EP3593946A1 - Workpiece tensioner, processing device and clamping method - Google Patents

Workpiece tensioner, processing device and clamping method Download PDF

Info

Publication number
EP3593946A1
EP3593946A1 EP19185985.9A EP19185985A EP3593946A1 EP 3593946 A1 EP3593946 A1 EP 3593946A1 EP 19185985 A EP19185985 A EP 19185985A EP 3593946 A1 EP3593946 A1 EP 3593946A1
Authority
EP
European Patent Office
Prior art keywords
clamping
workpiece
securing
workpiece clamp
locking device
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
EP19185985.9A
Other languages
German (de)
French (fr)
Other versions
EP3593946B1 (en
Inventor
Klaus Reich
Martin Gringel
Jörg Martinetz
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.)
J Schmalz GmbH
Homag GmbH
Original Assignee
Homag 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 GmbH filed Critical Homag GmbH
Priority to PL19185985T priority Critical patent/PL3593946T3/en
Publication of EP3593946A1 publication Critical patent/EP3593946A1/en
Application granted granted Critical
Publication of EP3593946B1 publication Critical patent/EP3593946B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • B25B5/00—Clamps
    • B25B5/02—Clamps with sliding jaws
    • 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
    • B25B5/16—Details, e.g. jaws, jaw attachments
    • B25B5/166—Slideways; Guiding and/or blocking means for jaws thereon

Definitions

  • the invention relates to a workpiece clamp according to the preamble of claim 1, as well as a machining device with such a workpiece clamp and a clamping method using such a workpiece clamp.
  • machining workpieces When machining workpieces, they are usually fixed with suitable clamping devices, for example on a machining table or a conveyor.
  • suitable clamping devices for example on a machining table or a conveyor.
  • a wide variety of workpiece clamps are used for this purpose, for example in the furniture and component industry often pneumatically or optionally also hydraulically operated workpiece clamps are used.
  • a workpiece clamp of the type in question here is, for example, in FIG DE 10 2014 216 638 A1 disclosed.
  • the workpiece clamp according to the invention is characterized in that it has a securing device which is set up to prevent undesired unlocking of the locking device.
  • a securing device which is set up to prevent undesired unlocking of the locking device.
  • the securing device has a securing element which can be fixed in a securing position in which a unwanted unlocking of the locking device is prevented.
  • the securing device has an actuating element which is set up to fix the securing element in the securing position. This further increases the user-friendliness, since the actuating element enables an operator to easily access it.
  • the actuating element can be operated without tools.
  • the operator does not always have to carry a suitable tool with him and place it in the right place, but can directly - for example with one hand - actuate the securing device in order to unlock or lock the locking device.
  • This also has the advantage that the operator then "still has one hand free” with which he can, for example, adjust the maximum distance between the clamping surfaces before the locking device is locked again by means of the securing device. All in all, this results in a drastically increased user friendliness combined with high operational reliability.
  • the actuating element can be designed in a wide variety of ways within the scope of the invention. To achieve tool-free operability, it is provided according to a development of the invention that the actuating element has at least one load application point for an operator, the lever arm of which is preferably at least ten times larger than a lever arm, in particular radius, of the securing element. This ensures that a sufficient force or torque can also be applied manually to the actuating element, so that the securing device adequately secured, but is still easy to use or operate.
  • the actuating element can have, for example, a disk and / or a lever in order to provide the at least one load application point. This gives the actuating element a very simple construction with a high degree of user-friendliness.
  • the securing element is set up to unlock the locking device by means of a lifting movement as soon as it is released by the actuating element.
  • the actuating element is arranged in such a way that, when actuated by a user, a lifting movement of the securing element is caused.
  • the workpiece clamp has a scale in order to facilitate the setting of the maximum distance between the clamping surfaces. This measure also increases both the operational reliability and the user-friendliness of the workpiece clamp according to the invention.
  • the workpiece clamp has an actuator that is set up, at least one clamping element to move between the open position and the clamping position. This results in a simple and effective clamping process.
  • the workpiece clamp according to the invention is also used. This is characterized by first defining a workpiece to be clamped and then determining the workpiece thickness to be clamped. On this basis, it is checked whether the maximum distance between the clamping surfaces exceeds the workpiece thickness of a maximum gap dimension. If this is the case, the maximum distance between the clamping surfaces is reduced accordingly. Operational safety can thus be increased in a simple manner.
  • the locking device in order to reduce the maximum distance between the clamping surfaces, is first unlocked by means of the securing device in order to subsequently reduce or set the maximum distance between the clamping surfaces. Finally, the locking device is locked again by means of the securing device, so that an undesired adjustment of the maximum distance and a corresponding risk of injury is avoided.
  • Fig. 1 shows schematically a sectional view of an embodiment of the workpiece clamp according to the invention.
  • FIG. 1 A workpiece clamp 1 as a preferred embodiment of the invention is shown in FIG Fig. 1 represented schematically in a sectional view.
  • the workpiece clamp is used for clamping workpieces which at least in sections consist of wood, wood-based materials, plastic or the like, as are widely used in the field of furniture and structural elements.
  • the workpiece clamp 1 can be used in a processing device, not shown, in which case a plurality of workpiece clamps are usually provided.
  • a machining device additionally has at least one machining unit for machining the workpieces and a conveyor unit for bringing about a relative movement between the at least one workpiece clamp and the machining unit.
  • the processing unit can be, for example, a cutting processing unit or a unit for coating the workpiece surface (for example with an edge material).
  • the conveying unit can be, for example, a continuous conveying device in which the clamps are conveyed through the device in one pass direction during processing with the workpieces - if necessary clocked. Alternatively or additionally, the conveyor unit can also serve to move the processing unit in order to carry out processing on the workpieces. Various combinations of these concepts are also possible.
  • the workpiece clamp 1 has a first, upper clamping element 2 and a second, lower clamping element 4, each of which has a clamping surface 2 'or 4'.
  • the clamping surfaces 2 ', 4' serve to clamp a workpiece W.
  • the first clamping element 2 is between a clamping position and an opening position, as shown in FIG Fig. 1 is shown, movable.
  • the second clamping element 4 could also be movable between a clamping position and an opening position. If necessary, both clamping elements 2, 4 can also be moved.
  • the first clamping element 2 is connected via a piston rod 6 to a drive, not shown, which can be, for example, a pneumatic or hydraulic actuator.
  • a drive not shown
  • the first clamping element 2 is between the in Fig. 1 shown opening position and a clamping position in which the workpiece W is clamped between the clamping surfaces 2 ', 4', movable.
  • the workpiece clamp 1 has a locking device 10 which defines a maximum distance between the clamping surfaces 2 ', 4'.
  • the locking device 10 can be unlocked.
  • the upper clamping surface 2 can be raised or lowered without actuating the actuator in order to adjust the maximum distance between the clamping surfaces 2 ', 4'.
  • a scale 6 ' is provided on the piston rod 6 in the present embodiment.
  • the locking device 10 can have various non-positive and / or positive elements which, when the locking device 10 is in the unlocked state, allow the maximum distance between the clamping surfaces 2 ', 4' to be adjusted, but in the locked state ensure reliable locking of the maximum distance ,
  • the workpiece clamp 1 also has a securing device 20, which in the present embodiment has a rod-shaped securing element 22 and an essentially disk-shaped actuating element 24, which are connected to one another by a screw 26.
  • the actuating element 24 has (imaginary) load application points 28 for an operator on its outer circumference.
  • the radius R of the actuating element 24, which extends towards the load application points 28, is ten times larger than the radius r of the securing element 22 in the present embodiment.
  • the actuating element can be operated without tools, ie an operator can manually rotate the longitudinal axis of the securing element 22 apply in order to actuate the securing device in this way, in order to finally unlock or lock the locking device 10.
  • This process can be carried out, for example, simply by rotating the actuating element 24.
  • a two-stage actuation is provided, in which the securing element 22 is first released by rotating the actuating element 24, in order to then unlock or lock the locking device 10 by pressing or pulling (along the longitudinal axis of the securing element 22) ,
  • this unlocking means that the maximum distance between the clamping surfaces 2 ', 4' can be adjusted if necessary.
  • the workpiece clamp 1 is then operated, for example, as follows. If the workpieces to be clamped are changed, the thickness of the workpieces to be clamped must first be determined, for example by measuring the workpiece thickness or by reading the workpiece thickness from a table, a display of the machine or the like. On this basis, it is checked whether the maximum distance between the clamping surfaces 2 ', 4' exceeds the workpiece thickness plus a maximum gap dimension, which can be 5 mm, for example. If this is the case, the maximum distance between the clamping surfaces 2 ', 4' is reduced.
  • the actuating element 24 is first rotated about the longitudinal axis of the securing element 29 in order to release the securing element 22.
  • the actuating element 24 is then pressed down along the longitudinal axis of the securing element 22, so that the securing element 22 executes a lifting movement.
  • This lifting movement unlocks the locking device 10, so that the maximum distance between the clamping surfaces 2 ', 4' can now be adjusted.
  • the locking device 10 is then locked again, for example by an opposite rotational movement of the actuating element 22.
  • the desired workpiece can now be inserted into the area between the clamping surfaces 2 ', 4'.
  • the workpiece W can then be clamped by the actuator lowering the upper clamping element 2 and applying a clamping force to the workpiece W.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Jigs For Machine Tools (AREA)

