EP0293755B1 - Dispositif de serrage - Google Patents

Dispositif de serrage Download PDF

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Publication number
EP0293755B1
EP0293755B1 EP88108386A EP88108386A EP0293755B1 EP 0293755 B1 EP0293755 B1 EP 0293755B1 EP 88108386 A EP88108386 A EP 88108386A EP 88108386 A EP88108386 A EP 88108386A EP 0293755 B1 EP0293755 B1 EP 0293755B1
Authority
EP
European Patent Office
Prior art keywords
clamping
holder
clamping jaw
jaw
clamping 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
Application number
EP88108386A
Other languages
German (de)
English (en)
Other versions
EP0293755A2 (fr
EP0293755A3 (en
Inventor
Reinhard Hafeneger
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.)
DESTACO Europe GmbH
Original Assignee
DE STA CO Metallerzeugnisse 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 DE STA CO Metallerzeugnisse GmbH filed Critical DE STA CO Metallerzeugnisse GmbH
Priority to AT88108386T priority Critical patent/ATE63250T1/de
Publication of EP0293755A2 publication Critical patent/EP0293755A2/fr
Publication of EP0293755A3 publication Critical patent/EP0293755A3/de
Application granted granted Critical
Publication of EP0293755B1 publication Critical patent/EP0293755B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • B25B5/00—Clamps
    • B25B5/16—Details, e.g. jaws, jaw attachments
    • B25B5/163—Jaws or jaw attachments
    • 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

