EP0911118B1 - Vakuumspannsystem - Google Patents
Vakuumspannsystem Download PDFInfo
- Publication number
- EP0911118B1 EP0911118B1 EP98114648A EP98114648A EP0911118B1 EP 0911118 B1 EP0911118 B1 EP 0911118B1 EP 98114648 A EP98114648 A EP 98114648A EP 98114648 A EP98114648 A EP 98114648A EP 0911118 B1 EP0911118 B1 EP 0911118B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- shut
- vacuum
- valve
- suction device
- support base
- 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.)
- Expired - Lifetime
Links
Images
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
Definitions
- the invention relates to a vacuum clamping system, according to the generic term of independent claim 1 arising from the document DE 297 05 087 U is known.
- clamping beams Known on which vacuum blocks are placed, which for Clamping the workpiece to be machined, for example Wooden panels or the like, serve. After putting on the Vacuum blocks on the clamping beams are attached to the Clamping bars sucked in so that they are fixed. This is done by putting one or more in a first Shut-off valves provided in the vacuum circuit are opened, over which one at the bottom of the vacuum block envisaged closed room with the first Vacuum circuit is connected. After hanging up the Work piece on the vacuum block is on a second Vacuum circuit creates a vacuum and thereby the Workpiece sucked in by the vacuum block.
- the clamping bars are relative are complex because they have two vacuum circuits Need to become.
- the clamping beams must be attached to the Vacuum block vacancies with two each Shutoff valves are provided so that the two Vacuum circles can be closed there.
- the vacuum blocks on the clamping beam can only linearly that means to be moved in one direction, which is the Corresponds to the longitudinal direction of the clamping beam. In the transverse direction to do this, the clamping beams must be moved towards each other. If different workpieces are to be machined one after the other this can possibly at a considerable adjustment effort to lead.
- the vacuum blocks usually cannot be rotated.
- clamping tables on which the vacuum blocks are placed can be placed anywhere. This has the advantage that the location of the individual vacuum blocks exactly to the shape of the workpiece can be customized. In addition, changes in location are Vacuum block relatively easy.
- the invention is therefore based on the object previously to eliminate the disadvantages described and / or To provide vacuum clamping system, which is relatively simple is constructed and allows more flexible handling.
- the workpiece is clamped over the space which serves to clamp the vacuum block.
- This invention The main advantage of the solution is that the tensioning of the Block suction and just to clamp the workpiece only vacuum circuit is required. So that is also Structure of the support base, for example a clamping beam, much easier than with systems with two Under pressure circuits.
- the suction block in the invention Vacuum clamping system not in a certain orientation the support base is put on.
- the vacuum block must always be placed so that the one Intake opening with the space for suction of the block suction device and the other suction opening with the connecting line to Spannraum communicates.
- the vacuum block is rotated put on, if at all possible, this can be too Malfunction. Since the vacuum block only in one certain position or setup can be placed, are the possible applications in the known Clamping systems restricted.
- Clamping system comes with a single suction opening in the Support base for both the vacuum block and the workpiece curious; excited. Therefore, the vacuum block can also do any desired Take position on the support base, because the space to Clamping the vacuum block with a suction opening Circulation basis communicated.
- the seal of the shut-off valve is advantageous Block suction device wider than the width of the flow channels the shut-off valve. In this way, leaks are avoided only partially covered by the vacuum block Shut-off valves, which lead to malfunctions, that is defective Suction of the vacuum block could result. Becomes the vacuum block placed on the support base in such a way that the seal is seated on a shut-off valve, this is complete locked. If this shut-off valve is still operated, that means to be opened, then a flow through the Seal prevented. The shut-off valve is inside of the room and is partially covered by the seal, then the space for clamping the vacuum block is still reliable supplied with negative pressure. However, the shut-off valve protrudes partly outdoors and partly by the seal then the shut-off valve is not switched. Due to the wide seal, however, there is room for tension of the vacuum block does not have the shut-off valve with the Outside, that means connected to the environment.
- the bottom of the vacuum block in the locked room has ferromagnetic element. That way already by placing the suction cup on the Support base that under the ferromagnetic element itself shut-off valves are open.
- the ferromagnetic Element is within the boundary of the seal Space provided that all of those within that space themselves shut-off valves are opened.
