Mechanical device for separating workpiece components from removal

Abstract

A mechanical device (1) for separating a workpiece part (2) from a remaining grid (3) and a product union (5) of the workpiece part (2) comprises a vibration generator (6) capable of exciting the product union (5) to carry out a union vibration perpendicular to a main plane (7) of the product union (5) and releasing the workpiece part (2) from the product union (5). The vibration generator is provided with a vibration excitation unit (9) and a residual grid contact part (10). By means of a retaining mechanism of the retaining device (12), the product joint can be effectively supported for carrying out a joint vibration perpendicular to a main plane (7) of the product joint by means of the remaining grid (3) on the remaining grid contact (10), that is, the retaining mechanism can be switched between a functional state and a non-functional state, in the functional state, a force is applied to the product joint on the remaining grid (3) relative to the remaining grid contact (10).

Description

Technical Field

[0001] This invention relates to a mechanical device for separating a workpiece component, existing as a processed product of segmented processing of a plate-shaped workpiece (especially a sheet metal), from a remaining grid component, which is a further processed product of segmented workpiece processing, from a product assembly of a remaining grid and a workpiece component.

[0002] • Equipped with a vibration generator, the product assembly is excited to vibrate, the vibration of which is perpendicular to the principal plane of the product assembly, and the vibration causes the workpiece component to detach from the product assembly.

[0003] The vibration generator includes an excitation unit and a remaining grid contact part.

[0004] • The remaining grid contact portion can be excited by an excitation unit to implement vibration of the contact portion perpendicular to the main plane of the product assembly. Background Technology

[0005] In the case of segmented sheet metal processing using a segmentation device (e.g., a laser segmentation device), sheet metal components and a remaining grid that at least partially surrounds the sheet metal components are produced as processed products. To simplify removal of the processed products from the segmentation device, in segmented sheet metal processing, the sheet metal components are not completely separated from the remaining grid. More precisely, a fine or nano-joint is left between the remaining grid and the sheet metal components, allowing the remaining grid and the sheet metal components to be handled as a whole when unloading the segmentation device. Furthermore, it is conceivable that the sheet metal components produced in segmented sheet metal processing may remain within the remaining grid due to thermal stress or edge curling after the segmentation process. In subsequent method steps after segmented sheet metal processing, the sheet metal components are separated from the remaining grid.

[0006] JP 2000094057 A discloses this type of prior art. The prior art relates to a machine assembly and method for blanking sheet metal processing. At the blanking station of the machine assembly, sheet metal parts and residual grids are produced from a sheet metal plate, wherein the sheet metal parts are connected to the residual grids via fine joints after blanking. The assembly of the residual grids and the sheet metal parts connected thereto is moved to a separation station, where multiple pairs of rollers follow each other along the direction of movement of the residual grids and sheet metal parts, and hereby alternately offset upwards and downwards from each other perpendicular to the direction of movement of the residual grids and sheet metal parts. A gap is constructed between the rollers of each pair of rollers. The residual grids carrying the sheet metal parts exiting the blanking station continuously pass through the gaps on the multiple pairs of rollers following each other along the direction of movement. Due to the mutual offset of the roller pairs, the residual grids carrying the sheet metal parts undergo multiple bends as they continuously pass through the roller pairs. Simultaneously, by means of the rollers of the roller pairs, the residual grids carrying the sheet metal parts are subjected to vibration perpendicular to the direction of movement. Therefore, during the blanking process, the tiny joint between the remaining grating and the sheet metal component breaks, and the sheet metal component that has detached from the remaining grating falls onto the product storage section arranged below the roller pair of the separation station. Summary of the Invention

[0007] The objective of this invention is to ensure that the workpiece components produced by segmented processing of plate-shaped workpieces are functionally and reliably separable from the remaining grids from segmented workpiece processing.

[0008] According to the invention, this task is accomplished by a mechanical device according to the invention.

