SETTINGS

Description

[0001] The present invention relates to a setting device for attaching an element to a workpiece.

[0002] In the mass production of workpieces, positioning devices are frequently used to attach elements that provide specific functions. Such elements can be, for example, nuts or bolts that serve as attachment points for other components. These devices are used, for instance, to attach fasteners to sheet metal parts. A typical application for such positioning devices is in automotive manufacturing. However, they are also widely used in other sectors.

[0003] WO 94 / 15736 A1 discloses a fastening machine according to the preamble of claim 1 with a rivet feed channel in which a rivet head with spring-loaded balls is engaged to align the rivet with the rivet feed channel and a punch.

[0004] DE 32 36 547 A1 describes a rotary screwdriver which has a collet chuck in the area of ​​a nozzle for holding supplied screws, wherein the collet chuck consists of several clamping jaws which are surrounded by a 25 elastic ring.

[0005] From DE 17 28 463 A1 an automatic screwdriver with a nozzle is known which has two holding jaws connected by means of an elastic rubber, which prevent a screw from falling out in the conveying direction.

[0006] US Patent 2,845,968 A also describes an electrically operated screwdriver which has means in the area of ​​a mouthpiece that hold a screw in position so that it can be contacted by a screw tool and which at the same time allow free rotation of the screw.

[0007] DE 24 15 241 A1 discloses a device for pneumatically feeding screws into a nozzle of a screwdriver, wherein the nozzle has steel balls for a centric fixation of fed screws which are surrounded by rubber-like flat rings.

[0008] For the quality of the workpiece, it is crucial that the element is reliably and controllably fixed to it. In other words, the element must be fed into the workpiece and pressed against or into it in a reproducible manner. The pressing force required to fix the element is applied by a punch. To enable precise feeding and positioning of the element, the setting device is equipped with a guide that guides the element securely and accurately during feeding and pressing. For this purpose, the guide has an axial cavity through which the element is guided in a setting direction—that is, toward the workpiece—by means of the axially movable punch. The guide has at least two guide elements that define the cavity or limit it in the radial direction.The guide elements are prestressed by means of a prestressing device that generates a prestressing force acting radially inwards – i.e., towards a longitudinal axis of the cavity – on at least one of the guide elements. This prestressing ensures that the element can be guided through the cavity without lateral play, thus minimizing the risk of the element tilting. The at least two guide elements are movable relative to each other, at least partially. Preferably, they are designed separately. In certain cases, however, it is also possible to form the guide elements integrally, allowing for (elastic) bending of the elements relative to each other. In this context, one might consider, for example, two half-shells that are joined together (e.g., integrally) on one of their respective longitudinal sides, thus forming a kind of clamp or ring with a slot.It is also possible to use a section of a component of the setting device that receives the guide device as a guide element and to provide at least a second guide element that is pre-tensioned radially inwards. For example, the pre-tensioned guide element presses the fastener to be set against a section of an inner surface of a housing component that receives the guide device as it moves through the cavity.

[0009] Such setting devices are generally known. However, malfunctions can occur, for example, if the element is not fed correctly. Such malfunctions lead to defective workpieces and / or production downtime, which is associated with considerable costs. A reliable design of the setting devices is therefore of great importance. However, such setting devices are complex and expensive.

[0010] It is an object of the present invention to provide a more cost-effective and structurally simpler setting device of the type mentioned above, which is at the same time reliable and delivers good results.

[0011] This problem is solved by a setting device having the features of claim 1.

[0012] According to the invention, the preloading device comprises at least one elastic preloading element generating the preload force, which is at least partially made of an elastomer. Such a preloading element can be manufactured cost-effectively and provides the required preload force reliably and reproducibly.

[0013] The prestressing element is a circumferentially closed, ring-shaped element that surrounds the guide elements on their radial outer surface in the circumferential direction. It can, in principle, have any circumferential and / or cross-sectional geometry, e.g., a rectangular, square, circular, or oval circumferential and / or cross-sectional geometry.

