Machine tool and method for assembling machine tool

Abstract

The invention relates to a machine tool (1) for machining and treating plate-shaped workpieces (22), comprising a machine tool table (6) having at least two longitudinal frame modules (2) and at least two transverse frame modules (3), each longitudinal frame module (2) being connected to the at least two transverse frame modules (3) in a fastened manner, each longitudinal frame module (2) has an upper flange (8) and a lower flange (9), which are formed from metal profiles, such as pipes, and which are connected to one another by mutually spaced columns (10), at least one upper flange (8) being supported with a guide rail (7) for movably mounting tools, the columns (10) are welded to the upper flange (8) and the lower flange (9) on each longitudinal frame module (2), and each longitudinal frame module (2) is connected to at least two transverse frame modules (3, 3 ') via mechanical fastening to form a frame of the machine table (6) of the machine tool (1). The invention also relates to a method for assembling a machine tool (1).

Description

Technical Field

[0001] The present invention relates to a machine tool for machining and processing plate-shaped workpieces and a method for assembling the machine tool, the machine tool having a machine tool worktable, the machine tool worktable comprising at least two longitudinal frame modules and at least two transverse frame modules, wherein each longitudinal frame module is connected to at least two transverse frame modules by fastening, and each longitudinal frame module comprises an upper flange and a lower flange, the upper flange and the lower flange are formed by metal profiles such as pipes, the upper flange and the lower flange are connected to each other via columns spaced apart from each other, wherein a guide rail for movably mounting a tool is supported on at least one upper flange. Background Art

[0002] DE 10 200 9 025 816 B4 discloses a device for processing panel-shaped workpieces, wherein a large-sized panel made of wood material is placed on a machine table and then processed using tools. It is also possible to divide the large-sized panel into individual panel parts, which are then transported for further processing. The problem with this device is that the machine table is usually made of a welded steel structure as a whole. This requires welding the entire frame of the machine table together, thus forming a bulky raw body, which is difficult to transport and leads to high assembly costs both during production and at the installation site.

[0003] This problem also exists in machines for processing sheet metal, as is shown, for example, in DE 10 201 6 120 151. Monolithic frames are also used in other machines for processing stone or in lathes.

[0004] DE 197 45 233 A1 discloses a machine tool having a frame structure in which longitudinal and vertical tubular elements are assembled, which are then filled with concrete and sealed.

[0005] EP 2 100 693 A1 discloses a processing device having a machine tool, which comprises a base part and a leg part arranged at an angle thereto. The machine tool can also consist of several parts, wherein the individual parts are glued together or connected to each other by bolts. Summary of the invention

[0006] Therefore, a problem to be solved by the present invention is to provide a machine tool for machining and processing a workpiece and a method for assembling such a machine tool, which can flexibly manufacture a machine tool table and can be efficiently installed at the installation site.

[0007] This problem is solved by a machine tool having the features of claim 1 and a method having the features of claim 12 .

[0008] In the machine tool according to the present invention, the machine table includes at least two longitudinal frame modules and at least two transverse frame modules, wherein each longitudinal frame module is connected to the at least two transverse frame modules by a fastening method, and each longitudinal frame module includes an upper flange and a lower flange, and the upper flange and the lower flange are connected to each other via mutually spaced columns, wherein a guide rail for movably mounting a tool is supported on at least one upper flange. The column on each longitudinal frame module is welded to the upper flange and the lower flange, and each longitudinal frame module is connected to at least two transverse frame modules via a mechanical fastening method to form the frame of the machine table of the machine tool. Therefore, the transverse frame module and the longitudinal frame module can be prefabricated separately with standardized sizes and with a high degree of automation so as to be subsequently transported to the installation site of the machine tool. These separate longitudinal frame modules are easier to operate and can be fixed together at the installation site, for example, by a mechanical fastening method. This modular design also produces a high level of flexibility in the manufacture of the machine itself and possible applications, because the longitudinal frame module and the transverse frame module can be manufactured in any size and can be combined with each other.