[0009] This invention includes a holding device with a switchable holding mechanism. In its functional state, the holding mechanism effectively fixes the remaining grille of the product assembly, which consists of a workpiece component and the remaining grille, perpendicular to the main plane of the product assembly, onto the remaining grille abutment portion. According to the functional state of the holding mechanism, the remaining grille is reliably held onto the remaining grille abutment portion by applying force against it, and the remaining grille abutment portion swings perpendicular to the main plane of the product assembly.

[0010] The following describes a particular embodiment of the mechanical device according to the invention.

[0011] According to another embodiment, in an extended version of the invention, the remaining grille abutment portion is constructed on an abutment plate that can be excited by an excitation unit of a vibration generator to vibrate the abutment portion, and the abutment plate extends along the product assembly supported on the remaining grille abutment portion. When the workpiece component separates from the remaining grille, the abutment plate and the remaining grille abutment portion vibrate as a structural whole.

[0012] According to the invention, it is conceivable that the product assembly is secured to the remaining grid abutment portion by means of a retaining mechanism in a clamping manner to implement assembly vibration that causes separation of workpiece components. Additionally or alternatively, in a preferred embodiment of the invention, the remaining grid abutment portion has a press-in element protruding toward the remaining grid on the side facing the remaining grid, the press-in element being inserted into the remaining grid by force applied to the remaining grid by the retaining mechanism. By means of the press-in element on the remaining grid abutment portion, a form-locking connection is formed between the remaining grid abutment portion and the remaining grid that applies force against the remaining grid abutment portion, due to this form-locking connection, during assembly vibration implemented for separation of workpiece components, the product assembly is particularly reliably secured to the remaining grid abutment portion by means of the remaining grid.

[0013] According to another embodiment of the device according to the invention, a positioning stop acting parallel to the main plane of the product assembly is provided to define the positioning of the product assembly relative to the holding mechanism. The positioning stop, in particular, prevents the product assembly from colliding with the holding mechanism.

[0014] In another preferred embodiment of the invention, a clamping mechanism is provided as a retaining mechanism to releasably fix the remaining grille to the remaining grille abutment portion. During vibration of the assembly implemented for separating the workpiece components, the product assembly is effectively clamped at the remaining grille between the retaining mechanism of the retaining device according to the invention and the remaining grille abutment portion. Conventional adjustment actuators are used to move the clamping mechanism to a functional position.

[0015] The above-described type of press-in element can also be provided on the clamping mechanism of the mechanical device according to the invention for shape-locking fixation of the remaining grid during joint vibration implemented by separating workpiece parts.

[0016] Preferably, the clamping mechanism is a clamping bar configured as an angled rod. To secure the product assembly to the remaining grille abutment, the clamping arm of the clamping bar in the functional position acts on the remaining grille from behind on the side opposite to the remaining grille abutment, pressing the remaining grille against the remaining grille abutment. The clamping bar moves to the functional position by means of the aforementioned adjustment actuator.

[0017] In another embodiment, a plurality of retaining mechanisms of the above type are provided. These retaining mechanisms are spaced apart from each other parallel to the main plane of the product assembly. The machine device according to the invention is preferably used in applications where the remaining grille forms the edge of the product assembly. In its functional state, the retaining mechanisms press the remaining grille forming the edge of the product assembly against the remaining grille abutment portion.

[0018] In a preferred embodiment of the invention, the mutual spacing of the retaining mechanisms is adjustable by means of a spacing adjustment device to accommodate different forms of product assemblies fixed to the remaining grille abutment by means of the retaining mechanisms.

[0019] In another embodiment of the invention, each of the retaining mechanisms is provided with a positioning stop that functions parallel to the main plane of the product assembly for positioning the product assembly relative to the corresponding retaining mechanism.

[0020] Each of the retaining mechanisms can be configured as a clamping mechanism, and then configured as described above.

