Assembly platform and assembly station

Abstract

The invention relates to an assembly platform (11) for mounting a rectangular wooden frame comprising several frame beams and support beams, wooden beams and several wooden rods, - with a base frame (12) having a frame front (13) for positioning the wooden beams, - with a beam holder (14) for aligning and fixing the wooden beams abutting the frame front (13) in predetermined positions, such that the wooden beams fixed in the predetermined positions can be fastened to one another, - with a rod guide (15) for aligning and guiding the wooden rods when passing the wooden rods through through openings in the support beams and when inserting the wooden rods into end openings of at least one frame beam.

Description

The present invention relates to a mounting platform for mounting a rectangular wood frame for a building element. The invention also relates to an assembly station equipped with at least one such assembly platform.AT 510 797 A1 discloses a structural element of wood frame construction, in which a wood frame is formed from web supports, into which prefabricated straw bales are clamped as insulating material and cast with a hardening clay mass. For this purpose, use is made of straw bales prestressed with strings, in which the strings are removed after insertion into the wood frame, so that the prestressed straw can expand and contact the web carriers. For high thermal insulation, the straw bales are inserted into the wood frame such that a straw direction of the straw in the straw bales runs parallel to the frame plane. Adequate stability is achieved in the known structural element by means of a diagonal formwork made of wood boards fastened to the web supports.AT 000722 U1 discloses a manufacturing apparatus for manufacturing a wood carrier comprising interconnected wood elements. The production device has a press stand with support surfaces for the wood elements and a press device with an adjustable pressure element which is movable at an angle of 90° with respect to the support surface.DE 20 2009 002 437 U1 discloses an assembly device for the assembly of wall elements in timber frame or stand house construction. The mounting device has a grid-shaped mounting wall which is arranged with a slight inclination with respect to the vertical and on which parts of the wall elements to be produced can be placed and put together for processing.WO 96 / 05 036 A1 discloses a production plant for producing a raw profile from bar- or board-shaped slats. The production plant comprises a pressing device with a plurality of clamping devices and clamping drives.DE 10 2023 211 651 A1 discloses a modular structural element for erecting walls of a building, which structural element has a rectangular wood frame in which compartments filled with straw are formed.Such a wood frame has a width direction, a height direction and a depth direction which are perpendicular to each other. For erecting a wall of a building, the structural element created with the aid of the wood frame is positioned such that the wood frame is arranged upright in this case. With the wood frame arranged upright, the width direction and the depth direction run horizontally, while the height direction runs vertically. The wood frame has a plurality of straight wood beams which, when the wood frame is arranged in a vertical position, comprise two outer horizontal frame beams which form an upper frame beam and a lower frame beam of the wood frame, and two outer vertical frame beams which form a left frame beam and a right frame beam of the wood frame and which are supported on the two horizontal frame beams. In particular, the timber beams can also form at least one and preferably a plurality of inner vertical support beams which are arranged between the vertical frame beams and are supported on the horizontal frame beams. The wood beams or the frame beams determine a frame width measured in the width direction, a frame depth measured in the depth direction, and a frame height of the wood frame measured in the height direction. The respective wood frame also has a plurality of straight wood bars which, when the wood frame is arranged in a upright position, extend horizontally from the one vertical frame beam, for example from the left frame beam, through the supporting beams to the other vertical frame beam, for example to the right frame beam, and which form a plurality of compartments in the respective wood frame. These compartments are each bounded in a vertical position by the upper frame beam or by at least one of the wood bars, in a downward direction by the lower frame beam or by at least one of the wood bars, in a leftward direction by the left frame beam or by one of the support beams and in a rightward direction by the right frame beam or by one of the support beams. In the wood frame, the wood bars are inserted with their ends into end openings which are formed in the respective vertical frame beam, that is to say in the left and right frame beams, and are passed through through openings which are formed in the support beams. The end openings can be designed as blind holes or likewise as through-openings.In order to be able to produce a building comparatively inexpensively with the aid of such structural elements, it is necessary to be able to produce the structural elements and in particular the associated wood frames themselves as economically as possible and with high quality and precision.The present invention addresses the problem of demonstrating a way for the production of such wood frames which is distinguished in particular by an inexpensive production with high quality and dimensional accuracy.This problem is solved by the subject matter of the independent claim. Advantageous embodiments are the subject of the dependent claims.The invention is based on the general idea of aligning the beams on the mounting platform relative to each other in such a way that they assume the positions which they are to assume in the finished wood frame. Wood is a natural product, so that the wood beams produced therefrom can warp at varying temperature and humidity. By aligning the beams, it is possible in particular to align the openings, i.e. the end openings and the through openings, which are formed for the respective wood bar in the left frame beam, in the right frame beam and in the support beams, congruently with one another in such a way that they follow one another congruently in the width direction in a straight line, so that the respective wood bar can be passed through the through openings in its longitudinal direction of the bar in the width direction and inserted into the openings. For improved assembly of the wood bars, it is also proposed to align and guide them with respect to the openings.More specifically, the invention proposes a mounting platform comprising a base frame, a beam support and a rod guide. The base frame has a frame front side for placing the timber beams, which form the horizontal frame beams, the vertical frame beams and the support beams on the finished timber frame. The beam holder is configured to align and fix the timber beams abutting the frame front side in predetermined positions such that the timber beams fixed in the predetermined positions form the horizontal frame beams, the vertical frame beams and the support beams on the finished timber frame such that the timber beams fixed in the predetermined positions are attachable to each other. In other words, the beam holder enables positioning and fixing of the wood beams relative to one another in a spatial arrangement, which the wood beams also have in the finished wood frame. The bar guide is configured to align and guide the wood bars when passing the wood bars through the through openings of the support beams and when inserting the wood bars into the end openings of the respective vertical frame beam. This simplifies the assembly of the wood bars. The wood bars can also warp as the humidity and temperature vary. For a high stability of the wood frame, it has proven to be advantageous if the wood bars have a non-round bar cross section. Thus, wood bars with a rectangular, preferably square, bar cross section are preferably used in the case of the wood frame. Accordingly, the passage openings adapted thereto and the end openings can also have a round or non-round, in particular rectangular or square, opening cross section matching the rod cross section. For a square rod cross-section, a matching circular opening may have a diameter that substantially corresponds to the diagonal of the square rod cross-section. In order to be able to introduce or pass these non-round wood bars into the matching round or non-round openings, a precise alignment and guidance of the wood bars with respect to the openings is of enormous advantage. The mounting platform presented here enables automated production of the wood frames with high production quality, which is distinguished in particular in a high dimensional accuracy with comparatively close tolerances.In the present context, a "configuration" is synonymous with a "configuration" and / or "device" and / or "programming", such that the phrase "configured such that" is synonymous with the phrase "configured and / or configured and / or programmed such that".The base frame defines a longitudinal direction, a transverse direction and a normal direction which run perpendicular to one another. The longitudinal direction and the transverse direction span a plane to which the frame front side extends parallel. The frame front side is facing away from a frame rear side in the normal direction, which runs perpendicular to the mentioned plane. The wood frame can be assembled upright or lying on the base frame. When the wood frame is arranged lying on the base frame, the height direction coincides with the longitudinal direction, the width direction coincides with the transverse direction and the depth direction coincides with the normal direction. When the wood frame is arranged upright on the base frame, the height direction coincides with the transverse direction, the width direction coincides with the longitudinal direction, and the depth direction coincides with the normal direction.According to an advantageous embodiment, the mounting platform can have a lifting device which is configured such that, when the wood beams are fastened to one another and the wood rods are fastened to the wood beams and when the beam holder has released the wood beams, it can adjust the wood frame relative to the frame front side of the basic frame, such that the wood frame is lifted from the frame front side in the depth direction and can be removed from the basic frame transversely to the depth direction, that is to say in particular in the height direction and / or in the width direction. The lifting device thus simplifies the removal of the finished wood frame from the base frame and thus from the mounting platform.According to an advantageous development, the lifting device can have at least one excavation beam and at least one lifting drive for adjusting the excavation beam relative to the base position in the depth direction of the wood frame between an installation position and a transfer position. Advantageously, at least two such excavation beams can be provided, which are expediently adjustable synchronously. In this case, the respective excavation beam is arranged in the mounting position on the frame front side such that the wood beams can be placed, aligned and fixed on the frame front side. In other words, the respective excavation beam is configured such that, in the assembly position, it does not obstruct the placement, alignment and fixing of the wood beams. In the transfer position, the respective excavation beam is lifted from the frame front side in the depth direction to such an extent that the wood frame comes free from the beam holder and from the rod guide in the depth direction, so that the wood frame can be removed from the base frame transversely to the depth direction. The respective lifting drive can be expediently fastened to the base frame. Advantageously, two lifting drives, for example in the form of pneumatic or hydraulic piston-cylinder