EP0919729A2 - Vérin avec tige de piston guidé sans rotation - Google Patents

Vérin avec tige de piston guidé sans rotation Download PDF

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Publication number
EP0919729A2
EP0919729A2 EP98117095A EP98117095A EP0919729A2 EP 0919729 A2 EP0919729 A2 EP 0919729A2 EP 98117095 A EP98117095 A EP 98117095A EP 98117095 A EP98117095 A EP 98117095A EP 0919729 A2 EP0919729 A2 EP 0919729A2
Authority
EP
European Patent Office
Prior art keywords
piston rod
piston
block cylinder
guide bush
cylinder according
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Withdrawn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
EP98117095A
Other languages
German (de)
English (en)
Other versions
EP0919729A3 (fr
Inventor
Fritz Kitchner
Silke Kirchner
Adolf Lehr
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.)
A Roemheld GmbH and Co KG
Original Assignee
A Roemheld GmbH and Co KG
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 A Roemheld GmbH and Co KG filed Critical A Roemheld GmbH and Co KG
Publication of EP0919729A2 publication Critical patent/EP0919729A2/fr
Publication of EP0919729A3 publication Critical patent/EP0919729A3/fr
Withdrawn legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
    • F15B15/08—Characterised by the construction of the motor unit
    • F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
    • F15B15/1423—Component parts; Constructional details
    • F15B15/1438—Cylinder to end cap assemblies
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
    • F15B15/08—Characterised by the construction of the motor unit
    • F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
    • F15B15/1414—Characterised by the construction of the motor unit of the straight-cylinder type with non-rotatable piston
    • F15B15/1419—Characterised by the construction of the motor unit of the straight-cylinder type with non-rotatable piston of non-circular cross-section

Definitions

  • the invention relates to a block cylinder for receiving and Management of tools on machine tools and work tables, in the cylindrical bores of the working piston with piston rod are slidably guided and that the piston rod is rotatably mounted.
  • Block cylinders are used on processing machines or special machines used to hold and guide tools. This Tools in the form of presses, dies, etc., as well Scissors knives for separating plastic parts and residues partially exposed to great forces, so that high leadership Requirements are made.
  • the advantage of the solution according to the invention is that cylinders and Pistons correspond to a normal round design and therefore for the transmission of large forces can be used. Where, however, the complete protection against lateral forces and torsion from the Piston rod are taken over, the cross section of which easily given conditions is adaptable and through the leadership in one Socket also presents no manufacturing problems. At this solution does not create any additional pinch points, as with flanged guide elements common.
  • the piston rod has due to their polygon shape, a high degree of rigidity, making them large Lateral forces are transferable and high guidance accuracy is achievable. Hydraulic pressures of 500 bar can be effortlessly done achieve. In addition, a space-saving construction is created.
  • the block cylinder consists of a housing 1 in which one cylindrical bore 2 and a threaded bore 3 are introduced.
  • the threaded hole 3 is divided into those with an internal thread provided upper part 3a and into one towards the cylinder bore 2 tapered part 3b.
  • the piston 5 is in the cylindrical bore 2 guided.
  • the piston 5 is assigned a piston rod 6, the Cross section that corresponds to a polygon.
  • the polygon is here shown triangular, it can also be in the form of a polygon square or polygon pentagon.
  • the shape of the piston rod 6 corresponds to the shape of a regular polygon with all sides and angles are congruent.
  • the polygonal piston rod 6 is in a guide bush 7 guided.
  • the guide bush 7 is thus the inside of the polygon adapted and has seals 8 in the form of wipers that the Piston rod 6 against the inner wall of the guide bush seal.
  • seals 8 There are grooves in the inner wall of the guide bush introduced that correspond to the polygon cross section and into which Seals can be inserted.
  • the seals 8 have the same here Polygon shape like piston rod and guide bush.
  • a additional external sealing 9 also secures the whole thing to the outside from.
  • the guide bush 7 is provided with an external thread 10, so that this can be screwed into the threaded part 3a of the threaded bore 3.
  • the guide bush 7 is screwed in under great prestress, which provides additional security against rotation.
  • the guide bush 7 is 11 in its lower part also tapered to fit in the housing 1.
  • the piston rod 6 is conical at its protruding end 12 better tool pick-up. This allows torsional moments transferred better and the tools can be in their angular position can be adjusted more easily.
  • the cone version 12 is only one the possibilities for tool holder. Any other kind of Tool holder can be attached here, such as thread fastening, Holes with cross pins etc.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Actuator (AREA)
EP98117095A 1997-11-28 1998-09-10 Vérin avec tige de piston guidé sans rotation Withdrawn EP0919729A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE1997152671 DE19752671B4 (de) 1997-11-28 1997-11-28 Blockzylinder zur Aufnahme und Führung von Werkzeugen auf einer Werkzeugmaschine oder auf einem Arbeitstisch
DE19752671 1997-11-28