Abstract

Werkstückspanner (1) zum Spannen von Werkstücken, die bevorzugt zumindest abschnittsweise aus Holz, Holzwerkstoffen, Kunststoff oder dergleichen bestehen, umfassend: ein erstes Spannelement (2) und ein zweites Spannelement (4), die jeweils eine Spannfläche (2', 4') aufweisen, um ein Werkstück zwischen den Spannflächen zu spannen, wobei das erste und das zweite Spannelement (2', 4') zwischen einer Spannposition und einer Öffnungsposition relativ zueinander verfahrbar sind, und eine Verriegelungseinrichtung (10), die den maximalen Abstand der Spannflächen (2', 4') definiert, wobei die Verriegelungseinrichtung (10) entriegelbar ist, um den maximalen Abstand der Spannflächen (2', 4') einzustellen, dadurch gekennzeichnet, dass der Werkstückspanner eine Sicherungseinrichtung (20) aufweist, die eingerichtet ist, ein unerwünschtes Entriegeln der Verriegelungseinrichtung (10) zu verhindern.

Figure imgaf001
Workpiece clamp (1) for clamping workpieces, which preferably consist at least in sections of wood, wood materials, plastic or the like, comprising: a first clamping element (2) and a second clamping element (4), each of which has a clamping surface (2 ', 4') to clamp a workpiece between the clamping surfaces, the first and second clamping elements (2 ', 4') being movable relative to each other between a clamping position and an opening position, and a locking device (10) which detects the maximum distance between the clamping surfaces ( 2 ', 4'), the locking device (10) being unlockable in order to set the maximum distance between the clamping surfaces (2 ', 4'), characterized in that the workpiece clamp has a securing device (20) which is set up a to prevent unwanted unlocking of the locking device (10).
Figure imgaf001

Description

Technisches GebietTechnical field

Die Erfindung betrifft einen Werkstückspanner nach dem Oberbegriff von Anspruch 1, sowie eine Bearbeitungsvorrichtung mit einem solchen Werkstückspanner und ein Spannverfahren unter Einsatz eines solchen Werkstückspanners.The invention relates to a workpiece clamp according to the preamble of claim 1, as well as a machining device with such a workpiece clamp and a clamping method using such a workpiece clamp.

Stand der TechnikState of the art

Bei der Bearbeitung von Werkstücken werden diese üblicherweise mit geeigneten Spannmitteln fixiert, beispielsweise an einem Bearbeitungstisch oder einer Fördereinrichtung. Hierfür kommen unterschiedlichste Werkstückspanner zum Einsatz, wobei beispielsweise im Bereich der Möbel- und Bauelementeindustrie häufig pneumatisch oder gegebenenfalls auch hydraulisch betätigte Werkstückspanner zum Einsatz kommen. Ein Werkstückspanner der hier zur Rede stehenden Art ist beispielsweise in der DE 10 2014 216 638 A1 offenbart.When machining workpieces, they are usually fixed with suitable clamping devices, for example on a machining table or a conveyor. A wide variety of workpiece clamps are used for this purpose, for example in the furniture and component industry often pneumatically or optionally also hydraulically operated workpiece clamps are used. A workpiece clamp of the type in question here is, for example, in FIG DE 10 2014 216 638 A1 disclosed.

Beim Einsatz pneumatischer oder hydraulischer Spannmittel gelten strenge Sicherheitsvorschriften, beispielsweise hinsichtlich des Fingerklemmschutzes. So darf der zwischen den Spannflächen eines Spannelements vorhandene Spalt üblicherweise ein bestimmtes Maß nicht überschreiten, damit vor Einleitung des Spannvorganges das Einquetschen von Fingern ausgeschlossen ist. Zu diesem Zweck sind Werkstückspanner bekannt, bei denen der maximale Abstand der Spannflächen eingestellt bzw. begrenzt werden kann, um den Sicherheitsanforderungen zu genügen. Allerdings sind bekannte Werkstückspanner nicht sehr bedienerfreundlich und weisen drüber hinaus Verbesserungspotential bei derWhen using pneumatic or hydraulic clamping devices, strict safety regulations apply, for example with regard to finger pinch protection. For example, the gap between the clamping surfaces of a clamping element must usually not exceed a certain dimension, so that fingers cannot be pinched before the clamping process is initiated. For this purpose, workpiece clamps are known in which the maximum distance between the clamping surfaces can be set or limited in order to meet the safety requirements. However, known workpiece clamps are not very user-friendly and show In addition, there is room for improvement at

Betriebssicherheit auf.Operational safety.

