Machine arrangement for separating workpiece parts of a workpiece-parts assembly produced by a separating machining of a plate-like workpiece

Abstract

The invention relates to a machine arrangement (2) for separating workpiece parts (3a, 3b, 3c, 3d) of a workpiece-parts assembly (1) produced by a separating machining of a plate-like workpiece, comprising a separating unit (5), a parts tray, and a discharge unit (7) arranged between the separating unit (5) and the parts tray. By means of the separating unit (5), a workpiece part (3 a, 3 b, 3 c, 3 d) can be detached from the rest of the assembly (14) of the workpiece-parts assembly (1) by destroying a remaining connection between the workpiece part (3a, 3b, 3c, 3d) and the rest of the assembly (14). The opening cross-section of a discharge opening (9) of the discharge unit (7) is adapted to a planar extension of the workpiece part (3a, 3b, 3c,3d) detached from the rest of the assembly (14) in such a way that the detached workpiece part (3a, 3b, 3c,3d) lies within the opening cross-section of the discharge opening (9) in the perpendicular projection onto the discharge opening (9). The workpiece-parts assembly (1) and the discharge opening (9) of the discharge unit (7) can be positioned relative to one another in such a way that, after the workpiece part (3a, 3b, 3c, 3d) has been detached from the rest of the assembly (14), the detached workpiece part (3a, 3b, 3c, 3d) can pass through the discharge opening (9) to the parts tray, but not the rest of the assembly (14).

Description

[0001] Applicant:

[0002] TRUMPF Werkzeugmaschinen SE + Co. KG

[0003] Johann-Maus-Strasse 2

[0004] 71254 Ditzingen

[0005] Germany

[0006] Machine arrangement for singulating workpiece parts of a workpiece component assembly produced by separating workpiece machining of a plate-like workpiece.

[0007] The invention relates to a mechanical arrangement for singulating workpiece parts of a workpiece part assembly produced by a separating workpiece processing of a plate-like workpiece, in particular a sheet metal workpiece, in which a workpiece part has a residual connection with a composite remnant after the separating workpiece processing, which comprises at least one further workpiece part,

[0008] • with a separation unit by means of which the workpiece part can be separated from the composite residue by destroying the residual connection between the workpiece part and the composite residue, as well as

[0009] • with a parts tray for the workpiece part detached from the composite residue.

[0010] The prior art of this type is disclosed in DE 10 2021 123 520 A.

[0011] In the prior art, sheet metal parts are produced by separating a sheet of metal. Immediately after the separation process, these parts are connected to each other and to a residual grid also generated during the separating process by nanojoints. To separate the sheet metal parts from each other and from the residual grid, the assembly of residual grid and sheet metal parts is fixed to a separation device and then jerked back and forth by the device. The separation process ends as soon as all sheet metal parts have detached from the residual grid. The

[0012] TRUMPF Werkzeugmaschinen SE + Co. KG 2024P00234WO The sheet metal parts separated from the residual grid and separated in the process fall into a collection container under the influence of gravity.

[0013] The object of the invention is to enable an orderly removal and thereby a sorting of workpiece parts produced during the separating processing of a plate-like workpiece.

[0014] This problem is solved according to the invention by the mechanical arrangement according to claim 1.

[0015] In the case of the invention, an ejection unit with at least one ejection opening is provided between the separating unit and the parts tray of the machine arrangement. Due to the inventive adaptation of the opening cross-section of the ejection opening to a planar extent of a workpiece part to be ejected, and with a corresponding relative positioning of the ejection opening and the workpiece part assembly produced during the separating workpiece processing, it is ensured that after the workpiece part is separated from the remaining part of the workpiece assembly, the ejection opening can only be passed by the appropriately dimensioned workpiece part towards the parts tray. A residual connection, which can be formed, for example, by nanojoints, was left between the workpiece part to be ejected and the remaining part of the workpiece part assembly during the preceding separating workpiece processing.The remaining composite material after separating and removing at least one workpiece part can form the basis for a subsequent separation and removal process. Suitable workpiece parts for separation and removal include both good parts and waste parts from the separating workpiece machining process.

[0016] Special embodiments of the machine arrangement according to the invention as defined in claim 1 are set out in dependent claims 2 to 10.

