[go: up one dir, main page]

EP0954464A1 - Dispositif de fixation a commande par fluide sous pression - Google Patents

Dispositif de fixation a commande par fluide sous pression

Info

Publication number
EP0954464A1
EP0954464A1 EP98949855A EP98949855A EP0954464A1 EP 0954464 A1 EP0954464 A1 EP 0954464A1 EP 98949855 A EP98949855 A EP 98949855A EP 98949855 A EP98949855 A EP 98949855A EP 0954464 A1 EP0954464 A1 EP 0954464A1
Authority
EP
European Patent Office
Prior art keywords
pressure
sleeve
pressure medium
clamping device
operated clamping
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.)
Withdrawn
Application number
EP98949855A
Other languages
German (de)
English (en)
Inventor
Rudi Leutert
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.)
Prospective Concepts AG
Original Assignee
Prospective Concepts 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 Prospective Concepts AG filed Critical Prospective Concepts AG
Publication of EP0954464A1 publication Critical patent/EP0954464A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61B—RAILWAY SYSTEMS; EQUIPMENT THEREFOR NOT OTHERWISE PROVIDED FOR
    • B61B12/00—Component parts, details or accessories not provided for in groups B61B7/00 - B61B11/00
    • B61B12/12—Cable grippers; Haulage clips
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q7/00—Arrangements for handling work specially combined with or arranged in, or specially adapted for use in connection with, machine tools, e.g. for conveying, loading, positioning, discharging, sorting
    • B23Q7/04—Arrangements for handling work specially combined with or arranged in, or specially adapted for use in connection with, machine tools, e.g. for conveying, loading, positioning, discharging, sorting by means of grippers
    • B23Q7/041—Arrangements for handling work specially combined with or arranged in, or specially adapted for use in connection with, machine tools, e.g. for conveying, loading, positioning, discharging, sorting by means of grippers step by step
    • B23Q7/042—Arrangements for handling work specially combined with or arranged in, or specially adapted for use in connection with, machine tools, e.g. for conveying, loading, positioning, discharging, sorting by means of grippers step by step for the axial transport of long workpieces

