Linear guide device with movement unit

Abstract

The invention relates to a linear guide device, comprising: a profile body (2), the profile body (2) having a base plate (4) with an upper side (5) and an underside (52); and a movement unit (3) with a slide (17), which has a guide unit (18) with a first guide module (20) and a second guide module (21) arranged on the slide (17), the movement unit (3) being mounted on the profiled body (2) so as to be linearly displaceable in the longitudinal direction (77). According to the invention, the first mounting projection (53) and the second mounting projection (54) project on the underside (52), a first bearing surface (56) of the first mounting projection (53) and a second bearing surface (57) of the second mounting projection (54) project from the underside (52) opposite the height direction (79), a first clamping surface (60) is provided on the first mounting projection (53), and a second clamping surface (60) is provided on the second mounting projection (54). A second clamping surface (61) is provided on the second mounting projection (54), and the first clamping surface (60) or the second clamping surface (61) is completely covered in the transverse direction (78).

Description

Technical Field

[0001] The invention relates to a linear guide device, comprising: a profile body, wherein the profile body has a base plate, the base plate has a longitudinal direction, a transverse direction at right angles to the longitudinal direction, and a height direction orthogonal to the longitudinal direction and the transverse direction, wherein a first side leg and a second side leg extend from an upper side of the base plate in the height direction and are spaced apart from each other in the transverse direction, wherein the profile body has a first inner side and a first outer side and a second inner side and a second outer side, wherein the first inner side and the second inner side are arranged opposite to each other, wherein a first guide surface is arranged at the first inner side, and a second guide surface is arranged at the second inner side. The invention relates to a method for adjusting the rotation of the sliding member and the method for adjusting the rotation of the sliding member. The method comprises: a first guide module arranged on the sliding member and a second guide module arranged on the sliding member base and spaced apart from the first guide module in a transverse direction, wherein the moving unit is supported on the profile body so as to be linearly displaceable in the longitudinal direction in the following manner, that is, the two first guide modules are movably abutted against the first guide surface, and the two second guide modules are movably abutted against the second guide surface. Background Art

[0002] In the sense of the present application, the longitudinal direction, which may also be referred to as the z-direction, the transverse direction, which may also be referred to as the y-direction, and the height direction, which may also be referred to as the x-direction, define a Cartesian coordinate system, to which reference is made hereinafter unless explicitly stated otherwise.

[0003] A linear guide of this type known from DE 10 2020 204 569 A1 has a moving unit which is linearly displaceably supported on two mutually facing first and second guide surfaces of a profile body. For the support, the moving unit can have two guide units arranged on a slide, a guide module and a second guide module opposite the first guide module in the transverse direction, wherein the second guide module is an adjustable guide module, the relative position of which in the transverse direction with respect to the slide can be variably adjusted when an adjustment movement is performed. The two first guide modules are pressed onto the first guide surface, and the two adjustable second guide modules are pressed onto the second guide surface of the profile body. Each guide unit has its own adjustment unit, which enables the adjustable guide module to be loaded with an adjustment force in order to adjust the prestressing force with which the two guide modules of the relevant guide unit are pressed onto the guide surfaces of the profile body respectively associated therewith. The adjusted prestressing force has a significant influence on the accuracy of the guidance of the moving unit on the profile body. In this way, the linear guide device enables, for example, precise guidance of a mechanical element supported on the slide of the moving unit in the longitudinal direction.

[0004] Typically, linear guides of this type are fastened to a support, such as a flat machine table. For this purpose, a clamping device connected or connectable to the support is usually used, which at least partially loads the profile body with a clamping force and thus tensions it onto the support. The points of application for the clamping force are usually arranged in a plurality of edge regions of the profile body, which are spaced apart from one another in the transverse direction, in order not to impair the linear movement of the movement unit. Due to the clamping force, stresses or deformations occur in the profile body, as a result of which the distance between the first guide surface and the second guide surface changes compared to the stress-free or non-deformed state. Summary of the invention

[0005] Based on this, the object of the present invention is to ensure the guiding function in the fixed state.

