DE102017206405B4 - Guide member for guiding a movement of a movable part of a machine - Google Patents

Abstract

Guide member for guiding a movement of a movable part (2) of a machine (1), comprising
a rigid guide bar (8)
- At least one support bar (22), via which the guide bar (8) on an underside to a substrate or foundation (7) can be fastened and which is coupled via at least one elastically bendable intermediate element (20, 21) to the rigid guide bar (8) .
in which
the support strip (22) has at least one fastening element (42) for fastening a bearing and anchoring element (13, 26) to the support strip (22),
- By the elastically bendable intermediate element (20, 21) a relative translation movement between the rigid guide bar (8) and the support bar (22) in a longitudinal direction (X) of the guide bar is made possible
- The guide beam (8) has an upper wall (15), a lower wall (18) and side walls (14,19), which form a quadrangular cross-section profile with an inner space (51), wherein the elastically bendable intermediate element (20, 21) is concealed by the side walls (14, 19),
- The support bar (22) on the side of the inner space (51) at a distance from the lower wall (18) is arranged and the lower wall (18) has an opening (52) for the bearing and anchoring element (13, 26), so that the bearing and anchoring element (13, 26) through this opening (52) can penetrate the lower wall when it is attached to the support bar (22).

Description

The present invention relates to a guide member for guiding a movement of a movable part of a machine and an assembly comprising the guide member, a coordinate measuring machine having the assembly and a method for fixing the assembly.

In measuring machines with linear guides, also referred to as X Guides or guide beams, which also serve as a machine frame, are commonly connected to steel or cast iron guide beams with a concrete foundation. At very long X Axes, two or more beams must be built one behind the other in the longitudinal direction and connected together at the joints. Due to the different materials of beam and foundation and the long lengths of the beams, temperature variations lead to significantly different changes in length. This is also the case with a guide bar of appropriate length. These different changes in length must be compensated either by flexible elements between the beam and foundation or they lead to tension and thus to deformations in the X Guidance and thus loss of accuracy Shen.

The DE 10 2013 205 024 A1 discloses to solve this problem, a compensation element for mounting a component on a foundation, wherein the compensation element comprises at least one bearing element and at least one anchor element, wherein the anchor element anchoring the compensation element in the foundation, wherein the bearing element is attachable to the at least one anchor element. The bearing element allows a relative translation movement between the component and the foundation in at least one spatial direction, wherein the spatial direction has at least a portion which is oriented perpendicular to a central longitudinal axis of the bearing element, wherein the anchor element can be fastened by the bearing element to the bearing element. However, the bearing element described therein is constructed relatively expensive.

The following patent applications relate to the storage of guide components. FR 926492 A concerns the storage of structural components. JP S58132601 A and JP S5896202 A relate to movable tables.

The present invention has for its object to provide a simple structure in a guide bar to compensate for thermal stresses and to allow easy installation of such a guide bar.

The object is achieved with a guide component according to claim 1. Preferred embodiments are specified in subclaims and in the following description.

According to a basic idea of the invention, an elastic compensation element in the guide bar (hereinafter also: bar) itself is integrated, instead of creating a balance over a separate storage and anchoring element as before in the above-cited prior art. According to the invention a support bar is integrated in the guide bar, which is movable relative to the other rigid beam structure.

• - einen starren Führungsbalken
• - zumindest eine Tragleiste, über welche der Führungsbalken auf einer Unterseite an einem Untergrund befestigbar ist und die über zumindest ein elastisch verbiegbares Zwischenelement an den starren Führungsbalken angekoppelt ist,

wobei die Tragleiste zumindest ein Befestigungselement zur Befestigung eines Lager-und Verankerungselements an der Tragleiste aufweist,
und wobei durch das elastisch verbiegbare Zwischenelement eine relative Translationsbewegung zwischen dem starren Führungsbalken und der Tragleiste in eine Längsrichtung des Führungsbalkens ermöglicht ist,
der Führungsbalken eine obere Wand, eine untere Wand und Seitenwände aufweist, die ein im Querschnitt viereckiges Profil mit einem Innenraum bilden, wobei das elastisch verbiegbare Zwischenelement von den Seitenwänden verdeckt ist, und die Tragleiste auf der Seite des Innenraums mit Abstand zu der unteren Wand angeordnet ist und die untere Wand eine Öffnung für das Lager- und Verankerungselement aufweist, sodass das Lager- und Verankerungselement durch diese Öffnung die untere Wand durchdringen kann, wenn es an der Tragleiste befestigt ist.The invention provides a guide member for guiding a movement of a movable part of a machine, comprising

