DE102008059343A1 - Rivet part for use in component recess, has partial section displacing circumferential material of mechanical component, so that fluid-tight connection is produced by circumferential connection region - Google Patents

Abstract

The part (1) has an outer wall (13) comprising a partial section (20) with a cross-sectional form (Q3). The part is inserted into a component recess (2) such that a shaft (12) is pressed into the recess along a preferred direction (V2) by impingement of force into the recess. The direction (V2) and another preferred direction (V1) are oriented equally, and the section surrounds the shaft. The section displaces a circumferential material of a mechanical component (3), so that a fluid-tight connection is produced by a circumferential connection region (5).

Description

The The present invention relates to a rivet part in a component recess, comprising a rivet part with a base body and a subsequent to the body and in a first preferred direction oriented shaft with an outer wall and one of the main body repellent terminal End edge, and a component recess with a second preferred direction in a mechanical component of a deformable material, wherein a second cross-sectional shape of the component recess perpendicular to second preferred direction circumferentially essentially a first cross-sectional shape of the outer wall perpendicular to the first preferred direction of the rivet part corresponds, according to the preamble of claim 1. Furthermore, the invention relates to a rivet in a Bauteilausnehmung according to claim 16, and a method for producing a rivet part in a Component recess according to claim 18th

rivet parts In the following, connecting elements which are used for pressing (Riveting) are provided with a component and as a result of compression be mechanically connected to the component. The rivet parts may be preferred be formed so that they have connecting portions, which a compound of the pressed rivet part with a further object in particular allow a mechanical connection section. Typical ones Connection sections can Recordings or recesses, which are used for connection with objects suitable fitting area for insertion are provided in the receptacle or recess. The easiest Such shape of a receptacle or a recess is a cylindrical Bore with internal thread into which a screw with appropriately shaped external thread can be screwed. Furthermore, the rivet parts can also so be formed, that the connecting portions as a pin-like or suitably shaped extensions are formed, which in turn in recordings of the connection can be inserted with the rivet part provided objects. The simplest such embodiment is a rivet with a pin-like extension, which is an external screw thread and in a correspondingly matching internal thread of an object can be screwed. In addition to screw connections, however in the present case also bayonet connections, clip connections, magnetic connections, Spreader connections, plug connections, hook connections, clamp connections as well as all other forms of connection, which for mechanical connection two objects are suitable, conceivable.

Particularly rivet parts comprise hereinafter threaded inserts, rivet nuts, press-in nuts, press-in studs, Clifa ^® -Verbindungselemente, Anchor-fasteners, press-fit spacer bushes, press-in threaded bushes press-spacer as well as punch rivets.

rivet parts in a component recess are preferred for connecting a plurality used mechanical components, in which a direct connectivity due to mechanical limitations is not possible. In particular, to increase the Connectivity of thin, flat Components, over a small local area of these components are rivet parts preferably used. The use of rivet parts also allows a cost-effective Form of the compound, as by the subsequent insertion of rivet parts in preformed components a simple and in terms of number manufactured components numerically high volume Production of these preformed components is allowed, but without while of the manufacturing process may already be technically only makes it difficult to produce connection areas in these components provided. After the manufacturing process of the components can rather in one easy to perform Riveting Rivet parts are inserted into the components to their connectivity to ensure.

Out The prior art is a large number of different Rivet parts as well as different riveting known, which the connectivity of provided with the rivet parts components to customize concrete connection requirements. Typical requirements at rivet parts in a component recess concern about the mechanical Loading capacity, especially with regard to train, pressure and in Relative to the rivet part acting torques.

by virtue of the most However, they can also be used universally for rivet parts increasingly used in technical peripheral areas, which is why they too increasingly atypical requirements in physical as well as possibly also meet chemical requirements have to. The present invention is based on attempts by the user to rivet parts to provide in a component recess in mechanical components, which should be used as walls of a fluid reservoir, but without the tightness of the fluid reservoir under a technical reasonable measure too reduce. As the investigations have shown, however, allowed conventional Rivet connections only a very poor fluid tightness. Especially with industry-standard rivet parts produced connections of a rivet part in a Bauteilausnehmung showed in the connecting region of both significant defects, the not guarantee fluid tightness could.

Above all, showed in the carried out Applicant's research shows that slightly diffusive materials with a strong surface creeping ability could easily overcome the joint area between rivet part and component recess in conventional rivet joints of a rivet part in a riveted joint.

Out the disadvantages of previously known rivet parts in one Component recess and the technical requirements of rivet parts in the walls of a fluid reservoir can therefore be the technical Need to derive a rivet part in a component recess to propose, which avoids the disadvantages indicated. Especially It is an object of the present invention, a rivet in one Propose component recess, which is a fluid-tight connection both guaranteed. This connection of rivet and Bauteilausnehmung should also before all fluid tight against the Mass transport of slightly diffusive substances with a high surface creep behavior guarantee.

These Task is by a rivet in a Bauteilausnehmung according to claim 1 and claim 16, as well as by a method for manufacturing a rivet part in a component recess according to claim 18 solved.

Especially the task is solved by a rivet in a component recess, which The following includes: A rivet part in a base body and one adjoining the base body and in a first preferred direction oriented shaft with an outer wall and one of the main body repellent, terminal End edge, and a component recess with a second preferred direction in a mechanical component of a deformable material, wherein a second cross-sectional shape of the Bauteilausnehmung perpendicular to second preferred direction circumferentially essentially a first cross-sectional shape of the outer wall perpendicular to the first preferred direction of the rivet part corresponds, wherein the outer wall of the rivet part with respect to the first preferred direction a tapering, Having the shaft encircling portion, which extends in the direction to the terminal Tapered end edge and a third cross-sectional shape perpendicular to the first preferred direction which has the circumference greater than is the first cross-sectional shape of the component recess, wherein the Rivet in the Bauteilausnehmung is inserted so that the shaft in the component recess along the second preferred direction Force application is pressed into the Bauteilausnehmung, wherein the first preferred direction and the second preferred direction equal are oriented, and that the tapered, the shaft encircling Part section circumferentially Material of the mechanical component displaces and thereby a fluid-tight Connection via a circumferential Connection area generated.

