WO2022034124A1 - Installation de traitement de pièces et procédé de fonctionnement d'une installation de traitement de pièces - Google Patents

Installation de traitement de pièces et procédé de fonctionnement d'une installation de traitement de pièces Download PDF

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Publication number
WO2022034124A1
WO2022034124A1 PCT/EP2021/072351 EP2021072351W WO2022034124A1 WO 2022034124 A1 WO2022034124 A1 WO 2022034124A1 EP 2021072351 W EP2021072351 W EP 2021072351W WO 2022034124 A1 WO2022034124 A1 WO 2022034124A1
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WO
WIPO (PCT)
Prior art keywords
workpiece
edge
workpiece edge
detection device
processing system
Prior art date
Application number
PCT/EP2021/072351
Other languages
German (de)
English (en)
Inventor
Markus Blaich
Sven Wirth
Paul Barth
Matthias Erbele
Markus Bacher
Manuel FRIBOLIN
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 EP21758676.7A priority Critical patent/EP4196321A1/fr
Priority to CN202180045555.6A priority patent/CN115734845A/zh
Publication of WO2022034124A1 publication Critical patent/WO2022034124A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25J—MANIPULATORS; CHAMBERS PROVIDED WITH MANIPULATION DEVICES
    • B25J9/00—Programme-controlled manipulators
    • B25J9/16—Programme controls
    • B25J9/1679—Programme controls characterised by the tasks executed
    • 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
    • B27D—WORKING VENEER OR PLYWOOD
    • B27D5/00—Other working of veneer or plywood specially adapted to veneer or plywood
    • B27D5/006—Trimming, chamfering or bevelling edgings, e.g. lists
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B19/00—Programme-control systems
    • G05B19/02—Programme-control systems electric
    • G05B19/418—Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS] or computer integrated manufacturing [CIM]
    • G05B19/41815—Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS] or computer integrated manufacturing [CIM] characterised by the cooperation between machine tools, manipulators and conveyor or other workpiece supply system, workcell
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27D—WORKING VENEER OR PLYWOOD
    • B27D5/00—Other working of veneer or plywood specially adapted to veneer or plywood
    • B27D5/003—Other working of veneer or plywood specially adapted to veneer or plywood securing a veneer strip to a panel edge
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/46—Wood
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B2219/00—Program-control systems
    • G05B2219/30—Nc systems
    • G05B2219/39—Robotics, robotics to robotics hand
    • G05B2219/39105—Manipulator cooperates with moving machine, like press brake
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B2219/00—Program-control systems
    • G05B2219/30—Nc systems
    • G05B2219/45—Nc applications
    • G05B2219/45144—Saw
    • 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 workpiece processing system and a method for operating a workpiece processing system according to the preambles of the independent claims.
  • DE 10 2017 103 867 A1 discloses a method for operating a machine tool in which, during a machining process, 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 parameter of the tool, for example a previous operating time, to form a data set.
  • 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 parameter of the tool for example a previous operating time
  • the workpiece processing system has the advantage that it can be used to determine the quality of a workpiece edge generated during processing in a fully automated manner and without delay. This makes it possible to react to the previously determined quality in a subsequent processing operation and either increase the cycle rate (if the quality is "too good") or reduce the cycle rate or change other operating variables (if the quality is "too bad”). . If necessary, it can also be arranged that the workpiece is "too bad” quality again is produced .
  • a technology is used to determine the processing quality, which reliably indicates the quality of a processed or processed product. produced workpiece edge can detect.
  • a workpiece processing system for processing and/or producing a workpiece edge on a plate-shaped workpiece.
  • This can, for example, be a panel dividing system for dividing at least one panel-shaped workpiece.
  • panel dividing systems are known, for example, in the form of panel dividing saws, with which, for example, parts for the production of pieces of furniture can be produced.
  • the workpiece processing system according to the invention comprises a feed table on which the plate-shaped workpiece lies and from which it can be fed to a processing device by means of a conveyor device, for example by means of a program fence with collets.
