EP0247319B1 - Variable clamping device for tools - Google Patents

Variable clamping device for tools Download PDF

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Publication number
EP0247319B1
EP0247319B1 EP87104326A EP87104326A EP0247319B1 EP 0247319 B1 EP0247319 B1 EP 0247319B1 EP 87104326 A EP87104326 A EP 87104326A EP 87104326 A EP87104326 A EP 87104326A EP 0247319 B1 EP0247319 B1 EP 0247319B1
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EP
European Patent Office
Prior art keywords
attachment
tool
clamping
holder
holding 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.)
Expired - Lifetime
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EP87104326A
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German (de)
French (fr)
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EP0247319A1 (en
Inventor
Hans J. Fabritius
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Individual
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Individual
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Publication date
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Priority to AT87104326T priority Critical patent/ATE58081T1/en
Publication of EP0247319A1 publication Critical patent/EP0247319A1/en
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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
    • B25B1/00—Vices
    • B25B1/22—Arrangements for turning or tilting vices
    • 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
    • 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
    • B25B5/006—Supporting devices for 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
    • B25B5/06—Arrangements for positively actuating jaws
    • B25B5/10—Arrangements for positively actuating jaws using screws

Definitions

  • the invention relates to a tensioning device according to the preamble of patent claim 1.
  • a clamping device for tools which consists of a holder to be attached to a work table and a tool holder which can be detachably connected to it.
  • the tool holder has an articulated ball-like attachment for connection to a compatible slotted clamping ring and a conical attachment attachment with its axis perpendicular to the attachment axis for connection to at least one compatible attachment device of the holder.
  • the holder consists of a fixed part to be fixed on the table and a pivotable part which is articulated to the fixed part and can be locked and pivoted, the pivoting part having the fastening device for the tool holder.
  • a disadvantage of this known clamping device is that its individual parts can only be pivoted relative to one another to a limited extent. The application area of the device is thus relatively limited. Due to its structure, the known device is also particularly suitable for holding light workpieces; for heavier or more heavily loaded tools, the clamping device is hardly suitable because of the undesired adjustment that then easily occurs even in the locked state.
  • the device should also enable the immediate clamping of a tool without the tool holder being interposed.
  • This design of the device and its swivel part enables the fastening device for the tool holder to be freely positioned within the limits of the swivel range, so that any number of positions can be set in which the swivel part can be locked in its position.
  • the tool holder is pivotable on the one hand together with the swivel part and on the other hand rotatable about the axis of its attachment.
  • the swivel part can be swiveled from a horizontal basic position in which it rests on the fixed part, for example by 90 ° into a vertical position and by a further 90 ° into a second horizontal position.
  • the swivel part In its basic position, the swivel part is supported on its underside and can therefore also absorb very high loads in the vertical direction. By swiveling through 90 ° from the basic position, a position perpendicular to the basic position is achieved. In addition, the swivel part can be swiveled by a further 90 °. This does indeed result in a direction of the swivel part which corresponds to that of the basic position; but the pivoting part no longer lies on the fixed part, but is pivoted away from it, so that further clamping possibilities open up.
  • the fixed part of the holder is expediently a screw clamp with a table support leg and an approximately perpendicular vertical leg, and the pivot axis preferably runs in the corner region formed by the two legs approximately parallel to the adjacent edge of the table clamped by the screw clamp.
  • the fastening device of the pivoting part of the holder for the tool holder is a clamping ring which corresponds in its inner diameter to the clamping ring of the tool holder, and the fastening attachment of the tool holder is a cylindrical pin which fits the clamping ring of the holder. This ensures that tools that can be inserted into the tool holder can also be clamped directly into the swivel part.
  • the swivel axis also serves to lock the swivel part.
  • the two clamp legs are essentially plate-shaped with a vertical slot H of width H running approximately centrally in the plates over part of the plate length and passing through the corner region, in that the corner region has a recess in its central part, which hinge-like takes up a pierced extension of the pivoting part with little play, and that through the corner region of the legs and the extension a clamping screw forming the pivot axis is guided in a threaded bore in its end region facing away from the screw head.
  • a simple wrench is sufficient to actuate the screw, as is contained in every home improvement or workshop equipment.
  • a preferred embodiment provides that, in addition to locking the swivel part, the clamping ring of the swivel part is also tensioned by means of the tensioning screw.
  • the slot of the clamping ring of the swivel part of the holder runs parallel to the slot in the fixed part of the holder through the shoulder and has a width h that is less than the width H of the slot in the fixed part. It can be locked in one easy movement of the pivoting part and its clamping ring are actuated, so that, in addition to the great variability of the clamping device, it is also easy to manufacture and very easy to use.
  • the embodiment of the clamping device shown in this figure without a tool holder essentially consists of a fixed part 2 and a pivoting part 3 pivotally connected to it.
  • the fixed part 2 has the shape of a screw clamp with a table support leg 21, a vertical leg running at right angles thereto 22, a clamping leg 23, which in turn extends at right angles to this, and a clamping screw 23 'with an actuating handle 23 "which is guided through the latter leg 23.
  • the underside 21 of the table support leg 21 lies on a work table 5 which is formed from a wooden plate 51.
  • the inside of the vertical leg 22 bears against the front edge 52 of the table 5.
  • the clamping screw 23 ' the fixed part 2 is firmly clamped to the table 5 in the manner of a screw clamp, with a very plate-like design of the legs 21 and 22 stable position of the fixed part 2 is ensured.
