EP2803446B1 - Dispositif de serrage - Google Patents

Dispositif de serrage Download PDF

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Publication number
EP2803446B1
EP2803446B1 EP14165541.5A EP14165541A EP2803446B1 EP 2803446 B1 EP2803446 B1 EP 2803446B1 EP 14165541 A EP14165541 A EP 14165541A EP 2803446 B1 EP2803446 B1 EP 2803446B1
Authority
EP
European Patent Office
Prior art keywords
clamping
gripping
clamping device
base body
adjustable
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP14165541.5A
Other languages
German (de)
English (en)
Other versions
EP2803446A1 (fr
Inventor
Marcel Schlüssel
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.)
Gressel AG
Original Assignee
Gressel AG
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 Gressel AG filed Critical Gressel AG
Publication of EP2803446A1 publication Critical patent/EP2803446A1/fr
Application granted granted Critical
Publication of EP2803446B1 publication Critical patent/EP2803446B1/fr
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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
    • B25B1/24—Details, e.g. jaws of special shape, slideways
    • B25B1/2405—Construction of the jaws
    • B25B1/2478—Construction of the jaws with more than one pair of 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
    • B25B1/00—Vices
    • B25B1/06—Arrangements for positively actuating jaws
    • B25B1/10—Arrangements for positively actuating jaws using screws
    • B25B1/12—Arrangements for positively actuating jaws using screws with provision for disengagement
    • 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
    • B25B1/24—Details, e.g. jaws of special shape, slideways
    • B25B1/2489—Slideways

