MACHINE TOOL HAVING MACHINING SPACES AND METHOD

Abstract

The invention relates to a machine tool and to a method by means of which workpieces of, for example, wood or wood materials can be machined. Such a machine tool and such a method can be used in the field of furniture production or component in production. A separating element is provided. A first machining region can be at least partly separated from a second machining region by the separating element.

Claims

1. The machining device for machining workpieces, having: a first workpiece holding unit for holding a first workpiece and a second workpiece holding unit for holding a second workpiece; and a separating element, a first machining region being able to be at least partially separated from a second machining region by the separating element, one of the workpiece holding units being arranged or being able to be arranged in each machining region, wherein the separating element is movable in order to change the dimensions of the first and second machining region.

2. The machining device according to claim 1, wherein the separating element is attached to a movable unit or formed integrally with it, said movable unit having a drive for moving the movable unit.

3. The machining device according to claim 2, wherein the separating element is movable relative to the movable unit.

4. The machining device according to claim 1, wherein the separating element is moveable along a linear guide.

5. The machining device according to claim 1, wherein the separating element is formed plate-shaped.

6. The machining device according to claim 1, wherein a first extraction unit is provided in a vertical direction beneath the first and/or second workpiece holding unit.

7. The machining device according to claim 1, wherein the machining device has at least one lateral extraction unit.

8. The machining device according to claim 1, characterized by a control unit which is configured to move the separating element before, during or after a clamping of a workpiece with the first workpiece holding unit and/or the second workpiece holding unit.

9. The machining device according to claim 1, characterized by a first machining aggregate and a second machining aggregate which are configured for machining.

10. The machining device according to claim 1, wherein the first workpiece holding unit is carried by a first movable carrier which is movable along a first guide unit, in particular a rail, and/or the second workpiece holding unit is carried by a second movable carrier which is movable along a second guide unit.

11. The machining device according to claim 1, wherein the first and/or second workpiece holding unit is realized such that a workpiece can be clamped on two sides of the workpiece holding unit.

12. A method for workpiece machining, preferably using a device according to claim 1, comprising: holding at least one workpiece with a first workpiece holding unit or a second workpiece holding unit; a first machining region being at least partially separated from a second machining region by a separating element and the at least one workpiece being arranged or becoming arranged in the first or second machining region; moving the separating element before, during or after the holding of the at least one workpiece in order to change the dimensions of the first and second machining region; and machining the at least one workpiece.

13. The method according to claim 12, wherein a first workpiece is held with the first workpiece holding unit, and a second workpiece is held with the second workpiece holding unit.

14. The method according to claim 12, the first workpiece being reclamped on the first workpiece holding unit after the machining of a first longitudinal side, in order to machine a second longitudinal side of the workpiece, and/or the second workpiece being reclamped on the second workpiece holding unit after the machining of a first longitudinal side, in order to machine a second longitudinal side of the second workpiece.

15. The method according to claim 12, the separating element being moved along a linear guide.

16. The method according to claim 12, the separating element for separating the first machining region from the second machining region being moved in between them, in particular pivoted.

17. The machining device according to claim 2, wherein the drive comprises a servomotor.

18. The machining device according to claim 3, wherein the separating element is pivotable relative to the movable unit.

19. The machining device according to claim 4, wherein the linear guide is aligned in a horizontal direction.

20. The machining device according to claim 5, wherein the separating element has a contour comprising inclined surfaces and/or curved surfaces for diverting chips in an at least partially vertical downwardly aligned direction.

21. The machining device according to claim 6, wherein the first extraction unit comprises a funnel for receiving chips.

22. The machining device according to claim 9, wherein the first machining aggregate is able to be arranged in the first machining region and the second machining aggregate in the second machining region.

23. The machining device according to claim 10, wherein at least one of the first guide unit or the second guide unit is a rail.

24. The machining device according to claim 10, wherein the first and/or second guide unit extends transversely to the guide of the separating element.

