PROCESSING DEVICE

Description

Technical area

[0001] The invention relates to a processing device, in particular for processing workpieces made of wood, wood materials, plastic or the like, in particular according to the preamble of claim 1, and a method for operating such a processing device. State of the art

[0002] Machining devices for machining workpieces, in particular for machining workpieces made of wood, wood-based materials, plastic, or the like, are widely known in the prior art. Such machining devices typically comprise a workpiece table with a workpiece holder, by means of which a workpiece can be arranged and held in a clamped position at least temporarily, in order to machine the workpiece while clamped. Such workpiece tables with workpiece holders can be designed to be essentially stationary or movable by means of feed devices.

[0003] In this case, if the workpiece table with the workpiece holder is essentially stationary, the tool for machining the workpiece can be brought close to the workpiece itself in order to effect machining of the workpiece due to a generated relative movement of the workpiece and the tool.

[0004] Alternatively, in the case of a substantially movable design of the workpiece table with the workpiece holder, the workpiece can be brought towards the tool itself for machining in order to effect machining of the workpiece due to a generated relative movement of the workpiece and the tool.

[0005] For this purpose, the machining device can, for example, have a stationary or movable gantry, a stationary or movable boom, or similar device, on which the tool for machining the workpiece can be guided in a stationary or movable manner, in order to be able to carry out the intended machining on the workpiece together with any possible displacement of the workpiece. In this case, either the workpiece can be guided past the tool or vice versa, or both the workpiece and the tool can be moved during machining, thus providing a targeted relative movement between the tool and workpiece, for example, to enable the workpiece to be machined along a side or edge.

[0006] For example, DE 101 37 839 A1 discloses the arrangement of two workpiece tables that can be moved side by side, with either one workpiece table or the other holding the tool with its workpiece holder, while the workpiece table is guided past the tool using its feed mechanism to machine a side edge of the workpiece. Subsequently, one workpiece table can be moved to a transfer position with the other workpiece table, and the workpiece can be transferred from one workpiece table directly to the other workpiece table, allowing the other, as yet unmachined, side edge of the workpiece to be machined.

[0007] However, the required height of the workpiece for clamping remains constant because the clamping jaws of the tool table's workpiece holder are fixed and the height of the lower clamping jaws on the tool table is fixed. However, if a workpiece with a contour that has a different height on both opposite side edges is to be machined, for example because the respective lower edges are to be offset from one another, this workpiece cannot simply be machined using the machining device designed in this way because there is no defined reclamping condition when re-clamping from one workpiece table to another.

[0008] When manufacturing window frame components, especially those made of wood, a very large number of different profiles must be created, which is usually done by milling. This usually involves machining both the long and narrow sides of the frame components. In order to allow for the increased incidence of light that is increasingly desired, particularly in living spaces, the widths of window frame components are being reduced more and more. This means that only very limited free clamping surfaces are available on the window frame components for holding the window frame components in the clamping jaws of the workpiece holder for machining the workpiece. This problem occurs more and more frequently when a first long side of the window frame component has already been profiled.

[0009] In workpiece tables according to DE 101 37 839 A1, the clamping jaws of the workpiece holder act as fixing elements on the lower and upper support surfaces of the window frame part, thus clamping the workpiece between them. While this has the advantage that the workpiece can maintain a constant vertical height and, if necessary, a constant lateral position during clamping and re-clamping processes, it also has the disadvantage that clamping is only possible on the upper and lower support surfaces.

[0010] However, with modern window frame parts as workpieces, it is increasingly necessary that the workpiece can also be clamped in already machined areas of the lateral profiling, for example in folds that have already been created.

[0011] EP 1 992 464 A2 discloses a processing device according to the preamble of claim 1.

[0012] WO 2010 / 041285 A1 discloses a machining device with a workpiece table and a feeding device, wherein it is not disclosed that the at least one workpiece is positionable in three dimensions with respect to the at least one workpiece table.

[0013] IT PC20 110 018 A1 discloses a machining device with two workpiece tables and a feeding device, but it is not disclosed that the at least one workpiece can be positioned in three dimensions with respect to the at least one workpiece table.

[0014] EP 2 067 586 A2 discloses a machining device with two workpiece tables and a feeding device, but it is not disclosed that the at least one workpiece can be positioned in three dimensions with respect to the at least one workpiece table. Description of the invention, task, solution, advantages

[0015] The object of the invention is to create a machining device that enables a significant increase in machining efficiency even with shorter workpieces. The object of the invention is also to create a corresponding method.

[0016] This object of the processing device is achieved with the features of claim 1.

[0017] One embodiment of the invention relates to a processing device, in particular for processing workpieces made of wood, wood-based materials, plastic or the like, comprising at least one workpiece table with a workpiece holder for holding at least one workpiece and with a feeding device for feeding at least one workpiece to the at least one workpiece table, wherein the at least one workpiece can be positioned in three dimensions with respect to the at least one workpiece table. In this case, a workpiece can be fed to a workpiece table and positioned thereon and held by it, or several workpieces can be fed to a workpiece table, positioned thereon and held by it. If several workpiece tables are provided, one or more workpieces can be fed to one or the other workpiece table and positioned thereon and held by it.This makes it possible for more than one workpiece to be held on a workpiece table at the same time and to be machined essentially in one clamping setup, i.e. more or less simultaneously. By providing, for example, two workpiece tables, the workpieces clamped in a workpiece table can be machined completely, whereby workpieces from one or the other workpiece table can then advantageously be machined alternately on one tool. This ensures that at least one workpiece can be clamped not only on its top and bottom, but can also be clamped on other surfaces, such as folds, edges, etc. created during machining. This means that after an initial clamping on the top and bottom of the workpiece, after initial machining, it can be reclamped on other surfaces for clamping in order to be able to hold the workpiece securely and to be able to machine it further.This also results in greater machining efficiency and quality if at least one workpiece can be machined on three sides in a single setup—for example, on one long side and two short sides. If two or more workpieces are clamped in a single setup, efficiency can be further increased because workpiece changeover time is not required after each individual workpiece.

