Functional member, composite member having a functional member, and method for fixing a functional member on a holding member

Abstract

The invention relates to a functional component (10) which is designed to be fixed on a holding component (12) by pressing a connecting element (22) into a recess (14) of the holding component (12). The connecting element (22) protrudes in an undeformed state in a pressing direction from a base body (24) of the functional component (10) and is designed to be deformed by applying a force (28) to the base body (24) such that the connecting element (22) expands in a free end region (32) and the end region (32) is inserted into a wall (16) of the recess (14). The base body (24) has an abutment surface (36) which surrounds the connecting element (22) and which, in a coupled state of the functional component (10), abuts on a seating surface (38) of the holding component (12). A functional module (48) of the functional component (10) is provided by a subregion of the base body (24) which faces away from the abutment surface (36). Furthermore, the invention relates to a composite component (20) and a method for fixing a functional component (10).

Description

TECHNICAL FIELD

[0001] The invention relates to a functional component which is designed to be fixed on a holding component by pressing a connecting element of the functional component into a recess provided in the holding component. The connecting element protrudes in an undeformed state in a pressing direction from a base body of the functional component and is designed to be brought into a deformed state by applying a force acting in the pressing direction to the base body. In the deformed state, the connecting element expands / opens in a free end region and the free end region of the connecting element is inserted / introduced into a wall portion of the holding component which delimits the recess of the holding component in the circumferential direction. Furthermore, the invention relates to a composite component having at least one such functional component and holding component and to a method for fixing a functional component on a holding component. BACKGROUND

[0002] DE 10 2004 042 478 A1 describes a method for fixing a functional component, for example a press-in bolt, on another component in a torsion-proof manner. Here, the other component has a receiving opening which is designed as a blind hole. The cylindrical press-in bolt has a deformed region on the end of its end side, which deforms region is formed by an annular foot which has a central and inwardly directed elevation. In the installation process, the press-in bolt is pressed into the blind hole. Here, the foot deforms outwardly and intrudes into the side wall of the blind hole.

[0003] Here, it is disadvantageous that the final position of the press-in bolt cannot be well reproducibly preset. Thereby, the pressing-in process can also only be repeated with unsatisfactory precision.

[0004] Furthermore, DE 10 2017 110 806 A1 describes a form-locked connection of a transmission component in the form of a cast carrier and a cover to one another. Here, the form-locked connection is made by means of a punch which plastically extrudes the material of a rivet head of the cover into an undercut formed in the cast carrier. SUMMARY

[0005] It is an object of the invention to provide a functional component of the type mentioned at the outset which can be particularly well reproducibly implemented in an exact fixing on a holding component, and to provide a corresponding composite component and a corresponding method.

[0006] This object is achieved by the functional component, the composite component and the method having the features described below. Advantageous design features and suitable refinements of the invention are explained in the following description.

[0007] The functional component according to the application is designed to be secured on the holding component, more precisely by pressing a connecting element of the functional component into a recess provided in the holding component. The connecting element projects in an undeformed state in a pressing direction from a base body of the functional component. Here, the pressing direction is the direction in which the connecting element is pressed into the recess of the holding component in order to secure the functional component on the holding component. The connecting element is designed to be brought into a deformed state by exerting a force acting in the pressing direction onto the base body. In the deformed state of the connecting element, the connecting element expands in a free end region. Furthermore, the free end region of the connecting element is inserted in the deformed state of the connecting element into a wall of the holding component which delimits the recess of the holding component in the peripheral direction. The base body of the functional component has an abutment face which surrounds the connecting element. The abutment face abuts in a coupled state of the functional component on a seating face of the holding component, in which coupled state the functional component is secured on the holding component by pressing the connecting element into the recess. A functional module of the functional component is provided by a subregion of the base body which faces away from the abutment face.

[0008] The provision of the abutment face surrounding the connecting element on the base body in the functional component ensures that a defined final position or final attitude of the functional component is predetermined when the connecting element is pressed into the recess of the holding component. That is, the functional component reaches this final position or final attitude when the abutment face of the functional component abuts on the seating face of the holding component. Thus, an exact securing on the holding component can be realized particularly reproducibly in the functional component.

