DE102024104562A1 - Separation cutting process for separating a residual blank from a residual skeleton and manufacturing process - Google Patents

Abstract

The invention relates to a separating cutting method (10) for separating a residual blank (12) from a residual grid (14) of a plate blank (16), comprising the method steps:
a) determining (18) a boundary line (20) between the remaining blank (12) and the remaining grid (14) by evaluating a provided production order for manufacturing workpieces 22 and/or a current production state of the plate blank (16);
d) determining (30) a separating cut path (32) on the plate blank (16) as a function of the determined boundary line (20);
e) performing (36) the separating cut along the determined separating cut path (32), whereby the residual blank (12) is separated from the residual grid (14) of the plate blank (16).
The invention also relates to a manufacturing process (58).

Description

Background of the invention

The invention relates to a separating-cutting method for separating a residual blank from the residual skeleton of a plate blank. The invention also relates to a manufacturing method for producing workpieces using such a separating-cutting method.

Such processes are used in particular in the production of workpieces from plate-shaped blanks using a wide variety of manufacturing devices. EP 3 603 874 B1 For example, shows a laser cutting process for cutting out a machined part from a plate-shaped workpiece.

Typically, workpieces are produced from the blank in a predetermined number, size, and configuration according to an underlying production order, leaving a so-called residual skeleton. The workpiece blank is generally not fully utilized, and after completion of the production order, a significant portion of the workpiece blank remains in the production facility as an unprocessed residual blank, along with the residual skeleton. Disposing of the unprocessed residual blank leads to significant material waste, which increases production costs.

To be able to use the remaining blank in subsequent production orders and reduce material waste, the remaining skeleton surrounding the finished workpieces, which is physically connected to the remaining blank, is separated. The separation of the remaining skeleton from the remaining blank is achieved by a so-called separating or hemming cut.

The severance or hemming cut can be created during programming of the production order, but this involves additional programming effort. A pre-programmed severance cut also carries the risk of a deviation of the actual position of the workpiece blank on a production support from the pre-programmed position, for example, due to a shift in the blank. As a result, executing the severance cut can lead to damage and/or wear of the production fixture, especially the production support.

In practice, however, operators often neglect to program the cut early on, meaning the cut must be performed manually after the production order has been processed. This results in considerable time expenditure and reduces the level of automation in production. Furthermore, manual cuts are challenging to execute and can only be performed by trained operators. This further increases machine downtime.

Object of the invention

It is an object of the invention to reduce material waste and the degree of wear of the production equipment, to prevent damage to the production equipment and to increase the degree of automation in workpiece production.

Description of the invention

This object is achieved according to the invention by a separating cutting method having the features of patent claim 1. The object is also achieved by a manufacturing method having the features of patent claim 11. The subclaims represent preferred embodiments of the invention.

According to the invention, a separating cutting process is provided.

The separating cutting process is suitable and designed for separating a residual blank from a residual grid of a plate blank.

A residual blank is understood to be an unmachined section of the plate blank provided for the production of workpieces, both before and after. A residual skeleton is understood to be a machined section of the plate blank provided for the production of workpieces, both before and after. The residual skeleton typically surrounds the finished workpieces.

Separation refers to the physical separation of the machined section, or the residual skeleton, from the unmachined section, or the residual blank, the plate blank, both before and after separation. In other words, the residual blank and the residual skeleton form separate bodies after separation.

• In einem Verfahrensschritt a) des Trennschnittverfahrens ist ein Bestimmen einer Grenzlinie zwischen dem Restrohling und dem Restgitter vorgesehen. Mit anderen Worten wird eine Außenkontur des bearbeiteten Abschnitts des Plattenrohlings bestimmt.

The separating cutting process comprises at least the following process steps:

• In step a) of the separating cut process, a boundary line is determined between the remaining blank and the remaining skeleton. In other words, an outer contour of the machined section of the plate blank is determined.

According to the invention, the boundary line can be determined by evaluating a provided production order. The production order typically contains geometric information about the workpieces to be manufactured and the production position of the workpieces on the plate blank. This allows the residual skeleton or the machined section of the plate blank to be determined and delimited accordingly. For example, it can be provided that one or more envelopes of the workpieces to be manufactured are determined from the production order. An envelope, e.g. a boundary box of one or more workpieces, can enable the machined section or the residual skeleton to be determined quickly and easily. Actual machining of the plate blank can be dispensed with to determine the boundary line. This means that the separating cut process can be carried out before, after and/or during machining.