  • the pivot part 3 which is connected in an articulated manner to the fixed part 2, can be pivoted about a pivot axis 30 relative to the fixed part 2, which runs through the corner region 20 formed by the two legs 21 and 22.
  • the pivot axis 30 consists of a screw 27 which is guided in a bore 26 'and at the same time runs through a pierced extension 33 of the pivot part 3, which results in a stable hinge.
  • the pivot part 3 consists essentially of a clamping ring 31 with a central opening 32 for receiving a suitable attachment of the tool holder.
  • the shape and function of the swivel part 3 and its interaction with the tool holder are explained in more detail with reference to the figures yet to be described.
  • a marking line 36 is attached to the swivel part 3, on which, in cooperation with an invisible degree scale attached in the corner region 20 of the fixed part 2, certain angular positions of the swivel part 3 can be read.
  • the bottom of the swivel part 3 lies flat on the table support leg 21 of the fixed part 2. From there it can be pivoted about the pivot axis 30, the pivot angle being at least 90 ° and preferably even i80 ° .
  • the fixed part 2 can also be fastened to the table 5 by means of screws which can be guided from above through bores 29 through the table support leg 21.
  • FIG. 2 shows the tensioning device from FIG. I in a frontal view, the swivel part 3 being in a vertical position, ie pivoted upward from the basic position by 90 ° .
  • the vertical leg 22 and the clamping screw 23 'with its actuating handle 23 can be seen here from the fixed part 2.
  • the fixed part 2 is in turn clamped to the work table 5 by means of the clamping screw 23', of which the front edge 52 of the wooden plate 51 is visible in this illustration .
  • a slot 24 runs approximately centrally in the vertical leg 22 from the corner region 20 over part of the length of the leg 22. Furthermore, in the corner region 20 there is a recess 25 in the central region thereof, which serves to receive the extension 33 of the pivot part 3.
  • An aligned bore 26, 35, 26 ' runs through the corner region 20 and the shoulder 33, through which the screw 27 is guided. At one end, the screw 27 has a head 27, which is supported by a washer 28, for receiving a wrench. At the end of the screw 27 facing away from the head, the bore 26 'has a suitable mating thread.
  • the pivoting part 3 which - as already mentioned - essentially consists of the clamping ring 31 with its central opening 32, has in its lower part a slot 34 running parallel to the slot 24 through the clamping ring 31 and the extension 33.
  • This slot 34 has a relatively small width h, while the slot 24 in the vertical leg 22 of the fixed part 2 has a larger width H.
  • the pivot part 3 can be pivoted about the pivot axis 30, realized by the screw 27.
  • the diameter of the opening 32 is expanded sufficiently by the slot 34 in order to be able to use the tool holder with a corresponding extension piece.
  • the screw 27 By actuating the screw 27 in the tightening direction, the slot 34 is closed and the slot 24 is narrowed in width until a tool holder inserted into the clamping ring 31 of the swivel part 3 is firmly clamped and until at the same time the swivel part 3 is moved from the outside to the two sides of the Approach 33 acting clamping force is locked in position.
  • the screw 27 thus fulfills three functions at the same time, namely that of the pivot axis 30, the locking device for the pivot part 3 and the clamping screw for the clamping ring 31.
  • FIG. 3 shows a top view of the device I, that the slot 24 extending from the corner region 20 also extends over part of the length of the table support leg 21. Furthermore, the bores 29 for carrying out screws for fastening the fixed part 2 to the wooden plate 51 of the work table 5 can be seen in the table support leg 21.
  • pivot axis 30 or the screw 27 runs parallel to the table edge 52 immediately in front of it, so that depending on the pivoting position of the pivot part 3, this is once above the table 5 and once outside the surface of the work table 5.
  • the clamping ring 31 can be seen from the outside, while the opening 32 now has a horizontal longitudinal axis and is therefore not directly visible.
  • the side 31 'of the swivel part 3 which is at the bottom according to FIG. 1 therefore lies in a vertical plane in FIG. 3 and faces the table support leg 21.
  • the screw head 27 ' is also outside the. Table top 51, so that favorable access to the screw head 27 'and a wide actuation area for a wrench are ensured.
  • FIG. 4 shows an application example of the clamping device I according to the invention together with the tool holder 4 and a tool 6 held by the latter, in the exemplary embodiment a vice.
  • the fixed part 2 of the device is in turn fastened to a work table 5 by means of the table support leg 21 and the clamping screw 23 '.
  • the clamping screw 27 forming the pivot axis 30 can also be seen in this figure.
  • the tool holder 4 is clamped with a cylindrical extension 41 into the swivel part 3 or its opening 31.
  • the tool holder 4 has a holder body 42 and a clamping ring 43 with a clamping screw 44.
  • a graduation scale directly opposite the swivel part 3, by means of which a desired angular position can be set by rotating the tool holder 4 about an axis of rotation 40 which corresponds to the central axis of the extension 41.
  • the vice 6 is clamped into the tool holder 4 or the opening 43 'of its clamping ring 43 with a suitable cylindrical extension 61, which in turn can be rotated about an axis of rotation 60 which corresponds to the longitudinal axis of the extension 61.
  • the Dreh greatest. Pivot axes 30, 40 and 60 in directions perpendicular to each other, so that the tool 6, which can also be a hand drill, for example, can be moved into almost any position and locked there.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Gripping Jigs, Holding Jigs, And Positioning Jigs (AREA)
  • Drilling And Boring (AREA)
  • Clamps And Clips (AREA)
  • Automatic Tool Replacement In Machine Tools (AREA)

Abstract

Variable clamping device for tools, consisting of a holding device to be mounted on a work table and of a tool holder to be detachably connected to the latter and possessing a slotted clamping ring as tool fixture and a fastening attachment extending approximately perpendicularly to the clamping ring axis for connection to at least one compatible fastening device of the holding device, the holding device (2, 3) consisting of a fixing part (2) to be fixed to the table (5) and of a swivelling part (3) connected to the fixing part (2) in articulated manner and capable of lockably swivelling, the swivelling part (3) possessing the fastening device (31, 32) for the tool holder (4). <IMAGE>

Description

Die Erfindung betrifft eine Spannvorrichtung nach dem Oberbegriff des Patentanspruchs 1.The invention relates to a tensioning device according to the preamble of patent claim 1.

