DE19701021A1 - Parting tool for jammed extrusion die - Google Patents

Parting tool for jammed extrusion die

Info

Publication number
DE19701021A1
DE19701021A1 DE1997101021 DE19701021A DE19701021A1 DE 19701021 A1 DE19701021 A1 DE 19701021A1 DE 1997101021 DE1997101021 DE 1997101021 DE 19701021 A DE19701021 A DE 19701021A DE 19701021 A1 DE19701021 A1 DE 19701021A1
Authority
DE
Germany
Prior art keywords
vibrations
jammed
extrusion die
parting tool
tool
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.)
Ceased
Application number
DE1997101021
Other languages
German (de)
Inventor
Ozren Dipl Ing Kuzmanovic
Herbert Schubert
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.)
MICROTECHNICA GmbH
Original Assignee
MICROTECHNICA 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
Priority claimed from DE1996103542 external-priority patent/DE19603542A1/en
Application filed by MICROTECHNICA GmbH filed Critical MICROTECHNICA GmbH
Priority to DE1997101021 priority Critical patent/DE19701021A1/en
Publication of DE19701021A1 publication Critical patent/DE19701021A1/en
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P19/00—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes
    • B23P19/02—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes for connecting objects by press fit or for detaching same
    • B23P19/033—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes for connecting objects by press fit or for detaching same using vibration
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C25/00—Profiling tools for metal extruding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C35/00—Removing work or waste from extruding presses; Drawing-off extruded work; Cleaning dies, ducts, containers, or mandrels
    • B21C35/06—Cleaning dies, ducts, containers or mandrels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P19/00—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes
    • B23P19/02—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes for connecting objects by press fit or for detaching same
    • B23P19/025—For detaching only
    • 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
    • B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
    • 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
    • B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
    • B25B27/02—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Extrusion Of Metal (AREA)

Abstract

The tool is formed as a two-piece, prism-shaped parting tool, each component being positioned symmetrically relative to the other component. They are actuated by a hydraulic drive so as to be vibrated by a suitable coupled vibrator, and so that the vibrations are transmitted to the jammed extrusion die. The vibrations may be generated by suitable impulse control of the hydraulic drive of the parting tools, or by a pneumatic-hydraulic transmission drive.

Description

Die Aufgabe der Trennung der Matrize eines Strangpreßwerkzeugs von dem fest verpreßten Kernstück wird durch das Hauptpatent erfindungsgemäß dadurch gelöst, daß symmetrisch angeordnete, keilförmige, hydraulisch angetriebene, selbständig axial und radial zentrierende Trennprismen in die vorhandene Nut zwischen Matrize und Kernstück mit großer Preßkraft eingreifen.The task of separating the die of an extrusion die from the fixed pressed core is according to the invention by the main patent solved that symmetrically arranged, wedge-shaped, hydraulically driven, Separate axially and radially centering separating prisms in the existing groove intervene between the die and the core with great pressure.

Wenn sich Matrize und Kernstück beim Strangpressen unter dem hohen Arbeitsdruck ineinander verkeilen oder durch die hohe Reibkraft an der kegelförmigen Trennfläche eine innige Verbindung eingehen, ist es oft trotz Trennkräften bis zu 40 000 N nicht möglich, eine Trennung zu erreichen.If the die and core are under the high during extrusion Wedge working pressure into each other or due to the high frictional force on the conical interface form an intimate connection, it is often despite Separation forces of up to 40,000 N are not possible to achieve separation.

In diesen Fällen führt eine vibrierende Trennkraft zum Erfolg.In these cases, a vibrating separation force leads to success.

Durch eine Überlagerung einer Vibration zu der statisch aufgebrachten hydraulisch erzeugten Kraft auf die Trennprismen, werden auch innige Verbindungen von 2 metallischen Teilen gelockert. Da durch die hohe statische Anpresskraft der vibrierenden Trennprismen eine sehr gute Ankopplung der Vibrationen an die beiden Teile des Strangpreßwerkzeugs erreicht wird, liegt ein optimaler Löseeffekt durch die Schwingungen von Matrize und Kern vor.By superimposing a vibration on the statically applied hydraulically generated force on the separation prisms are also intimate Connections of 2 metallic parts loosened. Because of the high static Contact force of the vibrating separation prisms is a very good coupling of the Vibrations to the two parts of the extrusion tool is reached optimal release effect due to the vibrations of the die and core.

Die Vibrationen können zum Beispiel durch Impulsbeaufschlagung der Hydraulikzylinder einfach erzeugt werden.The vibrations can be caused, for example, by impulse impulses Hydraulic cylinders are easily generated.

Die mit dem geschilderten Zusatzmerkmal der Erfindung erzielbaren Vorteile bestehen insbesondere darin,
daß durch eine einfache und preisgünstige Zusatzsteuerung zur Druckregelung der Hydraulikzylinder ein optimaler Trenneffekt erzielt werden kann.The advantages which can be achieved with the described additional feature of the invention consist in particular in
that an optimal separation effect can be achieved by a simple and inexpensive additional control for pressure regulation of the hydraulic cylinders.

