EP0313767A1 - Dispositif de serrage - Google Patents

Dispositif de serrage Download PDF

Info

Publication number
EP0313767A1
EP0313767A1 EP88114394A EP88114394A EP0313767A1 EP 0313767 A1 EP0313767 A1 EP 0313767A1 EP 88114394 A EP88114394 A EP 88114394A EP 88114394 A EP88114394 A EP 88114394A EP 0313767 A1 EP0313767 A1 EP 0313767A1
Authority
EP
European Patent Office
Prior art keywords
clamping device
actuating cylinder
actuating
pressure medium
sensors
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP88114394A
Other languages
German (de)
English (en)
Other versions
EP0313767B1 (fr
Inventor
Peter Schauss
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
Priority claimed from DE8714390U external-priority patent/DE8714390U1/de
Priority claimed from DE8804990U external-priority patent/DE8804990U1/de
Application filed by DE STA CO Metallerzeugnisse GmbH filed Critical DE STA CO Metallerzeugnisse GmbH
Priority to AT88114394T priority Critical patent/ATE62850T1/de
Publication of EP0313767A1 publication Critical patent/EP0313767A1/fr
Application granted granted Critical
Publication of EP0313767B1 publication Critical patent/EP0313767B1/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
    • B25B5/06—Arrangements for positively actuating jaws
    • B25B5/12—Arrangements for positively actuating jaws using toggle links
    • B25B5/122—Arrangements for positively actuating jaws using toggle links 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
    • B25B5/06—Arrangements for positively actuating jaws
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B5/00—Clamps
    • B25B5/16—Details, e.g. jaws, jaw attachments

