JP5371873B2 - Grinding tool - Google Patents

Grinding tool Download PDF

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JP5371873B2
JP5371873B2 JP2010088248A JP2010088248A JP5371873B2 JP 5371873 B2 JP5371873 B2 JP 5371873B2 JP 2010088248 A JP2010088248 A JP 2010088248A JP 2010088248 A JP2010088248 A JP 2010088248A JP 5371873 B2 JP5371873 B2 JP 5371873B2
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grinding
grinding tool
face
cfrp material
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秀彰 有澤
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Mitsubishi Heavy Industries Ltd
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a grinding tool capable of suppressing the inter-layer exfoliation (delamination) of a CFRP material and further improving machining efficiency. <P>SOLUTION: The grinding tool grinds an end face 10a of the CFRP material 10 being a machining object. The grinding tool includes a cylindrical base metal 3, a plurality of units 5 constituted by arranging a plurality of abrasive grains 4 in a row on the base metal 3 so that grinding surfaces 5a may face the inside of the end face 10a of the CFRP material 10 at positions corresponding to a surface on a left side of the end face 10a of the CFRP material 10 when grinding the CFRP material 10, and the plurality of units 5 constituted by arranging the plurality of abrasive grains 4 in a row on the base metal 3 so that grinding surfaces 5a may face the inside of the end face 10a of the CFRP material 10 at positions corresponding to a surface on a right side of the end face 10a of the CFRP material 10 when grinding the CFRP material 10. <P>COPYRIGHT: (C)2012,JPO&amp;INPIT

Description

本発明は、研削工具に関する。   The present invention relates to a grinding tool.

従来、炭素繊維強化プラスチック材（ＣＦＲＰ材材）の加工において生じる層間剥離（デラミネーション）を抑制するため、切削力を材料の両表面から内部方向に向かわせることを目的として、切削刃のねじれ方向を途中で変えた螺旋状の切削刃を有するエンドミルが使用されている（下記特許文献１参照）。   Conventionally, in order to suppress delamination that occurs in the processing of carbon fiber reinforced plastic material (CFRP material), the twisting direction of the cutting blade for the purpose of directing the cutting force from both surfaces of the material to the internal direction An end mill having a spiral cutting blade in which is changed in the middle is used (see Patent Document 1 below).

特開２００９−１９６０１５号公報JP 2009-196015 A

しかしながら、上述した従来の螺旋状の切削刃を有するエンドミルでは、加工能率を上げるために切削速度又は送り速度を上昇させると、エンドミルの切削刃に刃欠けが発生し、短期間で寿命を迎えて使用不可能となってしまうため、加工能率を上げることができないという問題がある。   However, in the above-described end mill having the conventional spiral cutting blade, when the cutting speed or the feed speed is increased in order to increase the processing efficiency, the end mill cutting blade has a chipped edge, and the service life is reached in a short period of time. Since it becomes unusable, there exists a problem that processing efficiency cannot be raised.

以上のことから、本発明は、ＣＦＲＰ材の層間剥離（デラミネーション）を抑制し、さらに加工能率を向上させることができる研削工具を提供することを目的とする。   In view of the above, an object of the present invention is to provide a grinding tool capable of suppressing the delamination of the CFRP material and further improving the processing efficiency.

上記の課題を解決するための第１の発明に係る研削工具は、
加工対象物である積層材料の端面を研削する研削工具において、
円筒状の台金と、
前記積層材料の研削時に前記積層材料の端面の左側の表面に対応する位置において研削面が前記積層材料の端面の内側を向くように前記台金に複数の砥粒を列状に並べて構成した複数の左側ユニットと、
前記積層材料の研削時に前記積層材料の端面の右側の表面に対応する位置において研削面が前記積層材料の端面の内側を向くように前記台金に複数の砥粒を列状に並べて構成した複数の右側ユニットと
を備えた
ことを特徴とする。 The grinding tool according to the first invention for solving the above-mentioned problems is
In a grinding tool that grinds the end face of the laminated material that is the workpiece,
A cylindrical base metal,
A plurality of abrasive grains arranged in a row in the base metal so that the grinding surface faces the inside of the end face of the laminated material at a position corresponding to the left surface of the end face of the laminated material when grinding the laminated material Left side unit of
A plurality of abrasive grains arranged in a row in the base metal so that the grinding surface faces the inside of the end face of the laminated material at a position corresponding to the right surface of the end face of the laminated material when grinding the laminated material And a right side unit.