Farther the task is solved by a rivet part in a component recess, which is obtained as follows will provide a rivet part with a base body as well one to the main body subsequent and in a first preferred direction oriented shaft with a outer wall and one of the main body repellent, terminal Finishing edge, the outer wall of the rivet part with respect to the first preferred direction a tapering, Having the shaft encircling portion, which extends in the direction to the terminal Tapered end edge and a third cross-sectional shape perpendicular to the first preferred direction which has the circumference greater than a first cross-sectional shape of the Bauteilausnehmung is; Provide a component recess with a second preferred direction in one mechanical component of a deformable material, wherein a second Cross-sectional shape of the component recess perpendicular to the second preferred direction peripherally essentially the first cross-sectional shape of the outer wall perpendicular to the first cross-sectional shape of the rivet part corresponds; Introduce the rivet part in the Bauteilausnehmung; Pressing the shaft in the component recess along the second preferred direction Kraftbeaufschlagung, wherein the first preferred direction and the second Preferred direction are the same orientation, wherein the tapered, the Shank circumferential section circumferentially material of the mechanical Component displaced and thereby a fluid-tight connection over a circumferential Connection area is generated.

Furthermore, the object is achieved by a method for producing a rivet part in a component recess, which comprises the following steps: providing a rivet part with a base body and a shaft adjoining the base body and oriented in a first preferred direction, with an outer wall and a body that deflects from the base body, terminal end edge, wherein the outer wall of the rivet part with respect to the first preferred direction has a tapered, the shaft circumferential portion which tapers towards the terminal end edge and has a third cross-sectional shape perpendicular to the first preferred direction, which is circumferentially larger than a first Cross-sectional shape of the component recess is; Providing a component recess having a second preferred direction in a mechanical component of a deformable material, wherein a second cross-sectional shape of the component recess perpendicular to the second preferred direction substantially corresponds substantially to the first cross-sectional shape of the outer wall perpendicular to the first preferred direction of the rivet part; Inserting the rivet part into the components perception; Pressing the shaft into the component recess along the second preferred direction by application of force, wherein the first preferred direction and the second preferred direction are the same orientation, and wherein the tapered, the shaft circumferential portion displaced circumferentially material of the mechanical component and thereby a fluid-tight connection over a circumferential connection region is produced.

Here and hereinafter, under a fluid-tight connection, a liquid-tight and gas-tight connection of rivet and component understood. The gas-tightness of the connection is according to conventional mechanical considerations to judge, and is defined by an upper limit of about a few hundred mbar or less. At least that will be in a modified view under fluid tightness but a liquid tightness Understood.

One essential aspect of the invention is that the shaft of the rivet part to the end edge of the shaft and with respect to a first preferred direction of the rivet part tapered shape having. When pressing the rivet in the Bauteilausnehmung repressed the part of the shaft tapering towards the end edge peripherally Material of the mechanical component from the edge region of the component recess and generates a fluid-tight by the material flow thus caused Connection between the rivet and the edge of the Bauteilausnehmung over the entire circumference of the shaft. Depending on the relative hardness of the Shank of the rivet part and the material of the component, in which the component recess is, it comes only to one Material flow in the region of the edge of the component recess or to a simultaneous material flow of the material of the shaft like also the material of the component. The material flow caused during the riveting process, takes care of microscopic deformation as well as molding processes, over the entire circumference of the shaft or the connection area generated of rivet part and component recess, so that a passage of fluid, also of highly creeping fluid, over the Connection area can be prevented. The fluid flow responsible for fluid tightness can be controlled by a number of physical parameters. As one of the most suitable parameters, the appropriate one has become to the end edge of the shaft tapered shape of the shaft exposed. Due to this special shape, the extent of material flow can by a suitable adjustment of the degree of rejuvenation of the Shank over the peripheral portion advantageously influenced and the fluid tightness of the connection area allows become. Furthermore, a suitable selection of materials may also be used the rivet part and the Bauteilausnehmung the generated material flow support.

In a first advantageous embodiment According to the present invention, the component recess is a bore or a punching recess in a plate-shaped component. Such component recesses On the one hand, they are particularly cost-effective and in large numbers On the other hand, the manufacturing processes also allow the necessary Precision, which must have the component recesses to one with respect to the Cross sectional shape of the component recess full flow of material to To ensure representation of a fluid-tight connection area.

In another embodiment the rivet part in a component recess is the mechanical component a plate-shaped Metal, in particular a plate-shaped stainless steel or aluminum, a plate-shaped Plastic or a plate-shaped fiber composite. In particular, metals are suitable for producing a rivet part according to the invention a component recess particularly well, since they at high pressures, such as such as for the production of the rivet part according to the execution in a component recess prevailing rivet pressures, have a favorable flow behavior. Ensures the flow behavior a microscopic particularly dense Anformung the edge of the component recess to the shaft of the rivet and thus allows very high fluid tightness. Also plastics or fiber composites can have a suitable elastic behavior or a suitable flow behavior to provide fluid tightness between one in a component cavity Pressed rivet and a component to ensure.

In a preferred embodiment of the rivet part according to the invention in a component recess, the base body of the rivet part has at least one recess in the connection area of the shaft, in which material transformations of the building part are accommodated. Accordingly, the material flows of the component occurring during the riveting process can be directed in such a way that the base body of the rivet part terminates flush with the side of the component facing the base body and does not give rise to fluid-tight gaps and defects. Furthermore, thereby a more uniform and mechanically strong rivet result while ensuring a fluid tightness of the connection of rivet 1 and component 3 achieved.

In a preferred embodiment of the rivet part according to the invention in a component recess, the mechanical component of a vessel containing a fluid, in particular a vessel, which is a liquid hydrocarbon or a Contains mixture with a liquid hydrocarbon. Hydrocarbons, especially low molecular weight hydrocarbons are characterized by a high surface creep on conventional materials. Low molecular weight hydrocarbons are often used in the chemical industry, petrochemical or, for example, in the pharmaceutical industry as a solvent and starting material for other products. In addition, fuels and liquid fuels as well as lubricants include a well detectable amount of low molecular weight hydrocarbons. According to the embodiment, in particular storage containers and reservoir containers for receiving lubricant may have the mechanical component, which comprises a rivet part in a component recess. In particular, oil pans having a wall thickness of 2.0 mm or 2.5 mm may comprise the rivet part according to the invention in a component recess.

