WO2010094565A2

WO2010094565A2 - Device for machining plate-shaped workpieces

Info

Publication number: WO2010094565A2
Application number: PCT/EP2010/051307
Authority: WO
Inventors: Hans Hundegger
Original assignee: Hans Hundegger
Priority date: 2009-02-20
Filing date: 2010-02-03
Publication date: 2010-08-26
Also published as: WO2010094565A3; DE202009002435U1

Abstract

The invention relates to a device for machining plate-shaped workpieces, comprising a machine table (1) for supporting the plate-shaped workpieces, a positioning device (7) for displacing the workpieces on the machine table (1) along at least a first axis (X-axis) and a cross member (6) disposed above the machine table (1), on which at least one machining unit (27) is displaceably arranged along two further axes (Y-axis, Z-axis) perpendicular to the first axis (X-axis). The at least one machining unit (27) comprises a circular saw (29) that can be pivoted about a vertical axis (31) or a chain saw or a milling or drilling device, and the positioning device (7) comprises several workpiece grippers (15) which can be actuated separately from one another.

Description

Device for processing plate-shaped workpieces

The invention relates to a device for processing plate-shaped workpieces, in particular wood panels.

In the processing of wood panels or other plate-shaped workpieces results in the problem that in addition to pure straight machining often also oblique or curve machining performed and more complex geometries must be made. However, the previously known devices for working plate-shaped workpieces often have limited movement options, so that more complex processing can be performed only by multiple re-tightening or with considerable effort.

The object of the invention is to provide a device of the type mentioned, which allows fast and accurate processing of plate-shaped workpieces, even with complex processing tasks.

This object is achieved by a device having the features of claim 1. Advantageous embodiments and expedient developments of the device according to the invention are specified in the dependent claims.

The inventive device has a machine table for supporting the plate-shaped workpieces, a positioning device for moving the workpieces on the machine table in at least a first axis and arranged above the machine table cross member on which arranged at least one processing unit in two perpendicular to the first axis further axes are. The at least one processing unit includes a circular saw unit pivotable about a vertical axis or a chain saw or a milling or drilling device. By an adjustment of the processing unit relative to the direction of movement of the positioning and corresponding movements of the processing unit in three axes, for example, bevel cuts on the plate-shaped workpieces can be made in a quick and easy way. The positioning device contains several separately operable and removable from the workpiece as required gripper elements, so that processing can also be done in the gripper elements. If the circular saw unit or a tool of another processing unit passes into the region of the gripper element, this can be opened and returned, so that machining can also take place at this point. In this case, the other gripper elements can be closed and remain in their clamping position, so that a further support of the workpiece is ensured. In this way, an automatic complete processing of the plate-shaped workpieces can be done even with more complex geometries on the entire surface of the workpieces.

The device according to the invention enables fully automatic and accurate machining of plate-shaped or flat components, such as e.g. OSB, chipboard, 3-ply or plywood boards but also plasterboard, Fermacell or Eternit boards. The processing of MDF, HDF or similar wood fiber boards is possible without any problems. The plate-shaped components may e.g. milled, drilled, sawn and inscribed, so that an automatic complete machining is possible even without complex Umspannvorgänge. Main application areas are e.g. the cutting and processing of skins in timber frame construction, cladding in interior work or also the factory cutting of façade and fiberboard. In this case, the component data can be transferred to the machine for processing via a data interface of all commercially available wood construction CAD programs. Alternatively, with the help of a suitable software also a manual input is possible.

In a particularly advantageous embodiment, the positioning device for the transport of the workpieces on the machine table is designed as a gripper carriage with a plurality of horizontally displaceable workpiece grippers. The workpiece grippers are expediently arranged on a carrier which is displaceable with respect to the gripper carriage, so that each workpiece gripper can be quickly removed from the processing area as required.

Preferably, the workpiece grippers each have a fixed in height clamping jaw and a contrast vertically movable clamping jaw. The workpiece grippers can also contain two movable clamping jaws. In a basic configuration of the device according to the invention, a processing unit which can be moved in at least two axes is arranged on the cross member. The at least one processing unit can be pivotable about at least one axis of rotation. Conveniently, however, several processing units are provided. The multiple processing units are arranged in a stable and cost-effective design on a movable on the cross member common support. But it can also be provided with one or more processing units two or more separately movable supports.

The circular saw is suitably guided vertically movable on a support by means of a carriage. On the carriage, the circular saw is arranged pivotably about the vertical axis.