[0018] According to the invention, one or two or more workpiece tables are provided. These are each independently movable and can clamp one or more workpieces independently of each other. With more than one workpiece table, efficiency is further increased.

[0019] According to the invention, the at least one workpiece table, or at least one of the workpiece tables, or each of the workpiece tables, is displaceable at least in its longitudinal direction relative to the feed device. This allows the at least one workpiece to be positioned in a different position on said workpiece table depending on the position to which the corresponding workpiece table is moved. This also allows multiple workpieces to be positioned at different positions on the workpiece table.

[0020] According to the invention, the feed device is displaceable in at least one direction relative to the at least one workpiece table. This allows the at least one workpiece to be individually positioned on said workpiece table and, in particular, also individually re-clamped.

[0021] According to the invention, the at least one workpiece table or one of the workpiece tables or each of the workpiece tables is displaceable in its longitudinal direction relative to the feed device, and the feed device is displaceable in two directions relative to said respective workpiece table. As a result, the three dimensions of displacement are distributed between said respective workpiece table and said feed device, thus enabling a simple design of the processing device.

[0022] According to the invention, the said workpiece table or the respective workpiece tables can be displaced in its or their longitudinal direction by means of a feed unit.

[0023] According to the invention, the respective workpiece table has a workpiece holder with a number of clamping elements arranged at a distance from one another in the longitudinal direction. This allows at least one workpiece or several workpieces to be firmly clamped in the longitudinal direction of the respective workpiece table, whereby several workpieces can also be arranged one after the other in their longitudinal direction.

[0024] According to the invention, a clamping element has at least one pair of clamping jaws with two clamping jaws, wherein at least one of the clamping jaws is displaceable relative to the other clamping jaw. This allows at least one workpiece to be securely clamped between the clamping jaws. The clamping elements are arranged at a distance from one another such that end machining on a narrow side of a workpiece can also be carried out between two clamping elements. It is advantageous if the workpiece can be machined, in particular, over its full height on its narrow side(s). The distance between the clamping elements is advantageously large enough that a tool, such as a milling head, can move between the clamping elements in order to machine the narrow side of the workpiece and profile it over the full height of the workpiece in one operation or in two or more operations.This means that a corresponding tool can be moved between two clamping elements because the distance between the clamping elements is large enough for the tool to pass through and machine the workpiece. The distance between the clamping elements is advantageously between 200 and 800 mm, particularly between 300 and 700 mm, and even more advantageously between 400 and 500 mm, so that a milling head of approximately 90 to 200 mm can still move between the clamping elements to machine the workpiece end on one narrow side.

[0025] According to the invention, a clamping element comprises two pairs of clamping jaws, each with two clamping jaws, wherein at least one of the clamping jaws of a pair is displaceable relative to the other clamping jaw of the pair. It is advantageous if the displaceable clamping jaws are connected to one another and displaceable together. Alternatively, the displaceable clamping jaws can be designed to be displaceable independently of one another.

[0026] Short tools can also be advantageously held with just one clamping element, allowing the workpiece to be machined on at least one of its long sides, one narrow side, and optionally also a second narrow side. Longer workpieces, on the other hand, can also be clamped by two or more clamping elements.

[0027] It is also advantageous if the clamping jaws of a pair each protrude in a direction perpendicular to the longitudinal direction. This allows a workpiece to be clamped along one long side while the other long side of the workpiece can be machined.

[0028] According to the invention, the clamping jaws of a first pair protrude in a first direction perpendicular to the longitudinal direction, while the clamping jaws of a second pair protrude in the direction opposite to the first direction, perpendicular to the longitudinal direction. This creates two clamping areas that are adjacent to each other in the longitudinal direction of the workpiece or the workpiece table, allowing easy re-clamping between the clamping areas.

[0029] It is also advantageous if the feed device can be displaced in both directions by means of at least one feed unit, preferably two feed units. This allows independent displacement in both directions.

[0030] According to the inventive concept, it is expedient if at least one workpiece can be fed to at least one of the workpiece tables by means of the feeding device in such a way that one workpiece or a plurality of workpieces can be held simultaneously by one of the workpiece tables. The feeding device serves to ensure that workpieces can be fed one after the other to one or the other workpiece table in order to achieve a high level of efficiency. While at least one workpiece or two or more workpieces are clamped in one workpiece table and are thereby moved and machined using a tool, the feeding device can, in parallel, transport at least one workpiece or two or more workpieces to another workpiece table and position them there so that they can be moved with this workpiece table and machined accordingly.In this case, the at least one workpiece is advantageously re-clamped in the respective workpiece table itself and not from one workpiece table to another workpiece table, so that the machining of workpieces in the respective workpiece table takes place autonomously and no inclusion of several workpiece tables is necessary for the machining of a single workpiece.

[0031] It is also advantageous if the feeding device can simultaneously feed more than one workpiece, i.e., two or more workpieces, to at least one of the workpiece tables in such a way that a plurality of workpieces can be held simultaneously by one of the workpiece tables. The multiple workpieces can be fed into the workpiece table simultaneously or one after the other.

[0032] It is also advantageous if the feed device has a number of clamping elements arranged at a distance from one another in the longitudinal direction of the feed device. This allows even a longer workpiece to be securely held so that it does not slip during feeding. The clamping elements can also be arranged in such a way that several workpieces can be securely arranged, for example, one after the other in their longitudinal direction, so that they can be fed to the workpiece table by the feed device simultaneously.

[0033] It is also advantageous if a clamping element has at least one pair of clamping jaws with two clamping jaws, wherein at least one of the clamping jaws is displaceable relative to the other clamping jaw. This allows a workpiece to be clamped between the clamping jaws and thus held in place, to be held and moved by the feed device. The feed device thus allows at least one workpiece to be picked up and transported to one of the workpiece tables, or at least one workpiece to be removed from a workpiece table and transported away.

