EP4034338A1 - Vakuumspanneinrichtung - Google Patents
VakuumspanneinrichtungInfo
- Publication number
- EP4034338A1 EP4034338A1 EP20780692.8A EP20780692A EP4034338A1 EP 4034338 A1 EP4034338 A1 EP 4034338A1 EP 20780692 A EP20780692 A EP 20780692A EP 4034338 A1 EP4034338 A1 EP 4034338A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- shut
- vacuum
- workpiece
- consoles
- console
- 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
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 vacuum clamping device for Aufneh men and clamping a workpiece to be machined.
- vacuum clamping devices through which plat ten-like workpieces can be clamped in such a way that they are held in a fixed position for a machining operation.
- Such vacuum clamping devices are used, for example, in woodworking devices for clamping wood or chipboard.
- the vacuum clamping devices usually have several clamping bars or consoles on which slidable suction elements are provided. These suction elements form support surfaces for a workpiece, with a vacuum being provided on the suction elements via the clamping bars in order to suck in and hold the workpiece.
- a guide to each other positioning bar In order to position the clamping bars and / or suction elements according to the dimensions of a workpiece to be clamped, they are provided with a guide to each other positioning bar.
- the negative pressure is provided to the clamping bars via a common negative pressure distribution system with a central vacuum valve, so that the negative pressure is applied to all clamping bars.
- a common negative pressure distribution system with a central vacuum valve, so that the negative pressure is applied to all clamping bars.
- several working fields can be formed by the clamping bars, such vacuum clamping devices usually having two or four working fields.
- the clamping bar of a work area is provided with the negative pressure via its own vacuum distribution system, so that the clamping bars of a work area can only be positioned within this work area and cannot be positioned in an adjacent work area.
- Such vacuum clamping directions had limited flexibility for arranging and positioning the clamping bars and / or suction elements.
- the object of the present invention is to propose a vacuum clamping device through which a high degree of flexibility allows for picking up and clamping at least one workpiece to be machined.
- the vacuum clamping device for picking up and clamping at least one workpiece to be processed, in particular special for a woodworking device, has several brackets that can be moved relative to one another, with suction elements for placing and clamping of the at least one workpiece can be arranged on the console, as well as with at least one vacuum device , through which a negative pressure can be provided for clamping the at least one workpiece on the consoles, the negative pressure device having several shut-off valves and at least one shut-off valve assigned to each console, so that the negative pressure can be provided independently of one another by the shut-off valves on each console.
- This forms a vacuum clamping device with several consoles for holding and clamping workpieces, which can be individually adapted to the workpiece to be clamped.
- the consoles of the vacuum clamping device can be individually adapted to the dimensions of a workpiece to be clamped, so that, in addition to high flexibility, low energy requirements can also be achieved for generating the negative pressure.
- a preferred embodiment of the vacuum clamping device can provide that the negative pressure can be provided by the at least one shut-off valve on the console assigned to the shut-off valve.
- the at least one shut-off valve on each console enables individual regulation of the negative pressure.
- the shut-off valve assigned to the console can also have a significantly smaller size, since the negative pressure provided by an individual console has a lower volume flow than the central total volume flow generated by the negative pressure source.
- At least one shut-off valve and the console assigned to the shut-off valve form an independently controllable subsystem of the vacuum device.
- each console and the at least one shut-off valve assigned to the console can form an independently controllable subsystem of the negative pressure device in which the negative pressure can be provided individually by the shut-off valve.
- the at least one shut-off valve can be integrated in the console or arranged on the console, preferably on or in a head area of the console. In this way, the at least one shut-off valve can be provided directly on the console, so that it is moved along with the console when the console is positioned. Because the at least one shut-off valve is integrated in the console, a compact design of the console can be provided. In addition, by integrating the at least one shut-off valve in the console, protection against damage and contamination can be achieved.
- An embodiment of the vacuum clamping device can provide that the at least one shut-off valve is designed as a pneumatic valve.
- pneumatic valves can have a small overall size so that they can be arranged directly on the console or integrated in the console.
- the pneumatic valve can enable direct regulation of the negative pressure in the respective console.
- Pneumatic valves also have short switching times so that the negative pressure can be regulated quickly and precisely.