Definitions

  • the invention relates to a clamping device for clamping at least one workpiece according to the preamble of claim 1.
  • Such a clamping device is from the EP 1 043 124 A1 known. This has a arranged on a support fixed jaw and arranged on the support adjustable jaw with a form-fitting aufspann- on the support and anchored support block and an adjustable relative to the support block Nachspannbacke on.
  • the support block of the adjustable clamping jaw is guided displaceably via a guide wedge within a T-slot guide of the carrier and can be fixed by a clamping device.
  • the clamping device consists of a rotatably mounted in the guide wedge eccentric shaft and a displaceable by rotation of the shaft clamping device, which contains on shoulders of the T-slot guide strips.
  • One from the WO 2007/031296 A1 known clamping device includes a plurality of arranged on a rail-shaped body clamping jaws containing a fixable by means of a clamping device on the base body and a base part adjustable relative to the clamping part.
  • the clamping device for fixing the base part on the base body consists in this known multiple tensioner of two displaceable transversely to the adjustment jaws having on its outer side a plurality of thread-like longitudinal grooves for positive engagement in corresponding longitudinal grooves on the inside of two mutually parallel side cheeks of the body.
  • the production of the longitudinal grooves on the base body and the corresponding longitudinal grooves on the two jaws is relatively complex.
  • such a clamp connection is also sensitive to contamination and must therefore be separately protected or kept carefully clean.
  • the object of the invention is to provide a clamping device of the type mentioned, which can be easily manufactured and is insensitive to contamination.
  • clamping device for releasably fixing a base part of the clamping jaw on the base designed clamping device aligned in the direction of the longitudinal axis of the base body clamping pins which are adjustable transversely to the longitudinal axis of the body to engage under the inner sides of two side cheeks of the body in the direction of its longitudinal axis extending clamping lugs ,
  • clamping pins which are adjustable transversely to the longitudinal axis of the body to engage under the inner sides of two side cheeks of the body in the direction of its longitudinal axis extending clamping lugs
  • the locking of the jaws is done by the expandable clamping pins, which are first pressed to clamp outward and then pull the base of the jaw against the body.
  • the moving apart and together of the clamping pins for clamping and releasing the clamping device is effected by a relative to the base part by at least one clamping screw adjustable clamping piece.
  • the clamping piece is wedge-shaped and has on its longitudinal sides two opposite oblique side surfaces with a recess for abutment of the clamping pins.
  • the jaws can be easily removed from this at any point of the Grundgropers and offset. By lying in the middle clamping device of the jaws also different jaws can be used on identical bodies.
  • the clamping jaws are extremely compact and the clamping device exerts no disturbing influence on the outer contour of the clamping jaws, so that as many workpieces can be stretched and there is optimal access to the workpieces for their processing.
  • the clamping jaws are easy to operate and can be operated with a single key for moving and clamping.
  • the clamping lugs on the underside have a rounded clamping surface for abutment of the clamping pin.
  • the rounding of the clamping surface is preferably matched to the contour of the clamping pins. This achieves a good clamping effect.
  • a toothing for engagement in a corresponding toothing on the base body is provided on the base part.
  • a toothing for engagement in a corresponding toothing on the base body is provided on the base part.
  • the at least one clamping screw may e.g. pass through the base part and engage in a threaded bore of the clamping piece.
  • the adjustment of the clamping part of the clamping jaw can be done by at least one clamping screw, which also engages in a threaded bore in the clamping piece.
  • the clamping screw can also be used to tighten the clamping piece and to increase the clamping force.
  • the at least one clamping screw and the at least one clamping screw are preferably arranged such that they run obliquely and parallel to each other through the base body.
  • the side surfaces of the clamping piece can be designed with different inclinations and / or radii.
  • the clamping pins can be guided in a guide member against each other slidably pressed by springs against the clamping piece. Instead of or additional, the clamping pins can also be guided by guide pins.
  • the adjustable clamping part of the clamping jaw is slidably guided via an oblique guide pin within an oblique bore of the base part and supported by rear inclined surfaces on front inclined surfaces of an upper portion of the base part.