units, can be provided for each excavation beam, which are arranged spaced apart from one another in the longitudinal direction of the excavation beam and cooperate with the excavation beam, in particular outside the timber frame.According to an advantageous development, the lifting device can optionally have at least one slide and a slide drive for adjusting the slide relative to the base position transversely to the depth direction of the wood frame between an assembly position and a transfer position. Expediently, at least two such slides can be provided, which are expediently adjustable synchronously. In this case, the respective slide is arranged in its mounting position on the frame front side such that, on the one hand, the wood frame can be mounted undisturbed and, on the other hand, the mounted wood frame is transferred by the respective excavation beam in its transfer position to the slide or slides. As a result, the respective carriage can adjust, in particular raise or lower, the wood frame transversely to the depth direction relative to the base frame.According to an advantageous embodiment, the beam holder for a plurality of wood beams can have a plurality of pressing elements on the frame front side, which pressing elements can be adjusted between a fixing position and a release position, and a plurality of abutment elements. In the release position, the pressing elements make it possible to put the wooden beams against the frame front side and against the abutment elements. When adjusting from the release position into the fixing position, the pressing elements press the respective wood bar against the abutment elements and thereby bring about the alignment and fixing of the respective wood bar in the predetermined position on the base frame. When adjusting from the fixing position into the release position, the pressing elements release the wooden beams and allow the mounted wooden frame to be lifted off the base frame in the depth direction, in particular with the aid of the lifting device. By pressing the wood beams with the aid of the pressing elements against the abutment elements, a distortion of the wood beams can be corrected, for example.All the pressing elements which follow one another in the transverse direction together form a pressing strand. All the abutment elements which follow one another in the transverse direction form an abutment strand. The beam holder has a plurality of pressing strings and a plurality of abutment strings adjacent in the longitudinal direction.According to an advantageous development, the beam holder can be configured for the synchronous adjustment of all pressing elements of such a pressing strand between the release position and the fixing position. For example, the beam holder can have for this purpose a holder linkage which is drive-connected to all pressing elements of such a pressing string, and a holder drive which is drive-connected to the holder linkage, so that all pressing elements of the respective pressing string can be adjusted synchronously between the release position and the fixing position by the holder drive via the holder linkage. This ensures that all the wooden beams can be arranged on the base frame first and then aligned synchronously with the base frame and with one another and fixed synchronously on the base frame via the beam holder.According to an expedient development, the mounting linkage can be arranged on a rear side of the base frame facing away from the front side of the frame, wherein the base frame has a bearing plane which is located between the front side of the frame and the rear side of the frame and on which the pressing elements are mounted in a rotationally adjustable manner. The pressing elements penetrate the bearing plane and are drivingly connected to the mounting linkage at the rear side of the frame. In this way, comparatively many pressing elements can be provided on the frame front side for aligning and fixing a correspondingly large number of wood beams, which are drivingly connected to one another and to the mounting drive on the frame rear side via the common mounting linkage.The bearing plane can have a plurality of bearing plates on which at least one of the pressing elements is mounted in each case in a rotationally adjustable manner and on which at least one of the abutment elements is arranged in each case. The bearing plates are fastened to the base frame. In this case, the storage plates can be arranged and fastened to the base frame in a checkerboard manner. Such bearing plates simplify the construction of the holding device on the base frame. By using such bearing plates to realize the layer plane, the mounting platform can be scaled up as desired, as a result of which it is possible in a particularly simple manner to adapt the mounting platform for timber frames of different sizes.According to an advantageous embodiment, it can be provided that the pressing elements and the abutment elements are configured for aligning the vertical frame beams and the vertical support beams parallel to one another and for positioning at a predetermined horizontal distance from one another.An embodiment is now particularly advantageous in which the beam holder has an alignment device which has on the frame front side a mobile alignment unit which is adjustable relative to the base frame in the height direction of the wood frame or in the longitudinal direction of the base frame and a stationary alignment unit which is arranged in a fixed manner on the base frame. Furthermore, the alignment device can now be configured for aligning the vertical frame beams and the vertical support beams relative to the horizontal frame beams. In this case, the mobile alignment unit presses one horizontal frame beam against the vertical frame beams and the vertical support beams and presses these against the other horizontal frame beam, which is pressed against the stationary alignment unit, on which it is then supported.The alignment of the vertical frame beams and the vertical support beams with respect to the horizontal frame beams can be effected expediently as long as the pressing elements are still adjusted into their release position. Alternatively, in another embodiment, it can be provided that the pressing elements, the abutment elements and the alignment device are matched to one another in such a way that the alignment device can carry out the alignment of the vertical frame beams and the vertical support beams relative to the horizontal frame beams, while the pressing elements are adjusted into their fixing position. In other words, the alignment device is configured such that it can overcome the holding force in the longitudinal direction with which the pressing elements press the vertical frame beams and the vertical support beams in the transverse direction against the abutment elements. This ultimately achieves the effect that the pressing elements with the abutment elements carry out a transverse alignment of the vertical frame beams and the vertical support beams, while the alignment device carries out a longitudinal alignment of the vertical frame beams and the vertical support beams.According to an advantageous embodiment, it can be provided that the rod guide has a plurality of guide elements and a plurality of closing elements for each wood rod. The guide elements are adjustable between a guide position and a release position and have the guide contour which is open for the respective wood bar at least transversely to the bar longitudinal direction. The closing elements are adjustable between a closed position, in which they close the guide contours of the guide elements adjusted into the guide position transversely to the rod longitudinal direction, and an open position, in which they open the guide contours of the guide elements adjusted into the guide position transversely to the rod longitudinal direction. The closed guide contours have a guide cross section which is formed complementary to the rod cross section and which can be in particular rectangular and preferably square. Furthermore, the guide elements and the closing elements can be matched to one another such that, in the guide position of the guide elements and in the closed position of the closing elements, the guide contours are aligned congruently in the longitudinal direction with the through-openings and the end openings of the vertical frame beams aligned and fixed on the frame front side, wherein at the same time the wood bars are held in the guide contours transversely to the bar longitudinal direction and are guided in the bar longitudinal direction. Thus, in the guiding position of the guide elements and in the closing position of the closing elements, the wood bars can be guided through the through-openings and introduced into the end openings. In the release position of the guide elements, the respective guide contour is arranged outside the respective wood bar and releases the respective wood bar in the depth direction, so that a mounted wood frame can be lifted from the base frame in the depth direction, in particular with the aid of the lifting device. In this way, after passing the wood bars through the through-openings and after inserting the wood bars into the end openings and after fixing the wood bars to the wood beams, the completely assembled wood frame can be removed from the base frame.All closing elements that are adjacent in the transverse direction form a closing strand. A plurality of closing strands are adjacent in the longitudinal direction.According to an advantageous development, the rod guide can be configured for the synchronous adjustment of all closing elements of one of the closing strands between the open position and the closed position. For this purpose, the rod guide can have a guide linkage which is drive-connected to all closing elements of one of the closing strands, and a guide drive which is drive-connected to the guide linkage, so that all closing elements of the respective closing strand can be adjusted synchronously between the open position and the closed position by the guide drive via the guide linkage. This simplifies the assembly of the wood bars.Expediently, the guide linkage can be arranged on a rear side of the frame facing away from the front side of the frame. The base frame has a bearing plane which is located between the front side of the frame and the rear side of the frame and on which the closing elements are mounted in a rotationally adjustable manner. The closing elements can penetrate the bearing elements and be drivingly connected to the guide linkage at the rear side of the frame. Here too, a spatial separation is created between the functional components of the bar guide and the drive of the functional components, which provides sufficient working space on the frame front side for handling the wood bars and wood beams. Here too, the bearing plane can be formed with the aid of a plurality of bearing plates. At least two closing elements can be mounted on at least one such bearing plate in a rotationally adjustable manner. The bearing plates can also be fastened to the base frame here.An embodiment is particularly advantageous in which the bearing plates on which the closing elements are rotatably arranged are formed by the same bearing plates which have been mentioned further above and on which in each case one of the pressing elements and one of the abutment elements is arranged. Accordingly, two of the closing elements, one of the abutment elements and one of the pressing elements, can be arranged on the respective bearing plate.According to an advantageous embodiment, the respective guide element can have at least two such guide contours which are spaced apart from one another in the depth direction. Expediently, the respective closing element can be configured such that in the closed position it closes the at least two guide contours transversely to the rod longitudinal direction and in the open position it opens the at least two guide contours transversely to the rod longitudinal direction. In particular, the respective guide element can thereby be configured for the simultaneous alignment and guiding of at least two wood bars