JPS6254632B2 - - Google Patents
Info
- Publication number
- JPS6254632B2 JPS6254632B2 JP58203351A JP20335183A JPS6254632B2 JP S6254632 B2 JPS6254632 B2 JP S6254632B2 JP 58203351 A JP58203351 A JP 58203351A JP 20335183 A JP20335183 A JP 20335183A JP S6254632 B2 JPS6254632 B2 JP S6254632B2
- Authority
- JP
- Japan
- Prior art keywords
- substrate
- coated abrasive
- grinding
- abrasive paper
- polishing
- 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.)
- Expired
Links
- 239000000758 substrate Substances 0.000 claims description 51
- 238000005498 polishing Methods 0.000 claims description 27
- 239000004744 fabric Substances 0.000 claims description 12
- 229920005989 resin Polymers 0.000 claims description 11
- 239000011347 resin Substances 0.000 claims description 11
- 238000004519 manufacturing process Methods 0.000 description 7
- 239000000853 adhesive Substances 0.000 description 6
- 230000001070 adhesive effect Effects 0.000 description 6
- 238000005266 casting Methods 0.000 description 6
- 230000000052 comparative effect Effects 0.000 description 6
- 230000007423 decrease Effects 0.000 description 5
- 239000011521 glass Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 239000003822 epoxy resin Substances 0.000 description 4
- 229920000647 polyepoxide Polymers 0.000 description 4
- 238000003825 pressing Methods 0.000 description 4
- 239000002657 fibrous material Substances 0.000 description 3
- 230000002093 peripheral effect Effects 0.000 description 3
- 229920005992 thermoplastic resin Polymers 0.000 description 3
- 229920001187 thermosetting polymer Polymers 0.000 description 3
- 238000005520 cutting process Methods 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
- B24D13/00—Wheels having flexibly-acting working parts, e.g. buffing wheels; Mountings therefor
- B24D13/14—Wheels having flexibly-acting working parts, e.g. buffing wheels; Mountings therefor acting by the front face
- B24D13/16—Wheels having flexibly-acting working parts, e.g. buffing wheels; Mountings therefor acting by the front face comprising pleated flaps or strips
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Polishing Bodies And Polishing Tools (AREA)
Description
（産業上の利用分野）
本発明は、研磨布紙を備え、研磨のみならず研
削にも使用できるようにした回転研削研磨具に関
するものである。
（従来技術）
従来より、円板状の基板上に複数の研磨布紙を
放射状に配置接着して回転研磨具としたものは
種々提案されかつ市販されているが、そのいずれ
も研磨使用を主目的としたものであつて、研削砥
石なみの研削機構を有するものは提案されていな
い。すなわち、このような研磨布紙を用いたもの
は、通常、研磨布紙の弾性を利用して被削材に食
い込ますことなくその表面のみを研磨するときに
優れた効果が発揮されるものであり、それ故、研
削作業を行うつもりで被削材に対する押付力を増
大させても研磨布紙が逃げて研削作用が行われ
ず、この研削作用の確保のためにさらに押付力を
増大させたときには、接着面での研磨布紙の剥れ
や切断等を起す現象が生じるものである。
そこで、上記の被削材に対する押付力増大時の
現象を防ぐために、基本的な構成として、研磨布
紙が大きな逃げを生じないよう基板上での研磨布
紙の配置間隔を狭め、かつ予め各研磨布紙を基板
に対して回転方向後側に斜めに倒して接着してお
くことにより、各研磨布紙の基板に接する部分を
隣接する研磨布紙で覆つて保護するとともに、研
