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JP2004322276A - Diamond dresser - Google Patents

Diamond dresser Download PDF

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Publication number
JP2004322276A
JP2004322276A JP2003123086A JP2003123086A JP2004322276A JP 2004322276 A JP2004322276 A JP 2004322276A JP 2003123086 A JP2003123086 A JP 2003123086A JP 2003123086 A JP2003123086 A JP 2003123086A JP 2004322276 A JP2004322276 A JP 2004322276A
Authority
JP
Japan
Prior art keywords
diamond
dress
dresser
tip
joined
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.)
Pending
Application number
JP2003123086A
Other languages
Japanese (ja)
Inventor
Hidetsugu Morita
英嗣 森田
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.)
KYOTO DIAMOND KOGYO KK
Original Assignee
KYOTO DIAMOND KOGYO KK
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 KYOTO DIAMOND KOGYO KK filed Critical KYOTO DIAMOND KOGYO KK
Priority to JP2003123086A priority Critical patent/JP2004322276A/en
Publication of JP2004322276A publication Critical patent/JP2004322276A/en
Pending legal-status Critical Current

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Abstract

<P>PROBLEM TO BE SOLVED: To provide a diamond dresser causing no shape change in the tip without generating a large crack and a chip even if abrasion makes progress. <P>SOLUTION: This dresser is characterized in that a dress tip 4 is formed by joining a longitudinally long one surface of diamond 1 composed of a diamond polycrystalline substance having no metallic binder phase of a square column shape and a metallic dress tip base material 2; the longitudinally long direction of the diamond 1 on the opposite side of a contact plane is set as the dress work side 3; and this dress tip 4 is joined to a shank 5. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

