EP1334803B1 - Dispositif de serrage, notamment étau - Google Patents

Dispositif de serrage, notamment étau Download PDF

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Publication number
EP1334803B1
EP1334803B1 EP03100266A EP03100266A EP1334803B1 EP 1334803 B1 EP1334803 B1 EP 1334803B1 EP 03100266 A EP03100266 A EP 03100266A EP 03100266 A EP03100266 A EP 03100266A EP 1334803 B1 EP1334803 B1 EP 1334803B1
Authority
EP
European Patent Office
Prior art keywords
clamping
dovetail
clamping device
jaw
constructed
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
EP03100266A
Other languages
German (de)
English (en)
Other versions
EP1334803A2 (fr
EP1334803A3 (fr
Inventor
Reiner Hippenstiel
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.)
Hilma-Romheld GmbH
Original Assignee
Hilma-Romheld 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 Hilma-Romheld GmbH filed Critical Hilma-Romheld GmbH
Publication of EP1334803A2 publication Critical patent/EP1334803A2/fr
Publication of EP1334803A3 publication Critical patent/EP1334803A3/fr
Application granted granted Critical
Publication of EP1334803B1 publication Critical patent/EP1334803B1/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

Definitions

  • the invention relates to a clamping device, in particular vise, for clamping a tool or workpiece relative to each other movable holding members, on each of which a jaw by means of a dovetail connection in the insertion wedge-shaped mutually extending side walls releasably attached, with input and Ausschubidesen the dovetail about transverse to Clamping direction of the clamping jaws are formed.
  • Such a tensioning device is from the US 4 191 367 A known.
  • a clamping device commonly used today for clamping tools or workpieces shows the DE 197 56 695 A1 , In these jigs, one of the jaws is fixed to a slide movable in a carriage bed, while the other jaw is formed as a fixed jaw and attached to a fixed holding member. Only with clamping devices for centric clamping both jaws are attached to a respective movable carriage.
  • the clamping jaws are screwed to the holding member, ie on the fixed holding member or the carriage. This type of attachment is expensive. To replace a jaw is always a tool required.
  • the invention is based on the problem, a clamping device, in particular a vise, of the type mentioned in such a way that the jaws do not solve automatically during the machining of a workpiece as a result of shear forces.
  • the clamping device is characterized in that the insertion directions for the clamping jaws are opposite to each other.
  • the dovetail joint are thus formed in opposite directions in their wedge shape.
  • the jaws must be pushed to release in different directions from the retaining organs erhaus. This avoids that the jaws solve automatically during machining of a workpiece due to shear forces.
  • the dovetail of the clamping jaw and a corresponding dovetail groove is assigned to the holding member for the dovetail connection.
  • the holding member may be formed with a compliance, which is preferably arranged below the dovetail groove. This flexibility increases the clamping reliability of the connection. The flexibility can be realized in a simple manner by reducing the material in the retainer.
  • one or more clearances are arranged on the contact surface between the clamping jaw and the associated holding member, which allow by defined bearing surfaces and clearances an elastic deformation of the dovetail joint, which in turn promote the retrieval of the compound.
  • the franking is designed, in particular, as a flat groove running transversely to the clamping direction. It can be seen in the clamping direction behind and / or arranged in front of the dovetail groove and / or in the region of the dovetail groove.
  • the front and / or behind the dovetail groove arranged clearance is preferably arranged in the clamping jaw and arranged in the region of the dovetail slot franking in the holding member.
  • the clamping device shown has a carriage bed 10, in which a carriage 11 is guided longitudinally displaceable.
  • the carriage 11 is actuated by a threaded spindle, which is mounted in a front side screwed to the carriage bed 10 cover 12 and from the in the FIGS. 2 and 3 only the hexagonal head 13 is visible.
  • a holding plate 14 is fixed, namely screwed.
  • This holding plate 14 carries a clamping jaw 15, which is provided with a step-like stepped support surface 16 and a clamping surface 17 arranged perpendicular thereto.
  • Another, analogously designed clamping jaw 18, the also has a stepped support surface 19 and a perpendicular thereto arranged clamping surface 20 is supported by the carriage 11.
  • the type of attachment of the clamping jaws 15, 18 on the support plate 14 and the carriage 11 is achieved here in a special way.
  • the clamping jaws 15, 18 each have a dovetail 21, 22, which are guided in corresponding dovetail grooves 23, 24 in the holding plate 14 and the carriage 11.
  • the jaw 15 and 18 is inserted from the side into the respective associated dovetail groove 23 and 24 (insertion direction).
  • the dovetail connections formed in this way have wedge-shaped side cheeks 25, 26 and 27, 28 in the direction of insertion.
  • the wedge angle of the wedge-shaped tapered side cheeks 25, 26 and 27, 28 is selected so that there is a self-locking clamping of the dovetails 21, 22 in the associated dovetail grooves 23, 24 results.
  • the dovetail connections are oriented transversely to the clamping direction 29.
  • the dovetail connections are formed opposite to each other in their wedge shape. How very good in Fig. 3 can be seen, so seen in the clamping direction 29, the clamping jaw 18 can be pushed out of the carriage 11 to the left, while the clamping jaw 15 is pushed out to the right. Further, the dovetail connection for the fixed jaw 15 is formed so that the seen in the clamping direction outer side cheek 26 is oriented perpendicular to the clamping direction 29.
  • a compliance is selectively mounted below the dovetail groove 23, namely by a material reduction 30.
  • This material reduction 30 is concretely formed by the cutout for the dovetail groove 23 itself.
  • clearances 31, 32, 33 and 34, 35 are provided. These clearances 31..35 are formed as grooves extending transversely to the clamping direction 29 in the contact surfaces between the clamping jaws 15, 18 with the holding plate 14 or the carriage 11. The depth of these postage marks 31..35 is in Fig. 2 exaggerated for clarity.
  • the franking 31 is provided on the fixed clamping jaw 15 in the tensioning direction 29 behind the dovetail 21.
  • the franking 32 is provided below the dovetail groove 23 in the holding plate 14 and the franking 33 is seen in the clamping direction 29 before the dovetail 21 again provided in the clamping jaw 15.
  • the displaceable jaw 18 associated with clearances 34 and 35 are on the one hand as a franking 34 in the carriage 11 provided below the dovetail groove 24 and the other as a clearing 35 in the clamping direction 29 seen behind the dovetail 22 in the jaw 18th
  • the side cheeks 25, 26 are in the side view according to Fig. 2 inclined by about 45 ° outwards, so that they undercut each associated dovetail groove 23 and 24 respectively.
  • the side cheeks 25, 26 may be inclined at a different angle or oriented vertically, so that there is no more undercut.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Jigs For Machine Tools (AREA)
  • Gripping Jigs, Holding Jigs, And Positioning Jigs (AREA)
  • Gripping On Spindles (AREA)
  • Arc Welding In General (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)

