EP1519060B1 - Universal pneumatic drive unit - Google Patents

Universal pneumatic drive unit Download PDF

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Publication number
EP1519060B1
EP1519060B1 EP20040104723 EP04104723A EP1519060B1 EP 1519060 B1 EP1519060 B1 EP 1519060B1 EP 20040104723 EP20040104723 EP 20040104723 EP 04104723 A EP04104723 A EP 04104723A EP 1519060 B1 EP1519060 B1 EP 1519060B1
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EP
European Patent Office
Prior art keywords
base housing
drive unit
pneumatic drive
stop
stop element
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 - Fee Related
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EP20040104723
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German (de)
French (fr)
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EP1519060A1 (en
Inventor
Heiko Merz
Frédéric Demetz
Sonia Dubos
Jean-Michel Lécrivain
Serge Woltèche
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Bosch Rexroth AG
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Bosch Rexroth AG
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Publication of EP1519060A1 publication Critical patent/EP1519060A1/en
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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
    • F15B15/08—Characterised by the construction of the motor unit
    • F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
    • F15B15/1404—Characterised by the construction of the motor unit of the straight-cylinder type in clusters, e.g. multiple cylinders in one block
    • 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
    • F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
    • F15B15/1423—Component parts; Constructional details
    • F15B15/1471—Guiding means other than in the end cap
    • 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
    • F15B15/24—Other details, e.g. assembly with regulating devices for restricting the stroke
    • 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
    • F15B15/2807—Position switches, i.e. means for sensing of discrete positions only, e.g. limit switches
    • 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 present invention relates to a pneumatic drive unit with a base housing to which a slide unit is mounted longitudinally adjustable by linear guide means, wherein the base housing is crossed by at least one cylinder-like recess, which is acted upon via external connections with compressed air, and which each receiving a piston unit for Forming the carriage unit over the Compressed air movable drive is used, the stroke is limited by adjustable stop means and is detectable by sensor means which are housed in at least one arranged on the base housing and extending parallel to the cylinder-like recess outer sensor groove.
  • US Pat. No. 6,014,924 discloses a generic pneumatic drive unit whose carriage unit is guided longitudinally along the base body via a ball linear guide.
  • the trained in the manner of a piston-cylinder unit pneumatic drive is supplied via terminals, which are placed at the rear end side of the drive unit.
  • This requires a relatively complicated internal ducting to pressurize both sides of the integrated piston with compressed air, so that a reciprocating motion of the piston can be achieved.
  • two mutually parallel outer sensor grooves are provided, which run on one of the two flank sides of the drive unit.
  • a disadvantage of the known pneumatic drive unit is that due to the asymmetrical architecture in particular the sensor means are only accessible on one side, for example, to make adjustments. If the pneumatic drive unit is installed in a system, it must therefore be ensured that both the sensor means accommodated in the sensor grooves remain accessible from the outside; The pneumatic connections must not be covered by plant components. These design constraints limit the application possibilities of the drive unit. A higher design effort for the user thus consists in that the system is adapted to the construction of the drive unit, namely by releases, covers, etc.
  • the object is achieved on the basis of a pneumatic drive unit according to the preamble of claim 1 in conjunction with its characterizing features.
  • the invention makes use of a redundant double arrangement of the connections as well as the at least one sensor hub, which are at the same time directly integrated on the two opposite flank sides of the basic housing. Depending on the installation conditions, these can optionally be used for mounting the sensor means or the pressure medium connection, with unused connections on the remaining flank side being closable via closure elements.
