Fastening system

Abstract

The aim of the invention is to provide a fastening system, which is intended for fastening an assembly element on a support surface of a substrate, the substrate additionally having a stop surface for the assembly element, and by means of which the assembly element is mounted on the support surface under the effect of a force, rests against the stop surface, and is also held against the stop surface. This is achieved in that, when the assembly element is fastened by means of a fixing element, which extends transversely to the support surface, passes through a passage in the assembly element, and engages into the substrate, the assembly element is subjected to a hold-down force, which acts on the assembly element in the direction of the support surface, and the fixing element acts on at least one insert element provided in the passage before the hold-down force is generated and thereby generates a compressive force that acts in the passage in the direction of the support surface, the compressive force resulting in a contact force that acts on the assembly element in the direction of the stop surface.

Description

[0001] FASTENING SYSTEM

[0002] The invention relates to a fastening system for fastening a mounting body to a support surface of a substructure, which additionally has a stop surface for the mounting body.

[0003] The problem with such fastening systems is to apply force to the mounting body against the stop surface and to keep it in contact with the stop surface.

[0004] This problem is solved according to the invention in a fastening system of the type described above by the fact that, when fastened by means of a fixing element extending transversely to the bearing surface and passing through a passage in the mounting body and engaging in the substructure, the mounting body experiences a holding force acting on the mounting body in the direction of the bearing surface, and that, before generating the holding force, the fixing element acts on at least one insert element arranged in the passage and thereby generates a pressure force acting in this element in the direction of the bearing surface, which results in a contact force acting on the mounting body in the direction of the stop surface.

[0005] The advantage of the solution according to the invention is therefore that it makes it possible, on the one hand, to apply the holding force to the mounting body in the direction of the support surface and, on the other hand, to apply the contact force to the mounting body in the direction of the stop surface in order to permanently fix the mounting body optimally positioned relative to the substructure by means of the holding force. No specific details were given regarding the effect on the mounting body.

[0006] Advantageously, it is provided that at least one insert element acts with the application force on the passage in the mounting body in the direction of the stop surface.

[0007] This means that the insert element acts with the application force itself and directly on the passage in the mounting body in the direction of the stop surface.

[0008] No further details were provided regarding the generation of the plant's power.

[0009] In particular, to convert the compressive force into the system force, it is provided that at least one insert element is supported directly or indirectly relative to the substructure.

[0010] In principle, it would be conceivable to generate the contact force through various deformation processes in at least one insert element when pressure is applied.

[0011] For example, this could be achieved by supporting the insert element on one side, causing it to undergo an overall deformation that leads to the formation of the support force.

[0012] It is particularly advantageous if the generation of the installation force by the at least one insert element is achieved through a wedge effect.

[0013] The wedge effect can arise from a wide variety of interactions between the insert element and a wedge surface. One advantageous solution involves the wedge effect being achieved by a wedge surface that runs at least partially obliquely to the direction of the compressive force.

[0014] For example, it is provided that the at least one insert element, in particular in direct interaction with the wedge surface, generates the contact force acting on the mounting body in the direction of the stop surface.

[0015] The wedge surface does not necessarily have to be part of the at least one insert element.

[0016] However, it is advantageous that at least one insert element has a wedge surface that is inclined at least in some areas to its central axis.

[0017] Alternatively or additionally, the system force can also be generated by at least one insert element, which, for example, interacts with a wedge surface provided in a substructure.

[0018] However, it is particularly advantageous if two insert elements are provided that interact via at least one wedge surface, one of which in particular is supported relative to the substructure.

[0019] It is particularly advantageous if one of the insert elements interacts with the other insert element via a wedge surface.

[0020] For example, one of the insert elements is provided in the passage, and another insert element is provided that is inserted into a receptacle in the substructure.

[0021] No further details have yet been provided regarding the design of the insert elements. One solution proposes that at least one insert element be designed to enclose the fixing element in a sleeve-like manner.

[0022] One advantageous solution provides that at least one of the insert elements has a rotationally symmetrical basic shape.

