DE485937C - Swiveling around an axis perpendicular to the workpiece spindle axis and adjustable according to a scale double holder on machines for grinding the facets of real and fake gemstones - Google Patents

Swiveling around an axis perpendicular to the workpiece spindle axis and adjustable according to a scale double holder on machines for grinding the facets of real and fake gemstones

Info

Publication number
DE485937C
DE485937C DEM104293D DEM0104293D DE485937C DE 485937 C DE485937 C DE 485937C DE M104293 D DEM104293 D DE M104293D DE M0104293 D DEM0104293 D DE M0104293D DE 485937 C DE485937 C DE 485937C
Authority
DE
Germany
Prior art keywords
facets
workpiece spindle
grinding
gemstones
fake
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
DEM104293D
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.)
MORITZ HARNISCH
Original Assignee
MORITZ HARNISCH
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 MORITZ HARNISCH filed Critical MORITZ HARNISCH
Priority to DEM104293D priority Critical patent/DE485937C/en
Application granted granted Critical
Publication of DE485937C publication Critical patent/DE485937C/en
Expired legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B24GRINDING; POLISHING
    • B24BMACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B9/00Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor
    • B24B9/02Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground
    • B24B9/06Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground of non-metallic inorganic material, e.g. stone, ceramics, porcelain
    • B24B9/16Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground of non-metallic inorganic material, e.g. stone, ceramics, porcelain of diamonds; of jewels or the like; Diamond grinders' dops; Dop holders or tongs

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Grinding Of Cylindrical And Plane Surfaces (AREA)

Description

Um eine zur Werkstückspindelachse senkrechte Achse schwingbarer und nach einer Skala einstellbarer Doppenhalter an Maschinen zum Schleifen der Facetten an echte und unechte Edelsteine Die Erfindung betrifft eine Vorrichtung zum Schleifen von Facetten, verschiedener Kränze an echte und unechte Edelsteine o.. dgl., bei der :ein um eine zur Werkstückspindelachse senkrechte Achse schwingbarer und nach einer Skala einstellbarer Doppenhalter angeordnet ist. Die Erfindung besteht darin, daß die Feststellteig der Drehlage der Doppe durch ein der Faoettenzahl ,eines Kranzes entsprechend vielkantiges Teilstück erfolgt, in den es mit einer seiner Flächen auf einem kreissegmentförmigen ebenen Gleitstück in jeder der einzelnen Facettenkränzen entsprechenden Schwenklage aufliegt und daß die Versetzung der einzelnen benachbarten Facettenkränze gegeneinander durch Verdrehen der Werkstückspindel in der das Teilstück tragenden Büchse nach Maßgabe einer Teilungsvorrichtung an sch bekannter Art erfolgt. Es wird dadurch erreicht, mit einfachsten Mitteln die Arretierung der Drehlage der Werkstückspindel in allen Schwenklagen herbeizuführen. In der Zeichnung ist der Erfindungsgegenstand in einer Ausführungsform dargestellt.Swiveling around an axis perpendicular to the workpiece spindle axis and Double holder adjustable according to a scale on machines for grinding the facets on real and fake gemstones The invention relates to a device for grinding of facets, different wreaths of real and fake gemstones or the like der: an axis that can swing and move around an axis perpendicular to the workpiece spindle axis a scale adjustable double holder is arranged. The invention consists in that the fixing dough of the rotational position of the double by one of the number of faoettes, a wreath accordingly polygonal section takes place in which it is with one of its surfaces on a circular segment-shaped flat slide in each of the individual facet rings corresponding pivot position and that the displacement of the individual adjacent Facet wreaths against each other by turning the workpiece spindle in which the section bearing sleeve takes place in accordance with a dividing device on sch known type. It is achieved with the simplest means to lock the rotational position of the To bring about the workpiece spindle in all swivel positions. In the drawing is the Subject matter of the invention shown in one embodiment.