[0034] It is also advantageous if a clamping element has two pairs of clamping jaws, each with two clamping jaws, with at least one of the clamping jaws of a pair being movable relative to the other jaw of the pair. This allows for the targeted clamping of at least one workpiece. The displacement can be achieved, for example, pneumatically, hydraulically, or by electric motor, which is simple to implement and ensures long-term operational reliability.

[0035] It is also advantageous if the clamping jaws of a pair each protrude in a direction perpendicular to the longitudinal direction of the feed device. This allows even longer workpieces to be gripped along the feed device and fed to a workpiece table, or multiple workpieces can be gripped along the feed device and fed to a workpiece table.

[0036] In a further embodiment of the invention, it is expedient for the clamping jaws of a first pair to protrude in a first direction perpendicular to the longitudinal direction, while the clamping jaws of a second pair protrude in a direction opposite to the first direction perpendicular to the longitudinal direction. This allows workpieces or other elements to be gripped and held by the feed device on opposite longitudinal sides of the feed device.

[0037] It is also expedient in an advantageous embodiment of a machining device if the feed device has, at least in a central region, viewed in the longitudinal direction, pairs of clamping jaws that are spaced apart from one another and fixed relative to one another in the longitudinal direction. This allows the respective workpiece to be firmly clamped, and the spacing of the pairs of clamping jaws can be selected such that workpieces with typical workpiece lengths can be securely held. If necessary, workpiece machining can also be performed on a narrow side if a tool can be moved between two adjacent pairs of clamping jaws.

[0038] It is also expedient if the feed device has at least one pair of clamping jaws at least at one of its end regions, viewed in the longitudinal direction, which are arranged to be displaceable in the longitudinal direction. This allows the distance between two adjacent pairs of clamping jaws to be adjusted, particularly at the ends of the feed device, viewed in its longitudinal direction, in order to be able to hold even shorter workpieces with at least two pairs of clamping jaws. It is also advantageous if the feed device has at least one pair of clamping jaws at both of its end regions, viewed in the longitudinal direction, which are arranged to be displaceable in the longitudinal direction.

[0039] It is particularly advantageous if the feed device has at least two pairs of clamping jaws at at least one of its end regions, or even at both of its end regions, viewed in the longitudinal direction. This allows short workpieces to be held particularly well and fed by the feed device to the respective workpiece table.

[0040] It is also advantageous if the movable clamping jaw pair(s) of the feed device are adjustable and lockable in their longitudinal position. This allows the distance between the movable clamping jaw pairs to be adjusted manually or automatically.

[0041] It is particularly advantageous if the movable clamping jaw pair(s) can be moved by means of a drive unit. The movement can be performed pneumatically, hydraulically, or electromotively using a pneumatic, hydraulic, or electromotive actuator.

[0042] According to a further aspect, it is expedient if one of the clamping jaws is rotatable relative to the other clamping jaw, in particular by 90°. Thus, it is particularly advantageous if the upper clamping jaw is rotatable in order to release the workpiece there for machining. The rotation can advantageously be by 90°, for example.

[0043] The problem of the method is solved with the features of claim 5.

[0044] An embodiment of the invention relates to a method for operating a processing device, in particular for processing workpieces made of wood, wood materials, plastic or the like, having a workpiece table with a workpiece holder for holding at least one workpiece and having a feeding device for feeding at least one workpiece to the workpiece table, wherein the workpiece is guided to the workpiece table by means of the feeding device and positioned thereon, wherein the workpiece is positioned in three dimensions with respect to the workpiece table.

[0045] According to the invention, it is expedient if the workpiece table is displaced in its longitudinal direction relative to the feed device and the feed device is displaced in two directions relative to the workpiece table in order to position a workpiece to the feed table.

[0046] It is also advantageous if a workpiece can be clamped in the workpiece holder of the workpiece table. Multiple workpieces can also be clamped side by side in the longitudinal direction.

[0047] Furthermore, it is advantageous if the workpiece holder has pairs of clamping jaws by means of which a workpiece can be clamped in the workpiece holder of the workpiece table.

[0048] It is particularly advantageous if the workpiece holder has at least two sets of pairs of clamping jaws, by means of which a workpiece can be clamped in the workpiece holder of the workpiece table, wherein the workpiece can be transferred from a first set of pairs to a second set of pairs.

[0049] Furthermore, it is also advantageous if the workpiece is machined on one long side by means of at least one tool after being clamped in the workpiece holder.

[0050] According to the invention, it is also advantageous if the workpiece, after being clamped in the workpiece holder, is machined on a narrow side with end machining by means of at least one tool.

[0051] It is particularly advantageous if, after clamping the workpiece in the workpiece holder, the end faces are machined using at least one tool on both narrow sides. This allows for particularly effective machining.

[0052] It is particularly advantageous if, after machining the workpiece while clamped in one set of clamping jaws, the workpiece is re-clamped into the second set of clamping jaws for further machining of the workpiece, in particular on a second long side and / or on at least one of the narrow sides.

[0053] It is also advantageous if the workpiece is removed from the workpiece table by the feeding device after processing.

[0054] It is also particularly advantageous if a glass strip or other element can be removed from a workpiece by means of the feeding device with at least some of its clamping jaw pairs.

[0055] It is also advantageous if a fitting, an RFID chip or another element can be fed to a workpiece by means of the feeding device with at least some of its clamping jaw pairs.