[0023] Such a rotationally symmetrical basic shape has the advantage of being easy to manufacture and easy to assemble without defined orientation, while offering high form stiffness.

[0024] In the case of rotationally symmetric insert elements, it is preferably provided that the insert element has a conical surface as a wedge surface, in particular a conical surface circumferential around the fixing element as a wedge surface.

[0025] An alternative solution proposes that the insert element is deformed by applying pressure in the area of ​​the passage in the mounting body so that it acts on the mounting body with the contact force in the direction of the stop surface.

[0026] For example, the insert element is deformed in certain areas to expand its shape, in order to generate the clamping force by means of this area-specific shape expansion.

[0027] In particular, it is provided that the insert element is designed as a sleeve body and expands when subjected to the pressure force in order to apply the contact force to the mounting body in the direction of the stop surface.

[0028] In particular, the compressive force leads to a localized widening of the diameter of the sleeve body, which then bears against the substructure when the contact force is applied. It is advantageous if the insert element is designed in such a way that it engages in a receptacle in the substructure and is supported in this receptacle during its deformation, in order to develop the contact force acting on the mounting body in the direction of the contact surface.

[0029] For example, it is provided that the insert element in the substructure is supported on a support surface in order to deform the insert element, which is designed as a sleeve body, by applying pressure.

[0030] Furthermore, it is preferably provided that the bearing surface in the receptacle is arranged in the substructure and thus the receptacle easily enables both support and fixation of the insert element.

[0031] In particular, it is provided that the receptacle supports the insert element on a side of the receptacle opposite the stop surface in order to develop the contact force acting in the direction of the stop surface.

[0032] In this case, the insert element can be sufficiently fixed in the holder to exert the contact force acting on the mounting body during deformation caused by the pressure force.

[0033] A wide variety of solutions are conceivable for generating the compressive force in the insert element.

[0034] Preferably, the at least one insert element is provided with a deformable area which, when acted upon by the fixing element, absorbs and transmits the pressure force.

[0035] In particular, the compressive force initially leads to the generation of the contact force due to the effect of the wedge surface or the deformation, especially spreading, of the sleeve body. One solution involves, for example, combining a spring element with the insert element.

[0036] Preferably, the deformable area is a substantially plastically deformable or elastoplastically or elastically deformable area in order to have a sufficiently large compressive force available as a result of the deformation to generate the contact force and the holding force.

[0037] Furthermore, to generate the greatest possible clamping force, it is advantageous if the fixing receptacle in the substructure has a central axis whose distance from the stop surface is smaller than the distance of a central axis of the passage in the mounting body from the alignment surface of the mounting body.

[0038] In particular, with this solution, the support of at least one insert element in the culvert is achieved according to the offset of the central axis in the substructure relative to the central axis in the culvert.

[0039] The advantage of this solution is that it allows the direction of the plant force to be easily specified and, in particular, promoted, due to the different distances.

[0040] It is advantageously provided that, prior to the application of the fixing element to the at least one insert element, with the mounting body in contact with the stop surface, the fixing element fixed in the fixing receptacle in the substructure is offset relative to the passage in the mounting body, in particular with respect to its central axis in the direction of the stop surface.

[0041] This allows the direction of the clamping force to be determined in a particularly simple way by applying the compressive force to at least one insert element. No further details have yet been provided regarding the design of the fixing element.

[0042] One particularly advantageous solution provides that the fixing element is designed as a screw which penetrates the opening in the mounting element and can be fixed in a fixing receptacle designed as a bore with internal thread in the substructure.

[0043] The foregoing description of solutions according to the invention thus includes in particular the various combinations of features defined by the embodiments numbered below.

[0044] 1. Fastening system (10) for fastening a mounting body (12) to a support surface (16) of a substructure (14), which additionally has a stop surface (18) for the mounting body (12), wherein the mounting body (12) is fastened by means of a fixing element (32) extending transversely to the support surface (16) and passing through a passage (34) in the mounting body (12) and engaging in the substructure (14), experiencing a holding force (92) acting on the mounting body (12) in the direction of the support surface (16), and wherein, before generating the holding force (92), the fixing element (32) acts on at least one insert element (52, 53) arranged in the passage (34) and thereby generates a compressive force (84) acting in the insert element in the direction of the support surface (16), which exerts a contact force (86) on the mounting body (12) in the direction of the stop surface (18). This has consequences.