Definitions

  • the invention relates to a clamping device, in particular toggle lever clamping device for fixing workpieces according to the preamble of the main claim.
  • Clamping devices of the type mentioned are well known and in use, so that no special printed evidence is required. Clamping devices of this type are required in order to clamp any workpieces for machining purposes on tables of processing machines, but in particular also to fix sheet metal parts or the like to one another in order to be able to weld them.
  • the actuation of the clamping arms on these devices is usually carried out with actuating cylinders which are pressurized pneumatically from one side and the other in order to be able to bring the clamping arm into the closed position on the one hand and into the open position on the other hand.
  • the pressure medium connections are attached laterally to the flanges forming the cylinder ends, ie, in particular the return pressure medium line extends laterally over the entire length of the actuating cylinder.
  • these sensors are located either on the head of the device or in the area of the actuating cylinder, with the cable routing also extending laterally on the devices.
  • Mechanically acting roller pushbuttons that work unaffected by external electromagnetic influences can practically not be used in such devices, since there is usually too little space available for this in the area of the head piece.
  • the invention is therefore based on the object to improve tensioning devices of the type mentioned in such a way that such lateral lateral line routing can be eliminated and the possibility is to be created, possibly also mechanically acting roller switch in the area of the actuating cylinder, i.e. to be able to arrange or use away from the head piece of the device.
  • the tensioning device can be designed such that the two end flanges of the actuating cylinder are extended towards the actuating rod side, and the piston rod-side flange is provided with an actuating rod passage.
  • the return pressure medium line is arranged between the two flanges and the pressure medium connections are arranged axially outgoing on the flange remote from the piston rod.
  • a design is also possible in such a way that a U-shaped extension piece is arranged on the cylinder on the actuating rod side, between the legs of which there is the adjustment path of the positioner and in its base part the reset pressure medium line runs, the piston rod side leg has an actuating rod passage and the piston rod dist leg has the reset pressure medium connection and a sensor line passage.
  • the return pressure medium supply line it is also possible to arrange it running in a thickened wall thickness of the cylinder, and with regard to the arrangement of the actuating rod, it is provided to fasten it by means of an angle piece attached to the free piston rod end, from which the actuating rod extends parallel to the piston rod , so that their position transmitter arranged at the free end moves in the area next to the actuating cylinder.
  • the sensors are then also arranged there at a distance from one another which corresponds to the piston end position distance.
  • the sensors in particular in the form of mechanically acting roller pushbuttons, whose cables are guided in the shortest possible way to the end of the actuating cylinder remote from the head piece can then also be arranged in this area without any problems.
  • the tensioning device is explained in more detail below with reference to the drawing of an exemplary embodiment.
  • the exemplary embodiment shown is a narrow construction, that is to say one in which the actuating cylinder and the piston are, for example, elongated in cross section.
  • the tensioning device consists of an actuating cylinder 3 with a head piece 23 on the piston rod side, and in which the adjusting mechanism for the tension arm 24 articulated on the head piece 23 is arranged.
  • the adjusting mechanism and the articulation of the tensioning arm 24 require no further explanation here, since these are elements of a known type. 2
  • this device is now designed such that at the free end 1 of the piston rod 2 parallel to the latter and pointing in the direction of the actuating cylinder 3, an actuating rod 5 provided at the free end with position sensors 4 are arranged.
  • the travel path W of the position transmitter 4 on the control rod 5 extends in the area of the actuating cylinder 3, namely parallel to its longitudinal axis 11.
  • the end position sensors 6 are arranged, for which preferred and advantageously mechanically acting roller switches are used.
  • the two pressure medium supply connections 7, 8 are arranged at the end of the actuating cylinder remote from the head piece, so that the pressure medium lines can be guided axially away from the end 9 of the actuating cylinder 3.
  • the line outlets 10 of the end position sensors 6 are arranged outgoing in the axial direction to the longitudinal axis 11 of the actuating cylinder 3 at the free end 9 of the cylinder 3.
  • actuating rod 5 with their associated sensors 6, 6 'and the reset pressure medium connection are arranged on the narrow side 12 of the device.
  • the two connecting flanges 13, 14 of the actuating cylinder 3 are designed to be extended toward the actuating rod side, the flange 13 on the head piece side being provided with an actuating rod penetration 15. Between the two flanges 13, 14 there is a sealed return pressure medium line 16, which establishes the connection to the pressure medium mouth 25 from the pressure medium connection 8 in the flange 14.
  • FIG. 1 it is also possible, according to FIG.
  • the return pressure medium line 16 extends, as indicated by dashed lines.
  • the leg 18 has an actuating rod penetration 15 and the other leg 19 has a sensor cable penetration 20.
  • a niche is formed to the side next to the actuating cylinder 3, in which the reset pressure medium supply line 16 extends in a well-protected manner and into which the free end of the actuating rod 5 provided with the position transmitter 4 also engages and in the area of which the two sensors 6 are arranged at a distance D from one another which corresponds to that of the piston end position distance.
  • this niche can be provided with a cover without problems, although the niche itself already provides protection for the elements mentioned.
  • the cable or the reset pressure medium connection 8 then run axially out of this niche or the elements forming this niche, so that all supply lines to the device can be connected axially to the end of the actuating cylinder 3 remote from the head piece, to which the other pressure medium connection 7 also extends axially is oriented.
  • the free end of the actuating rod 5 in front of the position transmitter 4 is advantageous provided with an extension 4 ', which is aligned either in the flange 14 or in the leg 19 of the extension 17, a bore 4', in which the extension 4 'can engage.
  • the length of the extension and the depth of the bore are dimensioned such that when the position transmitter 4 contacts the sensor 6, the free end of the extension 4 'is already covered by the bore 4'.
  • a guide and holding groove 29 is provided on the actuating cylinder 3 or on the U-shaped extension piece 17, in which the senso ren 6, 6 'moved and can be fixed in the desired position in a suitable manner.
  • the sensor 6 remote from the head piece is not guided directly in the groove 29, but is fastened to an intermediate piece 30 which is guided in the groove 29 and is provided with a projection 27 which projects into the actuating path W of the actuating rod 5. In this projection 27 is in alignment with the extension 4 'an extension guide bore 28.
  • This sensor 6 ⁇ serves to move the piston rod 2 extended in this case with low pressure up to the sensor 6,, which then switches the pressure system to full pressure in order to be able to act fully on the workpiece via the clamping arm 24.
  • the position of the adjustable sensor 6 ⁇ is to be made so that the full pressure is only switched on when the gap between the clamping arm 24 and the workpiece is smaller than a finger thickness. An essential safety requirement for such tensioning devices is thus easily met.
  • valve 6 is retracted in the basic position of the cylinder 3 and is on sensor 6 '.
  • a predetermined pressure is built up via valve 32 and pressure control valve 33 and cylinder 3 closes.
  • the valve 34 switches and the cylinder 3 or the tensioning device is operated with a full system pressure closed.
  • the return stroke can be initiated.
  • the valves 33 and 34 are switched to the basic position.
  • the valve 32 is switched to 35.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Jigs For Machine Tools (AREA)
  • Actuator (AREA)
EP88114394A 1987-10-29 1988-09-03 Dispositif de serrage Expired - Lifetime EP0313767B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88114394T ATE62850T1 (de) 1987-10-29 1988-09-03 Spannvorrichtung.

