WO2015198295A1

WO2015198295A1 - Device for producing a bent part and methods for producing a bent part

Info

Publication number: WO2015198295A1
Application number: PCT/IB2015/054875
Authority: WO
Inventors: Friedemann Seibert; Lars WOIDASKY
Original assignee: Bystronic Laser Ag
Priority date: 2014-06-27
Filing date: 2015-06-29
Publication date: 2015-12-30
Also published as: WO2015198294A1

Abstract

The invention relates to a device for producing a bent part (15), comprising a bending press (21) and at least one output apparatus (38) for tool halves (23, 25) of the bending press (21) or press brake, wherein the bending press (21) has an upper jaw (22) for accommodating a first tool half (23) and a lower jaw (24) for accommodating a second tool half (25). The first tool half (23) can be moved in relation to the second tool half (25). The bending press (21) has an operator side (31) facing the operator and a press back side (32) opposite the operator side (31), which press back side is adjoined by a working space (36) of the bending press (21). A robot (41) is provided within the working space (36) of the bending press (21) and is designed to retain and position the tool halves (23, 25). The invention further relates to methods in which such a device is used.

Description

Device for producing a bent part as well

Method for producing a bent part

The invention relates to a device for producing a bent part according to the preamble of claim 1. Furthermore, the invention relates to a method for producing a bent part according to claim 10.

To produce bent parts, must be coordinated

Tool halves on the bending press or press brake are provided before the corresponding bending step is performed. Bending presses or press brakes are often also referred to as press bending presses. The bending press or press brake has a top cheek for receiving a first mold half (also called stamp) and a lower cheek for receiving a second tool half (also called die), wherein the first mold half and / or the second

Tool half for performing the bending step are movable relative to each other. The bending press or press brake further has an operator side facing the operator and one of the operator side

opposite press back, to which a working space of the

Bending press or press brake connects.

From DE19643163A1 a device for producing a bent part with a bending press or press brake is known, in which a

Dispensing device for tool halves is located immediately adjacent to the bending press or press brake. The tool halves are from the output device directly into the upper cheek and the lower cheek

pushed.

A disadvantage of the aforementioned solution is that the tool halves must be positioned and positioned exactly positioned in the dispensing device, so that a proper transfer of a tool half of the output device to the bending press or press brake can be done. In addition, the arrangement of the dispensing device at the side of the bending press or press brake increases the space requirement of the device

significantly. The object of the present invention is therefore to provide a device for producing a bent part with simple operation of the bending press or press brake and a method for producing a bent part, wherein in particular the device does not have the aforementioned disadvantages.

The object of the device is solved by the features of independent claim 1. Advantageous developments are set forth in the figures and in the dependent claims.

According to the invention, at least one robot is provided within the working space of the bending press or press brake and designed for holding and / or positioning the tool halves of the bending press or press brake.

The at least one robot is thus outside the usual

Arranged operation of the operator and the operator is thus not hindered by the at least one robot or even endangered by this. An additional separate barrier to the at least one robot is unnecessary. The at least one robot allows a variety of operations and allows the structural design of the

Bending press or press brake easy and thus to keep the production costs low.

In addition, the tool half does not necessarily have in a particular

Orientation relative to the upper beam or lower beam are provided in or out of the at least one output device. The at least one robot is aligned accordingly during positioning, so that the at least one dispensing device can be easily formed.

The at least one robot is designed for holding and / or positioning the tool halves of the bending press or press brake, so that the device is flexible in use. According to the covered by the at least one robot

Workspace can be the at least one output device for

Tool handles of the press or press brake are positioned relative to the same, whereby the device flexible to different

Assembly situations can be set up and taken into account.

Preferably, the at least one robot in the upper beam of

Bending press or press brake arranged, which allows a space-saving and simple structural design of the device. In such an arrangement, the at least one robot above the

Hinteranschiags the bending press or press brake - based on a conventional list of bending press or press brake - to lie, so that the positioning possibilities of Hinteranschiags are not limited by the at least one robot. Furthermore, the at least one robot is thus arranged within the device in a region thereof in which the operator is protected from the movements of the at least one robot and the required working space for the robot

Production of the bent part is not unnecessarily restricted.

Preferably, the at least one robot is a multi-axis robot, with which a plurality of points in the space around the bending press or press brake and in particular within the working space of the at least one robot can be reached.

