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EP1878536A1 - Outil de dressage pour une meule - Google Patents

Outil de dressage pour une meule Download PDF

Info

Publication number
EP1878536A1
EP1878536A1 EP07112022A EP07112022A EP1878536A1 EP 1878536 A1 EP1878536 A1 EP 1878536A1 EP 07112022 A EP07112022 A EP 07112022A EP 07112022 A EP07112022 A EP 07112022A EP 1878536 A1 EP1878536 A1 EP 1878536A1
Authority
EP
European Patent Office
Prior art keywords
grindstone
yoke
universal support
holder
truing
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.)
Granted
Application number
EP07112022A
Other languages
German (de)
English (en)
Other versions
EP1878536B1 (fr
Inventor
Torgny Jansson
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.)
TJ Utveckling AB
Original Assignee
TJ Utveckling AB
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 TJ Utveckling AB filed Critical TJ Utveckling AB
Publication of EP1878536A1 publication Critical patent/EP1878536A1/fr
Application granted granted Critical
Publication of EP1878536B1 publication Critical patent/EP1878536B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • B24B53/00—Devices or means for dressing or conditioning abrasive surfaces
    • B24B53/005—Positioning devices for conditioning tools
    • 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
    • B24B53/00—Devices or means for dressing or conditioning abrasive surfaces
    • B24B53/04—Devices or means for dressing or conditioning abrasive surfaces of cylindrical or conical surfaces on abrasive tools or wheels
    • B24B53/047—Devices or means for dressing or conditioning abrasive surfaces of cylindrical or conical surfaces on abrasive tools or wheels equipped with one or more diamonds
    • 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
    • B24B53/00—Devices or means for dressing or conditioning abrasive surfaces
    • B24B53/12—Dressing tools; Holders therefor

Definitions

  • the present invention relates to a truing tool for a grindstone, the tool being intended for attachment to a universal support of a grinding machine in parallel with the rotation axis of the grindstone and having - in a holder therefore - a cutting tip for truing engagement with the grindstone.
  • a presently used truing tool as defined in the first paragraph of the specification provides an acceptable truing result, but the result obtained depends at least partly on manual work of the operator, both with regard to the adjustment before truing and the truing itself.
  • a truing tool with simplified operation is according to the invention obtained in that the holder is movably connected to a yoke - to be attached to the universal support - by externally operated means on the yoke for its movement in relation to the yoke transversely of the grindstone.
  • the externally operated means comprises a threaded feeding rod, which is rotatably supported by the yoke and is in engagement with a threaded bore in the holder.
  • This feeding rod is provided with operating knobs at its ends outside the yoke.
  • the holder further has a transverse hole for its movable connection to the universal support.
  • the important advantage obtained is that the holder will be guided by two “axles”, namely the universal support and the feeding rod, which adds to the stability and accuracy of the tool.
  • the cutting depth for the cutting tip is set by fine adjusting the height of the universal support over the grindstone.
  • a rotatable grindstone 1 of a grinding machine has to be trued at intervals in order to be kept fit for its intended purpose of grinding for example woodcarving tools.
  • FIG. 1 A known truing tool for this purpose is illustrated in Fig 1.
  • the tool has a U-rod 2 to be slid on a universal support or cylindrical rod 3 attached on the grinding machine in parallel with the rotation axis of the grindstone 1.
  • the U-rod 2 can be attached to the universal support 3 by means of two lock screws 4.
  • a holder 5 which has a through hole for the universal support. At its forward end, the holder is provided with a cutting tip 6, whereas the opposite end can be held against the U-rod 2.
  • the cutting tip 6 consists of diamond grains embedded in a copper cylinder.
  • the grains are positioned like "raisins in a cake". During use, the soft copper will be worn, and the diamond grains will stick out as peaks on the surface. Worn grains will after a period of time be replaced by new ones. This design gives a long life to the tip 6.
  • the intended cutting depth of the tip 6 can be determined by the position of the U-rod 2 on the universal support 3. While the grindstone 1 is rotating, the holder 5 is held against the U-rod 2 and manually moved back and forth over the grindstone 1 for obtaining a smooth surface on the grindstone.
  • FIG. 2 A truing tool according to the invention is shown in Figs 2-4.
  • the main constituent of the inventive truing tool is a plate-shaped yoke 10 with side edges having holes for mounting the tool on the universal support 3 of the grinding machine above the grindstone 1.
  • the yoke 10 is provided with a fastening screw 11 at one of the side edges for its locking to the universal support 3.
  • the other side edge has two protrusions 10' for guiding the yoke 10 in relation to a threaded leg 3' of the universal support 3.
  • the universal support 3 may be raised or lowered with high precision by means of an adjustment nut 3", whereupon the locking screws 16 are again locked.
  • the adjustment nut 3" is preferably provided with measurement indexes.
  • a holder 12 with a cutting tip 13 of the same type as has been described above and with a through hole for sliding onto the universal support 3 is arranged under the yoke 10 between its side edges.
  • the threaded rod 14 extends through a threaded bore in the holder 12 and/or the cutting tip 13 with the result that the holder 12 with the cutting tip 13 may be transferred sideways sliding under the yoke by turning the knobs 15 (as is illustrated in Fig 4) .
  • the threaded feeding rod 14 with its operating knobs 15 may collectively be called “externally operated means", indicating that other equivalent means for obtaining the same result are feasible.
  • the universal support 3 is set at a height for allowing the truing tool to be freely slid in position with the protrusions 10' engaging the leg 3' of the universal support 3.
  • the yoke 10 is locked in position by the fastening screw 11.
  • the machine is started, and the universal support 3 is lowered by means of the adjustment nut 3", until the cutting tip 13 touches the highest spot on the grindstone 1.
  • the cutting tip 13 is transferred outside the grindstone 1 by the operating knobs 15.
  • the desired cutting depth for the cutting tip 13 is set by means of the adjustment nut 3".
  • the maximum cutting depth may be 0.8 mm.
  • the machine is again started, and the cutting tip 13 is transversely fed over the rotating grindstone 1 in both directions by means of the operating knobs 15. It is suggested to use 1.5-2 minutes for moving across the grindstone 1.
  • the transverse feeding in the new tool occurs by turning operating knobs 15, whereas a manual handling of the tool holder 5 is necessary in the old tool.
  • the cutting depth is set with high precision by means of the adjustment nut 3"
  • the cutting depth in the old tool is set manually by means of the position of the U-rod 2 on the universal support 3.
  • the new tool is in one piece and may easily be mounted, whereas the old tool is in two pieces.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Grinding-Machine Dressing And Accessory Apparatuses (AREA)
  • Materials For Medical Uses (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
EP07112022A 2006-07-11 2007-07-09 Outil de dressage pour une meule Active EP1878536B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE0601530A SE532460C2 (sv) 2006-07-11 2006-07-11 Svarvverktyg för en slipsten