  • the advantage of the solution according to the invention is, in particular, that always the same pneumatic drive unit can be used without Ummontage working under different installation conditions. This is achieved essentially by the symmetrical architecture according to the invention, without additional components.
  • actuating elements for adjusting stop means are provided for limiting the end position of the piston, which are arranged in the region of that side of the base housing, which is opposite to the penetrated by the piston rod end face.
  • both actuators of the stop means are accessible from a single side.
  • adjustable stop means may consist of a first stop element and a second stop element, wherein the adjustable with an associated actuator first stop element to form a Einfahranschlages fixed relative to the base housing is arranged and adjustable from an associated actuator second stop element to form a Ausfahranschlages stationary relative to the Carriage unit is arranged.
  • This constructive arrangement of the stop means forms the prerequisite for the accessibility of a common end face of the pneumatic drive unit.
  • the second Alternatively to arrange the stop element on both sides of the first stop element in order to adapt its accessibility.
  • the pneumatic drive unit consists of a base housing 1, on which a longitudinally displaceable slide unit 2 in this respect is attachable.
  • the relative displaceability is achieved via linear guide means 3, which are designed in the manner of a ball linear guide.
  • This consists essentially of a screwed onto the base housing 1 linear guide rail 4, which cooperates - not shown here - rolling elements with an upper linear guide carriage 5.
  • the linear guide carriage 5 is screwed to the carriage unit 2.
  • the carriage unit 2 consists essentially of a carriage plate 6 extending along the base housing 1, from which a plate head section 7 is arranged transversely.
  • the basic housing 1 is constructed symmetrically along its longitudinal axis and crossed by two cylindrical recesses 8a, 8b.
  • the two cylinder-like recesses 8a and 8b within the base housing 1 serve to receive a respective piston unit 9a, 9b, with which the carriage unit 2 is reciprocated.
  • the distal end of the piston rod 10 adjoining the piston unit 9a and 9b (here only one shown) is fastened to the plate head section 7 extending transversely to the carriage plate 7.
  • two outer terminals 11 a, 11 b are provided on the base housing.
  • the terminals 11 a and 11 b are arranged on the one flank side 12 a of the base housing 1.
  • the same external connections are also provided redundantly on the opposite flank side 12b of the basic housing 1 (not shown).
  • the one flank side 12a also has a double sensor groove 13a which is also present on the opposite flank side 12b (not shown).
  • the outer sensor groove 13a and the redundant, opposite sensor groove serve here to receive sensor means (not shown) for detecting the piston position within the base housing 1 for control purposes.
  • the symmetrical redundant arrangement of the connections 11a and 11b for the application of compressed air and the Sensomut 13a on the two opposite edge sides 12a and 12b of the base housing 1 allows, depending on the installation conditions either the installation of the sensor means or the compressed air connection either from the one flank side 12a or other flank side 12b rather realize.
  • the unused terminals on the remaining side of the flanks 12a and 12b are closed by suitable closure elements.
  • the pneumatic drive unit further includes stop means for limiting the stroke of the Schlitteneinatti 2.
  • the stop means are adjustable designed to adjust the stroke length and end stop position of the carriage unit 2 to different structural conditions can.
  • actuators 14a, 14b are used.
  • the actuating elements 14a and 14b are arranged for adjusting the stop means in the region of that end face 15 of the base housing 1, which is opposite to the plate head portion 7 adjacent end face 16 of the base housing 1.
  • the adjustable stop means comprise two stop elements 17a and 17b.
  • the actuating element 14a is associated with the first stop element 17a
  • the Actuator 14b is associated with the second stop element 17b.
  • the first stop element 17a is arranged stationarily relative to the base housing 1 to form an adjustable retraction stop of the pneumatic drive unit. Since the second stop element 17b serves to form an extension stop, it is arranged stationary relative to the slide unit 2.
  • the second stop element 17a can be mounted either on the left or on the right side of the first stop element 17b arranged on the side of the basic housing 1 in order to be able to freely select the position of the second stop element depending on the prevailing space conditions. This is made possible by the longitudinally symmetrical structure of the basic housing 1.

