EP0652378B1 - Device for detecting positions of movable elements with sensors - Google Patents
Device for detecting positions of movable elements with sensors Download PDFInfo
- Publication number
- EP0652378B1 EP0652378B1 EP94250257A EP94250257A EP0652378B1 EP 0652378 B1 EP0652378 B1 EP 0652378B1 EP 94250257 A EP94250257 A EP 94250257A EP 94250257 A EP94250257 A EP 94250257A EP 0652378 B1 EP0652378 B1 EP 0652378B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- sensors
- lines
- sensor
- contact holder
- detecting positions
- 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 - Lifetime
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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
- F15B15/20—Other details, e.g. assembly with regulating devices
- F15B15/28—Means for indicating the position, e.g. end of stroke
- F15B15/2892—Means for indicating the position, e.g. end of stroke characterised by the attachment means
Definitions
- the invention specified in claim 1 is based on the problem of a Simplify the assembly of such sensor systems and achieve thereby a time reduction and at the same time a cost reduction to reach.
- the object is achieved in that two sensors to be connected with their respective signal lines and Power lines starting from the respective connector in each case any direction running on a T-shaped contact carrier are connected so that the lines are different Set the distances between the sensors automatically.
- the signal lines and the Power lines between the contact carrier and the sensors inside of a helical cable run. It is particularly clear here that a length adjustment of the sensor connection lines is saved and that slightly different lengths of measurement paths are collected can.
- the T-shaped Contact carrier on a tie rod of a tie rod cylinder housing is attachable.
- the first example shown represents a pneumatic cylinder, by means of tie rods 8, which run parallel to the cylinder axis are arranged by means of tie bolts 8a is that the cylinder cover 9a and a cylinder bottom 9b over one Cylinder housing 13 are held together biased. On the Cylinder cover 9a or the cylinder bottom 9b is located Compressed air connection 10 and mounting holes 11. At the left end protrudes from the cylinder housing 13 a piston rod 12 with thread and union nut to which the component to be moved is connected can.
- the device for querying positions on moving elements by means of Sensors here for the piston position in a pneumatic cylinder, with sensors 1a and 1b arranged at the two cylinder ends connect an electronic control 2 via a Control line connection 2a (Fig. 1).
- the two sensors to be connected 1a and 1b are with respective signal line 3a and power line 6 starting from a respective plug 4 each in opposite But directions on a line to a T-shaped Contact carrier 5 connected.
- This contact carrier 5 has in addition to Power lines 6 inputs E1 and E2 of sensors 1a and 1b and outputs A1 and A2 to the electronic control 2 and to their Control line connection 2a on.
- the line lengths between the Contact carrier 5 and the sensors 1a and 1b stand up different distances between the sensors 1a and 1b.
- the exemplary embodiment runs the signal lines 3 and Power lines 6 between the contact carrier 5 and the sensors 1a and 1b within a helical cable 7.
- the device can with all moving elements, their position is to be queried by means of sensors.
- the Device is therefore especially for devices of pneumatics Hydraulics or mechanics applicable.
- connection Connector 4 are used.
- Fig. 2 is a first sensor 1a over a circular connector 4a connected to the helical cable 7 and on the connector 4 is directly connected to the second sensor 1b, wherein the circular connector 4a directly into the T-shaped contact carrier 5 is plugged in.
- the assembly of such a modified connection also shows Fig. 3.
