EP1519060B1 - Unité d'entraînement pneumatique universelle - Google Patents

Unité d'entraînement pneumatique universelle 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
Authority
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 - Lifetime
Application number
EP20040104723
Other languages
German (de)
English (en)
Other versions
EP1519060A1 (fr
Inventor
Heiko Merz
Frédéric Demetz
Sonia Dubos
Jean-Michel Lécrivain
Serge Woltèche
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Bosch Rexroth AG
Original Assignee
Bosch Rexroth AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Bosch Rexroth AG filed Critical Bosch Rexroth AG
Publication of EP1519060A1 publication Critical patent/EP1519060A1/fr
Application granted granted Critical
Publication of EP1519060B1 publication Critical patent/EP1519060B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Actuator (AREA)

Claims (8)

  1. Unité d'entraînement pneumatique, comportant un boîtier de base (1) sur lequel est agencé un ensemble formant chariot (2) avec faculté de translation longitudinale via des moyens de guidage linéaire (3), le boîtier de base (1) étant traversé par au moins un évidement cylindrique (8a, 8b) qui est susceptible d'être alimenté en air comprimé via des raccords extérieurs (11a, 11b) et qui sert à recevoir une unité à piston respective (9a, 9b) pour former un entraînement susceptible de déplacer l'ensemble formant chariot (2) via l'air comprimé, dont la course est limitée par des moyens de butée déplaçables et peut être détectée par des moyens capteurs qui sont logés dans au moins une gorge de détection extérieure (13a) ménagée sur le boîtier de base (1) et s'étendant parallèlement à l'évidement cylindrique (8a, 8b),
    caractérisé en ce que pour réaliser un agencement double redondant, les raccords (11a, 11b) et la gorge de détection (13a) sont intégrés simultanément sur deux côtés de flanc (12a, 12b) opposés l'un à l'autre du boîtier de base (1), qui sont utilisables au choix pour le montage des moyens capteurs ou du raccord à air comprimé, en fonction des conditions de montage, les raccords non utilisés sur le côté de flanc restant (12a ou 12b) pouvant être fermés par des éléments obturateurs.
  2. Unité d'entraînement pneumatique selon la revendication 1,
    caractérisée en ce qu'au moins le boîtier de base (1) est conçu de façon symétrique le long de son axe longitudinal.
  3. Unité d'entraînement pneumatique selon la revendication 1,
    caractérisée en ce que l'unité à piston (9a, 9b) est constituée par un agencement de piston avec une tige de piston (10) partant de celui-ci et fixée par son extrémité distale sur l'ensemble formant chariot (2).
  4. Unité d'entraînement pneumatique selon la revendication 3,
    caractérisée en ce que
    la fixation sur l'ensemble formant chariot (2) s'effectue via une portion de tête en plaque (7) qui s'étend transversalement à partir de la plaque de chariot.
  5. Unité d'entraînement pneumatique selon la revendication 4,
    caractérisée en ce que des éléments d'actionnement (14a, 14b) pour déplacer les moyens de butée sont agencés dans la zone de celui des côtés frontaux (15) du boîtier de base (1), qui est opposé au côté frontal (16) du boîtier de base (1) voisin de la portion de tête en plaque (7).
  6. Unité d'entraînement pneumatique selon la revendication 1,
    caractérisée en ce que les moyens de butée déplaçables sont constitués par un premier élément de butée (17a) et par un second élément de butée (17b), le premier élément de butée (17a) déplaçable avec un élément d'actionnement associé (14a) étant agencé de façon stationnaire par rapport au boîtier de base (1) pour former une butée de rétraction, et le second élément de butée (17b) déplaçable avec un élément d'actionnement associé (14b) étant agencé de façon stationnaire par rapport à l'ensemble formant chariot (2) pour former une butée de déploiement.
  7. Unité d'entraînement pneumatique selon les revendications 2 et 6,
    caractérisée en ce que le premier élément de butée (17b) est agencé au milieu sur le boîtier de base (1), et en ce que le second élément de butée (17a) est susceptible d'être monté sur l'ensemble formant chariot (2) soit du côté gauche soit du côté droit dudit boîtier au voisinage du premier élément de butée (17b).
  8. Unité d'entraînement pneumatique selon l'une des revendications précédentes,
    caractérisée en ce que les moyens de guidage linéaire (3) sont réalisés à la manière d'un guidage linéaire à billes et sont constitués essentiellement par un véhicule de guidage linéaire (5) qui est monté sur une plaque de chariot (6) de l'ensemble formant chariot (2) et qui coopère avec un rail de guidage linéaire (4) monté du côté boîtier de base (1).
EP20040104723 2003-09-29 2004-09-28 Unité d'entraînement pneumatique universelle Expired - Lifetime EP1519060B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE20314973U DE20314973U1 (de) 2003-09-29 2003-09-29 Universell einsetzbare pneumatische Antriebseinheit
DE20314973U 2003-09-29

Publications (2)

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

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EP20040104723 Expired - Lifetime EP1519060B1 (fr) 2003-09-29 2004-09-28 Unité d'entraînement pneumatique universelle

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EP (1) EP1519060B1 (fr)
DE (2) DE20314973U1 (fr)

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 (de) 1997-04-05 1997-05-28 Festo Kg, 73734 Esslingen Schlitten-Antriebsvorrichtung

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

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