DE1044663B - Device for grinding magnetizable balls and for grinding magnetizable balls in ball valves - Google Patents

Device for grinding magnetizable balls and for grinding magnetizable balls in ball valves

Info

Publication number
DE1044663B
DE1044663B DEV9648A DEV0009648A DE1044663B DE 1044663 B DE1044663 B DE 1044663B DE V9648 A DEV9648 A DE V9648A DE V0009648 A DEV0009648 A DE V0009648A DE 1044663 B DE1044663 B DE 1044663B
Authority
DE
Germany
Prior art keywords
grinding
ball
balls
magnetizable
magnetizable balls
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.)
Pending
Application number
DEV9648A
Other languages
German (de)
Inventor
Gerfried Pachmann
Gottfried Steudte
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.)
Transformatorenwerk Karl Liebknecht VEB
Original Assignee
Transformatorenwerk Karl Liebknecht VEB
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 Transformatorenwerk Karl Liebknecht VEB filed Critical Transformatorenwerk Karl Liebknecht VEB
Priority to DEV9648A priority Critical patent/DE1044663B/en
Publication of DE1044663B publication Critical patent/DE1044663B/en
Pending legal-status Critical Current

Links

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
    • B24B11/00Machines or devices designed for grinding spherical surfaces or parts of spherical surfaces on work; Accessories therefor
    • B24B11/02Machines or devices designed for grinding spherical surfaces or parts of spherical surfaces on work; Accessories therefor for grinding balls

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Multiple-Way Valves (AREA)

Description

Vorrichtung zum Schleifen von magnetisierbaren Kugeln und zum Einschleifen von magnetisierbaren Kugeln in Kugelventilen Die Erfindung betrifft eine Einrichtung zum Schleifen von magnetisierbaren Kugeln. und zum Einschleifen von magnetisierbaren Kugeln in Kugelventilen, bei der jede Kugel von einem Halter in Form eines Ventilsitzes bzw. von einem Ventilsitz selbst gehalten und mit diesem zusammen über eine Unterlage bewegt wird.Device for grinding magnetizable balls and for grinding in of magnetizable balls in ball valves The invention relates to a device for grinding magnetizable balls. and for grinding in magnetizable Balls in ball valves, where each ball is held by a holder in the form of a valve seat or held by a valve seat itself and together with it on a pad is moved.

Bei den bekannten Vorrichtungen dieser Art rollen die Kugeln auf einer möglichst griffigen Unterlage z. B. aus Gummi, ab. Der Schleifdruck ist hierbei nicht beliebig einstellbar, da das Abrollen der Kugel auf der Unterlage von dem Druck abhängt, mit dem die Kugel auf die Unterlage gedrückt wird. Insbesondere bei der Verwendung von flüssigen Schleifzusätzen muß der Druck zur Gewährleistung des Abrollens der Kugel sehr hoch sein; andernfalls rutscht die Kugel auf der Unterlage, und die gewollte Wirkung tritt nicht ein. Es sind daher der Genauigkeit des Einschleifens infolge eines nicht beliebig wählbaren Schleifdruckes Grenzen gesetzt.In the known devices of this type, the balls roll on a as non-slip surface as possible z. B. made of rubber. The sanding pressure is here not adjustable as the ball rolls on the base of the Depends on the pressure with which the ball is pressed onto the surface. Especially with the use of liquid abrasive additives must be the pressure to ensure the Rolling of the ball will be very high; otherwise the ball will slide on the surface, and the intended effect does not occur. It is therefore the precision of the grinding due to a grinding pressure that cannot be freely selected, limits are set.

Erfindungsgemäß wird dieser Nachteil dadurch beseitigt, daß die Unterlage magnetisch ist. Durch eine magnetische Unterlage wird die Kugel von unten gehalten, so daß mit einem beliebig wählbaren Schleifdruck gearbeitet werden kann.According to the invention, this disadvantage is eliminated in that the base is magnetic. The ball is held from below by a magnetic pad, so that you can work with any selectable grinding pressure.