• - a rigid guide bar
• - At least one support bar, via which the guide bar is fastened on a bottom on a substrate and which is coupled via at least one elastically bendable intermediate element to the rigid guide bar,

wherein the support strip has at least one fastening element for fastening a bearing and anchoring element to the support strip,
and wherein the elastically bendable intermediate element permits a relative translation movement between the rigid guide bar and the carrier bar in a longitudinal direction of the guide bar,
the guide beam having a top wall, a bottom wall and side walls forming a quadrangular cross-section profile with an interior, wherein the elastically bendable intermediate member is covered by the side walls, and the support bar on the side of the interior spaced from the bottom wall is and the lower wall has an opening for the bearing and anchoring element, so that the bearing and anchoring element can penetrate through this opening the lower wall when it is attached to the support bar.

The guide member may comprise a plurality of support strips, which are preferably arranged in the longitudinal direction one behind the other and at a distance on the guide bar. Each support bar may have one or more of the fasteners so that one or more bearing and anchoring elements can be attached to a support bar.

The named machine is in particular a coordinate measuring machine (CMM) or a machine tool. A coordinate measuring machine is in particular a horizontal arm CMM, or a gantry CMM.

• - ein oder mehrere Längenausgleichselemente sind in den Führungsbalken integriert, insbesondere in ein Schweißteil des Führungsbalkens, sodass keine zusätzlich hergestellten Ausgleichselemente erforderlich sind, wie beispielsweise im eingangs zitierten Stand der Technik.
• - Erwähnte Tragleiste ist dazu vorgesehen, mit einem Lager- und Verankerungselement verbunden zu werden, über welches wiederum eine Verbindung des Balkens zu einem Fundament hergestellt wird. Dadurch, dass ein Längenausgleich nicht über ein Lager-und Verankerungselement erfolgen muss, wie in eingangs zitierten Stand der Technik, kann dieses sehr einfach ausgeführt sein und muss keine Bewegungsfreiheitsgrade zur Verfügung stellen.
• - Eine Bearbeitung an der Unterseite des fertig gestellten Balkens, beispielsweise nach dem Schweißen, entfällt, da ein Befestigungselement für ein Lager- und Verankerungselement an der Tragleiste schon bei der Herstellung der Tragleiste hergestellt werden kann, bevor diese mit dem Führungsbalken verbunden wird.
• - Einfache Montage der Balken vor Ort, da keine Ausgleichselemente unter dem Balken montiert werden müssen.
• - Durch eine höhere Eigensteifigkeit des Balkens kann der Abstand von Aufstellpunkten in Längsrichtung gewählt werden und es sind deutlich weniger Lager- und Verankerungselemente erforderlich.
• - Durch die Verwendung von Lager-und Verankerungselementen mit Vergussankern kann eine Verbindung zu Fundament mit Vergussmörtel hergestellt werden, wodurch sich der Montageprozess deutlich vereinfacht.

The solution according to the invention is characterized by one or more of the following features and / or one or more of the following advantages:

• - One or more length compensation elements are integrated in the guide bar, in particular in a welded part of the guide bar, so that no additional prepared compensating elements are required, such as in the cited prior art.
• - Mentioned support bar is intended to be connected to a storage and anchoring element, via which in turn a compound of the beam is made into a foundation. The fact that a length compensation does not have to take place via a bearing and anchoring element, as in the cited prior art, this can be carried out very easily and does not have to provide movement degrees of freedom.
• - Processing on the underside of the finished beam, for example, after welding, is eliminated, since a fastener for a bearing and anchoring element on the support bar can be made during the preparation of the support bar before it is connected to the guide bar.
• - Easy installation of the beams on site, as no compensating elements must be mounted under the beam.
• - Due to a higher inherent rigidity of the beam, the distance of erection points in the longitudinal direction can be selected and there are significantly fewer storage and anchoring elements required.
• - By using bearing and anchoring elements with potting anchors, a connection to foundation with grout can be made, which significantly simplifies the assembly process.

Further advantages will be mentioned on the basis of specific embodiments.

The guide bar can also be referred to as a guide rail. It is designed in box construction and has an upper plate or wall, a lower plate or wall and side walls. The lower plate may be interrupted at one or more points at which / each one mentioned support bar is arranged. The support bar can be connected via the elastic intermediate element to the upper plate (more precisely to the underside of the upper plate). On the top of the guide bar further guide elements may be provided, for example, individual rail elements.

The support bar may extend across the width of the guide bar. The support bar can be designed plate-shaped or web-shaped, wherein the exact shape and surface shape is not limited. The support bar is connected, preferably exclusively, via the elastically bendable intermediate element with the guide bar or other parts of the guide bar.

