EP3338906A1 - Bending tool for a bending press - Google Patents

Abstract

The invention relates to a bending tool (1, 11), in particular a bending tool, for a bending press (20), comprising a molding section (2) for shaping a workpiece and a guide section (3) for moving the bending tool (1) along a guide (18). , In order to be able to pull a plurality of bending tools simultaneously into or out of a bending press or a bending tool store, the bending tool (1) has at least one coupling device (4) for coupling the bending tool (1) to an adjacent bending tool (11, 1) ,

Description

The invention also relates to a bending press and / or a bending tool storage, a method for coupling and / or decoupling of at least two adjacent bending tools, along a guide Form series, and a method for simultaneously moving at least two, held in a tool holder bending tools.

In the context of bending presses, the loading of bending tools or the replacement of bending tools and the storage of bending tools outside the press brake in a separate bending memory is a hitherto unsolved problem, because the transporting of bending tools, even if this takes place along a trained as a leadership tool holder, is very complex and time consuming, resulting in long cycle times.

While (for example during the loading process) the simultaneous pushing of several bending tools along an elongate tool holder by means of a transport means no difficulties, the bending tools from the bending press must be removed individually, since the previously known transport devices can be coupled only to a bending tool. The coupled bending tool is then pulled out of the bending press. The steps, approaching the transport device, coupling to the bending tool and pulling out of the bending tool, must be carried out separately for each bending tool. This is a complex and time-consuming procedure. Another disadvantage is that in a (connected to the bending press) bending tool storage, which also acts as a feeder, complex maneuvering maneuvers are required to store the individually transported bending tools. It should be noted that the transport device often uses the same rail, in which the bending tools are used, as a guide and therefore this is to be kept free before each loading or removal process.

The object of the invention is to eliminate these disadvantages and to provide a method which allows a simultaneous displacement of at least two bending tools by pulling by means of a transport device. The effort in loading or removal of bending tools should be significantly reduced. The (pulling out) the bending tools should be designed to save time compared to known solutions.

This object is achieved with a bending tool mentioned above in that the bending tool has at least one coupling device for coupling the bending tool to an adjacent bending tool.

The inventive measure bending tools can be coupled together. The transport device is coupled to the first bending tool of the series and can now pull the entire composite of coupled bending tools (from the bending press). The tensile force is transmitted via the coupling device from one bending tool to the other. The ability to pull multiple bending tools in a composite, the loading or unloading process can be significantly shortened.

The coupling device (s) is / are preferably located at the end face (s) of the bending tool, i. on the side which defines the bending tool in the guide direction defined by the guide section.

The bending tool may have in the region of one of its end faces an active, i. actuated, coupling device and in the region of the other end side have a passive coupling device. In two abutting bending tools, the active coupling device of a bending tool cooperates with the passive coupling device of the other bending tool. Alternatively, the bending tools can have active coupling devices on both end faces.

In a preferred embodiment, the coupling device is operable between a coupling state and a released state. As a result, abutting bending tools can be selectively coupled or decoupled in each case with their front side. The operation Such an active coupling device can be made from outside the bending tool (eg manually or preferably by an automatic actuating device) or by an actuator provided in the interior of the bending tool.

In a preferred embodiment, the coupling device is a mechanical coupling device, in particular for producing a non-positive and / or positive connection with an adjacent bending tool. A mechanical coupling device is particularly reliable, in particular, the coupling state (coupling position) can be designed in a simple manner such that the coupling reliably holds during transport.

In alternative embodiments, the coupling device may be formed as a magnetic, in particular electromagnetic, coupling or as a suction coupling (for example by means of a vacuum-actuated suction cup).

The coupling device preferably has an actuating element accessible from outside the bending tool, by means of which the coupling device can be actuated, wherein preferably the actuating element is formed by a pin-shaped or key-shaped element which can be moved into the bending tool or from the bending tool. The actuator provides the interface to the coupling device. It allows actuation by an external (i.e., external to the bending tool) actuator.

