WO2021250143A1 - Procédé de fonctionnement d'un système d'usinage de pièce, et système d'usinage de pièce - Google Patents

Procédé de fonctionnement d'un système d'usinage de pièce, et système d'usinage de pièce Download PDF

Info

Publication number
WO2021250143A1
WO2021250143A1 PCT/EP2021/065554 EP2021065554W WO2021250143A1 WO 2021250143 A1 WO2021250143 A1 WO 2021250143A1 EP 2021065554 W EP2021065554 W EP 2021065554W WO 2021250143 A1 WO2021250143 A1 WO 2021250143A1
Authority
WO
WIPO (PCT)
Prior art keywords
tool
workpiece
test
variable
machining
Prior art date
Application number
PCT/EP2021/065554
Other languages
German (de)
English (en)
Inventor
Jonathan KAISER
Patrick ROLLER
Sergey Martynenko
Sven Wirth
Original Assignee
Homag Plattenaufteiltechnik Gmbh
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Homag Plattenaufteiltechnik Gmbh filed Critical Homag Plattenaufteiltechnik Gmbh
Priority to EP21733083.6A priority Critical patent/EP4165478A1/fr
Publication of WO2021250143A1 publication Critical patent/WO2021250143A1/fr

Links

Classifications

    • GPHYSICS
    • G05CONTROLLING; REGULATING
    • G05BCONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B19/00Programme-control systems
    • G05B19/02Programme-control systems electric
    • G05B19/18Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form
    • G05B19/406Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by monitoring or safety
    • GPHYSICS
    • G05CONTROLLING; REGULATING
    • G05BCONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B19/00Programme-control systems
    • G05B19/02Programme-control systems electric
    • G05B19/18Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form
    • G05B19/406Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by monitoring or safety
    • G05B19/4065Monitoring tool breakage, life or condition
    • GPHYSICS
    • G05CONTROLLING; REGULATING
    • G05BCONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B2219/00Program-control systems
    • G05B2219/30Nc systems
    • G05B2219/36Nc in input of data, input key till input tape
    • G05B2219/36291Cutting, machining conditions by empirical equation, like tool life
    • GPHYSICS
    • G05CONTROLLING; REGULATING
    • G05BCONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B2219/00Program-control systems
    • G05B2219/30Nc systems
    • G05B2219/37Measurements
    • G05B2219/37346Cutting, chip quality
    • GPHYSICS
    • G05CONTROLLING; REGULATING
    • G05BCONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B2219/00Program-control systems
    • G05B2219/30Nc systems
    • G05B2219/45Nc applications
    • G05B2219/45234Thin flat workpiece, sheet metal machining

