WO2018153938A1 - Procédé de fonctionnement d'une installation de traitement de pièces, et installation de traitement de pièces - Google Patents

Procédé de fonctionnement d'une installation de traitement de pièces, et installation de traitement de pièces Download PDF

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Publication number
WO2018153938A1
WO2018153938A1 PCT/EP2018/054311 EP2018054311W WO2018153938A1 WO 2018153938 A1 WO2018153938 A1 WO 2018153938A1 EP 2018054311 W EP2018054311 W EP 2018054311W WO 2018153938 A1 WO2018153938 A1 WO 2018153938A1
Authority
WO
WIPO (PCT)
Prior art keywords
tool
size
workpiece
machining
feed rate
Prior art date
Application number
PCT/EP2018/054311
Other languages
German (de)
English (en)
Inventor
Sergey Martynenko
Jonathan KAISER
Markus Blaich
Peter SCHEMMINGER
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 EP18707017.2A priority Critical patent/EP3585551A1/fr
Priority to CN201880013281.0A priority patent/CN110382151B/zh
Publication of WO2018153938A1 publication Critical patent/WO2018153938A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
    • B23D59/00—Accessories specially designed for sawing machines or sawing devices
    • B23D59/001—Measuring or control devices, e.g. for automatic control of work feed pressure on band saw blade
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27B—SAWS FOR WOOD OR SIMILAR MATERIAL; COMPONENTS OR ACCESSORIES THEREFOR
    • B27B5/00—Sawing machines working with circular or cylindrical saw blades; Components or equipment therefor
    • B27B5/02—Sawing machines working with circular or cylindrical saw blades; Components or equipment therefor characterised by a special purpose only
    • B27B5/06—Sawing machines working with circular or cylindrical saw blades; Components or equipment therefor characterised by a special purpose only for dividing plates in parts of determined size, e.g. panels
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
    • Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]