[0056] Further advantageous embodiments are described by the following description of the figures and by the subclaims. Short description of the drawings

[0057] The invention will be explained in more detail below on the basis of at least one embodiment with reference to the drawings. They show: Figure 1 shows a schematic representation of a section of a processing device, Figure 2 shows a schematic representation of a processing device, Figure 3 shows a sectional representation through a workpiece holder, Figure 4 shows a sectional representation through a workpiece holder in a different operating position, Figure 5 shows a sectional representation through a workpiece holder in a different operating position, Figure 6 shows a sectional representation through a workpiece holder in a different operating position, Figure 7 shows a sectional representation through a workpiece holder in a different operating position, Figure 8 shows a schematic representation of an embodiment of a processing device, Figure 9 shows a schematic representation of a section of the processing device according to Figure 8 , Figure 10 is a representation of a feeding device, and Figure 11 is a representation of a workpiece clamped in a clamping element of a workpiece table in section. Preferred embodiment of the invention

[0058] The Figures 1 and 2 show a processing device 1, in particular for processing workpieces 5 made of wood, wood-based materials, plastic, or the like. The workpieces 5 can, for example, be elongated, beam-like workpieces or flat, two-dimensional, board-like workpieces.

[0059] The machining device 1 comprises a workpiece table 2 with a workpiece holder 3 with clamping elements 4 for clamping a workpiece 5, by means of which workpieces 5 can be securely held for machining. The workpiece table 2 is preferably connected to a feed unit, by means of which the workpiece table 2 is designed to be displaceable in direction 13. Direction 13 is advantageously oriented perpendicular to direction 11 and direction 12.

[0060] Furthermore, a feeding device 6 is provided, which serves to feed a workpiece 5 to the workpiece holder 3 of the workpiece table 2 and to place the workpiece 5 on the workpiece table 2.

[0061] Furthermore, a device frame 7 is provided, on which the feed device 6, also called a manipulator, is displaceably mounted. A guide device 8 is also provided, to which the feed device 6 is further displaceably hinged. Thus, the feed device 6 is displaceably mounted on one side on the device frame 7 and on the other side on the guide device 8. The feed device 6, with its elongated support element 9 and the clamping elements 10 arranged thereon, can be moved both in the vertical direction 11 and in the lateral direction 12, which is oriented perpendicular to the direction 11.

[0062] The guide device 8 is advantageously designed as a gantry or as a cross member, on which a tool carriage 14 is displaceably arranged in order to be able to displace a tool 15 in direction 12 and / or in direction 11. This allows the workpiece 5 to be displaced in the longitudinal direction of the workpiece table 2 and to be guided past the tool 15 for processing.

[0063] Furthermore, a feed and / or discharge table 16 can be provided, by means of which the workpieces 5 can be fed and / or removed, so that the processing device 1 can be provided with a supply of workpieces 5 in order to be able to process them efficiently or to remove them from the processing device 1 and to feed them for further processing or order picking.

[0064] According to the invention, clamping of the workpieces 5 is provided for 3-dimensional displacement or positioning. For this purpose, three axes or three manipulation directions in the x, y, and z directions are provided for the so-called 3-dimensional clamping of the workpieces 5. The x direction represents direction 13, the y direction represents direction 12, and the z direction represents direction 11.

[0065] The processing device 1 of the Figures 1 and 2 represents a device in which the workpieces 5 can be displaced relative to the workpiece table 2 along the three axes mentioned and thus the clamping of the workpiece 5 can be carried out in such a way that it can be displaced in the directions mentioned during the transition from one clamping to a second clamping.

[0066] In this case, the various possibilities for displacing the workpiece 5 relative to the workpiece table 2 are distributed between the workpiece table 2 and the feeding device 6 to achieve an attractive and, in particular, economical fixture concept. In principle, various combinations for distributing the displacement options along the aforementioned directions 11, 12, and 13 are possible.

[0067] The Figures 1 and 2 show a processing device 1 in which the following combination of assignments of the directions is implemented: Displacement along the x-axis: workpiece table, displacement along the y-axis: feeding device and displacement along the z-axis: feeding device.

[0068] The workpiece table 2 is preferably designed as an elongated table with a correspondingly elongated base body 17, on which the workpiece holder 3 with the clamping elements 4 arranged adjacent to one another is arranged. The clamping elements 4 are arranged adjacent to one another along the x-direction 13, so that a workpiece 5 can be held with the clamping elements 4, wherein the workpiece 5 can be held by the clamping elements 4 oriented along the x-direction 13. Since the workpiece table 2 with its feed device can be displaced in the x-direction 13, the workpiece holder 3 connected to it can also be displaced in the x-direction and thus the clamping elements 4 can also be displaced in the x-direction.As a result, before positioning the workpiece 5 in the clamping elements 4 of the workpiece table 2, the workpiece table 2 can be displaced in the x-direction 13 in order to define the position of the workpiece 5 in the x-direction 13 relative to the workpiece table 2.

[0069] The clamping elements 4 consist of two clamping jaws 18, 19 that can be moved relative to one another in the z-direction to clamp a workpiece 5 between them. Alternatively, other clamping elements can also be provided. The clamping jaws 18, 19 protrude in the y-direction 12 to clamp a workpiece 5 between them. It is advantageous if the clamping jaws 18, 19 are designed such that the clamping jaws 18, 19 are arranged in pairs such that they protrude in both y-directions, thus allowing two clampings between the two pairs of clamping jaws 18, 19.

[0070] The distance between adjacent clamping elements 4 can advantageously be selected to be sufficiently large in order to be able to carry out end machining on one narrow side or advantageously also on both narrow sides of the workpiece 5, i.e. on the short workpiece sides, between two adjacent clamping elements 4 and the longitudinal machining of one long side of the workpiece 5 in one clamping operation.

[0071] The feed device 6 also has an elongated base body or an elongated support element 9, on which the clamping elements 10 with two clamping jaws 20, 21 projecting in the y-direction 12 and displaceable in the z-direction 11 are arranged adjacent to and spaced from one another. The feed device 6 itself is designed to be displaceable in the y-direction and the z-direction. This allows the workpieces 5 to be displaced in the x-, y-, and z-directions relative to the clamping jaws 18, 19 both when being inserted into the clamping jaws 18, 19 of the workpiece holder 3 and when being re-clamped between machining operations from one pair of clamping jaws to the other pair of clamping jaws.