Definitions

  • the invention relates to a method for operating a workpiece processing system, as well as a workpiece processing system according to the preambles of the independent claims.
  • DE 102017 103 867 A1 discloses a method for operating a machine tool in which a process variable, for example a Feed rate, a quality variable resulting from the machining process on the workpiece, for example an optical quality, a variable that characterizes the workpiece used, for example a material, and a time variable of the tool, for example a previous operating time, can be linked to form a data record.
  • a process variable for example a Feed rate
  • a quality variable resulting from the machining process on the workpiece for example an optical quality
  • a variable that characterizes the workpiece used for example a material
  • a time variable of the tool for example a previous operating time
  • the object of the present invention is to create a method and a device which the flexibility in the operation of a
  • test processing operations are carried out at specific times.
  • point in time is not to be understood in the mathematical sense of the word “point”, but rather encompasses a certain time range during which the majority of test processing operations are carried out.
  • the test machining operations carried out at a certain point in time differ with regard to the values of the process variable. If, for example, four test machining operations are carried out at a certain point in time, the first test machining operation with a first value of the process variable, the second test machining operation with a second value of the process variable, the third test machining operation with a third value of the process variable and the fourth test machining operation carried out with a fourth value of the process variable.
  • the second alternative of the method according to the invention is also about obtaining a large number of data records of the above type at the end. While this is also done by performing test editing operations, it is done in a slightly different manner. Instead of carrying out a plurality of test processing operations at a specific point in time, preferably only a single test processing operation is carried out at a point in time. This is repeated at different times, preferably always with the same value of the process variable. This means that for the first tool of a certain tool type, only one data record with a certain process variable is obtained at any one time.
  • a single test machining process is preferably carried out in a later test machining operation with a second tool of the same tool type at different times, but this time with one Value of the process variable that is different from the value of the Process variable in the test machining operations with the first tool.
  • Processing operations must be interrupted shorter, if at all, than in the first variant, since preferably only a single test processing operation is carried out at a specific point in time. However, it takes longer overall until the desired large number of data records is available. This is only the case when a plurality of tools of a specific, identical tool type have carried out test machining operations at different times.
  • Both variants of the method according to the invention are used in particular to operate a panel dividing saw for dividing large-format panel-shaped workpieces (starting workpieces).
  • Such workpieces are used, for example, as starting workpieces for the production of furniture parts. It is not only possible to split up individual workpieces, but also entire stacks of workpieces. The ones that are used
  • Panel sizing saws can include, for example, a stationary feed table with a program slide for positioning an initial workpiece relative to a sawing line or cutting line, a saw arranged on a saw carriage with a pressure bar arranged above, and a removal table.
  • the first variant is a method in which variables are recorded or determined by means of devices. These devices can include different sensors and / or computing devices that determine the respective variables or, for example, keep them ready on the basis of inputs by a user or specifications by a process planning system. As mentioned, the variables are linked to one another in a data record and stored in a memory of a control and regulating device.
  • a plurality of test machining processes is generated at a time or during a time range and stored in the memory Test machining process resulting quality variable of the workpiece, a variable that characterizes the workpiece used in the test machining process, and a time variable of the tool link with one another, the test machining operations carried out at a point in time differing with regard to the values of the process variable.
  • Workpiece processing system through at least one test Machining process at least one data set is generated and stored in the memory, which contains at least one process variable of the test machining process, a quality variable of the workpiece resulting from the test machining process, a variable that is used in the test
  • Machining process characterizes the workpiece used, and a time variable of the tool is linked to one another, wherein in the test machining operations with the first tool, a process variable with a first value and in the test machining operations with the second tool, the same process variable is used with a second value, wherein the first value differs from the second value.
  • at least one test machining process is carried out in a normal operating sequence through the production of normal workpieces using a normal flow chart. This has the advantage that the normal operational sequence is basically not disturbed at all and only little additional time, if any, has to be spent on creating the data records.