[0021] According to another embodiment of the mechanical device according to the invention, a special structure is provided for fixing the product assembly to the remaining grille abutment. To receive the product assembly, the clamping mechanism is moved by means of an adjusting actuator to an initial position set as a first non-functional state. In this initial position, the holding mechanisms have a mutual spacing parallel to the main plane of the product assembly, the spacing being greater than the extension of the product assembly parallel to its main plane. With the holding mechanisms in the initial position, the product assembly and the mechanical device according to the invention are positioned relative to each other such that the holding mechanisms are moved from the initial position to an intermediate position set as a second non-functional state by means of the adjusting actuator. In the intermediate position, the clamping mechanism acts on the product assembly from behind on the side opposite to the remaining grille abutment. Here, the clamping mechanism has not yet pressed the product assembly against the remaining grille abutment. In the functional position, a loading is generated on the product assembly against the remaining grille abutment, and the clamping mechanism is moved from the intermediate position to the functional position by means of the adjusting actuator.

[0022] If a positioning stop is provided on the mechanical device according to the invention, the positioning stop can also be used to guide the product assembly in the movement associated with the movement of the clamping mechanism from the intermediate position to the functional position.

[0023] In a preferred embodiment of the invention, the remaining grid abutment supports the product assembly in a horizontal orientation. Due to the horizontal orientation of the product assembly, the workpiece components separated from the remaining grid can be stored under gravity, particularly on a workpiece tray provided for this purpose. Similarly, under gravity, the remaining grid of the product assembly that initially remains on the device according to the invention after workpiece separation can also be removed by the mechanical device according to the invention, for example, by discarding it into a waste container. Attached Figure Description

[0024] The invention will now be explained in more detail with reference to exemplary schematic diagrams. These diagrams show:

[0025] Figure 1A schematic diagram of a mechanical device used to separate sheet metal components from a product assembly produced in segmented sheet metal processing, consisting of sheet metal components and remaining grids.

[0026] Figure 2 according to Figure 1 A perspective view of a retaining device in a mechanical assembly for securing the sheet metal component and the remaining grille.

[0027] Figure 3 according to Figure 2 The vertical side view of the retaining device.

[0028] Figure 4 Used for immediate support after processing of split sheet metal. Figure 1 Product trays for product components, and

[0029] Figures 5 to 7 Height diagram, used to illustrate according to Figure 2 and Figure 3 The working principle of the holding device. Detailed Implementation

[0030] Figure 1 A machine device 1 is shown for separating a workpiece component 2, in the form of a sheet metal part 2, from a remaining grid 3. The sheet metal part 2 and the remaining grid 3 are processed products of segmented sheet metal processing, which is performed by means of a laser cutting machine arranged away from the machine device 1 and not shown in the figure. During segmented sheet metal processing using the laser cutting machine, fine joints 4 are left between the sheet metal part 2 and the remaining grid 3, as well as between adjacent sheet metal parts 2. Due to the presence of these fine joints 4, Figure 1 The sheet metal component 2 and the remaining grid 3 form a product assembly 5, which is removed as a whole from the laser cutting machine and then taken over by the mechanical device 1 in the following manner.

[0031] Mechanical device 1 includes a vibration generator 6, by means of which the product assembly 5 is excited to vibrate, the vibration of the assembly being perpendicular to the direction of vibration. Figure 1 The main plane 7 of the product assembly 5, shown by the dashed line, causes the sheet metal component 2 to detach from the product assembly 5. The vibration direction of the vibration generator 6 and the product assembly 5 fixed thereon is... Figure 1 The number 8 is marked with a double arrow.

[0032] The vibration generator 6 has an unbalanced exciter 9 as an excitation unit and also has a residual grid abutment 10, which is integrated into the abutment plate 11 of the mechanical device 1.

