EP0317924A2 - Dispositif de serrage - Google Patents

Dispositif de serrage Download PDF

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Publication number
EP0317924A2
EP0317924A2 EP88119279A EP88119279A EP0317924A2 EP 0317924 A2 EP0317924 A2 EP 0317924A2 EP 88119279 A EP88119279 A EP 88119279A EP 88119279 A EP88119279 A EP 88119279A EP 0317924 A2 EP0317924 A2 EP 0317924A2
Authority
EP
European Patent Office
Prior art keywords
stop
square
clamping
clamping device
counter
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Withdrawn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
EP88119279A
Other languages
German (de)
English (en)
Other versions
EP0317924A3 (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
Application filed by DE STA CO Metallerzeugnisse GmbH filed Critical DE STA CO Metallerzeugnisse GmbH
Publication of EP0317924A2 publication Critical patent/EP0317924A2/fr
Publication of EP0317924A3 publication Critical patent/EP0317924A3/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Withdrawn legal-status Critical Current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
    • B25B5/16—Details, e.g. jaws, jaw attachments
    • 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 tensioning device, in particular toggle lever tensioning device according to the preamble of the main claim.
  • the end or clamping position of the clamping arm is given by the possible end position of the piston or the actuating mechanism.
  • it has turned out to be desirable to be able to pivot the clamping arm towards the workpiece for example, to ensure the correct assignment of the workpiece and the clamping arm and / or for setting up pieces to be clamped or installing the clamping device to the workpiece to be able to attach suitable pressure pieces or the like to the tensioning arm, for example, without there when the tension arm actually takes its end or tension position.
  • this cannot be achieved with one or the other type of clamping devices, since their clamping arms can only ever be pressed into the clamping end position.
  • an adjustable stop in the form of a simple screw is known, but which does not act directly on the tension arm, but on a piston rod head piece, i.e. practically directly on the piston rod end.
  • this known stop in the form of an adjustable screw is not suitable for enabling a pre-defined setting of the stop surface between the tension arm and stop.
  • the invention is therefore based on the object of improving a tensioning device of the generic type in such a way that the tensioning arm of such devices can also be pivoted into other positions, with the proviso that with a "range of positions" with predetermined defined positions from over dead center to Before dead center positions a surface pressure between clamping arm and stop surface is guaranteed.
  • the users of such tensioning devices are advantageously given various but defined setting options, which make it possible to operate such devices with several possible settings of the stop, from an over-center position to positions that are before the dead center position.
  • “Relatively adjustable” is also to be understood to mean that the stop seated on the head piece can be arranged in a fixed manner and its counter-stop surface can be adjustable on the tensioning arm.
  • Various embodiments are possible for realizing the adjustability of the tensioning device according to the invention, but the embodiment according to claims 2 to 4 is preferred, since it is most clearly to handle, is easiest to accommodate on the head piece and also offers the possibility of easily changing the different To be able to take into account the inclined positions of the counter-stop surface on the clamping arm, which result from the differently adjustable angular positions of the clamping arm.
  • a rough presetting of the stop surface in question towards the counter-stop surface is sufficient, since the square, since this does not have to be fixed, automatically with its pre-oriented stop surface under the force of the clamping arm in parallel position to the counter-stop surface sets.
  • the device can be equipped with an end position indicator for such a pre-orientation, but also for an exact end position setting.
  • tensioning device has the following meaning for practical use:
  • Such tensioning Devices must be installed on any stationary holder or carrier of a processing station, in such a way that workpieces of the same type can always be securely fixed by means of a clamping arm as a result of processing.
  • a clamping arm For this position or clamping correct installation, it is now important that this is done with a position of the clamping arm in which it rests on the relevant bearing surface of the workpiece, but it must be ensured that this is not yet the actual clamping end position.
  • the requirement is met that the at least one stop surface 1 of the stop 2 is arranged such that it can be adjusted relative to the counter-stop surface 3 of the tensioning arm 4, and the counter-stop surfaces 3 in any position in parallel to the stop surface reached.
  • the stop 2 is designed as a square and is provided with lateral, cylindrical bearing journals 5, which are eccentrically offset together with the longitudinal central axis 6 of the square, in such a way that the shortest vertical distances D1-D4 are dimensioned differently from the circumference of the pin 5 to the respectively adjacent square surface 1 '.
  • the counter stop surface 3 is adjustable in the joint-side part 4' of the clamping arm 4, which by means of the joint 11 in Head piece 8 is pivotally mounted.
  • part 12 is part of the adjustment mechanism, which requires no further explanation here. Since the stop 2 'with its against the clamping arm 4 stop surfaces 2' is rotatable, this surface 2 'automatically adjusts to the counter-stop surface 3 when this is applied.
  • the embodiment shown in FIG. 4 differs from the above-described embodiments in that the stop 2 is in the form of an adjusting element 15, in the course of which three stop angle-oriented stop surfaces 1 ⁇ are arranged, the distances D 1 - D 3 of which are 5 different sizes from the circumferential surface of the bearing journal to have.
  • One of the pins 5, which are mounted according to FIG. 2 in the side flanks 8 'of the head piece 8, is provided on its circumference with screw grooves into which the gears of a small adjusting screw rotatably mounted in the corresponding flank 8' of the head piece 8 13 intervene.
  • the stop surfaces 1 ⁇ can thus be brought into the desired parallel position to the counter-stop surface 3 of the clamping arm.
  • a fixation is also not necessary here, since the small adjusting screw 13 prevents the adjusting element 15 from being automatically adjusted.
  • the position indicator 16 As far as the position indicator 16 is concerned, this can be implemented in various ways. Thus, as indicated in FIG. 2, it can be a small, externally attached pointer. Furthermore, small noses (Fig. 4, 5) on the Ver adjusting elements 7 'also suitable. But it is also possible as a position indicator in the preferred embodiment according to FIG. 2, 3 markings in the connecting surfaces 1 '. Insofar as pointers or noses are provided, corresponding setting markings can be provided on the head piece 8, if necessary at all.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Clamps And Clips (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Jigs For Machine Tools (AREA)
EP88119279A 1987-11-22 1988-11-20 Dispositif de serrage Withdrawn EP0317924A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE8715476U DE8715476U1 (de) 1987-11-22 1987-11-22 Spannvorrichtung
DE8715476U 1987-11-22

