EP4008481B1 - Dispositif de serrage - Google Patents
Dispositif de serrage Download PDFInfo
- Publication number
- EP4008481B1 EP4008481B1 EP21211952.3A EP21211952A EP4008481B1 EP 4008481 B1 EP4008481 B1 EP 4008481B1 EP 21211952 A EP21211952 A EP 21211952A EP 4008481 B1 EP4008481 B1 EP 4008481B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- clamping
- bearing section
- relative
- lift
- face
- 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
Links
- 239000002184 metal Substances 0.000 claims description 2
- 229910052751 metal Inorganic materials 0.000 claims description 2
- 239000004033 plastic Substances 0.000 claims description 2
- 229920003023 plastic Polymers 0.000 claims description 2
- 239000002023 wood Substances 0.000 claims description 2
- 239000002983 wood substitute Substances 0.000 claims description 2
- 238000006073 displacement reaction Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 230000000284 resting effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
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
- 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
- B25B5/06—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 clamping device according to the preamble of claim 1.
- Corresponding clamping devices which are used in particular as vertical clamps for clamping workpieces, are known from the prior art, for example from DE 101 08 134 A1 or EP 3 009 226 B1 or WO 2016/071351 A1 .
- All of these clamping devices have a first and a second clamping element with a first and second clamping surface, respectively, a workpiece can be clamped between the clamping surfaces.
- the workpiece has to be released from the clamping device, for example if it has to be re-clamped to process another side of the workpiece. Since this process is usually carried out manually, a possibility must be created to carry out this re-clamping as simply as possible, whereby the re-fixing of the workpiece usually also has to be carried out manually.
- the entire clamping device is usually moved from one location on which the clamping device is stored to another location. After moving, the clamping device must be returned to a state in which the workpiece can be clamped. It is important that the support level on the lower clamping element of the workpiece returns to the position it occupied before re-clamping.
- the object of the present invention is therefore to provide a clamping device of the type mentioned which makes this possible.
- the clamping device according to the invention which is in particular a vertical clamp, is used to clamp workpieces of all kinds, in particular those made of wood or wood substitutes, plastics, metals and the like.
- the clamping device has a first clamping element with a first clamping surface and a second clamping element with a second clamping surface facing the first clamping surface.
- the first clamping element and the second clamping element can be moved relative to one another in a clamping direction via a drive device for clamping or releasing a workpiece between the clamping surfaces.
- the clamping device according to the invention has a bearing section on which the second clamping element is attached with play and, in particular in the clamping direction, is guided displaceably within the play.
- the clamping device comprises a lifting device which is designed to move the second clamping element relative to the bearing section within the game, in particular parallel to the clamping direction.
- This relative displacement of the second clamping element relative to the bearing section within a predetermined clearance allows the support plane of the second clamping element to be displaced. If the clamping between the clamping device and the workpiece is released before this displacement, the workpiece can be clamped relatively quickly and the clamping device can be moved just as quickly. At the new position, the support level of the clamping device can then be returned to its original state.
- the bearing section is attached to a lower part.
- the lower part comprises a cylinder with a piston connected to the first clamping element, the piston being guided displaceably in the cylinder parallel to the clamping direction.
- the actual clamping process of the workpiece can be realized via this piston/cylinder arrangement.
- the cylinder can be set up in such a way that the first clamping surface is moved towards the second clamping surface by evacuating the cylinder.
- the cylinder can also be actuated by pressurization.
- the second clamping element and the bearing section are designed to be non-rotatable relative to one another. This ensures that turning the second clamping element during re-clamping does not leave any traces of friction on the workpiece.
- a lifting element which is rotatably mounted relative to the bearing section is arranged between the bearing section and the clamping element. The clamping element is raised within the game via this lifting element. The actuation of the clamping element, i.e. H. its adjustment in the lifting direction is brought about indirectly via the movement of the lifting element.
- At least one first lifting surface is arranged on the lifting element and at least one second lifting surface is arranged on the bearing section.
- These lifting surfaces are connected to each other in engagement so that they run on each other when the lifting element rotates. This is preferably done in such a way that the lifting surfaces interact with one another during relative rotation of the bearing section and the lifting element in such a way that the second clamping surface is raised or lowered relative to the first clamping surface.
- the lifting surfaces have rising and/or falling ramps relative to the plane of rotation of the bearing section and the lifting element.
