EP3575053A1 - Procédé de manutention des pièces à usiner en forme de plaque - Google Patents

Procédé de manutention des pièces à usiner en forme de plaque Download PDF

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Publication number
EP3575053A1
EP3575053A1 EP19174254.3A EP19174254A EP3575053A1 EP 3575053 A1 EP3575053 A1 EP 3575053A1 EP 19174254 A EP19174254 A EP 19174254A EP 3575053 A1 EP3575053 A1 EP 3575053A1
Authority
EP
European Patent Office
Prior art keywords
workpiece
transmitted
clamping jaws
positions
machine control
Prior art date
Legal status (The legal status 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 status listed.)
Withdrawn
Application number
EP19174254.3A
Other languages
German (de)
English (en)
Inventor
Ulrich Hielscher
Uwe Seifert
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.)
IMA Schelling Deutschland GmbH
Original Assignee
IMA Klessmann Holzbearbeitungssysteme GmbH
IMA Klessmann 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 IMA Klessmann Holzbearbeitungssysteme GmbH, IMA Klessmann GmbH filed Critical IMA Klessmann Holzbearbeitungssysteme GmbH
Publication of EP3575053A1 publication Critical patent/EP3575053A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27M—WORKING OF WOOD NOT PROVIDED FOR IN SUBCLASSES B27B - B27L; MANUFACTURE OF SPECIFIC WOODEN ARTICLES
    • B27M1/00—Working of wood not provided for in subclasses B27B - B27L, e.g. by stretching
    • B27M1/08—Working of wood not provided for in subclasses B27B - B27L, e.g. by stretching by multi-step processes

