EP1193345B1 - Steuervorrichtung für eine Schienenschleifmaschine - Google Patents

Steuervorrichtung für eine Schienenschleifmaschine Download PDF

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Publication number
EP1193345B1
EP1193345B1 EP01402518A EP01402518A EP1193345B1 EP 1193345 B1 EP1193345 B1 EP 1193345B1 EP 01402518 A EP01402518 A EP 01402518A EP 01402518 A EP01402518 A EP 01402518A EP 1193345 B1 EP1193345 B1 EP 1193345B1
Authority
EP
European Patent Office
Prior art keywords
grinding wheel
control device
accordance
sensor
detector
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP01402518A
Other languages
English (en)
French (fr)
Other versions
EP1193345A1 (de
Inventor
Jean-Marie Bressan
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.)
Societe des Anciens Etablissements Lucien Geismar SAS
Original Assignee
Societe des Anciens Etablissements Lucien Geismar SAS
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 Societe des Anciens Etablissements Lucien Geismar SAS filed Critical Societe des Anciens Etablissements Lucien Geismar SAS
Publication of EP1193345A1 publication Critical patent/EP1193345A1/de
Application granted granted Critical
Publication of EP1193345B1 publication Critical patent/EP1193345B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • E01B31/00—Working rails, sleepers, baseplates, or the like, in or on the line; Machines, tools, or auxiliary devices specially designed therefor
    • E01B31/02—Working rail or other metal track components on the spot
    • E01B31/12—Removing metal from rails, rail joints, or baseplates, e.g. for deburring welds, reconditioning worn rails
    • E01B31/17—Removing metal from rails, rail joints, or baseplates, e.g. for deburring welds, reconditioning worn rails by grinding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B49/00—Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation
    • B24B49/12—Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation involving optical means

Definitions

  • the invention relates to a control system of the grinding wheel of a grinding machine parts such as rails, comprising a grinding device movable in a support frame between a position in which the grinding wheel is moved away from the grinding piece and a position in which the grinding wheel is in contact with this piece and a contact detection device grinding wheel with the piece.
  • a control system of this type is known by the EP 05 93 361, in its application to the grinding of rails, to redraw the profile or to erase signs of wave wear or skating wheels.
  • the main difficulty during such grinding comes from the rapid wear of the wheel during the job.
  • Known methods use principles of pressure limitation of the wheel on the rail or manual approaches, which does not guarantee sufficient precision and does not allow integration into this automatic process.
  • the present invention aims to propose a device capable of accurately detecting docking of the wheel on the rail and this whatever the conditions of use and the environment.
  • control system is characterized in that the means of detecting the contact between the grinding wheel and the workpiece is a device for detecting sparks produced during of this contact.
  • the detection device comprises a sensor of sparks arranged near the grinding wheel, connected to a detector of light, which is deported and arranged at a location protected against pests, and a means of transmission of light between the sensor and the detector.
  • transmission means are formed by an optical fiber.
  • the machine essentially comprises a grinding wheel 1 placed on a wheel trolley 2 movable along a beam 3 which is pivotally mounted to each of its ends on a moving device 4 in translation of the beam 3.
  • This training device in translation 4 of the beam is mounted on a module 5 of rotation of the beam around the rail 6.
  • This set is mounted on a support frame that has two elements 8, 9 each in the form of a frame through which extends the rail 6. The two frame elements are placed at a certain distance from each other, in the longitudinal direction of rail 6.
  • the grinding wheel 1 is rotatably mounted on the carriage 2 and is rotated by a hydraulic motor 11.
  • the device 4 for translational drive of the beam 3 essentially comprises a motor element 12 such as a cylinder provided with a rod 13 at the end of which is articulated the end of the beam 3.
  • the machine of grinding further comprises a device for retaining the rail 6, which essentially comprises thrust members 15 as well as at each frame frame 8, 9 a rail clamping cylinder 17 and a clamping cylinder of rails 18, which act perpendicular to the direction of the rail to push it back onto the stop elements 19.
  • the trolley-wheel 2 door above the wheel 1 a protection plate 20, advantageously aluminum, which extends perpendicular to the axis of the grinding wheel it.
  • a sensor 22 which allows the recognition of the emission of sparks produced when the wheel 1 comes into contact with the piece to be grinded, in the example shown the rail 6.
  • This sensor essentially comprises a block 21, advantageously made of aluminum, and a sensor member form of a plexiglass pellet 23, mounted in the block 21 at the bottom narrower of a conical channel 25 opening towards the grinding wheel 1 and arranged tangentially compared to the latter. The opening of the canal located at a distance from the contact point of the wheel with the rail.
  • the pellet is housed in a support 28 being screwed in abutment on the end an optical fiber 29.
  • the fiber is maintained in the block by a clamping screw 30
  • a blowing device of air is integrated in the block and comprises ducts 31 which open in channel 25 and through which air tablet is blown into the canal to prevent the dust and grinding particles can enter in the canal and get to the plexiglass pellet at bottom of the canal.
  • the other end of the optical fiber 29 is connected to a 33 formed light detector advantageously by a photodiode and mounted, together with its electronics, in a waterproof case 34 fixed on the grinding carriage 2, as seen on the Figure 2.
  • the housing 34 is remote from the sensor of sparks 22 and located at a location where it is protected against thermal variations, vibrations, grinding particles and dust.
  • the housing is cooled to prevent component degradation that it contains. As seen in Figure 2, the housing is at the top of the carriage 2, above the protection plate 20.
  • the grinding wheel is slightly inclined at an angle inclination of 1 or 2 ° relative to the rails, on the back of its longitudinal displacement movement. So the front of grinding wheel is biting and we get a almost point contact of the grinding wheel with the rail. The location of production of sparks during the landing of the grinding wheel on the rail is therefore well defined.
  • the invention has many advantages over compared to the state of the art.
  • a process optical detection of the docking of the wheel on the by recognition of the emission of sparks in taking into account in particular the frequency of light Issued according to the temperature of the detached grains and heated by friction, the invention is not subject to noise propagating in the rail.
  • the offset light detecting means and controls, point of light capture by optical fibers ensures perfect protection against variations thermal, vibration, dust and noise.
  • the protection against light parasites is ensured by the use of an infrared wavelength and an angle of capture of the end of the optical fiber. Protection against electrical noise is obtained by the arrangement in a compact block of the detector and the electronic processing unit.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Constituent Portions Of Griding Lathes, Driving, Sensing And Control (AREA)
  • Machines For Laying And Maintaining Railways (AREA)

