node facing end faces 2a, 3a, 4a of the connection body 2, 3, 4 may be formed. Also in this case, it is advantageous if a separate groove-shaped opening is formed for each of the chambers of a multi-chamber hollow profile.
- connection node center body 1 also has openings 12. These openings can serve, for example, that inside the connection node center body 1
- Connection node 1 can not build up pressure due to solar radiation or other factors.
- FIG. 2 shows the system of FIG. 1 in a view of the connecting element 6.
- the connecting element consists essentially of a frame 6a and a honeycomb stiffening structure 6b, which in the
- Connection node central body 5 continues into.
- the frame 6a has
- connection body 2 corresponds at least substantially to that of the connecting element 8, in which a frame 8a, a stiffening structure 8b and grooves 8c can likewise be seen.
- the grooves 8c are arranged in the frame 8a so that they can receive the profile inner walls 9c and 9d (see FIG. 1).
- connection elements 6, 7, 8 project from the connection node central body 5 and are connected in a stage with connection node central body 5.
- the Height or the depth of the step corresponds to the thickness of the terminal body outer wall at the respective end face 2a, 3a, 4a, which comes into contact with the connection node central body 5 when connecting the connection body 2, 3, 4 to the connection node 1. Since the thicknesses of the outer walls of a connection body 2, 3, 4 may vary, the height or depth of the steps is respectively formed accordingly, so that at the joints between the connection node 1 and the
- Terminal bodies 2, 3, 4 no edge is formed. That is, at the interface, the outer surface of the connection node 1 and each of the
- connection body 2, 3, 4 Outer surfaces of the connection body 2, 3, 4 are each in a common plane.
- FIG. 3 shows a section through the connection node 1 and the third one
- the connecting element 8 has a pocket 13, in which an adhesive can be injected or pressed from the outside, when the connecting part 4 is completely pushed onto the connecting element.
- an adhesive for example in the form of an adhesive film, can be inserted into the pocket 13 prior to connecting the connecting part 4 to the connecting node 1, and the adhesive can after the
- Adhesive or adhesive film has the advantage that the adhesive can compensate for tolerances between the two parts without plastically deforming them.
- the structure 100 may be secured with, for example, screws, blind rivets, or other suitable means to prevent accidental release of one of
- Connecting parts 2, 3, 4 are not bonded to the respective connecting element 6, 7, 8, but can be positively connected to each other without adhesive, screwed, riveted, welded, soldered or otherwise connected.
- Figure 4 shows the system 100 in a joined state in a sectional view through the connecting element 7.
- the bag 13 for the adhesive is now covered by one side of the attachment body 3, so that an adhesive, by the not in the view to be seen opening 1 1 can be entered into the pocket 13, is substantially trapped within the pocket 13 and at most in column, which arise due to tolerances between the connecting element 7 and the terminal body 3, penetrate and dry in the columns. As a result, the tolerances can advantageously be compensated.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Body Structure For Vehicles (AREA)
- Mutual Connection Of Rods And Tubes (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE202017105474.8U DE202017105474U1 (de) | 2017-09-08 | 2017-09-08 | Materialoptimierter Verbindungsknoten |
| PCT/EP2018/074318 WO2019048680A1 (de) | 2017-09-08 | 2018-09-10 | Materialoptimierter verbindungsknoten |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP3678922A1 true EP3678922A1 (de) | 2020-07-15 |
Family
ID=63579334
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP18769325.4A Withdrawn EP3678922A1 (de) | 2017-09-08 | 2018-09-10 | Materialoptimierter verbindungsknoten |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US11479306B2 (de) |
| EP (1) | EP3678922A1 (de) |
| CN (1) | CN111315642A (de) |
| DE (1) | DE202017105474U1 (de) |
| WO (1) | WO2019048680A1 (de) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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| JP6820843B2 (ja) | 2014-07-02 | 2021-01-27 | ダイバージェント テクノロジーズ, インコーポレイテッドDivergent Technologies, Inc. | 継手部材を製造するためのシステム及び方法 |
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| US11479306B2 (en) | 2022-10-25 |
| US20200406984A1 (en) | 2020-12-31 |
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| CN111315642A (zh) | 2020-06-19 |
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