Another preferred embodiment is characterized in that the actuating element is movable transversely to the guide direction defined by the guide section of the bending tool and / or that the actuating element is arranged in a wall of the bending tool which is parallel to the guide direction defined by the guide section. This measure allows a simple operation within the bending press or the bending tool memory from a space which is not provided for the transport of the bending tools. The clearance of the guide or the tools transported therein must therefore not be claimed.

A preferred embodiment is characterized in that the coupling device comprises a spring, preferably a spiral spring, a leaf spring or a gas spring, by which the coupling device is acted upon in the direction of coupling state. This results in an automatic coupling of adjacent or abutting tools (i.e., no separate operation is required for the coupling). Here, an actuation is required only for decoupling.

A preferred embodiment is characterized in that the coupling device is self-locking in the coupling state and / or in the released state. The individual states are characterized by high reliability, i. Inadvertent skipping from one state to another is effectively avoided. The Selbstarretierung can be realized according to the ballpoint pen principle, i. two stable states that can be converted into each other by overcoming an (actuating) resistor.

A preferred embodiment is characterized in that the coupling device is an automatic coupling device, in particular a latching coupling. In this embodiment, abutting two bending tools automatically causes coupling, e.g. a (passive) coupling device of a tool is locked by an (active) coupling device of the other tool or engages in the (active) coupling device of the other tool.

Preferably, when the coupling device is a preferably parallel to the guide portion defined by the guide portion of the bending guide recess, in particular bore, and a Verriegelungsme-mechanism, preferably in the form of a transverse pin, for locking a protruding into the recess connecting element, preferably a pin, a includes adjacent bending tool. This represents a particularly simple, space-saving and reliable connection possibility of two tools.

A preferred embodiment is characterized in that the bending tool in the region of one of its end faces an operable coupling device, preferably in the form a latching mechanism housed in a recess of the bending tool, and in the region of the other end face a passive coupling device, preferably in the form of a projection, in particular a pin or Hackens.

A preferred embodiment is characterized in that the coupling device is at least partially, preferably predominantly, formed in the interior of the bending tool. As a result, the outer contour of the bending tool is hardly affected, while the coupling device is best protected against external influences.

A preferred embodiment is characterized in that the Biegewerkezug has a cooperating with the coupling device actuator through which the coupling device is actuated, wherein the actuator is preferably arranged in the interior of the bending tool. Here, the bending tool itself takes over the operation and is thus functionally independent.

A preferred embodiment is characterized in that the bending tool has an energy store connected to the actuator, in particular a battery, and / or that the actuator can be controlled remotely, preferably via a wireless interface.

The object is also achieved by a bending press or bending tool storage with at least one tool holder, which forms a guide, preferably a guide rail having an inner profile, and at least one bending tool displaceable along the guide according to the present invention.

The bending tool storage device can have a multiplicity of guides, in particular in the form of guide rails, in order to store bending tools in the smallest space. The bending tool storage can also be designed as a feed device for a bending press and a transport device for transporting the bending tools along the guide (s) include.

A preferred embodiment is characterized by an actuating device which is movable relative to the guide and adapted to the coupling device of a Bending tool from outside the bending tool to press. The actuating device can be designed as an arm, finger or other manipulation element and interact with an actuating element of the coupling device. After the actuation process (eg actuator presses the actuator of the coupling device), the actuator retracts again. The (subsequent) bending process is not disturbed by the actuator. Preferably, therefore, the actuator is transversely to the guide direction, which is defined by the guide or the guide portion of the bending tool, movable.

A preferred embodiment is characterized in that the bending press has at least one movable stop, in particular a back stop, for positioning a workpiece within the bending press and a control device for moving the stop, wherein the control device is adapted, by a movement of the stop, the coupling device to actuate the at least one bending tool.