  • test machining operations carried out at one point in time differ in the values of the process variable can result in quality variables that are no longer acceptable, as a result of which rejects are produced that have to be reproduced.
  • at least one test machining process is carried out on a normal
  • Initial workpiece is carried out by producing a scrap piece by means of a modified flow chart.
  • a flow chart ("cutting plan") is usually created by a process controller on the basis of the number and sizes of the workpieces to be produced and the sizes of the available starting workpieces a workpiece is produced with a quality size that is insufficient.
  • the normal starting workpiece is exchanged for a special test workpiece and the test machining process is carried out by machining this test workpiece.
  • This preferably takes place at a predetermined point in time when the tool is used and has particular advantages when it comes to determining data records in the case of still unknown active pairs, that is to say very specific combinations of workpiece, tool and process variable.
  • This further development is particularly suitable for the first-mentioned variant of the method according to the invention.
  • the process variable is at least one from the group: tooth feed, saw blade protrusion, cutting speed.
  • a toothed feed is used as a tooth feed Tool, for example a milling cutter, a drill or a saw blade, usually understood as the quotient of the feed rate and the product of the number of teeth and the speed of the tool.
  • a saw blade protrusion naturally only occurs on a saw blade and indicates how far the saw blade protrudes over the workpiece to be sawed during the sawing process, i.e. how far it emerges from the workpiece.
  • the cutting speed denotes the
  • the quality parameter is at least one from the group: waviness of a cut edge, number of outliers on a cut edge, size of outliers on a cut edge.
  • variable that characterizes the workpiece is at least one from the group: material type, thickness, density, coating, number of workpieces in a workpiece stack. These are also particularly relevant and meaningful features for the characterization of a workpiece when machining plate-shaped workpieces.
  • time value of the tool is at least one from the group: feed path, machined volume, tool life.
  • the feed path denotes the total distance that a tool has covered in its relative movement relative to the workpieces it has machined up to the point in time under consideration.
  • machined volume refers to the entire volume of material that a tool has converted into chips, dust, or the like when machining workpieces up to the point in time under consideration.
  • the tool life which is sometimes also referred to as the cutting path, describes the entire distance that a cutting edge of a tool has covered in the workpiece material during machining up to the point in time under consideration.
  • the time parameters mentioned are particularly meaningful in the case of cutting tools, for example milling cutters, drills and saws.
  • a particularly preferred data record links the tooth feed rate as a process variable, the number and size of the outliers as a quality variable, as a variable that characterizes the workpiece, material type and thickness, and as a time variable, the tool life.
  • a variable that characterizes tool wear is also automatically recorded or determined.
  • “Automatically” in this case means that, for example, a sensor is provided that detects a corresponding variable and, for example, so forwards to a processing device that this variable can be stored together with the other variables in the above-mentioned data set.
  • the informative value of the data records can be further improved by recording tool wear directly.
  • tool wear includes a current tool condition, with the wear being able to be determined by a comparison with an earlier established condition.
  • variable that characterizes the tool wear is at least one from the group: vibrations of a drive shaft of the tool, cutting edge rounding, the radiation power.
  • the "vibrations of a drive shaft" of a rotating tool and / or vibrations of the tool itself can be detected particularly easily by appropriate vibration sensors.
  • a vibration sensor could for example be arranged on a saw carriage. that is, for example, by means of a camera.
  • the data record generated by a test machining process additionally includes a tool parameter, the tool parameter preferably being at least one from the group: geometry, type, and preferably also one of these derivable tool data, for example a cutting edge geometry, a number of teeth, a tool width, or the like. This further improves the informative value of the data sets mentioned.
  • At least one characteristic field is automatically created from the data records generated by means of the test processing operations. It goes without saying that, due to the possible large number of sizes of a data record, this can be a multi-dimensional map. Such a multi-dimensional map can be used in later
  • Machining processes can be determined very precisely which process variables lead to a desired quality feature on the workpiece for the current workpiece and the current tool status. Or vice versa: with a given desired quality feature, the value of the process variable can be preset very precisely, so the tool can be "maxed out” in the best possible way in terms of service life.
  • the invention also includes a workpiece processing system, in particular a panel dividing saw for dividing large-format panel-shaped workpieces, which comprises a control and regulating device with a processor and a memory, which is designed to carry out a method according to one of the preceding claims.