Publications (2)

Publication Number Publication Date
EP0317924A2 true EP0317924A2 (fr) 1989-05-31
EP0317924A3 EP0317924A3 (fr) 1990-03-21

Family

ID=6814351

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88119279A Withdrawn EP0317924A3 (fr) 1987-11-22 1988-11-20 Dispositif de serrage

Country Status (2)

Country Link
EP (1) EP0317924A3 (fr)
DE (1) DE8715476U1 (fr)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9417667U1 (de) * 1994-11-08 1995-01-05 DE-STA-CO Metallerzeugnisse GmbH, 61449 Steinbach Spannvorrichtung
EP0771614A3 (fr) * 1995-10-30 1997-07-23 Btm Corp Dispositif de serrage et de mesure motorisé
US5871250A (en) * 1997-03-31 1999-02-16 Btm Corporation Sealed straight line gripper
US6076816A (en) * 1997-11-24 2000-06-20 I.S.I. International S.A. Toggle lever tightening device for use in the automotive industry
US6115898A (en) * 1995-06-06 2000-09-12 Btm Corporation Force multiplying apparatus for clamping a workpiece and forming a joint therein
FR2812576A1 (fr) * 2000-08-04 2002-02-08 Smc Kk Dispositif de serrage
DE10047798A1 (de) * 2000-09-23 2002-04-18 Ms Trade Gmbh & Co Abstützvorrichtung für eine Golftasche
US6412845B1 (en) 2000-07-07 2002-07-02 Btm Corporation Sealed gripper
DE202008009702U1 (de) 2008-07-17 2008-09-25 Tünkers Maschinenbau Gmbh Kniehebelspannvorrichtung, insbesondere zur Verwendung im Karosseriebau der Kfz-Industrie

