WO2001039923A2 - Machine-outil, notamment machine-outil a plateau long - Google Patents

Machine-outil, notamment machine-outil a plateau long Download PDF

Info

Publication number
WO2001039923A2
WO2001039923A2 PCT/EP2000/011106 EP0011106W WO0139923A2 WO 2001039923 A2 WO2001039923 A2 WO 2001039923A2 EP 0011106 W EP0011106 W EP 0011106W WO 0139923 A2 WO0139923 A2 WO 0139923A2
Authority
WO
WIPO (PCT)
Prior art keywords
machine
machine unit
machine tool
damping device
movable
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.)
Ceased
Application number
PCT/EP2000/011106
Other languages
German (de)
English (en)
Other versions
WO2001039923A3 (fr
Inventor
Dietrich Geiger
Gerald Stengele
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.)
Hueller Hille GmbH
Original Assignee
Hueller Hille GmbH
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
Priority claimed from DE10012655A external-priority patent/DE10012655C1/de
Application filed by Hueller Hille GmbH filed Critical Hueller Hille GmbH
Publication of WO2001039923A2 publication Critical patent/WO2001039923A2/fr
Anticipated expiration legal-status Critical
Publication of WO2001039923A3 publication Critical patent/WO2001039923A3/fr
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
    • B23Q11/0032—Arrangements for preventing or isolating vibrations in parts of the machine
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q5/00—Driving or feeding mechanisms; Control arrangements therefor
    • B23Q5/22—Feeding members carrying tools or work
    • B23Q5/34—Feeding other members supporting tools or work, e.g. saddles, tool-slides, through mechanical transmission
    • B23Q5/38—Feeding other members supporting tools or work, e.g. saddles, tool-slides, through mechanical transmission feeding continuously
    • B23Q5/40—Feeding other members supporting tools or work, e.g. saddles, tool-slides, through mechanical transmission feeding continuously by feed shaft, e.g. lead screw
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H25/00—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms
    • F16H25/18—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for conveying or interconverting oscillating or reciprocating motions
    • F16H25/20—Screw mechanisms
    • F16H25/24—Elements essential to such mechanisms, e.g. screws, nuts
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H19/00—Gearings comprising essentially only toothed gears or friction members and not capable of conveying indefinitely-continuing rotary motion
    • F16H19/02—Gearings comprising essentially only toothed gears or friction members and not capable of conveying indefinitely-continuing rotary motion for interconverting rotary or oscillating motion and reciprocating motion
    • F16H19/06—Gearings comprising essentially only toothed gears or friction members and not capable of conveying indefinitely-continuing rotary motion for interconverting rotary or oscillating motion and reciprocating motion comprising flexible members, e.g. an endless flexible member
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H25/00—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms
    • F16H25/18—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for conveying or interconverting oscillating or reciprocating motions
    • F16H25/20—Screw mechanisms
    • F16H25/24—Elements essential to such mechanisms, e.g. screws, nuts
    • F16H2025/2436—Intermediate screw supports for reducing unsupported length of screw shaft

