Device for receiving a workpiece, laser- or plasma-cutting device, and method for installing and / or uninstalling such a device

Abstract

The invention relates to a device (10) for receiving at least one workpiece for a laser- or plasma-cutting device with the features of claim (1), to a laser- or plasma-cutting device comprising such a device (10) with the features of claim (17), and to a method for installing and / or uninstalling such a device (10) with the features of claim (18).

Description

[0001] Title : Device for holding a workpiece , a

[0002] Laser or plasma cutting device and a method for assembling and / or disassembling such a device

[0003] Description

[0004] The invention relates to a device for receiving at least one workpiece for a laser or plasma cutting device with features of claim 1, a laser or plasma cutting device with such a device with features of claim 17 and a method for assembling and / or disassembling such a device with features of claim 18.

[0005] To cut a workpiece using a laser, the workpiece is typically placed on a support device. The support device typically consists of a plurality of support bars arranged side by side. The support bars typically have prongs on which the workpiece is positioned or placed.

[0006] Such a support device is disclosed in DE 10 2011 106 469 A1.

[0007] During the cutting process of the workpiece, slag residues build up on the support fixture. This fixture must therefore be regularly disassembled, cleaned, and / or replaced. Disassembling, cleaning, and reassembling such a support fixture is highly complex and therefore time-consuming and costly.

[0008] It is therefore an object of the present invention to provide a device for receiving at least one workpiece for a laser or plasma cutting device, a laser or plasma cutting device with such a device and a method for assembling and / or disassembling such a device, wherein the above disadvantages are eliminated.

[0009] The above object is achieved by a device for receiving at least one workpiece for a laser or plasma cutting device having the features of claim 1.

[0010] The device comprises at least two support bars for placing the workpiece. In other words, the workpiece is placed or positioned on the support bars. The support bars are each plate-shaped and elongated (i.e. in the form of a bar). The support bars each have a first end and a second end opposite the first end. The support bars can be arranged parallel to one another. The support bars are each oriented along a longitudinal direction and arranged next to one another. The support bars each have at least one through-hole, in particular at least two through-holes. The through-hole in particular has a closed circumference. The through-hole can be arranged at a distance from an edge of the respective support bar. The support bars can each have prongs on which the workpiece can be positioned or placed.

[0011] The device comprises at least one connecting strip for connecting the support strips to one another. The connecting strip is plate-shaped and elongated (i.e. in the form of a strip). The connecting strip has a first end and a second end opposite the first end. The support strips and / or the connecting strip are designed such that the connecting strip can be passed through the through-holes in a first orientation along a transverse direction and can be connected to the support strips in a second orientation.

[0012] In the second orientation, the connecting strip can be locked in place, particularly in the through holes or by means of the through holes between the support strips. In the second orientation, the connecting strip can be fixed, particularly in a form-fitting manner, between the support strips in at least one spatial direction (e.g., in the transverse direction), preferably in all spatial directions. The connecting strip can be designed to be connectable to the support strips by means of a bayonet lock or a mechanism similar to a bayonet lock.

[0013] This means the device can be implemented using simple means. The device or individual components of the device can be quickly assembled and / or disassembled or replaced. No riveting, welding or screwing of the support bars is necessary. The device or individual components of the device can be exchanged or replaced quickly, easily and cost-effectively. Individual elements (e.g. support bars and / or the connecting bar) or the entire device can be replaced individually. Time-consuming and costly dismantling and cleaning of the device can be eliminated. The downtime of the laser or plasma cutting device can therefore be reduced.

[0014] The device is particularly suitable for laser or plasma cutting devices with a power output of 24 kW (kilowatts) or greater. At such high power levels, the device or its components are gradually destroyed (wear and tear). A quick and cost-effective replacement of the device (either as a whole or just its components) is particularly valuable in this case.

[0015] The device is inherently rigid, particularly due to the interconnection of the support bars by means of the connecting bar. The support bars can therefore have a significantly larger cross-section (e.g., 50% higher than state-of-the-art support bars). This allows for increased resistance, higher load-bearing capacity, and a correspondingly longer service life of the device.