[0006] In order to achieve this task, according to the present invention, in combination with the features mentioned at the beginning, it is configured that the first and second assembly protrusions protrude at the lower side and are spaced apart from each other in the lateral direction, wherein the first supporting surface of the first assembly protrusion and the second supporting surface of the second assembly protrusion are located in a common plane and protrude from the lower side opposite to the height direction, wherein a first clamping surface opposite to the first supporting surface is provided at the first assembly protrusion, and a second clamping surface opposite to the second supporting surface is provided at the second assembly protrusion, and wherein the first supporting surface completely covers the first clamping surface in the lateral direction, and the second supporting surface completely covers the second clamping surface in the lateral direction.

[0007] In this way, there is an advantageous possibility of tensioning the profile body of the linear guide unit onto the support without deformations in the profile body that would affect the accuracy of the guidance. This is caused by the first clamping surface being completely covered by the first support surface and the second clamping surface being completely covered by the second support surface. This facilitates the flow of force, in which the clamping forces acting on the first clamping surface or on the second clamping surface are directed into the support, in particular the machine table, via the opposite first support surface or second support surface. This leads to an advantageous stress or deformation course in the profile body, in which the deformations of the base plate and / or the first leg and / or the second leg can be reduced to such an extent that the guiding function is not impaired. This can also be referred to as decoupling in terms of stress technology.

[0008] In the context of the present application, full coverage in the transverse direction is understood to mean that the clamping surface or the surface resulting from the projection of the clamping surface into the plane of the support surface has an extension in the transverse direction that is no greater than the support surface and thus does not protrude beyond the support surface in the transverse direction. Accordingly, the support surface and the clamping surface or at least the projection of the clamping surface are so similar in geometry that these surfaces can be transferred into each other in the height direction by means of a pure displacement.

[0009] In other words, the extension of the support surface in the transverse direction always corresponds at least to the extension of the clamping surface or the projection of the clamping surface into the plane of the support surface, wherein the two surfaces are arranged at the corresponding mounting projections in such a way that in the projection in the height direction all points of the clamping surface are located in the support surface.

[0010] Advantageous developments of the invention emerge from the dependent claims.

[0011] In another embodiment of the linear guide, the extension of the first or second bearing surface in the transverse direction corresponds to 0.5 to 1.25 times the extension of the first or second clamping surface in the transverse direction. This embodiment of the first and second bearing surfaces achieves that these surfaces have a compact extension in the transverse direction. In addition, it is achieved that the force flow generated by the clamping force introduced into the clamping surface extends directly to the bearing surface in a manner that is as concentrated as possible and can be directed from there, for example, to the machine table on which the profile body is clamped. In addition, due to at least a large degree of surface consistency between the clamping surface and the bearing surface, a defined spatial orientation of these surfaces relative to each other and, for example, the flatness of the bearing surface are established with high precision, which facilitates favorable stress or deformation processes in the profile body.

[0012] Preferably, the extension of the first bearing surface in the transverse direction corresponds to the extension of the first clamping surface in the transverse direction, and the extension of the second bearing surface in the transverse direction corresponds to the extension of the second clamping surface in the transverse direction. This results in a substantially central and rectilinear force flow between the clamping surface and the bearing surface.

[0013] In a particularly preferred embodiment, the first clamping surface is oriented parallel to the first contact surface and the second clamping surface is oriented parallel to the second contact surface.

[0014] The ratio of the extension of the first support surface in the transverse direction to the extension of the base plate in the transverse direction and the ratio of the extension of the second support surface in the transverse direction to the extension of the base plate in the transverse direction are expediently at most 0.1. In particular, this design allows the force flow to be directed to the support surface in a direct manner without causing impermissible deformations in the profile body that would impair the guiding function.

[0015] The first mounting projection is advantageously arranged in the first edge region of the base plate and the second mounting projection is arranged in the second edge region of the base plate. This arrangement achieves a maximum spacing between the first mounting projection and the second mounting projection in the transverse direction and a maximum spacing between the first clamping surface and the second clamping surface in the transverse direction relative to the profile body, thereby improving the force flow in the sense of small deformations.

[0016] In another embodiment, upper and lower bridges are formed by forming a recess in the profile body between the upper side and the lower side extending through the entire base plate in the longitudinal direction, which leads to a further improvement in rigidity and thus to less deformation of the profile body when used as intended.

[0017] Preferably, the ratio of a first distance of the middle plane of the upper bridge relative to the first or second support surface to a second distance of the middle plane of the upper bridge relative to the first upper side of the first leg and / or the second upper side of the second leg corresponds to the ratio of the second distance to the sum of the first and second distances. In other words, the first distance corresponds to approximately 38.2% of the total extension (that is, the sum of the first and second distances). In an arrangement of this type, the middle plane is located in the so-called golden section, which results in a particularly favorable distribution of stresses or deformations.

