EP2792460B1 - Dispositif et procédé destinés à la finition des chants d'une pièce à usiner - Google Patents

Dispositif et procédé destinés à la finition des chants d'une pièce à usiner Download PDF

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Publication number
EP2792460B1
EP2792460B1 EP14165110.9A EP14165110A EP2792460B1 EP 2792460 B1 EP2792460 B1 EP 2792460B1 EP 14165110 A EP14165110 A EP 14165110A EP 2792460 B1 EP2792460 B1 EP 2792460B1
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EP
European Patent Office
Prior art keywords
workpiece
machining
edge
edges
machined
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EP14165110.9A
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German (de)
English (en)
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EP2792460A1 (fr
Inventor
Wilhelm Kalmbach
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Homag GmbH
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Homag GmbH
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    • 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

Definitions

  • the present invention relates to a device according to the preamble of claim 1 and a method for edging a workpiece, in particular for edging a workpiece surface using a device according to at least claim 1.
  • the applicant is an apparatus and a method for edge processing a narrow side of the workpiece is known in which the longitudinal edges are processed continuously with a milling unit and the corners with a CNC-controlled Formfräsaggregat having four, two or a tool. Further, the applicant is known an apparatus and a method for edge processing a narrow side of the workpiece, in which the Leksskanten- and corner machining is performed with a CNC-controlled Formfräsaggregat, the Formfräsaggregat has four or two tools.
  • the invention is based on the idea that the machine construction space, the susceptibility to faults and the system costs of the devices and methods of the type mentioned above are determined primarily by the number of system assemblies or components and in particular by the number of processing tools.
  • the known devices and methods have a large machine space and a high system complexity with a correspondingly increased susceptibility to failure and high system costs, especially because they have at least two processing units, each with at least one tool or comprise a CNC-controlled processing unit with at least one tool.
  • a reference device is required for setting a reference position for the positioning positioning of the machining tool of the post-processing unit to a work piece section that is being processed.
  • the post-processing unit and the reference device must be designed so that they can be processed with them two workpiece edges with a different edge overhang to the respective adjacent workpiece surface.
  • the present invention is also suitable to be able to process edges with the same edge overhang, wherein the term edge overhang in the frame this invention also fall flush edges.
  • Such a device according to the invention leads to a smaller machine space and a lower machine complexity with a correspondingly lower susceptibility to interference and lower system costs and lower energy costs.
  • the reference device comprises a measuring device for measuring a workpiece dimension and a control device for controlling a delivery of the first machining tool to a workpiece section being processed, taking into account the measurement of the measuring device.
  • the reference device comprises a feeler, which in the present invention is in particular a sensing roller.
  • a predetermined Zustellposition ist of the first machining tool to the workpiece section located in progress can be achieved with the sensing roller.
  • the feeler means offers the advantage that it allows a relatively inexpensive, but accurate, sostechnikmaschine ein to the work in progress workpiece section.
  • the feeler is adjustable so that the feed position of the machining tool of the post-processing unit is adjustable to the workpiece section being processed.
  • This embodiment makes it possible to adjust the positioning position via the adjustability of the feeler of the machining tool can be changed from one edge to the next edge to the workpiece section being processed. In this way, edges can thus be finished with a different edge overhang to the respective adjacent workpiece surface.
  • the Taststoffver ein preferably via a spindle adjustment and / or a C-axis adjustment and / or an eccentric adjustment and / or Taststofftechnik carefullymesser adjustment and / or a pneumatic cylinder adjustment and / or an electrical linear actuator adjustment.
  • Such a preferred embodiment leads to the advantage that can be processed with only one reference means two edges with a different edge overhang to the respective adjacent workpiece surface. This embodiment This leads to a particularly low machine complexity and is thus particularly cost-effective and low maintenance.
  • the device further comprises a further processing unit with a second processing tool for processing a workpiece edge of the workpiece.
  • this embodiment comprises a pressing device for pressing the workpiece to a reference means.
  • a machining of the edge which bears against the reference means, is possible with a constant vertical tool position. This is due to the fact that the pressing to a certain extent eliminates unevenness at the workpiece edge abutting the reference means and thus leads to a workpiece edge having a constant normal distance to the reference means along the reference means.
  • the further processing unit which can be configured without Taststoff, as with the other processing unit parallel to the post-processing unit, a further workpiece edge can be edited.
  • the travel range of the post-processing unit can be reduced by this preferred embodiment which results in a smaller and less expensive machine structure.
  • the cycle performance of the machine is increased because the feed increases and the workpiece gap is reduced.
  • the processing devices of the preferred embodiments are used to edit edges of an edge band provided with a narrow side of a plate-shaped workpiece, wherein the edge band is glued to the narrow surface with a supernatant or otherwise provided.