上記の課題を解決するための第２の発明に係る研削工具は、第１の発明に係る研削工具において、
前記積層材料の研削時に前記積層材料の端面の中心に対応する位置まで前記左側ユニット及び前記右側ユニットを延在させた
ことを特徴とする。 A grinding tool according to a second invention for solving the above-mentioned problems is a grinding tool according to the first invention,
The left unit and the right unit are extended to a position corresponding to the center of the end face of the laminated material during grinding of the laminated material.

上記の課題を解決するための第３の発明に係る研削工具は、第１の発明に係る研削工具において、
前記積層材料の研削時に前記積層材料の端面の左側の表面及び右側の表面以外の部分に対応する位置において研削面の向いている方向が不規則になるように前記台金に設置された複数の砥粒を備えた
ことを特徴とする。 A grinding tool according to a third invention for solving the above-described problems is a grinding tool according to the first invention.
When grinding the laminated material, a plurality of pieces installed on the base metal so that the direction of the grinding surface is irregular at positions corresponding to portions other than the left surface and the right surface of the end surface of the laminated material. It is characterized by having abrasive grains.

本発明によれば、ＣＦＲＰ材の層間剥離（デラミネーション）を抑制し、さらに加工能率を向上させることができる研削工具を提供することができる。   ADVANTAGE OF THE INVENTION According to this invention, the grinding tool which can suppress the delamination (delamination) of CFRP material and can improve a work efficiency further can be provided.

本発明の第１，２の実施例に係る研削工具の模式図である。It is a schematic diagram of the grinding tool which concerns on the 1st, 2nd Example of this invention. 本発明の第１の実施例に係る研削工具における図１に破線で示す部分の拡大図である。It is an enlarged view of the part shown with a broken line in Drawing 1 in a grinding tool concerning the 1st example of the present invention. 本発明の第１の実施例に係る研削工具におけるＡ群及びＢ群のユニットの設置方向を示した図である。It is the figure which showed the installation direction of the unit of A group and B group in the grinding tool which concerns on 1st Example of this invention. 本発明の第２の実施例に係る研削工具における図１に破線で示す部分の拡大図である。It is an enlarged view of the part shown with a broken line in Drawing 1 in a grinding tool concerning the 2nd example of the present invention.

以下、本発明に係る研削工具について、図面を参照しながら説明する。   Hereinafter, a grinding tool according to the present invention will be described with reference to the drawings.

以下、本発明の第１の実施例に係る研削工具について説明する。
図１は、本実施例に係る研削工具１の模式図である。なお、図１中において、矢印Ｍはダウンカット時の研削工具１の送り方向を示しており、矢印Ｒは研削工具１の回転方向を示している。なお、図１においては、ダウンカット時の研削工具１の送り方向を示したが、研削工具１の送り方向を矢印Ｍの反対方向とすることによりアップカットを行うこともできる。 The grinding tool according to the first embodiment of the present invention will be described below.
FIG. 1 is a schematic diagram of a grinding tool 1 according to the present embodiment. In FIG. 1, an arrow M indicates the feed direction of the grinding tool 1 at the time of downcut, and an arrow R indicates the rotation direction of the grinding tool 1. In FIG. 1, the feed direction of the grinding tool 1 at the time of the down cut is shown, but the up cut can also be performed by setting the feed direction of the grinding tool 1 to the direction opposite to the arrow M.

