JP2003266319A - Grinding wheel with spindle - Google Patents
Grinding wheel with spindleInfo
- Publication number
- JP2003266319A JP2003266319A JP2002074274A JP2002074274A JP2003266319A JP 2003266319 A JP2003266319 A JP 2003266319A JP 2002074274 A JP2002074274 A JP 2002074274A JP 2002074274 A JP2002074274 A JP 2002074274A JP 2003266319 A JP2003266319 A JP 2003266319A
- Authority
- JP
- Japan
- Prior art keywords
- base metal
- abrasive grain
- grain layer
- grindstone
- abrasive
- 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
Links
Landscapes
- Polishing Bodies And Polishing Tools (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、鉄系鋳物製品の仕
上げ加工に使用される軸付き砥石に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a grindstone with a shaft used for finishing an iron casting product.
【０００２】[0002]
【従来の技術】従来、鋳鉄鋳物、可鍛鋳鉄鋳物、鋼鋳物
などの鉄系鋳物の仕上げ加工に、電着法またはろう付け
法によりダイヤモンド砥粒を台金に固着した軸付き砥石
が使用されている。たとえば特開平６−３３９８６４号
公報には、回転電動機に取り付ける軸付き砥石の台金が
鋼よりなるブランク部とこのブランク部を一体化して支
持するシャンク部とを有してなる軸付き砥石において、
ブランク部を軟鋼よりなる本体とこの本体の外周に電着
したダイヤモンド砥粒とで構成し、シャンク部を超硬合
金とした電着式軸付き砥石が記載されている。2. Description of the Related Art Conventionally, a shaft-mounted grindstone having diamond abrasive grains fixed to a base metal by an electrodeposition method or a brazing method has been used for finishing of iron-based castings such as cast iron castings, malleable cast iron castings and steel castings. ing. For example, Japanese Patent Laid-Open No. 6-339864 discloses a whetstone with a shaft in which a base of a whetstone with a shaft attached to a rotary motor has a blank part made of steel and a shank part integrally supporting the blank part.
An electrodeposited whetstone with a shaft is described, in which the blank portion is composed of a main body made of mild steel and diamond abrasive grains electrodeposited on the outer periphery of the main body, and the shank portion is made of cemented carbide.
【０００３】この電着式軸付き砥石によれば、シャンク
部とブランク部は金属ろうによって強固に一体化されて
いるので、ブランク部とシャンク部がゆるむことなく安
全な加工作業が可能であり、また、超硬質砥粒を用いて
いるので研削性に優れている、とされている。According to this electrodeposition type grindstone with a shaft, the shank portion and the blank portion are firmly integrated by the metal brazing, so that the blank portion and the shank portion can be safely processed without loosening, Further, since it uses ultra-hard abrasive grains, it is said to have excellent grindability.
【０００４】しかし、一般に電着法によって砥粒を固着
した砥粒層は、砥粒の突き出しが小さいので早期に目詰
まりが生じやすく、たとえば金型，機械部品用の鋳鉄鋳
物の溝加工の場合、溝底面の面粗さやコーナー曲面部の
加工精度が劣化する、という問題がある。また、砥粒の
結合力が低いので砥粒が脱落しやすく、コーナー部の加
工精度を維持できず、このため砥石寿命が短くなる、と
いう問題がある。However, in general, the abrasive grain layer to which the abrasive grains are fixed by the electrodeposition method has a small protrusion of the abrasive grains, so that clogging is likely to occur at an early stage. For example, in the case of grooving cast iron castings for dies and machine parts. However, there is a problem in that the surface roughness of the groove bottom surface and the processing accuracy of the curved surface of the corner deteriorate. Further, since the bonding force of the abrasive grains is low, the abrasive grains are likely to fall off, the machining accuracy of the corner portion cannot be maintained, and thus the life of the grindstone is shortened.