In a likewise preferred embodiment of the rivet part according to the invention in a component recess, the main body of the rivet part has a receptacle, in particular a unilaterally open receptacle, on, in which a Subject can be recorded accurately. The inclusion of a The article thus allows mechanical fastening with the aid of other devices interacting with the article. In particular, the article may be part of a holding device be, which is the mechanical support of the component with a rivet allowed in a component recess. Furthermore, in particular formed the receptacle for attachment of apparatus and sensors be. Above all, the rivet part can also be in the area of a fluid containing vessel, preferably an oil pan, for fastening mechanical and / or metrological devices, like level meters, be provided.

In a continuing Embodiment of the rivet part according to the invention in a component recess, the receptacle has a suitable shape, in particular a screw thread on which a fixed mechanical Connection with the object allowed. Accordingly, readily suitable Connecting means such as screws, bayonet locks, plug-in closures or other mechanical fasteners and objects easily be absorbed and secured in the receptacle of the rivet.

In a further embodiment According to the present invention, the outer wall of the shank has a knurl. A knurl characterized by a sequence of individual teeth and depressions between adjacent teeth, which teeth in the pressing of the rivet part in the edge region of the Bauteilausnehmung cut and a rotation of the pressed rivet part in the Bauteilausnehmung prevention. By knurling is Consequently, prevents accidental exposure to the Rivet part in the Bauteilausnehmung with a torque this detached from the component or in this only slightly moved and the fluid tightness of the connection of rivet and Component is reduced or even destroyed.

In a further embodiment In the present invention, the material hardness of the rivet part is compared to the material hardness of the mechanical component larger. Of the Difference of the material hardness can alternatively only the shank of the rivet part or the tapering, and concern the shaft circumferential portion of the shaft. Due to the difference in material hardness of rivet and mechanical Component is on the one hand ensures that the material flow, which for the fluid tightness prevail is responsible, mainly relates to the material flow of the edge of the component recess. on the other hand can by the greater material hardness of the Rivet or the shaft of the rivet also guaranteed be that while the riveting process, ie the insertion and pressing the shank into the component recess, the material flow of the evenly upright mechanical component is obtained. It should also be noted that just through the form of rejuvenation of the shaft rotating portion a uniform flow of material while the entire riveting process allows can be. Nevertheless, the requirement of fluid tightness contradicts the connection area between rivet and Bauteilausnehmung not a limited material flow of the material of the rivet part during the Riveting process.

In a further preferred embodiment the present invention is the fluid-tight connection over the Connection area up to a fluid pressure above the ambient pressure of up to 0.5 bar, in particular up to 2.0 bar and preferably to fluid-tight to 3.5 bar. The ambient pressure can in this case on the rivet part facing Side of the component and on the rivet-side facing away from the component available.

In another embodiment of the rivet part according to the invention in a component recess, the rivet part is at least partially surface-treated, in particular surface-coated. On the one hand, the surface treatment can relate to the fluid-tightness of the connection region between the rivet part and the component recess, but this need not be the case. For example, the surface treatment may relate to the electrical conductivity and corrosion resistance of the rivet part, but it may also relate to an improvement in the surface properties of the shank of the rivet part, resulting in a Improve the fluid tightness of the connection area contribute. In particular, the surface treatment may relate to a hardening of the rivet part, which brings about an improved material flow of the edge material of the component recess, or a surface treatment in the form of a surface coating with substances which additionally promote the material flow at the high occurring rivet pressures during the riveting process. The surface treatment or surface coating may relate to all or even selected rivet surfaces, ie surface portions of the rivet part and / or of the component, which are in contact with the respective other component after the rivet part has been pressed in the component, in particular by an improved fluid tightness through an improved Contact both components. The surface treatment can therefore also be carried out selectively.

In an alternative modification, the surface treatment may also relate to the edge region of the component recess of the component. In particular, the surface treatment can relate to an improvement or suppression of the thermal and / or electrical conductivity of the shank of the rivet part, the reception of the rivet part or of the entire rivet part. Furthermore, the surface treatment may relate to lubrication and / or corrosion protection even under the influence of higher temperatures, for example up to 200.degree. Such a surface treatment proves to be particularly suitable even if the receptacle is formed in the main body of the rivet part as a threaded receptacle, or if the rivet part has a pin-shaped extension, which is provided for connection with other objects. Such pin-shaped extensions particularly preferably comprise an external thread for further attachment of other objects with a matching mating thread. In threaded receptacles or pin-shaped projections with external thread also proves to be a coating to improve the fluid tightness of a connection region between the thread and an object with a matching mating thread particularly advantageous, since thus the fluid tightness of an overall arrangement consisting of both sides rivet, component and object with Matching mating thread can be guaranteed. In other preferred embodiments, the surface treatment may involve all types of threadlocking and thread sealing or insulating coatings, preferably using nylon stain coatings, plastic stain coatings, foamed polyolefin stoppers, PVC and / or plastic sol coatings, film-forming dispersions, plastic adhesives, Kunstoffklebern in Micorkapseln, in particular using Tuflok ^{®, ®} Nytemp, Nyseal ^{®, ®} Nystay, Nyplast ^®, Nytorq ^{®, ®} and Nycote Precote 3M ^{® ®.}

In another embodiment the present rivet part in a component recess is the wall thickness of the shaft less than 1 mm, in particular between 0.2 mm and 0.8 mm and preferably 0.35 mm. On the one hand, this wall thickness allows a good riveting of the rivet part, that is a good ductility under high pressure, on the other hand This wall thickness sufficient stability of the shaft when inserting into a Component recess during the riveting process to a material flow, in particular a material flow of Edge of the component recess to allow.

In another embodiment of the rivet part according to the invention in a component recess, the rivet part is in the component recess to gauge. The teachability secures both the further problem-free Processing or use of the rivet part by means of or by standardized Devices, on the other hand, it is a measure of the precision of the riveting process or of the pressed rivet part in the component recess. Especially with riveting processes under high pressure, comparable to the pressures In the present riveting process, the teachability of the Rivet parts are normally no longer guaranteed. This is especially in manual riveting and pneumatic hand riveting or simple pressing method of the case, since the necessary for a teaching content even pressure distribution while the riveting process can not be provided. In the mentioned series of investigations However, it has been found by the Applicant that the teachings are specifically ensured by means of wobble riveting further can be.