Other features and advantages of the invention will become apparent from the following description of a preferred embodiment with reference to the drawing. Show it:

Figure 1: a erfmdungsgemäße apparatus for processing plate-shaped

Workpieces in a plan view;

Figure 2: the device of Figure 1 in a partially cutaway front view;

FIG. 3 shows the device of FIG. 1 in a side view;

Figure 4: a detailed view of the positioning and

Figure 5: a detailed view of the circular saw unit.

The apparatus shown in Figures 1 to 3 in different views for the processing of plate-shaped workpieces includes a preferably designed as a steel construction machine table 1 with a front support area 2, a central processing area 3 and a rear removal area 4. In the processing area 3, the machine table 1 of a spanned on lateral supports 5 arranged cross member 6 in the manner of a portal. On the cross member 6 are different processing units for different tools in multiple axes movably mounted. On the machine table 1, a movable positioning device 7 in its longitudinal direction is further provided for displacing the resting on the machine table 1 workpieces.

For the support of the workpieces before processing a separate feed table 8 is arranged in the illustrated embodiment on the one longitudinal side of the machine table 1 in the support area 2. This task table 8 can be designed as a fixed table or as a lifting table. At the opposite side of the feed table 8 longitudinal side of the machine table 1, a longitudinal fixed stop 9 is mounted for the lateral abutment of the plate-shaped workpieces. This hard stop 9 may e.g. be designed as a guide rail or guide ruler. To remove the workpieces after processing, a separate delivery table 10 is provided on one longitudinal side of the machine table 1 in the removal area 4. Also, this storage table 10 may be formed as a fixed table or as a lifting table. In the removal area 4 of the machine table 1 is also a Ausschubeinrichtung 11 for the automatic removal of the finished workpieces attached to the storage table 10. On the feed table 8 roller rails 12 are provided for easier loading of the device with workpieces.

For as gentle and low-friction transport of the workpieces sliding plates 13 are mounted on the machine table 1 and on the tray table 10 in the illustrated embodiment of low-friction material. These sliding plates 13 may e.g. be made of low-friction high-pressure laminates (HPL plates). But also machine table 1 and tray table 10 can be equipped with rollers or other sliding elements for supporting the workpieces.

In the embodiment shown, the workpieces on the machine table 1 by means of the positioning device 7 in a first horizontal axis (X-axis) are displaceable. The positioning device 7 shown separately in Figure 4 is designed as a gripper carriage 14 with a plurality of independently operable workpiece grippers 15. The gripper carriage 14 is slidably guided on the machine table 1 via guide rollers 16 and associated guide rails and can be accurately positioned by a servo geared motor and a toothed shaft profile rail. In the embodiment shown on the gripper carriage 14 three juxtaposed pliers-shaped workpiece gripper 15, each with a fixed in height clamping jaw 17 and one by means of a Pneumatic drive 18 in contrast arranged vertically adjustable clamping jaw 19. The fixed clamping jaw 17 is arranged such that its upper side lies at the level of the underside of the workpiece. The workpiece grippers 15 are each mounted on a relative to the gripper carriage 14 in the longitudinal direction of the workpiece table 1 horizontally movable carrier 20. Each of the carriers 20 with the workpiece gripper 15 arranged thereon can be driven separately and separately by means of a further pneumatic drive 21. As a result, each workpiece gripper 15 can be extended separately relative to the gripper carriage 14 or pulled in as required and thus removed from the processing area of the processing units.

For the lateral guidance of the workpieces during processing, a pressing device 22 is attached to one of the two lateral supports 5. The pressing device 22 includes an adjustable transverse to the direction of displacement of the workpiece pressure roller 23, which comes to rest on the fixed stop opposite longitudinal side of the workpiece. As is apparent from Figure 1, the pressure roller 23 is mounted in the embodiment shown there at the end of a transverse to the machine table 1 telescopically adjustable support arm 24.

On the cross member 6 a plurality of processing units in the embodiment shown in a first horizontal axis (X-axis) vertical second horizontal axis (Y-axis) and a vertical vertical axis (Z-axis) are arranged movable. As can be seen in particular from FIG. 3, a support 25 is guided movably on the cross member 6 via guide rails 26 transversely to the longitudinal direction of the machine table 1 in the Y axis. The support 25 is designed as a massive box construction for receiving various processing units and can be positioned via a servo geared motor and an associated toothed rail.

