EP2025949A2 - Module de robinet - Google Patents

Module de robinet Download PDF

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Publication number
EP2025949A2
EP2025949A2 EP08012568A EP08012568A EP2025949A2 EP 2025949 A2 EP2025949 A2 EP 2025949A2 EP 08012568 A EP08012568 A EP 08012568A EP 08012568 A EP08012568 A EP 08012568A EP 2025949 A2 EP2025949 A2 EP 2025949A2
Authority
EP
European Patent Office
Prior art keywords
valve
valve module
switching
module according
control
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP08012568A
Other languages
German (de)
English (en)
Other versions
EP2025949B1 (fr
EP2025949A3 (fr
Inventor
Gerhard Nölle
Jürgen Arbter
Wolfgang Rammler
Michael Koch
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.)
Filing date
Publication date
Application filed by Festo SE and Co KG filed Critical Festo SE and Co KG
Publication of EP2025949A2 publication Critical patent/EP2025949A2/fr
Publication of EP2025949A3 publication Critical patent/EP2025949A3/fr
Application granted granted Critical
Publication of EP2025949B1 publication Critical patent/EP2025949B1/fr
Active legal-status Critical Current
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
    • F15B13/00—Details of servomotor systems ; Valves for servomotor systems
    • F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
    • F15B13/06—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with two or more servomotors
    • F15B13/08—Assemblies of units, each for the control of a single servomotor only
    • F15B13/0803—Modular units
    • F15B13/0832—Modular valves
    • F15B13/0839—Stacked plate type valves
    • 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
    • F15B13/00—Details of servomotor systems ; Valves for servomotor systems
    • F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
    • F15B13/06—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with two or more servomotors
    • F15B13/08—Assemblies of units, each for the control of a single servomotor only
    • F15B13/0803—Modular units
    • F15B13/0846—Electrical details
    • F15B13/086—Sensing means, e.g. pressure sensors