[0014] The preloading element can have a contact section that is arranged, in particular attached or integrally formed, on the guide device and that projects radially beyond an outer contour of the guide elements in at least one section of the guide device. Alternatively or additionally, the contact section can be arranged, in particular attached or integrally formed, on a component of the setting device that at least partially accommodates the guide device, in particular on a housing section, wherein the contact section projects radially inwards. Another embodiment, which can also be combined with the embodiments described above, provides that the preloading element is a separate component with a contact section that is arranged radially between the guide device and a component of the setting device that at least partially accommodates the guide device, in particular a housing section.

[0015] Such a system section forms at least one support point for the radial support of the guide direction. It can also be provided on a prestressing element surrounding the guide elements in the circumferential direction, be formed by the prestressing element itself, or – as mentioned – be an independent functional component.

[0016] In particular, the system section is arranged on a radial outer side of one of the guide elements.

[0017] Several system sections can be provided, distributed, particularly symmetrically, in the circumferential direction of the guide device and / or in the circumferential direction of a component of the setting device that at least partially accommodates the guide device. This enables uniform support of the guide device and is easy to implement from a manufacturing perspective. The system sections can be designed separately from one another.

[0018] According to the invention, guide elements adjacent in the circumferential direction are separated from each other by at least one interruption, for example by a slot.

[0019] The guide elements are electrically insulated from one another. This is particularly advantageous when the guide elements (or parts thereof) themselves act as electrical contacts. At least one insulating element is arranged in the gap, in particular wherein the insulating element comprises or is made entirely of an electrically insulating and / or elastic material. The insulating element can substantially fill the gap completely. However, partial filling is sufficient in many cases. Preferably, the insulating element comprises an elastomer or is formed entirely of an elastomer. It can have a circular, oval, trapezoidal, or wedge-shaped cross-section. The geometry of the insulating element can be substantially constant in the longitudinal direction of the insulating element. However, a geometry that varies in the longitudinal direction is also conceivable.

[0020] The geometry of the prestressing element can also be adapted to the specific requirements. According to the invention, it is essentially constant in the circumferential direction of the prestressing element.

[0021] The prestressing element and / or the insulating element may comprise a vulcanized elastomeric plastic or be formed entirely from it.

[0022] The prestressing element and the insulating element are formed in one piece. However, they can also be manufactured separately (not according to the invention). Both the prestressing element and the insulating element can be multi-part components.

[0023] According to one embodiment, the prestressing element and / or the insulating element are at least partially integrally formed on the guide device, in particular on at least one of the guide elements.

[0024] The present invention is explained below by way of example with reference to advantageous embodiments and the accompanying drawings. These show: Fig. 1 shows a setting device in a perspective view, Figs. 2 to 6 show a cross-section through the setting device according to Fig. 1 in various operating states, Fig. 7 shows a cross-section through the setting device according to Fig. 1 In the event of a malfunction, Fig. 8 shows a cross-section through a base plate of the setting device with an example of a guide device, Fig. 9 shows the components of the guide device according to Fig. 8in an exploded view, Fig. 10A to 10; your embodiment of the guide device according to the invention in a perspective view, a cross-section or two longitudinal sections, Fig. 11; a further example of the guide device in a perspective view, Fig. 12; an embodiment of the base plate in a perspective view, Fig. 13; a cross-section through the base plate according to Fig. 12 , Fig. 14A to 14Your further example of the guide device in a perspective view, a cross-section or two longitudinal sections, Fig. 15A to 15Your further example of the guide device in a perspective view, a cross-section or two longitudinal sections, Fig. 16 to 18further embodiments of the guide device, Fig. 19an embodiment of the guide element and Fig. 20 to 22furt embodiments of the guide device.

[0025] Fig. 1Figure 1 shows a setting device 10 in a perspective view. This device comprises a guide housing 12 and a guide plate 14. The setting device 10 has a sensor 16 that monitors whether the setting device 10 is in a closed or open state. A base plate 18 is arranged on the guide plate 14, which can be brought into contact with a workpiece in order to attach a fastener to it.