which are adjacent in the depth direction. By providing a plurality of guide contours which can be opened and closed with the aid of the same closing element, it is possible to preset at least two different positions with respect to the depth direction for the wood bars and / or to preset an associated position with respect to the depth direction for at least two wood bars. Accordingly, with the aid of the bar guide, different wood frames can be realized, in which a plurality of wood bars are arranged adjacently in the depth direction in order to form the compartments. Likewise, different wood frames can be produced on the same mounting platform, which differ from one another, for example, by the frame depth measured in the depth direction. A different frame depth also results in a different position of the wood bars with respect to the frame depth.According to a particularly advantageous embodiment, it can now be provided that the guide elements of the rod guide are formed by the pressing elements and the abutment elements of the beam holder. For this purpose, the guide contours of the guide elements are formed on the pressing elements and on the abutment elements in such a way that the fixing position of the pressing elements simultaneously forms the guide position of the guide elements. Moreover, it can be provided for this purpose that the abutment elements are adjustable between the guide position and the release position, wherein the abutment elements serve as abutments for the wood beams both in the guide position and in the release position, which abutments are or are pressed against the abutment elements with the aid of the pressing elements. This results in an extreme simplification for the mounting platform.According to an advantageous embodiment, it can be provided that the closing elements of the rod guide form first closing elements and second closing elements. The first closing elements cooperate with the guide contours formed on the pressing elements, while the second closing elements cooperate with the guide contours formed on the abutment elements. This measure also simplifies the construction of the mounting platform, so that a comparatively large amount of space is available on the front side of the frame for handling the beams and wood bars.According to an advantageous embodiment, it can be provided that the pressing elements can be adjusted into an intermediate position lying between the fixing position and the release position, in which intermediate position the wood beams are released in the depth direction, but the wood bars are still held in the depth direction by the guide contours. Optionally, the abutment elements can also be adjusted into an intermediate position lying between the guide position and the release position, in which intermediate position the wood bars are held in the depth direction by the guide contours. The intermediate position of the abutment elements is not absolutely necessary if the abutment elements are adjustable separately from the pressing elements. Expediently, however, the holding drive is configured such that it can adjust the pressing elements and the abutment elements synchronously. Thus, by means of the holding drive, on the one hand the pressing elements are adjusted between the release position and the fixing position and, on the other hand, synchronously thereto the abutment elements are adjusted between the open position and the closed position. When the pressing elements are adjusted into their intermediate position, the abutment elements are then simultaneously also adjusted into their intermediate position. It is important here that even in the intermediate position of the abutment elements the wood bars are still held and thus guided in the depth direction by the guide contours.The intermediate position of the pressing elements can be used in particular to attach a further wood bar without losing the alignment and fixing of the remaining wood bars and wood bars.An assembly station according to the invention is configured for the assembly of wood frames for structural elements and is equipped for this purpose with at least one assembly platform of the type described above. Moreover, the mounting station may be equipped with at least one mounting robot for placing the timber beams, for fastening the timber beams to each other, for inserting the timber rods and for fastening the timber rods to the timber beams. Such an assembly station can form, for example, one of a plurality of production stations of a production line for producing the components.According to an advantageous embodiment, the respective mounting platform can be arranged in the mounting station such that the frame front side lies in a mounting plane which is inclined in a range from 5° to 45° with respect to a vertical direction. The mounting plane is inclined with respect to the vertical direction in particular by at least 10°, preferably by at least 15°, preferably by at least 20°, preferably by at least 25°. The mounting plane is inclined with respect to the vertical direction in particular by a maximum of 40°, preferably by a maximum of 35°, preferably by a maximum of 30°, preferably by a maximum of 25°. Preferably, the inclination between the mounting plane and the vertical direction may be in a range of 20° to 30°. This measure allows the range of the assembly robot to be optimally utilized.In an advantageous embodiment, it can be provided that the respective mounting platform is arranged in the mounting station such that the wood frame is mounted horizontally. When the wood frame is arranged horizontally, the wood frame is rotated through 90° about an axis of rotation running parallel to the depth direction. The lying timber frame lies on the left frame beam or on the right frame beam. In contrast, the upright wood frame stands on the lower frame beam or, when the wood frame stands on the head, on the upper frame beam. When the wood frame is arranged horizontally, the width direction of the wood frame in the mounting station extends in a vertical plane, while the height direction of the wood frame in the mounting station extends in a horizontal plane. It has been found that when the wood frame is mounted in the horizontal position, the force of gravity can be used to support and simplify the mounting, since the wood bars can then be passed through the through-openings virtually from top to bottom and can be introduced into the end openings of the left frame beam or of the right frame beam from above. This results in a significant simplification of the production. At the same time, the horizontal space requirement of the mounting station is significantly reduced as a result.According to another advantageous embodiment, the mounting station can have two such mounting platforms and two such mounting robots. In addition, the mounting station can have a bogie for receiving the two mounting platforms, which bogie is rotatable by at least 180° about a vertical axis of rotation and which is arranged between the two mounting robots. Thus, two wood frames can be produced simultaneously with the aid of the assembly station. At the same time, the assembly station requires hardly any more horizontal installation space.A configuration is particularly advantageous in this case in which the mounting station has a mounting controller which is coupled to the bogie, the mounting platforms and to the mounting robots and which is also configured such that the wood frames are produced according to a four-cycle process. In other words, the mounting controller is configured to perform a four-cycle process for manufacturing the wood frames.In a first cycle of the four-cycle process, in particular the one or first assembly robot is controlled in such a way that it attaches the upper frame beam, the lower frame beam and the support beams and at least one frame beam of the left and right frame beams, namely either only the left frame beam when the wood frame is constructed lying on the left frame beam or only the right frame beam when the wood frame is constructed lying on the right frame beam, or both, that is to say both the left frame beam and the right frame beam, to the respective assembly platform. If the end openings are configured as through openings in the left frame beam and / or in the right frame beam, both the left frame beam and the right frame beam can be attached to the respective mounting platform. If, on the other hand, the end openings in the left frame beam and in the right frame beam are each configured as blind holes, only one of these two beams, i.e. either the left frame beam or the right frame beam, is attached to the mounting platform.In a second cycle of the four-cycle process, in particular the other or second assembly robot is controlled in such a way that it passes the wood bars through the through-openings of the supporting beams and introduces them into the end openings of at least one frame beam of left and right frame beams. If the end openings in a frame beam of left and right frame beams are configured as through-openings, the wood bars can also be guided through these through-openings.In a third cycle of the four-cycle process, in particular the first assembly robot is controlled in such a way that it optionally arranges the other of the left and right frame beams on the upper frame beam and on the lower frame beam, in such a way that the wood bars are introduced into the end openings of this frame beam. This assembly step can of course be omitted if both the left and right frame beams have already been attached beforehand in the first cycle. In the third cycle, in particular the first assembly robot is controlled in such a way that it fixes the wooden beams to one another. For this purpose, the first assembly robot can be equipped, for example, with a nailing machine which hammers or injects nails of corresponding dimensions into the wood beams in order to thus fasten the wood beams to one another.In a fourth cycle of the four-cycle process, in particular the second assembly robot is controlled in such a way that it fixes the wood bars to the wood beams. In addition, in the fourth cycle, the mounted wood frame is removed from the mounting platform. The second assembly robot can be equipped, for example, with a nailing machine which hammers or injects nails of corresponding dimensions into the wood bars and wood beams, in order thereby to fasten the wood bars to the wood beams.According to another embodiment, the mounting controller may also be configured to control the two mounting platforms, the two mounting robots and the bogie according to a working method in four successive and repeating working steps such that two timber frames are simultaneously mounted according to the four-stroke process, but offset from one another by one stroke. As a result, twice as many wood frames can be mounted in the same period of time. For example, it can be provided for this purpose that in a first rotational position of the bogie the first mounting platform faces the first mounting robot, while the second mounting platform faces the second mounting robot. In a second rotary position of the bogie adjusted by 180° with respect to the first rotary position, the first mounting platform then faces the second mounting robot, while the second mounting platform faces the first mounting robot. It can now be optionally provided that the first mounting robot is configured to operate according to the first cycle and according to the third cycle, while the second mounting robot is configured to operate according to the second cycle and according to the fourth cycle. This allows the one mounting method to be realized with four working steps described below.In a first working step, the first rotational position is present and the first mounting robot operates on the first mounting platform according to the first cycle and positions the wood beams, if appropriate, apart from one of the frame beams, while the second mounting robot operates on the second mounting platform according to the fourth cycle and fixes the wood rods to the wood beams and subsequently the finished wood frame is removed from the second mounting platform.In a second working step, the second