- a guide device can be provided, wherein the consoles can be moved independently of one another along an adjustment range of the guide device and the negative pressure can be provided to each console over the entire adjustment range of the guide device.
- Such a guide device can achieve a high degree of flexibility when adapting the consoles to a workpiece to be clamped.
- each console can be provided over the entire adjustment range, it can be provided, in particular with more than two consoles, that these can not only be positioned in a defined work area, but rather positioned very flexibly in the entire adjustment range of the guide device and at the same time every position can be supplied with the oppression.
- This high flexibility is also achieved in that the consoles can be positioned independently of one another by the guide device, so that the consoles can be precisely adapted to a workpiece to be clamped.
- the guide device can be part of a holding device or can also be arranged on a base frame of the processing device or can be designed to be integrated by this.
- a further preferred embodiment of the vacuum clamping device can provide that the vacuum device has at least one central vacuum source and comprises at least one flow channel through which the vacuum can be provided at each console over the entire adjustment range of the guide device.
- the negative pressure can be generated by one or more centrally arranged negative pressure sources and provided on the consoles via the at least one flow channel.
- a low energy requirement of the vacuum device can be achieved.
- a control device can be provided through which the shut-off valves assigned to the consoles are provided of the negative pressure can be controlled independently of one another. In this way, flexible provision of the negative pressure at the respective consoles can be provided.
- the control device can control the shut-off valves assigned to the consoles depending on the workpiece to be clamped, in particular depending on the dimensions of the workpiece to be clamped.
- a particularly high flexibility of the vacuum clamping device can be achieved in that only a number of shut-off valves corresponding to the dimensions of the workpiece is controlled for clamping the workpiece.
- the negative pressure for clamping the workpiece is only provided on the consoles that are required to securely clamp the workpiece. In this way, an energy-efficient vacuum clamping device can be formed.
- a detection device can be provided through which dimensions of the workpiece to be clamped can be detected, the control device activating the shut-off valves as a function of the detected dimensions.
- a detection device can be designed as an optical detection device and detect the dimensions of the workpiece, for example, by a camera-based system or by a laser-technical device.
- a display device which can be controlled by the control device, with the display device being able to display a positioning of the consoles and / or suction elements for picking up and clamping the at least one workpiece.
- information can be projected into a work area or receiving area of the vacuum clamping device, the information indicating to the user which consoles and / or suction elements must be positioned at which point in order to optimally clamp the workpiece.
- the display device can also communicate this information to the user by means of acoustic or haptic signals.
- the control device can control a positioning device, the consoles and / or suction elements being able to be automatically positioned by the positioning device for picking up and clamping the at least one workpiece.
- a vacuum clamping device can be formed in which manual operation by the user is not absolutely necessary.
- Such a vacuum clamping device can be used in particular in a partially automated or fully automated processing device.
- An embodiment of the vacuum clamping device can provide that the woodworking device is CNC-controlled or is designed as a CNC-controlled machining center or is an assembly of a CNC-controlled machining center.
- automated control of the wood processing device can be made possible.
- a partially or fully automated machining of the workpiece can be provided through the CNC control or the integration of the machining device into a CNC-controlled machining center.
- the CNC control also enables complex workpiece geometries to be machined automatically and can also control the vacuum clamping device.
- Fig. 1 is a perspective view of a Vakuumspannein direction.
- FIG. 1 shows a perspective view of a vacuum clamping device 10 for receiving and clamping plate-shaped workpieces.
- a vacuum clamping device 10 can be used in a processing device, for example a wood processing device, in order to hold one or more workpieces in a fixed position for a processing operation.
- a wood processing device can be a CNC-controlled processing device or an assembly of a CNC-controlled processing center or form a CNC-controlled processing center.
- the workpieces are in particular those that are at least partially made of wood, wood-based materials, plastic, composite materials or the like. Such workpieces are used, for example, in the field of furniture and component manufacturing. This can be a wide variety of workpieces, such as solid wood or chipboard, lightweight panels, sandwich panels and the like. However, the present invention is not limited to the clamping of such workpieces.
- the vacuum clamping device 10 has a holding device 11 on which two consoles 12 are arranged. These consoles 12 are designed as clamping beams. A console table for the workpieces can be formed by the consoles 12.