  • a workpiece processing system in particular a panel dividing saw for dividing large-format panel-shaped workpieces, which comprises a control and regulating device with a processor and a memory, which is designed to carry out a method according to one of the preceding claims.
  • Figure 1 is a plan view of a
  • FIG. 2 shows a sectional plan of a large-format plate-shaped workpiece
  • Figure 3 is a flow chart of a first variant of a
  • FIG. 4 shows a time line of a first possible variant of a sub-area of the method from FIG. 3
  • FIG. 5 shows a time line of a second possible variant of a sub-area of the method from FIG. 3;
  • FIG. 6 shows a flow diagram of a first possible option for carrying out test processing operations
  • FIG. 7 shows a flow chart of a second possible option for carrying out test processing operations
  • FIG. 8 shows a flow diagram of a third possible option for carrying out test processing operations
  • FIG. 9 shows a flow chart to explain the
  • FIG. 10 shows a flow chart to explain the use of the characteristic maps determined.
  • a workpiece processing system bears the overall reference numeral 10.
  • the workpiece processing system 10 shown here is, for example, a panel dividing saw.
  • the Large-format starting workpieces for example, divided into strip-shaped intermediate products by means of longitudinal cuts. These are then divided into end products or intermediate products by means of cross-sections, which are then divided up again, for example by means of third cuts and possibly further cuts.
  • the workpiece processing system 10 comprises a feed table 12, which can be implemented, for example, by a plurality of parallel roller rails. Workpieces present on the feed table 12 can be moved to a machine table 18 by means of a program slide 14 and collets 16 present on it. This has a saw gap 20 in its upper side. Below the saw gap 20, a sawing device 22 is arranged, for example, on a saw carriage (not visible), which in the present case consists of a scoring saw 24 and a main saw 26, for example. Above the saw gap 20 there is a pressure bar, not shown, with which workpieces can be clamped between the pressure bar and the machine table 18 during the division by the sawing device 22. The machine table 18 is followed by three segments of a removal table 28. This is usually designed as an air cushion table, as is the machine table 18.
  • the workpiece processing system 10 also includes a control and regulating device 30, the signals from a
  • a control and regulating device 30 the signals from a
  • the sensors and other detection devices 32 and 34 can be arranged at numerous different points of the workpiece processing system 10, and they can be designed differently, for example in the form of light barriers, cameras with image recognition technology, etc.
  • the control and regulation device 30 performs numerous functions of the Workpiece processing system 10 controlled, for example the program slide 14, the collets 16, the pressure bar and the sawing device 22.
  • computer programs are stored in several memories of the control and regulating device 30, which enable semi-automatic or possibly even fully automatic operation of the workpiece processing system 10.
  • the control and regulating device 30 preferably has several microprocessors and interfaces for inputting and outputting data and information.
  • FIG. 2 shows a dividing plan of an initial workpiece 36, which is also referred to as a cutting plan.
  • the aim is to divide the starting workpiece 36 shown into finished workpieces by means of the sawing device 22 by means of a large number of machining operations, which can then be used, for example, in the manufacture of furniture parts.
  • starting workpiece 36 can be, for example, a chipboard that is on both sides with a Coating is provided.
  • many other materials and surface types are also conceivable.
  • strip-shaped workpieces 39 are produced by means of longitudinal cuts 38.
  • test machining processes are carried out at different times. These are used to receive certain data that are linked to data records. Characteristic maps are created from the data sets, and with these characteristic maps the workpiece processing system 10 is controlled in future operations ("processes") in such a way that the capacity of the tool used, in this case the sawing device 22, is optimally used without falling below a specified quality.
  • machining processes are carried out in a block 46, in the case of the workpiece machining system 10 shown as an example, that is, normal longitudinal cuts 38, cross-cuts 40 and 40 Third cuts 42, for example, on the initial workpiece 36 and / or the resulting strip-shaped workpieces 39, etc ..
  • the control and regulating device 30 specifies certain process variables, and the sawing device 22 is controlled accordingly. For example, the speed at which the saw carriage has long been moving to the saw gap 20 and the speeds of the scoring saw 24 and the main saw 26 are set so that a sufficient quality of the cutting edges produced by the sawing device 22 is obtained.
  • a time variable t of the tool in the present case for example the saw blade of the main saw 26, is continuously recorded or determined.
  • the time value can be one of the following group: feed path, machined volume, tool life.
  • the tool life is particularly preferred in the case of a panel dividing saw. It denotes the distance that a cutting edge of the saw blade of the main saw 26 has covered in the workpiece material during machining up to the point in time under consideration.
  • Test machining operations are performed at certain times during the life of the tool. These points in time are specified and are reached, for example, if, since the last point in time, a a certain interval of the time has elapsed, so for example the tool has covered a certain tool life. This interval of the time variable is also referred to below as the "wear interval".
