EP2431615B1 - Capteur et appareil équipé d'un tel capteur - Google Patents

Capteur et appareil équipé d'un tel capteur Download PDF

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Publication number
EP2431615B1
EP2431615B1 EP20110007425 EP11007425A EP2431615B1 EP 2431615 B1 EP2431615 B1 EP 2431615B1 EP 20110007425 EP20110007425 EP 20110007425 EP 11007425 A EP11007425 A EP 11007425A EP 2431615 B1 EP2431615 B1 EP 2431615B1
Authority
EP
European Patent Office
Prior art keywords
sensor
housing
clamping
sensor housing
recess
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.)
Active
Application number
EP20110007425
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German (de)
English (en)
Other versions
EP2431615A3 (fr
EP2431615A2 (fr
Inventor
Falk Grabert
Florian Welker
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.)
Festo SE and Co KG
Original Assignee
Festo SE and Co KG
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.)
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Publication date
Application filed by Festo SE and Co KG filed Critical Festo SE and Co KG
Publication of EP2431615A2 publication Critical patent/EP2431615A2/fr
Publication of EP2431615A3 publication Critical patent/EP2431615A3/fr
Application granted granted Critical
Publication of EP2431615B1 publication Critical patent/EP2431615B1/fr
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Anticipated expiration legal-status Critical

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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 sensor, in particular position sensor, with an elongated sensor housing enclosing a sensor device, which has a recess which is open to the top and the two side surfaces, in which a clamping unit serving for clamping the sensor in an anchoring groove is provided, which is supported on the bottom of the recess is, and at the bottom there is a support surface for supporting the groove bottom of the anchoring groove, wherein the sensor housing includes a recess defining, downwardly open housing main body having two side surfaces defining side walls, one equipped with the sensor device and with a limit the retention space filled by the adhesive properties and the clamping unit has a clamping part and an actuating part which is screwed into engagement with the clamping part, the clamping part and the actuating part being connected to the high axis e of the sensor housing rectified axis of rotation relative to the sensor housing and are rotatable relative to each other, wherein the actuating part at the bottom of the recess without threaded engagement downwardly supported
  • the invention further relates to a working device which contains a working device equipped with at least one such sensor, for example a fluid-operated drive.
  • Such a sensor and a generic working device are from the DE 10 2008 015 447 B4 known.
  • the known sensor can be arranged at any position along the extension of the working device to be used, for example, as an end position sensor for a linearbe Museum working piston of a fluidic actuator.
  • a pressure plate is arranged between the clamping unit and the sensor housing.
  • a working device comprising an implement with two relatively movable device components, wherein the one device component has at least one undercut anchoring groove in which at least one sensor according to the invention is releasably fixed, wherein the other device component at least one for non-contact operation of the Sensor carries suitable actuator.
  • the working device is, for example, a fluid-operated drive, in particular a linear drive.
  • the clamping unit When the clamping unit is activated, it is supported from below on a chamfer or gradation of the anchoring groove and simultaneously presses from above onto the pressure plate, which in turn rests on the bottom bounding the recess, belonging to the housing main part, so that the sensor housing is pressed with its underlying support surface against the groove bottom of the anchoring groove.
  • the pressure plate is used to transmit the forces to be transmitted to the sensor housing by the clamping unit, in particular by the actuating part, which in the sensor according to the prior art can lead to a local overload of the sensor housing and thus the determination of the sensor on the device component, for example the Cylinder housing of a fluidic drive, can question.
  • the pressure plate can serve in a double function as a pivot bearing for example designed as a screw actuator.
  • the actuating part is rotated about the vertical axis and transmits increasingly high pressure forces to the sensor housing as the clamping process progresses.
  • the combination of high pressure forces with the rotational movement of the actuating part can lead to a seizure between the actuating part and the sensor housing without the pressure plate, which is prevented by the insertion of the pressure plate.
  • the pressure plate in an aligned normal to the vertical axis of the sensor housing cross-sectional plane has an extension which is greater than a cross-sectional dimension in the cross-sectional plane or a projection of the actuating part in the cross-sectional plane.