Definitions

  • the present invention relates to a device for clamping elongated bodies with uniform transverse dimensions, such as rods, pipes, ropes and the like, by means of liquid or gas pressure.
  • Clamping devices for workpieces for the feed or in general for the transport of workpieces, tools, machine parts, operated with compressed gas - that is pneumatically - or with hydraulic fluid - that is, hydraulically - combined by pressure medium are known and widely used.
  • the conversion of pressure into clamping force mostly takes place via pressure cylinders and lever mechanisms.
  • the pieces to be clamped have at least two parallel surfaces and / or have no particularly sensitive surfaces, such known devices are suitable. Problems arise, however, when pieces with a round or rounded or odd-numbered polygonal cross section are to be clamped.
  • the problem is particularly exacerbated by pieces to be clamped with a sensitive surface or by the fact that such pieces consist of sensitive materials such as glass or plastic, which can be impaired or damaged by metallic clamping devices.
  • the object which is to be achieved by the present invention is to provide a clamping device for elongated pieces of uniform cross-section to be actuated by pressure medium, by means of which large clamping forces acting on the entire surface are possible without impairing the surfaces of the pieces.
  • FIG. 1 shows a first embodiment in longitudinal section
  • 2 shows a cross section through the embodiment of FIG. 1
  • FIG. 4 shows a variant of the embodiment of FIG. 3,
  • Fig. 8 shows a variant of the shape of a sleeve.
  • Fig. 1 shows a first embodiment as a basic embodiment of the inventive concept in longitudinal section, Fig. 2 in section AA.
  • a cylindrical sleeve 1 is closed at the two end faces by a cap 2, each having a central hole 3 for receiving, for example, a round rod, generally a body 4 to be clamped.
  • Hoses 5 made of an elastomer, which are connected to one another at the ends and thus form a toroidal element, which is henceforth called pressure body 6.
  • a valve 7 is attached to the outer tube 5 of the pressure body 6, via which the interior of the pressure body 6 can be filled with a pressure medium and pressurized. So that the inner tube 5 is pressed against the body 4 and clamps it by means of frictional force.
  • the total frictional force acting on the body 4 is
  • a rope can of course also be clamped without changing the device; also bars with polygonal cross sections.
  • other caps 2 and, if necessary, correspondingly shaped hoses 5 must be used, which is possible without departing from the central idea of the invention.
  • this can - and the end connections of the tubes 5 - be designed so that the pressure body 6, when depressurized, essentially rests on the sleeve 1.
  • 3 is the representation of a second exemplary embodiment. Instead of a pressure body 6, two essentially the same are used here, which are connected in series in the axial direction.
  • the device can be designed in such a way that the intended static friction force is already applied by only one pressure body, that is to say the second is only provided for redundancy.
  • the pressure medium supply to the pressure body 6 is then designed independently.
  • the function of the clamping device according to FIG. 3 is guaranteed if a pressure element 6 fails.
  • a partition 8 is provided between the two pressure elements 6, which is attached to the sleeve 1 and has a hole 3 analogous to that of the caps 2, as shown in FIG. 4 in the detail.
  • a large number of pressure bodies 6 are connected in series.
  • everyone has its own connection 9 for the pressure medium supply. Not shown is the supply and management of the connections 9, but each of which has its own check valve, not shown. Multiple redundancy can thus be achieved.
  • 3 or 4 about the partition 8 also applies to a large number of pressure elements 6.
  • FIG. 6 shows the cross section of a third exemplary embodiment.
  • Two pressure elements 10 are provided here, each extending over the entire length of the sleeve 1, but each occupying only half the space of the sleeve volume.
  • Each pressure body has its own connection 9, the connections 9 being connected in parallel in the pressure medium management and thus having the same pressure.
  • the sleeve 1 is here divided into two half-shells 11, which are connected, for example, by a hinge 12 and, opposite this, are connected by a schematically illustrated locking device 13.
  • the half-shells 11 are connected by two locking devices 13, as a result of which the half-shells can be completely separated from one another.
  • With the hinge 12, the clamping device - when unlocked - can only be opened.
  • the caps 2, not shown in the cross section of FIG. 6, are also divided and the half caps thus created are each connected to a half shell 11.
  • FIG. 7 shows an extension of the solution according to FIG. 6 to a multiplicity of pressure elements 10, each in turn provided with a connection 9.
  • the management of the pressure medium is provided in such a way that for redundancy in the event of a failure
  • Pressure body 10 of the opposite is also depressurized to keep the clamped body 4 centrally. It is of course according to the invention to combine the embodiment according to FIG. 7 with that according to FIG. 5. As a result, the only pressure body 6 in FIG.
  • FIG. 1 is replaced by a double, axial and azimuthal, diversity of pressure bodies 10 with corresponding redundancy or operational reliability.
  • the calculation of the static friction applied to FIG. 1 also remains valid for the other embodiments. If the clamping device - for example according to FIG. 6 - is used to clamp a cable car cabin to a cable, the static friction force thus achieved will easily reach the required size. This is shown using an example.
  • the adhesive force can be influenced directly via the value f H ; with microporous plastics, f H values> 1 are easily possible.
  • the use of such a clamping device as a cable clamp for a suspended cable car is therefore also in accordance with the invention.
  • FIG. 8 shows a sleeve 1 modified with respect to the described exemplary embodiments.
  • the caps 2 are formally integrated into the sleeve 1, so that the sleeve is tapered towards both ends, down to approximately the diameter of the holes 3.
  • the exemplary embodiment has, for example, two pressure bodies 10 extending over the length of the sleeve, each of which have their own connection 9.
  • the sleeve 1 is here, for example, in two half-shells 11 divided along the plane perpendicular to the plane of the drawing.
  • the connections 9 each lie in a plane parallel to the mentioned one.
  • the clamping device according to FIG. 8 is used to clamp a cable car cabin to a cable (body 4), the shape of the sleeve 1, which is tapered on both sides, enables cable pulleys to be passed over. Cable car details are omitted in FIG. 8, however, as is an illustration of the locking device for the reasons set out above.

Landscapes

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

Abstract

Dispositif de fixation pour pièces de forme générale allongée (4), présentant un manchon tubulaire (1) muni à chacune de ses extrémités, d'une coiffe (2) percée d'un trou cylindrique (3) destiné à recevoir la pièce (4). Le manchon (1) entoure un corps de maintien de pression (6), allongé et de forme torique, rempli d'un milieu de pression liquide ou gazeux pouvant être sollicité à la pression. Le corps de maintien de pression (6) comprend, par exemple, deux tuyaux souples concentriques (5) dont les extrémités sont reliées entre elles, et est connecté, par une soupape (7), au système central de commande du fluide sous pression. Lorsqu'une pression s'exerce sur le corps de maintien de pression (6), ses parois sont pressées, aussi bien vers l'extérieur, à l'encontre du manchon (1), que vers l'intérieur, à l'encontre de la pièce de forme allongée (4). La force de serrage agit ainsi uniformément sur toute la surface de la pièce (4) se trouvant à l'intérieur du manchon (1).
EP98949855A 1997-11-21 1998-11-02 Dispositif de fixation a commande par fluide sous pression Withdrawn EP0954464A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CH270497 1997-11-21
CH270497 1997-11-21
PCT/CH1998/000464 WO1999026830A1 (fr) 1997-11-21 1998-11-02 Dispositif de fixation a commande par fluide sous pression

