JPH08108370A - Grinding tool - Google Patents
Grinding toolInfo
- Publication number
- JPH08108370A JPH08108370A JP26834094A JP26834094A JPH08108370A JP H08108370 A JPH08108370 A JP H08108370A JP 26834094 A JP26834094 A JP 26834094A JP 26834094 A JP26834094 A JP 26834094A JP H08108370 A JPH08108370 A JP H08108370A
- Authority
- JP
- Japan
- Prior art keywords
- grinding
- synthetic resin
- polishing
- rotary shaft
- grinding tool
- 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)
- Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、歯科技工又は貴金属加
工用で高速回転する回転軸の先端に研磨部を設けた研削
工具に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a grinding tool having a polishing portion at the tip of a rotating shaft which rotates at high speed for dental technique or precious metal processing.
【０００２】[0002]
【従来の技術】従来、かかる研削工具ａはステンレス等
の金属製の回転軸ｂの先端に、カーボランダム等の研削
材ｃを基材のシリコーンゴム（Silicone rubber）ｄに
配合した研磨部ｅを設けていた。2. Description of the Related Art Conventionally, such a grinding tool a has a polishing portion e formed by mixing a grinding material c such as carborundum with a base material silicone rubber d at the tip of a rotary shaft b made of metal such as stainless steel. It was provided.
【０００３】上記の様に、研削工具ａの回転軸ｂと研磨
部ｅの材質は、金属製とシリコーンゴム製等で相違する
ために、回転軸ｂと研磨部ｅを夫々別材質で個別に製造
し、回転軸ｂの先端に接着性向上用のローレット加工を
施すと共に、研磨部ｅの下端に穿孔を行った後、回転軸
ｂを挿入し接着剤等で接着固定していたので、研削工具
ａの製造に手間を要する欠点を有していた。As described above, since the materials of the rotary shaft b and the polishing portion e of the grinding tool a are different between metal and silicone rubber, the rotary shaft b and the polishing portion e are separately made of different materials. After manufacturing, knurling was applied to the tip of the rotating shaft b to improve the adhesiveness, and after drilling the lower end of the polishing part e, the rotating shaft b was inserted and fixed with an adhesive or the like. It has a drawback that the manufacturing of the tool a is troublesome.
【０００４】尚、研削工具ａはその回転軸ｂを歯科技工
用電気エンジン、又は貴金属加工用の回転駆動機の先端
に取り付けて毎分数万回転で高速回転し、研磨部ｅを被
研削物品に押圧して被研削物品を研削、研磨加工してい
たので、被研削物品に対する研磨部ｅの押圧力並びに研
削工具ａの高速回転を必要とするために、回転軸ｂには
所定の強度を必要とするために回転軸ｂは金属製と成し
ていた。Incidentally, the grinding tool a has its rotating shaft b attached to the tip of an electric engine for dental technology or a rotary driving machine for processing precious metals, and rotates at a high speed of tens of thousands of revolutions per minute to polish the polishing portion e into an article to be ground. Since the article to be ground is ground and polished by being pressed against, the rotating shaft b is required to have a predetermined strength in order to press the polishing portion e against the article to be ground and to rotate the grinding tool a at high speed. The rotating shaft b was made of metal because it was necessary.
【０００５】又、研磨部ｅはシリコーンゴムｄを基材と
して研削材ｃを混合したものと成していたために、その
材質特性から柔らかいために、早く減ったり、折れた
り、割れたりする欠点、及び二次的には研磨部ｅから分
離した研削材ｃが単独で、或いは分断された研磨部ｅ塊
片の研削材ｃが被研削物品を損傷させたり、研磨部ｅの
滅失、損壊により回転軸ｂの先端が被研削物品に直接接
触して損傷させたり、荒仕上げ時にはまだしも、研磨時
に際して、研磨部ｅの損壊が危惧される研削工具ａを事
前に新品のものにせねばならない欠点を有していた。Further, since the polishing portion e is made of a mixture of the abrasive material c with the silicone rubber d as a base material, it is soft due to its material characteristics, and therefore it is reduced in number quickly, and is broken or cracked. And, secondly, the abrasive material c separated from the polishing portion e is singly or the abrasive material c of the divided abrasive portion e breaks the article to be ground, or the abrasive portion e is rotated due to loss or damage. The tip of the shaft b has a drawback in that it directly contacts the article to be ground and damages it, or even during rough finishing, the grinding tool a must be made a new one in advance during polishing, which may damage the polishing part e. Was there.
【０００６】上記欠点の詳細においては、研磨部ｅの基
材であるシリコーンゴムｄは弾性固体でゴム状弾性体で
あり、ゴム分子が常温において熱運動が活発であるため
に、且つ高分子間の相互作用が弱くて夫々の高分子はあ
る程度、周囲から拘束されず運動しているために、柔ら
かく上記欠点を有していた。In the details of the above-mentioned drawbacks, the silicone rubber d, which is the base material of the polishing portion e, is an elastic solid and a rubber-like elastic body. Since each of the polymers has a weak interaction and moves to some extent without being constrained from the surroundings, it is soft and has the above-mentioned drawbacks.