  • the processing device can preferably be a sawing device or be a saw unit.
  • the workpiece processing system can also include a removal table, onto which the workpiece processed by the processing device is conveyed and from which it can either be fed back to the processing device for a further processing operation, or from which it can be removed and, for example, stacked.
  • a control and regulating device of the workpiece processing system according to the invention serves to control and regulate the operation of the workpiece processing system. This operation can preferably run fully automatically, for example using a robot which can also be controlled by the control and regulation device and which handles the panel-shaped workpiece in particular when it is lying on the removal table.
  • the workpiece processing system comprises a detection device controlled by the open-loop and closed-loop control device for automatically detecting at least one property of a workpiece edge that has been processed and/or produced by the processing device.
  • the detection device comprises at least one image detection device, for example a camera with a CCD sensor.
  • a viewing axis of the image capturing device is directed at least in the area of the workpiece edge to an area of the workpiece edge to be recorded, with the viewing axis being at least approximately orthogonal to a plane of the plate-shaped workpiece.
  • the image acquisition device observes the workpiece edge from above or below, so that an optimal assessment of the quality of the workpiece edge is made possible.
  • an evaluation can also provide a quality indicator or Quality parameter are determined, by means of which a simple decision can be made fen whether an operating parameter of the workpiece processing system should be changed and / or whether the assessed workpiece must be produced again.
  • the detection device is arranged in the area of a removal table, preferably attached to the removal table or integrated into it.
  • the integration of the detection device into the workpiece processing system is possible without major interventions f fe in the design of the workpiece processing system being necessary. It may even be possible to retrofit existing workpiece processing systems with a detection device.
  • this positioning of the detection device does not affect the course of the process in the workpiece processing system, or at least only to a small extent.
  • the detection device can be moved automatically from a rest position to a working position and back, with it being arranged below a support level of the removal table in the rest position and being arranged in the working position in such a way that it has the property of the workpiece edge of a Removal table lying workpiece can detect.
  • the detection device occurs in the lowered state not or hardly visible, so that the operation of the workpiece processing system is undisturbed or remains unaffected.
  • the handling of workpieces on the removal table either by an operator or by a robot, can remain at least largely unaffected by the detection device. Only when the quality of a workpiece edge is to be recorded is the recording device automatically moved into the working position, controlled by the control and regulation device.
  • the detection device for detecting the property of the workpiece edge can be moved longitudinally to the workpiece edge, it preferably having a drive device which can move the detection device longitudinally to the workpiece edge while the detection device detects the property of the workpiece edge. This enables a larger area of the workpiece edge to be detected, which improves the reliability of the assessment of the quality of the workpiece edge.
  • the image acquisition device has at least two CCD sensors, which are arranged on opposite sides of the workpiece relative to the plane of the plate-shaped workpiece, so that a first line of sight of the first CCD sensor points to a first edge of the workpiece and a second line of sight to the second CCD sensor is directed to a second workpiece edge that is adjacent and parallel to the first workpiece edge.
  • This permits a comprehensive qualification of the workpiece edge of the plate-shaped workpiece produced during processing. This takes into account the fact that the plate-shaped workpieces practically always have a discrete thickness and thus a workpiece edge has two workpiece edges.
  • the detection device comprises an illumination device, with a beam axis of the illumination device in the area of the workpiece edge being directed at the area of the workpiece edge to be recorded and at least approximately in the plane of the plate-shaped workpiece and at least approximately orthogonally to a longitudinal extension the edge of the workpiece.
  • the beam axis of the illumination device is thus essentially orthogonal to the viewing axis of the image acquisition device, whereby outliers and ripples of the workpiece edge are made particularly visible, which in turn improves the quality of the assessment of the workpiece edge.
  • one of external influences For example, the currently available daylight, independent recording device created, whereby reproducible results can be achieved when assessing the quality of workpiece edges.