[0018] Advantageously, the distance between the first substrate end face opposite the first clamping face decreases as the distance from the first outer side of the profile body increases, and the distance between the second substrate end face opposite the second clamping face decreases as the distance from the second outer side of the profile body increases. Purely by way of example, the clamping face is designed as a first side face of a groove introduced into the outer side, and the substrate end face is designed as a second side face of the groove and is connected in particular by a groove bottom face (which can also be referred to as a connecting face) oriented parallel to the outer side. Preferably, the clamping face is oriented transversely to the outer side, while the substrate end face is oriented at an angle different from 90° relative to the outer side. Accordingly, the first substrate end face is oriented at a first angle relative to the first clamping face, and the second substrate end face is oriented at a second angle relative to the second clamping face. By means of this geometry, stress concentrations are avoided in the direction of the first and second legs, in particular in the transition region from the respective connecting face to the respective substrate end face. Accordingly, the first leg and the second leg can be further decoupled from the first mounting projection and the second mounting projection in terms of stress technology.

[0019] The following embodiment is considered particularly advantageous, in which a first guide step adjacent to the first clamping surface is provided at the first assembly projection, and a second guide step adjacent to the second clamping surface is provided at the second assembly projection, wherein the first guide step and the second guide step extend in the height direction and serve to guide and fix a possible clamping element. Preferably, the guide step is directly adjacent to the corresponding outer side and forms an undercut in the transverse direction with respect to the first clamping surface and the second clamping surface. For example, the clamping element can be designed in a section-by-section manner corresponding to the geometry of the first assembly projection and the second assembly projection. In particular, the clamping element can have a guide groove, into which the guide step engages in the assembled state. In this way, the clamping element can be prevented from slipping in the transverse direction.

[0020] Preferably, the outer side of the first assembly protrusion is oriented parallel to the first outer side of the profile body, and the outer side of the second assembly protrusion is oriented parallel to the second outer side of the profile body, wherein the outer side of the first assembly protrusion and the first outer side of the profile body and the outer side of the second assembly protrusion and the second outer side of the profile body are located in a common plane.

[0021] Advantageously, the first guide surface is formed on the first guide track and the second guide surface is formed on the second guide track, wherein the first guide track is connected to the first inner side in a force-fitting and / or material-fitting manner and the second guide track is connected to the second inner side in a force-fitting and / or material-fitting manner. The first guide track and the second guide track can be designed as separate components and made of a material different from that of the profile body, which material is advantageously a rolling bearing material, for example chrome steel. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The invention is explained in more detail below with reference to the accompanying drawings, in which:

[0023] Figure 1 A preferred structural form of a linear guide according to the invention is shown in a perspective view, the linear guide having a movement unit and a force transmission unit which are mounted linearly displaceably on a profile body.

[0024] Figure 2 Shown in perspective Figure 1 The profile body and the motion unit in

[0025] Figure 3 Shows Figure 1 Front view of the linear guide in

[0026] Figure 4 The preferred structural form of the profile body is shown in the front view.

[0027] Figure 5 A detail view of a first embodiment of a first assembly projection protruding from the underside of the profile body is shown from a front view,

[0028] Figure 6 A detailed view of another embodiment of a first assembly projection protruding from the underside of the profile body is shown in a front view, the first assembly projection having a protruding first guide step,

[0029] Figure 7 Another preferred structural form of the profile body is shown in a front view. DETAILED DESCRIPTION

[0030] exist Figure 1, a first embodiment of a linear guide device 1 is shown, which has a profile body 2 , a movement unit 3 and a force transmission unit 400 .

[0031] As from Figure 2 As can be seen from the illustration in , the profile body 2 is constructed in one piece, purely by way of example, as an aluminum extrusion. The profile body 2 extends with a constant profile in a longitudinal direction 77, a transverse direction 78 at right angles to the longitudinal direction, and a height direction 79 orthogonal to the longitudinal direction 77 and the transverse direction 78.