Publications (2)

Publication Number Publication Date
EP0919729A2 true EP0919729A2 (fr) 1999-06-02
EP0919729A3 EP0919729A3 (fr) 2002-01-16

Family

ID=7850027

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98117095A Withdrawn EP0919729A3 (fr) 1997-11-28 1998-09-10 Vérin avec tige de piston guidé sans rotation

Country Status (2)

Country Link
EP (1) EP0919729A3 (fr)
DE (1) DE19752671B4 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104613044A (zh) * 2015-01-28 2015-05-13 张汉桥 一种液压缸组件
US9281775B2 (en) 2011-09-19 2016-03-08 Ludwig Ehrhardt Gmbh Clamping device with an electric motor
CN114215817A (zh) * 2021-12-17 2022-03-22 建湖县八达液压机械有限公司 一种液压油缸保护装置及具有该装置的液压油缸
WO2025199563A1 (fr) * 2024-03-29 2025-10-02 Trumpf Maschinen Austria Gmbh & Co. Kg. Unité cylindre-piston

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102016010657B4 (de) 2016-09-02 2024-12-24 Ludwig Ehrhardt Gmbh Spannvorrichtung mit einer Sensoranordnung
CN109058218B (zh) * 2018-08-28 2020-02-14 佛山市云峰精密机械有限公司 一种伺服刀塔用的缓冲活塞缸及伺服刀塔

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7232039U (de) * 1973-01-04 Klopfer A Gmbh Werkzeughaltevorrichtung
DE1934382U (de) * 1965-12-13 1966-03-10 Festo Maschf Stoll G Kolbenstange mit fuehrung fuer einen in einem pneumatischen oder hydraulischen druckmittel gefuellten arbeitszylinder hin und her gehenden kolben.
US3603213A (en) * 1969-03-12 1971-09-07 Pneumo Dynamics Corp Bushing-restrictor
DE2225009A1 (de) * 1971-08-11 1973-02-15 Federal Screw Works Halter fuer ein hinterstechwerkzeug fuer automatischeschraubenbaenke oder dgl
DE2519251A1 (de) * 1975-04-30 1976-11-11 Reinhold Pilzecker Arbeitsgeraet, bestehend aus kolbenstange und zylinder
JPS58217805A (ja) * 1982-06-11 1983-12-17 Kootaki Kk 圧力シリンダ装置及びそれを用いた油圧プレス装置
DE3427124A1 (de) * 1983-07-23 1985-01-31 Hermann Dipl.-Ing. 7140 Ludwigsburg Kastner Teilbares werkzeug fuer die spanabhebende bearbeitung
DE3435964A1 (de) * 1984-09-29 1986-04-10 Teja 7814 Breisach Winterhalter Zylinder mit verdrehungsgesicherter kolbenstange
JPS63122902A (ja) * 1986-11-13 1988-05-26 Ckd Controls Ltd 移動体の位置確認装置
DE59302271D1 (de) * 1993-02-19 1996-05-23 Schuette Alfred H Gmbh & Co Kg Aufspannvorrichtung
DE19500137A1 (de) * 1995-01-04 1996-07-11 Beetz Hydraulik Gmbh Druckmittelbetätigte Zylinder-Kolben-Anordnung mit einem Magnetfeldsensor
DE19530131C1 (de) * 1995-08-16 1996-09-05 Spinner Werkzeugmaschinenfabri Fluidisch betätigbare Spannvorrichtung

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9281775B2 (en) 2011-09-19 2016-03-08 Ludwig Ehrhardt Gmbh Clamping device with an electric motor
CN104613044A (zh) * 2015-01-28 2015-05-13 张汉桥 一种液压缸组件
CN114215817A (zh) * 2021-12-17 2022-03-22 建湖县八达液压机械有限公司 一种液压油缸保护装置及具有该装置的液压油缸
CN114215817B (zh) * 2021-12-17 2024-03-01 建湖县八达液压机械有限公司 一种具有保护装置的液压油缸
WO2025199563A1 (fr) * 2024-03-29 2025-10-02 Trumpf Maschinen Austria Gmbh & Co. Kg. Unité cylindre-piston
AT528353A1 (de) * 2024-03-29 2025-10-15 Trumpf Maschinen Austria Gmbh & Co Kg Zylinder-Kolben-Einheit

Also Published As

Publication number Publication date
EP0919729A3 (fr) 2002-01-16
DE19752671B4 (de) 2006-11-23
DE19752671A1 (de) 1999-06-02

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