EP3793790A1

EP3793790A1 - Panel-machining installation, method for operating a panel-machining installation, and open-loop and/or closed-loop control device

Info

Publication number: EP3793790A1
Application number: EP19724481.7A
Authority: EP
Inventors: Stefan Weisser; Matthias Erbele
Original assignee: Homag Plattenaufteiltechnik GmbH
Current assignee: Homag Plattenaufteiltechnik GmbH
Priority date: 2018-05-16
Filing date: 2019-05-15
Publication date: 2021-03-24
Also published as: WO2019219755A1; CN112041136B; DE102018111810A1; CN112041136A

Abstract

The invention relates to a panel-machining installation which comprises a handling device for handling a flat workpiece, comprising a movable base structure that can be arranged above the workpiece and a plurality of acting portions (40) which are arranged on the base structure and can act on an upper face of the flat workpiece. It is proposed that at least one of the acting portions (40) can be moved relative to at least one other acting portion and relative to the base structure in at least one direction which is at least substantially horizontal in the operating position and that the panel-machining installation has a cleaning device (92) for the movable acting portion (40).

Description

Title: Plate processing plant, process for

Operating a plate processing plant, as well as control and / or regulating device

description

The invention relates to a plate processing plant, a method for operating a plate processing plant, and a control and / or regulating device according to the preambles of the independent claims.

A plate processing plant is known for example from DE 10 2014 225 073 Al. This is a panel sizing saw, with the large format

plate-shaped workpieces, for example for the

Furniture manufacturing in a number of smaller ones plate-shaped workpieces can be divided. The well-known plate processing plant has a

Robot with a robot arm, at the end of which

so-called suction cross is arranged. This comprises a basic structure extending in the operating position substantially in a horizontal plane, on which a plurality of downwardly extending engaging portions in the form of suction elements is arranged. These can attack on an upper side of a plate-shaped workpiece, so that this by means of the robot within the

Panel processing plant moved from one point to another place and can be raised while doing so.

DE 26 02 622 A1 also describes a

Handling device for transporting glass plates, in which a plurality of suction elements is mounted on a carriage which is along a horizontal tube

can be moved. The FR 2 564 021 Al also describes a handling device, in which a

Attack portion can be moved by means of a drive relative to a horizontal base structure. US Pat. No. 7,029,046 B2 describes a handling device with a plurality of suction elements whose position can be changed relative to one another. DE 101 57 932 B4 discloses a method for positioning substrates, in which a corner of a plate can be pressed against an alignment element by means of a suction element. In Plattenaufteilanlagen it is also known, the aufzotilende workpiece against a

Angular ruler and against so-called collets one

Feed device by means of special To press alignment and thereby align relative to a split line.

The present invention has the object to simplify the alignment and thus ultimately the machining of a plate-shaped workpiece.

The task is completed by a

Plate processing system, a method for operating a plate processing system and a control and / or regulating device with the features of the independent claims solved. Advantageous developments of the invention are in the respective dependent claims

specified. In addition, the invention features essential features in the following description and in the accompanying drawing, these features both alone and in different

Combinations may be essential to the invention, without being referred to again in detail.

According to the invention, a plate processing plant with a handling device for handling a

slab-shaped workpiece proposed that

Handling device comprising a movable and above the workpiece can be arranged base structure and a plurality of arranged on the base structure

Attack sections located at a top of the

can attack plate-shaped workpiece. Such a handling device is known in principle as a so-called "suction crossbar" from the market Handling device, the plate-shaped workpiece, for example, be stacked from a supply of material and stored on a feed table of the plate processing plant for processing. Furthermore, with such a handling device on a discharge table

lying workpiece either a further processing, an intermediate storage or for example a Abstapelplatz be supplied.