rotational position is present and the first mounting robot now works on the second mounting platform according to the first cycle and positions the wood beams for a further wood frame, while the second mounting robot works on the first mounting platform according to the second cycle and uses the wood rods.In a third working step, the first rotational position is again present and the first mounting robot operates on the first mounting platform according to the third cycle and, if appropriate, attaches the missing frame beam and fixes the wood beams to one another, while the second mounting robot operates on the second mounting platform according to the second cycle and inserts the wood rods on the wood frame there.In a fourth working step, the second rotational position is again present. The first mounting robot operates on the second mounting platform according to the third cycle and, if appropriate, attaches the missing frame beams and fixes the wood beams to one another, while the second mounting robot operates on the first mounting platform according to the fourth cycle and fixes the wood rods to the wood beams, and then the finished wood frame is removed from the second mounting platform.After the fourth working step, the assembly process repeats and begins again with the first working step.If the respective wood frame is to be equipped with a door opening and / or with a window opening, the fourth working step can be followed by further assembly steps which can be carried out outside the assembly platform. It is likewise conceivable to integrate these additional assembly steps into the first and / or fourth working step.The end openings are preferably configured as blind holes on the left frame beam and on the right frame beam, so that it is necessary for the mounting of the wood bars to arrange all the wood beams on the base frame except for one of the left and right frame beams, so that the wood bars can be passed through all the through openings of the support beams from the missing frame beam and can be introduced into the end openings of the left frame beam or right frame beam arranged on the base frame. Subsequently, the missing right or left frame beam can be mounted, wherein the wood bars are inserted into the end openings of this right or left frame beam. In another embodiment, it can be provided that at least on one frame beam of left and right frame beams, the end openings are also configured as through openings, so that it is possible to arrange all the timber beams on the base frame, in order then to pass the timber rods through the end openings, configured as through openings, of the one frame beam of left and right frame beams and through the through openings of the support beam and to insert them into the end openings of the other frame beam of left and right frame beams, which can be configured as blind hole openings or likewise as through openings.Further important features and advantages of the invention are evident from the dependent claims, from the drawings and from the associated description of the figures with reference to the drawings.It is understood that the features mentioned above and those still to be explained below can be used not only in the respectively specified combination, but also in other combinations or alone, without departing from the scope of the invention as defined by the claims. The above-mentioned components of a superordinate unit, such as a device, a device or an arrangement, which are designated separately, can form separate components or components of this unit or can be integral regions or sections of this unit, even if this is illustrated differently in the drawings.Preferred exemplary embodiments of the invention are illustrated in the drawings and are explained in more detail in the following description, wherein the same reference numerals refer to the same or similar or functionally the same components.They show, in each case schematically, FIG. 1 is an isometric view of a wood frame for a structural element, FIG. 2 is an isometric view of a mounting platform for mounting the wood frame, FIG. 3 shows a plan view of a detail of the mounting platform having a plurality of bearing plates in a first state, FIG. 4 is an isometric view in the area of one of the bearing plates from FIG. 3 , FIG. 5 is a top view as in FIG. 3, but in a second state, FIG. 6 is an isometric view in the area of one of the bearing plates from FIG. 5 , FIG. 7 is a plan view as in FIGS. 3 and 5, but in a third state, FIG. 8 is an isometric view in the area of one of the bearing plates from FIG. 7 , FIG. 9 shows a plan view as in FIGS. 3, 5 and 7, but in a fourth state, FIG. 10 is an isometric view in the area of one of the bearing plates from FIG. 9, FIG. 11 is an isometric view of one of the bearing plates, FIG. 12 is an isometric view of a mounting station with two mounting platforms, FIG. 13 is a view as in FIG. 12, but in a different viewing direction, FIG. 14 is an isometric view of the mounting station when removing a finished wood frame in a mounting position, FIG. 15 is a view in FIG. 14, but in a transfer position, FIG. 16 is an isometric view of the mounting platform in the region of an alignment device without a wooden beam, FIG. 17 is a view similar to FIG. 16, but with wooden beams, FIG. 18 is a flow chart of a four-clock process, FIG. 19 is a flow chart of a method of operation of the mounting station.Referring to FIG. 1, a rectangular wooden frame 1 has a width direction B, a height direction H and a depth direction T which are perpendicular to each other. In FIG. 1, the wood frame 1 is arranged upright. As a result, the height direction H runs vertically, i.e. parallel to the direction of gravity G, which is indicated by an arrow in FIG. 1. The width direction B and the depth direction T run horizontally, i.e. perpendicular to the direction of gravity G.The wood frame 1 has a plurality of straight wood beams 2 which, when the wood frame 1 is arranged upright, form two outer horizontal frame beams 3, two outer vertical frame beams 4 and a plurality of inner support beams 5. The two horizontal frame beams 3 form an upper frame beam 3o and a lower frame beam 3u. The two vertical frame beams 4 form a left frame beam 4land a right frame beam 4 r. The upper frame beam 3 ois supported via the vertical frame beams 4 and via the support beams 5 on the lower frame beam 3 u. The wood frame 1 also has a plurality of straight wood bars 6 which extend horizontally when the wood frame 1 is arranged in a vertical position. The wood bars 6 extend from one vertical frame beam 4 through the support beams 5 to the other vertical frame beam 4. These compartments 7 are delimited here upwards by the upper frame beam 3 oor by at least one of the wood bars 6, downwards by the lower frame beam 3 uor at least by one of the wood bars 6, to the left by the left frame beam 4 lor by one of the support beams 5 and to the right by the right frame beam 4 ror by one of the support beams 5. In FIG. 1, the compartment denoted by 7.1 is bounded at the top by the upper frame beam 3 o, at the bottom by two wooden rods 6, at the left by the left frame beam 4 l, and at the right by one of the supporting beams 5. The compartment denoted by 7.2 is bounded upwards and downwards by two wooden rods 6 each, bounded to the left by one of the support beams 5 and to the right by the right frame beam 4r. The compartment denoted by 7.3 is bounded at the top by two wooden rods 6, at the bottom by the lower frame beam 3u, at the left and at the right by one of the support beams 5.In the wood frame 1, the wood bars 6 are inserted with their longitudinal ends 8 into end openings 9 which are formed in the respective vertical frame beam 4. In the support beams 5, on the other hand, through-openings 10 are formed through which the wood bars 6 are guided. The inner cross sections of the end openings 9 and the inner cross sections of the through openings 10 are adapted to the outer cross sections of the wood bars 6 in such a way that a positive hold is obtained. In particular, a fit with little play or a transition fit or a fit with little press fit can be provided.The wooden frame 1 shown in FIG. 1 accordingly has four frame beams 3, 4, three support beams 5 and five pairs of two wooden bars 6 each, whereby a total of twenty-four compartments 7 are formed. In the finished wood frame 1, the wood beams 2 are fastened to one another, in particular by means of nails and / or screws and / or adhesive. In the finished wood frame 1, the wood bars 6 are fastened to the wood beams 2, in particular by means of nails and / or screws and / or adhesive.There are different variants for the structural element that can be produced with the aid of the wood frame 1, as a result of which the structural element has a modular character. In the simplest case, the structural element can form a wall module, that is to say a wall section without any opening. However, the component can also have a window module with at least one window opening or a door module with at least one door opening. Door modules are also conceivable which have both a door opening and a window opening. Two door openings or two or more window openings can likewise be provided. Accordingly, there is then also a corresponding number of different wood frames 1, which differ from one another by a different number of compartments 7. The number of compartments 7 is defined by the number of supporting beams 5 and by the number of wood bars 6. In the example of FIG. 1, the wood frame 1 has a plurality of compartment rows 58, in each of which a plurality of compartments 7 are arranged one above the other in the height direction H. In the example, four rows of compartments 58 are provided, each with five compartments 7 arranged one above the other. In all variants, the dimensioning of the compartments 7 in the width direction B and in the height direction H is preferably identical. In the example shown in FIG. 1, all compartments have the same compartment height measured in the height direction H. Within the respective row of shelves 58, all shelves 7 have the same shelf width measured in the width direction B. In this case, in the example, the compartments 7 of the two inner compartment rows 58 are wider than the compartments 7 of the two outer compartment rows 58; in FIG. 1, the upper frame bar 3 oand the lower frame bar 3 uare labeled with "535" and with "565", respectively, which can represent, purely by way of example, a compartment width of the compartments 7 of the compartment row 58 adjoining it in mm.Additional variants can be used in the depth direction T, for example for inner walls with a smaller depth and outer walls with a larger depth. The wood frame 1 shown in Fig. 1 may have the maximum number of wood beams 2 and wood bars 6. All other variants of the wood frame 1 then have fewer support beams 5 and / or fewer wood bars 6. variants of the wood frame 1 are conceivable and can be produced, for example, which have only two support beams 5 or only one support beam 5 or no support beam 5 instead of three support beams 5, so that wall modules in particular can be realized in different widths. In the case of window modules and door modules, too, at least one of the continuous support beams 5 can be dispensed with.According to FIGS. 