  • the pressure forces introduced by the actuating part on the sensor housing are distributed over an enlarged area and, accordingly, the surface pressure between the actuating part and the sensor housing is reduced.
  • the surface pressure in particular, a flow of the material of the sensor housing is avoided due to high pressure forces.
  • an unwanted reduction in the clamping force of the clamping unit can be prevented, in particular in a configuration of the sensor housing made of a plastic material.
  • the pressure plate is designed as a plane-parallel plate, preferably of a material with a higher compressive strength than the material of the sensor housing, in particular of a metallic material. Due to the design of the pressure plate as a plane parallel plate unwanted force components between the clamping device and sensor housing are avoided.
  • plastic materials such as PEEK (polyetheretherketone) or POM (polyoxymethylene) or metallic materials or ceramic materials can be used as materials with higher pressure resistance compared with the sensor housing produced by way of example from polyethylene or polypropylene or fiber-reinforced plastic.
  • the pressure plate and the sensor housing are materially connected to one another. As a result, a reliable fixing of the pressure plate is ensured on the sensor housing.
  • the cohesive connection can be realized for example by gluing. Additionally or alternatively, a positive connection would be possible, for example, by cooperating undercuts.
  • the pressure plate on two mutually opposite, parallel and flat end surface portions and adjacent thereto, at least partially arcuate end surface portions.
  • the flat end face sections allow a respect to the rotational movement of the actuating part form-fitting support of the pressure plate on the sensor housing.
  • the frictional torque occurring between the actuating part and pressure plate during the clamping operation of the clamping device can be supported by pressure forces between the flat end face portions and the corresponding, oppositely disposed side surfaces of the sensor housing.
  • the arcuate side surface portions ensure the largest possible contact surface of the pressure plate relative to the sensor housing in the direction of the force exerted by the actuating part pressing force.
  • the arcuate end face sections are formed as circular arc sections point-symmetrical, in particular concentric, to a vertical axis of the clamping unit.
  • the pressure plate is inserted before the assembly of the actuating part and the clamping part through the window-like opening in the recess in the sensor housing and positioned by rotation about the vertical axis in the sensor housing.
  • the circular arc-shaped end face sections slide along the respectively opposite housing-fixed stop sections for the clamping part, until the desired target position for the pressure plate is reached.
  • This assembly process is favored in a special way, when the two circular arc-shaped end surface sections are formed point-symmetrical and concentric to the vertical axis of the clamping unit.
  • the total designated by reference numeral 1 working device includes a populated with at least one sensor 2 working device 3.
  • the implement 3 includes two relatively movable device components 4, 5, to one (4) of the sensor 2 is attached.
  • an actuator 6 At the second device component 5 is an actuator 6, which is able to activate the sensor 2 without contact.
  • the relative movement that can be carried out between the two device components 4, 5 is a linear movement or a rotary movement.
  • the implement 3 is designed as a linear drive which can be actuated by fluid power.
  • the first device component 4 consists of the housing of the linear drive, the second device component 5 from the recorded in an interior 8 of the aforementioned housing 4 output unit, which contains, for example, a displaceable by fluid force output piston.
  • the working device 3 may be, for example, a pneumatically or hydraulically actuated working cylinder.
  • the actuating element 6 is designed so that it can actuate sensor means 16 of the sensor 2 without contact, if it occupies a certain relative position in this regard. Accordingly, the sensor 2 is arranged so that the sensor means 16 are placed at a small distance alongside next to the movement path 7 of the actuating element 6 indicated by a double arrow.
  • the actuating element 6 is, in particular, a permanent magnet device.
  • the sensor means 16 respond to the magnetic field of the permanent magnet and are exemplified by a Hall sensor.
  • other embodiments are also possible.
  • the in Fig. 4 to 8 Detached sensor 2 is designed to be in particular in a stepped manner undercut anchoring groove 17 of the first device component 4 to be releasably fixed by clamping.
  • the first device component 4 can have a plurality of anchoring grooves 17 for equipping each with at least one sensor 2.