[0033] The four pairs of mutually paired, ground-mounted fixing devices 12 of the mechanical device 1 are assembled on the abutment plate 11. From Figure 1 One pair of retaining devices is visible in the image. The second pair of retaining devices is relative to... Figure 1 The retaining device 12 is mounted on the mounting plate 11 perpendicular to the screen.

[0034] The retaining devices 12 each have a retaining mechanism, the structure of which is detailed in [reference needed]. Figure 2 and Figure 3 . Figure 2 and Figure 3 The image shows one of the fixing devices 12 and the associated remaining grille abutment 10 before they are installed on the abutment plate 11.

[0035] The clamping mechanism is configured with angled clamping rods 13, each clamping rod having two angle units 14, which are interconnected by clamping members 15. On the clamping members 15, the clamping rods 13 are provided with upwardly projecting press-in elements in the form of triangular cutting portions 16 in the illustrated embodiment. Corresponding triangular cutting portions 17 project downwards as press-in elements on the underside of the remaining grid abutment portion 10. For simplicity, Figure 3 Only the cutting portions 16 and 17 on the clamping rod 13 are shown. For example, an annular cutting portion could also be considered instead of the triangular cutting portions 16 and 17.

[0036] The clamping rod 13 has a leg structure clamping arm 18 with clamping elements 15.

[0037] With the aid of the pneumatic adjustment actuator 19 in the illustrated embodiment, the clamping rod 13 can be adjusted about a swing axis extending parallel to the main plane 7 of the product assembly 5 in the direction of the double arrow 20, thereby moving to a functional position and, in the illustrated embodiment, to two non-functional positions.

[0038] When assembled on the abutment plate 11, the clamping rods 13 of each of the retaining devices are positioned opposite each other at a distance parallel to the main plane 7 of the product assembly 5. To accommodate variations in the form of the product assembly 5, the distance between them can be variably adjusted along the direction of the double arrow 21 using conventional methods. Figure 1 ).

[0039] With the help of Figures 5 to 7 The process is illustrated very schematically in the diagram, with product assembly 5 as an example. Figure 1 It is fixed to the mechanical device 1 in the manner shown.

[0040] After the segmented sheet metal is processed, immediately support the product assembly 5 on... Figure 4 The product assembly 5 is placed on top of the support strip 23 of the product tray 22 in the usual manner.

[0041] In order to receive the product assembly 5 from the product tray 22, the clamping bars 13 of the mechanical device 1, which are positioned opposite each other at a previously adjusted mutual spacing, are adjusted by means of the adjusting drive 19 to the initial position set as a first non-working state. Figure 5 In the initial position, the clamping rods 13 have a mutual spacing parallel to the main plane 7 of the product assembly 5, the mutual spacing being greater than the extension of the product assembly 5 parallel to the main plane 7 of the product assembly 5.

[0042] When the clamping lever 13 is in the initial position, the product assembly 5 and the mechanical device 1, supported on the product tray 22, are positioned relative to each other such that the clamping lever 13 is moved from the initial position to an intermediate position, which is set as a second non-functional state, by means of the adjusting actuator 19. Figure 6 In the intermediate position, the clamping rod 13 and clamping arm 18 together are positioned on the product tray 22 into the middle space 24 of the support strip 23. Therefore, the product assembly 5 is acted from behind by the clamping arm 18 of the clamping rod 13 on the side opposite to the remaining grid abutment portion 10.

[0043] Starting from the middle position, the clamping lever 13 is moved to the functional position by means of the adjusting actuator 19. Figure 1 , 7 The product assembly 5, supported on the clamping arm 18 of the clamping rod 13, is guided here to the lateral positioning stop 25. For clarity, Figure 2 and Figure 3 Only the positioning stop 25 is shown.