[0045] 2. Fastening system according to embodiment 1, wherein the at least one insert element (52, 53) acts with the contact force (86) on the passage (34) in the mounting body (12) in the direction of the stop surface (18).

[0046] 3. Fastening system according to embodiment 1 or 2, wherein the at least one insert element (52, 53) is supported relative to the substructure (14) to convert the compressive force (84) into a contact force (86). 4. Fastening system according to one of the preceding embodiments, wherein the conversion of the compressive force (84) into a contact force (86) is effected by the at least one insert element (52, 53) by means of a wedge effect.

[0047] 5. Fastening system according to embodiment 4, wherein the wedge effect is achieved by a wedge surface (68) which extends at least partially obliquely to the direction of the pressure force (84).

[0048] 6. Fastening system according to one of the preceding embodiments, wherein the at least one insert element (52, 53) in conjunction with the wedge surface (68) generates the contact force (86) acting on the mounting body (12) in the direction of the stop surface (18).

[0049] 7. Fastening system according to embodiment 5 or 6, wherein the at least one insert element (52, 53) has a wedge surface (68) which is inclined at least in some areas to its central axis (72, 74).

[0050] 8. Fastening system according to one of the preceding embodiments, wherein two insert elements (52, 53) are provided which interact via at least one wedge surface (68).

[0051] 9. Fastening system according to embodiment 8, wherein each of the insert elements (52, 53) interacts with the other insert element (52, 53) via a wedge surface (68', 71', 102, 106).

[0052] 10. Fastening system according to embodiment 8 or 9, wherein a further insert element (53) is provided which is inserted into a receptacle (94) in the substructure (14).

[0053] 11. Fastening system according to one of the preceding embodiments, wherein the at least one insert element (52, 53) is designed to enclose the fixing element (32) in a sleeve-like manner. 12. Fastening system according to one of the preceding embodiments, wherein the at least one insert element (52, 53) has a rotationally symmetrical basic shape.

[0054] 13. Fastening system according to one of embodiments 7 to 12, wherein the at least one insert element (52'. 53') has a conical surface (68) as a wedge surface.

[0055] 14. Fastening system according to one of the preceding embodiments, wherein the insert element (52'') is deformed by applying the pressure force (84) in the area of ​​the passage (34) in the mounting body (12) so that it acts on the mounting body (12) with the contact force (86) in the direction of the stop surface (18).

[0056] 15. Fastening system according to embodiment 14, wherein the insert element (52'') is designed as a sleeve body (56'') and expands when subjected to the pressure force (84).

[0057] 16. Fastening system according to embodiment 14 or 15, wherein the insert element (52'') engages in a receptacle (94'') in the substructure (14) and is supported in it during its deformation.

[0058] 17. Fastening system according to embodiments 14 to 16, wherein the insert element (52'') is supported in the substructure (14) on a support surface (96'').

[0059] 18. Fastening system according to embodiment 17, wherein the contact surface (96) is arranged in the receptacle (94'') in the substructure (14).

[0060] 19. Fastening system according to one of embodiments 14 to 18, wherein the receptacle (94"') supports the insert element (52"') on a side of the receptacle (94"' opposite the stop surface (18) to develop the contact force (86) acting in the direction of the stop surface (18).

[0061] 20. Fastening system according to one of the preceding embodiments, wherein the at least one insert element (52, 53) is provided with a deformable area (82) by applying pressure with the fixing element (32).

[0062] 21. Fastening system according to embodiment 20, wherein the deformable area (82) is a plastically or elastoplastically or elastically deformable area (82).

[0063] 22. Fastening system according to one of the preceding embodiments, wherein the fixing receptacle (36) in the substructure (14) has a central axis (74) whose distance (AM) from the stop surface (18) is less than a distance (AD) of a central axis (72) of the passage (34) in the mounting body (12) from the alignment surface (24) of the mounting body (12).