[0016] Since the support strips and / or the connecting strip are plate-shaped (i.e. without edges), these elements can be easily and inexpensively manufactured or recut if necessary (e.g. using a laser or plasma cutting device).

[0017] According to a further development of the device, the connecting bar and / or the support bars can be designed such that the connecting bar can be transferred from the first orientation to the second orientation by rotating it about a rotation axis (e.g., clockwise). Alternatively or additionally, the connecting bar and / or the support bars can be designed such that the connecting bar can be transferred from the second orientation to the first orientation by rotating it about a rotation axis (e.g., counterclockwise). The rotation axis can be aligned along the transverse direction.

[0018] This allows the connecting strip to be connected (locked) to the support strips or released from them again using simple means. The locking or releasing of the connecting strip or support strips can be implemented as a bayonet connection or similar to a bayonet connection.

[0019] According to a development of the device, the connecting strip can have at least two receiving areas for respectively receiving the support strips. The receiving areas can be arranged, in particular equidistant, between the first end and the second end of the connecting strip. Each receiving area can have at least one slot-like recess, in particular two slot-like recesses. In the second orientation of the connecting strip, the support strips can protrude into or engage in the recesses. In other words, in the second orientation of the connecting strip, a support strip can be received in each recess. The slot-like recesses can be oriented at an angle of 2° relative to a cross-sectional height of the connecting strip. The recesses can therefore be tilted by 2° from the vertical.

[0020] This allows a simple, particularly positive, connection between the connecting strip and the support strips to be created. By tilting the recesses (from the vertical), the support strips can be clamped to the connecting strip in the second orientation of the connecting strip, creating a frictional connection in addition to the positive connection. This prevents or at least minimizes vibrations in the support strips.

[0021] According to a further development of the device, the connecting strip between two adjacent receiving areas can have, at least in some areas, a curved contour, particularly an inward one. It is also conceivable for the curved contour to be curved outward.

[0022] This can increase the stability of the connecting bar and thus of the entire device. According to a further development of the device, the connecting bar can have at least one connection hole at its first end and / or at its second end for connecting to another connecting bar.

[0023] This allows two connecting strips to be connected to each other using simple means, particularly along the transverse direction.

[0024] According to a further development of the device, the through holes of the support strips can be cross-shaped. The through holes can be arranged at half the cross-sectional height of the support strips.

[0025] In this way, a connection (in particular in the manner of a banquet lock) between the connecting strip and the support strips can be implemented using simple means, in particular along the transverse direction.

[0026] According to a further development of the device, the support strips can each have an inclined region at their first end. Alternatively or additionally, the support strips can each have an inclined region at their second end. The inclined region can have an inclination with respect to the longitudinal direction.

[0027] This can lead to a risk of injury, especially from sharp

[0028] Corners of the support strips can be reduced. Furthermore, the angled areas can generate a self-centering effect, making it easier to insert the support strips into a pallet (see below).

[0029] According to a further development of the device, the support bars and / or the connecting bar can be made of steel.

[0030] This allows for the implementation of stable and inexpensive support strips or connecting strips that can be replaced quickly and cheaply. The use of higher-quality and expensive metals such as copper, which are more resistant to laser radiation (and thus to the cutting process), is unnecessary.

[0031] According to a further development of the device, the device can comprise at least one end strip, in particular at least two end strips. The end strip can be plate-shaped. Alternatively or additionally, the end strip can be elongated. The end strip can have at least two slot-like first receptacles for receiving the first end and / or the second end of the support strips. The slot-like first receptacles can be arranged equidistantly along the end strip.

[0032] This allows the first and / or second ends of the support strips to be connected to each other using simple means. This further increases the stability of the device.

