EP0870580B1 - Etau - Google Patents

Etau Download PDF

Info

Publication number
EP0870580B1
EP0870580B1 EP97106055A EP97106055A EP0870580B1 EP 0870580 B1 EP0870580 B1 EP 0870580B1 EP 97106055 A EP97106055 A EP 97106055A EP 97106055 A EP97106055 A EP 97106055A EP 0870580 B1 EP0870580 B1 EP 0870580B1
Authority
EP
European Patent Office
Prior art keywords
rocking lever
clamping device
flat
jaw
clamping
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.)
Expired - Lifetime
Application number
EP97106055A
Other languages
German (de)
English (en)
Other versions
EP0870580A1 (fr
Inventor
Erwin Bohler
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.)
SwissChuck AG
Original Assignee
SwissChuck AG
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 SwissChuck AG filed Critical SwissChuck AG
Priority to EP97106055A priority Critical patent/EP0870580B1/fr
Priority to DE59703056T priority patent/DE59703056D1/de
Priority to US08/921,173 priority patent/US5954320A/en
Priority to TW087105534A priority patent/TW372899B/zh
Priority to KR1019980013045A priority patent/KR19980081347A/ko
Priority to JP10101207A priority patent/JPH10337624A/ja
Publication of EP0870580A1 publication Critical patent/EP0870580A1/fr
Application granted granted Critical
Publication of EP0870580B1 publication Critical patent/EP0870580B1/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
    • B25B1/00—Vices
    • B25B1/24—Details, e.g. jaws of special shape, slideways
    • B25B1/2405—Construction of the jaws
    • B25B1/2478—Construction of the jaws with more than one pair of jaws
    • 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
    • B25B1/00—Vices
    • B25B1/06—Arrangements for positively actuating jaws
    • B25B1/10—Arrangements for positively actuating jaws using screws
    • B25B1/103—Arrangements for positively actuating jaws using screws with one screw perpendicular to the jaw faces, e.g. a differential or telescopic screw

Definitions

  • Such mounts are from German published patent application DE 39 19 560 A1, which shows the features of the preamble of claim 1, and British Patent 730,728. These have a synchronizing device, which by means of one, below one the tensile force between Clamp exercising rod lying, rocker arm with vertical axis a mirror symmetrical movement of the Forces jaws.
  • an axis of the rocker arm is difficult to access, what a simple decommissioning of the synchronization device prevented.
  • the present invention avoids these disadvantages and also allows a compact Construction.
  • the invention is as in the claim 1 defined.
  • a fixed middle jaw also for simultaneous Clamping several, not necessarily identical, workpieces used.
  • the slide 1, 2 denote the left, or right slide, or jaw holder, one Flat clamping bracket.
  • the slide 1, 2 are in a known manner so guided in the body 7 of the flat clamping bracket that they can be pushed back and forth in the clamping direction and the body itself has means (not shown) on with which he is in a certain position on the table attached to a machine tool (also not shown) can be.
  • Each slide has a structure 3, 4 on the one (not shown) usually the one to be held Workpiece-adapted top jaw can be attached can.
  • a cover plate 8 serves as a base for what is to be processed Workpiece and protects the inside of the flat clamping bracket against contamination from processing residues. Their position in relation to the body 7 of the flat clamping bracket can be done in a known, not shown, way by positioning pins or similar means. As described below, the cover plate 8 a third (dashed) middle structure 9 wear if several workpieces in the flat clamping bracket should be clamped in that at least one workpiece between the left and the medium build, and at least one more between the middle and the right structure is recorded.
  • a spindle with an internal thread 10 and a screw 11 engaging therein serve in a known manner To do this, the two sliders, and thus the Bake to press against each other.
  • a pendulum lever 24 effects the movement of the slide provided, the ends of which via beams 23 each on one of two sliders 1, 2 are articulated by the pendulum lever through the joint 25 on the beam 23, and this through the joint 26 each pinned to the corresponding slide are.
  • the pendulum lever surrounds 24 the spindle 10 with enough room for one Swivel according to the maximum jaw stroke to be able to.
  • the pendulum lever swings one Axis through the body 7 inserted on both sides, and in a central bore 20 of the pendulum lever engaging socket pin 22 is formed. It is without further apparent that the slide 1, 2 then mirror-symmetrical to a perpendicular to the spindle axis and going through the common axis of the socket pin 22 Level. As mentioned at the beginning, this can given tolerances of both those to be machined Workpieces such as the combination of flat clamping brackets and machine tools achieve higher precision become.
  • one (dashed) immovable middle structure 9 can be an exactly symmetrical movement the slide relative to the body of the Flat clamping bracket resting transverse plane undesirable be and / or lead to mechanical over-determination.
  • a firm middle structure and on both sides of it can be mechanical Determination e.g. then occur when the in Length dimension of the spindle seen on both sides the work piece is not clamped in the center jaw identical, but only within certain tolerances are the same.
  • the socket pins 22 removed and thus the pendulum lever 24 are released, so that he’s no longer a Body 7 must rotate the fixed central axis.
  • the socket pins 22 are preferably shorter Plug pin 21, which replaced the corresponding holes close in the body 7 without in the bore 20 of the To engage the pendulum lever.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Jigs For Machine Tools (AREA)

Claims (4)