  • the point in time for a test machining process is simply a specific point in time on a day or in a week, or the wear interval is simply the expiry of a specific one Defined operating time of the tool.
  • point in time is not to be understood in the narrow mathematical sense of the definition “point”. Rather, this is always a discrete time range with a beginning and an end that is different from this and that is sufficiently long to be able to carry out the specified or desired number of test processing operations.
  • the test machining operations T are carried out with very specific process variables.
  • the process variables can be at least one from the group: tooth feed, saw blade protrusion, cutting speed. Especially In the present case, preference is given to using the process variables tooth feed Z and saw blade protrusion S.
  • test machining operations T carried out at a point in time differ with regard to the values of the process variables Z and S.
  • the following test machining operations T are therefore carried out at a point in time:
  • test processing operations T (Z1, S1) to T (Z4, S3) would be carried out at one point in time.
  • Qnm, resulting from the test machining process T (Zn, Sm), of the separating edge generated during the dividing process is determined in a block 52, for example using one of the sensors 32 and 34.
  • a quality parameter one of the group comes into question in particular: waviness, number of outliers, size of outliers. The number of outliers is particularly preferred here.
  • “Outliers” are understood to mean small breakouts on the separating edge produced by the main saw 26 or the scoring saw, which could be disruptive, especially if the initial workpiece 36 has a coated surface.
  • variable V which characterizes tool wear
  • the variable that characterizes tool wear can be at least one from the group: vibrations of a drive shaft and / or a tool, cutting edge rounding, cutting performance or machining performance.
  • Corresponding sensors 32 and 34 can also be used for this purpose, for example vibration sensors arranged on a tool trolley of the sawing device 22 and / or a camera directed at the tool and / or a device for recording cutting performance or machining performance.
  • control and regulating device 30 can provide a tool parameter W in block 52, which characterizes the tool used in the test machining operation T.
  • the tool parameter can, for example, be at least one from the group: geometry, type.
  • the control and regulating device 30 is also aware of variables M which characterize the initial workpiece 36 and which can be at least one from the following group: material type, thickness, density, coating (yes / no, type). These are provided in a block 54.
  • control and regulating device 30 After each test machining process T (Zn, Sm), the control and regulating device 30 generates a data record in block 56 D (t, n, m), which links all available and above-mentioned variables with one another.
  • a data record therefore contains the following values in total:
  • test machining operations are carried out with one type of tool (size W), so that at the end a large number of data records D (t, n, m) generated at different times are obtained. These are processed in a block 58 to form a multi-dimensional characteristic diagram or to form a plurality of three-dimensional characteristic diagrams which are connected to one another. These can be used in future machining processes to pre-control the workpiece machining system, as will be shown in greater detail below. For example, with a known material M and a known time variable t and a known tool W, it is then possible to set the process variables Z and S in such a way that a desired quality Q is just achieved on the manufactured workpiece.
  • test processing operations carried out at a point in time differ with regard to the values of the process variable (s). This is shown in FIG. Man recognizes there a time axis for the time variable t and at a total of three times t1, t2 and t3 four small circles 50a, 50b, 50c and 50d each for a test machining process.
  • the test processing operations 50a-d differ in terms of the process variable (s) used in each case.
  • a tool W1-W4 of the same tool type when used, preferably only a single test machining operation is carried out at certain times.
  • a process variable with a first value is used, and in the test machining operations 50b-d with the second, third and fourth tool W2-4, the same process variable is used, but with a second, third and fourth values used.
  • test machining operations There are also the following three options for carrying out the test machining operations:
  • a test machining operation it is possible for a test machining operation to be carried out in a normal operating sequence by producing a normal workpiece using a normal flow chart. Due to the variation in the value of the process variable between the individual test machining operations, however, it is no longer possible in this case to produce a workpiece with one acceptable quality. In this case, this workpiece must be marked as scrap, and the schedule must be changed in such a way that the workpiece is produced at a later point in time.
  • a corresponding sequence is shown in FIG. 6: after a test processing operation 50, the quality variable determined is compared with a limit value in a block 60. If the comparison shows that the manufactured workpiece does not meet the quality requirements, the manufactured workpiece is declared as scrap in a block 62, and the flow chart is changed in block 62 such that the workpiece declared as scrap is reproduced at a later point in time. Otherwise the method continues in block 64.
