MACHINING DEVICE FOR THROUGH-FEED MACHINING, CONTROL APPARATUS AND METHOD

Abstract

The present invention relates to a machining device (100), a control apparatus (200) and a method for the continuous machining of workpieces (W.sub.1-W.sub.3), preferably plate-shaped workpieces (W.sub.1-W.sub.3), which preferably consist at least in sections of wood, wood material and/or synthetic material, a synchronization of a movement of a machining aggregate (130) with a feed movement of the workpiece (W.sub.1-W3) being carried out by a first control (201) and a positioning of the machining aggregate (130) according to a preset machining movement being carried out by a second control (202) with electronic cam disc.

Claims

1. A machining device for the non-cycled through-feed machining of plate-shaped workpieces, comprising: at least one machining apparatus comprising: at least one machining aggregate for machining the workpiece, and a shifting apparatus for moving the at least one machining agregate, and at least one control apparatus for the at least one machining apparatus, comprising: a first control for controlling the synchronization of the movement of the at least one machining aggregate with the through-feed movement of the workpiece, and a second control for controlling the positioning of the at least one machining aggregate according to a preset machining movement.

2. The maching device according to claim 1, wherein the first control is a higher-level master control and the second control with electronic cam disc is a slave control subordinate to the first control.

3. The maching device according to claim 1, wherein h the movement of the machining aggregate for synchronizing the movement of the machining aggregate with the through-feed movement of the workpiece and the movement of the machining aggregate for performing the positioning of the machining aggregate according to the preset machining movement are carried out to overlap with each other.

4. The maching device according to claim 1, configured to perform at least a 3-sided through-feed machining of the workpiece.

5. The maching device according to claim 1, configured to perform at least one of the following machining steps: horizontal drilling, vertical drilling, sawing, milling, coating, gluing, printing, laser machining and the like.

6. The maching device according to claim 1, wherein h the second control is configured to receive a start signal from the first control so as to control, after receipt of the start signal, the shifting apparatus according to the preset machining movement.

7. The maching device according to claim 1, further comprising: a conveying apparatus for conveying the workpieces in a conveying direction; and a control for controlling the through-feed movement of the workpieces.

8. The maching device according to claim 1, wherein h if at least two or more machining apparatus are provided, each machining apparatus comprises a separate second control to control the positioning of the machining aggregate according to the preset machining movement.

9. The maching device according to claim 1, wherein h the shifting apparatus is configured to shift the machining aggregate in at least two directions approximately orthogonal to each other.

10. The maching device according to claim 1, wherein h the at least one machining apparatus further comprises at least one first drive for driving the machining aggregate, and at least two second drives for driving the shifting apparatus.

11. The maching device according to claim 1, wherein h, if at least two or more machining apparatus are provided, the machining apparatus are arranged one behind the other in the conveying direction and independently execute, one after the other, machining operations on the workpiece.

12. The maching device according to claim 1, wherein h a machining apparatus comprises at least.

13. The maching device according to claim 1, wherein h at least the drives of the shifting apparatus are designed as direct drives.

14. The maching device according to claim 1, further comprising a synchronization apparatus configured to detect a feed movement of the workpiece.

15. A control apparatus for controlling a non-cycled machining operation of workpieces, for controlling the machining device according to claim 1, comprising: a first control for controlling a synchronization of a movement of a machining aggregate with a through-feed movement of the workpiece; and a second control for controlling a positioning of the machining aggregate according to a preset machining movement.

16. The control apparatus according to claim 15, wherein h the first control sends a start signal to the second control, wherein the start signal includes at least one of the following pieces of information: workpiece identification number, machining type, machining data, identification of the desired electronic cam disc by the second control 202, start time and/or delay time and the like.

17. A method for the non-cycled machining of workpieces using the machining device according to claim 1, wherein the method comprises: a first step for synchronizing a movement of a machining aggregate with a feed movement of the workpiece by a first control; and a second step for positioning the machining aggregate according to a preset machining movement by a second control.

18. The method according to claim 17, further comprising: detecting the feed movement of the workpiece before machining of the workpiece starts, wherein based on the detected result the synchronization of the movement of the machining aggregate with the feed movement of the workpiece is performed by the first control.

