EP1249620A1 - Positionsensor für Linearantrieb - Google Patents
Positionsensor für Linearantrieb Download PDFInfo
- Publication number
- EP1249620A1 EP1249620A1 EP02006141A EP02006141A EP1249620A1 EP 1249620 A1 EP1249620 A1 EP 1249620A1 EP 02006141 A EP02006141 A EP 02006141A EP 02006141 A EP02006141 A EP 02006141A EP 1249620 A1 EP1249620 A1 EP 1249620A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- linear drive
- detection means
- housing
- position detection
- connection device
- 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.)
- Granted
Links
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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 relates to a linear drive, with a housing with a housing cover arranged on at least one end region, with position detection means arranged in the housing and with an outer surface that is oriented sideways of the housing cover placed electromechanical connection device for releasably connecting one from the side electrical brought up to the outside of the linear drive Conductor arrangement.
- Fluid actuated linear drives usually contain one elongated housing with housing covers arranged on the front and a piston housed in the housing, which by Fluid application can be caused to a linear movement can.
- the linear movement can be done on a force tapping part tap from the outside to any object to move.
- position detection means equipped with a mostly in cable form electrical conductor arrangement with an external electronic Evaluation device can be connected.
- Linear drives are the position detection means in housed the wall of the housing of the linear drive.
- the electrical contact is made from the side of the linear drive forth in the area of a housing cover from which one connection unit connected to the position detection means protrudes.
- the electromechanical connection device is used to solve this task with no overhang regarding the sideways oriented outer surface completely recessed in the housing cover accommodated.
- the electromechanical connection device is for the electrical contacting one with the electrical conductor arrangement connected connecting part expediently equipped with plug contacts.
- the plug contacts are preferred formed as pins, the one to be connected Connection part is designed like a socket.
- the one for mechanical fixation with the electrical one Conductor arrangement connected connecting part serving means the electromechanical connection device preferably contain a screw thread, being a particularly useful Design provides an internal thread.
- the latter can be easy to integrate into the housing cover.
- thread sizes smaller than M8 are relatively easy in this way feasible, for example M6 thread.
- the electromechanical connection device could with respect to the lateral outer surface of the housing cover sit deep in the housing cover. Especially for reasons However, for ease of cleaning it is recommended an installation with a flush arrangement with respect to lateral outer surface of the housing cover.
- the position detection means can be, for example, from a Position sensor be formed.
- a configuration would also be possible as a position measuring system.
- the linear drive is preferably a fluid-operated linear drive, with a through in the housing Fluid power adjustable piston is arranged.
- the piston is equipped with actuators that are capable of are to operate the position detection means without contact.
- a fluid-actuated linear drive 1 is shown in the drawing out, which has an elongated housing 2, which a tubular middle part 3 and two end faces on the middle part 3 arranged housing covers 4, 5 contains.
- housing 2 Inside the housing 2 is one in the direction of Longitudinal axis 6 of the housing 2 extending piston receiving space 7. It is on the side of the middle part 3 and the front of the two housing covers 4, 5 limited.
- the piston receiving space 7 is arranged by one in it Slidable piston 8 axially divided into two working spaces 9, 10.
- Each workspace is located in the neighboring one Housing cover 4, 5 running fluid channel 12, 13 in connection, over the compressed air or another fluidic actuation medium can be fed or dissipated to the Piston 8 for a linear movement in one or the other Direction.
- the linear movement of the piston 8 can be outside the housing 2 on a force-tapping element that is motion-coupled to the piston 8 14 can be tapped. In this way, a any component can be moved and / or positioned.
- the Linear drive 1 of the exemplary embodiment is a working cylinder, wherein the force tap member 14 as with the piston 8th firmly connected piston rod is formed, at least one of the housing cover 4 guided under sealing penetrated to the outside.
- One arranged on the housing cover 4 Guide device and sealing device are indicated schematically at 15.
- the linear drive is equipped with position detection means 16, that are capable of one or more axial positions to detect the piston 8.
- position detection means 16 that are capable of one or more axial positions to detect the piston 8.
- the position detection means 16 could also be so be designed so that they each have several axial positions of the piston 8 can capture, in particular an embodiment can act as a path measuring system with which at least along a certain distance, every momentary position of the piston 8 can be detected.
- the position detection means 16 are completely inside the housing 2 housed. In the embodiment are it is formed by a rod-shaped position sensor, which by the end face of the middle part facing the housing cover 4 3 forth in a receiving recess 17 of this middle part 3 is inserted.
- the position detection means 16 contain in the embodiment specifically a rod-like housing with housed in it Detection means that are not in the drawing are shown in more detail.
- the detection means can from Piston 8 arranged actuating means 18 actuated without contact be, especially if the latter in one of the detection means reach radially within the opposite position.
