EP4008479B1 - Agencement de serrage de pièce et procédé d'usinage de pièce - Google Patents

Agencement de serrage de pièce et procédé d'usinage de pièce Download PDF

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Publication number
EP4008479B1
EP4008479B1 EP21211950.7A EP21211950A EP4008479B1 EP 4008479 B1 EP4008479 B1 EP 4008479B1 EP 21211950 A EP21211950 A EP 21211950A EP 4008479 B1 EP4008479 B1 EP 4008479B1
Authority
EP
European Patent Office
Prior art keywords
workpiece
clamping
lift
support
rail
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.)
Active
Application number
EP21211950.7A
Other languages
German (de)
English (en)
Other versions
EP4008479A1 (fr
EP4008479C0 (fr
Inventor
Detlef Lindenschmidt
Manuel Eisberg
Martin Ostermeier
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 Schelling Deutschland 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 Schelling Deutschland GmbH filed Critical IMA Schelling Deutschland GmbH
Publication of EP4008479A1 publication Critical patent/EP4008479A1/fr
Application granted granted Critical
Publication of EP4008479B1 publication Critical patent/EP4008479B1/fr
Publication of EP4008479C0 publication Critical patent/EP4008479C0/fr
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Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B5/00—Clamps
    • B25B5/06—Arrangements for positively actuating jaws
    • B25B5/061—Arrangements for positively actuating jaws with fluid drive
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B5/00—Clamps
    • B25B5/003—Combinations of clamps
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B5/00—Clamps
    • B25B5/06—Arrangements for positively actuating jaws
    • B25B5/067—C-clamps
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B5/00—Clamps
    • B25B5/16—Details, e.g. jaws, jaw attachments