  • the edge band has an adhesive or functional layer which unfolds adhesive properties due to energy input (for example heating or laser radiation) and via which the edge band is joined to the workpiece narrow side of the workpiece.
  • the workpieces used consist at least in sections of wood, wood materials, plastic or the like, as used for example in the field of furniture and component industry.
  • Fig. 1 shows a side view of an embodiment of an edge processing device 1 according to the present invention.
  • the edge processing device 1 comprises a conveyor 3, a post-processing unit 4, a reference device 5 and a pressing device.
  • the post-processing unit 4 comprises a milling tool 7, which is driven by a drive, not shown in detail.
  • the milling tool 7 is over a Tool carriage 6 in a direction FV, ie perpendicular to a workpiece feed direction VR, slidably mounted on a support means 8.
  • the support device 8 is fixedly mounted on an axial slide 9, which is movable relative to the conveyor 3 via a guide device in the feed direction VR.
  • the finishing unit 4 is formed in this preferred embodiment as Formfräsaggregat with a sensing roller 10.
  • the follower roller 10 is provided on the carriage 6 so that it defines a feed position of the milling tool 7 to the workpiece section in progress when passing over a workpiece surface.
  • the follower roller 10 of the post-processing unit 4 is designed such that, when used, the milling tool 7 mills the workpiece edge being machined flush with the workpiece surface, as shown in FIG Fig. 4a is shown.
  • the reference device has a measuring device 5 for measuring the workpiece thickness of a workpiece 2, which is arranged upstream of the post-processing unit 4 in the feed direction VR.
  • a measuring device 5 for measuring the workpiece thickness of a workpiece 2, which is arranged upstream of the post-processing unit 4 in the feed direction VR.
  • the present sensor load measuring system comprises a touch roller 11, which is designed so that it follows the surface contour of the workpiece 2, when it is moved in the feed direction VR relative to the sensing roller. In a surface contour change, the sensing roller 11 moves vertically in the direction FV accordingly. Since the workpiece 2 is pressed with the pressing device 6 to the conveyor 3, the vertical movement of the follower roller 11 corresponds to the workpiece thickness change.
  • the processing device 1 further comprises a control device, not shown, to which the measurement data of the Measuring device 5 are transmitted.
  • the control device is set up in such a way that, based on the measurement data, it can control the position of the milling tool 7 of the post-processing unit 4 during edge processing in the vertical direction FV in such a way that a desired milling tool delivery to the workpiece section to be machined can be achieved.
  • the conveyor 3 is configured in the present embodiment as a conveyor chain, although a variety of other configurations are possible.
  • the pressing device has, for example, belts and / or rollers.
  • the workpiece 2 is moved via the conveyor chain 3 in a conveying direction VR and pressed on the conveyor chain 3 during the entire processing process via the pressing device 6.
  • the workpiece passes in a first step, the sensing roller 11 of the measuring device 5.
  • the workpiece thickness of the workpiece 2 in sections or along the entire workpiece edge measured and the measurement data are transmitted to the control device, not shown.
  • a first edge-processing step the axial slide 9 together with the support device 8 and the tool carriage 6 travel with the workpiece 2 in such a way that no relative movement in the feed direction VR between the workpiece 2 and the axial slide 9 occurs.
  • a first workpiece edge K1 see Fig. 3
  • Milled using the sensing roller 10 flush with the workpiece 2 by the milling tool 7 is moved in the vertical direction FV on the tool carriage 6 relative to the support means 8 and the workpiece 2.
  • the axial slide 9 against the Feed direction of the workpiece VR moved and processed a second workpiece edge K2, see Fig. 3 , in such a form that a supernatant d, see Fig.
  • a third step the post-processing unit 4 moves again in the feed direction VR of the workpiece 2, so that in this direction no relative movement between the axial slide 9 and the workpiece 2 is formed.
  • Milled using the sensing roller 10 flush with the surface of the workpiece 2 by the milling tool 7 is moved in the vertical direction FV relative to the support means 8 and the workpiece 2.
  • the post-processing unit 4 is moved faster in the feed direction VR than the workpiece 2, so that a relative movement between the axial slide 9 and the workpiece 2 is formed.
  • a fourth edge K4 see Fig. 3 , the workpiece 2 processed with the milling tool 7.
  • this fourth edge K4 is also processed with a constant projection d, in this case 0.1 mm, of the edge upper edge to the workpiece surface.
  • the second preferred embodiment is based on the first preferred embodiment. In contrast, it has a further processing unit 15 with a second milling tool 16.
  • the fourth workpiece edge K4 is processed with the further processing unit 15 and not with the post-processing unit 4.
  • the further processing unit 15 is connected via a further support means 17 fixed to the guide device, so that it is not movable in the feed direction VR.
  • the processing of the fourth workpiece edge K4 is possible with a constant vertical position of the milling tool and so the milling tool 16 of the further processing unit 15 is not adjusted during edge processing in the vertical direction FV. Instead, the processing of the edge K4 by the workpiece 2 is moved over the conveyor chain 3 relative to the milling tool 16 of the further processing unit 15.
  • this third embodiment has a smaller machine space and more power than the first and second embodiments on.
  • the further processing unit 15 has a feeler, in particular a feeler roller, which allows a predetermined positioning positioning of the second Frästechniksmaschines 16 to the work in progress workpiece section.
  • the workpiece edge machining is done in a clockwise direction.
  • first the edge K1, then the edge K4 and then the edge K3 are processed with the finishing unit 4.
  • the edge K2 is in a subsequent processing step with the second processing tool 16 of the further processing unit 15th edited with the help of the feeler of the other processing unit.