[0009] Preferably, the at least two longitudinal frame modules and the at least two transverse frame modules are surface treated at the contact points. Such surface treatment may be, for example, painting (in particular powder coating), grinding, polishing or other machining methods. In any case, the longitudinal frame modules and the transverse frame modules are first surface treated and subsequently assembled together in a second step so that the contact points adjacent to each other are also surface treated. The surface treatment of the modules is therefore performed before the actual assembly of the modules. Thus, the longitudinal frame modules can first be formed by welding together metal profiles, which are then coated before the assembly of the transverse frame modules. Thus, assembly is performed in the coated state of the longitudinal frame modules.

[0010] For stable support, each transverse frame module comprises a lower base profile and an upper horizontal base profile, which are connected to each other via a plurality of support profiles. The support profiles can be vertically aligned or inclined relative to the vertical direction in order to provide stable support. Optionally, for some applications, the upper horizontal base profile can also be omitted, so that the transverse frame module only comprises a lower base profile and a vertical or inclined support profile.

[0011] The machine tool is preferably equipped with a movable gantry. The gantry can preferably be supported on two columns, each of which can be moved along guide rails. Tools can then be arranged on the gantry, such as tools for wood processing, drilling, cutting or other mechanical processing of workpieces, as well as tools for additive manufacturing. Additionally or alternatively, gripping tools can also be provided to lift and place the workpiece.

[0012] For the precise alignment of the guide rail on the upper flange, a mounting plate is preferably provided between the upper flange and the guide rail, and the mounting plate is fixed to the upper flange. By changing the number and thickness of the mounting plates, height compensation is achieved using the mounting plates between the upper flange and the guide rail, so that the guide rail is accurately supported on the upper flange and is flat in a straight line direction. Therefore, it is easy to make leveling for slight unevenness between the pillars of the upper flange. The mounting plate is preferably arranged as a die-cast plate made of aluminum or plastic, and the mounting plate is provided with a gate point so that the mounting plate can be quickly placed on the upper flange and fixed in place by a connecting device. The mounting plate can also be installed on the upper flange with the same thickness and then leveled using a milling device at the installation site, that is, the thickness is reduced. The leveling of the mounting panel ensures a very high level of precision, so that the guide rail can be accurately mounted on the mounting panel that has been leveled by milling.

[0013] In order to effectively assemble the machine tool table, the at least two transverse frame modules can be bolted to the longitudinal frame module. Here, the bolts can cause the longitudinal frame module to apply a pre-tightening force toward the transverse frame module, that is, to press the transverse frame module in the length direction of the transverse frame module, so that the longitudinal frame module is accurately aligned, oriented and supported.

[0014] In another embodiment, a portion of the transverse frame module is supported together with a portion of the longitudinal frame module on a base plate. This allows the base plate to be arranged at the connection point between the longitudinal frame module and the transverse frame base material, so that unevenness on the surface can be easily leveled.

[0015] In a preferred embodiment, the guide rail and the upper flange on at least one side of the longitudinal frame module optionally protrude beyond the end of the transverse frame module there. The protruding part of the guide rail on the longitudinal frame module can be used to transport workpieces from one area of ​​the machine table to an adjacent location, such as a delivery pile, a conveyor belt or another processing station. For this purpose, an interface is formed in the protruding area of ​​the guide rail so that the workpiece can be automatically fed for further processing thereof.

[0016] Preferably, the machine table has a flat support structure for supporting a plate-like workpiece, for example, a wooden board, a steel board, an aluminum board, a plastic board or other workpieces. Such a machine table can, for example, be provided with a suction device so as to completely or partially fix the workpiece by means of a vacuum. Alternatively, the machine table can also be designed for other machining processes, for example, a machining process using a sacrificial plate, using a cutting jet, such as a water jet process or a laser beam cutting process. For this purpose, a tray, for example a removable collecting tray, is optionally provided below the machine table. Thus, the machine tool according to the present invention can be used for various forms of machining.

[0017] In the method for assembling a machine tool according to the invention, at least two longitudinal frame modules are first assembled, each longitudinal frame module comprising an upper flange and a lower flange, the upper flange and the lower flange being connected to each other by mutually spaced columns, the columns being welded to the upper flange and the lower flange. In addition, at least two transverse frame modules are assembled, each transverse frame module comprising a lower base profile and one or more supporting profiles, the supporting profiles being particularly vertically aligned or inclined relative to the vertical direction. The longitudinal frame modules and the transverse frame profiles are then surface treated, in particular coated, for example with paint, so that the longitudinal frame modules are subsequently connected to at least two transverse frame profile modules by mechanical fastening to form the frame of the machine tool table of the machine tool. This modular construction allows that separate longitudinal frame modules and separate transverse frame modules can be effectively transported to the installation location of the machine and then fixed together using mechanical fastening. This significantly shortens the installation time when assembling the machine.