  • At least one test machining operation is carried out on a normal starting workpiece by producing a scrap piece by means of a modified flow chart.
  • completely normal machining processes are initially carried out in block 46.
  • block 48 it is checked whether the wear interval has been reached. If the answer is “yes”, the current cutting plan or sequence plan is modified in a block 66, so that the test machining operations can now be carried out in a block 50.
  • the normal starting workpiece 36 is used for at least one test machining operation is exchanged for a special test workpiece, and the test machining process is carried out by machining this test workpiece.
  • the current starting workpiece is replaced by a special test workpiece in a block 68, and the test machining operations are then carried out in block 50. If these are completed, the special test workpiece is again replaced by the current initial workpiece in a block 70, so that the normal division of the initial workpiece 36 can be continued.
  • the production planning takes place in a block 72, so the cutting plan according to FIG. 2, among other things, is created in this block. This is preferably done automatically, specifying the finished workpieces to be produced and the available starting workpieces in such a way that as little waste as possible is produced and as few dividing processes as possible have to be carried out.
  • the block 46 corresponds to the function block already mentioned above in connection with FIGS. 3, 7 and 8. He stands for the implementation of the normal
  • Production process i.e. normal machining processes of the initial workpiece, for example by means of cross-sections, longitudinal cuts and possibly also third cuts or further cuts. Also the following one
  • Decision block 48 has already been made in connection with the Figures 3, 7 and 8 mentioned. It stands for checking whether the wear interval, also defined above, has been reached. If the answer is "yes”, test processing operations are carried out in the following block 50, specifically using different values for at least one process variable. The same values for the process variables are also used again in the test processing operations at subsequent times, i.e. after others have expired This is indicated in block 74.
  • a block 76 it is queried whether a service life limit of the tool used has been reached. This would be the case if the recorded or determined quality variable after a test machining process has a value such that it can be assumed that the tool used is completely worn out and can therefore no longer be used. If the answer in block 76 is “no”, there is a return to function block 46, so the normal production process is continued Tool are now finished, and this is also reported back to the production process.
  • a transformation of the parameter characteristics is carried out in a subsequent function block 80.
  • This is understood to mean that the data records generated are fed into the already existing characteristic maps, as a result of which these are supplemented and / or adapted.
  • This is indicated in function block 82.
  • characteristic fields in which, for example, with an optimal saw blade protrusion SÜ, the maximum tooth feed fz is plotted depending on the tool condition and the cutting quality, or in which, with a maximum tooth feed fz, the optimal saw blade protrusion SÜ is plotted again depending on the tool condition and the cut quality.
  • function block 72 for production planning and a function block 46 for carrying out normal machining processes, in the case of the workpiece machining system 10 shown here as an example, in the form of cross-sections, longitudinal cuts, third cuts, etc. the above-mentioned target quality size on the finished workpieces.
  • This is fed into a function block 86 where, on the basis of the target quality variable from block 84, the optimal process variables for achieving it are defined, for example a maximum tooth feed taking into account the current tool status.
  • the production process in function block 46 is based on the process variables defined in function block 86 are carried out.
  • a random check of the cutting quality is carried out on the workpieces produced. At least one of the quality variables mentioned above is therefore recorded or determined. This can be done, for example, by means of imaging methods.
  • the current state on the tool in this case the saw blade of the main saw 26, that is to say the
  • Tool wear determined. This can take place directly, for example, by detecting a rounded cutting edge, or it can be done indirectly, for example, by detecting vibrations of a drive shaft of the saw blade of the main saw 26.
  • the function blocks 88 and 90 thus provide information on actual current actual values, both of the quality variable and the variable that characterizes tool wear / tool condition.
  • the values ascertained in the function blocks 88 and 90 are processed, in particular, in a function block 92.
  • This is done by adapting the existing process models, i.e. the existing data sets / maps, on the basis of the actual values determined.
  • a weighted averaging can be used for this purpose.
  • a new value is formed by forming an average value from the value present in the process model and the newly recorded actual value, with the existing value is weighted with a first factor and the newly recorded actual value is weighted with a second factor.
  • the value already present in the process model can be weighted with a factor of 0.8, whereas the newly recorded actual value is weighted with a factor of 0.2.
  • the maps can be adapted in function block 82 already known from FIG. 9, and these adapted maps are then used in function block 86 for the selection of the optimal process variables.