The actuation of the coupling device of a bending tool is realized in this preferred embodiment with little effort, since the actuation actuator in the form of bending presses (rear) bill is already present. The (rear) stop (s) are transversely to the guide direction, which is defined by the leadership of the tool holder of the press brake, movable and serve to position the workpiece within the press brake. Preferably, the (rear) stop (s) are also movable along the guide direction, so that a stop (successively) can reach a plurality of bending tools arranged in a row.

The object is also achieved by a method for coupling and / or decoupling at least two adjacent bending tools according to the present invention, which form a row along a guide, wherein the coupling device of at least one of the bending tools is actuated for coupling and / or decoupling of the bending tools.

A preferred embodiment is characterized in that the actuation of the coupling device by at least one, relative to the guide movable actuator of a bending press or a bending tool storage and / or by at least one movable stop for positioning a workpiece within the bending press, in particular a backgauge takes place.

The object is also achieved by a method for simultaneously displacing at least two bending tools held in a tool holder of a bending press or a bending tool storage by means of a transport device, wherein the tool holder forms a guide and the at least two bending tools form a row along the guide,

• in einem Schritt (a) zumindest zwei benachbarte Biegewerkzeuge gemäß einem erfindungsgemäßen Kopplungs-Verfahren miteinander gekoppelt werden,
• in einem Schritt (b) die Transporteinrichtung an eines der Biegewerkzeuge angekoppelt wird und
• in einem Schritt (c) der Verbund aus aneinandergekoppelten Biegewerk-zeugen durch die Transporteinrichtung entlang der Führung verschoben wird.

in particular a method for feeding a bending press with bending tools and / or for removing bending tools from a bending press and / or for moving bending tools in a bending tool memory (25) or within a bending tool memory, wherein

• in a step (a) at least two adjacent bending tools are coupled together according to a coupling method according to the invention,
• in a step (b) the transport device is coupled to one of the bending tools, and
• in a step (c) the composite of coupled Biegewerk witnesses is moved by the transport device along the guide.

Step (a) can be carried out before, during or after step (b).

A preferred embodiment is characterized in that the transport device comprises a guided in the leadership of the tool holder shuttle, in particular in the form of a carriage or carriage, and that on the shuttle, the coupling is designed for coupling to a bending tool.

A preferred embodiment is characterized in that the transport device comprises an elongated, preferably flexible tensile and / or pressure transmission means, in particular a belt, a rope, a rod or a chain, and that the shuttle to the train and / or pressure transmission means is connected. By using a tension and / or pressure transmission means, the travel drive of the transport device can be arranged far away from the tool holders of the bending press. The transport device can thereby also be designed low-weight and space-saving. In an alternative variant, the shuttle could also be self-propelled, with the travel drive being arranged in or on the shuttle. The control of the shuttle could then be wired, but also by radio.

A preferred embodiment is characterized in that the transport device is guided in the same guide in which the bending tools are held.

A preferred embodiment is characterized in that prior to step (b) the transport device is moved in a first direction along the guide to the first bending tool of the series, in step (b) the transport device is coupled to the first bending tool of the series and in Step (c) the transport device is moved with the composite of mutually coupled bending tools in the direction opposite to the first direction. The method of the transport device in the opposite direction to the first direction means that the bending tools are pulled by the transport device. In this case, the first bending tool is coupled to the transport device, whereby the other bending tools of the series due to the activated coupling device (s) -. the coupling device (s) are in the coupling state and connect adjacent bending tools with each other - forced to be pulled along. The inventive measure several bending tools can be pulled simultaneously. The invention goes hand in hand with a reduction of the (shifting) effort and with a significant saving of time.

A preferred embodiment is characterized in that in a step (d) the bending tools displaced in a composite are decoupled from one another after the step (c) by actuation of the coupling device of one or more bending tools. This can for example be done in the bending memory, where the individual bending tools can be sorted according to their properties.

For a better understanding of the invention, this will be explained in more detail with reference to the following figures.