Description

Die vorliegende Erfindung betrifft eine pneumatische Antriebseinheit mit einem Grundgehäuse, an dem eine Schlitteneinheit über Linearführungsmittel längs verstellbar angebracht ist, wobei das Grundgehäuse von mindestens einer zylinderartigen Ausnehmung durchzogen ist, welche über äußere Anschlüsse mit Druckluft beaufschlagbar ist, und welche der Aufnahme je einer Kolbeneinheit zur Bildung eines die Schlitteneinheit über die Druckluft bewegbaren Antriebs dient, dessen Hub über verstellbare Anschlagmittel begrenzt ist und über Sensormittel detektierbar ist, welche in mindestens einer am Grundgehäuse angeordneten und sich parallel zur zylinderartigen Ausnehmung erstreckenden äußeren Sensornut untergebracht sind.The present invention relates to a pneumatic drive unit with a base housing to which a slide unit is mounted longitudinally adjustable by linear guide means, wherein the base housing is crossed by at least one cylinder-like recess, which is acted upon via external connections with compressed air, and which each receiving a piston unit for Forming the carriage unit over the Compressed air movable drive is used, the stroke is limited by adjustable stop means and is detectable by sensor means which are housed in at least one arranged on the base housing and extending parallel to the cylinder-like recess outer sensor groove.

Das Einsatzgebiet derartiger pneumatischer Antriebseinheiten ist vor allem die Handhabungstechnik. Beispielsweise werden Werkzeuge oder Werkstücke im Fertigungsprozess entlang kurzer Strecken linear transportiert oder positioniert.The field of application of such pneumatic drive units is above all the handling technology. For example, tools or workpieces are linearly transported or positioned along short distances in the manufacturing process.

Aus der US 6,014,924 geht eine gattungsgemäße pneumatische Antriebseinheit hervor, deren Schlitteneinheit über eine Kugellinearführung längs entlang des Grundkörpers geführt ist. Der nach Art einer Kolben-Zylindereinheit ausgebildete pneumatische Antrieb wird über Anschlüsse versorgt, welche an der rückwärtigen Stirnseite der Antriebseinheit platziert sind. Dies bedingt eine relativ aufwendige interne Kanalführung, um beide Seiten des integrierten Kolbens mit Druckluft zu beaufschlagen, so dass eine Hin- und Herbewegung des Kolbens erzielt werden kann. Für die Unterbringung der den Hub des Kolbens detektierenden Sensormittel sind zwei zueinander parallel verlaufende äußere Sensomuten vorgesehen, welche an einer der beiden Flankenseiten der Antriebseinheit verlaufen.US Pat. No. 6,014,924 discloses a generic pneumatic drive unit whose carriage unit is guided longitudinally along the base body via a ball linear guide. The trained in the manner of a piston-cylinder unit pneumatic drive is supplied via terminals, which are placed at the rear end side of the drive unit. This requires a relatively complicated internal ducting to pressurize both sides of the integrated piston with compressed air, so that a reciprocating motion of the piston can be achieved. For accommodating the sensor means detecting the stroke of the piston, two mutually parallel outer sensor grooves are provided, which run on one of the two flank sides of the drive unit.

Ein Nachteil der bekannten pneumatischen Antriebseinheit ist, dass bedingt durch die unsymmetrische Architektur insbesondere die Sensormittel nur einseitig erreichbar sind, um beispielsweise Einstellungen vorzunehmen. Falls die pneumatische Antriebseinheit in eine Anlage eingebaut wird, ist also darauf zu achten, dass sowohl die in die Sensomuten untergebrachten Sensormittel von außen her zugänglich bleiben; auch die pneumatischen Anschlüsse dürfen nicht durch Anlagenteile verdeckt sein. Diese konstruktiven Randbedingungen schränken die Einsatzmöglichkeiten der Antriebseinheit ein. Ein höherer konstruktiver Aufwand für den Nutzer besteht also dadurch, dass die Anlage an die Konstruktion der Antriebseinheit anzupassen ist, nämlich durch Freilassungen, Deckel etc.A disadvantage of the known pneumatic drive unit is that due to the asymmetrical architecture in particular the sensor means are only accessible on one side, for example, to make adjustments. If the pneumatic drive unit is installed in a system, it must therefore be ensured that both the sensor means accommodated in the sensor grooves remain accessible from the outside; The pneumatic connections must not be covered by plant components. These design constraints limit the application possibilities of the drive unit. A higher design effort for the user thus consists in that the system is adapted to the construction of the drive unit, namely by releases, covers, etc.