According to the invention, it is further proposed that at least one of the engaging sections be arranged in at least one in

Operating position at least substantially horizontal

Direction relative to at least one other

Attacking portion and relative to the basic structure,

preferably by means of a drive, can be moved. At least one engaging portion of the plurality of

Attacking sections thus has an additional degree of freedom of translational movement relative to the other engaging portions and to the base structure, which can be used without one

Movement of the base structure to move, for example, on a support table lying plate-shaped workpiece in a certain - normally small - extent substantially linear. In this way, the plate-shaped workpiece, for example, against a contact device, such as an angle ruler and / or a collet, moves and so in a desired manner

be positioned or aligned. This will damage the plate-shaped

Workpiece avoided because of the force with which the

plate-shaped workpiece is moved, is relatively small. Besides that is for the movement of the

Workpiece time required relatively low, which compared to previous solutions cycle time advantages can be achieved. Also, the flexibility of the

Handling device and thus the

Plate processing plant increases because both very small and very large workpieces or entire plates can be moved against the above-mentioned investment device and pressed within approximately the same alignment time. The size of the handling device and thus also the plate processing system is not

increased, and the process of alignment can be easily perceived by an operator visually and thus

be checked. Even a check by means of sensors is easy and reliable possible. For example, at the abovementioned lateral abutment and / or the aforementioned collet, a sensor,

for example, in the form of a read switch, be present. If this sensor or these sensors detect that the workpiece is on the lateral abutment

(Angle ruler) and / or the collet (or the

Collet base) is applied, can reliably from it

assume that the workpiece is correctly aligned.

In principle, the advantages according to the invention can already be achieved if only a single one of the Attack sections as a mobile attack section

is trained. In principle, however, it is also conceivable that a plurality of engagement portions is formed as a total movable group of engagement portions. This also applies to the following explanations, even if the term "attacking section" is used there in the singular.

The invention also includes that the

Plate processing system comprises a cleaning device for the movable engaging portion, wherein the

Cleaning device preferably comprises a blow-off device. This is based on the consideration that in the normal operation of the plate processing plant to a dust attack can occur, by which the movable engaging portion can be contaminated, which

in particular when designed as a suction element

Attacking section, the application of a lateral force on the workpiece by the movable engaging portion can be made difficult. By inventively provided

automatic cleaning (which automatically means that this happens by machine without the intervention of an operator) thus becomes the operability of the mobile

Secured attacking section. Such cleaning can be carried out cyclically after a certain operating time or after a certain number of alignment operations or optionally after each alignment process. It is particularly advantageous in such a plate processing system if the handling device comprises a robot by means of which the base structure can be moved. This way is a complete one

automated operation of the plate processing plant can be realized with extremely short cycle times. In particular, the handling device can be used to automatically align individual workpieces, for example on an angle ruler and / or on a collet or on a plurality of collets. Thus, an automatic mode without

additional devices can be realized.

A development of the invention

Plate processing equipment is characterized in that the movable engaging portion comprises a suction member. This is a proven and gentle on the surface

Technology, with which the movable engaging portion can be frictionally connected to a surface of a workpiece, so that the workpiece can be moved laterally in the horizontal direction.

It is also proposed that the drive of the movable engaging portion operates pneumatically, in particular comprising a pneumatic cylinder. A pneumatic drive is relatively easy to implement, very safe in operation and above all very clean. This is especially true when a pneumatic cylinder is used as the drive. It is also particularly advantageous if the movable

Attack portion in the horizontal direction in which it can be moved relative to the base structure, at least temporarily acted upon by a biasing means. In this way, the workpiece with a

defined force are pressed against this system, so as to ensure that the workpiece during a subsequent handling or

Processing continues to be in abutment with the investment device and thus remains aligned by the investment device.

If a pneumatic drive, in particular a pneumatic cylinder is used as the drive, the

Biasing device be integrated into the drive, for example as an air spring, which by the in the

Pneumatic cylinder at a defined pressure existing air volume is formed. Alternatively or additionally, the biasing device can also be realized by a mechanical spring or something similar.