[0026] Fig. 2 Figure 1 shows a cross-section through part of the guide plate 14 and through the base plate 18. The guide plate 14 has a feed channel 20 through which the fastening element 22, to be attached to the workpiece, can be brought into a position from which it can be pressed towards and into the workpiece by a punch or plunger 24 movable in a setting direction S. Fig. 2The figure shows an initial situation / position in which element 22 is clamped by means of a holding finger. The setting device 10 is open and element 22 can be processed. The base plate 18 has already been brought into contact with a surface of a workpiece 36 to which element 22 is to be attached. It is understood that the workpiece 36, shown here as an example sheet metal part, can also be designed differently. The same applies to element 22.

[0027] In Fig. 3 The element 22, coming from its initial position, is pressed by the punch 24 into a channel-like axial cavity 26 of a guide device 28 in the base plate 18. The retaining fingers are thereby pushed back.

[0028] The guide device 28 comprises a plurality of guide segments 30A, 30B. The segments 30A, 30B are separate components separated from one another by a slot 39, each having a circular segment-like cross-section and arranged such that they circumferentially delimit the cavity 26. They are pre-tensioned by a pre-tensioning device (not shown in detail) in one direction towards a longitudinal axis 32H of the cavity 26, which is arranged coaxially with a longitudinal axis 32S of the punch 24, i.e., radially inwards. As soon as the element 22 enters the cavity 26, the segments 30A, 30B are pressed outwards against the pre-tensioning force generated by the pre-tensioning device.

[0029] Fig. 4Figure 1 shows how the element 22 is pushed through the cavity 26 of the guide device 28. A circumferential surface 34 of the element 22 interacts with the segments 30A and 30B. The preload force ensures reliable guidance of the element 22, minimizing the risk of tilting or jamming.

[0030] Fig. 5Figure 1 shows how element 22 is pressed into the workpiece 36, which is only indicated. Element 22 is a self-punching element. For the sake of simplicity, the deformation of a rivet section 38 of element 22, which can be achieved by the action of a die (not shown), is not shown. For example, the deformed rivet section 38 engages the workpiece 38 on its rear side. A punch slug (not shown) has been removed. For the sake of completeness, it should be noted that the setting device 10 can also be used with non-self-punching elements 22. In this case, the workpiece 36 is pre-drilled in a suitable manner.

[0031] Fig. 6This shows the "normal case": After the element 22 is attached to the workpiece 36, the setting device 10 is removed from it and moved into a new setting position. This can be done by moving the setting device 10 or by moving the workpiece 36. Alternatively, both the setting device 10 and the workpiece 36 can be moved, or a new workpiece 36 can be brought into position. A new element 22 has already been moved into the starting position, which is also shown in Fig. 2 has already been shown.

[0032] Fig. 7This indicates a malfunction of the setting device 10. The first element 22 is still located within the area of ​​the guide device 28, for example because it has become jammed there, and is blocking the cavity 26 intended for guiding the element 22. The second element 22, which has already been brought into its starting position, would now be pressed against the first element 22 by the punch 24, which would very likely result in damage to the setting device 10, in particular to the guide device 28.

[0033] To detect this malfunction, a detection device is provided by means of which the presence of an element 22 in the cavity 26 can be detected. An embodiment of such a detection device is shown in Fig. 8 shown. It is integrated into the guide unit 28, whose components are in Fig. 9 shown in an exploded view.

[0034] The guide device 28 comprises four guide segments 30A, 30B, 30C, 30D (preferably made of metal), each forming a circumferential section of the cavity 26. They are separated from one another by insulating pins 40, which are arranged in slots 39 provided between adjacent guide segments 30A, 30B, 30C, 30D (see e.g. Fig. 3 , 10A, 10BThe insulating pins 40 can be made of an elastomer. They electrically insulate adjacent segments 30A, 30B, 30C, 30D and, due to their elastic properties, allow relative movement of the segments 30A, 30B, 30C, 30D. To generate the preload of the segments 30A, 30B, 30C, 30D described above, elastic rings 42A, 42B, 42C (e.g., O-rings) are provided. They lie in appropriately dimensioned grooves 44. The rings 42A, 42B, 42C preload the segments 30A, 30B, 30C, 30D radially inward against the elastic insulating pins 40. By inserting an element 22 into the cavity 26, the rings 42A, 42B, 42C are stretched. Ultimately, this generates a force acting radially on element 22, stabilizing the position of element 22.