25. The machining device according to claim 24, wherein the first and/or second guide unit extends perpendicular to the guide of the separating element.

26. The method according to claim 13, wherein the first workpiece and the second workpiece are machined at least partially simultaneously.

27. The method according to claim 15, wherein the linear guide is aligned in a horizontal direction.

28. The method according to claim 16, wherein the separating element is for separating the first machining region from the second machining region being pivoted in between them.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0047] FIG. 1 shows a side view of a preferred embodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0048] One preferred embodiment of the present invention is described below by means of the enclosed FIG. 1. Further modifications of certain features/components mentioned in this context can each be combined with one another in order to form new embodiments of the invention.

[0049] The embodiment described below relates to a machining device which is used in the field of machining workpieces of wood, wood materials or the like. Purely by way of example, the workpieces can be elements for windows, doors, furniture or the like.

[0050] The machining device comprises a first machining region 1 as well as a second machining region 2 which, as described below in detail, are variable. Furthermore, a traverse 50 is provided, which extends along the machining device.

[0051] In the first machining region 1, a workpiece holding unit 101 is arranged with which a workpiece W1 can be held or clamped in the situation shown in FIG. 1. The first workpiece holding unit 101 is carried by a first movable carrier 103 that is movable along a guide unit 51, in particular a rail, of the traverse 50. The movement of the movable carrier 103, and consequently the first workpiece holding unit 101, occurs here perpendicular to the display plane in FIG. 1.

[0052] In the present embodiment, the first workpiece holding unit is formed by a plurality of clamping grippers that are arranged along the movable carrier.

[0053] Furthermore, in the first machining region, a first machining spindle 102 (machining aggregate) is arranged with a first machining tool 102a. In the present case, the first machining tool 102a is a milling machining tool, such as a milling cutter or a drill.

[0054] In the second machining region 2, there is a second workpiece holding unit 201 with which a second workpiece W2 can be held or clamped in the situation shown in FIG. 1. The second workpiece holding unit 201 is carried by a second movable carrier 203 which is movable along a first guide unit 52, in particular a rail, of a traverse 50. The movement of the moveable carrier 203, and consequently of the second workpiece holding unit 201, occurs perpendicular to the display plane in FIG. 1, in this embodiment example.

[0055] In the present embodiment, the second workpiece holding unit is formed by a plurality of clamping grippers that are arranged along the movable carrier.

[0056] Furthermore, in the second machining region 2, there is a second machining spindle 202 (machining aggregate) with a second machining tool 202a. In the present case, the second machining tool 202a is also a milling machining tool, such as a milling cutter, a drill, or the like.

[0057] According to a modification of the embodiment shown in FIG. 1, at least one of the machining tools can also be a non-milling tool. Purely by way of example, it can be a tool for smoothing the surface, a tool for applying a coating material, or the like.

[0058] Although the workpiece holding units 101, 102 in the embodiment shown in FIG. 1 are formed as mechanical clamping units, it is evident that the workpiece holding units can also be formed as vacuum clamps or as a workpiece table.

[0059] To change the dimensions of the machining regions 1, 2, a separating element 10 (separating wall) is provided which is attached to a movable unit 11. The movable unit 11 comprises a drive unit 12 and is arranged movably along a guide 13 that is aligned in a horizontal direction. In the embodiment described here, the guide 13 is a guide rail. Since the movable unit 11 with the separating element 10 can be moved along the guide 13, the machining regions 1, 2 can be enlarged or reduced.

[0060] Moreover, the separating element 10 is arranged pivotable relative to the movable unit 11, so that the machining regions 1, 2 can be combined into one shared machining region when the separating element 10 is removed or pivoted out (for example, manually or mechanically).

[0061] The separating element 10 has a plate-like shape and, according to one modification of the embodiment described here, comprises chip guiding contours (not shown in the present side view) on its surface in order to divert chips S in such a manner that they move into the area of a first extraction unit 20.