  • the lighting device preferably generates a light beam focused on the edge of the workpiece.
  • a preferably white LED or a halogen lamp can be used as the light source.
  • the use of a laser is also conceivable.
  • the lighting device has at least two light sources, with a first beam axis of the first light source being directed at the first workpiece edge and a second beam axis of the second light source being directed at the second workpiece edge.
  • the separation into a plurality of beam axes that are separate from one another takes place by means of a corresponding alignment of individual segments of the light source, for example by the light source having individual LEDs which can be aligned accordingly
  • the image acquisition device comprises a CCD sensor whose viewing axis is initially not aligned orthogonally to the plane of the workpiece, and has at least one deflection device for the viewing axis, which has the viewing axis of the CCD sensor in the area of the workpiece edge orthogonally to the plane of the workpiece aligns with the edge of the workpiece.
  • the CCD sensor can be arranged at virtually any point, for example a protected point, of the workpiece processing system.
  • the deflection device can have one or more mirrors, but optionally also, for example, a light guide.
  • the invention also includes a method for operating a workpiece processing system, which is controlled and regulated by a control and regulating device and in which a panel-shaped workpiece is fed to a processing device and a workpiece edge of the panel-shaped workpiece is processed and/or produced. It is proposed that at least one property of the processed and/or produced workpiece edge is recorded by means of a recording device, the recording device having at least one image recording device, the method also having the following steps: a. Aligning a line of sight of the image acquisition device to an area of the workpiece edge to be acquired in such a way that the viewing axis in the area of the workpiece edge is approximately orthogonal to a plane of the plate-shaped workpiece; b. Creation of at least one image of the edge of the workpiece by means of the image acquisition device with the lighting device switched on; and c. automatic evaluation of the created image and automatic determination of at least one property of the workpiece edge by means of the evaluation.
  • the method according to the invention also have the following steps: aligning a beam axis of an illumination device with the area of the edge to be detected in such a way that the beam axis in the area of the workpiece edge is at least approximately in the plane of the plate-shaped workpiece and at least in is approximately orthogonal to a longitudinal extent of the edge of the workpiece, and creating the image of the edge of the workpiece with the lighting device switched on.
  • the method steps be carried out for different areas of the workpiece edge. This improves the information quality of the assessment of the quality of the machined workpiece edge.
  • the image capturing device be stationary relative to the processed and/or manufactured workpiece edge while the image is being created.
  • the workpiece can be moved relative to the image capturing device, or the visual axis of the image capturing device is moved, for example by means of movable mirrors.
  • both the image capturing device and the workpiece it is also conceivable for both the image capturing device and the workpiece to be stationary during the image capturing process.
  • the image capturing device move relative to the edge of the workpiece while the image is being created and that the lighting device emit a flash-like light pulse to create an image. This further improves the quality of the detection result.
  • At least two images be created, with a first image showing an end area of the workpiece edge (e.g. a corner of the workpiece) and a second image showing an area of the workpiece edge remote from the end area (e.g. a central part lying between two corners). area) depicts .
  • This also serves to improve the quality assessment, since only locally occurring quality values of the workpiece edge can be compensated for.
  • the method includes the step: automatic creation of a flow chart by the control and regulation device the panel processing plant comprising at least steps b and c above .
  • the process of detecting the quality of the workpiece edge is automatically integrated into the workpiece processing sequence, so that no manual interaction by an operator is necessary.
  • Figure 1 is a schematic plan view of a first
  • Figure 2 is a schematic section through a
  • Figure 3 is a schematic plan view of the in
  • Figure 2 shown area
  • FIG. 4 shows a schematic side view of the device shown in FIG.
  • FIG. 5 shows a representation similar to FIG. 1 of a second embodiment
  • FIG. 6 shows a representation similar to FIG. 1 of a third embodiment
  • FIG. 7 shows a representation similar to FIG. 1 of a fourth embodiment
  • FIG. 8 shows a representation similar to FIG. 1 of a fifth embodiment
  • FIGS. 9-12 show schematic side views of different designs of detection devices.