Description
Es ist bekannt, eine Einrichtung zur Abfrage von Stellungen an bewegten Elementen mittels Sensoren, insbesondere für Einrichtungen der Pneumatik, Hydraulik oder Mechanik, zu gestalten, bei denen der Sensor mit einer elektronischen Steuerung durch eine Signalleitung und einen Stecker verbunden ist. Derartige Steckverbinder-Systeme erfordern eine Kopplung von zwei Sensoren an eine Anschlußleitung, um die jeweiligen Endstellungen des bewegten Elementes, z.B. des Kolbens, in einem Pneumatik- oder Hydraulik-Zylinder, zu ermitteln. Hierzu dienen bekannterweise Abzweigungsgehäuse, von denen naturgemäß unterschiedlich lange Sensoranschlußleitungen zu dem jeweiligen Sensor geführt sind. Der Aufwand für derartige Systeme ist wegen der im Innern der Sensoranschlußleitungen geführten Stromkabel und Signalleitungen sehr hoch, so daß schon allein für zwei Sensoren auch zwei unterschiedlich lange Sensoranschlußleitungen hergestellt bzw. bereitgehalten werden müssen. Eine Umstellung auf unterschiedliche Längung, d.h. eine Verwendung der einmal geschaffenen Sensoranschlußleitungen auf ein anderes System ist jedoch nicht möglich. Die bekannten Sensoranschlußleitungen sowie Abzweigungsgehäuse, die an eine Steuerung anzuschließen sind, können nur individuell für die betreffende Länge eingesetzt werden. Eine derartige Vorrichtung ist aus der EP-A-0 125 992 bekannt.It is known a device for querying positions on moving Elements by means of sensors, in particular for facilities of Pneumatics, hydraulics or mechanics, where the sensor with electronic control by a signal line and a Connector is connected. Such connector systems require one Coupling two sensors to a connecting line to the respective End positions of the moving element, e.g. of the piston, in one Pneumatic or hydraulic cylinders. Serve for this as is known, branch housings, of which different by nature long sensor connection lines are led to the respective sensor. Of the The cost of such systems is due to the inside of the Sensor connection lines led power cables and signal lines very high, so that even two sensors are different long sensor connection cables are manufactured or kept ready have to. A switch to different elongation, i.e. a Use the once created Sensor connection cables to another system are not possible. The well-known sensor connection cables as well as junction boxes a controller can only be connected individually for the relevant length can be used. Such a device is known from EP-A-0 125 992.
Der im Anspruch 1 angegebenen Erfindung liegt das Problem zugrunde, eine Vereinfachung der Montage von solchen Sensor-Systemen zu erzielen und dadurch eine Zeitreduzierung und gleichzeitig eine Kostenreduzierung zu erreichen. Eine Anpassung der Sensoranschlußleitungen individuell an die jeweilige Länge des betreffenden Elementes, wie z.B. für Einrichtungen der Pneumatik, Hydraulik oder Mechanik, und damit eine Längenanpassung der Sensoranschlußleitungen ist zu vermeiden.The invention specified in claim 1 is based on the problem of a Simplify the assembly of such sensor systems and achieve thereby a time reduction and at the same time a cost reduction to reach. An adaptation of the sensor connection lines to the individual respective length of the element concerned, e.g. for facilities of pneumatics, hydraulics or mechanics, and thus length adjustment Avoid sensor connection cables.
Die gestellte Aufgabe wird erfindungsgemäß dadurch gelöst, daß zwei anzuschließende Sensoren mit ihren jeweiligen Signalleitungen und Stromleitungen von dem jeweiligen Stecker ausgehend jeweils in beliebigen Richtungen verlaufend an einen T-förmigen Kontaktträger derart angeschlossen sind, daß sich die Leitungen auf unterschiedliche Abstände zwischen den Sensoren selbsttätig einstellen.The object is achieved in that two sensors to be connected with their respective signal lines and Power lines starting from the respective connector in each case any direction running on a T-shaped contact carrier are connected so that the lines are different Set the distances between the sensors automatically.
Die mit der Erfindung erzielten Vorteile bestehen insbesondere darin, daß eine direkte, schnelle Montage ohne eine individuelle Anpassung der Sensoranschlußleitungen erfolgen kann, daß dadurch ein erheblicher Zeitgewinn und eine Kostenreduzierung entstehen.The advantages achieved with the invention are in particular that a direct, quick assembly without an individual adjustment of the Sensor connection lines can be made in that a considerable You save time and reduce costs.
Nach weiteren Merkmalen ist vorgesehen, daß die Signalleitungen und die Stromleitungen zwischen dem Kontaktträger und den Sensoren innerhalb eines Schraubenwendelkabels verlaufen. Hier wird besonders deutlich, daß eine Längeneinstellung der Sensoranschlußleitungen eingespart wird und daß leicht unterschiedliche Längen von Meßwegen aufgefangen werden können. According to further features, it is provided that the signal lines and the Power lines between the contact carrier and the sensors inside of a helical cable run. It is particularly clear here that a length adjustment of the sensor connection lines is saved and that slightly different lengths of measurement paths are collected can.