[0033] According to a development of the device, the end strip can have a first region and a second region. The slot-like first receptacles can be arranged within the first region. The first region and the second region can each be flat and oriented at an incline to one another. In other words, the end strip can have an edge which is formed by the two regions of the end strip which are inclined towards one another. The second region can have an incline corresponding to the inclined region of the support strips. In other words, the incline of the second region can correspond to the incline of the inclined regions of the support strips.

[0034] This can reduce the risk of injury, especially at sharp corners of the support strips, as these are covered by the end strip. Furthermore, the second section of the end strip can generate a self-centering effect, making it easier to insert the support strips and end strip into a pallet (see below).

[0035] According to a further development of the device, the device can comprise at least one cover strip. The cover strip can be plate-like and elongated. The cover strip can have at least two slot-like second receptacles for receiving the first end and / or the second end of the support strips. The slot-like second receptacles can be arranged equidistantly along the cover strip. The cover strip can be designed such that it can be connected to the end strip by means of at least one screw connection. In other words, the cover strip and the end strip can be screwed together.

[0036] This allows the first and / or second ends of the support strips to be connected to each other using simple means. In particular, the cover strip can prevent the support strips (or the respective ends of the support strips) from slipping out of the end strip. Furthermore, the stability of the device can be further increased.

[0037] According to a further development of the device, the support strips can each have an extension at their first end and / or their second end. The device can be configured such that the extensions each protrude into or engage the slot-like first receptacles of the end strip. Alternatively or additionally, the device can be configured such that the extensions each protrude into or engage the slot-like second receptacles of the cover strip.

[0038] This simplifies the positioning of the support strips (or their respective ends) in the respective receptacles of the end strip or the cover strip.

[0039] According to a further development of the device, the device has at least one connecting device for connecting two connecting strips.

[0040] This makes it easy to create a connection between two connecting strips and thus between several cassettes (see below).

[0041] According to a further development of the device, the connecting device comprises at least one locking element and at least one fixing element. The locking element is configured to connect two connecting holes of two connecting strips. The fixing element is configured to fix, lock, and / or brace the locking element in a position connecting the connecting holes of two connecting strips.

[0042] This allows the connection device to be implemented using simple means.

[0043] According to a further development of the device, the locking element can be n (Pi)- or U-shaped. The fixing element can be U- or E-shaped.

[0044] This allows a stable connection device to be implemented using simple means.

[0045] According to a further development of the device, the device can comprise at least one frame for receiving at least one cassette. The cassette can be formed by at least two support strips that are connected to one another by means of the at least one connecting strip. A cassette can be formed by at least two support strips that are connected to one another by means of the at least one connecting strip, at least one end strip and / or at least one cover strip.

[0046] The support strips, the connecting strip, the end strip, the cover strip, the locking element and / or the fixing element can each be mirror-symmetrical (i.e. no difference between left or right). The support strips, the connecting strip, the end strip, the cover strip, the locking element and / or the fixing element can each be identical parts. The support strips can have a length of approx. 1.5 m (meters). The connecting strip, the end strip and / or the cover strip can each have a length of approx. 1 m.

[0047] This allows at least one cassette to be created, easily mounted within the frame, and moved within the frame. The cassettes can be mounted modularly within the frame and / or exchanged or replaced individually within the frame.

[0048] The above object is further achieved by a laser or plasma cutting device having the features of claim 17. The laser or plasma cutting device comprises at least one device according to the above embodiments.

[0049] With regard to the advantages that can be achieved, reference is made to the relevant information on the device. Further refinements of the laser or plasma cutting device may be made using the measures described in connection with the device and / or those explained below.

[0050] The above object is further achieved by a method for assembling and / or disassembling a device according to the above embodiments with the features of claim 18.

[0051] The procedure includes the following steps:

[0052] Providing the device .

[0053] Passing the connecting bar through the through holes of the support bars in the first orientation. Transferring the connecting bar to the second orientation by rotating the connecting bar relative to the support bars in order to connect the connecting bar to the support bars. The rotation of the connecting bar can occur in particular about a rotation axis oriented along the transverse direction. Transferring the connecting bar from the first orientation to the second orientation can represent an assembly step.

