EP0654608A1 - Procédé pour commander le mouvement d'un vérin à fluide et vérin à fluide - Google Patents

Procédé pour commander le mouvement d'un vérin à fluide et vérin à fluide Download PDF

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Publication number
EP0654608A1
EP0654608A1 EP94117703A EP94117703A EP0654608A1 EP 0654608 A1 EP0654608 A1 EP 0654608A1 EP 94117703 A EP94117703 A EP 94117703A EP 94117703 A EP94117703 A EP 94117703A EP 0654608 A1 EP0654608 A1 EP 0654608A1
Authority
EP
European Patent Office
Prior art keywords
piston
pressure medium
interior
ventilation
movement
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
EP94117703A
Other languages
German (de)
English (en)
Other versions
EP0654608B1 (fr
Inventor
Volker Drittel
Hanserdmann V. Biedersee
Peter Rohatschek
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.)
Hygrama AG
Original Assignee
Hygrama AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hygrama AG filed Critical Hygrama AG
Publication of EP0654608A1 publication Critical patent/EP0654608A1/fr
Application granted granted Critical
Publication of EP0654608B1 publication Critical patent/EP0654608B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
    • F15B11/02—Systems essentially incorporating special features for controlling the speed or actuating force of an output member
    • F15B11/04—Systems essentially incorporating special features for controlling the speed or actuating force of an output member for controlling the speed
    • F15B11/046—Systems essentially incorporating special features for controlling the speed or actuating force of an output member for controlling the speed depending on the position of the working member
    • F15B11/048—Systems essentially incorporating special features for controlling the speed or actuating force of an output member for controlling the speed depending on the position of the working member with deceleration control
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
    • F15B15/08—Characterised by the construction of the motor unit
    • F15B15/082—Characterised by the construction of the motor unit the motor being of the slotted cylinder type
    • 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/30—Directional control
    • F15B2211/305—Directional control characterised by the type of valves
    • F15B2211/3056—Assemblies of multiple valves
    • F15B2211/30565—Assemblies of multiple valves having multiple valves for a single output member, e.g. for creating higher valve function by use of multiple valves like two 2/2-valves replacing a 5/3-valve
    • F15B2211/3057—Assemblies of multiple valves having multiple valves for a single output member, e.g. for creating higher valve function by use of multiple valves like two 2/2-valves replacing a 5/3-valve having two valves, one for each port of a double-acting output member
    • 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/30—Directional control
    • F15B2211/32—Directional control characterised by the type of actuation
    • F15B2211/327—Directional control characterised by the type of actuation electrically or electronically
    • 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/60—Circuit components or control therefor
    • F15B2211/63—Electronic controllers
    • F15B2211/6303—Electronic controllers using input signals
    • F15B2211/6336—Electronic controllers using input signals representing a state of the output member, e.g. position, speed or acceleration
    • 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/60—Circuit components or control therefor
    • F15B2211/665—Methods of control using electronic components
    • 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/70—Output members, e.g. hydraulic motors or cylinders or control therefor
    • F15B2211/705—Output members, e.g. hydraulic motors or cylinders or control therefor characterised by the type of output members or actuators
    • F15B2211/7051—Linear output members
    • F15B2211/7053—Double-acting output members
    • 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/70—Output members, e.g. hydraulic motors or cylinders or control therefor
    • F15B2211/755—Control of acceleration or deceleration of the output member