Darstellung der ErfindungPresentation of the invention

Es ist daher Aufgabe der Erfindung, einen Werkstückspanner der eingangs genannten Art breitzustellen, der bei hoher Betriebssicherheit einfach zu bedienen ist.It is therefore an object of the invention to provide a workpiece clamp of the type mentioned at the outset which is easy to operate with high operational reliability.

Diese Aufgabe wird erfindungsgemäß durch einen Werkstückspanner nach Anspruch 1 gelöst. Darüber hinaus stellt die Erfindung eine Bearbeitungsvorrichtung nach Anspruch 11 sowie ein Spannverfahren nach Anspruch 12 bereit. Besonders bevorzugte Ausführungsformen der Erfindung sind in den abhängigen Ansprüchen angegeben.This object is achieved by a workpiece clamp according to claim 1. In addition, the invention provides a processing device according to claim 11 and a clamping method according to claim 12. Particularly preferred embodiments of the invention are specified in the dependent claims.

Der erfindungsgemäße Werkstückspanner zeichnet sich dadurch aus, dass er eine Sicherungseinrichtung aufweist, die eingerichtet ist, ein unerwünschtes Entriegeln der Verriegelungseinrichtung zu verhindern. Hierdurch lässt sich die Betriebssicherheit des erfindungsgemäßen Werkstückspanners erheblich steigern, da selbst bei häufiger Anpassung des maximalen Abstands der Spannflächen sichergestellt wird, dass die Verriegelungseinrichtung tatsächlich verriegelt ist und nicht versehentlich ein vergrößerter Spalt entsteht, der eine erhebliche Verletzungsgefahr, insbesondere durch Fingerquetschen mit sich bringt. Gleichzeitig bleibt die Bedienerfreundlichkeit erhalten, da die Sicherungseinrichtung direkt mit der Verriegelungseinrichtung verknüpft ist.The workpiece clamp according to the invention is characterized in that it has a securing device which is set up to prevent undesired unlocking of the locking device. In this way, the operational safety of the workpiece clamp according to the invention can be increased considerably, since even with frequent adaptation of the maximum distance between the clamping surfaces, it is ensured that the locking device is actually locked and that an enlarged gap does not inadvertently arise, which entails a considerable risk of injury, in particular by squeezing fingers. At the same time, the user-friendliness is retained, since the security device is directly linked to the locking device.

Diese direkte Verknüpfung mit entsprechender Bedienerfreundlichkeit ergibt sich insbesondere, wenn gemäß einer Weiterbildung der Erfindung die Sicherungseinrichtung ein Sicherungselement aufweist, das in einer Sicherungsstellung festsetzbar ist, in welcher ein unerwünschtes Entriegeln der Verriegelungseinrichtung verhindert ist.This direct link with corresponding user-friendliness results in particular if, according to a further development of the invention, the securing device has a securing element which can be fixed in a securing position in which a unwanted unlocking of the locking device is prevented.

Darüber hinaus ist gemäß einer Weiterbildung der Erfindung vorgesehen, dass die Sicherungseinrichtung ein Betätigungselement aufweist, das eingerichtet ist, das Sicherungselement in der Sicherungsstellung festzusetzen. Hierdurch wird die Bedienerfreundlichkeit weiter gesteigert, da das Betätigungselement einen einfachen Zugriff einer Bedienperson ermöglicht.In addition, according to a development of the invention, it is provided that the securing device has an actuating element which is set up to fix the securing element in the securing position. This further increases the user-friendliness, since the actuating element enables an operator to easily access it.

Dabei ist es besonders bevorzugt, dass das Betätigungselement werkzeuglos bedienbar ist. Hierdurch muss die Bedienperson nicht stets ein passendes Werkzeug mit sich führen und an der richtigen Stelle ansetzen, sondern kann direkt - beispielsweise mit einer Hand - die Sicherungseinrichtung betätigen, um die Verriegelungseinrichtung zu entriegeln bzw. zu verriegeln. Dies besitzt auch den Vorteil, dass die Bedienperson dann "noch eine Hand frei" hat, mit der sie beispielsweise den maximalen Abstand der Spannflächen anpassen kann, bevor die Verriegelungseinrichtung mittels der Sicherungseinrichtung wieder verriegelt wird. In der Summe ergibt sich hieraus eine drastisch erhöhte Bedienerfreundlichkeit bei gleichzeitig hoher Betriebssicherheit.It is particularly preferred that the actuating element can be operated without tools. As a result, the operator does not always have to carry a suitable tool with him and place it in the right place, but can directly - for example with one hand - actuate the securing device in order to unlock or lock the locking device. This also has the advantage that the operator then "still has one hand free" with which he can, for example, adjust the maximum distance between the clamping surfaces before the locking device is locked again by means of the securing device. All in all, this results in a drastically increased user friendliness combined with high operational reliability.

Das Betätigungselement kann im Rahmen der Erfindung auf unterschiedlichste Art und Weise ausgestaltet sein. Zur Erzielung einer werkzeuglosen Bedienbarkeit ist gemäß einer Weiterbildung der Erfindung vorgesehen, dass das Betätigungselement mindestens einen Lastangriffspunkt für eine Bedienperson aufweist, dessen Hebelarm bevorzugt mindestens zehnmal größer ist als ein Hebelarm, insbesondere Radius, des Sicherungselements. Hierdurch wird erreicht, dass sich auch manuell eine ausreichende Kraft bzw. ein ausreichendes Drehmoment auf das Betätigungselement aufgebracht werden kann, sodass die Sicherungseinrichtung ausreichen gesichert, aber dennoch einfach zu bedienen bzw. zu betätigen ist. Dabei kann das Betätigungselement beispielsweise eine Scheibe und/oder einen Hebel aufweisen, um den mindestens einen Lastangriffspunkt bereitzustellen. Hierdurch erhält das Betätigungselement eine sehr einfache Konstruktion bei hoher Bedienerfreundlichkeit.The actuating element can be designed in a wide variety of ways within the scope of the invention. To achieve tool-free operability, it is provided according to a development of the invention that the actuating element has at least one load application point for an operator, the lever arm of which is preferably at least ten times larger than a lever arm, in particular radius, of the securing element. This ensures that a sufficient force or torque can also be applied manually to the actuating element, so that the securing device adequately secured, but is still easy to use or operate. The actuating element can have, for example, a disk and / or a lever in order to provide the at least one load application point. This gives the actuating element a very simple construction with a high degree of user-friendliness.