Landscapes

  • Engineering & Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Numerical Control (AREA)

Abstract

L'invention concerne un procédé d'actionnement d'un système d'usinage de pièce (10), dans lequel des variables sont détectées ou déterminées au moyen de dispositifs (32, 34), reliés l'un à l'autre dans un ensemble de données et stockés dans une mémoire d'un dispositif de commande à boucle ouverte et à boucle fermée (30). Selon l'invention, à certains moments au cours de l'utilisation d'un outil (26) du système d'usinage de pièce (10), une pluralité d'ensembles de données est produite au moyen d'une pluralité de processus d'usinage test à chaque fois, ladite pluralité d'ensembles de données étant stockée dans la mémoire, et lesdits ensembles de données reliant au moins une variable de processus de l'opération d'usinage test, une variable de qualité de la pièce usinée (41), ladite variable de qualité résultant du processus d'usinage test, une variable caractérisant la pièce utilisée dans le processus d'usinage test, et une variable de temps de l'outil (26). Les processus d'usinage test mis en œuvre à un moment diffèrent par rapport aux valeurs de la variable de processus.
PCT/EP2021/065554 2020-06-10 2021-06-10 Procédé de fonctionnement d'un système d'usinage de pièce, et système d'usinage de pièce WO2021250143A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP21733083.6A EP4165478A1 (fr) 2020-06-10 2021-06-10 Procédé de fonctionnement d'un système d'usinage de pièce, et système d'usinage de pièce

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102020115462.3 2020-06-10
DE102020115462.3A DE102020115462A1 (de) 2020-06-10 2020-06-10 Verfahren zum Betreiben einer Werkstückbearbeitungsanlage, sowie Werkstückbearbeitungsanlage

Publications (1)

Publication Number Publication Date
WO2021250143A1 true WO2021250143A1 (fr) 2021-12-16

Family

ID=76502710

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2021/065554 WO2021250143A1 (fr) 2020-06-10 2021-06-10 Procédé de fonctionnement d'un système d'usinage de pièce, et système d'usinage de pièce

Country Status (3)

Country Link
EP (1) EP4165478A1 (fr)
DE (1) DE102020115462A1 (fr)
WO (1) WO2021250143A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102022106553A1 (de) 2022-03-21 2023-09-21 Homag Plattenaufteiltechnik Gmbh Verfahren zum Betreiben einer Werkzeugmaschine, sowie Werkzeugmaschine
DE102022123669A1 (de) 2022-09-15 2024-03-21 Homag Plattenaufteiltechnik Gmbh Verfahren zum Betreiben einer Werkstückbearbeitungsanlage, sowie Werkstückbearbeitungsanlage

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080161959A1 (en) * 2006-12-01 2008-07-03 Jerard Robert B Method to measure tool wear from process model parameters
DE102017103867A1 (de) 2017-02-24 2018-08-30 Homag Plattenaufteiltechnik Gmbh Verfahren zum Betreiben einer Werkzeugmaschine, insbesondere einer Plattenbearbeitungsanlage zum Bearbeiten plattenförmiger Werkstücke, sowie Werkzeugmaschine
US20190143467A1 (en) * 2017-11-16 2019-05-16 Industrial Technology Research Institute Detection device, detecetion method and compensation method for tool wear

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102017131372A1 (de) 2017-12-28 2019-07-04 Homag Plattenaufteiltechnik Gmbh Verfahren zum Bearbeiten von Werkstücken, sowie Werkzeugmaschine
DE102018110941A1 (de) 2018-05-07 2019-11-07 Homag Plattenaufteiltechnik Gmbh Werkstückbearbeitungsanlage, insbesondere Plattenaufteilsäge, Verfahren zum Betreiben einer Werkstückbearbeitungsanlage, sowie Steuerungseinrichtung