Definitions

  • the invention relates to a fluidic, in particular pneumatic, valve module with a supply connection for supplying fluid, and with at least one fluidic, in particular pneumatic, controllable via a control interface of the valve module valve for controlling a fluid power working device via working connections on the basis of the injected fluid.
  • the working device is, for example, a pneumatic cylinder which is pneumatically controlled by the valve module.
  • the valve module is, for example, a servo valve, in particular a proportional valve, which serves to control a pneumatic drive.
  • the pneumatic drive for example, a pneumatic working cylinder, which is controlled by the valve module.
  • the valve module receives control signals for switching its valve from a higher-level controller. From the EP 1 586 777 A1 For example, such a valve module is known.
  • This valve module also has sensors on board, such as pressure sensors.
  • valve module has at least one integrated in its housing switching output for outputting a switching signal for switching a switching device for influencing, in particular deactivating, the working device.
  • the valve module according to the invention can preferably drive a connected device directly, e.g. switching a switching valve between a blocking and a release position.
  • a switching signal preferably a safety switching signal
  • the valve module may also receive the switching signal at the control interface from the higher-level controller, for example.
  • the valve module otherwise receives the usual signals via the control interface, for example valve position signals for setting a position of a valve member of the valve on board the valve module.
  • the at least one switching output is e.g. a wired optical or electrical switching output.
  • the at least one switching output may also be part of a wireless interface, e.g. an optical interface or a radio interface.
  • the valve module expediently generates the switching signal itself, for example as a function of at least one sensor signal and / or a control signal generated by a control device.
  • the control device may be, for example, a local control device contained in the valve module or a superimposed external control device.
  • the sensor signal may be generated by an external sensor connected to the valve module, for example a position sensor on the implement.
  • a preferred variant of the invention provides that a sensor arrangement for generating a sensor signal is provided on board the valve module.
  • the sensor arrangement generates the sensor signal as a function of, for example, an operating state of the valve module or the connected implement.
  • the sensor arrangement may preferably comprise one or more pressure sensors for detecting a pressure applied to a working connection or to the supply connection. A flow measurement for the working connection and / or the supply connection can also be carried out by means of a suitable flow sensor.
  • the sensor arrangement may also include a position sensor for detecting a position of a valve member of the valve on board the valve module, a temperature sensor, a voltage sensor or a current sensor. It is understood that, depending on requirements, further sensor means may be present in the valve module.
  • the at least one switching output is expediently parameterizable.
  • limit values of the sensor values, switch-off times or switch-on times, braking values, tolerances, for example voltage tolerances, or the like can be set as parameters.
  • the parameterization can be carried out via the control interface or via a separate parameterization connection specially provided for the parameterization.
  • the switching device comprises, for example, a valve arrangement connected between the valve module and the working device.
  • the valve arrangement expediently forms a so-called fail-safe circuit.
  • a fluid flow from and / or to the implement can be influenced, for example, interrupted. So the implement can be turned off, for example.
  • the switching device may also be a braking and / or clamping device acting on an actuator element of the working device, which acts directly or indirectly on the actuator element. Indirectly, the switching device can interact with the actuator member, for example via a force tap connected to the actuator member.
  • the clamping device can hold in case of failure, for example, the actuator member in place.
  • a local control device for controlling the valve of the valve module is provided on board the valve module.
  • a control device which may also form part of the control device for controlling the valve is appropriate.
  • a position or force control is advantageous.
  • the input signal provided at the control interface is, for example, a valve position signal.
  • the control device can also be used to control the valve as a proportional valve, a pressure control valve, in particular a differential pressure control valve be configured.
  • the pressure control is highly dynamic.
  • the valve module receives, for example, pressure setpoints via the control interface. It is understood that the control device between the various control modes may be conveniently switchable, for example via the aforementioned parameterization interface or the control interface.
  • control device or the control device are advantageously designed to control the at least one switching output.
  • the control device can output a control signal via the switching output, which instructs the switching device to deactivate the working device.
  • the aforementioned fail-safe valve arrangement for blocking the fluid connections between the valve module and the implement can be controlled.
  • the valve on board the valve module is preferably a switching valve and / or a continuous valve and / or a control valve. Particularly preferred is on board the valve module, a 5/3-way valve.
  • a 5/3-way valve fulfills the function of otherwise required 3/3-pressure control valves.
  • the center position of the directional control valve is the closed position.
  • control interface and the at least one switching output are advantageously connected to one another, so that the switching output can be actuated directly via the control interface.
  • a higher-level control on the control interface can send a switching signal for deactivating or activating the implement to the valve module. This signal is forwarded by the control interface directly to the at least one switching output. This is simplifies the control of the working device.
  • the cabling effort is low, in particular, no separate cables must be placed between the superimposed control device and the switching device.
  • the control interface is advantageously a bus interface, for example a fieldbus interface.
  • the valve module expediently has a linking interface for linking with further valve modules or further devices, in particular connected via a bus to the valve module.
  • the control interface is looped through to the bus interface.
  • the valve module has a transmitting device for transmitting diagnostic data and / or device data of the valve module, a device connected to the valve module, for example, the implement or the switching device.
  • the transmitting device can for example report a switching state of the switching device.
  • the switching output may expediently comprise a digital and / or an analog switching output.
  • the respective switching state at the switching output can be reported on via the control interface, for example to a higher-level control.
  • the valve module according to the invention is designed not only for the output of switching signals, but also for the detection of input signals, for which purpose expediently at least one signal input integrated in the housing of the valve module is provided.