磨布紙を適度の弾性を示す程度の逃げに抑えるよ
うにして、研削作用を十分発揮できるようにし
た、研磨布紙使用の回転研削研磨具が考えられ
る。
ところが、このような回転研削研磨具を具体的
に製作実施する場合において、円板状基板として
フアイバー材を使用し、このフアイバー製基板に
研磨布紙を上記の如く並べて接着剤により接着す
ることにより作られたものは、一応本来の目的を
達成し得るが、基板を構成するフアイバー材の強
度が比較的弱いことから、使用回転数を研削砥石
で一般に達成されている周速度4300ｍ／minまで
上昇させることは危険を伴い、周速度約3000ｍ／
minが限度であり、研削研磨時の作業能率の低下
はまぬがれ得ない。
また、第６図および第７図に示すように、例え
ばポリカーボネイト、ポプロピレン等強度の大き
い熱可塑性樹脂よりなる円板状基板ａに放射状に
延びる複数のスリツトｂ，ｂ，…を穿設し、該各
スリツトｂに、一端に突出部c1を有する略四角形
の研磨布紙ｃの該突出部c1をそれぞれ挿入した上
で、各スリツトｂ内に例えばエポキシ樹脂等の接
着剤を流し込んで各研磨布紙ｃを基板ａに固着す
ることによつて作ることもできる。しかし、この
ものでは、基板ａの強度は十分であつても、接着
部での熱可塑性樹脂製基板ａに対する接着剤の接
着強度が不十分であり、そのため、やはり上記研
削砥石なみの周速度4300ｍ／minでの使用は期待
できないものである。しかも、製作時には基板ａ
の各スリツトｂに研磨布紙ｃの突出部c1を確実に
挿入する手間を要して、生産効率が悪いという欠
点もある。
（発明の目的）
本発明はかかる点に鑑みてなされたものであ
り、その目的とするところは、上記の研磨布紙使
用の回転研削研磨具において、その研磨布紙の基
板に対する固着構造を一体植込み構造とすること
により、優れた研磨および研削作用を持ちなが
ら、研削砥石なみの回転数（周速度4300ｍ／
min）で使用しても十分実用に耐え、かつ効率良
く生産できるようにした回転研削研磨具の提供を
実現せんとすることにある。
（発明の構成）
上記目的の達成のため、本発明の構成は、円板
状基板は硬化性樹脂を注型成形してなるものと
し、該基板に、一端に突出部を有する略四角形の
複数枚の研磨布紙が、放射状にかつ各研磨布紙の
裏面を基板回転方向後側の研磨布紙の研磨面（表
面）上に一部重ねて円周方向に並べられた状態で
上記突出部にて一体に植え込まれているものであ
る。このことにより、基板を注型成形しながら、
所定状態に配置された複数の研磨布紙を樹脂硬化
に伴い基板と一体に固着するようにしたものであ
る。
（発明の効果）
したがつて、本発明によれば、円板状基板を硬
化性樹脂により注型成形すると同時に、所定形状
に配置された複数枚の研磨布紙の突出部を基板と
一体に固着してなるものであるので、硬化性樹脂
製基板の強度および該基板に対する研磨布紙の固
着強度はいずれも増大して、研削砥石なみの周速
度で回転使用しても基板自体の破壊や研磨布紙の
基板からの脱離を生じることなく十分実用性を有
するものとなり、よつて優れた研磨作用のみなら
ず研削にも良好に使用可能で、かつ耐久性に優れ
た、研磨布紙を使用した回転研削研磨具の実現を
図ることができる。また、基板の注型成形と同時
に研磨布紙が一体に固着されるので、研磨布紙を
基板のスリツトに挿入する手間が不要となり、上
記回転研削研磨具の生産を効率良く行うことがで
きる。
（実施例）
以下、本発明の実施例を図面に基づいて具体的
に説明する。
第１図および第２図は本発明の実施例に係る回
転研削研磨具Ａを示し、１はエポキシ樹脂等の熱
硬化性樹脂により注型成形された円板状基板であ
つて、該基板１は、その中心に回転原動機（例え
ばデイスクグラインダ）の回転軸に取り付けるた
めの取付孔１ａを有するとともに、該取付孔１ａ
の周りに他の部分よりも裏面側にオフセツトした
オフセツト部１ｂを有している。また、この基板
１には所定枚数（図では１枚）の補強用ガラスク
ロス２が表裏面と平行になるように一体に埋設さ
れている。
また、上記基板１にはその表面外周部分すなわ
ちオフセツト部１ｂ以外の表面に、第４図に示す
ような、各々一端に突出部３ａを有する略四角形
の複数枚の研磨布紙３，３，…がその２枚重合し
たものを１組として複数組上記各突出部３ａにて
一体に植え込まれている。そして、第３図に拡大
展開して示すように、上記研磨布紙３，３，…の
各組は基板１に対し、放射状に、かつ基板１の回
転方向（第１図で矢符にて示す方向）後側に傾斜
して、各組の研磨布紙３，３のうち基板回転方向
後側の研磨布紙３の裏面３ｃ先端部が該各組より
も基板回転方向後側に隣接する組の研磨布紙３，
３のうち基板回転方向前側にある研磨布紙３の研
磨面３ｂ基部に重合するように円周方向に等間隔
あけて並べられた状態で配置されている。
ここで、上記回転研削研磨具Ａの製作方向を第
５図によつて説明するに、先ず、同図ａに示すよ
うな、基板１の取付孔１ａを形成するためのピン
４ａを中心に立設した注型用金型４を用意し、こ
の金型４内に同図ｂに示すように硬化性樹脂にて
プリプレグされたガラスクロス２を挿入したの
ち、同図ｃに示すように複数枚の研磨布紙３，
３，…を２枚重ねにしながら、各々の突出部３ａ
が金型４内に入り込みかつ先端部３ｄが金型４の
外枠４ｂよりも外側にはみ出すように配置して所
定状態に並べ、次いで、金型４内にその中心部か
ら硬化剤を混合した熱硬化性樹脂を注型して、該
樹脂内にガラスクロス２および各研磨布紙３の突
出部３ａを一体に埋め込み、しかる後上記硬化性
樹脂の硬化を待つて型外しを行うことにより、同
図ｄに示すような回転研削研磨具Ａが製作され
る。
したがつて、上記実施例の回転研削研磨具Ａに
おいては、研磨布紙３，３，…の各組が基板１に
対し、基板１の回転方向後側に傾斜して、該研磨
布紙３，３，…の各組の裏面部が該各組よりも基
板回転方向後側に位置する研磨布紙３，３，…の
組の表面部に一部重なるように配置されて各研磨
布紙３の突出部３ａにて一体に植え込まれている
ため、各研磨布紙３の基板１に接する基部が該各
研磨布紙３に隣接する研磨布紙３で覆われ、かつ
研磨布紙３，３，…全体の弾性が高まつてその逃
げが抑えられる。その結果、被削材に対する押付
力を増大させて研削を行つても研磨布紙３，３，