In a further development, it is proposed that the force of the pretensioning device with which it pretensions the movable engaging section in the said direction is adjustable. This is very easy to implement, especially when using an air spring. For example, the force of the biasing means may be selected depending on the workpiece on which the engaging portion engages, in particular depending on a material property or a surface property of the workpiece to which the engaging portion is currently engaged. That's the way it is For example, in an engaging portion, which comprises a suction element, possible to adjust the biasing force depending on the realizable on or in the suction suppressor. This oppression may depend, for example, on the nature of the surface of the workpiece (rather smooth or rather rough) or on the nature of the material (rather dense or rather porous).

In a further advantageous embodiment of the

plate processing system according to the invention is

proposed that the movable engaging portion in two preferably mutually orthogonal horizontal

Directions can be moved by means of a drive. Although it is not absolutely necessary, but advantageous if a separate drive is provided for each of the two directions, so that the movements in the two directions can be initiated or controlled independently of each other. The mobility of the

Attacking section in two preferably to each other

orthogonal directions allows the workpiece

For example, not only on one side

Investment facility (for example, at an angle ruler), but also on the front side of a corresponding

Align investment (for example, on one or more collets) without the base structure must be rotated by 90 ° or without the basic structure itself must be moved. In principle, however, is also conceivable that the engaging portion can be moved only in one direction by means of a drive. If necessary, then the movement in one orthogonal direction to apply the workpiece in this direction to a corresponding investment device, be brought about by a movement of the base structure. Finally, it is even conceivable that the movement in both orthogonal directions by a movement of the

Base structure is effected, and that the mobility of the movable engaging portion only serves to provide a kind of spring device, by means of which the workpiece with a defined force against the

corresponding investment device is acted upon.

It is also proposed that the movable

Engaging portion can be moved by means of a drive in an at least substantially vertical direction. Normally, while the attacking section in a

Resting position at about the same height or in the same plane as the other and non-movable

Attack sections be arranged, whereas he is in one operating position on the plane of the other and not

survives movable attack sections. This has the

Advantage that the operating position in at least one horizontal direction movable engaging portion can engage the top of the workpiece without the other, non-movable engaging portions of the

Handling device the top of the workpiece

touch and thereby by the moving

Attacking portion caused movement of the workpiece obstruct. A further development of the invention provides that the movable engaging portion is rotatable about an axis vertical in the operating position. As a result, the alignment of the workpiece is facilitated, since a rotational movement of the workpiece possibly required in the alignment is not hindered by the engaging portion, or because of this rotational movement, for example when using a Saugelements, the frictional connection between the engaging portion and the top of the workpiece not is endangered. It is understood that when not only one engaging portion but a plurality of engaging portions are designed as movable engaging portions, they must be designed to achieve the just described advantage as rotatable about a common vertical axis group.

Furthermore, it is proposed that the basic structure be at least substantially in an operational position

horizontal plane extends and the movable one

Attacking portion in a lateral edge region of

Basic structure, especially in a corner of the

Basic structure is arranged. This makes it possible to frictionally connect even very small workpieces by means of the movable engaging portion with the handling device and this by a movement of the movable

Attacking section to move or align because

This prevents the basic structure from colliding with lateral areas of the installation in which it is used. A structurally simple and yet very stable

Realization of the mobility of the mobile

Attack section is that the movable

Attack portion is arranged on at least one carriage, which is held linearly movable relative to the base structure, for example by means of a commercially available linear guide.

The invention also includes a method of operating a panel processing system of the type described above, comprising the steps of: a. automatic cleaning of the movable engaging portion by a

Cleaning means; b. Placing a plate-shaped workpiece on a support table; c. Moving the

Basic structure over the plate-shaped workpiece; d.

Causing the movable engaging portion to frictionally engage an upper surface of the plate-shaped workpiece; and e. Causing the movable engaging portion to move in a horizontal direction relative to the base structure so that the plate-shaped workpiece comes into abutment with an edge on a abutment and / or causing the base structure to move in a horizontal direction so that the plate-shaped workpiece interferes with an edge on a facility comes into contact. As already mentioned above, comes as a facility, for example, a lateral

Angular ruler and / or for example a collet or a plurality of collets of a feed device in question. The inventive method leads to the same advantages as in the above-mentioned

Plate processing plant.

