EP2548700B1 - Outil pneumatique - Google Patents

Outil pneumatique Download PDF

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Publication number
EP2548700B1
EP2548700B1 EP20110005938 EP11005938A EP2548700B1 EP 2548700 B1 EP2548700 B1 EP 2548700B1 EP 20110005938 EP20110005938 EP 20110005938 EP 11005938 A EP11005938 A EP 11005938A EP 2548700 B1 EP2548700 B1 EP 2548700B1
Authority
EP
European Patent Office
Prior art keywords
sensor
actuating part
switching element
tool according
head housing
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.)
Not-in-force
Application number
EP20110005938
Other languages
German (de)
English (en)
Other versions
EP2548700A1 (fr
Inventor
Luciano Migliori
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.)
Univer SpA
Original Assignee
Univer SpA
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 Univer SpA filed Critical Univer SpA
Priority to EP20110005938 priority Critical patent/EP2548700B1/fr
Publication of EP2548700A1 publication Critical patent/EP2548700A1/fr
Application granted granted Critical
Publication of EP2548700B1 publication Critical patent/EP2548700B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B5/00—Clamps
    • B25B5/06—Arrangements for positively actuating jaws
    • B25B5/12—Arrangements for positively actuating jaws using toggle links
    • B25B5/122—Arrangements for positively actuating jaws using toggle links with fluid drive
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B5/00—Clamps
    • B25B5/16—Details, e.g. jaws, jaw attachments

