EP0803330B1 - Machoire profilée de serrage - Google Patents

Machoire profilée de serrage Download PDF

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Publication number
EP0803330B1
EP0803330B1 EP97103224A EP97103224A EP0803330B1 EP 0803330 B1 EP0803330 B1 EP 0803330B1 EP 97103224 A EP97103224 A EP 97103224A EP 97103224 A EP97103224 A EP 97103224A EP 0803330 B1 EP0803330 B1 EP 0803330B1
Authority
EP
European Patent Office
Prior art keywords
clamping
clamping jaw
pressure plate
main body
profiled
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
EP97103224A
Other languages
German (de)
English (en)
Other versions
EP0803330A1 (fr
Inventor
Helmfried Bergmann
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.)
S and B Technologie Schaetzle and Bergmann & Co GmbH
Original Assignee
SCHAETZLE HOLDING GmbH
Schatzle Holding 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 SCHAETZLE HOLDING GmbH, Schatzle Holding GmbH filed Critical SCHAETZLE HOLDING GmbH
Publication of EP0803330A1 publication Critical patent/EP0803330A1/fr
Application granted granted Critical
Publication of EP0803330B1 publication Critical patent/EP0803330B1/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
    • B25B1/241—Construction of the jaws characterised by surface features or material
    • B25B1/2415—Construction of the jaws characterised by surface features or material being composed of a plurality of parts adapting to the shape of the workpiece
    • B25B1/2421—Construction of the jaws characterised by surface features or material being composed of a plurality of parts adapting to the shape of the workpiece the parts having a linear movement

Definitions

  • the invention relates to a mold jaw after Preamble of claim 1.
  • Clamping jaws are part of clamping devices such as these for example in vices, machine tools or Machining centers needed to hold workpieces become.
  • An example application is the clamping of Turbine blades used to machine the end sections in the middle must be clamped. Because turbine blades are one have irregular shape and multiple blade shapes and - sizes should be machinable in a clamping device, the jaws of the bucket shape must automatically to adjust. Furthermore, it must be ensured that the turbine blade even with high machining forces acting on them be kept safe.
  • each shut-off valve is assigned a shut-off valve, through which the fluid connection to the Tappet moving forward hydraulic distributor is lockable.
  • the shut-off valves each have one Control piston on, via a second hydraulic distributor pressurized and thereby in its locked position is held.
  • each tappet a separate shut-off valve assigning arrangement is, however, the necessary for this complicated structure of the basic body. It is a multitude Shut-off valves to be machined with high precision, which at Damage caused by extensive disassembly of the base body need to be replaced. Furthermore, the control of the Hydraulic oil supply to the individual distribution rooms complicated, because a multi-step, coordinated Order must be adhered to.
  • the object of the invention is therefore the construction of a generic Simplify mold clamping jaws and clamping Workpieces with any circumferential contour in a simpler way and reliable way to ensure.
  • sealing medium for reliable sealing of the tappet cylinder provided so that saved the O-rings used in the prior art and no matching sealing surfaces can be produced have to.
  • the sealing medium is expediently a sealing paste or the like applied to the printing plate.
  • the pressure plate is preferably in a base body trained bag arranged so that the membrane without elaborate curve guides on the back of the pressure plate and the base body can be arranged.
  • Conveniently is the membrane over a for example Screw fixed lid held on the base body.
  • This Design is simplified by the bag, which is a flat Creates contact surface for the lid and the membrane.
  • hydraulic lines for the are in the cover Supply of hydraulic fluid to the pressure plate opposite side of the membrane over which the Pressure plate can be pressurized. It is enough here that the hydraulic lines with in the lid trained grooves are connected, the open sides point to the membrane and through which the hydraulic fluid is fed to the membrane. A the membrane completely covering pressure area is not required.
  • a Replacing the plunger can be done without removing the Cover, the membrane and the pressure plate are made by the Tension ram on the opposite side from the main body is removed. For this is only the circlip to release and the bushing with the clamping plunger from the plunger cylinder to take out.
  • the rams on a film or the like covered This will damage the workpiece surface also avoided at high clamping pressures, since the Protective film that is applied selectively over the tension plunger Pressure distributes and dampens.
  • the film is on the side each held in a film holder that swivels is stored and preferably in three degrees of freedom is mobile.
  • the film can also do this adapt flexibly to the uneven workpiece surface, see above that damage is avoided.
  • the mold jaws 1 shown in the drawing exist essentially from a base body 2, in which a variety from 2 open tappet cylinders to one side of the base body 3 is formed.
  • each ram cylinder 3 there is one Tension ram 4 (in the drawing is only one example Tappet 4 shown) arranged in the ram cylinder 3 via a piston section 5 and a bushing 6 is slidably supported.
  • the socket 6 is from the front in the Ram cylinder 3 is inserted and is via a locking ring 7 held.
  • the bushing 6 is opposite the ram cylinder 3 and the plunger 4 sealed via O-rings 8 and 9 respectively.
  • Pressure supply opening 10 formed in one in the Base body 2 formed pocket 11 opens into which pressure oil can be introduced via a first hydraulic line 12.
  • the pressure plate 13 In the pocket 11 of the base body 2 there is also a pressure plate 13 arranged, the springs 14 on the Base body 2 supports.
  • the pressure plate 13 is loose in the Pocket 11 inserted without being guided laterally.
  • a membrane 15 is arranged, which over a cover 16, the is fastened to the base body 2 with screws 17 becomes.
  • Second hydraulic line 18 connected to the hydraulic pressure source provided that opens into grooves 19 which in the membrane facing side of the cover 16 are formed.
  • the Grooves 19 are arranged such that they are essentially the section of the pressure plate 13 Detect membrane 15.
  • the function of the mold clamping jaw shown in the drawing 1 is the following:
  • the plungers 4 are covered by a protective film 21.
  • the Protective film 21 must absorb very large forces and expansions, so that this is an elastic, highly resistant Plastic material is provided. To ensure, that the protective film when extending the ram 4 to the can adjust uneven workpiece surface contour the protective film 21 at its ends via a terminal block 23 in clamped a film holder 22 which is articulated and is movable in three degrees of freedom.
  • the film holder 22 is on one in the base body 2 pivoting body pivotally mounted about a first pivot axis A. 24 attached.
  • the swivel body 24 is supported against a spring pin 26 biased against a spring 25 Base body 2, so that the protective film 21 is always stretched remains.
  • the film holder 22 is also opposite the swivel body 24 via an axially displaceably mounted therein Guide rod 27 axially displaceable.
  • the film holder 22 can be pivoted about a second pivot axis B.
  • optimal mobility of the protective film 21 is ensured, posed depending on the movement of the Tappet 4 can adjust the workpiece surface contour.
  • the film holder 22 can be removed from the swivel body 24 are unhooked, so that the plunger 4 of the Underside of the base body 2 are freely accessible.
  • the socket 6 with the Tension plunger 4 simply out of the plunger cylinder 3 can be pulled out and replaced. Dismantling the Cover 16 is therefore not for maintenance of the ram 4 required.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Jigs For Machine Tools (AREA)
  • Mounting, Exchange, And Manufacturing Of Dies (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Thermotherapy And Cooling Therapy Devices (AREA)
  • Braking Arrangements (AREA)