図１に示すように、本実施例に係る研削工具１は、軸２に同軸に取り付けられる円筒状の台金３と、台金３の表面に取り付けられたＣＦＲＰ材１０の端面１０ａを研削するための砥粒４とを備えている。なお、砥粒４は電着により台金に固定されている。また、本実施例においては、砥粒４には０．６ｍｍ程度の大きさのダイヤモンド砥粒を用いることとする。また、本実施例においてはＣＦＲＰ材１０を加工対象として説明するが、これ以外の材質の積層材料を加工対象とすることも可能である。   As shown in FIG. 1, the grinding tool 1 according to this embodiment grinds a cylindrical base metal 3 that is coaxially attached to a shaft 2 and an end face 10 a of a CFRP material 10 that is attached to the surface of the base metal 3. Abrasive grains 4 for the purpose. The abrasive grains 4 are fixed to the base metal by electrodeposition. In the present embodiment, the abrasive grains 4 are diamond abrasive grains having a size of about 0.6 mm. Further, in the present embodiment, the CFRP material 10 is described as a processing target, but a laminated material of a material other than this can also be a processing target.

図２は、本実施例に係る研削工具１における図１に破線で示す部分の拡大図である。なお、図２中において、矢印Ｍはダウンカット時の研削工具１の送り方向を示しており、矢印Ｒは研削工具１の回転方向を示している。なお、図２においては、ダウンカット時の研削工具１の送り方向を示したが、研削工具１の送り方向を矢印Ｍの反対方向とすることによりアップカットを行うこともできる。   FIG. 2 is an enlarged view of a portion indicated by a broken line in FIG. 1 in the grinding tool 1 according to the present embodiment. In FIG. 2, an arrow M indicates the feed direction of the grinding tool 1 at the time of downcut, and an arrow R indicates the rotation direction of the grinding tool 1. In FIG. 2, the feed direction of the grinding tool 1 at the time of the down cut is shown, but the up cut can also be performed by setting the feed direction of the grinding tool 1 to the direction opposite to the arrow M.

図２に示すように、本実施例に係る研削工具１においては、複数の砥粒４を列状に並べ、これをひとつのユニット５として構成している。本実施例においては、ユニット５は、ＣＦＲＰ材１０の左表面１０Ｌ側を研削するユニット５と、ＣＦＲＰ材１０の右表面１０Ｒ側を研削するユニット５を設置している。   As shown in FIG. 2, in the grinding tool 1 according to the present embodiment, a plurality of abrasive grains 4 are arranged in a line and configured as a single unit 5. In this embodiment, the unit 5 includes a unit 5 for grinding the left surface 10L side of the CFRP material 10 and a unit 5 for grinding the right surface 10R side of the CFRP material 10.

なお、本実施例においては、図２中にＡで示す破線の範囲内に設置された研削面５ａが右斜め方向を向き右斜め方向の研削力ＦAを生ずるユニット５をＡ群のユニット５とし、図２中にＢで示す破線の範囲内に設置された研削面５ａが左斜め方向を向き左斜め方向の研削力ＦBを生ずるユニット５をＢ群のユニット５として説明する。また、本実施例における左右は、研削工具１側からＣＦＲＰ材１０を見た場合の左右とする。 In this embodiment, units of group A and unit 5 installed grinding surface 5a in the range of the broken line is produced grinding force F A of the right oblique direction orientation the right oblique direction indicated by A in FIG. 2 5 The unit 5 in which the grinding surface 5a installed in the range of the broken line indicated by B in FIG. 2 faces the left oblique direction and generates the grinding force F B in the left oblique direction will be described as a unit 5 of the B group. Further, the left and right in this embodiment are the left and right when the CFRP material 10 is viewed from the grinding tool 1 side.

図２に示すように、加工対象となるＣＦＲＰ材１０の厚さを考慮して、Ａ群のユニット５は、ＣＦＲＰ材１０の左表面１０Ｌ側に位置する部分が回転方向における前方に位置し、ＣＦＲＰ材１０の端面１０ａの中心側に位置する部分が回転方向における後方に位置するように配置されている。すなわち、Ａ群のユニット５の研削面５ａは、ＣＦＲＰ材１０の端面１０ａの内側を向くように角度を付けて設置されている。言い換えれば、Ａ群のユニット５の研削面５ａは、ＣＦＲＰ材１０の端面１０ａの中心側を向くように設置されている。   As shown in FIG. 2, in consideration of the thickness of the CFRP material 10 to be processed, the unit 5 of the A group has a portion located on the left surface 10L side of the CFRP material 10 positioned forward in the rotation direction, It arrange | positions so that the part located in the center side of the end surface 10a of the CFRP material 10 may be located in the back in a rotation direction. That is, the grinding surface 5 a of the group 5 unit 5 is installed at an angle so as to face the inside of the end surface 10 a of the CFRP material 10. In other words, the grinding surface 5 a of the group 5 unit 5 is installed so as to face the center side of the end surface 10 a of the CFRP material 10.