Definitions

  • the invention relates to a workpiece clamping arrangement with which workpieces to be machined can be clamped and thereby fixed for the machining process.
  • a workpiece clamping arrangement according to the preamble of claim 1 is, for example WO2010/041285A1 known.
  • Workpiece clamping arrangements such as B. out DE 200 19 581 U1 or WO2010/041285A1 known, have clamping devices such as collets or vertical clamps with which the workpiece can be clamped. The clamped workpiece can then be processed without it slipping. Due to their dimensions, corresponding workpieces cannot always be manipulated by hand alone. This is because large or very long workpieces can rarely be held by a single person in such a way that they can be simultaneously brought into the receiving area of several clamping devices, some of which are meters apart from one another. Consequently, lifting rails are usually used that can be manipulated in height in order to place a workpiece on them and move it to the level of the clamping device.
  • the workpiece can then be pushed into the detection area of the clamping devices by moving it parallel to the lifting rails and thereby sliding along the lifting rails.
  • the lifting rails can be lowered so that they do not hinder any processing units.
  • the clamping devices mentioned, as well as the lifting rails themselves, are usually arranged on a base frame. There are usually a number of lifting rails parallel to each other and also a number of clamping devices, depending on the size and format of the workpiece to be processed.
  • the device described also has disadvantages, since it is basically only suitable for processing strip- or beam-shaped workpieces. After completion of the work process, these must be released from the clamping devices and then removed from the lifting rails perpendicular to their course or lifted out of the entire device. This is inconvenient and disadvantageous, as removing the workpiece from the lifting rails can be a critical factor in terms of time, especially when automating work processes.
  • the object of the present invention is therefore to further develop the workpiece clamping arrangement in such a way that it provides a remedy for the disadvantages described.
  • the at least one lifting rail can be adjusted to at least three positions, so-called lifting settings.
  • Setting means in particular that the at least one lifting rail can also be fixed in the three lifting settings so that it is not moved unintentionally.
  • These three stroke settings not only have the advantage that the corresponding lifting rail supports the clamping of the workpiece and brings the workpiece to a level at which it can easily be pushed horizontally between the clamping elements, with the workpiece support of the lifting rail underneath in a further setting the clamping device is arranged so that it does not stand in the way when machining the workpiece clamped in the clamping device.
  • the workpiece clamping arrangement according to the invention has at least a third stroke setting, which differs from the first and the second stroke setting is different and in which the workpiece support at least reaches the upper level of the clamping device or protrudes above it.
  • This setting can be used, among other things, to move the finished workpiece upwards after it has been removed from the clamping device and then move it over the at least one clamping device. In this case, the clamping devices used do not interfere with the further transport of the workpiece.
  • the workpiece support of the workpiece support section of the at least one clamping device is at the level of the top or above the top of the first clamping element.
  • this third stroke setting can also be used for something else: It is of course theoretically conceivable that different clamping devices are used on the workpiece clamping arrangement according to the invention. These clamping devices can also be interchangeable. For example, it may be necessary to replace a clamping device that is smaller in the vertical direction with a clamping device that is higher in the vertical direction.
  • the workpiece clamping arrangement comprises a further or alternative clamping device, with the workpiece support of the workpiece support section of the lifting rail being in the support plane or between in the third stroke setting Support level and first clamping element of this further alternative clamping device is located.
  • the third stroke setting can therefore be used both to be able to move the workpiece across the clamping devices on the lifting rails, but also to provide a higher clamping position for an alternative clamping device.
  • the lifting rail can be mounted on the bearing arrangement on which the clamping device is also mounted. However, it is also conceivable that the lifting rail is arranged on a bearing arrangement that is separate from it.
  • the vertical adjustment of the at least one lifting rail can basically be done in different ways. It is practical to use linear drives to adjust the lifting rail. In a preferred embodiment it is provided that the lifting rail can be adjusted between the lifting settings via a telescopic mechanism.
  • the workpiece clamping arrangement described above is preferably part of a woodworking device which has a machine bed and a workpiece clamping arrangement described above mounted thereon and a processing device for processing a workpiece held by the workpiece clamping arrangement.
  • the workpiece clamping arrangement comprises a plurality of lifting rails arranged one behind the other in a first direction perpendicular to the vertical direction. This enables workpieces to be placed safely, as long workpieces in the shape of panels, beams or squared timber can be securely clamped and removed from the woodworking device after processing.
  • the lifting rails are arranged parallel to one another and their respective main longitudinal extension directions run in a second direction perpendicular to the vertical direction.
  • Each lifting rail can be assigned a bearing arrangement that runs parallel to the respective lifting rail, wherein the bearing arrangement, which is preferably a suction cross member, can have a plurality of clamping devices, preferably vertical clamps, which are spaced apart from one another, in particular in the second direction.
  • the bearing arrangement which is preferably a suction cross member
  • such a bearing arrangement can be provided in the form of a suction crossbar and at the same time provide the storage for the associated lifting rail.
  • one lifting rail is mounted so that it can move in the vertical direction directly on a corresponding suction cross member, on which the clamping devices are then also arranged.
  • the at least one lifting rail is adjusted to the first stroke setting after the workpiece has been clamped.
  • the workpiece can be processed.
  • the lifting rail is moved out of the work area that is required to process the workpiece.
  • This working area can be the movement area of corresponding processing units such as drills, saws and the like.
  • the workpieces in question here are primarily those made of wood or wood substitutes, e.g. B. squared timber or plate-shaped workpieces. Consequently, the preferred use of the workpiece clamping arrangement according to the invention is in a wood processing machine.
  • workpieces made from other materials are also conceivable. It is also conceivable to use the workpiece clamping arrangement according to the invention in another machine in which no wood is processed.
  • step h the workpiece is moved on the at least one lifting rail.
  • the workpiece can be easily removed without any clamping devices disturbing the further transport of the workpiece.
  • the workpiece can be moved in particular on the existing lifting rails, the level of which is above the clamping devices in the third stroke setting.
  • the workpiece clamping arrangement according to the invention has a bearing arrangement 2 on which at least one clamping device 1 is arranged.
  • This clamping device 1 can, for example, be a vertical clamp, as in the example shown.
  • the clamping device 1 has an upper clamping element 1a and a lower clamping element 1b, which have opposing clamping surfaces between which a workpiece 4 can be clamped.
  • the clamping surface of the lower clamping element 1b defines a support plane E of the workpiece 4.
  • the two clamping elements can be moved relative to one another in the vertical direction Z to clamp or release the split. This is preferably done either by using a vacuum or by using compressed air, both of which can be introduced into the clamping device 1 via the bearing arrangement to actuate the same.
  • the workpiece clamping arrangement has at least one lifting rail 3, which includes at least one workpiece support 3a on which a workpiece 4 can be placed and lifted.
  • the workpiece support 3a is located below the support level E.
  • the workpiece 4 is clamped here in the clamping device 1.
  • the lifting rail is preferably attached to the bearing arrangement 2, but can also be stored separately from it.
  • the lifting rail 3 can, for example, have a telescopic extension with a plurality of telescopic elements 3b, 3c, 3d. It is of course also possible to adjust the lifting rail 3 in a different way in the vertical direction Z.
  • the workpiece clamping arrangement according to the invention is also designed to move the lifting rail 3 into at least one third lifting setting that is different from the first two lifting settings.
  • This is in Figure 3 shown.
  • the workpiece support 3a lies with its workpiece support surface in the vertical direction Z above the top of the clamping device 1.
  • This third stroke setting has several advantages.
  • the workpiece 4 can now be moved in the horizontal direction X on the lifting rail 3 and over the clamping device 1.
  • this third stroke setting or possibly other stroke settings, to insert or replace clamping devices of different vertical heights.
  • the clamping device does not meet the requirements in Figure 3 shown height in direction Z, but is, for example, 10 cm higher. With the third stroke setting, such a clamping device can then be approached by moving the workpiece support 3a back to the corresponding support level E.
  • the woodworking device 5 shown has a machine bed 7 on which the workpiece clamping arrangement is mounted.
  • a processing device 6, on which different processing units are mounted, is movable relative to the machine bed 7, at least parallel to the first direction X (arrow P2).
  • a lifting rail 3 is attached to each bearing arrangement 2 in a height-adjustable manner in the vertical direction Z in the manner described above.
  • the individual bearing arrangements 2 can preferably be moved parallel to the first direction X (see arrow P1) and thus adapted to the workpiece to be clamped (not shown here).
  • a direction Y which preferably runs perpendicular to the direction