…の切断や基板１からの剥れ、あるいは研磨布紙
３，３，…の逃げを生じることなく被削材を良好
に研削することができ、よつて研磨布紙３，３，
…を使用しながら研磨のみならず研削をも良好に
行うことができる。
また、基板１が高強度の熱硬化性樹脂よりな
り、かつ該基板１にその注型成形と同時に研磨布
紙３，３，…が一体に植え込まれて強固に固着さ
れているため、研削砥石なみの周速数（4300ｍ／
min）で回転させて研削作業を行つても、基板１
が破壊したり研磨布紙３，３，…が基板１から脱
離したりすることはなく、よつて研削作業での作
業性、安全性が高まつて十分実用に耐え得るもの
となり、かつ耐久性に優れたものとなる。しか
も、上記基板１に補強用ガラスクロス２を容易に
埋設することができ、このガラスクロス２により
基板１の回転強度を極めて高いものとすることが
でき、上記研削作業での作業性、安全性および耐
久性のより一層の向上を図ることができる。
さらに、基板１の注型成形と同時に該基板１と
研磨布紙３，３，…とを一体に接着するため、基
板のスリツトに研磨布紙の突出部を挿入する場合
の如き手間が不要であり、第５図ｃに示すように
金型４内に各研磨布紙３の突出部３ａを挿入する
手間だけで済み、よつて効率良く生産することが
できる。
尚、上記実施例では、重合された２枚の研磨布
紙３，３を１組として該各組を基板１の円周方向
に所定角度間隔あけて並べるようにしたが、３枚
以上の研磨布紙３，３，…を重ね合せたものを１
組として並べてもよく、あるいは逆に、１枚の研
磨布紙３のみを並べてもよい。その場合、各組で
の研磨布紙３，３，…の重合枚数が多くなると、
研磨布紙３，３，…全体の弾性が下がつて研削能
力が増大するが研磨能力は下がり、逆に、研磨布
紙３，３，…の重合枚数が少なくなると、研磨布
紙全体３，３，…の弾性が上昇して研削能力が下
がるが研磨能力は増大するという特性を有してお
り、研削および研磨の各能力をバランス良く備え
るためには、研磨布紙３の重合枚数を上記実施例
の如く２枚とするのが好ましい。
最後に具体例について説明する。
上記本発明の実施例にて説明した製作方法によ
り、重合された２枚の研磨布紙を１組として各組
がエポキシ樹脂製の基板の円周方向に10゜の角度
間隔をあけて一体に植え込まれてなる外径180mm
の回転研削研磨具（本発明例）を製作した。この
場合、研磨布紙の総数は72枚となる。また、比較
例として、上記従来技術の項で説明した如く基板
をフアイバー材で構成したもの（第１比較例）
と、同じく熱可塑性樹脂製基板のスリツトに研磨
布紙を挿入してエポキシ樹脂よりなる接着剤で一
体に接着したもの（第２比較例）とを製作した。
この両比較例の外径、研磨布紙の配列、その枚数
等は上記本発明例のものと同じである。
そして、以上の３つの試作品の研削性能につい
て試験を行つたところ、研削能力の差異はさほど
認められないが、回転速度については、下記表に
示すように本発明例のものが他の比較例に較べて
大きな回転強度を有することが判る。
(Industrial Application Field) The present invention relates to a rotary grinding tool equipped with coated abrasive paper and capable of being used not only for polishing but also for grinding. (Prior art) Various types of rotary polishing tools have been proposed and commercially available in which a plurality of coated abrasive papers are arranged and bonded radially on a disc-shaped substrate, but none of them are mainly used for polishing. However, no one has been proposed that has a grinding mechanism comparable to that of a grinding wheel. In other words, products using such coated abrasive paper usually exhibit excellent effects when polishing only the surface of the workpiece without biting into the material by utilizing the elasticity of the coated abrasive paper. Therefore, even if the pressing force against the workpiece is increased with the intention of performing grinding work, the coated abrasive paper escapes and the grinding action is not performed, and when the pressing force is further increased to ensure this grinding action. , phenomena such as peeling or cutting of the coated abrasive paper on the adhesive surface occur. Therefore, in order to prevent the above-mentioned phenomenon when the pressing force against the workpiece increases, the basic configuration is to narrow the arrangement interval of the coated abrasive paper on the substrate so that the coated abrasive paper does not