Advantageously, the at least one robot is arranged movable relative to the bending press or press brake, whereby the working range of the

at least one robot is significantly increased. The at least one robot is thus movable within the workspace. At a

Bending press or press brake with a long bending line this can be completely covered if necessary only by the movable arranged robot. Alternatively, in a bending press or

Press brake a plurality of robots spaced apart within the working space, particularly advantageous at or on the upper beam provided. Preferably, the at least one robot has a gripping arm with at least one gripping device, so that removal, holding and positioning of the tool halves of the bending press or press brake can be effected simply and reliably. The at least one gripping device is designed, for example, like a pliers. Further, this may additionally or alternatively include suction or magnets to hold the tool half sucking or magnetic.

Furthermore, such a robot makes it easy to hold or position the bending part to be produced before, during and / or after the bending operation by means of the at least one gripping device of the robot.

The at least one gripping device can be mechanically, pneumatically and / or electrically actuated. For gripping a tool half, for example, mechanical, magnetic, operated with vacuum or compressed air gripping devices are used. Advantageously, an embodiment is selected which already on the bending press or

Press brake available sources of energy.

In addition or alternatively, the at least one robot has at least one abutment portion, which has a stop element for the

formed to be bent part, so that it may be possible to dispense with an additional backgauge assembly of the bending press or press brake.

Preferably, at least one dispensing device for tool halves of the bending press or press brake is provided at a distance from the press back of the press brake or press brake. The at least one robot is arranged between the bending press or press brake and the at least one output device. The at least one dispensing device limits the working space behind the bending press or press brake and serves as a bearing for different tool halves (dies and punches), which are arranged on the upper cheek or on the lower cheek depending on the bending process to be performed. The at least one robot can the at least one output device remove appropriate tool and the bending press or

Position the press brake.

Advantageously, the tool clamping for holding the tool halves on the upper cheek and / or on the lower cheek is designed such that the change of the tool halves can be done completely automatically with the help of at least one robot. Thus, the required number of manual manipulations of the operator are additionally reduced and the technical requirements for the same are lower, so that even trained auxiliary personnel can operate the device according to the invention safely. In principle, all types of tool clamps can be used, since the robot advantageously takes over all necessary manipulations. However, tool clamps are advantageous

Application that automatically open and close.

The at least one dispensing device preferably has at least one dispensing compartment for receiving and / or removing a tool half of the bending press or press brake. The tool halves are thus always provided at the same location of the at least one output device the at least one robot, which greatly simplifies the control of the same. The at least one robot grips the tool half located in the output tray and positions it on the upper cheek or lower cheek. In this case, the at least one robot only has to specify the desired position on the upper cheek or on the lower cheek of the bending press control, since the position of the output tray of the at least one dispensing device in the device is fixed. This embodiment also allows a provision of tool halves for a next bending step, even while the bending press or press brake is still working on the first bending step.

The term "output tray" is understood in this context, an input tray, as in this one no longer needed

Tool half and the at least one output device can be supplied. Are at the at least one output device more, z. B. provided two output pockets, can in these different

Tool halves are provided or recorded. For example, an output tray of the output or the reception of tool halves to be inserted into the upper cheek and the at least one further output tray of the output or the reception of tool halves to be inserted into the lower web serve.

Preferably, the at least one dispensing device has at least one service door, through which the interior of the dispensing device is accessible. By means of this service door, the at least one dispensing device can be equipped manually with tool halves, for example. This service door is advantageously provided in an area outside the working space of the bending press or press brake, whereby this is safe and easy accessible, especially during operation of the press brake or press brake for the operator.

Preferably, at least one sensor is in the at least one

Output tray for detecting the at least one output tray located or imported tool half provided.

Alternatively or additionally, at least one sensor is provided at the service door, which detects the inserted into the at least one dispensing device or removed from this mold half.

Depending on the operation of the sensor is advantageous to the

Tool halves attached an identification means which simplifies the detection of the corresponding mold half. For example, a barcode, barcode or RIFD chip is used. In addition to detecting the type of mold half, the at least one sensor can also be designed to detect the state of the same. In this case, a plurality of sensors may be provided which advantageously different

Functioning and thus have different characteristics of

Can grasp tool halves. The at least one sensor is an optical, mechanical and / or electronic sensor, this exemplary list not

is final.

Preferably, the at least one output device has a

Output device control for managing the mold halves of the press brake or press brake, which at least one

Output device the entire administration of the tool halves

takes over and the bending press control is relieved. The Biegepresse- control has only one tool request to the

Send output device control, which then halves independently provides the appropriate tool half or the corresponding tool. The dispenser controller may also be configured to notify the press brake controller which tool halves are present and / or what state the tool halves located in the at least one dispenser are.