[0054] According to a further development of the method, the method may comprise the step:

[0055] Transferring the connecting bar from the second orientation to the first orientation by rotating the connecting bar relative to the support bars in order to detach the connecting bar from the support bars. The rotation of the connecting bar can occur, in particular, about a rotation axis oriented along the transverse direction. Transferring the connecting bar to the first orientation can represent a disassembly step.

[0056] The connection bar can be rotated in opposite directions during the assembly and disassembly steps. In particular, the connection bar can be converted from the first orientation to the second orientation and vice versa by rotating it 90°.

[0057] With regard to the advantages achievable with the method, reference is made to the relevant explanations of the device. The measures described in connection with the device and / or those explained below may serve to further refine the method.

[0058] Further features, details and advantages of the invention will become apparent from the wording of the claims and from the following description of an embodiment with reference to the drawings. They show:

[0059] Fig. 1 is a perspective view of a device for holding at least one workpiece for a laser or plasma cutting device;

[0060] Fig. 2 is a plan view of the device according to Figure 1;

[0061] Fig. 3 is a perspective view of a cassette of the device according to Figure 1;

[0062] Fig. 4 is a side view of a connecting bar of the device according to Figure 1;

[0063] Fig. 5 is a side view of the cassette according to Figure 3 with connecting strips in a first orientation;

[0064] Fig. 6 is a side view of the cassette according to Figure 3 with connecting strips in a second orientation;

[0065] Fig. 7 is a perspective view of an end strip of the cassette according to Fig. 3;

[0066] Fig. 8 is a side view of the end strip according to Fig. 7; Fig. 9 is a perspective view of a cover strip of the cassette according to Fig. 3;

[0067] Fig. 10 is a side view of the cover strip from Fig. 9;

[0068] Fig. 11 is a perspective view of a connecting device of the device according to Figure 1;

[0069] Fig. 12 is a perspective view of a locking element of the connecting device according to Fig. 11;

[0070] Fig. 13 is a side view of the locking element according to Fig. 12;

[0071] Fig. 14 is a perspective view of a fixing element of the connecting device according to Figure 11 and

[0072] Fig. 15 is a side view of the fixing element according to Fig. 14.

[0073] In the following description and in the figures, corresponding components and elements bear the same reference symbols. For the sake of clarity, not all reference symbols are shown in all figures.

[0074] Figure 1 shows a perspective view and Figure 2 a plan view of a device 10 for receiving at least one

[0075] Workpiece for a laser or plasma cutting device. The device 10 comprises at least two support bars 12 for supporting the workpiece and at least one connecting bar 22 for connecting the support bars 12 to one another.

[0076] In the present case, the device 10 comprises a frame 66 for receiving at least one cassette 68. The frame 66 can have a size of 1.5 m x 3 m. In the present case, the frame 66 is designed to receive three cassettes 68. The cassettes 68 can be screwed to the frame 66. It is also conceivable for the cassettes 68 to merely rest on the frame 66 and / or to be braced against the frame 66.

[0077] A cassette 68 can be formed from at least two support strips 12, which are connected to one another by means of at least one connecting strip 22. In the present case, the two outer cassettes 68 in Figures 1 and 2 (left and right cassette 68) are each formed from fifteen support strips 12, which are each connected to one another by means of two connecting strips 22. The middle cassette 68 in Figures 1 and 2 is formed from six ten support strips 12, which are connected to one another by means of two connecting strips 22.

[0078] Figure 3 shows a perspective view of a cassette 68 of the device 10 according to Figure 1. The cassette 68 shown in Figure 3 has fifteen support strips 12 which are connected to one another by means of two connecting strips 22. It can therefore be the left or right cassette 68 in Figures 1 and 2. The cassette 68 in the present case has two end strips 46 and two cover strips 54 (cf. further below). The support strips 12 can each be plate-shaped and elongated. The support strips 12 each have a first end 14 and a second end 16 opposite the first end 14. The support strips 12 are each oriented along a longitudinal direction 18 and arranged next to one another. The support strips 12 each have at least one through-hole 20. In the present case, each support strip 12 has two through holes 20 (cf. Figures 4 and 6).