Definitions

  • the invention relates to a method for operating a workpiece machining system, in particular a
  • Plate processing plant is known for example from DE 10 2013 204 409 AI.
  • Plate processing plant is a panel sizing saw.
  • On a plate-shaped workpieces or workpiece stacks lying on a feed table are fed program-controlled by means of a program pusher to a sawing device which is arranged on a saw carriage.
  • the saw carriage is movable transversely to the feed direction of the program pusher.
  • Sawing device is designed as a circular saw with a corresponding drive, which sets a circular saw blade in a rotary motion. From the market are still other machine tools in the form of plate processing equipment for processing
  • Milling equipment and / or drilling equipment is processed.
  • Machine tool to be as low as possible.
  • the inventive method is characterized in particular by the fact that during the processing process, the detected process response variable is compared with the limit, and that depending on the result of the comparison, an action can be triggered.
  • An advantage of the method according to the invention and the machine tool according to the invention is that both the production of defective parts and damage to the tool of the workpiece processing machine can be avoided. This is achieved by everyone
  • a record is selected from a database. This links a limit of the process response variable with at least one process specification variable which is a frame condition of a
  • the data set is selected from a plurality of data records such that the
  • Process input variable (s) of the data set as best as possible with the respective process input variable (s) of the data set
  • the respective machining process is thus defined by the process specification variables, which describe intended framework conditions under which the intended machining process should run.
  • a machining process is already associated with such process Answer sizes have been started and carried out, which are best suited for a planned processing process.
  • a further embodiment of the method according to the invention provides that the process response variable comprises at least one variable from the following group: a variable that is a temperature at a tool during the
  • a frequency which is a vibration of a tool during the machining process
  • a quantity for example, a frequency
  • a size for example, a tool storage during the machining process
  • a power consumption which characterizes a performance of a tool drive during the machining process
  • a size for example, a
  • the process default size comprise at least one variable from the following group: a variable (for example a material specification, a Workpiece dimension, a workpiece thickness, as well as specific material properties such as density, composition,
  • a size for example, a type and type of the tool and its identification number, an age or a state of the tool or a
  • Machining distance of the tool for example a cutting path of a cutting edge
  • a further embodiment provides that the process response variable with a second limit, the fixed
  • Rotational speed of a tool includes.
  • Panel sizing saw ie the feed rate of the saw carriage - is a particularly important and efficient
  • Manipulated variable in order to influence the process response variable (in the language of control engineering, ie the controlled variable) during a machining process. The same applies if the tool is stationary and instead the workpiece is moved for the feed rate of the workpiece. The rotational speed of the tool is also an efficient control variable. It is understood that in a more complex control and / or control strategy, both the
  • Feed rate of the tool or the workpiece and the rotational speed of the tool can be changed.
  • the change in the feed rate be determined on the basis of a mathematical process model, a characteristic curve or a characteristic diagram.
  • Feed rate when a process response reaches a limit to change a fixed value becomes a mathematical one Process model, a characteristic or in particular a
  • Machining process as well as, for example, the nature and extent of reaching or exceeding the limit are determined, resulting in a finer adjustment of the feed rate and thus the best possible
  • Maintaining the efficiency of the workpiece machining system is made possible.
  • the data sets also include a start value for the feed rate, and that at least when the feed rate is changed (and a predetermined quality target has been reached), a new data record with the changed
  • the feed rate is maximized to such an extent that the at least one detected process response variable just does not reach the corresponding limit value.
  • Feed rate (of the tool and / or the
  • the feed rate is thus "learning" to the optimum value, for example, with the progressive wear of the tool
  • Feed rate adjusted accordingly As a result, the workpiece machining system is always operated at the maximum possible feed rate, whereby very short processing times and thus a very good efficiency of the plate processing system can be realized.
  • Comparison dependent action depends on the type of process response variable that is compared to the threshold. This means, for example, that, for example, when a deflection of the tool reaches a limit value, first the feed rate is reduced. If then (if the tool is a saw blade) a minimum limit value for a tooth feed f z is reached, a tool change is triggered as an action.
  • Example of a panel saw would have
  • the process response "tool deflection" is a top priority, as exceeding the limit can not only lead to the production of missing parts, but even damage the tool
  • Ranking would be the drive power of that drive, which sets the tool in rotation, here an exceeding of an upper limit.
  • a workpiece machining system In a workpiece machining system according to the invention, it is provided as a development that it has at least one sensor device for detecting the process response variable includes. This is easy to implement and allows reliable detection of the process response size.
  • Speed of a tool in the region of the respective drive are / is, preferably integrated in this / is. This allows a very reliable detection of the respective process response size.
  • Tool are arranged on a tool holding portion / is and works without contact / work. In this way a very robust detection of these process response quantities is realized.
  • control and / or regulating device with a superordinate
  • Production control system which specifies the process default sizes.