The envelope can encompass all workpieces to be manufactured. Alternatively or additionally, the envelope can encompass multiple individual envelopes, with each individual envelope encompassing a number of parts, in particular a single one, of the workpieces to be manufactured. The envelope is typically rectangular. In a special embodiment, the envelope can form a polygon.

Alternatively or additionally, the boundary line can be determined based on the current production state of the blank plate. A current production state can be determined from production information of the production device and/or from one or more images of the production area of the production device.

For example, it can be provided that the production progress at a current production point in time of the production device is determined from the production order. In other words, it can be determined which workpieces have already been manufactured. Subsequently, for example, the machined section can be determined. This allows the separating cut process to be effectively implemented even in the event of production interruptions.

Furthermore, for example, it can be provided that the production area is represented by one or more graphic images. The at least one graphic image can be evaluated by imaging algorithms to distinguish a machined section from an unmachined section of the plate blank. This allows for particularly reliable detection of any displacement and/or rotation of the plate blank.

A further method step d) of the separating cut method involves determining a separating cut path on the plate blank based on the determined boundary line. In other words, the boundary line is used to determine a tool path along which a separating cut is made by a separating tool. The separating cut path can coincide with the boundary line or run parallel to it. Alternatively or additionally, the separating cut path can be spaced from the boundary line by a minimum separating cut distance. This allows a safety margin to be created from the residual skeleton and prevents damage to previously manufactured workpieces.

The path of the separating cut is preferably adapted to the path of the envelope. In other words, the separating cut can have one or more linear and/or curved sections. The separating cut preferably has, in particular exclusively, changes in direction of less than 90°, in particular of less than 80°. This allows the speed for executing the separating cut to be maintained at a high level.

A further method step e) of the separating cut method involves performing the separating cut along the determined separating cut path. Typically, the remaining blank is separated from the remaining skeleton of the plate blank by the separating cut. The separating cut is preferably performed by a processing tool of the production device used to manufacture the workpieces. Particularly preferably, the separating cut is performed by a processing laser beam of a laser processing machine. The separating cut can be performed before the workpieces are manufactured by the production device.

Preferably, the cutting path provides for rounding the remaining blank corners created by the cutting. This can effectively prevent the risk of injury from sharp corners. Alternatively or additionally, the cutting path and/or the tool setting of the cutting tool can provide for edge rounding along the resulting cutting point. This can further reduce the risk of injury.

Preferably, the separating cut method is designed to perform the separating cut automatically. In other words, the separating cut method can be performed without operator intervention. This allows the degree of automation to be maintained at a high level. Furthermore, the separating cut method can be carried out by means of locally remote access. This enables the monitoring and control of a variety of cutting processes on different production devices from a central location.

In summary, the invention provides a severance cutting method designed to perform a severance cut taking into account the workpieces to be manufactured. This can significantly reduce material waste. By determining the remaining blank and determining a severance cut path, complex programming can be eliminated, thus eliminating the associated machine downtime.

In a preferred embodiment, the separating cut method comprises, in an additional method step c), determining a blank position of the plate blank in the production area of the production device. Typically, the actual blank position is determined in a coordinate system of the production device. The blank position can be determined, for example, from an image of the production area described previously and subsequently. The separating cut path is determined depending on the determined blank position. This makes it possible to determine a displacement and/or rotation of the plate blank and to adapt the separating cut path to the actual position of the plate blank. This can further reduce damage to the workpieces and/or a workpiece support of the production device.

In a preferred embodiment, the separating cut method comprises, in an additional method step b), providing information about support points of the workpiece support for the plate blank. The support points are typically arranged in the production area and designed for level storage of the plate blank. The information can be provided, for example, by the machine control of the production device and/or by evaluating the production order. Typically, the information about the support points comprises one or more positions of the support points in the production area. According to the embodiment, the separating cut path is determined according to method step d) depending on the information about the support points. A separating cut path is preferably determined in such a way that damage to or wear of the support points is avoided when performing the separating cut. This can prevent unscheduled maintenance work as a result of increased wear or damage to the production device.