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE8714390U 1987-10-29
DE8714390U DE8714390U1 (de) 1987-10-29 1987-10-29 Spannvorrichtung
DE8804990U 1988-04-15
DE8804990U DE8804990U1 (de) 1988-04-15 1988-04-15 Spannvorrichtung

Publications (2)

Publication Number Publication Date
EP0313767A1 true EP0313767A1 (fr) 1989-05-03
EP0313767B1 EP0313767B1 (fr) 1991-04-24

Family

ID=25952160

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88114394A Expired - Lifetime EP0313767B1 (fr) 1987-10-29 1988-09-03 Dispositif de serrage

Country Status (5)

Country Link
US (1) US4923184A (fr)
EP (1) EP0313767B1 (fr)
JP (1) JPH01125139U (fr)
DE (1) DE3862562D1 (fr)
ES (1) ES2023238B3 (fr)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0406530A1 (fr) * 1989-07-07 1991-01-09 Josef-Gerhard Tünkers Dispositif de serrage avec levier à genouillère pour la construction en carrosserie
EP0636449A1 (fr) * 1993-07-26 1995-02-01 TÜNKERS MASCHINENBAU GmbH Dispositif de serrage avec levier à genouillère pour la construction en carrosserie
EP0803331A1 (fr) * 1996-04-25 1997-10-29 TÜNKERS MASCHINENBAU GmbH Dispositif de serrage à genouillère pour la construction en carrosserie
EP0842741A1 (fr) * 1996-11-18 1998-05-20 ISI Norgren, Inc. Dispositif de détection de la position d'un levier de serrage
EP0849047A1 (fr) * 1996-12-17 1998-06-24 DE-STA-CO Metallerzeugnisse GmbH Dispositif de serrage à genouillère avec moyens de détection de fin de course
US6076816A (en) * 1997-11-24 2000-06-20 I.S.I. International S.A. Toggle lever tightening device for use in the automotive industry
EP1068932A3 (fr) * 1999-07-16 2002-01-16 Norgren Automotive Inc. Soupape et système de contrôle de position intégrables dans un dispositif de serrage
DE202008009702U1 (de) 2008-07-17 2008-09-25 Tünkers Maschinenbau Gmbh Kniehebelspannvorrichtung, insbesondere zur Verwendung im Karosseriebau der Kfz-Industrie
CN101973001A (zh) * 2010-09-10 2011-02-16 安徽省芜湖仪器仪表研究所 一种零件夹紧机构及其使用方法
CN105382728A (zh) * 2015-12-02 2016-03-09 上海君屹工业自动化股份有限公司 一种大翻式工装压具
EP4296001A1 (fr) * 2022-06-21 2023-12-27 Ludwig Ehrhardt GmbH Dispositif de serrage

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5884903A (en) * 1995-10-30 1999-03-23 Btm Corporation Powered clamp and gauging apparatus
DE29700981U1 (de) * 1997-01-22 1997-03-13 DE-STA-CO Metallerzeugnisse GmbH, 61449 Steinbach Induktive Endstellungsabfrageeinrichtung
US6412845B1 (en) 2000-07-07 2002-07-02 Btm Corporation Sealed gripper
ATE277721T1 (de) 2001-04-19 2004-10-15 Univer Spa Kniehebelspannvorrichtung
ITMI20012240A1 (it) * 2001-10-25 2003-04-25 Luciano Migliori Dispositivo di bloccaggio con controllo ottico di posizione
US20040112936A1 (en) * 2002-08-29 2004-06-17 Tennessee Rand Co., Inc. Wire clamp
US20050035515A1 (en) * 2003-08-13 2005-02-17 Tennessee Rand Co., Inc. Tube clamp
US7290480B2 (en) * 2005-02-08 2007-11-06 Delaware Capital Formation, Inc. Swing cylinder
EP1967318A1 (fr) * 2007-03-06 2008-09-10 COMAU S.p.A. Dispositif de localisation et de verrouillage d'éléments d'une plaque métallique pressée avec un corps auxiliaire ayant des passages pour fixer de la tuyauterie
DE202012013044U1 (de) * 2012-02-28 2014-11-12 Springer Gmbh Antriebsvorrichtung zum Antreiben einer Vorrichtung zum Greifen und/oder Spannen eines Werkstückes, wie zum Beispiel eines Bleches oder dergleichen, und Vorrichtungen zum Greifen und/oder Spannen eines Werkstückes
CN103084887A (zh) * 2012-11-14 2013-05-08 柳州易舟汽车空调有限公司 涡旋盘型线加工夹具
JP6252950B2 (ja) * 2015-03-05 2017-12-27 Smc株式会社 クランプ装置
JP7201475B2 (ja) * 2019-02-26 2023-01-10 トヨタ自動車株式会社 クランプ装置