Definitions

  • the invention relates to a clamping device for clamping in particular sheet metal according to the preamble of the main claim.
  • clamping devices of this type which are also referred to as clamping grippers, are generally known and are in use (see, for example, DE-A-23 15 945).
  • a further relevant prior art is represented by the following documents: DD-A-239 562, In addition to that according to US-A-3 861 254, such clamping devices are used in particular to remove metal sheets or other parts in presses, shaping or stamping systems, but sufficient tightly tensioned to bring in and out or to promote from station to station.
  • several clamping devices are appropriately spaced on a reciprocating conveyor frame, with the aid of which the sheets, gripped by the clamping devices, are stored from station to station.
  • the detection of the sheets takes place between the two jaws, of which the movable and adjustable by actuating element is usually equipped with fixing tips, while the other is fixed in a suitable manner by means of holding parts for the actuating element on a support of the conveyor frame belonging to the processing station.
  • the actuating elements used for such clamping devices are generally actuating cylinders, the piston rods of which are coupled at the free end in a suitable manner to the movable clamping jaw.
  • the piston rod end has to perform a curve movement in such devices, it is also already known to pivotally mount the actuating element on the holder in order to be able to follow such a curve movement.
  • the invention is therefore based on the object of improving a clamping device of the type mentioned in such a way that, while maintaining a compact design and stability, the entire device is fixed to its carrier as usual, but can be brought to different inclination positions as required, with the proviso that, despite the inclination of the second jaw, the first jaw, which can be pivoted by the actuating element, should be able to assume its parallel position to the second jaw in the clamping position.
  • the actuatable jaw and the angle-adjustable second jaw for the workpiece are arranged on a common axis, which must be present anyway for the movable jaw.
  • the angle-adjustable clamping jaw is provided in the region of its rear side flanks with two articulated brackets which are articulated on the axis, and corresponding articulated brackets are arranged on the holder for the actuating element.
  • the link plates are advantageously provided on their mutually opposing flank surfaces in a known manner with latching elements, which are equipped, for example in the sense of spur toothing, with suitable profiling, so that these teeth latch against each other when tightening and a rigid connection between them the second jaw set with the desired inclination and the holder.
  • spur toothing is not very strongly profiled, it may be sufficient for the release and tightening of the latching to loosen or clamp the axis designed as a clamping bolt and to slightly bend the respective tabs of the holder against each other and against the latching of the clamping jaw to be determined to brace.
  • the clamping device can advantageously be designed such that in at least one of the hinge tabs of the holder an axially adjustable with respect to the axis, but fixed against rotation, with Locking elements provided clamping jaw locking ring is arranged, which will be explained in more detail.
  • This design results in sufficient play for the clamping jaw locking ring after the axis has been released, which of course must be arranged in a rotationally fixed manner in the holder with the possibility of axial displacement.
  • a pin lockable hole lock could optionally also be provided.
  • the device can also be designed in such a way that the angularly adjustable second jaw, supported on its own axis or on a common axis by means of the other jaw, is articulated to an actuator arranged on the holder.
  • the embodiment with the aforementioned latching elements is preferred, since it is easier to manufacture.
  • the adjustability provided in the device according to the invention of the actuating lever normally fixedly connected to the movable jaw at a certain angle has the advantage, of course, since this adjustability can take place independently of the setting of the second jaw that the opening width of the movable jaw is variable.
  • the clamping device consists of clamping jaws 2, 3 which can be moved relative to one another in the closed and open positions on a holder 1 formed by two jaws, of which the actuatable first jaw 2 with an actuator 4 of the actuating element 1 ' is coupled, which consists of an actuating cylinder in the illustrated embodiment.
  • the second, clamping jaw 3 is arranged on the holder 1 at an adjustable angle and, as can be seen from FIG. 3, is designed to be fixable in different positions.
  • the actuatable and the angle-adjustable jaw 2, 3 are mounted on a common axis 5 of the holder 1, wherein of course the actuatable jaw 2 is rotatably seated on this axis 5, which is provided on at least one side with at least one clamping nut 5 '.
  • the angle-adjustable second jaw 3 is provided in the region of its rear side flanks 6 with two articulated brackets 7 mounted on the axis 5 and on the holder 1 for the actuating element 1 'corresponding articulated brackets 8 are arranged, or these brackets 8 are from the corresponding ends of the holder 1st formed, at the other end, as can also be seen from FIGS.
  • the actuating element 1 ' is arranged pivotably at 1 ⁇ . This pivotability is necessary in view of the fact that the coupling point 12 between the end of the actuator 4 (piston rod) and the actuating lever 13 of the actuatable jaw 2 about the axis 5 describes an arc.
  • FIG. 3 illustrates, wherein the holder 1 maintains its fixed position on the carrier 16.
  • the locking elements 10 on the hinge plates 7 and 8 can be designed in the sense of FIGS. 4, 5, which are shown there greatly enlarged. If the depth of the profiling of the latching elements 10 can be disengaged and thus adjusted only with considerable axial play after the axis 5 has been released, the clamping jaw can be designed, for example, in the sense of FIG.
  • the adjusting lever 13 of the pivotable clamping jaw 2 can advantageously be adjusted with respect to this and can be fixed to it with corresponding latching elements 10 '. If, for example, in FIG. 1, the second clamping jaw 3 is pivoted downward by 90 ° in the counterclockwise direction and is fixed, the opening angle indicated by the arrow for the pivotable clamping jaw 2 is maintained in that the clamping jaw 2 is released from its locking to the adjusting lever 13 loosens and also pivoted downwards by 90 ° and fixed again to the extension 13, which, however, maintains the position shown.
  • the adjustability of the adjustable second jaw 3 is effected in a different way.
  • this exemplary embodiment also makes it clear that the tabs 7 of the jaw 3 do not necessarily have to be mounted on the same axis 5 as the jaw 2, but can be mounted on a single axis 5 'or axle bolt of the holder 1, as shown is.
  • the setting is effected with an actuator 14, for example in the form of a small threaded spindle, which is coupled, for example, with a spherical head configuration at one end to an extension 3 'of the second clamping jaw 3.
  • the actuator 14 engages in a rotatable threaded receptacle, so that the jaw 3 can be adjusted at an angle to the holder 1 when the spindle is actuated.
  • Elements for fixing the spindle in the desired position are not shown, apart from the fact that the thread to be provided can expediently be equipped with a self-locking pitch.
  • the holders 1 are provided with two through bores 15 each.
  • the carrier 16 consists, as can be seen better from FIG. 1A, of a stable angle piece, which is welded, for example, to the end of a sufficiently stable support arm 17, which in turn is then suitably attached to the frame or housing of a processing station with its other end (not shown) is fastened.

Claims (6)