[0035] As in Fig. 8As can be seen, the electrically conductive segments 30A and 30B are connected to electrical conductors 46A and 46B. These allow a voltage to be applied between elements 30A and 30B by means of a control device. If element 22 is electrically conductive, it short-circuits segments 30A and 30B as soon as it enters cavity 26, allowing a current to flow, which is detected by the control device. In principle, it is also possible to determine the presence of element 22 in an analogous manner via a resistance measurement or other electrical parameters.

[0036] During the Figures 8 and 9In the illustrated embodiment, four segments 30A, 30B, 30C, and 30D are provided, two of which (30A and 30B) function as electrical contacts. It is understood that the number of guide segments provided and the type of contacting (e.g., contact pairing) can be selected as required. Furthermore, it is possible not to use individual guide segments themselves as electrical contacts, but rather to provide only sections of one of the segments or several segments with electrical contacts.

[0037] An axial support of the guide device 28 or the segments 30A, 30B, 30C, 30D in a housing 18A of the plate 18 is provided by an electrically insulating support ring 45. Radial support can be provided by the rings 42A, 42C, since these partially protrude from the grooves 44 and thus extend radially beyond the segments 30A, 30B, 30C, 30D.

[0038] The Figures 10A to 10Dshow a further embodiment of the guide device 28, wherein Fig. 10A a perspective view and the Figs. 10B to 10D The diagram shows cross-sectional and longitudinal sections. The rings 42A, 42B, 42C and the insulating pins 40 are formed in one piece. They can also simply be connected to each other or be separate components (not according to the invention). According to a particularly simple embodiment, the aforementioned components are integrally formed with the segments 30A, 30B, 30C, 30D. Preferred materials from which the aforementioned components can be formed are elastically deformable plastics, in particular elastomers. For example, these are obtained by vulcanizing a thermoplastic natural rubber or a synthetic rubber.

[0039] Especially the Fig. 10A and 10DIt can be seen that the segments 30A, 30B, 30C, 30D are provided on their respective upper surfaces with recesses 48A or 48B, which enable axial fixation of the segments 30A, 30B, 30C, 30D, which will be explained in more detail below.

[0040] Fig. 11 Figure 1 shows an alternative embodiment of the guide device 28. Here, insulating pins 40 are provided, which extend axially between the rings 42A and 42C, but do not project beyond them in the axial direction. The slots 39 are therefore only partially filled. Unlike the illustration, these components can be formed in one piece. The ring 42B, which lies axially between the rings 42A and 42C, has a substantially square base shape and surrounds the insulating pins 40 from the outside to generate an additional preload.

[0041] Fig. 12 The guide system 28 shows the Fig. 11in a state mounted in the base plate 18. The conductors 46A and 46B are connected via a multi-pin connector 50 to a control unit (not shown). An electrical connection to the guide plate 14 is also made via the connector 50 (see conductor 46C). From above, the segments 30A, 30B, 30C, and 30D are fixed in the housing 18A of the base plate 18 by a fixing element 52 and a feed rail 54. The feed rail 54 forms part of the channel 20 (see Fig. 2 ).

[0042] Fig. 13Figure 1 shows a sectional view of the base plate 18. The axial fixation of the guide device 28 by the fixing element 52 and the feed rail 54 is visible. The fixing element 52 is made of insulating material and can therefore be in direct contact with segment 30A. It is screwed to the housing 18A by means of a screw 56. The feed rail 54, which plays a role in moving the element 22 into its starting position, is insulated from segment 30B by means of an insulating plate 58. The fixing element 52 and the feed rail 54 engage in the recesses 48A and 48B, respectively. Components 52 and 54 can be made of plastic.