Definitions

  • the invention relates to a pneumatically operated working device, in particular for use in the bodywork of the motor vehicle industry, with a particular double-acting cylinder, a cylinder housing, a displaceable in this piston and a connected thereto, linearly displaceable and out of the cylinder housing out piston rod Actuating an arm, in particular clamping arm or swivel arm, of the working device, wherein the arranged outside of the cylinder housing portion of the piston rod is disposed within a head housing of the working device and at least one switching element receives, which with a in the Head housing mounted scanning device is provided with sensor means for detecting a position of the switching element.
  • Such implements in which the piston rod acts on the arm via a toggle lever, in particular tensioning arm or pivoting arm, of the working device, are usually referred to as a toggle lever tensioning device or toggle lever pivoting device.
  • the clamping arm In the work tool with clamping arm this is usually the task to stretch a workpiece or an object.
  • the clamping arm In one end position of the displaceable piston, the clamping arm assumes its clamping position, while in the other end position of the piston, the clamping arm is in the open position.
  • the piston rod can be adjustable in length, so that different opening angle of the clamping arm can be displayed by means of the implement. In this case, the same position of the switching element in the clamping position of the clamping arm and a variable depending on the selected length of the piston rod position of another switching element by means of the interrogator is queried by means of the interrogator on the one hand.
  • Such a working device which is designed as a toggle lever device, is in the EP 2 055 430 A1 described. It has a switching element, which is connected to the part of the piston rod, which is fixed axially to the piston, further comprises a further switching element, which is connected to the part of the piston rod, which is not fixed axially to the piston.
  • the position of the piston of the double-acting cylinder is detected by means of the interrogator, which has two sensor means which are acted upon in contact with the two switching elements in their end positions. Since the distance between these sensor means substantially corresponds to the distance of the two switching elements in the longitudinal extent of the piston rod, a relatively large extension of the interrogator in the region of the sensor means in the longitudinal extension of the piston rod is required in this working device. This is essential Lost space for attaching the implement in the head housing lost.
  • a similarly designed toggle tensioning device is in the EP 1 849 559 A1 described.
  • Object of the present invention is to develop a working device of the type mentioned so that an end position of the at least one switching element with a simplified design of the sensor means of the interrogator can be detected.
  • the interrogator has an actuating part that is displaceable against contact of switching element and actuator against a restoring force
  • the sensor means comprise at least one electrical sensor for detecting the position of the actuating part with respect to the sensor
  • a displaceable actuating part which when approaching the end position of the piston or piston rod or associated switching element is contacted by the switching element and is moved over this, contrary to the restoring force.
  • This shift is detected by the electrical sensor associated with the switching element, whereby the position, in particular end position, of this switching element is interrogated.
  • the displaceable actuating part requires that it only has to be displaced by a small actuating length from the one switching element or in opposite directions from the two switching elements, with which the electrical sensor for detecting the position of the actuating part only has to have relatively small dimensions in the direction of displacement of the piston rod ,
  • this sensor or the sensors having part of the interrogator can therefore be designed very compact. Since the sensor or the sensors are preferably arranged outside the head housing, in particular the sensors having sensor means are connected there to the head housing, only little space is needed there, so that a fairly large space for attaching or storing the implement is present.
  • the sensor means are arranged outside the head housing.
  • the respective sensor is preferably designed as an electrical, in particular electronic sensor.
  • the arrangement of the sensor means outside the head housing has the great advantage that no tuned to the sensor means design of the implement in the region of the interior of the head housing is provided. It is only necessary to store the displaceable actuating part in the head housing and to provide means on the control part, which are guided to the outside of the head housing, so that they can then interact with the sensor means.
  • the actuator is disposed substantially within the head housing and having a lug which passes through a hole in the head housing, wherein the sensor means, thus the sensor or the sensors, detecting the position or positions of the Approach serves.
  • the hole is formed as a narrow, elongated slot in the housing in the direction of displacement of the actuator.
  • the length of the slot substantially corresponds to the adjustment of the approach plus the extension of the approach in the longitudinal extent of the piston rod.
  • the width of the slot is slightly wider to choose than the width of the neck. Since the slot in the head housing thus has to have only very small dimensions, even a minimal access area is formed to the head housing, so it is not significantly required to seal the head housing out there.
  • the sensor means in particular the sensor or sensors, are mounted in the region of the bearing of the respective sensor in the head housing, in a housing section which is in one piece. Accordingly, it is not necessary to divide the head housing in the region of the sensor means, in particular in a plane which is perpendicular to the longitudinal extent of the piston rod. As a result, the head housing in the region of the mounting of the sensor (s) can be made structurally particularly simple.
  • the interrogation device can have a quadrangular base area in the region of the sensor means, the sensor means being connected to the head housing in the area of this base area.