  • the anchoring groove 17 is embedded in an outer surface 18 of the first device component 4.
  • the insertion and removal of the sensor 2 is possible in the embodiment through the slot-like slot opening 22 and thus can also take place when the anchoring groove 17 is closed at the front.
  • anchoring groove 17 in the embodiment is a direct component of the first device component 4, it may deviate from this also be formed on a separate holder that can be attached to the first device component 4.
  • the slot opening 22 defines a groove neck, to which a wider anchoring section 25 adjoins via two undercut steps 24 lying transversely opposite one another.
  • a stepped in the depth direction of the anchoring groove 17 results in the course of the two longitudinal groove flanks, wherein the undercut stages 24 each extend over the entire groove length.
  • the anchoring groove 17 is, for example, a so-called round groove with a concavely curved groove base 27.
  • the boundary surface of the anchoring portion 25 is concavely curved next to the two undercut stages 24 to the boundary.
  • the vertex 26 of the groove bottom 27 marks the lowest point of the anchoring groove 17 and lies in the middle of the width of the anchoring groove 17th
  • the sensor 2 includes a sensor housing 36 having an elongate shape. From this, an electrical cable 28 for connection to an external electronic control device (not shown) can emerge. Electrical conductors 32 of the cable 28 are within the sensor housing 36 with the sensor means 16 in electrical connection. The latter is done by means of electrical conductor tracks 33, for example, conductor tracks, which are arranged on a arranged in the interior of the sensor housing 36 and the sensor means 16 supporting board 34.
  • the assembly comprise the circuit board 34, the sensor means 16 and the conductor tracks 36 will be referred to collectively as the sensor device 35 below. It sits in a space bounded by the wall of the sensor housing 36 receiving space 23rd
  • the sensor housing 36 For stationary, frictional fixation within the anchoring groove 17, the sensor housing 36 carries a clamping unit 37. With the aid of the clamping unit 37, the sensor 2 can be releasably clamped to the wall of the anchoring groove 17.
  • the sensor housing 36 contains a preferably substantially hood-shaped housing main part 12.
  • the longitudinal-side opening 45 of the housing main part 12 faces the groove bottom 27.
  • the lateral boundary take over two side walls 13, 14 which are opposite to the longitudinal opening 45 connected by a top wall 15 of the housing main body 12 together.
  • a recess 44 is formed in the housing main body 12, which is the Clamping unit 37 and the pressure plate 90 receives.
  • the recess 44 is still open to the two outer side surfaces of the sensor housing 36, via one of two in the transverse direction of the sensor housing 36 opposite lateral, window-like openings 47, each one of the side walls 13, 14th push through.
  • the sensor housing 36 has a longitudinal axis 51 and a vertical axis 52 coinciding in the installed state with the groove depth direction.
  • the vertical axis 52 passes through the ceiling wall 15.
  • the transverse axis 53 of the sensor housing 36 perpendicular to the longitudinal axis 51 and the vertical axis 52 passes through the two side walls 13, 14.
  • the clamping unit 37 includes a arranged in the recess 44 at the level of the side openings 47, preferably substantially plate-shaped clamping member 56. In addition, it contains a standing with the clamping member 56 in threaded engagement operating part 57. Due to the threaded engagement clamping member 56 and actuator 57 to one with the vertical axis 52 coincident axis of rotation 58 relative to each other rotatable. Apart from that, both parts 56, 57 are also rotatable relative to the sensor housing 36 about the axis of rotation 58.
  • the clamping member 56 is penetrated by a threaded hole 42 into which the actuating member 57 is screwed with an externally threaded threaded shaft 43. While the actuating member 57 is supported with the downwardly facing end face of the threaded shaft 43 at the bottom 63 of the recess 44, projects a circular cylindrical contoured guide portion 62 of the actuating member 47 into the preferably complementary circular cylindrical contoured upper opening 46 of the housing main body 12 and is laterally supported there. An end portion formed on the guide portion 62 operating portion 64 allows from above the attachment of a screwing tool to rotate the actuating member 57 about the longitudinal axis 58.