[0043] The Figures 14A to 14D show a further embodiment of the guide device 28, wherein Fig. 14A a perspective view and the Figs. 14B to 14D Cross-sectional and longitudinal sections are shown. Instead of the insulating pins 40 of the embodiments according to the Fig. 8, 9 and 10A to 10DInsulating pins 40 with an approximately trapezoidal cross-section are arranged in the slots 39 between adjacent segments 30A, 30B, 30C, 30D, and have a substantially circular cross-section. The insulating pins 40 project radially outwards beyond the segments 30A, 30B, 30C, 30D, thus providing support for the guide device 28 within the housing 18A. In other words, the insulating pins 40 not only serve to electrically insulate the segments 30A, 30B, 30C, 30D from one another, but also provide radial support for them. The elastic properties of the insulating pins 40 ensure—with appropriate dimensioning of the radial projection—the desired preload on the segments 30A, 30B, 30C, 30D. The radial inner surfaces of the insulating pins 40 are set back from the inner surfaces of the segments 30A, 30B, 30C, 30D in order not to impede the movement of the element 22 through the cavity 26.The insulating pins 40 can be separate components or molded onto the segments 30A, 30B, 30C, 30D. They preferably consist of an elastomer.

[0044] The concept of creating a preloading device by means of radially outward-projecting elements with elastic properties can, in principle, also be implemented independently of the insulating pins 40. For example, it is possible—additionally or alternatively—to provide or mold elastic stop sections on the outer sides of segments 30A, 30B, 30C, 30D, which are supported in the housing 18A. Conversely, elastic contact sections projecting radially inward can also be provided on the housing 18A—additionally or alternatively—to serve as radial support for the guide device 28. The contact sections can be attached to or molded onto the guide device 28 and / or the housing 18A, or they can be separate components.

[0045] The Figures 15A to 15D show a further embodiment of the guide device 28, wherein Fig. 15A a perspective view and the Figs. 15B to 15D The cross-sectional and longitudinal sections are shown. Instead of segments 30A, 30B, 30C, 30D, segments 30A, 30B, 30C, 30C', 30C", 30D, 30D', 30D" are provided, with an insulating pin 40 arranged in a corresponding slot 39 between each of these segments. This demonstrates that, in principle, any number of guide segments can be provided to best meet the specific requirements. The same applies to the number and design of the insulating pins. They can completely or partially fill the gaps between the guide segments and can, in principle, have any design (e.g., cross-sectional geometry) to suit the requirements.

[0046] Fig. 16Figure 1 shows an embodiment of the guide device 28 in which segment 30B (as in the embodiments described above) is directly connected to a conductor 46B. When an element 22 is inserted into the cavity 26, it pushes segments 30A and 30B apart against the preload generated by the rings 42. This brings a contact point 59A, provided on segment 30A, into contact with a contact point 59B, provided on the housing 18A. The housing 18A is, in turn, connected to the conductor 46A. In this case as well, the element 22 closes a circuit, but a minimum relative movement of segments 30A and 30B, defined by a distance between the contact points 59A and 59B in a ground state, is required to ultimately close the circuit.

[0047] Fig. 17Figure 1 shows a detection device in which segment 30A has a plurality of detector elements 60 – for example, contact surfaces – which are connected to each other in pairs. If element 22 is in a position where the two contact surfaces 60 of a connected pair are in contact with it, a circuit is closed again, which allows the position of element 22 in the cavity 26 to be determined. Fig. 17 This situation is illustrated by example by the position of element 22, which short-circuits the two uppermost detector elements 60.

[0048] Instead of the contact surfaces 60, other sensors and / or signal sources can also be provided, which do not necessarily have to be functionally coupled in pairs. For example, sound sources and sound sensors can be provided that detect a reflection of sound waves at the element 22. The detector elements 60 can also be motion or vibration sensors to detect changes in the vibration pattern or the natural frequency of the guide device 28 or the base plate 18 (the elements 60 – or at least one element 60 – can then also be mounted inside or outside the housing 18A) caused by the presence / location / position of an element 22 in the cavity. The detector elements 60 can also be optical or magnetic sensors, pressure sensors, or sensors of other types (e.g., embedded measuring coils).