Publications (1)

Publication Number Publication Date
EP0954464A1 true EP0954464A1 (fr) 1999-11-10

Family

ID=4239726

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98949855A Withdrawn EP0954464A1 (fr) 1997-11-21 1998-11-02 Dispositif de fixation a commande par fluide sous pression

Country Status (4)

Country Link
EP (1) EP0954464A1 (fr)
JP (1) JP2001508708A (fr)
CA (1) CA2278607A1 (fr)
WO (1) WO1999026830A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20050075488A (ko) * 2004-01-15 2005-07-21 유티스타콤코리아 유한회사 Ｉｐ 패킷 데이터의 전송이 가능한 ｈａｎｓ-5 스위치라우터
DE102009039688B4 (de) * 2009-09-02 2015-05-13 Airbus Defence and Space GmbH Pneumatische Befestigung für Baukomponenten
CN112658708A (zh) * 2020-11-20 2021-04-16 惠阳航空螺旋桨有限责任公司 一种轴套类零件外圆夹紧定位夹具

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2004824A (en) * 1977-09-06 1979-04-11 Coal Industry Patents Ltd Trolley with endless cable haulage
DE3546521A1 (de) * 1985-09-25 1987-08-06 Bbc Brown Boveri & Cie Vorrichtung zum linearantrieb fuer stabfoermige koerper
JPH07164206A (ja) * 1993-12-16 1995-06-27 Citizen Watch Co Ltd 自動旋盤の棒状被加工物振れ止め支持装置

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9926830A1 *

Also Published As

Publication number Publication date
JP2001508708A (ja) 2001-07-03
CA2278607A1 (fr) 1999-06-03
WO1999026830A1 (fr) 1999-06-03

Similar Documents

Publication Publication Date Title
DE69810362T2 (de) Dichtverbindung zwischen Fluidbohrungen
DE8808519U1 (de) Hydraulischer Stahlgrubenstempel
EP2147191A2 (fr) Vérin hydraulique présentant des tubes extérieurs et intérieurs à parois minces
DE69818390T2 (de) Mechanismus zur Befestigung von Druckmittel führenden Elementen an einem Rahmenelement
DE102007032207A1 (de) Sicherheitseinrichtung für Druckmedien einschließende Behälter
DE3508986A1 (de) Druckbegrenzungsventil
DE8524633U1 (de) Luftfeder mit pneumatischen Anschluß
EP0553309B1 (fr) Tube de forage
EP3011220B1 (fr) Système et procédé pour avancer un ensemble de tuyau
DE4230628C1 (fr)
EP0954464A1 (fr) Dispositif de fixation a commande par fluide sous pression
DE3336778A1 (de) Greifvorrichtung
EP1523392B1 (fr) Dispositif de serrage pour outils
AT355536B (de) Hydraulischer grubenstempel
DE2650371B2 (de) Kupplungsmuffe aus Kunststoff für eine zugfeste Rohrverbindung
DE2529138A1 (de) Flansch-platten-anordnung, sowie verfahren zu deren herstellung
DE202007012419U1 (de) Verbindungsanordnung, insbesondere für hydraulische Schläuche
EP0133241B1 (fr) Entraînement à piston coulissant
EP1590514B1 (fr) Element de fermeture pour tubes polygonaux a air comprime sur un metier a filer
DE102019134325B4 (de) Vorrichtung zur Kanalrohrinspektion und/oder -sanierung mit einem Faltenbalg
DE2650392C3 (de) KabelverschluOhülse
DE3540870A1 (de) Gewinde- oder steckverbinder
DE102005028564A1 (de) Schlauchrollbalgluftfeder
EP2055865B1 (fr) Elément d'enveloppe de bâtiment
DE2738522B2 (de) Druckmittelbetriebener Arbeitszylinder

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

17P Request for examination filed

Effective date: 19990714

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE CH CY DE DK ES FI FR GB IT LI LU NL PT SE

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

Free format text: STATUS: THE APPLICATION HAS BEEN WITHDRAWN

18W Application withdrawn

Withdrawal date: 20001030