Magnetic guiding device

Abstract

The present invention relates to a magnetic guiding device (1) having a stator (2) and a slider (3) that is movable relative to the stator (2) along a guiding direction (Z), wherein the stator (2) and the slider (3) are magnetized or can be magnetized such that a magnetic field (M) extending through the stator (2) and the slider (3) generates a magnetic supporting force (U) acting on the slider (3) along the guiding direction (Z). In order to improve the running characteristics of the slider (3) by avoiding differential sliding, jerking, and variable friction, according to the present invention, the magnetic field (M) extending through the stator (2) and the slider (3) simultaneously generates a magnetic pre-tensioning force (F) that urges the slider (3) and the stator (2) against each other.

Description

Field of the Invention

[0001] The invention relates to a magnetic guiding device having a stator and a slider movable relative to the stator along a guiding direction, the stator and the slider being magnetized or magnetizable such that a magnetic field extending through the stator and the slider generates a magnetic supporting force on the slider along the guiding direction. Background Art

[0002] A device for generating a magnetic supporting force is known from US2004 / 0004405A1. It can be combined with a linear drive to completely or substantially compensate for the load moved by the linear drive, for example when the linear drive is arranged vertically, such that the linear drive is relieved and basically only has to be designed taking into account the dynamic load caused by the moving load. FIGS. 19 and the corresponding description part of US2004 / 0004405A1 disclose a linear drive to which the magnetic supporting force device is coupled, wherein the moving part is guided in the stator. A guiding device suitable for guiding can be realized, for example, via a profile guide rail.

[0003] However, without any additional measures, differential sliding, jerking and variable friction occur in profile guide rails or similarly designed guiding devices, which deteriorate the running characteristics of the moving part relative to the stator. The jerking of the guide can in particular cause jamming of these moving parts and ultimately lead to increased effort due to rework, which is caused by the poor controllability of the position. Summary of the Invention

[0004] It is an object of the invention to provide a magnetic guiding device which provides a magnetic supporting force along the guiding direction while providing improved running characteristics of the slider relative to the stator by avoiding differential sliding, jerking and variable friction.

[0005] To achieve this object, the invention provides a magnetic guiding device.

[0006] The object is likewise achieved by additionally generating a magnetic pre-tensioning force urging the slider and the stator against each other by extending the magnetic field through the stator and the slider. Thereby, a corresponding pressure is exerted between the slider and the stator, such that differential sliding, jerking and variable friction can be avoided, and the slider can be guided at the stator with improved operating characteristics. By the magnetic guiding device according to the invention, compared to a guiding device with mechanical pre-tensioning of the slider (for example, an anti-bending spring arrangement), no additional higher-order resonances or dynamics are introduced into the system (the guide, the drive), resulting in advantages for position control. Furthermore, for longer strokes, there is an advantage in terms of installation space compared to a guiding device with mechanical pre-tensioning of the slider. The magnetic guiding device according to the invention thus forms a magnetic arrangement for simultaneously generating a preferably constant supporting force and a lateral pre-tensioning force in the running direction, in particular for a monorail guiding system, in order to improve the operating characteristics of the slider. However, the lateral pre-tensioning force not only provides advantages for a monorail guiding system, but also, for example, for guiding devices implemented as air bearings, since thereby it is not necessary to provide a vacuum cumbersome to generate the pre-tensioning force.

[0007] The invention has also been advantageously further developed.

[0008] It can be beneficial that the magnetic field extending through the stator is formed by one or more permanent magnets, and the magnetic supporting force is generated only by the magnetic field formed by one or more permanent magnets.

[0009] It can be advantageous that the stator and / or the slider are implemented to be at least partially magnetic and, additionally optionally, magnetically conductive. In this embodiment, few or no external devices for generating the magnetic field are required.

[0010] However, it can also be beneficial that the supporting force and / or the pre-tensioning force is / are constant along the guiding direction across a region defining the travel range of the slider. Thus, a particularly uniform and jerk-free movement can be achieved along the travel range. This simultaneously results in simpler controllability of the drive coupled to the guiding device and increased positioning accuracy. The two limits of the travel range of the slider are caused by positions along the guiding direction in which the overlap between the stator and the slider is respectively minimal or maximal (cf. Figure 1a ).