  • the message input can be designed to detect digital and / or analog data.
  • position sensors can be used via the message input or other sensors, which are arranged in particular on the working device, report reporting signals to the valve module.
  • the message input and the switching output are expediently coupled to one another, for example, directly via a line connection or indirectly, for example via the control device or regulating device of the valve module.
  • the switching output generates the switching signal as a function of at least one input signal which is present at the message input.
  • the valve module is preferably a separately operable, so to speak, stand-alone valve module.
  • the valve module is designed as a module for a valve battery, which contains a plurality of valve modules lined up, input / output modules and the like.
  • a fluid power arrangement 10a includes a pneumatic drive 11a as a fluid power tool 12a.
  • the drive 11a is a linear drive.
  • the drive 11a is acted upon by a valve module 13a with fluid, in the present case compressed air, so that an actuator element 35a arranged in the interior of the drive 11a drives a carriage 15, which is guided externally on the housing 14 of the drive 11a, back and forth between end stops 16, 17.
  • valve module 13a For a forward movement V of the carriage 15 in the direction of the end stop 17, the valve module 13a acts on the drive 11a at a device fluid port 18a with fluid, while compressed air can flow out of a discharge-side device fluid port 19a arranged at the end stop 17.
  • the valve module 13a pressurizes the device fluid connection 19a with compressed air, while compressed air can flow out of the then downstream device fluid connection 18a.
  • the device fluid ports 18a, 19a are connectable to valve module working ports 20a, 21a of the valve module 13a via fluid conduits 22a, 23a and connected to operate the assembly 10a.
  • the fluid conduits 22a, 23a are flexible hoses which can be inserted into the fluid connections 18a-21a and are then advantageously automatically locked by them.
  • the valve module 13a can be supplied with compressed air via a supply connection 24. Compressed air flowing back from the implement 12a into the valve module 13a can be conveyed via an exhaust device 25, for example, a silencer, flow out.
  • the exhaust device 25 advantageously forms part of the valve module 13 a and is arranged on the housing 26.
  • connections 27, 28 for connecting the valve module 13a to other devices, e.g. Control and sensor devices provided.
  • connection 27 is part of a control interface 36.
  • the control interface 36 contains a bus interface 37 for connecting a control device 29 controlling or regulating the valve module 13a.
  • connection 28 is part of a linking interface 41 for linking the valve module 13a to other valve modules, eg a valve module 13a '(see FIG FIG. 3 ).
  • the linking interface 41 is, for example, a bus interface, eg a fieldbus interface. Lines of the control interface 36 are looped through to the interlinking interface 41, for example.
  • connection line 30 to a position sensor device 31 for detecting a respective position of the carriage 15 may also be connected to the interlinking interface 41, if the position sensor device 31, e.g. has a bus interface.
  • Display means 32 of the valve module 13a are used to display operating conditions, such as error conditions, correct supply voltage and the like.
  • a reliable and correct tubing or fluid connection between the devices 11a, 13a can be produced by appropriate, optional measures.
  • the device fluid port 18a and the valve module working port 20a have identical release rings 33 as a first mechanical coding.
  • Soldering rings 34 of the fluid ports 19a, 21a are mechanically different from the release rings 33 and thus form a second mechanical coding.
  • the release rings 33 continue to project in front of fluid connection bodies of the fluid connections 18a, 20a than the release rings 34 in the fluid connections 19a, 21a.
  • the fluid lines 22a, 23a and expediently also the fluid connections 18a, 20a or 19a, 21a have, for example, different color codes or corrugations, so that a clear color assignment from fluid line to fluid connection is provided.
  • the valve module 13a includes a valve 38 which is controllable via the control interface 36. Via the control interface 36, the valve module 13a receives position signals for a non-illustrated valve member of the valve 38. However, these position signals are not transmitted directly from the control interface 36 to the valve 38, but to a control device 39 of the valve module 13a.
  • the control device 39 further includes a control module 40, which forms a control device 72.
  • a processor 71 executes program code of the control module 40.
  • the control module 40 controls on the basis of the control interface 36th obtained valve position signals a respective position of the valve 38.
  • the valve 38 is a 5/3-way valve.
  • the control module 40 can be switched over between a position control and a pressure control as well as a proportional control, for example via corresponding control parameters which the valve module 13a receives at the control interface 36 or a parameterization interface 42.
  • the control device 39 evaluates sensor signals 47 obtained, for example, from pressure sensors 43, 44 and 45 of a sensor arrangement 46.
  • the pressure sensors 43, 44 are associated with the working ports 20a, 21a.
  • the pressure sensor 45 detects the supply pressure at the supply connection 24.
  • the sensors 43, 44 and 45 are assigned a pressure detection device 48, which preprocesses the sensor signals 47, for example for the control device 39, for example, adjusts levels, smoothes the sensor signals 47 or the like.
  • the valve module 13a not only pneumatically actuates the implement 12a, but also switches switching means 49a for deactivating the implement 12a.
  • the switching devices 49a comprise switching valves 50 of a valve arrangement 51.
  • the switching valves 50 are connected in the fluid lines 22a, 23a and can pass or block the compressed air flow on these fluid lines.
  • the valve module 13a switches the switching valves 50 via switching outputs 52a of a switching output device 53.
  • the switching outputs 52a are integrated into the housing 26 of the valve module 13a.
  • the valve module 13a has the switching outputs 52a on board.
  • the valve module 13a sends via lines 54a or optionally also via a wireless interface 54b switching signals 54 for switching the switching valves 50 in their blocking position or passage position. For example, in an error case switches the valve module 13a, the two switching valves 50 in their locked position, so that the implement 12a is blocked.
  • the valve assembly 51 forms a fail-safe valve assembly.
  • the valve module 13a reports a respective position of the switching valves 50 via the control interface 36, which forms a transmitting device 79 for transmitting at least one switching state of the switching device 49a.
  • the valve module 13a generates the switching signal 54 in response to, for example, the pressure sensor signals 47. At an unexpected pressure drop at one of the working ports 20a, 21a, at a pressure loss at the supply port 24 or the like, the valve module 13a generates the switching signal 54 for switching the switching valves 50 in their Locked position, so that the implement 12a is turned off.
  • valve module 13a has a temperature control.
  • a temperature sensor 55 monitors the temperature of the valve module 13a, for example the valve 38 or a power supply 61 of the valve module 13a.
  • the temperature sensor 55 generates a temperature sensor signal 56, which receives the switching output device 53 at an input interface 57.
  • the switching output device 53 switches the switching valves 50 into their blocking position.