This is a further development of the

Method according to the invention characterized in that in step c, the base structure is moved over the plate-shaped workpiece, that the movable engaging portion

is arranged at least approximately above a center of the plate-shaped workpiece. As a result, an unwanted twisting of the workpiece is prevented during the movement due to an off-center attack of the engaging portion on the workpiece. In addition, an angular orientation of the workpiece when it comes into contact with the abutment device, facilitated.

Finally, the invention also includes a control and / or regulating device for controlling and / or regulating the operation of a handling device

Plate processing equipment which is programmed to carry out a method of the above kind.

The invention will be explained with reference to the accompanying drawings. Show it:

Figure 1 is a plan view of a

Plate processing plant with a

Handling device with a plurality of engaging portions; Figure 2 is a perspective view obliquely from above on a suction cross-section of

Handling device of Figure 1;

Figure 3 is a perspective view obliquely from above on an enlarged portion III of Figure 2, in which a movable

Attack section is present;

characters schematic representations for explaining a method for operating the

Handling device of Figures 1-3;

Figure 5 is a schematic plan view of the area

III of Figure 2 for explaining the function of the movable engaging portion of

Handling equipment;

Figure 6 is a view similar to Figure 5 with the movable engaging portion in a first extreme position;

Figure 7 is a view similar to Figure 5 with the movable engaging portion in a second extreme position;

FIG. 8 shows a representation similar to FIG. 5 at a first point in time during a FIG

Alignment operation by means of the movable engaging portion; FIG. 9 shows a representation similar to FIG. 5, at a second time during one

Alignment operation by means of the movable engaging portion;

Figure 10 is a perspective view of a

Cleaning device for the movable engaging portion; and

Figure 11 is a schematic side view of

Cleaning device of Figure 10 together with a movable engaging portion.

In the present case, it is referred to as a plate dividing saw and comprises a feed table 12 formed by a plurality of roller rails, a machine table 14 adjoining this and a removal table 16 adjoining this. A saw line 18 is in Figure 1 by a

dash-dotted line indicated. Laterally from the feed table 12, from the machine table 14 and from the removal table 16, an angle ruler 20 is arranged. A portal-like

Program slider 22 carries a plurality of collets 24, of which, for reasons of clarity, only a few are provided with a reference numeral. The program slider 22 can be moved by a motor in the direction of a double arrow 26. Side of the machine table 14 is a

Handling device 28, which comprises a robot 30 with a robot arm 32. At a projecting end of the robot arm 32, a suction cross member 34 is arranged. This comprises a generally relatively flat and substantially horizontal base structure 36. At the bottom thereof are a plurality of stationary relative to the base structure 36

Attacking portions 38 and arranged relative to the base structure in the horizontal direction movable engaging portion 40, as will be explained in more detail below. Again, for the sake of

Clarity in the figures are just a few of

Attack sections 38 by way of example with reference numerals

provided, and the engaging portions 38 and 40 are simplified in Figure 1 simplified as small circles.

All engaging portions 38 and 40 are presently designed as suction, not with one here

are shown connected negative pressure supply. As will be shown below, the

Attack sections 38, 40 at a top of a

plate-shaped workpiece 42 attack, so that this by a movement of the robot arm 32 within the

Plate processing system 10 can be moved.

In FIGS. 2 and 3, the suction cross-member 34 is shown more in detail. It can be seen that the base structure 36 is formed as a generally rectangular flat plate, which, in order to save weight, a series of mostly approximately rectangular recesses (not numbered) having. The movable engaging portion 40 is disposed at a position of the base structure 36 in which two

lateral edge regions 44 and 46 merge into one another, that is, in a corner region 48 of the base structure 36.