Claims (10)

  1. Dispositif de serrage, notamment étau pour le serrage d'un outillage ou d'une pièce à usiner comprenant des organes de blocage mobiles (11, 14) sur lesquels sont adaptés une mâchoire d'arrêt (15, 18) par l'intermédiaire d'une liaison en queue d'aronde (21, 23, 22, 24) avec, dans le sens d'introduction et d'embrochage, des joues latérales cunéiformes (25, 26, 27, 28) en approche angulaire desserrables au sens d'introduction et sens d'extraction des liaisons en queue d'aronde (21, 23, 22, 24) qui sont à peut près disposés transversalement au sens de serrage (29) des mâchoires d'arrêt (18), caractérisé en ce que les sens d'introduction des mâchoires (15, 18) se meuvent à contresens l'une de l'autre.
  2. Dispositif de serrage selon la revendication 1, caractérisé en ce que les joues latérales cunéiformes (25, 26, 28) fonctionnent à contresens l'une de l'autre et sont pourvues d'angles cunéiformes auto-retardateurs.
  3. Dispositif de serrage selon les revendications 1 et 2, caractérisé en ce qu'en particulier à la mâchoire d'arrêt (15), vue dans le sens de serrage (29) de la mâchoire d'arrêt (15), vue du côté extérieur de la joue latérale (26) de la liaison en queue d'aronde (21, 23) se déroulent verticalement par rapport au sens de serrage (29).
  4. Dispositif de serrage selon les revendications 1 à 3, caractérisé en ce qu'une queue d'aronde (21, 23) dans la mâchoire d'arrêt (15, 18) et une rainure correspondante (22, 24) sont agencées dans l'organe de maintien (11, 14) pour la liaison en queue d'aronde,
  5. Dispositif de serrage selon les revendications 1 à 4, caractérisé en ce que l'organe de maintien (11, 14) pourvu spécialement d'une rainure en queue d'aronde (3) est muni d'une élasticité axiale (30).
  6. Dispositif de serrage selon les revendications 1 à 5, caractérisé en ce que l'élasticité axiale (30) est réalisée sous forme d'une réduction du matériau sur l'organe de maintien (14).
  7. Dispositif de serrage selon les revendications 1 à 6, caractérisé en ce que, sur la surface de contact entre les mâchoires d'arrêt (15, 18) et l'organe de maintien correspondant (11, 14), est pratiquée une rainure d'évidement plat passante (31, 32, 33, 34, 35) transversalement au sens de serrage (29).
  8. Dispositif de serrage selon la revendication 7, caractérisé en ce que la rainure d'évidement passante et plate (31, 35) dans le sens de serrage (29) est disposée spécifiquement à l'arrière de la rainure en queue d'aronde (23, 24) à la mâchoire de serrage (15, 18).
  9. Dispositif de serrage selon les revendications 7 ou 8, caractérisé en ce que l'évidement plat traversant (32, 34) dans les parties en queues d'aronde (23, 24) est pratiqué essentiellement dans l'organe de maintien (11, 14).
  10. Dispositif de serrage selon les revendications 7 à 9, caractérisé en ce que l'évidement traversant (33), vu dans le sens de serrage (29), situé devant la rainure en queue d'aronde (23), est pratiqué dans la mâchoire de serrage (15).
EP03100266A 2002-02-11 2003-02-10 Dispositif de serrage, notamment étau Expired - Lifetime EP1334803B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10205601A DE10205601A1 (de) 2002-02-11 2002-02-11 Spannvorrichtung, insbesondere Schraubstock
DE10205601 2002-02-11