escape significantly, and to By tilting the coated abrasive paper diagonally backwards in the direction of rotation and adhering it to the substrate, the part of each coated abrasive paper that contacts the substrate is covered and protected by the adjacent coated abrasive paper, and the coated abrasive paper is A rotary grinding and polishing tool using coated abrasive paper is conceivable, which suppresses the relief to a level that exhibits appropriate elasticity and is able to fully exert its grinding action. However, when actually manufacturing such a rotary grinding and polishing tool, a fiber material is used as a disk-shaped substrate, and abrasive cloth papers are arranged on this fiber substrate as described above and bonded with adhesive. Although the manufactured product was able to achieve its original purpose, the strength of the fiber material that made up the substrate was relatively weak, so the rotation speed was increased to 4300 m/min, which is the peripheral speed commonly achieved with grinding wheels. It is dangerous to do so, and the circumferential speed is approximately 3000m/
min is the limit, and a decrease in work efficiency during grinding and polishing cannot be avoided. Further, as shown in FIGS. 6 and 7, a plurality of radially extending slits b, b, ... are bored in a disc-shaped substrate a made of a thermoplastic resin with high strength such as polycarbonate or poppropylene, After inserting the protrusion c 1 of a substantially rectangular coated abrasive paper c having a protrusion c 1 at one end into each slit b, an adhesive such as epoxy resin is poured into each slit b. It can also be made by fixing coated abrasive paper c to substrate a. However, in this case, even though the strength of the substrate a is sufficient, the adhesion strength of the adhesive to the thermoplastic resin substrate a at the adhesive part is insufficient, and therefore, the circumferential speed of 4300 m, which is equivalent to the above-mentioned grinding wheel, is still insufficient. /min is not expected to be used. Moreover, during production, the board a
There is also a drawback that production efficiency is low because it takes time and effort to reliably insert the projections c1 of the coated abrasive paper c into each slit b. (Object of the Invention) The present invention has been made in view of the above points, and its object is to provide the above-mentioned rotary grinding tool using coated abrasive paper with an integrated structure for fixing the coated abrasive paper to the substrate. The implanted structure provides excellent polishing and grinding effects while also achieving a rotational speed comparable to that of a grinding wheel (peripheral speed of 4300 m/s).
