EP1023966A2 - Dispositif de serrage à genouillère - Google Patents

Dispositif de serrage à genouillère Download PDF

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Publication number
EP1023966A2
EP1023966A2 EP99123550A EP99123550A EP1023966A2 EP 1023966 A2 EP1023966 A2 EP 1023966A2 EP 99123550 A EP99123550 A EP 99123550A EP 99123550 A EP99123550 A EP 99123550A EP 1023966 A2 EP1023966 A2 EP 1023966A2
Authority
EP
European Patent Office
Prior art keywords
actuating
clamping device
rod
fluid
unit
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Withdrawn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
EP99123550A
Other languages
German (de)
English (en)
Other versions
EP1023966A3 (fr
Inventor
Thomas Lichtenberger
Uwe Glasenapp
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.)
Festo SE and Co KG
Original Assignee
Festo SE and Co KG
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 Festo SE and Co KG filed Critical Festo SE and Co KG
Publication of EP1023966A2 publication Critical patent/EP1023966A2/fr
Publication of EP1023966A3 publication Critical patent/EP1023966A3/fr
Withdrawn legal-status Critical Current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
    • B25B5/061—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
    • B25B5/06—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

  • the invention relates to a toggle clamp device, with a executed in the manner of a fluid-operated cylinder Actuating device with one end a bearing head is provided on which a clamping arm can be pivoted is supported by a toggle mechanism with an actuating rod of the actuating device in Active connection is established.
  • Such a toggle lever tensioning device works, for example from EP 0 575 888 B1.
  • the pivoting movement of the tension arm is mediated by a Toggle mechanism by one of the piston rod of the Working cylinder formed actuating rod, by the fluid application of an actuating piston connected to it to a linear extension or retraction movement can be driven.
  • the actuating device is built up in stages and at least two contains actuating units connected axially in series, each one motion-coupled to the operating rod Have actuating pistons which can be acted upon by fluid.
  • the area acted upon by the actuating fluid can be the actuator while maintaining small transverse dimensions enlarge the clamping device easily.
  • the Total actuation area is on multiple actuation pistons divided, the actuating units connected axially one behind the other belong and with the the swivel movement of the actuating rod causing the actuating arm is coupled in motion are. Because larger length dimensions of the clamping device are generally unproblematic at the place of use thus one specifically adapted to the respective application The actuation forces are interpreted.
  • Such an arrangement is sufficient especially high security requirements, since they are a Realize force-graded clamping movement of the clamping arm leaves. For example, it is possible to start at the Tensioning movement of the tensioning arm and approximately until it is reached of a workpiece to be clamped only a reduced number of actuating pistons to activate so that the actuating forces are low and the risk of injury is reduced in cases is where a person accidentally gets into the swivel path of the tension arm engages.
  • one or more additional actuating pistons can be switched on to activate the toggle effect to obtain the required higher actuation forces.
  • this is particularly useful two-stage structure of the actuator, so that from a tandem drive could be spoken, whereby to tension initially only one actuating piston is pressurized with fluid becomes and only at the end of the rod stroke the second actuating piston is added.
  • the actuating piston during the tensioning movement of the tension arm causing extension movement of the actuating rod be pressurized depending on the stroke.
  • the corresponding Signals can be generated, for example, by suitable sensors are caused.
  • all Actuating piston a common actuating rod assigned to at least one or those actuation units interspersed between the bearing head and the rear operating unit of the operating device are located.
  • each actuating unit has a a tubular middle part and end walls having housing unit, so that overall a modular structure is possible. It is convenient provided that the on the axial sides facing each other two adjacent actuating units provided end walls formed by a single common partition are thus the closing function of both adjacent to each other Actuators takes over. In this way can the number of components and the overall length of the actuator to reduce.
  • the toggle lever clamping device shown has a elongated, like a fluid-operated cylinder trained actuator 1 and one at a axial end face attached to the actuator 1 and determined, for example, by screw connections Bearing head 2.
  • tension arm 3 pivotally mounted about a pivot axis 4. He can therefore be between the pictured and a release position defining end position and a not shown, another end position defining a clamping position be pivoted according to double arrow 5.
  • a common use for the toggle clamp is the releasable fixation of one or more workpieces during a manufacturing or assembly process. It is relevant workpiece in the release position to any Manipulations released while in the cocked position is clamped by the tension arm 3.