  • a production control system may, for example, be a system which has generated a plan by means of which individual parts are to be produced. Through such a plan will be the
  • Workpiece processing system provides that in the control and / or regulating device, a control loop for controlling the feed rate of the tool and / or for controlling the speed of the tool is realized in response to at least one detected process response size.
  • Figure 1 is a schematic plan view of a
  • Figure 2 is a front view of a saw carriage of
  • FIG. 1 Panel sizing saw of Figure 1;
  • Figure 3 is a plan view of the saw carriage of Figure 2;
  • Figure 4 is a functional diagram for explaining a
  • FIG. 5 is a flow chart of the method of FIG. 4.
  • a workpiece processing system in the form of a plate processing plant as a whole has the reference numeral 10.
  • the panel processor is not as
  • Panel sizing saw but designed as a milling device and / or as a drilling device for working plate-shaped workpieces. Such systems are also called
  • the panel sizing saw 10 includes a feed table 16, which is usually formed as a roller table. To the
  • Feed table 16 is followed by a machine table 18, and to these again connects to a discharge table 20, which consists in the exemplary embodiment shown of four separate segments (without reference numerals).
  • the machine table 18 and the removal table 20 are preferably designed as air cushion tables.
  • a program pusher 30 is arranged, which can be moved in accordance with a double arrow 32.
  • a plurality of collets 34 are attached, of which for reasons of clarity in Figure 1, only one is provided with a reference numeral.
  • To the panel sizing 10 also includes a
  • Operating terminal 36 which is formed in the present case by a keyboard 38 and a screen 40, and a control and regulating device 42, which only symbolically by a
  • the control and regulating device 42 controls and regulates the operation of the Plattenaufteilsäge 10. To this end, it receives signals from various sources.
  • Sensor devices including the symbolic drawn in Figure 1 sensor devices 44 and 46, which may each again comprise a plurality of individual sensors, and will be discussed in more detail below. To be controlled by the tax and
  • Control device in particular the program pusher 30, the collets 34, the saw carriage 24 with the on it
  • the control and regulating device 42 has inter alia a processor 48 and a memory 50.
  • the control and regulating device 42 may be, for example, a conventional PC.
  • In the memory 50 is
  • the saw carriage 24 and parts of the machine table 18 are shown in more detail in Figures 2 and 3.
  • the saw carriage 24 comprises a plate-shaped
  • Tool holding portion 52 carries two rotary tools in the form of a main saw blade 56 and a
  • Scoring saw blade 58 They are movable in the vertical direction to produce a desired depth of engagement in the stack of workpieces 12.
  • the two drives for the main saw blade 56 and the scoring saw blade 58 bear in Figure 3, the reference numerals 60 and 62.
  • the two drives 60 and 62 are also of the control and
  • Control device 42 controlled so that they rotate at a very specific rotational speed.
  • the drawn in Figure 1 sensor devices 44 and 46 are used to detect a feed rate V f of the saw carriage 24 and for detecting a power P v
  • the sensor devices 44 and 46 may for example be arranged in the region of a drive motor (not shown) of the saw carriage 24.
  • a drive motor not shown
  • Figures 2 and 3 are more Sensor devices 64-72 drawn.
  • the sensor device 64 serves to detect a temperature T s of the
  • Main saw blade 56 It is located on the tool holding portion 52 of the saw carriage 24 behind the main saw blade 56 and can contact, for example by means of
  • Temperature sensor for example in the form of a
  • Thermocouple be arranged on the main saw blade 56, preferably in the vicinity of the radially outer edge.
  • the sensor device 66 serves to detect a distance between the main saw blade 56 and the
  • a frequency of the main saw blade 56 is determined. It is also here on
  • Tool holding portion 52 of the saw carriage 24 detects the distance contactless, for example by means of ultrasound.
  • the sensor device 68 serves to detect a vibration value dA w (for example, a frequency) of the tool holding section 52 itself. It is also arranged on the tool holding section 52 and can
  • the sensor device 70 is used to detect a rotational speed N s of the main saw blade 56. It is preferably arranged in the region of the drive 60 or integrated in this.
  • the sensor device 72 finally serves to detect a power P s, for example in the form of a current consumption of the Drive 60 of the main saw blade 56. This is also present in the area of the drive 60
  • a machining process is as follows: The stack of workpieces 12 is placed on an in
  • An operator designated by the reference numeral 76 in FIG. 1, can remove the divided workpieces 14 at the removal table 20.
  • the above-described machining process is performed in accordance with the functional diagram drawn in FIG. 4
  • the operator 76 inputs values for process default variables to the keyboard 38 of the operating terminal 36, wherein these Process default values define the framework conditions of the intended machining process. in the
  • Function block 74 will be values of process default sizes but also of a (not shown)
  • the above-mentioned production control system may, for example, be a system which has generated a cutting plan by means of which individual parts, for example for furniture, are to be produced from the individual plates of the workpiece stack 12. By such a cutting plan and the number of individual plates of the workpiece stack 12 and thus the height of the workpiece stack 12 is specified. Also, the material of the workpieces can be specified in this way. It would also be conceivable, however, for basically all process parameters to be specified by the production control system to the workpiece processing system, in the present case to the control and regulating device 42 of the panel-sizing saw 10,
  • Processing task useful process specification variables include: the material of the workpieces of the workpiece stack 12 and the thickness or height of the workpiece stack 12. The above sizes are therefore those that Properties of the workpiece stack 12
  • Type and type as well as state and / or age or running time of the main saw blade 56, so sizes, the properties of the tool characterizing.
  • this quality goal may have the value "very good,” “good,” “satisfactory.” But finer grades of the quality goal, such as grades or points, may also be possible.