[0032] exist Figure 1 In the embodiment shown in FIG. 4 , the transmission unit 400 comprises a first bearing cap 26 arranged at the first end side 28 of the profile body 2, a second bearing cap 30 arranged at the second end side 32 of the profile body 2, and a transmission element (not shown) rotatably supported in the first bearing cap 26 and the second bearing cap 30, which is implemented as a threaded spindle in this embodiment and extends sectionally through the receiving space 12. The first bearing cap 26 and the second bearing cap 30 are mounted on the first end side 28 or the second end side 32 by means of a retaining means 29 (which is currently implemented as a self-tapping screw) engaged in the mounting recess 27.

[0033] A connecting element 401 is arranged at a section of the transmission element supported in the first bearing cover 26 (which protrudes in sections relative to the first bearing cover 26 in a direction opposite to the longitudinal direction 77), which can be connected to a drive device (not shown) to transmit the rotational movement provided by the drive device to the transmission element.

[0034] In order to convert the rotational movement provided by the drive into a linear movement of the movement unit 3 , a removal element 36 , which in the present case is designed as a spindle nut, is arranged in a receptacle 34 formed in the slide 17 .

[0035] Functionally, the profile body 2 can be divided into a base plate 4, a first leg 6 and a second leg 7, which are in fact integrally formed with one another. The first leg 6 and the second leg 7 are spaced apart from one another in a transverse direction 78 and project from the upper side 5 of the substantially square base plate 4 in a height direction 79. This results in a substantially U-shaped cross section which is constant in the longitudinal direction 77 over the entire extension of the profile body 2. The profile body 2 has a first outer side 8 and a first inner side 9 as well as a second outer side 10 and a second inner side 11, wherein the first inner side 9 and the second inner side 11 are arranged opposite each other.

[0036] In the embodiment shown, the profile body 2 is made of aluminum and is substantially produced by means of aluminum extrusion.

[0037] By the arrangement and orientation described above, a groove-shaped receiving space 12 is formed by the upper side 5, the first inner side 9 and the second inner side 11, which extends over the entire extension of the profile body 2 in the longitudinal direction 77. Figure 3 ), the movement unit 3 and the force transmission element 400 are accommodated in sections in the accommodation space 12, so that the movement unit 3 can be linearly moved in the accommodation space along the longitudinal direction 77. Overhangs 15, 16 are respectively formed at the end 13 of the first leg 6 facing away from the upper side 5 and at the end 14 of the second leg 7 facing away from the upper side 5, which overhangs limit the accommodation space 12 in sections in the height direction 79.

[0038] In the exemplary embodiment shown, the first leg 6 and the second leg 7 are designed to be congruent, wherein other embodiments are also conceivable which do not impair the functionality of the linear guide 1 .

[0039] The movement unit 3 has a slide 17 and a guide unit 18 having a first guide module 19 arranged on the slide 17 and a second guide module 20 arranged on the slide 17 and spaced opposite to the first guide module 19 in a transverse direction 78. The slide 17 is designed in such a way that it has a height recess 24, 25 on the first slide outer side 22 and on the second slide outer side 23, respectively, which in the assembled state correspond to the overhangs 15, 16 in the height direction 79, so that in this state a displacement of the movement unit 3 in the height direction 79 is substantially prevented.

[0040] In the embodiment shown, the first guide module 20 and the second guide module 21 are configured as linear reciprocating ball bearing guide modules, each of which has a plurality of rolling bearing elements (not shown) arranged in two channels stacked in the height direction 79. A plurality of rolling bearing elements arranged in a row may also be referred to as rolling body rows. Currently, the rolling bearing elements are implemented as balls, but in other embodiments, they may also have other suitable geometric shapes. It is also conceivable that the first guide module 20 and the second guide module 21 are implemented as other types of rolling guide modules or sliding guide modules.

[0041] In order to accurately guide the linear movement of the movement unit 3 along the longitudinal direction 77, a first guide surface 38 is provided on the first inner side 9 and a second guide surface 39 is provided on the second inner side 11, so that the movement unit 3 can be supported on the profile body 2 in a linearly displaceable manner in the longitudinal direction 77. It is provided, for example, that a row of rolling bodies (not shown in detail) of the first guide module 20 abuts against the guide surface 38, and a row of rolling bodies (not shown in detail) of the second guide module 21 abuts movably against the second guide surface 39. During the linear movement, the rolling bodies of the first guide module 20 roll along the first guide surface 38, and the rolling bodies of the second guide module 21 roll along the second guide surface 39, wherein, by means of this contact, a play-free support is achieved with respect to the profile body 2 in all spatial directions except the longitudinal direction 77, thereby achieving an accurate linear movement of the movement unit 3. For example, the first guide surface 38 and the second guide surface 39 are a composite of differently oriented surfaces.

