EP0615817A1 - Spannvorrichtung, insbesondere um metallische Bleche oder Profile gegeneinander zu klemmen - Google Patents

Spannvorrichtung, insbesondere um metallische Bleche oder Profile gegeneinander zu klemmen Download PDF

Info

Publication number
EP0615817A1
EP0615817A1 EP94400540A EP94400540A EP0615817A1 EP 0615817 A1 EP0615817 A1 EP 0615817A1 EP 94400540 A EP94400540 A EP 94400540A EP 94400540 A EP94400540 A EP 94400540A EP 0615817 A1 EP0615817 A1 EP 0615817A1
Authority
EP
European Patent Office
Prior art keywords
arc
jack
angle
movement
groove
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Withdrawn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
EP94400540A
Other languages
English (en)
French (fr)
Inventor
Louis Algans
Diego D'orazio
Fabrice Roudier
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.)
Genus Technologie Industrielle (gti) Sa
Original Assignee
Genus Technologie Industrielle (gti) Sa
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 Genus Technologie Industrielle (gti) Sa filed Critical Genus Technologie Industrielle (gti) Sa
Publication of EP0615817A1 publication Critical patent/EP0615817A1/de
Withdrawn legal-status Critical Current

Links

Images

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
    • B25B5/08—Arrangements for positively actuating jaws using cams
    • B25B5/087—Arrangements for positively actuating jaws using cams actuated by a hydraulic or pneumatic piston

Definitions

  • the invention is particularly useful for the assembly and automated welding of automobile bodies, a process in which collets apply body sheets against each other during welding.
  • Known clamping devices generally comprise a housing separable into two parts, on which is mounted at one end an actuating means in translation such as a pneumatic cylinder for actuating a mechanical coupling, said mechanical coupling successively comprising a carriage and a connecting rod to move a lever secured to a clamping arm.
  • actuating means in translation such as a pneumatic cylinder for actuating a mechanical coupling, said mechanical coupling successively comprising a carriage and a connecting rod to move a lever secured to a clamping arm.
  • the pneumatic cylinders used in these clamping devices are equipped with flow limiters, so as to obtain a substantially constant speed of movement of the cylinder, and damping systems intended to prevent any sudden impact at the end of the cylinder stroke.
  • a connecting rod 5 is coupled to the axis 3 so as to move under the thrust of the jack.
  • the connecting rod 5 has at one end 5a a bore corresponding to the axis 3 and at the other end 5b a bore corresponding to a guide axis 6.
  • the connecting rod 5 imposes in its movement a movement on a connecting rod 12 also articulated in rotation around the axis 6 at one end 12a, while the other end 12b of the connecting rod 12 and articulated in rotation around an integral axis 13 a clamping arm 14.
  • the clamping arm 14 is mounted on an axis 15 integral with the housing 1, so as to pivot in the direction of the arrow R around the axis 15 under the action of the cylinder rod 2 acting on the coupling of the connecting rod 5 and the connecting rod 12.
  • the angle between the connecting rod 5 and the connecting rod 12 must always remain less than 90 °, so as to obtain a constant clamping force and to avoid any bracing effect.
  • the thrust of the jack in the direction of arrow A causes the advancement of the axis 3 in the groove 4 by an incrementable distance a and the progression of the roller 7 according to the rising arc 9 of trajectory which forms an angle with the direction of movement A.
  • the rotation R of the arm 14 around the axis 15, which corresponds to the advance of the roller 7 is low and between 9 and 12 degrees of angle. It can also be seen that the start of the movement was carried out without shock or sudden jolt, even when using a cylinder devoid of damping system or speed limiter.
  • the rod of the jack 2 and the axis 3 have progressed by an additional increment a in the direction of the arrow A, so that the center of the roller 7 has slightly exceeded the top 10 of trajectory of the groove 8 and is at the start of the second arc 11 and so that the arm 14 has rotated by an additional angle between 10 and 13 degrees of angle.
  • the rod of the jack 2 and the axis 3 have progressed by an additional increment a in the direction of the arrow A, so that the center of the roller 7 is substantially in the middle of the trajectory arc 11 and so that the arm 14 has rotated by an additional angle between 25 and 30 degrees of angle.
  • the center of the roller 7 is located at the start of the shaped ramp corresponding to the contact of the arm 15 with sheets not shown.
  • the rotation of the arm 15 between Figures 7 and 8 is between 5 and 8 degrees of angle, which corresponds to an apparent deceleration compared to the previous phase.
  • the use of the ramp of known shape to avoid bracing thus leads to an additional deceleration and to a "soft landing" on the sheets to be clamped.
  • Figure 10 corresponds to a clamping position corresponding to the maximum allowable wear of the device: between Figure 8 and Figure 10, the cylinder rod 2 and the axis 3 have advanced by a distance t corresponding to the total stroke tightening the device; the roller 7 is in abutment on the end of the groove 8 and the clamping arm 14 has rotated by an additional angle relative to FIG. 8, of value less than 4 degrees of angle.
  • the rising arc 9 has a straight end 9a which forms with the direction of movement A an angle 16 of between 45 ° and 60 ° and an end 9b in the form of an arc of a circle corresponding to the roller 7.
  • the descending arc 11 comprises, from the apex 10, a circular arc 11a has the same curvature as the circular arc 9b, then a rectilinear segment 11 b forming with the direction of movement A an angle 17 less than 30 ° , then a second rectilinear segment 11 c making with the direction of movement an angle 18 less than 10 degrees.
  • the invention covers in particular devices of the kind comprising a pivoting, articulated or similar connection between an actuator of any kind (cable, electric motor, mechanical jack driving a ball screw, etc.) in place of a connection fixed of the particular embodiment described above.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manipulator (AREA)
  • Actuator (AREA)
EP94400540A 1993-03-16 1994-03-14 Spannvorrichtung, insbesondere um metallische Bleche oder Profile gegeneinander zu klemmen Withdrawn EP0615817A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9302989A FR2702804B1 (fr) 1993-03-16 1993-03-16 Dispositif de serrage, notamment pour l'application de tôles ou profilés métalliques l'un contre l'autre.
FR9302989 1993-03-16