Aus der FR-A 2 167 463 ist eine Spannvorrichtung für Werkzeuge bekannt, die aus einer an einem Werktisch anzubringenden Halterung und aus einem mit dieser lösbar zu verbindenden Werkzeughalter besteht. Der Werkzeughalter weist einen gelenkkugelartigen Ansatz zur Verbindung mit einem kompatiblen geschlitzten Klemmring und einen mit seiner Achse zu der Ansatzachse senkrecht verlaufenden konischen Befestigungsansatz zur Verbindung mit wenigstens einer kompatiblen Befestigungseinrichtung der Halterung auf. Die Halterung besteht dabei aus einem an dem Tisch zu fixierenden Fixteil und aus einem mit dem Fixteil gelenkig verbundenen, arretierbar verschwenkbaren Schwenkteil, wobei das Schwenkteil die Befestigungseinrichtung für den Werkzeughalter aufweist.From FR-A 2 167 463 a clamping device for tools is known which consists of a holder to be attached to a work table and a tool holder which can be detachably connected to it. The tool holder has an articulated ball-like attachment for connection to a compatible slotted clamping ring and a conical attachment attachment with its axis perpendicular to the attachment axis for connection to at least one compatible attachment device of the holder. The holder consists of a fixed part to be fixed on the table and a pivotable part which is articulated to the fixed part and can be locked and pivoted, the pivoting part having the fastening device for the tool holder.

Als nachteilig wird bei dieser bekannten Spannvorrichtung angesehen, daß deren einzelne Teile nur in einem begrenzten Maße gegeneinander verschwenkbar sind. Damit ist der Anwendungsbereich der Vorrichtung relativ begrenzt. Aufgrund ihres Aufbaus ist die bekannte Vorrichtung außerdem besonders für die Halterung von leichten Werkstücken geeignet; für schwerere oder stärker belastete Werkzeuge ist die Spannvorrichtung wegen der dann auch im arretierten Zustand leicht auftretenden unerwünschten Verstellung kaum geeignet.A disadvantage of this known clamping device is that its individual parts can only be pivoted relative to one another to a limited extent. The application area of the device is thus relatively limited. Due to its structure, the known device is also particularly suitable for holding light workpieces; for heavier or more heavily loaded tools, the clamping device is hardly suitable because of the undesired adjustment that then easily occurs even in the locked state.

Es stellt sich daher die Aufgabe, eine Spannvorrichtung der eingangs genannten Art zu schaffen, die eine Positionierung des Werkzeughalters in weiteren Stellungen erlaubt, als dies bei der Vorrichtung nach dem Stand der Technik der Fall ist. In weiteren Ausgestaltungen soll die Vorrichtung auch das unmittelbare Einspannen eines Werkzeuges ohne Zwischenschaltung des Werkzeughalters ermöglichen.It is therefore the task of creating a clamping device of the type mentioned at the outset, which allows the tool holder to be positioned in further positions than is the case with the device according to the prior art. In further refinements, the device should also enable the immediate clamping of a tool without the tool holder being interposed.

Die Lösung dieser Aufgabe gelingt erfindungsgemäß durch eine Spannvorrichtung der eingangs genannten Art mit den kennzeichnenden Merkmalen des Patentanspruchs 1.This object is achieved according to the invention by a tensioning device of the type mentioned at the outset with the characterizing features of patent claim 1.

Durch diese Gestaltung der Vorrichtung und ihres Schwenkteils wird eine freie Positionierung der Befestigungseinrichtung für den Werkzeughalter innerhalb der Grenzen des Schwenkbereiches ermöglicht, so daß eine beliebige Zahl von Positionen einstellbar ist, in denen das Schwenkteil jeweils in seiner Lage arretierbar ist. Der Werkzeughalter ist dabei zum einen zusammen mit dem Schwenkteil verschwenkbar und zum anderen um die Achse seines Ansatzes verdrehbar. Bei Montage der Spannvorrichtung an einem horizontalen Werktisch ist das Schwenkteil aus einer horizontalen Grundposition, in der es auf dem Fixteil aufliegt, z.B. um 90° in eine vertikale Lage und um weitere 90° in eine zweite horizontale Lage verschwenkbar. In seiner Grundposition ist das Schwenkteil an seiner Unterseite unterstützt und kann so auch sehr hohe Belastungen in vertikaler Richtung aufnehmen. Durch Verschwenkung um 90° aus der Grundposition heraus wird eine zu der Grundposition rechtwinklige Lage erreicht. Darüber hinaus kann das Schwenkteil noch um weitere 90° verschwenkt werden. Hierdurch ergibt sich zwar eine Richtung des Schwenkteils, die der der Grundposition entspricht; das Schwenkteil liegt aber nicht mehr auf dem Fixteil auf, sondern ist von diesem weggeschwenkt, so daß sich weitere Einspannmöglichkeiten eröffnen.This design of the device and its swivel part enables the fastening device for the tool holder to be freely positioned within the limits of the swivel range, so that any number of positions can be set in which the swivel part can be locked in its position. The tool holder is pivotable on the one hand together with the swivel part and on the other hand rotatable about the axis of its attachment. When mounting the clamping device on a horizontal work table, the swivel part can be swiveled from a horizontal basic position in which it rests on the fixed part, for example by 90 ° into a vertical position and by a further 90 ° into a second horizontal position. In its basic position, the swivel part is supported on its underside and can therefore also absorb very high loads in the vertical direction. By swiveling through 90 ° from the basic position, a position perpendicular to the basic position is achieved. In addition, the swivel part can be swiveled by a further 90 °. This does indeed result in a direction of the swivel part which corresponds to that of the basic position; but the pivoting part no longer lies on the fixed part, but is pivoted away from it, so that further clamping possibilities open up.