[0009] Furthermore, the provision of the functional module of the functional component by the subregion of the base body which faces away from the abutment face ensures that the functional component can realize the function which is envisaged for it. This function can be, in particular, the securing of a further component on the functional component. Thus, this functional component can be used in a particularly advantageous manner in motor vehicles. This is because in automobile construction it is often the task to arrange further components on functional components or to connect further components to functional components in a simple manner, wherein the functional components are in turn secured on holding components.

[0010] Due to the provision of the abutment face, an extremely exact reproducible seating of the functional component or of the pressing element relative to the holding component and in particular to the seating face of the holding component can be achieved when the functional component is secured on the holding component, which is carried out in this case by pressing the connecting element into the recess. This applies, on the one hand, in terms of the orientation of the functional module relative to the seating face of the holding component. In particular, it can be ensured very easily that a central axis of the functional module, which preferably coincides with the pressing direction, is oriented essentially perpendicularly relative to the seating face of the holding component.

[0011] Furthermore, by means of the abutment face of the functional component, a terminal stop for the press-in process is provided, so that a predetermined longitudinal extension or height of the functional module, which is based on the seating face of the holding component, can also be very well reproducibly and precisely maintained or set.

[0012] Furthermore, by predefining the distance of the free end region, which expands or unfolds / forks when the connecting element is pressed into the recess, from the abutment face, it can be well predetermined at which point of the wall, which delimits the holding component recess in the circumferential direction, the force is introduced into the holding component. The expansion force of the free end region of the connecting element, which is designed in the form of a splayed foot, can thus be well targeted in its introduction into the holding component in the region of the recess of the holding component, so that it is ensured that the force is well absorbed by the holding component.

[0013] This ensures that the functional component is very securely anchored on the holding component by means of the connecting element, which unfolds or expands in the free end region. Furthermore, it can be very reliably avoided that the holding component is damaged or even fails as a result of the connection of the functional component to the holding component by means of the press-in.

[0014] Furthermore, by force-controlled pressing of the connecting element into the recess, the fixing of the functional component on the holding component can be very simply achieved. Since, when the connecting element is pressed into the recess, the expandable or unfoldable free end region of the connecting element first comes to abut against the bottom or bottom region of the recess. Then, the free end region of the connecting element gets caught in the wall of the holding component, which delimits the holding component recess in the circumferential direction.

[0015] The intrusion of the free end region into the wall of the holding component ensures a particularly tight and secure connection of the functional component to the holding component. And by the sudden increase in force to be applied to the base body upon press-in, the abutment of the abutment face of the base body on the seating face of the holding component can be perceived upon press-in. Thus, by means of this force increase, it can be well determined when the press-in process is complete or finished.

[0016] Depending on the design of the functional module, different functions can be provided by means of the functional component. However, it is not necessary that the connection to the functional component is already completed when the holding component is manufactured, but the holding component can for example have a plurality of recesses and then only the recesses desired in the specific application case are equipped with the respective functional component.

[0017] This is advantageous, in particular, in the case of a plurality of variants based on the same holding component, wherein these variants can differ, in particular, in the placement site of the functional component and / or in the type of the functional component. Thus, a particular great flexibility is given in the provision of composite components, in which the holding component is equipped with at least one functional component.

[0018] Preferably, the functional module is designed for establishing a welded connection of the functional component to a further component. Thus, the functional module can be designed as a subregion of the base body in which the base body has the outer shape of a plate or another profile suitable for welding, in particular spot welding, etc. In particular, an abutment face can be formed on a first side of the plate, on which first side the connecting element projects from the base body. Via a second side of the plate, which is opposite the abutment face, a welding face can be provided, on which the further component can be connected to the functional component by welding, in particular by spot welding. This design of the functional component is particularly advantageous if the holding component is formed from a material that cannot be welded, while the material of the functional component is suitable for establishing a welded connection.