Publications (1)

Publication Number Publication Date
EP0615817A1 true EP0615817A1 (de) 1994-09-21

Family

ID=9444988

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94400540A Withdrawn EP0615817A1 (de) 1993-03-16 1994-03-14 Spannvorrichtung, insbesondere um metallische Bleche oder Profile gegeneinander zu klemmen

Country Status (2)

Country Link
EP (1) EP0615817A1 (de)
FR (1) FR2702804B1 (de)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2754484A1 (fr) * 1996-10-15 1998-04-17 Robotic Perfectionnement pour dispositif de serrage du type comprenant un levier actionne par un piston
GB2359512A (en) * 1999-11-26 2001-08-29 Hmc Brauer Ltd A power clamp
DE10138786C1 (de) * 2001-08-07 2002-10-31 Benteler Automobiltechnik Gmbh Vorrichtung zur Lagefixierung eines Werkstücks an einer Werkstückaufnahme
US6666489B2 (en) * 2001-08-23 2003-12-23 Btm Corporation Sealed gripper apparatus
DE10242058A1 (de) * 2002-09-11 2004-04-01 Nothelfer Gmbh Kniehebelspannvorrichtung
EP1249312A3 (de) * 2001-04-13 2005-03-30 DE-STA-CO Metallerzeugnisse GmbH Schubstangenspanner
US8256755B2 (en) 2008-01-22 2012-09-04 Smc Kabushiki Kaisha Clamp apparatus
CN102773647A (zh) * 2012-08-14 2012-11-14 安徽巨一自动化装备有限公司 四连杆定位销机构
CN102785047A (zh) * 2012-08-14 2012-11-21 安徽巨一自动化装备有限公司 一种定位销机构
CN104493747A (zh) * 2014-11-28 2015-04-08 苏州晟成光伏设备有限公司 组装机边框定位气爪
EP3505299A4 (de) * 2017-09-28 2020-03-18 Energium Co., Ltd. Elektrisch betriebene spannvorrichtung

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4859134B2 (ja) * 2007-06-26 2012-01-25 キャタピラージャパン株式会社 クランプ装置

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2162133A (en) * 1936-03-19 1939-06-13 Thompson Prod Inc Hydraulic force-multiplying machine
US3482830A (en) * 1966-04-05 1969-12-09 Jack J Sendoykas Clamp
US3807719A (en) * 1972-01-06 1974-04-30 R Williamson Clamp
US4396183A (en) * 1982-05-10 1983-08-02 Lymburner Robert K Power actuated clamp
FR2630953A1 (fr) * 1988-05-06 1989-11-10 Genus Int Dispositif de bridage pour plaques ou profiles l'un contre l'autre
EP0596808A1 (de) * 1992-11-05 1994-05-11 Martin Breiter Spannkopf

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2162133A (en) * 1936-03-19 1939-06-13 Thompson Prod Inc Hydraulic force-multiplying machine
US3482830A (en) * 1966-04-05 1969-12-09 Jack J Sendoykas Clamp
US3807719A (en) * 1972-01-06 1974-04-30 R Williamson Clamp
US4396183A (en) * 1982-05-10 1983-08-02 Lymburner Robert K Power actuated clamp
FR2630953A1 (fr) * 1988-05-06 1989-11-10 Genus Int Dispositif de bridage pour plaques ou profiles l'un contre l'autre
EP0596808A1 (de) * 1992-11-05 1994-05-11 Martin Breiter Spannkopf