In a preferred development of the separating cut method, the information provided includes an arrangement of the support points in a support structure. The support structure typically has an arrangement of the support points in support webs running parallel to one another. Support webs have proven particularly effective and robust for supporting plate blanks. According to the embodiment, the separating cut path is formed predominantly parallel to or crossing the support webs. Preferably, the separating cut path crosses the support webs essentially perpendicular to the path of the support webs. This can promote the lowest possible wear of the support points.

In a special embodiment, the support structure may include, in addition to the parallel support webs, additional support webs that run diagonally and/or perpendicular to the parallel support webs. In other words, the support points in the support structure are arranged in a grid-like manner.

A preferred embodiment of the separating cut method is one in which the separating cut path is determined after completion of a production order for manufacturing the workpieces from the plate blank. Completion of the production order can be understood as both the successful completion and the cancellation of the production order. This allows material waste to be kept to a minimum, even in the event of a last-minute change to the production order.

A preferred embodiment of the separating-cutting process comprises process step f), after which a residual blank identification mark is created on the residual blank. The residual blank identification mark is designed to identify the residual blank. This enables controlled and automatic sorting and/or storage of the residual blank.

In a preferred development of the separating cut method, the residual blank identifier is designed to read out residual blank information. In particular, the readable residual blank information comprises at least one residual blank dimension, for example a minimum, maximum, and/or nominal residual blank length; a minimum, maximum, and/or nominal residual blank width; and/or a minimum, maximum, and/or nominal residual blank thickness. Alternatively or additionally, the residual blank information comprises, in particular, a residual blank area, a residual blank material, and/or a residual blank date. This allows for faster and more effective selection of the residual blank for a subsequent production order.

A further preferred development of the separating-cut method is one in which the residual blank identifier is configured to read the residual blank information from a production database. In other words, the residual blank identifier is configured to indirectly read the residual blank information. The residual blank identifier can be configured, for example, as a QR code, barcode, and/or an identification number that references a database for retrieving the information stored about the residual blank. This allows the residual blank identifier to be configured in a space-saving manner, and the information content about the residual blank can be increased.

In a preferred embodiment of the separating cutting method, the separating cut is performed using a processing laser beam. The processing laser beam is typically the processing tool of a manufacturing device. The manufacturing device is typically designed as a laser processing machine. The inventors have recognized that the separating cutting method described above and below is particularly well suited for use with laser processing machines.

Further preferred is an embodiment of the separating-cutting process in which the separating-cutting process is carried out automatically. This eliminates operator intervention and maintains a high level of automation.

The underlying task is also solved by a manufacturing process.

The manufacturing method is designed for producing workpieces from a plate blank according to a production order. The workpieces are manufactured using a manufacturing device. The manufacturing device is preferably designed as a laser processing machine.

• In einem Verfahrensschritt a) des Fertigungsverfahrens ist ein Bereitstellen des Plattenrohlings in einem Fertigungsbereich der Fertigungsvorrichtung vorgesehen. Vorzugsweise erfolgt das Bereitstellen des Plattenrohlings automatisch durch eine Hebevorrichtung der Fertigungsvorrichtung. Besonders bevorzugt erfolgt das Bereitstellen des Plattenrohlings nach Ermitteln der Spezifikationen an den Plattenrohling gemäß dem Fertigungsauftrag. Der Plattenrohling kann als ein Restrohling ausgebildet sein.

The manufacturing process includes at least the following process steps:

• In a method step a) of the manufacturing process, the plate blank is provided in a production area of the manufacturing device. Preferably, the plate blank is provided automatically by a lifting device of the manufacturing device. Particularly preferably, the plate blank is provided after determining the specifications for the plate blank according to the production order. The plate blank can be designed as a residual blank.

A further process step c) of the manufacturing process provides for the production of a residual blank by carrying out a separating cutting process described previously and subsequently.