Publications (2)

Publication Number Publication Date
EP1878536A1 true EP1878536A1 (fr) 2008-01-16
EP1878536B1 EP1878536B1 (fr) 2010-08-18

Family

ID=38596001

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07112022A Active EP1878536B1 (fr) 2006-07-11 2007-07-09 Outil de dressage pour une meule

Country Status (5)

Country Link
US (2) US20080020685A1 (fr)
EP (1) EP1878536B1 (fr)
AT (1) ATE477886T1 (fr)
DE (1) DE602007008506D1 (fr)
SE (1) SE532460C2 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103240674A (zh) * 2013-05-13 2013-08-14 镇江维纳特气门有限公司 一种无心磨床
CN103240673A (zh) * 2013-05-13 2013-08-14 镇江维纳特气门有限公司 一种无心磨床的砂轮修整机构

Citations (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US456954A (en) * 1891-08-04 Grindstone-dresser
US1867939A (en) * 1931-01-03 1932-07-19 Davenport John Adrian Grinding wheel dresser
US2401594A (en) * 1944-05-13 1946-06-04 Frank C Wallace Grinder wheel dressing attachment
US2451235A (en) * 1947-12-10 1948-10-12 Milo J Nagy Device for resurfacing grinding wheels
US3052227A (en) * 1958-02-06 1962-09-04 Wernicke & Co Kg Dressing device for grinding discs, especially for use in connection with the grinding of spectacle glasses
US3583382A (en) * 1969-11-17 1971-06-08 Crockett Machine Products Co Portable apparatus for dressing grinding wheels
US3682153A (en) * 1970-09-11 1972-08-08 Andrew Weining Wheel dressing fixture
US3695249A (en) * 1970-08-12 1972-10-03 Henry F Swenson Grinding wheel dressing apparatus
DE3232623A1 (de) * 1982-09-02 1984-06-07 Ulli 2807 Achim Künne Vorrichtung zum abrichten von schleifscheiben
DE8701910U1 (de) * 1987-02-09 1987-05-27 Kreitl, Detlef, 8046 Garching Schleifscheiben-Abrichtgerät
JPS62287973A (ja) * 1986-06-05 1987-12-14 Nikko Kikai Kk 平面研削盤
JP2000246635A (ja) * 1999-02-24 2000-09-12 Toyota Motor Corp 砥石の再生方法およびその装置
US6116989A (en) * 1998-01-16 2000-09-12 Balastik; George Jiri Apparatus for dressing a grinding disc
JP2002028863A (ja) * 2000-07-18 2002-01-29 Okamoto Machine Tool Works Ltd 砥石の上下ドレッシング方法および研削装置
DE202006010365U1 (de) * 2006-07-04 2007-01-04 Bartels, Bernd Fixe Schleifscheiben - Abrichtvorrichtung für Schleifböcke