In the inventive method according to claim 10 for producing a bent part with an aforementioned device, the tool half of the bending press or press brake is gripped by the at least one robot. Subsequently, the tool half held by the at least one robot is positioned on the upper cheek or lower cheek of the bending press or press brake. If a tool half is also to be positioned on the lower beam or the upper beam, this is likewise gripped by the at least one robot and then positioned accordingly. Now, the bending process for bending the bending part to be produced is started.

Thus, before performing the bending operation by means of the at least one robot, the corresponding tool half is positioned, which is selected according to the type of bending step to be performed. The selection is advantageously made by the bending press control and on advantageously based on a created bending plan for bending the bending part to be produced.

An incorrect assembly of the upper beam or the lower beam is largely prevented by the inventive method. In addition, the operator is on the one hand from the manual intervention for positioning the corresponding tool half on the upper cheek and / or

Sub-beam during the production of the bent part and relieved of the decision to be taken. As a result, the bending press or press brake or the device can also be operated safely by assistants who have only been trained.

Preferably, the at least one tool half of the bending press or press brake is removed from the at least one robot from the at least one dispensing device, wherein the at least one robot is moved to remove the at least one tool half to the at least one dispenser.

The tool half was, for example, due to a

Tool request of the bending press control advantageous to the

Output device control provided, whereby the risk of selecting a wrong for the subsequent bending step tool half

is significantly reduced. Due to the resulting automation of the tool half assembly, a higher cadence and thus efficiency of the device for producing a bent part can be achieved.

Before gripping the tool half of the bending press or press brake, at least one of the upper cheek and / or the

Unterwange located tool half by means of at least one

Robot taken from the same. By this process step, the operation of the bending press or press brake is further simplified.

Advantageously, the removed from the upper beam and / or lower beam mold half is positioned in the at least one output device, said positioning further advantageous means of at least one Robot takes place. By a - advantageously by the output device control - defined order position of the mold half in the at least one output device this is easy to find for reuse, allowing a largely automatic operation of the press brake or press brake.

Preferably, the tool half of the bending press or press brake is mounted chaotically in the at least one dispensing device, which enables optimal management of the dispensing device. A chaotic storage - also called dynamic storage - allows the optimization of the use of the storage area and the ways. Standardizing the storage bins will add extra

Void volume avoided. The tool halves are not stored according to a fixed internal order system, but randomly distributed and thus optimizes the routes, so that the tool halves can be quickly stored and removed.

The control of the dispenser learns to store frequently used tool halves in an area that is particularly fast to reach and thus increases the productivity of the press or press brake. Standard tool halves are thus in optimal ranges of

Output device stored. This can of course change and adapts in the time frame to the product range of the bending press or

Press brake on. Furthermore, subsequent, planned bending products of the control of the bending press or press brake can be monitored and already already required mold halves or tools can be optimally sorted.

Furthermore, tool halves can be stored for inspection, rework or rejection accordingly - and positioned near a service door of the dispenser.

The chaotic storage also allows a quick and easy access to the used tool halves. The tool halves can be stored together in one tray, do not have to be your own way can be sorted and can thus be quickly made available at the next, same bending order

Further advantages, features and details of the invention will become apparent from the following description, with reference to the

Drawings embodiments of the invention are described. The features mentioned in the claims and in the description may each be essential to the invention individually or in any desired combination.

The list of reference numerals as well as the technical content of

Claims and figures part of the disclosure. The figures are described coherently and comprehensively. Same

Reference numerals mean like components, reference numerals with

different indices indicate functionally identical or similar components.

It shows:

Fig. 1 shows an inventive device in a perspective

View,

Fig. 2 shows the device according to Fig. 1 in a perspective

Sectional view

3 is a detail section of the gripper arm of a robot,

Fig. 4, the dispensing device for tool halves of the bending press or

Press brake of the device in an enlarged,

schematic partial section, and

Fig. 5, the upper beam of the bending press or press brake of the device in an enlarged, schematic partial section.

Figures 1 to 5 show an inventive device 1 1 for producing a bent part with a bending press 21 and with a

Robot 41. Instead of a bending press 21, the device 1 1 may have a press brake, the following remarks in Associated with the bending press 21 apply mutatis mutandis to the press brake, not shown here.