Alternativ oder zusätzlich ist gemäß einer Weiterbildung der Erfindung vorgesehen, dass das Sicherungselement eingerichtet ist, die Verriegelungseinrichtung durch eine Hubbewegung zu entriegeln, sobald es durch das Betätigungselement freigegeben ist. Hierdurch ergibt sich ein zweistufiges Bedienungskonzept der Sicherungseinrichtung, bei welcher das Sicherungselement zunächst - vorzugsweise manuell - durch Betätigung des Betätigungselements freigegeben wird und anschließend die eigentliche Entriegelung der Verriegelungseinrichtung durch eine Hubbewegung des Sicherungselements erfolgt. Dies führt dazu, dass ein unerwünschtes Entriegeln der Verriegelungseinrichtung praktisch ausgeschlossen ist, während die Bedienerfreundlichkeit weiterhin hoch ist.Alternatively or additionally, it is provided according to a further development of the invention that the securing element is set up to unlock the locking device by means of a lifting movement as soon as it is released by the actuating element. This results in a two-stage operating concept of the securing device, in which the securing element is first released, preferably manually, by actuating the actuating element, and then the locking device is actually unlocked by a lifting movement of the securing element. This means that an undesired unlocking of the locking device is practically impossible, while the user friendliness remains high.

Diese Vorteile sind besonders ausgeprägt, wenn gemäß einer Weiterbildung der Erfindung das Betätigungselement derart angeordnet ist, um bei Betätigung durch einen Benutzer eine Hubbewegung des Sicherungselements zu veranlassen.These advantages are particularly pronounced if, according to a further development of the invention, the actuating element is arranged in such a way that, when actuated by a user, a lifting movement of the securing element is caused.

Darüber hinaus ist gemäß einer Weiterbildung der Erfindung vorgesehen, dass der Werkstückspanner eine Skala aufweist, um die Einstellung des maximalen Abstands der Spannflächen zu erleichtern. Auch diese Maßnahme steigert sowohl die Betriebssicherheit als auch die Bedienerfreundlichkeit des erfindungsgemäßen Werkstückspanners.In addition, according to a development of the invention, it is provided that the workpiece clamp has a scale in order to facilitate the setting of the maximum distance between the clamping surfaces. This measure also increases both the operational reliability and the user-friendliness of the workpiece clamp according to the invention.

Ferner ist gemäß einer Weiterbildung der Erfindung vorgesehen, dass der Werkstückspanner einen Stellantrieb aufweist, der eingerichtet ist, mindestens ein Spannelement zwischen der Öffnungsposition und der Spannposition zu verfahren. Hierdurch ergibt sich ein einfacher und wirksamer Spannvorgang.Furthermore, according to a development of the invention, it is provided that the workpiece clamp has an actuator that is set up, at least one clamping element to move between the open position and the clamping position. This results in a simple and effective clamping process.

Die oben genannten Vorteile sind besonders ausgeprägt, wenn der erfindungsgemäße Werkstückspanner in einer Bearbeitungsvorrichtung nach Anspruch 11 zum Einsatz kommt.The advantages mentioned above are particularly pronounced when the workpiece clamp according to the invention is used in a processing device according to claim 11.

Bei dem erfindungsgemäßen Spannverfahren nach Patentanspruch 12 kommt der erfindungsgemäße Werkstückspanner ebenfalls zum Einsatz. Dieses zeichnet sich dadurch aus, dass zunächst ein zu spannendes Werkstück definiert und anschließend die zu spannende Werkstückdicke ermittelt wird. Auf dieser Grundlage wird überprüft, ob der maximale Abstand der Spannflächen die Werkstückdicke zusätzlich eines maximalen Spaltmaßes überschreitet. Sofern dies der Fall ist, wird der maximale Abstand der Spannflächen entsprechend reduziert. Somit kann auf einfache Weise die Betriebssicherheit erhöht werden.In the clamping method according to the invention according to claim 12, the workpiece clamp according to the invention is also used. This is characterized by first defining a workpiece to be clamped and then determining the workpiece thickness to be clamped. On this basis, it is checked whether the maximum distance between the clamping surfaces exceeds the workpiece thickness of a maximum gap dimension. If this is the case, the maximum distance between the clamping surfaces is reduced accordingly. Operational safety can thus be increased in a simple manner.

Dabei ist es besonders bevorzugt, dass zum Reduzieren des maximalen Abstands der Spannflächen zunächst die Verriegelungseinrichtung mittels der Sicherungseinrichtung entriegelt wird, um anschließend den maximalen Abstand der Spannflächen zu reduzieren bzw. einzustellen. Abschließend wird die Verriegelungseinrichtung mittels der Sicherungseinrichtung wieder verriegelt, sodass ein unerwünschtes Verstellen des maximalen Abstands und eine entsprechende Verletzungsgefahr vermieden wird.It is particularly preferred that, in order to reduce the maximum distance between the clamping surfaces, the locking device is first unlocked by means of the securing device in order to subsequently reduce or set the maximum distance between the clamping surfaces. Finally, the locking device is locked again by means of the securing device, so that an undesired adjustment of the maximum distance and a corresponding risk of injury is avoided.

Kurze Beschreibung der ZeichnungenBrief description of the drawings

Fig. 1 zeigt schematisch eine Schnittansicht einer Ausführungsform des erfindungsgemäßen Werkstückspanners. Fig. 1 shows schematically a sectional view of an embodiment of the workpiece clamp according to the invention.

Ausführliche Beschreibung bevorzugter AusführungsformenDetailed description of preferred embodiments

Bevorzugte Ausführungsformen der Erfindung werden nachfolgend ausführlich unter Bezugnahme auf die begleitende Zeichnung beschrieben.Preferred embodiments of the invention are described in detail below with reference to the accompanying drawings.

Ein Werkstückspanner 1 als bevorzugte Ausführungsform der Erfindung ist in Fig. 1 schematisch in einer Schnittansicht dargestellt. Der Werkstückspanner dient in der vorliegenden Ausführungsform zum Spannen von Werkstücken, die zumindest abschnittsweise aus Holz, Holzwerkstoffen, Kunststoff oder dergleichen bestehen, wie sie im Bereich der Möbel- und Bauelemente verbreitet zum Einsatz kommen. Zu diesem Zweck kann der Werkstückspanner 1 in einer nicht gezeigten Bearbeitungsvorrichtung zum Einsatz kommen, wobei dann meist mehrere Werkstückspanner vorgesehen werden. Eine solche Bearbeitungsvorrichtung weist zusätzlich zumindest noch eine Bearbeitungseinheit zum Bearbeiten der Werkstücke sowie eine Fördereinheit zum Herbeiführen einer Relativbewegung zwischen dem mindestens einen Werkstückspanner und der Bearbeitungseinheit auf.A workpiece clamp 1 as a preferred embodiment of the invention is shown in FIG Fig. 1 represented schematically in a sectional view. In the present embodiment, the workpiece clamp is used for clamping workpieces which at least in sections consist of wood, wood-based materials, plastic or the like, as are widely used in the field of furniture and structural elements. For this purpose, the workpiece clamp 1 can be used in a processing device, not shown, in which case a plurality of workpiece clamps are usually provided. Such a machining device additionally has at least one machining unit for machining the workpieces and a conveyor unit for bringing about a relative movement between the at least one workpiece clamp and the machining unit.