19. The machining device according to claim 1, wherein the workpieces are plate-shaped, or wherein the first control is a CNC control, or wherein the second control comprises an electronic cam disc.

20. The machining device according to claim 4, wherein the at least 3-sided through-feed machining is a 4-sided through-feed machining or a 6-sided through-feed machining of the workpiece.

21. The machining device according to claim 6, wherein the preset machining movement corresponds to a recorded machining path.

22. The machining device according to claim 7, wherein the control for controlling the feed movement of the workpieces is identical to the first control.

23. The machining device according to claim 8, wherein the separate second control comprises an electronic cam disc.

24. The machining device according to claim 9, wherein the at least two directions is three directions.

25. The machining device according to claim 10, wherein the at least one first drive comprises a servomotor, a stepper motor or a DC motor, or wherein the at least two second drives comprise servomotors, stepper motors or DC motors.

26. The machining device according to claim 11, wherein the machining operations comprise at least one of horizontal drilling, vertical drilling, sawing, milling, coating, gluing, printing or laser machining.

27. The machining device according to claim 12, wherein the two or more machining aggregates perform one machining operation, corresponding to a same machining operation, on the workpiece.

28. The machining device according to claim 14, wherein the synchronization apparatus is configured to detect the feed movement of the workpiece before machining of the workpiece starts, is configured to transmit a detected result to the first control.

29. The control apparatus according to claim 15, wherein the workpieces are plate-shaped and consist at least in sections of wood, wood material and/or synthetic material, or wherein the first control is a CNC control, or wherein the second control comprises an electronic cam disc.

30. The method of claim 17, wherein the workpieces are plate-shaped and consist at least in sections of wood, wood material and/or synthetic material, or wherein the first control is a CNC control, or wherein the second control comprises an electronic cam disc.

Description

BRIEF DESCRIPTION OF THE FIGURES

[0039] FIG. 1 shows an example of an overlapped movement path for milling an annular groove in the through-feed process,

[0040] FIGS. 2a and 2b show a division of the superimposed movement path from FIG. 1 into a synchronization movement (FIG. 2a) and a machining movement (FIG. 2b),

[0041] FIG. 3 shows a through-feed machining device according to one embodiment of the present invention, in which several modules are machined one after the other,

[0042] FIG. 4 shows an enlarged section of the through-feed machining device shown in FIG. 3 according to one embodiment of the present invention,

[0043] FIG. 5 schematically shows the structure of a control apparatus according to one embodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0044] Preferred embodiments of the present invention are described below in detail by means of the enclosed figures. Further modifications of certain features mentioned in this context can each be combined with one another in order to form new embodiments.

[0045] FIG. 3 shows a through-feed machining device 100, when viewed from above, according to one embodiment of the present invention. The through-feed machining device 100 shown is a through-feed drilling device 100 as a specific example of a through-feed machining device.

[0046] By means of the through-feed drilling device 100 shown, workpieces W1, W2, W3 that are conveyed from the left to the right in the conveying direction RFrd. through the through-feed drilling device 100 are machined by five successive modules M1 to M5. The machining operations to be performed by modules M1 to M5 are divided, for example in terms of manufacturing technology, into module M1=construction drilling, module M2=horizontal drilling, module M3=hole-line drilling, module M4=special drilling (matrix), module M5=vertical drilling. It is clear that a different division is possible, for example according to the required machining time.

[0047] It can also be taken from FIG. 3 that three workpieces W1 to W3 are machined at the same time in the present through-feed drilling device 100. The through-feed drilling device is provided with five separate machining apparatus 110 to machine each single module M1 to M5. As can be seen in FIG. 4, which shows an enlarged section of FIG. 3, said machining devices 110 each have a shifting apparatus 120 as well as at least one machining aggregate 130. The machining aggregate 130 can comprise a tool, or a tool is insertable into a corresponding interface of the machining aggregate 130.

[0048] In the embodiment shown, the first two machining apparatus 110 machine the workpiece W3 that was last inserted into the through-feed drilling device 100, the second and third machining apparatus 110 machine the workpiece W2 that was previously inserted, and the fifth machining apparatus 110 machines the workpiece W1 which was first inserted.