[0064] 23. Fastening system according to one of the preceding embodiments, wherein, prior to the application of the fixing element (32) to the at least one insert element (52, 53) with the fixing element (32) in the mounting body (12) in contact with the stop surface (18), the fixing element (32) which is fixed in the fixing receptacle (36) in the substructure (14) is offset relative to the passage (34) in the mounting body (12) with respect to its central axis (72) in the direction of the stop surface (18).

[0065] 24. Fastening system according to one of the preceding embodiments, wherein the fixing element (32) is designed as a screw which passes through the opening (34) in the mounting element (12) and is secured in a fixing receptacle (36) in the form of an internal thread (42) in the substructure (14). Further features and advantages of the invention are the subject of the following description and the graphic representation of some exemplary embodiments.

[0066] The drawing shows:

[0067] Fig. 1 shows a cross-section through a first embodiment of a mounting element on a substructure with a first embodiment of a fastening system according to the invention;

[0068] Fig. 2 shows an enlarged view of area A in Fig. 1 with the mounting body and insert element not yet actuated;

[0069] Fig. 3 shows a representation corresponding to Fig. 2 with an insert element acted upon by a fixing element when generating a pressure force and a contact force and the effect of the holding force;

[0070] Fig. 4 shows a representation similar to Fig. 1 of a second embodiment;

[0071] Fig. 5 shows an enlarged view of area B in Fig. 4 with the insert element and mounting element not yet actuated;

[0072] Fig. 6 shows a representation similar to Fig. 5 with the insert element and mounting element actuated by the fixing element;

[0073] Fig. 7 shows a representation similar to Fig. 1 of a third embodiment of a fastening system according to the invention; Fig. 8 shows an enlarged view of area C in Fig. 7 with the insert element and mounting element not yet actuated;

[0074] Fig. 9 shows an illustration of area C after the insertion element and the mounting element have been acted upon by the fixing element;

[0075] Fig. 10 shows a representation similar to Fig. 1 of a fourth embodiment of a fastening system according to the invention;

[0076] Fig. 11 shows an enlarged view of area D in Fig. 10 with the insert element and mounting element not yet actuated;

[0077] Fig. 12 shows a representation of area D after the insert element and the mounting element have been acted upon by the fixing element; and

[0078] Fig. 13 shows an application of the third embodiment of the fastening system according to the invention with a guide rail as a mounting element and a machine bed as a base.

[0079] In a first embodiment of a fastening system 10 according to the invention, a mounting body 12 is mounted on a substructure 14, which has a support surface 16 and a stop surface 18 for the mounting body 12, against which the mounting body 12 rests in the mounted state. For this purpose, the mounting body 12 comprises a support surface 22, which can be placed on the support surface 16, and an alignment surface 24, which can be placed against the stop surface 18 of the substructure 14.

[0080] In order to fix the mounting body 12 on the substructure 14, a fixing element designated as a whole by 32 is provided, which extends transversely to the support surface 16, passes through a passage 34 in the mounting body 12 and engages in a fixing receptacle 36 in the substructure and can be fixed or secured in this receptacle.

[0081] In the simplest case, the fixing element 32 is designed as a screw which engages with an external thread 38 in the fixing receptacle 36 in the substructure which has an internal thread 42.

[0082] Furthermore, an insert element designated as a whole by 52 is inserted into the passage 34, which surrounds a section 54 of the fixing element 32 passing through the passage 34 with clearance.

[0083] Preferably, the insert element 52 is designed as a rotationally symmetrical sleeve body 56, which extends from an upper end facing a head 58 of the fixing element 32 to a lower end facing the fixing receptacle 36.

[0084] The upper end of the sleeve body 56 faces a collar 62 which can be acted upon by the head 58 of the fixing element 32.

[0085] The lower end of the sleeve body 56 faces a receptacle 70 provided in the substructure 14 and widening in the direction of the sleeve body 56, and is supported in this receptacle.