【０００５】このような問題に対して、ろう付け法によ
って砥粒を台金に固着した砥石が提案されている。たと
えば特開２０００−３２６２３４号公報には、平均粒径
１００〜２０００μｍの超砥粒をろう材を主成分とする
結合材により台金表面に単層固着した砥石が記載されて
いる。この砥石の製造に用いられるろう材は、Ａｇ−Ｃ
ｕ−Ｔｉ系活性化ろう材、Ｎｉ−Ｃｒ系ろう材、Ｃｏ−
Ｎｉ−Ｃｒ系ろう材である。To solve such a problem, a grindstone in which abrasive grains are fixed to a base metal by a brazing method has been proposed. For example, Japanese Unexamined Patent Application Publication No. 2000-326234 describes a grindstone in which superabrasive grains having an average particle size of 100 to 2000 μm are fixed to the surface of a base metal by a single layer with a binder containing a brazing material as a main component. The brazing material used for manufacturing this grindstone is Ag-C.
u-Ti based activated brazing material, Ni-Cr based brazing material, Co-
It is a Ni-Cr brazing material.
【０００６】このろう付け式砥石によれば、砥粒間隔を
あけて砥粒を固着し、チップポケットを形成することが
できるので、目詰まりが生じにくく、切れ味が向上す
る。また、電着式砥石に比べて砥粒の脱落が少なく、各
種鋳物のバリ取り加工に優れた性能を発揮する。According to this brazing type grindstone, since the abrasive grains can be fixed at intervals of the abrasive grains to form the chip pocket, clogging is less likely to occur and sharpness is improved. In addition, the abrasive grains are less likely to fall off than the electrodeposition type grindstone, and it exhibits excellent performance in deburring various castings.
【０００７】[0007]
【発明が解決しようとする課題】ところで、前記した金
型，機械部品用の鋳鉄鋳物の溝加工において、軸付き砥
石は溝の側面と底面を同時に高精度に加工するのに使用
される。この溝加工では、溝の底面は加工後の面粗さと
してＲａ３μｍ以内程度の面粗さが要求され、コーナー
曲面部の加工精度として０．２ｍｍ以内程度の精度が要
求される。By the way, in the groove machining of cast iron castings for molds and machine parts described above, a grindstone with a shaft is used to machine the side surface and the bottom surface of the groove simultaneously with high precision. In this groove processing, the bottom surface of the groove is required to have a surface roughness Ra of about 3 μm or less after processing, and an accuracy of about 0.2 mm or less as the processing accuracy of the curved corner portion.
【０００８】鋳鉄鋳物の溝加工において要求される前記
のような面粗さや加工精度を満足しかつ長寿命の砥石を
得るためには、砥粒層における砥粒の配列方向，間隔や
コーナー曲面部の加工精度向上のための特別な条件設定
が必要である。しかしながら、従来このような条件設定
について検討されたことはなく、不満足な加工精度や砥
石寿命のもとで砥石を使用していたのが実状である。前
記の特開２０００−３２６２３４号公報に記載の砥石
は、鋳物のバリ取り用の砥石であり、この砥石での砥粒
配列条件は溝加工用の砥粒層の砥粒のコーナー曲面部の
加工精度向上についての適正な条件を示唆するものでは
ない。In order to obtain a grindstone satisfying the above-described surface roughness and machining accuracy required for grooving a cast iron casting and having a long life, the arrangement direction of the abrasive grains in the abrasive grain layer, the interval, and the corner curved surface portion It is necessary to set special conditions to improve the processing accuracy of. However, such condition setting has not been studied so far, and it is the actual situation that the grindstone is used with unsatisfactory processing accuracy and grindstone life. The grindstone described in JP-A-2000-326234 is a grindstone for deburring a casting, and the condition for arranging the abrasive grains with this grindstone is to process the corner curved surface portion of the abrasive grains in the abrasive grain layer for grooving. It does not imply proper conditions for accuracy improvement.
【０００９】本発明が解決すべき課題は、軸付き砥石に
よる鉄系鋳物の仕上げ加工、とくに溝加工において面加
工およびコーナー加工の精度を向上させる砥粒層の好適
な構成条件を得ることにある。The problem to be solved by the present invention is to obtain suitable constitutional conditions of an abrasive grain layer for improving the accuracy of surface processing and corner processing in finishing of iron-based castings by a grindstone with a shaft, particularly in grooving. .