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2604759A (en) * 1951-03-20 1952-07-29 Neil V Smith Fluid pressure actuated tool driving and feeding equipment
DE3403961A1 (de) * 1984-02-04 1985-08-14 Josef-Gerhard 4030 Ratingen Tünkers Pneumatisch oder hydraulisch betaetigbare kniehebelspannvorrichtung zum spannen von karosserieteilen
EP0230028A2 (fr) * 1986-01-06 1987-07-29 Combustion Engineering, Inc. Extracteur hydraulique d'un bouchon de tube
US4736518A (en) * 1986-05-13 1988-04-12 Donaldson Company, Inc. Method and apparatus for construction of crimp seal pleated filter assembly

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1658962A (en) * 1924-05-10 1928-02-14 Thomas N Aikens Hydraulic shock absorber
US3454971A (en) * 1966-07-13 1969-07-15 Dyson & Sons Hold-down fixture
US4183502A (en) * 1978-06-16 1980-01-15 The United States Of America As Represented By The Secretary Of The Navy Hydraulic chain jack automatic latch control system
US4723767A (en) * 1986-08-08 1988-02-09 De-Sta-Co Division, Dover Resources, Inc. Rotary powered linear actuated clamp

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2604759A (en) * 1951-03-20 1952-07-29 Neil V Smith Fluid pressure actuated tool driving and feeding equipment
DE3403961A1 (de) * 1984-02-04 1985-08-14 Josef-Gerhard 4030 Ratingen Tünkers Pneumatisch oder hydraulisch betaetigbare kniehebelspannvorrichtung zum spannen von karosserieteilen
EP0230028A2 (fr) * 1986-01-06 1987-07-29 Combustion Engineering, Inc. Extracteur hydraulique d'un bouchon de tube
US4736518A (en) * 1986-05-13 1988-04-12 Donaldson Company, Inc. Method and apparatus for construction of crimp seal pleated filter assembly

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0406530A1 (fr) * 1989-07-07 1991-01-09 Josef-Gerhard Tünkers Dispositif de serrage avec levier à genouillère pour la construction en carrosserie
EP0636449A1 (fr) * 1993-07-26 1995-02-01 TÜNKERS MASCHINENBAU GmbH Dispositif de serrage avec levier à genouillère pour la construction en carrosserie
EP0803331A1 (fr) * 1996-04-25 1997-10-29 TÜNKERS MASCHINENBAU GmbH Dispositif de serrage à genouillère pour la construction en carrosserie
EP0842741A1 (fr) * 1996-11-18 1998-05-20 ISI Norgren, Inc. Dispositif de détection de la position d'un levier de serrage
EP0849047A1 (fr) * 1996-12-17 1998-06-24 DE-STA-CO Metallerzeugnisse GmbH Dispositif de serrage à genouillère avec moyens de détection de fin de course
US6076816A (en) * 1997-11-24 2000-06-20 I.S.I. International S.A. Toggle lever tightening device for use in the automotive industry
EP1068932A3 (fr) * 1999-07-16 2002-01-16 Norgren Automotive Inc. Soupape et système de contrôle de position intégrables dans un dispositif de serrage
US6557452B1 (en) 1999-07-16 2003-05-06 Norgren Automotive, Inc. Valve and position control system integrable with clamp
DE202008009702U1 (de) 2008-07-17 2008-09-25 Tünkers Maschinenbau Gmbh Kniehebelspannvorrichtung, insbesondere zur Verwendung im Karosseriebau der Kfz-Industrie
CN101973001A (zh) * 2010-09-10 2011-02-16 安徽省芜湖仪器仪表研究所 一种零件夹紧机构及其使用方法
CN101973001B (zh) * 2010-09-10 2012-09-05 安徽省芜湖仪器仪表研究所 一种零件夹紧机构及其使用方法
CN105382728A (zh) * 2015-12-02 2016-03-09 上海君屹工业自动化股份有限公司 一种大翻式工装压具
CN105382728B (zh) * 2015-12-02 2017-04-12 上海君屹工业自动化股份有限公司 一种大翻式工装压具
EP4296001A1 (fr) * 2022-06-21 2023-12-27 Ludwig Ehrhardt GmbH Dispositif de serrage

Also Published As

Publication number Publication date
US4923184A (en) 1990-05-08
EP0313767B1 (fr) 1991-04-24
JPH01125139U (fr) 1989-08-25
DE3862562D1 (de) 1991-05-29
ES2023238B3 (es) 1992-01-01

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