In a further advantageous embodiment of the invention is the terminal terminating edge of the rivet on the rivet side facing away from the rivet-facing side from which the rivet is inserted into the Bauteilausnehmung opposite, after insertion over and is by pressing the rivet in a flush Finished with the rivet-side facing deformed. Accordingly, the fluid-tight connection region between the shank of the rivet part and the edge of the component recess can additionally be improved by pressing a shank region projecting beyond the component recess into a flush termination with the edge region of the component recess. In this case, in particular in the area of the pressed end edge of the shank, a further material flow in the form of a material impression in the component which has the component recess may occur. This flow of material can make the fluid-tightness of the connection area between rivet part and component even better. The flush completion of the pressed rivet part in the component recess on the rivet side facing away from the component additionally reduces the risk of injury during handling of the component, and improves the processing capability of the component.

In a further preferred embodiment of the rivet part according to the invention in a component recess, the terminal end edge of the rivet part one on the outside the shaft provided bevel or rounding, which is the insertion of the rivet part in the Bauteilausnehmung facilitated. Especially with automated riveting with high rivet numbers, can they provided bevels or rounding off the terminal ones end edges Of rivet parts the error rate when executing the individual riveting operations clearly Reduce.

According to the embodiment, the rivet part in a component recess can furthermore also be characterized in that the terminal end edge is pressed by a riveting tool with a substantially shaped tool part or riveting tool, in particular controlled in a path-controlled or force-controlled manner, and is deformed in such a way that the terminal end edge rests flush with the end the rivet-side facing away from the mechanical component, which is the rivet-facing side, from which the rivet part is inserted into the Bauteilausnehmung opposite, deformed. By using passformed riveting tools or tool parts, the pressure distribution can be controlled during the riveting process in such a way that an advantageous material flow takes place for producing a fluid-tight connection region. On the other hand, a fitting-shaped riveting tool or tool part ensures that the connection or reception of further devices by the rivet part is not prevented or made impossible by deformation of the rivet part itself. A path control or force control during pressing of the rivet part 1 also allows fluid tightness over the connection area 5 between rivet part 1 and component exclusion 2 within certain limits, since the pressing of the rivet part 1 controlled to a special degree.

Further embodiments The invention will become apparent from the dependent claims.

following the invention will be described by means of exemplary embodiments, the closer to the pictures explained become.

in this connection demonstrate:

1 a side sectional view through a rivet part in a component recess according to the prior art;

2a a side sectional view through a first embodiment of the rivet according to the invention in a Bauteilausnehmung before pressing the rivet;

2 B a side sectional view through a further embodiment of the rivet part according to the invention in a Bauteilausnehmung before the pressing of the rivet;

3 a side sectional view through a further embodiment of the rivet part according to the invention in a Bauteilausnehmung after pressing the rivet;

4 a side sectional view through a further embodiment of the rivet part according to the invention in a Bauteilausnehmung after the pressing of the rivet part;

5 a side sectional view through a further embodiment of the rivet part according to the invention in a Bauteilausnehmung after flush pressing the rivet part;

6 a side sectional view through a further embodiment of the rivet part according to the invention in a Bauteilausnehmung after flush pressing the rivet part;

7 a side sectional view through a further embodiment of the rivet part according to the invention in a Bauteilausnehmung after flush pressing the rivet part;

8th a side sectional view through a further embodiment of the rivet part according to the invention in a Bauteilausnehmung after flush pressing the rivet part;

9 a side sectional view through a further embodiment of the rivet part according to the invention in a Bauteilausnehmung after flush pressing the rivet part;

10 a side sectional view through a further embodiment of the rivet part according to the invention in a Bauteilausnehmung during the flush-pressing with a riveting tool;

11 a side sectional view through a further embodiment of the rivet part according to the invention in a Bauteilausnehmung; and

12 a side sectional view through a further embodiment of the inventive Rivet part for a rivet part in a component recess according to the present invention.

13 a side sectional view through a further embodiment of the rivet part according to the invention as a rivet pin in a Bauteilausnehmung after completion flush pressing;

14 a side sectional view through a further embodiment of the rivet part according to the invention in a Bauteilausnehmung even before the flush-pressing;

1 shows a side sectional view through a rivet 1 in a component recess 2 of a component 3 according to the prior art. The rivet part 1 includes next to a main body 11 , which on the rivet-facing side 40 from the component 3 survives, a shaft 12 , which positively in the Bauteilausnehmung 2 is included. For fastening or for pressing the rivet part 1 was the final border here 14 of the shaft 12 the rivet-side facing away 41 over the diameter of the component recess 2 , or via the extent of the second cross-sectional shape Q2 of the component recess 2 , widened, causing slippage of the rivet part 1 on the rivet-facing side 40 is prevented.

The present rivet shown 1 is characterized by a shaft 12 from, which has a uniform thickness expansion in the illustrated sectional view. The pressing of the rivet part 1 for attachment in the component 3 In the present case, this is restricted to the widening of the end edge 14 of the shaft 12 but without the connection area 5 between the shaft 12 of the rivet part 1 and the edge of the component recess 2 of the component 3 to concern. According to this connection type, which concerns only the end edge of the rivet part, no fluid-tightness in the region of the connection region can occur 5 between rivet part 1 and component 3 be achieved.

Unlike the in 1 shown rivet part in a component recess shows 2a a first embodiment of the rivet part according to the invention in a Bauteilausnehmung, but before the pressing of the rivet 1 in said component recess 2 , The rivet part 1 , which is located in the component recess 2 of the component 3 in the present case already used has, in addition to a main body on the rivet-facing side 40 of the component 3 a shaft 12 on, which with the main body 11 is integrally connected. The shaft 12 gets on the body 11 opposite side by the end edge 14 limited. The rivet part 1 is further characterized by a preferred direction V1, which about an axis of symmetry, in particular a rotational symmetry axis of the rivet part 1 can correspond. The preferred direction V1 here corresponds to a preferred direction V2 of the component recess 2 of the component 3 which likewise has an axis of symmetry of the component recess 2 can correspond. In the present case, both preferred directions V1 and V2 match, since the rivet part 1 already in the component recess 2 is used. It is further noted that both the rivet part 1 as well as the component recess 2 may have a rotational symmetry with appropriate shape, but this need not. Furthermore, the rivet part comprises 1 a recording 15 which are within the body as well as partially within the shaft 12 is arranged. The recording 15 can, as shown here by the dotted oblique lines, a threaded portion 15 include. This is about to be suitable, other presently not shown items 30 , In particular screws or other anchoring objects with a correspondingly formed mating thread in a mechanically load-bearing manner in the recording 15 to pick up and fix.