【００１０】[0010]
【課題を解決するための手段】本発明は、円筒状の台金
の外周面および端面にろう付け法により砥粒を一層固着
した軸付き砥石において、台金外周面の砥粒層の周方向
１箇所または複数箇所に砥粒層全長にわたる長さの耐摩
耗部材を配置するとともに、台金端面の砥粒層の外周寄
りに１個または複数個の耐摩耗部材を配置したことを特
徴とする。DISCLOSURE OF THE INVENTION The present invention relates to a grindstone with a shaft, in which abrasive grains are further fixed to the outer peripheral surface and the end surface of a cylindrical base metal by a brazing method, in the circumferential direction of the abrasive grain layer on the outer peripheral surface of the base metal. A wear resistant member having a length over the entire length of the abrasive grain layer is arranged at one or a plurality of positions, and one or a plurality of wear resistant members is arranged near the outer periphery of the abrasive grain layer on the end face of the base metal. .
【００１１】円筒状の台金の外周面および端面に砥粒層
を形成した軸付き砥石で溝加工を行う場合、台金の端面
および外周面の砥粒層で溝の底面と側面を同時に研削す
ることになるが、溝の底面と側面の境界部であるコーナ
ーの曲面部はとくに高い加工精度が要求される部分であ
る。本発明では、このコーナーの曲面部の加工精度を高
めるために、台金外周面の砥粒層の周方向１箇所または
複数箇所に砥粒層全長にわたる長さの耐摩耗部材を配置
するとともに、台金端面の砥粒層の外周寄りに１個また
は複数個の耐摩耗部材を配置する。When a groove is formed by a grindstone with a shaft having an abrasive grain layer formed on the outer peripheral surface and the end surface of a cylindrical base metal, the bottom surface and the side surface of the groove are simultaneously ground by the abrasive grain layer on the end surface and the outer peripheral surface of the base metal. However, the curved surface of the corner, which is the boundary between the bottom surface and the side surface of the groove, is a portion that requires particularly high processing accuracy. In the present invention, in order to improve the processing accuracy of the curved surface portion of the corner, the wear-resistant member having a length over the entire length of the abrasive grain layer is arranged at one or more circumferential positions of the abrasive grain layer on the outer peripheral surface of the base metal, One or a plurality of wear resistant members are arranged near the outer periphery of the abrasive grain layer on the end face of the base metal.
【００１２】前記耐摩耗部材としては、ダイヤモンド焼
結体、柱状ダイヤモンド、超硬合金のいずれかを用いる
ことができる。このような耐摩耗部材を台金外周面の砥
粒層および台金端面の砥粒層の周方向に少なくとも１個
配置することにより、砥粒の摩耗や破砕、脱落によって
生じる削り残し部を除去することができるので、コーナ
ーの曲面部の加工精度を高めることができ、砥石の寿命
も延長させることができる。As the wear resistant member, any one of diamond sintered body, columnar diamond and cemented carbide can be used. By disposing at least one such wear-resistant member in the circumferential direction of the abrasive grain layer on the outer peripheral surface of the base metal and the abrasive grain layer on the end surface of the base metal, the uncut portion caused by abrasion, crushing, or falling of the abrasive grains is removed. Therefore, it is possible to improve the processing accuracy of the curved surface portion of the corner and extend the life of the grindstone.
【００１３】ダイヤモンド焼結体、柱状ダイヤモンド、
超硬合金などの耐摩耗部材は、台金の端面上に非酸化性
雰囲気のもとでろう付けにより接着する。ここで、耐摩
耗部材と加工面との接触面積が加工面に占める割合が大
きい場合（加工面に対して１０％程度以上の場合）は、
耐摩耗部材にスリットを形成することが望ましい。スリ
ットを形成することにより、良好な切れ味を維持すると
ともに、切粉の排出や冷却水供給効率が良くなる。Diamond sintered body, columnar diamond,
A wear resistant member such as cemented carbide is adhered to the end surface of the base metal by brazing in a non-oxidizing atmosphere. Here, when the ratio of the contact area between the wear resistant member and the machined surface to the machined surface is large (when it is about 10% or more of the machined surface),
It is desirable to form slits in the wear resistant member. By forming the slits, good sharpness is maintained, and the efficiency of discharging chips and supplying cooling water is improved.