As indicated by double arrows 50, 52 and 54 in FIG. 3, the movable engaging portion 40 is in a first relative to the base structure 36 and also to the other non-movable engaging portions 38

horizontal direction 50, in a second horizontal direction 52 which is orthogonal to the first horizontal direction 50, and movable in the vertical direction 54. In this case, each of the directions of movement 50, 52 and 54, a corresponding drive in the form of a pneumatic cylinder 56, 58 and 60 assigned. In addition, the movable engaging portion 40 is freely rotatable about a vertical axis indicated by a dotted line 62.

The mobility of the engaging portion 40 is realized by being held on a first carriage 64 which is vertical by means of a first linear guide 66

movably attached to a second carriage 68. The second carriage 68 in turn is connected by means of a second linear guide 70 to a third carriage 72 in FIG

mounted horizontally movable, namely in the direction indicated by the double arrow 52 second horizontal direction. The third carriage 72 is in turn mounted movably in the horizontal direction by means of a third linear guide 74 on the base structure 36, namely in the indicated by the double arrow 50 first horizontal direction.

The pneumatic cylinder 60 provides the drive for the

vertical movement of the engaging portion 40. A

Cylinder housing 76 of the pneumatic cylinder 60 is attached to the second carriage 68, whereas a non-visible in Figure 3 piston rod of the pneumatic cylinder 60 is hinged to the first carriage 64. A cylinder housing 78 of the pneumatic cylinder 58 is on the third carriage 72nd

attached, whereas a piston rod 80 of the

Pneumatic cylinder 58 is hinged to the second carriage 68. A cylinder housing 82 of the pneumatic cylinder 56 is fixed to the base structure 36, whereas a piston rod of the cylinder 56 not visible in FIG. 3 is hinged to an intermediate structure 84 belonging to the third carriage 72.

The basic operating principle of

Handling device 28 and in particular of the movable engaging portion 40 will now be explained with reference to Figures 4a to 4e. In these, the suction cross-member 34, unlike shown in Figures 2 and 3,

simplified as a square, and the

Attack portions 38 are also shown differently than shown in Figures 2 and 3, evenly distributed over the surface of the square. Furthermore, that is

Angled ruler 20 simplified by a lateral vertical line with a triangle indicated. It forms, as will be immediately apparent, a lateral Equipment installation. The collets 24 are indicated by an upper horizontal line with a triangle.

They also form, as will be readily apparent, an upper abutment.

Initially, the workpiece 42 was at a desired

Place the plate processing plant 10 on a

On this example, it may be due to a so-called longitudinal division of an output workpiece. In this, the output workpiece lying on the feed table 12 is gripped by the program pusher 22 by means of the collets 24 and fed to the sawing line 18 for division. The now lying on the removal table 16 workpiece 42 is thus a by a

Longitudinal split workpiece. In principle, however, this is not mandatory, the workpiece 42 can also arrive in a different and almost any way on the one support table forming discharge table 16.

The suction cross-member 34 is positioned with its base structure 36 by means of the robot 30 so that it lies at least partially above the workpiece 42. It is then lowered onto the workpiece until the engaging portions 38 located in the area of the workpiece 42 contact the upper side of the workpiece 42. These lying in the region of the workpiece 42 engaging portions 38 are then subjected to a depression, so that they are at the top of the

Firmly clamp workpiece 42. Then, the workpiece 42 is rotated by a rotational movement of the suction cross member 34 about a vertical axis by 90 ° and back to the removal table 16 of

Plate processing system 10 placed, in the vicinity of the angle ruler 20 and in the vicinity of the collets 24. For this purpose, the program slider 22 was previously moved from the position shown in Figure 1 in the direction of the machine table 14 out. This situation is shown in FIG. 4a.

The workpiece 42 is then released by the engaging portions 38 again, and the suction crossbar 34 is lifted slightly from the workpiece 42. Now the Saugtraverse 34 is rotated relative to the robot arm 32 about a vertical axis by approximately 90 ° and positioned so that the

movable engaging portion 40 is disposed approximately above a center of the plate-shaped workpiece 42.