- the Vacuum block is modular and has interchangeable Tops for different workpiece sizes. This has the essential advantage that for certain workpieces, e.g. very narrow workpieces, workpieces with difficult surfaces to be fixed, not a special one Vacuum block must be provided, only the Vacuum block must be provided with a special attachment.
- the support base can be a clamping beam or be a chuck table, the chuck table by several clamping modules that can be coupled to one another can be constructed. Because of the configuration according to the invention, the Vacuum block at any position on the clamping table be put on, there is no exact alignment of the Block vacuum needs.
- a suitable machine program can, for example, the required number of vacuum blocks calculated and the optimal positions of the Vacuum block on the clamping table for clamping the workpiece be determined. These positions can be created using, for example a laser beam can be displayed on the clamping table, so that the vacuum blocks can be positioned there. On in this way, the workpieces can be held optimally, on the other hand are optimally supported so that vibrations are largely avoided when machining the workpieces.
- the upper part is one with a total of 1 designated edition basis, in which a Shut-off valve 2 is arranged. Via this shut-off valve 2, which assumes its closed position in FIG. 1 becomes a Flow channel 3 opened or closed.
- a Shut-off valve 2 Via this shut-off valve 2, which assumes its closed position in FIG. 1 becomes a Flow channel 3 opened or closed.
- a total of 4 designated block suction over which a workpiece 5, for Example, a clamping plate or the like, sucked and can be held.
- the vacuum block 4 has on his Bottom 6 a circumferential seal 7, which a space 8th demarcates. Within this space 8 is at the bottom 6 a plate 9 made of ferromagnetic material for Example a steel plate, screwed tight.
- This plate 9 has a central opening 10, which with a Flow channel 11 is aligned.
- a sieve 12 Immediately behind the opening 10 there is a sieve 12.
- the seal 7 and the plate 9 are located on a
- FIG. 2 shows the underside 6 of the lower part 13 of the Block suction device and in particular the plate 9, which means four Screws 34 is attached to the lower part 13. In the middle there is the central opening 10. Around the plate 9 all around the seal 7 is a certain Width B.
- FIG. 3 shows a clamping table 42 as an embodiment of the Support base 1.
- This clamping table 42 is used in the present Embodiment of three modules 43 to 45 constructed, the can be plugged together with their long sides.
- the Modules have longitudinal flow channels 46 provided, into which the flow channels 3 open.
- the End faces 47 of modules 43 to 45 are connected to a collecting module 48 connected via which all flow channels 46 can be supplied with negative pressure. That way you can Clamping tables 42 can be constructed with almost any size.
- the flow channels 3 have a width b. Besides, is the greatest distance a between two adjacent shut-off valves 2 smaller than the smallest distance A opposite one another Seals 7 on the underside of the suction block 4 ( Figure 2). In this way it is ensured that when putting on a Block suction 4 on a clamping table 42 the room 8 on each Case over a shut-off valve 2, so that this is on can always be supplied with negative pressure.
- Shut-off valve 2 can be an electromagnetic or laser beam actuable valve, a touch valve or a Flow valve, which e.g. also have a bypass can be used.
Description
- Figur 1
- einen Längsschnitt durch einen Blocksauger sowie die Auflagebasis gemäß der Erfindung;
- Figur 2
- eine Ansicht auf die Unterseite des Blocksaugers; und
- Figur 3
- eine Draufsicht auf eine als Spanntisch ausgebildete Auflagebasis.