【0001】
【発明の属する技術分野】この発明は研削盤に付属する、砥石のドレス(目詰り除去)やツルーイング(振れ取り)を主目的にするダイヤモンドドレッサーに関するものである。
【0002】
【従来の技術】
従来のドレッサーは図4に示す天然ダイヤモンドの頂点を使った単石ドレッサーがよく用いられている。また柱状ダイヤモンドを利用してのドレッサーとしてはたとえば特許第3035486号、特開平7−24729号、特開平8−243919号、、特開平8−229818号および特開2001−246562号では図7の矢印で示す磨耗方向に平行にダイヤモンドを複数本並べる構造が提案されている。
【0003】
【発明が解決しようとしている課題】
図4で示した従来の天然ダイヤモンドを使った単石ドレッサー、は天然ダイヤモンドの8面体(図5)や12面体(図6)の頂点をドレス作業点として使用しるため、磨耗が始まると、頂点は面になり、鋭利な部分を失うため、切れ味が鈍化する。また天然のダイヤモンドを使うため、品質の安定が一定でなく性能が不安定であり、価格も輸入品につき市況の影響を受けやすく、高価であり変動も大きい。このことを改善するために、図7で示した提案のドレッサーでは、性能の安定と長寿命が得られるが、単結晶ダイヤモンドを利用するため、急激な衝撃や熱変動時に、単結晶ダイヤモンドに割れやひびが入り脱落や折損を起こし、結果として安定を欠くこととなる。また単結晶ダイヤモンドを複数使用しているため、高価である。本発明は以上のような問題を解決するためになされたものである。
【0004】
【課題を解決するための手段】
請求項1記載のドレッサー(以下本発明1という)は角柱状の金属バインダー相の無いダイヤモンド多結晶体からなるダイヤモンド1の縦長の一面と、金属製のドレスチップ母材2を接合してドレスチップ4とし、接合面と反対側のダイヤモンド1の縦長方向をドレス作業側3とし、このドレスチップ4をシャンク5に接合していることを特徴とする。
【0005】
請求項2記載のドレッサー(以下本発明2という)は、上記ドレスチップ母材2の一端に縦長のV字状の溝6もしくはコの字上の溝7を設けてその溝に角柱状の金属バインダー相の無いダイヤモンド多結晶体からなるダイヤモンド1の2面または3面が接合されていることを特徴とする。
【0006】
本発明で言う角柱状金属バインダー相の無いダイヤモンド多結晶体とは、たとえばCVD(化学的蒸着法)で作られたダイヤモンドのことである。
【0007】
本発明で言う角柱状とはドレッサーの機能や寿命を延ばすためのものであり、角柱状であることが必要である。角柱状としては、3角柱、4角柱、6角柱など挙げられるが、4角柱が最も望ましい。本発明ではこの角柱状ダイヤモンドの縦長方向をドレス作業側となるように用いる。
【0008】
本発明で言う金属製のドレスチップ母材は、たとえば、超硬合金や金属モリブデンまたはタングステンを主成分とした高比重合金(ヘビーメタル)または粉末金属により焼結された金属が挙げられる。
【0009】
【発明の実施の形態】
以下、本発明の実施の形態の一例を図8を用いて説明する。
CVD(化学的蒸着)法で作られた角柱状の縦横1mm、長さ4mmの正四角柱状のダイヤモンド1を超硬合金製のV字の溝を設けたドレスチップ母材2に、正四角柱の2面にて接合しドレスチップ4を作り、径11mmの鋼製のシャンク5にロー付けしてダイヤモンドドレッサー100を製作した。この場合正四角柱の一稜線がドレス作業側となる。
そしてダイヤモンド1は先端90度の角度になるように研磨した。
図9に示すようにこのダイヤモンドドレッサー100を円筒研削盤のドレッサー支持部に搭載し、砥石6(WA80I8VF)大きさ(外径405mm、幅38mm)を分速1800mで切込み0.100mmにて15度のダウンカットの角度7を与えてドレスした。ドレスの結果は目詰まりをよく落とし、縦長4mmの間先端の形状が変わることなく使用でき長寿命であった。
また、CVD法のダイヤモンドは微細破壊のみの摩耗で推移し、割れや欠けなく使用できた。
【0010】
【発明の効果】
本発明1は角柱状の金属バインダー相の無い多結晶体ダイヤモンドが用いられており、磨耗が促進しても、微細なダイヤモンドの結晶一粒ごと破砕するため、大きな割れや欠けは現れない。また、ドレス作用側は砥石と角度を持って接触させるため、磨耗が促進しても先端の形状は変化しない。従って先端形状が維持できる。本発明1の効果の状況を図10にて説明する。図10はドレッサー100の先端部の部分の拡大図である。目詰り除去するために、ドレス作業側が磨耗すれば小片8が磨耗してゆく。小片8が磨耗脱落した後の形状9は先端部10を常に鋭角のままの形状を保ち、決して変化しない。従って、長時間安定したドレス作業が可能である。またダイヤモンドの縦長方向を作業側として使えるので、先端の形状を変化させずに縦長の4mm分の寿命を使え、長い寿命を達成した。使用しているダイヤモンドは一本のため価格は安価である。
【0011】
本発明2は、上述の本発明1の効果が全て発現すると共に、ダイヤモンド1が2面または3面で接合されておるので、接合強度が強く耐久性に優れている。
【図面の簡単な説明】
【図1】本発明1の実施形態の一例を示す説明図
【図2】本発明2の実施形態の一例を示す部分拡大図
【図3】本発明2の実施形態の一例を示す部分拡大図
【図4】従来のダイヤモンドドレッサーを示す説明図
【図5】従来のダイヤモンドドレッサーに用いられているダイヤモンドの形状を示す説明図
【図6】従来のダイヤモンドドレッサーに用いられているダイヤモンドの形状を示す説明図
【図7】従来のダイヤモンドドレッサーを示す説明図
【図8】本発明1の実施形態の一例を示す説明図
【図9】本発明1を実際の研削盤に使用している状態を示す説明図
【図10】本発明2を使用している状態を示す部分拡大図
[0001]
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a diamond dresser attached to a grinding machine and mainly for dressing (clogging removal) and truing (runout) of a grindstone.
[0002]
[Prior art]
As a conventional dresser, a single stone dresser using the top of natural diamond shown in FIG. 4 is often used. As a dresser using columnar diamond, for example, Japanese Patent No. 3035486, Japanese Patent Application Laid-Open No. Hei 7-24729, Japanese Patent Application Laid-Open No. 8-243919, Japanese Patent Application Laid-Open No. 8-229818, and Japanese Patent Application Laid-Open No. 2001-246562 show arrows in FIG. A structure has been proposed in which a plurality of diamonds are arranged in parallel in the wear direction indicated by.
[0003]
[Problems to be solved by the invention]
The conventional single-stone dresser using natural diamond shown in FIG. 4 uses the vertices of the octahedron (FIG. 5) or dodecahedron (FIG. 6) of natural diamond as a dressing work point. The vertex becomes a surface and loses sharp parts, so the sharpness becomes dull. In addition, since natural diamond is used, the quality is not stable and the performance is unstable, and the price of imported products is easily affected by market conditions. In order to improve this, the proposed dresser shown in FIG. 7 provides stable performance and long life. However, since single-crystal diamond is used, it breaks into single-crystal diamond during sudden impact or thermal fluctuation. Cracks may occur and fall off or break, resulting in a lack of stability. Moreover, it is expensive because a plurality of single crystal diamonds are used. The present invention has been made to solve the above problems.
[0004]
[Means for Solving the Problems]
The dresser according to claim 1 (hereinafter referred to as “the present invention 1”) is formed by joining one longitudinal surface of a diamond 1 made of a polycrystalline diamond having no prismatic metal binder phase to a metal dress tip base material 2. 4, the longitudinal direction of the diamond 1 on the opposite side to the joining surface is the dressing work side 3, and the dress chip 4 is joined to the shank 5.
[0005]
