EP4008479A1 - 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
EP4008479A1
EP4008479A1 EP21211950.7A EP21211950A EP4008479A1 EP 4008479 A1 EP4008479 A1 EP 4008479A1 EP 21211950 A EP21211950 A EP 21211950A EP 4008479 A1 EP4008479 A1 EP 4008479A1
Authority
EP
European Patent Office
Prior art keywords
workpiece
clamping
lifting
lifting rail
support
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.)
Granted
Application number
EP21211950.7A
Other languages
German (de)
English (en)
Other versions
EP4008479C0 (fr
EP4008479B1 (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 EP4008479C0 publication Critical patent/EP4008479C0/fr
Publication of EP4008479B1 publication Critical patent/EP4008479B1/fr
Active legal-status Critical Current
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.
  • Corresponding workpiece clamping arrangements as they are e.g. e.g DE 200 19 581 U1 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. It is not always possible to manipulate the dimensions of the corresponding workpieces by hand alone. This is due to the fact that large or very long workpieces can rarely be held by a single person in such a way that they can be brought simultaneously into the receiving area of several clamping devices that are sometimes meters apart from one another. Consequently, lifting rails are usually used, the height of which can be manipulated in order to place a workpiece on them and to move them to the level of the clamping device.
  • the workpiece can then be pushed into the detection area of the clamping devices by being moved parallel to the lifting rails and thereby sliding along the lifting rails.
  • the lifting rails can be lowered so that they do not obstruct any processing units.
  • the clamping devices mentioned like the lifting rails themselves, are usually arranged on a subframe. There are usually a number of lifting rails parallel to one another and also a number of clamping devices, depending on the size and format of the workpiece to be machined.
  • the device described also has disadvantages, since it is basically only suitable for machining work pieces in the form of strips or beams. After completion of the work process, these must be released from the clamping devices and then pulled off the lifting rails perpendicular to their course or lifted out of the entire device. This is cumbersome and disadvantageous, since the removal of the workpiece from the lifting rails can be a critical factor in terms of time, especially in the automation of work processes.
  • 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 simply be pushed horizontally between the clamping elements, whereby in a further setting the workpiece support of the lifting rail is below the clamping device is arranged so that it does not get in the way of the machining of the workpiece clamped in the clamping device.
  • the workpiece clamping arrangement according to the invention has at least a third stroke setting, which is of 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 upwards beyond 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 to 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 upper side or above the upper side 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 exchangeable. For example, it may be necessary to replace a clamping device that is smaller in height 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 plane and the first clamping element of this further alternative clamping device is located.
  • the third stroke setting can therefore be used to be able to move the workpiece over 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 tensioning device is also mounted. However, it is just as conceivable that the lifting rail is arranged on a separate bearing arrangement.
  • the vertical adjustment of the at least one lifting rail can basically take place in different ways.
  • the use of linear drives to adjust the lifting rail is practical.
  • 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 securely, since long workpieces in the form of panels, beams or squared timber can be securely clamped and removed from the woodworking device again after processing.
  • the lifting rails are arranged parallel to one another and their respective main longitudinal extension directions run in a/the second direction perpendicular to the vertical direction.
  • Each lifting rail can be assigned a bearing arrangement running parallel to the respective lifting rail, wherein the bearing arrangement, which is preferably a suction traverse, can have a plurality of clamping devices, preferably vertical clamps, spaced apart from one another, in particular in the second direction.
  • the bearing arrangement which is preferably a suction traverse
  • such a bearing arrangement can be provided in the form of a suction traverse and at the same time provide the bearing for the associated lifting rail.
  • a lifting rail is therefore preferably mounted displaceably in the vertical direction directly on a corresponding suction traverse, on which the clamping devices are then also arranged.
  • the at least one lifting rail is adjusted to the first lifting setting after the workpiece has been clamped.
  • the workpiece can be machined.
  • the lifting rail is moved out of the work area that is required for processing the workpiece.
  • This working area can be the area of movement of corresponding processing units such as drills, saws and the like.
  • the workpieces in question here are primarily made of wood or wood substitutes, e.g. B. squared timber or panel-shaped workpieces. Consequently, the workpiece clamping arrangement according to the invention is preferably used in a wood processing machine.
  • workpieces made of 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 interfering with 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 lifting 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 clamping surfaces lying opposite one another, 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 in the vertical direction Z relative to one another for clamping or for releasing the splitting. This is preferably done either by using a vacuum or by using compressed air, both of which can be introduced via the bearing arrangement into the clamping device 1 in order to actuate the same.
  • the workpiece clamping arrangement has at least one lifting rail 3, which comprises at least one workpiece support 3a, on which a workpiece 4 can be placed and lifted.
  • the workpiece support 3a shown is below the support plane E.
  • the workpiece 4 is here clamped in the clamping device 1.
  • the lifting rail is preferably attached to the bearing arrangement 2, but can also be mounted separately therefrom.
  • the lifting rail 3 can have, for example, a telescopic extension with a plurality of telescopic elements 3b, 3c, 3d. Of course, it is just as possible to adjust the lifting rail 3 in the vertical direction Z in a different way.
  • the workpiece clamping arrangement according to the invention is also designed to bring the lifting rail 3 into at least one third lifting setting that differs from the first two lifting settings.
  • the workpiece support 3a lies with its workpiece support surface in the vertical direction Z above the upper side of the clamping device 1.
  • This third stroke setting has several advantages.
  • the workpiece 4 can now also be moved over the clamping device 1 in the horizontal direction X on the lifting rail 3 .
  • this third stroke setting or possibly other other stroke settings, to use or exchange clamping devices of different vertical heights.
  • the clamping device is not the in figure 3 shown height in the Z direction, but is, for example, 10 cm higher. Such a clamping device can then also be approached with the third stroke setting, in that the workpiece support 3a is brought back onto the corresponding support plane E.
  • Woodworking device 5 shown has a machine bed 7 on which the workpiece clamping arrangement is mounted.
  • a machining device 6, on which different machining 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 so that it can be adjusted in height 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).
  • clamping devices 1 that are arranged at a distance from one another can be seen, which are arranged or mounted on the respective bearing arrangement 2 .

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Jigs For Machine Tools (AREA)
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 true EP4008479A1 (fr) 2022-06-08
EP4008479C0 EP4008479C0 (fr) 2024-03-06
EP4008479B1 EP4008479B1 (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)

Citations (3)

* 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

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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

Patent Citations (3)

* 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

Also Published As

Publication number Publication date
EP4008479C0 (fr) 2024-03-06
EP4008479B1 (fr) 2024-03-06
DE102020132392A1 (de) 2022-06-09

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