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Jigs For Machine Tools (AREA)

Claims (13)

  1. Agencement de serrage de pièces pour tendre des pièces (4), comportant un agencement de support (2) sur lequel est agencé au moins un dispositif de serrage (1), surtout un tendeur vertical, dans lequel le dispositif de serrage (1) comporte un premier élément de serrage, en particulier supérieur (1a), et un deuxième élément de serrage, en particulier inférieur (1b), dans lequel le deuxième élément de serrage (1b) comporte une surface d'appui de pièce définissant un plan de pose (E), dans lequel les éléments de serrage (1a, 1b) sont opposés les uns aux autres et peuvent être déplacés les uns par rapport aux autres pour serrer une pièce (4), au moins un rail de levage (3), qui peut être levé et abaissé par rapport au plan de pose (E) parallèlement à la direction verticale (Z),
    dans lequel le rail de levage (3) peut être fixé dans au moins trois réglages de course, à savoir
    i) un premier réglage de course, dans lequel l'appui de pièce de la section de l'appui de pièce (3a) se trouve dans ou en dessous du plan de pose (E),
    ii) un deuxième réglage de course, dans lequel l'appui de pièce de la section de l'appui de pièce (3a) se trouve dans le plan de pose (E) ou entre le plan de pose (E) et le premier élément de serrage (1) et
    iii) un troisième réglage de course différent du premier ou du deuxième réglage de course,
    caractérisé en ce
    que le rail de levage (3) comporte une section de l'appui de pièce (3a) avec un appui de pièce.
  2. Agencement de serrage de pièces selon la revendication 1,
    caractérisé en ce
    que, dans le troisième réglage de course, l'appui de pièce de la section de l'appui de pièce (3a) de l'au moins un dispositif de serrage (1) se trouve au niveau de la face supérieure ou au dessus de la face supérieure du premier élément de serrage (1a), et/ou l'agencement de serrage de pièces comporte un autre dispositif de serrage ou un dispositif de serrage (1) alternatif, dans lequel, dans le troisième réglage de course, l'appui de pièce de la section de l'appui de pièce (3a) du rail de levage se trouve dans le plan de pose (E) ou entre le plan de pose (E) et le premier élément de serrage (1) de cet autre dispositif de serrage (1) alternatif.
  3. Agencement de serrage de pièces selon la revendication 1 ou 2,
    caractérisé en ce
    que le rail de levage (3) est logé à l'agencement de support (2).
  4. Agencement de serrage de pièces selon l'une quelconque des revendications précédentes,
    caractérisé en ce
    que le rail de levage (3) est réglable entre les réglages de course par l'intermédiaire d'un mécanisme télescopique (3a, 3b, 3c, 3d).
  5. Dispositif d'usinage du bois (5) comportant un banc de machine (7) et un agencement de serrage de pièces y monté selon l'une quelconque des revendications précédentes ainsi qu'un dispositif d'usinage (6) pour usiner une pièce (4) tenu par l'agencement de serrage de pièces.
  6. Dispositif d'usinage du bois (5) selon la revendication 5,
    caractérisé en ce
    que l'agencement de serrage de pièces comporte une pluralité de rails de levage (3) agencés les uns derrière les autres dans une première direction (X) perpendiculaire à la direction verticale (Z).
  7. Dispositif d'usinage du bois (5) selon la revendication 6,
    caractérisé en ce
    que les rails de levage (3) s'étendent parallèlement les uns aux autres et leurs directions d'extension longitudinale principale s'étendent dans une deuxième direction (Y) perpendiculaire à la direction verticale (Z).
  8. Dispositif d'usinage du bois (5) selon la revendication 6 ou 7,
    caractérisé en ce
    que chaque rail de levage (3) est associé à un agencement de support (2) s'étendant parallèlement au rail de levage respectif, dans lequel l'agencement de support (2) comporte une pluralité de dispositifs de serrage espacés les uns des autres, surtout dans la deuxième direction (Y).
  9. Procédé pour l'usinage de pièces en utilisant un (des) agencement(s) de serrage de pièces selon l'une quelconque des revendications 1 à 4 ou un dispositif d'usinage du bois selon l'une quelconque des revendications 6 à 8, comportant les étapes suivantes:
    a. fourniture d'une pièce (4),
    b. pose de la pièce sur la surface d'appui de pièce de l'au moins un rail de levage (3),
    c. réglage de l'au moins un rail de levage (3) au deuxième réglage de course,
    d. transfert de la pièce (4) au plan de pose (E) de l'au moins un dispositif de serrage (1),
    e. serrage de la pièce (4) entre les éléments de serrage (1a, 1b) de l'au moins un dispositif de serrage (1).
  10. Procédé selon la revendication 9,
    caractérisé en ce
    que l'au moins un rail de levage (3), après le serrage de la pièce (4), est ajusté au premier réglage de course.
  11. Procédé selon la revendication 9,
    caractérisé en ce
    que la pièce, après l'ajustage de l'au moins un rail de levage (3), est usiné au premier réglage de course.
  12. Procédé pour prélever des pièces d'un agencement de serrage de pièces selon l'une quelconque des revendications 1 à 4, surtout après la fin d'un procédé selon l'une quelconque des revendications 9 à 11, comportant les étapes suivantes:
    f. réglage de l'au moins un rail de levage (3) au deuxième réglage de course,
    g. prélèvement de la pièce (4) de l'au moins un dispositif de serrage (1) par le déplacement de la pièce (4) et/ou du dispositif de serrage (1) du plan de pose (E) à la section de l'appui de pièce (3a) de l'au moins un rail de levage (3).
    h. ajustage ultérieur de l'au moins un rail de levage (3) au troisième réglage de course.
  13. Procédé selon la revendication 12,
    caractérisé en ce
    qu'après l'étape h., la pièce (4) est déplacée sur l'au moins un rail de levage (3).
EP21211950.7A 2020-12-07 2021-12-02 Agencement de serrage de pièce et procédé d'usinage de pièce Active EP4008479B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102020132392.1A DE102020132392A1 (de) 2020-12-07 2020-12-07 Werkstückspannanordnung sowie Verfahren zum Bearbeiten von Werkstücken

