EP2995420A1 - Bandschleifvorrichtung für eine ebene fläche eines auf einer drehbank montierten werkstücks - Google Patents

Bandschleifvorrichtung für eine ebene fläche eines auf einer drehbank montierten werkstücks Download PDF

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Publication number
EP2995420A1
EP2995420A1 EP15185066.6A EP15185066A EP2995420A1 EP 2995420 A1 EP2995420 A1 EP 2995420A1 EP 15185066 A EP15185066 A EP 15185066A EP 2995420 A1 EP2995420 A1 EP 2995420A1
Authority
EP
European Patent Office
Prior art keywords
support
plane
abrasive belt
abrasive
strip
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.)
Withdrawn
Application number
EP15185066.6A
Other languages
English (en)
French (fr)
Inventor
Christophe Gourgues
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP2995420A1 publication Critical patent/EP2995420A1/de
Withdrawn legal-status Critical Current

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Classifications

    • 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
    • B24B21/00—Machines or devices using grinding or polishing belts; Accessories therefor
    • B24B21/004—Machines or devices using grinding or polishing belts; Accessories therefor using abrasive rolled strips
    • 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
    • B24B21/00—Machines or devices using grinding or polishing belts; Accessories therefor
    • B24B21/04—Machines or devices using grinding or polishing belts; Accessories therefor for grinding plane surfaces
    • B24B21/10—Machines or devices using grinding or polishing belts; Accessories therefor for grinding plane surfaces involving a rigid member, e.g. pressure bar, table, pressing or supporting the belt over substantially its whole span
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D15/00—Hand tools or other devices for non-rotary grinding, polishing, or stropping
    • B24D15/04—Hand tools or other devices for non-rotary grinding, polishing, or stropping resilient; with resiliently-mounted operative surface