  • Figure 13 is a flow chart of a method for
  • a workpiece processing system bears the reference symbol 10 in the figures.
  • this is a panel dividing plant, namely a panel dividing saw, with which large-format panel-shaped workpieces can be divided.
  • she comprises in the present case, by way of example, a feed table 12 which can also be formed, for example, by a plurality of parallel roller rails.
  • a machine table 14 adjoins the feed table 12, which can be embodied, for example, as an air-cushion table.
  • a sawing gap 16 is present in the machine table 14, and a saw carriage with a sawing unit is arranged below the machine table 14 (not shown), which can be moved along a sawing line 18 indicated by dot-dash lines. To this extent, the saw unit forms a processing device.
  • a removal table 20 consisting of several individual segments adjoins the machine table and can also be designed as an air-cushion table.
  • a robot 22 is present to the side of the removal table 20 and has a robot arm 24 and a gripping device, for example in the form of a suction traverse 26 .
  • a possible working area of the robot 22 is indicated by a circular dot-dash line 28 .
  • the work area 28 covers part of the unloading table 20 , part of the machine table 14 and part of the infeed table 12 .
  • a portal-like program slide 32 is provided in the area of the feed table 12, on the side facing the machine table 14 a plurality of collets 34 are attached. With these, a rear edge of a workpiece viewed in a feed direction (arrow 35 ) can be gripped.
  • the program fence 32 can be automatically moved parallel to the feed direction 35 by means of a corresponding drive, as a result of which a workpiece gripped by the program fence 32 can be positioned relative to the sawing line 18 .
  • the workpiece processing system 10 also includes a control and regulation device 36 .
  • This can include, for example, one or more computers with appropriate microprocessors and memories on which program code for executing specified method steps is stored.
  • the control and regulating device 36 can have communication interfaces (not shown in the drawing) with which it communicates with an operator and/or other control and regulating devices as well as with actuators and drives of the workpiece processing system 10 , for example the saw unit , the program fence 32 and the robot 22 can communicate .
  • the communication interfaces can include, for example, a screen, a keyboard, a microphone, a loudspeaker and, in general, connections for exchanging data.
  • the control and regulation device 36 receives signals from a large number of sensors, which are also not shown here.
  • the workpiece processing system 10 also includes a detection device 38 which, in the embodiment shown in FIG. 1, is arranged, for example, in the area of the removal table 20; remote edge of the unloading table 20 .
  • This detection device 38 also communicates with the control and regulation device 36 by supplying signals thereto and by being controlled by the control and regulation device 36 .
  • the detection device 38 is used, in a manner to be explained below, for the automatic detection of a quality-characterizing property of a workpiece edge of a workpiece that has been machined or produced by means of the processing device.
  • a workpiece edge is shown lying on the removal table 20 in FIG.
  • a workpiece edge, on which said workpiece edge is present, is denoted by 42 in FIG.
  • Components of the detection device 38 are drawn in greater detail, although schematically, in FIG.
  • the workpiece edge 42 of the workpiece 40 lying on the removal table 20 is also drawn in greater detail in FIG. It can be seen that the workpiece 40 has a core 44 and an upper coating 46a as well as a lower coating 46b.
  • the core 44 can be made of a pressboard wood material, for example.
  • the coatings 46a-b are typically plastic.
  • a workpiece 40 of the type shown in FIG. 2 can be used, for example, for the manufacture of furniture.
  • the workpiece edge 42 has an upper first workpiece edge 48a in FIG. 2 and a lower second workpiece edge 48b in FIG.
  • the two workpiece edges 48a-b run parallel to one another and perpendicular to the plane of the drawing in FIG. 2 and are adjacent to one another.
  • the detection device 38 has an illumination device 50 with a first light source 50a and a second light source 50b.