The elastically bendable intermediate element can be designed such that further movements than the said translatory movement in the longitudinal direction are made possible. For example, the elastically bendable intermediate element can be designed so that in addition a translational movement in the transverse direction is made possible. For example, the elastically bendable intermediate element can be designed so that in addition a torsional movement is made possible. This means that a rotational movement and at least one spatial axis is made possible, which is a relative rotation between the guide beam and the support bar. In this way, a rotation of the beam relative to a foundation can be made possible if the guide beam is fastened to the foundation via a bearing and anchoring element, wherein said bearing and anchoring element is in turn secured to the support bar movable relative to the guide beam.

In one embodiment, the support bar is coupled via at least two elastically bendable intermediate elements to the rigid guide element, wherein the two intermediate elements are spaced apart in the longitudinal direction of the guide beam. As a result, a better carrying capacity is provided with simultaneous elasticity.

In one embodiment, the intermediate element (s) is / are formed as an elastically deflectable plate or as a bendable strip oriented transversely to the longitudinal direction of the guide bar. If there are at least two deflectable plates or strips, in this embodiment a bending parallelogram is formed in the guide bar formed by the support bar, plates or strips and a part of the guide bar to which the plates or strips are attached, in particular a portion of an upper one Plate of guide bar.

In one embodiment, the support bar, the Guide beam and the metal or the intermediate elements.

In one embodiment, the guide bar and the intermediate element or elements are integrally connected to one another. This is particularly advantageous in connection with the above-mentioned embodiment, in which the guide bar and the intermediate element or elements are made of metal, since in this case a welded connection can be selected.

In one embodiment, the support bar and the or the intermediate elements are integrally connected to one another. This is particularly advantageous in connection with the aforementioned embodiment, in which the support bar and the or the intermediate elements are made of metal, since in this case a welded connection can be selected.

In one embodiment, the fastening element is an opening into which the bearing and anchoring element can be inserted and fastened, so that the bearing and anchoring element protrudes with an anchoring part on the underside of the guide member. The opening may be a bore. The opening may have an internal thread to screw the bearing and anchoring element. The protruding anchoring part can be introduced into a foundation, as a result of which the entire guide component is connected to the foundation.

In one embodiment, the guide member has a rigid locking member with which the relative translational movement between the rigid guide beam and the support bar is lockable, wherein the locking member has a connection to the rigid guide beam and has a connection to the support bar, and wherein one of the compounds, preferably the connection to the support bar, is releasable to release the translational movement. Advantage of this embodiment is that a translational movement is either lockable or releasable. By this embodiment, optionally, a fixed bearing or a movable bearing can be made where the support bar is arranged. In this embodiment, the locking member acts as a rigid bridge between the support bar and guide bar when a connection is made to both.

This aforementioned embodiment is particularly advantageous when a plurality of support strips are arranged in the longitudinal direction along the guide beam. At the location / locations of one or more support bars a fixed bearing can be made by connecting between the locking member and the support bar is made. The movement of the support bar is locked there in particular, or a fixed point made there where no longitudinal displacement is desired, especially in the vicinity of a reference point or at several abutting guide bar in the middle of each bar guide bar. In all other support strips, the translational movement is preferably released and there made a floating bearing to allow movement of the support beam relative to the support bar and a substrate.

Further, with this embodiment, it is possible to fix all support bars for stabilization during production or transportation or installation. After final assembly to a foundation then connections between locking parts and support bars, or connections between the guide bar and locking parts can be released to allow a translational movement after installation or to release the translational degree of freedom, preferably with the exception of a fixed point mentioned. The described embodiment has the advantage of a simple definition of a fixed point of X -Axis by the fixation and production of fixed bearings or by releasing the connection to places where a floating bearing is desired. There are no different set-up and no different constructions for fixed and floating bearings required.

The blocking part can be designed, for example, as a plate. One of the connections, to the support bar or to the guide bar, may be a screw connection or plug connection, for example with a bolt. The remaining, other connection can be permanent, such as cohesive, executed, since it is sufficient to either solve the connection to the support bar or the connection to the guide bar.

As already mentioned above, the guide bar is box-shaped. The guide bar is designed in the form of a tube with a polygonal cross-sectional profile. According to the invention, the guide beam comprises a top wall, which is a top wall, a bottom wall, which is a bottom wall, and side walls, which form a quadrangular cross-section profile with an interior, wherein the elastically deflectable intermediate element is covered by the side walls, in particular within or disposed substantially within the interior space. As a result, the elastically bendable intermediate element is protected against external influences. The elastically bendable intermediate element can be connected directly or indirectly to the upper wall.