Abb. i ist der Grundrß der Vorrichtung; Abb. z, 3 und 5 stellen Einzelteile dar, während Abb. q. die Seitenansicht der Vorrichtung zeigt. Auf einer -Werkstückspindel i ist eine Büchse q. angebracht, die an ihrem oberen Teil mit einem Flansch q# versehen ist, dessen Umfang ein gleichseitiges Vieleck darstellt, dessen. Eckenzahl gleich der Zahl der an jeden Kranz zu schleifenden Facetten ist. In der Stirnfläche des Flansches sind öffnungen 3, 5 angebracht, in die ein Stift 31 an der Werkstückspindel eingreifen kann. Das obere Ende der Werkstückspindel besitzt einen Konus, auf den der Werkstückhalter 6 aufgesetzt und mittels Stellring 8 gehalten ist. Das untere Ende der Spindel, das in eine Spitze a ausläuft, greift mit dieser Spitze in die öffnungen 12 eines kreisbogenförnügen Bügels i i ein. Der Bügel zeigt so viel öffnungen, wie Facettenkränze an das Werkstück angeschliffen werden sollen. Im Innern der Büchse q., "deren Bewegtang nach unten durch einen Stellring io begrenzt ist, ist eine Feder 9 angeordnet, die die öffnungen 3, 5 an dem Stift 31 hält. Die ebenen, den Flansch ¢1 begrenzenden Flächen liegen an einer Führung 13 an, die das Werkstück in der einmal eingenommenen Drehlage festhält. Das Führungsstück 13 ist mit dem kreisbogenförmigen Kranz i i verbunden und ist um die Achse i q. mittels Stellschraubie i 5 drehbar angeordnet. Die Stellung der Schleifscheibe 16 ist unveränderlich. Ihr Antrieb erfolgt mittels Elektromotor 17, Schnurscheaiibe, o. dgl. Um ein Erhitzen des Werkstückes beim Schleifen zu verhindern, ist eine Zuführungsvorrichtung 18 für :eine Kühlflüssigkeit vorgesehen. Sollen größere Facettenflächen geschliffen werden, so bedient man sich eines gespaltenen Fassungsringes i 9 (Abt. 5). Derselbe wird durch eitre Spannhülse 2o mittels Druckfeder 21 und Stellring 22 auf der Werkstückspindel i festgehalten.Fig. I is the layout of the device; Fig. Z, 3 and 5 represent individual parts while Fig. q. shows the side view of the device. On a workpiece spindle i is a can q. attached, which are provided with a flange q # on their upper part is, whose perimeter is an equilateral polygon, whose. Number of corners is the same is the number of facets to be cut on each wreath. In the face of the Flange openings 3, 5 are attached, in which a pin 31 on the workpiece spindle can intervene. The upper end of the workpiece spindle has a cone on which the workpiece holder 6 is placed and held by means of the adjusting ring 8. The lower The end of the spindle, which ends in a point a, engages with this point in the openings 12 of a circular arc-shaped bracket i i a. The temple shows so many openings how facet wreaths should be ground to the workpiece. Inside the can q., "whose moving tang is limited downwards by an adjusting ring io, is a Spring 9 is arranged, which holds the openings 3, 5 on the pin 31. The levels, the Flange [1] delimiting surfaces rest on a guide 13, which the workpiece holds in the once assumed rotational position. The guide piece 13 is with the circular arc-shaped wreath i i connected and is about the axis i q. by means of adjusting screw i 5 rotatably arranged. The position of the grinding wheel 16 cannot be changed. you drive takes place by means of an electric motor 17, a pulley, or the like. In order to prevent the workpiece from heating up during grinding, there is a feeding device 18 intended for: a coolant. Should larger facet surfaces be ground one uses a split socket ring i 9 (section 5). Same is by means of a clamping sleeve 2o by means of compression spring 21 and adjusting ring 22 on the workpiece spindle i held on.

