DE356817C - Method for pressing twisting trains into rifle and pistol barrels with relatively weak walls using a mandrel - Google Patents

Method for pressing twisting trains into rifle and pistol barrels with relatively weak walls using a mandrel

Info

Publication number
DE356817C
DE356817C DEV15854D DEV0015854D DE356817C DE 356817 C DE356817 C DE 356817C DE V15854 D DEV15854 D DE V15854D DE V0015854 D DEV0015854 D DE V0015854D DE 356817 C DE356817 C DE 356817C
Authority
DE
Germany
Prior art keywords
trains
mandrel
rifle
relatively weak
pressing
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
DEV15854D
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.)
Individual
Original Assignee
Individual
Publication date
Priority to DEV15854D priority Critical patent/DE356817C/en
Application granted granted Critical
Publication of DE356817C publication Critical patent/DE356817C/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
    • B21C37/06—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
    • B21C37/15—Making tubes of special shape; Making tube fittings
    • B21C37/152—Making rifle and gunbarrels
    • B21C37/153—Making tubes with inner- and/or outer guides

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Metal Extraction Processes (AREA)
  • Making Paper Articles (AREA)

Description

Verfahren zum Einpressen von Drallzügen in Gewehr- und Pistolenläufe mit verhältnismäßig schwachen Wandungen mittels Dornes. Die Herstellung von Drallzügen in Gewehr-und Pistolenläufen durch Herausschaben oder Herausschneiden der Züge mittels Ziehmesser und nachfolgendem Blankschmirgeln der Züge ist bekannt; ebenso ist bekannt das Einpressen der Züge mittels Dornes mit geripptem Kopf im warmen Zustande der Rohre.Process for pressing twist locks into rifle and pistol barrels with relatively weak walls by means of a mandrel. The manufacture of twist trains in rifle and pistol barrels by scraping or cutting out the slides by means of Draw knives and subsequent smooth sanding of the trains is known; it is also known pressing in the trains by means of a mandrel with a ribbed head in the warm state of the Tube.

Das Wesen der neuen Erfindung liegt in der Herstellung der Züge durch Einpressen der Züge in den Laufwerkstoff auf kaltem Wege mittels eines Ziehdornes unter Benutzung einer, den herzustellenden Zügen entsprechend eingeschnittenen Matrize, wie nachstehend beschrieben.The essence of the new invention lies in the manufacture of trains through Pressing the cables into the running gear material by cold means using a mandrel using a die cut according to the trains to be produced, as described below.

Ein Ziehdorn (Abb. i) mit einem den herzustellenden Zügen entsprechend gefortnte z Kopf a, dessen Querschnitt c zeigt, wird mit seinem Schaft b durch den zu ziehenden Lauf (Abb. a) gesteckt und der Ziehdorn sowie der Lauf in die bekannte Ziehmaschine fest eingespannt. Hierauf wird der Ziehdorn in der auf der Maschine eingestellten Drallrichtung nurch den Lauf gezogen, wobei sich die Vorsprünge des Ziehkopfes in den Laufwerkstoff einpressen, so daß nach Durchgang des Ziehdornes die Züge fertig und blank sind und keine weitere Bearbeitung mehr erfordern. Zur Ermöglichung des Durchziehens auf kaltem Wege ist eine Einspannmatrize (Abb. 3) angeordnet, in die Züge eingeschnitten sind, die den jeweils herzustellenden Zügen entsprechen, damit sich beim Durchziehen des Ziehdornes der durch denselben verdrängte Laufwerkstoff nach außen hin durchsetzen kann. In diese Matrize wird der Lauf in seiner ganzen Länge fest eingespannt.A mandrel (Fig. I) with one of the pulls to be produced fortified z head a, whose cross-section shows c, is with its shaft b through the The barrel to be pulled (Fig. a) is inserted and the mandrel and barrel are inserted into the known Drawing machine firmly clamped. Then the mandrel is in the on the machine adjusted twist direction only pulled through the barrel, whereby the projections of the Press the pulling head into the running gear material so that after the pulling mandrel has passed through the trains are finished and bare and do not require any further processing. To the A clamping die is used to enable cold pulling through (Fig. 3) arranged, are cut into the trains, the trains to be produced in each case correspond so that when pulling through the mandrel, the one displaced by the same Drive material can enforce to the outside. The barrel in firmly clamped along its entire length.

Die Bohrung der :Matrize ist gleich dem äußeren Durchmesser des Laufes, so daß ein Aufweiten des Laufes beim Ziehen nicht eintreten. kann. Abb. q. zeigt den Querschnitt der Matrize.The bore of the: die is equal to the outer diameter of the barrel, so that a widening of the barrel does not occur when pulling. can. Fig.q. shows the cross section of the die.

Durch vorstehend erläutertes urerfahren, bei dem außen auf dem Rohre Erhöhungen entstehen, lassen sich glatte und gleichmäßige Züge in Gewehr- und Pistolenläufen, insbesondere für kleine Kaliber und Luftgewehre mit verhältnismäßig schwachen Wandungen, bedeutend vorteilhafter als nach den bisher bekannten Verfahren herstellen.Through the above-mentioned experience, with the outside on the pipe Elevations arise, smooth and even strokes can be made in rifle and pistol barrels, especially for small caliber and air rifles with relatively weak walls, Produce significantly more advantageously than by the previously known methods.

Claims (1)

PATENT-ANSPRUCH: Verfahren zum Einpressen von Drallzügen in Gewehr- und Pistolenläufe mit verhältnismäßig schwachen Wandungen mittels Dornes, dadurch gekennzeichnet, daß das Einpressen auf kalten Wege erfolgt unter Benutzung einer Einspannmatrize mit eingeschnittenen Zügen, dic den jeweils herzustellenden Zügen entsprechen und zur Aufnahme des durch den Dorn verdrängten Laufwerkstoffes dienen.PATENT CLAIM: Process for pressing twist locks into rifle and pistol barrels with relatively weak walls by means of a mandrel, thereby characterized in that the pressing is carried out on cold routes using a Clamping die with incised trains, dic the trains to be produced in each case correspond and serve to accommodate the drive material displaced by the mandrel.
DEV15854D Method for pressing twisting trains into rifle and pistol barrels with relatively weak walls using a mandrel Expired DE356817C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEV15854D DE356817C (en) Method for pressing twisting trains into rifle and pistol barrels with relatively weak walls using a mandrel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEV15854D DE356817C (en) Method for pressing twisting trains into rifle and pistol barrels with relatively weak walls using a mandrel

Publications (1)

Publication Number Publication Date
DE356817C true DE356817C (en) 1922-07-31

Family

ID=7575275

Family Applications (1)

Application Number Title Priority Date Filing Date
DEV15854D Expired DE356817C (en) Method for pressing twisting trains into rifle and pistol barrels with relatively weak walls using a mandrel

Country Status (1)

Country Link
DE (1) DE356817C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3032857A (en) * 1958-07-21 1962-05-08 Lyon Inc Apparatus for forming integral ribs upon the circumference of a rigid tubular shape

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3032857A (en) * 1958-07-21 1962-05-08 Lyon Inc Apparatus for forming integral ribs upon the circumference of a rigid tubular shape

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