Gemäß DE 197 20 100 A1 ist bereits versucht worden, eine pneumatische Antriebseinheit der hier interessierenden Art dahingehend weiterzuverbessem, dass die pneumatischen Anschlüsse mit zusätzlichen Mitteln wahlweise zu einer Flankenseite des Grundgehäuses oder zu der gegenüberliegenden Flankenseite des Grundgehäuses angeordnet werden können. Dasselbe gilt auch für Sensomuten. Hierfür (Fig.24 ff.) kommt eine separate Sensorbefestigungsschiene zum Einsatz, in welcher zwei zueinander parallel verlaufende äußere Sensomuten ausgebildet sind. Die Sensorbefestigungsschiene kann entweder an der einen Flankenseite des Grundgehäuses oder an der anderen Flankenseite des Grundgehäuses - je nach Einbauverhältnissen - befestigt werden. Ebenso können die pneumatischen Anschlüsse entweder an einer Flankenseite oder an der anderen Flankenseite angeordnet werden.According to DE 197 20 100 A1, it has already been attempted to further improve a pneumatic drive unit of the type of interest here such that the pneumatic connections can be arranged with additional means either to one side of the base housing or to the opposite side of the base housing. The same applies to Sensomuts. For this purpose (FIG. 24 et seq.), A separate sensor mounting rail is used, in which two outer sensor grooves running parallel to one another are formed. The sensor mounting rail can either be attached to the one flank side of the basic housing or to the other side of the flank of the basic housing - depending on installation conditions. Likewise, the pneumatic connections can be arranged either on one side of the flank or on the other side of the flank.

Diese technische Lösung bedingt jedoch einen Bauteilemehraufwand in Form der zusätzlichen Sensorbefestigungsschiene. Ein erhöhter Aufwand entsteht auch durch die erforderliche Montage der Sensorbefestigungsschiene. Weiterhin sind zwischen dieser und dem Grundgehäuse zusätzliche Dichtungselemente vorzusehen, um ein Abströmen von Druckluft im Bereich der pneumatischen Anschlüsse zu vermeiden. Auch bei dieser technischen Lösung verbleibt das konstruktive Problem, dass nie alle Funktionen von einer einzigen Montageseite der Antriebseinheit her frei zugänglich sind.However, this technical solution requires a Bauteilemehraufwand in the form of additional sensor mounting rail. An increased effort is also due to the required mounting of the sensor mounting rail. Furthermore, additional sealing elements have to be provided between the latter and the basic housing in order to prevent the escape of compressed air in the area of the pneumatic connections. Even with this technical solution remains the constructive problem that never all functions are freely accessible from a single mounting side of the drive unit ago.

Es ist daher die Aufgabe der vorliegenden Erfindung, eine einfache Lösung für eine unveränderbar selbst bei schwierigen Einbauverhältnissen flexibel einsetzbare pneumatische Antriebseinheit zu schaffen.It is therefore the object of the present invention to provide a simple solution for an unchangeable even in difficult installation conditions flexibly applicable pneumatic drive unit.

Die Aufgabe wird ausgehend von einer pneumatischen Antriebseinheit gemäß dem Oberbegriff des Anspruchs 1 in Verbindung mit dessen kennzeichnenden Merkmalen gelöst.The object is achieved on the basis of a pneumatic drive unit according to the preamble of claim 1 in conjunction with its characterizing features.

Die nachfolgenden abhängigen Ansprüche geben vorteilhafte Weiterbildungen der Erfindung wieder.The following dependent claims give advantageous developments of the invention.

Die Erfindung bedient sich einer redundanten Doppelanordnung der Anschlüsse sowie der mindestens einen Sensomut, welche zugleich an den beiden einander gegenüberliegenden Flankenseiten des Grundgehäuses direkt integriert sind. Je nach Einbaubedingungen sind diese wahlweise für die Montage der Sensormittel bzw. den Druckmittelanschluss nutzbar, wobei ungenutzte Anschlüsse auf der verbleibenden Flankenseite über Verschlusselemente verschließbar sind.The invention makes use of a redundant double arrangement of the connections as well as the at least one sensor hub, which are at the same time directly integrated on the two opposite flank sides of the basic housing. Depending on the installation conditions, these can optionally be used for mounting the sensor means or the pressure medium connection, with unused connections on the remaining flank side being closable via closure elements.

