DE1053288B - Method for producing firearm barrels with a smooth, conically widening muzzle piece on a hammering machine - Google Patents

Method for producing firearm barrels with a smooth, conically widening muzzle piece on a hammering machine

Info

Publication number
DE1053288B
DE1053288B DEA29460A DEA0029460A DE1053288B DE 1053288 B DE1053288 B DE 1053288B DE A29460 A DEA29460 A DE A29460A DE A0029460 A DEA0029460 A DE A0029460A DE 1053288 B DE1053288 B DE 1053288B
Authority
DE
Germany
Prior art keywords
producing
mandrel
smooth
conically widening
hammering machine
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.)
Pending
Application number
DEA29460A
Other languages
German (de)
Inventor
Dipl-Ing Franz Grill
Dipl-Ing Bruno Kralowitz
Otto Selle
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.)
GUSTAV APPEL MASCHINENFABRIK
Original Assignee
GUSTAV APPEL MASCHINENFABRIK
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 GUSTAV APPEL MASCHINENFABRIK filed Critical GUSTAV APPEL MASCHINENFABRIK
Priority to DEA29460A priority Critical patent/DE1053288B/en
Publication of DE1053288B publication Critical patent/DE1053288B/en
Pending 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
    • B21C37/00Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
    • B21C37/06Manufacture 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
    • B21C37/15Making tubes of special shape; Making tube fittings
    • B21C37/152Making rifle and gunbarrels
    • B21C37/153Making tubes with inner- and/or outer guides

Landscapes

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

Description

DEUTSCHESGERMAN

Im Hauptpatent ist ein Verfahren zum Herstellen von Rohren mit einer profilierten Innenfläche, insbesondere von Läufen von Schußwaffen, auf einer Hämmermaschine mittels eines dem herzustellenden Profil entsprechenden Domes unter Schutz gestellt. Dabei wird das Werkstück beim Hämmern über den profilierten Dorn hinweggeführt. Der Dorn führt sich hierbei mit seinem vorderen Ende in dem fertiggestellten Profil. Eine solche Einrichtung ist geeignet, einen Schußwaffenlauf auf seiner Lauflänge in einwandfreier Weise herzustellen.In the main patent is a method for producing pipes with a profiled inner surface, in particular of the barrels of firearms, on a hammering machine by means of one of the to be manufactured Profile corresponding domes placed under protection. The workpiece is hammered over the profiled mandrel led away. The mandrel leads here with its front end in the finished one Profile. Such a device is suitable, a firearm barrel on its barrel length in perfect condition Way to manufacture.

Nach der Erfindung wird das Verfahren nach dem Hauptpatent derart erweitert, daß der sich in dem fertiggestellten Profil führende Dorn ein vorderes Ansatzstück erhält, durch das es möglich ist, zunächst eine zylindrische, glatte Öffnung und dann einen gewünschten Übergang in den profilierten Teil des Rohres zu erzielen. Dadurch wird es möglich, in diesem konischen Übergangsteil ein Auslaufen der hergestellten Drallnuten zu erreichen, wobei die Tiefe der Drallnuten im konischen Teil allmählich abnimmt und die Dralliiuten dann ganz aufhören. Dieser Vorgang ist z. B. mit Räumnadeln oder anderen bisher bekannten Verfahren zur Herstellung von Schußwaffenläufen nicht möglich, da trotz des Engerwerdens des Schußwaffenlaufes nach vorn in seinem konischen Teil gleichzeitig eine Verflachung und ein Aufhören der dazugehörigen Drallnuten nicht erreicht werden kann.According to the invention, the method according to the main patent is expanded so that the in the finished profile leading mandrel receives a front extension piece, through which it is possible initially a cylindrical, smooth opening and then a desired transition into the profiled part of the pipe to achieve. This makes it possible in this conical transition part a leakage of the manufactured To achieve twist grooves, the depth of the twist grooves in the conical part gradually decreases and the Twist then stop completely. This process is z. B. with broaches or other previously known Process for the production of gun barrels not possible, because despite the narrowing of the gun barrel towards the front in its conical part at the same time a flattening and a cessation of the associated spiral grooves can not be achieved.