[0086] The receptacle 70 is preferably designed as a rotationally symmetrical conical receptacle with a conical surface 71, widening conically towards the bearing surface 16. The sleeve body 56 in turn has a cone 64 facing the conical receptacle 70, which has a conical surface 68 that narrows conically from an outer surface 66 of the sleeve body 56 towards the base 14.

[0087] Preferably the cone 64 is rotationally symmetrical with the cone surface 68 of the sleeve body 56 in order to cooperate with the cone receptacle 70.

[0088] Furthermore, the passage 34 in the mounting body 12 has a central axis 72, which is arranged at a distance AD ​​from the alignment surface 24 that is greater than a distance AM of the central axis 74 of the fixing receptacle 36 from the stop surface 18, so that an axis offset AV exists between the central axes 72, 74 in the state of the sleeve body 56 not acted upon by the fixing element 32.

[0089] The difference in the distances AD minus AM is at least 0.5% of the diameter of the passage 34.

[0090] Since the sleeve body 56 has an inner passage 76 which receives the section 54 of the fixing element 32 with a first clearance, but the insert element 52 with its outer surface 66 rests in the passage 34 with a second, smaller clearance, the cone 64 of the insert element 52 with its conical surface 68 sits in the cone receptacle 70 only on one side facing away from the alignment surface 24, since the cone receptacle 70 is arranged and designed coaxially to the central axis 74, as shown in Fig. 2.

[0091] Before the head 58 acts on the collar 62, the collar 62 is positioned by the sleeve body 56, which is supported by its conical surface 68 on the conical receptacle 70 and supports the collar 62 radially inside, such that a gap remains between the collar 62 and a ring flange 88 of the mounting body 12 enclosing the sleeve body 56 for the purpose of applying pressure to the mounting body in the direction of the bearing surface 14, which results in the insertion element 52 being applied by the fixing element 32 with the sleeve body 56 before the mounting body 12 is applied.

[0092] When the fixing element 32 is fixed in the fixing receptacle 36, its head 58 acts in the direction of the collar 62 and moves the collar 62 in the direction of the bearing surface 16, initially acting on the sleeve body 56 of the insert element 52, as shown in Fig. 2.

[0093] This results in the insert element 52, supported on the substructure 14, experiencing a compressive force 84 in the direction of the support surface 16 (Fig. 3).

[0094] This compressive force 84 causes at least an axial, essentially plastic or plastoelastic or elastic deformation of the section 82 provided in the insert element 52, shortening the sleeve body 56, whereby the cone 64 is pressed into the cone receptacle 70 due to the compressive force 84 and thereby the sleeve body 56 exerts a contact force 86 on the passage 34 and thus on the mounting body 12 due to the resulting reduction of the axial offset AV, acting in the direction of the stop surface 18, as shown in Fig. 3, which causes the alignment surface 24 to be pressed by the contact force 86 in the direction of and thus in contact with the stop surface 18, so that the mounting body 12 with its alignment surface 24 remains exactly positioned relative to the stop surface 18, as shown in Fig. 3.

[0095] This action of the collar 62 on the insert element 52 in the axial direction is limited by the fact that the collar 62 initially acts on the sleeve body 56, and during its axial displacement in the direction of the substructure 14 finally comes into contact with the ring flange 88 in the mounting body 12, thereby applying a holding force 92 to the mounting body 12 and pressing it against the bearing surface 16, wherein preferably the holding force 92 in conjunction with the friction between the support surface 22 and the bearing surface 16 holds the mounting element 12 permanently in contact with the alignment surface 24 against the stop surface 18.

[0096] In a second embodiment of a fastening system 10' according to the invention, shown in Figs. 4 to 6, the elements that are identical to those of the first embodiment are provided with the same reference numerals, so that with regard to the description and function of the same, reference is made to the explanations of the first embodiment.

[0097] In contrast to the first embodiment, the second embodiment of the fastening system 10' according to the invention provides a first insert element 52' with a sleeve body 56', which interacts with a second insert element 53, which is fitted into a receptacle 94 in the substructure 14 and is thereby supported on the substructure 14, wherein the receptacle 94 is designed as part of the fixing receptacle 36'.