In one embodiment, the lower wall is interrupted at one or more locations, wherein a respective support bar is arranged at a point of interruption. It can thus be more interruption points, which are spaced apart from each other in the longitudinal direction of the guide bar, and on each of which a support bar is arranged. Each support bar is assigned according to at least one bendable intermediate element. The support bar may be arranged at the point of interruption so that it is flush with the bottom wall on its underside. But you can also be slightly offset in height and transferred the bottom wall either down, so from the Stand out a bit, or be slightly inwards.

According to the invention, the support bar is arranged on the side of the interior at a distance from the lower wall and the lower wall has an opening for the bearing and anchoring element, so that the bearing and anchoring element can penetrate the lower wall when it is attached to the support bar , If it is intended to mount several bearing and anchoring elements on a support strip, the lower wall for each of these elements may each have an opening or a single opening which is sufficiently dimensioned for a plurality of these elements. In this variant, the support bar is arranged substantially or completely in the interior of the guide bar. The support bar is arranged in the installation position of the guide bar completely above the lower wall. Only the one or more bearing and anchoring elements protrude from the guide bar when it / is attached to the support bar / are, preferably only with an anchoring part for anchoring in a foundation. This has the advantage that the lower wall must have no interruption for the entire support strip compared to the aforementioned variant, but openings are provided only where each bearing and anchoring element must penetrate the lower wall. Furthermore, the handling and transport of the guide bar are facilitated because on the bottom, so on the side of the bottom wall, no parts survive (before storage and anchoring elements are attached to the support bar), which could be damaged during transport. The support bar can protrude in this variant in openings in opposite side walls and flush on the outside of the support beam or substantially flush with the side walls to allow a lock with a locking member described above.

In a further aspect, the invention relates to an assembly, comprising a guide member as described above and at least one bearing and anchoring element which is attached to the support bar. Bearing and anchoring elements are known from the prior art, for example from the patent application EP 0919763 A1 , and there in particular from the 2 and the associated figure description. On a support bar more bearing and anchoring elements can be attached. An anchoring part, also referred to as anchor, of the bearing and anchoring element protrudes downwards from the support strip, and can be anchored in a foundation.

Furthermore, in one aspect, the invention relates to a machine, in particular a coordinate measuring machine, comprising an assembly as mentioned above, wherein the guide component of the assembly is anchored in a foundation via the bearing and anchoring element, with the anchoring part of the bearing and anchoring element.

The mentioned translational movement between the rigid guide beam and the support bar in a longitudinal direction of the guide bar means, in the anchored state of the assembly in a foundation, in particular that the translational movement is parallel to a surface of the foundation. The translational movement results in particular from a different thermal expansion of the foundation and the guide bar. In particular, this translation direction may be a horizontal direction extending in or parallel to a central longitudinal axis of the supported beam. When installed, the guide bar is arranged in particular at a distance from the foundation. In particular, the support bar is arranged at a distance from the foundation.

• - Eingießen einer Vergießmasse in eine Fundamentöffnung,
• - Einbringen des Verankerungsteils in die Fundamentöffnung,
• - Aushärten der Vergießmasse zur Bildung eines starren Fundaments und zur Befestigung des Zusammenbaus.

In a further aspect, the invention relates to a method of securing an assembly as aforesaid in a foundation comprising

• Pouring a potting compound into a foundation opening,
• Inserting the anchoring part in the foundation opening,
• - Curing the potting compound to form a rigid foundation and to attach the assembly.

The anchoring part is the anchoring part of the bearing and anchoring element. The potting compound is, for example, a plastic potting compound, a concrete or a cement, for example a swelling cement.

As a further step, the method may include: adjusting the assembly. Here, the distance of the assembly is set to the foundation. This is done with the bearing and anchoring element, or more thereof, having this adjusting means.

• - Lösen der Verbindung zwischen dem Sperrteil und der Tragleiste oder der Verbindung zwischen dem Sperrteil und dem Führungsbalken, um nach der Befestigung des Zusammenbaus die Translationsbewegung zwischen dem starren Führungsbalken und der Tragleiste in Längsrichtung des Führungsbalkens freizugeben.

In a further development of the method, the assembly has a guide component which has a previously mentioned rigid blocking part and the method comprises:

• - Releasing the connection between the locking member and the support bar or the connection between the locking member and the guide bar to release after translation of the assembly, the translational movement between the rigid guide bar and the support bar in the longitudinal direction of the guide bar.

This variant of the method relates in particular to an assembly which has a plurality of support strips on the guide beam which are arranged at a distance from one another in the longitudinal direction.

