EP2218549A1 - Dispositif doté d'un levier pouvant être entraîné dans des directions opposées par un entraînement à l'aide d'un actionneur et d'un agencement articulé de levier à genouillère - Google Patents

Dispositif doté d'un levier pouvant être entraîné dans des directions opposées par un entraînement à l'aide d'un actionneur et d'un agencement articulé de levier à genouillère Download PDF

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Publication number
EP2218549A1
EP2218549A1 EP09012060A EP09012060A EP2218549A1 EP 2218549 A1 EP2218549 A1 EP 2218549A1 EP 09012060 A EP09012060 A EP 09012060A EP 09012060 A EP09012060 A EP 09012060A EP 2218549 A1 EP2218549 A1 EP 2218549A1
Authority
EP
European Patent Office
Prior art keywords
actuator
axis
housing head
pivot axis
pivot
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
EP09012060A
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German (de)
English (en)
Other versions
EP2218549B1 (fr
Inventor
Josef-Gerhard Tünkers
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.)
Tuenkers Maschinenbau GmbH
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Tuenkers Maschinenbau GmbH
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Publication date
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Publication of EP2218549A1 publication Critical patent/EP2218549A1/fr
Application granted granted Critical
Publication of EP2218549B1 publication Critical patent/EP2218549B1/fr
Active 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