[0072] It is also possible for several workpieces 5 to be arranged next to one another in the x-direction and to be clamped in the clamping jaws 18, 19 at the same time so that they can be machined simultaneously.

[0073] With the feeding device 6, the individual workpieces 5 can be picked up simultaneously next to one another, so that their position can also be changed simultaneously in the x, y and z directions.

[0074] When inserting workpieces 5, processing already carried out on the raw part can be taken into account, such as previously cut-out glass strips, so that the workpiece 5 can already be clamped in an existing rebate, if necessary, instead of on the top and bottom of the workpiece 5.

[0075] By offsetting the workpieces 5, parts with a negative clamping bridge can also be picked up and clamped downwards. Normally, the parts are clamped in the clamping device at the top and bottom. The overlap of the two clamping surfaces is the so-called clamping bridge. The trend is moving toward profiles with very small, no, or even negative clamping bridges. Here, there is no overlap between the top and bottom. Workpiece 5 must then be clamped in the rebate.

[0076] The device according to the invention can be used advantageously as described below.

[0077] The workpiece 5 is picked up, for example, as a raw part by the feeding device 6 from the pick-up position of the workpiece inlet on the feeding table 16.

[0078] The workpiece 5 is then inserted into the clamping jaws 18, 19 of the workpiece holder by means of the feed device 6 for the first clamping. The position of the workpiece 5 can be variably aligned in the y- and z-directions, depending on the intended machining operations to be performed on the workpiece 5, whereby the y- and z-alignment can be selected by moving the feed device 6 along the axes of the feed device 6.

[0079] The Figure 3 shows a clamping element 4 of the workpiece holder 3. Two pairs of clamping jaws 18, 19 are provided, with a workpiece 5 being shown held between the clamping jaws 18, 19 on the left side of the clamping element 4.

[0080] The workpiece 5 can be gripped and inserted into the clamping device shown using the clamping elements 10 of the feed device 6. The clamping jaws 18, 19 can grip and clamp the workpiece 5.

[0081] The workpiece table 2 can be moved in the x-direction by means of a feed device, in particular into the machining area 24, in order to machine the workpiece 5 by means of a tool 15, such as to carry out longitudinal profiling, end machining and / or drilling.

[0082] The workpiece table 2 then moves back in the x-direction into the loading area 22, in which the feeding device inserts, clamps and / or removes the workpiece 5.

[0083] The workpiece 5 is removed from the clamping jaws 18, 19 by the feeding device 6 and is moved in the y- and z-direction from the left side of the clamping jaws 18, 19, see Figure 4 , to the right side of the clamping jaws 18, 19 according to arrow 23. The workpiece 5 is guided into the clamping jaws 18, 19 on the right side of the clamping jaws 18, 19 and is inserted and clamped there for the second clamping, see Figure 5 Depending on the desired machining operation, the workpiece 5 can also be inserted into the clamping jaws 18, 19 with an offset in the x-direction, for example to enable drilling from above if a collet has covered this area in the first clamping operation and therefore drilling was not possible.

[0084] The workpiece 5 can be positioned accordingly in the x-, y- and / or z-direction and inserted into the clamping jaws 18, 19.

[0085] The workpiece table 2 then moves again in the x-direction into the machining area 24 in order to profile the workpiece 5 on the second longitudinal side and, if necessary, to carry out further machining operations.

[0086] The workpiece table 2 then moves back into the loading area 22 and the finished workpiece 5 can be removed by the feeding device 6 and placed in the deposit position at the workpiece outlet.

[0087] The device described above has the advantage that a variety of clamping options can be provided for clamping and machining the workpiece 5. This is advantageously achieved by the ability of the workpiece 5 to be displaced in the three directions: x-direction, y-direction, and z-direction.

[0088] As a result, the upper and / or lower surfaces required for clamping in previous devices can be released for machining operations during reclamping in order to allow machining which processes the upper or lower surface of the workpiece 5 in such a way that the upper or lower surface is left only apart from small webs or is completely removed.

[0089] This minimizes downtime and / or handling times, as multiple workpieces 5 can be positioned and processed simultaneously. This can be achieved with maximum precision in part production.

[0090] It is preferred if the feed device 6 is equipped with a plurality of clamping elements 10 arranged side by side at a distance from one another in the x-direction. At least the middle clamping elements 10 are arranged at a distance from one another in an advantageously fixed and rather elongated grid.

[0091] It is advantageous if at least one clamping element 10 is arranged at at least one lateral end of the feed device 6, so that it can be displaced in the x-direction. This allows the spacing of the clamping elements 10 to be changed to adapt to the length of a workpiece 5.

[0092] The figures show that the workpieces 5 can be held horizontally next to each other in different positions by the two pairs of clamping jaws of a workpiece table.

[0093] Alternatively, at least two feed tables can be provided for feeding in such a way that the finished parts and the raw parts can be placed one above the other.

[0094] An alignment station can also be provided, by means of which the workpieces can be aligned and, in particular, pressed straight, in particular in the x-direction.

[0095] It is also possible that in one embodiment of the invention a double feeding device is provided, by means of which two workpieces can be fed and inserted into the clamping jaws at the same time.

[0096] A display of double loading can also be provided, in particular for manual workpiece loading of the device.

[0097] The Figures 6 and 7show further illustrations of how a workpiece 105 can be clamped by means of the clamping jaws, wherein the workpiece 105 is not clamped on the top and bottom, but on surfaces that are arranged adjacent to the top and bottom.

[0098] The Figures 8 and 9 show a further embodiment of a processing device 101, in particular for processing workpieces 105 made of wood, wood-based materials, plastic, or the like. The workpieces 105 can, for example, be elongated, beam-like workpieces 105 or flat, two-dimensional, board-like workpieces 105.