The bending press 21 has a top cheek 22 for receiving a first tool half 23, also called a punch, and a lower cheek 24 for receiving a second tool half 25, also called a die on. The first tool half 23 is movable relative to the second tool half 25 in the direction of the double arrow 26. The bending press 21 has an operator side 31 facing the operator of the device 11 and a press rear side 32 lying opposite the operator side 31. At the press back 32 includes a working space 36 of the bending press 21. Spaced to the press back 32 is an output device 38 (also called tool cabinet) for tool halves 23 and 25 of the bending press 21 is provided. Next, the work space 36 by a laterally arranged control cabinet 16 and a laterally

arranged drive cabinet 17 limited. In the drive cabinet 17, a first drive for moving the upper beam 22 is provided. In the control cabinet 16, the bending press control of the device 1 1 and advantageously a second drive for moving the upper beam 22 is provided.

Between the output device 38 and the control cabinet 16, a wall element 18 is provided with access door through which the

Workspace 36 is accessible as needed for an operator. Instead of the wall element 18, a protective fence with or without access door can be provided, which further provides protection against unintentional

Penetration into the working space 36 prevented.

The device 1 1 further has an operator terminal 12 with a

Touchscreen 13 on. About the pivot arm 14, the operator terminal 12 is positionable in height as well as in the distance to the bending press 21. The operator terminal 12 is in the bending press control in

Control cabinet 16 connected via corresponding data lines. Data can be entered by the operator via the touch screen 13 and values of the device 11 can be displayed to the operator. Instead of a Touchscreen 13, the operator terminal 12, for example, a conventional screen for displaying values and z. B. have a keyboard for entering data.

The dispenser 38 has an dispenser controller for managing the tool halves 23, 25, which may be advantageously connected to or communicate with the press brake controller.

The dispensing device 38 for tool halves 23 and 25 of the bending press 21, the bending press 21 facing an output tray 39th

or a removal opening, through which a

Tool half 23 and 25 can be removed from the dispensing device 38 or inserted into this. Next, the output device 38 at its rear, d. H. on the side facing away from the bending press 21 a service door 40, through which the interior of the output device 38 is accessible to the operator, without this must go into the working space 36 of the device 1 1.

In the output tray 39 a - in this example optical - sensor 51 is provided for detecting the located in the output tray 39 tool half 23. Also in the service door 40 may be provided for detecting a supplied or removed tool half 23 at least one sensor, said sensor may be other than the sensor 51 or similar as this may be formed.

The dispenser 38 is designed, for example, as a paternoster and comprises a circulating belt 56 with individual tool half storage compartments 57. The belt 56 is moved by a motor, under the control of the dispenser control, until it is used

Tool half 23, 25 in the output tray 39 is available. The tool halves 23, 25 are stored chaotically in the output device 38. The robot 41 is provided within the working space 36 of the bending press 21 and thus between the bending press 21 and the

Output device 38 is arranged. The robot 41 is arranged on a parallel to the upper beam 22 extending support 46 at the same and along the holder 46 movable. The holder 46 is formed for example as a separate bridge or provided on such. Further, the robot 41 is a multi-axis robot for holding and / or

Positioning the tool halves 23 and 25 of the bending press 21st

is trained.

The robot 41 has a gripping arm 42 with a gripping device 44, with which a tool half 23 and 25 taken from the output device 38, held and / or can be positioned. The robot 41 may further include a stopper portion which constitutes a stopper member for the bending part to be manufactured. This stopper portion is formed in this embodiment of the gripping device 44.

In a erfindungsmässen method for producing a bent part with the device 1 1, the gripping arm 42 of the robot 41 in the direction of the output device 38 for removing at least one mold half 23 and 25, respectively. Then, the tool half 23 and 25 by means of the gripping arm 42 of the robot 41 in the output tray 39 of

Output device 38 taken. Subsequently, the tool half 23 or 25 is removed from the output tray 39 of the output device 38. Then the tool half 23 and 25 on the upper beam 22nd

or positioned on the lower cheek 24 of the bending press 21. If also a tool half 23 or 25 of the bending press 21 must be positioned on the lower beam 24 or the upper beam 22 of the bending press 21, then the above steps are repeated accordingly. Once the right tool halves 23 and 25 at the

Upper cheek 22 and are positioned on the lower beam 24, the bending part to be produced is advantageously aligned over the backgauges and now the bending process for bending the bending part to be produced is started. If the bending press 21 is already equipped with a tool half 23 and 25, which are no longer needed for the following bending process, this located on the upper beam 22 and / or on the lower beam 24 tool half 23 and 25 by means of the gripping arm 42 of the robot 41 are removed from the same and advantageously positioned in the output device 38. This process step takes place before the

Tool half 23 and 25 taken from the output device 38 and advantageously positioned on the upper beam 22 or on the lower beam 24.