In der Zeichnung ist ein Ausführungsbeispiel zur Veranschaulichung der Erfindung dargestellt. Es zeigt Abb. 1 einen Schnitt durch und Abb. 2 eine Draufsicht auf eine Vorrichtung der genannten Art.The drawing shows an embodiment for illustration of the invention shown. It shows Fig. 1 a section through and Fig. 2 a plan view to a device of the type mentioned.

Der Ventilsitz oder der Halter in Form eines Ventilsitzes, der ein einfacher Hohlzylinder sein kann, ist mit 1 bezeichnet und die zu schleifende Kugel mit 2. Die Unterlage, ein Stahlzylinder 3, wird von einer Gleichstromspule 4 magnetisiert, so daß die aus magnetisierbarem Werkstoff bestehende Kugel auf der gut plan geschliffenen Fläche des Stahlzylinders haftet.The valve seat or the holder in the form of a valve seat that a can be a simple hollow cylinder is denoted by 1 and the ball to be ground with 2. The base, a steel cylinder 3, is magnetized by a direct current coil 4, so that the ball made of magnetizable material on the well ground flat Surface of the steel cylinder sticks.

Wird der Sitz 1 entsprechend der eingezeichneten Linie 5 kreisförmig bewegt, dann rollt die von ihm geführte Kugel 2 auf einer Kreisbahn ab und führt dabei in dem Sitz eine allseitig drehende Bewegung aus. Zwischen Kugel und Sitz ist ein Schleifmittel 6, z. B. Schleifpaste, eingebracht. Durch die Linie 7 ist angedeutet, daß der Antrieb für die Bewegung des Sitzes sich außerhalb der zu beschreibenden Kreisbahn befindet.If the seat 1 is circular according to the drawn line 5 moves, then the ball 2 guided by him rolls on a circular path and leads doing an all-round rotating movement in the seat. Between the ball and the seat is an abrasive 6, e.g. B. grinding paste introduced. By line 7 is indicated that the drive for the movement of the seat is outside of the to be described Circular path is located.

Claims (1)

PATENTANSPRUCH: Vorrichtung zum Schleifen von magnetisierbaren Kugeln und zum Einschleifen von magnetisierbaren Kugeln in Kugelventilen, bei der jede Kugel von einem Halter in Form eines Ventilsitzes bzw. von einem Ventilsitz selbst gehalten und mit diesem zusammen über eine Unterlage bewegt wird, derart, daß die Kugel auf der Unterlage abrollt, dadurch gekennzeichnet, daß die Unterlage magnetisch ist. In Betracht gezogene Druckschriften: USA.-Patentschrift Nr. 2 075 216Claim: Device for grinding magnetizable balls and for grinding magnetizable balls in ball valves, in which each ball is held by a holder in the form of a valve seat or by a valve seat itself and is moved together with this over a base, in such a way that the ball rolls on the base, characterized in that the base is magnetic. References considered: U.S. Patent No. 2,075,216
DEV9648A 1955-10-25 1955-10-25 Device for grinding magnetizable balls and for grinding magnetizable balls in ball valves Pending DE1044663B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEV9648A DE1044663B (en) 1955-10-25 1955-10-25 Device for grinding magnetizable balls and for grinding magnetizable balls in ball valves

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEV9648A DE1044663B (en) 1955-10-25 1955-10-25 Device for grinding magnetizable balls and for grinding magnetizable balls in ball valves

Publications (1)

Publication Number Publication Date
DE1044663B true DE1044663B (en) 1958-11-20

Family

ID=7572768

Family Applications (1)

Application Number Title Priority Date Filing Date
DEV9648A Pending DE1044663B (en) 1955-10-25 1955-10-25 Device for grinding magnetizable balls and for grinding magnetizable balls in ball valves

Country Status (1)

Country Link
DE (1) DE1044663B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0053866A1 (en) * 1980-12-09 1982-06-16 SKF Industrial Trading & Development Co, B.V. Method of grinding rough-shaped objects to a clean spherical form

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2075216A (en) * 1935-10-14 1937-03-30 Axelson Mfg Company Valve seat lapping machine

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2075216A (en) * 1935-10-14 1937-03-30 Axelson Mfg Company Valve seat lapping machine

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0053866A1 (en) * 1980-12-09 1982-06-16 SKF Industrial Trading & Development Co, B.V. Method of grinding rough-shaped objects to a clean spherical form

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