[0079] Figure 4 shows a side view of a connecting bar 22 of the device 10 according to Figure 1. The connecting bar 22 is plate-shaped and elongated. The connecting bar 22 has a first end 24 and a second end 26 opposite the first end 24.

[0080] The support strips 12 and / or the connecting strip 22 are designed such that the connecting strip 22 can be passed through the through holes 20 in a first orientation 28 along a transverse direction 30. In a second orientation 32, the connecting strip 22 can be connected to the support strips 12.

[0081] For this purpose, the connecting strip 22 can have at least two receiving areas 36 for respectively receiving the support strips 12. In the present case, the connecting strip 22 has fifteen receiving areas 36 which are arranged equidistantly between the first end 24 and the second end 26 of the connecting strip 22. In other words, the distances between two adjacent receiving areas 36 are in this case the same. The number of receiving areas 36 corresponds to the number of support strips 12 within a cassette 68 (cf. Figure 3). Each receiving area 36 can have at least one slot-like recess 38. In the present case, each receiving area 36 has two slot-like recesses 38, which are each arranged on opposite sides of the connecting strip 22. In the second orientation 32 of the connecting strip 22, the support strips 12 can engage or protrude into the recesses 38.In the second orientation 32 of the connecting strip 22, a positive connection between the connecting strip 22 and the support strips 12 can be implemented along the transverse direction 30.

[0082] The recesses 38 can be oriented at an incline relative to a cross-sectional height 39 of the connecting strip 22. The inclination can be 2°. This allows for bracing of the support strips 12 to the connecting strip 22.

[0083] Between each two adjacent receiving areas 36, a contour 40, in particular one curved inwardly, can be arranged at least in some areas. In the present case, the entire area between two adjacent receiving areas 36 is formed from an inwardly curved contour 40. It is also conceivable that the contour 40 can be curved outwardly.

[0084] The connecting strip 22 has at least one connection hole 42 at its first end 24 and / or its second end 26 for connecting to another connecting strip 22. In the present case, the connecting strip 22 has three connection holes 42 at its first end 24 and its second end 26. Figure 5 shows a side view of the cassette 68 according to Figure 3 with the connecting strips 22 in the first orientation 28 and Figure 6 in the second orientation 32.

[0085] The connecting strips 22 and / or the support strips 12 can be designed such that the respective connecting strip 22 can be transferred from the first orientation 28 to the second orientation 32 and vice versa by rotating about a respective rotation axis 34. The respective rotation axis 34 can be oriented along the transverse direction 30, i.e., perpendicular to the longitudinal direction 18 (cf. Figure 3). In Figures 5 and 6, the transverse direction 30 projects into the plane of the drawing (indicated by a cross).

[0086] The connecting strips 22 can be pushed through the respective through holes 20 of the support strips 12 in the first orientation 28. As soon as the connecting strips 22 are in the correct position in which the support strips 12 are arranged on the receiving areas 36 of the connecting strips 22, the connecting strips 22 can be transferred from the first orientation 28 to the second orientation 32 by a rotation (e.g. by 90°) (and vice versa).

[0087] In the present case, in the first orientation 28, the cross-sectional height 39 of the connecting strips 22 is oriented along the longitudinal direction 18. The connecting strips 22 are aligned quasi horizontally (cf. Figure 5). In the second orientation 32, the connecting strips 22 are erected from the horizontal (by, for example, 90°). The connecting strips 22 are then aligned quasi vertically (cf. Figure 6). The connecting strip 22 arranged on the left in Figures 5 and 6 is transferred in the present case from the first orientation 28 to the second orientation 32 by a rotation of 90° counterclockwise. Correspondingly, the connecting strip 22 arranged on the left in Figures 5 and 6 is transferred from the second orientation 32 to the first orientation 28 by a rotation of 90° clockwise.