A dresser according to claim 2 (hereinafter referred to as the present invention 2) is provided with a vertically long V-shaped groove 6 or a U-shaped groove 7 at one end of the dress chip base material 2 and a rectangular column-shaped metal in the groove. It is characterized in that two or three faces of diamond 1 made of polycrystalline diamond having no binder phase are joined.
[0006]
The polycrystalline diamond having no prismatic metal binder phase as referred to in the present invention is, for example, diamond produced by CVD (chemical vapor deposition).
[0007]
The prismatic shape referred to in the present invention is for extending the function and life of the dresser, and it is necessary that the prismatic shape. Examples of the prism shape include a triangular prism, a quadrangular prism, and a hexagonal prism, and a quadrangular prism is most preferable. In the present invention, the longitudinal direction of the prismatic diamond is used so as to be on the dress work side.
[0008]
The metal dress chip base material referred to in the present invention includes, for example, a metal sintered with a high ratio heavy metal (heavy metal) or a powdered metal mainly composed of cemented carbide, metal molybdenum or tungsten.
[0009]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, an example of an embodiment of the present invention will be described with reference to FIG.
A square pillar-shaped diamond 1 having a length and width of 1 mm and a length of 4 mm formed by a CVD (Chemical Vapor Deposition) method is formed on a dress chip base material 2 provided with a V-shaped groove made of cemented carbide. A dress tip 4 was formed by bonding on two surfaces, and was brazed to a steel shank 5 having a diameter of 11 mm to produce a diamond dresser 100. In this case, the edge of the square pillar is the dress work side.
Then, the diamond 1 was polished so as to have a tip angle of 90 degrees.
As shown in FIG. 9, the diamond dresser 100 is mounted on a dresser support of a cylindrical grinder, and a grindstone 6 (WA80I8VF) size (outer diameter 405 mm, width 38 mm) is cut at 1800 m / min. Was given a downcut angle of 7. The result of the dressing was that the clogging was well removed, and that the tip could be used without changing the shape of the tip for a length of 4 mm, and had a long life.
Further, the diamond of the CVD method was changed by abrasion with only microdestruction, and could be used without cracking or chipping.
[0010]
【The invention's effect】
In the present invention 1, a polycrystalline diamond having no prismatic metal binder phase is used, and even if abrasion is promoted, each fine diamond crystal is crushed, so that large cracks or chips do not appear. Further, since the dressing side is brought into contact with the grindstone at an angle, the shape of the tip does not change even if wear is promoted. Therefore, the tip shape can be maintained. The state of the effect of the present invention 1 will be described with reference to FIG. FIG. 10 is an enlarged view of a tip portion of the dresser 100. In order to remove the clogging, if the dressing work side wears, the small piece 8 wears. The shape 9 after the small pieces 8 have been worn away keeps the shape of the tip 10 always at an acute angle and never changes. Therefore, the dressing operation can be stably performed for a long time. In addition, since the vertical direction of the diamond can be used as the working side, a long life of 4 mm can be used without changing the shape of the tip, and a long life is achieved. The price is low because only one diamond is used.
[0011]
The second aspect of the invention exhibits all the effects of the first aspect of the invention and also has a high bonding strength and excellent durability because the diamond 1 is bonded on two or three sides.
[Brief description of the drawings]
FIG. 1 is an explanatory view showing an example of an embodiment of the present invention 1. FIG. 2 is a partially enlarged view showing an example of an embodiment of the present invention 2. FIG. 3 is a partially enlarged view showing an example of an embodiment of the present invention 2. FIG. 4 is an explanatory diagram showing a conventional diamond dresser. FIG. 5 is an explanatory diagram showing the shape of diamond used in a conventional diamond dresser. FIG. 6 is a diagram showing the shape of diamond used in a conventional diamond dresser. FIG. 7 is an explanatory view showing a conventional diamond dresser. FIG. 8 is an explanatory view showing an example of an embodiment of the present invention 1. FIG. 9 is a view showing a state where the present invention 1 is used in an actual grinding machine. FIG. 10 is a partially enlarged view showing a state where the present invention 2 is used.