Die Wirkungsweise der Vorrichtung ist folgende: Das Werkstück wird auf die Werkstückspindel i aufgebracht, und. di;e Spitze 2 der Werkstückspindel wird ln die öffnung 12 des bogenförmigen Kranzes i i eingeführt, während die Büchse ¢ lose auf dien Gleitstück 13 ruht. Nun wird die Werkstückspindel i absatzweise entsprechend der Zahl der Auflageflächen an die umlaufende Schleifscheibe 16 angedrückt, bis die erste Auflageflächedes Flansches 4.1 wiederkehrt. Alsdann wird der Stift 2 in die benachbarte öffnung 12 des Kranzes i i eingeführt und der Vorgang beginnt von !neuem, so lange, bis sämtliche Facettenkränze des Werkstück jes geschliffen sind.The mode of operation of the device is as follows: The workpiece is applied to the workpiece spindle i, and. di; e tip 2 of the workpiece spindle is inserted into the opening 12 of the arched ring i i, while the sleeve ¢ rests loosely on the slide 13. Now the workpiece spindle i becomes intermittent pressed against the rotating grinding wheel 16 according to the number of contact surfaces, until the first contact surface of the flange 4.1 returns. Then the pen 2 is inserted into the adjacent opening 12 of the ring i i and the process begins all over again until all facet rings on the workpiece are ground are.

Claims (1)

PATRNTANSPRUCI3: Um eine zur Werkstückspindelachse senkrechte Achse schwingbarer und nach einer Skala einstellbarer Dioppenhalter an Maschinen zum Schleifen der Facetten verschiedener Kränze an fechte und unechte Edelsteine o. dgl., dadurch gekennzeichnet, daß die Feststellung der Drehlage der Düppe durch ein der Facettenzahl eines Kranzes @entsprechend vielkantiges Teilstück (q.) erfolgt, in dem es mit einer seiner Flächen auf einem kreissegmentförmigen ebenen Gleitstück (13) in jeder der einzelnen. Facettenkränzen entsprechenden Schwenklage aufliegt und daß die Versetzung der einzelnen benachbarten Facettenkränze gegeneinander durch Verdrehung der Werkstückspindel in der das Teilstück (q.1) tragenden Büchse (q.) nach Maßgabe einer Teilungsvorrichtung (3, 5) an. sich bekannter Art erfolgt, um mit einfachsten Mitteln die Arretierung der Drehlage der Werkstückspindeln in allen Schwenklagen herbeizuführen.PATRNTANSPRUCI3: About an axis perpendicular to the workpiece spindle axis Swiveling diop holder on machines for grinding, adjustable according to a scale the facets of different wreaths on fencing and fake gemstones or the like, thereby characterized in that the determination of the rotational position of the Düppe by one of the number of facets a wreath @ corresponding polygonal section (q.) takes place in which it is with a its surfaces on a circular segment-shaped flat slide (13) in each of the individual. Facet wreaths corresponding pivot position and that the offset of the individual adjacent facet rings against each other by turning the workpiece spindle in the bushing (q.) carrying the section (q.1) according to a dividing device (3, 5). known type takes place to the locking with the simplest means to bring about the rotational position of the workpiece spindles in all swivel positions.
DEM104293D 1928-04-03 1928-04-03 Swiveling around an axis perpendicular to the workpiece spindle axis and adjustable according to a scale double holder on machines for grinding the facets of real and fake gemstones Expired DE485937C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEM104293D DE485937C (en) 1928-04-03 1928-04-03 Swiveling around an axis perpendicular to the workpiece spindle axis and adjustable according to a scale double holder on machines for grinding the facets of real and fake gemstones

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEM104293D DE485937C (en) 1928-04-03 1928-04-03 Swiveling around an axis perpendicular to the workpiece spindle axis and adjustable according to a scale double holder on machines for grinding the facets of real and fake gemstones

Publications (1)

Publication Number Publication Date
DE485937C true DE485937C (en) 1929-11-06

Family

ID=7325364

Family Applications (1)

Application Number Title Priority Date Filing Date
DEM104293D Expired DE485937C (en) 1928-04-03 1928-04-03 Swiveling around an axis perpendicular to the workpiece spindle axis and adjustable according to a scale double holder on machines for grinding the facets of real and fake gemstones

Country Status (1)

Country Link
DE (1) DE485937C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2735246A (en) * 1956-02-21 Lapidary template and dop-stick

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2735246A (en) * 1956-02-21 Lapidary template and dop-stick

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