DE871991C - Process for cooling punching, pressing and shearing tools during the work process - Google Patents

Process for cooling punching, pressing and shearing tools during the work process

Info

Publication number
DE871991C
DE871991C DEW3836D DEW0003836D DE871991C DE 871991 C DE871991 C DE 871991C DE W3836 D DEW3836 D DE W3836D DE W0003836 D DEW0003836 D DE W0003836D DE 871991 C DE871991 C DE 871991C
Authority
DE
Germany
Prior art keywords
tool
pressing
tools during
shearing tools
work process
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
Application number
DEW3836D
Other languages
German (de)
Inventor
Otto Dipl-Ing Droemmer
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.)
Fritz Werner AG
Original Assignee
Fritz Werner 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 Fritz Werner AG filed Critical Fritz Werner AG
Priority to DEW3836D priority Critical patent/DE871991C/en
Application granted granted Critical
Publication of DE871991C publication Critical patent/DE871991C/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D37/00—Tools as parts of machines covered by this subclass
    • B21D37/16—Heating or cooling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
    • B23D33/00—Accessories for shearing machines or shearing devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D7/08—Means for treating work or cutting member to facilitate cutting
    • B26D7/10—Means for treating work or cutting member to facilitate cutting by heating

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Heat Treatment Of Articles (AREA)

Description

Bei der Verwendung von Stanz-, Preß-.und Abscherwerkzeugen macht sich der Übelstand geltend, daB insbesondere bei hochbeanspruchten Werkzeugen dieser Art sog. Anfressungen des Werkzeugs auftreten. Sie sind darin begründet, daß beim Arbeitsvorgang zu höhe Wärmeentwicklungen entstehen, die das Härtegefüge des Werkzeugmaterials zerstören., so daS Ausbröckelungen; Aufschweißengen und andere bekannte Zerstörungen des Werkzeugs vorkommen. Bei schieberartig gestalteten und in geschlossenen Führungen bewegten Abscherwerkzeugen ergab sich hierdurch ein Festklemmen des Werkzeugs in seiner Führung.When using punching, pressing. And shearing tools, the drawback asserts that, especially with highly stressed tools, this Type of so-called pitting of the tool occur. They are based on the fact that the Work process too high heat build-up occurs, which affects the hardness of the tool material destroy., so that crumbling; Welding and other known destructions of the tool. In the case of slide-like designs and in closed guides Moving shearing tools resulted in the tool getting stuck in his leadership.

Diese durch die starke Erwärmung der Werkzeuge auftretenden Nachteile werden gemäß der Erfindung dadurch vermiedeny daß während des Arbeitsvorganges dem Werkzeug selbst Druckluft zugeführt wird, die an der meistbeansprüchten Zone oder an einer dieser möglichst naheliegenden Stelle durch einen oder mehrere im Werkzeug vorgesehene Ausläse expandiert und dadurch das Werkzeug von inneu. her in derart starkem Maße abkühlt, daß Störungen der oben angegebenen Art nicht mehr auftreten. Gleichzeitig werden auch stärkere abgelöste Werkstückteile durch die expandierende Druckluft weggeblasen, was ebenfalls zur Säuberhaltung des Werkzeugs und Verhütung von. Störungen und Werkzeugbeschädigungen beiträgt.These disadvantages caused by the strong heating of the tools are avoided according to the invention that the during the operation Tool itself is supplied with compressed air, which is at the most stressed zone or at one of these as close as possible by one or more in the tool provided outlets expands and thus the tool from the inside out. forth in such a way cools to a great extent that disturbances of the type specified above no longer occur. At the same time, stronger detached workpiece parts are also released by the expanding Compressed air blown away, which also helps keep the tool clean and prevents it from. Malfunctions and tool damage contributes.

In der Zeichnung ist ein Anwendungsbeispiel des Erfindungsgedankens dargestellt, und zwar ist im senkrechten Schnitt ein Abschermesser an einer Presse zum gleichzeitigen Abtrennen zweier Abschnitte von der Materialstange gezeigt.In the drawing is an example of the application of the inventive concept shown, namely a shear blade on a press is in vertical section for the simultaneous severing of two sections from the bar of material.