  • the light sources 50a-b can include halogen light sources, LED light sources and/or laser light sources.
  • the detection device 38 has an image detection device 52 with a first CCD sensor 52a and a second CCD sensor 52b.
  • a first beam axis 54a of the first light source 50a is directed towards the first workpiece edge 48a.
  • a second beam axis 54b of the second light source 50b is directed onto the second workpiece edge 48b.
  • a first viewing axis 56a of the first CCD sensor 52a is directed towards the first workpiece edge 48a, whereas a second viewing axis 56b of the second CCD sensor 52b is directed towards the second workpiece edge 48b.
  • Both the beam axes 54a-b and the viewing axes 56a-b are aligned orthogonally to a longitudinal extent of the workpiece edge 42, which in FIG. 2 runs perpendicular to the plane of the drawing. It can be seen that the two viewing axes 56a-b of the CCD sensors 52a-b of the image acquisition device 52 are orthogonal to a center plane 58 of the plate-shaped workpiece 40, and it can be seen that the two CCD sensors 52a-b are relative to the center plane 58 of the Plate-shaped workpiece 40 are arranged on opposite sides of the workpiece 40.
  • the basic functional principle of the detection device 38 is similar to that which is described in DE 36 33 089 A1. Accordingly, light which, for example, hits the workpiece edge 48a from the light source 50a along the beam axis 54a is reflected there. In the case of outliers in the coating 46a and other edge breakouts, the micro-areas produced in this way with different inclinations act as reflectors for the incident light. If such a microsurface were inclined by 45°, the light would be reflected perpendicularly to the beam axis 54a in the direction of the viewing axis 56a. Using the CCD sensor 52a, the intensity of the reflected light are measured, which allows a precise conclusion on the geometric shape of the workpiece edge 48a. In this way, the quality of the workpiece edges 48a-b produced by the sawing unit can be detected by means of the detection device 38 and assessed by corresponding algorithms in the control and regulation device 36 .
  • the entire detection device 38 can be automatically moved parallel to the workpiece edge 42 by means of a drive device (not shown), which is also controlled by the control and regulation device 36 .
  • a drive device (not shown), which is also controlled by the control and regulation device 36 .
  • the detection device 38 is slidably guided or guided, for example, on a linear guide 62 . stored .
  • the movement preferably takes place while the detection device 38 detects the property of the workpiece edges 48a-b by means of the lighting device 50 and the image detection device 52 .
  • the entire detection device 38 can be moved automatically, ie by means of a corresponding remote-controlled motorized drive device, from a rest position to a working position and back, in accordance with the double arrow 63 drawn in FIG.
  • the detection device 38 In the rest position indicated in Figure 4 by a box drawn with a solid line, the detection device 38 is located below a support plane 64 of the unloading table 20 .
  • the detection device 38 In the working position indicated in Figure 4 by a box drawn with a dashed line, the detection device 38 is arranged in such a way that it can detect the property of the workpiece edges 48a-b of the workpiece edge 42 of the workpiece 40 lying on the removal table 20, as described above .
  • the detection device 38 preferably assumes the rest position when detection of a property of the workpiece edges 48a-b of a workpiece 40 lying on the removal table 20 is not desired. This is the case, for example, when the workpiece 40 is to be handled either by the robot 22 or by an operator on the removal table 20 . This occurs, for example, when the workpiece 40 is to be fed back to the sawing line 18 for a further processing operation by the sawing unit.
  • the workpiece 40 can be fixed on the removal table 20 by means of a fixing device 66 on the removal table 20.
  • the fixing device 66 is indicated schematically in FIGS.
  • the fixing device can also be in the Detection device and / or the suction traverse be integrated.
  • the detection device 38 is arranged in the area of the feed table 12 and there in turn in the area of the angle ruler 30 , ie laterally.