- the actuating means 18 exist in the embodiment from a permanent magnetic ring element, the detection means form a so-called reed switch, the is actuated by the magnetic force.
- the position detection means 16 and the actuating means 18 possible.
- the electrical conductor arrangement 22 includes one or more electrical conductors - In the embodiment, two pieces - and is special trained like a cable. In Fig. 1, an end region is the electrical conductor arrangement 22 visible, on which an electromechanical Connection part 23 is arranged.
- connection part 23rd The connection part 23rd
- a major advantage of the arrangement described is in that the electromechanical connection device 24 without overhang with respect to the sideways oriented outer surface 25 completely sunk in the housing cover 4 is.
- a flush installation is preferably provided, which has the advantage that there is no deepening, in the later operation, with the connector connected 23, could deposit contaminants.
- the electromechanical connection device 24 is in the exemplary embodiment as a unit with the position detection means 16 trained. Therefore, a common, unified Mount on linear actuator 1. It is special possible the housing of the position detection means 16 and the housing of the electromechanical connection device 24 train in one piece.
- the electromechanical connection device 24 is in one to the laterally oriented outer surface 25 of the housing cover 4 accommodated open recess 26 of the housing cover 4. This has one pointing towards the middle part 3 Opening 27 through which the position detection means 16 protrude can.
- the electromechanical connection device 24 has the Embodiment of a in the receiving recess 26th seated socket-like housing part 28, the inner circumference with a screw thread 32 designed as an internal thread Is provided. Compared to a design with an external thread allows the chosen design a simpler Production and assembly with very compact dimensions.
- connection part provided on the electrical conductor arrangement 22 23 is equipped with a rotatable screw element 33, which has an external thread with which it can be used the screw thread 32 of the connection device 24 from the outside can be screwed in to the desired mechanical fastening to obtain.
- connection of the connection part 23 to the connection device 24 is a combined plug-screw process.
- the electrical connection is made by a plug-in process, the mechanical connection by a screwing process.
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Actuator (AREA)
- Transmission Devices (AREA)
- Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
Abstract
Description
- Fig. 1
- eine schematische Darstellung des erfindungsgemäßen Linearantriebes in einer Seitenansicht und
- Fig. 2
- einen Endbereich des Linearantriebes aus Fig. 1 im Längsschnitt gemäß Schnittlinie II-II.
Claims (10)
- Linearantrieb, mit einem Gehäuse (2) mit an mindestens einem Endbereich angeordnetem Gehäusedeckel (4), mit im Gehäuse (2) angeordneten Positionserfassungsmitteln (16) und mit einer im Bereich der seitwärts orientierten Außenfläche (25) des Gehäusedeckels (4) platzierten elektromechanischen Anschlusseinrichtung (24) zum lösbaren Anschließen einer von seitlich außen her an den Linearantrieb (1) herangeführten elektrischen Leiteranordnung (22) an die Positionserfassungsmittel (16), dadurch gekennzeichnet, dass die elektromechanische Anschlusseinrichtung (24) ohne Überstand bezüglich der seitwärts orientierten Außenfläche (25) vollständig versenkt im Gehäusedeckel (4) untergebracht ist.
- Linearantrieb nach Anspruch 1, dadurch gekennzeichnet, dass die elektromechanische Anschlusseinrichtung (24) über Steckkontakte (34) für die elektrische Kontaktierung eines mit der elektrischen Leiteranordnung (22) verbundenen Anschlussteils (23) verfügt.
- Linearantrieb nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass die elektromechanische Anschlusseinrichtung (24) über ein Schraubgewinde (32) für die mechanische Befestigung eines mit der elektrischen Leiteranordnung (22) verbundenen Anschlussteiles (23) verfügt.
- Linearantrieb nach Anspruch 3, dadurch gekennzeichnet, dass das Schraubgewinde (32) ein Innengewinde ist.
- Linearantrieb nach Anspruch 4 oder 5, dadurch gekennzeichnet, dass das Schraubgewinde (32) ein kleiner als M8 ausgebildetes Gewinde ist, insbesondere ein M6-Gewinde.
- Linearantrieb nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass die elektromechanische Anschlusseinrichtung (24) bündig mit der seitlichen Außenfläche (25) des Gehäusedeckels (4) angeordnet ist.
- Linearantrieb nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, dass die Anschlusseinrichtung (24) in Baueinheit mit den Positionserfassungsmitteln (16) ausgebildet ist.
- Linearantrieb nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, dass die Positionserfassungsmittel (16) von einem Positionssensor oder einem Wegmesssystem gebildet sind.
- Linearantrieb nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, dass im Gehäuse (2) ein Kolben (8) linear verschiebbar untergebracht ist, der Betätigungsmittel (18) zur Aktivierung der Positionserfassungsmittel (16) aufweist.