[0044] In the functional position, the clamping rod 13 acts behind the remaining grid 3 on the side opposite to the remaining grid abutment 10 by means of the clamping arm 18. Here, the clamping rod 13 applies force to the product assembly 5 against the corresponding remaining grid abutment 10 at the remaining grid 3 by means of the clamping arm 18. Under the force applied by the clamping rod 13, the cutting portion 16 on the clamping rod 13 and the cutting portion 17 on the remaining grid abutment 10 have penetrated the remaining grid 10. Therefore, when the clamping rod 13 is in the functional position, the product assembly 5 is force-locked and form-locked, and thus very effectively fixed to the mechanical device 1.

[0045] If the remaining grid abutment portion 10 is now excited by the unbalanced exciter 9, causing the abutment portion to vibrate perpendicularly to the main plane 7 of the horizontally aligned product assembly 5, then the product assembly 5, which is horizontally fixed to the machine device 1, will vibrate perpendicularly to the main plane 7 of the product assembly 5 in the direction of the double arrow 8. Due to the vibration of the assembly, the fine joint 4 between the plate component 2 and the remaining grid 3 breaks, and the plate component 2 separates from each other and from the remaining grid 3.

[0046] Under the influence of gravity, the sheet metal component 2 separated from the remaining grid 3 is placed on a pallet trolley 26 (located below the mechanical device 1). The remaining grid 3, initially still fixed to the mechanical device 1, is disposed of separately, for example, by being disposed of in a waste container (not shown). For this purpose, the clamping rod 13 is moved from the clamping device 16 by means of the adjusting drive 19. Figure 7 The indicated function position is moved back to according to Figure 5 In the initial position.

Claims

1. A mechanical device for separating a workpiece component (2) and a remaining grid (3) from a product assembly (5) of the remaining grid (3) and the workpiece component (2), wherein the workpiece component exists as a processed product of segmented processing of a plate-shaped workpiece, particularly a plate, and the remaining grid exists as another processed product of segmented workpiece processing, the mechanical device having • A vibration generator (6) is used to excite the product assembly (5) to perform vibration of the assembly, the vibration of the assembly being performed perpendicular to the principal plane (7) of the product assembly (5), and the vibration of the assembly causing the workpiece component (2) to detach from the product assembly (5). ·in, The vibration generator (6) has an excitation unit (9) and a remaining grid contact part (10), and ·in, The remaining grille abutment portion (10) can be excited by means of an excitation unit (9) to implement vibration of the abutment portion perpendicular to the main plane (7) of the product assembly (5). The mechanical device is characterized by having a retaining device (12) with a retaining mechanism, by means of which the product assembly (5) can be effectively supported for vibrating the assembly by means of the remaining grille (3) at the remaining grille abutment (10) perpendicular to the main plane (7) of the product assembly (5), in that the retaining mechanism can be switched between a functional state and a non-functional state, in which the product assembly (5) is subjected to force against the remaining grille abutment (10) at the remaining grille (3).

2. The mechanical device according to claim 1, characterized in that, The remaining grille abutment (10) is constructed on an abutment plate (11), which can be excited by means of the excitation unit (9) to implement vibration of the abutment, and the abutment plate extends along the product assembly (5) supported on the remaining grille abutment (10).

3. The mechanical device according to any one of the preceding claims, characterized in that, The remaining grid abutment portion (10) is provided with a pressing element (17) on the side facing the remaining grid (3). The pressing element protrudes toward the remaining grid (3) and is inserted into the remaining grid (3) by applying force to the remaining grid (3) through the retaining mechanism.

4. The mechanical device according to any one of the preceding claims, characterized in that, A positioning stop (25) is provided that acts parallel to the main plane (7) of the product assembly (5) to position the product assembly (5) relative to the retaining mechanism.

5. The mechanical device according to any one of the preceding claims, characterized in that, The holding mechanism is configured as a clamping mechanism, which is adjusted to a functional position set as a functional state by means of an adjustment driver (19), and in the functional position, the remaining grille (3) is applied to the remaining grille abutment (10) on the side away from the remaining grille abutment (10) with force.