Bei der Bearbeitungseinheit kann es sich beispielsweise um eine spanende Bearbeitungseinheit oder um eine Einheit zum Beschichten der Werkstückoberfläche (beispielweise mit einem Kantenmaterial) handeln. Bei der Fördereinheit kann es sich beispielsweise um eine Durchlauffördereinrichtung handeln, bei welcher die Spanner während der Bearbeitung mit den Werkstücken in einer Durchlaufrichtung - gegebenenfalls getaktet - durch die Vorrichtung gefördert werden. Alternativ oder zusätzlich kann die Fördereinheit auch dazu dienen, die Bearbeitungseinheit zu bewegen, um eine Bearbeitung an den Werkstücken auszuführen. Dabei sind auch verschiedene Kombinationen dieser Konzepte möglich.The processing unit can be, for example, a cutting processing unit or a unit for coating the workpiece surface (for example with an edge material). The conveying unit can be, for example, a continuous conveying device in which the clamps are conveyed through the device in one pass direction during processing with the workpieces - if necessary clocked. Alternatively or additionally, the conveyor unit can also serve to move the processing unit in order to carry out processing on the workpieces. Various combinations of these concepts are also possible.

Wie in Fig. 1 zu erkennen ist, weist der Werkstückspanner 1 ein erstes, oberes Spannelement 2 und ein zweites, unteres Spannelement 4 auf, die jeweils eine Spannfläche 2' bzw. 4' aufweisen. Die Spannflächen 2', 4' dienen dazu, ein Werkstück W zu spannen. Zu diesem Zweck ist in der vorliegenden Ausführungsform das erste Spannelement 2 zwischen einer Spannposition und einer Öffnungsposition, wie sie in Fig. 1 gezeigt ist, verfahrbar.As in Fig. 1 can be seen, the workpiece clamp 1 has a first, upper clamping element 2 and a second, lower clamping element 4, each of which has a clamping surface 2 'or 4'. The clamping surfaces 2 ', 4' serve to clamp a workpiece W. For this purpose, in the present embodiment, the first clamping element 2 is between a clamping position and an opening position, as shown in FIG Fig. 1 is shown, movable.

Alternativ könnte auch das zweite Spannelement 4 zwischen einer Spannposition und einer Öffnungsposition verfahrbar sein. Gegebenenfalls können auch beide Spannelemente 2, 4 verfahren werden.Alternatively, the second clamping element 4 could also be movable between a clamping position and an opening position. If necessary, both clamping elements 2, 4 can also be moved.

Zu diesem Zweck ist das erste Spannelement 2 über eine Kolbenstange 6 mit einem nicht gezeigten Antrieb verbunden, der beispielsweise ein pneumatischer oder hydraulischer Stellantrieb sein kann. Mittels dieses Stellantriebes ist das erste Spannelement 2 zwischen der in Fig. 1 gezeigten Öffnungsposition und einer Spannposition, in welcher das Werkstück W zwischen den Spannflächen 2', 4' gespannt ist, verfahrbar.For this purpose, the first clamping element 2 is connected via a piston rod 6 to a drive, not shown, which can be, for example, a pneumatic or hydraulic actuator. By means of this actuator, the first clamping element 2 is between the in Fig. 1 shown opening position and a clamping position in which the workpiece W is clamped between the clamping surfaces 2 ', 4', movable.

Im Bereich der Kolbenstange 6 weist der Werkstückspanner 1 eine Verriegelungseinrichtung 10 auf, die einen maximalen Abstand der Spannflächen 2', 4' definiert. Um diesen Abstand bei Bedarf anpassen zu können, ist die Verriegelungseinrichtung 10 entriegelbar. In diesem entriegelten Zustand kann beispielsweise die obere Spannfläche 2 ohne Betätigung des Stellantriebs angehoben oder abgesenkt werden, um den maximalen Abstand der Spannflächen 2', 4' anzupassen. Um die Einstellung des maximalen Abstands der Spannflächen 2', 4' zu erleichtern, ist in der vorliegenden Ausführung an der Kolbenstange 6 eine Skala 6' vorgesehen.In the area of the piston rod 6, the workpiece clamp 1 has a locking device 10 which defines a maximum distance between the clamping surfaces 2 ', 4'. In order to be able to adjust this distance if necessary, the locking device 10 can be unlocked. In this unlocked state, for example, the upper clamping surface 2 can be raised or lowered without actuating the actuator in order to adjust the maximum distance between the clamping surfaces 2 ', 4'. In order to facilitate the adjustment of the maximum distance between the clamping surfaces 2 ', 4', a scale 6 'is provided on the piston rod 6 in the present embodiment.

Obgleich in Fig. 1 nicht gezeigt, kann die Verriegelungseinrichtung 10 verschiedene kraft- und/oder formschlüssige Elemente aufweisen, die im entriegelten Zustand der Verriegelungseinrichtung 10 eine Verstellung des maximalen Abstands der Spannflächen 2', 4' ermöglichen, im verriegelten Zustand jedoch für eine zuverlässige Arretierung des maximalen Abstands sorgen.Although in Fig. 1 Not shown, the locking device 10 can have various non-positive and / or positive elements which, when the locking device 10 is in the unlocked state, allow the maximum distance between the clamping surfaces 2 ', 4' to be adjusted, but in the locked state ensure reliable locking of the maximum distance ,