Zweckmäßig ist das Fixteil der Halterung eine Schraubzwinge mit einem Tischauflageschenkel und einem etwa rechtwinklig dazu verlaufenden Vertikalschenkel und die Schwenkachse verläuft vorzugsweise in dem von den beiden Schenkeln gebildeten Eckbereich etwa parallel zur anliegenden Kante des von der Schraubzwinge eingespannten Tisches. Hiermit wird zum einen ein leichtes Anbringen und Lösen der Vorrichtung gewährleistet und zum anderen ein Verschwenken des Schwenkteils über die Werkzeugtischkante hinaus ermöglicht, was für manche Arbeiten vorteilhaft ist.The fixed part of the holder is expediently a screw clamp with a table support leg and an approximately perpendicular vertical leg, and the pivot axis preferably runs in the corner region formed by the two legs approximately parallel to the adjacent edge of the table clamped by the screw clamp. This on the one hand ensures easy attachment and detachment of the device and on the other hand enables the pivoting part to be pivoted beyond the edge of the tool table, which is advantageous for some work.

Um die Spannvorrichtung möglichst universell, d.h. mit und ohne Werkzeughalter verwenden zu können, ist die Befestigungseinrichtung des Schwenkteils der Halterung für den Werkzeughalter ein in seinem Innendurchmesser mit dem Klemmring des Werkzeughalters übereinstimmender Klemmring und der Befestigungsansatz des Werkzeughalters ein zum Klemmring der Halterung passender zylindrischer Zapfen. Damit wird sichergestellt, daß Werkzeuge, die in den Werkzeughalter einsetzbar sind, auch unmittelbar in das Schwenkteil einspannbar sind.To make the clamping device as universal as possible, i.e. To be able to use with and without the tool holder, the fastening device of the pivoting part of the holder for the tool holder is a clamping ring which corresponds in its inner diameter to the clamping ring of the tool holder, and the fastening attachment of the tool holder is a cylindrical pin which fits the clamping ring of the holder. This ensures that tools that can be inserted into the tool holder can also be clamped directly into the swivel part.

Der Vorteil der großen Variabilität der erfindungsgemäßen Spannvorrichtung könnte teilweise verloren gehen, wenn für die Herstellung eine Vielzahl von Teilen und für die Einstellung und Betätigung der Vorrichtung ein hoher Werkzeugaufwand erforderlich wären. Um dies auszuschließen, ist vorgesehen, daß die Schwenkachse zugleich zur Arretierung des Schwenkteils dient. Dies wird konkret dadurch erreicht, daß die beiden Schraubzwingenschenkel im wesentlichen plattenförmig mit einem vertikalen, etwa mittig in den Platten über einen Teil der Plattenlänge verlaufenden, den Eckbereich durchlaufenden Schlitz einer Weite H ausgebildet sind, daß der Eckbereich in seinem mittleren Teil eine Aussparung aufweist, die scharnierartig unter geringem Spiel einen durchbohrten Ansatz des Schwenkteils aufnimmt, und daß durch den Eckbereich der Schenkel und den Ansatz eine die Schwenkachse bildende Spannschraube in einer in ihrem dem Schraubenkopf abgewandten Endbereich mit einem Gewinde versehenen Bohrung geführt ist. Zur Betätigung der Schraube genügt ein einfacher Schraubenschlüssel, wie er in jeder Heimwerker-oder Werkstattausstattung enthalten ist.The advantage of the great variability of the tensioning device according to the invention could be partially lost if a large number of parts were required for the manufacture and a high amount of tools was required for the adjustment and operation of the device. To rule this out, it is provided that the swivel axis also serves to lock the swivel part. This is achieved concretely in that the two clamp legs are essentially plate-shaped with a vertical slot H of width H running approximately centrally in the plates over part of the plate length and passing through the corner region, in that the corner region has a recess in its central part, which hinge-like takes up a pierced extension of the pivoting part with little play, and that through the corner region of the legs and the extension a clamping screw forming the pivot axis is guided in a threaded bore in its end region facing away from the screw head. A simple wrench is sufficient to actuate the screw, as is contained in every home improvement or workshop equipment.

Um den Einzelteil- und Betätigungsaufwand für die Vorrichtung weiter zu vermindern, sieht eine bevorzugte Ausführung vor, daß neben dem Arretieren des Schwenkteils auch das Spannen des Klemmringes des Schwenkteils mittels der Spannschraube erfolgt. Hierzu verläuft der Schlitz des Klemmringes des Schwenkteils der Halterung parallel zum Schlitz im Fixteil der Halterung durch den Ansatz hindurch und weist eine Weite h auf, die geringer ist als die Weite H des Schlitzes im Fixteil. Damit können mit einem einzigen Handgriff die Arretierung des Schwenkteils und dessen Klemmring betätigt werden, so daß zu der großen Variabilität der Spannvorrichtung auch noch eine günstige Herstellbarkeit und eine sehr komfortable Bedienbarkeit kommen.In order to further reduce the component and operating effort for the device, a preferred embodiment provides that, in addition to locking the swivel part, the clamping ring of the swivel part is also tensioned by means of the tensioning screw. For this purpose, the slot of the clamping ring of the swivel part of the holder runs parallel to the slot in the fixed part of the holder through the shoulder and has a width h that is less than the width H of the slot in the fixed part. It can be locked in one easy movement of the pivoting part and its clamping ring are actuated, so that, in addition to the great variability of the clamping device, it is also easy to manufacture and very easy to use.