Definitions

  • Machine tool in particular long-bed machine tool
  • the invention relates to a machine tool or a handling device, in particular a long-bed machine tool, with at least one machine unit which can be moved along a guide with respect to a machine frame or a subordinate machine unit, in particular a slide, which can be driven by means of a threaded spindle with a rotary motor, and at least one damping device has at least one support bearing movable in the direction of the movable machine unit for suppressing vibrations on the threaded spindle.
  • an arrangement referred to there as a damping device comprising two support bearings coupled and guided via a connecting rod is carried along by stops from the movable machine unit and moved with it. This ensures that the maximum free length of the threaded spindle corresponds approximately to half the distance covered by the movable machine unit.
  • the support bearings can consist of a plain bearing or a roller bearing, for. B. a ball bearing and a sliding bush, which ensures the axial displacement of the support bearing relative to the threaded spindle.
  • a disadvantage of the known design is that the movable machine unit abruptly strikes an associated stop of the damping device at high speeds and brings it to the speed of the moving machine unit in the shortest possible way and therefore with extremely high acceleration. Due to the shock-like load, the machine structure is also loaded and vibrated. These have a negative impact on the work result. A reaction to the drive of the threaded spindle can also have negative effects on the control behave and control the quality of the drive.
  • Another disadvantage is that when the movable machine unit strikes the damping device, a so-called elastic shock occurs, which causes the damping device to be thrown away at high speed because of the large difference in mass between the damping device and the movable machine unit. This can lead to a multiple impact of the movable machine unit on the damping device and, in extreme cases, to a multiple oscillation of the damping device between the stops, likewise with the negative effects on the work result described above.
  • the object of the invention is to control the movement of a damping device in every operating state.
  • a forced movement of a damping device takes place as a function of the movement of the second machine unit by means of a transmission which has at least one traction means guided over at least one deflection roller.
  • the traction means can be ropes, belts, tapes or chains, which are arranged in a gearbox according to the pulley principle.
  • the gear unit is designed so that, in addition to avoiding impact impacts, it is also ensured that the support bearings always divide the free sections of the threaded spindle into essentially the same partial sections. This ensures the smallest possible maximum free length of the threaded spindle in every operating state.
  • two traction means are each connected on the one hand to the machine frame or the subordinate machine unit and on the other hand to the movable machine unit and two deflection rollers are arranged on the damping device.
  • the two support bearings assigned to a damping device can be connected by a rod-like machine element.
  • the damping device can be guided on the machine frame or on the lower-level machine unit. However, the damping device can also be guided on the moving machine unit.
  • Each support bearing can have a bearing part which at least partially encompasses the threaded spindle and which is at least axially movable with respect to the threaded spindle. Exemplary embodiments of the invention illustrated in the drawing are explained below; show it:
  • FIG. 4 shows another embodiment of the object according to FIG. 2,
  • FIG. 5 shows a section in the direction A-A through the object according to FIG. 4,
  • FIG. 6 shows another embodiment of the object according to FIG. 2,
  • FIG. 7 shows a section in the direction B-B through the object according to FIG. 6.
  • the machine frame 12 or the subordinate machine unit carries guides 2 for a machine unit 1 that can be moved along these guides, typically a carriage.
  • the movable machine unit 1 carries a spindle nut 3 for a threaded spindle 4, which is typically designed as a ball screw.
  • the threaded spindle 4 is driven in rotation by a motor 5 arranged on the machine frame 12 and is supported at 8 on both sides in the machine frame 12. By actuating the motor 5 in one or the other direction of rotation, the movable machine Move unit 1 from the threaded spindle in one direction or the other along its guides 2. This is indicated by a double arrow 15.
  • a damping device which, in the embodiments shown, consists of two support bearings 9 arranged on both sides of the spindle nut 3, which are guided in assigned linear guides 10 of the machine frame 12 and over a rigid connecting rod 11 are interconnected.
  • the mutual spacing of the support bearings 9 corresponds in the illustrated embodiments to approximately half the length of the threaded spindle 4.
  • Each support bearing 9 carries a deflection roller 6 for an associated, deflectable traction means 7 guided over it.
  • the traction means 7 can be ropes, belts, belts, chains or the like.
  • One end of each traction means 7 is attached to the movable machine unit 1 and the other end to the machine frame 12. Between the two ends, each traction device is guided over its deflection roller 6.
  • a support bearing 14 for the threaded spindle 4 is also indicated in FIG. In the embodiment according to FIG. 4, such a guide bearing 14 for the threaded spindle 4 can also be located on the movable machine unit 1, where it is arranged at a distance from the spindle nut 3.
  • the same reference numerals designate the same parts.
  • the two support bearings 9 are connected to one another via a rigid guide element 13, which in turn is guided on the movable machine unit 1.
  • the movable machine unit 1 can carry an additional support bearing 14.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Machine Tool Units (AREA)
  • Auxiliary Devices For Machine Tools (AREA)