  • the invention relates to a device having a movable actuator arranged in opposite directions by a drive in the axial direction by rectilinear strokes in a housing, a lever between a working position about a housing head fixed axis about a housing head fixed axis by a limited angular extent in opposite directions.
  • the actuator maximum enters the housing head, and an opening position drives pivotally, for example, one or more masses interchangeable associated or are, in particular for use in the bodywork of the automotive industry, wherein the actuator via an actuator coupling axis pivotally mounted with a link assembly one Toggle joint and the link assembly in turn via a handlebar pivot axis with a connecting link assembly, which in turn is pivotally connected to the housing head fixed axis, wherein in the working position, the handlebar pivot axis is pivoted at a distance next to the housing head axis maximum up to the outer end of the housing head interior and the toggle joint assembly in turn in dead center or over-center position extending through the centers of rotation of the actuator coupling axis on the one hand and the handlebar pivot axis on the other hand extending straight connecting line perpendicular or approximately perpendicular to the longitudinal axis of the actuator.
  • Devices according to the presumed genus are known, for example as so-called pivoting units, inter alia, in the bodywork of the automotive industry. There, they serve to locate various devices, for example toggle-type tensioning devices, for locating parts of robots in production lines, for attaching and moving heavy components, such as tubular grate assemblies having toggle clamps or centering devices, welding devices, gluing devices or the like , Will such devices used as swiveling devices, they are usually driven by compressed air, such that the actuator designed as a piston rod is driven in a lift-movable manner by an alternately on both sides by pressure medium pressure, in particular by compressed air to be acted upon piston.
  • a lever for example a clamping lever, pivotally connected, which is pivotally connected over a certain angular range, for example by 135 °.
  • the lever pivotably coupled to the housing-mounted lever serves as a so-called tensioning lever, with which so-called contour pieces are connected, which cooperate with a fixed abutment on the chuck or the like, also called jaws, for example, for metal sheets tension and hold until they are permanently connected, for example by gluing, clinching, spot welding or the like.
  • body panels can be stretched and held in an assembly line until they are connected to the desired component, for example a body of a motor vehicle.
  • so-called centering bolts that engage through openings in body panels can be moved in this way to center body panels in their respective desired location in which they then suitable fasteners, such as spot welding, gluing, clinching or the like, are connected.
  • the invention has the object of providing a device according to the presumed genus in such a way that the device reaches a uniform as possible gear and in particular when returning the lever from its maximum open position results in a favorable torque.
  • a constant or approximately constant torque over the entire pivoting angle range of the arm over its housing head fixed pivot axis can be achieved.
  • This angle range can be, for example, a maximum of 185 ° to 180 °.
  • This lever arm is compared to the prior art, in the working position, for example, located in a clamping position clamping arm, the center of rotation of the handlebar pivot axis is right next to the center of rotation of the housing head fixed axis, such that a two of these centers of rotation connecting straight line the longitudinal axis of Handlebar arrangement in dead center position intersects at right angles, offset so that now this line intersects the longitudinal axis of the handlebar assembly at an acute angle.
  • the pivot center of the actuator dome axis relative to the prior art moves so low that the distance between the center of rotation of the housing head axis of the arm, for example a clamping arm, and the center of rotation of the actuator coupling axis is significantly increased, so that the Force with which the actuator, for example, the piston rod of an alternately on both sides by pressure medium pressure, in particular by compressed air to be acted upon piston which is acted upon in a piston-cylinder unit, which is coaxially connected to the housing head, acts on a large lever arm.
  • the Hubverstellkolben can be arranged with radial play in the cylinder. It may also be advantageous to form the actuator and the Hubverstellglied as mutually motorized telescopically adjustable parts, as it is also possible and may be within the scope of the inventive idea to form the actuator and the Hubverstellglied as meshing toothed gear with a rack.
  • the bottom of the cylinder is provided with a closure member through which the Hubverstellkolben or the Hubverstellglied are adjustable and lockable from the outside in both directions.
  • the adjusting member or the adjusting piston with a suitable head to attack be formed of a tool that is adjustable and lockable from the outside through the bottom of the cylinder.
  • the acute angle is 10 ° to 50 °, while in the embodiment according to claim 5 15 ° to 45 ° and in the embodiment according to claim 6 22.5 ° to 45 °.
  • Claim 7 describes a preferred embodiment.
  • an adjustment of the stroke can be achieved in that the actuator is designed strokever modifiable in length. This allows the swivel angle of the housing head to be fixed Change the pivot axis of the pivoting lever accordingly. In the embodiment according to claim 13 , this is done continuously.
  • claim 14 proposes a particularly advantageous embodiment for the practice in which a screw for adjusting the length of the actuator or the stroke adjustment is used.
  • Reference numeral 1 designates a housing head designed as a clamping head, on which a drive 2 formed as a piston-cylinder unit coaxially adjoins.
  • This drive 2 consists in the illustrated embodiment substantially of a cylinder 3, in which a piston 4 is guided longitudinally displaceable and sealing.
  • the piston 4 designed as a piston rod actuator 5 is integrally connected.
  • the actuator 5 enters through a wall 6 sealed in an interior 7 of the housing head 1 a.
  • the housing head 1 and the drive 2 can materially in one piece or functionally in one piece, for example by screws (not shown), be connected.
  • the piston 4 is controlled via connecting lines 8 and 9 alternately pressure medium pressure, in particular compressed air supplied, whereby the actuator 5 performs a linear stroke movement in the direction T and V.
  • Hubverstellkolben is referred to, which is integrally coupled with a Hubverstellglied 11.