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0836912A1 (de) * 1996-10-15 1998-04-22 Robotic Spannvorrichtung mit einem durch einen Kolben angetriebenen Hebel
FR2754484A1 (fr) * 1996-10-15 1998-04-17 Robotic Perfectionnement pour dispositif de serrage du type comprenant un levier actionne par un piston
GB2359512A (en) * 1999-11-26 2001-08-29 Hmc Brauer Ltd A power clamp
GB2359512B (en) * 1999-11-26 2004-01-21 Hmc Brauer Ltd Power clamps
EP1249312A3 (de) * 2001-04-13 2005-03-30 DE-STA-CO Metallerzeugnisse GmbH Schubstangenspanner
DE10138786C1 (de) * 2001-08-07 2002-10-31 Benteler Automobiltechnik Gmbh Vorrichtung zur Lagefixierung eines Werkstücks an einer Werkstückaufnahme
US6666489B2 (en) * 2001-08-23 2003-12-23 Btm Corporation Sealed gripper apparatus
DE10242058A1 (de) * 2002-09-11 2004-04-01 Nothelfer Gmbh Kniehebelspannvorrichtung
DE10242058B4 (de) * 2002-09-11 2006-01-05 Nothelfer Gmbh Kniehebelspannvorrichtung
US8256755B2 (en) 2008-01-22 2012-09-04 Smc Kabushiki Kaisha Clamp apparatus
CN102773647A (zh) * 2012-08-14 2012-11-14 安徽巨一自动化装备有限公司 四连杆定位销机构
CN102785047A (zh) * 2012-08-14 2012-11-21 安徽巨一自动化装备有限公司 一种定位销机构
CN102773647B (zh) * 2012-08-14 2014-09-10 安徽巨一自动化装备有限公司 四连杆定位销机构
CN104493747A (zh) * 2014-11-28 2015-04-08 苏州晟成光伏设备有限公司 组装机边框定位气爪
EP3505299A4 (de) * 2017-09-28 2020-03-18 Energium Co., Ltd. Elektrisch betriebene spannvorrichtung

Also Published As

Publication number Publication date
FR2702804B1 (fr) 1995-05-19
FR2702804A1 (fr) 1994-09-23

Similar Documents

Publication Publication Date Title
EP0615817A1 (de) Spannvorrichtung, insbesondere um metallische Bleche oder Profile gegeneinander zu klemmen
FR2677414A1 (fr) Moteur equipe d'un mecanisme reducteur a vis.
WO2004018181A1 (fr) Dispositif de moulage, par soufflage ou etirage­ soufflage, de recipients en materiau thermoplastique
EP1465754A1 (de) Stiftförmiges werkzeug zum zentrieren und spannen
EP0751260A1 (de) Schervorrichtung, besonders zum Schneiden von Metallen oder Beton
FR2564220A1 (fr) Dispositif de commande, notamment dispositif de commande d'embrayage pour vehicules automobiles
EP0664859B1 (de) Bremsmotor mit geringen abmessungen
FR2732404A1 (fr) Moteur a piston pivotant actionne par un fluide
EP0032645A1 (de) Universaler Spanner für Ketten- und Riemgetriebe
EP0489813B1 (de) Scheibenwischersystem mit ferngesteuerter berührungskraftregelung
FR2822782A1 (fr) Dispositif de serrage d'une colonne de direction de vehicule automobile
FR2581341A1 (fr) Procede et dispositif de tronconnage de tubes
FR2673459A1 (fr) Dispositif d'arret rapide pour arme automatique a entrainement exterieur.
FR2639569A1 (fr) Tete de bridage a rattrapage de jeux
WO1996018475A1 (fr) Dispositif de façonnage de tubes
CA1157415A (fr) Mecanisme de butee a amortissement, notamment pour machine a ecrire
EP0504003A1 (de) Zentralpunktrückstellvorrichtung
EP1055490B1 (de) Schwenkbare Tragvorrichtung zum Stützen einer Last
FR2672859A1 (fr) Installation d'essuie-glace pour vehicule automobile.
FR2721388A1 (fr) Procédé et système pour freiner le mouvement d'une pièce armée par un ressort et animée d'un mouvement pivotant alternatif.
EP0027408A1 (de) Fliehkraftauslösevorrichtung
EP0383369B1 (de) Anordnung bestehend aus einer Drehklappe und einem Antriebsorgan, verbunden durch ein Hebelgestänge
FR2828230A1 (fr) Charniere, notamment pour panneau pivotant
FR2643957A1 (fr) Transmission de mouvement a arret d'urgence
FR2675225A1 (fr) Variateur de vitesse a courroie trapezouidale.

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): DE ES FR GB IT

K1C1 Correction of patent application (title page) published

Effective date: 19940921

17P Request for examination filed

Effective date: 19950217

17Q First examination report despatched

Effective date: 19960205

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 19961022