Der Vorteil der erfindungsgemäßen Lösung liegt insbesondere darin, dass immer dieselbe pneumatische Antriebseinheit ohne Ummontage arbeiten bei unterschiedlichen Einbaubedingungen verwendet werden kann. Dies wird im Wesentlichen durch die erfindungsgemäße symmetrische Architektur erreicht, und zwar ohne zusätzliche Bauteile.The advantage of the solution according to the invention is, in particular, that always the same pneumatic drive unit can be used without Ummontage working under different installation conditions. This is achieved essentially by the symmetrical architecture according to the invention, without additional components.

Gemäß einer weiteren die Erfindung verbessernden Maßnahme sind Betätigungselemente zum Verstellen von Anschlagmitteln zur Endlagenbegrenzung des Kolbens vorgesehen, welche im Bereich derjenigen Seite des Grundgehäuses angeordnet sind, die der von der Kolbenstange durchdrungenen Stirnseite gegenüberliegt. Somit sind auch beide Betätigungselemente der Anschlagmittel von einer einzigen Seite her zugänglich. Hierfür geeignete verstellbare Anschlagmittel können aus einem ersten Anschlagelement und einem zweiten Anschlagelement bestehen, wobei das mit einem zugeordneten Betätigungselement verstellbare erste Anschlagelement zur Bildung eines Einfahranschlages ortsfest gegenüber dem Grundgehäuse angeordnet ist und das aus einem zugeordneten Betätigungselement verstellbare zweite Anschlagelement zur Bildung eines Ausfahranschlages ortsfest gegenüber der Schlitteneinheit angeordnet ist. Diese konstruktive Anordnung der Anschlagmittel bildet die Voraussetzung für die Zugänglichkeit von einer gemeinsamen Stirnseite der pneumatischen Antriebseinheit her. Zusätzlich ist es auch möglich, das zweite Anschlagelement wahlweise beidseits des ersten Anschlagelements anzuordnen, um dessen Zugänglichkeit anzupassen.According to a further measure improving the invention, actuating elements for adjusting stop means are provided for limiting the end position of the piston, which are arranged in the region of that side of the base housing, which is opposite to the penetrated by the piston rod end face. Thus, both actuators of the stop means are accessible from a single side. Suitable for this purpose adjustable stop means may consist of a first stop element and a second stop element, wherein the adjustable with an associated actuator first stop element to form a Einfahranschlages fixed relative to the base housing is arranged and adjustable from an associated actuator second stop element to form a Ausfahranschlages stationary relative to the Carriage unit is arranged. This constructive arrangement of the stop means forms the prerequisite for the accessibility of a common end face of the pneumatic drive unit. In addition, it is also possible, the second Alternatively, to arrange the stop element on both sides of the first stop element in order to adapt its accessibility.

Weitere die Erfindung verbessernde Maßnahmen gehen aus den abhängigen Ansprüchen hervor bzw. werden im Zuge der Beschreibung eines bevorzugten Ausführungsbeispiels der Erfindung anhand der Figuren näher dargestellt. Es zeigt:

Fig. 1
eine perspektivische Explosionsdarstellung einer pneumatischen Antriebseinheit, und
Fig.2
eine Draufsicht auf die pneumatische Antriebseinheit nach Fig.1 im zusammengebauten Zustand.
Further measures improving the invention will become apparent from the dependent claims and will become apparent from the description of a preferred embodiment of the invention with reference to the figures. It shows:
Fig. 1
an exploded perspective view of a pneumatic drive unit, and
Fig.2
a plan view of the pneumatic drive unit according to Fig.1 in the assembled state.