  • the clamping device can be designed as a single clamping device with a fixed jaw and a single adjustable clamping jaw or as a multiple vice with multiple on a base body in series juxtaposed adjustable clamping jaws.
  • the in FIG. 1 in a perspective clamping device includes a rail-shaped base body 1, for example, clamped on a machine table of a machine tool or attached to a tenter with several distributed over the circumference multiple tensioners.
  • the main body 1 has a U-shaped cross section with two side cheeks 2 and 3 spaced apart from one another.
  • the main body 1 may be made in one piece, but may for example consist of a base plate and two side walls 2 and 3 bolted. At the top of the two side walls 2 and 3 of the base body 1 is a in the FIGS. 4 and 6 recognizable toothing 4 provided.
  • the clamping device is designed as a multiple clamp and on the base body 1, a jaw 5 and a plurality of adjustable clamping jaws 6 are mounted.
  • the arranged in series adjustable clamping jaws 6 have a base body 1 fixable base part 7 and a contrast adjustable clamping part 8.
  • FIG. 2 shows the base part 7 of the clamping jaw 6 shown there in an exploded view at an upper portion 9 a fixed clamping surface 10 and the adjustable clamping part 8 has an opposite the fixed clamping surface 10 adjustable clamping surface 11.
  • the base part 7 also includes on its underside a toothing 12 for engagement with the toothing 4 at the top of the rail-shaped main body 1.
  • the adjustable clamping part 8 with the adjustable clamping surface 11 is over an obliquely to the clamping surface 11 extending guide pin 13 slidably guided within an oblique bore 14 of the base member 7 and supported by rear inclined surfaces 15 at front inclined surfaces 16 at the upper portion 9 of the base part 7.
  • a clamping screw 18 which engages in a threaded bore 19 in a wedge-shaped clamping piece 20 of a locking device 21.
  • two further threaded holes 22 are provided for engagement of two arranged in oblique holes 23 in the base part 7 clamping screws 24.
  • locking device 21 includes in addition to the wedge-shaped clamping piece 20 two extending in the direction of the longitudinal axis of the base body 1 clamping pins 25 which are guided by a guide member 26 against each other slidably and biased by two springs 27 inwardly.
  • the wedge-shaped in cross-section clamping piece 20 has a downward increasing width and has on its longitudinal sides two opposite inclined side surfaces 28 with an inwardly bent upper recess 29 for abutment of the clamping pins 25.
  • each have an annular groove 30 is provided.
  • the two eyelet-shaped ends 31 of e.g. from a wire meandering curved springs 27 a.
  • the clamping pins 25 are also guided in guide slots 32 of the plate-shaped guide member 26 transversely to the longitudinal axis of the base body 1 slidably.
  • guide pins 36 for guiding the clamping pins 25 are arranged.
  • the side cheeks 3 and 4 on their inner sides in each case an inwardly projecting and extending in the longitudinal direction of the base body 1 Clamping 33 with a rounded lower clamping surface 34 at the step-shaped transition.
  • a receiving channel 35 is formed with a step-like narrowing to the top cross section.
  • the rounding of the lower clamping surface 34 is adapted to the contour of the cylindrical clamping pins 25.
  • the clamping piece 20 with the two recesses 29 is designed such that the largest width of the clamping piece 20 and the distance between the arranged in the recesses 29 clamping pins 25 is slightly less than the width of the opening 35 between two inwardly projecting lugs 33 of the two side walls. 2 and 3, so that the clamping jaw 6 can be easily removed in the release position upwards from the base body 1 or inserted into this.
  • the clamping piece 10 By tightening the clamping screws 24, the clamping piece 10 can be pulled against the base part 7, wherein the two clamping pins 25 are pushed out of the recesses 29 and pressed by the inclined side surfaces 28 to the outside. The clamping pins 25 then engage under the clamping lugs 33 on the base body 1 and get into the in the FIGS. 5 and 6
  • the base member 7 is then drawn with its lower teeth 12 in the upper toothing 4 of the rail-shaped main body 1, resulting in a positive and non-positive connection between the base part 7 and the basic body 1 results.
  • FIG. 1 It can be seen that the fixed clamping surfaces 10 on the base part 7 and the adjustable clamping surfaces 11 on the clamping part 8 of two juxtaposed clamping jaws 6 opposite each other, so that workpieces between the fixed clamping surfaces 10 and the adjustable clamping jaws 11 of two successive jaws 6 can be stretched.
  • the clamping screws 24 can be released, whereby the clamping piece 10 is lowered relative to the base part 7 and the two clamping pins 25 are pulled by the springs 27 back into the recesses 29. Thereby, the jaw 6 can be removed from the receiving channel 35 upwards and easily offset.