- Linearantrieb nach einem der Ansprüche 1 bis 9, gekennzeichnet durch eine Ausgestaltung als fluidbetätigter Linearantrieb.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE20106298U DE20106298U1 (de) | 2001-04-10 | 2001-04-10 | Linearantrieb |
DE20106298U | 2001-04-10 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1249620A1 true EP1249620A1 (de) | 2002-10-16 |
EP1249620B1 EP1249620B1 (de) | 2004-05-12 |
Family
ID=7955606
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP02006141A Expired - Fee Related EP1249620B1 (de) | 2001-04-10 | 2002-03-19 | Positionsensor für Linearantrieb |
Country Status (3)
Country | Link |
---|---|
US (1) | US6533596B2 (de) |
EP (1) | EP1249620B1 (de) |
DE (2) | DE20106298U1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102005059984A1 (de) * | 2005-12-13 | 2007-06-14 | Zf Friedrichshafen Ag | Sensoreinrichtung für ein Kolben-Zylinderaggregat |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE20014353U1 (de) | 2000-08-19 | 2000-12-07 | Festo Ag & Co | Linearantrieb |
DE20116564U1 (de) * | 2001-10-09 | 2002-01-17 | Festo Ag & Co | Positionserfassungsvorrichtung |
US7552671B2 (en) * | 2002-01-04 | 2009-06-30 | Parker-Hannifin Corporation | Cylinder with fiber optical position sensing device and method |
US6834574B2 (en) * | 2002-01-04 | 2004-12-28 | Parker-Hannifin Corporation | Cylinder with optical position sensing device and method |
DE10329045B4 (de) * | 2003-06-27 | 2006-04-20 | Rexroth Mecman Gmbh | Einrichtung zur Ermittlung mindestens einer Endlagenposition eines Antriebsgliedes, insbesondere eines druckmittelbetriebenen Linear- oder Drehantriebes |
WO2009140503A1 (en) | 2008-05-16 | 2009-11-19 | Parker Hannifin Corporation | Probe for determining an absolute position of a rod of a cylinder |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0095267A1 (de) * | 1982-05-10 | 1983-11-30 | Deere & Company | Hydraulikmotor mit Stellungsgeber |
JPH02259403A (ja) * | 1989-03-30 | 1990-10-22 | Kubota Ltd | 静電容量式のストロークセンサ |
EP0985831A2 (de) * | 1998-09-09 | 2000-03-15 | Festo AG & Co | Linearantrieb |
FR2794236A1 (fr) * | 1999-05-26 | 2000-12-01 | Serta | Dispositif permettant de connaitre la position et de mesurer les deplacements du piston ou de la tige de piston dans la chambre d'un verin du type comprenant un capteur potentiometrique rectiligne lineaire |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5378882A (en) * | 1992-09-11 | 1995-01-03 | Symbol Technologies, Inc. | Bar code symbol reader with locking cable connector assembly |
DE29508517U1 (de) * | 1995-05-23 | 1995-08-10 | Festo Kg | Kolbenstangenloser Linearantrieb |
-
2001
- 2001-04-10 DE DE20106298U patent/DE20106298U1/de not_active Expired - Lifetime
-
2002
- 2002-03-19 EP EP02006141A patent/EP1249620B1/de not_active Expired - Fee Related
- 2002-03-19 DE DE50200422T patent/DE50200422D1/de not_active Expired - Lifetime
- 2002-03-29 US US10/112,524 patent/US6533596B2/en not_active Expired - Fee Related
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0095267A1 (de) * | 1982-05-10 | 1983-11-30 | Deere & Company | Hydraulikmotor mit Stellungsgeber |
JPH02259403A (ja) * | 1989-03-30 | 1990-10-22 | Kubota Ltd | 静電容量式のストロークセンサ |
EP0985831A2 (de) * | 1998-09-09 | 2000-03-15 | Festo AG & Co | Linearantrieb |
FR2794236A1 (fr) * | 1999-05-26 | 2000-12-01 | Serta | Dispositif permettant de connaitre la position et de mesurer les deplacements du piston ou de la tige de piston dans la chambre d'un verin du type comprenant un capteur potentiometrique rectiligne lineaire |
Non-Patent Citations (1)
Title |
---|
PATENT ABSTRACTS OF JAPAN vol. 015, no. 015 (P - 1151) 11 January 1991 (1991-01-11) * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102005059984A1 (de) * | 2005-12-13 | 2007-06-14 | Zf Friedrichshafen Ag | Sensoreinrichtung für ein Kolben-Zylinderaggregat |
Also Published As
Publication number | Publication date |
---|---|
US6533596B2 (en) | 2003-03-18 |
DE50200422D1 (de) | 2004-06-17 |
US20020146939A1 (en) | 2002-10-10 |
DE20106298U1 (de) | 2001-06-21 |
EP1249620B1 (de) | 2004-05-12 |
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