Ein bevorzugtes Ausführungsbeispiel der Erfindung wird im folgenden anhand einer Zeichnung näher erläutert. Die Figuren der Zeichnung zeigen im einzelnen:

  • Figur I eine Spannvorrichtung gemäß Erfindung in Seitenansicht ohne Werkzeughalter,
  • Figur 2 die Spannvorrichtung aus Figur in Frontalansicht,
  • Figur 3 die Spannvorrichtung gemäß den Figuren I und 2 in Aufsicht und
  • Figur 4 die Spannvorrichtung mit Werkzeughalter und einem in den Werkzeughalter eingespannten Werkzeug in Seitenansicht.
A preferred embodiment of the invention is explained in more detail below with reference to a drawing. The figures in the drawing show in detail:
  • FIG. I shows a clamping device according to the invention in a side view without a tool holder,
  • FIG. 2 shows the tensioning device from FIG. In frontal view,
  • Figure 3 shows the tensioning device according to Figures I and 2 in supervision and
  • Figure 4 shows the clamping device with tool holder and a tool clamped in the tool holder in side view.

Wie Figur I zeigt, besteht das in dieser Figur noch ohne Werkzeughalter dargestellte Ausführungsbeispiel der Spannvorrichtung im wesentlichen aus einem Fixteil 2 und einem mit diesem verschwenkbar verbundenen Schwenkteil 3. Das Fixteil 2 hat die Form einer Schraubzwinge mit einem Tischauflageschenkel 21, einem dazu rechtwinklig verlaufenden Vertikalschenkel 22, einem zu diesem wiederum rechtwinklig verlaufenden Spannschenkel 23 und einer durch den letztgenannten Schenkel 23 geführten Spannschraube 23' mit einem Betätigungsgriff 23". Der Tischauflageschenkel 21 liegt mit seiner Unterseite 21' auf einem Werktisch 5 auf, der aus einer Holzplatte 51 gebildet ist. Der Vertikalschenkel 22 liegt mit seiner Innenseite 22' an der Vorderkante 52 des Tisches 5 an. Mittels der Spannschraube 23' ist das Fixteil 2 nach Art einer Schraubzwinge fest an dem Tisch 5 verspannt, wobei durch eine plattenartige Ausbildung der Schenkel 21 und 22 eine sehr stabile Lage des Fixteils 2 sichergestellt wird.As FIG. I shows, the embodiment of the clamping device shown in this figure without a tool holder essentially consists of a fixed part 2 and a pivoting part 3 pivotally connected to it. The fixed part 2 has the shape of a screw clamp with a table support leg 21, a vertical leg running at right angles thereto 22, a clamping leg 23, which in turn extends at right angles to this, and a clamping screw 23 'with an actuating handle 23 "which is guided through the latter leg 23. The underside 21 of the table support leg 21 lies on a work table 5 which is formed from a wooden plate 51. The inside of the vertical leg 22 bears against the front edge 52 of the table 5. By means of the clamping screw 23 ', the fixed part 2 is firmly clamped to the table 5 in the manner of a screw clamp, with a very plate-like design of the legs 21 and 22 stable position of the fixed part 2 is ensured.

Das gelenkig mit dem Fixteil 2 verbundene Schwenkteil 3 ist um eine Schwenkachse 30 gegenüber dem Fixteil 2 verschwenkbar, die durch den von den beiden Schenkeln 21 und 22 gebildeten Eckbereich 20 verläuft. Im dargestellten Ausführungsbeispiel besteht die Schwenkachse 30 aus einer Schraube 27, die in einer Bohrung 26' geführt ist und zugleich durch einen durchbohrten Ansatz 33 des Schwenkteils 3 verläuft, wodurch sich ein stabiles Scharnier ergibt.The pivot part 3, which is connected in an articulated manner to the fixed part 2, can be pivoted about a pivot axis 30 relative to the fixed part 2, which runs through the corner region 20 formed by the two legs 21 and 22. In the illustrated embodiment, the pivot axis 30 consists of a screw 27 which is guided in a bore 26 'and at the same time runs through a pierced extension 33 of the pivot part 3, which results in a stable hinge.

Das Schwenkteil 3 besteht im wesentlichen aus einem Klemmring 31 mit einer zentralen Öffnung 32 zur Aufnahme eines passenden Ansatzes des Werkzeughalters. Form und Funktion des Schwenkteils 3 sowie dessen Zusammenwirken mit dem Werkzeughalter werden anhand der noch zu beschreibenden Figuren genauer erläutert.The pivot part 3 consists essentially of a clamping ring 31 with a central opening 32 for receiving a suitable attachment of the tool holder. The shape and function of the swivel part 3 and its interaction with the tool holder are explained in more detail with reference to the figures yet to be described.

In der Nähe der Schwenkachse 30 ist an dem Schwenkteil 3 ein Markierungsstrich 36 angebracht, an welchem im Zusammenwirken mit einer nicht sichtbaren, im Eckbereich 20 des Fixteils 2 angebrachten Gradskala bestimmte Winkelstellungen des Schwenkteils 3 ablesbar sind.In the vicinity of the swivel axis 30, a marking line 36 is attached to the swivel part 3, on which, in cooperation with an invisible degree scale attached in the corner region 20 of the fixed part 2, certain angular positions of the swivel part 3 can be read.

In seiner Grundposition, wie sie in gestrichelter Darstellung angedeutet ist, liegt das Schwenkteil 3 mit seiner Unterseite 31' flach auf dem Tischauflageschenkel 21 des Fixteils 2 auf. Von dort aus ist es um die Schwenkachse 30 verschwenkbar, wobei der Schwenkwinkel zumindest 90° und vorzugsweise sogar i80° beträgt.In its basic position, as indicated in dashed lines, the bottom of the swivel part 3 lies flat on the table support leg 21 of the fixed part 2. From there it can be pivoted about the pivot axis 30, the pivot angle being at least 90 ° and preferably even i80 ° .