Nach weiteren Merkmalen der Erfindung ist vorgesehen, daß der T-förmige Kontaktträger auf einen Zuganker eines Zuganker-Zylinder-Gehauses aufsteckbar ist.According to further features of the invention it is provided that the T-shaped Contact carrier on a tie rod of a tie rod cylinder housing is attachable.
Ausführungsbeispiele der Erfindung sind in der Zeichnung dargestellt und werden im folgenden näher beschrieben. Es zeigen
- Fig. 1
- eine Draufsicht auf die Gesamtanordung, wobei als Beispiel ein pneumatischer Zylinder gewählt ist,
- Fgi. 1a
- eine Draufsicht wie Fig. 1, ohne Zuganker,
- Fig. 2
- ein einseitiges Schraubenwendelkabel,
- Fig. 3
- ein einseitiges Schraubenwendelkabel mit einer Fest länge auf der anderen Seite.
- Fig. 1
- 3 shows a plan view of the overall arrangement, a pneumatic cylinder being selected as an example,
- Fgi. 1a
- a plan view like FIG. 1, without tie rods,
- Fig. 2
- a one-sided helical cable,
- Fig. 3
- a one-sided helical cable with a fixed length on the other side.
Das gezeichnete erste Beispiel stellt einen pneumatischen Zylinder dar,
der mittels Zugankern 8, die parallelverlaufend zur Zylinderachse
angeordnet sind, mittels Zugankerschrauben 8a derart zusammengenalten
ist, daß der Zylinder-Deckel 9a und ein Zylinder-Boden 9b über ein
Zylinder-Gehäuse 13 vorgespannt zusammengehalten werden. Auf dem
Zylinder-Deckel 9a bzw. dem Zylinder-Boden 9b befindet sich ein
Druckluftanschluß 10 sowie Befestigungsbohrungen 11. Am linken Ende ragt
aus dem Zylindergehäuse 13 eine Kolbenstange 12 mit Gewinde und
überwurfmutter, an die das zu bewegende Bauteil angeschlossen werden
kann.The first example shown represents a pneumatic cylinder,
by means of
Die Einrichtung zur Abfrage von Stellungen an bewegten Elementen mittels
Sensoren, hier für die Kolbenstellung in einem pneumatischen Zylinder,
mit an den beiden Zylinderenden angeordneten Sensoren 1a und 1b
verbinden eine elektronische Steuerung 2 über einen
Steuerleitungsanschluß 2a (Fig. 1). Die zwei anzuschließenden Sensoren
1a und 1b sind mit inner jeweiligen Signalleitung 3a und Stromleitung
6 von einem jeweiligen Stecker 4 ausgehend jeweils in entgegengesetzten
Richtungen aber auf einer Linie verlaufend an einen T-förmigen
Kontaktträger 5 angeschlossen. Dieser Kontaktträger 5 weist außer den
Stromleitungen 6 Eingänge E1 und E2 der Sensoren 1a und 1b und Ausgänge
A1 und A2 zu der elektronischen Steuerung 2 bzw. zu deren
Steuerleitungsanschluß 2a auf. Die Leitungslängen zwischen dem
Kontaktträger 5 und den Sensoren 1a und 1b stellen sich auf
unterschiedliche Abstände der Sensoren 1a und 1b ein. Im
Ausführungsbeispiel verlaufen hierzu die Signalleitungen 3 und die
Stromleitungen 6 zwischen dem Kontaktträger 5 und den Sensoren 1a und 1b
innerhalb eines Schraubenwendelkabels 7.The device for querying positions on moving elements by means of
Sensors, here for the piston position in a pneumatic cylinder,
with
Die Einrichtung kann bei allen bewegten Elementen, deren Stellung mittels Sensoren abgefragt werden soll, eingesetzt werden. Die Einrichtung ist daher insbesondere für Einrichtungen der Pneumatik, der Hydraulik oder der Mechanik anwendbar.The device can with all moving elements, their position is to be queried by means of sensors. The Device is therefore especially for devices of pneumatics Hydraulics or mechanics applicable.