The object of the present invention is to provide a rotary grinding and polishing tool that is sufficiently practical even when used at a maximum speed of 10 min) and that can be produced efficiently. (Structure of the Invention) In order to achieve the above object, the structure of the present invention is such that the disk-shaped substrate is formed by casting a curable resin, and the substrate has a plurality of approximately rectangular shapes having a protrusion at one end. At the protrusion, sheets of coated abrasive paper are arranged radially in a circumferential direction with the back side of each coated abrasive partially overlapping the polishing surface (front surface) of the coated abrasive paper on the rear side in the direction of rotation of the substrate. It is integrated into the plant. By this, while casting the board,
A plurality of coated abrasive papers arranged in a predetermined state are fixed to the substrate as the resin hardens. (Effects of the Invention) Therefore, according to the present invention, a disc-shaped substrate is cast-molded with a curable resin, and at the same time, the protruding portions of a plurality of sheets of abrasive cloth arranged in a predetermined shape are integrally formed with the substrate. Since the substrate is fixed, both the strength of the curable resin substrate and the adhesion strength of the coated abrasive paper to the substrate are increased, and even if the substrate is rotated at the peripheral speed of a grinding wheel, the substrate itself will not be destroyed. The coated abrasive paper has sufficient practicality without causing detachment from the substrate, and therefore has a coated abrasive paper that not only has an excellent polishing effect but also can be used well for grinding, and has excellent durability. The rotary grinding and polishing tool used can be realized. Further, since the coated abrasive paper is fixed integrally with the substrate at the same time as the casting molding of the substrate, there is no need to insert the coated abrasive paper into the slit of the substrate, and the rotary grinding tool can be produced efficiently. (Example) Hereinafter, an example of the present invention will be specifically described based on the drawings. 1 and 2 show a rotary grinding and polishing tool A according to an embodiment of the present invention, in which 1 is a disc-shaped substrate cast-molded from a thermosetting resin such as an epoxy resin; has a mounting hole 1a at its center for mounting on the rotating shaft of a rotary motor (for example, a disc grinder), and the mounting hole 1a
It has an offset portion 1b around it that is offset toward the back surface side from the other portions. Further, a predetermined number (one piece in the figure) of reinforcing glass cloth 2 is integrally embedded in this substrate 1 so as to be parallel to the front and back surfaces. The substrate 1 also has a plurality of approximately rectangular coated abrasive papers 3, 3, . . . each having a protrusion 3a at one end, as shown in FIG. A plurality of sets are made up of two superposed sheets and are integrally implanted at each of the protrusions 3a. As shown in an enlarged view in FIG. 3, each set of the abrasive coated papers 3, 3, . . . (direction shown) tilted to the rear side, the tip of the back surface 3c of the abrasive coated paper 3 on the rear side in the substrate rotation direction of each set of abrasive coated papers 3, 3 is adjacent to the rear side in the substrate rotation direction than each set Set of abrasive cloth paper 3,
3, they are arranged at equal intervals in the circumferential direction so as to overlap the base of the polishing surface 3b of the coated polishing paper 3 on the front side in the substrate rotation direction. Here, to explain the manufacturing direction of the rotary grinding and polishing tool A with reference to FIG. 5, first, as shown in FIG. Prepare a mold 4 for casting, and after inserting the glass cloth 2 prepregned with a curable resin into the mold 4 as shown in FIG. abrasive cloth paper 3,
3, ... while stacking two sheets, each protrusion 3a
were arranged in a predetermined state so that they entered the mold 4 and the tip 3d protruded outside the outer frame 4b of the mold 4, and then a curing agent was mixed into the mold 4 from the center thereof. By casting a thermosetting resin, embedding the glass cloth 2 and the protrusions 3a of each coated abrasive paper 3 into the resin, and then removing the mold after waiting for the curing resin to harden. A rotary grinding and polishing tool A as shown in FIG. d is manufactured. Therefore, in the rotary grinding and polishing tool A of the above embodiment, each set of coated abrasive papers 3, 3, . , 3, ... are arranged so that the back surface of each set of abrasive coated papers 3, 3,... is arranged so as to partially overlap the front surface of the set of abrasive coated papers 3, 3,... located on the rear side in the direction of substrate rotation than each set of abrasive coated papers. 3 are integrally implanted at the protruding portions 3a of the coated abrasive paper 3, so that the base portion of each coated abrasive paper 3 in contact with the substrate 1 is covered with the coated abrasive paper 3 adjacent to the coated abrasive paper 3, and the coated abrasive paper 3 , 3,... The overall elasticity is increased and its escape is suppressed. As a result, even when grinding is performed by increasing the pressing force against the workpiece, the coated abrasive paper 3, 3,
The workpiece can be well ground without cutting or peeling off from the substrate 1, or the coated abrasive papers 3, 3,... escape, and the coated abrasive papers 3, 3,...