[0018] Preferably, the longitudinal frame modules and the transverse frame modules are coated during the surface treatment, in particular powder coated.

[0019] For flexible machining of workpieces, guide rails for the displaceable mounting of tools are preferably fastened to each upper flange of the longitudinal frame modules, said guide rails being used in particular for the displaceable mounting of a gantry.

[0020] Brief description of the attached figure

[0021] The present invention will be explained in more detail below with reference to the accompanying drawings.

[0022] Figure 1 : A three-dimensional diagram of a machine tool according to the present invention;

[0023] Figure 2 : Side view of the longitudinal frame module;

[0024] Figure 3 : Side view of the transverse frame module;

[0025] Figure 4 : Top view of the machine tool;

[0026] Figure 5 : A view of a transverse frame module of a variant embodiment, and

[0027] Figure 6 : A view of a transverse frame module of a variant embodiment on a machine tool table of a variant embodiment;

[0028] Fig. 7A and Figure 7B : Two views of a machine tool table according to a variant embodiment of a machine tool according to the present invention;

[0029] Figure 8 : A perspective view of a machine tool table of a variant embodiment of a machine tool, and

[0030] Fig. 9 : A three-dimensional view of a machine tool worktable of another embodiment of a machine tool. DETAILED DESCRIPTION

[0031] The machine tool 1 comprises two or more longitudinal frame modules 2 and two or more transverse frame modules 3. The transverse frame modules 3 are arranged between the longitudinal frame modules 2 and are fixed to the longitudinal frame modules by fastening means, in particular mechanical fastening means. The frame heights of the longitudinal frame modules 2 and the transverse frame modules 3 are the same and in a top view from above, these form an annular frame which in the assembled position forms part of a machine tool table 6.

[0032] Guide rails 7 are supported on each longitudinal frame module 2, wherein a gantry column 5 of a gantry 4 is movably held on each guide rail 7. Thus, the gantry 4 is engaged above a machine table 6, on which a workpiece can be placed for processing. For example, the workpiece can be a large-sized panel made of wood material, plastic or metal, which is processed using a tool held on the gantry 4.

[0033] Figure 2 A longitudinal frame module 2 is shown. The longitudinal frame module 2 comprises an upper flange 8 and a lower flange 9, which are formed of metal profiles such as pipes, the upper flange 8 being supported on the lower flange 9 by a plurality of columns 10. The number of columns 10 can be selected according to the length of the longitudinal frame module, the columns being arranged, for example, at fixed intervals between 80 cm and 1.50 m. The columns 10 can be welded to the upper flange 8 and the lower flange 9, or fixed to each other using other fastening methods.

[0034] The longitudinal frame modules 2 are supported on a plurality of base plates 16 in the region of the lower flanges 9. Preferably, the base plates 16 are formed such that a portion of the lower flanges 9 together with the end portions of the transverse frame modules 3 are supported on the base plates 16. Bolts or other leveling elements for leveling the machine can optionally be fitted to the base plates 16 in order to compensate for unevenness in the floor.

[0035] A plurality of mounting plates 11 are provided on the upper side of the upper flange 8, which are arranged between the upper flange 8 and the guide rail 7. If the individual parts of the upper flange 8 are not arranged at exactly the same height, this can be leveled by means of the mounting plates 11, which can be installed with different thicknesses or installed with the same thickness and then reduced in thickness by machining. The mounting plates 11 can be manufactured in a standardized form as a casting. The mounting plates are then fixed and bolted to the upper flange 8 using drilled holes. Subsequently, the flatness of the mounting plates 11 can also be accurately produced over the entire length of the frame using a milling device. This allows the guide rail 7 to be precisely aligned and oriented in the horizontal direction and to rest against the mounting plates 11. Preferably, the guide rail 7 is fixed to the mounting plates 11 and the upper flange 8 by mechanical fastening.