Fig. 1

zwei aneinandergekoppelte Biegewerkzeuge gemäß Erfindung;

Fig. 2

ein Biegewerkzeug im Schnitt durch die Kupplungseinrichtung;

Fig. 3

eine Biegepresse in schematischer Darstellung mit Ober- und Unterwerkzeug;

Fig. 4

ein Biegewerkzeug mit integriertem Aktuator für die Kupplungseinrichtung;

Fig. 5

ein Biegewerkzeug mit elektromagnetischer Kupplungseinrichtung;

Fig. 6

aneinandergekoppelte Biegewerkzeuge mit einer Transfereinrichtung;

Fig. 7

eine Biegepresse in fluchtender Ausrichtung mit einem Biegewerkzeugspeicher.

In each case, in a highly simplified, schematic representation:

Fig. 1

two mutually coupled bending tools according to the invention;

Fig. 2

a bending tool in section through the coupling device;

Fig. 3

a bending press in a schematic representation with upper and lower tool;

Fig. 4

a bending tool with integrated actuator for the coupling device;

Fig. 5

a bending tool with electromagnetic clutch device;

Fig. 6

coupled bending tools with a transfer device;

Fig. 7

a bending press in alignment with a bending tool storage.

By way of introduction, it should be noted that in the differently described embodiments, the same parts are provided with the same reference numerals or the same component names, wherein the disclosures contained in the entire description can be mutatis mutandis to the same parts with the same reference numerals or component names. Also, the location information chosen in the description, such as top, bottom, side, etc. related to the immediately described and illustrated figure and these position information in a change in position mutatis mutandis to transfer to the new location.

The embodiments show possible embodiments, it being noted at this point that the invention is not limited to the specifically illustrated embodiments thereof, but also various combinations of the individual embodiments are mutually possible and this variation possibility due to the teaching of technical action by representational invention in Can the expert working in this technical field.

The scope of protection is determined by the claims. However, the description and drawings are to be considered to interpret the claims. Individual features or combinations of features from the illustrated and described different embodiments may represent for themselves inventive solutions. The task underlying the independent inventive solutions can be taken from the description.

For the sake of order, it should finally be pointed out that the devices for a better understanding of the construction elements, in particular the coupling device, have been shown partially unevenly and / or enlarged and / or reduced in size.

Fig. 1 shows bending tools 1, 11 for a bending press 20, each having a mold section 2 for forming a workpiece and a guide section 3 for moving the bending tool 1 along a guide 18. The adjacent or abutting with their end faces bending tools 1, 11 form in the guide direction 13 a Line. Out Fig. 1 It can be seen that the bending tools 1, 11 are coupled to each other by means of a coupling device 4, ie they form a composite in which the bending tools - as long as the coupling device is activated, ie in the coupled state - can only be moved together.

In the illustrated embodiment, the bending tools 1, 11 - on one of their end faces - each have an operable (ie active) coupling device 4. This is in the form of a in a recess 7 of the bending tool 1, 11 accommodated locking mechanism 8 is formed ( Fig. 2 ). The active coupling device 4 of a bending tool 1 interacts with a passive coupling device 14, which here in the form of a pin, which has a recess or notch together.

The clutch device 4 is operable between a coupling state and a released state. In the in Fig. 2 1, a transverse bolt of the locking mechanism 8 or of the (active) coupling device 4 of the bending tool 1 locks the journal of the (passive) coupling device 14 of the adjacent bending tool 11.

In Fig. 2 - as well as in the Fig. 3 illustrated application example of a bending press 20 - can be seen that the coupling device 4 has an accessible from outside the bending tool 1 actuating element 5 through which the coupling device 4 is actuated having. In the concrete embodiment, the actuating element 5 is formed by a movable in or out of the bending tool 1 pin-shaped or button-shaped element. In the embodiment of the Fig. 2 the transverse bolt is also the actuating element at the same time.

The actuating element 5 (or in this case the transverse pin) is movable transversely to the guide direction 13 defined by the guide section 3 of the bending tool 1, 11. The actuating element 5 is arranged in a wall of the bending tool 1, 11, which is substantially parallel to the guide direction 13, and can therefore - as in Fig. 3 to be seen - operated from the back.