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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Milling, Drilling, And Turning Of Wood (AREA)
  • Milling Processes (AREA)
  • Automatic Control Of Machine Tools (AREA)

Claims (14)

  1. Dispositif pour l'usinage de chant d'une pièce (2), en particulier pour l'usinage de chant d'une surface de pièce et de manière particulièrement préférée d'une tranche de pièce, muni d'une alaise de chant, d'une pièce, la pièce (2) étant constituée de manière préférée au moins par endroits de bois, de matériaux dérivés du bois, de plastique ou similaire, comprenant :
    un module de post-usinage (4) pourvu d'un premier outil d'usinage (7), en particulier d'un outil de fraisage, pour usiner un chant de pièce ;
    un système de référence pour fixer une position de référence pour le positionnement d'approche du premier outil d'usinage (7) par rapport à une partie de pièce se trouvant en cours d'usinage ;
    le module de post-usinage (4) et le système de référence étant mis au point pour pouvoir usiner au moins deux chants de la pièce (2) avec un débord de chant différent par rapport à la surface de pièce respectivement adjacente ;
    caractérisé en ce que
    le système de référence présente un système de mesure (5) pour mesurer une épaisseur d'usine et un système de commande pour commander une approche du premier outil d'usinage (7) vers une partie de pièce se trouvant en cours d'usinage en tenant compte de la mesure du système de mesure (5).
  2. Dispositif selon la revendication 1, caractérisé en ce que le système de référence présente un moyen palpeur (10), en particulier un rouleau palpeur, au moyen duquel une position d'approche prédéterminée du premier outil d'usinage (7) par rapport à la partie de pièce se trouvant en cours d'usinage peut être atteinte.
  3. Dispositif selon la revendication 2, caractérisé en ce que le moyen palpeur (10) peut être ajusté de telle sorte que la position d'approche du premier outil d'usinage (7) par rapport à la partie de pièce se trouvant en cours d'usinage est modifiable, l'ajustement de moyen palpeur s'effectuant de manière préférée par l'intermédiaire d'un ajustement de vis sans fin et/ou d'un ajustement d'axe C et/ou d'un ajustement d'excentrique et/ou d'un ajustement de diamètre de moyen palpeur et/ou d'un ajustement de cylindre pneumatique et/ou d'un ajustement d'actionneur linéaire électrique.
  4. Dispositif selon l'une quelconque des revendications précédentes, caractérisé en ce que le dispositif présente en outre un autre module d'usinage (15) pourvu d'un deuxième outil d'usinage (16), en particulier d'un outil de fraisage, et de manière préférée d'un moyen palpeur pour usiner un chant de la pièce (2), et un système de poussée (6) pour pousser la pièce (2) contre un moyen de référence (3).
  5. Dispositif selon l'une quelconque des revendications précédentes, caractérisé en ce que le module de post-usinage (4) est un module à commande numérique par ordinateur (CNC).
  6. Dispositif selon l'une quelconque des revendications précédentes, caractérisé en ce que le dispositif présente un système de transport (3), en particulier un système de transport continu, pour entraîner un déplacement relatif entre le module de post-usinage (4) et la pièce (2).
  7. Procédé pour l'usinage de chant d'une pièce (2), en particulier pour l'usinage de chant d'une surface de pièce et de manière particulièrement préférée d'une tranche de pièce, muni d'une alaise de chant, d'une pièce (2), la pièce (2) étant constituée de manière préférée au moins par endroits de bois, de matériaux dérivés de bois, de plastique ou similaire, en utilisant un dispositif selon l'une quelconque des revendications 1 à 6, comprenant les étapes suivantes :