This process development is particularly advantageous if translation degrees of freedom are to be blocked during installation of the assembly in a foundation in order to avoid undesired movements. After the foundation has hardened, desired movements of support bars relative to the guide bar and thus movements of the guide bar relative to the foundation may be released at desired locations.

• 1 ein Koordinatenmessgerät mit einem erfindungsgemäßen Führungsbauteil;
• 2 ein erfindungsgemäßes Führungsbauteil in einer seitlichen Ansicht;
• 3 ein erfindungsgemäßes Führungsbauteil in einer Ansicht entlang der Längsachse;
• 4 eine erfindungsgemäßes Führungsbauteil in Auslenkung in einer seitlichen Ansicht;
• 5 eine Befestigung und Lagerung der Tragleiste des Führungsbauteils in einem Fundament einer Maschine;
• 6a, b eine Lagerung der Tragleiste als Loslager oder Festlager;
• 7a, b alternative Ausführungsformen eines Führungsbauteils, wobei b erfindungsgemäß ist.

The invention will be described below with reference to exemplary embodiments. Show it:

• 1 a coordinate measuring machine with a guide component according to the invention;
• 2 an inventive guide member in a side view;
• 3 an inventive guide member in a view along the longitudinal axis;
• 4 an inventive guide member in deflection in a side view;
• 5 an attachment and storage of the support bar of the guide member in a foundation of a machine;
• 6a, b a storage of the support bar as a floating bearing or fixed bearing;
• 7a, b alternative embodiments of a guide member, wherein b is according to the invention.

In 1 is a coordinate measuring machine 1 shown. The coordinate measuring machine 1 includes a measuring table 6 and a mechanics 12 , about which a sensor shown here only schematically 4 in three coordinate directions X . Y . Z is movably mounted. The mechanic 12 this includes a stand 2 that's along the measuring table 6 displaceable in a horizontal direction on a guide bar 8th is stored. The guide bar 8th is located below cover plates 9 . 11 , The stand 2 Here is a drive, not shown, which is also below the cover plates 9 . 11 located in a first horizontal direction ( X Direction) oriented in the plane of the drawing and parallel to a central longitudinal axis of the guide bar 8th oriented, driven. Along the stand 2 is in the vertical direction ( Z Direction) a cross slide 10 slidably mounted. Along this cross slide 10 is again in another horizontal direction ( Y Direction) a measuring arm 3 slidably mounted. Both the cross slide 10 as well as the measuring arm 3 are driven by not shown drives. The directions of movement of the stand 2 , the cross slide 10 and the measuring arm 3 are each perpendicular to the other two directions of movement, so thereby in each of the coordinate directions X . Y . Z there is a direction of movement. Here is the coordinate measuring machine 1 in a soil 5 integrated. Shown is further a foundation 7 , The guide bar 8th Here is a storage and anchoring element 13 on the foundation 7 stored.

In 2 is a more detailed side view of the guide bar 8th shown. The guide bar 8th is designed as a rigid closed box, with the side wall 14 , the upper wall 15 , with an interrupted bar on it 16 , as well as the lower wall eighteen , Not to be seen is another sidewall 19 , but in the following 3 is shown.

At the desired erection points, the bottom wall 13 interrupted and it will be in the manner shown below, a break points support bars 22 integrated, which are connected elastically. It is thus already in the welding part, as which of the guide bar 8th is executed with its walls, a length compensation element integrated in the form of a Biegeparallelogramm, in 2 shown from the side. This parallelogram has two elastic intermediate elements 20 . 21 on, which are designed as elastic, bendable steel sheets. These steel sheets 20 . 21 are at their top with the guide bar 8th welded. In this example, the steel sheets 20 . 21 at connecting bridges 24 . 25 welded, which in turn are rigid and with the upper wall 15 are welded. The undersides of the two steel sheets 20 . 21 are with the support bar 22 welded, at which the bearing and anchoring element 13 is appropriate. The bending parallelogram is thus made of the two sheets 20 . 21 , the carrying bar 22 , the lugs 24 . 25 and a section of the upper wall 15 , between the two connecting bridges 24 . 25 formed, with a bend only in the stable sheets 20 . 21 takes place as elastic intermediate elements. The support bar 22 So only by the elastic intermediate elements or steel sheets 20 . 21 tethered. Otherwise, there is no further connection from the support bar 22 to remaining parts of the guide bar 8th , Due to the bendability and elasticity of the steel sheets 20 . 21 is the support bar 22 relative to other parts of the guide beam 8th in X Direction or contrary to X Direction, which also called X Direction is called, movable.