【００１４】[0014]
【発明の実施の形態】図１は本発明の実施形態における
軸付き砥石の全体斜視図であり、図２の（ａ）は図１の
台金端面の砥粒層の部分拡大図であり、（ｂ）は台金外
周面の砥粒層の部分拡大図である。1 is an overall perspective view of a grindstone with a shaft in an embodiment of the present invention, and FIG. 2 (a) is a partially enlarged view of an abrasive grain layer on an end face of a base metal of FIG. (B) is a partial enlarged view of the abrasive grain layer on the outer peripheral surface of the base metal.
【００１５】本実施形態の砥石１０は、金型，機械部品
に用いられる鋳鉄鋳物の溝加工用の軸付き砥石であり、
回転機械の駆動軸に取り付けられる軸１の先端側に円筒
状の台金２が連設されており、台金２の外周面３に砥粒
層４が、端面５に砥粒層６がそれぞれ形成されている。
台金２の外径は８ｍｍ、台金外周面３の砥粒層４の台金
長手方向の幅は１２ｍｍであり、台金端面５の砥粒層６
の幅は１．５ｍｍである。なお、台金端面５は０．８ｍ
ｍ幅の溝７により周方向に８区画に区分されている。The grindstone 10 of the present embodiment is a grindstone with a shaft for grooving cast iron castings used for molds and machine parts.
A cylindrical base metal 2 is continuously provided on the tip side of a shaft 1 attached to a drive shaft of a rotary machine. An abrasive grain layer 4 is provided on an outer peripheral surface 3 of the base metal 2 and an abrasive grain layer 6 is provided on an end face 5. Has been formed.
The outer diameter of the base metal 2 is 8 mm, the width of the abrasive grain layer 4 on the outer peripheral surface 3 of the base metal is 12 mm, and the abrasive grain layer 6 on the end face 5 of the base metal is 6.
Has a width of 1.5 mm. The base metal end surface 5 is 0.8 m.
It is divided into eight sections in the circumferential direction by the groove 7 of m width.
【００１６】台金外周面３の砥粒層４は、粒度＃８０／
１００のダイヤモンド砥粒Ｄを台金回転方向（図中の矢
印方向）に対して５〜３０度の傾斜角θをもたせて配設
し、ろう材Ｗにより台金外周面３に固着した後、ツルー
イングにより砥粒粒径の１０％相当分を除去したもので
ある。ここで、砥粒平均粒径をｄ、砥粒配列方向の砥粒
間隔をｆ、隣接する配列との列間隔をｈとしたとき、
０．２ｄ≦ｆ・ｓｉｎθ≦ｄおよびｄ≦ｈ≦４ｄの関係
を満たすように砥粒配列方向の砥粒間隔と隣接する配列
との列間隔を設定している。このような条件でダイヤモ
ンド砥粒Ｄを配列することにより、切れ味が良く、削り
残しのない研削ができる。The abrasive grain layer 4 on the outer peripheral surface 3 of the base metal has a grain size of # 80 /
After arranging 100 diamond abrasive grains D with an inclination angle θ of 5 to 30 degrees with respect to the direction of rotation of the base metal (the direction of the arrow in the figure), and fixing them to the base metal outer peripheral surface 3 with the brazing material W, The amount corresponding to 10% of the abrasive grain size was removed by truing. Here, when the average grain size of the abrasive grains is d, the abrasive grain interval in the abrasive grain arrangement direction is f, and the row interval between adjacent arrays is h,
The row interval between the abrasive grains in the abrasive grain array direction and the adjacent array is set so as to satisfy the relationship of 0.2d ≦ f · sin θ ≦ d and d ≦ h ≦ 4d. By arranging the diamond abrasive grains D under such conditions, it is possible to perform grinding with good sharpness and no uncut residue.