Bei der alsAusführüngsbeispiel gewähltenPresse zum gleichzeitigen Abtrennen der beiden, Abschnitte I und II von der senkrecht zugeführten, Materialstange i ist in entsprechenden Führungen ein Abschermesser2@ vorgesehen, das seine Vor- und Zurückbewegung direkt oder indirekt vom Preßschlitten erhält und, als prismenförmiger Schieber ausgebildet ist.In the case of the press selected as an exemplary embodiment for simultaneous Separate the two sections I and II from the vertically fed material bar i a shear cutter2 @ is provided in the corresponding guides, which and return movement received directly or indirectly from the press slide and, as a prismatic Slide is formed.

Das Messer besitzt eine zentrale Bohrung 3, welche in die Schneidfiäche2' ausmündet und am entgebgengesetztenEnde nach einemAnschlußstück4 für einen Preßluftschlauch 5 führt. Die Preßluft wird also während des Arbeitsvorganges int das Innere des Werkzeugs geleitet und verursacht durch ihre Expansion beim Austritt aus dem Kanal 3, also insbesondere an der Druck- bzw. Schneidenfläche des Werkzeugs, eine starke Abkühlung, wodurch die oben geschilderten Nachteile vermieden werden.The knife has a central hole 3, which in the cutting surface 2 ' opens out and at the opposite end to a connector 4 for a compressed air hose 5 leads. The compressed air is thus int the inside of the during the work process Tool guided and caused by their expansion when exiting the channel 3, so in particular on the pressure or cutting surface of the tool, a strong Cooling, which avoids the disadvantages outlined above.

Je nach Art und Verwendungszweck des Werkzeugs sind die Mittel zur Überführung der Druckluft in dieses bzw. nach der am meisten erhitzten Zone zu wählen und anzuordnen. Beispielsweise könnten auch mehrere Expansionskanüle im Werkzeug vorgesehen sein.Depending on the type and purpose of the tool, the means for Transfer the compressed air to this or to the most heated zone and to arrange. For example, several expansion cannulas could also be in the tool be provided.

Claims (2)

PATENTANSPRÜCHE: i. Verfahren zum Kühlen von Stanz-; Preßun-d Abscherwerkzeugen während des Arbeitsvorganges, dadurch .gekennzeichnet, daß dem Werkzeug selbst Druckluft zugeführt wird, die vorzugsweise an der meistbeanspruchten Zone aus ihm austritt und durch ihre Expansion, die Kühlwirkung herbeiführt. PATENT CLAIMS: i. Method for cooling stamping; Pressing and shearing tools during the work process, characterized in that the tool itself is compressed air is supplied, which preferably emerges from it at the most stressed zone and through their expansion, brings about the cooling effect. 2. Verfahren. nach- Anspruch i, dadurch gekennzeichnet, daß die Druckluft einem oder mehreren, im Innern des Werkzeugs vorgesehenen Kanälen zugeführt wird, die in der meistbeanspruchten Werkzeugzone ausmünden.2. Procedure. according to claim i, characterized in that the compressed air is one or more inside the Tool provided channels is supplied, which is in the most stressed tool zone flow out.
DEW3836D 1942-12-29 1942-12-29 Process for cooling punching, pressing and shearing tools during the work process Expired DE871991C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEW3836D DE871991C (en) 1942-12-29 1942-12-29 Process for cooling punching, pressing and shearing tools during the work process

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEW3836D DE871991C (en) 1942-12-29 1942-12-29 Process for cooling punching, pressing and shearing tools during the work process

Publications (1)

Publication Number Publication Date
DE871991C true DE871991C (en) 1953-03-26

Family

ID=7592130

Family Applications (1)

Application Number Title Priority Date Filing Date
DEW3836D Expired DE871991C (en) 1942-12-29 1942-12-29 Process for cooling punching, pressing and shearing tools during the work process

Country Status (1)

Country Link
DE (1) DE871991C (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3112851A (en) * 1960-01-28 1963-12-03 Bendix Corp Method of and apparatus for deburring rubber-like articles
US3224396A (en) * 1963-12-09 1965-12-21 Singer Co Tufting machine hook and knife mechanism
DE102010033816A1 (en) * 2010-06-16 2011-12-22 Giw Gesellschaft Für Innovative Werkzeugsysteme Mbh Tempered tool

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3112851A (en) * 1960-01-28 1963-12-03 Bendix Corp Method of and apparatus for deburring rubber-like articles
US3224396A (en) * 1963-12-09 1965-12-21 Singer Co Tufting machine hook and knife mechanism
DE102010033816A1 (en) * 2010-06-16 2011-12-22 Giw Gesellschaft Für Innovative Werkzeugsysteme Mbh Tempered tool

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