[0011] However, it can prove helpful that the supporting force varies along the guiding direction during the movement of the slider relative to the stator, preferably constantly, preferably linearly. Thus, it can be envisaged that the supporting force decreases during the movement of the slider relative to the stator in the guiding direction and increases during the movement of the slider relative to the stator away from the guiding direction. Preferably, the supporting force increases as the stator and the slider gradually overlap (cf. Figure 4 ).

[0012] Advantageously, the cross-sectional shape of the stator varies in a cutting plane oriented perpendicular to the guiding direction, in particular across the travel range, and / or in the distance between the slider and the stator.

[0013] However, it can also prove useful that the slider can move in the opposite direction along the guiding direction. In such an embodiment, the slider can be positioned bidirectionally between the two ends of the guiding distance and can move repeatedly along the guiding distance. The supporting force preferably acts on the slider in an accelerating manner in the guiding direction (e.g., in the +Z direction) and in a delaying manner away from the guiding direction (e.g., in the -Z direction).

[0014] It can be beneficial that the stator has a guiding profile for guiding the slider along the guiding direction, wherein, in addition to the movement along the guiding direction, the guiding profile preferably blocks all degrees of freedom of movement of the slider. Preferably, the slider is positively clamped on the stator in a cutting plane oriented perpendicular to the guiding direction, just as, for example, a maglev train track system is positively clamped on the track.

[0015] It can also be feasible that the guiding direction extends along a straight line or along a circular path. In the first case, the guiding device serves as a linear guide, for example, and in the second case, as a rotary guide or a rotational guide. With these embodiments, the guiding device according to the invention has a wide range of application fields. In the field of ball bearings subjected to torque, a rotary guide or a rotational guide can be particularly advantageously employed.

[0016] It has been proven useful that the magnetic pre-tension force acts at least partially or completely in the direction of the gravity of the slider. In this embodiment, the magnetic field has the opposite effect compared to a maglev train track system, because instead of reducing or eliminating the gravity of the slider on the stator as in a maglev train track system, it increases the force effect between the slider and the stator in addition to the gravity of the slider. In this embodiment, a particularly good improvement in the operating characteristics of the slider is achieved. Although the pre-tension force between the slider and the stator can basically also be increased by a larger mass of the slider, this measure is considered disadvantageous because a larger mass of the slider results in a higher total weight of the guiding device, deteriorated dynamics, and ultimately higher costs. In addition, increasing the pre-tension force by mass is only applicable to horizontal movement and not to vertical movement, because in this case, the gravity acts parallel to the guiding direction and not perpendicular to the guiding direction; therefore, a higher total weight does not result in a higher contact pressure between the slider and the stator during vertical movement. With the solution according to the present invention, there is no friction support for the compensating force (e.g., like in the bending spring arrangement of a helical tension spring), which results in an advantage in terms of positioning control compared to a friction system.

[0017] Here, it can be beneficial that the stator and the slider together form a substantially closed-loop profile within the travel range when they overlap with each other, and the magnetic field is guided within the substantially closed-loop profile, where the substantially closed-loop profile preferably exists in a plane perpendicular to the guiding direction, and the profile axis of the substantially closed-loop profile preferably extends along or parallel to the guiding direction. With this design, it is particularly easy to generate high magnetic forces in the guiding direction and perpendicular to the guiding direction.

[0018] It has been proven feasible that the stator or the slider has an open-loop profile with a gap, and the corresponding other element in the stator and the slider bridges the gap to together form the substantially closed-loop profile. With this design, the slider and the stator can be magnetically coupled in a particularly effective and space-saving manner. A profile that extends along a closed line is called a loop profile. This closed line can be, for example, polygonal, rectangular, circular, elliptical, or annular. If the corresponding other element in the stator and the slider significantly reduces the gap formed by the stator or the slider, the loop profile can be called approximately closed, and the two elements are arranged along the closed line. In particular, if the two elements are (more strongly) magnetically coupled by bridging the gap in this arrangement. In this case, even if there is no contact between the slider and the stator, there is a bridging of the gap in the sense of the present invention because the slider and the stator are movable relative to each other and must remain movable relative to each other.