[0017] According to claim 2, the discharge unit according to the invention has several discharge openings, the opening width of which is adapted to different-

[0018] TRUMPF Werkzeugmaschinen SE + Co. KG 2024P00234WOehe The sizes of the workpiece parts to be ejected are coordinated. The differently sized workpiece parts can be arranged simultaneously or successively at their respective ejection openings and, after separation, ejected from the remaining composite material.

[0019] In the case of the inventive design according to claim 3, at least one discharge opening of the discharge unit according to the invention is provided with a switchable locking device. In an open state, the locking device allows the workpiece part, separated from the remaining component of the previously existing workpiece assembly, to pass through the discharge opening, which is sized to match the workpiece part. If the locking device is in a closed state, the workpiece part, separated from the previously existing workpiece assembly, is prevented from passing through the discharge opening, which is sized to match the workpiece part. Due to these features of the invention, it is possible to temporarily store an already separated workpiece part at the associated discharge opening before discharge. This procedure makes it particularly possible to discharge several separated workpiece parts in a predetermined sequence.

[0020] In the case of the invention, a locking device with a locking element that can be selectively moved into an open position and a closed position is preferred as the locking device (claim 4). For example, a locking flap that can be pivoted in a controlled manner into an open position and a closed position is conceivable as the locking element.

[0021] Claim 5 relates to an inventive design in which the opening cross-section of at least one discharge opening is variably adjustable. The variability of the opening cross-section allows workpiece parts of different dimensions from a machining process to be discharged through one and the same discharge opening. In addition, the variability of the opening cross-section of at least one discharge opening offers the possibility of flexibly configuring the discharge unit according to the invention for separate workpiece machining operations.

[0022] TRUMPF Werkzeugmaschinen SE + Co. KG 2024P00234WO Claims 6 and 7 relate to preferred possibilities according to the invention for the constructive realization of an ejection unit with at least one ejection opening with a variable opening cross-section.

[0023] According to claim 8, the ejection unit of the machine arrangement according to the invention, in a further embodiment of the invention, comprises a composite support, in particular a plate-like one, on which a composite of workpiece parts is arranged for separating at least one workpiece part. In a further embodiment of the invention, at least one ejection opening provided on the composite support can be equipped with a closing device according to claim 3, in particular with a closing element according to claim 4.

[0024] In a further preferred embodiment of the invention, the opening cross-section of at least one discharge opening of the discharge unit is variably adjustable by means of support segments of the composite support forming parts of a multi-part opening boundary of the discharge opening and being variably adjustable relative to each other (claim 9).

[0025] In the case of the invention, a separating unit is in particular a separating unit with a vibration generator which generates a separating vibration to detach a workpiece part from the composite remainder, in which the workpiece part and the composite remainder vibrate relative to each other perpendicular to a principal plane of the workpiece part and the composite remainder (patent claim 10).

[0026] The invention is explained in more detail below with reference to exemplary schematic diagrams. These show:

[0027] Figure 1 shows a first design of a mechanical arrangement for separating sheet metal parts in a sheet metal processing operation.

[0028] Figures 4 show a second type of machine arrangement for joining and 5 separating sheet metal parts in a separating sheet metal processing operation and

[0029] Figure 6 shows a third type of mechanical arrangement for association-

[0030] TRUMPF Werkzeugmaschinen SE + Co. KG 2024P00234WOund 7 zeln of sheet metal parts of a separating sheet metal processing.

[0031] Figure 1 shows a workpiece assembly 1 on a machine arrangement 2.

[0032] The workpiece component assembly 1 was created by separating a sheet metal part and comprises as workpiece components good parts 3a, 3b, 3c, 3d, which are connected to a residual grid 4 of the separating sheet metal part processing via nanojoints.

[0033] The machine arrangement 2 is designed for separating the good parts 3a, 3b, 3c, 3d of the workpiece assembly 1 and has a separation unit 5 with a vibration generator 6 and a rejection unit 7.

[0034] A plate-like composite support 8 of the discharge unit 7 is provided with a discharge opening 9, which in the example shown in Figures 1 to 3 has a circular opening cross-section.