Claims (10)

  1. Vorrichtung zur Steuerung der Schleifscheibe (1) einer Schleifmaschine für Werkstücke, wie etwa Schienen, mit einer Vorrichtung (2) zum Tragen der Schleifscheibe (1), die in einem Traggestell (8, 9) zwischen einer Stellung, in welcher die Schleifscheibe (1) vom zu schleifenden Werkstück (6) beabstandet ist, und einer Stellung verstellbar ist, in welcher die Schleifscheibe (1) mit diesem Werkstück in Kontakt steht, und einer Vorrichtung (22) zum Erfassen des Kontakts der Schleifscheibe (1) mit dem Werkstück (6), die aus einer Vorrichtung zum Erfassen der bei diesem Kontakt erzeugten Funken gebildet ist, dadurch gekennzeichnet, dass die Erfassungsvorrichtung einen Funkendetektor (22) enthält, der nahe der Schleifscheibe (1) angeordnet ist und mit einem Lichtsensor (33) verbunden ist, der versetzt und an einer vor Störungen geschützten Stelle angeordnet ist, sowie einem Mittel (29) zum Übertragen des Lichts zwischen dem Detektor (22) und dem Sensor (33).
  2. Steuerungsvorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass die Mittel (29) zum Übertragen der Lichtsignale aus einem Lichtwellenleiter gebildet sind.
  3. Steuerungsvorrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass der Detektor (22) ein Erfassungsglied (23) enthält, das an einem Ende eines einen Kanal (25) begrenzenden Gliedes angeordnet ist, welcher Kanal sich in Richtung der Schleifscheibe (1) öffnet, und dass das Übertragungsmittel (29) mit dem Erfassungsglied (23) verbunden ist.
  4. Steuerungsvorrichtung nach Anspruch 3, dadurch gekennzeichnet, dass der Detektor (22) einen Block (21) vorzugsweise aus Aluminium enthält, in dem der vorgenannte Kanal (25) in Form eines konischen Kanals ausgebildet ist, an dessen Boden das Erfassungsglied (23) angeordnet ist.
  5. Steuerungsvorrichtung nach einem der Ansprüche 3 oder 4, dadurch gekennzeichnet, dass das Erfassungsglied (23) eine Tablette aus transparentem Material, vorzugsweise aus Plexiglas ist.
  6. Steuerungsvorrichtung nach einem der Ansprüche 3 bis 5, dadurch gekennzeichnet, dass die Achse des Kanals (25) einen Neigungswinkel (α) gegenüber der zu schleifenden Fläche des zu schiebenden Werkstücks (6) aufweist, wobei der Winkel so gewählt ist, dass er eine optimale Erfassung der Funken gewährleistet, und tangential zum Entstehungsort der Funken angeordnet ist.
  7. Steuerungsvorrichtung nach einem der Ansprüche 3 bis 6, dadurch gekennzeichnet, dass der Detektor (22) Mittel (31) zum Einblasen von Druckluft in den Detektorkanal (25) enthält, um das Eindringen von Staub und Schleifpartikel in den Kanal zu verhindern.
  8. Steuerungsvorrichtung nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, dass die Sensorvorrichtung ein Lichterfassungsglied, wie etwa eine Photodiode (33), enthält.
  9. Steuerungsvorrichtung nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, dass eine Schutzplatte (20) zwischen Schleifscheibe und Sensorvorrichtung (33) angeordnet ist.
  10. Steuerungsvorrichtung nach einem der Ansprüche 1 bis 9, dadurch gekennzeichnet, dass die Schleiffläche der Schleifscheibe (1) einen geringen Neigungswinkel (α) aufweist, der einen quasipunktförmigen Kontakt der Schleischeibe (1) mit dem zu schleifenden Werkstück (6) gewährleistet, wobei der Detektor (22) tangential zur quasipunktförmigen Kontaktstelle angeordnet ist.
EP01402518A 2000-09-29 2001-09-28 Steuervorrichtung für eine Schienenschleifmaschine Expired - Lifetime EP1193345B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0012448 2000-09-29
FR0012448A FR2814765B1 (fr) 2000-09-29 2000-09-29 Systeme de commande de la meule d'une machine de meulage notamment de rails