In Figures 1 and 2 it can be seen that on the movable in the Y-axis support 25 on one side of the cross member 6 a plurality of juxtaposed, in the Z axis electromotively or pneumatically via linear actuators separately adjustable milling or drilling units 32 and on the other side of the cross member 6, a circular saw unit 27 are mounted as processing units. On the support 25 but also labeling units or other processing units can be attached. The circular saw unit 27 shown separately in Figure 5 includes a support 25 fixed to the support 28 to which a circular saw 29 is arranged vertically adjustable via a carriage 30. On the carriage 30, the circular saw 29 is mounted to pivot about a vertical axis 31 by 180 °. Recognizable suction devices can be provided on the circular saw unit 27 and also on the milling or drilling units 32 in FIG.

In a basic version of the device described above, the plate-shaped workpieces to be processed can be placed on the feed table 8 by means of a hall crane or a stacker and pushed by hand into the support area 2 of the machine table 1 for abutment with the fixed stop 9. The front side, the alignment of the workpieces on the workpiece grippers 15 of the gripper carriage 14 done. In an expansion stage, the transport of the workpieces to be processed to the support area 2 via a lifting table and / or an automatic feeder can be done.

The gripper carriage 14 grips the workpiece with the workpiece grippers 15 on the left side of the workpiece and positions the workpiece for the corresponding processing in the processing area 3. By appropriate Traversing movements of the gripper carriage 14 in the X-axis, the support in the Y-axis and the respective processing unit in the Z-axis can then be done the different edits. By pivoting the circular saw 29 and corresponding traversing movements of the gripper carriage 14 and supports 25, e.g. Bevel cuts are made. All tools are driven from above over the workpiece to be machined and are mounted on the stable support 25 hanging. If necessary, each workpiece gripper 15 can be pneumatically withdrawn from the processing area in order to allow processing in the area of the workpiece gripper 15 as well.

After machining, the workpiece is transported by the gripper carriage 14 into the removal area 4 of the machine table 1. Here, the finished workpieces are pushed over the Ausschubeinrichtung 11 on the tray 10. While the operator is sorting the finished parts, the next workpiece can already be processed. This ensures low cycle times and high productivity.

Claims

claims

1. Apparatus for processing plate-shaped workpieces with a machine table (1) for supporting the plate-shaped workpieces, a positioning device (7) for displacement of the workpieces on the

Machine table (1) in at least one first axis (X-axis) and one above the machine table (1) arranged cross member (6) on which at least one processing unit (27) in two to the first axis (X-axis) vertical further axes ( Y-axis, Z-axis) is arranged movable, characterized in that the at least one processing unit (27) one to a

Vertical axis (31) pivotable circular saw (29) or a chainsaw or a milling or drilling device contains and that the positioning device (7) has a plurality of separately operable workpiece gripper (15).

2. Apparatus according to claim 1, characterized in that the positioning device (7) is designed as a gripper carriage (14) with a plurality of horizontally displaceable workpiece grippers (15).

3. A device according to claim 2, characterized in that the workpiece gripper (15) on a relative to the gripper carriage (14) displaceable

Carrier (20) are arranged.

4. Device according to one of claims 1 to 3, characterized in that the workpiece gripper (15) each have a fixed in height clamping jaw (17) and a contrast vertically movable clamping jaw (19) or two adjustable

Have clamping jaws.

5. Device according to one of claims 1 to 4, characterized in that on the cross member (6) a plurality of processing units (27, 32) are arranged.

6. The device according to claim 5, characterized in that the plurality of processing units (27, 32) on a on the cross member (6) movable common support (25) are arranged.

7. Device according to one of claims 1 to 6, characterized in that the circular saw (29) on a support (28) by means of a carriage (30) is arranged vertically movable.

8. The device according to claim 7, characterized in that the circular saw (29) on the carriage (30) about the vertical axis (31) is pivotally mounted.

9. Device according to one of claims 1 to 8, characterized in that on the machine table (1) a fixed stop (9) and a pressing device (22) for pressing the workpieces to the fixed stop (9) are mounted.

10. Device according to one of claims 1 to 9, characterized in that the machine table (1) has a front support area (2), a central processing area (3) and a rear removal area (4).

11. The device according to claim 10, characterized in that on the support area (2) of the machine table (1) a feed table (8) and at the removal area (4) of the machine table (1) a storage table (10) are arranged.

12. Device according to one of claims 1 to 11, characterized in that the processing unit (27) is pivotable about at least one axis of rotation.