EP3755501A1 - Élément de serrage et machine d'usinage dotée dudit élément de serrage - Google Patents

Élément de serrage et machine d'usinage dotée dudit élément de serrage

Info

Publication number
EP3755501A1
EP3755501A1 EP19706590.7A EP19706590A EP3755501A1 EP 3755501 A1 EP3755501 A1 EP 3755501A1 EP 19706590 A EP19706590 A EP 19706590A EP 3755501 A1 EP3755501 A1 EP 3755501A1
Authority
EP
European Patent Office
Prior art keywords
clamping element
unit
console
drive unit
processing machine
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.)
Pending
Application number
EP19706590.7A
Other languages
German (de)
English (en)
Inventor
Daniel Schramm
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 Bohrsysteme GmbH
Original Assignee
Homag Bohrsysteme 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 Bohrsysteme GmbH filed Critical Homag Bohrsysteme GmbH
Publication of EP3755501A1 publication Critical patent/EP3755501A1/fr
Pending legal-status Critical Current

Links

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
    • B25B11/00—Work holders not covered by any preceding group in the subclass, e.g. magnetic work holders, vacuum work holders
    • B25B11/005—Vacuum work holders
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q1/00—Members which are comprised in the general build-up of a form of machine, particularly relatively large fixed members
    • B23Q1/03—Stationary work or tool supports
    • B23Q1/037—Stationary work or tool supports comprising series of support elements whose relative distance is adjustable
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
    • B23Q3/02—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for mounting on a work-table, tool-slide, or analogous part
    • B23Q3/06—Work-clamping means
    • B23Q3/08—Work-clamping means other than mechanically-actuated
    • B23Q3/088—Work-clamping means other than mechanically-actuated using vacuum means