In 3 is a look towards the X Axis shown. You can see another storage and anchoring element 26 that a support bar 22 is attached. There are also two more bars 27 . 28 on the upper wall 15 of the guide bar 8th to see. The strips 16 . 27 . 28 serve as support strips for a walk-through cover of the guide bar 8th which is not shown here.

4 shows a longitudinal extension of the guide bar 8th in X -Direction. It can be clearly seen that the total deformation is due to the longitudinal expansion of the beam in X Direction in the previously described Biegeparallelogramm, namely by bending the steel sheets 20 . 21 , takes place. The guide bar 8th itself stays straight in its structure. In 4 Two of the parallelogram flexures are shown, each with steel sheets 20 . 21 and a support bar 22 , You can also see clearly that the bottom wall eighteen the box-shaped structure of the supporting beam 8th interrupted at the points where support bars 22 in over the steel sheets 20 . 21 are connected. Furthermore, the lower wall eighteen hole-shaped recesses 29 on. It can also be seen that the previously mentioned last 16 . 27 . 28 are interrupted.

Not shown in 4 the storage and anchoring elements 13 . 26 via which a connection of the stringers 8th to the foundation 7 he follows

The storage and anchoring element 13 gets closer by 5 described. As can be seen herein, the foundation points 7 on the also the measuring table 6 ( 1 ), a recess in which the anchor 30 the storage and anchoring element with a potting compound 31 is cast in stable position. The recess 32 is generated here by a so-called corrugated pipe as a limitation, even before the completion of the foundation 7 was introduced into the foundation. In such Wellhüllrohren are usually made of sheet metal tubes formed, which are closed on one side, wherein the surface of the tube is wave-shaped, so that the corrugated tube as a boundary of the recess 32 good in the foundation 7 can be poured and fastened. Such Wellhüllrohre are standard elements in the construction industry and can be obtained for example in the construction trade. Alternatively, it is also possible the recesses 32 for casting the anchor later in the foundation 7 to work in, so that in this case the recesses are no longer separated from the foundation by a Wellhüllrohr.

The anchoring part 30 , hereinafter also: Anchor, is formed as shown and due to its over the entire length continuously changing cross-sectional area has the particularly advantageous property, good in the Vergießmasse 31 to anchor. The cross-sectional area is in this case designed such that the armature 30 through the positive connection with the potting compound 31 can be loaded on both train and on pressure. The end of the anchor 30 is here designed as a hexagon, so that the anchor 30 after curing of the potting compound 31 not twisted anymore. On the side of the measuring table 6 has the anchor 30 a hole with a corresponding thread, in which a threaded rod 33 is screwed in and with the anchor 30 is glued. At the other end of the threaded rod is a nut 34 attached, the attachment of the yet to be described height adjustment 35 on the threaded rod 33 serves. The height adjustment 35 is over the threaded rod 33 attached to the anchor.

The height adjustment 35 points next to said mother 34 a conical pan 36 , a spherical disk 37 , an adjusting screw 38 , a clamping sleeve 39 as well as a conical pan 40 and a spherical disk 41 on.

In the support bar is a fastener 42 provided in the form of a bore with internal thread, in which the bearing and anchoring element 13 is screwed.

The height adjustment of the bearing and anchoring element 13 is not described here in detail and takes place as in the patent application EP 0919763 A1 based on the local 2 described that an identical bearing and anchoring element 13 as in the present 5 shows.

In the following, an inventive method for fixing the assembly will be explained. The assembly, already explained in the 2 and 3 , is formed from the guide bar 8th with the support bar 22 and the intermediate elements 20 . 21 as well as the bearing and anchoring element 13 ,

The storage and anchoring element 13 is in the in the support bar 22 formed fastener 42 mounted, which is in the form of a bore with internal thread. The attachment is done by screwing, as in 5 shown. The thread in the hole 42 in the support bar 22 is already in the material blank for the support bar 22 manufactured so that the integrated support bar 22 , as in 2 and 3 shown after a welding a the sheets 20 . 21 and to the neck webs 24 . 25 no editing is required.

It becomes the anchorage of the anchor 30 necessary potting compound 31 in the recess 32 filled. In a next step, the anchor becomes 30 in the potting compound 31 immersed. The assembly of the adjusting element can also be made such that the armature 30 first through the hole 42 is passed through and then the adjusting screw 38 in the corresponding internal thread of the bore 42 in the support bar 22 until it is screwed in until the anchor 30 far enough into the potting compound 31 is immersed. After the potting compound 31 then cured, the height of the support bar can 22 , and with it the guide bar 8th , by turning the adjusting screw 38 be adjusted accordingly, due to the construction of the bearing and anchoring element 13 can be loaded on both pressure and on train, so that the support bar 22 So both can be raised, as well as in the direction of the foundation can be pulled.