[0062] The first extraction unit 20 is, when viewed in the vertical direction, arranged beneath the machining regions 1, 2, and comprises a first hose 21 as well as a funnel 22. The funnel 22 is opened in the direction of the machining regions 1, 2 in order to receive falling chips S. The chips S that are received in this manner can then be conveyed with the hose 21 into a receptacle (not shown).

[0063] In the embodiment shown here, in addition to the first extraction unit 20 described here, the machining device has a second extraction unit 30 which ensures a lateral extraction. For this, the second extraction unit 30 comprises a second hose 31 as well as a second suction means 32.

[0064] A third extraction unit 40 which comprises a third hose 41 as well as a third suction means 42 is provided in the second machining region 2. In the embodiment described here, the second suction means 32 is arranged substantially opposite to the third suction means 42.

[0065] An example of the operation of the machining device according to the embodiment of the invention is described below.

[0066] A first workpiece W1 is clamped by the workpiece holding unit 101. Simultaneously or subsequently, a second workpiece W2 is clamped by the second workpiece holding unit 201. In the embodiment shown here, the workpieces are arranged substantially parallel to one another, with another arrangement being conceivable in accordance with further variants.

[0067] The movable unit 11 is moved along the guide 13 before, during or after the clamping of the workpieces W1, W2 in order to position the separating element 10 corresponding to the dimensions of the workpieces W1, W2 or the machining spindles 102, 202. In the present embodiment example, the second machining tool 202a has, for example, a larger diameter than the first machining tool 102a. Consequently, the movable unit 11 is moved with the separating element 10 in such a manner that the second machining region 2 is larger than the first machining region 1. Consequently, the mobility of the second machining spindle 202 is ensured.

[0068] Subsequently, the workpieces W1, W2 can be machined. The chips S that are created during the machining of the first and the second workpiece W1, W2 are thereby diverted by the separating element 10 and guided in the direction of the funnel 22 of the first extraction unit 20. Consequently, the chips S reach the funnel 22 of the first extraction unit 20 and are extracted through the first hose 21.

[0069] After the workpieces W1, W2 have been machined, the separating element 10 is, for example, pivoted out of the space of the machining regions 1, 2 and the workpiece W2 is removed from the machining device. Subsequently, the workpiece W1 can be transferred from the first workpiece holding unit 101 to the second workpiece holding unit 201 and the first workpiece holding unit 101 can be loaded with a new workpiece.

[0070] Alternatively, it is possible to reclamp the workpiece on the other side of the workpiece holding unit after a machining on a longitudinal side. Thus, the workpiece can be machined on both longitudinal sides. This is made possible in the present embodiment example since the workpiece holding units have clamping grippers that are aligned on two sides, and consequently can accommodate one workpiece from two opposite sides.

[0071] In a further method step, the separating element 10 is pivoted back into the region of the machining regions 1, 2, and the movable unit 11 is optionally moved along the guide 13 in order to change the size of the machining regions 1, 2 corresponding to the now present situation.

[0072] Alternatively to this, it is possible to remove one of the workpieces W1, W2 or both workpieces W1, W2 from the machining device and to thereby hold the separating element 10 in its position. After the first and/or second workpiece holding device 101, 201 has been loaded again with a workpiece, the position of the separating element 10 can be adjusted.

[0073] The movement of the separating element 10 occurs independently of a movement of the first and/or second machining spindle. Consequently, a high degree of flexibility is ensured.

[0074] According to a further modification, several separating elements can also be provided in order to separate the two machining regions 1, 2. Whether only one of the separating elements or several separating elements are operated can be decided in accordance with the specific requirement (e.g. workpiece size).

[0075] Moreover, multiple separating elements can also be provided in order to separate three or more machining regions. According to one preferred variant, the several separating elements can be moved independently from one another in order to specifically change the several machining regions in this manner.