Then the Saugtraverse 34 from the robot 30 is something

lowered, so that the engaging portions 38 and 40 are still slightly spaced from the top of the workpiece 42.

In this stage of the process, the engaging portion 40 is moved vertically downward by driving the pneumatic cylinder 60 until it abuts against the top of the workpiece 42. Thereafter, a negative pressure is applied to the engaging portion 40, whereby it connects non-positively with the top of the workpiece 42. This condition is shown in FIG. 4b. By a control of the pneumatic cylinder 56, the engaging portion 40 is then in horizontal

Direction 50 moves to the angular ruler 20 out. As a result, the workpiece 42 comes into abutment against the angular ruler 20. It rotates about a vertical axis, which is made possible because the engaging portion 40 is freely rotatable about the vertical axis 62. This rotational movement is indicated in Figure 4c by an arrow 86.

After the workpiece 42 has been brought into abutment against the angular ruler 20, the pressure of the pneumatic cylinder 56 is not completely drained, but maintained a certain pressure in the pneumatic cylinder 56. In this way, continues to act a certain force with which the workpiece 42 is pressed against the angular ruler 20. The air volume trapped under the certain (reduced) pressure in the pneumatic cylinder 56 acts like a resilient one

Biasing device, which the engaging portion 40th

continues to be applied in the direction 50, whereby the workpiece 42 is further pressed with a certain force against the angular ruler 20.

By a subsequent control of the pneumatic cylinder 58, the engaging portion 40 is moved in the horizontal direction 52 to the collets 24. It remains due to the above-mentioned and acting in the direction 50 towards the angular ruler 20 biasing device in contact with the angular ruler 20. This results in the workpiece 42 in contact with the

Collets 24. Again, the trapped in the pneumatic cylinder 58 air volume acts as a resilient Biasing means by which the workpiece 42 is acted upon with a desired force against the collets 24, but which is sufficiently low, that

Damage to the edge of the workpiece 42 through the

Collets 24 can be prevented.

It is understood that alternatively or additionally, the engaging portion 40 and thereby the workpiece 42 can be moved by a movement of the base structure 36 by means of the robot arm 32 against a contact device, for example against the angular ruler 20 and / or the collets 24. As a result, larger movement paths can be realized, both in only one and in both horizontal directions 50 and 52. For example, the cylinder 58 and both cylinders 56 and 58 are used in this case, especially as pneumatic springs to a defined force means the engaging portion 40 on the workpiece 42 in the respective direction against the

ensprechende investment facility (angle ruler 20,

Collets 24) apply.

Now, the workpiece 42 is exactly in terms of

Collets 24 and the angular ruler 20 aligned. The collets 24 can now be closed, whereby the workpiece 42 is firmly gripped, and the workpiece 42 can be retracted to the feed table 12 by means of the program pusher 22, to be subsequently fed to the sawing line 18 of a transverse division. The basic principle of the movable engaging portion 40 of the suction cross member 34 and the orientation of the workpiece 42 on the angular ruler 20 and the collets 24 will now be explained again with reference to Figures 5-9. Unlike in Figure 3 can be seen in Figures 5-9 also hinged to the third carriage piston rod of the

Pneumatic cylinder 56, which carries the reference numeral 88, as well as the first carriage 64 hinged to the piston rod of the pneumatic cylinder 60, which carries the reference numeral 90. It also recognizes reed switch 92 to the

Cylinder housings 82 and 78, which detect the position of the respective piston rods 88 and 80th

enable. It can be seen from Figures 5-9 further in the plan view in total approximately L-shaped carriage 68 and 72. Note that not all reference numerals are entered for the sake of simplicity in Figures 6-9.