[0019] Additionally or alternatively, the functional module can comprise a pin-shaped protrusion aligned with the connecting element. Here, the abutment face is formed on the side of the flange-like web of the functional component that faces away from the pin-shaped protrusion. The web surrounds the pin-shaped protrusion. In such a design, the force for the press-in can be applied very well and very uniformly to the web, more precisely to the side of the web that faces away from or is opposite the abutment face, when press-in takes place. This is advantageous in terms of very uniform force introduction and, in turn, uniform press-in of the connecting element into the recess of the holding component. Furthermore, the pin-shaped protrusion of the functional module can be very advantageously used, in particular, for securing at least one further component on the functional component.

[0020] The pin-shaped protrusion can have an end region that widens relative to the shaft region of the pin-shaped protrusion. Thus, the functional module can be designed overall, for example, in the form of a ball stud or in the form of such a region of the functional component that has a profile that can be locked from behind. Such a functional module is well suited for securing a further component on the functional component.

[0021] Additionally or alternatively, the pin-shaped protrusion can have an external thread. This is also advantageous in terms of the securing of the further component on the functional component via the functional module.

[0022] The external thread can be designed, in particular, as a metric thread or a metric ISO thread, so that a nut or a similar element provided with a corresponding metric thread can be very simply and process-securely placed on the functional module.

[0023] Alternatively, the external thread can be designed as a coarse thread, wherein, in particular, the distance of the thread pitch from one another can be set to be greater than when the external thread is designed as a metric ISO thread. Such a coarse thread is also very suitable for placing a further component on a functional component via the functional module.

[0024] Preferably, the web has at least one protrusion which projects from the abutment face in the direction of insertion. This protrusion, which is designed for example in the form of a stud, intrudes into the holding member during insertion until the abutment face of the base body abuts against the seating face of the holding member. This ensures particularly good anchoring of the functional member on the holding member.

[0025] In particular, if the functional module has a pin-shaped protrusion which is provided with an external thread, the at least one protrusion achieves a further advantageous purpose. Because, for example, when a further component in the form of a nut is screwed together with the pin-shaped protrusion which is provided with an external thread, the at least one protrusion which intrudes into the holding member ensures anti-rotation. As a result of the at least one protrusion, the torsional forces which occur in this screwing can be particularly well absorbed or introduced into the holding member.

[0026] Preferably, the end side of the free end region is designed to be inclined with respect to the abutment face. Here, the inner edge of the end side is closer to the abutment face than the outer edge of the end side. By virtue of this inclined configuration of the free end region on its end side, it can be ensured in a particularly effective manner that, when the connecting element is inserted into the recess, expansion or unfolding of the connecting element in the free end region is caused. This in turn ensures in a process-safe manner that the free end region cuts into or intrudes into a wall of the holding member which delimits the holding member recess in the circumferential direction.

[0027] Preferably, the connecting element has, in the undeformed state, in the free end region a recess which is delimited in the circumferential direction by a wall of the connecting element. By virtue of this design of the connecting element, it can be ensured very reliably that the free end region expands or unfolds when the connecting element is inserted into the recess.

[0028] It can be provided that, by virtue of the transition of the connecting element into the deformed state, a bottom region of the recess can be brought into abutment with a bottom region or bottom of the recess. This facilitates particularly close connection of the functional member to the holding member.

[0029] The composite component according to the application has a holding member and at least one functional member according to the application. The at least one functional member is fixed on the holding member by virtue of the insertion of the connecting element into at least one recess provided in the holding member.

[0030] Preferably, the holding member is formed at least in the region of the recess from a material which is softer than the at least one functional member. Thus, it can be ensured reliably that the free end region of the connecting element which unfolds on insertion enters or intrudes into a wall of the holding member which delimits the recess formed in the holding member in the circumferential direction. Thus, a very secure fixing of the at least one functional member on the holding member can be achieved.

[0031] In particular, the holding member can be designed as a die-cast component. This is advantageous in terms of the precise manufacture of the holding member. Furthermore, by designing the holding member as a die-cast component it can be well ensured that the holding member is formed at least in the region of the recess from a softer material than the at least one functional component. This applies in particular when the die-cast component is formed from an aluminum alloy. Furthermore, the functional component can in particular be formed from steel.