  • the swivel movement from the release position to the clamping position is the following as a tensioning movement, the opposite movement as a release movement designated.
  • the pivoting movement 5 of the tension arm 3 is controlled by an actuating rod 6 of the actuating device 1. It protrudes from the end of what is generally designated by reference number 7 Housing of the actuator 1 out and plunges into the bearing head 2, being in the bearing head 2 located outer end portion 8 via a toggle mechanism 12 is in drive connection with the tension arm 3.
  • the toggle mechanism 12 includes in the embodiment a pivotally connected to the tension arm 3 pivot lever 10, on which an intermediate member is located at a radial distance from the pivot axis 4 11 is articulated, which in turn with the outer End section 8 of the actuating rod 6 in an articulated connection stands.
  • the actuating device 1 is advantageously multi-stage built up and consists of two axially connected in series Actuators 13, 13 'together. Any of these Actuators 13, 13 'includes one with the actuator rod 6 axially motion-coupled actuating pistons 14, 14 ', with the mediation of a whole with Reference number 15 provided control device individually a fluidic and in particular a pneumatic pressure medium can be applied to the linear entry movement or to cause the actuating rod 6 to extend.
  • Each actuating unit 13, 13 ' has one inside the Housing 7 arranged receiving space 16, 16 ', in which one the two actuating pistons 14, 14 'housed axially displaceable is.
  • Each receiving space 16, 16 ' is axially from a front and a rear end wall 22, 23; 22 ', 23' limited.
  • Prefers are the front and rear facing each other End walls 22 ', 23 of the two actuating units 13, 13 'executed in structural unit and are jointly by one single partition 24 formed. Between this partition 24 and the front end wall 22 of the front actuator 13 and the rear end wall 23 'of the rear actuation unit 13 'each extends a tubular Middle part 25, 25 ', which is the respective assigned receiving space 16, 16 'limited on the circumference.
  • each actuator 13, 13 'over has a housing unit consisting of a tubular Middle part 25, 25 'and at its two ends arranged front and rear end walls 22, 23; 22 ', 23'.
  • the actuating rod penetrates 6 all between the bearing head 2 and the opposite Associated end of the actuator 1 rear operating unit 13 'lying operating units, in the present case only one fully enforced Actuating unit 13 is present.
  • the toggle mechanism 12 axially opposite end of the actuating rod 6 is located in the rearmost actuation unit 13 ', so that it does not penetrate the rear end wall 23' and only through the other end walls, under Sealing, penetrates.
  • the actuating device 1 could be continuous one-piece operating rod 6 may be provided.
  • a multi-part structure of the Art that the actuating rod 6 from several coaxial successively arranged elongated rod elements 26, 26 'is composed.
  • the front rod element 26 protrudes at the end of the housing 7 and forms the Toggle mechanism 12 engaging outer end portion 8.
  • connection areas between axially adjacent rod elements 26, 26 ' are expediently chosen so that an actuating piston 14 is fixed there at the same time leaves.
  • the rod elements 26, 26 'under simultaneous penetration by the actuating piston 14 with each other be screwed.
  • the one at the back end of the rod elements 26, 26 'existing connecting means 27 can used in the rearmost actuation unit 13 ' in cooperation with complementary lanyards 28 to fix the rear actuating piston 14 '.
  • each of the work rooms 17, 17 '; 18, 18 ' opens a separate Fluid channel 32, 33; 32 ', 33', which runs in the housing 7 and elsewhere at a suitable location on the outer surface of the Housing 7 opens where there are further fluid lines 34, 34 'of the control device 15.
  • the actuating fluid supplied or fed acts on on the two end faces of the actuating pistons 14, 14 ' the intended exposure areas and calls on them Way the linear movement of the actuating rod 6 in the or entry sense.
  • the actuator 1 Due to the axially multi-stage design of the actuator 1 can be used with small transverse or radial dimensions realize a very high total area of application, which results from the sum of the exposure areas of the individual Actuating piston 14, 14 'is composed. In this way can achieve high positioning forces despite the extremely narrow design become.
  • an electronic control unit is dash-dotted 36 indicated, on the one hand with a sensor device 37, 37 'and the other with the drives of the two Control valves 35, 35 'is coupled.
  • the sensor device 37 reports predetermined axial positions of one or more actuating pistons 14, 14 ', depending on the control valves 35, 35 'to operate independently, each of which one for the operation of one of the two actuation units 13, 13 'is responsible. This way altogether very different operating modes realize to account for each use case to be able to wear.
EP99123550A 1999-01-27 1999-11-26 Dispositif de serrage à genouillère Withdrawn EP1023966A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE29901364U DE29901364U1 (de) 1999-01-27 1999-01-27 Kniehebel-Spannvorrichtung
DE29901364U 1999-01-27