また、加工対象となるＣＦＲＰ材１０の厚さを考慮して、Ｂ群の砥粒ユニット５は、ＣＦＲＰ材１０の右表面１０Ｒ側に位置する部分が回転方向における前方に位置し、ＣＦＲＰ材１０の端面１０ａの中心側に位置する部分が回転方向における後方に位置するように配置されている。すなわち、Ｂ群のユニット５の研削面５ａは、ＣＦＲＰ材１０の端面１０ａの内側を向くように角度を付けて設置されている。言い換えれば、Ｂ群のユニット５の研削面５ａは、ＣＦＲＰ材１０の端面１０ａの中心側を向くように設置されている。   In consideration of the thickness of the CFRP material 10 to be processed, the group B abrasive grain unit 5 has a portion located on the right surface 10R side of the CFRP material 10 positioned forward in the rotational direction, and the CFRP material 10 The portion located on the center side of the end face 10a is arranged so as to be located rearward in the rotation direction. That is, the grinding surface 5a of the group 5 unit 5 is installed at an angle so as to face the inside of the end surface 10a of the CFRP material 10. In other words, the grinding surface 5 a of the group 5 unit 5 is installed so as to face the center side of the end surface 10 a of the CFRP material 10.

なお、Ａ群のユニット５とＢ群のユニット５との間には周方向で見たときに軸方向において隙間ができないように設置し、切り屑の流れを妨げないように周方向においては間隔をあけて設置する。また、本実施例においては、Ａ群のユニット５とＢ群のユニット５ともに砥粒４を隙間なく並べて列状としているが、周方向で見たときに軸方向において隙間ができないように並べてありさえすれば隙間をあけて設置してもよい。   In addition, the unit 5 of the A group and the unit 5 of the B group are installed so as not to have a gap in the axial direction when viewed in the circumferential direction, and are spaced in the circumferential direction so as not to hinder the flow of chips. Open and install. In this embodiment, the A group unit 5 and the B group unit 5 are arranged in a row by arranging the abrasive grains 4 without gaps, but when viewed in the circumferential direction, they are arranged so that there is no gap in the axial direction. You may install with a gap as long as you do.

図３は、本実施例に係る研削工具におけるＡ群及びＢ群のユニット５の設置方向を示した図である。なお、図３（Ａ）はＡ群のユニット５を示しており、図３（Ｂ）はＢ群のユニット５を示している。
図３（Ａ）に示すように、Ａ群のユニット５は、右斜め方向に研削力ＦAがかかるように設置されている。Ａ群のユニット５は、研削力ＦAがＣＦＲＰ材１０の端面１０ａの内側を向くように、図３（Ａ）に一点鎖線ａで示す軸方向と平行な線と研削面５ａとがなす角θAを「０°＜θA＜９０°」の範囲で設定する。 FIG. 3 is a diagram illustrating the installation directions of the units 5 of the A group and the B group in the grinding tool according to the present embodiment. 3A shows the unit 5 of the A group, and FIG. 3B shows the unit 5 of the B group.
As shown in FIG. 3A, the unit 5 of the A group is installed so that the grinding force F A is applied in the diagonally right direction. The unit 5 of the A group is formed by an angle formed by a grinding surface 5a and a line parallel to the axial direction indicated by a one-dot chain line a in FIG. 3A so that the grinding force F A faces the inside of the end face 10a of the CFRP material 10. θ A is set in the range of “0 ° <θ A <90 °”.