[0032] The recess can be machined in the holding member in different ways, for example by means of chip removal machining, in particular by means of drilling.

[0033] If the recess is already formed together with the holding member when the holding member is manufactured as a die-cast component, the at least one recess can be provided in the holding member particularly cost-effectively. In particular, if the holding member is designed as a die-cast component, it proves to be advantageous for the at least one recess to have the shape of a truncated cone which widens counter to the direction of pressing in. In this way, when the holding member is manufactured as a die-cast component, the holding member can be well de-molded or removed from the mold counter to the direction of pressing in.

[0034] Preferably, in the deformed state of the connecting element, a gap is formed between the outer side of the connecting element and the wall of the holding member which circumferentially delimits the recess of the holding member. By means of this gap, which is in particular designed in the form of an air pocket, stresses which can arise as a result of different thermal expansions of the functional component and the holding member can be well compensated. This is advantageous, for example, if the functional component is formed from steel and the holding member is designed as a die-cast component formed from an aluminum alloy.

[0035] In the method according to the application for fixing a functional component, in particular for a motor vehicle, on a holding member by pressing a connecting element of the functional component into a recess provided in the holding member, in the undeformed state of the connecting element, the connecting element protrudes in the direction of pressing in from a base body of the functional component. The connecting element is brought into the deformed state by exerting a force on the base body which acts in the direction of pressing in. In the deformed state of the connecting element, the connecting element expands in the region of the free end. In this expansion or unfolding of the region of the free end, the region of the free end of the connecting element is introduced into a wall of the holding member which circumferentially delimits the recess of the holding member. The base body of the functional component has an abutment face which surrounds the connecting element and which, in order to bring about a coupled state of the functional component, abuts against a seating face of the holding member. In the coupled state of the functional component, the functional component is fixed on the holding member by pressing the connecting element into the recess. A functional module of the functional component is provided by a subregion of the base body which faces away from the abutment face.

[0036] By means of this method, a precise fixing of the functional component on the holding member can be particularly well reproducibly achieved.

[0037] Preferably, by transforming the connecting element into the deformed state, the length of the connecting element in the press-in direction is reduced to a length which corresponds to the depth of the recess. Thus, when the connecting element has the undeformed state, the length of the connecting element in the press-in direction is preferably greater than the depth of the recess. In this way, a very loadable connection of the functional component to the holding component can be achieved in such a way that the free end region of the connecting element intrudes into a wall portion of the holding component which delimits the recess of the holding component in the circumferential direction.

[0038] The advantages and preferred embodiments described for the functional component according to the application and for the composite component according to the application also apply to the method according to the application and vice versa.

[0039] The application therefore also comprises, inter alia, a refinement of the method according to the application, which has the features already described in connection with the refinement of the functional component according to the application and / or the composite component according to the application. For this reason, the respective refinements of the method according to the application are not described again here.

[0040] The application also comprises combinations of the features of the described embodiments. The application therefore also comprises the realizations which each have a combination of the features of a plurality of embodiments from the described embodiments, as long as these embodiments are not described as mutually exclusive. BRIEF DESCRIPTION OF DRAWINGS

[0041] Embodiments of the application are described below. To this end:

[0042] Figure 1 A first step in the process of fixing the functional component on the holding component is shown, wherein the holding component is designed as a die-cast component formed from an aluminum alloy;

[0043] Figure 2 A further step of the fixing of the functional component on the holding component is shown, wherein the connecting element of the functional component rests against the bottom of the recess formed in the holding component;

[0044] Figure 3 A further step of the connection of the functional component to the holding component is shown, wherein the functional component has reached its final pose or final position and the end region of the connecting element intrudes into a wall portion which delimits the recess formed in the holding component in the circumferential direction;

[0045] Figure 4 An exemplary design variant of the functional component as a spot-welding foot is shown;

[0046] Figure 5 A further exemplary design variant of the functional component as a ball stud is shown;

[0047] Figure 6Another exemplary design of a functional component as a coarse thread pin is shown;

[0048] Figure 7 Another exemplary design of a functional component as a thread pin with metric thread is shown. DETAILED DESCRIPTION

[0049] The embodiments explained below are preferred embodiments of the application. In the embodiments, the described components of the embodiments each represent individual features of the application which are considered independent of one another, and which each improve the application independently of one another. The disclosure should therefore also include combinations different from the shown combinations of the features of the embodiments. Furthermore, the described embodiments can also be supplemented by further features of the application which have already been described.