The shaft 12 of the rivet part 1 also points to the end edge 14 of the shaft 12 tapering section 20 on which at least partially the outer wall 13 of the shaft 12 Are defined. The tapered section 20 This ranges from a circumferential recess 17 in the main body 11 of the rivet part 1 close to the end edge 14 of the shaft 12 , Due to the tapered shape is ensured that the assumed approximately rotationally symmetrical shaft 12 of the rivet part 1 a first cross-sectional shape Q1, which substantially a second, to a second preferred direction V1 vertical cross-sectional shape Q2 of the component recess 2 of the component 3 equivalent. Assuming a substantially rotationally symmetrical rivet part 1 Corresponds to the first, perpendicular to a first preferred direction V1 cross-sectional shape Q1 consequently a diameter of the shaft 12 in the area of the tapered section 20 , This area is as shown here about halfway up the shaft length. Because of the final border 14 tapered shape of the section 20 of the shaft 12 , have the on the rivet-facing side 40 of the component 3 located portions of the tapered portion 20 That is, in the drawing on the Bauteilausnehmung 2 hegenden areas of the tapered section 20 , a third, perpendicular to the first preferred direction V1 cross-sectional shape Q3, which is greater than the two cross-sectional shapes Q1 and Q2. Here, the third cross-sectional shape corresponds to Q3 assuming a rotationally symmetrical rivet part 1 again the diameter of the tapered section 20 of the shaft 12 in the areas described above. Should, however, the rivet part 1 as well as the component recess 2 no rotation symmetry, the cross-sectional shapes Q1 to Q3 can also represent other suitable lengths or surface dimensions, in particular surfaces with fixed circumferential geometry.

2 B shows a further second embodiment of the rivet part according to the invention 1 in a component recess 2 which differ from the one in 2a rivet part shown 1 in a component recess 2 merely distinguishes that the end edge 14 of the shaft 12 a chamfer, which facilitates the insertion of the rivet part 1 in the component recess 2 of the component 3 allowed. The bevel 16 , which alternatively as a rounding or any other suitable shaping of the end edge 14 may be formed, due to the shaping reduces tilting of the rivet 1 during insertion into the component recess 2 of the component 3 and accordingly reduces the error rate when inserting the rivet part 1 in the component recess 2 ,

3 represents a further embodiment of the rivet part according to the invention in a Bauteilausnehmung after pressing the rivet 1 with the component 3 dar. To illustrate a fluid-tight connection area 5 between the shaft 12 of the rivet part 1 and the edge of the component recess 2 of the component 3 is one in terms of the circumference of the shaft 12 extensive material flow of the component 3 he follows. The pressing of the rivet part 1 with the component 3 in the component recess 2 It was done so that the described material flow in the edge region of the component recess 2 a material conversion 50 has formed, which in the body in the 11 arranged recess 17 of the rivet part 1 is included. In other words, the material of the component flows 3 in the circumferential recess 17 , The recess 17 is here as a circumferential groove in the body 11 of the rivet part 1 executed.

Consequently, it comes after the pressing of the rivet part 1 in the component recess not only between the outer wall 13 of the shaft 12 and the edge region of the component recess 2 of the component 3 for forming a connection area 5 by material flow, but also this connection area 5 still on the boundaries of the recess 17 , in which by the material deformation 50 Material of the component 3 has flowed, be extended. Because the recess 17 like the shaft 12 circumferentially on the body 11 can be arranged in the recess 17 flowed material of material deformation 50 also contribute to a circumferential fluid seal.

An improved fluid tightness of the connection area 5 can also be achieved by the fact that by pressing the rivet part 1 with the component 3 the finishing edge 14 of the shaft 12 is transformed such that the final edge 14 adjacent portions of the shaft 12 on the surface of the component 3 on the rivet-side facing away 41 circumferentially in close mechanical contact.

4 shows a side sectional view through a further embodiment of the rivet part according to the invention in a Bauteilausnehmung, extending from the in 3 illustrated embodiment only differs in that the rivet part 1 with the component 3 was pressed so that areas of the shaft 12 a superficial material impression 51 on the surface of the component 3 on the rivet-side facing away 41 caused during pressing and are in close mechanical contact with these areas. Due to the material impression 51 there is a tight contact between the outer wall 13 of the shaft 12 and the surface areas on the rivet-side facing away 41 of the component 3 in the area of material impression 51 , The tight contact is capable of fluid-tightness of the connection area 5 still support and the connection area 5 can also extend with suitable contact with this connection area with.

5 shows a further embodiment of the rivet part according to the invention in a component recess in a lateral cross-sectional view, wherein the pressing of the rivet part 1 in the component 3 such that is on the nietteilabgewandten page 41 of the component 3 between the pressed shaft 12 and the component forms a flush connection. Here are in the component 3 in the edge region of the component recess 2 from the rivet-side facing away 41 again material impressions 51 recognizable, however, which compared to those in the embodiment according to 4 deeper into the material of the component 3 extend. This present embodiment of the rivet part 1 in a component recess 2 , which by a comparison with the embodiment according to 4 stronger compression, that is compression at higher pressure, has occurred, has a stronger material flow of the material of the component 3 in the edge region of the component recess 2 on. The increased material flow in the area of material impression 51 in turn can lead to improved fluid tightness of the connection area 5 between rivet part 1 and component 3 contribute.

6 shows a side sectional view through a further embodiment of a rivet 1 in a component recess 2 , which with the in 5 rivet part shown 1 in a component recess 2 is largely identical. The decisive difference in addition to a lower shaft thickness of the shaft 12 consists in material deformation 18 in the Area between the recess 17 and the shaft 12 of the rivet part 1 , As already stated, as a result of the riveting process, both the component 3 as well as the rivet part 1 come to a material flow. The material flow of the rivet part 1 This is typically significantly lower than the material flow of the component 3 , This situation is due to the slight material deformation 18 of the rivet part 1 shown, which indicates a low material flow. Despite the material deformation shown 18 retains the shaft 12 , which with the component 3 is pressed, continues its to the end edge 14 tapered conical shape, which is responsible for the formation of the fluid-tight connection area.