[0049] Fig. 18Figure 1 shows another embodiment of the guide device 28. Here, detector elements 60 are provided on both segment 30A and segment 30B. These can, for example, be coupled to each other in such a way that opposing detector elements 60 form a pair that serves to generate a signal (e.g., a contact surface pair or a transmitter-receiver pair). However, it is also possible to control and / or monitor the individual elements 60 individually or in groups in order to obtain a more precise picture of the position of element 22 and / or its orientation in space. Fig. 18 An example of a tilted element 22 was shown, which, due to its position, is in contact with two detector elements / contact surfaces 60 that are not opposite each other, thus closing a circuit between these elements 60, which is recognized by the control device and interpreted as a malfunction.

[0050] Fig. 19shows a top view of a guide segment 30A with several detector elements 60, which are arranged not only in the axial direction (cf. setting direction S) but also in the circumferential direction.

[0051] Based on the Figs. 17 to 19 It becomes clear that the number, arrangement, and functional grouping of detector elements 60 can be selected entirely according to requirements (especially with regard to the desired spatial resolution of element detection). The type of detector elements used (including electrical measurement – ​​e.g., voltage, current, resistance – measurement of acoustic signals, measurement of vibrations and / or movements and / or distances, measurement of optical signals, measurement of mechanical parameters – e.g., pressure and / or tension) is also fundamentally freely selectable. Different detector types can also be combined to create a detection system suitable for the respective application.

[0052] Fig. 20Figure 1 shows an embodiment of a detection device based on measuring a change in distance between segments 30A and 30B. For this purpose, a connecting element 61, serving as a measuring device, is provided that bridges the slot 39 and connects the two segments 30A and 30B. This connecting element can be, for example, an electrical conductor whose electrical properties are affected by a change in length, or a strain gauge.

[0053] It is also possible, additionally or alternatively, to detect and evaluate changes in the distance between segments 30A, 30B and the housing 18A. For this purpose, distance sensors 62 (e.g., capacitive sensors) are provided, which are installed in Fig. 21 shown. In addition to or as an alternative to the distance sensors 62, strain gauges or piezoelectric sensors can also be provided.

[0054] Fig. 22Figure 1 shows a detection device based on measuring the pressure in the area of ​​the guide device 28. For this purpose, compressed air is introduced into the cavity 26 (see arrow D). The resulting pressure is measured at one or more points in the housing 18A, in particular in or adjacent to the cavity 26, using appropriate pressure sensors 64. The pressure at the one or more measuring points depends, among other things, on whether and, if so, where an element 22 is located in the cavity 26. Reference symbol list

[0055] 10 Setting device 12 Guide housing 14 Guide plate 16 Sensor 18 Base plate 20 Feed channel 22 Fastening element 24 Plunger or punch 26 Cavity 28 Guide device 30A, 30B, 30C, 30C', 30C", 30D, 30D', 30D" Guide segment 32H, 32S Longitudinal axis 34 Circumferential surface 36 Workpiece 38 Rivet section 39 Slot 40 Insulating pin 42, 42A, 42B, 42C Ring 44 Groove 45 Support ring 46A, 46B Conductor 48A, 48B Recess 50 Plug 52 Fixing element 54 Feed rail 56 Screw 58 Insulating plate 59A, 59B Contact point 60 Detector element 61 Connecting element 62 Distance sensor 64 Pressure sensor SSetting device D Compressed air