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16 to 17, a mounting platform 11 comprises a base frame 12 which has a frame front side 13 for placing the timber beams 2, wherein these timber beams 2 then form the horizontal frame beams 3, the vertical frame beams 4 and the support beams 5 on the finished timber frame 1. The base frame 12 defines a longitudinal direction X, a transverse direction Y and a normal direction Z, which run perpendicular to one another. The longitudinal direction X and the transverse direction Y span an X-Y plane to which the frame front 13 extends parallel. The frame front side 13 faces away from a frame rear side 24 in the normal direction Z, which runs perpendicular to the X-Y plane. In other words, the base frame 12 is configured on its frame front side 13 such that all the timber beams 2 required for the production of the timber frame 1 can be placed thereon. The mounting platform 11 is also equipped with a beam holder 14 configured to align and fix the wood beams 2 abutting the frame front 13 in predetermined positions. The predetermined positions are selected such that the wood beams 2 fixed in the predetermined positions on the finished wood frame 1 form the horizontal frame beams 3, the vertical frame beams 4 and the support beams 5, wherein the wood beams 2 fixed in the predetermined positions can be fastened to one another, for example by means of nails and / or screws. Moreover, the mounting platform 11 is provided with a bar guide 15 configured to align and guide the wood bars 6 when passing the wood bars 6 through the through openings 10 of the support beams 5 and when inserting the wood bars 6 into the end openings 9 of the respective vertical frame beam 4. The wood frame 1 can be assembled upright or lying on the base frame 12. In the illustrated lying arrangement of the wood frame 1 on the base frame 12, the height direction H coincides with the longitudinal direction X, the width direction B coincides with the transverse direction Y and the depth direction T coincides with the normal direction Z.In addition, the mounting platform 11 can be equipped with a lifting device 16, with the aid of which the completely mounted wood frame 1 can be adjusted relative to the frame front 13 such that the wood frame 1 lifts from the frame front 13 in the depth direction T to the extent that it can be removed from the base frame 12 transversely to the depth direction T, that is to say in the height direction H and / or in the width direction B. For this purpose, the lifting device 16 can have at least one excavation beam 17 and a lifting drive 56 for adjusting the respective excavation beam 17 in the depth direction T relative to the base frame 12. The respective excavation beam 17 preferably extends in the longitudinal direction X at least along the entire wood frame 1 in such a way that the respective excavation beam 17 supports both horizontal frame beams 3 when the wood frame 1 is lying. As can be seen in particular from FIG. 2, a plurality of, in the example four, excavation beams 17 running parallel to the longitudinal direction X can be provided, which are connected to one another via a plurality of, in the example four, cross beams 67 running parallel to the transverse direction Y to form a grid-shaped excavation structure 68, which can be adjusted as a unit by means of the lifting drive 56. In this case, the lifting drive 56 can adjust the respective excavation beam 17 or the excavation structure 68 between an assembly position shown at least in FIGS. 2 and 14 and a transfer position shown in FIG. 15. In the assembly position, the respective excavation beam 17 or the excavation structure 68 is arranged on the frame front side 13 such that the wood beams 2 can be placed, aligned and fixed on the frame front side 13. In the transfer position, the wood frame 1 is lifted from the frame front side 13 in the depth direction T to such an extent that it comes free from the beam holder 14 and the rod guide 15 and can be removed from the base frame 12 transversely to the depth direction T.The base frame 12 is here equipped on the frame front side 13 on an edge side 18 which is located at the bottom in FIGS. 2 and 12 to 15, in addition with a plurality of retaining plates 65 and with a plurality of retaining rods 66 which are fixedly mounted on the base frame 12 and are adjacent to one another in the longitudinal direction X. The holding plates 65 and the holding rods 66 support the wood frame 1 laterally, i.e. on one of the wood beams 2. When the wood frame 1 is mounted horizontally, the wood frame 1 is supported by one of the vertical frame beams 4, for example by the left frame beam 4 lon the retaining plates 65 and the retaining rods 66. The holding rods 66 project in the normal direction Z beyond the holding plates 65, beyond the beam holder 14 and beyond the rod guide 15. An additional function of the support plates 65 and support rods 66 will be explained in more detail below with reference to FIGS. 14 and 15.According to FIGS. 3, 4, 5, 6, 7, 8, 9, 10 to 11, the beam holder 14 has a plurality of pressing elements 19 and a plurality of abutment elements 20 on the frame front side 13. The pressing elements 19 can be adjusted between a fixing position shown in FIGS. 7, 8, 9 to 10 and a release position shown in FIGS. 3, 4, 5 to 6. In FIG. 6, an adjusting movement during the adjustment of the pressing elements 19 from the release position into the fixing position is indicated by a rotation arrow 21. The pressing elements 19 enable the placement of the wood beams 2 on the frame front side 13 and on the abutment elements 20 in the release position. When the press elements 19 are adjusted from the release position into the fixing position, the pressing elements 19 press the respective wood beam 2 against the abutment elements 20 and thereby bring about the alignment and fixing of the respective wood beam 2 in the predetermined position on the base frame 12.In FIGS. 3, 4, 5 to 6, the pressing elements 19 are adjusted into the release position. As a result, according to FIG. 5, the timber beams 2 can be placed on the frame front side 13. As can be seen in FIG. 5, one of the support beams 5 extends loosely through between a respective pair of pressing element 19 and abutment element 20. The wood frame 1 is mounted on the mounting platform 11 in a suitable manner, so that the support beams 5, which run vertically when the finished wood frame 1 is arranged in a vertical position, are aligned horizontally on the mounting platform 11. After the wooden beams 2 have been placed on the base frame 12, the pressing elements 20 are transferred from the release position into the fixing position. For this purpose, the beam holder 14 can expediently be configured such that all pressing elements 19 can be adjusted synchronously between the release position and the fixing position. The pressing elements 19 are then in the fixing position according to FIGS. 7, 8, 9 to 10.For the synchronous adjustment of the pressing elements 19, the beam holder 14 can have a holder linkage 22, which is only shown in a rudimentary manner in FIG. 11 and is drive-connected to all pressing elements 19 of a pressing strand running in the transverse direction Y of the base frame 12 or in the width direction B of the wood frame 1. For example, the holding linkage 22 can be coupled to the respective pressing element 19 via a drive lever 23. The beam holder 14 also has a holder drive, not shown here, which is drive-connected to the holder linkage 22, so that all the pressing elements 19 of the respective pressing strand can be adjusted synchronously between the release position and the fixing position by the holder drive via the holder linkage 22. The mounting linkage 22 is arranged on the rear side 24 of the base frame 12 facing away from the front side 13 of the frame. The base frame 12 can have a bearing plane 25 which extends parallel to the X-Y plane and is located between the frame front side 13 and the frame rear side 24 and on which the pressing elements 19 are mounted in a rotationally adjustable manner. The pressing elements 19 pass through the bearing plane 25 so that they are drivingly connected to the mounting linkage 22 on the rear side 24 of the frame. The pressing elements 19 can be adjusted between the release position and the fixing position about an axis of rotation 26 running perpendicular to the bearing plane 25. The bearing plane 25 is expediently formed with the aid of a plurality of bearing plates 27, one of which is illustrated by way of example in FIG. 11. One of the pressing elements 19 is rotatably mounted on the bearing plate 27 shown. The bearing plate 27 shown also carries one of the abutment elements 20.Expediently, the pressing elements 19 and the abutment elements 20 can be configured for aligning the vertical frame beams 4 and the vertical support beams 5 parallel to one another and for positioning at a predetermined horizontal distance from one another. According to FIG. 2, the beam holder 14 can have an alignment device 59 which, on the frame front side 13, has a mobile alignment unit 60 which can be adjusted relative to the base frame 12 in the height direction H of the wood frame 1 or in the longitudinal direction X of the base frame 12 and a stationary alignment unit 61 which is arranged in a fixed manner on the base frame 12. The mobile alignment unit 60 can have a plurality of actuator units 62, which are distributed in the transverse direction Y and are arranged at a distance from one another. Two such actuator units 62 are shown in enlarged form in FIGS. 16 and 17. In the example shown, each actuator unit 62 has three separate actuators 63 each, which are arranged adjacent in the normal direction Z. Each actuator 63 can be configured as a pneumatic and / or hydraulic piston-cylinder unit that is oriented and adjustable in length in the longitudinal direction X. The actuator 53 directly adjacent to the frame front side 13 has a return rod 64 which is adjustable in the longitudinal direction X with the actuator 53. According to FIG. 17, a horizontal frame beam 3, for example the lower frame beam 3 u, is placed on the frame front 13 in the region of the mobile alignment unit 60 in such a way that the horizontal frame beam 3 is arranged between the actuators 63 of the respective actuator unit 62 and the respective return rod 64.The alignment device 59 can now be configured for aligning the vertical frame beams 4 and the vertical support beams 5 relative to the horizontal frame beams 3. In this case, the mobile alignment unit 60, namely by means of the actuators 63 of the actuator units 62, presses the one horizontal frame beam 3, in this case the lower frame beam 3 u, in the longitudinal direction X against the vertical frame beams 4 and against the vertical support beams 5, and presses these in the longitudinal direction X against the other horizontal frame beam 3. The other frame leaf 3, here the upper frame beam 3 o, is pressed in the longitudinal direction X against the stationary alignment unit 61, on which it is then supported.The alignment of the vertical frame beams 4 and the vertical support beams 5 with respect to the horizontal frame beams 3 can expediently be effected as long as the pressing elements 19 are still adjusted into their release position. Alternatively, in another embodiment, it can be provided that the pressing elements 19, the abutment elements 20 and the alignment device 59 are matched to one another in such a way that the alignment device 59 can also perform the alignment of the vertical frame beams 4 and the vertical support beams 5 relative to the horizontal frame beams 3 when the pressing elements 19 are adjusted into their fixing position. The alignment device 59 then applies the holding force with which the pressing elements 19 press the vertical frame beams 4 and the vertical support beams 5 against the abutment elements 20 in the transverse direction Y, to overcome it in the longitudinal direction X. In other words, the pressing elements 19 bring about a transverse alignment, i.e. an alignment with respect to the transverse direction Y of the vertical frame beams 4 and the vertical support beams 5, with the abutment elements 20, while the alignment device 59 brings about a longitudinal alignment, i.e. an alignment with respect to the longitudinal direction X of the vertical frame beams 4 and the vertical support beams 5.According to FIGS. 3, 4, 5, 6, 7, 8, 9, 10 to 11, the rod guide 15 has a plurality of guide elements 28 for each wood rod 6. The guide elements 28 are adjustable between a guide position, which is reproduced in FIGS. 7, 8, 9 to 10, and a release position, which is reproduced in FIGS. 3, 4, 5 to 6. The guide elements 28 have for the respective wood bar 6 at least one guide contour 29 which is open transversely to the bar longitudinal direction and through which the respective wood bar 6 can be guided in the bar longitudinal direction. The rod guide 15 also has a plurality of closing elements 30, which are adjustable between a closed position and an open position. The closed position is shown in FIGS. 7, 8, 