【００１７】台金端面５の砥粒層６も、台金外周面３の
砥粒層４に準じた配列でダイヤモンド砥粒Ｄを配設し、
ろう材Ｗにより固着した後、ツルーイングにより砥粒粒
径の１０％相当分を除去している。ここで本実施形態で
は、砥粒層６の外周寄りの部分に耐摩耗部材としてのダ
イヤモンド焼結体（ＰＣＤ）チップ８をろう材により固
着させている。ＰＣＤチップ８の寸法は幅１．０ｍｍ、
長さ１．５ｍｍ、高さ０．１６ｍｍである。このＰＣＤ
自体は、粒径１０μｍのダイヤモンド粒子を９０％以上
含む焼結体である。The abrasive grain layer 6 on the end face 5 of the base metal is also arranged with diamond abrasive grains D in an arrangement similar to the abrasive grain layer 4 on the outer peripheral face 3 of the base metal,
After fixing with the brazing material W, 10% of the abrasive grain size is removed by truing. Here, in this embodiment, a diamond sintered compact (PCD) chip 8 as a wear-resistant member is fixed to a portion of the abrasive grain layer 6 near the outer periphery by a brazing material. The width of the PCD chip 8 is 1.0 mm,
The length is 1.5 mm and the height is 0.16 mm. This PCD
As such, it is a sintered body containing 90% or more of diamond particles having a particle size of 10 μm.
【００１８】さらに、台金外周面３の砥粒層４の周方向
１箇所に、砥粒層４の台金長手方向全長にわたる長さの
ＰＣＤチップ９をろう材により固着させている。ＰＣＤ
チップ９はＰＣＤチップ８と同じ材質の焼結体であり、
寸法は幅１．５ｍｍ（端面部）〜１ｍｍ（基部）、厚さ
０．８ｍｍ、長さ１２．５ｍｍである。ＰＣＤチップ９
の幅は台金２の厚さより若干大きく、長さは砥粒層４の
全長より若干長く、図１に示すように、台金２の長手方
向に溝加工を施してＰＣＤチップ９を固着させたとき、
図２（ｂ）に示すように、ＰＣＤチップ９の台金端面側
は砥粒層６のダイヤモンド砥粒Ｄの先端高さと同程度以
上の突き出しとなり、台金外周面側も同様に砥粒層４の
ダイヤモンド砥粒Ｄ先端高さと同程度以上の突き出しと
なる。Further, a PCD chip 9 having a length extending over the entire length of the abrasive grain layer 4 in the longitudinal direction of the base metal is fixed to the outer peripheral surface 3 of the base metal at one location in the circumferential direction of the abrasive grain layer 4 by a brazing material. PCD
The chip 9 is a sintered body made of the same material as the PCD chip 8,
The dimensions are width 1.5 mm (end face) to 1 mm (base), thickness 0.8 mm, and length 12.5 mm. PCD chip 9
Is slightly larger than the thickness of the base metal 2 and its length is slightly longer than the entire length of the abrasive grain layer 4, and as shown in FIG. 1, a groove is formed in the longitudinal direction of the base metal 2 to fix the PCD chip 9 thereto. When
As shown in FIG. 2 (b), the base metal end surface side of the PCD chip 9 is protruded to the same extent or more as the tip height of the diamond abrasive grains D of the abrasive grain layer 6, and the base metal outer peripheral surface side is also similarly abrasive grain layer. The protrusion is equal to or more than the height of the tip of the diamond abrasive grain D of No. 4.
【００１９】このように台金外周面３および台金端面５
に耐摩耗部材としてのＰＣＤチップ９および８を配置し
たことにより、砥粒Ｄの摩耗や破砕、脱落によって生じ
る削り残し部を除去することができるので、加工対象で
ある溝のコーナー曲面部の加工精度を高めることがで
き、砥石の寿命も延長させることができる。Thus, the base metal outer peripheral surface 3 and the base metal end surface 5
By arranging the PCD chips 9 and 8 as wear-resistant members in the above, it is possible to remove the uncut portion caused by the abrasion, crushing, and falling of the abrasive grains D, and thus the processing of the curved surface of the corner of the groove to be processed. The accuracy can be improved and the life of the grindstone can be extended.
【００２０】なお、上記の実施形態においては、耐摩耗
材としてのＰＣＤチップ９を台金外周面に１個のみ配置
しているが、台金外周面の周方向の複数箇所に配置する
こともできる。また、砥粒はダイヤモンド砥粒を用いて
いるが、ｃＢＮ砥粒その他の砥粒を用いることができる
のはもちろんであり、砥粒の配列も実施形態の配列に限
定されるものではない。In the above embodiment, only one PCD chip 9 as the wear resistant material is arranged on the outer peripheral surface of the base metal, but it may be arranged at a plurality of positions on the outer peripheral surface of the base metal in the circumferential direction. . Further, although diamond abrasive grains are used as the abrasive grains, cBN abrasive grains and other abrasive grains can of course be used, and the arrangement of the abrasive grains is not limited to the arrangement of the embodiment.