[0049] Here, for example, the first machining apparatus 110 performs the construction drilling of module 1 and the second machining apparatus 110 performs the horizontal drilling of module 2. Both machining operations are carried out simultaneously on the same workpiece W3. As can be seen from the arrows WegBearb., the machining path, and thus the machining time, for executing the construction drilling (module M1) is approximately identical to the machining path (WegBearb.) for the horizontal drilling (module M2). Accordingly, the machining by the two machining apparatus 110 takes approximately the same time.

[0050] The second workpiece W2 is machined simultaneously by the third and fourth machining apparatus 110. Here, the third machining apparatus 110 performs the hole-line drilling (module M3) and the fourth machining apparatus 110 performs the special drilling (module M4). As is also schematically shown by the arrows WegBearb., the machining path (WegBearb.) of the third machining apparatus is shorter than that of the fourth machining apparatus. The third machining apparatus is accordingly shorter in use.

[0051] At the end of the through-feed drilling device 100, only the fifth machining apparatus 110 performs a machining operation on the workpiece W3 that was first inserted. The last machining apparatus 110 of the through-feed drilling device executes the vertical drilling (module M5). After that, the completely machined workpiece W is emitted from the through-feed drilling device 100 and is available for further machining by another device if necessary.

[0052] The through-feed device shown simply performs drilling operations, and it is therefore just a through-feed drilling device. However, it is also conceivable to carry out various machining operations in one through-feed device. For example, it is possible to carry out simultaneously drilling machining, milling and/or sawing machining, coating machining and the like in one through-feed device.

[0053] It should be noted, however, that the individual machining times are approximately the same so as not to unnecessarily slow down the through-feed device due to a machining operation that is erratically longer than the other machining operations. This means that if, for example, a relatively long milling contour is to be incorporated onto the workpiece W, it must be ensured that the machining speed of the machining apparatus with the milling cutter is sufficiently high to achieve a machining time equal to that of the other machining apparatus despite the long milling contour and the associated long machining path.

[0054] If this is not possible, a machining operation, for example the milling of a long milling contour, can alternatively be divided into two modules, i.e. two machining apparatus. Moreover, it is also possible, if the shifting paths so permit, to have a machining operation (milling contour) carried out using different machining aggregates 130 of one machining apparatus 110.

[0055] FIG. 5 shows a schematic structure of a control apparatus 200 according to one embodiment of the present invention. In the embodiment shown, the first control 201 is realized as a CNC control and the second control 202 as a control with a cam disc. Accordingly, the CNC control 201, which functions as master drive, sends a start signal to the second control 202 after detecting a workpiece W1-W3 to be machined. A corresponding start signal is generated by the first control 201, preferably based on the detected workpiece data of the workpiece W1-W3 to be machined, such as workpiece type, workpiece dimensions, feed speed and the like. Preferably, the start signal includes information such as machining type, machining data, identification of the desired electronic cam disk by the second control 202, start time or delay time and the like.

[0056] Accordingly, the second control 202 receives information from the start signal as to which machining operation is to be carried out by the machining aggregate 130 and which electronic cam disc stored in the second control is to be used to that end. In the embodiment shown, the second control 202 receives the start signal from the CNC control 201 to mill a circular contour. If the through-feed device is equipped with several machining apparatus 110, which successively carry out machining operations on the workpiece W1-W3, in particular different machining operations, it is preferred that the CNC control 201 simultaneously sends a start signal for a specific workpiece W1-W3 to all of the machining apparatus, i.e. to the respective second controls 202 of the machining apparatus 110. In this case, it is necessary to send a start time or delay time, together with the start signal, to the respective second control 202 to ensure that the correct workpiece W1-W3 is machined in the correct machining apparatus 110.

[0057] Alternatively, it is possible that the CNC control 201 only transmits the start signal with the necessary information to the respective machining apparatus 110 when the corresponding workpiece W1-W3 has arrived. In this case, the CNC control 201 can transmit the start signal to the second control 202 at the exact time when machining is supposed to start.