7 shows a side sectional view through a further embodiment of the rivet part according to the invention 1 in a component recess 2 a component 3 , in which the material deformation of the component 3 is formed such that the edge regions of the component recess 2 against the shaft 12 to the main body 11 of the rivet part 1 in the recess 17 are deformed. A complete filling of the recess 17 of the rivet part 1 through the material transformations 50 of the component 3 was not done here. The fluid-tight connection of rivet part 1 and component 3 is thus mainly in the connection area 5 , which at the rivetteilabgewandten side 41 to the main body 11 bent or deformed edge regions of the component recess 2 is arranged. The ratios presented here show typical riveting results achieved in an industrial riveting operation.

8th shows a side sectional view through a further embodiment of the rivet part according to the invention 1 in a component recess 2 after final flushing of the rivet part 1 , The embodiment here is largely with the in 6 identical embodiment shown, but wherein the rivet part 1 not only open on one side but two-sided open. Furthermore, the main body 11 of the rivet part 1 a lateral cross channel 80 on, which may also be designed as a bore, and from the outer boundary surface of the body 11 for internal recording 15 extends. In alternative embodiments, the transverse channel 80 at a predetermined angle with the component 3 opposite end edge of the body 11 be arranged in cross section. The angle can also be largely indefinite.

9 shows a side sectional view through a further embodiment of the rivet part according to the invention 1 in a component recess 2 after final flushing of the rivet part 1 , The embodiment here is largely with the in 6 identical embodiment, wherein in the recess 17 additionally a sealing device 90 is provided. Such a sealing device 90 can be about before pressing the rivet part 1 in the recess 17 be used and will after pressing by the material deformation 50 of the component 3 at least to the side of the component 3 limited. The sealing device 90 is in the simplest case designed as an O-ring seal. In addition, the material of the sealing device 90 by its elastic properties or its flow properties, a sealing of the rivet part 1 against the component 3 continue to support. Typically, the material comprises the sealing device 90 a soft metal or a metal alloy. Furthermore, it is also conceivable that the sealing device not only in the recess 17 is arranged, but in other technically possible ways, which an additional sealing of the rivet 1 against the component 3 can support.

10 shows a side sectional view through an already pressed rivet 1 in a component recess 2 at a time towards the end of the pressing process. For pressing the body is 11 of the rivet part 1 by one to the main body 11 correspondingly adapted riveting tool 60 applied. At the same time a tool part 61 which the counter tool part to the riveting tool 60 represents on the riveting tool 60 partially opposite side into the receptacle 15 of the shaft 12 introduced and the shaft 12 of the rivet part 1 with a sufficient force applied, so that the the end edge 14 facing area of the shaft 12 to the main body 11 is deformed. In this case, on the one hand, a material flow takes place in the edge region of the component recess 2 of the component 3 providing a fluid-tight seal of rivet part 1 and component 3 in a connection area 5 defined, and on the other hand, due to the shape of the tool part 61 one on the rivet-side facing away 41 flush termination between component 3 and rivet part 1 achieved. The rivet part made by this riveting process 1 in a component recess 2 this corresponds largely to the in 5 rivet part shown 1 in a component recess 2 ,

The pressing of the rivet part 1 in the component recess 2 of the component 3 can also be carried out in two separate riveting steps. For example, in a first step, the rivet part 1 first in the component recess 2 be pressed until the main body 11 on the surface of the rivet-facing side 40 of the component 3 rests. In a second step, consequently, the shaft 12 of the rivet part 1 with the component 3 be pressed. The first experiments of the applicant have shown that for pressing or pressing in the first step advantageously 14 kN and in the second step 38 kN must be spent, if the sheet thickness 2.0 mm to 2.5 mm and a rivet part with 0.35 mm shank thickness is used. The two steps can be summarized in a mass production process with a corresponding assembly tool with hold-down on a mounting stroke.

11 shows a side sectional view through a further embodiment of the rivet part according to the invention 1 in a component recess 2 , The illustrated embodiment has, similar to the in 3 illustrated embodiment, a rivetteilabgewandten side 41 of the component 3 protruding border 14 on. Unlike the in 3 illustrated embodiment is in the body 11 of the rivet part 1 but no recess 17 arranged in which when pressing the rivet part 1 with the component 3 a material conversion 50 (not shown here) could be included. Rather, in the present case, the material flow of the component takes place 3 during the pressing of the rivet part 1 take place such that only the edge regions of the component recess 2 of the component 3 on the outside wall 13 of the shaft 12 of the rivet part 1 towards the component recess 2 shape up. The Anformung here is sufficient to a fluid-tight connection of the rivet 1 with the component recess 2 of the component 3 in the area of the connection area 5 to ensure.

Furthermore, contrary to the in 3 illustrated embodiment of the rivet 1 in the component recess 2 For example, the present embodiment does not have a rivet part open on one side only 1 on, but a rivet open on both sides 1 , The in the rivet part 1 arranged recording 15 Consequently, both from the orientation shown in the drawing from above through the body 11 an item not shown 30 As well as orientation shown in the present drawing from below through the opening of the shaft 12 ,

12 shows a further embodiment of the rivet part according to the invention 1 , wherein the component recess 2 a component 3 not shown here. The rivet part 1 shows how the in 2 to 7 rivet parts shown 1 , a unilaterally open rivet on which a body 11 with recording 15 and a shaft 12 passing through a finishing edge 14 is limited. The recording 15 In this case, a screw internal thread, in particular an M6 internal thread, comprises. The shaft 12 is characterized by the to the end edge 14 tapering section 20 of the shaft 12 out, which is the shaft 12 gives a substantially conical shape. Furthermore, on the outside wall 13 of the shaft 12 in the area of the transition from the shaft 12 to the end edge 14 shown a chamfer, which is the mechanical insertion of the presently shown rivet part in a not shown herein component recess 2 facilitated.