Definitions

  • the invention is based on a rodless pressure medium cylinder.
  • pressure medium cylinders of this type the movement of the piston takes place due to a pressure difference between its two end faces.
  • the movement of the piston is absorbed by a lateral extension which projects outwards through a longitudinal slot in the housing.
  • the longitudinal slot is sealed at least on the inside by a sealing tape which is lifted from the longitudinal slot within the piston.
  • the movement takes place in that compressed air is let into one partial interior, while a pressure medium passage is opened in the area of the other end.
  • the piston is thereby displaced and the air on the other side of the piston is conveyed outside through the pressure medium outlet.
  • the resistance that the drive must overcome is also determined, among other things, by the flow resistance of the pressure medium outlet.
  • Braking takes place that the pressure on the drive side of the piston is reduced to atmospheric pressure.
  • the piston is then braked to a standstill, the braking force being determined by the flow resistance when the air flows out.
  • the flow resistance is chosen to be relatively large, ie the opening cross sections are chosen to be small. However, these small opening cross-sections act during the entire movement of the piston, so that the speed that can be achieved with such a pressure medium cylinder is limited.
  • the invention proposes a method with the features of claim 1 and a pressure medium cylinder with the features of claim 9. Further developments of the invention are the subject of the respective subclaims.
  • both interiors of the cylinder are vented at a standstill, d. H. that the pressure in both interiors is reduced. It can be provided that the pressure which moves the piston forward is reduced before it comes to a standstill, possibly simultaneously with the ventilation of the other interior.
  • the position of the piston is measured and then its speed is also determined if necessary. In this way, the speed or position of the piston can also be taken into account when the counter-ventilation is triggered.
  • a shock absorber can be arranged at the end of the housing, which can absorb the remaining kinetic energy of the piston when it hits the housing end.
  • This can be a conventional hydraulic or other shock absorber. In this way it becomes possible to make better use of the overall length, since the braking can even be controlled so that the piston can still reach the end of the housing at a speed other than zero.
  • the rodless pressure medium cylinder proposed by the invention has a control device which can control the valves and is designed such that it can carry out the above-mentioned processes.
  • control device can have a timer which is started at the start of the movement and, after a set time has elapsed, triggers the counter-ventilation and / or the opening of the valve on the drive side.
  • the pressure medium cylinder can have a measuring device for measuring the position and / or the speed of the piston.
  • the control device can then take these variables into account when controlling the valves.
  • control device is designed in such a way that it can actuate the valves cyclically.
  • the pressure medium cylinder can have a shock absorber for braking the piston at the end of the housing.
  • Each of the terminating heads 4 contains a pressure medium passage 7, which is connected to a valve 9 outside the pressure medium cylinder via a pressure medium line 8.
  • the pressure medium passages 7 act once as an inlet and once as an outlet.
  • the valves 9 are designed such that they can either connect the associated pressure medium line 8 to the atmosphere, which is referred to in this description as an opening. On the other hand, they can also connect the pressure medium line 8 to a pressure medium source, not shown, for example a compressed air source.
  • the valves 9 are controlled electrically. They are both open when de-energized so that no damage occurs if the power supply fails.
  • the valves 9 are controlled via the electrical control lines 10 by a controller 11.
  • the controller 11 contains a control device 12 which supplies the signals required for actuating the valves 9.
  • the controller also contains a programming unit 13 in which various parameters of the controller can be entered.
  • the operation of the control 11 of the pressure medium cylinder proposed by the invention is as follows: If the piston 5 is to be moved from its one end position, for example to the left in the figure, to the right, the valve 9 on the right side is opened, ie the pressure medium passage 7 is placed in the atmosphere. At the same time, to trigger the movement, the left valve 9 is switched so that the pressure medium passage 7 there is connected to a pressure medium source. A greater pressure prevails in the left subspace 2a than in the right subspace 2b, so that the piston 5 starts to move.
  • the control device 12 can query whether the piston 5 has reached the end position after a certain time after triggering the counter ventilation. This time can be set on device 13. Such a situation can occur if, for example, the object which is to be moved by the piston 5 is prevented or inhibited by external circumstances. If the control unit 12 determines that the end position has not been reached, it can move the piston even further by venting the subspace 2b again and venting the subspace 2a. If the left subspace 2a is still under pressure at this point, one is of course sufficient brief venting of sub-room 2b. This temporary venting can be achieved by cyclically actuating valve 9.
  • a second way of ensuring the safe reaching of the end position can be that the speed is determined during braking and then, if this speed falls below a normal speed, braking is interrupted so that the piston 5 does not come to a standstill allow.
  • An example of an application for a pressure medium cylinder of this type is the cutting off of film webs that are continuously produced and rolled up. As soon as a roll is full, the film web must be separated by a knife moved transversely to the longitudinal direction of the film. The movement of the film itself cannot be stopped.
  • the cutting knife is mounted directly on the piston attachment of the high-speed cylinder and is guided with the piston over the entire stroke length. The higher the speed of the piston, the more perpendicular the knife can cut the film. This significantly increases the productivity of such a system.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Actuator (AREA)
EP94117703A 1993-11-19 1994-11-10 Procédé pour commander le mouvement d'un vérin à fluide et vérin à fluide Expired - Lifetime EP0654608B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4339444A DE4339444A1 (de) 1993-11-19 1993-11-19 Verfahren zum Steuern der Bewegung eines Druckmittelzylinders und Druckmittelzylinder
DE4339444 1993-11-19