9 to 10, while the open position is shown in FIGS. 3, 4, 5 to 6. In the closed position, the closing elements 30 close the guide contours 29 of the guide elements 28 adjusted into the guide position transversely to the rod longitudinal direction. In the open position, the closing elements 30 open the guide contours 29 of the guide elements 28 transversely to the rod longitudinal direction. In other words, the guide contours 29 have an opening transversely to the rod longitudinal direction, which opening can be opened and closed with the aid of the closing elements 30. The guide elements 28 and the closing elements 30 are matched to one another in such a way that, in the guide position of the guide elements 28 and in the closed position of the closing elements 30, the guide contours 29 are aligned congruently in the width direction B with the through-openings 10 and the end openings 9 of the support beams 5 and vertical frame beams 4 aligned and fixed on the frame front side 13, with the result that the wood bars 6 are held in the guide contours 29 transversely with respect to the width direction B, that is to say transversely with respect to the bar longitudinal direction, and are guided in the longitudinal direction. In the guiding position, the guiding contours 29 in the rod longitudinal direction and in the width direction B of the wood frame 1 form a passage for the wood rods 6 for aligning and guiding the wood rods 6, which facilitates the threading of the wood rods 6 into the through openings 10 or into the end openings 9. In the release position of the guide elements 28, the guide contours 29 are arranged outside the respective wood bar 6, so that they release the respective wood bar 6 in the depth direction T. As a result, the mounted wood frame 1 can be lifted from the base frame 12 in the depth direction T. When the wooden beams 2 are attached to the base frame 12, the guide elements 28 are in the release position and the closing elements 30 are in the open position according to FIGS. 3, 4, 5 to 6. For aligning and fixing the wooden beams 2 on the base frame 12, according to FIG. 6, on the one hand the pressing elements 19 are transferred according to the rotation arrow 21 from the release position into the fixing position, while on the other hand the guide elements 28 are also shifted from the release position into the guide position and the closing elements 30 are shifted from the open position into the closed position, which is indicated in FIG. 6 by further rotation arrows 31. The guide contours 29 are then aligned with the through openings 10 and closed transversely to the rod longitudinal direction. This state is shown in FIGS. 7, 8, 9, 10 to 11. In FIGS. 7 and 8, the timber beams 2 are positioned and fixed, the timber rods 6 are passed through the through-openings 10 of the support beam 5 shown in FIG. 7. In FIGS. 9 and 10, the wood bars 6 are secured with the closing elements 30 in the guide contours 29. FIG. 10 shows a state in which, in this example, three wood bars 6 are each guided through one of the through-openings 10 of the support beam 5. The rod guide 15 can expediently be configured such that it can adjust all closing elements 30 synchronously between the open position and the closed position. For this purpose, the rod guide 15 can have a guide linkage 32, which is only shown in a rudimentary manner in FIG. 11 and is drive-connected to all closing elements 30. The rod guide 15 can also have a guide drive, not shown here, which is drive-connected to the guide linkage 32. By means of the guide drive, all closing elements 30 can be adjusted synchronously between the open position and the closed position via the guide linkage 32. In this case, the guide linkage 32 can be coupled to the respective closing element 30 via a drive lever 33. Here too, it is expediently provided that the guide linkage 32 is arranged on the rear side 24 of the frame. Furthermore, the closing elements 30 can be mounted on the position plane 25 and in particular on the bearing plate 27 so as to be rotationally adjustable about an axis of rotation 34 which extends perpendicularly to the position plane 25. The closing elements 30 pass through the position plane 25 and are coupled to the guide linkage 32 on the rear side 24 of the frame. In the example of FIG. 11, two closing elements 30 are rotatably mounted on the bearing plate 27. According to FIGS. 4, 6, 8, 10 and 11, the respective guide element 28 can have two or more guide contours 29 which are spaced apart from one another in the depth direction T and which are all open on the same side. The respective closing element 30 is also configured such that, in the closed position, it closes the two or more guide contours 29 of the respective guide element 28 transversely to the rod longitudinal direction and, in the open position, it opens the two or more guide contours 29 transversely to the rod longitudinal direction. This makes it possible, on the one hand, to align and guide at least two wood bars 6 simultaneously, as shown in FIG. 10. In addition, it is thereby possible to provide different distances in the depth direction T in wood bars 6 arranged in pairs, which is advantageous in particular when wood frames 1 having different depths are to be produced. For example, the respective guide element 28 can have three or more guide contours 29, as a result of which two or more different distances in the depth direction T can be set for wood bars 6 arranged in pairs.In the particularly advantageous embodiment presented here, the guide elements 28 of the rod guide 15 are formed by the pressing elements 19 and the abutment elements 20 of the beam holder 14. In other words, the guide contours 29 of the guide elements 28 are formed on the pressing elements 19 and on the abutment elements 20 in such a way that the fixing position of the pressing elements 19 corresponds to the guide position of the guide elements 28. Accordingly, the abutment elements 20 are also mounted rotatably adjustable about an axis of rotation 35 running perpendicular to the bearing plane 25 in order to realize the guiding position and the release position for the function as a guide element 28, wherein the respective abutment element 20 fulfills the abutment element 20 for the alignment by means of the respective pressing element 19 in the guiding position and in the release position and any intermediate position for the function as an abutment element 20. Accordingly, the closing elements 30 form first closing elements 30.1, which interact with the guide contours 29 of the pressing elements 19, and second closing elements 30.2, which interact with the guide contours 29 of the abutment elements 20. According to FIG. 11, the rod guide 15 can also optionally be configured such that it can adjust the guide contours 29 of the guide elements 28 formed on the abutment elements 20 synchronously between the guide position and the release position. For this purpose, the rod guide 15 can have a linkage 69, which is only shown in a rudimentary manner in FIG. 11 and is drivingly connected to all the abutment elements 20. The rod guide 15 can also have a drive, not shown here, which is drive-connected to the linkage 69. By means of this drive, all the abutment elements 20 can be adjusted synchronously between the release position and the guide position via the linkage 69. The linkage 69 can be coupled to the respective abutment element 20 via a drive lever 70. Here too, it is expediently provided that the linkage 69 is arranged on the rear side 24 of the frame. Furthermore, the abutment elements 20 can be mounted on the bearing plane 25 and in particular on the bearing plate 27 so as to be rotationally adjustable about the axis of rotation 35 which extends perpendicularly to the bearing plane 25. The abutment elements 20 pass through the position plane 25 and are coupled to the linkage 69 at the rear side 24 of the frame.The pressing elements 19 equipped with the guide contours 29 can also be adjusted into an intermediate position lying between the fixing position and the release position, in which the wooden beams 2 are released in the depth direction T, but the wooden rods 6 are still held in the depth direction T by the guide contours 29. Additionally or alternatively, the abutment elements 20 equipped with the guide contours 29 can be adjustable into an intermediate position lying between the guide position and the release position, in which the wood bars 6 are held in the depth direction T by the guide contours 29. Expediently, the pressing elements 19 and the abutment elements 20 are coupled to the mounting linkage 22 in such a way that they can be adjusted synchronously by the mounting drive. According to FIG. 6, the rotational adjustment of the pressing elements 19 and of the abutment elements 20 takes place with the same rotational direction. In contrast thereto, the associated closing elements 30, namely the first closing element 30.1 and the second closing element 30.2, are adjusted with opposite rotational directions. Here, too, the adjustment of the closing elements 30 can take place synchronously.According to FIGS. 12, 13, 14 to 15, an assembly station 36 configured for mounting wood frames 1 for components comprises at least one assembly platform 11 and at least one assembly robot 37. The mounting robots 37 are configured to abut the wooden beams 2, to fasten the wooden beams 2 to each other, to insert the wooden beams 6, and to fasten the wooden beams 6 to the wooden beams 2. The two mounting platforms 11 form a first mounting platform 11.1 and a second mounting platform 11.2 within the mounting station 36. The two assembly robots 37 of the assembly station 36 form a first assembly robot 37.1 and a second assembly robot 37.2.Within the mounting station 36, the respective mounting platform 11 is arranged such that the frame front side 13 lies in a mounting plane 38 which is inclined with respect to a vertical direction 39 and has an angle of inclination 40. The mounting plane 38, the vertical direction 39 and the angle of inclination 40 are indicated by way of example in FIG. 12. The angle of inclination 40 is greater than 0°. In other words, the mounting plane 38 is not oriented vertically but instead is inclined with respect to the vertical direction 39. The angle of inclination 40 is a maximum of 45° and is approximately 10° in the example shown.The mounting platform 11 is arranged in the mounting station 36 in such a way that horizontal mounting results for the respective wood frame 1. In other words, the wood frame is mounted lying on the left frame beam 4 lor on the right frame beam 4 r. In relation to the standing arrangement according to FIG. 1, the lying wood frame 1 is rotated through 90° about an axis of rotation running parallel to the depth direction T. When mounted horizontally, the width direction B of the wood frame 1 extends vertically in the mounting station 36, while the height direction H of the wood frame 1 is oriented horizontally in the mounting station 36.The mounting station 36 may also be equipped with a bogie 41 to which the two mounting platforms 11 are attached. The rotary frame 41 is rotatable about a vertical axis of rotation 53 by at least 180°, preferably by 360° and in particular continuously. The bogie 41 is arranged between the two assembly robots 37.The mounting station 36 can also be equipped with a mounting controller 42 which is coupled to the bogie 41, to the two mounting platforms 11 and to the two mounting robots 37 via corresponding control lines, not shown here, so that the mounting controller 42 can actuate or operate the bogie 41, the two mounting stations 11 and the two mounting robots 37. The mounting controller 42 is configured to perform a four-stroke process 43, which is depicted in FIG. 18 in the form of a flow chart.In particular, in a first cycle 44 of the four-cycle process 43, the first mounting robot 37.1 attaches the upper frame beam 3 o, the lower frame beam 3 u, the support beams 5, and in a preferred configuration the left frame beam 4 lor the right frame beam 4 rto the respective mounting platform 11. In other words, in this configuration, only one of the vertical frame beams 4 is mounted while