A further step d) of the manufacturing process involves sorting the production area of the manufacturing device. The remaining blank produced by the separating cut process is kept available for the production of workpieces according to a subsequent production order. Sorting the production area is typically performed using the lifting device of the manufacturing device. Sorting may include transporting the workpieces away from the production area. The remaining blank is typically stored in a depot for sheet blanks until further use. The remaining skeleton is preferably fed into a scrap container for recycling.

In a preferred embodiment, the manufacturing process comprises process step b), after which workpieces are manufactured from the production order. The workpieces are manufactured before the separating cut is created. This allows the separating cut process to be carried out taking into account the actual workpieces manufactured, ensuring minimal material waste.

Further preferred is an embodiment of the manufacturing method according to which a separating cut is performed when a residual blank area is larger than 0.5 square meters, preferably larger than 1 square meter, particularly preferably larger than 1.5 square meters. This can prevent the separation and storage of excessively small residual blanks that are unusable for subsequent production orders.

Further advantages of the invention will become apparent from the description and the drawings. Likewise, the above-mentioned and further-described features can be used individually or in combination in any desired manner. The embodiments shown and described are not intended to be exhaustive, but rather are exemplary in nature for describing the invention.

• 1 zeigt schematisch ein erfindungsgemäßes Trennschnittverfahren zum Trennen eines Restrohlings von einem Restgitter eines Plattenrohlings.
• 2 zeigt schematisch ein erfindungsgemäßes Fertigungsverfahren zum Fertigen von Werkstücken aus einem Plattenrohling.
• 3 zeigt schematisch einen Fertigungsbereich einer Fertigungsvorrichtung mit einem darin angeordneten Plattenrohling.
• 4 zeigt schematisch einen weiteren Fertigungsbereich einer Fertigungsvorrichtung mit einem darin angeordneten Plattenrohling.

Detailed description of the invention and drawing

• 1 shows schematically a separating cutting method according to the invention for separating a residual blank from a residual grid of a plate blank.
• 2 shows schematically a manufacturing method according to the invention for producing workpieces from a plate blank.
• 3 shows schematically a production area of a production device with a plate blank arranged therein.
• 4 shows schematically another production area of a production device with a plate blank arranged therein.

1 shows schematically a separating cutting method 10 according to the invention. The separating cutting method 10 is described below with reference to the 2 to 4 explained.

The separating cutting process 10 is for separating a residual blank 12 (see 3 , 4 ) from a residual grid 14 (see 3 , 4 ) of a plate blank 16 (see 3 , 4 ). Preferably, the separating cutting process 10 is carried out automatically. In other words, operator intervention to carry out the separating cutting process 10 can be dispensed with.

The separating cutting process 10 is particularly suitable for use on manufacturing devices for processing plate blanks using a processing laser beam.

• In einem Verfahrensschritt 18 des Trennschnittverfahrens 10 ist ein Bestimmen einer Grenzlinie 20 (siehe 3, 4) zwischen dem Restrohling 12 und dem Restgitter 14 vorgesehen.

The separating cutting process 10 comprises at least the following process steps:

• In a method step 18 of the separating cut method 10, a boundary line 20 is determined (see 3 , 4 ) between the remaining blank 12 and the remaining grid 14.

The boundary line 20 is typically to be understood as a demarcation between an unmachined section of the plate blank, or the residual blank 12, and a machined section of the plate blank 16, or the residual skeleton 14.

Preferably, the boundary line 20 separates the remaining blank 12 from the remaining skeleton 12 such that no undercuts and/or recesses are formed in the remaining blank 12. This makes the remaining blank 12 particularly suitable for use in further production orders.

Particularly preferably, the boundary line 20 delimits the remaining blank 12 from the remaining skeleton 14 such that the remaining blank 12 is rectangular. This can simplify further processing, in particular automatic processing, and/or storage of the remaining blank 12.

The boundary line 20 can be determined by evaluating a production order provided for the production of workpieces 22 (see 3 , 4 ) can be determined. The provided production order typically contains geometric information about the workpieces 22 to be manufactured. From the geometric information of the workpieces 22 to be manufactured, for example, an envelope 24 encompassing the workpieces 22 (see 3 , 4 ), for example a boundary box.

For a particularly fast determination of the boundary line 20, a rectangular envelope 24 can be determined. This allows a rectangular residual blank 12 to be defined particularly easily.