To the rivet part in with a component 3 compressed state against unwanted rotational movements, such as by applying the body 11 with a torque, and thus before dissolution of a fluid-tight connection between the rivet part 1 and a component recess 2 to secure, the present rivet part has a knurl 70 on, which is in one to the end edge 14 facing portion of the shaft 12 around the shaft 12 extends circumferentially. The knurl 70 , which is considered to be adjacent to each other and regularly from the main body 11 to the end edge 14 extending serrations in the outer wall 13 is shown, effected during the pressing of the rivet part 1 a material flow of the component, not shown here 3 such that material of the component 3 into individual recesses between adjacent teeth and consequently the rivet part 1 mechanically secures against undesired twisting. The knurl 70 can according to DIN regulations 82 be formed.

In an alternative embodiment, a knurl 70 also on a plane surface 71 be arranged, which during pressing of the rivet part 1 with the component 3 Material in the edge area of the component recess 2 appropriately deformed and a rotation of the rivet 1 allows. In a further alternative embodiment, a knurl 70 both on the plane surface 71 as well as on the outside wall 13 of the shaft 12 be arranged.

13 shows a side sectional view through a further embodiment of the rivet part according to the invention 1 in the form of a rivet pin in a component recess after flush pressing. Contrary to the previous embodiments of the rivet part 1 which by a recording 15 The present rivet part is characterized 1 a pin-shaped extension 100 on which an external screw thread 101 Has. A recording 15 (Not referred to in the present case) is indicated here only rudimentary, but also according to the implementation of the rivet part 1 be fully embraced. All other features are largely consistent with those of the embodiment 6 identical.

14 shows a side sectional view through a further embodiment of the rivet part according to the invention 1 in a component recess 2 even before pressing. The embodiment shown is largely identical to the embodiment shown in FIG 2a is shown. The only difference is that of the component 3 facing portion of the body 11 a circumferential groove 19 which is in the basic body 11 around the shaft 12 runs, and in which a deformable sealant 91 is included. Preferred dimensions are the deformable sealant 91 designed as O-ring made of plastic. When pressing the rivet part 1 in the component 3 becomes the sealant 91 deformed such that it on a portion of the surface of the rivet-facing side 40 of the component 3 sealingly and circumferentially around the pressed shaft 12 defines a sealing area. The sealing effect achieved with the sealing area can be the fluid seal, which after pressing on the connection area not shown here 5 between rivet part 1 and component 3 is trained, still support.

At It should be noted that all of the above Parts for seen alone and in any combination, especially those in The details shown in the drawings claimed as essential to the invention become. amendments this is familiar to the person skilled in the art.

1

rivet

2

Bauteilausnehmung

3

component

5

connecting area

11

body

12

shaft

13

outer wall

14

end edge

15

admission

16

Chamfer / rounding

17

recess

18

material deformation

19

circumferential groove

20

yourself tapered part Of

30

object

40

nietteilzugewandte page

41

nietteilabgewandte page

50

material deformation

51

Materialeinprägung

60

riveting tool

61

tool part

70

knurled

71

plane surface

80

Querkanal

90

sealing device

91

sealant

100

extension

101

External screw thread

V1

first preferred direction

V2

second preferred direction

Q1

first Cross-sectional shape

Q2

second Cross-sectional shape

Q3

third Cross-sectional shape

Claims (18)