[0042] As in Figure 3 and Figure 4 It can be seen that the first guide surface 38 is formed on a first guide path 40 and the second guide surface 39 is formed on a second guide path 41 , which are designed as separate components in the embodiment shown.

[0043] In the present case, the first guide rail 40 and the second guide rail 41 are designed as profiles with a constant cross section extending in the longitudinal direction 77 and furthermore have a respective rear side 42, 43 and respectively two boundary surfaces 44, 45 adjoining the first guide surface 38 or the second guide surface 39, which limit the first guide surface 38 or the second guide surface 39 in the height direction 79. Furthermore, contact surfaces 46, 47 opposite the respective boundary surfaces 44, 45 are formed on the first guide rail 40 and the second guide rail 41, and a respective rear side 48, 49 is formed on the rear side 42, 43, which rear sides are provided for contacting a respective corresponding surface of the profile body 2.

[0044] The first guide rail 40 is received in a first receiving groove 50 in the first inner side 9, and the second guide rail 40 is received in a second receiving groove 51 in the second inner side 11, wherein the first receiving groove 50 and the second receiving groove 51 are each constructed in an area adjacent to the upper side 5. Here, the first receiving groove 50 and the second receiving groove 51 are each designed in a trapezoidal manner so that the distance between the corresponding groove side surfaces 520, 530 increases with increasing groove depth. Two contact surfaces 560, 570 are each implemented at the corresponding groove bottom 540, 550, which are spaced apart in the height direction 79 and protrude relative to the groove bottom 540, 550 and are designed to contact the corresponding back side 48, 49 of the first guide rail 40 or the second guide rail 41. Here, at Figure 3 and Figure 4 In the embodiment shown in , the dimensions of the first guide rail 40 and the second guide rail 41 as well as the first receiving groove 50 and the second receiving groove 51 are selected so that there is a force-fit connection in each case. However, in alternative embodiments, a force-fit and material-fit connection or a material-fit connection is also possible.

[0045] As in Figures 1 to 4 As shown in the figure, a first assembly protrusion 53 and a second assembly protrusion 54 extend from the lower side 52 of the base plate 4 opposite to the upper side 5, which are spaced apart from each other in a lateral direction 78, wherein a first supporting surface 56 of the first assembly protrusion 53 and a second supporting surface 57 of the second assembly protrusion 54 are located in a common plane and protrude from the lower side 52 opposite to the height direction 79.

[0046] In the present case, the first mounting projection 53 and the second mounting projection 54 extend in the longitudinal direction 77 over the entire extension of the base plate 4 .

[0047] As shown in FIG. 1 , the first fitting protrusion 53 is Figure 5 As can be seen particularly well in the detail view A shown in FIG. 5 , a first clamping surface 60 opposite to the first bearing surface 56 is provided at the first mounting projection 53. Here, the first bearing surface 56 and the first clamping surface 60 are designed or arranged in such a way that the first bearing surface 56 completely covers the first clamping surface 60 in the transverse direction 78. In the embodiment shown here, the first clamping surface 60 is oriented, by way of example, parallel to the first bearing surface 56. Similarly, a second clamping surface 61 opposite to the second bearing surface 57 is provided at the second mounting projection 54, which second clamping surface is again completely covered by the second bearing surface 57 in the transverse direction 78 and is oriented, by way of example, parallel to the second bearing surface in this embodiment.

[0048] In an alternative embodiment, it is possible that the first clamping surface 60 and the second clamping surface 61 are not oriented parallel to the first support surface 56 or the second support surface 57. In this case, if the surface of the first clamping surface 60 or the second clamping surface 61 projected into the plane of the first support surface 56 or the second support surface 57 is completely covered, it is referred to as complete coverage.