The potting compound 31 Here is particularly advantageous an additionally swelling cement, which has the special property that it increases its volume during the curing process. This allows a secure anchoring of the anchor 30 be effected.

The 6a and 6b show an embodiment of the invention, wherein on the guide bar 8th a rigid blocking part 43 is provided in the form of a plate. In 6a is shown a fixed camp. The plate 43 is with the guide bar 8th on the side wall 19 welded, you can see the weld 44 , With the screws 45 . 46 is the plate 43 on the underlying support bar 22 screwed. In 2 are the corresponding threaded holes 47 . 48 in the support bar 22 for receiving the screws 45 . 46 shown. Through the screw connection to the locking part 43 becomes the support bar 22 fixed and can not get in anymore X Direction relative to the guide bar 8th move.

In 6b are the screws 45 . 46 removed and there are through holes 49 . 50 in the plate 43 to see. As a result, a floating bearing is made and by removing the screws 45 . 46 becomes the support bar 22 longitudinal ( X Direction) of the guide bar 8th movable again.

The fixed storage situation of 6a is made there, where a fixed point of the supporting beam 8th in a machine, in which this stringers 8th is mounted, to be produced. This fixed point is usually located near a reference point of a machine coordinate system. For several abutting guide beams 8th the fixed point is usually selected in the middle of the beam. At all other existing support rails 22 will be floating bearing according to the situation of 6b manufactured. For transport purposes and before installation of the guide bar 8th in a machine can be attached to all carrying rails 22 Fixed storage according to 6a getting produced.

In a further development of the above-mentioned method, after the installation of the guide beam in the foundation, explained with reference to 5 making connections with the screws 45 . 46 Loosened, after the assembly of the assembly the translational movement in X Direction between the guide bar 8th and the support bar 22 , and thus the translational movement of the guide bar 8th relative to the foundation 7 to release. This excludes carrying strips 22 in which an above-mentioned fixed point is selected, corresponding embodiment of 6a ,

The 7a and 7b show alternative embodiments, wherein 7b is according to the invention and 7a in combination with 7b is according to the invention. Both embodiments have in common that the guide bar 8th as a closed box from the top wall 15 , lower wall eighteen and sidewalls 14 . 19 is constructed. These walls enclose the interior 51 who also in 2 is shown with reference numeral.

The elastic intermediate elements 20 . 21 in 7a are concealed by the side walls 14,19 and substantially, ie almost completely, in the interior 51 arranged. Only there, where the elastic intermediate elements 20 . 21 on the support bar 22 are attached, they protrude into 7a very little from the interior 51 down out.

7a shows an assembly, like the previous one 2 . 3 . 4 and 6 has been described. The bottom plate eighteen indicates where the support bar is 22 is arranged to interrupt. The interruption is a bit smaller than in the 7a shown because the left part of the bottom plate shown there eighteen as far as the right part of the bottom plate eighteen to the support bar 22 zoom ranges. The interruption is only so much bigger than the support bar 22 in that the desired extent of the translational movement of the support bar 22 is made possible in the longitudinal direction. The support bar 22 juts down over the bottom plate eighteen out and out of the guide bar 8th out.

In the embodiment of the invention 7b is the support bar 22 essentially in the interior 51 arranged, in installation position of the guide beam 8th above the bottom plate eighteen , Only the anchor 30 pass through the openings 52 in the bottom plate eighteen down from the guide bar 8th out. The support bar 22 protrudes into an opening 53 in the sidewall 19 (and in a corresponding opening in the other side wall 14 ) and flush with the side walls 14 . 19 from. The opening 53 is rectangular and slightly larger than the rectangular cross section of the support bar 22 , In the 7a and 7b are like in 4 in the bottom plate eighteen even larger, circular openings 29 shown, which serve the weight reduction.

The openings 52 are sized so that the desired extent of the translational movement of the support bar 22 is made possible in the longitudinal direction. In the variant of 7b is the entire construction of elastic intermediate elements 20 . 21 and support bar 22 In essence, except for the parts of the support bar 22 in the openings 53 protrude inside the interior 51 arranged, so almost completely housed and even better protected. Also in this variant, it is possible locking parts 43 to install, as in 6a and 6b shown. The support bar 22 in 7b has as well as the support bar 22 7a provided for threaded holes 47 . 48 on.

