EP0894573A2 - Dispositif de serrage d'une pièce - Google Patents

Dispositif de serrage d'une pièce Download PDF

Info

Publication number
EP0894573A2
EP0894573A2 EP98106229A EP98106229A EP0894573A2 EP 0894573 A2 EP0894573 A2 EP 0894573A2 EP 98106229 A EP98106229 A EP 98106229A EP 98106229 A EP98106229 A EP 98106229A EP 0894573 A2 EP0894573 A2 EP 0894573A2
Authority
EP
European Patent Office
Prior art keywords
lever
tab
clamping
coupling joint
tension rod
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
EP98106229A
Other languages
German (de)
English (en)
Other versions
EP0894573A3 (fr
EP0894573B1 (fr
Inventor
Karsten Becker
Uwe Borgolte
Josef Kordtomeikel
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.)
Benteler Deutschland GmbH
Original Assignee
Benteler Deutschland 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 Benteler Deutschland GmbH filed Critical Benteler Deutschland GmbH
Publication of EP0894573A2 publication Critical patent/EP0894573A2/fr
Publication of EP0894573A3 publication Critical patent/EP0894573A3/fr
Application granted granted Critical
Publication of EP0894573B1 publication Critical patent/EP0894573B1/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

Definitions

  • Component clamps are used in various technical Areas used for the current fixation of workpieces. You have to work quickly and reliably as well Maintenance-free multiple load changes over long periods of use guarantee.
  • the guide slot may also be curved in an arc shape be.
  • the tab is designed so that the distance of the Coupling joints changeable with the piston rod and the lever is.
  • the resilient tab means that the clamping forces are infinite be avoided. With this, however, only that Tension limited, but no self-locking achieved become. In addition, the fatigue strength and durability should be the tab can be problematic. Your manufacturing is also expensive. In addition, the force limit dependent on the spring constant and the spring travel.
  • the invention is based on the prior art
  • the task is to create a component clamp that with a simple design using the toggle principle allows a limitation of the increase in force and it still ensures that in the clamping position too if the clamping energy fails, the clamping position Self-locking is guaranteed.
  • the essence of the invention is the fact that the Positive guidance for at least one end of the tension rod arranged roller with one to the coupling joint concave between lever and tab in its dead center End section is provided.
  • This concave end section begins just before the level that passes through the coupling joint extends between the lever and the tab if this coupling joint in the through the clamping position of the clamping arm is certain dead center, and ends behind this level.
  • the particular advantage of the invention is therefore the assurance the force limitation in a simple way the concave end section. This will make a flawless Self-locking after passing dead center guaranteed.
  • the component clamp is also very compact Construction, because of the path translation according to the invention only a little between the lever and the tab Stroke of the tension rod is required.
  • the invention also allows the pivoting angle of the Between the standby position and the To be able to set up the clamping position as desired. Only through the use of stroke-limiting pieces or through the exchange of the tension rod can open angles of in particular 45 °, 60 °, 90 ° and 115 ° up to a maximum Opening angle of 135 ° can be provided. Furthermore can easily integrate the component clamp Position query can be assigned.
  • the housing for storing the tension arm, lever, bracket and Tension rod is also designed so that one with the Low-tension abutment to fix the position of the workpieces to be machined releasably assigned to the housing can be.
  • a particularly useful embodiment of the invention consists in the features of claim 2. Then extends the concave end portion of the positive guidance over a length that the plane through the coupling joint overlapping between the lever and the tab at the dead center Swivel angle of the bracket from 6 ° to 10 °, preferably but 8 °. This is 4 ° above the level ensures the self-locking of the tab.
  • the concave end portion is preferred according to claim 3 curved in a circular arc. It has a radius, which plus the length of the tab between the coupling joints corresponds to the radius of the roller.
  • the positive guidance, the lever, the bracket and the roller in one connectable with the guide for the tension rod two-piece Housing arranged. That way these parts against external influences even in a rough Operation well protected.
  • the two-part design of the housing allows easy manufacture and trouble-free Assembly.
  • the guide is especially a cylinder formed when according to a preferred embodiment the tension rod as with a pressurized air or also with a hydraulic load Piston connected piston rod formed is. The necessary deflection of the tension rod at one Contact of the roller with the concave end portion caught by the seals on the cylinder for the tension rod.
  • Swivel shaft in the end sections carrying the articulated arms is polygonal.
  • the swivel shaft in particular be square.
  • the articulated arms are then with corresponding recesses and / or Provide clamps through which the articulated arms work properly can be fixed on the swivel shaft.
  • the pivot shaft and the lever are preferably a component, which are manufactured by turning and milling operations can.
  • the component clamp 1 comprises a cylinder 2 to which compressed air can be applied to guide a piston, not shown in detail with piston rod, one connected to cylinder 2 two-part housing 3 with an integrated not illustrated toggle lever system for transmission the force exerted by the compressed air on the piston a pivotable tension arm 4.
  • the tension arm 4 has a U-shape Configuration two articulated arms 5, which over Clamping pieces 6 on one led out of the housing 3 Ends square-shaped swivel shaft 7 releasable are attached.
  • the clamping position ST runs the longitudinal axis 8 of the clamping arm 4 perpendicular to the longitudinal axis 9 of the cylinder 2.
  • the compressed air connection of the annulus 2a is with 10 and that of the piston chamber 2b is designated 10a.
  • the tension arm 4 inside the housing 3 a rigid lever 11 connected in 90 ° offset.
  • the lever 11 forms one integral part of the swivel shaft 7.
  • the length L of the straight length section 22 corresponds the size of the pivot angle ⁇ of the tension arm 4 between the standby position BP and the clamping position ST. He runs in a straight line parallel to the longitudinal axis 9 of the cylinder 2.
  • the end section 23 is to the coupling joint 12 between the lever 11 and the tab 13 in its dead center (Clamping position ST of 4) concavely curved. It starts with 24 in front of the through the dead center coupling joint 12 extending to the longitudinal axis 9 of the cylinder 2 vertically extending plane E-E and ends at 25 behind this level E-E. Its arc length corresponds to L3 the angle 2 ⁇ between points 24 and 25.
  • the angle ⁇ between the plane E-E and points 24, 25 of the concave end section 23 is 4 ° in each case.
  • the operation of the component clamp 1 is as follows explained in more detail with reference to FIGS. 3 to 11.
  • the standby position is BP of the tension arm 4 shown.
  • the opening angle is ⁇ 135 °.
  • the component clamp 1 is fully open. It is 10 compressed air in the annulus via the compressed air connection 2a of the cylinder 2.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Jigs For Machine Tools (AREA)
  • Tension Adjustment In Filamentary Materials (AREA)
EP98106229A 1997-07-29 1998-04-06 Dispositif de serrage d'une pièce Expired - Lifetime EP0894573B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19732600 1997-07-29
DE19732600A DE19732600C2 (de) 1997-07-29 1997-07-29 Bauteilspanner