[0036] The columns 5 of the gantry 4 can move on the guide rails 7 , wherein a motor 12 is provided on at least one column 5 , preferably two columns 5 , and the gantry 4 can move along the longitudinal direction of the guide rails 7 by being driven by the motor.

[0037] Figure 3 A transverse frame module 3 is shown, comprising a lower base profile 14 and an upper base profile 13, which are formed, for example, from tubular steel. The upper base profile 13 is supported by one or more uprights 15, which connect the lower base profile 14 to the upper base profile 13. The transverse frame module 3 has the same frame height as the longitudinal frame module 2 and, in the assembled position, can be bolted to the longitudinal frame module 2, for example by bolts aligned in a direction parallel to the length direction of the base profiles 13 and 14.

[0038] At least one workbench frame 17 is arranged above the upper base profile 13, and the workbench frame includes a vacuum clamping plate 18. In this way, the workpiece can be fixed on the upper side of the vacuum clamping plate 18 by means of negative pressure. This is particularly suitable for wooden panels, which are single panels cut from large-sized panels and processed. It is also possible to install multiple workbench frames 17 on the base profile 13. The width of the workbench frame 17 is preferably equal to the distance between the vertically arranged columns 10 on the longitudinal frame module 2, and the length of the workbench frame is equal to the width of the machine tool table 6 or the panel. Figure 3 In this case, the workbench frame 17 applies a force to the guide rails 7 supporting it.

[0039] Figure 4A top view of a machine tool table is shown, over which a gantry 4 can move. A manipulator 21 for handling and / or processing a workpiece 22 is fixed to the gantry 4, which is arranged on a movable bracket 20. For example, a workpiece 22 made of a divided plate can be transported to a delivery pile 23 via the manipulator 21. The delivery pile 23 is arranged adjacent to the transverse frame module 3, wherein a portion 70 of the guide rail 7 protrudes beyond the transverse frame module 3 at the end, so that the gantry 4 can move and exceed the transverse frame module 3 and stack the workpiece at the delivery pile 23 or transfer the workpiece to another processing tool. In order to better support the guide rail 7, the upper flange 8 of the longitudinal frame module 2 can also protrude beyond the transverse frame module 3, optionally also protruding in the longitudinal direction at both ends, that is, protruding in front of and behind the machine tool table.

[0040] In addition to the robot 21 , other tools such as drills, milling tools, cutting tools or profiling tools can also be used on the gantry 4 on the support.

[0041] In addition to using the robot 21, the workpiece handling procedure for stacking workpieces 22 can be performed via a lifting device 24, which is mounted on a tool holder arranged to travel on the gantry 4. The lifting device includes at least one vertical and / or horizontal stroke for handling the workpieces 22. Such a lifting device is particularly suitable for a method for handling individual workpieces, which have been cut out from a large-sized panel and pre-processed.

[0042] Figure 5 A transverse frame module 3' of a variant embodiment is shown, in which no upper base profile 13 is provided, but only a lower base profile 14 and a side column 15 are provided. Two inclined support profiles 19 extend from the central region of the lower base profile 14 to the upper region of the support column 15, so that the transverse frame module 3' has essentially the same frame height as the longitudinal frame module 2 in the region adjacent thereto. Due to this V-shaped arrangement of the support profiles 19, the central region of the machine table 6 can be used for other purposes, for example for a movable collecting tray 30, which is arranged below the strip table with an opening for the spraying process, for example for a cutting process.

[0043] The collecting tray 30 can be kept in a fixed position or alternatively connected to and moved with the mobile bracket 31 arranged on the left / right. The mechanical connection between the collecting tray 30 and the gantry column 5 moves in the gap existing between the guide rail 7 and the workbench frame 17 ', which extends along the existing longitudinal frame module 2 and is supported on both ends of the guide rail 7. As shown in the previous embodiment, the gantry 4 can be moved above the strip workbench 32 via the gantry column 5.

[0044] Figure 6 Shown with Figure 5 The same transverse frame module 3 ′, but with a further modification of the workbench: The complete table-like workbench 34 and / or the workbench frame 17 arranged above or between the guide rails 7 is movable via the profile rails 33 .