[0049] The fact that the first clamping surface 60 is covered by the first support surface 56 and the second clamping surface 61 is completely covered by the second support surface 57 means that the clamping force acting on the first clamping surface 60 or the second clamping surface 61 (which is applied by a clamping device (not shown) and acts substantially normal to the respective clamping surface 60, 61) can be directed via the opposite first support surface 56 or the second support surface 57 to a support (not shown), in particular a machine table. This leads to an advantageous stress course in the profile body 2, in which deformations of the base plate 4 and / or the first leg 6 and / or the second leg 7 can be reduced to such an extent that the guiding function is not impaired. In particular, a change in the distance in the transverse direction or a tilting of the surface between the first guide surface 38 and the second guide surface 39 caused or caused by this deformation should be prevented. In this respect, it can also be referred to as a stress-technical decoupling of the first mounting projection 53 and the second mounting projection 54 from the base plate 4 and / or the first leg 6 and / or the second leg 7.

[0050] In particular, if Figure 5 and Figure 6 , this effect is produced if the extension of the first bearing surface 56 in the transverse direction 78 corresponds to the extension of the first clamping surface 60, and the extension of the second bearing surface 57 in the transverse direction 78 corresponds to the extension of the second clamping surface 61. This has the effect that the force flow generated by the respective clamping force runs as straightly and thus as concentratedly and directly as possible to the first bearing surface 56 or the second bearing surface 57 and is discharged there into the bearing surface (not shown).

[0051] In this regard, it is particularly advantageous if, in any embodiment, the extension of the first bearing surface 56 or the second bearing surface 57 in the transverse direction 78 corresponds to 0.5 to 1.25 times the extension of the first clamping surface 60 or the second clamping surface 61 in the transverse direction 78. By way of example, this can prevent unfavorable force flows or stress or deformation processes within the meaning of the invention from occurring due to deviations of the corresponding surfaces (e.g. unevenness caused by manufacturing technology) when the extension of the first bearing surface 56 or the second bearing surface 57 is greater. The at least identical extension in the transverse direction 78 also prevents the occurrence of inadmissibly high stresses or deformations in the first mounting projection 53 and the second mounting projection 54.

[0052] Here, the first mounting projection 53 and the second mounting projection 54 can be designed such that the ratio of the extension of the first bearing surface 56 in the transverse direction 78 to the extension of the base plate 4 in the transverse direction 78 and the ratio of the extension of the second bearing surface 57 in the transverse direction 78 to the extension of the base plate 4 in the transverse direction 78 is at most 0.1. By this design of the first bearing surface 56 and the second bearing surface 57, the decoupling in terms of stress technology can be further improved by directing the force flow to the first bearing surface 56 or the second bearing surface 57.

[0053] Furthermore, the first mounting protrusion 53 is arranged in the first edge region 62 of the base plate 4, and the second mounting protrusion 54 is arranged in the second edge region 63 of the base plate 4. With this arrangement, a maximum spacing between the first mounting protrusion 53 and the second mounting protrusion 54 in the transverse direction 78 and a maximum spacing between the first clamping surface 60 and the second clamping surface 71 in the transverse direction 78 are achieved.

[0054] As especially Figure 3 and Figure 4 As can be seen in the front view (looking toward the end side 28) shown in FIG, the illustrated embodiment of the profile body 2 has a recess 64 formed between the upper side 5 and the lower side 52, which extends through the entire base plate 4 in the longitudinal direction 77, thereby forming an upper bridge 66 and a lower bridge 67. Compared to a solid embodiment in this area, the rigidity is improved by means of the upper bridge 66 and the lower bridge 67. It is also possible to provide in the recess 64 assembly recesses 27 spaced apart from one another in the transverse direction 78, into which some of the retaining means 29 engage in order to attach the first bearing cap 26 to the first end side 28 or the second bearing cap 30 to the second end side 32.

[0055] In the linear guide unit 1 Figures 1 to 5 The first embodiment shown in Figure 6 The second embodiment shown only in detail B and in Figure 7In the third embodiment shown in FIG. 1 , the distance between the first base plate end face 69, which is opposite the first clamping face 60, and the first clamping face 60 decreases with increasing distance from the first outer side 8 of the profile body 2. This design results in an angled orientation of the first base plate end face 69 relative to the first clamping face 68, wherein a groove, which in this context can also be referred to as a tapered groove, is formed in the present case by the first clamping face 68, the first base plate end face 69 and a first, first connecting face 70 adjoining the first clamping face 68 and the first base plate face 69. On the one hand, the angled orientation, which is preferably produced during the first manufacturing process, in particular extrusion, enables further improved decoupling in terms of stress technology and, on the other hand, simpler access to the first clamping face 68 for possible post-processing, in particular machining post-processing or selective hardening.