It is preferred if - as in Fig. 2 shown purely schematically - the coupling device according to the ballpoint pen principle is actuated. The coupling device 4 is then preferably self-locking in the coupling state and in the released state, whereby the coupling device is secured against unintentional transition from one state to the other.

The coupling device 4 off Fig. 2 also has a spring 6 (here: a coil spring), through which the coupling device 4 is acted upon in the direction of the coupling state or the dissolved state.

In an alternative embodiment, the clutch device 4 could also be an automatic clutch device, in particular a latch clutch. Once the peg-shaped (passive) coupling device 14 of a bending tool 11 is retracted into the (active) coupling device 4 of the other bending tool 1, an automatic latching action can be triggered. Only to release the clutch device 4 would then be an active operation required.

As can be seen from the figures, the coupling device 4 is formed at least partially, preferably predominantly, in the interior of the bending tool 1, 11.

Fig. 4 shows a variant in which the Biegewerkezug 1 cooperating with the coupling device 4, preferably in the interior of the bending tool 1, 11 arranged actuator 10 (eg in the form of a step or linear motor), through which the coupling device 4 is actuated. The bending tool 1 may also have an energy store 12 connected to the actuator 10, in particular a battery. Also, the actuator 10, in particular via a wireless interface 15, be remotely controllable.

While the Fig. 1 . 2 and 4 show a mechanical coupling device 4, which may be formed for the production of a non-positive and / or positive connection with an adjacent bending tool 11, 1, moreover, shows Fig. 5 an electromagnetic clutch device 4, which can be coupled by means of energy storage (in particular a battery) and a switch as an actuator to an adjacent bending tool 11. The adjacent bending tool 11 may in this area a slightly magnetizable material (in Fig. 5 indicated as a rectangle) in order to optimize the coupling force. Alternatively, the adjacent bending tool 11 could also have an (active) electromagnetic clutch in this area.

Fig. 3 shows a bending press 20 and Fig. 7 In addition, it also has a bending tool store 25 connected to the bending press. These each have tool holders 19, which form a guide 18, preferably a guide rail having an inner profile. In the tool holder 19 and in the guide 18 - along the guide 18 displaceable - bending tools 1, 11 are used.

The coupling device 4 of a bending tool 1, 11 can now be actuated by an (external) actuating device 17 which, for example, is movable relative to the guide 18, ie be switched between the coupling state and the released state (as in FIG Fig. 7 Schematically indicated in connection with the bending tool memory 25).

Within the bending press 20, one or more workpiece stops 16 can be used for actuating the coupling device as an alternative to a separately provided actuating device. Such movable stops 16 serve to position a workpiece within the bending press 20 and are present in bending presses anyway. In particular, backgauges are widely used in bending presses and are suitable because of their controllable mobility transversely to the guide direction 3 for actuating an actuating element 5 of the coupling device 4 (see Fig. 3 ). A control device 21 is provided for moving the stop 16 in order to actuate the coupling device 4 of the bending tool 1 by a movement of the stop 16.

In a method according to the invention for coupling and / or decoupling at least two adjacent bending tools 1, 11, which form a row along a guide 18 ( Fig. 6 and 7 ) is just for coupling and / or decoupling of the bending tools 1, 11, the coupling means 4 at least one of the bending tools 1, 11 is actuated. This can, as already mentioned, be achieved by at least one (separate) actuating device 17 of a bending press 20 or a bending tool store 25 that is movable relative to the guide 18 and / or by at least one movable stop 16 which otherwise serves to position a workpiece within the bending press 20 Backgauge, done.

This allows the simultaneous displacement of at least two bending tools 1, 11 held in a tool holder 19 of a bending press 20 or a bending tool storage 25 in a row by means of a transporting device 22. The transporting device 22 comprises in the embodiments of FIGS Fig. 6 and 7 a shuttle 23, which is guided in the guide 18 of the tool holder 19, an elongated tension / pressure transmission means 24 and a (not designated) positioning drive.