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080161959A1 (en) * 2006-12-01 2008-07-03 Jerard Robert B Method to measure tool wear from process model parameters
DE102017103867A1 (de) 2017-02-24 2018-08-30 Homag Plattenaufteiltechnik Gmbh Verfahren zum Betreiben einer Werkzeugmaschine, insbesondere einer Plattenbearbeitungsanlage zum Bearbeiten plattenförmiger Werkstücke, sowie Werkzeugmaschine
US20190143467A1 (en) * 2017-11-16 2019-05-16 Industrial Technology Research Institute Detection device, detecetion method and compensation method for tool wear

Also Published As

Publication number Publication date
DE102020115462A1 (de) 2021-12-16
EP4165478A1 (fr) 2023-04-19

Similar Documents

Publication Publication Date Title
DE102016121058B4 (de) Werkzeugmaschine
DE102015122165B4 (de) Kühlschmiermittelzuleitungssystem zu Werkzeugmaschine
EP2169491B1 (fr) Système de support et méthode d'optimisation de paramètres de procédé et/ou de paramètres de réglage
EP3941673B1 (fr) Procédé de surveillance automatique de processus lors de la rectification en continu
EP3558581B1 (fr) Procédé pour usiner une plaquette de coupe et dispositif correspondant pour usiner une plaquette de coupe
WO2018153937A1 (fr) Procédé d'exploitation d'une machine-outil, en particulier une installation d'usinage de plaques pour l'usinage de pièces en forme de plaques, ainsi que machine-outil
DE102014204695A1 (de) Verfahren zum Betreiben einer Plattenbearbeitungsanlage
WO2021250143A1 (fr) Procédé de fonctionnement d'un système d'usinage de pièce, et système d'usinage de pièce
EP3732540A1 (fr) Procédé d'usinage de pièces et système d'usinage
EP1760562A2 (fr) Procédé destiné au réglage adaptif de l' avance sur des machines-outils en commande numérique
DE102009020246A1 (de) Verfahren und Mehrachsen-Bearbeitungsmaschine zur zerspanenden Bearbeitung
DE102017131372A1 (de) Verfahren zum Bearbeiten von Werkstücken, sowie Werkzeugmaschine
DE10241742B4 (de) Fertigungsanlage zum Herstellen von Produkten
EP3574379B1 (fr) Procédé de fonctionnement d'une installation de traitement de pièces à usiner, et installation de traitement de pièces à usiner
EP1625911A1 (fr) Appareil de microcablage avec une caméra, un dispositif de traitement d'images, des mémoires et des moyens de comparaison et méthode pour faire fonctionner un tel appareil
EP3585551A1 (fr) Procédé de fonctionnement d'une installation de traitement de pièces, et installation de traitement de pièces
DE102017131373A1 (de) Verfahren zum Bearbeiten von Werkstücken, sowie Bearbeitungssystem
DE102020115463A1 (de) Verfahren zum Betreiben einer Werkstückbearbeitungsanlage, sowie der Werkstückbearbeitungsanlage
DE102017008547A1 (de) Ölnebelkonzentrationshandhabungsvorrichtung, ölnebelhandhabungssystem und ölnebelhandhabungsverfahren
DE102018206865B4 (de) Verfahren zur Bearbeitung eines Rohbauteils durch eine Bearbeitungsmaschine und Bearbeitungsmaschine zur Bearbeitung eines Rohbauteils
DE102022109297A1 (de) Verfahren und Vorrichtung zum Bearbeiten einer Mehrzahl von Schneiden eines Schneidwerkzeugs, insbesondere eines Kreissägeblatts oder eines Bandsägeblatts, mit einem Bearbeitungswerkzeug
DE102022106553A1 (de) Verfahren zum Betreiben einer Werkzeugmaschine, sowie Werkzeugmaschine
EP3144755A1 (fr) Changement d'outil automatique pour une machine-outil a commande numerique
DE102022123798A1 (de) Verfahren und Laserschneidmaschine zum Laserschneiden von Werkstückteilen aus einem Werkstück
DE102021109519A1 (de) Verfahren zum Aufteilen eines plattenförmigen Ausgangswerkstücks, sowie Plattenaufteilanlage

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 21733083

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

ENP Entry into the national phase

Ref document number: 2021733083

Country of ref document: EP

Effective date: 20230110