LIST OF REFERENCE NUMBERS

1

Machine, coordinate measuring machine

2

moving part

3

measuring arm

4

sensor

5

ground

6

measuring table

7

foundation

8th

guide beams

9

cover

10

cross slide

11

cover

12

mechanics

13

Bearing and anchoring element

14

Side wall

15

upper wall

16

strip

18

bottom wall

19

Side wall

20

elastic intermediate element, sheet steel

21

elastic intermediate element, sheet steel

22

supporting strip

24

approach jetty

25

approach jetty

26

Bearing and anchoring element

27

strip

28

strip

29

recess

30

anchor

31

potting compound

32

recess

33

threaded rod

34

mother

35

height adjustment

36

conical seat

37

Kugelscheibe

38

adjusting screw

39

clamping sleeve

40

conical seat

41

Kugelscheibe

42

Fastening element, bore with internal thread

43

Locking part, plate

44

Connection, weld

45

screw

46

screw

47

threaded hole

48

threaded hole

49

Through Hole

50

Through Hole

51

inner space

52

opening

53

opening

Claims (13)

Guide member for guiding a movement of a movable part (2) of a machine (1), comprising - a rigid guide bar (8) - at least one support bar (22) over which the guide bar (8) on a bottom on a substrate or foundation (7 ) and the at least one elastically bendable intermediate element (20, 21) is coupled to the rigid guide beam (8), wherein - the support strip (22) at least one fastening element (42) for fastening a bearing and anchoring element (13, 26 Having on the support bar (22), - by the elastically bendable intermediate element (20, 21) a relative translational movement between the rigid guide bar (8) and the Carrying rail (22) in a longitudinal direction (X) of the guide bar is made possible - the guide bar (8) has a top wall (15), a bottom wall (18) and side walls (14,19) having a square cross-section profile with a Inner space (51) form, wherein the elastically bendable intermediate element (20, 21) is covered by the side walls (14,19), - The support strip (22) on the side of the inner space (51) at a distance from the lower wall (18) is arranged and the lower wall (18) has an opening (52) for the bearing and anchoring element (13, 26), so that the bearing and anchoring element (13, 26) through this opening (52) can penetrate the lower wall, when it is attached to the support bar (22). Guide component after Claim 1 wherein the support bar (22) is coupled via at least two elastically bendable intermediate elements (20, 21) to the rigid guide beam (8), wherein the two intermediate elements (20, 21) in the longitudinal direction (X) of the guide bar are spaced from each other. Guide member according to one of the preceding claims, wherein the support bar (22), the guide bar (8) and the intermediate element or the intermediate elements (20, 21) are made of metal. Guide component according to one of the preceding claims, wherein the guide bar (8) and the intermediate element or the intermediate elements (20, 21) are integrally connected to one another. Guide component according to one of the preceding claims, wherein the support strip (22) and the intermediate element or the intermediate elements (20, 21) are integrally connected to one another. Guide component according to one of the preceding claims, wherein the intermediate element (20), or the intermediate elements (20, 21), is / are formed as an elastically bendable plate or as a bendable strip which transversely to the longitudinal direction (X) of the guide bar (8) is / are. Guide member according to one of the preceding claims, wherein the fastening element (42) is an opening into which the bearing and anchoring element (13) can be introduced and fixed, so that the bearing and anchoring element (13) with an anchoring part (30) on the Bottom protrudes from the guide member. Guide member according to one of the preceding claims, comprising a rigid locking member (43) with which the relative translational movement between the rigid guide bar (8) and the support bar (22) can be blocked, wherein the locking member has a connection (44) to the rigid guide bar (8 ) and having a connection (45, 46) to the support bar, and wherein one of the connections (44 or 45, 46) is releasable to release the translational movement. Guide component after Claim 1 , wherein the lower wall (18) is interrupted at one or more points, wherein at a point of interruption in each case a support strip (22) is arranged. Assembly comprising a guide member according to one or more of Claims 1 - 9 and at least one bearing and anchoring element (13, 26) which is fixed to the support bar (22) of the guide member. Machine (1), in particular coordinate measuring machine, comprising an assembly according to Claim 10 , wherein the guide member via the bearing and anchoring element (13, 26) is anchored in a foundation (7). Method for fastening an assembly according to Claim 10 in a foundation (7), comprising - pouring a potting compound (31) into a foundation opening (32) - introducing an anchoring part (30) of the bearing and anchoring element (13, 26) into the foundation opening - curing the potting compound (31) for attachment of the assembly. Method according to Claim 12 , wherein the assembly according to a guide member Claim 8 and the method comprises: releasing the connection (45, 46) between the locking part (43) and the support bar (22) or the connection (44) between the locking part and the guide bar in order, after fixing the assembly, to translate between the rigid guide bar (8) and the support bar (22) in the longitudinal direction (X) of the guide bar (8) release.

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