Claims

1. A setting device (10) for fastening an element (22) to a workpiece (36), the setting device (10) comprising a guide device (28), which can be brought into mechanical contact with the element (22) and which has an axial hollow space (26) for guiding the element (22), and an axially movable ram (24) for moving the element (22) through the hollow space (26) of the guide device (28), wherein the guide device (28) has at least one first and one second guide element (30A, 30B, 30C, 30C', 30C", 30D, 30D', 30D"), wherein the guide elements (30A, 30B, 30C, 30C', 30C", 30D, 30D', 30D") bound the axial hollow space (26) and are preloaded by means of a preloading device by a preloading force acting radially inwardly on at least one guide element, in particular all of the guide elements (30A, 30B, 30C, 30C', 30C", 30D, 30D', 30D"), and wherein the preloading device comprises at least one elastic preloading element (42, 42A, 42B, 42C) which generates the preloading force and which is at least partly produced from an elastomer, wherein guide elements (30A, 30B, 30C, 30C', 30C", 30D, 30D', 30D") which are adjacent in the peripheral direction are separated from one another by at least one interval, in particular by a slit (39), wherein a respective at least one insulation element (40) is arranged in the interval, wherein the preloading element (42, 42A, 42B, 42C) and the insulation element are formed in one piece, wherein the preloading element (42, 42A, 42B, 42C) is an annular element which is closed in the peripheral direction and which surrounds the guide elements (30A, 30B, 30C, 30C', 30C", 30D, 30D', 30D") at their radial outer side in the peripheral direction, characterized in that the geometry of the preloading element is substantially constant in the peripheral direction of the preloading element.

2. A setting device (10) according to claim 1, characterized in that the geometry of the insulation element is substantially constant in the longitudinal direction of the insulation element.

3. A setting device (10) according to at least one of the preceding claims, characterized in that the insulation element (40) comprises or is completely produced from an electrically insulating and / or elastic material.

4. A setting device (10) according to at least one of the preceding claims, characterized in that the preloading element (42, 42A, 42B, 42C) has a contact section which is arranged at, in particular fastened or molded to, the guide device (28) and which projects in at least one section of the guide device (28) in the radial direction beyond an outer contour of the guide elements (30A, 30B, 30C, 30C', 30C", 30D, 30D', 30D"), with the contact section forming at least one support point for the radial support of the guide device (28).

5. A setting device (10) according to at least one of the preceding claims, characterized in that the preloading element (42, 42A, 42B, 42C) has a contact section which is arranged at, in particular fastened or molded to, a component of the setting device (10) at least partly receiving the guide device (28), in particular at or to a housing section, with the contact section projecting radially inwardly and forming at least one support point for the radial support of the guide device (28).

6. A setting device (10) according to at least one of the preceding claims, characterized in that the preloading element (42, 42A, 42B, 42C) is a separate component having a contact section which is arranged in the radial direction between the guide device (28) and a component of the setting device (10) at least partly receiving the guide device (28), in particular a housing section, with the contact section forming at least one support point for the radial support of the guide device (28).

7. A setting device (10) according to at least one of the preceding claims, characterized in that the contact section is arranged at a radial outer side of one of the guide elements (30A, 30B, 30C, 30C', 30C", 30D, 30D', 30D").

8. A setting device (10) according to at least one of the preceding claims, characterized in that a plurality of contact sections are provided which are arranged distributed, in particular symmetrically distributed, in the peripheral direction of the guide device (28) and / or in the peripheral direction of a component of the setting device (10) at least partly receiving the guide device (28), in particular with the contact sections being formed separately from one another.

9. A setting device (10) according to at least one of the preceding claims, characterized in that the insulation element (40) substantially completely fills the interval (39).

10. A setting device (10) according to at least one of the preceding claims, characterized in that the insulation element (40) comprises an elastomer.

11. A setting device (10) according to at least one of the preceding claims, characterized in that the insulation element (40) has a circular, oval, trapezoid or wedge-shaped cross-section.

12. A setting device (10) according to at least one of the preceding claims, characterized in that the preloading element (42, 42A, 42B, 42C) and / or the insulation element (40) comprises / comprise a vulcanized elastomer plastic.

13. A setting device (10) according to at least one of the preceding claims, characterized in that the preloading element (42, 42A, 42B, 42C) and / or the insulation element (40) is / are at least partly molded to the guide device (28), in particular to at least one of the guide elements (30A, 30B, 30C, 30C', 30C", 30D, 30D', 30D").