Außer durch die Spannschraube 23' kann das Fixteil 2 auch mittels Schrauben an dem Tisch 5 befestigt werden, die von oben her durch Bohrungen 29 durch den Tischauflageschenkel 21 führbar sind.In addition to the clamping screw 23 ', the fixed part 2 can also be fastened to the table 5 by means of screws which can be guided from above through bores 29 through the table support leg 21.

Figur 2 zeigt die Spannvorrichtung aus Figur I in einer Frontalansicht, wobei das Schwenkteil 3 sich in einer vertikalen, d. h. um 90° aus der Grundstellung nach oben verschwenkter Position befindet.FIG. 2 shows the tensioning device from FIG. I in a frontal view, the swivel part 3 being in a vertical position, ie pivoted upward from the basic position by 90 ° .

Von dem Fixteil 2 ist hier der Vertikalschenkel 22 sowie die Spannschraube 23' mit ihrem Betätigungsgriff 23" erkennbar. Mittels der Spannschraube 23' ist das Fixteil 2 wiederum mit dem Werktisch 5 verspannt, von dem in dieser Darstellung die Stirnkante 52 der Holzplatte 51 sichtbar ist.The vertical leg 22 and the clamping screw 23 'with its actuating handle 23 "can be seen here from the fixed part 2. The fixed part 2 is in turn clamped to the work table 5 by means of the clamping screw 23', of which the front edge 52 of the wooden plate 51 is visible in this illustration .

In vertikaler Richtung verläuft etwa mittig im Vertikalschenkel 22 ein Schlitz 24 vom Eckbereich 20 über einen Teil der Länge des Schenkels 22. Weiterhin findet sich im Eckbereich 20 in dessen mittlerem Bereich eine Aussparung 25, die zur Aufnahme des Ansatzes 33 des Schwenkteils 3 dient. Durch den Eckbereich 20 und den Ansatz 33 verläuft eine fluchtende Bohrung 26, 35, 26', durch welche die Schraube 27 geführt ist. An ihrem einen Ende weist die Schraube 27 einen von einer Unterlegscheibe 28 unterlegten Kopf 27 zur Aufnahme eines Schraubenschlüssels auf. Am kopfabgewandten Ende der Schraube 27 weist die Bohrung 26' ein passendes Gegengewinde auf.In the vertical direction, a slot 24 runs approximately centrally in the vertical leg 22 from the corner region 20 over part of the length of the leg 22. Furthermore, in the corner region 20 there is a recess 25 in the central region thereof, which serves to receive the extension 33 of the pivot part 3. An aligned bore 26, 35, 26 'runs through the corner region 20 and the shoulder 33, through which the screw 27 is guided. At one end, the screw 27 has a head 27, which is supported by a washer 28, for receiving a wrench. At the end of the screw 27 facing away from the head, the bore 26 'has a suitable mating thread.

Das Schwenkteil 3, das - wie bereits erwähnt - im wesentlichen aus dem Spannring 31 mit seiner zentralen Öffnung 32 besteht, weist in seinem unteren Teil einen parallel zum Schlitz 24 durch den Klemmring 31 und den Ansatz 33 verlaufenden Schlitz 34 auf. Dieser Schlitz 34 weist eine relativ geringe Weite h auf, während der Schlitz 24 im Vertikalschenkel 22 des Fixteils 2 eine größere Weite H aufweist.The pivoting part 3, which - as already mentioned - essentially consists of the clamping ring 31 with its central opening 32, has in its lower part a slot 34 running parallel to the slot 24 through the clamping ring 31 and the extension 33. This slot 34 has a relatively small width h, while the slot 24 in the vertical leg 22 of the fixed part 2 has a larger width H.

Wie aus der Figur sowie der zugehörigen Beschreibung zu entnehmen ist, kann bei gelöster Schraube 27, wie in der Figur 2 dargestellt, das Schwenkteil 3 um die Schwenkachse 30, realisiert durch die Schraube 27, verschwenkt werden. Außerdem ist durch den Schlitz 34 der Durchmesser der Öffnung 32 ausreichend erweitert, um den Werkzeughalter mit einem entsprechenden Ansatzstück einsetzen zu können. Durch Betätigung der Schraube 27 in Anzugsrichtung wird der Schlitz 34 geschlossen und der Schlitz 24 in seiner Weite verkleinert, bis ein in den Klemmring 31 des Schwenkteils 3 eingesetzter Werkzeughalter fest eingespannt ist und bis zugleich das Schwenkteil 3 durch die von außen auf die beiden Seiten des Ansatzes 33 wirkende Klemmkraft in seiner Position arretiert ist. Die Schraube 27 erfüllt damit gleichzeitig drei Funktionen, nämlich die der Schwenkachse 30, der Arretierung für das Schwenkteil 3 und der Spannschraube für den Klemmring 31.As can be seen from the figure and the associated description, when the screw 27 is loosened, as shown in FIG. 2, the pivot part 3 can be pivoted about the pivot axis 30, realized by the screw 27. In addition, the diameter of the opening 32 is expanded sufficiently by the slot 34 in order to be able to use the tool holder with a corresponding extension piece. By actuating the screw 27 in the tightening direction, the slot 34 is closed and the slot 24 is narrowed in width until a tool holder inserted into the clamping ring 31 of the swivel part 3 is firmly clamped and until at the same time the swivel part 3 is moved from the outside to the two sides of the Approach 33 acting clamping force is locked in position. The screw 27 thus fulfills three functions at the same time, namely that of the pivot axis 30, the locking device for the pivot part 3 and the clamping screw for the clamping ring 31.