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9000606U1 (de) * 1990-01-20 1991-05-23 De-Sta-Co Metallerzeugnisse Gmbh, 6000 Frankfurt Spannvorrichtung

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1298055B (de) * 1964-10-08 1969-06-19 Blatt Leland F Kniehebel-Einspannvorrichtung
US4021027A (en) * 1976-05-17 1977-05-03 Blatt Leland F Power wedge clamp with guided arm
FR2409819A1 (fr) * 1977-11-29 1979-06-22 Cecchi Gerard Dispositif de serrage a commande pneumatique
FR2484310A1 (fr) * 1980-06-14 1981-12-18 Sta Co Mettallerzeugnisse Gmbh Dispositif de serrage a genouillere, notamment pour serrer des elements de carrosserie
US4458889A (en) * 1982-09-29 1984-07-10 Dover Corporation (De-Sta-Co. Div.) Locking power clamp
US4496138A (en) * 1982-03-26 1985-01-29 Blatt Leland F Power operated clamp
US4620696A (en) * 1983-08-10 1986-11-04 Blatt Leland F Power clamp

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2222686B2 (de) * 1972-05-09 1980-06-12 Tuenkers Maschinenbau Gmbh, 4030 Ratingen Druckmittelbetatigte Kniehebelspannvorrichtung, insbesondere für Karosserieteile
DE8606451U1 (de) * 1986-03-08 1986-06-12 De-Sta-Co Metallerzeugnisse Gmbh, 6000 Frankfurt Kniehebelspannvorrichtung

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1298055B (de) * 1964-10-08 1969-06-19 Blatt Leland F Kniehebel-Einspannvorrichtung
US4021027A (en) * 1976-05-17 1977-05-03 Blatt Leland F Power wedge clamp with guided arm
FR2409819A1 (fr) * 1977-11-29 1979-06-22 Cecchi Gerard Dispositif de serrage a commande pneumatique
FR2484310A1 (fr) * 1980-06-14 1981-12-18 Sta Co Mettallerzeugnisse Gmbh Dispositif de serrage a genouillere, notamment pour serrer des elements de carrosserie
US4496138A (en) * 1982-03-26 1985-01-29 Blatt Leland F Power operated clamp
US4458889A (en) * 1982-09-29 1984-07-10 Dover Corporation (De-Sta-Co. Div.) Locking power clamp
US4620696A (en) * 1983-08-10 1986-11-04 Blatt Leland F Power clamp

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9417667U1 (de) * 1994-11-08 1995-01-05 DE-STA-CO Metallerzeugnisse GmbH, 61449 Steinbach Spannvorrichtung
EP0711632A1 (fr) 1994-11-08 1996-05-15 DE-STA-CO Metallerzeugnisse GmbH Moyens de serrage
US6115898A (en) * 1995-06-06 2000-09-12 Btm Corporation Force multiplying apparatus for clamping a workpiece and forming a joint therein
EP0771614A3 (fr) * 1995-10-30 1997-07-23 Btm Corp Dispositif de serrage et de mesure motorisé
US5884903A (en) * 1995-10-30 1999-03-23 Btm Corporation Powered clamp and gauging apparatus
US5871250A (en) * 1997-03-31 1999-02-16 Btm Corporation Sealed straight line gripper
US6076816A (en) * 1997-11-24 2000-06-20 I.S.I. International S.A. Toggle lever tightening device for use in the automotive industry
US6412845B1 (en) 2000-07-07 2002-07-02 Btm Corporation Sealed gripper
FR2812576A1 (fr) * 2000-08-04 2002-02-08 Smc Kk Dispositif de serrage
DE10047798A1 (de) * 2000-09-23 2002-04-18 Ms Trade Gmbh & Co Abstützvorrichtung für eine Golftasche
DE202008009702U1 (de) 2008-07-17 2008-09-25 Tünkers Maschinenbau Gmbh Kniehebelspannvorrichtung, insbesondere zur Verwendung im Karosseriebau der Kfz-Industrie

Also Published As

Publication number Publication date
EP0317924A3 (fr) 1990-03-21
DE8715476U1 (de) 1989-03-23

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