Landscapes

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

Claims (12)

  1. Dispositif de mise sous tension servant à mettre sous tension au moins une pièce, avec un corps de base (1) et au moins une mâchoire de mise sous tension (6) disposée au niveau du corps de base (1), qui contient une partie de base (7) pouvant être bloquée au niveau du corps de base (1) au moyen d'un système de serrage (21) et une partie de mise sous tension (8) pouvant être ajustée par rapport à la partie de base (7), dans lequel le système de serrage (21) contient des broches de serrage (25) orientées en direction de l'axe longitudinal du corps de base (1), qui peuvent être ajustées de manière transversale par rapport à l'axe longitudinal du corps de base (1) pour venir en prise par en dessous, au niveau des côtés intérieurs de deux joues latérales (3, 4) du corps de base (1), avec des épaulements de serrage (33) s'étendant en direction de son axe longitudinal, caractérisé en ce que les broches de serrage (25) peuvent être ajustées par l'intermédiaire d'une pièce de serrage (20) pouvant être ajustée par rapport à la partie de base (7) par au moins une vis de serrage (24), dans lequel la pièce de serrage (20) est réalisée de manière à présenter une forme de coin et contient, au niveau de ses côtés longitudinaux, deux surfaces latérales (28) obliques se faisant face avec un renfoncement (29) servant à l'appui des broches de serrage (25).
  2. Dispositif de mise sous tension selon la revendication 1, caractérisé en ce que les épaulements de serrage (33) présentent, au niveau du côté inférieur, une surface de serrage arrondie (34) servant à l'appui d'une broche de serrage (25).
  3. Dispositif de serrage selon la revendication 1 ou 2, caractérisé en ce qu'est prévue, au niveau de la partie de base (8), une denture (12) destinée à venir en prise avec une denture (4) correspondante au niveau du corps de base (1).
  4. Dispositif de serrage selon la revendication 3, caractérisé en ce que l'au moins une vis de serrage (24) s'étend à travers la partie de base (8) et vient en prise avec un alésage fileté (22) de la pièce de serrage (20).
  5. Dispositif de mise sous tension selon l'une quelconque des revendications 1 à 4, caractérisé en ce que la partie de mise sous tension (8) pouvant être ajustée de la mâchoire de mise sous tension (6) peut être ajustée par au moins une vis de mise sous tension (18), qui vient en prise avec un alésage fileté (19) dans la pièce de serrage (20).
  6. Dispositif de serrage selon la revendication 5, caractérisé en ce que l'au moins une vis de serrage (24) et l'au moins une vis de mise sous tension (18) s'étendent de manière oblique et de manière parallèle l'une par rapport à l'autre à travers le corps de base (7) .
  7. Dispositif de mise sous tension selon l'une quelconque des revendications 1 à 6, caractérisé en ce que les surfaces latérales (28) obliques sont réalisées avec des inclinaisons et/ou des rayons différents.
  8. Dispositif de mise sous tension selon l'une quelconque des revendications 1 à 7, caractérisé en ce que les broches de serrage (25) sont poussées par des ressorts (27) contre la pièce de serrage (20).
  9. Dispositif de mise sous tension selon l'une quelconque des revendications 1 à 8, caractérisé en ce que les broches de serrage (25) sont guidées de manière à pouvoir être coulissées les unes contre les autres dans une partie de guidage (26).
  10. Dispositif de serrage selon l'une quelconque des revendications 1 à 9, caractérisé en ce que les broches de serrage (25) sont guidées par des broches de guidage (36).
  11. Dispositif de mise sous tension selon l'une quelconque des revendications 1 à 10, caractérisé en ce que la partie de serrage (8) pouvant être ajustée est guidée de manière à pouvoir être coulissée par l'intermédiaire d'un tenon de guidage (13) oblique à l'intérieur d'un alésage (14) oblique de la partie de base (7) et prend appui par l'intermédiaire de surfaces obliques arrière (15) au niveau de surfaces obliques avant (16) d'une zone supérieure (9) de la partie de base (7).
  12. Dispositif de mise sous tension selon l'une quelconque des revendications 1 à 11, caractérisé en ce que plusieurs mâchoires de mise sous tension (6) se suivant les unes les autres de manière alignée sont disposées au niveau du corps de base (1).
EP14165541.5A 2013-05-15 2014-04-23 Dispositif de serrage Active EP2803446B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE201310104975 DE102013104975B4 (de) 2013-05-15 2013-05-15 Spannvorrichtung

Publications (2)

Publication Number Publication Date
EP2803446A1 EP2803446A1 (fr) 2014-11-19
EP2803446B1 true EP2803446B1 (fr) 2019-06-12

Family

ID=50513131

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14165541.5A Active EP2803446B1 (fr) 2013-05-15 2014-04-23 Dispositif de serrage

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EP (1) EP2803446B1 (fr)
DE (1) DE102013104975B4 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102017001782B3 (de) * 2017-02-24 2018-04-12 Ludwig Ehrhardt Gmbh Modulplatte, Bearbeitungszentrum und Verfahren zum Festspannen von Bauteilen

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1043124B1 (fr) * 1999-04-09 2005-12-21 Guido Hofer Machinentechnik Dispositif pour serrer des pièces à travailler
DE20204682U1 (de) * 2002-03-23 2002-05-29 Philipp Müller & Co. Präzisionswerk - Maschinenbau, 61118 Bad Vilbel Werkstückvorrichtung für Werkzeugmaschinen
DE10302255A1 (de) * 2003-01-22 2004-08-05 Gressel Ag Mehrfachspanner
CH697684B1 (de) * 2005-09-13 2009-01-15 Triag Mehrfachspannvorrichtung für eine spanabhebende Bearbeitungsmaschine.
DE102007027808B3 (de) * 2007-06-13 2008-08-14 Gressel Ag Spannvorrichtung
DE102008060126B4 (de) * 2008-12-03 2012-02-09 Zeroclamp Gmbh Spannsystem

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
EP2803446A1 (fr) 2014-11-19
DE102013104975B4 (de) 2015-02-26
DE102013104975A1 (de) 2014-12-04

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