Publications (3)

Publication Number Publication Date
EP1334803A2 EP1334803A2 (fr) 2003-08-13
EP1334803A3 EP1334803A3 (fr) 2004-01-28
EP1334803B1 true EP1334803B1 (fr) 2008-08-06

Family

ID=27588529

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03100266A Expired - Lifetime EP1334803B1 (fr) 2002-02-11 2003-02-10 Dispositif de serrage, notamment étau

Country Status (3)

Country Link
EP (1) EP1334803B1 (fr)
AT (1) ATE403525T1 (fr)
DE (2) DE10205601A1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008017911A1 (de) 2008-04-08 2009-10-15 Hilma-Römheld GmbH Spannanordnung für ein Spannelement, insbesondere Schraubstock
DE102008049753B4 (de) * 2008-10-01 2019-12-24 Ludwig Ehrhardt Gmbh Spannvorrichtung zum Spannen von Werkstücken
NL1037092C2 (nl) * 2009-07-02 2011-01-04 Teqq B V Machinaal bewerkingscentrum, grijpinrichting, productmagazijn en spanmiddelen geschikt voor toepassing in een machinaal bewerkingscentrum, en werkwijze voor het ombouwen van een machinaal bewerkingscentrum.
DE102011113765A1 (de) 2011-09-19 2013-03-21 Ludwig Ehrhardt Gmbh Spannvorrichtung mit einem Elektromotor
DE102016010657A1 (de) 2016-09-02 2018-03-08 Ludwig Ehrhardt Gmbh Spannvorrichtung mit einer Sensoranordnung
CN106525574A (zh) * 2016-12-28 2017-03-22 西南铝业（集团）有限责任公司 上钳口及其加工工艺

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE245968C (fr) *
US2490843A (en) * 1946-05-17 1949-12-13 Sordi Ilio Vise-jaw attachment selectively usable as an auxiliary jaw or as a work support between two other vise jaws
US2680395A (en) * 1949-10-29 1954-06-08 Erwood B Christiansen Vise with split adjustable jaws
US3874578A (en) * 1974-04-19 1975-04-01 Prym Inc William Jaw member-die member assembly
US4191367A (en) * 1977-11-16 1980-03-04 Sheterom Samuel G Jr Fluid-operated vise with jaw mounting system
GB2218029A (en) * 1988-01-26 1989-11-08 Stanley Eric Cook Clamps
US5060920A (en) * 1990-12-20 1991-10-29 Eddy Engibarov Quick change jaw assembly for high precision machining

Also Published As

Publication number Publication date
EP1334803A2 (fr) 2003-08-13
DE10205601A1 (de) 2003-08-21
EP1334803A3 (fr) 2004-01-28
ATE403525T1 (de) 2008-08-15
DE50310269D1 (de) 2008-09-18

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