Gemäß Fig. besteht die pneumatische Antriebseinheit aus einem Grundgehäuse 1, auf welchem eine diesbezüglich längs verschiebbare Schlitteneinheit 2 anbringbar ist. Die relative Verschiebbarkeit wird über Linearführungsmittel 3 erzielt, welche nach Art einer Kugellinearführung ausgebildet sind. Diese besteht im Wesentlichen aus einer am Grundgehäuse 1 anschraubbaren Linearführungsschiene 4, die über - hier nicht weiter dargestellte - Wälzkörper mit einem oberen Linearführungswagen 5 zusammenwirkt. Der Linearführungswagen 5 ist an der Schlitteneinheit 2 angeschraubt. Die Schlitteneinheit 2 besteht im Wesentlichen aus einer sich entlang des Grundgehäuses 1 erstreckenden Schlittenplatte 6, von der aus quer ein Plattenkopfabschnitt 7 angeordnet ist. Das Grundgehäuse 1 ist entlang seiner Längsachse symmetrisch aufgebaut und von zwei zylindrischen Ausnehmungen 8a, 8b durchzogen. Die beiden zylinderartigen Ausnehmungen 8a und 8b innerhalb des Grundgehäuses 1 dienen der Aufnahme je einer Kolbeneinheit 9a, 9b, womit die Schlitteneinheit 2 hin- und herbewegt wird. Zu diesem Zwecke ist das distale Ende der sich an der Kolbeneinheit 9a und 9b hier anschließenden Kolbenstange 10 (hier nur eine gezeigt) am sich quer zur Schlittenplatte 7 erstreckenden Plattenkopfabschnitt 7 befestigt.According to Fig., The pneumatic drive unit consists of a base housing 1, on which a longitudinally displaceable slide unit 2 in this respect is attachable. The relative displaceability is achieved via linear guide means 3, which are designed in the manner of a ball linear guide. This consists essentially of a screwed onto the base housing 1 linear guide rail 4, which cooperates - not shown here - rolling elements with an upper linear guide carriage 5. The linear guide carriage 5 is screwed to the carriage unit 2. The carriage unit 2 consists essentially of a carriage plate 6 extending along the base housing 1, from which a plate head section 7 is arranged transversely. The basic housing 1 is constructed symmetrically along its longitudinal axis and crossed by two cylindrical recesses 8a, 8b. The two cylinder-like recesses 8a and 8b within the base housing 1 serve to receive a respective piston unit 9a, 9b, with which the carriage unit 2 is reciprocated. For this purpose, the distal end of the piston rod 10 adjoining the piston unit 9a and 9b (here only one shown) is fastened to the plate head section 7 extending transversely to the carriage plate 7.

Zur Druckmittelbeaufschlagung sind am Grundgehäuse 1 zwei äußere Anschlüsse 11a, 11b vorgesehen. Die Anschlüsse 11a und 11b sind an der einen Flankenseite 12a des Grundgehäuses 1 angeordnet. Die gleichen äußeren Anschlüsse sind redundant auch an der gegenüberliegenden Flankenseite 12b des Grundgehäuses 1 (nicht ersichtlich) vorgesehen. Dementsprechend besitzt die eine Flankenseite 12a auch eine doppelte Sensomut 13a, die auch an der gegenüberliegenden Flankenseite 12b (nicht ersichtlich) vorhanden ist. Die äußere Sensomut 13a und die redundante, gegenüberliegende Sensornut dient hier der Aufnahme von - nicht weiter dargestellten - Sensormitteln zur Erfassung der Kolbenstellung innerhalb des Grundgehäuses 1 zu steuerungstechnischen Zwecken.For pressurizing the housing 1, two outer terminals 11 a, 11 b are provided on the base housing. The terminals 11 a and 11 b are arranged on the one flank side 12 a of the base housing 1. The same external connections are also provided redundantly on the opposite flank side 12b of the basic housing 1 (not shown). Accordingly, the one flank side 12a also has a double sensor groove 13a which is also present on the opposite flank side 12b (not shown). The outer sensor groove 13a and the redundant, opposite sensor groove serve here to receive sensor means (not shown) for detecting the piston position within the base housing 1 for control purposes.