  • the workpiece 40 is fixed here while the workpiece edges 48a-b are detected by the detection device 38 by means of the program slide 32 and the collets 34 and by means of a movable aligner 68, which can press the workpiece 40 in the lateral direction against the angle ruler 30.
  • the detection device 38 is stationary at least during the detection process, whereas during the detection of the workpiece edges 48a-b by the detection device 38 the workpiece 40 is moved by the program carriage 32 parallel to the feed direction 35.
  • the detection device 38 is arranged in the area of the removal table 20 , but there on the side in the area of the angle ruler 30 .
  • a workpiece 40 lying laterally on the removal table 20 can be detected by the detection device 38 .
  • a relative movement between the workpiece 40 and the detection device 38 can be brought about either by a movement of the detection device 38 along the angle ruler 30 or by a movement of the workpiece 40 by an operator or by the robot 22 will .
  • a drive for positioning the workpiece is integrated into the detection device, by means of which said relative movement between the workpiece and the detection device can be brought about.
  • the detection device 38 is arranged in the area of the machine table 14, there again to the side and/or above.
  • the detection device 38 is arranged in an area 70 separate from the feed table 12, the machine table 14 and the removal table 20, which can be, for example, an intermediate buffer or a storage area.
  • this separate area 70 is arranged in FIG. 8 in the vicinity of the robot 22 and the removal table 20 .
  • this area 70 is arranged more to the side of the feed table 12 or to the side of the machine table 14 .
  • FIGS. 9-12 show different possible configurations of the detection device 38 .
  • the detection device 38 includes an image detection device 52 with two CCD sensors 52a-b, but only a single illumination device 50 a single light source 50a, which is directed towards the workpiece edge 42 of the workpiece 40 as a whole.
  • the image acquisition device 52 comprises only a single CCD sensor 52a, with which only the upper first workpiece edge 48a can be observed.
  • the image acquisition device 52 again includes only a single CCD sensor 52b, with which only the lower, second workpiece edge 48b can be observed.
  • the image capturing device 52 again comprises only a single CCD sensor 52a, whose viewing axis in the area of the CCD sensor 52a is however not aligned orthogonally to the center plane 58 of the workpiece 40.
  • the single CCD sensor 52a is arranged to the side of the workpiece edge 42 in the center plane 58 .
  • the detection device 38 has two deflection devices 72 in the present example in the form of mirrors, with which the viewing axis 56a or 56b can be aligned orthogonally to the center plane 58 of the workpiece 40 on the workpiece edges 48a-b of the workpiece edge 42.
  • a method for operating the workpiece processing system 10 using the detection device 38 is described below and described with reference to the flow chart of FIG.
  • the panel-shaped workpiece 40 is fed in a function block 76 by means of the program fence 32 and/or the robot 22 to the processing device in the form of the saw unit and the workpiece edge 42 is produced with the workpiece edges 48a-b.
  • the workpiece 40 is fed with the workpiece edge 42 to the detection device 38 .
  • the viewing axes 56a-b of the image capturing device 52 are aligned with the areas of the workpiece edges 48a-b to be recorded in such a way that they are approximately orthogonal to the center plane 58 of the workpiece 40 in the area of the workpiece edges 48a-b.
  • the beam axes 54a-b of the light sources 50a-b of the lighting device 50 are aligned with the areas of the workpiece edges 48a-b to be detected in such a way that the beam axes 54a-b in the area of the workpiece edges 48a-b are approximately in the center plane 58 of the workpiece 40 and orthogonal to the longitudinal extent of the workpiece edges 48a-b.
  • the light sources 50a-b may be in a fixed relationship relative to the CCD sensors 52a-b such that when the light sources 50a-b are aligned, the CCD sensors 52a-b are automatically aligned as well.
  • a plurality of images of the workpiece edges 48a-b are then generated using the Image acquisition device 52 created when lighting device 50 is switched on.
  • the detection device 38 is moved relative to the workpiece edges 48a-b parallel to them, and the lighting device 50 emits a flash-like light pulse to create an image.