Abstract

L'invention concerne une machine-outil ou un appareil de manipulation, notamment une machine-outil à plateau long, comprenant au moins une unité de machine (1), notamment un chariot, pouvant se déplacer par rapport à un bâti (2) ou à une unité de machine sous-jacente, le long d'une glissière (2). Cette unité de machine (1) peut être entraînée par un moteur rotatif (5) par l'intermédiaire d'une broche filetée (4) et présente au moins un dispositif d'amortissement constitué d'au moins un système d'appui (9) pouvant se déplacer en direction de l'unité de machine mobile pour supprimer les vibrations au niveau de la broche filetée (4). Pour permettre le contrôle du déplacement du ou des dispositifs d'amortissement, dans chaque état de fonctionnement, le ou les dispositifs d'amortissement peuvent être déplacé(s) en fonction du déplacement de l'unité de machine mobile (1) au moyen d'au moins un mécanisme qui présente au moins un moyen de traction (7) guidé par l'intermédiaire d'au moins une poulie de renvoi (6).
PCT/EP2000/011106 1999-11-30 2000-11-10 Machine-outil, notamment machine-outil a plateau long Ceased WO2001039923A2 (fr)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
DE19957704 1999-11-30
DE19957702 1999-11-30
DE19957702.1 1999-11-30
DE19957704.8 1999-11-30
DE10012655.3 2000-03-15
DE10012655A DE10012655C1 (de) 1999-11-30 2000-03-15 Werkzeugmaschine, insbesondere Langbett-Werkzeugmaschine

Publications (2)

Publication Number Publication Date
WO2001039923A2 true WO2001039923A2 (fr) 2001-06-07
WO2001039923A3 WO2001039923A3 (fr) 2004-02-19

Family

ID=27213727

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2000/011106 Ceased WO2001039923A2 (fr) 1999-11-30 2000-11-10 Machine-outil, notamment machine-outil a plateau long

Country Status (1)

Country Link
WO (1) WO2001039923A2 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20150122062A1 (en) * 2013-11-01 2015-05-07 Yamaha Hatsudoki Kabushiki Kaisha Actuator
US20150143935A1 (en) * 2013-11-28 2015-05-28 Hiwin Technologies Corp. Ball screw with support devices
CN108204434A (zh) * 2016-12-13 2018-06-26 上银科技股份有限公司 具有模块化支撑装置的线性传动机构
CN112570588A (zh) * 2019-09-27 2021-03-30 广东美的智能机器人有限公司 引导机构及装配系统

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2867386B2 (ja) * 1988-08-31 1999-03-08 日本精工株式会社 送りねじ支持装置
JP3221804B2 (ja) * 1994-09-28 2001-10-22 先生精機株式会社 アクチュエータ
DE19636272A1 (de) * 1996-09-06 1998-03-12 Star Gmbh Linearführungseinrichtung

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20150122062A1 (en) * 2013-11-01 2015-05-07 Yamaha Hatsudoki Kabushiki Kaisha Actuator
US9752664B2 (en) * 2013-11-01 2017-09-05 Yamaha Hatsudoki Kabushiki Kaisha Actuator
US20150143935A1 (en) * 2013-11-28 2015-05-28 Hiwin Technologies Corp. Ball screw with support devices
US9360096B2 (en) * 2013-11-28 2016-06-07 Hiwin Technologies Corp. Ball screw with support devices
CN108204434A (zh) * 2016-12-13 2018-06-26 上银科技股份有限公司 具有模块化支撑装置的线性传动机构
CN112570588A (zh) * 2019-09-27 2021-03-30 广东美的智能机器人有限公司 引导机构及装配系统
CN112570588B (zh) * 2019-09-27 2024-06-04 广东美的智能机器人有限公司 引导机构及装配系统

Also Published As

Publication number Publication date
WO2001039923A3 (fr) 2004-02-19

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