FIG. 5 shows an idle state in the case of pressureless

Pneumatic cylinders 56-60. FIG. 6 shows the piston rod 88 of the pneumatic cylinder 56 fully extended, ie the carriage 72 in an outermost direction 50

extended extreme position. FIG. 7 shows the

Piston rod 80 of the pneumatic cylinder 58 is fully extended, the carriage 68 so in an outermost in the direction 52 extended extreme position. FIG. 8 shows the workpiece 42 and the engaging portion 40 after alignment at the angular ruler 20, ie corresponding to FIG. 4c, and FIG. 9 shows the workpiece 42 and the engaging portion 40 after alignment on the collets 24, ie according to FIG. 4d. However, it should be noted that in Figures 8 and 9 for illustrative purposes of

Attacking portion 40 is not drawn centrally above the workpiece 42.

As mentioned above, the included ones act

Air volumes of the pneumatic cylinders 56 and 58 as

Biasing means, with which the workpiece 42

resilient against the angle ruler 20 or the

Collets 24 is acted upon. It is understood that it can be provided that the pressure in the air volumes of the pneumatic cylinders 56 and 58 can be adjustable, whereby a desired force can be realized with which the workpiece 42 is pressed against the angular ruler 20 and against the collets 24.

This force can be made dependent, for example, on the type of surface of the workpiece 42, by which the strength of the frictional connection between the engaging device 40 and the workpiece 42 is determined. For example, usually with a rather rough surface, only a lesser adhesion will be feasible than with a smooth surface. Also, if desired, said force may be made dependent on the nature of the material of the workpiece 42 (and / or a

Surface coating of the workpiece 42). With a porous material, a lower adhesion can be produced rather than with a gas-tight one

Material. It is also clear to the person skilled in the art that the preloading devices just mentioned need not necessarily act in both directions 50 and 52, but optionally also only in one of the two directions 50 and 52

Biasing device can be provided. Furthermore, it is understood that the biasing means can be realized in other ways than by the air volumes of the pneumatic cylinders 56 and 58, for example by mechanical springs or the like.

Referring now to Figures 10 and 11, there is an optional additional device

Plate processing system 10 shown, namely a cleaning device 92. This can be arranged at any point of the plate processing plant 10, as far as the movable engaging portion 40 by means of

Robot 30 can be moved to this point. The cleaning device 92 proposed here by way of example comprises a housing 94, which is of cuboid design. In an upper surface of the housing 94 there is an elongate and straight slot 96 which, as seen in FIG. 11, is provided with an electric fan 98

is connected, whereby a total blower is created. Alternatively, the slot 96 may also be connected via a switching valve to a separate compressed air supply, which would also provide a blow-off device. As can also be seen from FIG. 11, a brush device 100 may be present in the region of the slot 96, which in the present case is again merely exemplary on both sides of the FIG

Slot 96 is arranged. For example, after a certain operating time or after a certain number of alignment operations, the robot 30 moves the suction crossbar 34 with the movable one

Attacking section 40 to the cleaning device 92, optionally so that the movable

Attacking portion 40 rests on the top of the housing 94. This top forms so far a

Support surface 102 for the movable engaging portion 40. By the robot 30 is now the movable

Engaging portion along the arrow 104 in Figures 10 and 11 over the slot 96 with the fan 98 is moved away. By the air jet emerging from the slot 96 (arrows 106 in FIG. 11), any adhering dust may be removed from previous processing at the movable engaging portion 40. This is again supported by the breast device 100.

By means of the cleaning device 92 possible cleaning of the movable engaging portion 40 in particular of dust ensures that the movable

Attack portion 40 can sufficiently suck on the workpiece 42 to the above-described

Alignment process to perform.

It is understood that some or all of the above-described method steps can be automated. For this purpose, the plate processing system 10 has a control and regulating device, not shown, in turn, with a microprocessor and a memory Is provided. The controller is programmed to carry out the method described above.

In an embodiment not shown is the

Attacking section only in a single in

Operating position substantially horizontal direction by means of a drive relative to the base structure movable. Should it be erfoderlich, the engaging portion can be moved in such a case by a movement of the base structure in a direction orthogonal thereto, for example.