  • the clamping member 56 has two diametrically opposite, radially opposite sides projecting clamping wings 65.
  • the clamping member 56 can be positioned in a retracted position oriented substantially in the longitudinal direction of the sensor housing 36 in which the clamping wings 65 not or only slightly over the side surfaces the side walls 13, 14 project outwardly that they can be passed through the Nuthals 22.
  • the clamping member 56 can be rotated by about 90 ° until it rests against housing-fixed stop portions 66, so that it out of Fig. 2 and 3 apparent extended position occupies, in which the clamping wings 65 protrude so far through the side openings 47 through from the side walls 13, 14 that they can reach under the undercut stages 24.
  • the pressure plate 90 arranged between the actuating part 57 and the bottom 63 of the recess 44 distributes the pressure forces exerted by the essentially circular end face 91 of the actuating part 57 in the direction of the bottom 63 to a surface which is larger than the cross section of the end face 90 or the projection surface of the threaded shaft 43 on the Pressure plate 90.
  • the surface pressure on the example, made of plastic, sensor housing 36 is significantly reduced, so that an unwanted decrease in the clamping process introduced into the clamping unit 37 clamping force due to material relaxation at least largely, preferably completely, can be avoided.
  • the pressure plate 90 has, according to the illustration of Figures 2 and 2a two mutually opposite, planar and parallel to each other aligned end face portions 92 which are formed for planar and force-transmitting contact with also flat and mutually parallel surfaces 95 of the sensor housing 36. Adjacent to the end face portions 92, the pressure plate 90 further end face portions 93, which are formed as an arc of an example. Preferably, these circular arc-shaped end face portions 93 are aligned concentrically to a circular arc center 94, which in turn is aligned after assembly of the pressure plate 90 in the sensor housing 36 concentric with the vertical axis 52 of the actuating member 57.
  • the regional limitation of the pressure plate 90 by the circular arc-shaped end face portions 93 facilitates the mounting of the pressure plate 90 through the lateral, window-like openings 47 formed in the sensor housing 36th
  • the pressure plate 90 is inserted prior to assembly of the clamping unit 37 in the recess 44 of the sensor housing 36 and by a rotation about the vertical axis 52 in the functional position according to the FIG. 2 pivoted.
  • the end face 91 of the actuating part 57 is partially flat on the opposite surface of the pressure plate 90.
  • frictional torque is supported by pressure forces that are transmitted in particular from the end face portions 92 on the surfaces 92 of the sensor housing 36, so that an undesirable rotational movement of the pressure plate 90 is avoided.
  • the clamping part 56 In order to install the sensor 2, it is inserted into the anchoring groove 17 when the clamping part 56 is in the retracted position. In this case, the clamping part 56 assumes a position within the anchoring portion 25. Subsequently, the actuating member 57 is rotated by acting on the actuating portion 64, which has due to the threaded friction an initial rotational drive of the clamping member 56 to rest against the abutment portions 66 result. Now the clamping member 56 is in the extended with the clamping wings 65, the undercut stages 24 under extended position.
  • the rotatably supported clamping member 56 screws in the recess 44 upwards and is biased with its clamping wings 65 from below against the undercut stages 24.
  • the actuating member 57 is supported with its lower end face 91 via the pressure plate 90 at the bottom 63 of the recess 44 and pushes the housing main part 12 downwards in the direction of the groove bottom 27. The latter causes the sensor housing 36 with a in the axial direction of the vertical axis 52nd immediately below the recess 44 lying support surface 67 is clamped to the groove bottom 27.
  • the support surface 67 is of a relative to the housing main part 12 separately formed Abstützsteg 58 formed, which is attached below the recess 44 to the two groove bottom 27 facing edge surfaces 72 of the two side walls 13, 14 and thereby bridges the transverse distance between these two side walls 13, 14. It spans the gap between the two side walls 13, 14 at a height distance below the bottom wall 63 of the recess 44 defining bottom wall 63 a, which also extends between the two side walls 13, 14, so that in the axial direction of the longitudinal axis 51 extending tunnel 73 results, which connects as an intermediate portion of the receiving space 23 whose axially front and rear of the recess 54 lying front and rear receiving space portions 23 a, 23 b together.