Publications (2)

Publication Number Publication Date
EP0654608A1 true EP0654608A1 (fr) 1995-05-24
EP0654608B1 EP0654608B1 (fr) 1997-07-16

Family

ID=6502935

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94117703A Expired - Lifetime EP0654608B1 (fr) 1993-11-19 1994-11-10 Procédé pour commander le mouvement d'un vérin à fluide et vérin à fluide

Country Status (3)

Country Link
EP (1) EP0654608B1 (fr)
DE (2) DE4339444A1 (fr)
HK (1) HK1001006A1 (fr)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0800004A1 (fr) * 1996-04-02 1997-10-08 Chiron-Werke GmbH & Co. KG Machine-outil ainsi que son procédé de commande
WO1997037139A1 (fr) * 1996-04-01 1997-10-09 Safe Net I Harads Ab Appareil de fermeture et de deverrouillage pneumatique
EP0803454A1 (fr) * 1996-04-24 1997-10-29 Rolpex Limited Dispositif de transfert
GB2348464A (en) * 1999-04-03 2000-10-04 Bosch Gmbh Robert Linear drive
US6385831B1 (en) 1996-04-02 2002-05-14 Chiron Werke Gmbh Worktable for a machine tool
US6561221B1 (en) 1999-03-18 2003-05-13 Hoerbiger Hydraulik Gmbh Control arrangement for a working cylinder
EP1396642A1 (fr) * 2002-09-06 2004-03-10 KUHNKE GmbH Procédé de côntrole d'un actionneur pneumatique ou hydraulique
WO2007068416A1 (fr) * 2005-12-17 2007-06-21 Zf Friedrichshafen Ag Ventilation d'un element de commutation
CN102720718A (zh) * 2012-07-04 2012-10-10 湖南大学 一种无杆内藏集成式宽带动态缸
WO2019020617A1 (fr) * 2017-07-27 2019-01-31 Schunk Gmbh & Co. Kg Spann- Und Greiftechnik Unité de pivotement
CN111805223A (zh) * 2019-08-01 2020-10-23 阿特拉斯柯普科工业技术(德国)有限公司 用于控制机械接合或成形加工过程的方法

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10122297C1 (de) * 2001-05-08 2002-06-27 Festo Ag & Co Vorrichtung zur gedämpften Positionierung eines in einem Zylinder verschiebbaren Kolbens in einer Anschlagposition
DE20218487U1 (de) 2002-11-28 2003-03-13 Rexroth Mecman GmbH, 30453 Hannover Pneumatisch endlagengedämpfte Antriebsordnung, insbesondere für einen Türantrieb
DE102008024338B4 (de) * 2008-05-20 2010-04-15 Festo Ag & Co. Kg Elektro-pneumatisches Antriebssystem sowie Verfahren zu seinem Betreiben
CN102721428B (zh) * 2012-07-04 2015-06-10 湖南众航科技有限公司 一种速度-位移传感器

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0040075A1 (fr) * 1980-05-12 1981-11-18 Ford Motor Company Limited Dispositif de commande hydraulique
DE3435027A1 (de) * 1984-08-13 1986-04-03 Herion-Werke Kg, 7012 Fellbach Kolbenstangenloser zylinder
EP0479399A2 (fr) * 1990-10-01 1992-04-08 MANNESMANN Aktiengesellschaft Vérin rotatif pneumatique pour le positionnement précis d'un organe de sortie de puissance