[0088] The connecting strip 22 arranged on the right in Figures 5 and 6 is transferred from the first orientation 28 to the second orientation 32 by a 90° clockwise rotation. Similarly, the connecting strip 22 arranged on the right in Figures 5 and 6 is transferred from the second orientation 32 to the first orientation 28 by a 90° counterclockwise rotation.

[0089] The through holes 20 can be cross-shaped. The cross-shaped shape of the through holes 20 allows the degree of rotation of the connecting bar 22 to be determined.

[0090] The support strips 12 can each have an inclined region 44 at their first end 14 and / or at their second end 16. In the present case, each support strip 12 has an inclined region 44 at its first end 14 and its second end 16.

[0091] The support bars 12 and / or the connecting bar 22 can be made of steel. The device 10 can include at least one end bar 46.

[0092] In the present case, each cassette 68 of the device 10 has two

[0093] End strips 46 (see Figure 3). The end strips 46 can also be made of steel.

[0094] Figure 7 shows a perspective view and Figure 8 a side view of an end strip 46 of the cassette 68 according to Figure 3. The end strip 46 can have at least two slot-like first receptacles 48 for receiving the first end 14 and / or the second end 16 of the support strips 12. In the present case, the end strip 46 has thirty-one first receptacles 48. Thus, the fifteen support strips 12 can be received in every second first receptacle 48 of the end strip 46.

[0095] The end strip 46 can have a first region 50 and a second region 52. The two regions 50, 52 can be arranged in a canted manner (i.e., inclined relative to one another). The slot-like first receptacles 48 can be arranged within the first region 50. The first region 50 and the second region 52 can each be flat and oriented at an angle relative to one another.

[0096] In the present case, the first region 50 is oriented perpendicular to the longitudinal direction 18 (cf. Figure 4 or 5). The second region 52 is arranged at an incline relative to the first region 50. The incline of the second region 52 corresponds in this case to the incline of the inclined regions 44 of the support strips 12. The incline of the second region 52 and the incline of the inclined regions 44 of the support strips 12 can in particular be identical. The device 10 can comprise at least one cover strip 54. In the present case, each cassette 68 has two cover strips 54 (cf. Figure 3).

[0097] Figure 9 shows a perspective view and Figure 10 a side view of a cover strip 54 of the cassette 68 according to Figure 3. The cover strip 54 can have at least two slot-like second receptacles 56 for receiving the first end 14 and / or the second end 16 of the support strips 12. In the present case, the cover strip 54 has thirty-one slot-like second receptacles 56. The number of first receptacles 48 of the end strip 46 and the number of second receptacles 56 of the cover strip 54 can be identical.

[0098] The support strips 12 can each have an extension 58 at their first end 14 and / or their second end 16. In the present case, each support strip 12 has an extension 58 at its first end 14 and its second end 16 (cf. Figures 5 and 6). The device 10 is configured in such a way that the extensions 58 each protrude into the slot-like first receptacles 48 of the end strips 46 and / or into the slot-like second receptacles 56 of the cover strips 54.

[0099] Mounting a cassette 68 can be done as follows:

[0100] In a first step, the support strips 12 can be captured with their first ends 14 and their second ends 16, i.e., on both sides, in the two end strips 46, i.e., the extensions 58 can be positioned in the first receptacles 48. Subsequently, the support strips 12 can be secured, in particular, against tilting by means of the cover strips 54. The cover strips 54 can be screwed to the end strips 46 by means of screws.

[0101] The locking strips 22 can then be pushed through the through holes 20 in the first orientation 28 and, once the correct position has been reached, rotated, for example, by 90° about the respective rotation axis 34. The extension strips 22 are now arranged in the second orientation 32 and locked between the support strips 12.

[0102] The device 10 may comprise at least one connecting device 60 for connecting two connecting strips 22 (and thus two cassettes 68) to one another. In the present case, the device 10 comprises four connecting devices 60 (see Figure 1 or 2).