Definitions

  • the invention relates to a clamping element (in particular a vacuum suction device), which is used, for example, for holding a plate-shaped workpiece. Furthermore, the invention relates to a processing machine with a clamping element. Such a processing machine is used, for example in the field of furniture and component industry, for machining workpieces made of preferably wood, wood-based materials, composite materials or the like.
  • console tables In the field of woodworking machines machines with so-called console tables are known.
  • Such console tables comprise bar-shaped consoles, on which clamping elements (vacuum cups, vacuum blocks) can be positioned.
  • clamping elements vacuum cups, vacuum blocks
  • the choice of the position of the clamping elements on a console and possibly the placement of the console itself takes place depending on the application, in particular depending on the size of the workpiece to be machined and the processing steps to be performed.
  • Systems are known in which the clamping elements are prepared manually (positioned on the console). The clamping elements are placed at a certain position of the console, for example, using a ruler or similar positioning aid. After the clamping elements designed as vacuum suction cups have been placed on the respective console, the underlying magnetic valves open, allowing holding / clamping of a workpiece.
  • processing machines are known in which the clamping elements are driven by means of a drive to the respective position on the console.
  • drive systems increase costs and, in general, maintenance.
  • Document EP 2 992 993 A1 relates to an apparatus and a method for positioning a tensioning element.
  • the device has at least one positioning element which is set up to display the desired position for a movable tensioning element.
  • the tensioning element has a position detection device which is set up to provide the processing station with a signal which comprises the actual position of the tensioning element.
  • each clamping element is provided to equip with a separate drive, which enables positioning at least within a specified tolerance range. It eliminates according to this embodiment, a generally complex delivery system that covers the entire processing table and consequently makes a higher space requirement required in the processing station. In addition, the maintenance of the clamping element is simplified with its own drive, since a maintenance of individual clamping elements by simply replacing the same is possible, without downtime of the processing station cause.
  • drives are, for example, actuators, pneumatic drives, or vacuum-powered drives in question.
  • the present invention aims to provide a clamping element and a processing machine, wherein the positioning of the clamping element, or preferably of a plurality of clamping elements, to be implemented on a console constructively simpler.
  • the present invention relates to a processing machine with a clamping element and a method for moving a clamping element along a console.
  • Detailed features of the dependent claims may be combined with each of the independent claims.
  • the tensioning element which is preferably designed as a vacuum tensioner, comprises a support region, on which a section of a workpiece can be received, and at least one drive unit for moving the tensioning element along a console of a processing machine. Furthermore, the clamping element has a unit which is set up to detect individualized control signals and to control the drive unit.
  • the control signals are transmitted via the power supply, in particular a conductor track / busbar.
  • the control signal can be modulated onto the conductor track / busbar.
  • controlling the drive unit may mean, for example, that the drive unit is activated or is turned on. Also, further information, such as speed, end position, etc. of the drive unit can be specified.
  • the control signal acquisition unit may comprise a decoder or may be a decoder.
  • the present invention has the advantage that the number of clamping elements per console can be increased without significantly changing the complexity of the system. In addition, moderate manufacturing costs can be realized. Even if, instead of the preferred in the context of the invention preferred motor adjustment of the clamping element for its positioning such a reaction in a specific application, the motor-driven clamping element can be manually positioned.
  • the unit of the clamping element responds to individualized control signals, it is possible to control the specific clamping element and possibly to move. Accordingly, if a plurality of clamping elements are arranged on a processing machine or a console of a processing machine, then these can each be controlled individually.
  • a workpiece held / positioned with the tensioning element can be moved from an optimum position for dogging to a position which is more advantageous for machining the workpiece.
  • a better and easier operation of the machine can be achieved.
  • clamping element it is possible to move the clamping element into a specific position before a workpiece is placed. If several clamping elements are provided on a processing machine, then these can be individually positioned depending on the workpiece or depending on the processing to be performed. If the clamping element is designed as a vacuum clamp, an opening is provided on the support area, which is connected to a vacuum source. Furthermore, a seal may be attached to the support area.
  • the drive unit comprises an engagement element, in particular a toothed wheel, in order to be able to move the tensioning element relative to the bracket.
  • the drive unit may be designed as a linear motor, so that there is a non-contact drive.
  • the tensioning element may have a base with protruding portions which are adapted to cover side walls of the console in sections.
  • the clamping element can be secured to a console.
  • the unit for detecting control signals is connected to a sliding contact.
  • the drive unit is an electric drive unit.
  • the tensioning element comprises two or more drive units, wherein the two or more drive units are arranged to attack respectively on opposite sides of the console.
  • the drive units may each comprise a gear, which are driven by a motor.
  • the unit for detecting control signals is set up Basis of an activation key to connect the drive unit of the clamping element with a conductor track of the console or to activate the drive unit to move the clamping element.
  • the activation key may be in the form of NRZ, RZ or Manchester coding. Since the unit for detecting control signals of the tensioning element reacts to control signals individualized by an activation key, it is possible to control the specific tensioning element.
  • a processing machine for processing a, preferably plate-shaped, workpiece.
  • the processing machine comprises a processing table with at least one console extending in a first direction, and at least one clamping element, wherein the clamping element has a drive unit for moving the clamping element along the console.
  • the clamping element has a unit for detecting control signals, which is set up to detect individualized control signals and to control the drive unit.
  • the control signals are transmitted via the power supply, in particular a conductor track / busbar.
  • the control signal can be modulated onto the conductor track / busbar.
  • the processing machine comprises a plurality of clamping elements on the console, wherein it is further preferred that the clamping elements are provided detachably on the console.
  • the processing machine comprises a plurality of consoles, to each of which a plurality of clamping elements, preferably removable, can be attached or, preferably removable, are attached.
  • the console extends a conductor track, wherein a sliding contact of the clamping element is in communication with the conductor track.
  • the drive unit of the clamping element can be supplied with energy.
  • a non-contact energy transfer can be provided, in which the energy transfer takes place, for example, inductively.
  • the sum of the transmitted energy may not have to be high because the clamping element usually rests and is moved only to change the position.
  • a modular unit extends along the console, which module unit comprises a grid in which an engagement element of the drive unit can engage.
  • an attack point for the drive unit of the clamping element is provided in a cost effective manner.
  • the tensioning element comprises two or more drive units, wherein the two or more drive units are arranged to attack respectively on opposite sides of the console. In this way, tilting of the clamping element on the console is avoided.