Publications (3)

Publication Number Publication Date
EP4008479A1 EP4008479A1 (fr) 2022-06-08
EP4008479B1 true EP4008479B1 (fr) 2024-03-06
EP4008479C0 EP4008479C0 (fr) 2024-03-06

Family

ID=78821431

Family Applications (1)

Application Number Title Priority Date Filing Date
EP21211950.7A Active EP4008479B1 (fr) 2020-12-07 2021-12-02 Agencement de serrage de pièce et procédé d'usinage de pièce

Country Status (2)

Country Link
EP (1) EP4008479B1 (fr)
DE (1) DE102020132392A1 (fr)

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE20019581U1 (de) 2000-11-17 2001-02-08 Mkm Internat Gmbh Maschb Holzbearbeitungsmaschine
DE202007013386U1 (de) * 2007-09-25 2009-02-12 Homag Holzbearbeitungssysteme Ag Vorrichtung zum Einspannen und Halten von Werkstücken
WO2010041285A1 (fr) * 2008-10-10 2010-04-15 Working Process S.R.L. Centre de travail
DE102015212541A1 (de) 2014-09-22 2016-03-24 Homag Holzbearbeitungssysteme Gmbh Bearbeitungsvorrichtung
DE102015218814A1 (de) 2015-09-29 2017-03-30 Homag Gmbh Bearbeitungsvorrichtung
DE102019104836A1 (de) 2019-02-26 2020-08-27 Michael Rath Spannvorrichtung für eine Werkzeugmaschine, insbesondere ein Bearbeitungszentrum

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Publication number Publication date
EP4008479A1 (fr) 2022-06-08
EP4008479C0 (fr) 2024-03-06
DE102020132392A1 (de) 2022-06-09

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