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 valvesInfo
- 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
Links
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 239000000654 additive Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
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
- B24B11/00—Machines or devices designed for grinding spherical surfaces or parts of spherical surfaces on work; Accessories therefor
- B24B11/02—Machines 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)
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)
| 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)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2075216A (en) * | 1935-10-14 | 1937-03-30 | Axelson Mfg Company | Valve seat lapping machine |
-
1955
- 1955-10-25 DE DEV9648A patent/DE1044663B/en active Pending
Patent Citations (1)
| 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)
| 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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