  • predetermined weighting key a value for a total quality characteristic is determined.
  • further standard values for quality features which are customary in practice, for example for the evaluation of edge breakouts and positional deviations of a machined surface.
  • the quality target has the highest priority on the machined workpiece.
  • the process response quantities are those quantities that result during the execution of the machining process in response to the process default values and that are detected by the sensor devices 64-72 and / or determined by the control and regulating device 42. The in the
  • Process response variables define those values of the process response quantities that are specific to the process and the
  • datasets of the database can link the specific values of process default sizes not only to limits of process response sizes, but to other sizes. For example, a rotational speed of the main saw blade 56 and / or the
  • Scoring saw blade 58 and a feed rate of the saw carriage 24 may be linked to the process default sizes and in this way for the intended Machining process can be specified at least as start value.
  • a function block 80 symbolizes the execution of the actual machining process, as has already been generally described above.
  • a function block 82 symbolizes a process monitoring for the machining process 80.
  • a function block 84 symbolizes the during the
  • dependent limits G ⁇ are provided in function block 86.
  • the function block 84 is also for a comparison of the detected in the function block 82 or determined process response variables T s , A s , dA s , and P s with absolute and so far firmly predetermined limits G x , which are provided in a function block 88.
  • These absolute limit values G x do not depend on the specific processing process or on the data set selected for this, but are rigid for the specific one
  • function block 90 Depending on the result of the comparison in function block 84, an action is triggered in function block 90. This consists in this case in a change in
  • Feed rate V f of the saw carriage 24 In an embodiment, not shown a
  • Feed rate of the workpiece exist.
  • the action could also include a change in the rotational speed or rotational speed of the tool, in the present case of the main saw blade 56.
  • a plurality of process response quantities T s , A s , dA s and P s are compared with corresponding limit values G ⁇ and G x .
  • the action in function block 90 depends on whether only one of the
  • Process response values T s , A s , dA s and P s exceeds the corresponding limit value G ⁇ or G x , or whether at the same time several of the detected or determined process variables Response sizes T s , A s , dA s and P s exceed their respective limits G ⁇ . In the latter case, the action is selected according to a ranking of the process response quantities T s , A s , dA s and P s .
  • the ranking is preferably as follows:
  • Ranking does not have to be rigid. Rather, it can depend on the processing task (function block 74) as well as on the
  • the operator 76 or the
  • Production control system prioritize a process time that is as short as possible or lower than the highest possible one
  • Feed rate V f reduced by a value xi.
  • N s rotational speed of the tool If, at a reduced feed rate V f, the minimum allowable tooth feed f z is reached or undershot, the operator 76 is instructed, for example, by a
  • the feed rate V f is increased by a value X 2. If this does not lead to a reduction of the oscillation value dA s , the feed rate V f is reduced, for example, by a value 2 * X2.
  • the feed rate V f is reduced by a value X3.
  • the value reduced by the value X3 is additionally reduced
  • Feed rate V f with a minimum allowable tooth feed f z for the current cutting task compared. If, at a reduced feed rate V f, the minimum tooth feed f z is reached or undershot, a tool change is again initiated or automatically carried out.
  • the feed rate V f is increased by a value X4. If this does not lead to a reduction in the temperature T s , the feed rate V f is reduced here by a value of 2 * x 4 , for example.
  • the action can consist in a change of the feed rate V f by values X1-X5.
  • the size of the values X1-X5 can either be rigidly predetermined, or it can be determined in function block 90 using a mathematical process model, a characteristic or a multi-dimensional map depending on the scope of the
  • Function block 84 found that of one of the process response variables T s , A s , dA s and P s, the corresponding limit value G ⁇ is exceeded or fallen below, is a new
  • Feed rate V f as a starting value in the form of a process default size associated with the other process default sizes and limits.
  • Feed rate is introduced. It is also possible that the feed rate V f during a machining process or during
  • FIG. 5 shows a flow chart of the method for
  • the method begins in a block 102.
  • a block 104 the process default sizes are defined, according to the
  • Function block 74 In a block 106, the records are retrieved from the database 78. In a block 108, the corresponding limits G ⁇ for the process response quantities are extracted from the data sets. In block 110, the actual processing process is started, corresponding to function block 80 of FIG. 4. In a block 112, the process response quantities T s , A s , dA s , dA w and P s are detected, corresponding to function block 82 of FIG.
  • the detected process response quantities T s , A s , d A s and P s are compared with the corresponding limits G ⁇ . If none of the process Response sizes T s , A s , dA s and P s the respective limit G ⁇ , in a block 116, no reaction. Otherwise, an action takes place in a block 118, for example in the form of a change in the feed rate V f of the saw carriage 24. Subsequently, in 120 the process response variables T s , A s , d A s and P s are compared with the corresponding fixed limits G x . If none of the process response variables T s , A s , dA s and P s reaches the respective limit value G x , no action takes place in a block 122. Otherwise, an action is taken in a block 124, again
  • a block 126 it is checked if it has previously been to a
  • Machining process has been achieved on the workpiece, is fine.
  • Such an automated device is subjected to quality control.
  • Such an automated device could be, for example, one or more CCP cameras
  • Process default size are used in a corresponding future intended processing process.
  • the method ends in a block 132.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Automatic Control Of Machine Tools (AREA)
  • Numerical Control (AREA)