6. The mechanical device according to claim 5, characterized in that, The clamping mechanism has a pressing element (16) on the side facing the remaining grid (3), the pressing element protruding toward the remaining grid (3), and the pressing element is inserted into the remaining grid (3) by applying force to the remaining grid (3) through the clamping mechanism.

7. The machine device according to claim 5 or claim 6, characterized in that, The clamping mechanism is constructed as a clamping rod (13) with a clamping arm (18), and ·in, The clamping rod (13) is able to swing about a swing axis extending parallel to the main plane (7) of the product assembly (5) by means of the adjustment driver (19), and in the functional position, it acts on the remaining grille (3) from behind the remaining grille abutment (10) on the side away from the remaining grille abutment (10) by means of the clamping arm (18) and applies force against the remaining grille abutment (10).

8. The mechanical device according to claim 7, characterized in that, The clamping rod (13) is constructed as an angled rod.

9. The machine device according to any one of the preceding claims, characterized in that, In addition to the aforementioned retaining mechanism, another retaining mechanism is also provided, and • The retaining mechanism and the other retaining mechanism are positioned opposite each other at a distance parallel to the main plane (7) of the product assembly (5), and can be switched between a functional state and a non-functional state. In the functional state, the remaining grille (3) that forms the edge of the product assembly (5) is abutted against the remaining grille abutment (10) to apply force.

10. The mechanical device according to claim 9, characterized in that, The mutual distance between the holding mechanism and the other holding mechanism can be adjusted variably.

11. The mechanical device according to claim 9 or claim 10, characterized in that, Each of the retaining mechanisms is provided with a positioning stop (25) acting parallel to the main plane (7) of the product assembly (5) for positioning the product assembly (5) relative to the retaining mechanism.

12. The mechanical equipment according to any one of claims 9 to 11, characterized in that, Each of the holding mechanisms is configured as a clamping mechanism, which can be adjusted to a functional position set as a functional state by means of an adjustment driver (19), and in the functional position, applies force to the remaining grille (3) against the remaining grille abutment (10) on the side opposite to the remaining grille abutment (10).

13. The mechanical device according to claim 12, characterized in that, Each of the retaining mechanisms is provided with a pressing element (16) on the side facing the remaining grid (3), the pressing element protruding toward the remaining grid (3), the pressing element penetrating into the remaining grid (3) due to the force applied to the remaining grid (3) by the clamping mechanism.

14. The machine device according to claim 12 or claim 13, characterized in that, Each of the retaining mechanisms is configured as a clamping rod (13) with a clamping arm (18), preferably configured as an angled rod, and ·in, Each of the clamping rods (13) is able to swing about a swing axis that extends parallel to the main plane (7) of the product assembly (5) by means of the adjustment driver (19), and in the functional position, the clamping arm (18) acts on the remaining grille (3) from behind on the side away from the remaining grille abutment (10) and applies force against the remaining grille abutment (10).

15. The machine device according to any one of claims 12 to 14, characterized in that, The clamping mechanism can be adjusted by means of the adjustment driver (19) to an initial position set as a first non-functional state, from the initial position to an intermediate position set as a second non-functional state, and from the intermediate position to the functional position. The clamping mechanisms in the initial position have a mutual spacing greater than the extension of the product assembly (5) parallel to the main plane (7) of the product assembly (5), and The clamping mechanism in the initial position - The remaining grille (3) is arranged on the side opposite to the remaining grille abutment (10) of the product assembly (5) with a mutual spacing smaller than the extension of the main plane (7) of the product assembly (5), the remaining grille forming the edge of the product assembly (5), and - Compared to the functional position, the main plane (7) perpendicular to the product assembly (5) has a larger spacing with the remaining grille abutment (10).

16. The mechanical device according to any one of the preceding claims, characterized in that, The remaining grille abutment (10) is configured to effectively support the horizontally oriented product assembly (5) perpendicular to the main plane (7) of the product assembly (5).

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