[0098] In contrast to the first embodiment, the sleeve body 56' comprises at its lower end facing the insert element 53 a cone 64' with a cone surface 68' which widens radially from its inner passage 76 towards the second insert element 53, which interacts with a cone receptacle 70' provided on the second insert element 53 and facing the first insert element 52', the cone surface 71' of which tapers towards the first insert element 52' and thus interacts with the cone surface 68'.

[0099] Due to the fact that, in the second embodiment as well, the central axis 72 of the passage 34 in the mounting body 12 and the central axis 74 of the fixing receptacle 36 are arranged at different distances AD from the alignment surface 24 and AM from the stop surface 18 respectively, the following applies, as shown in Fig.

[0100] 5 shows that the insert element 52', which is not yet acted upon by the fixing element 32, rests primarily on the cone surface 71' on one side facing the stop surface 18 of the substructure 14, while the sleeve body 56' with its outer surface 66 is already in contact with the side of the passage 34 facing the stop surface 18 and the alignment surface 24.

[0101] Since the second insert element 53 is supported and fixed in the receptacle 94 by the bearing surface 96 formed by the latter in the direction of the axis 74 relative to the substructure 14, the impact of the insert element 52' in the area of ​​the collar 62 by the head 58 of the fixing element 32, in a manner comparable to that described in the first embodiment, causes the essentially plastic or plastoelastic or elastic deformation of the section 82 and the build-up of the compressive force 84, which acts in the direction of the substructure 14 and thus presses the cone 64' with the cone surface 68' more firmly into the cone receptacle 70' with the cone surface 71', and, due to the reduction of the axial offset AV, the formation of a contact force 86, with which the insert element 52' with its outer surface 66 acts on the passage 34 in the direction of the stop surface 18 in order to align the alignment surface 24 on the stop surface 18 to be set up as shown in Fig. 6.

[0102] In a third embodiment, shown in Figs. 7 to 9, those elements of the fastening system 10", which are identical to those in the preceding embodiments, are also provided with the same reference numerals, so that with regard to their description and function reference can be made in full to the explanations of the preceding embodiments.

[0103] In contrast to the preceding embodiments, the third embodiment of the fastening system 10" according to the invention provides an insert element 52" whose end region facing the insert element 53" has an inclined surface 102 which runs at an acute angle to the axis 72 and is preferably oriented such that its lower end 104 lies on a side facing the stop surface 18. In adaptation to the inclined surface 102, the insert element 53" also has an inclined surface 106 which runs at the same acute angle to the axis 74 and the inclined surface 102 and whose lower end 108 also lies on a side facing the stop surface 18.

[0104] The insert element 53" is received in the same way as the insert element 53' of the second embodiment in the receptacle 94 encompassed by the fixing receptacle 36 in the substructure 14, in particular fittingly, and supported by the support surface 96 provided in the substructure 14, so that the insert element 53" is arranged immovably in the substructure 14.

[0105] Without pressure being applied to the sleeve body 56" of the insert element 52", the latter rests with its inclined surface 102 on the inclined surface 106 of the insert element 53", whereby, due to the different offset of the axes 72 and 74 relative to the alignment surface 24 and to the stop surface 18 respectively, the insert element 52" rests, due to the position of the passage 34, with the inclined surface 102 of the insert element 52" shifted on the inclined surface 106 of the insert element 53" in the direction away from the stop surface 18, as shown in Fig. 8.

[0106] By applying pressure to the insert element 52" by means of the collar 62 and the resulting essentially plastic, or plastoelastic or elastic deformation of the section 82, the compressive force 84 (Fig. 9) is generated, with which the insert element 52" acts on the insert element 53", so that the insert element 52" with its inclined surface 102 slides on the inclined surface 106, thereby reducing the axial offset AV and thus moving in the direction of the stop surface 18 and thereby generating the contact force 86, with which the insert element 52" with its outer surface 66 acts against the passage 34 and thus applies force to the mounting body 12 with the alignment surface 24 against the stop surface 18.In the third embodiment, however, due to the non-rotationally symmetric design of the insert elements 52" and 53", a defined orientation of the insert elements 52", 53" must be specified such that their interaction under the formation of the contact force 86 is directed in the direction of the stop surface 18, so that such insert elements 52" and 53" require a defined orientation during installation.

