DE390040C - Process for the production of roller sleeves for roller chains - Google Patents

Process for the production of roller sleeves for roller chains

Info

Publication number
DE390040C
DE390040C DESCH62292D DESC062292D DE390040C DE 390040 C DE390040 C DE 390040C DE SCH62292 D DESCH62292 D DE SCH62292D DE SC062292 D DESC062292 D DE SC062292D DE 390040 C DE390040 C DE 390040C
Authority
DE
Germany
Prior art keywords
roller
sleeves
production
chains
strip
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
DESCH62292D
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
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 Individual filed Critical Individual
Priority to DESCH62292D priority Critical patent/DE390040C/en
Application granted granted Critical
Publication of DE390040C publication Critical patent/DE390040C/en
Expired legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23PMETAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P15/00Making specific metal objects by operations not covered by a single other subclass or a group in this subclass

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Registering, Tensioning, Guiding Webs, And Rollers Therefor (AREA)

Description

Rollhülsen für Rollketten (insbesondere Fahrradketten) verlangen eine sehr genaue Bearbeitung; insbesondere müssen die Wandungen innen und außen bis zum Ende genau zylindrisch sein und die Stirnflächen sich als genaue Ringebenen rechtwinklig an die zylindrischen Wandungen ansetzen. Außerdem sind die vorgeschriebenen Abmessungen genau einzuhalten. AVegen dieser unerläßlichenRoll sleeves for roll chains (especially bicycle chains) require a very precise Editing; in particular, the walls inside and outside must be accurate to the end be cylindrical and the end faces as exact ring planes at right angles to the cylindrical Attach walls. In addition, the prescribed dimensions must be strictly adhered to. AVefore this indispensable

ίο Genauigkeit hat man bisher die Rollhülsen aus dem Vollen herausgearbeitet, obwohl diese Herstellung sehr kostspielig ist.ίο Accuracy has so far been the roll sleeves Carved out of the solid, although this production is very expensive.

Die Herstellung von Hülsen läßt sich zwar dadurch verbilligen, daß diese aus einem fortlaufenden Streifen gezogen und ausgestanzt werden, wie es an sich bekannt ist. Mit Rücksicht auf die verlangte Genauigkeit ist ein . solches Ziehverfahren bei der Herstellung von Rollhülsen für Rollketten noch nicht benutzt worden. Es ist auch nicht ohne weiteres anwendbar, weil, selbst bei genauem Ziehen des Hauptteiles der zylindrischen Wandungen, die Übergänge zu den Stirnflächen und diese selbst durch das Abtrennen der Hülse vom Streifen sowie durch das Abtrennen des Bodens der gezogenen Kapseln ungenau werden müssen. Der Erfindung gemäß wird nun das billige Ziehverfahren auch bei Rollhülsen dadurch ermöglicht, daß die Hülsen in an sich bekannter Weise aus dem Streifen gezogen, dann, während sie noch an dem Streifen sitzen, an den Stirnflächen gefräst und schließlich ausgestanzt werden. Das Fräsen der Stirnflächen ergibt völlig ebene Ringflächen, die sich genau rechtwinklig an die zylindrisehen Flächen der Hülse ansetzen, da diese gefräst wird, während sie sich noch am Streifen befindet.The production of sleeves can be made cheaper by the fact that they consist of a continuous Strips are drawn and punched out as is known per se. With consideration to the required accuracy is a. such drawing process in the manufacture of Roll sleeves for roll chains have not yet been used. It is also not easily applicable, because, even if the main part of the cylindrical walls is drawn precisely, the transitions to the end faces and these themselves by separating the sleeve from the Stripes as well as the separation of the bottom of the drawn capsules become inaccurate have to. According to the invention, the cheap drawing process is now also used in the case of roller sleeves enables the sleeves to be pulled out of the strip in a manner known per se, then, while they are still on the strip, milled on the end faces and finally be punched out. Milling the end faces results in completely flat ring surfaces, which are positioned exactly at right angles to the cylindrical surfaces of the sleeve, as these is milled while it is still on the strip.

Das Verfahren kann z. B. auf folgende Weise durchgeführt werden. Auf einer Ziehpresse werden in bekannter Weise aus einem Streifen fortlaufend kapseiförmige Körper mit zylindrischer Wandung gezogen und an diesen die Böden durch Lochung entfernt. Die Streifen mit den daran sitzenden Hülsen werden dann im selben oder auch in einem besonderen Arbeitsgange in einer Fräsvorrichtung behandelt, die den Stoff an den Stirnenden der Hülsen fortnimmt und die Stirnflächen genau herausarbeitet, und zwar mindestens an einem Hülsenende. In demselben Arbeitsgang kann dann das völlige Ausstanzen der noch mit dem Streifen zusammenhängenden Hülsen erfolgen.The method can e.g. B. be carried out in the following manner. On a drawing press capsule-shaped bodies with cylindrical walls are continuously drawn from a strip in a known manner and attached these the bottoms are removed by perforation. The strips with the pods attached to them will be then in the same or in a special operation in a milling device treated, which takes away the fabric at the ends of the sleeves and the end faces worked out exactly, at least at one end of the sleeve. In the same operation can then completely punch out the sleeves that are still connected to the strip take place.

Claims (1)

PATENT-A NSPRUCH:PATENT APPLICATION: Verfahren zur Herstellung von Rollhülsen für Rollenketten (insbesondere Fahrradketten) aus einem fortlaufenden Streifen, dadurch gekennzeichnet, daß die Hülsen in an sich bekannter Weise aus dem Streifen gezogen, dann, während sie noch am Streifen sitzen, an den Stirnflächen gefräst und schließlich ausgestanzt werden.Process for the production of roller sleeves for roller chains (in particular Bicycle chains) from a continuous strip, characterized in that the Sleeves pulled out of the strip in a manner known per se, then, while they are still sitting on the strip, on the end faces milled and finally punched out.
DESCH62292D 1921-07-12 1921-07-12 Process for the production of roller sleeves for roller chains Expired DE390040C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DESCH62292D DE390040C (en) 1921-07-12 1921-07-12 Process for the production of roller sleeves for roller chains

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DESCH62292D DE390040C (en) 1921-07-12 1921-07-12 Process for the production of roller sleeves for roller chains

Publications (1)

Publication Number Publication Date
DE390040C true DE390040C (en) 1924-02-12

Family

ID=7437681

Family Applications (1)

Application Number Title Priority Date Filing Date
DESCH62292D Expired DE390040C (en) 1921-07-12 1921-07-12 Process for the production of roller sleeves for roller chains

Country Status (1)

Country Link
DE (1) DE390040C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008009260A1 (en) * 2006-07-21 2008-01-24 Schaeffler Kg Method for producing rollers and/or bushings for chains

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008009260A1 (en) * 2006-07-21 2008-01-24 Schaeffler Kg Method for producing rollers and/or bushings for chains
US7472538B2 (en) 2006-07-21 2009-01-06 Schaeffler Kg Method for producing rollers and sleeves for chains

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