  • the piston rod receives two switching elements, and the actuating part by means of the two switching elements in the opposite direction in each case against the restoring force is displaceable, and the interrogator of the detection of a position of the respective switching element is used.
  • the setting member is formed to have two portions that are in protrude the path of movement of the two switching elements during movement of the piston rod. These two sections are in particular formed as projections, which are arranged perpendicular to the longitudinal axis of the piston rod.
  • the sensor when not shifted by means of the switching elements or the control part this assumes a neutral position in which the sensor does not detect the position of the control part.
  • the sensor only detects the position of the setting part when the adjusting part is displaced by means of the switching element or elements.
  • the sensor means can be designed in many different ways, provided that they are suitable for detecting the position of the actuator displaced in one and / or the other direction. It is considered particularly advantageous if the sensor means comprise at least one optical sensor, in particular an optical diode, for detecting the position of the actuator, in particular the attachment of the actuator. In particular, all sensors of the interrogator are preferably designed as optical sensors as optical diodes. The two sensors are arranged, in particular, at a distance in the adjustment direction of the setting part, which substantially corresponds to the extent of the projection of the setting part in this direction.
  • the travel of the actuator is thus equal to the action of two associated with a variable-length piston rod switching elements.
  • the restoring force on the actuator is applied in particular by spring force.
  • two springs are preferably provided, which act in the opposite direction to the control part.
  • the respective spring engages on the one hand on the control part, on the other hand on a relative to the head housing fixed to the housing component.
  • the implement has a double-acting cylinder 2 with cylinder housing 3, a displaceable in the cylinder housing 3 piston 4 and connected to the piston 4, linearly displaceable piston rod 5.
  • the piston rod 5 is led out of the cylinder housing 3 and consists of two piston rod parts, thus the piston rod member 6 and the Kolbenstangenteü 7.
  • the piston rod member 6 is axially immovable, but rotatably and sealed stored in the piston 4 and passes through this.
  • the piston rod part 6 can be rotated.
  • the piston rod part 6 is provided with a bore 9 with internal thread into which an externally threaded portion 10 of the piston rod part 7 is screwed.
  • the piston rod part 7 is mounted so that it can not be rotated about its longitudinal axis. In the region of its end remote from the piston rod part 6, it has a bearing axle 11 for receiving a toggle lever 12.
  • the bearing axis 11 facing away from the end of the toggle lever 12 is rotatably connected to a bearing shaft 13 which is pivotally mounted in a head housing 14 of the implement 1.
  • the head housing 14 is formed divided in the longitudinal extent of the piston rod 5 and the housing parts denoted by the reference numerals 15 and 16.
  • the bearing shaft 13 is guided on both sides of the head housing 14 out of this and both ends of the bearing shaft 13 formed as a square, for receiving a not illustrated, consisting of two legs clamping arm, wherein the two legs of the clamping arm in the region of the bearing shaft 13 opposite ends connected to each other are.
  • Fastening means, in particular screws 17, connect the two housing parts 15 and 16.
  • the two lever parts of the toggle lever 15 are denoted by the reference numerals 18 and 19 and these lever members pivotally connected to each other by means of an axis 20.
  • the head housing 14 is connected to the cylinder 2, in particular screwed.
  • the cylinder 2 is designed as a double-acting cylinder, in which a pressure chamber 21 of the cylinder 2 compressed air is supplied through a feed opening 22 in the bottom region of the cylinder 2, for moving the piston 4 in the direction of the head housing 14 for transferring the toggle lever 12 in his in FIG. 7 illustrated end position in which the two lever members 18 and 19 of the bell crank 12 occupy a right angle to each other and the unillustrated clamping lever is in its clamping position in which he clamps a workpiece or an object against a base.
  • air in the other pressure chamber 23 is discharged from the lid region of the cylinder 2 through the feed opening 24 in fluid communication therewith, in this case as a discharge opening for compressed air.
  • Compressed air is supplied through the supply port 24 into the pressure chamber 23, and then it has the pressure chamber 21, the function of an exhaust air space, wherein air in the pressure chamber 21 is discharged through the supply port 22.
  • the formation of the interrogator for detecting the angular position of the clamping lever of the toggle lever clamping device is important:
  • a sleeve 25 is axially fixed in the piston rod part 7 and rotatably mounted to the piston rod part 7, wherein the sleeve 25, a switching element 26 is connected.
  • the sleeve 25 and the switching element 26 are in one piece.
  • another switching element 27 is mounted in the region of which, the toggle lever 12 facing the end. This forms a part with a ring 28 which is axially fixed in the region of said end of the piston rod 6, but rotatable relative to the piston rod part 6.
  • the switching element 27 is arranged in a groove between the two housing parts 15 and 16, so that the switching element 27 rotates relative to the piston rod part 6 upon rotation of the piston rod part 6 by means of the adjusting device 8, but due to the leadership in the head housing 14 exclusively in the axial direction of Pistons 5 relative to the other piston rod part 6 can move. Regardless of which position the two piston rod parts 6 and 7 occupy to each other, both switching elements 26 and 27 are thus always directed radially correspondingly directed to an interrogator 29 for detecting the position of the two switching elements 26 and 27 out.
  • the interrogator 29 has an actuating part 30 which is displaceable in contact with the one switching element 26 parallel to the longitudinal axis of the piston rod 5 in the direction of the toggle lever 2 and is displaceable in contact with the switching element 27 in the opposite direction, thus in the direction of the cylinder 2. In both directions, the displacement takes place counter to a restoring force of a spring arrangement.