  • the position sensor 31 can also be connected to the input interface 57, which is indicated by a connection line 73 shown in dashed lines.
  • the position sensor 31 generates a position sensor signal 58.
  • the switching output device switches For example, when a limit position is exceeded, the actuator member 35a approaches too close to the end stops 16 and 17, a predetermined limit speed is exceeded, or the like, the shift output device 53 switches the shift valves 50 to their locked positions.
  • a voltage sensor 59 and a current sensor 60 monitor the power supply 61 of the valve module 13a and the switching output device 53 generates the switching signal 54 on the basis of the sensor signals 74, 75 supplied by the sensors 60, 61, for example in the case of a current or voltage drop the switching valves 50 switches in blocking position.
  • a position sensor 62 of the valve module 13a detects the respective position of a valve member of the valve 38 and generates a position sensor signal 63 dependent on its position.
  • the control module 40 controls the position of the valve member on the basis of the position sensor signal 63.
  • the position sensor 62 also transmits the position sensor signal 63 to the switching output device 53. If, for example, the valve member jams or is braked by an obstacle in its movement, this is recognizable from the position sensor signal 63.
  • the switching output device 53 evaluates the position sensor signal 63 and thus recognizes, for example, a malfunction in the valve 38. In the event of a fault, the switching output device 53 switches the switching valves 50 into the blocking position via at least one switching output 52a.
  • the switching output 52a is a digital switching output.
  • the switching valves 50 could be connected in parallel to a single switching output 52a.
  • the switching output 52a can also be controlled directly by the switching output device 53 and / or the control module 40.
  • the control module 40 may control the switching output means 53 via a line 64 to switch the switching device 49a, for example Switching the switching valves 50 in blocking position or passage position.
  • the switching output device 53 is also controlled via the control interface 36, which is preferably a bus interface.
  • a line 65 is provided.
  • the switching outputs 52a are controlled directly by the control device 39 or by the control interface 36, that is to say that no switching output device 53 must be present.
  • the switching output device 53 can also be controlled via a message input 66, for example a digital or analog message input.
  • a position sensor 70 which signals an end position of the actuator member 35a, can be connected to the message input 66. If the actuator member 35a abuts against the end stop 17, for example, the position sensor 70, for example an inductive sensor, reports this to the signaling input 66.
  • the valve module 13a for example, switches the switching valves 50 into blocking position.
  • the message input 66 which may be a digital or analog message input, is connected to the control interface 36, so that an input signal detected by the message input 66 can be detected directly via the control interface 36, for example can be reported to the higher-level control device 29.
  • a suitably digital switching output 91 can be controlled to switch a switching device, for example the switching device 49, directly via the control interface 36.
  • the superimposed control device 29 can activate the switching output 91 directly via the control interface 36, for example output a control signal for switching the switching valves 50 (not shown).
  • Display means 76 for example audible and / or visual display means, e.g. an LED array 77, indicate a respective switching position of the switching outputs 52a.
  • valve module 13a Furthermore, extensive diagnostic and parameterization options are available in the valve module 13a. For example, characteristic data of the valve 38, for example rated flow and valve type, a serial number of the valve module 13a and the like are stored in a device data memory 67. It is even possible that in the device data memory 67 characteristics of the connected implement 12a are stored, such as piston diameter and the like.
  • the valve module 13a transmits this device data via the control interface 36, which thus forms a transmission device 78 for transmitting diagnostic data and / or device data.
  • the valve module 13a transmits additional diagnostic information, for example a deadlock in the connected implement 12a and / or the valve 38, too high a temperature, too high a current and the like about the Control interface 36 or a diagnostic connection, not shown.
  • additional diagnostic information for example a deadlock in the connected implement 12a and / or the valve 38, too high a temperature, too high a current and the like about the Control interface 36 or a diagnostic connection, not shown.
  • the valve module 13a can be parameterized via the parameterization interface 42.
  • a parameterizing device 68 can be connected to the parameterizing interface 42 in order to parameterize limit values, switch-off times, blocking times and the like in the valve module 13a.
  • the valve module 13a can be linked to other modules, in particular further valve modules.
  • a fluidic device 10a 'according to FIG. 3 shows, for example, such a concatenated system.
  • Working devices 12a, 12a ' are, for example, components of a multi-axis system, which can be controlled by the control device 29 in an integrated fashion.
  • the valve module 13a is connected via a linking line 69 to a further valve module 13a ', which drives a working device 12a', for example also a fluidic linear drive.
  • the linking line 69 is inserted, for example, in the terminal 28.
  • the linking line 69 is, for example, a bus line.
  • FIG. 4 illustrated valve battery 80, a control module 81 for controlling further components, namely an input / output module 82 and valve modules 83 and a valve module according to the invention 13b '.
  • the control module 81 controls the modules 82, 83, 13a via an internal bus 84, via which the aforementioned modules communicate with each other.
  • the valve module 83 has for the bus 84, for example, a control interface, not shown.
  • the valve module 13b of the fluid power arrangement 10b controls, via its working connections 20a, 20b, an implement 12b, a pneumatic drive 11b.
  • Fluid lines 22b, 23b lead from device fluid ports 18b, 19b of the implement 12b to the valve module 13b.
  • the valve module 13b actuates an actuator member 35b, for example a piston, of the drive 11b designed as a pneumatic cylinder.
  • a piston rod 87 is arranged, which serves as a force tap and protrudes in front of a housing 14b of the drive 11b.
  • the piston rod 87 can be clamped by means of a clamping device 85, so that it remains in place. This is particularly advantageous in an error situation or when the drive 11b is to be deactivated.
  • valve module 13b it would be conceivable, for example, to control the clamping device 85 via the input / output module 82.
  • a line 86 leads to the clamping device 85, which forms a switching device 49b.
  • the valve module 13b can switch the clamping device 85 in the clamping position or in the release position in response to a command received via the internal bus 84.
  • internal sensor signals of the valve module 13b can lead to this switching operation, for example a sudden occurrence of overpressure at the supply connection (not shown) or the like.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Indication Of The Valve Opening Or Closing Status (AREA)
  • Multiple-Way Valves (AREA)
EP08012568.5A 2007-08-16 2008-07-11 Module de robinet Active EP2025949B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102007038611A DE102007038611A1 (de) 2007-08-16 2007-08-16 Ventilmodul