[0019] However, it is also advantageous for the stator or the slide to have a C-shaped profile or a U-shaped profile as an open-loop profile, wherein the respective other element in the stator and the slide supplements the C-shaped profile or the U-shaped profile to an O-shaped profile as a substantially closed-loop profile. Here, the cross-sectional profile perpendicular to the guiding direction is referred to as the profile. Such a basic profile can be obtained at low cost and can be coupled to the loop profile in a simple manner.

[0020] It has proven useful for the magnetic poles of the stator and / or the slide to be oriented in the same direction or in opposite directions along the magnetic flux lines of the magnetic field extending through the stator and the slide. In this design, the magnetic force acting between the stator and the slide is enhanced in a simple manner. If the magnetic poles of the stator and / or the slide point in opposite directions along the magnetic flux lines of the magnetic field extending through the stator and the slide, the directions of the pre-tensioning force and the supporting force are opposite.

[0021] It is also suitable for the stator and / or the slide to consist of at least one permanent magnet and / or at least one magnetically permeable element, wherein the permanent magnet and / or the magnetically permeable element preferably have a constant cross-sectional shape along the guiding direction, and wherein the permanent magnet and / or the magnetically permeable element preferably have a polygonal, rectangular, in particular cubic cross-sectional shape. Here, the cross-sectional profile perpendicular to the guiding direction is referred to as the profile. A cross-sectional shape with outer or inner angles of 90° or 270° is referred to as a polygonal rectangle.

[0022] It can also be advantageous for the slide to be adjustable relative to the stator in a plane perpendicular to the guiding direction, preferably along and / or perpendicular to the magnetic flux lines of the magnetic field extending through the stator and the slide, preferably such that the compensation force and / or the pre-tensioning force can be adjusted by adjusting the distance between the stator and the slide. In this design, the guiding device according to the invention can be purposefully configured for certain applications. In addition, by adjusting the relative positions of the slide and the stator, working tolerances can be compensated particularly easily.

[0023] However, it can also be beneficial for the guiding device to be implemented as a linear guide or a rotary guide or a swivel guide. With these designs, the invention offers a wide range of application areas.

[0024] Terms and Definitions

[0025] Supporting Force

[0026] Within the scope of the present invention, the term supporting force denotes the force acting on the slide, which particularly enhances, reduces, compensates or even overcompensates other forces acting on the slide along the guiding direction. However, the supporting force can also act on the slide without a force relative to the guiding direction, for example in a horizontally oriented magnetic guiding device, for example in order to achieve higher dynamics in one direction or to force movement to a certain end position in the event of a main line failure. Description of the Drawings

[0027] In the drawings:

[0028] FIG. 1 schematically shows the construction of a magnetic guide device according to the invention, which is embodied as a linear guide. On the one hand, different positions at both ends of the travel range are shown in a side view a), and on the other hand, the construction perpendicular to the guide direction is shown in a sectional view b).

[0029] Figure 2 Other embodiments of a guide device according to the invention having various constructions of a slider and a stator are shown in schematic sectional views a) to h).

[0030] Figure 3 A sectional view of the guide device is shown in view a), and a perspective view thereof is shown in view b). The guide device is embodied as a rotary guide or a swivel guide according to the invention, which can be used, for example, for pre-tensioning and generating a constant torque of a ball bearing.

[0031] Figure 4 Different embodiments of the guide device according to the invention are schematically shown in a), b) and c), wherein the support force U varies within the travel range. In embodiments a) and b), the sectional view in the plane perpendicular to the guide direction is represented in the left half of the image, and the side view is represented in the right half of the image. In embodiment c), the sectional view in the plane perpendicular to the guide direction is represented in the left half of the image, and the top view is represented in the right half of the image. Detailed Description of the Invention

[0032] Preferred embodiments of the present invention will be described in detail below with reference to the drawings.

[0033] FIG. 1 shows an embodiment according to the invention of a magnetic guide device 1 in view a) from one side observing the Y-Z plane, which is embodied as a linear guide, and shows a section of the guide device 1 in the X-Y plane in the drawn coordinate system in view b).