【００２１】〔試験例〕図１に示した本発明の実施形態
の砥石１０（発明品）と、ＰＣＤチップの配置がないほ
かは砥石１０と同じ条件で砥粒層を形成した砥石（比較
品１）と、砥石１０の台金２と同じ台金に電着法により
ダイヤモンド砥粒を電着させた砥石（比較品２）を使用
して研削試験を行った。[Test Example] The grindstone 10 (invention product) of the embodiment of the present invention shown in FIG. 1 and a grindstone (comparative product) in which an abrasive grain layer was formed under the same conditions as the grindstone 10 except that the PCD chip was not arranged. A grinding test was performed using 1) and a grindstone (comparative product 2) in which diamond abrasive grains were electrodeposited by the electrodeposition method on the same base metal as the base metal 2 of the grindstone 10.
【００２２】試験条件
工作機械：大隈 立型フライス盤
回転速度：８０００ｍｉｎ−１
切り込み量：２０μｍ／ｐａｓｓ
送り速度：１５００ｍｍ／ｍｉｎ
被研削材：鋳鉄ＦＣ２５０
研削加工面：外径８ｍｍの４枚刃超硬エンドミルにより
鋳鉄鋳物に幅１０ｍｍ、深さ１０ｍｍの溝を形成し、こ
の溝の側面と底面を同時研削した。
加工面の面粗さが３μｍＲａを超えた時点またはコーナ
ー曲面部の半径が０．２ｍｍを超えた時点で砥石寿命と
判定した。Test conditions Machine tool: Okuma vertical milling machine Rotation speed: 8000 min -1 Depth of cut: 20 μm / pass Feed rate: 1500 mm / min Grinding material: Cast iron FC250 Grinding surface: 4-flute carbide end mill with outer diameter of 8 mm Thus, a groove having a width of 10 mm and a depth of 10 mm was formed on the cast iron casting, and the side surface and the bottom surface of the groove were simultaneously ground. The life of the grindstone was determined when the surface roughness of the machined surface exceeded 3 μmRa or when the radius of the corner curved surface portion exceeded 0.2 mm.
【００２３】試験結果を表１に示す。The test results are shown in Table 1.
【表１】 [Table 1]
【００２４】表１からわかるように、発明品の砥石は比
較品１，２の砥石に比べて、加工初期の面精度に優れ、
これを長期にわたって維持できた。これにより砥石寿命
が大幅に増大した。さらに切れ味にも良好な結果が得ら
れた。As can be seen from Table 1, the invention grindstones are superior to the grindstones of Comparative Products 1 and 2 in surface accuracy at the initial stage of machining,
This could be maintained for a long time. This has significantly increased the life of the grindstone. Further, good results were obtained for sharpness.
【００２５】[0025]
【発明の効果】（１）円筒状の台金の外周面および端面
に耐摩耗部材を配置することにより、砥粒の摩耗や破
砕、脱落によって生じる削り残し部を除去することがで
きるので、溝加工の場合のコーナーの曲面部の加工精度
を高めることができ、砥石の寿命も延長させることがで
きる。EFFECTS OF THE INVENTION (1) By disposing wear-resistant members on the outer peripheral surface and end surface of a cylindrical base metal, it is possible to remove the uncut portion caused by abrasion, crushing, or falling of the abrasive grains. In the case of machining, the machining accuracy of the curved surface of the corner can be improved, and the life of the grindstone can be extended.
【００２６】（２）耐摩耗部材にスリットを形成するこ
とにより、耐摩耗部材と加工面との接触面積が加工面に
占める割合が大きい場合に、良好な切れ味を維持すると
ともに、切粉の排出や冷却水供給効率を良くすることが
できる。(2) By forming slits in the wear-resistant member, good sharpness is maintained and chip discharge is achieved when the contact area between the wear-resistant member and the machined surface occupies a large proportion of the machined surface. The cooling water supply efficiency can be improved.
【図面の簡単な説明】[Brief description of drawings]
【図１】 本発明の実施形態における軸付き砥石の全体
斜視図である。FIG. 1 is an overall perspective view of a grindstone with a shaft according to an embodiment of the present invention.