The transport device 22 can be used for loading a bending press 20 with bending tools 1, 11 and / or for removing bending tools 1, 11 from a bending press 20 and / or for displacing bending tools 1, 11 into a bending tool store 25 or within a bending tool store 25.

In a step (a), at least two adjacent bending tools 1, 11 are coupled together by means of the coupling device 4,

In a step (b), the transport device 22 is coupled to one of the bending tools 1, 11 (FIG. Fig. 6 ).

In a step (c), the composite of mutually coupled bending tools 1, 11 is displaced by the transport device 22 along the guide double arrow in Fig. 6 ).

In this case, before the step (b), the transport device 22 can be approached in a first direction along the guide 18 to the first bending tool 1 of the series ( Fig. 6 ), in step (b) the transport device 22 are coupled to the first bending tool 1 of the series and in step (c) the transport device 22 is moved with the composite of mutually coupled bending tools 1, 11 in the direction opposite to the first direction. This means that simultaneous pulling of several tools is made possible by the invention.

After the shifting operation, in a step (d), the bending tools 1, 11 displaced in a composite can be decoupled from one another after the step (c) by actuation of the coupling device 4 of one or more bending tools 1, 11.

As in Fig. 7 indicated principle of the invention can be applied to both top and bottom tools. The bending tool memory may have a plurality of tool holders, including guides. These may run radially parallel to each other or, for example, in a circular or ring memory. The actuator (s) 17 may be configured to cover all possible tool positions.

REFERENCE NUMBERS

1

bending tool

2

mold section

3

guide section

4

coupling device

5

jig

6

feather

7

recess

8th

locking mechanism

9

connecting member

10

actuator

11

bending tool

12

energy storage

13

guide direction

14

coupling device

15

wireless interface

16

attack

17

actuator

18

guide

19

tool holder

20

bending press

21

control device

22

transport means

23

shuttle

24

Push / pull transmission means

25

Bending tool storage

Claims (20)