Not only polishing but also grinding can be performed well while using... In addition, since the substrate 1 is made of a high-strength thermosetting resin and the coated abrasive papers 3, 3, ... are embedded and firmly fixed to the substrate 1 at the same time as the casting, the grinding Circumferential speed similar to that of a whetstone (4300m/
Even if the grinding work is performed by rotating the board at
will not be destroyed or the coated abrasive papers 3, 3, etc. will not come off from the substrate 1, thus improving the workability and safety of the grinding work, making it sufficiently practical and durable. Becomes excellent. Moreover, the reinforcing glass cloth 2 can be easily embedded in the substrate 1, and the glass cloth 2 can make the rotational strength of the substrate 1 extremely high, improving workability and safety in the grinding operation. And durability can be further improved. Furthermore, since the substrate 1 and the coated abrasive papers 3, 3, etc. are bonded together at the same time as the substrate 1 is cast-molded, the effort required to insert the protrusion of the coated abrasive paper into the slit of the substrate is unnecessary. As shown in FIG. 5c, it is only necessary to insert the protrusions 3a of each coated abrasive paper 3 into the mold 4, and therefore production can be carried out efficiently. In the above embodiment, the two polymerized coated abrasive papers 3, 3 are arranged as one set, and each set is arranged at a predetermined angular interval in the circumferential direction of the substrate 1. 1 is made by stacking cloth paper 3, 3,...
They may be arranged as a set, or conversely, only one coated abrasive paper 3 may be arranged. In that case, if the number of overlapping coated abrasive papers 3, 3, ... in each set increases,
As the overall elasticity of the coated abrasive paper 3, 3,... decreases, the grinding capacity increases, but the polishing capacity also decreases.Conversely, when the number of overlapping coated abrasive papers 3,3,... decreases, the overall elasticity of the coated abrasive paper 3, 3, ... has the characteristic that the grinding ability decreases as the elasticity increases, but the polishing ability increases.In order to provide each ability of grinding and polishing in a well-balanced manner, the number of overlapping sheets of coated abrasive paper 3 must be adjusted to the above-mentioned level. It is preferable to use two sheets as in the embodiment. Finally, a specific example will be explained. By the manufacturing method explained in the above embodiment of the present invention, each set of two polymerized coated abrasive papers is integrally assembled with an angular interval of 10 degrees in the circumferential direction of an epoxy resin substrate. Implanted outer diameter 180mm
A rotary grinding and polishing tool (an example of the present invention) was manufactured. In this case, the total number of coated abrasive papers is 72. In addition, as a comparative example, a substrate made of fiber material as explained in the prior art section (first comparative example)
A second comparative example was manufactured by inserting coated abrasive paper into the slits of a thermoplastic resin substrate and bonding them together with an adhesive made of epoxy resin.