【図２】 （ａ）は図１の台金端面の砥粒層の部分拡大
図であり、（ｂ）は台金外周面の砥粒層の部分拡大図で
ある。2A is a partially enlarged view of an abrasive grain layer on an end surface of a base metal in FIG. 1, and FIG. 2B is a partially enlarged view of an abrasive grain layer on an outer peripheral surface of a base metal.
１ 軸 ２ 台金 ３ 台金外周面 ４ 砥粒層 ５ 台金端面 ６ 砥粒層 ７ 溝 ８，９ ダイヤモンド焼結体（ＰＣＤ）チップ １０ 砥石 Ｄ ダイヤモンド砥粒 Ｗ ろう材 θ 傾斜角 1 axis 2 units 3 base metal outer peripheral surface 4 Abrasive layer 5 base metal end face 6 Abrasive layer 7 groove 8,9 Diamond sintered body (PCD) chip 10 whetstone D diamond abrasive W brazing material θ inclination angle
───────────────────────────────────────────────────── フロントページの続き (72)発明者 井上 靖章 福岡県浮羽郡田主丸町大字竹野210番地 ノリタケダイヤ株式会社内 Ｆターム(参考） 3C063 AA02 AB02 BA03 BA08 BA09 BB02 BB24 BC02 BG10 BH05 EE15 EE23 FF22 ─────────────────────────────────────────────────── ─── Continued front page (72) Inventor Yasushi Inoue 210 Takeno, Odaiba, Ukiha-gun, Fukuoka Noritake Diamond Co., Ltd. F-term (reference) 3C063 AA02 AB02 BA03 BA08 BA09 BB02 BB24 BC02 BG10 BH05 EE15 EE23 FF22
Claims (3)
付け法により砥粒を一層固着した軸付き砥石において、
台金外周面の砥粒層の周方向１箇所または複数箇所に砥
粒層全長にわたる長さの耐摩耗部材を配置するととも
に、台金端面の砥粒層の外周寄りに１個または複数個の
耐摩耗部材を配置したことを特徴とする軸付き砥石。1. A shaft-mounted grindstone in which abrasive grains are further fixed to the outer peripheral surface and the end surface of a cylindrical base metal by a brazing method,
A wear-resistant member having a length over the entire length of the abrasive grain layer is arranged at one or more locations in the circumferential direction of the abrasive grain layer on the outer peripheral surface of the base metal, and one or more wear-resistant members are provided on the end face of the base metal near the outer periphery of the abrasive grain layer. A grindstone with a shaft, characterized in that wear-resistant members are arranged.
柱状ダイヤモンド、超硬合金のいずれかである請求項１
記載の軸付き砥石。2. The wear resistant member is a diamond sintered body,
It is one of columnar diamond and cemented carbide.
Grindstone with shaft as described.
求項１または２記載の軸付き砥石。3. The grindstone with a shaft according to claim 1, wherein a slit is formed in the wear resistant member.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002074274A JP3623203B2 (en) | 2002-03-18 | 2002-03-18 | Whetstone with shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002074274A JP3623203B2 (en) | 2002-03-18 | 2002-03-18 | Whetstone with shaft |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2003266319A true JP2003266319A (en) | 2003-09-24 |
| JP3623203B2 JP3623203B2 (en) | 2005-02-23 |
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|---|---|---|---|
| JP2002074274A Expired - Fee Related JP3623203B2 (en) | 2002-03-18 | 2002-03-18 | Whetstone with shaft |
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| Country | Link |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115781543A (en) * | 2022-12-27 | 2023-03-14 | 郑州市邦和金刚石制品有限公司 | Forming grinding wheel for grinding small-modulus gear |
-
2002
- 2002-03-18 JP JP2002074274A patent/JP3623203B2/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115781543A (en) * | 2022-12-27 | 2023-03-14 | 郑州市邦和金刚石制品有限公司 | Forming grinding wheel for grinding small-modulus gear |
| CN115781543B (en) * | 2022-12-27 | 2023-10-03 | 郑州众邦超硬工具有限公司 | Forming grinding wheel for grinding small-modulus gear |
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| Publication number | Publication date |
|---|---|
| JP3623203B2 (en) | 2005-02-23 |
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