[0050] In the drawings, identical reference signs denote identical elements with the same function.

[0051] Figure 1 A functional component 10 for a motor vehicle is shown very schematically, which should be connected with a holding component 12 or should be fixed on the holding component 12. The holding component 12 is designed in this case as a die-cast component from an aluminum alloy. When the holding component 12 is manufactured by die-casting of an aluminum alloy, i.e. by aluminum die-casting, a recess 14 designed as a blind hole is manufactured in the holding component 12 at the same time. In this respect, the recess 14 is formed by a wall portion 16 which is formed in the holding component 12 in the course of the die-casting process. Figure 1 It can be seen that the wall portion 16 delimiting the recess 14 in the circumferential direction is designed as inclined. The wall portion 16 therefore has a demolding inclination which facilitates the demolding of the holding component 12 from the (not shown) die-casting mold.

[0052] Alternatively, the recess 14 can be designed as a blind hole which is manufactured in particular by drilling or similar machining in the holding component 12. In particular in this case, the wall portion 16 of the blind hole can be designed straight or parallel to the press-in direction 18 which is shown in Figure 1 by an arrow. The press-in direction 18 also coincides with the longitudinal axis of the functional component 10.

[0053] In order to manufacture the composite component 20 shown in Figure 3 , the connecting element 22 of the functional component 10 is pressed into the recess 14 which is formed in the holding component 12. The connecting element 22 projects in the press-in direction 18 from a base body 24 of the functional component 10. The connecting element 22 designed as a protrusion is shown in Figure 1 in the state not yet deformed.

[0054] In order to fix the functional component 10 on the holding component 12 by pressing the connecting element 22 into the recess 14, a force is exerted onto the flange-like tab 26 of the functional component 10. This force is shown in Figure 1 by the arrow 28. In particular, the force can be exerted onto the tab 26 by means of a presser 30, which is shown schematically in Figure 1 and which can be designed in particular as a cylinder.

[0055] By exerting the force acting in the pressing direction 18 onto the base body 24 and, in the present case, exclusively onto the tab 26, it is first ensured that the free end region 32 of the connecting element 22 lies against the bottom region or the bottom 34 of the recess 14 (cf. Figure 2 ). The connecting element 22 is preferably pressed into the hole or the recess 14 in a force-controlled manner.

[0056] Upon pressing the connecting element 22 into the recess 14, the free end region 32 of the connecting element 22, which is designed in the form of a splayed foot, first rests on the bottom 34 of the recess 14. However, in the state shown in Figure 2 , the lying surface 36 of the base body 24, which surrounds the connecting element 22, is still spaced apart from the resting surface 38 of the holding component 12. Subsequently, the pressing process is continued. This happens until the flange-like tab 26 or the shoulder of the functional component 10 comes to lie against the holding component 12. Thus, the lying surface 36 of the functional component 10, which is formed in the present case on the tab 26 or the shoulder, also lies, in particular face-like, on the resting surface 38 of the holding component 12. The state of forming or manufacturing the composite component 20 is shown in Figure 3 .

[0057] Pressing the connecting element 22 into the recess 14 leads to a transition of the free end region 32 of the connecting element 22 into the state shown in Figure 3 , in which the free end region 32 is deformed. This deformed state of the connecting element 22 is shown schematically in Figure 3 . Thus, the free end region 32 of the connecting element 22, which is designed in the form of a splayed foot, is clamped in the recess 14 or the hole of the casting or the holding component 12. In other words, the free end region 32 penetrates into the wall portion 16, which delimits the recess 14 of the holding component 12 in the peripheral direction. The penetration or the insertion of the free end region 32 into the wall portion 16, which delimits the recess 14 of the holding component 12 in the peripheral direction, is shown schematically in Figure 3 .