[0056] Similarly, the distance between the second base plate end surface 72 and the second clamping surface 71 opposite to the second clamping surface 71 decreases as the distance from the second outer side 10 of the profile body 2 increases. In the illustrated embodiment, the second clamping surface 71 and the second base plate end surface 72 are connected by a second connecting surface 73 adjacent to the two.

[0057] For further decoupling with respect to stress technology, decoupling grooves (not shown) having a suitable geometry may be provided in the first connecting surface 70 and / or the second connecting surface 73 .

[0058] In order to ensure the most compact possible extension of the profile body 2 in the transverse direction 78, the outer side 74 of the first assembly protrusion 53 is oriented parallel to the first outer side 8 of the profile body 2, and the outer side 75 of the second assembly protrusion 54 is oriented parallel to the second outer side 11 of the profile body 2, and the outer side 74 and the first outer side 8 of the first assembly protrusion 53 and the outer side 75 and the second outer side 11 of the second assembly protrusion 54 are respectively located in a common plane.

[0059] At the first fitting protrusion 53 Figure 6 In the embodiment shown in detail B in FIG. 5 , a first guide step 76 is provided on the first assembly projection 53 adjacent to the first clamping surface 68, which extends in the height direction 79. In the embodiment shown, the first guide step 76 is arranged adjacent to the outer side 73 of the first assembly projection 53, so that the first clamping surface 68 is positioned between the first guide step 76 and the first connecting surface 70. The second assembly projection 54 can also be designed in such a way that a second guide step is similarly provided on the second assembly projection 54 adjacent to the second clamping surface 71 and extending in the height direction 79. However, it is also conceivable that the first assembly projection 53 and the second assembly projection 54 are designed according to different embodiments.

[0060] Preferably, in the alternative and in Figure 7 In the embodiment shown in FIG. 1 , the recess 64 in the base plate 4 can be positioned and designed in such a way that the ratio of a first distance of the middle plane 80 of the upper bridge 66 (which extends in the direction of the longitudinal direction 77 and in the direction of the transverse direction 78 ) to the first support surface 56 or the second support surface 57 to a second distance of the middle plane 80 of the upper bridge 66 to the first upper side 78 of the first leg 6 and / or the second upper side 79 of the second leg 9 corresponds to the ratio of the second distance to the sum of the first and second distances. As shown by way of example, the first distance corresponds to approximately 38.2% of the total extension of the profile body 2 (which results from the sum of the first distance and the second distance). Accordingly, the middle plane 80 of the upper bridge 66 is arranged in the golden section, which results in a particularly favorable distribution of the deformation. Furthermore, a sufficiently large distance between the upper bridge 66 and the lower bridge 67 provides the advantage that, when the transmission element is designed as a belt of a belt drive (not shown), the loaded run extends through the receiving space 12 and the unloaded run extends through the recess 64. The first and second bearing caps, the coupling element and the removal element of this (not shown) alternative embodiment of the transmission unit or slide are designed in accordance with the requirements of a belt drive.

Claims

1. A linear guide device having - a profile body (2), wherein The profile body (2) comprises a base plate (4), the base plate having a longitudinal direction (77), a transverse direction (78) at right angles to the longitudinal direction and a height direction (79) orthogonal to the longitudinal direction (77) and the transverse direction (78), wherein a first leg (6) and a second leg (7) protrude from an upper side (5) of the base plate (4) in the height direction (79) and are spaced apart from each other in the transverse direction (78), wherein the profile body (2) comprises a first inner side (9) and a first outer side (8) and a second inner side (11) and a second outer side (10), wherein the first inner side (9) and the second inner side (11) are arranged opposite to each other, wherein a first guide surface (38) is provided on the first inner side (9) and a second guide surface (39) is provided on the second inner side (11), and wherein the base plate (4) has a lower side (52) opposite to the upper side (5); and - a movement unit (3) having a slide (17), the movement unit having a guide unit (18), the guide unit having a first guide module (20) arranged on the slide (17) and a second guide module (21) arranged on the slide (17) opposite to the first guide module (20) in the transverse direction (78), wherein the movement unit (3) is supported on the profile body (2) so as to be linearly displaceable in the longitudinal direction (77) in that the first guide module (20) is movably in contact with the first guide surface (38) and the second guide module (21) is movably in contact with the second guide surface (39), It is characterized in that A first assembly protrusion (53) and a second assembly protrusion (54) extend from the lower side (52) and are spaced apart from each other in the transverse direction (78), wherein a first supporting surface (56) of the first assembly protrusion (53) and a second supporting surface (57) of the second assembly protrusion (54) are located in a common plane and protrude from the lower side (52) opposite to the height direction (79), wherein a first clamping surface (60) opposite to the first supporting surface (56) is provided at the first assembly protrusion (53), and a second clamping surface (61) opposite to the second supporting surface (57) is provided at the second assembly protrusion (54), and wherein the first supporting surface (56) completely covers the first clamping surface (60) in the transverse direction (78), and the second supporting surface (57) completely covers the second clamping surface (61) in the transverse direction.