Publications (2)

Publication Number Publication Date
EP1023966A2 true EP1023966A2 (fr) 2000-08-02
EP1023966A3 EP1023966A3 (fr) 2002-05-08

Family

ID=8068529

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99123550A Withdrawn EP1023966A3 (fr) 1999-01-27 1999-11-26 Dispositif de serrage à genouillère

Country Status (2)

Country Link
EP (1) EP1023966A3 (fr)
DE (1) DE29901364U1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102581633A (zh) * 2012-02-24 2012-07-18 苏州大学 双肘杆自锁夹紧装置
CN102601635A (zh) * 2012-04-01 2012-07-25 苏州大学 一种机电液一体化均压夹紧装置
CN102699720A (zh) * 2012-06-25 2012-10-03 苏州大学 夹紧装置

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006022950A1 (de) * 2006-05-17 2007-11-22 De-Sta-Co Europe Gmbh Spannvorrichtung zum Festlegen von Werkstücken
DE102007045055A1 (de) * 2007-09-20 2009-04-02 Achim Bruchmann Für Druckluft betätigten Hebelspanner
CN102658489B (zh) * 2012-05-28 2016-03-16 苏州大学 一种夹紧装置

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3385172A (en) * 1966-03-31 1968-05-28 Sylvan James Kaminga Detachably ganged variable capacity cylinder construction
FR2391844A1 (fr) * 1977-05-25 1978-12-22 Manceau Marcel Verin hydraulique a courses differentielles
DE9004624U1 (fr) * 1990-04-12 1990-08-23 Schlueter, Volker, 5000 Koeln, De
FR2739149A1 (fr) * 1995-09-25 1997-03-28 Dk Le Guen Et Hemidy Verin hydraulique a quadruple effet
DE19644832A1 (de) * 1996-10-29 1998-04-30 Karlheinz Menkhoff Gelenkspanner

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3385172A (en) * 1966-03-31 1968-05-28 Sylvan James Kaminga Detachably ganged variable capacity cylinder construction
FR2391844A1 (fr) * 1977-05-25 1978-12-22 Manceau Marcel Verin hydraulique a courses differentielles
DE9004624U1 (fr) * 1990-04-12 1990-08-23 Schlueter, Volker, 5000 Koeln, De
FR2739149A1 (fr) * 1995-09-25 1997-03-28 Dk Le Guen Et Hemidy Verin hydraulique a quadruple effet
DE19644832A1 (de) * 1996-10-29 1998-04-30 Karlheinz Menkhoff Gelenkspanner

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102581633A (zh) * 2012-02-24 2012-07-18 苏州大学 双肘杆自锁夹紧装置
CN102601635A (zh) * 2012-04-01 2012-07-25 苏州大学 一种机电液一体化均压夹紧装置
CN102699720A (zh) * 2012-06-25 2012-10-03 苏州大学 夹紧装置
CN102699720B (zh) * 2012-06-25 2015-12-30 苏州大学 夹紧装置

Also Published As

Publication number Publication date
DE29901364U1 (de) 1999-05-06
EP1023966A3 (fr) 2002-05-08

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