EP0441006A2 - Werkzeug für eine Bearbeitungsmaschine für Steinmaterial oder dergleichen - Google Patents

Werkzeug für eine Bearbeitungsmaschine für Steinmaterial oder dergleichen Download PDF

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Publication number
EP0441006A2
EP0441006A2 EP90203496A EP90203496A EP0441006A2 EP 0441006 A2 EP0441006 A2 EP 0441006A2 EP 90203496 A EP90203496 A EP 90203496A EP 90203496 A EP90203496 A EP 90203496A EP 0441006 A2 EP0441006 A2 EP 0441006A2
Authority
EP
European Patent Office
Prior art keywords
major axis
tool
cutters
drum
ring
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Withdrawn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
EP90203496A
Other languages
English (en)
French (fr)
Other versions
EP0441006A3 (en
Inventor
Mario Lucchesi
Giovanni Costantini
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.)
VINCENT SpA
Original Assignee
VINCENT SpA
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 VINCENT SpA filed Critical VINCENT SpA
Publication of EP0441006A2 publication Critical patent/EP0441006A2/de
Publication of EP0441006A3 publication Critical patent/EP0441006A3/en
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28D—WORKING STONE OR STONE-LIKE MATERIALS
    • B28D1/00—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor
    • B28D1/18—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by milling, e.g. channelling by means of milling tools
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28D—WORKING STONE OR STONE-LIKE MATERIALS
    • B28D1/00—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor
    • B28D1/18—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by milling, e.g. channelling by means of milling tools
    • B28D1/186—Tools therefor, e.g. having exchangeable cutter bits
    • B28D1/188—Tools therefor, e.g. having exchangeable cutter bits with exchangeable cutter bits or cutter segments

Definitions

  • This invention relates to a tool for dressing machines for stone material or the like, of the type comprising a drum rotating about its major axis and supporting a plurality of rings such that their major axis is concentric with said major axis of the drum, said rings having a lateral surface on which cutters are fixed at a regular distance apart.
  • these types of tool receive their cutting motion by rotating about the major axis of the drum, the workpiece to be machined being driven forward while resting on the machine table.
  • the rings are fixed to the drum at equal distances apart and support the cutters, which are rectangular in plan, with their minor side equal to the thickness of the ring which carries them.
  • the existence of the distance between the rings means that machined surfaces without roughness cannot be obtained. Properly finished surfaces can only be currently obtained by increasing the number of tools operating virtually simultaneously on one and the same workpiece.
  • the object of the invention is to provide a tool for dressing machines for stone material or the like which overcomes the aforesaid drawbacks by eliminating chip expulsion problems while at the same time providing an excellent surface finish to the machined material.
  • a tool for dressing machines for stone material or the like comprising a drum with its major axis coinciding with the axis of rotation of the tool, said drum supporting fixed thereto a plurality of rings with their major axis concentric to the major axis of the drum, said rings supporting at a regular distance apart on their lateral surface a plurality of cutters each of which has a major axis, characterised in that the arrangement of the cutters on the ring which carries them is such that their major axis is skew to the major axis of the ring and thus to the major axis of the drum when said ring is mounted coaxially on said drum in direct contact with the adjacent rings.
  • each cutter to expel the removed material.
  • the strict succession arrangement of the rings enables the cutters to form a single cutting face, so improving the surface finish of the machine workpiece,
  • the drum 2 is provided with through holes 9 positioned along the circumference of an inner flange 10, and with an annular plate 11 to house a bearing, not shown.
  • the tool thus rotates about the axis 4 idly supported at the annular plate 11, while at the inner flange 10 a flanged shaft (not shown) transmits to it the torque required for exercising the cutting action.
  • Each ring 3 supports on its lateral surface a plurality of cutters 12 which in the illustrated case are of parallelogram shape in plan view and are constructed of a diamond based sintered material.
  • Each cutter has its major axis 13 skew to the major axis of the relative ring 3, and thus skew both to the major axis 4 of the drum 2 and to the axis of rotation 4 of the tool when said ring 3 is mounted on the drum 2.
  • the major axes 13 of its cutters are arranged such that the major axes 13 of the corresponding cutters 12 on its adjacent rings 3 are aligned to form one or more continuous cutting faces 14 with their major axis skew to the major axis 4 of the drum 2.
  • Figures 2 and 3 show a tool in which the cutting faces 14 extend helically.
  • Figures 4 and 5 show a tool in which the cutting faces 14 converge towards the centre of the tool.
  • Figures 6 and 7 show a tool in which the cutting faces 14 extend in an undulating pattern.
  • each cutter 12 measured perpendicular to its major axis 13 is less than the distance, measured in the same direction, between two adjacent cutters 12 of one and the same ring 3.
  • the length of a cutter 12 measured along the relative major axis 13 is greater than the distance between two successive cutters of one and the same ring 3.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)
EP19900203496 1990-02-06 1990-12-24 Tool for dressing machines for stone material or the like Withdrawn EP0441006A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT1927390 1990-02-06
IT19273A IT1238478B (it) 1990-02-06 1990-02-06 Utensile per macchine calibratrici di materiali lapidei o simili

Publications (2)

Publication Number Publication Date
EP0441006A2 true EP0441006A2 (de) 1991-08-14
EP0441006A3 EP0441006A3 (en) 1991-10-16

Family

ID=11156312

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19900203496 Withdrawn EP0441006A3 (en) 1990-02-06 1990-12-24 Tool for dressing machines for stone material or the like

Country Status (2)

Country Link
EP (1) EP0441006A3 (de)
IT (1) IT1238478B (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4401002A1 (de) * 1994-01-14 1995-07-20 Rsb Betontrenntechnik Gmbh Fräsvorrichtung
DE19837288A1 (de) * 1998-08-18 2000-02-24 Rsb Betontrenntechnik Gmbh Fräsvorrichtung zum Bearbeiten von Betonflächen und Fräsverfahren hierzu

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB129138A (en) * 1918-07-17 1919-07-10 Vickers Ltd Improvements in or relating to Milling Cutters.
US1965384A (en) * 1930-02-10 1934-07-03 Peter S Legge Stone cutting tool
US2155889A (en) * 1937-11-09 1939-04-25 Earl J Branson Road surfacing device
CH236811A (de) * 1943-11-13 1945-03-15 Beerli Fridolin Schneidwerkzeug.
US3132637A (en) * 1960-06-27 1964-05-12 Hinse Franz Apparatus for treatment of building blocks

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4401002A1 (de) * 1994-01-14 1995-07-20 Rsb Betontrenntechnik Gmbh Fräsvorrichtung
DE19837288A1 (de) * 1998-08-18 2000-02-24 Rsb Betontrenntechnik Gmbh Fräsvorrichtung zum Bearbeiten von Betonflächen und Fräsverfahren hierzu

Also Published As

Publication number Publication date
EP0441006A3 (en) 1991-10-16
IT1238478B (it) 1993-08-18
IT9019273A0 (it) 1990-02-06
IT9019273A1 (it) 1991-08-07

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