[0058] By means of the tab 26 or the shoulder (on which the abutment surface 36 is formed) which, in the present case, surrounds the connecting element 22, a terminal stop for the pressing-in process or the pressing-in procedure is provided. Thereby, an extremely precisely repeatable procedure is produced when connecting the functional component 10 to the holding component 12 by pressing the connecting element 22 into the recess 14. After the shoulder or the tab 26 has come to rest on the surface or the resting surface 38 of the holding component 12, a clearly perceptible increase in force occurs. This indicates that the pressing-in procedure has ended.

[0059] Furthermore, it can be achieved that the pressing-in element or the functional component 10 comes to rest with respect to the surface of the holding component 12 or the cast component, more precisely not only in terms of the height 40 of the functional component 10 on the resting surface 38 but also in terms of the angle. Since, on the one hand, it can be ensured by means of the shoulder or the tab 26 that the functional component 10 is oriented straight with respect to the holding component 12, i.e. such that the pressing-in direction 18 and in turn the longitudinal axis of the functional component 10 is perpendicular to the resting surface 38 of the holding component 12. To this end, the abutment surface 36 is also formed perpendicular to the pressing-in direction 18 in the present case. Furthermore, the height 40 of the functional component 10 with respect to the resting surface 38 is also very precisely predetermined in this pressing-in procedure, which in the present case corresponds to the distance of the upper end of the base body 24 from the abutment surface 36.

[0060] Furthermore, in the region of the bottom 34 of the hole or the recess 14, the expansion force of the free end region 32 or the splayed foot is introduced into the cast component or the holding component 12. In this way, a very good force absorption can be achieved by means of the cast component or the holding component 12.

[0061] Furthermore, the insertion of the functional element or the functional component 10 in the present case takes place independently of the manufacture of the holding component 12, which in the present case takes place by means of die casting of an aluminum alloy. That is to say, the functional element or the functional component 10 does not need to be placed into the mold at the desired location already during the die casting process, for example, in order to achieve a connection to the cast component or the holding component 12, but rather the respective recesses 14 can first be provided in the holding component 12 at a plurality of locations, and only the recesses 14 required for the specific purpose of use are equipped with the respective functional components 10.

[0062] For example, from Figure 1 It can further be seen that a further hole 42 or a deepening can be formed at the bottom 34 of the recess 14. Overall, the recess 14 can thus be designed in the form of a counterbore. The further hole 42 can in particular be provided for locally reducing the wall thickness of the holding component 12. This can be meaningful for avoiding the formation of recesses / undercuts, etc. when cooling the holding component 12, which in the present case is formed as an aluminum die casting.

[0063] In particular from Figure 3It can be seen that, between the outer side 46 of the connecting element 22 and the wall 16 of the holding member 12 which delimits the recess 14 of the holding member 12 in the circumferential direction, a gap 44 can be formed. The gap 44, which is designed in the form of an air pocket, ensures that stresses which arise as a result of different thermal expansions of the material of the functional member 10 and the material of the holding member 12 can be compensated. This is advantageous, for example, if the functional member 10 is formed from steel.

[0064] In Figures 1 to 3 the functional member 10 is shown only very schematically. Thus, the functional member 10 has a functional module 48 which is provided by a subregion of the base body 24 which faces away from the abutment face 36. Depending on the design of this functional module 48, different functions can be provided by the functional member 10. This shall be explained with reference to the following figures.

[0065] For example, according to Figure 4 , the functional member 10 can be designed as a soldering lug for establishing a connection by means of spot welding. Here, a surface 50 of the functional member 10 which is opposite the abutment face 36 of the flange-like tab 26 or of the shoulder is designed to be flat. On the flat surface 50 which is shown by way of example in the design variant in this example, a connection of a further (not shown) component to the composite component 20 can be established, the composite component comprising Figure 4 the functional member 10 and the holding member 12 shown in , the surface 50 can also have a different profile or shape than a flat shape, in order to be suitable for establishing a connection to a further (not shown) component by means of welding, in particular by means of spot welding.