なお、θAは０°に近くなるほど研削力ＦAの周方向を向く成分が強くなり、θAは９０°に近くなるほど研削力ＦAのＣＦＲＰ材１０の端面１０ａの内側を向く成分が強くなる。なお、本実施例においては、研削力ＦAの周方向を向く成分と内側を向く成分のバランスのよい、θA＝４５°となるように設置することとした。 As θ A approaches 0 °, the component of the grinding force F A that faces the circumferential direction becomes stronger, and as θ A approaches 90 °, the component of the grinding force F A that faces the inner side of the end surface 10a of the CFRP material 10 becomes stronger. Become. In this embodiment, the components are set so that θ A = 45 °, which is a good balance between the component facing the circumferential direction of the grinding force F A and the component facing the inside.

また、図３（Ｂ）に示すように、Ｂ群のユニット５は、左斜め方向に研削力ＦBがかかるように設置されている。Ｂ群のユニット５は、研削力ＦBがＣＦＲＰ材１０の端面１０ａの内側を向くように、図３（Ｂ）に一点鎖線ａで示す軸方向と平行な線と研削面５ａとがなす角θBを「０°＜θB＜９０°」の範囲で設定する。 Further, as shown in FIG. 3B, the unit 5 of the group B is installed so that the grinding force F B is applied in the diagonally left direction. The unit 5 of group B has an angle formed by the grinding surface 5a and a line parallel to the axial direction indicated by a dashed line a in FIG. 3B so that the grinding force FB faces the inside of the end surface 10a of the CFRP material 10. θ B is set in the range of “0 ° <θ B <90 °”.

なお、θBは０°に近くなるほど研削力ＦBの周方向を向く成分が強くなり、θAは９０°に近くなるほど研削力ＦAのＣＦＲＰ材１０の端面１０ａの内側を向く成分が強くなる。なお、本実施例においては、研削力ＦBの周方向を向く成分と内側を向く成分のバランスのよい、θB＝４５°となるように設置することとした。 As θ B approaches 0 °, the component facing the circumferential direction of the grinding force F B increases, and as θ A approaches 90 °, the component facing the inside of the end surface 10a of the CFRP material 10 of the grinding force F A increases. Become. In this embodiment, the components are set so that θ B = 45 °, which is a good balance between the component facing the circumferential direction of the grinding force F B and the component facing the inside.

なお、ダイヤモンド砥粒は、一般的に、六角形状又は三角形状の面と長方形状又は正方形状の面とが組み合わさった多面体を成している。本実施例においては、例として、正六角形状の面を上に向けて台金３に取り付けているが、正方形状の面を上に向けて台金３に取り付けるようにしてもよい。そして、正方形状の面を上に向けて台金３に取り付けた場合であっても、正六角形状の面を上にして台金３に取り付けた場合と同様の作用及び効果を得ることができる。   The diamond abrasive grains generally form a polyhedron in which hexagonal or triangular surfaces and rectangular or square surfaces are combined. In this embodiment, as an example, the regular hexagonal surface is attached to the base metal 3 with the surface facing upward, but the square surface may be attached to the base metal 3 with the square surface facing upward. And even if it is a case where it attaches to the base metal 3 with the square-shaped surface facing up, the same operation and effect as when attached to the base metal 3 with the regular hexagonal surface facing up can be obtained. .

以上説明したように、本実施例に係る研削工具１によれば、従来のエンドミルと同様の原理で研削方向をＣＦＲＰ材１０の左表面１０Ｌ及び右表面１０Ｒから内側に向かわせるように、ユニット５の研削面５ａの方向に規則性を持たせことにより、ＣＦＲＰ材１０の層間剥離（デラミネーション）を抑制することができる。   As described above, according to the grinding tool 1 according to the present embodiment, the unit 5 is arranged so that the grinding direction is directed inward from the left surface 10L and the right surface 10R of the CFRP material 10 on the same principle as the conventional end mill. By providing regularity in the direction of the grinding surface 5a, delamination of the CFRP material 10 can be suppressed.

さらに、本実施例に係る研削工具１によれば、従来用いられていたエンドミルに比べ、切刃数を増やし、切刃を強化できることとなるため、研削速度を上げることができ、加工能率を向上させることができる。   Furthermore, according to the grinding tool 1 according to the present embodiment, the number of cutting edges can be increased and the cutting edges can be strengthened as compared with the conventionally used end mill, so that the grinding speed can be increased and the processing efficiency is improved. Can be made.