Die symmetrische redundante Anordnung der Anschlüsse 11a und 11b zur Druckluftbeaufschlagung sowie der Sensomut 13a an den beiden einander gegenüberliegenden Flankenseiten 12a und 12b des Grundgehäuses 1 ermöglicht es, je nach Einbaubedingungen wahlweise die Montage der Sensormittel bzw. den Druckluftanschluss entweder von der einen Flankenseite 12a oder der anderen Flankenseite 12b eher zu realisieren. Hierbei sind natürlich die ungenutzten Anschlüsse auf der verbleibenden Flankenseite 12a bzw. 12b über geeignete Verschlusselemente zu verschließen.The symmetrical redundant arrangement of the connections 11a and 11b for the application of compressed air and the Sensomut 13a on the two opposite edge sides 12a and 12b of the base housing 1 allows, depending on the installation conditions either the installation of the sensor means or the compressed air connection either from the one flank side 12a or other flank side 12b rather realize. In this case, of course, the unused terminals on the remaining side of the flanks 12a and 12b are closed by suitable closure elements.

Die pneumatische Antriebseinheit umfasst weiterhin auch Anschlagmittel zur Begrenzung des Hubs der Schlitteneineinheit 2. Die Anschlagmittel sind verstellbar ausgebildet, um die Hublänge und Endanschlagsposition der Schlitteneinheit 2 an unterschiedliche bauliche Bedingungen anpassen zu können. Hierfür werden Betätigungselemente 14a, 14b eingesetzt.The pneumatic drive unit further includes stop means for limiting the stroke of the Schlitteneineinheit 2. The stop means are adjustable designed to adjust the stroke length and end stop position of the carriage unit 2 to different structural conditions can. For this purpose, actuators 14a, 14b are used.

Gemäß Fig.2 sind die Betätigungselemente 14a und 14b zum Verstellen der Anschlagmittel im Bereich derjenigen Stirnseite 15 des Grundgehäuses 1 angeordnet, die der dem Plattenkopfabschnitt 7 benachbarten Stirnseite 16 des Grundgehäuses 1 gegenüberliegt. Die verstellbaren Anschlagmittel umfassen zwei Anschlagelemente 17a und 17b. Das Betätigungselement 14a ist dabei dem ersten Anschlagelement 17a zugeordnet, wogegen das Betätigungselement 14b dem zweiten Anschlagelement 17b zugeordnet ist. Das erste Anschlagelement 17a ist zur Bildung eines verstellbaren Einfahranschlags der pneumatischen Antriebseinheit ortsfest gegenüber dem Grundgehäuse 1 angeordnet. Da das zweite Anschlagelement 17b zur Bildung eines Ausfahranschlags dient, ist dieses ortsfest gegenüber der Schlitteneinheit 2 angeordnet.According to Figure 2, the actuating elements 14a and 14b are arranged for adjusting the stop means in the region of that end face 15 of the base housing 1, which is opposite to the plate head portion 7 adjacent end face 16 of the base housing 1. The adjustable stop means comprise two stop elements 17a and 17b. The actuating element 14a is associated with the first stop element 17a, whereas the Actuator 14b is associated with the second stop element 17b. The first stop element 17a is arranged stationarily relative to the base housing 1 to form an adjustable retraction stop of the pneumatic drive unit. Since the second stop element 17b serves to form an extension stop, it is arranged stationary relative to the slide unit 2.

Das zweite Anschlagelement 17a ist entweder links oder rechtsseitig des ersten, seitens des Grundgehäuses 1 angeordneten Anschlagelements 17b montierbar, um je nach herrschenden Platzverhältnissen die Lage des zweiten Anschlagelements frei wählen zu können. Dies wird durch den längssymmetrischen Aufbau des Grundgehäuses 1 ermöglicht.The second stop element 17a can be mounted either on the left or on the right side of the first stop element 17b arranged on the side of the basic housing 1 in order to be able to freely select the position of the second stop element depending on the prevailing space conditions. This is made possible by the longitudinally symmetrical structure of the basic housing 1.