[0103] Figure 11 shows a perspective view of a connecting device 60 of the device 10 according to Figure 1. The connecting device 60 comprises at least one locking element 62 and one fixing element 64. In the present case, the connecting device 60 comprises three locking elements 62.

[0104] Figure 12 shows a perspective view and Figure 13 a side view of a locking element 62 of the connecting device 60 according to Figure 11.

[0105] The locking element 62 can be n- or U-shaped.

[0106] In the present case, the locking element 62 is n-shaped. The locking element 62 comprises two feet 70. The first

[0107] Foot 70 is inserted into a connecting hole 42 of a first connecting strip 22 and the second foot 70 is inserted into a connecting hole 42 of a second connecting strip 22 in order to connect the first and the second connecting strips 22 to one another (cf. Figure 11).

[0108] In the position connecting the connecting holes 42 of two connecting strips 22 (cf. Figure 11), the three locking elements 62 in the present case can be locked or fixed by means of the fixing element 64.

[0109] Figure 14 shows a perspective view and Figure 15 a side view of the fixing element 64 of the connecting device 60 according to Figure 11.

[0110] The fixing element 64 can be U-shaped or E-shaped. In the present case, the fixing element 64 is E-shaped. The fixing element 64 has two slots 72 that serve to receive the feet 70 of the control elements 62 (see Figure 11).

[0111] In the present case, all support strips 12, all connecting strips 22, all end strips 46, all cover strips 54, all locking elements 62 and all fixing elements 64 are each designed identically.

[0112] In the following, a method for assembling and / or disassembling the device 10 according to the above statements, in particular a cassette 68 of the device 10, is described: The method comprises the steps:

[0113] Providing the device 10 .

[0114] Passing at least one connecting strip 22 through the through holes 20 of the support strips 12 in the first orientation 28.

[0115] Assembly is performed by transferring the connecting bar 22 into the second orientation 32 by rotating the connecting bar 22 relative to the support bars 12 in order to connect the connecting bar 22 to the support bars 12. The rotation of the connecting bar 22 can be performed about the rotation axis 34.

[0116] The method may comprise the step of:

[0117] Disassembly can be performed by transferring the connecting bar 22 from the second orientation 32 to the first orientation 28 by rotating the connecting bar 22 relative to the support bars 12 in order to detach the connecting bar 22 from the support bars 12. The rotation of the connecting bar 22 can be performed about the rotation axis 34.

[0118] The connecting bar 22 can be rotated in opposite directions for assembly and disassembly.

[0119] The method may include the steps described above for mounting a cassette 68:

Claims

Patent claims 1. Device (10) for receiving at least one workpiece for a laser or plasma cutting device, comprising: at least two support strips (12) for placing the workpiece, wherein the support strips (12) are each plate-shaped and elongated, wherein the support strips (12) each have a first end (14) and a second end (16) opposite the first end (14), wherein the support strips (12) are each oriented along a longitudinal direction (18) and arranged next to one another, wherein the support strips (12) each have at least one through-hole (20), at least one connecting strip (22) for connecting the support strips (12) to one another, wherein the connecting strip (22) is plate-shaped and elongated, wherein the connecting strip (22) has a first end (24) and a second end (26) opposite the first end (24), wherein the support strips (12) and / or the connecting strip (22) are designed in such a way are,that the connecting strip (22) can be passed through the through holes (20) in a first orientation (28) along a transverse direction (30) and can be connected to the support strips (12) in a second orientation (32).

2. Device (10) according to claim 1, characterized in that the connecting strip (22) and / or the support strips (12) are designed such that the connecting strip (22) can be transferred from the first orientation (28) into the second orientation (32) and / or from the second orientation (32) into the first orientation (28) by rotating about a rotation axis (34), wherein the rotation axis (34) is aligned along the transverse direction (30).

