AT78072B - Device for determining screws and threads by lateral scanning of the thread tension. - Google Patents

Device for determining screws and threads by lateral scanning of the thread tension.

Info

Publication number
AT78072B
AT78072B AT78072DA AT78072B AT 78072 B AT78072 B AT 78072B AT 78072D A AT78072D A AT 78072DA AT 78072 B AT78072 B AT 78072B
Authority
AT
Austria
Prior art keywords
screws
threads
determining
thread tension
lateral scanning
Prior art date
Application number
Other languages
German (de)
Inventor
Andre Bechler
Original Assignee
Andre Bechler
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 Andre Bechler filed Critical Andre Bechler
Application granted granted Critical
Publication of AT78072B publication Critical patent/AT78072B/en

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  • Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)

Description

  

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 und von einer Furche G des Gewindezuges. 



    Hieraus ergibt sich für die Messung von Schrauben verschiedener Durchmesser die Notwendigkeit, für jede Dimension des EU bestimmenden Gewindezuges einen Satz entsprechender   
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 gleichen Durchmessers und diese Verlängerung kommt in einem Träger c derart zu liegen, dass das Prisma a sich in dem Träger drehen uLd sich parallel den Tangentialebenen der Fläche des Gewindezuges in   A   und B einstellen kann. Die kleinen Prismen eines gleichen Satzes sind also auswechselbar, damit sie leicht gegen andere umgetauscht werden können, wenn man Schrauben verschiedener Durchmesser zu bestimmen hat. Sie sind auch in ihrem Träger auswechselbar, welcher nach der Achse X Y der Verlängerungen b der Prismen beweglich ist.

   Eine in der Zeichnung nicht dargestellte Messeinrichtung gestattet, genau den Abstand zu bestimmen, der 
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 einander und infolge dessen praktisch auch den mittleren Durchmesser des Gewindezuges. 



  Es muss hier gesagt weiden, dass das Messungsergebnis nicht mathematisch genau dem mittleren Durchmesser der gemessenen Schraube entspricht, weil die   Schraubenachse   nicht senkrecht auf die Achse X Y fällt (siehe Fig. 2). Dies hat aber keine Bedeutung. Man prüft mit dem Instrument Lehrschrauben, die als Typen zuerst gemessen werden. Dabei wird der gleiche Fehler gemacht, so dass das Endergebnis, das darauf zielt, zu   piüfen,   ob eine Schraube einer anderen genau gleich ist, erreicht wird. 
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 beide verschieden gestaltet sind. Mit dieser letzteren   BauaJt   wild die Schraubenachse während   der Messungen senkrecht zur Achse-Y   Y gestellt. 



   Alle diese Ausführungsformen des Prismas   tragen auch dfn zylindrischen   Zapfen h und in allen diesen Fällen vollzieht sich der Kontakt mit dem   Gewihdezug nur   an zwei Punkten, welche   ungefähr   in der Mitte des Gewindezuges liegen. 
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 and from a groove G of the thread train.



    This results in the need for the measurement of screws of different diameters to have a corresponding set of threads for each dimension of the EU determining thread
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 of the same diameter and this extension comes to lie in a carrier c in such a way that the prism a can rotate in the carrier uLd can be set parallel to the tangential planes of the surface of the thread train in A and B. The small prisms of the same set are interchangeable so that they can easily be exchanged for others if you have to determine screws of different diameters. They can also be exchanged in their carrier, which is movable along the axis X Y of the extensions b of the prisms.

   A measuring device not shown in the drawing allows the exact distance to be determined
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 each other and as a result practically the mean diameter of the thread train.



  It must be said here that the measurement result does not correspond mathematically exactly to the mean diameter of the measured screw, because the screw axis does not fall perpendicular to the axis XY (see FIG. 2). But this has no meaning. The instrument is used to test gauge screws, which are the types that are measured first. The same mistake is made here, so that the end result, which aims to check whether one screw is exactly the same as another, is achieved.
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 both are designed differently. With this latter construction, the screw axis is placed perpendicular to the axis-YY during the measurements.



   All these embodiments of the prism also have cylindrical pegs h and in all of these cases the contact with the thread tension is only made at two points which are approximately in the middle of the thread tension.
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Claims (1)

erfolgt, und zwar lediglich auf zwei Erzeugenden des Prismas. $welche mit der Achse des Zapfens einen Winkel von 9 (j' bilden. takes place, namely only on two generators of the prism. $ which form an angle of 9 (j 'with the axis of the pin.
AT78072D 1917-08-25 1917-08-25 Device for determining screws and threads by lateral scanning of the thread tension. AT78072B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT78072T 1917-08-25

Publications (1)

Publication Number Publication Date
AT78072B true AT78072B (en) 1919-09-10

Family

ID=3599636

Family Applications (1)

Application Number Title Priority Date Filing Date
AT78072D AT78072B (en) 1917-08-25 1917-08-25 Device for determining screws and threads by lateral scanning of the thread tension.

Country Status (1)

Country Link
AT (1) AT78072B (en)

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