Publications (3)

Publication Number Publication Date
EP0894573A2 true EP0894573A2 (fr) 1999-02-03
EP0894573A3 EP0894573A3 (fr) 1999-04-28
EP0894573B1 EP0894573B1 (fr) 2003-04-02

Family

ID=7837232

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98106229A Expired - Lifetime EP0894573B1 (fr) 1997-07-29 1998-04-06 Dispositif de serrage d'une pièce

Country Status (4)

Country Link
US (1) US6206353B1 (fr)
EP (1) EP0894573B1 (fr)
BR (1) BR9803715A (fr)
DE (2) DE19732600C2 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000044531A1 (fr) * 1999-01-27 2000-08-03 Festo Ag & Co. Dispositif de serrage a genouillere
EP1225004A3 (fr) * 2001-01-19 2003-03-12 DE-STA-CO Metallerzeugnisse GmbH Dispositif d'entrainement pivotant
DE102004007346B3 (de) * 2003-11-04 2005-04-21 Tünkers Maschinenbau Gmbh Kniehebelspannvorrichtung - auch Spannwerkzeug wie Punktschweißvorrichtung mit Kniehebelgelenkanordnung, oder Clinchwerkzeug mit Kniehebelgelenkanordnung oder dergleichen -, zur Verwendung im Karosseriebau der Kfz-Industrie
ITUB20153120A1 (it) * 2015-08-13 2017-02-13 Pneumax S P A Unita' di attuazione del tipo a leva articolata a efficienza ottimizzata
CN110181439A (zh) * 2019-06-25 2019-08-30 京东方科技集团股份有限公司 用于夹紧卡匣的夹紧器件和卡匣组件