[0066] In contrast thereto, in the design variant shown in Figures 1 to 3 schematically, the functional module 48 has a protrusion or projection which is aligned with the connecting element 22 and which is formed or arranged on the side of the tab 26 which is opposite the abutment face 36. In other words, in this functional member 10, the abutment face 36 is formed on the side of the tab 26 which faces away from or is opposite the protrusion or projection.

[0067] According to Figures 5 to 7 a further exemplary design variant of the functional member 10 is explained, wherein the functional member 10 has a substantially pin-shaped protrusion 56. Thus, in the design variant shown in Figure 5 exemplarily, the pin-shaped protrusion 56 has a head-like end region 52 which widens relative to a shaft region 54 of the pin-shaped protrusion 56. Thus, Figure 5The functional member 10 shown is designed in the form of a ball-head bolt, which can provide a locking function. Instead of the head-shaped end region 52 shown in this example, the functional member 10 may also have other profiles suitable for locking other members with or from the rear of the composite member 20.

[0068] exist Figure 6 In the design of the functional component 10 shown, the pin-shaped protrusion 56 has an external thread designed as a coarse thread 58.

[0069] In contrast, Figure 7 In the functional component 10 shown, the pin-shaped protrusion 56 has an external thread designed as a metric thread 60.

[0070] exist Figure 6 The functional component 10 shown and Figure 7 In the functional component 10 shown, the tab 26 or shoulder is in the composite component 20 (see Figure 3 The lower side of the mounting surface 38 of the retaining member 12 is provided with a protrusion designed in the form of a protrusion 66, which protrudes from the lower side of the tab 26 or the abutment surface 36 along the pressing direction 18.

[0071] When the functional member 10 is connected to the retaining member 12 by pressing, these protrusions 66 penetrate into the retaining member 12 until the contact surface 36 of the base 24 contacts or abuts against the placement surface 38 of the retaining member 12. By providing these protrusions 66 or at least one such protrusion, torque can be effectively introduced into the retaining member 12, the torque that occurs when another component (not shown), such as a nut, is screwed onto the external thread of the functional member 10. Therefore, through the protrusions 66, in the composite member 20 (see...), Figure 3 The functional component 10 is provided with anti-torsion protection.

[0072] In a manner and method not shown in detail in this example, the end side 62 of the free end region 32 (see Figure 1 The end side 62 can be designed to be inclined relative to the abutment surface 36. Preferably, the inner edge of the end side 62 is closer to the abutment surface 36 than the outer edge of the end side 62. This inclined geometry of the end side 62 of the free end region 32 ensures particularly well that the connecting element 22 unfolds in the free end region 32 and thus penetrates into the wall portion 16 after the outer edge of the end side 62 abuts against the bottom 34 of the recess 14 (see...). Figure 2 ).

[0073] Especially from Figure 1 and Figure 2It can further be seen that the connecting element 22 in the present case has, in the state not yet deformed, in the free end region 32 a recess 64 which is delimited in the peripheral direction by a wall of the connecting element 22. This recess 64 also contributes to the fact that the connecting element 22 can unfold or expand well in the free end region 32 when the connecting element 22 is pressed into the recess 14.

[0074] Overall, these embodiments show how it is possible to provide the holding member 12 in the form of an aluminum die casting with a functional element or functional member 10 in an advantageous manner.