  • the interrogator 29 further comprises sensor means 31 which are substantially connected by a sensor device connected to the head housing 14 with two electronic sensors 33 and 34 is formed. The sensor 33 is used to detect the position of the adjusting member 30 upon action of the switching element 26 on the actuator 30 and the sensor 34 detecting the position of the actuator 30 upon action of the switching element 27 on the actuator 30.
  • the sensor means 31, thus the two sensors 33 and 34 are disposed outside of the head housing 14.
  • the sensor device 32 is mounted in the head housing 14 and covers a disposed between the two housing parts 15 and 16 plate portion 35 of the head housing 14, which is provided with a short, narrow extending in the axial direction of the piston rod 5 slot 36.
  • the sensor device 32 is fastened to the head housing 14 in the region of the plate section 35 by means of two screws 37 which cooperate with threaded bores in the plate section 36.
  • the adjusting part 30 is arranged substantially inside the head housing 14 and has a projection 38 which passes through the slot 36 in the plate section 35.
  • the two sensors 33 and 34 serve to detect the position of the projection 38.
  • the adjusting member 30 has, based on the longitudinal extent, in the region of the respective opposite end, a projection 39 and a projection 40.
  • the projection 39 protrudes upon movement of the piston rod 5 in the path of movement of the switching element 26 and the projection 40 in the path of movement of the switching element 27.
  • the two sensors 33 and 34 which are formed as optical diodes, are arranged at a distance in the adjustment direction of the actuating part 20 which substantially corresponds to the extent of the projection 38 in this direction.
  • the projection 38 is positioned between the two sensors 33 and 34, whereby none of the optical sensors is covered by the projection 38 and thus none of the sensors 33, 34 detects the position of the actuator 30.
  • the actuator 30 is due to spring action in this neutral position. Structurally this is accomplished by Formation of the actuator 30 with two slots 41 which pass through the bearing 42 mounted in the head housing 14 and thus allow a relative, limited displacement of the actuator 30 with respect to the head housing 2. Between a middle part 43 and each pin 42, a helical compression spring 44 is supported, so that upon displacement of the adjusting member 30 in one direction by means of the switching element 26, a spring 44, starting from the neutral position of the setting member 30 stretched and the other spring 44 is relaxed and upon displacement of the actuator 30 in the other direction by means of the switching element 27, the reverse voltage conditions in the two springs 44 occur.
  • the switching element 26 Shortly before reaching the right angle angled position of the toggle lever 12, the switching element 26 contacts the projection 39 of the actuating part 30 and converts this counter spring force into the end position according to FIG. 7 , in which the optical diode 33 is covered by means of the insert 38 and thus by means of the interrogator 29, this position of the switching element 26 is queried. If the piston 5 is moved out of this position, so that the bearing axis 11 of the toggle lever 12 is moved in the direction of the cylinder 2, the switching element 26 comes out of contact with the projection 39, so that under spring action, the control member 30 is returned to its neutral position.
  • the switching element 27 Shortly before reaching the other end position of the piston 4 in the region of the cylinder bottom, the switching element 27 comes into contact with the projection 40 of the actuator 30 and moves the actuator against spring action in the direction of the piston 4, so that in the end position of the piston 4 of the approach 38 the covers another optical diode 34, whereby by means of this diode, the position of the switching element 37 is detected. If the piston 4 is moved again in the direction of the toggle lever 12, the switching element 27 comes out of contact with the projection 40 of the actuating part 30 and this consequently again in its neutral position.
  • the relatively large movement of the piston 4 and the piston rod 5 is transmitted to the actuator 30, which covers a much shorter distance of movement, therefore, only one that required to perform the two switching operations by the switching elements 26 and 27 is, and this short movement of the actuator 30 and thus of the projection 38 is detected by sensors 17 and 34 placed relatively close to one another. Accordingly, it is sufficient to provide the narrow, elongated slot 36 in the plate portion 35, wherein the width of the slot is only slightly larger than the thickness of the projection 38 and the length of the slot is only slightly larger than the displacement of the actuator 30. It is therefore not necessary to provide separate means for sealing the head housing 14 in the area of the interrogator 29. Incidentally, the sensor means 31 may be placed outside the head housing 14.
  • the slot 36 only fulfills the function of creating the passage for the projection 38, thus the output for the actuator 30.
  • the sensors 33 and 34 are not in the slot 36 and also not within the head housing 14.
  • the sensor device 32 can therefore be easily adjusted. It is not necessary to provide a microprocessor, because no complicated functions by means of the sensor device 32, such as a set or reset function must be realized.
  • the sensor means 31 can be easily assembled and disassembled. You can find 1 for different tools. Both the open and the closed position of the clamping lever can be detected with high precision.
  • the sensor device 32 has a quadrangular base surface and the plate section 35 is correspondingly provided in quadrilateral for receiving the sensor device 32 with a small gap between sensor device 32 and limiting projections 45 of the head housing 14.
  • the head housing 14 further has between the plate portion 35 and the bearing shaft 13 bearing surfaces 46 on all four sides of the head housing 14 for supporting the head housing 14 and thus of the implement 1, wherein the storage takes place in the region of a surface 46.
  • There are threaded holes 47 are provided for screwing the head housing 14, for example, to screw on a robot arm.
  • FIGS. 12 to 21 illustrate the basic structure of a working device 1, which is designed as a toggle lever device, and its mode of action.
  • the structure of the toggle lever device is very similar to that of the toggle lever clamping device described in detail above, so that identically designed components are designated by the same reference numerals for the sake of simplicity.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Actuator (AREA)