Claims (8)
- Vakuumspannsystem mit einer Auflagebasis (1) und einem auf eine Auflagefläche der Auflagebasis (1) aufsetzbaren Blocksauger (4) auf welchen zu spannende Werkstücke (5) auflegbar sind, wobei die Auflagebasis (1) mit Absperrventilen (2) versehen ist, über welche Luft absaugbar ist und dadurch der Blocksauger (4) und/oder das Werkstück (5) gespannt wird, und der Blocksauger (4) auf seiner auf der Auflagefläche aufliegenden Unterseite (6) eine wenigstens ein Absperrventil (2) umgrenzende Dichtung (7) aufweist, durch welche ein abgeschlossener Raum (8) gebildet wird, welcher über das Absperrventil (2) evakuierbar ist, wobei der Abstand (a) zweier Absperrventile (2) oder der Abstand (a) derer Strömungsquerschnitte in der Aufsetzebene der Auflagebasis (1) kleiner oder gleich groß ist, wie der Abstand (A) zweier einander gegenüber liegender, die Absperrventile (2) umgrenzender Dichtungen (7) oder zumindest zweier einander gegenüber liegender Dichtkanten der Dichtungen (7) des abgeschlossenen Raums (8) des Blocksaugers (4), dadurch gekennzeichnet, dass die Absperrventile (2) an einen einzigen Unterdruckkreis angeschlossen sind, dass das Spannen des Werkstücks (5) über den abgeschlossenen Raum (8) erfolgt, welcher zum Spannen des Blocksaugers (4) dient, und dass der Blocksauger (4) beliebige Positionen und Drehlagen auf der Auflagebasis (1) einnehmen kann.
- Vakuumspannsystem nach Anspruch 1, dadurch gekennzeichnet, dass die das Absperrventil (2) umgrenzende Dichtung (7) des Blocksaugers (4) breiter ist (Breite B) als die Breite (b) der Strömungskanäle (3) des Absperrventils (2).
- Vakuumspannsystem nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Unterseite (6) des Blocksauger (4) im abgeschlossenen Raum (8) ein ferromagnetisches Element (9), zum Beispiel eine aus ferromagnetischem Material bestehende Platte, aufweist.
- Vakuumspannsystem nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der Blocksauger (4) modular aufgebaut ist und austauschbare Oberteile (14) für unterschiedliche Werkstückgrößen aufweist.
- Vakuumspannsystem nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Auflagebasis (1) ein Spannbalken oder ein Spanntisch (42) ist, welcher insbesondere von einem oder mehreren koppelbaren Spannmodulen (43, 44, 45) gebildet wird.
- Vakuumspannsystem nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Position mehrerer Blocksauger (4) abhängig von der Form des Werkstücks (5) über ein Maschinenprogramm bestimmbar ist und insbesondere die Position z.B. über einen Laser auf der Auflagebasis (1) anzeigbar ist.
- Vakuumspannsystem nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Unterdruckversorgung des Blocksaugers schlauchlos erfolgt.
- Vakuumspannsystem nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das Absperrventil (2) ein elektromagnetisch oder durch Laserstrahl betätigbares Ventil, ein Strömungsventil oder ein Tastventil ist.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE29823472U DE29823472U1 (de) | 1997-10-22 | 1998-08-04 | Vakuumspannsystem |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19746497 | 1997-10-22 | ||
DE19746497A DE19746497C2 (de) | 1997-10-22 | 1997-10-22 | Vakuumspannsystem |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0911118A1 EP0911118A1 (de) | 1999-04-28 |
EP0911118B1 true EP0911118B1 (de) | 2004-05-26 |
Family
ID=7846183
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP98114648A Expired - Lifetime EP0911118B1 (de) | 1997-10-22 | 1998-08-04 | Vakuumspannsystem |
Country Status (3)
Country | Link |
---|---|
US (1) | US6095506A (de) |
EP (1) | EP0911118B1 (de) |
DE (2) | DE19746497C2 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