Publications (3)

Publication Number Publication Date
EP2025949A2 true EP2025949A2 (fr) 2009-02-18
EP2025949A3 EP2025949A3 (fr) 2012-08-08
EP2025949B1 EP2025949B1 (fr) 2013-10-02

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP08012568.5A Active EP2025949B1 (fr) 2007-08-16 2008-07-11 Module de robinet

Country Status (4)

Country Link
US (1) US8266902B2 (fr)
EP (1) EP2025949B1 (fr)
CN (1) CN101368582B (fr)
DE (1) DE102007038611A1 (fr)

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DE202014004294U1 (de) 2014-05-22 2015-08-27 J. Schmalz Gmbh Ventilinsel
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CN110622360B (zh) 2017-05-02 2023-04-25 阿斯科公司 具有堆叠互连功能部件的模块化电气现场总线系统
DE102018202416B4 (de) * 2018-02-16 2024-12-19 Festo Se & Co. Kg Verbrauchersteuervorrichtung und Steuerungsverfahren
RU2689662C1 (ru) * 2018-11-29 2019-05-28 федеральное государственное бюджетное образовательное учреждение высшего образования "Донской государственный технический университет", (ДГТУ) Позиционный пневматический привод
DE102019204484A1 (de) * 2019-03-29 2020-10-01 Festo Se & Co. Kg Trajektorien-Planungseinheit, Ventilanordnung und Verfahren
DE102020213982B3 (de) * 2020-11-06 2022-02-03 Festo Se & Co. Kg Verfahren zur Inbetriebnahme einer pneumatischen Aktorvorrichtung, Inbetriebnahmesystem und pneumatisches Steuermodul
CN115750498B (zh) * 2022-08-10 2026-03-24 太原理工大学 一种具有冗余功能的比例多路阀的控制装置和方法
DE102023107648A1 (de) * 2023-03-27 2024-10-02 Festo Se & Co. Kg Ventilanordnung und Verfahren zur Installation einer Ventilanordnung

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DE102005052692B3 (de) * 2005-10-28 2007-05-31 Voith Turbo H + L Hydraulic Gmbh & Co. Kg Elektrohydraulische Überwachungseinrichtung

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US8266902B2 (en) 2012-09-18
US20090045361A1 (en) 2009-02-19
EP2025949B1 (fr) 2013-10-02
EP2025949A3 (fr) 2012-08-08
CN101368582B (zh) 2013-06-05
CN101368582A (zh) 2009-02-18
DE102007038611A1 (de) 2009-02-19

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