In der Zeichnung ist das Verfahren an einem Ausführungsbeispiel schematisch dargestellt.In the drawing, the method is shown schematically using an exemplary embodiment.

Der Dornteil 3 hat, wie beim Hauptpatent, Nuten 4. Das Ausgangswerkstück 2 wird durch entsprechend ausgebildete Hämmerbecken 1 auf den Dorn verformt. Auf der Strecke α wird die Verformungsarbeit vorgenommen, auf der Strecke b ist der Dornteil 3 zwangläufig in dem bereits fertiggestellten Rohrstück 2' geführt. Der Dorn 3 hat ein konisch verlaufendes Ansatzstück 3', auf dem die Nuten 4 langsam flacher werden und dann aufhören. An das konische Ansatzstück 3' schließt sich ein zylindrisches Ansatzstück 3" an. Das Hämmern wird derart geleitet, daß sich der Dorn gleichmäßig mit dem Rohr 2 durch die Hämmermaschine bewegt, wobei das Rohr 2 auf die Ansatzstücke 3' und 3" aufgehämmert wird. Ebenso wird eine gleichmäßige Weiterbewegung des Domes und des Rohres 2 bis in die in der Zeichnung dargestellte Lage der Hämmerbacken 1 zu dem Rohr 2 fortgeführt. Von dieser Lage ab wird der Dorn 3 gegenüber den Hämmerbacken 1 in axialer Richtung festgehalten, während er um seine Achse wegen der Führung in den Nuten 4 drehbar gelagert ist. Von dieser Stellung ab wird dann das Hämmerverfahren nach Verfahren zum Herstellen
von Schußwaffenläufen mit einem glatten, sich konisch erweiternden Mündungsstück auf einer Hämmermaschine
As in the main patent, the mandrel part 3 has grooves 4. The starting workpiece 2 is deformed onto the mandrel by appropriately designed hammer basins 1. The deformation work is carried out on the section α , on the section b the mandrel part 3 is inevitably guided in the pipe section 2 'that has already been completed. The mandrel 3 has a conical extension piece 3 'on which the grooves 4 slowly become shallower and then stop. The conical extension piece 3 'is followed by a cylindrical extension piece 3 ". The hammering is conducted in such a way that the mandrel moves uniformly with the tube 2 through the hammering machine, the tube 2 being hammered onto the extension pieces 3' and 3". Likewise, a uniform further movement of the dome and the pipe 2 is continued up to the position of the hammer jaws 1 in relation to the pipe 2 shown in the drawing. From this position onwards, the mandrel 3 is held in the axial direction with respect to the hammer jaws 1, while it is rotatably mounted about its axis because of the guidance in the grooves 4. From this position onwards, the hammering process is then followed by the process of manufacturing
of gun barrels with a smooth, conically widening muzzle piece on a hammering machine

Zusatz zum Patent 768 147Addendum to patent 768 147

Anmelder:Applicant:

Gustav Appel Maschinenfabrik,
Berlin-Spandau, Päwesiner Weg 19
Gustav Appel machine factory,
Berlin-Spandau, Päwesiner Weg 19

Dipl.-Ing. Franz Grill, Wien,Dipl.-Ing. Franz Grill, Vienna,

Dipl.-Ing. Bruno Kralowitz, Steyr (Österreich.),Dipl.-Ing. Bruno Kralowitz, Steyr (Austria.),

und Otto Seile, Pöfmeck (Thür.),and Otto Seile, Pöfmeck (Thür.),

sind als Erfinder genannt wordenhave been named as inventors

dem Hauptpatent weiter fortgeführt. Die Ansatzstückes' und 3" behindern das Verfahren nach dem Hauptpatent nicht, da die Abnahme des Durchmessers des konischen Ansatzstückes 3' so groß ist, daß das zylindrische Ansatzstück 3" des Domes frei in dem entsprechend dem Dornteil 3 verformten Rohr verschiebbar ist.the main patent continued. The extension piece 'and 3 "hinder the process according to the Main patent not because the decrease in the diameter of the conical extension piece 3 'is so large that the cylindrical extension piece 3 ″ of the dome freely displaceable in the tube deformed in accordance with the mandrel part 3 is.