Alternatively, it can be provided that an envelope 24 is formed by joining several individual envelopes 26 (see 4 ) of the respective workpieces 22. This allows the highest possible material utilization of the plate blank 16 and minimizes material waste.

Alternatively or additionally, the boundary line 20 can be determined by evaluating a current production state of the plate blank 16. For example, it can be provided that an image of a production area 28 (see 3 , 4 ) is created, which has the machined plate blank 16. For example, a machined section of the plate blank 16, or a residual skeleton 14, can then be delimited from an unmachined section of the plate blank 16, or a residual blank 12, using graphical evaluation algorithms.

In a further method step 30 of the separating cut method 10, a separating cut path 32 is determined (see 3 , 4 ) on the plate blank 16 depending on the determined boundary line 20. For example, it can be provided that the separating cut path 32 is identical to the boundary line 20 or parallel to the boundary line 20 while maintaining a minimum separating cut distance 34 (see 3 , 4 ) is determined.

A further method step 36 of the separating cut method 10 provides for performing a separating cut along the determined separating cut path 32. By performing the separating cut, the remaining blank 12 is separated from the residual grid 14 of the plate blank 16.

The separating cut is preferably performed using the separating means of the manufacturing device. Particularly preferably, the separating cut is performed using a processing laser beam.

In a special embodiment of the separating cut process 10, an additional process step 38 provides for determining a blank position of the plate blank 16 in the production area 28 of the production device. In other words, the position, for example a displacement and/or rotation of the plate blank 16 in a coordinate system 40 (see 3 , 4 ) of the production area 28. This allows the blank position, or deviations in the position of the plate blank 16, to be taken into account when determining the boundary line 20 and/or the separating cut path 32. This can prevent damage to workpieces 22 during the separating cut. Furthermore, the formation of the remaining blank 12 can be carried out more precisely.

Another special embodiment of the separating cut method 10 provides, in an additional method step 42, the provision of information about support points 44 (see 3 , 4 ) a workpiece support 46 (see 3 , 4 ) for the plate blank 16. The information about the support points 44 typically includes position information and/or alignment information about the support points 44, thereby enabling a geometric determination of the support points 44 in the production area 28. Typically, the separating cut path 32 is determined depending on the information about the support points 44. For example, it can be provided that a separating cut path 32 is determined such that none of the support points 44 is located in the separating cut path 32. This can prevent damage and/or increased wear to the support points 44 when performing the separating cut.

A possible process step 48 of the separating cut process 10 can be the creation of a residual blank identification mark 50 (see 3 , 4 ) on the remaining blank 12. A remaining blank identifier 50 can be understood as a marking on the plate blank 16 by which information relating to the remaining blank 12 can be determined. The information relating to the remaining blank 12 can be read directly from the remaining blank identifier 50 and/or refer to an information source, for example, a manufacturing database.

In particular, the residual blank identifier 50 is used to read out a residual blank dimension, for example a maximum residual blank length 52 (see 3 ), a minimum remaining blank length of 54 (see 4 ), a remaining blank width of 56 (see 3 , 4 ), a residual blank thickness, and/or a residual blank area, a residual blank material and/or a residual blank date.

2 shows schematically a manufacturing process 58 for manufacturing workpieces 22 (see 3 , 4 ) from a plate blank 16 (see 3 , 4 ). The manufacturing process 58 is described below with reference to the 1 , 3 and 4 explained.

The manufacturing method 58 provides for the production of the workpieces 22 by providing a production order using a production device. Preferably, the manufacturing method 58 is carried out automatically. In other words, operator intervention for executing the manufacturing method 58 can be dispensed with.

The manufacturing method 58 is particularly suitable for use on manufacturing devices for processing plate blanks 16 by means of a processing laser beam.

• Ein Verfahrensschritt 60 des Fertigungsverfahrens 58 sieht das Bereitstellen des Plattenrohlings 16 in einem Fertigungsbereich 28 (siehe 3, 4) der Fertigungsvorrichtung vor. Typischerweise wird der Plattenrohling 16 mittels einer Hebevorrichtung (nicht gezeigt) aus einem Rohlingdepot (nicht gezeigt) gemäß den Spezifikationen des Fertigungsauftrags ausgewählt und in den Fertigungsbereich 28 überführt. Vorzugsweise erfolgt das Auswählen und/oder Bereitstellen des Plattenrohlings 16 automatisch.