- the element that interacts with the ramp on the other component is guided over the slope surface, in particular the inclined surface, of the ramp, so that the relative distance between the two components rotated relative to one another changes.
- the clamping device according to the invention has a releasable lock, in particular anti-rotation lock, which is designed to ensure a relative movement, in particular relative rotation, between the bearing section in the locked state and lifting element.
- Clamping device 1 shown has a first, upper clamping element 2 with a first clamping surface 2a and a second, lower clamping element 7f with a second clamping surface 7a. These can be moved relative to one another via a piston 3.
- the piston 3 is mounted displaceably in a cylinder 9 parallel to the vertical direction Z or generally in a stroke direction.
- the entire clamping device 1 can be arranged as a unit, for example via a foot part 11, on a substructure arrangement 12 (otherwise not shown) and can also be moved thereon.
- the piston 3 is guided in a bearing section 5.
- the second clamping element 7f is non-rotatable or at least not significantly rotatable, but is mounted with play at least in the vertical direction Z.
- a lifting element 7e is arranged below the second clamping element 7f, which here - as in particular the sectional drawings of Figures 2 and 3 show - is arranged between the second clamping element 7f and the bearing section 5.
- the lifting element 7e can be rotated relative to the second clamping element 7f about an axis of rotation parallel to the vertical axis Z.
- a lock 6 here provided, which in the example shown is designed as a lever in the form of an anti-rotation device.
- the second clamping element 7f is attached to the bearing section 5, being fixed via at least one securing section, which preferably has the shape of a set screw 7d and which engages in a recess 5a of the bearing section 5.
- the recess 5a has a vertical play, as a comparison of the thickness of the threaded pin 7d with the width of the recess 5a measured in the vertical direction Z shows. This play allows a slight movement of the clamping element 7f with its clamping surface 7a in the direction Z.
- the clamping element 7f is otherwise mounted in a rotationally fixed manner relative to the bearing section 5.
- the threaded pin 7d is pressed against the upper wall of the recess 5a, viewed in the vertical direction, which can be, for example, an annular recess.
- corresponding lifting means 7b and 5b are arranged both on the lifting element 7e and on the bearing section 5.
- these can be ramps, shafts, cams or comparable surfaces that slide over one another during a relative rotational movement between the lifting element 7e and the bearing section 5.
- the lifting element 7e is raised or lowered.
- raised areas 5b and 7b of bearing section 5 and lifting element 7e lie opposite each other, so that the maximum stroke is set here.
- a further locking recess for engaging the lever 6 can be arranged on the component 9, which corresponds to the position in which the lifting element 7b and thus also the clamping element 7f are in the lowered position, which is in the Figures 3 or 5 is shown.
- the reference number 9 denotes a cylinder to which the bearing section 5 is attached and in whose displacement 10 the piston 3 can be moved back and forth.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Jigs For Machine Tools (AREA)
Claims (8)
- Dispositif de serrage (1), surtout tendeur vertical, pour serrer des pièces (4), surtout ceux en bois ou en matériaux de substitution du bois, en matière plastique, en métal, comportant:un premier élément de serrage (2) avec une première surface de serrage (2a),un deuxième élément de serrage (7f) avec une deuxième surface de serrage (7a) tournée vers la première surface de serrage (2a),dans lequel le premier élément de serrage (2) et le deuxième élément de serrage (7f) sont mobiles l'un par rapport à l'autre par l'intermédiaire d'un dispositif d'entraînement dans une direction de serrage (Z) pour serrer ou desserrer une pièce (4) entre les surfaces de serrage (2a, 7a),une section de palier (5), sur laquelle le deuxième élément de serrage (7f) est monté avec du jeu, et en particulier dans la direction de serrage (Z) est guidé de manière coulissante à l'intérieur du jeu,dans lequel le dispositif de serrage (1) comprend un dispositif de levage (5b, 6, 7b, 7e), qui est conçu pour déplacer le deuxième élément de serrage (7f) par rapport à la section de palier (5) à l'intérieur du jeu, en particulier parallèlement à la direction de serrage (Z), dans lequel le deuxième élément de serrage (7f) et la section de palier (5) sont réalisés de manière à ne pas pouvoir tourner l'un par rapport à l'autre,caractérisé en cequ'entre la section de palier (5) et l'élément de serrage (7f) un élément de levage (7e) monté à rotation par rapport à la section de palier est disposé.