Um dabei ein unerwünschtes Entriegeln der Verriegelungseinrichtung 10 zu verhindern, weist der Werkstückspanner 1 ferner eine Sicherungseinrichtung 20 auf, die in der vorliegenden Ausführungsform ein stabförmiges Sicherungselement 22 und ein im Wesentlichen scheibenförmiges Betätigungselement 24 aufweist, die durch eine Schraube 26 miteinander verbunden sind. Das Betätigungselement 24 weist an seinem äußeren Umfang (gedachte) Lastangriffspunkte 28 für eine Bedienperson auf. Der sich zu den Lastangriffspunkten 28 hin erstreckende Radius R des Betätigungselements 24 ist in der vorliegenden Ausführungsform zehnmal größer als der Radius r des Sicherungselements 22. Dank dieser Hebelverhältnisse ist das Betätigungselement werkzeuglos bedienbar, d.h. eine Bedienperson kann manuell eine Drehbewegung um die Längsachse des Sicherungselements 22 aufbringen, um auf diese Weise die Sicherungseinrichtung zu betätigen, um letztlich die Verriegelungseinrichtung 10 zu ent- bzw. verriegeln. Dieser Vorgang kann beispielsweise durch bloßes Drehen des Betätigungselements 24 erfolgen. Alternativ ist es ebenso möglich, dass eine zweistufige Betätigung vorgesehen ist, bei welcher durch Drehen des Betätigungselements 24 zunächst das Sicherungselement 22 gelöst wird, um anschließend durch Drücken oder Ziehen (entlang der Längsachse des Sicherungselements 22) die Verriegelungseinrichtung 10 zu entriegeln bzw. zu verriegeln. Durch diese Entriegelung kann wie bereits erwähnt, bei Bedarf der maximale Abstand der Spannflächen 2', 4' angepasst werden.In order to prevent an undesired unlocking of the locking device 10, the workpiece clamp 1 also has a securing device 20, which in the present embodiment has a rod-shaped securing element 22 and an essentially disk-shaped actuating element 24, which are connected to one another by a screw 26. The actuating element 24 has (imaginary) load application points 28 for an operator on its outer circumference. The radius R of the actuating element 24, which extends towards the load application points 28, is ten times larger than the radius r of the securing element 22 in the present embodiment. Thanks to these leverage ratios, the actuating element can be operated without tools, ie an operator can manually rotate the longitudinal axis of the securing element 22 apply in order to actuate the securing device in this way, in order to finally unlock or lock the locking device 10. This process can be carried out, for example, simply by rotating the actuating element 24. Alternatively, it is also possible that a two-stage actuation is provided, in which the securing element 22 is first released by rotating the actuating element 24, in order to then unlock or lock the locking device 10 by pressing or pulling (along the longitudinal axis of the securing element 22) , As already mentioned, this unlocking means that the maximum distance between the clamping surfaces 2 ', 4' can be adjusted if necessary.

Die Bedienung des Werkstückspanners 1 vollzieht sich dann beispielsweise wie folgt. Bei einer Veränderung der zu spannenden Werkstücke ist zunächst die Dicke der zu spannenden Werkstücke zu ermitteln, beispielsweise durch Messen der Werkstückdicke oder durch Ablesen der Werkstückdicke aus einer Tabelle, einer Anzeige der Maschine oder dergleichen. Auf dieser Grundlage wird überprüft, ob der maximale Abstand der Spannflächen 2', 4' die Werkstückdicke zuzüglich eines maximalen Spaltmaßes, das beispielsweise 5 mm betragen kann, überschreitet. Falls dies zutrifft, wird der maximale Abstand der Spannflächen 2', 4' reduziert.The workpiece clamp 1 is then operated, for example, as follows. If the workpieces to be clamped are changed, the thickness of the workpieces to be clamped must first be determined, for example by measuring the workpiece thickness or by reading the workpiece thickness from a table, a display of the machine or the like. On this basis, it is checked whether the maximum distance between the clamping surfaces 2 ', 4' exceeds the workpiece thickness plus a maximum gap dimension, which can be 5 mm, for example. If this is the case, the maximum distance between the clamping surfaces 2 ', 4' is reduced.

Hierzu wird zunächst das Betätigungselement 24 um die Längsachse des Sicherungselements 29 gedreht, um das Sicherungselement 22 freizugeben. Anschließend wird das Betätigungselement 24 entlang der Längsachse des Sicherungselements 22 niedergedrückt, sodass das Sicherungselement 22 eine Hubbewegung ausführt. Durch diese Hubbewegung wird die Verriegelungseinrichtung 10 entriegelt, sodass nunmehr der maximale Abstand der Spannflächen 2', 4' angepasst werden kann. Anschließend wird die Verriegelungseinrichtung 10 wieder verriegelt, beispielsweise durch eine entgegengesetzte Drehbewegung des Betätigungselements 22. Nunmehr kann das gewünschte Werkstück in den Bereich zwischen den Spannflächen 2', 4' eingelegt werden. Anschließend kann das Werkstück W gespannt werden, indem der Stellantrieb das obere Spannelement 2 absenkt und eine Klemmkraft auf das Werkstück W aufbringt.For this purpose, the actuating element 24 is first rotated about the longitudinal axis of the securing element 29 in order to release the securing element 22. The actuating element 24 is then pressed down along the longitudinal axis of the securing element 22, so that the securing element 22 executes a lifting movement. This lifting movement unlocks the locking device 10, so that the maximum distance between the clamping surfaces 2 ', 4' can now be adjusted. The locking device 10 is then locked again, for example by an opposite rotational movement of the actuating element 22. The desired workpiece can now be inserted into the area between the clamping surfaces 2 ', 4'. The workpiece W can then be clamped by the actuator lowering the upper clamping element 2 and applying a clamping force to the workpiece W.

Claims (13)