  • the Hubverstellglied 11 may be a screw which can be in a corresponding internal thread (not shown) in a blind bore 12 of the actuator 5 screw more or less far, thereby the stroke of the piston 4 is changed.
  • the Hubverstellkolben 10 is not guided tikstoffstoffbuchmpdicht in the illustrated embodiment in the cylinder 3, so that the fed through the connecting line 9 fluid pressure on the Hubverstellkolben 10 past the piston 4 can act. If necessary, the Hubverstellkolben 10 may also be provided with one or more overflow openings.
  • a closure member is disposed in the bottom 14 of the cylinder 3, which can be removed if necessary (screw plug or the like) to the Hubverstellglied 11 by a suitable tool, for example with a screwdriver or a socket wrench, which engages in the head 15 Move more or less far into the blind bore 12 or move out, thereby changing the stroke of the actuator 5.
  • a suitable lock for example, a lock nut (not shown) may be provided, with which the adjusting member 11 can also be locked in the respective desired position.
  • the actuator 5 is pivotally connected via a Stellgliedkuppelachse 16 at its in the interior 7 of the trained as a clamping head housing head 1 end portion with a link assembly 17, the one or more handlebars or a clevis can exist. Also, the actuator 5 may be designed at its free end as a clevis.
  • the link assembly 17 in turn is connected via a link pivot axis 18 with a connecting link assembly 19 also pivotally connected.
  • the longitudinal axes of the actuator dome axis 16 and the longitudinal axis of the link pivot axis 18 are parallel to each other.
  • the connecting link assembly 19 may as well as the link assembly 17 consist of several links or elements of a fork.
  • the connecting link assembly 19 is connected to a fixed in the walls of the housing head 1, but pivotally mounted axis 20 pivotally connected.
  • the axis 20 has at its apparent from the drawing, outwardly projecting end portions a square configuration for the arrangement of an arm 21, but is formed at their located in the bearings of the housing head 1 length sections in cross-section circular and there, for example, in bearings, in particular Needle roller bearings, stored with low friction.
  • the arm 21 is thus pivotally arranged in the direction A or B by a limited angle ⁇ ( Fig. 4 ), which may be a maximum of 135 ° in the illustrated embodiment, when the Hubverstellglied 11 is set accordingly and the piston 4 allows a corresponding stroke, whereby the pivot angle of the arm 21 can be limited and adjusted accordingly and changed.
  • the arm 21 may be formed as a tensioning arm of a toggle-type tensioning device or may be for receiving a load, for example other toggle-lever tensioning devices of a latticework on which centering devices or toggle-type tensioning devices, welding devices or the like are arranged. In this case, the device would be designed as a so-called pivot unit. If the apparatus shown in the drawing is used as a toggle-type clamping device, the arm 21 designed as a tensioning arm is assigned an abutment (not shown), also called a jaw. On the arm 21 and on the jaw, not shown, contour pieces are arranged in this case, for example, which cooperate with the workpieces to be clamped, in particular sheet metal in the bodywork of the automotive industry. Such contour pieces are replaceably arranged on the arm 21 and / or the jaw, not shown.
  • the housing head 1 may be closed, or at its upper end portion (seen in the plane of the drawing) may be fork-shaped.
  • sensors it is possible to assign sensors to the embodiment shown in the drawing in order to detect the respective pivoting position of the arm 21 and make it clear, for example, on a remote control or display point. In this way, for example, working position ( Fig. 1 ) and open position ( Fig. 2 ).
  • the reference numeral 22 denotes a line which connects the pivot centers of the actuator dome axis 16 and the handlebar pivot axis 18 in a straight line
  • 23 denotes a straight line connecting the pivot centers of the handlebar pivot axis 18 and the axis 20.
  • the letter L denotes the straight line distance between the longitudinal axis of the actuator 5 and the center line extending through the pivot center of the axis 20 and parallel to the center line 24 of the actuator 5 extending center line ( Fig. 1 ).
  • C is the linear distance between the pivot centers of the actuator dome axis 16 and the handlebar pivot axis 18 in dead center or over-center position ( Fig. 1 ).
  • the link assembly 17 is preferably in dead center or fürtot Vietnameselage. If "over-center position" is mentioned, this means that the toggle joint thus formed is approximately up to a degree above the dead center, occurs in the self-locking, so that at pressure medium pressure failure of the piston 4 is not independent in the Fig. 2 apparent Position, ie in open position, can move.
  • the angle ⁇ is also an acute angle.
  • the angle ⁇ is preferably 22.5 ° to 45 °, in the illustrated embodiment 22.5 °, so that the angle ⁇ (FIG. Fig. 2 ) is a sharpener and, for example, also 22.5 ° to 45 °, in the illustrated embodiment also 22.5 °. In this way, over a wide pivoting angle range of the arm 21, a practically constant torque.
  • the handlebar pivot axis 18 is displaced in the working position by the angle ⁇ in the direction of the arm 21, while the entire possible opening angle in this solution is also maintained at 135 ° or can be up to 180 ° in the invention but the whole Angular range ⁇ st rotated in the direction of the arm 21, which has the consequence that in the open position according to Fig. 2 the handlebar pivot axis 18 in the off Fig. 4 has moved apparent lower position in which it assumes the measure Y from the pivot center of the axis 20.
  • the dimension Y is considerably larger than the dimension X. This means that the piston force of the piston 4 at a much larger lever arm when initiating the power stroke Fig. 2 engages in direction A as in the prior art according to Fig. 3 , This results in a favorable leverage and no problems when loosening or starting from the position according to Fig. 2 and pivoting the arm 21 and possibly attached thereto masses.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Actuator (AREA)
  • Transmission Devices (AREA)
  • Fluid-Pressure Circuits (AREA)
EP09012060.1A 2009-02-14 2009-09-23 Unité de rotation pour la construction en carrosserie dans l'industrie automobile pour pivoter des composants lourds Active EP2218549B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE200920002141 DE202009002141U1 (de) 2009-02-14 2009-02-14 Vorrichtung mit einem über ein Stellglied und einer Kniehebelgelenkanordnung durch einen Antrieb in entgegengesetzten Richtungen antreibbaren Hebel, dem eine oder mehrere Massen zugeordnet ist bzw. sind, insbesondere zur Verwendung im Karosseriebau der Kfz-Industrie

