WO2008032174A2 - Actionneur linéaire constitué d'éléments de jonction monolithiques moulés sous pression - Google Patents

Actionneur linéaire constitué d'éléments de jonction monolithiques moulés sous pression Download PDF

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Publication number
WO2008032174A2
WO2008032174A2 PCT/IB2007/002601 IB2007002601W WO2008032174A2 WO 2008032174 A2 WO2008032174 A2 WO 2008032174A2 IB 2007002601 W IB2007002601 W IB 2007002601W WO 2008032174 A2 WO2008032174 A2 WO 2008032174A2
Authority
WO
WIPO (PCT)
Prior art keywords
linear actuator
elements
pressure die
realised
casting
Prior art date
Application number
PCT/IB2007/002601
Other languages
English (en)
Other versions
WO2008032174A3 (fr
Inventor
Graziano Bertocchi
Original Assignee
Motus Tech S.R.L. Motion Technology
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 Motus Tech S.R.L. Motion Technology filed Critical Motus Tech S.R.L. Motion Technology
Publication of WO2008032174A2 publication Critical patent/WO2008032174A2/fr
Publication of WO2008032174A3 publication Critical patent/WO2008032174A3/fr

Links

Classifications

    • 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
    • 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
    • B23Q5/28—Electric drives
    • 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
    • F16H2019/0681—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 the flexible member forming a closed loop
    • F16H2019/0686—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 the flexible member forming a closed loop the flexible member being directly driven by a pulley or chain wheel
    • 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
    • F16H2025/2031—Actuator casings
    • F16H2025/2034—Extruded frame casings
    • 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

Definitions

  • linear actuators are frequently used . These are based on hydraulic or electro-mechanical technologies.
  • Such movement systems can also be used to create major shifts (four metres long distances ), which may not be back straight, meaning they could involve curved trajectory.
  • the manufactures of these systems must guarantee specific mechanical characteristics which were previously requested by the buyer.
  • the mentioned factories prefer to receive the actuators when they are already assembled by the makers, so that their functionality can be guaranteed. This is because factories are aware of the type of difficulties that may arise during the assembly of the actuators. Many are the types of actuators currently known. They are basical ly made of a gu ide, on which a motor truck sl ides and movement means of the mentioned motor truck. The linear movement is produced by a trapezium or spherical screw, or through a toothed belt. The actuators are completed by many other in-between elements, needed for the assembly of al l parts, as wel l as the conjunction between the actuator and the plant to move.
  • these elements are realised in either al umin i um or steel . They are realised through machines used to remove metal shavings obstructing electroplate process.
  • the mentioned guide endowed with a sectioned geometrical structure, has a very important function : it is needed as static support.
  • the guide's mechanical resistance determines the application field of the actuator.
  • An object of the present invention is to define a linear actuator wh ich offers a resistance to the wear and tear (caused by its usage) superior to the one offered by actuators built with more common methods. Another object is to define a l inear actuator which can be resistant to bending and torsion, so that it can be suitable for carrying heavy weights.
  • Another object is to define a linear actuator presenting an efficiency of its junction parts and lasting longer than common actuators. Another object is to defi ne a linear actuator which can be built in such a way it can take up any configuration, back straight as well as curvy, even when running at a certain speed and with less resistant guide sections.
  • a further object is to define a linear actuator capable of being assembled easily by the buyer, thanks to the simplicity of its monol ithic elements. Finally, the aim is to realise an actuator at a low cost.
  • a l inear actuator is made up of a guide G, a motor truck 4 and movement elements M.
  • the guide G realised through a notorious aluminium extrusion technique, is joined to other guides G1 , G2, Gn...through monolithic joining elements 2 and it shows terminal elements at its extremities 3A, 3B.
  • the joining monolithic elements 2 are real ised through pressure die casting techniques of light hard al loys or plastics.
  • the invention includes a alloy zinc known as ZAMA ( aluminium 0, 1 ⁇ 4%, copper 1 ⁇ 3%, magnesium 0, 02 ⁇ 0, 06%, the rest is 99, 99% pure zinc) for the realisation of the joining monol ithic elements.
  • Such ZAMA alloy gives the joining monolithic elements 2 a very high precision and very high structural rigidity which, in typical complex configuration of actuators, profitably offers minor torsional bending , which means less osci llation of the loads moved by the actuators.
  • the terminal elements which are made of ZAMA too, are particu larly resistant to time, particularly useful in points which are subjected to strain, such as assemblage threads.
  • a motor truck 4 made by numerous suitable and fit elements P, wil l regulate its position and link it to its movement elements M.
  • the drawing shows these elements as toothed belt.
  • the mentioned motor truck was realised through pressure die-casting of ZAMA. This ensures an increased, excel lent durability of the threads and the coupled sliding surfaces, as well as a high bending rigidity during the use of the actuator.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Actuator (AREA)
  • Transmission Devices (AREA)
  • Linear Motors (AREA)