Definitions

  • the invention relates to a machine for a conventional or digital machining lathe.
  • the piece can be metal, wood, plastic, composite etc ...
  • the canvas is held by the hands of the operator and the latter applies the tape on the part that rotates with a force it does not control.
  • a tool FR 2 966 071 comprising a support provided with means for mechanically holding the two ends of an abrasive cloth web bearing exclusively on two linear bearing surfaces spaced apart from each other.
  • This support is therefore like an aluminum block, a so-called front face is formed of two secant surfaces arranged in V, the strip bears on the two free edges of the vee and is stretched when the strip is brought into contact with the room. This tension increases if you keep getting closer to the room. The strip never comes into contact with the front face of the support other than at the two free edges.
  • the support is fixed on the lathe via a mast and a carriage which allows to approach the device of the piece to be polished.
  • This tool is made to work cylindrical parts of revolution or conical parts.
  • the risk is the accident.
  • the invention proposes to provide a solution to the risk of accident.
  • the subject of the invention is a device for shaping to act on a flat surface comprising a support provided with means for holding mechanically the two ends of an abrasive belt this device being characterized in that it comprises a flat support located at the rear of the abrasive belt in contact therewith which flat support is secured to the means for holding the strip and the set is mounted swiveling and flexible.
  • a flattening device 1 for flat surface of an object fixed by the jaws of a lathe there is shown a flattening device 1 for flat surface of an object fixed by the jaws of a lathe.
  • This device comprises a support 2 provided with means 3 for mechanically holding the two ends of an abrasive strip 4.
  • planar support plane situated at the rear of the abrasive belt in contact with the said strip, so that the back of the abrasive belt bears on the said plane 5 of support plane which plane 5 d support is solidarity means to hold the band and all is mounted swivel and flexible.
  • abrasive belt rests on the entire support plane and the ends of this abrasive belt extend rearwardly.
  • the abrasive belt To polish a flat surface, the abrasive belt must be flat. For this purpose, its rear face is supported on a plane supporting plane 5 which is mounted flexible and orientable that is to say that it can move slightly and back. It is the plane of the piece to be polished which must be considered as the reference surface.
  • the abrasive belt should orient at the beginning of the polishing with respect to the surface to be polished which has asperities. During polishing, the asperities will disappear and the support plane will resume its neutral position.
  • the band is slightly stretched to apply on the support plane 5
  • the support plane 5 is therefore, for example, mounted via resilient means 6 such as springs on a table. In this case there are four springs.
  • plan 5 support plane is secured to the fastening means 3 of the band and it is all that is orientable and flexible.
  • the device then comprises a mast 7 for fixing it to a lathe, this mast carries a table 8 on which is mounted resiliently the support 2 with its supporting plane 5 for the abrasive belt and the means 3 for fixing and possibly tensioning the band.
  • the table 8 is connected to the support 2 by special screws 11 called calibrated retaining screws mounted through bores made in the table, these screws serving as guides and fixing for springs mounted between the table and the support.
  • the figure 3 shows the retaining screws and the elastic means 6 which allow the support 2 and therefore the support plane 5 to move relative to the table 8. As will be understood, this is not the position of the support plane 5 which dictates sanding work as will a machining tool.
  • the means 3 for locking the band comprises at least one eccentric 30 acting directly on the abrasive belt or on a pad coming to rest on the band which itself bears on a sole.
  • the eccentric is integral with a maneuvering axis which carries a knurled knob.
  • a knurled knob for its operation.
  • This axis is guided in rotation on the support and on this axis is immobilized in rotation two eccentric rings which will come, during the rotation of the axis apply the abrasive belt on a suitable surface such a pavement.
  • eccentric ring By eccentric ring will be understood a ring whose axis is off-center or a ring whose peripheral surface is dictated by a radius of variable length depending on the angular rotation of the axis.
  • the mast is fixed on a tower carriage and the device is brought to contact the abrasive belt with the surface, the movement is continued to apply the band but this movement must leave movement to the support plane.
  • the support plane 5 for the back of the abrasive belt is disposed in front of the support 2 so that the support 2 does not interfere because it is placed behind the abrasive belt.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
  • Polishing Bodies And Polishing Tools (AREA)
EP15185066.6A 2014-09-15 2015-09-14 Bandschleifvorrichtung für eine ebene fläche eines auf einer drehbank montierten werkstücks Withdrawn EP2995420A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1458623A FR3025736B1 (fr) 2014-09-15 2014-09-15 Dispositif de toilage pour face plane d'une piece montee sur un tour

Publications (1)

Publication Number Publication Date
EP2995420A1 true EP2995420A1 (de) 2016-03-16

Family

ID=51842603

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15185066.6A Withdrawn EP2995420A1 (de) 2014-09-15 2015-09-14 Bandschleifvorrichtung für eine ebene fläche eines auf einer drehbank montierten werkstücks

Country Status (2)

Country Link
EP (1) EP2995420A1 (de)
FR (1) FR3025736B1 (de)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2235446A (en) * 1939-07-10 1941-03-18 Milton H Birger Surfacing means
US2258733A (en) 1940-08-30 1941-10-14 Gen Motors Corp Sanding machine
DE3037201A1 (de) 1980-10-02 1982-04-22 Siegfried 5000 Köln Erdmann Vorrichtung zum schleifen
FR2966071A1 (fr) 2010-10-18 2012-04-20 Christophe Gourgues Outil pour usinage par toile abrasive de pieces cylindriques, coniques ou spheriques, pour finition de surfaces sur machines d'usinage

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2235446A (en) * 1939-07-10 1941-03-18 Milton H Birger Surfacing means
US2258733A (en) 1940-08-30 1941-10-14 Gen Motors Corp Sanding machine
DE3037201A1 (de) 1980-10-02 1982-04-22 Siegfried 5000 Köln Erdmann Vorrichtung zum schleifen
FR2966071A1 (fr) 2010-10-18 2012-04-20 Christophe Gourgues Outil pour usinage par toile abrasive de pieces cylindriques, coniques ou spheriques, pour finition de surfaces sur machines d'usinage

Also Published As

Publication number Publication date
FR3025736A1 (fr) 2016-03-18
FR3025736B1 (fr) 2017-04-14

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