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6199846B1 (en) * 1998-04-28 2001-03-13 Isi Norgren, Inc. Electric power operated clamp with spring lock
ITMI20020683A1 (it) 2002-04-02 2003-10-02 Luciano Migliori Dispositivo di pinzatura per saldature laser
US7815176B2 (en) 2003-09-11 2010-10-19 Phd, Inc. Lock mechanism for pin clamp assembly
US7182326B2 (en) * 2004-04-02 2007-02-27 Phd, Inc. Pin clamp
US7516948B2 (en) * 2004-04-02 2009-04-14 Phd, Inc. Pin clamp accessories
US7448607B2 (en) * 2004-12-15 2008-11-11 Phd, Inc. Pin clamp assembly
US20070267795A1 (en) * 2006-02-06 2007-11-22 Parag Patwardhan Pin clamp transfer assembly and method of transferring a workpiece
MX2009014026A (es) 2007-06-19 2010-03-10 Phd Inc Ensamble de abrazadera de perno.
WO2009155261A1 (fr) * 2008-06-18 2009-12-23 Phd, Inc. Pince à broche à enlèvement
EP2177320A1 (fr) * 2008-10-15 2010-04-21 UNIVER S.p.A. Dispositif de commande à genouillère de type irréversible
JP5353629B2 (ja) 2008-11-14 2013-11-27 信越化学工業株式会社 熱硬化性樹脂組成物
CN102407422A (zh) * 2011-12-05 2012-04-11 安徽省芜湖仪器仪表研究所 一种气动夹紧自锁装置及其夹紧方法
CN110561472B (zh) * 2019-10-23 2022-09-20 烟台宇信科技有限公司 一种工件搬运抓手用双自锁定位夹紧机构
CN114012629A (zh) * 2021-11-26 2022-02-08 昌河飞机工业（集团）有限责任公司 一种自动夹紧装置

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2296494A1 (fr) * 1974-12-31 1976-07-30 Carel Fouche Languepin Dispositif de serrage pneumatique
DE3022376C2 (de) * 1980-06-14 1985-08-01 De-Sta-Co Metallerzeugnisse Gmbh, 6000 Frankfurt Kniehebelspannvorrichtung zum Festspannen von Werkstücken
DE3130942A1 (de) * 1981-08-05 1983-04-28 Tünkers Maschinenbau GmbH, 4030 Ratingen Druckmittelbetaetigbare kniehebelspannvorrichtung mit elastischem federgelenk und loesbar befestigtem spannarm
FR2555926B1 (fr) * 1983-12-02 1986-09-12 Franche Comte Alsace Etudes Te Dispositif de serrage pneumatique a genouillere
DE3528337A1 (de) * 1985-08-07 1987-02-19 Eugen Rapp Spannvorrichtung
ES2002520A6 (es) * 1985-09-24 1988-08-16 Fabrice Goussu Dispositivo de embridado de cabezas multiples con mado unico a distancia
FR2618713B3 (fr) * 1987-07-29 1990-03-30 Cecchi Gerard Dispositif de bridage
FR2630953B1 (fr) * 1988-05-06 1991-04-05 Genus Int Dispositif de bridage pour plaques ou profiles l'un contre l'autre
FR2639569B1 (fr) * 1988-11-25 1991-01-18 Polymatic Sa Tete de bridage a rattrapage de jeux
FR2754484B1 (fr) * 1996-10-15 1999-04-16 Robotic Perfectionnement pour dispositif de serrage du type comprenant un levier actionne par un piston
DE29713944U1 (de) * 1997-08-05 1997-10-02 Tünkers Maschinenbau GmbH, 40880 Ratingen Druckmittelbetätigbare Kniehebelspannvorrichtung

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000044531A1 (fr) * 1999-01-27 2000-08-03 Festo Ag & Co. Dispositif de serrage a genouillere
US6279887B1 (en) 1999-01-27 2001-08-28 Festo Ag & Co. Articulated lever tensioning device
EP1225004A3 (fr) * 2001-01-19 2003-03-12 DE-STA-CO Metallerzeugnisse GmbH Dispositif d'entrainement pivotant
DE102004007346B3 (de) * 2003-11-04 2005-04-21 Tünkers Maschinenbau Gmbh Kniehebelspannvorrichtung - auch Spannwerkzeug wie Punktschweißvorrichtung mit Kniehebelgelenkanordnung, oder Clinchwerkzeug mit Kniehebelgelenkanordnung oder dergleichen -, zur Verwendung im Karosseriebau der Kfz-Industrie
ITUB20153120A1 (it) * 2015-08-13 2017-02-13 Pneumax S P A Unita' di attuazione del tipo a leva articolata a efficienza ottimizzata
EP3130809A1 (fr) * 2015-08-13 2017-02-15 Pneumax S.p.A. Unité d'actionnement d'efficacité optimisée du type de levier articulé
EP3130809B1 (fr) 2015-08-13 2023-08-02 Pneumax S.p.A. Unité d'actionnement d'efficacité optimisée du type de levier articulé
CN110181439A (zh) * 2019-06-25 2019-08-30 京东方科技集团股份有限公司 用于夹紧卡匣的夹紧器件和卡匣组件

Also Published As

Publication number Publication date
US6206353B1 (en) 2001-03-27
EP0894573A3 (fr) 1999-04-28
DE19732600C2 (de) 2000-03-30
DE59807698D1 (de) 2003-05-08
DE19732600A1 (de) 1999-02-25
BR9803715A (pt) 1999-11-23
EP0894573B1 (fr) 2003-04-02

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