  1. Etau plat avec deux porte-mors entraínés pour immobiliser par serrage au moins une pièce à usiner sur une machine outil, avec un dispositif d'accouplement mécanique (22-26) des mors indépendant des moyens produisant la force de serrage et comprenant un levier pivotant (24) autour d'un axe perpendiculaire à la force de serrage, chaque extrémité de ce levier étant reliée à un porte-mors (3, 4) deplaçable dans la direction de la force de serrage de façon à ce que les porte-mors se meuvent symétriquement par rapport à un plan fixe relativement au corps de l'étau, caractérisé en ce que la force de serrage est produite par une broche (10) traversant le levier pivotant (24).
  2. Etau plat selon la revendication 1, caractérisé en ce qu'une pièce (23) faisant fonction de bielle est insérée entre chaque extrémité du levier pivotant et le porte-mors correspondant, cette pièce étant réunie de façon articulée avec ce levier (24) ainsi qu'avec ce porte-mors.
  3. Etau plat selon la revendication 2, caractérisé en ce que l'axe du levier pivotant (24) est essentiellement parallèle à la base du corps (7) de l'étau.
  4. Etau plat selon la revendication 3, caractérisé e3n ce que l'axe du levier pivotant (24) est formé par deux goupilles débrochables (22) engagées de deux cotés opposés dans le corps (7) de l'étau.
EP97106055A 1997-04-13 1997-04-13 Etau Expired - Lifetime EP0870580B1 (fr)

Priority Applications (6)

Application Number Priority Date Filing Date Title
EP97106055A EP0870580B1 (fr) 1997-04-13 1997-04-13 Etau
DE59703056T DE59703056D1 (de) 1997-04-13 1997-04-13 Spannstock
US08/921,173 US5954320A (en) 1997-04-13 1997-08-29 Clamping device for a machine tool
TW087105534A TW372899B (en) 1997-04-13 1998-04-13 Clamping device for a machine tool
KR1019980013045A KR19980081347A (ko) 1997-04-13 1998-04-13 기계 공구용 클램핑 장치
JP10101207A JPH10337624A (ja) 1997-04-13 1998-04-13 工作機械用クランプ装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP97106055A EP0870580B1 (fr) 1997-04-13 1997-04-13 Etau

Publications (2)

Publication Number Publication Date
EP0870580A1 EP0870580A1 (fr) 1998-10-14
EP0870580B1 true EP0870580B1 (fr) 2001-02-28

Family

ID=8226689

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97106055A Expired - Lifetime EP0870580B1 (fr) 1997-04-13 1997-04-13 Etau

Country Status (6)

Country Link
US (1) US5954320A (fr)
EP (1) EP0870580B1 (fr)
JP (1) JPH10337624A (fr)
KR (1) KR19980081347A (fr)
DE (1) DE59703056D1 (fr)
TW (1) TW372899B (fr)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6079704A (en) * 1998-09-08 2000-06-27 Buck; James R. Timing device for workholding apparatus
US6095507A (en) * 1999-01-22 2000-08-01 Unova Ip Corp. Pneumatic clamp
US6428071B2 (en) * 2000-03-27 2002-08-06 Millo Bertini Gripper with enhanced opening range
DE202004019369U1 (de) * 2004-12-15 2006-04-20 Staudinger Forschungs- Und Entwicklungs Gmbh & Co. Kg Spannvorrichtung
JP2008264983A (ja) * 2007-04-25 2008-11-06 Nabeya Iron & Tool Works Ltd ５軸加工機用マシンバイス
US8459659B2 (en) * 2007-12-19 2013-06-11 Illinois Tool Works Inc. Hybrid lathe chuck
US8596622B2 (en) * 2009-10-16 2013-12-03 Laitram, L.L.C. Rapid-release belt splicer and method of operation
US9283658B2 (en) * 2013-05-01 2016-03-15 Melvyn James Marple Self-centering clamp
JP2015199178A (ja) * 2014-04-10 2015-11-12 株式会社サンテック 工作機械における芯出し振れ止め装置
US9796135B2 (en) 2015-08-13 2017-10-24 Laitram, L.L.C. Belt splicer
DE102016224517A1 (de) * 2016-12-08 2018-06-14 Lang Technik Gmbh Prägestation
CN109193264B (zh) * 2018-09-25 2020-03-17 林浩 一种旋钮式变电设备接头发热带电处理装置

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB730728A (en) * 1952-11-08 1955-05-25 Gaston E Marbaix Ltd Self-centering clamp
US2757391A (en) * 1953-02-04 1956-08-07 Landis Machine Co Parallel link system for actuating work gripping jaws
US3643937A (en) * 1969-07-31 1972-02-22 Edwin Russ Precision vise
US3899162A (en) * 1974-09-27 1975-08-12 Hugo J Fischer Multi-load self-centering work holding vise
JPS5828444A (ja) * 1981-08-11 1983-02-19 Toyoda Autom Loom Works Ltd クランプ機構
CH675701A5 (fr) * 1988-06-17 1990-10-31 Ernst Spengler

Also Published As

Publication number Publication date
KR19980081347A (ko) 1998-11-25
JPH10337624A (ja) 1998-12-22
US5954320A (en) 1999-09-21
DE59703056D1 (de) 2001-04-05
TW372899B (en) 1999-11-01
EP0870580A1 (fr) 1998-10-14

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