[0099] The machining device 101 comprises a workpiece table 102 with a workpiece holder 103 with clamping elements 104 for clamping a workpiece 105, by means of which workpieces 105 can be securely held for machining. The workpiece table 102 is preferably connected to a feed unit, by means of which the workpiece table 102 is designed to be displaceable in its longitudinal direction in direction 113. In this case, direction 113 is advantageously oriented perpendicular to direction 111 and direction 112.

[0100] Furthermore, a feeding device 106 is provided, which serves to feed a workpiece 105 to the workpiece holder 103 of the workpiece table 102 and to place the workpiece 105 on the workpiece table 102.

[0101] Furthermore, a fixture frame 107 is provided, on which the feed device 106, also called a manipulator, is displaceably arranged. A guide device 108 is also provided, to which the feed device 106 is further displaceably hinged. Thus, the feed device 106 is displaceably arranged on one side on the fixture frame 107 and on the other side on the guide device 108. The guide device 108 also serves to displaceably arrange and guide tools 115 with a tool carriage 114 on it. The at least one tool 115 is mounted on one side of the guide device 108, while the feed device 106 is displaceably mounted on the other side of the guide device 108. Alternatively, a second fixture frame 107 can also be arranged adjacent to the guide device 108, so that the feed device 106 is displaceably guided by means of two fixture frames.Then it is also advantageous if tools 115 are arranged on both sides of the guide device 108 in a displaceable manner, for example by means of tool slides 114.

[0102] The feeding device 106 with its elongated support element 109 and the clamping elements 110 arranged thereon can be moved both in the vertical direction 111 and in the lateral direction 112, which is oriented perpendicular to the direction 111.

[0103] The clamping elements 110 are arranged at a distance from one another. Advantageously, the clamping elements 110 of the feed device 106 are arranged fixedly relative to one another, or in another exemplary embodiment, at least one clamping element or two or more clamping elements 110 of the feed device 106 are arranged displaceably at one end region of the feed device, or alternatively at both end regions of the feed device 106.

[0104] The guide device 108 is advantageously designed as a gantry or as a cross member, on which a tool carriage 114 is displaceably arranged in order to be able to displace a tool 115 in direction 112 and / or in direction 111. This allows the workpiece 105 to be displaced in the longitudinal direction of the workpiece table 102 and to be guided past the tool 115 for processing.

[0105] Furthermore, a feed and / or discharge table 116 can be provided, by means of which the workpieces 105 can be fed and / or removed, so that the processing device 101 can be provided with a supply of workpieces 105 in order to be able to process them efficiently or to remove them from the processing device 101 and to feed them for further processing or picking.

[0106] The two Figures 8 and 9Each shows only one workpiece table 102. Alternatively, two or more workpiece tables 102 can be arranged parallel to one another and guided so that they can be displaced next to one another. For this purpose, the respective workpiece tables 102 can be guided, for example, along a rail and displaced at a distance from one another.

[0107] According to an inventive concept, clamping of the workpieces is provided during 3-dimensional displacement or positioning. For this purpose, three axes or three manipulation directions in the x, y, and z directions are provided for the so-called 3-dimensional clamping of the workpieces 105. The x direction represents direction 113, the y direction represents direction 112, and the z direction represents direction 111.

[0108] The processing device 101 of the Figures 8 and 9represents a device in which the workpieces 105 individually or two or more workpieces 105 can be displaced relative to the workpiece table 102 along the three axes mentioned, and thus the clamping of the workpiece 105 or the plurality of workpieces can be carried out in such a way that it can be displaced in the directions mentioned during the transition from one clamping to a second clamping.

[0109] In this case, the various possibilities for displacing the workpiece 105 relative to a workpiece table 102 are distributed between the workpiece table 102 and the feed device 106 to achieve an attractive and, in particular, economical fixture concept. In principle, various combinations for distributing the displacement possibilities along the aforementioned directions 111, 112, and 113 are possible.

[0110] The Figures 8 and 9show a processing device 101 in which the following combination of assignments of the directions is implemented: Displacement along the x-axis: workpiece table 102, displacement along the y-axis: feeder 106 and displacement along the z-axis: feeder 106.

[0111] The individual workpiece table 102, or in the case of more than one workpiece table, the respective workpiece tables, is / are preferably designed as an elongated table with a correspondingly elongated base body 117, on which the workpiece holder 103 with the clamping elements 104 arranged adjacent to one another is arranged. The clamping elements 104 are arranged adjacent to one another along the x-direction 113, so that a workpiece 105 can be held with the clamping elements 104, wherein the workpiece 105 can be held by the clamping elements 104 oriented along the x-direction 113. Since the respective workpiece table 102 with its feed device can be displaced in the x-direction 113, the workpiece holder 103 connected to it can also be displaced in the x-direction and thus the clamping elements 104 can also be displaced in the x-direction.As a result, before positioning the workpiece 105 in the clamping elements 104 of the workpiece table 102, the respective workpiece table 102 can be displaced in the x-direction 113 in order to define the position of the workpiece 105 in the x-direction 113 relative to the workpiece table 102.

[0112] The clamping elements 104 consist of two clamping jaws 118, 119 that are movable relative to one another in the z-direction in order to clamp a workpiece 105 between them. It can also be advantageous if, for example, the lower clamping jaw is stationary in the z-direction and the upper clamping jaw is movable in the z-direction. Alternatively, other clamping elements can also be provided. The clamping jaws 118, 119 protrude in the y-direction 112 in order to clamp a workpiece 105 between them. It is advantageous if the clamping jaws 118, 119 are arranged in pairs in such a way that they protrude in both y-directions, so that two clampings are possible between the two pairs of clamping jaws 118, 119.

[0113] It can also be advantageous if the upper and / or lower clamping jaws can be rotated by 90°, for example, in order to make room for machining.

[0114] The distance between adjacent clamping elements 104 can advantageously be selected to be sufficiently large in order to be able to carry out end machining on one narrow side or advantageously also on both narrow sides of the workpiece 105, i.e. on the short workpiece sides, between two adjacent clamping elements 104 and the longitudinal machining of one long side of the workpiece 105 in one clamping operation.