以下、本発明の第２の実施例に係る研削工具について説明する。
本実施例に係る研削工具１の構成は、第１の実施例に係る研削工具１とほぼ同様であるが、加工対象物であるＣＦＲＰ材１０の左表面１０Ｌ及び右表面１０Ｒを研削するユニット５以外の砥粒４の研削面は向いている方向が不規則になっている点が異なっている。 The grinding tool according to the second embodiment of the present invention will be described below.
The configuration of the grinding tool 1 according to the present embodiment is substantially the same as that of the grinding tool 1 according to the first embodiment, but the unit 5 for grinding the left surface 10L and the right surface 10R of the CFRP material 10 that is the workpiece. The grinding surface of the other abrasive grains 4 is different in that the facing direction is irregular.

図４は、本実施例に係る研削工具１における図１に破線で示す部分の拡大図である。なお、図４中において、矢印Ｍはダウンカット時の研削工具１の送り方向を示しており、矢印Ｒは研削工具１の回転方向を示している。なお、図４においては、ダウンカット時の研削工具１の送り方向を示したが、研削工具１の送り方向を矢印Ｍの反対方向とすることによりアップカットを行うこともできる。   FIG. 4 is an enlarged view of a portion indicated by a broken line in FIG. 1 in the grinding tool 1 according to the present embodiment. In FIG. 4, an arrow M indicates the feed direction of the grinding tool 1 at the time of downcut, and an arrow R indicates the rotation direction of the grinding tool 1. In FIG. 4, the feed direction of the grinding tool 1 at the time of the down cut is shown, but the up cut can also be performed by setting the feed direction of the grinding tool 1 to the direction opposite to the arrow M.

図４に示すように、本実施例に係る研削工具１の砥粒４は、ＣＦＲＰ材１０の左表面１０Ｌ及び右表面１０Ｒを研削するユニット５以外の砥粒４の研削面の向いている方向が不規則になっている。   As shown in FIG. 4, the abrasive grains 4 of the grinding tool 1 according to the present embodiment are directed in the direction in which the grinding surface of the abrasive grains 4 other than the unit 5 that grinds the left surface 10L and the right surface 10R of the CFRP material 10 faces. Is irregular.

なお、本実施例においては、図４中にＡで示す破線の範囲内に設置された研削面５ａが右斜め方向を向き右斜め方向の研削力ＦAを生ずるユニット５をＡ群のユニット５とし、図４中にＢで示す破線の範囲内に設置された研削面５ａが左斜め方向を向き左斜め方向の研削力ＦBを生ずるユニット５をＢ群のユニット５とし、図４中にＣで示す破線の範囲内に設置された研削面が不規則な方向を向いた砥粒４をＣ群の砥粒４として説明する。また、本実施例における左右は、研削工具１側からＣＦＲＰ材１０を見た場合の左右とする。 In this embodiment, units of group A and unit 5 installed grinding surface 5a in the range of the broken line is produced grinding force F A of the right oblique direction orientation the right oblique direction indicated by A in FIG. 4 5 and then, the unit 5 causing the left oblique direction of the grinding force F B grinding surface 5a disposed within the dashed line orientation a left oblique direction indicated by B in FIG. 4 and unit 5 in group B, in FIG. 4 The abrasive grains 4 in which the grinding surface installed in the range of the broken line indicated by C faces an irregular direction will be described as the abrasive grains 4 of the C group. Further, the left and right in this embodiment are the left and right when the CFRP material 10 is viewed from the grinding tool 1 side.