the other vertical frame beam 4 is not mounted. In this configuration, the vertical frame beams 4 have end openings 9 formed as blind holes, so that the longitudinal ends of the wood bars 6 can only be inserted therein, but cannot be carried out. In an alternative second configuration, at least one of the two vertical frame beams 4 can have end openings 9 designed as through openings, so that the wood bars 6 can be guided through these end openings 10. In this second configuration, both vertical frame beams 4, i.e. ultimately all the timber beams 2, can be attached to the respective mounting platform 11 in the first cycle 44.In a second cycle 45 of the four-cycle process 43, the wood bars 6 are expediently guided through the through-openings 10 of the support beams 5 by means of the second mounting robot 37.2 and introduced into the end openings 9 of the one frame beam 4 of left and right frame beams 4 l, 4 r. In the second configuration, the wood bars 6 can be passed through the end openings 9 of the other vertical frame beam 4, which end openings are configured as through openings.In a third cycle 46 of the four-cycle process 43, the missing vertical frame beams 4 or the last wood beam 2 can be placed in the first configuration, wherein it is arranged on the two horizontal frame beams 3. In this case, the still free longitudinal ends of the wood bars 6 are inserted into the end openings 9 of this vertical frame beam 4. This can expediently be carried out again with the first mounting robot 37.1. In the third cycle 46, the wooden beams 2 are also fastened to one another. This can also preferably be carried out using the first mounting robot 37.1. Optionally, it can be provided that the respective mounting robot 37, here the first mounting robot 37.1, is additionally equipped with a hold-down device, with which two holding beams 2, which abut each other at a joint and are to be fastened to each other, are positioned flush with each other in the depth direction T and are then fastened to each other. In the first configuration, it may be expedient to fasten all other timber beams 2 to one another before the attachment of the last, missing vertical frame beam 4. For the attachment of the last wooden beam 2, the beam holder 14 and the rod guide 15 can be controlled for setting the intermediate positions described above, in which the fixing of the wooden beams 2 is released, while the guiding of the wooden rods 6 is maintained. As a result, the missing wooden beam 2 can be easily attached in such a way that the rod ends can be inserted into the end openings 9 of this wooden beam 2. After the arrangement of the last wooden beam 2, the beam holder 14 and the rod guide 15 are again controlled for adjustment into the fixing position or into the guide position, whereby the last arranged wooden beam 2 is finally aligned and positioned. Subsequently, the most recently mounted vertical frame beam 4 can also be fastened to the two horizontal frame beams 3.In a fourth cycle 47 of the four-cycle process 43, the wood bars 6, in particular by means of the second mounting robot 37.2, can be fastened to the wood beams 2. In addition, in the fourth cycle 47, the completely assembled wood frame 1 is removed from the respective assembly platform 11.After completion of the fourth cycle 47, the four cycle process 43 begins again with the first cycle 44 for mounting the next wood frame 1.The mounting controller 42 may be configured to perform a mounting method 48 that is shown simplified in flowchart form in FIG. 19. The assembly method 48 includes four assembly steps or operations 49, 50, 51, 52 that are sequential and repeated. The assembly method 48 is configured such that in the assembly station 36 in the four successive assembly steps 49, 50, 51, 52 two wood frames 1 are produced or assembled simultaneously according to the four-cycle process 43, but offset from one another by one cycle. For this purpose, the mounting controller 42 can transfer the bogie 41 into a first rotational position, which is shown in FIGS. 12 and 13 and in which the first mounting platform 11.1 faces the first mounting robot 37.1, while the second mounting platform 11.2 faces the second mounting robot 37.2. In a second rotational position of the bogie 41, not shown here, which is rotated by 180° about the axis of rotation 53 relative to the first rotational position, the first mounting platform 11.1 faces the second mounting robot 37.2, while the second mounting platform 11.2 faces the first mounting robot 37.1. The first mounting robot 37.1 is configured to be able to operate according to the first cycle 44 and according to the third cycle 46. In contrast, the second assembly robot 37.2 is configured to be able to operate according to the second cycle 45 and according to the fourth cycle 47.In the first working step 49, the first rotational position is present and the first mounting robot 37.1 works on the first mounting platform 11.1 according to the first cycle 44 and mounts the wooden beams 2. The second assembly robot 37.2 works on the second assembly platform 11.2 according to the fourth cycle 47 and fixes the wood bars 6 to the wood beams 2. The removal of the finished wood frame 1 is indicated in FIGS. 12 and 13 by an arrow 54. The finished wood frame 1 is discharged lying down.In the second working step 50, the second rotational position is present and the first mounting robot 37.1 works on the second mounting platform 11.2 according to the first cycle 44, so that the wooden beams 2 are arranged on the second mounting platform 11.2. The second mounting robot 37.2 now operates on the first mounting platform 11.1 according to the second cycle 45 and uses the wood bars 6.In the third working step 51, the first rotational position is again present and the first mounting robot 37.1 works on the first mounting platform 11.1 according to the third cycle 46 and can optionally mount the missing wooden beams 2 and fasten the wooden beams 2 to one another. At the same time, the second mounting robot 37.2 operates on the second mounting platform 11.2 according to the second cycle 45 and uses the wood bars 6 there.In the fourth working step 52, the second rotational position is again present and the first mounting robot 37.1 works on the second mounting platform 11.2 according to the third cycle 46, so that it optionally attaches the missing wooden beam 2 there and fixes the wooden beams 2 to one another. The second mounting robot 37.2 then works on the first mounting platform 11.1 according to the fourth cycle 47 and fixes the wood bars 6 to the wood beams 2.After the fourth working step 52, the first working step 49 follows again and the working method 48 repeats itself.In the following, the removal of the completely assembled wood frame 1 from the respective assembly platform 11 carried out in the fourth cycle 47 is explained in more detail with reference to FIGS. 14 and 15.In the state of FIG. 14, the wood frame 1 facing the observer is fully assembled, so that it can be removed from the respective base frame 12. In FIG. 14, the respective excavation beam 17 or the excavation structure 68 is still in the assembly position, in which the beam holder 14 and the rod guide 15 prevent an adjustment of the wood frame 1 transversely to its depth direction T relative to the base frame 12. The finished wood frame 1 is supported at the bottom, i.e. on the edge side 18, by the holding plates 65 and the holding rods 66.To remove the finished wood frame 1, the excavation beams 17 or the excavation structure 68 are first adjusted from their mounting position according to FIG. 14 into their transfer position according to FIG. 15, in which they move relative to the base frame 12 in the depth direction T and accordingly lift the wood frame 1 from the base frame 12 in the depth direction T. In FIG. 15, the wood frame 1 is lifted from the base frame 12 to such an extent that it comes free from the beam holder 14 and from the rod guide 15. In this case, the wood frame 1 also comes free from the retaining plates 65, while it still rests on the retaining rods 66. The lifting of the wooden frame 1 from the base frame 12 is indicated in FIG. 15 by an arrow 55.Subsequently, the finished wood frame 1 can be transferred directly to a conveying device 57, which is indicated only by a line in FIGS. 12, 13, 14 to 15 and which enables the finished wood frame 1 to be removed from the mounting platform 36 according to an arrow 54. The holding rods 66 simplify the transfer of the finished wood frame 1 lifted from the base frame 12 onto the conveying device 57, and the holding rods 66 can be configured to be rotatable about their longitudinal axis in order to facilitate the transfer again.

Claims

Mounting platform (11) for mounting a rectangular wood frame (1) for a structural element, - wherein the respective wood frame (1) has a width direction (X) which runs horizontally when the wood frame (1) is arranged in a upright manner, a height direction (Z) which runs perpendicularly to the width direction (X) and which runs vertically when the wood frame (1) is arranged in an upright manner, and a depth direction (Y) which runs perpendicularly to the width direction (X) and perpendicularly to the height direction (Z) and which runs horizontally when the wood frame (1) is arranged in an upright manner, - wherein the respective wood frame (1) has a plurality of straight wood beams (2), the two outer horizontal frame beams (3) which form an upper frame beam (3o) and a lower frame beam (3u) of the wood frame (1), two outer vertical frame beams (4), forming a left frame beam (4l) and a right frame beam (4r) of the wood frame (1) and which are supported on the two horizontal frame beams (3) and form a plurality of inner vertical support beams (5) which are arranged between the vertical frame beams (4) and are supported on the horizontal frame beam (3), - wherein the respective wood frame (1) has a plurality of straight wood bars (6) which, when the wood frame (1) is arranged in a upright position, extend horizontally from the one vertical frame beam (4) through the support beams (5) to the other vertical frame beam (4) and which form in the respective wood frame (1) a plurality of compartments (7) which in each case pass upwards through the upper frame beam (3o) or through at least one of the wood bars (6), pass downwards through the lower frame beam (3u) or through at least one of the wood bars (6), left-hand side of the left-hand side of the frame beam (4l) or of one of the support beams (5) and right-hand side of the right-hand side of the frame beam (4r) or of one of the support beams (5), - the longitudinal ends (8) of the wood rods (6) being inserted in the respective frame of wood (1) into end openings (9) formed in the respective vertical frame of wood (4) and being passed through through openings (10) formed in the support beam (5), - having a base frame (12) which has a frame front side (13) for placing the wood beams (2) which, on the finished frame of wood (1), form the horizontal frame beams (3), the vertical frame beams (4) and the support beams (5), a beam holder (14) for aligning and fixing the wood beams (2) lying against the frame front side (13) in predetermined positions, in such a way that the wood beams (2) fixed in the predetermined positions form the horizontal frame beams (3), the vertical frame beams (4) and the support beams (5) on the finished wood frame (1) in such a way that the wood beams (2) fixed in the predetermined positions can be fastened to one another, - having a rod guide (15) for aligning and guiding the wood rods (6) when passing the wood rods (6) through the through openings (10) of the support beams (5) and when inserting the wood rods (6) into the end openings (9) of the respective vertical frame beam (4).Mounting platform (11) according to claim 1, characterised in that - the mounting platform (11) has a lifting device (16) which is configured such that it can adjust the wood frame (1) relative to the frame front side (13) of the base frame (12) when the wood beams (2) are fastened to one another and the wood rods (6) are fastened to the wood beams (2) and when the beam holder (14) has released the wood beams (2), so that