1. Dispositif de serrage, notamment pour bloquer des tôles, constitué de deux mâchoires de serrage (2, 3) disposées pour se déplacer l'une par rapport à l'autre en position de fermeture et en position d'ouverture sur un support (1) prévu pour un élément de manoeuvre (1′), la première (2) de ces mâchoires de serrage, munie d'un levier de commande (13) étant accouplée avec un organe de manoeuvre (4) de l'élément de manoeuvre (1′) monté pour pivoter sur le support (1),
caractérisé en ce que la seconde mâchoire de serrage (3) est montée sur le support (1) avec possibilité de réglage angulaire indépendamment de la première mâchoire de serrage (2) en pouvant être fixée dans des positions différentes, et en ce que la première mâchoire de serrage (2), commandée est disposée sur le levier de commande (13) également avec possibilité de réglage angulaire en pouvant être fixée dans des positions différentes.
2. Dispositif de serrage selon la revendication 1, caractérisé en ce que la première mâchoire de serrage (2), commandée, et la seconde mâchoire de serrage (3) a angle réglable sont disposées sur un axe commun (5) du support (1).
3. Dispositif de serrage selon la revendication 1, caractérisé en ce que la seconde mâchoire de serrage (3) a angle réglable est munie dans la zone de ses flancs arrière (6), de deux oreilles d'articulation (7) articulées sur l'axe (5), des oreilles d'articulation correspondantes (8), montées sur l'axe (5), étant disposées sur le support (1).
4. Dispositif de serrage selon la revendication 3, caractérisé en ce que les oreilles d'articulation (7, 8) sont munies d'éléments d'enclenchement (10) sur leurs faces latérales (9) appliquées l'une sur l'autre.
5. Dispositif de serrage selon la revendication 3 ou 4, caractérisé en ce qu'une bague de blocage (11) des mâchoires de serrage réglable en direction axiale par rapport à l'axe (5), mais fixée contre la rotation et munie d'éléments d'enclenchement (10), est disposée dans au moins l'une (8) des oreilles d'articulation du support (1).
6. Dispositif de serrage selon la revendication 1, caractérisé en ce que la seconde mâchoire de serrage (3) à angle réglable est montée sur un axe distinct (5˝) ou sur un axe commun (5) avec la première mâchoire de serrage (2) et est liée à articulation à un organe de commande (14) disposé sur le support (1).
EP88108386A 1987-05-30 1988-05-26 Dispositif de serrage Expired - Lifetime EP0293755B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88108386T ATE63250T1 (de) 1987-05-30 1988-05-26 Klemmvorrichtung.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE8707773U 1987-05-30
DE8707773U DE8707773U1 (fr) 1987-05-30 1987-05-30

Publications (3)

Publication Number Publication Date
EP0293755A2 EP0293755A2 (fr) 1988-12-07
EP0293755A3 EP0293755A3 (en) 1989-03-22
EP0293755B1 true EP0293755B1 (fr) 1991-05-08

Family

ID=6808687

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88108386A Expired - Lifetime EP0293755B1 (fr) 1987-05-30 1988-05-26 Dispositif de serrage

Country Status (4)

Country Link
EP (1) EP0293755B1 (fr)
AT (1) ATE63250T1 (fr)
DE (2) DE8707773U1 (fr)
ES (1) ES2022529B3 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5171001A (en) * 1987-05-27 1992-12-15 Btm Corporation Sealed power clamp
DE4236670A1 (de) * 1992-10-30 1994-05-05 Sta Co Mettallerzeugnisse Gmbh Klemmspannvorrichtung

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3147004A (en) * 1959-02-02 1964-09-01 Leland F Blatt Work securing clamp
US3545050A (en) * 1969-01-30 1970-12-08 I S I Mfg Inc Power clamp with pull-back action
DD96915A1 (fr) * 1972-04-12 1973-04-12
DE2222686B2 (de) * 1972-05-09 1980-06-12 Tuenkers Maschinenbau Gmbh, 4030 Ratingen Druckmittelbetatigte Kniehebelspannvorrichtung, insbesondere für Karosserieteile
US3861254A (en) * 1974-03-04 1975-01-21 Judelshon Industries Self-loading roll slitter
DE7806055U1 (de) * 1978-03-01 1978-06-15 De-Sta-Co Metallerzeugnisse Gmbh, 6000 Frankfurt Kniehebelgelenkspanner
US4405120A (en) * 1981-06-05 1983-09-20 O.K. Machine And Tool Corporation Printed circuit board holder
DE3513906A1 (de) * 1985-04-17 1986-10-30 Carlheinz 8484 Grafenwöhr Geuss Spannvorrichtung
DD239562A1 (de) * 1985-07-25 1986-10-01 Komb Veb Elektro Apparate Werk Hebelspannvorrichtung zum einseitigen spannen von flaechigen werkstuecken
DE3705269A1 (de) * 1986-02-20 1987-08-27 Carver & Co Eng Verstellbare klemmeinrichtung und deren zubehoerteile

Also Published As

Publication number Publication date
ATE63250T1 (de) 1991-05-15
DE8707773U1 (fr) 1988-10-06
EP0293755A2 (fr) 1988-12-07
EP0293755A3 (en) 1989-03-22
DE3862683D1 (de) 1991-06-13
ES2022529B3 (es) 1991-12-01

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