Instead of a device 11 with only one robot 41, a plurality of robots may also be provided, wherein these may be different or how the robot 41 may be configured.

It is also possible with the robot 41 and other activities than just the handling of tool halves 23 and 25 of the bending press 21st

make.

For example, with the robot 41, the bent part can be held before or during the bending process, so that the operator is relieved and possibly even can be dispensed with a backgauge.

For example, in a modular backgauge arrangement, the modules thereof are also manageable by means of the robot 41.

LIST OF REFERENCE NUMBERS

1 1 Device 38 Output device 12 Operator terminal 39 Output compartment v, 38 13 Touch screen 40 Service door v. 38

14 Swivel arm 41 robots

15 bending part 42 gripping arm v. 41

16 control cabinet

17 drive cabinet 44 gripping device v. 42 18 wall element

46 bracket f. 41

21 bending press

22 upper cheek 51 sensor

23 1. tool half (punch)

24 Under-cheek 56 Tape (paternoster) 25 2. Tool half (die) 57 Tray

26 double-headed arrow

operator side

Press back

36 workspace

Claims

claims

Device for producing a bending part (15) with a bending press (21) or press brake and with at least one dispensing device (38) for tool halves (23, 25) of the bending press (21) or

Press brake, wherein the bending press (21) or press brake has a top cheek (22) for receiving a first tool half (23) and a bottom cheek (24) for receiving a second tool half (25), wherein the first tool half (23) and / or the second tool half (25) are movable relative to each other, wherein the bending press (21) or press brake an operator facing the operator side (31) and the operator side (31) opposite the press rear side (32) to which a working space (36) of

Bending press (21) or press brake connects, thereby

in that at least one robot (41) is provided within the working space (36) of the bending press (21) or press brake and is designed to hold and / or position the tool halves (23, 25) of the bending press (21) or press brake.

Apparatus according to claim 1, characterized in that the at least one robot (41) at the upper cheek (22) of the bending press (21) or press brake is arranged.

Apparatus according to claim 1 or 2, characterized in that the at least one robot (41) is a ehrachsen robot and advantageous relative to the bending press (21) or press brake,

in particular relative to the upper cheek (22) of the bending press (21) or press brake, is movable.

Device according to one of claims 1 to 3, characterized

characterized in that the at least one robot (41) comprises a gripping arm (42) with at least one gripping device (44), wherein the gripping device (44) for removing a tool half (23, 25) of the Bending press (21) or press brake from the at least one

Output device (38) and / or for holding and / or positioning a tool half (23, 25) on the bending press (21) or

Press brake is formed.

5. Device according to one of claims 1 to 4, characterized

in that the at least one dispensing device (38) is provided at a distance from the press rear side (32) of the bending press (21) or press brake and the at least one robot (41) is arranged between the press brake (21) or press brake and the at least one dispenser (38) is.

6. Device according to one of claims 1 to 5, characterized

in that the at least one dispensing device (38) has at least one dispensing compartment (39) for receiving and / or removing a tool half (23, 25) of the bending press (21) or press brake.

7. Device according to one of claims 1 to 6, characterized

characterized in that the at least one output device (38) has at least one service door (40).

8. Apparatus according to claim 6 or 7, characterized in that at least one sensor (51) in at least one output tray (39) and / or at the service door (40) for detecting a therein or inserted tool half (23, 25) is provided ,

9. Device according to one of claims 1 to 8, characterized

characterized in that the at least one output device (38) has an output device control for managing the tool halves (23, 25).

10. A method for producing a bent part with a device (1 1) according to any one of claims 1 to 9, characterized by a) gripping the tool half (23, 25) by means of the at least one robot (41); b) positioning the gripped tool half (23, 25) on the

Upper cheek (22) or on the lower cheek (24) of the bending press (21) or press brake; c) starting the bending process to bend the product to be manufactured

Bending parts (15).

1 1. A method according to claim 10, characterized in that the at least one tool half (23, 25) is removed from the at least one robot (41) from the at least one output device (38), wherein the at least one robot (41) for removing the at least one Tool half (23, 25) is moved to the at least one output device (38).

12. The method according to claim 10 or 11, characterized in that before the gripping of the tool half (23, 25) at least one on the upper beam (22) and / or on the lower beam (24) located

Tool half (23, 25) by means of the at least one robot (41) taken from the same and advantageous in the at least one

Output device (38) is positioned.

13. The method according to any one of claims 9 to 1 1, characterized

in that the tool half (23, 25) is mounted chaotically in the at least one dispensing device (38).