Bending tool (1, 11), in particular bending tool, for a bending press (20), comprising a mold section (2) for forming a workpiece and a guide section (3) for moving the bending tool (1) along a guide (18), characterized that the bending tool (1) has at least one coupling means (4) for coupling of the bending tool (1) to an adjacent bending tool (11, 1). Bending tool according to claim 1, characterized in that the coupling device (4) between a coupling state and a released state is actuated. Bending tool according to claim 1 or 2, characterized in that the coupling device (4) is a mechanical coupling device, in particular for producing a frictional and / or positive connection with an adjacent bending tool (11, 1) is formed. Bending tool according to one of the preceding claims, characterized in that the coupling device (4) from an outside of the bending tool (1) accessible actuating element (5) through which the coupling device (4) is actuated, wherein preferably the actuating element (5) an in the bending tool (1, 11) or from the bending tool (1, 11) movable pin-shaped or button-shaped element is formed. Bending tool according to one of the preceding claims, characterized in that the actuating element (5) transversely to the by the guide portion (3) of the bending tool (1, 11) defined guide direction (13) is movable and / or that the actuating element (5) in a Wall of the bending tool (1, 11), which is substantially parallel to the by the guide portion (3) defined guide direction (13) is arranged. Bending tool according to one of the preceding claims, characterized in that the coupling device (4) is a spring (6), preferably a spiral spring, a Leaf spring or a gas spring, by which the coupling device (4) is acted upon in the coupling state. Bending tool according to one of the preceding claims, characterized in that the coupling device (4) is self-locking in the coupling state and / or in the released state. Bending tool according to one of the preceding claims, characterized in that the coupling device (4) is an automatic coupling device, in particular a latching coupling. Bending tool according to one of the preceding claims, characterized in that the coupling device (4) has a preferably parallel to the guide section (3) of the bending tool (1, 11) defined guide direction (13) extending recess (7), in particular bore, and a Locking mechanism (8), preferably in the form of a transverse pin, for locking a in the recess (7) projecting connecting element (9), preferably a pin, an adjacent bending tool (11, 1). Bending tool according to one of the preceding claims, characterized in that the bending tool (1, 11) in the region of one of its end faces an actuatable coupling device (4), preferably in the form of a in a recess (7) of the bending tool (1, 11) accommodated locking mechanism ( 8), and in the region of the other end face a passive coupling device (14), preferably in the form of a projection, in particular a pin or Hackens. Bending tool according to one of the preceding claims, characterized in that the coupling device (4) at least partially, preferably predominantly, in the interior of the bending tool (1, 11) is formed. Bending tool according to one of the preceding claims, characterized in that the Biegewerkezug (1, 11) cooperating with the coupling means (4), preferably in the interior of the bending tool (1, 11) arranged actuator (10), by means of which the coupling device (4) can be actuated, the bending tool (1, 11) preferably having an energy store (12), in particular a battery, connected to the actuator (10) and / or the actuator (10) , in particular via a wireless interface (15), remotely controllable. Bending press (20) and / or bending tool storage (25) with at least one tool holder (19), which forms a guide (18), preferably a guide rail having an inner profile, and at least one bending tool (1, 11) displaceable along the guide (18) ), characterized in that the at least one bending tool (1, 11) is designed according to one of the preceding claims. Bending press and / or bending tool storage according to claim 13, characterized by an actuating device (17) which is movable relative to the guide (18) and adapted to the coupling device (4) of a bending tool (1, 11) from outside the bending tool (1, 11). Bending press according to claim 13 or 14, characterized in that the bending press (20) at least one movable stop (16) for positioning a workpiece within the bending press (20), in particular a backgauge, and a control device (21) for moving the stop (16 ), wherein the control device (21) is adapted to actuate by a movement of the stop (16), the coupling means (4) of the at least one bending tool (1, 11). Method for coupling and / or decoupling at least two adjacent bending tools (1, 11) forming a row along a guide (18), characterized in that the bending tools (1, 11) are designed according to one of claims 1 to 12 and in that the coupling device (4) of at least one of the bending tools (1, 11) is actuated for coupling and / or decoupling the bending tools (1, 11). A method according to claim 16, characterized in that the actuation of the coupling device (4) by at least one, relative to the guide (18) movable actuator (17) of a bending press (20) or a bending tool memory (25) and / or by at least one movable stop (16) for positioning a Workpiece within the bending press (20), in particular a backgauge takes place. Method for simultaneously displacing at least two bending tools (1, 11) held in a tool holder of a bending press (20) or a bending tool store (25) by means of a transport device (22), wherein the tool holder (19) forms a guide (18) and the at least two bending tools (1, 11) along the guide (18) form a row,
in particular a method for feeding a bending press (20) with bending tools (1, 11) and / or for removing bending tools (1, 11) from a bending press (20) and / or for moving bending tools (1, 11) into a bending tool storage (25) or within a bending tool memory (25), characterized in that
the bending tools (1, 11) are designed according to one of the preceding claims and that in a step (a) at least two adjacent bending tools (1, 11) are coupled together according to a method according to claim 16 or 17, - In a step (b) the transport device (22) is coupled to one of the bending tools (1, 11) and - In a step (c) of the composite of mutually coupled bending tools (1, 11) by the transport device (22) along the guide is moved. A method according to claim 18, characterized in that prior to step (b) the transport device (22) is moved in a first direction along the guide (18) to the first bending tool (1) of the series, in step (b) the transport device ( 22) is coupled to the first bending tool (1) of the series and in step (c) the transport device (22) is moved with the composite of mutually coupled bending tools (1, 11) in the opposite direction to the first direction. Method according to one of claims 18 to 19, characterized in that in a step (d) the bent-off bending tools (1, 11) after step (c) by actuation of the coupling device (4) of one or more bending tools (1, 11) are decoupled from each other.

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