[0115] The feed device 106 also has an elongated base body 117 or a support element 109, on which the clamping elements 110 with two clamping jaws 120, 121 projecting in the y-direction 112 and displaceable in the z-direction 111 are arranged adjacent to and spaced from one another. The feed device 106 itself is designed to be displaceable in the y-direction and the z-direction. This allows the workpieces 105 to be displaced in the x-, y-, and z-directions relative to the clamping jaws 118, 119 both when being inserted into the clamping jaws 118, 119 of the workpiece holder 103 and when being re-clamped between machining operations from one pair of clamping jaws to the other pair of clamping jaws.

[0116] It is also possible for several workpieces 105 to be arranged next to one another in the x-direction and to be clamped in the clamping jaws 118, 119 at the same time so that they can be machined simultaneously.

[0117] With the feeding device 106, the several individual workpieces 105 can be picked up simultaneously next to one another, so that their position can also be changed simultaneously in the x-, y- and z-directions.

[0118] When inserting workpieces 105, any processing performed on the blank can already be taken into account, such as previously removed glazing beads, so that the workpiece 105 can, if necessary, already be clamped in an existing rebate instead of on the top and bottom of the workpiece 105. A glazing bead, for example, can also be removed from the workpiece 105 using the feed device 106. Alternatively, other elements can also be removed or removed. Furthermore, elements such as a fitting, an RFID chip, or other elements can also be fed to the workpiece 105 on the workpiece table 102 using the feed device 106.

[0119] By offsetting the workpieces 105, parts with a negative clamping bridge can also be picked up and clamped offset downwards. Normally, the parts are clamped in the clamping device at the top and bottom. The overlap of the two clamping surfaces is the so-called clamping bridge. The trend is moving toward profiles with very small, no, or even negative clamping bridges. Here, there is no overlap between the top and bottom. The workpiece 105 must then be clamped in the rebate.

[0120] The device according to the invention can be used advantageously as described below.

[0121] The workpiece 105 is picked up, for example, as a raw part by the feeding device 6, 106 from the pick-up position of the workpiece inlet on the feeding table 16, 116.

[0122] The workpiece 105 is then inserted into the clamping jaws 118, 119 of the workpiece holder by means of the feed device 6, 106 for the first clamping. The position of the workpiece 105 can be variably aligned in the y- and z-directions, depending on the intended machining operations to be performed on the workpiece 105, whereby the y- and z-alignment can be selected by moving the feed device 106 along the axes of the feed device 106.

[0123] The Figure 10 shows a feeding device 201 with an elongated base body 202, on which the clamping elements 203 with two clamping jaws 204, 205 projecting in the y-direction, at least one of which is displaceable in the z-direction 111, are arranged adjacent to and spaced from each other. The feeding device 201 is itself designed to be displaceable in the y-direction and in the z-direction. Figure 10It can be seen that the clamping elements 203 are fixedly arranged in a central region 206 of the feed device 201. At the end regions 207, 208, two clamping elements 203 are designed to be movable, so that the distance between the clamping elements in the x-direction 210 is adjustable. For this purpose, the clamping elements 203 can be guided and locked on the base body 202 on a type of rail or in grooves or the like. The displacement can be carried out by means of a drive unit, such as a pneumatic, hydraulic, or electric actuator.

[0124] The Figure 11 shows a workpiece 301 clamped by a clamping element 302 of a workpiece table 303 in section. The workpiece 301 is held by upper and lower clamping jaws 304, 305. A glass strip 306 is formed on the workpiece 301, which can be gripped and removed by means of the clamping elements 307, 308 of a feed device 309.

[0125] The processing described is in particular a machining operation such as milling, sawing and / or drilling. List of reference symbols

[0126] 1 Machining fixture 2 Workpiece table 3 Workpiece holder 4 Clamping element 5 Workpiece 6 Feeding device 7 Fixture frame 8 Guide device 9 Support element 10 Clamping element 11 z-direction 12 y-direction 13 x-direction 14 Tool slide 15 Tool 16 Feed and / or discharge table 17 Base body 18 Clamping jaws 19 Clamping jaws 20 Clamping jaws 21 Clamping jaws 22 Loading area 23 Arrow 24 Machining area 101 Machining fixture 102 Workpiece table 103 Workpiece holder 104 Clamping element 105 Workpiece 106 Feeding device 107 Fixture frame 108 Guide device 109 Support element 110 Clamping element 111 z-direction 112 y-direction 113x-direction 114Tool slide 115Tool 116Feed and / or discharge table 117Main body 118Clamping jaws 119Clamping jaws 120Clamping jaws 121Clamping jaws 201Feed device 202Main body 203Clamping element 204Clamping jaws 205Clamping jaws 206Middle area 207End area 208End area 210x-direction 301Workpiece 302Clamping element 303Workpiece table 304Clamping jaws 305Clamping jaws306Glass bead 307Clamping element 308Clamping element 309Feeding device

Claims

1. A machining device (1), in particular for machining workpieces (5) made of wood, wood materials, plastic, with at least one workpiece table (2) with a workpiece holder (3) for holding at least one workpiece (5), and with a supply device (6) for supplying at least one workpiece (5) to the at least one workpiece table (2), wherein the at least one workpiece (5) is positionable in three dimensions with respect to the at least one workpiece table (2), wherein one workpiece table (2) or two or more workpiece tables (2) is or are provided, and wherein the supply device (6) is shiftable at least in one direction relative to the at least one workpiece table (2), wherein the supply device (6) is shiftable in two directions (y direction, 12, z direction, 11) relative to the at least one workpiece table (2) or to the workpiece tables (2), wherein the supply device (6) is shiftable in both directions by means of two advancing units, wherein the respective workpiece table (2) has a workpiece holder (3) with a number of clamping elements (4) which are arranged spaced apart from one another in the longitudinal direction of the respective workpiece table (2) and a clamping element (4) has two pairs of clamping jaws (18, 19) each with two clamping jaws, wherein in each case at least one of the clamping jaws (19) of a pair is shiftable relative to the other clamping jaw (18) of the pair, and wherein the clamping jaws (18, 19) of a first pair protrude in a first direction perpendicular to the longitudinal direction (13), wherein the clamping jaws of a second pair protrude in a direction opposed to the first direction perpendicular to the longitudinal direction (13), characterised in that the at least one workpiece table (2) or at least one of the workpiece tables (2) or each of the workpiece tables (2) is shiftable at least in its longitudinal direction (x direction, 13) relative to the supply device (6), and wherein the respective workpiece table (2) is shiftable in its longitudinal direction by means of an advancing unit.