    la préparation d'une pièce (2) à usiner;
    l'usinage d'un premier, deuxième et troisième chant de pièce avec le module de post-usinage (4) ;
    l'usinage d'un quatrième chant de pièce.
  8. Procédé selon la revendication 7, le procédé comprenant en outre :
    la mesure d'une épaisseur de pièce avec le système de mesure (5) ;
    la commande de l'approche du premier outil d'usinage (7) vers une partie de pièce se trouvant en cours d'usinage avec le système de commande en tenant compte de la mesure du système de mesure (5).
  9. Procédé selon la revendication 8 en utilisant un dispositif selon l'une quelconque des revendications 2 à 6, caractérisé en ce que le moyen palpeur (10) du système de référence est utilisé pour l'usinage du premier et du troisième chant de pièce, et en ce que le système de mesure (5) du système de référence est utilisé pour l'usinage du deuxième chant de pièce.
  10. Procédé selon l'une quelconque des revendications 7 à 9, caractérisé en ce que le quatrième chant de pièce est usiné avec le module de post-usinage (4).
  11. Procédé selon l'une quelconque des revendications 7 à 9 en utilisant un dispositif selon l'une quelconque des revendications 4 à 6, caractérisé en ce que la pièce est poussée contre un moyen de référence par le système de poussée (6), et en ce que le quatrième chant de pièce, qui constitue le côté inférieur de pièce, est usiné avec l'autre module d'usinage (15).
  12. Procédé selon l'une quelconque des revendications 7 à 9 en utilisant un dispositif selon l'une quelconque des revendications 4 à 6, caractérisé en ce que le quatrième chant de pièce, qui constitue le côté supérieur de pièce, est usiné avec l'autre module d'usinage (15), qui présente un moyen palpeur.
  13. Procédé selon l'une quelconque des revendications 7 à 10 en utilisant un dispositif selon l'une quelconque des revendications 2 à 6, caractérisé en ce que le moyen palpeur (10) du système de référence est utilisé pour l'usinage de la totalité des quatre chants de pièce, et en ce qu'il est ajusté entre un usinage du premier et du deuxième chant de pièce de telle sorte que les deux chants de pièce sont usinés avec une approche d'outil différente vers la partie de pièce se trouvant respectivement en cours d'usinage.
  14. Procédé selon l'une quelconque des revendications 7 à 13, caractérisé en ce que la pièce (2) est usinée dans le procédé continu, et en ce que le module de post-usinage (4) se déplace conjointement avec la pièce (2) au cours des usinages du premier et du troisième chant de pièce.
EP14165110.9A 2013-04-19 2014-04-17 Dispositif et procédé destinés à la finition des chants d'une pièce à usiner Active EP2792460B1 (fr)

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Application Number Priority Date Filing Date Title
DE102013207107.8A DE102013207107A1 (de) 2013-04-19 2013-04-19 Vorrichtung und Verfahren zum Kantenbearbeiten eines Werkstücks

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EP2792460A1 EP2792460A1 (fr) 2014-10-22
EP2792460B1 true EP2792460B1 (fr) 2017-02-15

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DE (1) DE102013207107A1 (fr)
ES (1) ES2622728T3 (fr)

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EP2792460A1 (fr) 2014-10-22
DE102013207107A1 (de) 2014-11-06
ES2622728T3 (es) 2017-07-07

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