[0034] The guide device 1 shown in FIG. 1 includes a stator 2 and a slider 3. The slider 3 is capable of moving relative to the stator 2 along (i.e., in the direction of and away from) the guide direction Z. The guide direction of the guide device 1 extends in the +Z direction in the drawn coordinate system. Figure 1bThe cross-section in ) extends perpendicular to the guiding direction in the X-Y plane. The stator 2 and the slider 3 are magnetized or can be magnetized such that the magnetic field M extending through the stator 2 and the slider 3 generates a magnetic supporting force U acting on the slider 3 in the guiding direction. In the present embodiment, for example, only the stator 2 includes permanent magnets. The slider can be implemented as ferromagnetic, for example as an iron component, to increase the magnetic force, but it can also be implemented as a permanent magnet. According to the invention, the magnetic field M extending through the stator 2 and the slider 3 generates a magnetic pre-tensioning force F that urges the slider 3 and the stator 2 to abut against each other. The supporting force U acts against the forces acting on the slider 3 (such as spring force or gravity in a vertically arranged situation). In certain application cases, it can also be advantageous that the supporting force U completely compensates the forces acting on the slider 3, which refers to, for example, spring force or gravity, and thus maintains the slider 3 in a force balance. In this example, the supporting force U acts in the +Z direction, that is, in the guiding direction. In the present exemplary embodiment, the pre-tensioning force F acts in the -Y direction.

[0035] The stator 2 is symmetrically and partially magnetically implemented in the cross-section in the X-Y plane. The stator 2 has a profile guide 2c, and the corresponding guiding bracket 3c of the slider 3 is movably mounted on the profile guide 2c along the guiding direction Z. With the guiding bracket 3c, the slider 3 is guided along the guiding direction, while all other possible degrees of freedom of the movement of the slider 3 are blocked. As shown schematically in the cross-sectional view according to Figure 1b ), on each side of the profile guide 2c, permanent magnets 2a having a rectangular cross-section are arranged in a ferromagnetic element 2b of iron having a C-shaped cross-sectional profile. The two legs of the C-shaped profile face away from the profile guide 2c. The permanent magnets 2a are each arranged on the lower leg of the C-shaped profile. The ferromagnetic element 2b contacts the base 2d that supports the profile guide 2c. The magnetic north pole N of the permanent magnet 2a is oriented in the +Y direction, while the magnetic south pole faces the -Y direction. The ferromagnetic element 2b having a C-shaped cross-section thus supports the permanent magnet 2a at the inner lower leg to form an open-loop profile together with the permanent magnet 2a, and this open-loop profile has a gap reserved between the magnetic north pole N and the inner upper leg of the ferromagnetic element 2b.

[0036] The slider 3 is implemented as at least partially ferromagnetic, and in this example includes a platform 3b guided on the profile guide 2c together with the guiding bracket 3c and two L-shaped ferromagnetic legs 3a laterally arranged in the cross-section in the X-Y plane. The legs 3a clamp the stator 2 transversely to the guiding direction and each penetrate through the corresponding gap between the permanent magnet 2a of the stator 2 and the inner upper leg of the ferromagnetic element 2b in a manner that the ends face each other. The ends of the legs 3a facing each other magnetically bridge the gap and complete the open-loop profile of the stator 2 into a substantially closed-loop profile, and the magnetic field M extends within this substantially closed-loop profile, as schematically shown by a dotted line in Figure 1b ).

[0037] The pre-tensioning force F is not constant along the guiding direction Z over the entire travel range S of the slider 3 in this embodiment, but varies in response to the position of the slider 3 relative to the stator 2, where the pre-tensioning force F increases as the overlap between the slider 3 and the stator 2 increases and decreases as the overlap between the slider 3 and the stator 2 decreases. However, at each position of the travel range S, i.e., at each position of the mutual overlap of the stator and the slider, it is ensured that the pre-tensioning force F exceeds a certain minimum value. However, the supporting force U is constant along the guiding direction Z over the entire travel range S of the slider 3.

[0038] The legs 3a of the slider 3 are adjustably fixed to the platform 3b of the slider 3 in the Y-direction and / or the X-direction in this example. Thereby, the slider 3 can be adjusted relative to the stator 2 in two perpendicular directions in the X-Y plane perpendicular to the guiding direction, both in the + / −Y direction and in the + / −X direction (insertion direction) perpendicular thereto along the magnetic flux lines of the magnetic field M extending through the stator 2 and the slider 3, such that both the supporting force U and the pre-tensioning force F can be adjusted by adjusting the distance between the stator 2 and the slider 3. It is conceivable that, instead of the legs 3a of the slider 3, the magnetic element 2b is fixed to the base 2d to be adjustable in the Y-direction and / or in the X-direction, thereby achieving the adjustability of the supporting force U and the pre-tensioning force F. Finally, it is conceivable that both the legs 3a of the slider 3 and the magnetic element 2b are arranged to be adjustable in the Y-direction and / or in the X-direction. Of course, the magnetic characteristics of the slider 3 and the stator 2 can be exchanged, which means that the magnetic circuit can be fixed to the slider 3 instead of, or additionally to, the stator 2.