  • the processing machine has a control unit which comprises an encoder in order to modulate control signals for controlling the drive unit.
  • the control signals modulated by the encoder for example at the power supply (printed circuit) for the drive unit, can be received by the unit for detecting control signals of the clamping element and interpreted accordingly.
  • the control signals are individualized, so that a specific clamping element is addressed by a specific control signal. In this way it is possible to control the clamping elements individually or independently and to move. It is preferable that the console along the
  • Processing table is movable in a second direction, wherein it is preferred that a movement of the clamping element and the console takes place at the same time temporarily.
  • the movement can be initiated by the control unit of the processing machine, so that the movement of the clamping element on the console and the movement of the console are carried out appropriately coordinated.
  • the invention relates to a method for moving a tensioning element along a console, wherein the tensioning element comprises a drive unit for moving the tensioning element and a unit for detecting, supplied by the power supply, individualized control signals, comprising: detecting a control signal by the unit, and controlling the drive unit based on the control signal detected by the unit.
  • Fig. 1 shows a clamping element according to an embodiment of the invention on a console of a processing machine.
  • Fig. 2 shows a processing machine with several
  • the console 1 shown in FIG. 1 is part of a processing table of a processing machine 100.
  • the processing machine 100 shown in FIG. 2 comprises a machine bed 101, which is provided with guides 102 for a plurality of consoles 1.
  • the brackets 1 can be moved along the guides 102 in a translational direction.
  • a processing unit 106 can be moved. With the processing unit 106, for example, a milling or drilling can be performed on a workpiece.
  • a tension member 10 is positioned, which can be moved along the Y direction (longitudinal direction of the console 1) as described in more detail below.
  • the clamping element 10 can be removed in another application from the console 1 and manually positioned on the support side lb of the console 1.
  • clamping elements On the console 1 also several clamping elements can be provided (for example, 2, 3 or more clamping elements).
  • An exemplary number of three clamping elements 10 is shown on the brackets 1 shown in FIG. 2, it being possible for the number of clamping elements to be different.
  • only one clamping element 10 is shown in FIG. 1.
  • one module element 20 is provided on two opposite side sections of the console 1 (only one side section 1a with a corresponding module element 20 is shown in FIG.
  • the module element 20 is in the present embodiment, connected to the console 1 (for example, screwed), but may also be partially formed integrally with the console 1.
  • the module element 20 comprises a conductor track 21 and a screening 22.
  • the conductor track 21 is provided for energy and data transmission, whereas the screening 22 provides engagement sections for a clamping unit 10 provided on the drive unit.
  • the conductor 21 and the screening 22 are arranged parallel to each other in the present embodiment, however, the conductor 21 and the screening 22 may be formed as a common portion, said common portion serves both as a grid and as a conductor.
  • the clamping element 10 comprises a support area 11, on which a portion of a, for example, plate-shaped workpiece can be placed.
  • a plate-shaped workpiece may be, for example, a wood panel, a chipboard, an MDF board, an HDF board, a composite board, or the like.
  • a sealing element 11 a is mounted, which encloses an outer edge of the support area 11. Furthermore, at least one vacuum opening is provided in the support area 11, so that a negative pressure is formed in the region of the clamping element 10 bounded by the sealing element 11a when the workpiece is applied.
  • the support region 11 of the clamping element 10 is supported by a support 12, which in turn is attached to a base 13 is.
  • the support area 11, the carrier 12 and the base 13 may be formed in several parts or in one piece as in the present embodiment.
  • the base 13 is, by protruding portions 13a, 13b, formed wider than the width of the support side lb of the console 1.
  • the protruding portions 13a, 13b of the base 13 beyond the side portions 1a of the console 1 stand out when the clamping element 10 on a Pad side lb of the console 1 is applied.
  • the projecting portions 13a, 13b of the base 13 in the state when the tension member 10 is mounted on the bracket 1 extend along the respective side portion 1a of the bracket 1 beyond the module member 20.
  • the base 13 of the clamping element 10 surrounds the console 1 in sections.
  • a drive unit is provided in the sections 13a, 13b of the base 13, which is in contact with the conductor track 21 via a sliding contact and engages in the detent 22 of the module element 20 via a respective engagement element (for example gear, not shown). Since the drive units in the sections 13a, 13b and thus provided on both sides and their drive movements are synchronized, a tilting of the clamping element 10 is prevented during its movement along the console 1.
  • the respective drive unit comprises one or two electric motors per side, an electronic control unit, in which a unit for detecting control signals (decoder), which may for example comprise a decoder, and optionally one or more auxiliary devices for the position determination of the clamping element 10 at Console 1.
  • the unit for detecting control signals interprets signals transmitted via the track 21 and from the sliding contacts be recorded. If an individualized signal is detected, then the unit for detecting control signals can activate or activate, for example, the drive units of the tensioning element, so that the tensioning element is moved and repositioned.
  • a drive unit in the base 13, for example in the center, wherein an engagement element (for example a toothed wheel) is provided on both sides in the region of the sections 13a, 13b of the base 13.
  • the engagement elements are connected to each other via a gear and can be operated synchronously in this way.
  • the unit for detecting control signals disconnects the voltage from the drive unit of the clamping element 10 (the electric motors) at rest. If necessary, information is transmitted in the form of bits on the conductor 21 from an external control unit, for example a control unit of the processing machine 100. This is done by NRZ, RZ or Manchester coding. This ensures that a particular clamping element can be addressed.
  • the records must initially contain a corresponding key that is uniquely assigned. If an activation key is detected by a unit for detecting control signals of a tensioning element 10, then the drive unit of the corresponding tensioning element (electric motors) is connected to the conductor track 21 and the tensioning element 10 is moved.
  • any number of clamping elements 10 can be moved independently of each other along the console 1 by a or a control unit of the processing machine a plurality of signals, each corresponding to a clamping element 10, are transmitted via the conductor track 21 and the respective sliding contact to the unit for detecting control signals, which in turn assumes control of the respective drive unit.
  • the position of a tension member 10 on a support side 1b of the console 1 is changed as follows.
  • a desired positioning of one or more clamping elements is input manually or by means of setup data.
  • the respective console can be moved along the machine bed 101, if necessary.
  • the clamping element 10 (or a plurality of clamping elements) provided on the console 1 is moved by modulating control signals on the electrical conductor tracks 21 which can be read out by the unit for detecting control signals of a drive unit of the clamping element. Based on the output of the control signal detection unit, activation or deactivation of each drive unit of the tension member 10 is performed.
  • a ratchet 22 has been described for providing an engagement portion for an engagement member to ensure movability of the tension member 10, it is also possible to provide the movement of the tension member along the bracket by means of a linear motor.
  • the tension member according to the present embodiment is formed as a vacuum suction / suction block
  • the clamping element according to further embodiments may be a gripper in which a workpiece is clamped between clamping jaws.