the wood frame (1) is lifted from the frame front side (13) in the depth direction (Y) and is removable from the base frame (12) transversely to the depth direction (Y).Mounting platform (11) according to Claim 2, characterized - in that the lifting device (16) has at least one excavation beam (17) and at least one lifting drive (56) for adjusting the respective excavation beam (17) relative to the base frame (12) between an installation position and a transfer position, - in that the respective excavation beam (17) is arranged on the frame front side (13) in the installation position, such that the wood beams (2) can be placed, aligned and fixed on the frame front side (13).Mounting platform (11) according to one of the preceding claims, characterized - in that the beam holder (14) on the frame front side (13) has a plurality of pressing elements (19), which can be adjusted between a fixing position and a release position, and a plurality of abutment elements (20), - in that the pressing elements (19) in the release position enable the wood beams (2) to be placed against the frame front side (13) and against the abutment elements (20), - in that the pressing elements (19), when adjusted from the release position into the fixing position, press the respective wood beam (2) against the abutment elements (20) and in the process bring about the alignment and fixing of the respective wood beam (2) in the predetermined position on the base frame (12), the pressing elements (19), when being adjusted from the fixing position into the release position, release the wooden beams (2) and allow the mounted wooden frame (1) to be lifted off the base frame (12) in the depth direction (Y).Mounting platform (11) according to Claim 4, characterized - in that the pressing elements (19) and the abutment elements (20) are configured for aligning the vertical frame beams (4) parallel to one another and for positioning at a predetermined horizontal distance from one another, - in that the beam holder (14) has an alignment device (59) which has, on the frame front side (13), a mobile alignment unit (60) which can be adjusted relative to the base frame (12) in the height direction (H) and a stationary alignment unit (61) which is arranged in a fixed manner on the base frame (12), - in that the alignment device (59) is configured for aligning the vertical frame beams (4) relative to the horizontal frame beams (3) in such a way that the mobile alignment unit (60) presses the one horizontal frame beam (3) against the vertical frame beams (4) and presses the latter against the other horizontal frame beam (3), which is supported on the stationary alignment unit (61).Mounting platform (11) according to Claim 5, characterized - in that the pressing elements (19), the abutment elements (20) and the alignment device (59) are matched to one another in such a way that the alignment device (59) can carry out the alignment of the vertical frame beams (4) relative to the horizontal frame beams (3), while the pressing elements (19) are adjusted into their fixing position.Mounting platform (11) according to one of the preceding claims, characterized - in that the rod guide (15) has, for each wood rod (6), a plurality of guide elements (28) which can be adjusted between a guide position and a release position and which have, for the respective wood rod (6), at least one guide contour (29) which is open transversely with respect to the rod longitudinal direction, and a plurality of closing elements (30) which can be adjusted between a closed position in which they close the guide contours (29) of the guide elements (28) which are adjusted into the guide position transversely with respect to the rod longitudinal direction, and an open position in which they open the guide contours (29) of the guide elements (28) transversely with respect to the rod longitudinal direction, - in that the guide elements (28) and the closing elements (30) are matched to one another in such a way that, in the guide position of the guide elements (28) and in the closed position of the closing elements (30), the guide contours (29) are aligned congruently in the longitudinal direction (X) with the through openings (10) and the end openings (9) of the support beams (5) and vertical frame beams (4) aligned and fixed on the frame front side (13), and the wood bars (6) are held in the guide contours (29) transversely to the longitudinal direction (X) and are guided in the longitudinal direction (X), - in the release position of the guide elements (28), the respective guide contour (29) is arranged outside the respective wood bar (6) and releases the respective wood bar (6) in the depth direction (Y), so that an assembled wood frame (1) can be lifted off the base frame (12) in the depth direction (Y).Mounting platform (11) according to Claim 7, characterized - in that the respective guide element (28) has at least two such guide contours (29) which are spaced apart from one another in the depth direction (Y), - in that the respective closing element (29) is configured such that, in the closed position, it closes the at least two guide contours (29) transversely with respect to the rod longitudinal direction and, in the open position, it opens the at least two guide contours (29) transversely with respect to the rod longitudinal direction.Mounting platform (11) according to Claim 4 and according to Claim 7 or 8, characterized - in that the guide elements (28) of the rod guide (15) are formed by the pressing elements (19) and the abutment elements (20) of the beam holder (14), - in that the guide contours (29) are formed on the pressing elements (19) and on the abutment elements (20) in such a way that the fixing position of the pressing elements (19) corresponds to the guide position, - in that the abutment elements (20) can be adjusted between the guide position and the release position.Mounting platform (11) according to Claim 9, characterized - in that the closing elements (30) of the rod guide (15) form first closing elements (30.1), which interact with the guide contours (29) of the pressing elements (19), and second closing elements (30.2), which interact with the guide contours (29) of the abutment elements (20).Mounting platform (11) according to Claim 9 or 10, characterized - in that the pressing elements (19) can be adjusted into an intermediate position lying between the fixing position and the release position, in which the wood beams (2) are released in the depth direction (Y), but the wood bars (6) are still held in the depth direction (Y) by the guide contours (29) of the pressing elements (19), and / or - in that the abutment elements (20) can be adjusted into an intermediate position lying between the guide position and the release position, in which the wood bars (6) are held in the depth direction (Y) by the guide contours (29) of the abutment elements (20).Mounting station (36) for mounting wood frames (1) for structural elements, - with at least one mounting platform (11) according to one of the preceding claims, - with at least one mounting robot (37) for placing the wood beams (2), for fastening the wood beams (2) to one another, for inserting the wood rods (6) and for fastening the wood rods (6) to the wood beams (2).Mounting station (36) according to claim 12, characterised in that - the respective mounting platform (11) is arranged in the mounting station (36) such that the frame front side (13) lies in a mounting plane (38) which is inclined by at most 45° with respect to a vertical direction (39).Mounting station (36) according to claim 12 or 13, characterised in - that the respective mounting platform (11) is arranged in the mounting station (36) such that the wood frame (1) is mounted lying so that the width direction (B) of the wood frame (1) lies in a vertical plane in the mounting station (36).Mounting station (36) according to one of Claims 12 to 14, characterized - in that the mounting station (36) has two such mounting platforms (11), namely a first mounting platform (11.1) and a second mounting platform (11.2), - in that the mounting station (36) has two such mounting robots (37), namely a first mounting robot (37.1) and a second mounting robot (37.2), - in that the mounting station (36) has a bogie (41) for receiving the two mounting platforms (11), which bogie is rotatable by at least 180° about a vertical axis of rotation (53) and which is arranged between the two mounting robots (37).Mounting station (36) according to claim 15, characterized in that - the mounting station (36) comprises a mounting controller (42), which is coupled to the bogie (41), the mounting platforms (11) and to the mounting robots (37) and which is configured such that the wood frames (1) are produced according to a four-stroke process (43), - that in a first stroke (44) of the four-stroke process (43), the upper frame beam (3o), the lower frame beam (3u), the one of the left and right frame beams (4l, 4r) and the support beams (5) are attached to the respective mounting platform (11), in a second cycle (45) of the four-cycle process (43), the wood bars (6) are passed through the through openings (10) of the support beams (5) and in which one of the left and right frame beams (4l, 4r) is inserted into the end openings (9), in a third cycle (46) of the four-cycle process (43), the other of the left and right frame beams (4l, 4r) is arranged on the upper frame beam (3o) and on the lower frame beam (3u), in such a way that in the other of the left and right frame beams (4l, 4r) the wood bars (6) are inserted into the end openings (9) and the wood beams (2) are fastened to one another, in a fourth cycle (47) of the four-cycle process (43), the wood bars (6) are fastened to the wood beams (2) and the mounted wood frame (1) is removed from the mounting platform (11).Mounting station (36) according to claim 16, characterised in that - the mounting controller (42) is also configured to control the two mounting robots (37), the two mounting platforms (11) and the bogie (41) according to a working method (48) in four successive and repeating working steps (49, 50, 51, 52) in such a way that two timber frames (1) are mounted simultaneously according to the four-stroke process (43) but offset from one another by one stroke, - in a first rotational position of the bogie (41), the first mounting platform (11.1) faces the first mounting robot (37.1) while the second mounting platform (11.2) faces the second mounting robot (37.2), - in a second rotational position of the bogie (41), the first mounting platform (11.1) faces the second mounting robot (37.2), while the second mounting platform (11.2) faces the first mounting robot (37.1), - that the first mounting robot (37.1) is configured to operate according to the first cycle (44) and according to the third cycle (46), while the second mounting robot (37.2) is configured to operate according to the second cycle (45) and according to the fourth cycle (47), - that in a first operating step (49) the first rotational position is present and the first mounting robot (37.1) operates on the first mounting platform (11.1) according to the first cycle (44), while the second mounting robot (37.2) operates on the second mounting platform (11.2) according to the fourth cycle (47), in a second working step (50), the second rotational position is present and the first mounting robot (37.1) operates on the second mounting platform (11.2) according to the first cycle (44), while the second mounting robot (37.2) operates on the first mounting platform (11.1) according to the second cycle (45), in a third working step (51), the first rotational position is present and the first mounting robot (37.1) operates on the first mounting platform (11.1) according to the third cycle (46), while the second mounting robot (37.2) operates on the second mounting platform (11.2) according to the second cycle (45), in a fourth working step (52), the second rotational position is present and the first mounting robot (37.1) operates on the second mounting platform (11.2) according to the third cycle (46), while the second mounting robot (37.2) operates on the first mounting platform (11.1) according to the fourth cycle (47).

Images