Claims

1. A composite component having a holding component (12) and at least one functional component, wherein The functional component (10) is fixed on the holding component (12) by pressing a connecting element (22) of the functional component (10) into a recess (14) provided in the holding component (12) and designed in the form of a blind hole, wherein the connecting element (22) projects in an undeformed state from a base body (24) of the functional component (10) in a pressing direction (18), the connecting element (22) is designed to be converted into a deformed state by applying a force (28) acting in the pressing direction (18) to the base body (24), in which deformed state the connecting element (22) expands in a free end region (32) and the free end region (32) of the connecting element (22) is inserted into a wall (16) of the holding component (12) which delimits the recess (14) of the holding component (12) in the peripheral direction, characterized in that the base body (24) of the functional component (10) has an abutment face (36) which surrounds the connecting element (22) and which, in a coupled state of the functional component (10), in which the functional component (10) is fixed on the holding component (12) by pressing the connecting element (22) into the recess (14), abuts on a seating face (38) of the holding component (12), wherein a functional module (48) of the functional component (10) is provided by a subregion of the base body (24) which faces away from the abutment face (36).

2. The composite member of claim 1, wherein The functional component is used in a motor vehicle.

3. The composite member according to claim 1 or 2, characterized by The functional module (48) is designed to fix a further component on the functional component (10), - to establish a welded connection of the functional component (10) with the further component, and / or - comprises a pin-shaped projection (56) which is aligned with the connecting element (22), wherein the abutment face (36) is formed on a side of a flange-like web (26) of the functional component (10) which faces away from the pin-shaped projection (56), the web surrounding the pin-shaped projection (56).

4. The composite member of claim 3, wherein The pin-shaped projection (56) - has an end region (52) which widens relative to a shaft region (54) of the pin-shaped projection (56), and / or - has an external thread which is designed as a metric thread (60) or as a coarse thread (58) having a larger thread pitch than the metric thread.

5. The composite member according to claim 1 or 2, characterized by An end side (62) of the free end region (32) is designed to be inclined relative to the abutment face (36), wherein an inner edge of the end side (62) is closer to the abutment face (36) than an outer edge of the end side (62).

6. The composite member of claim 1 or 2, wherein The connecting element (22) has a notch (64) in the free end region (32) in the undeformed state, which is delimited in the peripheral direction by a wall of the connecting element (22).

7. The composite member of claim 1 or 2, wherein The holding component (12) is formed at least in the region of the recess (14) from a material which is softer than the at least one functional component (10).

8. The composite member of claim 1 or 2, wherein The holding component (12) is designed as a die-cast component, and / or the at least one recess (14) has a shape of a truncated cone which widens opposite the pressing direction (18).

9. The composite member of claim 8, wherein, The holding component (12) is designed as a die-cast component formed from an aluminum alloy.

10. The composite member of claim 1 or 2, wherein In the deformed state of the connecting element (22), a clearance (44) is formed between the outer side (46) of the connecting element (22) and the wall portion (16) of the holding member (12) which delimits the recess (14) of the holding member (12) in the peripheral direction.

11. A method for securing a functional member (10) on a holding member (12), wherein The fixing is carried out by pressing the connecting element (22) of the functional member (10) into a recess (14) which is designed in the form of a blind hole and is provided in the holding member (12), wherein the connecting element (22) projects in the un-deformed state in the pressing-in direction (18) from the base body (24) of the functional member (10), wherein the connecting element (22) is brought into the deformed state by exerting a force (28) on the base body (24) in the pressing-in direction (18), in which deformed state the connecting element (22) expands in the free end region (32), wherein the free end region (32) of the connecting element (22) is inserted into the wall portion (16) of the holding member (12) which delimits the recess (14) of the holding member (12) in the peripheral direction, characterized in that the base body (24) of the functional member (10) has an abutment surface (36) which surrounds the connecting element (22) and which, in order to bring about a coupled state of the functional member (10), is intended to abut against a seating surface (38) of the holding member (12), in which coupled state the functional member (10) is fixed to the holding member (12) by pressing the connecting element (22) into the recess (14), wherein a functional module (48) of the functional member (10) is provided by a subregion of the base body (24) which faces away from the abutment surface (36).

12. The method of claim 11, wherein, The functional member is used in a motor vehicle.

13. The method according to claim 11 or 12, characterized in that, By bringing the connecting element (22) into the deformed state, the length of the connecting element (22) in the pressing-in direction (18) is reduced to a length which corresponds to the depth of the recess (14).

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