Abstract

L'invention concerne un procédé de fonctionnement d'une installation de traitement de pièces, permettant de détecter, pendant un processus de traitement, au moins indirectement (112) au moins une grandeur de réponse de processus résultant de la mise en œuvre du processus de traitement. Selon l'invention, pendant le processus de traitement (110), la grandeur de réponse de processus détectée est comparée avec la limite (114) et, en fonction du résultat de la comparaison, une action est effectuée (118).
PCT/EP2018/054311 2017-02-24 2018-02-21 Procédé de fonctionnement d'une installation de traitement de pièces, et installation de traitement de pièces WO2018153938A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP18707017.2A EP3585551A1 (fr) 2017-02-24 2018-02-21 Procédé de fonctionnement d'une installation de traitement de pièces, et installation de traitement de pièces
CN201880013281.0A CN110382151B (zh) 2017-02-24 2018-02-21 用于运行工件加工设备的方法以及工件加工设备

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102017103866.3 2017-02-24
DE102017103866.3A DE102017103866A1 (de) 2017-02-24 2017-02-24 Verfahren zum Betreiben einer Werkstückbearbeitungsanlage, sowie Werkstückbearbeitungsanlage

Publications (1)

Publication Number Publication Date
WO2018153938A1 true WO2018153938A1 (fr) 2018-08-30

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PCT/EP2018/054311 WO2018153938A1 (fr) 2017-02-24 2018-02-21 Procédé de fonctionnement d'une installation de traitement de pièces, et installation de traitement de pièces

Country Status (4)

Country Link
EP (1) EP3585551A1 (fr)
CN (1) CN110382151B (fr)
DE (1) DE102017103866A1 (fr)
WO (1) WO2018153938A1 (fr)

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Publication number Priority date Publication date Assignee Title
DE102021104227A1 (de) * 2021-02-23 2022-08-25 Homag Gmbh Verfahren zum Betrieb einer Bearbeitungsvorrichtung sowie eine solche Bearbeitungsvorrichtung
DE202021105583U1 (de) 2021-10-14 2023-01-17 Altendorf Gmbh Holzbearbeitungsmaschine, insbesondere Formatkreissäge und/oder Kantenanleimmaschine

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EP2143517A1 (fr) * 2008-07-08 2010-01-13 HOLZMA Plattenaufteiltechnik GmbH Procédé de fonctionnement d'une installation de répartition de plaques pour pièces usinées en forme de plaque de grand format, notamment éléments de meuble et installation de répartition de plaques
DE102008032159A1 (de) * 2008-07-08 2010-04-15 Holzma Plattenaufteiltechnik Gmbh Plattenaufteilanlage für großformatige plattenförmige Werkstücke, insbesondere Möbelteile
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EP1743738A1 (fr) * 2005-07-11 2007-01-17 Puhla, Harald Réglage de la pression de travail pour une machine outil
EP2143517A1 (fr) * 2008-07-08 2010-01-13 HOLZMA Plattenaufteiltechnik GmbH Procédé de fonctionnement d'une installation de répartition de plaques pour pièces usinées en forme de plaque de grand format, notamment éléments de meuble et installation de répartition de plaques
DE102008032159A1 (de) * 2008-07-08 2010-04-15 Holzma Plattenaufteiltechnik Gmbh Plattenaufteilanlage für großformatige plattenförmige Werkstücke, insbesondere Möbelteile
DE102013204409A1 (de) 2013-03-13 2014-09-18 Holzma Plattenaufteiltechnik Gmbh Plattenbearbeitungsanlage
DE102014202733A1 (de) * 2014-02-14 2015-08-20 Holzma Plattenaufteiltechnik Gmbh Verfahren zum Betreiben einer Maschine, insbesondere einer Plattenaufteilanlage
DE102014204695A1 (de) * 2014-03-13 2015-09-17 Holzma Plattenaufteiltechnik Gmbh Verfahren zum Betreiben einer Plattenbearbeitungsanlage

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Publication number Publication date
DE102017103866A1 (de) 2018-08-30
EP3585551A1 (fr) 2020-01-01
CN110382151B (zh) 2022-03-01
CN110382151A (zh) 2019-10-25

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