Abstract

L'invention concerne un élément de serrage, en particulier un aspirateur à vide, utilisé par exemple pour maintenir une pièce sous forme de plaque. L'élément de serrage présente une unité conçue pour détecter des signaux de commande individualisés transmis par alimentation électrique et pour commander l'unité d'entraînement.
EP19706590.7A 2018-02-23 2019-02-20 Élément de serrage et machine d'usinage dotée dudit élément de serrage Pending EP3755501A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102018202774.9A DE102018202774A1 (de) 2018-02-23 2018-02-23 Spannelement sowie Bearbeitungsmaschine mit diesem
PCT/EP2019/054185 WO2019162311A1 (fr) 2018-02-23 2019-02-20 Élément de serrage et machine d'usinage dotée dudit élément de serrage

Publications (1)

Publication Number Publication Date
EP3755501A1 true EP3755501A1 (fr) 2020-12-30

Family

ID=65516628

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19706590.7A Pending EP3755501A1 (fr) 2018-02-23 2019-02-20 Élément de serrage et machine d'usinage dotée dudit élément de serrage

Country Status (5)

Country Link
US (1) US20210086329A1 (fr)
EP (1) EP3755501A1 (fr)
CN (1) CN111757792A (fr)
DE (1) DE102018202774A1 (fr)
WO (1) WO2019162311A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110561134B (zh) * 2019-09-27 2024-03-01 常熟建华模具科技股份有限公司 玻璃模具加工用的夹具交替移动装置
DE102019133144A1 (de) 2019-12-05 2021-06-10 Homag Bohrsysteme Gmbh Spannelement sowie Bearbeitungsmaschine mit Spannelement
CN111070452B (zh) * 2020-01-03 2020-08-28 宜昌市洋坤建筑有限公司 一种房建用水泥预制板卡槽加工设备

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19833125A1 (de) * 1998-07-23 2000-01-27 Actech Gmbh Adv Casting Tech Flächenportalsystem mit linearen Direktantrieben
DE10162862B4 (de) * 2000-11-08 2012-07-12 J. Schmalz Gmbh Vorrichtung zum Fixieren von Werkstücken
DE102004043697B4 (de) * 2004-09-09 2009-11-19 Weeke Bohrsysteme Gmbh Vorrichtung zum Positionieren von Vakuumsaugern
DE102004053519B3 (de) * 2004-10-29 2006-05-04 J. Schmalz Gmbh Vorrichtung zum Fixieren von Werkstücken
DE102005028794B3 (de) * 2005-06-16 2006-09-21 J. Schmalz Gmbh Vorrichtung zum Fixieren von Werkstücken
ITBO20070683A1 (it) * 2007-10-09 2009-04-10 Biesse Spa Macchina per la lavorazione di componenti di legno o simili
US20100327506A1 (en) * 2008-12-17 2010-12-30 Gregg Martin Window and door frame machining device
IT1403531B1 (it) * 2011-01-27 2013-10-31 Biesse Spa Macchina per la lavorazione di componenti di legno o simili
DE102011078875B3 (de) * 2011-07-08 2012-12-20 J. Schmalz Gmbh Vorrichtung zum Spannen und Halten von Werkstücken mittels Unterdruck
JP2014072510A (ja) * 2012-10-02 2014-04-21 Disco Abrasive Syst Ltd チャックテーブル
DE102014012957A1 (de) * 2014-09-04 2016-03-10 Homag Holzbearbeitungssysteme Gmbh Vorrichtung und Verfahren zum Positionieren eines Spannelements
DE202014007857U1 (de) * 2014-10-01 2016-01-05 Ceratis Gmbh Laufbahnsystem
DE102015014585A1 (de) * 2015-04-12 2016-10-13 Günther Zimmer Sensorisch überwachter Blocksauger

Also Published As

Publication number Publication date
DE102018202774A1 (de) 2019-08-29
CN111757792A (zh) 2020-10-09
US20210086329A1 (en) 2021-03-25
WO2019162311A1 (fr) 2019-08-29

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