AT7879B - Device for milling balls. - Google Patents

Device for milling balls.

Info

Publication number
AT7879B
AT7879B AT7879DA AT7879B AT 7879 B AT7879 B AT 7879B AT 7879D A AT7879D A AT 7879DA AT 7879 B AT7879 B AT 7879B
Authority
AT
Austria
Prior art keywords
milling cutter
ball
lathe
spherical surface
milling
Prior art date
Application number
Other languages
German (de)
Inventor
Franz Jirat
Original Assignee
Franz Jirat
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 Franz Jirat filed Critical Franz Jirat
Application granted granted Critical
Publication of AT7879B publication Critical patent/AT7879B/en

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  • Turning (AREA)
  • Auxiliary Devices For Machine Tools (AREA)

Description

  

   <Desc/Clms Page number 1> 
 



  FRANZ JIRAT iN   NEÜHÜTTEN (BÖHMEN).   



   Vorrichtung zum Fräsen von Kugeln. 
 EMI1.1 
 kugelförmigen Gegenstand in   mathematisch   genauer Kugelform herzustellen ermöglicht. 



   Die Vorrichtung selbst, welche an dem Messersupporte jeder Drehbank angebracht werde kann, besteht aus einem   röhrenförmigen   Fräser a, welcher auf einem Körner b aufgeschraubt ist, so dass er sich mit letzterem um seine Spitze c leicht drehen kann. 



   Die Achse der Vorrichtung steht zu der Achse der Drehbank in einem Winkel von ca. 450 (Fig.   4).   Zur rohen Bearbeitung der Kugel k benützt man einen verzahnten Fräser (Fig. 1 und 2), während das Polieren der Kugel durch die scharfe Kante eines unver-   zahnton   Fräsers vollzogen wird. (Fig. 3.)
Um Kugeln von   verschiedenem   Radius herstellen zu können, ist der Körner b mit 
 EMI1.2 
 Schraubenmutter e nach Bedarf eingestellt werden kann. (Fig. 1 und 3.)
Die Drehung der Kugel k bewirkt ein in die Planscheibe eingespannter hölzerner Mitnehmer   m.     Nachdem   die Kugel von einer Seite durch den Mitnehmer m, von der anderen durch den Fräser a selbst gehalten wird, so ist sie vor dem Herausfallen gehindert.

   Durch die lteibung zwischen dom   Mitnehmer M   und der Kugel   k   ist letztere zur. rotierenden Bewegung gezwungen, welche Bewegung auch dem Fräser a mitgetheilt wird. 



   Nachdem die Achsen des Mitnehmers und des Fräsers einen scharfen Winkel x 
 EMI1.3 
 sphärische Curve beschreibt, welche einen constanten   Krümmungsradius   hat und deren Mittelpunkt mit dem Mittelpunkte der Kugel   übereinstimmt.   



     Durch den \orerwähnten   Umstand   kommt   nach und nach die ganze Kugeloberfläche mit der Schneide des Fräsers in Berührung, wodurch eine genaue Kugelform hergestellt wird. 

**WARNUNG** Ende DESC Feld kannt Anfang CLMS uberlappen**.



   <Desc / Clms Page number 1>
 



  FRANZ JIRAT IN NEÜHÜTTEN (BOHEMIA).



   Device for milling balls.
 EMI1.1
 allows to produce spherical object in mathematically precise spherical shape.



   The device itself, which can be attached to the knife support of every lathe, consists of a tubular milling cutter a, which is screwed onto a center punch b so that it can easily rotate with the latter around its tip c.



   The axis of the device is at an angle of approximately 450 to the axis of the lathe (Fig. 4). A toothed milling cutter is used for rough machining of the ball k (FIGS. 1 and 2), while the polishing of the ball is carried out using the sharp edge of a non-toothed milling cutter. (Fig. 3.)
In order to be able to produce balls of different radius, the grain b is with
 EMI1.2
 Screw nut e can be adjusted as required. (Fig. 1 and 3.)
The rotation of the ball k is caused by a wooden driver m clamped in the faceplate. After the ball is held from one side by the driver m and from the other by the milling cutter a itself, it is prevented from falling out.

   Due to the friction between the dome driver M and the ball k, the latter is for. forced rotating movement, which movement is communicated to the cutter a.



   After the axes of the driver and the milling cutter have a sharp angle x
 EMI1.3
 spherical curve describes which has a constant radius of curvature and whose center coincides with the center of the sphere.



     Due to the aforementioned circumstance, the entire spherical surface gradually comes into contact with the cutting edge of the milling cutter, whereby an exact spherical shape is produced.

** WARNING ** End of DESC field may overlap beginning of CLMS **.

 

Claims (1)

PATENT-ANSPRUCH : Vorrichtung zum Fräsen von Kugeln, gekennzeichnet durch einen. am Messersupportc einer drehbank in einem Winkel Non ca. 450 zu der Drehbankachse leicht um seine Achse drehbar angeordneten röhrenförmigen Fräser a, welcher bei der Drehung des in die Planscheibe eingespannten hölzernen Mitnehmers 111 und der durch Reibung mitgenommenen Kugel k in Rotation versetzt wird, so dass jeder Punkt der Kugeloberfläche eine sphärische Curve beschreibt, wodurch nach und nach die ganze Kugeloberfläche mit den FräserschneidenselbstinBerührungkommt. **WARNUNG** Ende CLMS Feld Kannt Anfang DESC uberlappen**. PATENT CLAIM: Device for milling balls, characterized by a. on the knife supportc of a lathe at an angle Non approx. 450 to the lathe axis slightly rotatable tubular milling cutter a, which is set in rotation when the wooden driver 111 clamped in the face plate and the ball k driven by friction, so that every point of the spherical surface describes a spherical curve, whereby the entire spherical surface gradually comes into contact with the milling cutter itself. ** WARNING ** End of CLMS field may overlap beginning of DESC **.
AT7879D 1901-06-15 1901-06-15 Device for milling balls. AT7879B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT7879T 1901-06-15

Publications (1)

Publication Number Publication Date
AT7879B true AT7879B (en) 1902-06-10

Family

ID=3499745

Family Applications (1)

Application Number Title Priority Date Filing Date
AT7879D AT7879B (en) 1901-06-15 1901-06-15 Device for milling balls.

Country Status (1)

Country Link
AT (1) AT7879B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1267938B (en) * 1962-08-23 1968-05-09 Thompson Ramo Wooldridge Inc Cutting tool for machining spherical surfaces
DE19539465A1 (en) * 1995-10-24 1997-04-30 Tetra Laval Holdings & Finance Vertical form, fill and seal process for the manufacture of plastic packaging

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1267938B (en) * 1962-08-23 1968-05-09 Thompson Ramo Wooldridge Inc Cutting tool for machining spherical surfaces
DE19539465A1 (en) * 1995-10-24 1997-04-30 Tetra Laval Holdings & Finance Vertical form, fill and seal process for the manufacture of plastic packaging

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