[0107] In a fourth embodiment of a fastening system 10"' according to the invention, those elements of the fastening system 10"' which are identical to those in the preceding embodiments are provided with the same reference numerals, so that with regard to the description and function, full reference can be made to the explanations of the preceding embodiments.

[0108] In contrast to the preceding embodiments, in particular the first embodiment, the fourth embodiment of the fastening system 10"' according to the invention provides an insert element 52"' which rests on the collar 62 with a first diameter Dl acted upon by the head 58 of the fixing element 32, then extends into a receptacle 94"' in the substructure 14 and is supported on a bearing surface 96"' in the substructure 14.

[0109] Starting from the diameter Dl, the diameter of the insert element widens 52"' to a diameter D2, which is enlarged in the area above and below the bearing surface 16"' relative to the diameter Dl, and then tapers again to a diameter D3, which is smaller than the diameter D2 in the area of ​​the bearing surface 96"' and, for example, corresponds approximately to the diameter Dl, or may deviate from it, as long as the diameter D3 is smaller than the diameter D2.

[0110] Furthermore, the sleeve body 56" in the area of ​​diameter D2 comprises a deformable section 82"' formed, for example, by wall thickness variations, in particular circumferential grooves, which expands further when pressure force 84 is applied, so that the sleeve body 56"' expands additionally in a locally defined manner in the area of ​​the deformable section 82"' when subjected to the pressure force 84.

[0111] Furthermore, the central axis 72 of the passage 34"' in the mounting body 12 is offset from a central axis 74"' of the fixing element 32, in the direction away from the stop surface 18"'.

[0112] This has the particular consequence that when the sleeve body 56"' is subjected to the compressive force 84, it expands radially outwards in the deformable area 82, increasing the diameter D2, and thus leads to a substantially plastic or plastoelastic or elastic deformation of the section 82"' with shortening of the sleeve body 56"', whereby a contact force 86 acting in the direction of the stop surface 18 acts on the passage 34 and thus on the mounting body 12, as shown in Fig.12, and thus causes the alignment surface 24 to be pressed against the stop surface 18, so that the mounting body 12 with its alignment surface 24 is positioned exactly relative to the stop surface 18 and remains in this position until the collar 62 comes into contact with the ring flange 88 of the mounting body 12, thereby applying the holding force 92 to the mounting body 12 and, in conjunction with the friction between the support surface 22 and the bearing surface 16, permanently holding the mounting element with the alignment surface 24 against the stop surface 18.

[0113] As shown in Fig. 13, the fastening systems 10 according to the invention, exemplified by the fastening system 10", can be used to fasten a guide rail 110 representing a mounting body 12 to a machine bed 112 serving as a base 14, so that the individual fastening systems 10" by being attached at defined intervals from one another along the guide rail 110 serve as a whole to precisely position the guide rail 110 with the alignment surface 24 against the stop surface 18 of the machine bed 112 and to keep it permanently in place.

Claims

PATENT CLAIMS 1. Fastening system (10) for fastening a mounting body (12) to a support surface (16) of a substructure (14), which additionally has a stop surface (18) for the mounting body (12), characterized in that, when fastened by means of a fixing element (32) extending transversely to the support surface (16) and passing through a passage (34) in the mounting body (12) and engaging in the substructure (14), the mounting body (12) experiences a holding force (92) acting on it in the direction of the support surface (16), and that, before generating the holding force (92), the fixing element (32) acts on at least one insert element (52, 53) arranged in the passage (34) and thereby generates a compressive force (84) acting in it in the direction of the support surface (16), which exerts a contact force on the mounting body (12) in the direction of the stop surface (18). (86) results.

2. Fastening system according to claim 1, characterized in that the at least one insert element (52, 53) acts with the contact force (86) on the passage (34) in the mounting body (12) in the direction of the stop surface (18).

