DE10211487A1 - Membrane fixing device for pneumatic actuator has valve rods forced by clamping through circular aperture in membrane - Google Patents
Membrane fixing device for pneumatic actuator has valve rods forced by clamping through circular aperture in membraneInfo
- Publication number
- DE10211487A1 DE10211487A1 DE2002111487 DE10211487A DE10211487A1 DE 10211487 A1 DE10211487 A1 DE 10211487A1 DE 2002111487 DE2002111487 DE 2002111487 DE 10211487 A DE10211487 A DE 10211487A DE 10211487 A1 DE10211487 A1 DE 10211487A1
- Authority
- DE
- Germany
- Prior art keywords
- membrane
- valve rod
- pneumatic actuator
- fixing device
- clamping
- 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.)
- Ceased
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/08—Characterised by the construction of the motor unit
- F15B15/10—Characterised by the construction of the motor unit the motor being of diaphragm type
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Actuator (AREA)
Abstract
Description
Die Erfindung betrifft eine Membranbefestigungsanordnung, insbesondere für einen pneumatischen Aktuator, mit einer aus einem Elastomer bestehenden Membran, die an einem Membranteller fixiert ist und wobei der Membranteller durch eine Schweißverbinung mit einer Ventilstange verbunden ist. The invention relates to a membrane fastening arrangement, in particular for a pneumatic actuator with an elastomer Membrane, which is fixed to a membrane plate and the membrane plate is connected to a valve rod by a welded joint.
Eine derartige Membranbefestigungsanordnung ist beispielsweise aus der DE 196 25 769 A1 bekannt. Bei der Ausführungsform gemäß dieser Druckschrift ist der Membranteller hutförmig ausgeformt, wobei eine Kragenausformung mit der Membrane verspritzt ist. Die Hutausformung des Membrantellers ist auf die Ventilstange gesteckt und mit dieser durch eine Schweißverbindung verbunden. Diese Membranbefestigungsanordnung weist den Nachteil eines hohen Fertigungs- und Montageaufwandes und der damit verbundenen Kosten auf. Such a membrane fastening arrangement is for example from DE 196 25 769 A1 known. In the embodiment according to this document is the Membrane plate shaped hat-shaped, with a collar shape with the Membrane is splashed. The hat shape of the membrane plate is on the Valve rod inserted and connected to it by a welded connection. This membrane fastening arrangement has the disadvantage of a high one Manufacturing and assembly costs and the associated costs.
Hiervon ausgehend liegt der Erfindung die Aufgabe zugrunde, eine Membranbefestigungsanordnung zu schaffen, die den oben genannten Nachteil vermeidet. Proceeding from this, the invention is based on the object Membrane mounting arrangement to create the disadvantage mentioned above avoids.
Diese Aufgabe wird dadurch gelöst, daß die Ventilstange unter Klemmwirkung durch eine kreisrunde Öffnung der Membran hindurchreicht, wobei die Membran im Bereich der Öffnung verdickt ausgeführt ist. Auf diese Weise wird mit einem geringen Fertigungs- und Montageaufwand eine Membranbefestigungsanordnung geschaffen die absolut abgedichtet ist. Besonders einfach zu Fertigen wird die Membranbefestigungsanordnung dadurch, daß der Membranteller eine Öffnung aufweist in der die Ventilstange hineinreicht, wobei die Ventilstange durch eine Laserschweißverbindung mit dem Membranteller verbunden ist. This object is achieved in that the valve rod under clamping action extends through a circular opening of the membrane, the membrane is thickened in the area of the opening. That way, with one low manufacturing and assembly effort a membrane mounting arrangement created that is absolutely sealed. It is particularly easy to manufacture Membrane fastening arrangement in that the membrane plate has an opening has in which extends the valve rod, the valve rod by a Laser welding connection is connected to the membrane plate.
Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung dargestellt und wird nachfolgend beschrieben. An embodiment of the invention is shown in the drawing and will described below.
Die Zeichnung zeigt einen an sich bekannten pneumatischen Aktuator 1. Über eine Einlaßleitung 2 kann in einem Raum 3 ein Unterdruck eingestellt werden, durch den eine Membrane 4 und damit eine Ventilstange 5 nach oben bewegt werden. Es sollte deutlich sein, daß für diese Funktion eine absolute Abdichtung der Membran 4 mit der Ventilstange 5 gewährleistet sein muß. The drawing shows a pneumatic actuator 1 known per se. A negative pressure can be set in an area 3 via an inlet line 2 , through which a diaphragm 4 and thus a valve rod 5 are moved upward. It should be clear that an absolute seal of the membrane 4 with the valve rod 5 must be guaranteed for this function.
Erfindungsgemäß reicht die Ventilstange 5 durch eine Öffnung 6 der Membran 4 unter Klemmwirkung hindurch und endet in einer Öffnung 7 eines Membrantellers 8. Die Ventilstange 5 ist mit dem Membranteller 8 vorzugsweise durch Laserschweißen verbunden. Die Membran 4 weist im Bereich ihrer Öffnung 6 eine Verdickung 9 auf, wodurch die Dichtwirkung erhöht wird. Um die Montage zu vereinfachen, kann die Ventilstange 5 ein Ansatzstück 10 aufweisen. According to the invention, the valve rod 5 extends through an opening 6 of the membrane 4 under clamping action and ends in an opening 7 of a membrane plate 8 . The valve rod 5 is connected to the diaphragm plate 8, preferably by laser welding. The membrane 4 has a thickening 9 in the region of its opening 6 , which increases the sealing effect. In order to simplify the assembly, the valve rod 5 can have an extension piece 10 .
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2002111487 DE10211487A1 (en) | 2002-03-15 | 2002-03-15 | Membrane fixing device for pneumatic actuator has valve rods forced by clamping through circular aperture in membrane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2002111487 DE10211487A1 (en) | 2002-03-15 | 2002-03-15 | Membrane fixing device for pneumatic actuator has valve rods forced by clamping through circular aperture in membrane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE10211487A1 true DE10211487A1 (en) | 2003-09-25 |
Family
ID=27771349
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE2002111487 Ceased DE10211487A1 (en) | 2002-03-15 | 2002-03-15 | Membrane fixing device for pneumatic actuator has valve rods forced by clamping through circular aperture in membrane |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE10211487A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018010886A1 (en) * | 2016-07-11 | 2018-01-18 | Festo Ag & Co. Kg | Operating unit for a fluid-operated diaphragm actuator and method for the production thereof and diaphragm actuator equipped therewith |
-
2002
- 2002-03-15 DE DE2002111487 patent/DE10211487A1/en not_active Ceased
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018010886A1 (en) * | 2016-07-11 | 2018-01-18 | Festo Ag & Co. Kg | Operating unit for a fluid-operated diaphragm actuator and method for the production thereof and diaphragm actuator equipped therewith |
| CN109416061A (en) * | 2016-07-11 | 2019-03-01 | 费斯托股份有限两合公司 | The manipulation unit of the diaphragm driver of fluid manipulation and the method manufactured for it and the diaphragm driver equipped with it |
| US10697478B2 (en) | 2016-07-11 | 2020-06-30 | Festo Se & Co. Kg | Operating unit for a fluid-operated diaphragm actuator and method for the production thereof and diaphragm actuator equipped therewith |
| CN109416061B (en) * | 2016-07-11 | 2021-02-09 | 费斯托股份两合公司 | Actuating unit of a fluid-actuated diaphragm drive, method for the production thereof, and diaphragm drive equipped therewith |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 8110 | Request for examination paragraph 44 | ||
| 8131 | Rejection |