2. The machining device (1) as claimed in claim 1, characterised in that at least one workpiece (5) is suppliable by means of the supply device (6) to at least one of the workpiece tables (2) in such a manner that one workpiece (5) or a plurality of workpieces (5) is holdable simultaneously by one of the workpiece tables (2) and / or more than one workpiece (5) is suppliable simultaneously by means of the supply device (6) to at least one of the workpiece tables (2) in such a manner that a plurality of workpieces (5) are holdable simultaneously by one of the workpiece tables (2).

3. The machining device (1) as claimed in one of the preceding claims 1 or 2, characterised in that the supply device (6) has a number of clamping elements (4) which are arranged spaced apart from one another in the longitudinal direction of the supply device (6) and / or a clamping element (4) has at least one pair of clamping jaws with two clamping jaws, wherein at least one of the clamping jaws is shiftable relative to the other clamping jaw and / or a clamping element (4) has two pairs of clamping jaws each with two clamping jaws, wherein in each case at least one of the clamping jaws of a pair is shiftable relative to the other clamping jaw of the pair and / or the clamping jaws of a pair each protrude in a direction perpendicular to the longitudinal direction (13) and / or the clamping jaws of a first pair protrude in a first direction perpendicular to the longitudinal direction, wherein the clamping jaws of a second pair protrude in a direction opposed to the first direction perpendicular to the longitudinal direction.

4. The machining device (1) as claimed in one of the preceding claims, characterised in that the supply device, at least in a central region, as viewed in the longitudinal direction, has clamping jaw pairs which are arranged spaced apart from one another and fixed with respect to one another in the longitudinal direction and / or the supply device, at least on one of its end regions, as viewed in the longitudinal direction, has at least one clamping jaw pair which is arranged so as to be shiftable in the longitudinal direction and / or the supply device, at least on one of its end regions, as viewed in the longitudinal direction, has at least two clamping jaw pairs which are arranged so as to be shiftable in the longitudinal direction and / or the shiftable clamping jaw pair or the shiftable clamping jaw pairs of the supply device is or are adjustable and fixable in their position in the longitudinal direction and / or the shiftable clamping jaw pair or the shiftable clamping jaw pairs is or are shiftable by means of a drive unit and / or one of the clamping jaws is rotatable relative to the other clamping jaw, in particular by 90°.

5. A method for operating a machining device (1) as claimed in one of the preceding claims, for machining workpieces (5) made of wood, wood materials, plastic, with a workpiece table (2) with a workpiece holder (3) for holding at least one workpiece (5), and with a supply device (6) for supplying at least one workpiece (5) to the workpiece table (2), characterised in that the workpiece (5) is guided to the workpiece table (2) and is positioned thereon by means of the supply device (6), wherein the workpiece (5) is positioned in three dimensions with respect to the workpiece table (2) and the workpiece table (2) is shifted in its longitudinal direction (x direction, 13) relative to the supply device (6), and the supply device (6) is shifted in two directions (y direction, 12, z direction, 11) relative to the workpiece table (2) in order to position a workpiece (5) with respect to the supply table (16).

6. The method as claimed in claim 5, characterised in that one workpiece (5) is clamped in the workpiece holder (3) of the workpiece table (2).

7. The method as claimed in one of claims 5 or 6, characterised in that the workpiece holder (3) has pairs of clamping jaws (18, 19) by means of which a workpiece (5) can be clamped in the workpiece holder (3) of the workpiece table (2) and / or the workpiece holder (3) has at least two sets of pairs of clamping jaws (18, 19) by means of which a workpiece (5) can be clamped in the workpiece holder (3) of the workpiece table (2), wherein the workpiece (5) is transferable from a first set of pairs to a second set of pairs.

8. The method as claimed in one of the preceding claims 5 to 7, characterised in that the workpiece (5), following clamping in the workpiece holder (3), is machined on a longitudinal side by means of at least one tool (15) and / or the workpiece (5), following clamping in the workpiece holder (3), is machined with end finishing machining on a narrow side by means of at least one tool (15) and / or the workpiece (5), following clamping in the workpiece holder (3), is machined with end finishing machining on both narrow sides by means of at least one tool (15).

9. The method as claimed in one of the preceding claims 5 to 8, characterised in that, following machining of the workpiece by clamping same in a set of clamping jaws (18, 19), the workpiece (5) is rechucked into the second set of clamping jaws (18, 19), for the further machining of the workpiece (5), in particular on a second longitudinal side and / or on at least one of the narrow sides.

10. The method as claimed in one of the preceding claims 5 to 9, characterised in that, following the machining, the workpiece (5) is removed from the workpiece table (2) by the supply device (6).

11. The method as claimed in one of the preceding claims 5 to 10, characterised in that a glass strip or another element is removed from a workpiece (5) by means of the supply device (6) with at least individual pairs of its clamping jaw pairs.

12. The method as claimed in one of the preceding claims 5 to 11, characterised in that a fitting, an RFID chip or another element is supplied to a workpiece (5) by means of the supply device (6) with at least individual pairs of its clamping jaw pairs.