  • the measured in the axial direction of the longitudinal axis 51 length of the Abstützsteges 68 is less than that of the associated longitudinal opening 45, so that the latter is covered only to a part of its length.
  • the longitudinal opening 45 remains uncovered axially on both sides of the support web 68 by the support web 68.
  • the receiving space 23 is thus covered only locally limited, namely in the recess 44 opposite area.
  • the support web 68 is slightly longer than the recess 44, so that it projects beyond this piece axially in both directions.
  • the effect achieved by the supporting web 68 is that the loading forces introduced by the actuating part 57 into the bottom wall 63a and split from there into the two side walls 13, 14 are introduced via the supporting web 68 into the groove base 27.
  • the side walls 13, 14 are thereby not burdened with transverse forces, so that they undergo no transverse deformation and the tunnel 73 in total of enclosed in a rigid structure. There is thus no risk that the side walls 13, 14 break off due to excessive bending stress, nor are components arranged in the tunnel 73 squeezed together and possibly damaged.
  • the latter is important in that components of the sensor device 35 are also arranged in the tunnel 73. Specifically, extends through the tunnel 73 through a circuit board 33 occupied platinum web section 74 of the board 34, which is also filled by a filled into the receiving space 23 potting compound 75 as the front and rear receiving space sections 23a, 23b to the local components of the sensor device 35th around.
  • the potting compound 75 envelops the sensor device 35 and at the same time fixes it relative to the sensor housing 36. It completely fills the receiving space 23, including the unlocked longitudinal sections of the longitudinal opening 45 axially following the support web 68.
  • Fig. 5 it can be seen how the potting compound received in the longitudinal opening 45 connects substantially seamlessly to the support surface 67 and to the uncovered edge surfaces 72 of the side walls 13, 14.
  • the underside is designed by appropriate shaping of said edge surfaces 72 and also the outer surface of the potting compound 75 so that over the entire length of the same outer contour is present as defined by the support surface 67.
  • the board 34 is expediently arranged edgewise in the receiving space 23. It has two axially on both sides of the sinker section 74 subsequent board end portions 76, which in the direction of the vertical axis 72nd wider than the board web portion 74, so that the board 34 is designed a total of about U-like.
  • the assembly of the sensor device 35 is independent of that of the clamping unit 37.
  • a preferred assembly process results from Fig. 6 to 8 ,
  • the fully loaded with the electronic components of the sensor device 35 board 34 is inserted with its U-opening ahead of the longitudinal opening 45 away in the receiving space 23 of the housing main body 12 according to arrow 77.
  • the sinker web section 74 comes to rest at a distance from the bottom wall 63a.
  • 36 suitable centering means are provided in the interior of the sensor housing, which ensure that the inserted board 34 assumes a predetermined relative position even without potting compound, as in Fig. 7 is expressed.
  • Suitable centering means 79 on the support web 68 can dive into the opposite side walls 13, 14 during attachment and thereby define the transverse position of the support web 68 relative to the housing main part 12.
  • additional locking means 83 may be present, which act between the support web 68 and the housing main body 12 to hold the attached Abstützsteg 68 without potting compound 75 until the assembly process is completed.
  • the support bar 68 is at least substantially held in place only by the potting compound 75, which acts as a physical adhesive. Additional protrusions and / or depressions on the inner surface of the support web 68 can improve the adhesive adhesion if necessary.
  • edge surfaces 72 of the two side walls 13, 14 each have a recess 85 at the mounting location of the support web 68 into which the support web 68 can dip a piece.
  • the support web 68 is seen in cross-section preferably designed arcuate. It may have the form of a shell body. Its outer surface defining the supporting surface 67 is preferably convexly curved, in particular with the same radius of curvature as the concave groove base 27. In this way, the supporting web 68 can be supported over a large area on the groove base 27, so that the supporting forces occurring spread over a large area and the specific stress is relatively low.