3. Device (10) according to claim 1 or 2, characterized in that the connecting strip (22) has at least two receiving areas (36) for respectively receiving the support strips (12), wherein each receiving area (36) has at least one slot-like recess (38), wherein the support strips (12) protrude into the recesses (38) in the second orientation (32) of the connecting strip (22), in particular wherein the slot-like recesses (38) are oriented inclined by 2° with respect to a cross-sectional height (39) of the connecting strip (22).

4. Device (10) according to the preceding claim, characterized in that the connecting strip (22) between two adjacent receiving areas (36) has at least in some areas a contour (40) which is curved, in particular inwards.

5. Device (10) according to one of the preceding claims, characterized in that the connecting strip (22) has at least one connecting hole (42) at its first end (24) and / or its second end (26) for connecting to a further connecting strip (22).

6. Device (10) according to one of the preceding claims, characterized in that the through holes (20) are cross-shaped.

7. Device (10) according to one of the preceding claims, characterized in that the support strips (12) each have an obliquely extending region (44) at their first end (14) and / or their second end (16).

8. Device (10) according to one of the preceding claims, characterized in that the support strips (12) and / or the connecting bar (22) are made of steel.

9. Device (10) according to one of the preceding claims, characterized in that the device (10) comprises at least one end strip (46), wherein the end strip (46) has at least two slot-like first receptacles (48) for receiving the first end (14) and / or the second end (16) of the support strips (12).

10. Device (10) according to the preceding claim, characterized in that the end strip (46) has a first region (50) and a second region (52), wherein the slot-like first receptacles (48) are arranged within the first region (50), wherein the first region (50) and the second region (52) are each flat and oriented at an inclination to one another, in particular wherein the second region (52) has an inclination corresponding to the obliquely running region (44) of the support strips (12).

11. Device (10) according to one of the preceding claims, characterized in that the device (10) comprises at least one cover strip (54), wherein the cover strip (54) has at least two slot-like second receptacles (56) for receiving the first end (14) and / or the second end (16) of the support strips (12).

12. Device (10) according to one of the two preceding claims, characterized in that the support strips (12) each have an extension (58) at their first end (14) and / or their second end (16), wherein the device (10) is designed such that the extensions (58) each protrude into the slot-like first receptacles (48) of the end strip (46) and / or into the slot-like second receptacles (56) of the cover strip (54).

13. Device (10) according to one of the preceding claims, characterized in that the device (10) has at least one connecting device (60) for connecting two connecting strips (22).

14. Device (10) according to the preceding claim and claim 5, characterized in that the connecting device (60) comprises at least one locking element (62) and at least one fixing element (64), wherein the locking element (62) is designed to connect two connecting holes (42) of two connecting strips (22) to one another, wherein the fixing element (64) is arranged to lock the locking element (62) in a connecting holes (42) of two Connecting strips (22) to fix the connecting position.

15. Device (10) according to the preceding claim, characterized in that the locking element (62) is N-shaped or U-shaped and / or the fixing element (64) is U-shaped or E-shaped.

16. Device (10) according to one of the preceding claims, characterized in that the device (10) comprises at least one frame (66) for receiving at least one cassette (68), wherein the cassette (68) is formed by at least two support strips (12) which are connected to one another by means of the at least one connecting strip (22).

17. Laser or plasma cutting device comprising at least device (10) according to one of the preceding claims.

18. A method for assembling and / or disassembling a device (10) according to one of the preceding claims, characterized by the steps: Providing the device (10); Passing the connecting strip (22) through the through holes (20) of the support strips (12) in the first orientation (28); Transferring the connecting strip (22) into the second orientation (32) by rotating the connecting strip (22), in particular about a rotation axis (34) oriented along the transverse direction (30), relative to the support strips (12), in order to connect the connecting strip (22) to the support strips (12) 19. Method according to claim 18, characterized by the step: Transferring the connecting bar (22) from the second orientation (32) into the first orientation (28) by rotating the connecting bar (22), in particular about a rotation axis (34) oriented along the transverse direction (30), relative to the support bars (12), in order to detach the connecting bar (22) from the support bars (12).

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