[0045] Fig. 7A and 7B The machine tool table of another embodiment of the machine tool according to the present invention is shown, from which it can be seen that Fig. 7A In the embodiment, the machine tool table comprises two longitudinal frame modules 2 located on opposite sides, each of which comprises an upper flange 8, a lower flange 9 and a plurality of columns 10 connecting the upper flange 8 to the lower flange 9. The columns 10 are welded to the lower flange 9 and the upper flange 8, and the resulting structure is transported to the installation site as a prefabricated unit for assembling the machine tool table. The two longitudinal frame modules 2 are connected to each other via a plurality of transverse frame modules 3, wherein four transverse frame modules 3' are provided with V-shaped support profiles 19 and one transverse frame module 3 is provided with a central column 15. Each transverse frame module 3, 3' comprises a lower basic profile, which is connected to the longitudinal frame module 2 via mechanical fastening. In addition, each transverse frame module 3, 3' has a column 15 adjacent to the longitudinal frame module 2, which is connected to the V-shaped support profile 19 or to the upper basic profile 13 at the top. The transverse frame modules 3, 3' can also be brought to the installation site as a prefabricated unit so that they can be connected to the longitudinal frame module 2 later. As shown in the previous embodiment, a plurality of mounting plates 11 are mounted on the upper flange 8 of the longitudinal frame module 2, on which the guide rail 7 is arranged. In addition, a workbench frame 17' is provided in the form of a longitudinal profile, which is fixed to the opposite ends of the upper side of the guide rail 7 via the angled portions located on the upper side of the guide rail 7.

[0046] Figure 8 A machine tool table is shown, wherein two longitudinal frame modules 2 have an increased distance between them. The two longitudinal frame modules 2 are connected to each other via a plurality of transverse frame modules 3, each of which comprises an upper basic profile 13, a lower basic profile 14 and at least three columns 15, the columns 15 connecting the lower basic profile 14 to the upper basic profile 13 replacing the support profiles arranged in the V-shape described above. The columns 15 can be welded to the lower basic profile 14 and the upper basic profile 13, or fixed to each other by fastening. On the upper side of the machine tool table, a table frame 17 is arranged on the guide rail 7, the table frame having a metal profile 51 aligned and oriented parallel to the guide rail 7 and a transverse profile 52 arranged perpendicular thereto. The table frame 17 is fixed to or attached to the guide rail 7 by mechanical fastening or welding, so that it can be moved via the profile rail 33. Preferably, the table frame 17 is formed as a grid-like frame and serves as a supporting element for supporting the workpiece.

[0047] Fig. 9 A machine tool table similar to that of FIG. 7 is shown, which comprises two longitudinal frame modules 2, which are connected to each other via transverse frame modules 3, 3'. A plurality of table-type operating tables 34 are arranged on the upper side, which are supported on the two longitudinal frame modules 2 via profile rails 33 on guide rails 7 and are thus movable, in particular displaceable.

[0048] The embodiments shown can be combined with one another, for example the transverse frame module 3' can also be used in accordance with Figure 1 or Figure 2 Furthermore, the machine tool 1 can be used for completely different applications, depending on the type of workpiece to be machined on the machine table 6 .

[0049] The longitudinal frame modules 2 and the transverse frame modules 3, 3' are respectively assembled as prefabricated units, wherein the profile tubes are welded together or connected to each other by mechanical fastening. After the longitudinal frame modules 2 and the transverse frame modules 3, 3' have been manufactured, they are surface treated, in particular coated, so that the longitudinal frame modules 2 and the transverse frame modules 3 can then be transported to the installation site of the machine tool 1. At the installation site, the transverse frame module 3 is then fixed to the longitudinal frame module 2 to manufacture the machine tool 1. Two or more longitudinal frame modules 2 and / or transverse frame modules 3 can also be connected together to form a machine tool table 6.

[0050] Reference numerals list

[0051] 1Machine Tools

[0052] 2 longitudinal frame modules

[0053] 3. 3' horizontal frame module

[0054] 4Gantry

[0055] 5Gantry columns

[0056] 6Machine tool table

[0057] 7 rails

[0058] 8 Upper flange

[0059] 9 Lower flange

[0060] 10 columns

[0061] 11 Mounting plate

[0062] 12 Motor

[0063] 13 Basic profiles

[0064] 14 Basic profiles

[0065] 15 columns

[0066] 16 substrates

[0067] 17, 17' workbench frame

[0068] 18 Vacuum clamping plate

[0069] 19 Support profile

[0070] 20 brackets

[0071] 21 Robot

[0072] 22 Workpieces

[0073] 23 Delivery Pile

[0074] 24 Lifting device

[0075] 25 Tools

[0076] 30 Collection Plate

[0077] 32 bar workbench

[0078] 33 profile rail

[0079] 34 table operation table

[0080] 70 parts.