Claims

claims

1. plate processing system (10), in particular

Panel sizing saw comprising a

Handling device (28) for handling a plate-shaped workpiece (42), the

A handling device (28) comprising a base structure (36) which can be arranged above the workpiece (42) and a plurality of engagement portions (38, 40) arranged on the base structure (36) and located on an upper side of the plate-shaped workpiece (42).

can attack, characterized in that

at least one of the engaging portions (40) in

at least one horizontal direction (50, 52) relative to the base structure (36) and relative to at least one other engaging portion (38) by means of a drive (56, 58) can be moved, and that the plate processing system (10)

Cleaning device (92) for the movable

Engaging portion (40).

2. plate processing system (10) according to claim 1,

characterized in that the

Handling device (28) comprises a robot (30) by means of which the base structure (36) can be moved.

Plate processing plant (10) according to at least one of the preceding claims, characterized in that that the movable engaging portion (40) a

Includes suction.

4. plate processing system (10) according to at least one of the preceding claims, characterized in that the drive of the movable engaging portion (40) operates pneumatically, in particular one

Pneumatic cylinder (56, 58).

5. plate processing system (10) according to at least one of the preceding claims, characterized in that the movable engaging portion (40) in the

Direction (50, 52), in which it relative to at least one other engaging portion (38) and relative to the base structure (36) by means of the drive (56, 58) can be moved, at least temporarily acted upon by a biasing means.

6. plate processing system (10) according to claim 5,

characterized in that the force of

Biasing device is adjustable.

7. plate processing system (10) according to at least one of the preceding claims, characterized in that the movable engaging portion (40) in two preferably mutually orthogonal horizontal directions (50, 52) each by means of a drive (56, 58) can be moved.

8. plate processing system (10) according to at least one of the preceding claims, characterized in that the movable engaging portion (40) by means of a drive (60) in an at least substantially vertical direction (54) can be moved.

9. plate processing system (10) according to at least one of the preceding claims, characterized in that the movable engaging portion (40) is rotatable about a vertical axis in operation position (62).

10. plate processing system (10) according to at least one of the preceding claims, characterized in that the base structure (36) at least in

Substantially extends in an operating position at least substantially horizontal plane and the movable engaging portion (40) in a lateral edge region of the base structure, in particular in a corner region (48) of the base structure (36) is arranged

11. plate processing system (10) according to at least one of the preceding claims, characterized in that the movable engaging portion (40)

at least one carriage (64, 68, 72) is arranged, which is held linearly movable relative to the base structure (36).

12. plate processing system (10) according to at least one of the preceding claims, characterized in that the cleaning device (92) a

Blower (96, 98).

13. Method of operating a

Plate processing plant (10) according to one of Claims 1-12, characterized in that it comprises the following steps: a. automatic cleaning of the mobile

Attacking section (40) by a

Cleaning device (92); b. Placing a plate-shaped workpiece (28) on a support table (16); c. Moving the base structure (36) over the

plate-shaped workpiece (42); d. Causing the movable engaging portion (40) to be at an upper side of the plate-shaped one

Workpiece (40) engages force-locking; and e. Make the moving one

Engaging portion (40) relative to the base structure (36) in the horizontal direction (50, 52) moves, so that the plate-shaped workpiece (42) with an edge on a contact device (20, 24) in

Plant comes, and / or cause the base structure (36) in the horizontal direction (50, 52) moves, so that the plate-shaped workpiece (42) with an edge on a contact device (20, 24) comes into abutment.

14. The method according to claim 13, characterized in that in step c, the base structure (36) is moved over the plate-shaped workpiece (42) that the movable engaging portion (40) at least approximately is arranged above a center of the plate-shaped workpiece (42).

15. Control and / or regulating device for control

and / or regulation of the operation of a

Handling device (28) a

Plate processing plant (10), by

characterized in that they are used to carry out a

Method according to one of claims 13-14 is programmed.