  • the measured in the axial direction of the transverse axis 53 width of the Abstützsteges 68 is greater than the distance between the facing inner surfaces of the two side walls 13, 14. Preferably, it corresponds to the distance between the two outer side surfaces of the side walls 13, 14th
  • the contact surfaces 86 extend between the side walls 13, 14 and the support web 68 in a plane perpendicular to the vertical axis 52. This ensures that the side walls 13, 14 are stressed by the reaction forces exerted by the support web 68 only to pressure and not to bending.
  • the contact surfaces 86 may also be stepped.
  • the same material is recommended, which is also used for the design of the housing main part 12.
  • a plastic material is used, preferably a fiber-reinforced plastic material. In any case, it should be a relatively hard, compared to the cured potting compound 75 harder material.
  • the support web 68 preferably has the shape of a curved at least on its outer surface platelet.
  • a single support web 68 is used. In principle, however, several such Abstützstege 68 in the direction of the longitudinal axis 51 with more or less be strung together a large distance to accomplish the support.
  • the support web 68 and the housing main body 12 consist of a single piece.
  • the sensor device 35 has an easily mountable shape, for example an L-shape, so that it is possible to insert it via the rear-side housing opening 84.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Measuring Fluid Pressure (AREA)
  • Force Measurement Appropriate To Specific Purposes (AREA)

Claims (9)

  1. Capteur, en particulier capteur de positionnement, comprenant un carter de capteur (36) oblong renfermant un dispositif à capteur (35), lequel carter de capteur présente un évidement (44) ouvert en direction du côté supérieur et des deux surfaces latérales, une unité de serrage (37), laquelle sert à coincer le capteur (2) dans une rainure d'ancrage (17) et qui s'appuie au niveau du fond (63) de l'évidement (44), étant disposée dans ledit évidement, et au niveau du côté inférieur duquel carter de capteur se trouve une surface d'appui (67) destinée à s'appuyer contre la base de rainure (27) de la rainure d'ancrage (17), sachant que le carter de capteur (36) comporte une partie principale de carter (12) définissant l'évidement (44), ouverte en direction du bas, présentant deux parois latérales (13, 14) définissant les surfaces latérales, lesquelles parois latérales délimitent un espace de réception (23) équipé du dispositif à capteur (35) et rempli d'une masse de scellement (75) disposant de propriétés d'adhérence, sachant que la surface d'appui (67) située directement sous l'évidement (44) est formée par au moins une entretoise d'appui (68) surmontant la distance entre les deux parois latérales (13, 14) et recouvrant ce faisant, en bas, de manière limitée localement, l'espace de réception (23) et que l'unité de serrage (37) présente une partie de serrage (56) et une partie d'actionnement (57) se trouvant en prise par vissage avec la partie de serrage (56), sachant que la partie de serrage (56) et la partie d'actionnement (57) pouvant être tournées, par rapport au carter de capteur (36) et l'une par rapport à l'autre, autour d'un axe de rotation (58) orientée dans le même sens que l'axe supérieur (52) du carter de capteur (36), sachant que la partie d'actionnement (57) s'appuie vers le bas, sans prise par filetage, au niveau du fond de l'évidement (44) et sachant que la partie de serrage (56) peut être déplacée par un actionnement en rotation de la partie d'actionnement (57), dans une position de serrage dépassant, par l'extérieur, les surfaces latérales du carter de capteur (36) et sollicitant ce faisant dans le même temps les flancs de rainures d'une rainure d'ancrage (17) recevant le capteur (5), caractérisé en ce qu'une plaque de pression (90) est disposée entre l'unité de serrage (37) et le carter de capteur (36).
  2. Capteur selon la revendication 1, caractérisé en ce que la plaque de pression (90) présente, dans un plan de coupe transversale orienté de manière perpendiculaire par rapport à l'axe vertical (52) du carter de capteur (36), une extension, qui est plus importante qu'une extension de la section transversale dans le plan de coupe transversale ou qu'une projection de la partie d'actionnement (57) dans le plan de coupe transversale.