図４に示すように、本実施例においては、ＣＦＲＰ材１０の厚さを考慮して、Ａ群のユニット５はＣＦＲＰ材１０の左表面１０Ｌを研削するように配置し、Ｂ群のユニット５はＣＦＲＰ材１０の右表面１０Ｒを研削するように配置し、Ｃ群の砥粒４はＣＦＲＰ材１０の端面１０ａの左表面１０Ｌ及び右表面１０Ｒ以外の部分を研削するように配置する。また、Ｃ群の砥粒４は、周方向で見たときに軸方向において隙間があかないように設置することとする。   As shown in FIG. 4, in this embodiment, in consideration of the thickness of the CFRP material 10, the group A unit 5 is disposed so as to grind the left surface 10 </ b> L of the CFRP material 10, and the group B unit 5 Are arranged so as to grind the right surface 10R of the CFRP material 10, and the abrasive grains 4 of the group C are arranged so as to grind portions other than the left surface 10L and the right surface 10R of the end surface 10a of the CFRP material 10. Further, the abrasive grains 4 of group C are installed so that there is no gap in the axial direction when viewed in the circumferential direction.

以上説明したように、本実施例に係る研削工具１によれば、第１の実施例に係る研削工具１が奏する効果に加え、Ｃ群の砥粒４は研削面を規則的に向ける必要が無いため、砥粒４の台金３への取り付けの手間を軽減することができる。このため、研削工具１のコストを軽減することができる。   As described above, according to the grinding tool 1 according to the present embodiment, in addition to the effects exhibited by the grinding tool 1 according to the first embodiment, the C-group abrasive grains 4 need to have the grinding surface directed regularly. Since it does not exist, the trouble of attaching the abrasive grains 4 to the base metal 3 can be reduced. For this reason, the cost of the grinding tool 1 can be reduced.

本発明は、例えば、ＣＦＲＰ材の端面を研削する研削工具に利用することが可能である。   The present invention can be used for, for example, a grinding tool for grinding an end face of a CFRP material.

１ 研削工具
２ 軸
３ 台金
４ 砥粒
５ ユニット
５ａ 研削面
１０ ＣＦＲＰ材
１０ａ 端面
１０Ｌ 左表面
１０Ｒ 右表面 DESCRIPTION OF SYMBOLS 1 Grinding tool 2 Shaft 3 Base metal 4 Abrasive grain 5 Unit 5a Grinding surface 10 CFRP material 10a End surface 10L Left surface 10R Right surface

Claims (3)

加工対象物である積層材料の端面を研削する研削工具において、
円筒状の台金と、
前記積層材料の研削時に前記積層材料の端面の左側の表面に対応する位置において研削面が前記積層材料の端面の内側を向くように前記台金に複数の砥粒を列状に並べて構成した複数の左側ユニットと、
前記積層材料の研削時に前記積層材料の端面の右側の表面に対応する位置において研削面が前記積層材料の端面の内側を向くように前記台金に複数の砥粒を列状に並べて構成した複数の右側ユニットと
を備えたことを特徴とする研削工具。 In a grinding tool that grinds the end face of the laminated material that is the workpiece,
A cylindrical base metal,
A plurality of abrasive grains arranged in a row in the base metal so that the grinding surface faces the inside of the end face of the laminated material at a position corresponding to the left surface of the end face of the laminated material when grinding the laminated material Left side unit of
A plurality of abrasive grains arranged in a row in the base metal so that the grinding surface faces the inside of the end face of the laminated material at a position corresponding to the right surface of the end face of the laminated material when grinding the laminated material A right side unit and a grinding tool. 前記積層材料の研削時に前記積層材料の端面の中心に対応する位置まで前記左側ユニット及び前記右側ユニットを延在させた
ことを特徴とする請求項１に記載の研削工具。 The grinding tool according to claim 1, wherein the left unit and the right unit are extended to a position corresponding to a center of an end face of the laminated material during grinding of the laminated material. 前記積層材料の研削時に前記積層材料の端面の左側の表面及び右側の表面以外の部分に対応する位置において研削面の向いている方向が不規則になるように前記台金に設置された複数の砥粒を備えた
ことを特徴とする請求項１に記載の研削工具。 When grinding the laminated material, a plurality of pieces installed on the base metal so that the direction of the grinding surface is irregular at positions corresponding to portions other than the left surface and the right surface of the end surface of the laminated material. The grinding tool according to claim 1, comprising abrasive grains.
JP2010088248A 2010-04-07 2010-04-07 Grinding tool Expired - Fee Related JP5371873B2 (en)

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