The outer diameter, arrangement of coated abrasive paper, number of sheets, etc. of both comparative examples are the same as those of the above-mentioned inventive example. When we tested the grinding performance of the above three prototypes, we found that there was not much difference in grinding ability, but as for the rotational speed, as shown in the table below, the inventive example differs from the other comparative example. It can be seen that the rotational strength is greater than that of the
【表】
したがつて、デイスクグライダの普通速度用
（周速度4300ｍ／min用）として用いるために
は、構造規格上、普通速度の２倍以上すなわち
8600ｍ／min以上の周速度（外径180mmのもので
は15216rpm以上の回転数）が要求されているの
で、本発明例のもののみが上記規格を満たし得る
ことになる。[Table] Therefore, in order to use the disc glider for normal speed (circumferential speed 4300 m/min), the structural standard requires a speed that is at least twice the normal speed, that is,
Since a circumferential speed of 8,600 m/min or more (rotational speed of 15,216 rpm or more for one with an outer diameter of 180 mm) is required, only the example of the present invention can satisfy the above standards.
第１図は本発明の実施例を示す斜視図、第２図
は第１図の−線断面図、第３図は第１図の
−線断面拡大展開図、第４図は研磨布紙の斜視
図、第５図ａ〜ｄは製作工程を示す説明図、第６
図は比較例を示す斜視図、第７図は第６図の−
線断面図である。
Ａ……回転研削研磨具、１……基板、３……研
磨布紙、３ａ……突出部、３ｂ……研磨面、３ｃ
……裏面。
Fig. 1 is a perspective view showing an embodiment of the present invention, Fig. 2 is a sectional view taken along the - line in Fig. 1, Fig. 3 is an enlarged developed view of the - line sectional view in Fig. Perspective view, Figures 5 a to d are explanatory views showing the manufacturing process, Figure 6
The figure is a perspective view showing a comparative example, and Fig. 7 is a - of Fig. 6.
FIG. A...Rotary grinding polishing tool, 1...Substrate, 3...Abrasive coated paper, 3a...Protrusion, 3b...Abrading surface, 3c
...Back side.
Claims (1)
に、一端に突出部を有する略四角形の複数枚の研
磨布紙が、放射状にかつ各研磨布紙の裏面を基板
回転方向後側の研磨布紙の研磨面上に一部重合さ
せて円周方向に並べられた状態で上記突出部にて
一体に植え込まれてなることを特徴とする回転研
削研磨具。1. A plurality of approximately rectangular coated abrasive papers having a protrusion at one end are placed on a disc-shaped substrate cast-molded with a curable resin, radially polishing the back surface of each coated abrasive paper in the rear direction in the direction of rotation of the substrate. A rotary grinding and polishing tool characterized in that it is integrally implanted at the protruding portion on the polishing surface of cloth paper in a state in which a portion of the cloth paper is polymerized and arranged in the circumferential direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20335183A JPS6094271A (en) | 1983-10-29 | 1983-10-29 | Rotary grinding polishing tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20335183A JPS6094271A (en) | 1983-10-29 | 1983-10-29 | Rotary grinding polishing tool |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6094271A JPS6094271A (en) | 1985-05-27 |
| JPS6254632B2 true JPS6254632B2 (en) | 1987-11-16 |
Family
ID=16472589
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP20335183A Granted JPS6094271A (en) | 1983-10-29 | 1983-10-29 | Rotary grinding polishing tool |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6094271A (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0422923Y2 (en) * | 1985-09-02 | 1992-05-27 | ||
| JPS6416376A (en) * | 1987-07-11 | 1989-01-19 | Asahi Irryo Co Ltd | Rotary disk polishing tool |
| JPH045251Y2 (en) * | 1987-09-16 | 1992-02-14 | ||
| DE19812515A1 (en) * | 1998-03-21 | 1999-09-23 | M & F Entw & Patentverwertungs | Grinding tool with blades and symmetrical rotational axle |
| DE10042109C2 (en) * | 2000-08-28 | 2003-07-03 | M & F Entw & Patentverwertungs | polishing tool |
| US7056200B2 (en) * | 2001-09-04 | 2006-06-06 | 3M Innovative Properties Company | Quick change connector for grinding wheel |
| DE102010046878B3 (en) * | 2010-09-29 | 2011-12-15 | Dipl.-Ing. Günter Wendt GmbH | Flap tool |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58126166U (en) * | 1982-02-19 | 1983-08-27 | フコク株式会社 | Abrasive material |
-
1983
- 1983-10-29 JP JP20335183A patent/JPS6094271A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6094271A (en) | 1985-05-27 |
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