Rivet part ( 1 ) in a component recess ( 2 ), comprising: - a rivet part ( 1 ) with a basic body ( 11 ) as well as one to the main body ( 11 ) adjoining and in a first preferred direction (V1) oriented shaft ( 12 ) with an outer wall ( 13 ) and one of the main body ( 11 ) repellent terminal end edge ( 14 ), and - a Bauteilausnehmung ( 2 ) with a second preferred direction (V2) in a mechanical component ( 3 ) of a deformable material, wherein a second cross-sectional shape (Q2) of the Bauteilausnehmung ( 2 ) perpendicular to the second preferred direction (V2) circumferentially substantially a first cross-sectional shape (Q1) of the outer wall ( 13 ) perpendicular to the first preferred direction (V1) of the rivet part ( 1 ), characterized in that the outer wall ( 13 ) of the rivet part ( 1 ) with respect to the first preferred direction (VI) a tapered, the shaft ( 12 ) rotating section ( 20 ), which extends in the direction of the terminal end edge ( 14 ) and a third cross-sectional shape (Q3) perpendicular to the first preferred direction (V1) which is circumferentially larger than the first cross-sectional shape (Q1) of the Bauteilausnehmung ( 2 ), wherein the rivet part ( 1 ) in the component recess ( 2 ) is inserted so that the shaft ( 12 ) in the component recess ( 2 ) along the second preferred direction (V2) by applying force into the Bauteilausnehmung ( 2 ) is pressed, wherein the first preferred direction (V1) and the second preferred direction (V2) are the same orientation, and that the tapered, the shaft ( 12 ) circumferential section ( 20 ) circumferential material of the mechanical component ( 3 ) and thereby a fluid-tight connection over a peripheral connection area ( 5 ) generated. Rivet part ( 1 ) in a component recess ( 2 ) according to claim 1, characterized in that the Bauteilausnehmung ( 2 ) a bore or a punching recess in a plate-shaped component ( 3 ). Rivet part ( 1 ) in a component recess ( 2 ) according to one of the preceding claims, characterized in that the mechanical component ( 3 ) is a plate-shaped metal, in particular a plate-shaped stainless steel or aluminum, a plate-shaped plastic or a plate-shaped fiber composite material. Rivet part ( 1 ) in a component recess ( 2 ) according to one of the preceding claims, characterized in that the mechanical component ( 3 ) of a vessel containing a fluid, in particular a vessel, which is a liquid hydrocarbon or a mixture with a liquid hydrocarbon contains is included. Rivet part ( 1 ) in a component recess ( 2 ) according to one of the preceding claims, characterized in that the basic body ( 11 ) of the rivet part ( 1 ) in the connection area of the shaft ( 12 ) at least one recess ( 17 ), in which Materialumformungen ( 50 ) of the component ( 3 ) are included. Rivet part ( 1 ) in a component recess ( 2 ) according to one of the preceding claims, characterized in that the basic body ( 11 ) of the rivet part ( 1 ) a recording ( 15 ), in particular a one-sided open recording ( 15 ), in which an article ( 30 ) can be recorded accurately. Rivet part ( 1 ) in a component recess ( 2 ) according to claim 6, characterized in that the receptacle ( 15 ) has a suitable shape, in particular a screw thread, which has a fixed mechanical connection with the object ( 30 ) allowed. Rivet part ( 1 ) in a component recess ( 2 ) according to one of the preceding claims, characterized in that the outer wall ( 13 ) of the shaft ( 12 ) has a knurl. Rivet part ( 1 ) in a component recess ( 2 ) according to one of the preceding claims, characterized in that the material hardness of the rivet part ( 1 ) compared to the material hardness of the mechanical component ( 3 ) is larger. Rivet part ( 1 ) in a component recess ( 2 ) according to one of the preceding claims, characterized in that the fluid-tight connection via the connecting region ( 5 ) is fluid-tight up to a fluid pressure above the ambient pressure of up to 0.5 bar, in particular up to 2.0 bar and preferably up to 3.5 bar. Rivet part ( 1 ) in a component recess ( 2 ) according to one of the preceding claims, characterized in that the rivet part ( 1 ) is at least partially surface-treated, in particular surface-coated. Rivet part ( 1 ) in a component recess ( 2 ) according to one of the preceding claims, characterized in that the wall thickness of the shank ( 14 ) is less than 1 mm, in particular between 0.2 mm and 0.8 mm and preferably 0.35 mm. Rivet part ( 1 ) in a component recess ( 2 ) according to one of the preceding claims, characterized in that the rivet part ( 1 ) in the component recess ( 2 ) is instructive. Rivet part ( 1 ) in a component recess ( 2 ) according to one of the preceding claims, characterized in that the terminal terminating edge ( 14 ) of the rivet part ( 1 ) on the rivet-side ( 41 ), which of the rivet-facing side ( 40 ), from which the rivet part ( 1 ) in the component recess ( 2 ), opposite, after the insertion survives and by the pressing of the rivet part ( 1 ) to a flush conclusion with the rivet-side ( 41 ) is deformed. Rivet part ( 1 ) in a component recess ( 2 ) according to one of the preceding claims, characterized in that the terminal terminating edge ( 14 ) of the rivet part ( 1 ) one on the outside of the shaft ( 12 ) bevel ( 16 ) or rounding off ( 16 ), which the insertion of the rivet part ( 1 ) in the component recess ( 2 ) facilitated. Rivet part ( 1 ) in a component recess ( 2 ), obtained by: - providing a rivet part ( 1 ) with a basic body ( 11 ) and one to the main body ( 11 ) adjoining and in a first preferred direction (V1) oriented shaft ( 12 ) with an outer wall ( 13 ) and one of the main body ( 11 ) repellent terminal end edge ( 14 ), the outer wall ( 13 ) of the rivet part ( 1 ) with respect to the first preferred direction (V1) a tapered, the shaft ( 12 ) rotating section ( 20 ), which extends in the direction of the terminal end edge ( 14 ) and a third cross-sectional shape (Q3) perpendicular to the first preferred direction (V1) which is circumferentially larger than a first cross-sectional shape (Q1) of the Bauteilausnehmung ( 2 ); Providing a component recess ( 2 ) with a second preferred direction (V2) in a mechanical component ( 3 ) of a deformable material, wherein a second cross-sectional shape (Q2) of the Bauteilausnehmung ( 2 ) perpendicular to the second preferred direction (V2) circumferentially substantially the first cross-sectional shape (Q1) of the outer wall ( 13 ) perpendicular to the first preferred direction (V1) of the rivet part ( 1 ) corresponds; - insertion of the rivet part ( 1 ) in the component recess ( 2 ); - Pressing the shaft ( 12 ) in the component recess ( 2 ) along the second preferred direction (V2) by application of force, wherein the first preferred direction (V1) and the second preferred direction (V2) are the same orientation, and wherein the tapered, the shaft ( 12 ) circumferential section ( 20 ) circumferential material of the mechanical component ( 3 ) and thereby a fluid-tight connection over a peripheral connection area ( 5 ) is produced. Rivet part ( 1 ) in a component recess ( 2 ) according to claim 16, characterized in that the terminal end edge ( 14 ) by a riveting tool ( 60 ) with a substantially molded part ( 61 ) or riveting tool ( 60 ) is pressed, in particular weggesteuert or force-controlled compression, and is deformed such that the terminal end edge ( 14 ) for flush completion on the side facing away from the rivet ( 41 ) of the mechanical component ( 3 ), which of the rivet-facing side ( 40 ), from which the rivet part ( 1 ) in the component recess ( 2 ), is opposite, is deformed. Method for producing a rivet part ( 1 ) in a component recess ( 2 ) comprising the following steps: - providing a rivet part ( 1 ) with a basic body ( 11 ) as well as one to the main body ( 11 ) adjoining and in a first preferred direction (V1) oriented shaft ( 12 ) with an outer wall ( 13 ). and one of the main body ( 11 ) repellent terminal end edge ( 14 ), the outer wall ( 13 ) of the rivet part ( 1 ) with respect to the first preferred direction (V1) a tapered, the shaft ( 12 ) rotating section ( 20 ), which extends in the direction of the terminal end edge ( 14 ) and a third cross-sectional shape (Q3) perpendicular to the first preferred direction (V1) which is circumferentially larger than a first cross-sectional shape (Q1) of the Bauteilausnehmung ( 2 ); Providing a component recess ( 2 ) with a second preferred direction (V2) in a mechanical component ( 3 ) of a deformable material, wherein a second cross-sectional shape (Q2) of the Bauteilausnehmung ( 2 ) perpendicular to the second preferred direction (V2) circumferentially substantially the first cross-sectional shape (Q1) of the outer wall ( 13 ) perpendicular to the first preferred direction (V1) of the rivet part ( 1 ) corresponds; - insertion of the rivet part ( 1 ) in the component recess ( 2 ); - Pressing the shaft ( 12 ) in the component recess ( 2 ) along the second preferred direction (V2) by application of force, wherein the first preferred direction (V1) and the second preferred direction (V2) are the same orientation, and wherein the tapered, the shaft ( 12 ) circumferential section ( 20 ) circumferential material of the mechanical component ( 3 ) and thereby a fluid-tight connection over a peripheral connection area ( 5 ) is produced.