[0039] Principle of operation

[0040] The legs 3a of the slider 3 are pulled towards the respective permanent magnets 2a of the stator 2 by the magnetic force passing through the slider 3 and the stator 2. This attractive force generates the pre-tensioning force F, and the platform 3b and the guiding bracket 3c of the slider 3 are pressed against the profile guide 2c of the stator 2 by the pre-tensioning force F.

[0041] Within the travel range S, there is a constant supporting force U in the travel direction because the slider 3 is pulled into this arrangement by the magnetic force, similar to that disclosed in US2004 / 0004405A1.

[0042] By the relative positioning of the slider 3 with respect to the stator 2 or its magnetically active parts (such as the permanent magnets 2a and the magnetically conductive C-shaped profile 2b), the pretensioning force F acting in the direction of the stator 2 and the supporting force U acting in the guiding direction Z are adjustable. The pretensioning force F is mainly set by approaching the slider 3 to the permanent magnets 2a of the stator 2 in the + / -Y direction. The supporting force U is mainly set via the penetration depth of the slider 3 into the gap formed by the permanent magnets 2a and the magnetically conductive element 2b of the stator 2 in the + / -X direction.

[0043] Figure 2 The schematic sectional views a) to h) show further embodiments of the guide device 1 according to the invention, which are based on the embodiment according to FIG. 1 , but have a differently designed stator 2 and slide 3 . Figure 2 Only the magnetically active parts of the stator 2 and the slide 3 are shown in a simplified manner. It is self-evident that the stator 2 and / or the slide 3 can have further parts in addition to the parts shown in views a) to h). Figure 2 In the following views a) to h) of the present invention, the reference symbol Fe denotes a magnetically conductive ferromagnetic or paramagnetic element, such as iron, and the symbols N and S denote the magnetic poles of the permanent magnets (N denotes the north pole and S denotes the south pole). The cross sections shown in views a) to h) all extend perpendicular to the guide direction or in the XY plane in the overlapping area of ​​the stator 2 and the slider 3 (i.e., in the travel range S). Preferably, all contours have a constant cross-sectional shape along the guide direction.

[0044] In accordance with Figure 2 In the embodiment of a, the stator 2 comprises two magnetically conductive ferromagnetic or paramagnetic elements Fe, preferably of the same and rectangular cross-section, between which a permanent magnet N / S is arranged to form a C-shaped open ring profile with a gap. The opening between the legs of the C-shaped profile is located on the left in view a). The permanent magnet N / S has a height higher than any magnetically conductive element of the stator 2 and preferably has a width less than half. A ferromagnetic or paramagnetic slider 3 (which also has a rectangular cross-section) is located in the gap between the legs of the C-shaped stator 2 to bridge the gap and complete the open C-shaped ring profile of the stator 2 into a substantially closed ring profile. The generated magnetic field M is symbolically represented here by a dotted line. Optionally, the slider 3 can be adjusted relative to the stator 2 in the XY plane, preferably along and perpendicular to the magnetic flux lines of the magnetic field M extending through the stator 2 and the slider 3, so that the support force U and the pretensioning force F can be adjusted by adjusting the distance between the stator 2 and the slider 3.

[0045] According to Figure 2 Compared with the design of a, Figure 2In the embodiment of b, the sliding member 3 is implemented as a permanent magnet having a rectangular cross-section. The magnetic poles N / S of the stator 2 and the sliding member 3 are adjusted along the magnetic flux lines of the magnetic field M extending through the stator 2 and the sliding member 3. Other features of this design correspond to those according to Figure 2 the design of a.

[0046] Compared with the design according to Figure 2 b, in the design according to Figure 2 c, the stator 2 is implemented as an integrally formed C-shaped profile made of a ferromagnetic or paramagnetic material with magnetic permeability. Only the sliding member 3 includes a permanent magnet. Other features of this design correspond to those according to Figure 2 the design of b.