Claims (1)

Patentanspruch:Claim: Verfahren zum Herstellen von Schußwaffenläufen auf einer Hämmermaschine mittels eines dem herzustellenden Profil entsprechenden Domes, über dem das Werkstück beim Hämmern hinweggeführt wird und der sich hierbei mit seinem vorderen Ende in dem fertiggestellten Profil führt, nach Patent 768 147, bei dem ein glattes zylindrisches, sich konisch in die Drallnuten erweiterndes Mundstück im Lauf hergestellt wird, dadurch gekennzeichnet, daß das Rohr (2) vor dem Hinwegführen über den Dorn (3) auf ein konisches Ansatzstück (3') und ein weiteres zylindrisches Ansatzstück (3") am vorderen Ende des Domes (3) ohne Relativverschiebung zwischen Dorn (3) und Rohr (2) aufgehämmert wird.Method for producing firearm barrels on a hammering machine by means of a Domes corresponding to the profile to be produced, over which the workpiece is passed during hammering and which is here with its front end in the finished profile, according to patent 768 147, in which a smooth cylindrical, conically widening into the twist grooves Mouthpiece is produced in the barrel, characterized in that the pipe (2) lead before the outward via the mandrel (3) onto a conical extension piece (3 ') and another cylindrical one Extension piece (3 ") at the front end of the dome (3) without relative displacement between the mandrel (3) and pipe (2) is hammered. In Betracht gezogene Druckschriften:
Deutsche Patentschriften Nr. 126 578, 48 101;
französische Patentschrift Nr. 518 136;
USA.-Patentschrift Nr. 2104 319.
Considered publications:
German Patent Nos. 126 578, 48 101;
French Patent No. 518 136;
U.S. Patent No. 2104,319.
Hierzu 1 Blatt Zeichnungen1 sheet of drawings © 809· 770/283 3. 59© 809 770/283 3. 59
DEA29460A 1941-11-26 1941-11-26 Method for producing firearm barrels with a smooth, conically widening muzzle piece on a hammering machine Pending DE1053288B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEA29460A DE1053288B (en) 1941-11-26 1941-11-26 Method for producing firearm barrels with a smooth, conically widening muzzle piece on a hammering machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEA29460A DE1053288B (en) 1941-11-26 1941-11-26 Method for producing firearm barrels with a smooth, conically widening muzzle piece on a hammering machine

Publications (1)

Publication Number Publication Date
DE1053288B true DE1053288B (en) 1959-03-19

Family

ID=6926932

Family Applications (1)

Application Number Title Priority Date Filing Date
DEA29460A Pending DE1053288B (en) 1941-11-26 1941-11-26 Method for producing firearm barrels with a smooth, conically widening muzzle piece on a hammering machine

Country Status (1)

Country Link
DE (1) DE1053288B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5155291A (en) * 1991-10-24 1992-10-13 O. F. Mossberg & Sons Inc. Barrel assembly for home security weapon

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE48101C (en) * G. BUSER in Gelterkinden, Schweiz Firearm tubes with trains of different cross-sections
DE126578C (en) *
FR518136A (en) * 1918-03-27 1921-05-19 Ternitzer Stahl Und Eisenwerke Method and device for obtaining scratches in tubes
US2104319A (en) * 1934-02-10 1938-01-04 Remington Arms Co Inc Manufacture of rifled tubes

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE48101C (en) * G. BUSER in Gelterkinden, Schweiz Firearm tubes with trains of different cross-sections
DE126578C (en) *
FR518136A (en) * 1918-03-27 1921-05-19 Ternitzer Stahl Und Eisenwerke Method and device for obtaining scratches in tubes
US2104319A (en) * 1934-02-10 1938-01-04 Remington Arms Co Inc Manufacture of rifled tubes

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5155291A (en) * 1991-10-24 1992-10-13 O. F. Mossberg & Sons Inc. Barrel assembly for home security weapon

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