DE534382C - Box pliers for drawbars - Google Patents

Box pliers for drawbars

Info

Publication number
DE534382C
DE534382C DENDAT534382D DE534382DD DE534382C DE 534382 C DE534382 C DE 534382C DE NDAT534382 D DENDAT534382 D DE NDAT534382D DE 534382D D DE534382D D DE 534382DD DE 534382 C DE534382 C DE 534382C
Authority
DE
Germany
Prior art keywords
jaws
pliers
box
slide
drawbars
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
DENDAT534382D
Other languages
German (de)
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.)
Sundwiger Eisenhuette Maschinenfabrik Grah and Co
Original Assignee
Sundwiger Eisenhuette Maschinenfabrik Grah and Co
Publication date
Application granted granted Critical
Publication of DE534382C publication Critical patent/DE534382C/en
Expired legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21CMANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C1/00Manufacture of metal sheets, metal wire, metal rods, metal tubes by drawing
    • B21C1/16Metal drawing by machines or apparatus in which the drawing action is effected by other means than drums, e.g. by a longitudinally-moved carriage pulling or pushing the work or stock for making metal sheets, bars, or tubes
    • B21C1/27Carriages; Drives
    • B21C1/28Carriages; Connections of grippers thereto; Grippers

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Gripping Jigs, Holding Jigs, And Positioning Jigs (AREA)

Description

Kastenzange für Ziehbänke Zum gemeinsamen Ziehen mehrerer Stangen oder Rohre sind Ziehbankwagen bekannt; bei welchen die. parallel miteinander verschiebbaren- Ziehbacken durch ein kompliziertes Hebelsystem so verschiebbar eingerichtet sind, daß sie verschieden dickes Ziehgut greifen können. In einfachster Weise wird dieses Problem bei vorliegender Erfindung dadurch gelöst, daß die die- Backen verschiebenden Schieber die Verschiebekraft' unter Zwischenschaltung von Federn auf die Ziehbacken übertragen.Box pliers for draw benches For pulling several bars together or pipes are known draw bench trolleys; at which the. sliding parallel to each other- Pulling jaws are set up so that they can be moved using a complicated system of levers, that they can grip different thicknesses of the drawing material. In the simplest way this is Problem solved in the present invention in that the die-shifting jaws Slide the displacement force 'with the interposition of springs on the pulling jaws transfer.

In Fig. r und 2 ist ein Ausführungsbeispiel mit z. B. zwei übereinanderliegenden Backenpaaren im Aufriß und GYundriß dargestellt.In Fig. R and 2, an embodiment with z. B. two superimposed Jaw pairs shown in elevation and GYundriß.

In denk Ziehwagengestell A sind in schrägen Führungen F die Ziehbacken B1, B2 und Cl, C2 verschiebbar. In die ungeschnitten gezeichneten, hakenförmigen Ansätze G dieser Backen greift der durch den Hebel E bewegte SchieberD ein. Zwischen diesem SchieberD und den einzelnen Backen sind in der Schließrichtung der Backen Federn J und Stifte K ,eingeschaltet. Diese Federn sind bei zusammengebautem Zangenwagen so stark vorgespannt, daß sie stark genug sind, die Ziehbacken vorzuschieben, ohne zusammengedrückt zu werden. ' In der Ausgangsstellung besteht dementsprechend ein Zwischenraum H zwischen dem Schieber D und den Backen. Wenn nun in die beiden geöffneten Backenpaare zu ziehende Stangen von verschiedener Stärke eingelegt werden, z. B. in das untere Backenpaar C1, C2 leine dickere Stange, so werden bei Bewegen des Hebels E, sobald die untere zu ziehende Stange gefaßt ist und ein Verschieben der unteren Backen infolgedessen nicht mehr möglich ist, die Federn des unteren Backenpaares durch den SchieberD zusammengedrückt, wähnend die oberen Backen B1, B2 unter Vermittlung der entsprechenden Federn J noch weiter verschoben werden, bis die obere dünne Stange von den oberen Backen gefaßt wird.In the pulling carriage frame A, the pulling jaws B1, B2 and Cl, C2 can be moved in inclined guides F. The slide D moved by the lever E engages in the uncut drawn, hook-shaped extensions G of these jaws. Between this slide D and the individual jaws, springs J and pins K are connected in the closing direction of the jaws. When the tong carriage is assembled, these springs are so strongly preloaded that they are strong enough to advance the pulling jaws without being compressed. 'In the starting position there is accordingly an intermediate space H between the slide D and the jaws. If now in the two open jaw pairs to be pulled rods of different strengths are inserted, z. B. in the lower pair of jaws C1, C2 a thicker rod, the springs of the lower pair of jaws are compressed by the slide D when the lever E is moved, as soon as the lower rod to be pulled is grasped and the lower jaws can no longer be moved , while the upper jaws B1, B2 are displaced even further by means of the corresponding springs J until the upper thin rod is gripped by the upper jaws.

Diese Anordnung der Federn ist natürlich auch bei Anordnung der Backen mit einer geradlinig sich verschiebenden mittleren Backe und bei mehr als zwei übereinander verschiebbaren Backenpaaren 'anzubringen.This arrangement of the springs is of course also with the arrangement of the jaws with one middle jaw that moves in a straight line and with more than two on top of each other movable jaw pairs' to attach.

Claims (1)

PATENTANSPRUCIi Kastenzange für Ziehbänke mit mehreren parallel zueinander verschiebbaren, keilartig arbeitenden Backen, die durch einen gemeinsamen Schieber in der Zugrichtung verschoben werden können, dadurch gekennzeichnet, daß dieser Schieber (D) die Verschiebekraft beim Einspannen von Ziehgut über Federn (J) auf die Bakken (B" B2, C" C2) überträgt.PATENTANSPRUCIi box pliers for draw benches with several parallel sliding, wedge-like working jaws, which can be moved in the pulling direction by a common slide, characterized in that this slide (D) exerts the shifting force when clamping the drawn material via springs (J) on the jaws ( B "B2, C" C2) transmits.
DENDAT534382D Box pliers for drawbars Expired DE534382C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE534382T

Publications (1)

Publication Number Publication Date
DE534382C true DE534382C (en) 1931-09-25

Family

ID=6556439

Family Applications (1)

Application Number Title Priority Date Filing Date
DENDAT534382D Expired DE534382C (en) Box pliers for drawbars

Country Status (1)

Country Link
DE (1) DE534382C (en)

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