Claims (12)

  1. Mâchoires de serrage adaptables aux formes pour un dispositif de serrage destiné au serrage périphérique de pièces à usiner ayant un contour circonférentiel quelconque, avec un corps de base (2) et avec une surface de serrage disposée sur le corps de base (2) qui est constituée d'une multitude de coulisseaux de serrage (4) pouvant être déplacés indépendamment les uns des autres dans le corps de base (2) et pouvant être bloqués dans leur position de serrage, les coulisseaux de serrage (4) étant guidés chacun dans un cylindre de coulisseau (3) du corps de base (2) et pouvant être déplacés dans le sens du serrage sous l'action d'un fluide hydraulique, les coulisseau de serrage (4) pouvant être bloqués dans leur position de serrage en verrouillant les cylindres de coulisseau (3) à l'aide d'une plaque de pression (13), caractérisées en ce que la plaque de pression (13) s'appuie par le biais de ressorts (14) sur le corps de base (2) et en ce que du côté de la plaque de pression (13) opposé au corps de base (2), il est prévu une membrane (15) à l'aide de laquelle la plaque de pression (13) peut être actionnée par un fluide hydraulique et déplacée contre l'effet des ressorts (14).
  2. Mâchoires de serrage adaptables aux formes selon la revendication 1, caractérisées en ce que tous les cylindres de coulisseau (3) peuvent être verrouillés au moyen d'une plaque de pression (13) commune.
  3. Mâchoires de serrage adaptables aux formes selon la revendication 1 ou 2, caractérisées en ce qu'un produit d'étanchéité est prévu du côté de la plaque de pression (13) dirigé vers le corps de base (2) pour rendre étanche de façon fiable les cylindres de coulisseau (3).
  4. Mâchoires de serrage adaptables aux formes selon la revendication 3, caractérisées en ce que le produit d'étanchéité est une pâte d'étanchéité ou un équivalent.
  5. Mâchoires de serrage adaptables aux formes selon l'une des revendications 1 à 4, caractérisées en ce que la plaque de pression (13) est placée dans une cavité (11) formée dans le corps de base (2).
  6. Mâchoires de serrage adaptables aux formes selon l'une des revendications 1 à 5, caractérisées en ce que la membrane (15) est maintenue sur le corps de base (2) par un couvercle (16) fixé par exemple au moyen de vis (17).
  7. Mâchoires de serrage adaptables aux formes selon la revendication 6, caractérisées en ce que des conduites hydrauliques (18) sont formées dans le couvercle (16) pour alimenter en liquide hydraulique la face de la membrane (15) dirigée vers la plaque de pression (13).
  8. Mâchoires de serrage adaptables aux formes selon la revendication 7, caractérisées en ce que la conduite hydraulique (18) est en contact avec des gorges (19) formées dans le couvercle (16) et ouvertes en direction de la membrane (15).
  9. Mâchoires de serrage adaptables aux formes selon l'une des revendications 1 à 8, caractérisées en ce que les coulisseaux de serrage (4) peuvent être introduits dans les cylindres de coulisseau (3) du côté du corps de base (2) opposé à la plaque de pression (13) et peuvent être placés de façon à pouvoir coulisser dans un manchon (6) qui est fixé dans le cylindre de coulisseau (3) par exemple à l'aide d'une rondelle de sécurité (7).
  10. Mâchoires de serrage adaptables aux formes selon l'une des revendications 1 à 9, caractérisées en ce que les coulisseaux de serrage (4) sont recouverts d'un film (21) ou d'un équivalent.
  11. Mâchoires de serrage adaptables aux formes selon la revendication 10, caractérisées en ce que le film (21) est maintenu de chaque côté dans un support de film (22) monté de façon à pouvoir pivoter.
  12. Mâchoires de serrage adaptables aux formes selon la revendication 11, caractérisées en ce que le support de film (22) peut se déplacer selon trois degrés de liberté.
EP97103224A 1996-04-19 1997-02-27 Machoire profilée de serrage Expired - Lifetime EP0803330B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19615634 1996-04-19
DE19615634A DE19615634C1 (de) 1996-04-19 1996-04-19 Formspannbacken