The manufacturing process 58 comprises at least the following process steps:

• A process step 60 of the manufacturing process 58 provides for the provision of the plate blank 16 in a production area 28 (see 3 , 4 ) of the production device. Typically, the plate blank 16 is selected from a blank depot (not shown) by means of a lifting device (not shown) according to the specifications of the production order and transferred to the production area 28. Preferably, the selection and/or provision of the plate blank 16 takes place automatically.

In a further process step 62 of the manufacturing process 58, a residual blank 12 is produced (see 3 , 4 ) by carrying out a previously and subsequently described separating cut procedure 10 (see 1 ).

A further method step 64 of the manufacturing process 58 provides for sorting the production area 28 of the manufacturing device. Typically, the residual blank 12 produced by the separating-cutting process 10 is stored in the blank depot for the subsequent production of additional workpieces 22 according to a further production order. Sorting can be understood as the partial or complete removal of workpieces 22 and/or a residual skeleton 14 and/or the residual blank 12 from the production area 28.

The manufacturing process 58 may include a process step 66 that provides for the production of workpieces 22 from the production order. Typically, the production of the workpieces 22 takes place before the production of the remaining blank 12 and the sorting of the production area 28.

In a special version of the manufacturing process 58, the separating cutting process 10 only carried out if a residual blank area of the residual blank 12 is larger than 0.5 square meters, preferably larger than 1 square meter, particularly preferably larger than 1.5 square meters.

3 shows a schematic view of a production area 28 of a production device with a plate blank 16 arranged therein.

As shown, the plate blank 16 is positioned on a workpiece support 46 within a coordinate system 40. According to a production order, workpieces 22 can be manufactured from the plate blank 16. Typically, the manufactured workpieces 22 remain on the workpiece support 46 after production, separated from the resulting residual skeleton 14 and the remaining blank 14.

Alternatively or additionally, the previously described separation cutting method 10 (see 1 ) and/or the manufacturing process 58 described above and below (see 2 ) provide that the determination of the separating cut path 32 (see 3 , 4 ) before the workpieces 22 are manufactured.

As shown, the envelope 24 can be determined for the workpieces 22. The envelope 24 can, as shown, be designed as a boundary box.

As shown, a separating cut path 32 is defined with a separating cut distance 34 from the envelope 24. This prevents damage to the workpieces 22 when performing the separating cut.

The separating cut path 32 can also provide for rounding of the remaining blank corners 67. This can prevent the sharp edges of the remaining blank corners 67 and thus a potential risk of injury.

The remaining blank 12 has a remaining blank identifier 50. The remaining blank identifier 50 can, for example, be designed as a QR code and refer to the remaining blank dimensions of the remaining blank 12. For example, by evaluating the remaining blank identifier 50, the remaining blank length 52 and/or the remaining blank width 56 can be read out.

According to 3 The workpiece support 46 has a plurality of support points 44. The support points 44 are arranged in a support structure 68 with a plurality of support webs 70 formed parallel to one another.

By providing the position of the support points 44 or the support structure 68, a separating cut path 32 can be determined such that a separating cut is performed between two parallel support webs 70. In other words, the support points 44 are not damaged or worn during the separating cut. This can avoid repair and maintenance costs.

4 shows a schematic view of a further production area 28 of a production device with a plate blank 16 arranged therein.

The workpiece support 46 has according to 4 a plurality of support points 44. The support points 44 are arranged in the support structure 68 with a plurality of support webs 70 that are parallel to one another and intersect one another. In other words, the support structure 68 has a grid consisting of support webs 70 that run longitudinally and transversely to the production area.

As shown, the envelope 24 can be formed from individual envelopes 26. This allows for a high degree of material utilization for the production of the remaining blank 12.

The separating cut path 32 can be curved to minimize the residual skeleton 14 and the associated material waste. Typically, the separating cut path 32 is determined while maintaining the separating cut distance 34 from the envelope 24 or from the respective individual envelope 26.