Claims

1. A machine tool (1) for machining and processing plate-shaped workpieces (22), the machine tool having a machine table (6), the machine table comprising at least two longitudinal frame modules (2) and at least two transverse frame modules (3), wherein each longitudinal frame module (2) is connected to the at least two transverse frame modules (3) by fastening, and each longitudinal frame module (2) comprises an upper flange (8) and a lower flange (9), wherein the upper flange and the lower flange are formed by metal profiles such as pipes, and the upper flange and the lower flange are connected to each other via columns (10) spaced apart from each other, wherein a guide rail (7) for movably mounting a tool is supported on at least one of the upper flanges (8), characterized in that The column (10) on each longitudinal frame module (2) is welded to the upper flange (8) and the lower flange (9) and each longitudinal frame module (2) is connected to the at least two transverse frame modules (3, 3') via mechanical fastening to form the frame of the machine tool table (6) of the machine tool (1).

2. The machine tool according to claim 1, characterized in that: The at least two longitudinal frame modules (2) and the at least two transverse frame modules (3) are surface treated at the contact points.

3. The machine tool according to claim 1 or 2, characterized in that: Each transverse frame module (3) comprises a lower basic profile (14) and an upper horizontal basic profile (13), which are connected to each other via one or more supporting profiles.

4. A machine tool according to any one of the preceding claims, characterised in that The movable gantry (4) is held on two guide rails (7) installed at a distance from each other.

5. The machine tool according to claim 4, characterized in that: An articulated robot arm (21) and / or a tool (25) is held on the movable gantry (4).

6. The machine tool according to claim 4 or 5, characterized in that: A lifting device (24) for handling a workpiece (22) to be processed is held on the movable gantry (4).

7. A machine tool according to any one of the preceding claims, characterised in that A plurality of mounting plates (11) for supporting the guide rail (7) are fixed on the upper flange (8).

8. A machine tool according to any one of the preceding claims, characterised in that The at least two transverse frame modules (3) are bolted to the longitudinal frame modules (2).

9. A machine tool according to any one of the preceding claims, characterised in that A portion of the transverse frame module (3) and a portion of the longitudinal frame module (2) are supported together on a base plate (16).

10. A machine tool according to any one of the preceding claims, characterised in that On at least one side of the longitudinal frame module (2), the guide rail (7) and the upper flange (8) protrude beyond the end of the transverse frame module (3) there.

11. A machine tool according to any one of the preceding claims, characterised in that The machine tool table (6) forms a flat support structure for supporting a plate-shaped workpiece (22).

12. A method for assembling a machine tool (1), comprising the following steps: - assembling at least two longitudinal frame modules (2), each longitudinal frame module comprising an upper flange (8) and a lower flange (9), said upper flange and lower flange being connected to each other via mutually spaced columns (10), wherein said columns (10) are welded to said upper flange (8) and lower flange (9); - assembling at least two transverse frame modules (3, 3'), each transverse frame module comprising a lower base profile (14) and at least one supporting profile (15, 19) perpendicular or inclined to the base profile (14), - surface treatment of each longitudinal frame module (2) and transverse frame module (3, 3'), and, - connecting each of the longitudinal frame modules (2) to the at least two transverse frame modules (3, 3') via mechanical fastening to form the frame of a machine table (6) of the machine tool (1).

13. The method according to claim 12, characterized in that During the surface treatment, the longitudinal frame modules (2) and the transverse frame modules (3) are coated.

14. The method according to claim 12 or 13, characterized in that A guide rail (7) for removably mounting tools and / or worktops is fixed to each upper flange (8) of the longitudinal frame module (2).

15. The method according to any one of claims 12 to 14, characterized in that The guide rail (7) is mounted on the upper flange (8) of the longitudinal frame module (2) so as to be mounted on the frame of the machine tool table. The guide rail (7) has a movable gantry (4) mounted thereon, and the gantry has a lifting device for handling a workpiece (22).

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