Publications (2)

Publication Number Publication Date
EP0803330A1 EP0803330A1 (fr) 1997-10-29
EP0803330B1 true EP0803330B1 (fr) 2000-07-19

Family

ID=7791847

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97103224A Expired - Lifetime EP0803330B1 (fr) 1996-04-19 1997-02-27 Machoire profilée de serrage

Country Status (3)

Country Link
EP (1) EP0803330B1 (fr)
AT (1) ATE194789T1 (fr)
DE (2) DE19615634C1 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19752783A1 (de) * 1997-11-28 1999-06-02 Bayerische Motoren Werke Ag Vorrichtung zum Spannen eines insbesondere Freiformflächen aufweisenden Werkstücks
DE10055591A1 (de) * 2000-11-09 2002-05-23 Voith Paper Patent Gmbh Klemmvorrichtung
DE10334671B4 (de) * 2003-07-30 2005-10-20 Theodor Graebener Gmbh & Co Kg Zylindereinheit zur Anbringung an einer Traverse und/oder einem Tisch einer Vorrichtung oder Maschine zum Umformen von Werkstücken
CN108262627B (zh) * 2017-01-04 2023-10-10 江苏海盛汽车零部件科技有限公司 一种用于夹持铝棒的夹具
CN115647875A (zh) * 2022-10-09 2023-01-31 北京航天华世科技股份有限公司 钻床用异形零部件加工装置
CN116619089A (zh) * 2023-07-03 2023-08-22 昆山佩鑫智能科技有限公司 一种用于金属加工的夹制具及其夹制方法
CN119159036A (zh) * 2024-11-21 2024-12-20 陕西华威科技股份有限公司 一种热锻件夹送装置

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE257815C (fr) *
DE423180C (de) * 1924-11-23 1925-12-22 Anton Thiel Vorrichtung zum Messen von Beinverkuerzungen
US2340316A (en) * 1941-11-03 1944-02-01 Herman P Fest Elastic attachment for vise jaws
US2399824A (en) * 1943-08-09 1946-05-07 Irving L Pressman Adjustable jig and holder
DE871280C (de) * 1945-10-15 1953-03-23 Ernst Flueck Schraubstock mit gegeneinander kippbaren oder in mehrere Spannfinger aufgeteilten Backen
SE393317B (sv) * 1975-09-25 1977-05-09 Westin & Backlund Ab Anordning for att stoda och/eller fastspenna kroppar med oregelbunden form
FR2535830B1 (fr) * 1982-11-10 1986-06-13 Trefilunion Dispositif de positionnement d'elements sur un plateau pour la fabrication de palettes de manutention
DE9218907U1 (de) * 1992-01-25 1996-02-15 Götz GmbH Metall- und Anlagenbau, 97084 Würzburg Formspannbacken zum Einspannen von Werkstücken
DE9204691U1 (de) * 1992-02-12 1992-06-17 Schrade GmbH, 7143 Vaihingen Einspannvorrichtung für Gegenstände mit unebener Oberfläche
DE4213490C1 (de) * 1992-04-24 1993-09-30 Deutsche Aerospace Airbus Zusammengesetzter Formkörper einer Vorrichtung zum Streckziehen eines sphärisch gekrümmten Bleches
DE4311110A1 (de) * 1993-04-05 1994-10-06 Goetz Metall Anlagen Formspannbacken für eine Spannvorrichtung
GB2278825A (en) * 1993-06-12 1994-12-14 Rolls Royce Plc Gripper.

Also Published As

Publication number Publication date
ATE194789T1 (de) 2000-08-15
EP0803330A1 (fr) 1997-10-29
DE19615634C1 (de) 1997-09-25
DE59702043D1 (de) 2000-08-24

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