Claims (15)

  1. Outillage (1) à entraînement pneumatique, notamment conçu pour être utilisé dans la construction de carrosserie dans l'industrie automobile, comprenant un vérin (2) notamment à double action qui présente un boîtier cylindrique (3), un piston (4) qui coulisse dans celui-ci et une tige de piston (5) reliée à celui-ci, à coulissement linéaire et sortant du boîtier cylindrique (3) pour actionner un bras, notamment un bras de serrage ou un bras oscillant (48), de l'outillage (1), la zone de la tige de piston (5) qui est disposée à l'extérieur du boîtier cylindrique (3) étant disposée à l'intérieur d'un boîtier de tête (14) de l'outillage (1) et accueillant au moins un élément de commutation (26, 27) qui est muni d'un dispositif d'interrogation (29) muni de moyens de détection (31) et logé dans le boîtier de tête (14) pour détecter une position de l'élément de commutation (26), caractérisé en ce que le dispositif d'interrogation (29) présente une pièce de commande (30), en ce qu'en cas de contact entre l'élément de commutation (26, 27) et la pièce de commande (30) il peut coulisser contre une force de rappel, et en ce que les moyens de détection (31) présentent au moins un capteur électrique (33, 34) pour détecter la position de la pièce de commande (30) par rapport au capteur (33, 34).
  2. Outillage selon la revendication 1, caractérisé en ce que les moyens de détection (31), de préférence le capteur (33, 34) électrique, notamment électronique, sont ou est disposé(s) à l'extérieur du boîtier de tête (14).
  3. Outillage selon la revendication 2, caractérisé en ce que les moyens de détection (31) ou le capteur (33, 34) sont ou est logé(s) dans le boîtier de tête (14).
  4. Outillage selon l'une des revendications 1 à 3, caractérisé en ce que la pièce de commande (30) est disposée pour l'essentiel à l'intérieur du boîtier de tête (14) et présente un appendice (38) qui traverse un trou (36) dans le boîtier de tête (14), le capteur (33, 34) servant à la détection de la position de l'appendice (38).
  5. Outillage selon l'une des revendications 1 à 4, caractérisé en ce que la tige de piston (5) accueille un ou deux éléments de commutation (26, 27) et la pièce de commande (30) peut coulisser au moyen de l'un des éléments de commutation (26) ou des deuxièmes éléments de commutation (26, 27) dans des directions opposées à chaque fois contre la force de rappel et le dispositif d'interrogation (29) sert à détecter deux positions de l'un des éléments de commutation (26) ou à détecter une position de l'élément de commutation (26, 27) correspondant.
  6. Outillage selon la revendication 5, caractérisé en ce que la pièce de commande (30) présente deux portions (39, 40), notamment deux parties en saillie (39, 40), qui font saillie dans le trajet de déplacement de l'un des éléments de commutation (26) ou des deux éléments de commutation (26, 27) lors du mouvement de la tige de piston (5).
  7. Outillage selon la revendication 5 ou 6, caractérisé en ce que lorsque la pièce de commande (30) n'est pas coulissée au moyen du ou des éléments de commutation (26, 27), celle-ci adopte une position neutre dans laquelle le capteur (33, 34) ne détecte pas la position de la pièce de commande (30).
  8. Outillage selon l'une des revendications 5 à 7, caractérisé en ce que lorsque la pièce de commande (30) a coulissé au moyen du ou des éléments de commutation (26, 27), le capteur (33, 34) détecte la position de la pièce de commande (30).
  9. Outillage selon l'une des revendications 1 à 8, caractérisé en ce que les moyens de détection (31) présentent au moins un capteur optique (33, 34), notamment une diode optique (33, 34) pour détecter la position de la pièce de commande (30), notamment de l'appendice (38) de la pièce de commande (30).
  10. Outillage selon la revendication 9, caractérisé en ce que deux capteurs optiques (33, 34), notamment deux diodes optiques (33, 34), sont prévus, les deux capteurs (33, 34) étant disposés à un écart dans le sens du positionnement de la pièce de commande (30) qui correspond pour l'essentiel à la projection de l'appendice (38) dans cette direction.
  11. Outillage selon l'une des revendications 1 à 10, caractérisé en ce que la force de rappel est appliquée par la force d'un ressort, notamment au moyen de deux ressorts (44) qui agissent en sens inverse sur la pièce de commande (30).
  12. Outillage selon l'une des revendications 4 à 11, caractérisé en ce que le trou (36) est réalisé sous la forme d'une étroite fente allongée dans le boîtier (14) dans le sens du coulissement de la pièce de commande (30).
  13. Outillage selon l'une des revendications 2 à 12, caractérisé en ce que les moyens de détection (31), dans la zone du logement des moyens de détection (31) dans le boîtier de tête (14), sont logés dans une portion de boîtier (35) qui est monobloc.
  14. Outillage selon l'une des revendications 1 à 13, caractérisé en ce que le composant des moyens de détection (31) est un dispositif de détection (32) qui accueille les capteurs (33, 34), le dispositif de détection (32) présentant une surface de base rectangulaire et le dispositif de détection (32) étant relié avec le boîtier de tête (14) dans la zone de cette surface de base.
  15. Outillage selon l'une des revendications 1 à 14, caractérisé en ce que la course de commande de la pièce de commande (30) est identique lors de l'action des deux éléments de commutation (26, 27) reliés à une tige de piston (5) à longueur variable.
EP20110005938 2011-07-20 2011-07-20 Outil pneumatique Not-in-force EP2548700B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP20110005938 EP2548700B1 (fr) 2011-07-20 2011-07-20 Outil pneumatique