Publications (2)

Publication Number Publication Date
EP2218549A1 true EP2218549A1 (fr) 2010-08-18
EP2218549B1 EP2218549B1 (fr) 2013-05-22

Family

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EP09012060.1A Active EP2218549B1 (fr) 2009-02-14 2009-09-23 Unité de rotation pour la construction en carrosserie dans l'industrie automobile pour pivoter des composants lourds

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EP (1) EP2218549B1 (fr)
DE (2) DE202009002141U1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102014104641A1 (de) * 2014-04-02 2015-10-08 Thyssenkrupp Ag Schweißelektrodeneinheit
WO2016055138A1 (fr) * 2014-10-06 2016-04-14 Olaf Und Andre Tünkers Gbr Dispositif de serrage à genouillère, à utiliser en particulier dans le montage de carrosserie dans l'industrie automobile
CN115042118A (zh) * 2022-05-09 2022-09-13 弗思特建筑科技有限公司 一种角度和位置可调的安装机构和装置

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012007020A1 (fr) * 2010-07-14 2012-01-19 Tünkers Maschinenbau Gmbh Dispositif de pivotement pour déplacer en pivotement des masses, à utiliser en particulier dans la construction de carrosseries de l'industrie automobile
CN102079027A (zh) * 2010-11-15 2011-06-01 张琳达 一种新型肘节夹钳
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
CN106737312B (zh) * 2017-04-06 2019-06-25 桂林电子科技大学 一种夹紧装置
CN110774200A (zh) * 2019-12-20 2020-02-11 湖州汇德集团有限公司 一种木板加工定位装置

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DE3022376A1 (de) * 1980-06-14 1981-12-24 De-Sta-Co Metallerzeugnisse Gmbh, 6000 Frankfurt Kniehebelspannvorrichtung
US4921233A (en) 1988-05-06 1990-05-01 Genus International Clamping device for plates or profiled elements placed one against the other
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

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DE3022376A1 (de) * 1980-06-14 1981-12-24 De-Sta-Co Metallerzeugnisse Gmbh, 6000 Frankfurt Kniehebelspannvorrichtung
US4921233A (en) 1988-05-06 1990-05-01 Genus International Clamping device for plates or profiled elements placed one against the other
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

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102014104641A1 (de) * 2014-04-02 2015-10-08 Thyssenkrupp Ag Schweißelektrodeneinheit
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WO2016055138A1 (fr) * 2014-10-06 2016-04-14 Olaf Und Andre Tünkers Gbr Dispositif de serrage à genouillère, à utiliser en particulier dans le montage de carrosserie dans l'industrie automobile
CN115042118A (zh) * 2022-05-09 2022-09-13 弗思特建筑科技有限公司 一种角度和位置可调的安装机构和装置

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Publication number Publication date
EP2218549B1 (fr) 2013-05-22
DE202009002141U1 (de) 2009-04-23
DE202009008068U1 (de) 2009-08-27

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