- the holding device 11 has two guides 13, through which the consoles 12 are provided to be movable relative to the holding device 11. These guides 13 are designed as linear guides and enable the brackets 12 to be positioned in an X direction. Guide elements 14, which are provided on the consoles 12, engage in the guides 13.
- the consoles 12 are positioned by the engaging in the guides 13 guide elements 14 independently of one another along a range X of the guides 13 Verstellbe.
- the consoles 12 and the guides 13 are designed as profile elements, for example as extruded profile elements.
- suction elements At a Upper side 16 of the consoles 12 suction elements, not shown in detail, can be arranged, which can be positioned independently of one another along a longitudinal extension of the consoles 12 in a Y direction.
- the suction elements form support areas on which the workpiece to be clamped can be placed.
- the holding device 11 is not limited to such a configuration.
- the holding device 11 is not limited to such a configuration.
- the holding device 11 is not limited to such a configuration.
- the holding device 11 can also be designed as part of a base frame of the processing device.
- more than two consoles 12 can be arranged on the holding device 11. It can also be provided that several such holding devices 11 with brackets 12 arranged thereon are arranged to one another, for example two or four, whereby a large coherent working field or also one or more individually controllable working fields can be formed.
- the vacuum clamping device 10 also comprises a negative pressure device 17.
- This negative pressure device 17 has a negative pressure source 18 and a negative pressure distribution system 19.
- the vacuum source 18 generates a vacuum that is made available to the consoles 12 via the vacuum distribution system 19.
- This vacuum distribution system 19 is formed by a plurality of flow channels 20 which are at least partially provided in the guides 13 and / or consoles 12 or are formed by the guides 13 and / or the consoles 12.
- the flow channels 20 of the negative pressure distribution system 19 are formed by an inner contour of the guides 13 and / or consoles designed as extruded profiles
- the guides 13 In order to provide the negative pressure at the consoles 12, the guides 13 have a multiplicity of outlet openings 21 along the adjustment area X. These outlet openings 21 are provided in a closable manner and are converted into an open position to provide the negative pressure when a console 12 is positioned with the guide element 14 to a corresponding outlet opening 21.
- the guide element 14 thus forms a vacuum connection between the guide 13 and the console 12.
- a plurality of suction elements are provided at the top 16 of the console 12.
- the suction elements can be positioned in relation to these suction openings 22, so that the negative pressure provided to the consoles 12 can be used via the suction elements in order to suck in the workpiece placed on the suction elements.
- the suckling openings are the suckling openings
- suction opening 22 is provided closable and are transferred to an opening position when a suction element is positioned at the respective suction opening 22.
- the vacuum device 17 also includes a plurality of shut-off valves 23, a shut-off valve 23 being assigned to a console 12 in each case.
- the shut-off valves 23 By means of the shut-off valves 23, the negative pressure in the console 12 assigned to the respective shut-off valve 23 can be regulated. As shown in Figure 1, the shut-off valves are
- shut-off valves 23 arranged on a head region 24 of the consoles 12. It can also be provided that the shut-off valves 23 are arranged at a different position of the consoles 12 or that the shut-off valves 23 are installed or integrated in the consoles 12.
- the shut-off valves 23 provide that the negative pressure in each console 12 can be regulated independently of one another.
- the shut-off valves 23 are designed in particular as pneumatic valves that can be switched between an open position and a closed position and optionally one or more intermediate positions. In this way, an independently controllable part system 25 of the vacuum device 17 are formed by each console 12 and the shut-off valve 23 assigned to the respective console 12. As a result, the negative pressure at each console 12 can be provided independently of the other console 12 or the other consoles 12.
- the vacuum device 17 has a control device 26. At least the shut-off valves 23 assigned to the consoles 12 can be controlled individually by the control device 26. In particular, it is provided that the shut-off valves 23 are controlled by the control device 26 as a function of the workpiece to be clamped, ie as a function of the dimensions or dimensions of the workpiece.
- shut-off valves 23 of the consoles 12 that are required to clamp a workpiece with the vacuum clamping device 10 are controlled by the control device 26. In this way, the negative pressure is only provided on the consoles 12 that are required for clamping the workpiece.