Claims (2)

角柱状の金属バインダー相の無いダイヤモンド多結晶体からなるダイヤモンド(1)の縦長の1面と、金属製のドレスチップ母材(2)を接合してドレスチップ(4)とし、接合面と反対側のダイヤモンド(1)の縦長方向をドレス作業側(3)とし、このドレスチップ(4)をシャンク(5)に接合していることを特徴とするドレッサー。One longitudinal surface of diamond (1) made of a polycrystalline diamond having no prismatic metal binder phase and a metal dress tip base material (2) are joined to form a dress tip (4), which is opposite to the joining surface. A dresser characterized in that the longitudinal direction of the diamond (1) on the side is the dressing work side (3), and the dress tip (4) is joined to the shank (5). 上記ドレスチップ母材(2)の一端に縦長のV字状の溝(6)もしくはコの字上の溝(7)を設けてその溝に角柱状の金属バインダー相の無いダイヤモンド多結晶体からなるダイヤモンド(1)の2面または3面が接合されていることを特徴とする請求項1記載のドレッサー。A vertically long V-shaped groove (6) or a U-shaped groove (7) is provided at one end of the dress chip base material (2), and the groove is made of a diamond-shaped polycrystalline body having no prismatic metal binder phase. The dresser according to claim 1, wherein two or three surfaces of the resulting diamond (1) are joined.
JP2003123086A 2003-04-28 2003-04-28 Diamond dresser Pending JP2004322276A (en)

Priority Applications (1)

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Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2003123086A JP2004322276A (en) 2003-04-28 2003-04-28 Diamond dresser

Publications (1)

Publication Number Publication Date
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Country Status (1)

Country Link
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104136171A (en) * 2011-12-16 2014-11-05 六号元素技术有限公司 Method of dressing an abrasive wheel using a polycrystalline cvd synthetic diamond dresser and method of fabricating the same

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104136171A (en) * 2011-12-16 2014-11-05 六号元素技术有限公司 Method of dressing an abrasive wheel using a polycrystalline cvd synthetic diamond dresser and method of fabricating the same
JP2015504786A (en) * 2011-12-16 2015-02-16 エレメント シックス テクノロジーズ リミテッド Polishing wheel dressing method using polycrystalline CVD synthetic diamond wheel dresser and manufacturing method of polycrystalline CVD synthetic diamond wheel dresser

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