Werkstückspanner (1) zum Spannen von Werkstücken, die bevorzugt zumindest abschnittsweise aus Holz, Holzwerkstoffen, Kunststoff oder dergleichen bestehen, umfassend: ein erstes Spannelement (2) und ein zweites Spannelement (4), die jeweils eine Spannfläche (2', 4') aufweisen, um ein Werkstück zwischen den Spannflächen zu spannen, wobei das erste und das zweite Spannelement (2', 4') zwischen einer Spannposition und einer Öffnungsposition relativ zueinander verfahrbar sind, und eine Verriegelungseinrichtung (10), die den maximalen Abstand der Spannflächen (2', 4') definiert, wobei die Verriegelungseinrichtung (10) entriegelbar ist, um den maximalen Abstand der Spannflächen (2', 4') einzustellen, dadurch gekennzeichnet, dass der Werkstückspanner eine Sicherungseinrichtung (20) aufweist, die eingerichtet ist, ein unerwünschtes Entriegeln der Verriegelungseinrichtung (10) zu verhindern. Workpiece clamp (1) for clamping workpieces, which preferably consist at least in sections of wood, wooden materials, plastic or the like, comprising: a first clamping element (2) and a second clamping element (4), each having a clamping surface (2 ', 4') in order to clamp a workpiece between the clamping surfaces, wherein the first and the second clamping element (2 ', 4') can be moved relative to one another between a clamping position and an opening position, and a locking device (10) which defines the maximum distance between the clamping surfaces (2 ', 4'), the locking device (10) being unlockable in order to set the maximum distance between the clamping surfaces (2 ', 4'), characterized in that the workpiece clamp has a securing device (20) which is set up to prevent the locking device (10) from being unlocked in an undesired manner. Werkstückspanner nach Anspruch 1, dadurch gekennzeichnet, dass die Sicherungseinrichtung (20) ein Sicherungselement (22) aufweist, das in einer Sicherungsstellung festsetzbar ist, in welcher ein unerwünschtes Entriegeln der Verriegelungseinrichtung (10) verhindert ist.Workpiece clamp according to claim 1, characterized in that the securing device (20) has a securing element (22) which can be fixed in a securing position in which an undesired unlocking of the locking device (10) is prevented. Werkstückspanner nach Anspruch 2, dadurch gekennzeichnet, dass die Sicherungseinrichtung (20) ein Betätigungselement (24) aufweist, das eingerichtet ist, das Sicherungselement (22) in der Sicherungsstellung festzusetzen.Workpiece clamp according to claim 2, characterized in that the securing device (20) has an actuating element (24) which is set up to fix the securing element (22) in the securing position. Werkstückspanner nach Anspruch 3, dadurch gekennzeichnet, dass das Betätigungselement (24) werkzeuglos bedienbar ist.Workpiece clamp according to claim 3, characterized in that the actuating element (24) can be operated without tools. Werkstückspanner nach Anspruch 3 oder 4, dadurch gekennzeichnet, dass das Betätigungselement (24) mindestens einen Lastangriffspunkt (28) für eine Bedienperson aufweist, dessen Hebelarm mindestens 10 mal größer ist als ein Hebelarm, insbesondere Radius, des Sicherungselements (22).Workpiece clamp according to claim 3 or 4, characterized in that the actuating element (24) has at least one load application point (28) for an operator, the lever arm of which is at least 10 times larger than a lever arm, in particular radius, of the securing element (22). Werkstückspanner nach einem der Ansprüche 3 bis 5, dadurch gekennzeichnet, dass das Betätigungselement (24) eine Scheibe und/oder einen Hebel aufweist, um den mindestens einen Lastangriffspunkt (28) bereitzustellen.Workpiece clamp according to one of claims 3 to 5, characterized in that the actuating element (24) has a disc and / or a lever in order to provide the at least one load application point (28). Werkstückspanner nach einem der Ansprüche 2 bis 6, dadurch gekennzeichnet, dass das Sicherungselement (22) eingerichtet ist, die Verriegelungseinrichtung (10) durch eine Hubbewegung zu entriegeln, sobald es durch das Betätigungselement (24) freigegeben ist.Workpiece clamp according to one of claims 2 to 6, characterized in that the securing element (22) is set up to unlock the locking device (10) by a lifting movement as soon as it is released by the actuating element (24). Werkstückspanner nach Anspruch 7, dadurch gekennzeichnet, dass das Betätigungselement (24) derart angeordnet ist, um bei Betätigung durch einen Benutzer eine Hubbewegung des Sicherungselements (22) zu veranlassen.Workpiece clamp according to claim 7, characterized in that the actuating element (24) is arranged in such a way as to cause a lifting movement of the securing element (22) when actuated by a user. Werkstückspanner nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass er eine Skala (6') aufweist, um die Einstellung des maximalen Abstandes der Spannflächen (2', 4') zu erleichtern.Work clamp according to one of the preceding claims, characterized in that it has a scale (6 ') to facilitate the setting of the maximum distance between the clamping surfaces (2', 4 '). Werkstückspanner nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass er einen Stellantrieb aufweist, der eingerichtet ist, mindestens ein Spannelement (2, 4) zwischen der Öffnungsposition und der Spannposition zu verfahren.Workpiece clamp according to one of the preceding claims, characterized in that it has an actuator which is set up to move at least one clamping element (2, 4) between the open position and the clamping position. Vorrichtung zum Bearbeiten von Werkstücken, die bevorzugt zumindest abschnittsweise aus Holz, Holzwerkstoffen, Kunststoff oder dergleichen bestehen, umfassend: mindestens einen Werkstückspanner nach einem der vorhergehenden Ansprüche, eine Bearbeitungseinheit zum Bearbeiten der Werkstücke, und eine Fördereinheit zum Herbeiführen einer Relativbewegung zwischen dem mindestens einen Werkstückspanner und der Bearbeitungseinheit. Device for machining workpieces, which preferably consist at least in sections of wood, wood-based materials, plastic or the like, comprising: at least one workpiece clamp according to one of the preceding claims, a processing unit for processing the workpieces, and a conveyor unit for bringing about a relative movement between the at least one workpiece clamp and the processing unit. Verfahren zum Spannen eines Werkstücks unter Einsatz eines Werkstückspanners nach einem der Ansprüche 1 bis 10, mit den Schritten: Definieren eines zu spannenden Werkstücks und Ermitteln der zu spannenden Werkstückdicke, Überprüfen, ob der maximale Abstand der Spannflächen (2', 4') die Werkstückdicke zuzüglich eines maximalen Spaltmaßes überschreitet, Reduzieren des maximalen Abstands der Spannflächen (2', 4'), falls dieser die Werkstückdicke zuzüglich eines maximalen Spaltmaßes überschreitet. Method for clamping a workpiece using a workpiece clamp according to one of claims 1 to 10, comprising the steps: Define a workpiece to be clamped and determine the workpiece thickness to be clamped, Check whether the maximum distance between the clamping surfaces (2 ', 4') exceeds the workpiece thickness plus a maximum gap dimension, Reduce the maximum distance between the clamping surfaces (2 ', 4') if this exceeds the workpiece thickness plus a maximum gap dimension. Verfahren nach Anspruch 12, dadurch gekennzeichnet, dass zum Reduzieren des maximalen Abstands der Spannflächen (2', 4') folgende Schritte durchgeführt werden: Entriegeln der Verriegelungseinrichtung (10) mittels der Sicherungseinrichtung (20), Reduzieren und Einstellen des maximalen Abstands der Spannflächen (2', 4'), Verriegeln der Verriegelungseinrichtung (10) mittels der Sicherungseinrichtung (20). A method according to claim 12, characterized in that the following steps are carried out to reduce the maximum distance between the clamping surfaces (2 ', 4'): Unlocking the locking device (10) by means of the securing device (20), Reduce and set the maximum distance between the clamping surfaces (2 ', 4'), Locking the locking device (10) by means of the securing device (20).
EP19185985.9A 2018-07-13 2019-07-12 Workpiece tensioner, processing device and clamping method Active EP3593946B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL19185985T PL3593946T3 (en) 2018-07-13 2019-07-12 Workpiece tensioner, processing device and clamping method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102018117011.4A DE102018117011A1 (en) 2018-07-13 2018-07-13 Workpiece clamp, machining device and clamping method

Publications (2)

Publication Number Publication Date
EP3593946A1 true EP3593946A1 (en) 2020-01-15
EP3593946B1 EP3593946B1 (en) 2021-10-06