Aus der Figur 3, die eine Aufsicht auf die Vorrichtung I zeigt, ist erkennbar, daß der Schlitz 24 sich vom Eckbereich 20 ausgehend auch über einen Teil der Länge des Tischauflageschenkels 21 erstreckt. Weiterhin sind in dem Tischauflageschenkel 21 die Bohrungen 29 zur Durchführung von Schrauben zur Befestigung des Fixteils 2 an der Holzplatte 51 des Werktisches 5 erkennbar.It can be seen from FIG. 3, which shows a top view of the device I, that the slot 24 extending from the corner region 20 also extends over part of the length of the table support leg 21. Furthermore, the bores 29 for carrying out screws for fastening the fixed part 2 to the wooden plate 51 of the work table 5 can be seen in the table support leg 21.

Weiterhin ist aus dieser Figur ersichtlich, daß die Schwenkachse 30 bzw. die Schraube 27 parallel zur Tischkante 52 unmittelbar vor dieser verläuft, so daß je nach Verschwenkungsposition des Schwenkteils 3 dieses einmal oberhalb des Tisches 5 und einmal außerhalb der Fläche des Werktisches 5 liegt.Furthermore, it can be seen from this figure that the pivot axis 30 or the screw 27 runs parallel to the table edge 52 immediately in front of it, so that depending on the pivoting position of the pivot part 3, this is once above the table 5 and once outside the surface of the work table 5.

Bei der in der Figur 3 dargestellten Vertikalstellung des Schwenkteils 3, wie sie auch in Figur 2 dargestellt war, ist der Klemmring 31 von seiner Außenseite her erkennbar, während die Öffnung 32 nun eine horizontale Längsachse aufweist und so nicht unmittelbar sichtbar ist. Die gemäß Figur I untenliegende Seite 31' des Schwenkteils 3 liegt demzufolge in der Figur 3 in einer vertikalen Ebene und ist dem Tischauflageschenkel 21 zugewandt.3, as was also shown in FIG. 2, the clamping ring 31 can be seen from the outside, while the opening 32 now has a horizontal longitudinal axis and is therefore not directly visible. The side 31 'of the swivel part 3 which is at the bottom according to FIG. 1 therefore lies in a vertical plane in FIG. 3 and faces the table support leg 21.

Wie ebenfalls aus dieser Figur zu entnehmen ist, liegt auch der Schraubenkopf 27' außerhalb der . Tischplatte 51, so daß ein günstiger Zugang zum Schraubenkopf 27' sowie ein weiter Betätigungsbereich für einen Schraubenschlüssel gewährleistet sind.As can also be seen from this figure, the screw head 27 'is also outside the. Table top 51, so that favorable access to the screw head 27 'and a wide actuation area for a wrench are ensured.

Die Figur 4 schließlich zeigt ein Anwendungsbeispiel der erfindungsgemäßen Spannvorrichtung I zusammen mit dem Werkzeughalter 4 und einem von diesem gehaltenen Werkzeug 6, im Ausführungsbeispiel ein Schraubstock. Das Fixteil 2 der Vorrichtung ist wiederum mittels des Tischauflageschenkels 21 und der Klemmschraube 23' an einem Werktisch 5 befestigt. Im Eckbereich 20 des Fixteils 2 ist auch in dieser Figur die die Schwenkachse 30 bildende Spannschraube 27 erkennbar. In das Schwenkteil 3 bzw. seine Öffnung 31 ist der Werkzeughalter 4 mit einem zylindrischen Ansatz 41 eingespannt. Neben dem Ansatz 41 weist der Werkzeughalter 4 einen Halterkörper 42 sowie einen Klemmring 43 mit einer Spannschraube 44 auf. Auf dem Halterkörper 42 ist unmittelbar gegenüber dem Schwenkteil 3 eine Gradeinteilungsskala angebracht, mittels welcher durch Drehung des Werkzeughalters 4 um eine Drehachse 40, die der Mittelachse des Ansatzes 41 entspricht, eine gewünschte Winkellage eingestellt werden kann.Finally, FIG. 4 shows an application example of the clamping device I according to the invention together with the tool holder 4 and a tool 6 held by the latter, in the exemplary embodiment a vice. The fixed part 2 of the device is in turn fastened to a work table 5 by means of the table support leg 21 and the clamping screw 23 '. In the corner region 20 of the fixed part 2, the clamping screw 27 forming the pivot axis 30 can also be seen in this figure. The tool holder 4 is clamped with a cylindrical extension 41 into the swivel part 3 or its opening 31. In addition to the shoulder 41, the tool holder 4 has a holder body 42 and a clamping ring 43 with a clamping screw 44. On the holder body 42 there is a graduation scale directly opposite the swivel part 3, by means of which a desired angular position can be set by rotating the tool holder 4 about an axis of rotation 40 which corresponds to the central axis of the extension 41.

In den Werkzeughalter 4 bzw. die Öffnung 43' seines Klemmringes 43 ist mit einem passenden zylindrischen Ansatz 61 der Schraubstock 6 eingespannt, der seinerseits um eine Drehachse 60, die der Längsachse des Ansatzes 61 entspricht, verdrehbar ist.The vice 6 is clamped into the tool holder 4 or the opening 43 'of its clamping ring 43 with a suitable cylindrical extension 61, which in turn can be rotated about an axis of rotation 60 which corresponds to the longitudinal axis of the extension 61.

Wie aus dieser Figur 4 ersichtlich ist, liegen die Drehbzw. Schwenkachsen 30, 40 und 60 in jeweils senkrecht zueinander verlaufenden Richtungen, so daß das Werkzeug 6, das beispielsweise auch eine Handbohrmaschine sein kann, in annähernd jede beliebige Position bewegbar und dort arretierbar ist.As can be seen from this Figure 4, the Drehbzw. Pivot axes 30, 40 and 60 in directions perpendicular to each other, so that the tool 6, which can also be a hand drill, for example, can be moved into almost any position and locked there.