Claims (3)

1. Vorrichtung mit Trennkeilen zum Zerlegen eines 2-teiligen Strangpreßwerkzeugs mit Trennut, dadurch gekennzeichnet, daß die hydraulisch angetriebenen, symmetrisch angeordneten, prismenförmigen Trennwerkzeuge durch einen geeigneten, angekoppelten Vibrator in Vibrationen versetzt werden, die sich auf das verklemmte Strangpreßwerkzeug übertragen.1. Device with separating wedges for disassembling a 2-part extrusion tool with separating groove, characterized in that the hydraulically driven, symmetrically arranged, prism-shaped separating tools are set into vibrations by a suitable, coupled vibrator, which are transmitted to the jammed extrusion tool. 2. Vorrichtung nach Anspruch 1 dadurch gekennzeichnet, daß die Vibrationen durch eine geeignete Impulssteuerung des hydraulischen Antriebs der Trennwerkzeuge erreicht wird.2. Device according to claim 1, characterized in that the vibrations by a suitable pulse control of the hydraulic Drive of the cutting tools is reached. 3. Vorrichtung nach Anspruch 1 dadurch gekennzeichnet, daß die Vibrationen durch einen pneumatisch-hydraulischen Übersetzungsantrieb erzeugt werden.3. Device according to claim 1, characterized in that the vibrations by a pneumatic-hydraulic Translation drive are generated.
DE1997101021 1996-01-30 1997-01-14 Parting tool for jammed extrusion die Ceased DE19701021A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE1997101021 DE19701021A1 (en) 1996-01-30 1997-01-14 Parting tool for jammed extrusion die

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE1996103542 DE19603542A1 (en) 1996-01-30 1996-01-30 Device with separating wedges for splitting two=part extrusion tool
DE1997101021 DE19701021A1 (en) 1996-01-30 1997-01-14 Parting tool for jammed extrusion die

Publications (1)

Publication Number Publication Date
DE19701021A1 true DE19701021A1 (en) 1998-07-16

Family

ID=26022541

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1997101021 Ceased DE19701021A1 (en) 1996-01-30 1997-01-14 Parting tool for jammed extrusion die

Country Status (1)

Country Link
DE (1) DE19701021A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1025925A1 (en) * 1999-02-02 2000-08-09 Walter Zeller Method and device for forming of metals
EP1145781A1 (en) * 2000-04-12 2001-10-17 Compes S.p.A. Machine for opening extrusion dies

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1025925A1 (en) * 1999-02-02 2000-08-09 Walter Zeller Method and device for forming of metals
WO2000045976A1 (en) * 1999-02-02 2000-08-10 Walter Zeller Method and device for forming metals
EP1145781A1 (en) * 2000-04-12 2001-10-17 Compes S.p.A. Machine for opening extrusion dies
US6430793B1 (en) 2000-04-12 2002-08-13 Compes S.P.A. Machine for opening dies for extruding aluminum and alloys thereof

Similar Documents

Publication Publication Date Title
EP0748942A1 (en) Connecting system and process for releasably connecting two elements
EP0713741B1 (en) Process for fracture separation of a workpiece in an area close to a bore, particularly for split bearings, preferably connecting rods of alternating piston engines
DE2028532A1 (en) Jig
EP2204266A1 (en) Device and method for assembling and disassembling a profile shaft with or off a joint yoke of a cross joint shaft
DE60200176T2 (en) Clutch-brake assembly
DE19701021A1 (en) Parting tool for jammed extrusion die
EP0258594B1 (en) Clamping device for the bearing rings of wheel flange hubs
DE4138974C2 (en)
DE2424668A1 (en) Mounting of car wheels on balancing machine shaft - designed for wheels with different discs
CH669343A5 (en)
EP3141326A1 (en) Hydraulic clamping device
DE19716816C2 (en) Method and device for separating a hollow body produced by the hydroforming process
DE2008055A1 (en) Switching device for changing the direction of the resulting centrifugal force on counter-rotating vibration exciters
EP0128275B1 (en) Chucks for machine tools
DE19911683A1 (en) Ultrasonic sonotrode, grips tip resiliently for e.g. welding, cutting or spot welding, avoiding conventional clamping screw which causes losses and overheating
DE19925029A1 (en) Deforming process used for extruding workpieces comprises pre-tensioning the mold using a tensioning cone before or during extruding and unlocking before ejecting
DE19603542A1 (en) Device with separating wedges for splitting two=part extrusion tool
EP1620220B1 (en) Method and device for breaking separation of bearing caps
EP1108480A3 (en) Device and method for effecting a mechanical
EP0528155A2 (en) Chuck for machine tools
DE19525309A1 (en) Clamping jaw unit, for cylindrical workpieces e.g. plastic pipes - comprises two ring shaped axially moved clamping plates which hold clamping elements, useful esp. for simple and effective jaw unit
EP0257104A1 (en) Hydraulically operated wedge clamp for material testing devices
DE2549714B1 (en) Friction clutch and braking device
EP2747950B1 (en) Hand-held machine tool
DE102006043959A1 (en) Workpiece processing machine, has tool, which is mounted in component part that is brought into effective connection with machine by quick clamp device, where component part has recess for handle body of quick clamp device

Legal Events

Date Code Title Description
AF Is addition to no.

Ref country code: DE

Ref document number: 19603542

Format of ref document f/p: P

8131 Rejection