3. Fastening system according to claim 1 or 2, characterized in that, in order to convert the compressive force (84) into a support force (86), the at least one insert element (52, 53) is supported relative to the substructure (14).

4. Fastening system according to one of the preceding claims, characterized in that the conversion of the compressive force (84) into a contact force (86) is carried out with the at least one insert element (52, 53) by means of a wedge effect.

5. Fastening system according to claim 4, characterized in that the wedge effect is achieved by a wedge surface (68) which extends at least partially obliquely to the direction of the compressive force (84).

6. Fastening system according to one of the preceding claims, characterized in that the at least one insert element (52, 53) in conjunction with the wedge surface (68) generates the contact force (86) acting on the mounting body (12) in the direction of the stop surface (18).

7. Fastening system according to claim 5 or 6, characterized in that the at least one insert element (52, 53) has a wedge surface (68) which is inclined at least in some areas to its central axis (72, 74).

8. Fastening system according to one of the preceding claims, characterized in that two insert elements (52, 53) are provided which interact via at least one wedge surface (68).

9. Fastening system according to claim 8, characterized in that each of the insert elements (52, 53) interacts with the other insert element (52, 53) via a wedge surface (68', 71', 102, 106).

10. Fastening system according to claim 8 or 9, characterized in that a further insert element (53) is provided which is inserted into a receptacle (94) in the substructure (14).

11. Fastening system according to one of the preceding claims, characterized in that the at least one insert element (52, 53) is designed to enclose the fixing element (32) in a sleeve-like manner.

12. Fastening system according to one of the preceding claims, characterized in that the at least one insert element (52, 53) has a rotationally symmetrical basic shape.

13. Fastening system according to one of claims 7 to 12, characterized in that the at least one insert element (52'. 53') has a conical surface (68) as a wedge surface.

14. Fastening system according to one of the preceding claims, characterized in that the insert element (52'') is deformed by applying the pressure force (84) in the area of ​​the passage (34) in the mounting body (12) so that it acts on the mounting body (12) with the contact force (86) in the direction of the stop surface (18).

15. Fastening system according to claim 14, characterized in that the insert element (52'') is designed as a sleeve body (56'') and expands when subjected to the pressure force (84).

16. Fastening system according to claim 14 or 15, characterized in that the insert element (52"') engages in a receptacle (94"') in the substructure (14) and is supported in it during its deformation.

17. Fastening system according to claims 14 to 16, characterized in that the insert element (52'') is supported on a contact surface (96'') in the substructure (14).

18. Fastening system according to claim 17, characterized in that the contact surface (96) is arranged in the receptacle (94'') in the substructure (14).

19. Fastening system according to one of claims 14 to 18, characterized in that the receptacle (94"') supports the insert element (52"') on a side of the receptacle (94"' opposite the stop surface (18) to develop the contact force (86) acting in the direction of the stop surface (18).

20. Fastening system according to one of the preceding claims, characterized in that the at least one insert element (52, 53) is provided with a deformable area (82) by applying pressure by means of the fixing element (32).

21. Fastening system according to claim 20, characterized in that the deformable area (82) is a plastically or elastoplastically or elastically deformable area (82).

22. Fastening system according to one of the preceding claims, characterized in that the fixing receptacle (36) in the substructure (14) has a central axis (74) whose distance (AM) from the stop surface (18) is less than a distance (AD) of a central axis (72) of the passage (34) in the mounting body (12) from the alignment surface (24) of the mounting body (12).

23. Fastening system according to one of the preceding claims, characterized in that, prior to the application of the fixing element (32) to the at least one insert element (52, 53) with the fixing element (32) in the mounting body (12) in contact with the stop surface (18), the fixing element (32) which is fixed in the fixing receptacle (36) in the substructure (14) is offset relative to the passage (34) in the mounting body (12) with respect to its central axis (72) in the direction of the stop surface (18).

24. Fastening system according to one of the preceding claims, characterized in that the fixing element (32) is designed as a screw which passes through the passage (34) into the mounting element (12) and is fixed in a fixing receptacle (36) in the form of an internal thread (42) in the substructure (14).

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