- the shut-off valves 23 are arranged in the closed position on consoles 12, which are not required for clamping the workpiece concerned, so that no negative pressure is provided on consoles 12.
- the consoles 12, which are used to clamp the workpiece can be positioned as desired by a user along the adjustment range X of the guides 13. In this way, the consoles 12 for clamping the workpiece or several workpieces can be positioned as required and any work fields can be formed or the consoles 12 can be grouped into any work fields.
- the vacuum clamping device 10 can have a detection device not shown in detail.
- This detection device can be designed as an optical detection device, for example as a camera system or a laser device.
- the dimensions of the workpiece can be detected by the detection device before it is clamped.
- the detection device is coupled to the control device 26. In this way, the control device 26 can automatically control the shut-off valves 23 as a function of the recorded dimensions of the workpiece.
- the vacuum clamping device 10 can additionally have a display device, likewise not shown in detail, which can be controlled by the control device 26.
- This display device can visually, acoustically and / or haptically indicate to the user, depending on the workpiece to be clamped, in particular depending on the dimensions of the workpiece, those consoles 12 and / or Sau giata that must be positioned by the user to clamp the work piece through the vacuum clamping device 10.
- the display device can display both the consoles 12 and / or suction elements to be positioned and the exact position in which the consoles 12 and / or suction elements must be positioned for clamping the workpiece.
- Such a display device can be designed, for example, as a projector which is arranged above the consoles 12 and displays corresponding information. Acoustic and / or haptic information can also be output by the display device, so that the user can be provided with information on the consoles 12 and / or suction parts to be positioned via signals, tones or, for example, by vibrating at least parts of the processing device.
- control device 26 can control a positioning device, also not shown, by means of which the consoles 12 and / or suction elements are automatically positioned depending on the workpiece to be clamped, in particular depending on the dimensions of the workpiece. In this way, manual positioning by the user is no longer necessary. LIST OF REFERENCE SYMBOLS FOR SOLUTIONS
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Jigs For Machine Tools (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102019126112.0A DE102019126112A1 (de) | 2019-09-27 | 2019-09-27 | Vakuumspanneinrichtung |
PCT/EP2020/076905 WO2021058745A1 (de) | 2019-09-27 | 2020-09-25 | Vakuumspanneinrichtung |
Publications (1)
Publication Number | Publication Date |
---|---|
EP4034338A1 true EP4034338A1 (de) | 2022-08-03 |
Family
ID=72659252
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP20780692.8A Pending EP4034338A1 (de) | 2019-09-27 | 2020-09-25 | Vakuumspanneinrichtung |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP4034338A1 (de) |
DE (1) | DE102019126112A1 (de) |
WO (1) | WO2021058745A1 (de) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102021112807A1 (de) | 2021-05-18 | 2022-11-24 | Homag Bohrsysteme Gmbh | Haltesegment für eine Werkstückhalteeinrichtung, Werkstückhalteeinrichtung sowie Bearbeitungsmaschine |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3440125A1 (de) * | 1984-11-02 | 1986-05-07 | Horst Witte Entwicklungs- und Vertriebs KG, 2122 Bleckede | Vakuumspannvorrichtung zum aufspannen von werkstuecken |
DE19631661C2 (de) * | 1996-08-05 | 2000-05-25 | Homag Maschinenbau Ag | Bearbeitungsmaschine |
DE10023916B4 (de) * | 2000-05-17 | 2004-09-09 | J. Schmalz Gmbh | Maschinentisch |
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 |
DE102015014585A1 (de) * | 2015-04-12 | 2016-10-13 | Günther Zimmer | Sensorisch überwachter Blocksauger |
-
2019
- 2019-09-27 DE DE102019126112.0A patent/DE102019126112A1/de active Pending
-
2020
- 2020-09-25 WO PCT/EP2020/076905 patent/WO2021058745A1/de active Application Filing
- 2020-09-25 EP EP20780692.8A patent/EP4034338A1/de active Pending
Also Published As
Publication number | Publication date |
---|---|
WO2021058745A1 (de) | 2021-04-01 |
DE102019126112A1 (de) | 2021-04-01 |
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