- Dispositif de serrage (1) selon la revendication 1,
caractérisé en ce
que la section de palier (5) est montée sur une partie inférieure (9). - Dispositif de serrage (1) selon la revendication 2,
caractérisé en ce
que la partie inférieure comporte un cylindre (9) avec un piston (3) relié au premier élément de serrage (2), dans lequel le piston (3) est guidé de manière coulissante dans le cylindre (9) parallèlement à la direction de serrage (Z). - Dispositif de serrage (1) selon la revendication 3,
caractérisé en ce
que le cylindre (9) est mis en place de telle sorte que la mise sous vide du cylindre déplace la première surface de serrage (2a) vers la seconde surface de serrage (7a). - Dispositif de serrage (1) selon l'une quelconque des revendications précédentes,
caractérisé en ce
qu'une rotation relative entre l'élément de levage (7e) et la section de palier (5) provoque le soulèvement ou l'abaissement de la deuxième surface de serrage (7a) par rapport à la première surface de serrage (2a). - Dispositif de serrage (1) selon la revendication 5,
caractérisé en ce
qu'au moins une première surface de levage (7b) est agencée à l'élément de levage (7e) et au moins une deuxième surface de levage (7b) est agencée à la section de palier (5), dans lequel, lors de la rotation relative de la section de palier(5) et de l'élément de levage (7e), les surfaces de levage (5b,7b) coopèrent l'une avec l'autre de telle sorte que la deuxième surface de serrage (7a) est soulevée ou abaissée par rapport à la première surface de serrage (2a). - Dispositif de serrage (1) selon la revendication 6,
caractérisé en ce
que les surfaces de levage (5b, 7b) présentent des rampes ascendantes et/ou descendantes par rapport au plan de rotation de la section de palier (5) et de l'élément de levage (7e). - Dispositif de serrage (1) selon l'une quelconque des revendications précédentes,
caractérisé en ce
qu'il comprend un dispositif de sécurité amovible, surtout un dispositif anti-torsion (6), qui est conçu pour empêcher, à l'état bloqué, un mouvement relatif, en particulier une rotation relative, entre la section de palier (5) et l'élément de levage (7e).
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102020132391.3A DE102020132391A1 (de) | 2020-12-07 | 2020-12-07 | Spanneinrichtung |
Publications (3)
Publication Number | Publication Date |
---|---|
EP4008481A1 EP4008481A1 (fr) | 2022-06-08 |
EP4008481C0 EP4008481C0 (fr) | 2024-02-07 |
EP4008481B1 true EP4008481B1 (fr) | 2024-02-07 |
Family
ID=78821054
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP21211952.3A Active EP4008481B1 (fr) | 2020-12-07 | 2021-12-02 | Dispositif de serrage |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP4008481B1 (fr) |
DE (1) | DE102020132391A1 (fr) |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19938851B4 (de) | 1999-08-17 | 2005-04-07 | Gustav Weeke Maschinenbau Gmbh | Vorrichtung zum Spannen von Werkstücken |
IT1320885B1 (it) | 2000-02-22 | 2003-12-10 | Biesse Spa | Macchina per la lavorazione di pannelli di legno o similari |
ITBO20070141A1 (it) * | 2007-03-02 | 2008-09-03 | Grandi Progetti S R L | Macchina per la lavorazione di componenti di legno o simili |
EP1990135B1 (fr) | 2007-05-11 | 2009-11-04 | Homag Holzbearbeitungssysteme AG | Dispositif de serrage de pièce |
DE102014211433A1 (de) | 2014-06-16 | 2015-12-17 | Schaeffler Technologies AG & Co. KG | Linearaktuator |
EP3009226B1 (fr) | 2014-10-13 | 2017-01-11 | Biesse S.p.A. | Dispositif de serrage pour plaque sur une surface de travail d'un appareil de traitement, en particulier pour plaques de traitement de petites dimensions, notamment en verre ou en pierre et en bois |
DE102014222423A1 (de) | 2014-11-03 | 2016-05-04 | Homag Holzbearbeitungssysteme Gmbh | Spannvorrichtung |
-
2020
- 2020-12-07 DE DE102020132391.3A patent/DE102020132391A1/de active Pending
-
2021
- 2021-12-02 EP EP21211952.3A patent/EP4008481B1/fr active Active
Also Published As
Publication number | Publication date |
---|---|
EP4008481C0 (fr) | 2024-02-07 |
DE102020132391A1 (de) | 2022-06-09 |
EP4008481A1 (fr) | 2022-06-08 |
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