[0047] In the design according to Figure 2 d, the stator 2 consists of two permanent magnets having a rectangular cross-section and a magnetic conduction element made of a ferromagnetic or paramagnetic material (e.g., iron) with a C-shaped or rectangular cross-section. These magnetized or magnetic conduction components together form a C-shaped profile with an opening on the upper side. The sliding member 3 having a rectangular cross-section and implemented as a magnetic conduction element bridges the gap formed between the legs of the stator 2 on the front side to form a substantially closed loop profile.

[0048] In the design according to Figure 2 e, the stator 2 consists of two magnetic conduction elements having a rectangular cross-section and a permanent magnet having a rectangular or square cross-section. The north pole N and the south pole S of the permanent magnet face different sides or magnetic conduction elements. These magnetized or magnetic conduction elements together form a C-shaped profile with an opening on the upper side. The sliding member 3 implemented as magnetic conduction and having a rectangular cross-section is located in the gap formed between the legs of the stator 2 to complete the open-loop profile of the stator 2 into a substantially closed loop profile.

[0049] In the design according to Figure 2 f, the stator 2 includes a magnetic conduction C-shaped profile made of a ferromagnetic or paramagnetic material, with an opening on the right side. A permanent magnet having a rectangular cross-section is positioned such that its magnetic north pole N abuts the inner side of the upper leg of the C-shaped profile, while the magnetic south pole S of another permanent magnet having a rectangular cross-section contacts the inner side of the lower leg of the C-shaped profile. The sliding member 3 implemented as a ferromagnetic or paramagnetic element with magnetic conduction and having a rectangular cross-section is positioned in the gap formed between the permanent magnets of the stator 2 to complete the open-loop profile of the stator 2 into a substantially closed loop profile.

[0050] Compared with the design according to Figure 2 f, in the design according to Figure 2 g, the sliding member 3 itself is implemented as a permanent magnet, wherein the magnetic poles N / S of the stator 2 and the sliding member 3 are adjusted along the magnetic flux lines of the magnetic field M extending through the stator 2 and the sliding member 3. Other features of this design correspond to those according to Figure 2 the design of f.

[0051] Compared with the design according toFigure 2 compared with the design of e, according to Figure 2 in the design of h, the sliding member 3 is not located between the legs of the C-shaped profile, but instead bridges the gap formed between the legs of the stator 2 on the front side, similar to according to Figure 2 the design of d, to form a substantially closed-loop profile. Other features of this design correspond to the design according to Figure 2 the design of e or the design according to 2d.

[0052] Figure 2 The designs shown in are given by way of example only and should not be construed as limiting. It goes without saying that other embodiments can be implemented within the scope of the present invention.

[0053] In accordance with Figure 3 the embodiment of, the guiding device according to the present invention is part of a rotary actuator, wherein the guiding direction extends along a circular path. This design is advantageous, for example, for pre-tensioning a ball bearing while generating a constant torque.

[0054] It will be understood that an inversion of the guiding device (wherein the above-mentioned stator acts as a rotor and the above-mentioned rotor acts as a stator) is within the scope of professional activities in the context of the teachings according to the present invention.

[0055] Figure 4 Three different embodiments a), b) and c) are shown, in which the support force U varies within the travel range. In these three embodiments, the cross-sectional shape of the stator 2 in the cutting plane is not constant along the guiding direction Z, especially within the travel range, the cutting plane being oriented perpendicular to the guiding direction Z, and / or the distance between the sliding member 3 and the stator 2 is not constant. Thereby, depending on the position of the sliding member 3 relative to the stator 2 along the travel range, different amounts of support force U are applied to the sliding member 3. Of course, this also has an impact on the pre-tensioning force F. However, the pre-tensioning force F also depends especially on the overlap of the sliding member 3 and the stator 2 and is thus not constant in any case.

[0056] In Figure 4 the shown embodiments a) and c), the support force U changes as the sliding member 3 is inserted into the stator 2, for example because the magnetic cross-sectional area of the stator 2 and / or the distance between the sliding member 3 and the stator 2 changes at least in some regions along the guiding direction Z.

[0057] In Figure 4 the shown embodiment b), the support force U first decreases within the travel range and then increases again.