BezugszeichenlisteLIST OF REFERENCE NUMBERS

1.1.
GrundgehäuseHeaders
2.Second
Schlitteneinheitslide unit
3.Third
LinearführungsmittelLinear guide means
4.4th
LinearführungsschieneLinear guide rail
5.5th
LinearführungswagenLinear guide carriage
6.6th
Schlittenplattecarriage plate
7.7th
PlattenkopfabschnittDisk head section
8.8th.
Ausnehmungrecess
9.9th
Kolbeneinheitpiston unit
10.10th
Kolbenstangepiston rod
11.11th
Anschlussconnection
12.12th
Flankenseiteflank side
13.13th
SensomutSensomut
14.14th
Betätigungselementactuator
15.15th
Stirnseitefront
16.16th
Stirnseitefront
17.17th
Anschlagelementstop element

Claims (8)

  1. A pneumatic drive unit with a base housing (1), on which a slide unit (2) is mounted and longitudinally displaceable via a longitudinal guiding means (3), wherein the base housing (1) has at least one cylinder-like hole (8a, 8b) extending through it, to which pressurized air can be applied via external ports (11 a, 11 b) and which serves to receive one piston unit (9a, 9b) each to form a drive able to move the slide unit (2) by the application of pressurized air, its travel being limited by adjustable stop means and able to be detected by sensor means accommodated in at least one external sensor groove (13a) arranged at said base housing (1) and extending parallel to the cylinder-like hole (8a, 8b),
    characterised in that, for realizing a redundant duplicate arrangement, the ports (11a, 11b) and the sensor groove (13a) are both integrated on two opposite flanking sides (12a, 12b) of the base housing (1), which can be optionally used for mounting the sensor means or the pressurized-air port, respectively, wherein the unused ports on the remaining flanking side (12a or 12b, respectively) can be closed off via closure means.
  2. A pneumatic drive unit according to claim 1,
    characterised in that at least said base housing (1) is constructed symmetrically along its longitudinal axis.
  3. A pneumatic drive unit according to claim 1,
    characterised in that said piston unit (9a, 9b) consists of a piston assembly with a piston rod (10) extending from it, which is fixed at its distal end to the slide unit (2).
  4. A pneumatic drive unit according to claim 3,
    characterised in that fixing on said slide unit (2) is done by means of a plate head section (7) extending transversely to the slide plate (6).
  5. A pneumatic drive unit according to claim 4,
    characterised in that actuating elements (14a, 14b) are arranged to adjust the stop means in the area of that end face (15) of the base housing (1) which is opposite the end face (16) of the base housing (1) which is adjacent to the plate head section (7).
  6. A pneumatic drive unit according to claim 1,
    characterised in that the adjustable stop means consists of a first stop element (17a) and a second stop element (17b), wherein the first stop element (17a), which is adjustable with an associated actuating element (14a) is fixedly positioned with respect to the base housing (1) to form an introduction stop and the second stop element (17b), which is adjustable with an associated actuating element (14b) is fixedly positioned with respect to the slide unit (2) to form an introduction stop.
  7. A pneumatic drive unit according to claims 2 and 6,
    characterised in that the first stop element (17b) is centrally positioned on the base housing (1) and the second stop element (17a) is mountable either on the left or on the right side adjacent to the first stop element (17b) at the slide unit (2).
  8. A pneumatic drive unit according to any one of the preceding claims,
    characterised in that the linear guiding means (3) are formed in the manner of a linear ball guide and essentially consist of a linear guide carriage (5) mounted on a slide plate (6) of the slide unit (2) which interacts with a linear guide rail (4) mounted on the base housing (1).
EP20040104723 2003-09-29 2004-09-28 Universal pneumatic drive unit Expired - Fee Related EP1519060B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE20314973U DE20314973U1 (en) 2003-09-29 2003-09-29 Universal pneumatic drive unit
DE20314973U 2003-09-29

Publications (2)

Publication Number Publication Date
EP1519060A1 EP1519060A1 (en) 2005-03-30
EP1519060B1 true EP1519060B1 (en) 2006-11-02

Family

ID=30470018

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20040104723 Expired - Fee Related EP1519060B1 (en) 2003-09-29 2004-09-28 Universal pneumatic drive unit

Country Status (2)

Country Link
EP (1) EP1519060B1 (en)
DE (2) DE20314973U1 (en)

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2316132B (en) 1996-08-13 1999-02-17 Smc Kk Linear actuator
DE29706098U1 (en) 1997-04-05 1997-05-28 Festo Kg Carriage drive device

Also Published As

Publication number Publication date
DE502004001887D1 (en) 2006-12-14
EP1519060A1 (en) 2005-03-30
DE20314973U1 (en) 2004-01-15

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