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1596701A (en) * 1922-05-15 1926-08-17 Wilmarth & Morman Company Truing device for grinding wheels
US1979536A (en) * 1929-02-28 1934-11-06 Barbercolman Company Truing device for grinding wheels
US1834179A (en) * 1929-04-03 1931-12-01 Roland P Place Co Mechanism for truing and dressing grinding wheels
US2220647A (en) * 1937-11-23 1940-11-05 Harley Stanley Jaffa Means for shaping and truing the operating surfaces of grinding wheels used for form grinding
US2190132A (en) * 1938-07-02 1940-02-13 Norton Co Grinding wheel truing apparatus
US2178842A (en) * 1938-09-30 1939-11-07 Norton Co Grinding wheel truing apparatus
US2309924A (en) * 1941-03-29 1943-02-02 Clyde E Walling Universal radius truing fixture for grinding machines
US2708432A (en) * 1949-07-06 1955-05-17 Saul A Eller Wheel truing device
US2647504A (en) * 1950-09-08 1953-08-04 Norton Co Grinding wheel truing apparatus
US2644277A (en) * 1951-04-19 1953-07-07 Clarence K Chatten Machine for preparing test samples of rubber and the like material
US2638886A (en) * 1951-09-07 1953-05-19 Cecil D Chandler Grinding wheel dresser
US3692011A (en) * 1971-01-18 1972-09-19 Albert L Reese Wheel refacer
JPS6033006A (ja) * 1983-08-02 1985-02-20 Toyoda Mach Works Ltd 円筒型砥石車のツル−イング装置
JP5034951B2 (ja) * 2005-12-22 2012-09-26 株式会社ジェイテクト 砥石修正装置
JP5018058B2 (ja) * 2005-12-28 2012-09-05 株式会社ジェイテクト 砥石車のツルーイング装置及びツルーイング方法
KR20090063804A (ko) * 2007-12-14 2009-06-18 주식회사 실트론 연삭 휠 트루잉 공구 및 그 제작방법, 이를 이용한 트루잉장치, 연삭 휠의 제작방법, 및 웨이퍼 에지 연삭장치

Patent Citations (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US456954A (en) * 1891-08-04 Grindstone-dresser
US1867939A (en) * 1931-01-03 1932-07-19 Davenport John Adrian Grinding wheel dresser
US2401594A (en) * 1944-05-13 1946-06-04 Frank C Wallace Grinder wheel dressing attachment
US2451235A (en) * 1947-12-10 1948-10-12 Milo J Nagy Device for resurfacing grinding wheels
US3052227A (en) * 1958-02-06 1962-09-04 Wernicke & Co Kg Dressing device for grinding discs, especially for use in connection with the grinding of spectacle glasses
US3583382A (en) * 1969-11-17 1971-06-08 Crockett Machine Products Co Portable apparatus for dressing grinding wheels
US3695249A (en) * 1970-08-12 1972-10-03 Henry F Swenson Grinding wheel dressing apparatus
US3682153A (en) * 1970-09-11 1972-08-08 Andrew Weining Wheel dressing fixture
DE3232623A1 (de) * 1982-09-02 1984-06-07 Ulli 2807 Achim Künne Vorrichtung zum abrichten von schleifscheiben
JPS62287973A (ja) * 1986-06-05 1987-12-14 Nikko Kikai Kk 平面研削盤
DE8701910U1 (de) * 1987-02-09 1987-05-27 Kreitl, Detlef, 8046 Garching Schleifscheiben-Abrichtgerät
US6116989A (en) * 1998-01-16 2000-09-12 Balastik; George Jiri Apparatus for dressing a grinding disc
JP2000246635A (ja) * 1999-02-24 2000-09-12 Toyota Motor Corp 砥石の再生方法およびその装置
JP2002028863A (ja) * 2000-07-18 2002-01-29 Okamoto Machine Tool Works Ltd 砥石の上下ドレッシング方法および研削装置
DE202006010365U1 (de) * 2006-07-04 2007-01-04 Bartels, Bernd Fixe Schleifscheiben - Abrichtvorrichtung für Schleifböcke

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103240674A (zh) * 2013-05-13 2013-08-14 镇江维纳特气门有限公司 一种无心磨床
CN103240673A (zh) * 2013-05-13 2013-08-14 镇江维纳特气门有限公司 一种无心磨床的砂轮修整机构

Also Published As

Publication number Publication date
DE602007008506D1 (de) 2010-09-30
ATE477886T1 (de) 2010-09-15
EP1878536B1 (fr) 2010-08-18
SE532460C2 (sv) 2010-01-26
US20080020685A1 (en) 2008-01-24
SE0601530L (sv) 2008-01-12
USD625743S1 (en) 2010-10-19

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