2. The linear guide device according to claim 1, characterized in that The extension of the first supporting surface (56) or the second supporting surface (57) in the transverse direction (78) corresponds to 0.5 to 1.25 times the extension of the first clamping surface (60) or the second clamping surface (61) in the transverse direction (78).

3. The linear guide device according to claim 1 or 2, characterized in that: The ratio of the extension of the first supporting surface (56) in the transverse direction (78) to the extension of the substrate (4) in the transverse direction (78) and the ratio of the extension of the second supporting surface (57) in the transverse direction (78) to the extension of the substrate (4) in the transverse direction (78) are at most 0.

1.

4. The linear guide device according to any one of claims 1 to 3, characterized in that The extension of the first support surface (56) in the transverse direction (78) corresponds to the extension of the first clamping surface (60), and the extension of the second support surface (57) in the transverse direction (78) corresponds to the extension of the second clamping surface (61).

5. The linear guide device according to any one of claims 1 to 4, characterized in that The first clamping surface (61) is oriented parallel to the first supporting surface (56), and the second clamping surface (62) is oriented parallel to the second supporting surface (57).

6. The linear guide device according to any one of claims 1 to 5, characterized in that The first fitting protrusion (53) is arranged in a first edge region (62) of the base plate (4), and the second fitting protrusion (54) is arranged in a second edge region (63) of the base plate (4).

7. The linear guide device according to any one of claims 1 to 6, characterized in that An upper bridge (66) and a lower bridge (67) are formed by forming a recess (64) between the upper side (5) and the lower side (52) extending in the longitudinal direction (77) through the entire base plate (4).

8. The linear guide device according to any one of claims 1 to 7, characterized in that The ratio of a first distance of the middle plane (80) of the upper bridge portion (66) relative to the first supporting surface (56) and / or the second supporting surface (57) to a second distance of the middle plane (80) of the upper bridge portion (66) relative to the first upper side (78) of the first leg (6) and / or the second upper side (79) of the second leg (7) corresponds to the ratio of the second distance to the sum of the first and second distances.

9. The linear guide device according to any one of claims 1 to 8, characterized in that The distance between the first substrate end surface (69) opposite to the first clamping surface (60) decreases as the distance from the first outer side (8) of the profile body (2) increases, and the distance between the second substrate end surface (72) opposite to the second clamping surface (61) decreases as the distance from the second outer side (10) of the profile body (2) increases.

10. The linear guide device according to any one of claims 1 to 9, characterized in that A first guide step (76) is provided at the first assembly protrusion (53) adjacent to the first clamping surface (60), and a second guide step is provided at the second assembly protrusion (54) adjacent to the second clamping surface (61), wherein the first guide step (76) and the second guide step extend in a height direction (79).

11. The linear guide device according to any one of claims 1 to 10, characterized in that The outer side (73) of the first assembly protrusion (53) is oriented parallel to the first outer side (8) of the profile body (2), and the outer side (75) of the second assembly protrusion (54) is oriented parallel to the second outer side (10) of the profile body (2), wherein the outer side (73) of the first assembly protrusion (53) and the first outer side (8) of the profile body (2) and the outer side (75) of the second assembly protrusion (54) and the second outer side (10) of the profile body (2) are respectively located in a common plane.

12. The linear guide device according to any one of claims 1 to 11, characterized in that The first guide surface (38) is constructed on a first guide track (40), and the second guide surface (39) is constructed on a second guide track (41), wherein the first guide track (40) is connected to the first inner side (9) in a force-fitting and / or material-fitting manner, and the second guide track (41) is connected to the second inner side (11) in a force-fitting and / or material-fitting manner.

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