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DE581813C - Vaulted work piece grinding bowl, especially for grinding meniscus-shaped glasses - Google Patents

Vaulted work piece grinding bowl, especially for grinding meniscus-shaped glasses

Info

Publication number
DE581813C
DE581813C DEM122639D DEM0122639D DE581813C DE 581813 C DE581813 C DE 581813C DE M122639 D DEM122639 D DE M122639D DE M0122639 D DEM0122639 D DE M0122639D DE 581813 C DE581813 C DE 581813C
Authority
DE
Germany
Prior art keywords
grinding
meniscus
bowl
vaulted
work piece
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
DEM122639D
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.)
FRANZ MEHWALD
Original Assignee
FRANZ MEHWALD
Publication date
Priority to DEM122639D priority Critical patent/DE581813C/en
Application granted granted Critical
Publication of DE581813C publication Critical patent/DE581813C/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B13/00—Machines or devices designed for grinding or polishing optical surfaces on lenses or surfaces of similar shape on other work; Accessories therefor
    • B24B13/01—Specific tools, e.g. bowl-like; Production, dressing or fastening of these tools

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)

Description

58181S58181S

Werkstückschleifschalen mit tiefen Einschnitten sind bekannt. Dieselben haben den Vorteil, daß durch diese Einschnitte ein Befeuchten der am höchsten Punkt der Schleifschale liegenden Gläser mit Schleifmasse möglich ist, wodurch ein Festbrennen vermieden wird. Die zur Erfindung vorliegende Werkstückschleifschale ist gewölbt; sie dient zum Schleifen aller gebogenen konvexen und konkaven Brillengläser und Linsen. Dieselbe zeigt drei oder mehr Lappen, welche durch tiefe Einschnitte (radial gerichtete Schlitze) getrennt sind. Die Schleifschale hat durchgängig 'eine gleiche Wandstärke. Die Krümmung der Schale ist zur 'einzuschleifenden Kugelfläche konzentrisch. Die Lappen sind ebenfalls gewölbt, aber etwas flacher, so· daß sie konzentrisch zur Kugelfläche der Grundkrümmung beiderseits gewölbt sind. Der in der Mitte der Schleifschale befindliche "Nocken hat ein zentrales Gewinde, welches ein Einschrauben desselben auf beiden Seiten der Schale ermöglicht. Dieser Drehnocken dient als Lager für den Führungsstift, wodurch die Verwendbarkeit der Schale auf beiden Seiten gegeben ist, um Konvex- oder Konkavgläser zu schleifen.Workpiece grinding bowls with deep cuts are known. The same have the advantage that wetting through these incisions the glasses with grinding compound at the highest point of the grinding bowl which avoids sticking. The present workpiece grinding bowl for the invention is arched; it is used for grinding all curved convex and concave Spectacle glasses and lenses. It shows three or more lobes, which go through deep Incisions (radially directed slots) are separated. The grinding bowl has 'one' throughout same wall thickness. The curvature of the shell is towards the 'spherical surface to be ground concentric. The lobes are also curved, but somewhat flatter, so that they are concentric are curved on both sides to the spherical surface of the basic curvature. The one in the middle of the "Cam located on the grinding cup has a central thread which allows it to be screwed in on both sides of the shell. This rotary cam serves as a bearing for the guide pin, which makes it usable the bowl is given on both sides for grinding convex or concave glasses.

Von großem Vorteil ist die sich selbst ergebende gleiche Kittschichtstärke auf der Werkstückschale, wodurch ein genaues zentrisches und zerrungsfreies Schleifen der Gläser möglich ist.The self-resulting equal putty thickness on the is of great advantage Workpiece tray, which enables precise, centric and distortion-free grinding of the glasses is possible.

Claims (1)

Patentanspruch :Claim: Gewölbte Werkstückschleifschale, insonderheit zum Schleifen meniskenförmiger Brillengläser, mit durch radial gerichtete Schlitze getrennten Lappen für die einzelnen Linsen (Kleeblattform.), dadurch gekennzeichnet, daß die allgemeine Krümmung der in gleicher Wandstärke hergestellten Schale zur einzuschleifenden Kugelfläche konzentrisch ist, die einzelnen gewölbten Lappen aber etwas flacher, und zwar konzentrisch zur Kugelfläche der Grundkrümmung beiderseits gewölbt sind, und daß der Nocken für den Führungsstift von beiden Seiten in ein zentrales Gewinde ^eingeschraubt werden kann, so daß einerseits 'eine gleichmäßige Kittschichtstärke entsteht, anderseits dieselbe Schleifschale für konvexe und konkave Gläser verwendbar ist.Arched workpiece grinding bowl, especially for grinding meniscus-shaped Spectacle lenses with flaps separated by radially directed slits for the individual Lentils (clover leaf shape.), Characterized in that the general curvature the shell made with the same wall thickness to the spherical surface to be ground is concentric, but the individual curved lobes are somewhat flatter, concentric to the spherical surface of the Base curvature are arched on both sides, and that the cam for the guide pin from both sides into a central one Thread ^ can be screwed in, so that on the one hand 'a uniform layer of cement arises, on the other hand, the same grinding bowl can be used for convex and concave glasses. Hierzu 1 Blatt Zeichnungen1 sheet of drawings
DEM122639D Vaulted work piece grinding bowl, especially for grinding meniscus-shaped glasses Expired DE581813C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEM122639D DE581813C (en) Vaulted work piece grinding bowl, especially for grinding meniscus-shaped glasses

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEM122639D DE581813C (en) Vaulted work piece grinding bowl, especially for grinding meniscus-shaped glasses

Publications (1)

Publication Number Publication Date
DE581813C true DE581813C (en) 1933-10-19

Family

ID=7330104

Family Applications (1)

Application Number Title Priority Date Filing Date
DEM122639D Expired DE581813C (en) Vaulted work piece grinding bowl, especially for grinding meniscus-shaped glasses

Country Status (1)

Country Link
DE (1) DE581813C (en)

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