  • the lighting device 50 can also emit permanent light.
  • At least two images are created, with a first image depicting an end area 86 (see FIG. 3) of the workpiece edges 48a-b and a second image depicting a central area 88 (also see FIG. 3) of the workpiece edges 48a-b that is distant from the end area.
  • a function block 90 an automatic evaluation of the created images then takes place, and a property of the workpiece edges 48a-b or of the workpiece edge 42 is determined, for example in the form of a quality index.
  • the method ends in a function block 92 .
  • control and regulating device 36 creates a flow chart according to which the workpiece 40 is divided by the sawing unit in such a way that the quality of the workpiece edges is measured at suitable times 48a-b can be determined according to the function blocks 78-90.
  • This has the advantage that the recording can be carried out in a comparatively time-neutral manner and parallel to other processing steps.
  • the detection device 38 is stationary in the function block 84 and does not move relative to the workpiece 40 .
  • the quality of only a single workpiece edge 48a or 48b may also be captured or measured. can be determined.
  • control and regulation device can select workpieces in advance based on the pending cutting plans to record the quality at the workpiece edge.
  • the workpiece to be checked is positioned in the detection device by the operator or the robot, for example by means of the suction traverse, and fixed by the fixing device.
  • the detection device and automatically assessed by the control and regulation device While the quality of the workpiece edges is detected by the detection device and automatically assessed by the control and regulation device, the Operator, the robot and the workpiece processing system already perform other process steps in the production process of the workpiece processing system.
  • the detection and evaluation of the quality of the workpiece edges by the detection device and control and regulation device further workpieces can already be produced or other partially or fully processed workpieces can be handled by the operator or the robot on the feed or removal table. Consequently, the detection and evaluation of the quality of the workpiece edges can be integrated into the production process of the workpiece processing system without too great an influence on the productivity of the workpiece processing system.
  • certain rules for the specific selection of workpieces to be checked in the forthcoming production sequence are stored in the control and regulating device. For example, only workpieces in the production sequence are selected to record the quality of the workpiece edges if workpieces are to be produced from a plate material that differs from the respective previous section of the production process and/or a certain interval of a time variable of the tool, for example the operating time, in a corresponding forecast of this amount of time is exceeded.

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  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Automation & Control Theory (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Quality & Reliability (AREA)
  • Manufacturing & Machinery (AREA)
  • General Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
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  • Length Measuring Devices By Optical Means (AREA)
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Abstract

L'invention concerne une installation de traitement de pièces destinée au traitement et/ou à la production d'un bord de pièce (48a-b) sur une pièce plane (40), comprenant un dispositif de détection (38), qui est commandé par un dispositif de commande à boucle ouverte et à boucle fermée (36), destiné à détecter automatiquement au moins une propriété d'un bord de pièce (48a-b). Le dispositif de détection (38) comprend un dispositif de capture d'image (52), un axe visuel (56a-b) du dispositif de capture d'image (52) est dirigé dans la région du bord de pièce (48a-b) vers une région du bord de pièce (48a-b) à capturer et est disposé au moins approximativement perpendiculaire à un plan (58) de la pièce plane (40).