Abstract

L'invention concerne un actionneur linéaire caractérisé en ce qu'il est constitué d'éléments monolithiques formés par moulage sous pression de matières plastiques ou d'alliages légers ou durs.
PCT/IB2007/002601 2006-09-11 2007-09-11 Actionneur linéaire constitué d'éléments de jonction monolithiques moulés sous pression WO2008032174A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITBG2006A000043 2006-09-11
ITBG20060043 ITBG20060043A1 (it) 2006-09-11 2006-09-11 Attuatore lineare ad elementi di giunzione in costituzione monolitica pressofusa.

Publications (2)

Publication Number Publication Date
WO2008032174A2 true WO2008032174A2 (fr) 2008-03-20
WO2008032174A3 WO2008032174A3 (fr) 2008-06-26

Family

ID=39152601

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2007/002601 WO2008032174A2 (fr) 2006-09-11 2007-09-11 Actionneur linéaire constitué d'éléments de jonction monolithiques moulés sous pression

Country Status (2)

Country Link
IT (1) ITBG20060043A1 (fr)
WO (1) WO2008032174A2 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2110579A1 (fr) * 2008-04-15 2009-10-21 Festo AG & Co. KG Entraînement linéaire électrique
EP2110201A1 (fr) * 2008-04-15 2009-10-21 Festo AG & Co. KG Entraînement linéaire électrique
JP2013092214A (ja) * 2011-10-26 2013-05-16 Nsk Ltd アクチュエータ
JP2016095035A (ja) * 2016-02-22 2016-05-26 日本精工株式会社 アクチュエータ

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2811484A (en) * 1956-06-20 1957-10-29 Dow Chemical Co Electrodeposition of zinc on magnesium and its alloys
DE4397555T1 (de) * 1993-09-02 1997-07-31 Smc Kk Konstruktionskörper für Betätigungselemente
EP0647503A3 (fr) * 1993-10-12 1995-12-13 Smc Kk Unité de guidage linéaire et système d'unité de guidage linéaire.
JP3634027B2 (ja) * 1995-10-03 2005-03-30 Ｓｍｃ株式会社 電動アクチュエータ
JP2000088071A (ja) * 1998-09-18 2000-03-28 Smc Corp 電動アクチュエータ

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2110579A1 (fr) * 2008-04-15 2009-10-21 Festo AG & Co. KG Entraînement linéaire électrique
EP2110201A1 (fr) * 2008-04-15 2009-10-21 Festo AG & Co. KG Entraînement linéaire électrique
JP2013092214A (ja) * 2011-10-26 2013-05-16 Nsk Ltd アクチュエータ
JP2016095035A (ja) * 2016-02-22 2016-05-26 日本精工株式会社 アクチュエータ

Also Published As

Publication number Publication date
WO2008032174A3 (fr) 2008-06-26
ITBG20060043A1 (it) 2008-03-12

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