Claims (5)

1. Variable clamping device for tools (6), consisting of a holding device (2, 3) to be attached to a work table (3) and a tool-holder (4) to be connected to said holding device in detachable design, whereby the holding device (2, 3) consists of a fixed part (2) to be secured to the table as well as of a lockable, hinged swivel component (3) connected to the fixed part via an articulated joint, whereby the swivel component (3) possesses an attachment device (30, 31) for the tool-holder (4), whereby the tool-holder (4) possesses an attachment (41) compatible to the attachment device (30, 31) and whereby the junction of the tool-holder (4) and the tool (6) is effected with a slotted clamping ring (43) and a compatible attachment (61),
characterized in that the tool-holder (4) possesses a slotted clamping ring (43) for the attachment of tools, whereby the axis (60) is vertical to the axis (40) of the attachment (41) of the tool-holder (4), and
the swivel component (3) can be swivelled from a horizontal basic position where it lies on a table support leg (21) designed as a plate of the fixed part (2) around a horizontal swivelling axis (30) of 180° into a second horizontal position.
2. Clamping device in accordance with Claim 1, characterized in that the fixed part (2) of the holding device (2, 3) is a screw clamping with a table support leg (21) and a vertical leg running parallel to this (22), and that the swivelling axis (30) runs approximately parallel to the adjacent edge (52) of the table (5) clamped by means of the screw clamp in the corner area (20) formed by the two legs (21, 22).
3. Clamping device in accordance with Claims 1 and 2, characterized in that the attachment device (31, 32) of the swivel component (3) of the holding device (2, 3) for the tool-holder (4) is a clamping ring (31) with an internal diameter equal to that of the clamping ring (43) of the tool-holder (4) and that the fixing attachment of the tool-holder (4) is a cylindrical pin (41) which fits the clamping ring (31) of the holding device (2, 3).
4. Clamping device in accordance with Claims 1 to 3, characterized in that the two legs (21, 22) of the screw clamp are designed essentially as plates, with a slot (24) of width H running along part of the length of the plates, approximately in the middle of the plates, and passing through the corner area (20), that a recess (25) is located in the middle part of the corner area (20), into which recess a bored- through attachment (33) of the swivel component (3) is inserted with a minimum amount of play, in the manner of a hinge, and that a clamping bolt (27) which forms the swivelling axis (30) passes through the corner area (33) of the legs (21, 22) and through the attachment (33) in a threaded bore-hole (26) which is located in an end area (26') of the clamping bolt which faces away from the screw-head (27').
5. Clamping device in accordance with claims 1 to 4, characterized in that the slot (34) of the clamping ring (31) of the swivel component (3) of the holding device (2, 3) passes through the attachment (33) parallel to the slot (24) in the fixed part (2) of the holding device (2, 3) and possesses a width, H, which is less than the width, H, of the slot (24) in the fixed part (2).
EP87104326A 1986-05-09 1987-03-24 Variable clamping device for tools Expired - Lifetime EP0247319B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT87104326T ATE58081T1 (en) 1986-05-09 1987-03-24 VARIABLE CLAMPING DEVICE FOR TOOLS.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19863615581 DE3615581A1 (en) 1986-05-09 1986-05-09 VARIABLE CLAMPING DEVICE FOR TOOLS
DE3615581 1986-05-09

Publications (2)

Publication Number Publication Date
EP0247319A1 EP0247319A1 (en) 1987-12-02
EP0247319B1 true EP0247319B1 (en) 1990-11-07

Family

ID=6300418

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87104326A Expired - Lifetime EP0247319B1 (en) 1986-05-09 1987-03-24 Variable clamping device for tools

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EP (1) EP0247319B1 (en)
AT (1) ATE58081T1 (en)
DE (2) DE3615581A1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5150887A (en) * 1991-02-15 1992-09-29 James B. Anderson Ski holding device
EP0487225A1 (en) * 1990-11-20 1992-05-27 Richard K. Weissenborn Ski holding device
DE4326596C2 (en) 1993-08-07 1997-07-17 Sel Alcatel Ag Protective circuit arrangement for electronic subscriber circuits
FR2749206B1 (en) * 1996-06-03 1998-07-10 Mecanique Energetique FIXED POSITION DEVICE FOR ADJUSTABLE SUPPORT OF WEIGHING EQUIPMENT
DE10048885C2 (en) * 2000-09-29 2002-07-18 Bernold Menke Method and device for connecting components for steel construction
CN103612221A (en) * 2013-10-25 2014-03-05 苏州恩意精密机械有限公司 Clamp lower bottom plate quick fixing device of vehicle lamp air tightness detector

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR940832A (en) * 1945-12-12 1948-12-24 advanced parallel jaw vice
US2564566A (en) * 1948-06-01 1951-08-14 Robert J Duffy Angularly adjustable vise
CH287954A (en) * 1948-11-24 1952-12-31 Gelpke Roland Connector.
US2635495A (en) * 1952-03-28 1953-04-21 Thompson Herbert Leon Fly-tying vise
CH451849A (en) * 1966-02-01 1968-05-15 F Pellaton David Mounting device
FR2080214A5 (en) * 1970-02-27 1971-11-12 Ardennes Champagne
FR2120329A5 (en) * 1970-12-30 1972-08-18 Honeywell Bull
FR2167463A5 (en) * 1972-01-14 1973-08-24 Riou Yves Workpiece holder - esp for welding or brazing
US4134577A (en) * 1977-09-09 1979-01-16 Alexander Price Fly-tying vise
EP0099704A3 (en) * 1982-07-16 1986-01-02 John Richard Coxon Device for clamping workpieces

Also Published As

Publication number Publication date
ATE58081T1 (en) 1990-11-15
DE3615581A1 (en) 1987-11-12
EP0247319A1 (en) 1987-12-02
DE3615581C2 (en) 1988-04-21
DE3766004D1 (en) 1990-12-13

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