TWI409133B (zh) * | 2008-06-27 | 2013-09-21 | Hon Hai Prec Ind Co Ltd | 夾持裝置 |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE59812819D1 (de) * | 1997-10-22 | 2005-06-30 | Schmalz J Gmbh | Vakuumspannsystem |
US6328507B1 (en) * | 1998-08-04 | 2001-12-11 | Shoda Iron Works Co., Ltd | Working table apparatus for a cutting machine tool |
US6557443B1 (en) * | 1999-09-09 | 2003-05-06 | Larue Mark C. | Bar feeder for machining center |
US6196533B1 (en) * | 2000-01-31 | 2001-03-06 | Dennis M. Hudson | Sheet material work bench |
DE10023323A1 (de) * | 2000-05-12 | 2001-11-29 | Karl Goeckel | Tisch- oder konsolenartige Spanneinrichtung |
DE102005020801A1 (de) | 2005-04-28 | 2006-11-02 | Reich Spezialmaschinen Gmbh | Haltevorrichtung für zu bearbeitende Werkstücke sowie Vakuumspannsystem mit einer derartigen Haltevorrichtung |
DE102010038324B4 (de) * | 2010-07-23 | 2012-03-22 | Hilti Aktiengesellschaft | Vorrichtung zum Positionieren von Schneidpartikeln |
DE102013222377B3 (de) | 2013-11-04 | 2015-02-19 | J. Schmalz Gmbh | Sauggreifvorrichtung |
FR3021888B1 (fr) * | 2014-06-10 | 2016-07-01 | Thibaut | Dispositif de bridage d'une piece a travailler sur une table de travail |
CN206541819U (zh) * | 2017-03-29 | 2017-10-03 | 合肥鑫晟光电科技有限公司 | 一种贴合设备 |
DE102021102135B3 (de) | 2021-01-29 | 2022-05-25 | Daniel Brown | Vakuum-spannplatte |
EP4282578A1 (de) * | 2022-05-23 | 2023-11-29 | SCM Group S.p.A. | Blockiervorrichtung für werkstücke |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3520055A (en) * | 1967-04-26 | 1970-07-14 | Western Electric Co | Method for holding workpieces for radiant energy bonding |
DE3434329C1 (de) * | 1984-09-19 | 1986-04-30 | Horst Witte Entwicklungs- und Vertriebs KG, 2122 Bleckede | Vakuum-Spannvorrichtung zum Aufspannen von Werkstuecken auf Werkbaenken,Tischen oder dergleichen |
JPS61152499A (ja) * | 1984-12-27 | 1986-07-11 | 大日本スクリ−ン製造株式会社 | 硬質板の吸着、保持方法及びその方法の実施に使用する軟質シ−ト |
JP2501366B2 (ja) * | 1990-05-17 | 1996-05-29 | 株式会社 エフエスケー | 物体の保持装置 |
DE4221222A1 (de) * | 1992-06-27 | 1994-01-05 | Ottensteiner Kunststoff Gmbh | Vakuum-Aufspannvorrichtung zur Halterung von Werkstücken |
DE4404413C1 (de) * | 1994-02-11 | 1995-01-19 | Klessmann Ima Norte Maschfab | Vakuumspannvorrichtung |
US5562276A (en) * | 1994-09-14 | 1996-10-08 | Blick; John | Locator and hold down system for a machine |
US5553837A (en) * | 1995-01-17 | 1996-09-10 | Kahle; David A. | Vacuum workpiece holding device for a work table |
US5722646A (en) * | 1995-08-29 | 1998-03-03 | Cna Manufacturing Systems, Inc. | Flexible tooling apparatus |
US5853169A (en) * | 1995-10-24 | 1998-12-29 | O'sullivan Industries | Vacuum pod support system |
KR0176434B1 (ko) * | 1995-10-27 | 1999-04-15 | 이대원 | 진공 척 장치 |
DE29518188U1 (de) * | 1995-11-16 | 1996-01-11 | Schmalz J Gmbh | Blocksauger |
US5901426A (en) * | 1995-12-28 | 1999-05-11 | Honda Giken Kogyo Kabushiki Kaisha | Method of combining workpieces |
DE19613094C2 (de) * | 1996-04-01 | 1998-08-06 | Schmalz J Gmbh | Vorrichtung zum Spannen von Werkstücken |
-
1997
- 1997-10-22 DE DE19746497A patent/DE19746497C2/de not_active Expired - Fee Related
-
1998
- 1998-08-04 DE DE59811454T patent/DE59811454D1/de not_active Expired - Lifetime
- 1998-08-04 EP EP98114648A patent/EP0911118B1/de not_active Expired - Lifetime
- 1998-10-22 US US09/176,903 patent/US6095506A/en not_active Expired - Lifetime
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
TWI409133B (zh) * | 2008-06-27 | 2013-09-21 | Hon Hai Prec Ind Co Ltd | 夾持裝置 |
Also Published As
Publication number | Publication date |
---|---|
DE59811454D1 (de) | 2004-07-01 |
EP0911118A1 (de) | 1999-04-28 |
DE19746497A1 (de) | 1999-05-06 |
US6095506A (en) | 2000-08-01 |
DE19746497C2 (de) | 2000-04-06 |
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