Preferably, the separating cut path 32 is formed predominantly parallel or intersecting to the support webs. This can prevent unnecessary wear on the support points 44.

The separating cut path 32 particularly preferably has angle changes of less than 90 degrees, particularly preferably less than 85 degrees. This ensures a particularly rapid execution of the separating cut.

List of reference symbols

10

Cutting path;

12

remaining blank;

14

residual skeleton;

16

plate blank;

18

process step;

20

boundary line;

22

Workpiece;

24

Enveloping;

26

single envelope;

28

manufacturing area;

30

process step;

32

Cutting path;

34

Cutting distance;

36

process step;

38

process step;

40

coordinate system;

42

process step;

44

support point;

46

Workpiece support;

48

process step;

50

Remaining blank marking;

52

maximum remaining blank length;

54

minimum remaining blank length;

56

Remaining blank width;

58

manufacturing processes;

60

process step;

62

process step;

64

process step;

66

process step;

67

Remaining blank corner;

68

support structure;

70

Support bridge.

QUOTES CONTAINED IN THE DESCRIPTION

This list of documents submitted by the applicant was generated automatically and is included solely for the convenience of the reader. This list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• EP 3 603 874 B1 [0002]

Claims (13)

A separating cut method (10) for separating a residual blank (12) from a residual skeleton (14) of a plate blank (16), comprising the method steps: a) determining (18) a boundary line (20) between the residual blank (12) and the residual skeleton (14) by evaluating a provided production order for manufacturing workpieces 22 and/or a current production state of the plate blank (16); d) determining (30) a separating cut path (32) on the plate blank (16) depending on the determined boundary line (20); e) performing (36) the separating cut along the determined separating cut path (32), whereby the residual blank (12) is separated from the residual skeleton (14) of the plate blank (16). Separation cutting process (10) according to Claim 1 , comprising the additional method step: c) determining (42) a blank position of the plate blank (16) in a production area (28) of the production device; wherein the separating cut path (32) is determined as a function of the determined blank position. Separation cutting process (10) according to Claim 1 or 2 , comprising the additional method step: b) providing (38) information about support points (44) of a workpiece support (46) for the plate blank (16); wherein the separating cut path (32) is determined as a function of the information about the support points (44). Separating cut method (10) according to one of the preceding claims, wherein the information provided is provided via an arrangement of the support points (44) in a support structure (68) with support webs (70) running parallel to one another; wherein a separating cut path (32) is formed predominantly parallel or crossing to the support webs (70). Separating cut method (10) according to one of the preceding claims, wherein the separating cut course (32) is determined after completion of a production order for manufacturing the workpieces (22) from the plate blank (16). Separating cutting method (10) according to one of the preceding claims, comprising the method step: f) creating (48) a residual blank identification mark (50) on the residual blank (16). Separation cutting process (10) according to Claim 6 , wherein the residual blank identifier (50) is designed to read out residual blank information, in particular a residual blank dimension, a residual blank area, a residual blank material and/or a residual blank date. Separation cutting process (10) according to Claim 7 , wherein the remaining blank identifier (50) is designed to read the remaining blank information from a manufacturing database. Separating cutting method (10) according to one of the preceding claims, wherein the separating cut is carried out by means of a processing laser beam. Separating cutting method (10) according to one of the preceding claims, wherein the separating cutting method (10) is carried out automatically. A manufacturing method (58) for manufacturing workpieces (22) from a plate blank (16) according to a manufacturing order using a manufacturing device, in particular a laser processing machine, comprising the method steps: a) providing (60) the plate blank (16) in a manufacturing area (28) of the manufacturing device; c) producing (62) a residual blank (12) by performing a separating-cutting process (10) according to one of the preceding claims; d) sorting (64) the manufacturing area (28) of the manufacturing device, wherein the residual blank (12) is kept available for manufacturing workpieces (22) according to a further manufacturing order. Manufacturing processes (58) according to Claim 10 , comprising the method step: b) manufacturing (66) the workpieces (22) from the production order; wherein method step b) is carried out before method step c). Manufacturing process (58) according to one of the Claims 11 or 12 , wherein process step c) is carried out when a residual blank area is larger than 0.5 square meters, preferably larger than 1 square meter, particularly preferably larger than 1.5 square meters.