Definitions

  • the invention relates to a method for handling plate-shaped workpieces according to the preamble of claim 1.
  • Plate-shaped workpieces made of wood or wood substitutes are usually fed via a Platteneinschubsystem the wood processing machine prior to processing in a wood processing machine.
  • the slide-in system has in this case workpiece detection devices which detect a relevant workpiece in the form of grippers or clamping elements and insert them into the woodworking machine in a defined orientation.
  • the workpieces to be machined are usually pre-cut in a specific format in the slide-in system.
  • the geometrical dimensions present at the workpiece do not correspond to the dimensions that the workpiece should have after machining.
  • the woodworking machine therefore has the task of formatting the workpieces, in particular the narrow sides of the same. This is usually done via a milling operation at the beginning of the woodworking machine immediately after insertion.
  • the workpieces - if, for example, a rectangular workpiece is present - are not exactly rectangular, so that it may be necessary to make the workpiece only at right angles by formatting in the woodworking machine.
  • the woodworking machine In order for the woodworking machine to make appropriate formatting, the actual Of course, the geometric shape of the workpiece will be known in advance.
  • the prior art usually provides elaborate measuring devices that, for example, supported by a camera system, measure which shape the incoming workpiece has. The disadvantage is that such measuring devices are of course additionally to install and ultimately complicate the process.
  • the present invention is therefore based on the object to simplify a method for handling plate-shaped workpieces of the type mentioned.
  • a wood processing machine and a plate insertion system connected upstream thereof are used.
  • the plate insertion system the plate-shaped workpieces are inserted into the wood processing machine.
  • a workpiece is detected via a plurality of workpiece detection devices and moved by means of the same over a workpiece table parallel to the workpiece support of the workpiece table in a direction of insertion.
  • the workpiece detection devices used are designed as clamping jaws, each with two contact areas, which are applied to a respective narrow side of the plate-shaped workpiece.
  • the jaws are displaceable in the insertion direction via drives stored, wherein at least one jaw is additionally displaceable transversely in a transverse direction, in particular perpendicular to the insertion direction and parallel to the workpiece tray.
  • the positions of the jaws are detected by an evaluation device. Geometric properties of the workpiece are then determined from the positions.
  • the positions of the jaws can be read and used as an equivalent to the geometry of the held workpiece.
  • the dimensions of the workpiece or the individual angles of the corners of the workpiece can be determined from the positions of the clamping jaws.
  • the jaws when the jaws have mutually angled contact surfaces, which are designed to rest on two adjacent narrow sides of the plate-shaped workpiece, the jaws can be positioned at the corners of the workpiece.
  • the positions of the clamping jaws then provide a geometrically-mathematical sense of at least similar or even congruent image of the held workpiece. From the positions of the jaws so the machine control can derive information for further processing of the workpiece.
  • the machine control system now has a whole range of different options at its disposal.
  • a plurality of geometric properties of the workpiece can be determined.
  • the corner angles and / or narrow side lengths formed by adjacent narrow sides are determined as geometric properties.
  • Another option provides that the transmitted geometrical properties of the workpiece are transmitted from the machine control system to other machines and / or controllers. Depending on how the workpiece is subsequently processed by the wood processing machine, it may be useful to communicate information about the incoming workpiece in advance, for example, to a processing unit.
  • the workpiece itself can also be provided with the corresponding determined geometric properties.
  • the transmitted geometric properties of the workpiece are attached to the workpiece, wherein the properties are in particular printed thereon and / or stored on a memory element, in particular an RFID tag, attached or to be attached to the workpiece.
  • the transmitted geometric properties of the workpiece can also be attached to the workpiece as a barcode and / or QR code. Again, this can be done either by directly printing the workpiece or by printing a label with the appropriate code and then or previously dispensing the label onto the workpiece.
  • each jaw 10 has its own drive 30, 31, in particular servo drive, with which the jaw can be moved in at least one direction.
  • the direction X shows the insertion direction, in which the workpiece 20 can be inserted into the direction indicated by the reference numeral 2 wood processing machine.
  • a chain belt 3 which extends in the example shown from the workpiece table 1 to the woodworking machine 2.
  • the jaws 10 are arranged on portals 40, 41,42. However, the jaws need not be arranged on portals.
  • Each of the portals shown is arranged displaceably in the insertion direction X, the jaws 10 positioned thereon in turn are displaceable on the portal in the direction Y transversely to the insertion direction and parallel to the workpiece table 1 or its depositing surface.
  • the clamping jaws 10 can be displaced transversely both in the insertion direction X and in the direction Y.
  • a support 50 is disposed on which at least one, preferably two, more jaws 10 are located, which move on the support 50 in the insertion direction X. to let.
  • the support 50 itself can optionally be provided displaceably in the direction Y, as indicated by the arrow P1.
  • a workpiece 20 is now stored on the workpiece table 1, then a plurality of jaws 10 is brought to the workpiece 20 to the plant. This is preferably done on the workpiece corners, as exemplified in FIG. 1B is shown.
  • four clamping jaws 10.1, 10.2, 10.3, 10.4 are preferably applied to the four corners of the workpiece.
  • the jaws 10.1, 10.2, 10.3, 10.4 have two abutment surfaces or abutment sections which are angled relative to one another and which are suitable for being applied over corners to the two adjoining narrow sides of the workpiece 20.
  • less than four jaws 10.1, 10.2, 10.3, 10.4 can also be used in the example shown.
  • the positions of the clamping jaws can be determined via the machine control.
  • the drives of the jaws and / or the portals, as far as such are used servo drives, their investment positions can be read by the machine control.
  • Each jaw therefore receives a defined coordinate point X1, Y1 or X2, Y2 or X3, Y3 or X4, Y4 on the workpiece table 1. This is schematically in Figure 1C indicated.
  • the machine control already receives the information about whether the corner angle between two adjacent narrow sides, for example, correspond to a predetermined angle or not.
  • the machine controller can then adjust the orientation of the jaws accordingly so that the workpiece 20 can be inserted at a certain angle in the woodworking machine.
  • the machine control can then either forward the corresponding information to machining units present in the woodworking machine 2 or adjust the clamping jaws accordingly, so that a desired insertion angle is set.
  • machining units present in the woodworking machine 2
  • clamping jaws accordingly, so that a desired insertion angle is set.

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Milling, Drilling, And Turning Of Wood (AREA)
EP19174254.3A 2018-05-28 2019-05-14 Procédé de manutention des pièces à usiner en forme de plaque Withdrawn EP3575053A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102018112677.8A DE102018112677A1 (de) 2018-05-28 2018-05-28 Verfahren zum Handhaben von plattenförmigen Werkstücken

Publications (1)

Publication Number Publication Date
EP3575053A1 true EP3575053A1 (fr) 2019-12-04

Family

ID=66624982

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19174254.3A Withdrawn EP3575053A1 (fr) 2018-05-28 2019-05-14 Procédé de manutention des pièces à usiner en forme de plaque

Country Status (2)

Country Link
EP (1) EP3575053A1 (fr)
DE (1) DE102018112677A1 (fr)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2574422A1 (fr) * 2011-09-27 2013-04-03 Uwe Stuczys Dispositif et procédé destinés au transport et au traitement de pièces à usiner
WO2018062169A1 (fr) * 2016-09-30 2018-04-05 日本電産リード株式会社 Dispositif de mesure de longueur

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2574422A1 (fr) * 2011-09-27 2013-04-03 Uwe Stuczys Dispositif et procédé destinés au transport et au traitement de pièces à usiner
WO2018062169A1 (fr) * 2016-09-30 2018-04-05 日本電産リード株式会社 Dispositif de mesure de longueur

Also Published As

Publication number Publication date
DE102018112677A1 (de) 2019-11-28

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