[0058] With this design, the support force U applied to the sliding member 3 can be selectively adapted to the respective application case.

[0059] Of course, Figure 4The principle shown can be transferred to Figure 2 all the stator profiles shown.

[0060] List of reference signs

[0061] 1 Guide device

[0062] 2 Stator

[0063] 2a Permanent magnet

[0064] 2b Magnetic conductive element

[0065] 2c Profile guide rail

[0066] 2d Base

[0067] 3 Slide

[0068] 3a Leg

[0069] 3b Platform

[0070] 3c Guide bracket

[0071] X - Y Plane perpendicular to the guide direction

[0072] Z Guide direction

[0073] U Support force

[0074] M Magnetic field

[0075] S Travel range

[0076] F Pretension force

Claims

1. A magnetic guiding device (1) having a stator (2) and a slider (3) movable relative to the stator (2) along a guiding direction, wherein the stator (2) and the slider (3) are magnetized or can be magnetized such that a magnetic field extending through the stator (2) and the slider (3) generates a magnetic supporting force acting on the slider (3) along the guiding direction, and wherein the magnetic field extending through the stator (2) and the slider (3) simultaneously generates a magnetic pre-tensioning force urging the slider (3) and the stator (2) against each other. Wherein, the magnetic field extending through the stator is formed by one or more permanent magnets, and the magnetic supporting force is generated only by the magnetic field formed by one or more permanent magnets.

2. The magnetic guiding device (1) according to claim 1, characterized in that the stator (2) and / or the slider (3) is / are implemented to be at least partially magnetic.

3. The magnetic guiding device (1) according to claim 2, characterized in that the stator (2) and / or the slider (3) is / are implemented to be magnetically conductive.

4. The magnetic guiding device (1) according to claim 1, characterized in that across the entire travel range of the slider (3), the supporting force is constant along the guiding direction.

5. The magnetic guiding device (1) according to claim 1, characterized in that the supporting force varies uniformly during the movement of the slider (3) relative to the stator (2) along the guiding direction.

6. The magnetic guiding device (1) according to claim 1, characterized in that the slider (3) is movable along the guiding direction in opposite directions.

7. The magnetic guiding device (1) according to claim 1, characterized in that the stator (2) has a guiding profile for guiding the slider (3) along the guiding direction, wherein in addition to the movement along the guiding direction, the guiding profile blocks all degrees of freedom of movement of the slider (3).

8. The magnetic guiding device (1) according to claim 1, characterized in that the guiding direction extends along a straight line or along a circular path.

9. The magnetic guiding device (1) according to claim 1, characterized in that the magnetic pre-tensioning force acts at least partially or completely in the direction of the gravity of the slider (3).

10. The magnetic guiding device (1) according to claim 1, characterized in that the stator (2) and the slider (3) together form a closed-loop profile when they overlap, and the magnetic field is guided within the closed-loop profile, wherein the closed-loop profile lies in a plane perpendicular to the guiding direction.

11. The magnetic guiding device (1) according to claim 10, characterized in that the stator (2) or the slider (3) has an open-loop profile with a gap, wherein the corresponding other element of the stator (2) and the slider (3) bridges the gap to together form the closed-loop profile.

12. The magnetic guiding device (1) according to claim 9, 10 or 11, characterized in that, the stator (2) or the slider (3) has a C-shaped profile or a U-shaped profile as an open-loop profile, wherein the corresponding other element of the stator (2) and the slider (3) supplements the C-shaped profile or the U-shaped profile into an O-shaped profile as a closed-loop profile.

13. The magnetic guiding device (1) according to claim 1, characterized in that, the magnetic poles of the stator (2) and / or the slider (3) are oriented in the same direction or in opposite directions along the magnetic flux lines of the magnetic field extending through the stator (2) and the slider (3).

14. The magnetic guiding device (1) according to claim 1, characterized in that, the stator (2) and / or the slider (3) is composed of at least one permanent magnet and / or at least one magnetic conductive element.

15. The magnetic guiding device (1) according to claim 1, characterized in that, the slider (3) can be adjusted relative to the stator (2) in a plane perpendicular to the guiding direction.

16. The magnetic guiding device (1) according to claim 1, characterized in that, the magnetic guiding device (1) is implemented as a linear guide, a rotary guide or a rotational guide.

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