Die Erfindung kann alternativ auch in unterschiedlicher Verbindung des
Steckers 4 eingesetzt werden. So ist (Fig. 2) ein erster Sensor 1a über
einen Rundstecker 4a mit dem Schraubenwendelkabel 7 verbunden und an
den Stecker 4 ist unmittelbar der zweite Sensor 1b angeschlossen, wobei
der Rundstecker 4a unmittelbar in den T-förmigen Kontaktträger 5
eingesteckt ist. Den Zusammenbau einer solchen abgewandelten Verbindung
zeigt auch Fig. 3.Alternatively, the invention can also be used in a
Claims (4)
- A means for detecting positions of moved elements by means of sensors (1a, 1b), in particular for pneumatic, hydraulic or mechanical apparatus, in which the sensors (1a, 1b) are connected to an electronic control means by a signal line (3a) and a plug (4), characterised in that two sensors (1a, 1b) which are to be connected are connected to a T-shaped contact holder (5) with their respective signal line (3a) and power supply lines (6) starting from the respective plug (4) in each case extending in any directions desired, such that the lines can automatically be set to different distances between the sensors (1a, 1b).
- A means according to Claim 1, characterised in that the signal lines (3) and the power supply lines (6) extend between the contact holder (5) and the sensors (1a; 1b) within an elastic coiled cable (7).
- A means according to one of Claims 1 or 2, characterised in that the T-shaped contact holder (5) can be placed on and fastened to a tension rod (8).
- A means according to one of Claims 1 to 3, characterised in that a first sensor (1a) is arranged on the coiled cable (7) and a second sensor (1b) is connected directly to the contact holder (5).
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4338568A DE4338568C2 (en) | 1993-11-05 | 1993-11-05 | Device for querying positions on moving elements using sensors |
DE4338568 | 1993-11-05 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0652378A1 EP0652378A1 (en) | 1995-05-10 |
EP0652378B1 true EP0652378B1 (en) | 1998-05-20 |
Family
ID=6502390
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP94250257A Expired - Lifetime EP0652378B1 (en) | 1993-11-05 | 1994-10-19 | Device for detecting positions of movable elements with sensors |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP0652378B1 (en) |
DE (2) | DE4338568C2 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE29518539U1 (en) * | 1995-11-22 | 1996-01-18 | Festo Kg | Position detection device |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DK121336B (en) * | 1969-12-03 | 1971-10-04 | Islef & Hagen As | Working cylinder with position sensor. |
IT1058791B (en) * | 1976-04-08 | 1982-05-10 | Olivetti & Co Spa | PRECISION TRANSDUCER FOR LINEAR POSITION MEASUREMENTS |
FR2545888B1 (en) * | 1983-05-10 | 1987-07-17 | Compair Climax Sa | CYLINDER, ESPECIALLY MICROVERIN COMPRISING A DEVICE FOR SUPPORTING EXTERNAL EXTERNAL ELEMENTS |
DE3634062C2 (en) * | 1986-10-07 | 1994-08-11 | Festo Kg | Piston-cylinder unit |
DE3764644D1 (en) * | 1987-06-27 | 1990-10-04 | Merten Kg Pulsotronic | POSITION DETECTOR FOR THE MOVABLE PART OF A FLUID ACTUATED ACTUATOR. |
CH677144A5 (en) * | 1988-12-21 | 1991-04-15 | Weber Hans R |
-
1993
- 1993-11-05 DE DE4338568A patent/DE4338568C2/en not_active Expired - Fee Related
-
1994
- 1994-10-19 DE DE59406009T patent/DE59406009D1/en not_active Expired - Fee Related
- 1994-10-19 EP EP94250257A patent/EP0652378B1/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
DE59406009D1 (en) | 1998-06-25 |
EP0652378A1 (en) | 1995-05-10 |
DE4338568A1 (en) | 1995-05-11 |
DE4338568C2 (en) | 1997-05-22 |
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