  3. Capteur selon la revendication 1 ou 2, caractérisé en ce que la plaque de pression (90) est réalisée sous la forme d'une plaque plane parallèle, de préférence à partir d'un matériau présentant une résistance plus élevée à la pression que le matériau du carter de capteur (36), en particulier à partir d'un matériau métallique ou d'un matériau en céramique.
  4. Capteur selon la revendication 1, 2 ou 3, caractérisé en ce que la plaque de pression (90) et le carter de capteur (36) sont reliés l'un à l'autre par liaison de matière et/ou par complémentarité de forme.
  5. Capteur selon l'une quelconque des revendications précédentes, caractérisé en ce que la plaque de pression (90) présente deux sections de surface frontale (92) planes, parallèles, opposées l'une à l'autre et des sections de surface frontale (93) adjacentes à ces dernières, présentant au moins par endroits une forme d'arc de cercle.
  6. Capteur selon la revendication 5, caractérisé en ce que les sections de surface frontale (93) présentant une forme d'arc de cercle sont réalisées sous la forme de sections d'arc de cercle, de manière symétrique ponctuelle, en particulier de manière concentrique, par rapport à un axe vertical (52) de l'unité de serrage (37).
  7. Dispositif de travail comprenant un appareil de travail (3), qui présente deux composants d'appareil (4, 5) pouvant être déplacés l'un par rapport à l'autre, l'un des deux composants d'appareil (4) présentant au moins une rainure d'ancrage (17) contre-dépouillée, dans laquelle est fixé de manière amovible au moins un capteur (2), tandis que l'autre composant d'appareil (5) supporte au moins un élément d'actionnement (6) approprié pour l'actionnement sans contact du capteur (2), caractérisé en ce que le capteur (2) est réalisé selon l'une quelconque des revendications 1 à 6.
  8. Dispositif de travail selon la revendication 7, caractérisé en ce que la rainure d'ancrage (17) est contre-dépouillée de manière à présenter une forme de palier et présente par exemple une base de rainure (27) à contour concave vu dans la section transversale.
  9. Dispositif de travail selon la revendication 7 ou 8, caractérisé en ce que l'appareil de travail (3) est un système d'entraînement à actionnement fluidique.
EP20110007425 2010-09-17 2011-09-13 Capteur et appareil équipé d'un tel capteur Active EP2431615B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE201010045667 DE102010045667A1 (de) 2010-09-17 2010-09-17 Sensor und damit ausgestattetes Arbeitsgerät

Publications (3)

Publication Number Publication Date
EP2431615A2 EP2431615A2 (fr) 2012-03-21
EP2431615A3 EP2431615A3 (fr) 2012-12-12
EP2431615B1 true EP2431615B1 (fr) 2014-09-10

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DE (1) DE102010045667A1 (fr)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012224075A1 (de) 2012-12-20 2014-06-26 Continental Teves Ag & Co. Ohg Sensor zum Erfassen einer Position eines Geberelements
DE102017114908B3 (de) * 2017-07-04 2018-04-05 Sick Ag Sensorgehäuse
DE102018208384A1 (de) * 2018-05-28 2019-11-28 Zf Friedrichshafen Ag Stator einer elektrischen Maschine mit einem Temperatursensor und elektrische Maschine mit einem solchen Stator
DE102021205377B3 (de) 2021-05-27 2022-06-23 Festo Se & Co. Kg Sensor und damit ausgestattete Arbeitsvorrichtung

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DE19825426B4 (de) * 1997-07-10 2006-03-16 Werner Turck Gmbh & Co. Kg In eine T-Nut einsetzbarer Näherungsschalter bzw. Befestigungselement dafür
DE29811811U1 (de) * 1998-07-02 1998-10-15 Festo Ag & Co Vorrichtung zur lösbaren Verankerung eines Sensors
DE10227333B4 (de) * 2002-06-19 2007-02-15 Bosch Rexroth Aktiengesellschaft Vorrichtung zur Befestigung eines Sensors in einer Nut
DE102008015447B4 (de) * 2008-03-22 2009-12-10 Festo Ag & Co. Kg Sensor und damit ausgestattetes Arbeitsgerät

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