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0040075A1 (fr) * 1980-05-12 1981-11-18 Ford Motor Company Limited Dispositif de commande hydraulique
DE3435027A1 (de) * 1984-08-13 1986-04-03 Herion-Werke Kg, 7012 Fellbach Kolbenstangenloser zylinder
EP0479399A2 (fr) * 1990-10-01 1992-04-08 MANNESMANN Aktiengesellschaft Vérin rotatif pneumatique pour le positionnement précis d'un organe de sortie de puissance

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997037139A1 (fr) * 1996-04-01 1997-10-09 Safe Net I Harads Ab Appareil de fermeture et de deverrouillage pneumatique
AU717520B2 (en) * 1996-04-01 2000-03-30 Safe Net I Harads Ab Pneumatic unlocking and closing apparatus
US6279315B1 (en) 1996-04-01 2001-08-28 Safe Net I Harads Ab Pneumatic unlocking and closing apparatus
EP0800004A1 (fr) * 1996-04-02 1997-10-08 Chiron-Werke GmbH & Co. KG Machine-outil ainsi que son procédé de commande
WO1997037138A1 (fr) * 1996-04-02 1997-10-09 Chiron-Werke Gmbh & Co. Kg Procede permettant de faire fonctionner une machine-outil
US6385831B1 (en) 1996-04-02 2002-05-14 Chiron Werke Gmbh Worktable for a machine tool
EP0803454A1 (fr) * 1996-04-24 1997-10-29 Rolpex Limited Dispositif de transfert
US6561221B1 (en) 1999-03-18 2003-05-13 Hoerbiger Hydraulik Gmbh Control arrangement for a working cylinder
GB2348464A (en) * 1999-04-03 2000-10-04 Bosch Gmbh Robert Linear drive
GB2348464B (en) * 1999-04-03 2001-11-28 Bosch Gmbh Robert Linear drive
EP1396642A1 (fr) * 2002-09-06 2004-03-10 KUHNKE GmbH Procédé de côntrole d'un actionneur pneumatique ou hydraulique
WO2007068416A1 (fr) * 2005-12-17 2007-06-21 Zf Friedrichshafen Ag Ventilation d'un element de commutation
CN102720718A (zh) * 2012-07-04 2012-10-10 湖南大学 一种无杆内藏集成式宽带动态缸
CN102720718B (zh) * 2012-07-04 2015-02-18 湖南大学 一种无杆内藏集成式宽带动态缸
WO2019020617A1 (fr) * 2017-07-27 2019-01-31 Schunk Gmbh & Co. Kg Spann- Und Greiftechnik Unité de pivotement
CN111805223A (zh) * 2019-08-01 2020-10-23 阿特拉斯柯普科工业技术(德国)有限公司 用于控制机械接合或成形加工过程的方法
JP2021024078A (ja) * 2019-08-01 2021-02-22 アトラス・コプコ・イーアーエス・ゲー・エム・ベー・ハーＡｔｌａｓ Ｃｏｐｃｏ Ｉａｓ Ｇｍｂｈ 機械的な接合プロセスまたは成形プロセスを制御する方法
EP3771505A3 (fr) * 2019-08-01 2021-03-03 Atlas Copco IAS GmbH Procédé de commande d'un processus mécanique d'assemblage ou de formage
JP7110282B2 (ja) 2019-08-01 2022-08-01 アトラス・コプコ・イーアーエス・ゲー・エム・ベー・ハー 機械的な接合プロセスまたは成形プロセスを制御する方法
US11772218B2 (en) 2019-08-01 2023-10-03 Atlas Copco Ias Gmbh Method for controlling a mechanical joining or forming process

Also Published As

Publication number Publication date
DE59403382D1 (de) 1997-08-21
HK1001006A1 (en) 1998-05-15
DE4339444A1 (de) 1995-05-24
EP0654608B1 (fr) 1997-07-16

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