[0035] The size of the opening cross-section of the discharge opening 9 is variably adjustable. For this purpose, a shutter 10 with adjustable louvers 11 is provided at the discharge opening 9 as a closing device, forming a multi-part opening limiter of the discharge opening 9. The adjustment of the louvers 11 and the associated setting of the opening cross-section of the discharge opening 9 is carried out mechanically by means of an adjusting device 12 of known design.

[0036] To separate and remove a first good part 3a, the workpiece assembly 1 is arranged on the assembly support 8 of the removal unit 7 by means of a positioning device 13 as shown in Figure 2.

[0037] Before separating the product part 3a, the opening cross-section of the discharge opening 9 is adapted to the planar extent of the product part 3a to be discharged by means of the adjusting device 12, such that the product part 3a lies within the opening cross-section of the discharge opening 9 in the vertical projection onto the discharge opening 9.

[0038] In the example shown, the still switched-off separating unit 5 is manually placed on top of the good part 3a. After switching on the

[0039] TRUMPF Werkzeugmaschinen SE + Co. KG 2024P00234WO- 6 - 2024P00234WÖ

[0040] In the separating unit 5, the good part 3a is excited by the vibration generator 6 of the separating unit 5 to a vibration perpendicular to the main plane of the good part 3a and of a composite residue 14 connected to the good part 3a via the aforementioned nanojoints. Due to the vibration of the good part 3a relative to the composite residue 14 resting on the composite support 8, the nanojoints between the good part 3a and the composite residue 14 are destroyed, and the good part 3a is detached from the composite residue 14 and thereby separated. The composite residue 14 comprises the remaining good parts 3a, 3b, 3c, 3d and the residual lattice 4.

[0041] After the good part 3a is detached from the composite residue 14, the good part 3a passes through the discharge opening 9 under the influence of gravity and thus reaches a conventional parts tray (not shown) located below the discharge unit 7. A collection container or pallet, for example, could serve as the parts tray.

[0042] The composite remnant 14 remains as a new workpiece component composite on the composite support 8 and, after the first good part 3a has been ejected, is positioned opposite the ejection opening 9 by means of the positioning device 13 in such a way that the remaining good parts 3a successively come to lie above the ejection opening 9 and, after being detached from the respective composite remnant 14, can pass through the ejection opening 9 of the composite support 8 to the parts tray (not shown).

[0043] Following the separation and rejection of the good parts 3a, the separation and rejection of the good parts 3b and 3c are carried out. For this purpose, after adjusting the opening cross-section of the rejection opening 9 of the rejection unit 7 accordingly, the procedure is the same as for the good parts 3a (Figure 3). Due to the part geometry, the opening cross-section set for rejecting the good parts 3b can be retained for rejecting the good parts 3c. For the final rejection of the good parts 3d, the setting of the opening cross-section of the rejection opening 9 is then changed accordingly.

[0044] The remaining grid 4, after separating and removing all good parts 3a, 3b, 3c, 3d, is disposed of separately in the usual manner.

[0045] TRUMPF Werkzeugmaschinen SE + Co. KG 2024P00234WO The machine arrangements 2 sketched in Figures 4 and 5 and in Figures 6 and 7 differ from the machine arrangement 2 according to Figures 1 to 3 by the geometry of the respective discharge opening 9 of the composite support 8 and by the respective design provisions for adjusting the opening cross-section of the discharge opening 9.

[0046] According to Figures 4 and 5, the rectangular discharge opening 9 of the composite support 8 of the discharge unit 7 is limited by rectangular support segments 15 of the composite support 8, which can be variably positioned relative to each other in the plane of the composite support 8 by means of the adjusting device 12 with two-axis adjusting movements in order to vary the opening cross-section of the discharge opening 9.

[0047] The mechanical arrangement 2 shown in Figures 6 and 7 has a discharge unit 7 with a composite support 8, for whose rectangular discharge opening 9 a closing device with several flap-like closing elements 16 is provided. Depending on the planar extent of the material part 3a, 3b, 3c, 3d to be discharged, a corresponding number of adjacent closing elements 16 are pivoted from a closed position downwards to an open position to adjust the opening cross-section of the discharge opening 9.