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP20110005938 EP2548700B1 (fr) 2011-07-20 2011-07-20 Outil pneumatique

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Publication Number Publication Date
EP2548700A1 EP2548700A1 (fr) 2013-01-23
EP2548700B1 true EP2548700B1 (fr) 2014-06-25

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Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2821181B1 (fr) 2013-07-02 2015-03-04 UNIVER S.p.A. Dispositif de serrage
EP2921260B1 (fr) 2014-03-20 2016-08-31 UNIVER S.p.A. Appareil à entraînement pneumatique
EP3050673B1 (fr) 2015-01-28 2017-03-01 UNIVER S.p.A. Dispositif de tension
CN106660194B (zh) * 2015-04-29 2018-06-05 纽迈司股份公司 设置有致动元件和显示致动元件定位的传感部件的致动装置
IT201700084794A1 (it) * 2017-07-25 2019-01-25 Pneumax S P A Dispositivo e metodo di rilevamento di fine corsa e unità di attuazione impiegante gli stessi
EP3575035B1 (fr) 2018-05-29 2022-05-11 UNIVER S.p.A. Outil pneumatique

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2339766A1 (fr) * 1976-02-02 1977-08-26 Polymatic Sa Tete de bridage munie d'un organe controle de position incorpore
FR2550115B1 (fr) * 1983-08-03 1986-06-27 Thombor Rojac Dispositif de serrage
US4664364A (en) * 1986-08-15 1987-05-12 Ozz Industries, Inc. Proximity switch assembly
US4875009A (en) * 1987-12-16 1989-10-17 Eaton Corporation Circuit board and sensing coil positioning system for proximity sensor
ITMI20041584A1 (it) * 2004-08-02 2004-11-02 Univer Spa Sistema per la rilevazione di posizioni operative per un dispositivo di ritegno per pezzi da lavorare
DE202004019495U1 (de) 2004-12-17 2005-03-10 Tünkers Maschinenbau Gmbh Durch Druckmitteldruck, insbesondere pneuamtisch, betätigte Kolben-Zylinder-Einheit, bei welcher ein mit einer Kolbenstange verbundener Kolben durch Druckmittelbeaufschlagung linear bewegbar ist, z.B. druckmittelbetätigbare Kniehebelspannvorrichtung, insbesondere für den Karosseriebau der Kfz-Industrie
ITMI20060834A1 (it) 2006-04-27 2007-10-28 Univer Spa Apparecchiatura di posizionamento e bloccaggio,con copertura regolabile del braccio di lavoro.
DE502007000858D1 (de) 2007-10-29 2009-07-23 Univer Spa Kniehebelspannvorrichtung

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