Family

ID=67262148

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19185985.9A Active EP3593946B1 (en) 2018-07-13 2019-07-12 Workpiece tensioner, processing device and clamping method

Country Status (3)

Country Link
EP (1) EP3593946B1 (en)
DE (1) DE102018117011A1 (en)
PL (1) PL3593946T3 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4008480A1 (en) 2020-12-07 2022-06-08 IMA Schelling Deutschland GmbH Clamping device

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4743003A (en) * 1987-03-09 1988-05-10 Dietlein Robert W Ski vise with rotating jaws
DE19702608A1 (en) * 1997-01-26 1998-07-30 Ulrich Heimann Collet chuck
DE102014216638A1 (en) 2014-08-21 2016-02-25 J. Schmalz Gmbh Clamping device for fixing a workpiece

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1320885B1 (en) * 2000-02-22 2003-12-10 Biesse Spa MACHINE FOR THE PROCESSING OF WOOD PANELS OR SIMILAR
US8381372B1 (en) * 2009-03-26 2013-02-26 Randall E. Arnall Camming clamp for gunwales or pontoon-boat rails
DE102011012739A1 (en) * 2011-02-24 2012-08-30 Michael Weinig Ag Clamping device for workpieces made of wood, plastic and the like
DE102013209111B4 (en) * 2013-05-16 2024-01-11 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Clamping device, in particular for receiving and clamping a component, and clamping system with such a clamping device

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4743003A (en) * 1987-03-09 1988-05-10 Dietlein Robert W Ski vise with rotating jaws
DE19702608A1 (en) * 1997-01-26 1998-07-30 Ulrich Heimann Collet chuck
DE102014216638A1 (en) 2014-08-21 2016-02-25 J. Schmalz Gmbh Clamping device for fixing a workpiece

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4008480A1 (en) 2020-12-07 2022-06-08 IMA Schelling Deutschland GmbH Clamping device
DE102020132390A1 (en) 2020-12-07 2022-06-09 Ima Schelling Deutschland Gmbh clamping device

Also Published As

Publication number Publication date
DE102018117011A1 (en) 2020-01-16
PL3593946T3 (en) 2022-05-16
EP3593946B1 (en) 2021-10-06

Similar Documents

Publication Publication Date Title
DE69507173T2 (en) Device for centering and blocking a workpiece for honing it using an expandable honing tool
DE102009057726A1 (en) radial press
DE29920199U1 (en) Clamping tool
EP1699580B1 (en) Method and device for the production of a hollow cylinder from a blank
DE9312808U1 (en) Measuring device for recording the insertion depth for a pipe connection
EP3593946B1 (en) Workpiece tensioner, processing device and clamping method
EP0546270A1 (en) Method of transforming brittle material
EP3093088B1 (en) Workpiece clamping device including a face driver
EP2548668B1 (en) Method for automatically torsion straightening of longitudinal workpieces
DE2656210A1 (en) DRILL STRING HOLDER IN A ROCK DRILLING MACHINE
DE2749025A1 (en) ADJUSTABLE COLLET
EP1452301B1 (en) Toggle press
DE102010024610A1 (en) Setting tool with a variable setting stroke adjustment
DE102016219265A1 (en) Apparatus and method for machining a workpiece
DE10137887B4 (en) jig
DE3232496C2 (en) Device for the pivotable and lockable mounting of a machine vice on a tool machine table
DE19941424C2 (en) Device for clamping a workpiece
EP3542963A1 (en) Tensioner
EP3172004B1 (en) Gear shaping machine for machining workpieces and gear shaping method for machining workpieces
DE2159744A1 (en) DEVICE FOR CUTTING PIPES
WO2021156053A1 (en) Screw clamp
EP0412434B1 (en) Hydraulically actuated severing device
EP0994759A1 (en) Compass saw device with ejector facility
DE102016200149B4 (en) Device for clamping workpieces
DE4119026A1 (en) Pneumatically actuated cramp for holding glued joints - has movable jaw actuated by air cylinder and mounted on bracket which can be adjusted along bar

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION HAS BEEN PUBLISHED

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

17P Request for examination filed

Effective date: 20200218

RBV Designated contracting states (corrected)

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: GRANT OF PATENT IS INTENDED

INTG Intention to grant announced

Effective date: 20210604

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE PATENT HAS BEEN GRANTED

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

Ref country code: AT

Ref legal event code: REF

Ref document number: 1435809

Country of ref document: AT

Kind code of ref document: T

Effective date: 20211015

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 502019002432

Country of ref document: DE

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: GERMAN

RAP2 Party data changed (patent owner data changed or rights of a patent transferred)

Owner name: J. SCHMALZ GMBH

Owner name: HOMAG GMBH

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG9D

REG Reference to a national code

Ref country code: NL

Ref legal event code: MP

Effective date: 20211006

REG Reference to a national code

Ref country code: DE

Ref legal event code: R081

Ref document number: 502019002432

Country of ref document: DE

Owner name: J. SCHMALZ GMBH, DE

Free format text: FORMER OWNER: HOMAG GMBH, 72296 SCHOPFLOCH, DE

Ref country code: DE

Ref legal event code: R081

Ref document number: 502019002432

Country of ref document: DE

Owner name: HOMAG GMBH, DE

Free format text: FORMER OWNER: HOMAG GMBH, 72296 SCHOPFLOCH, DE

REG Reference to a national code

Ref country code: AT

Ref legal event code: PC

Ref document number: 1435809

Country of ref document: AT

Kind code of ref document: T

Owner name: J. SCHMALZ GMBH, DE

Effective date: 20220223

Ref country code: AT

Ref legal event code: PC

Ref document number: 1435809

Country of ref document: AT

Kind code of ref document: T

Owner name: HOMAG GMBH, DE

Effective date: 20220223

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: RS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20211006

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20211006

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20211006

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220106

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220206

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20211006

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220207

Ref country code: NO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220106

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20211006

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20211006

Ref country code: HR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20211006

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220107

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20211006

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 502019002432

Country of ref document: DE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SM

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20211006

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20211006

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20211006

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20211006

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20211006

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20211006

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20220707

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20211006

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20211006

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MC

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20211006

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

REG Reference to a national code

Ref country code: BE

Ref legal event code: MM

Effective date: 20220731

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20220712

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20220731

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20220731

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20220731

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20220712

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20230712

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: HU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT; INVALID AB INITIO

Effective date: 20190712

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20211006

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20211006

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20230712

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: TR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20211006

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20211006

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20240717

Year of fee payment: 6

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20240717

Year of fee payment: 6

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: AT

Payment date: 20240718

Year of fee payment: 6

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: PL

Payment date: 20240701

Year of fee payment: 6

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20240717

Year of fee payment: 6