[0048] TRUMPF Werkzeugmaschinen SE + Co. KG 2024P00234WO

Claims

- 8 - 2024P00234WÖ Patent claims 1. Machine arrangement for separating workpiece parts (3a, 3b, 3c, 3d) of a workpiece part assembly (1) produced by a separating workpiece machining of a plate-like workpiece, in particular a sheet metal, in which a workpiece part (3a, 3b, 3c, 3d) has a residual connection with a composite remainder (14) after the separating workpiece machining, which comprises at least one further workpiece part (3a, 3b, 3c, 3d), • with a separation unit (5) by means of which the workpiece part (3a, 3b, 3c, 3d) can be separated from the composite part (14) by destroying the residual connection of the workpiece part (3a, 3b, 3c, 3d) with the composite part (14), and • with a parts tray for the workpiece part (3a, 3b, 3c, 3d) separated from the composite part (14), characterized by • that an ejection unit (7) with at least one ejection opening (9) is provided between the separation unit (5) and the parts storage area, • that an opening cross-section of the discharge opening (9) is adapted to a planar extent of the detached workpiece part (3a, 3b, 3c, 3d) such that the detached workpiece part (3a, 3b, 3c, 3d) lies within the opening cross-section of the discharge opening (9) in the perpendicular projection onto the discharge opening (9) and • that the workpiece assembly (1) and the discharge opening (9) can be positioned relative to each other in such a way that, after the workpiece part (3a, 3b, 3c, 3d) has been detached from the assembly remnant (14), the discharge opening (9) can be passed from the detached workpiece part (3a, 3b, 3c, 3d), but not from the assembly remnant (14) to the parts storage area.

2. Machine arrangement according to claim 1, characterized in that the discharge unit (7) has several discharge openings (9) with an opening cross-section and that the opening cross-sections of the discharge openings (9) are different from each other and are adapted to different planar extents of detached workpiece parts (3a, 3b, 3c, 3d). TRUMPF Werkzeugmaschinen SE + Co. KG 2024P00234WO- 9 - 2024P00234WÖ 3. Machine arrangement according to one of the preceding claims, characterized in that at least one discharge opening (9) is provided with a closure device which can be moved into an open state and into a closed state, wherein the discharge opening (9) is passable by a detached workpiece part (3a, 3b, 3c, 3d) when the closure device is in the open state and wherein the discharge opening (9) is not passable by a detached workpiece part (3a, 3b, 3c, 3d) when the closure device is in the closed state.

4. Machine arrangement according to claim 3, characterized in that the closure device has a closure element (16) which can be controlled to move into an open position associated with the open state of the closure device and into a closed position associated with the closed state of the closure device.

5. Machine arrangement according to one of the preceding claims, characterized in that the discharge unit (7) has at least one discharge opening (9) whose opening cross-section is variably adjustable.

6. Machine arrangement according to claim 5, characterized in that the opening cross-section of at least one discharge opening (9) is variably adjustable, in that the discharge opening (9) has a multi-part opening boundary and the parts of the opening boundary are variably adjustable relative to each other.

7. Machine arrangement according to claim 6, characterized in that the parts of the opening limitation can be adjusted variably relative to each other, in that the opening limitation is designed in the manner of an aperture (10) which has lamellae (11) as parts of the opening limitation that can be adjusted variably relative to each other.

8. Machine arrangement according to one of the preceding claims, characterized in that the ejection unit (7) forms a composite support (8) on which the workpiece component assembly (1) is used to release the workpiece- TRUMPF Werkzeugmaschinen SE + Co. KG 2024P00234WOteils (3a, 3b, 3c, 3d) can be placed on the composite remainder (14) and is provided with at least one discharge opening (9).

9. Machine arrangement according to claim 8 and claim 6, characterized in that the opening cross-section of at least one discharge opening (9) is variably adjustable by support segments (15) of the composite support (8) forming the parts of the multi-part opening boundary of the discharge opening (9) and being variably adjustable relative to each other.

10. Machine arrangement according to one of the preceding claims, characterized in that the separating unit (5) has a vibration generator (6) by means of which a vibration can be generated to detach the workpiece part (3a, 3b, 3c, 3d) from the composite remainder (14), which causes the workpiece part (3a, 3b, 3c, 3d) and the composite remainder (14) to move relative to each other perpendicular to a principal plane of the workpiece part (3a, 3b, 3c, 3d) and the composite remainder (14). TRUMPF Werkzeugmaschinen SE + Co. KG 2024P00234WO

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