PCT/EP2021/072351 2020-08-14 2021-08-11 Installation de traitement de pièces et procédé de fonctionnement d'une installation de traitement de pièces WO2022034124A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP21758676.7A EP4196321A1 (fr) 2020-08-14 2021-08-11 Installation de traitement de pièces et procédé de fonctionnement d'une installation de traitement de pièces
CN202180045555.6A CN115734845A (zh) 2020-08-14 2021-08-11 工件加工设备和用于操作工件加工设备的方法

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DE102020121446.4A DE102020121446A1 (de) 2020-08-14 2020-08-14 Werkstückbearbeitungsanlage sowie Verfahren zum Betreiben einer Werkstückbearbeitungsanlage
DE102020121446.4 2020-08-14

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WO2022034124A1 true WO2022034124A1 (fr) 2022-02-17

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EP (1) EP4196321A1 (fr)
CN (1) CN115734845A (fr)
DE (1) DE102020121446A1 (fr)
WO (1) WO2022034124A1 (fr)

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DE102021125896A1 (de) 2021-10-06 2023-04-06 Ima Schelling Deutschland Gmbh Anlage, insbesondere Holzverarbeitungsanlage, zur Bearbeitung und Handhabung von plattenförmigen Werkstücken
DE102022116592A1 (de) 2022-07-04 2024-01-04 Homag Gmbh Beschichtungsvorrichtung und Verfahren zum beschichten einer Schmalfläche eines Werkstücks
DE102022126704A1 (de) 2022-10-13 2024-04-18 Homag Gmbh Beschichtungsvorrichtung und Verfahren zum Beschichten von Werkstücken
DE102022131888A1 (de) 2022-12-01 2024-06-06 Homag Plattenaufteiltechnik Gmbh Verfahren zum Aufteilen eines ersten Werkstücks in zweite Werkstücke, sowie Verfahren zum Bereitstellen einer Größe, die eine zu erwartende Maßabweichung an einem aus dem ersten Werkstück herzustellenden zweiten Werkstück charakterisiert
DE102023119967A1 (de) * 2023-07-27 2025-01-30 Homag Gmbh Zuführeinheit, Bearbeitungsmaschine und Verfahren zum Zuführen eines Werkstücks

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CA1114478A (fr) * 1979-09-20 1981-12-15 Leon H. Chasson Methode et dispositif automatique de transformation d'une piece par balayage optique calibre
DE3633089A1 (de) 1985-11-15 1987-05-21 Wtz Holzverarbeitende Ind Anordnung zur pruefung der kantenqualitaet bei plattenfoermigen halbzeugen
DE102014204695A1 (de) * 2014-03-13 2015-09-17 Holzma Plattenaufteiltechnik Gmbh Verfahren zum Betreiben einer Plattenbearbeitungsanlage
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
DE102018110942A1 (de) * 2018-05-07 2019-11-07 Homag Plattenaufteiltechnik Gmbh Werkstückbearbeitungsanlage, insbesondere eine Plattenaufteilsäge, sowie Verfahren zum Betreiben einer Werkstückbearbeitungsanlage und Steuerungseinrichtung

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DE102016001995A1 (de) 2016-02-19 2017-08-24 Siempelkamp Logistics & Service GmbH Vorrichtung und Verfahren zum Beschneiden und Vermessen einer Platte
DE202019100140U1 (de) 2019-01-11 2020-04-15 Dieffenbacher GmbH Maschinen- und Anlagenbau Vermessungsvorrichtung zur Vermessung von Werkstoffplatten und Anlage

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Publication number Priority date Publication date Assignee Title
CA1114478A (fr) * 1979-09-20 1981-12-15 Leon H. Chasson Methode et dispositif automatique de transformation d'une piece par balayage optique calibre
DE3633089A1 (de) 1985-11-15 1987-05-21 Wtz Holzverarbeitende Ind Anordnung zur pruefung der kantenqualitaet bei plattenfoermigen halbzeugen
DE102014204695A1 (de) * 2014-03-13 2015-09-17 Holzma Plattenaufteiltechnik Gmbh Verfahren zum Betreiben einer Plattenbearbeitungsanlage
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
DE102018110942A1 (de) * 2018-05-07 2019-11-07 Homag Plattenaufteiltechnik Gmbh Werkstückbearbeitungsanlage, insbesondere eine Plattenaufteilsäge, sowie Verfahren zum Betreiben einer Werkstückbearbeitungsanlage und Steuerungseinrichtung

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DE102020121446A1 (de) 2022-02-17
EP4196321A1 (fr) 2023-06-21

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