AT40248B - Device for grinding out and polishing wire drawing dies. - Google Patents

Device for grinding out and polishing wire drawing dies.

Info

Publication number
AT40248B
AT40248B AT40248DA AT40248B AT 40248 B AT40248 B AT 40248B AT 40248D A AT40248D A AT 40248DA AT 40248 B AT40248 B AT 40248B
Authority
AT
Austria
Prior art keywords
grinding
wire drawing
stone
drawing dies
grinding out
Prior art date
Application number
Other languages
German (de)
Original Assignee
Schmidmer & Co Dr
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 Schmidmer & Co Dr filed Critical Schmidmer & Co Dr
Application granted granted Critical
Publication of AT40248B publication Critical patent/AT40248B/en

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  • Grinding Of Cylindrical And Plane Surfaces (AREA)

Description

  

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   Das Ausschleifen und Polieren der Bohrungen von Diamantziehsteinen, wie sie zum Ziehen feiner Drähte verwendet werden, erfolgte bisher mittels   einer in das Steinloch eingeführten, mit   ihrem freien Ende die Steinbohrung durchsetzenden Stahlnadel die mit der Hand in die Bohrung gedrückt wird   oder in einem   vor der Steinplatte liegenden Gestell eingespannt ist und während der Drehung der den Stein tragenden Platte gegen sie verstellt wird.

   Diesen Vorrichtungen haftet der Mangel an, dass das freie Ende der Schleifnadel den beim Ausschwenken der Nadel wirksamen Beanspruchungen nicht standhält, so dass zum Ausschleifen der hinteren Kanten der Stein- 
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 Einspannung der Schleifnadel bedingt ferner nur eine geringe Länge des wirksamen Teiles der Stahlnadel, womit der weitere Nachteil verknüpft ist, dass der kurze   Schleifstahl einer raschen   Abnützung unterworfen ist. 



   Die   Erfindung bezweckt, diese Nachteile zu beheben und   das Ausschleifen der   Steinbohrung   in   einem     Arbeitsvorgang dadurch zu bewirken, dass das Schleifwerkzeug durch   einen durch die   Steinbohrung hindurchgesteckten, zu beiden Seiten der den Stein tragenden Platte eingespannten   Draht gebildet ist, der beim Schleifvorgang in der Bohrung des Ziehsteines hin- und herbewegt wird, während die sich drehende Steinplatte gleichzeitig um eine lotrechte Achse Schwingungen   ausführt   und sieh dabei derart schräg zum Schleifdraht einstellt,   dass die Kanten des Bohrloches   in   einem   und demselben Arbeitsgange durch den Schleifdraht abgeschliffen werden. 



   Eine in dieser Weise eingerichtete Vorrichtung ist in den Fig. 1 und 2 in einer   Ausführun. gs-   
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 Ansatz 6   verseliene. konische hohle Spindel   7 sitzt. Auf dieser ist die Schnurlaufbüchse 8, an deren vorderer   Stirnfläche die den Ziehstein   9 enthaltende   Metallplatte. M durch Ankitten   oder in sonst   geeigneter Weise befestigt ist, lose drehbar angeordnet   ; sie wird durch Anschläge 11 in ihrer Lage gesichert, die mit dem Tisch 2 verbunden sind. Auf   der am Tisch   2 sowohl nach der 
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   änder, werden.   



   Um den Draht 23 bezw. den ihn haltenden Bügel 13, 14, 15 in hin-und hergehende Be- 
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   The grinding and polishing of the bores of diamond drawing stones, as they are used for drawing fine wires, has so far been done by means of a steel needle inserted into the stone hole with its free end penetrating the stone hole, which is pressed into the hole by hand or in one in front of the stone slab lying frame is clamped and is adjusted against them during the rotation of the plate carrying the stone.

   The problem with these devices is that the free end of the grinding needle cannot withstand the stresses that are effective when the needle is swiveled out, so that for grinding out the rear edges of the stone
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 Clamping the grinding needle also requires only a short length of the effective part of the steel needle, which is associated with the further disadvantage that the short grinding steel is subject to rapid wear.



   The aim of the invention is to remedy these disadvantages and to grind out the stone bore in one operation in that the grinding tool is formed by a wire that is inserted through the stone bore and clamped on both sides of the plate carrying the stone, which is in the bore of the during the grinding process The drawing die is moved back and forth while the rotating stone plate simultaneously oscillates around a vertical axis and is set at an angle to the grinding wire in such a way that the edges of the drill hole are ground off in one and the same operation by the grinding wire.



   A device set up in this way is shown in FIGS. 1 and 2 in one embodiment. gs-
 EMI1.3
 Approach 6 verseliene. conical hollow spindle 7 is seated. On this is the line bushing 8, on whose front face the metal plate containing the drawing die 9. M is attached by anchoring or in any other suitable manner, loosely rotatably arranged; it is secured in its position by stops 11 which are connected to the table 2. On the at table 2 both after the
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   change, become.



   To the wire 23 respectively. the bracket 13, 14, 15 holding it in to and fro
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AT40248D 1908-12-09 1908-12-09 Device for grinding out and polishing wire drawing dies. AT40248B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT40248T 1908-12-09

Publications (1)

Publication Number Publication Date
AT40248B true AT40248B (en) 1909-12-27

Family

ID=3558630

Family Applications (1)

Application Number Title Priority Date Filing Date
AT40248D AT40248B (en) 1908-12-09 1908-12-09 Device for grinding out and polishing wire drawing dies.

Country Status (1)

Country Link
AT (1) AT40248B (en)

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