Publications (2)

Publication Number Publication Date
EP1193345A1 EP1193345A1 (de) 2002-04-03
EP1193345B1 true EP1193345B1 (de) 2005-04-20

Family

ID=8854833

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01402518A Expired - Lifetime EP1193345B1 (de) 2000-09-29 2001-09-28 Steuervorrichtung für eine Schienenschleifmaschine

Country Status (4)

Country Link
EP (1) EP1193345B1 (de)
AT (1) ATE293720T1 (de)
DE (1) DE60110177T2 (de)
FR (1) FR2814765B1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101966690A (zh) * 2010-07-27 2011-02-09 上海瑞纽机械装备制造有限公司 光感测自动磨削探位系统及方法

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITVE20110025A1 (it) * 2011-04-26 2012-10-27 Fama S R L Macchina molatrice tangenziale.
CN110587232B (zh) * 2019-09-07 2020-11-17 东莞天盛电子制品有限公司 一种导轨灯槽自动化生产线工艺
CN113696025A (zh) * 2021-10-15 2021-11-26 北京星通浩宇科技发展有限公司 一种钢铝复合轨贫铬层自动清除设备
CN116551545B (zh) * 2023-05-10 2024-02-13 南京惠然测控技术有限公司 一种传感器部件加工可降尘抛光装置

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63200967A (ja) * 1987-02-13 1988-08-19 Toshiba Corp 研削砥石姿勢制御装置
JP2946662B2 (ja) * 1990-07-03 1999-09-06 大同特殊鋼株式会社 棒鋼のバリ取機
FR2696762B1 (fr) 1992-10-14 1994-12-30 Geismar Anc Ets L Procédé de meulage de la jonction bout-à-bout par soudage notamment de deux rails et machine de meulage pour la mise en Óoeuvre de ce procédé.

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101966690A (zh) * 2010-07-27 2011-02-09 上海瑞纽机械装备制造有限公司 光感测自动磨削探位系统及方法

Also Published As

Publication number Publication date
EP1193345A1 (de) 2002-04-03
ATE293720T1 (de) 2005-05-15
DE60110177D1 (de) 2005-05-25
FR2814765A1 (fr) 2002-04-05
FR2814765B1 (fr) 2004-02-13
DE60110177T2 (de) 2006-03-09

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