【０００７】又、シリコーンゴムｄの高分子は細くて長
く相互にからみ合うと共に、加硫操作して分子間を架橋
させた三次元網目鎖を形成してゴム弾性体と成している
ために、単にシリコーンゴムｄに混合された研削材ｃが
単独で分離することがあったり、研磨部ｅが部分的に分
断されて塊片が発生していた。Further, since the polymer of the silicone rubber d is thin and long and entangles with each other, a vulcanization operation is performed to form a three-dimensional network chain in which the molecules are cross-linked to form a rubber elastic body. In some cases, the abrasive material c simply mixed with the silicone rubber d may be separated alone, or the polishing portion e may be partially divided to generate a lump.
【０００８】[0008]
【発明が解決しようとする課題】本発明は、研削、研磨
加工に必要とする所定の回転力及び押圧力に耐える強度
を持たせ、製造簡易にして研磨部の寿命を向上させると
共に、被研削物品への損傷を防止し、加工作業を容易に
する様にした研削工具を提供せんとするものである。SUMMARY OF THE INVENTION The present invention has strength to withstand a predetermined rotational force and pressing force required for grinding and polishing, simplifies manufacturing, and improves the life of a polishing section, and at the same time, grinds a workpiece to be ground. An object of the present invention is to provide a grinding tool which prevents damage to an article and facilitates a working operation.
【０００９】[0009]
【課題を解決するための手段】本発明は、上記従来技術
に基づく、回転軸と研磨部が別材質で製造に手間を要す
る課題、及び研磨部が早く摩耗したり、研磨部の摩耗に
より回転軸で被研削物品を損傷させる課題に鑑み、材質
を合成樹脂にガラス繊維及び研削材を混合したもので、
回転軸と研磨部を同一材質で一体成形することによっ
て、１度の成形作業で研削工具を製造し、又合成樹脂の
材質特性及びガラス繊維を混入したことで回転軸の強度
を向上させると共に、研磨部の摩耗を減少し、更に回転
軸が研磨部と同一材質で被研削物品の損傷を防止する様
にして、上記課題を解決せんとしたものである。SUMMARY OF THE INVENTION The present invention is based on the above-mentioned conventional technique and requires a lot of time to manufacture because the rotary shaft and the polishing part are made of different materials, and the polishing part is quickly worn or rotated due to wear of the polishing part. In view of the problem of damaging the article to be ground by the shaft, the material is a synthetic resin mixed with glass fiber and an abrasive,
By integrally molding the rotary shaft and the polishing part with the same material, a grinding tool can be manufactured in one molding operation, and the strength of the rotary shaft is improved by mixing the material characteristics of synthetic resin and glass fiber, The object of the present invention is to solve the above-mentioned problems by reducing the abrasion of the polishing portion and preventing the article to be ground from being damaged by the rotating shaft made of the same material as that of the polishing portion.
【００１０】[0010]
【実施例】以下本発明の一実施例を図面に基づいて説明
すると、１は本発明に係る研削工具であり、該研削工具
１は携帯用又は卓上用等の回転駆動機械（図示せず）の
回転部先端に取り付けて、歯科補綴物又は貴金属等を研
削、研磨加工するものであり、かかる研削工具１は棒状
の回転軸２の先端に各種形状の研磨部３を設けている。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will now be described with reference to the drawings, in which 1 is a grinding tool according to the present invention, and the grinding tool 1 is a rotary drive machine (not shown) for portable use or tabletop use. The grinding tool 1 is attached to the tip of the rotating part to grind and polish a dental prosthesis or a noble metal. The grinding tool 1 has a rod-shaped rotating shaft 2 provided with a polishing part 3 of various shapes.
【００１１】そして、回転軸２及び該回転軸２の先端に
設けた研磨部３は、両者を同一材質と成して一体成形し
ており、その材質としてはエポキシ樹脂等の合成樹脂
（plastic）４にカーボランダム、アランダム、アルミ
ナ、ダイヤモンド粉末等の研削砥粒から成る研削材５を
混合したものと成している。The rotary shaft 2 and the polishing portion 3 provided at the tip of the rotary shaft 2 are made of the same material and are integrally molded. The material is a synthetic resin such as epoxy resin. 4 is mixed with an abrasive 5 made of abrasive grains such as carborundum, alundum, alumina, diamond powder and the like.
【００１２】尚、研削材５を混合する合成樹脂４の種類
としては、エポキシ樹脂の他、ポリプロピレン、ナイロ
ン６、ポリアセタール、ポリカーボネート、シリコーン
樹脂、ＦＲＰ（合成樹脂４とガラス繊維の複合材料）、
その他の合成樹脂、或いはガラス繊維、カーボン繊維、
アスベスト、炭酸カルシウム等の各種無機質充填材６を
配合した合成樹脂等の合成樹脂４に研削材５を混合する
ものが可能であり、合成樹脂４の種類の条件としては、
研削、研磨加工時の回転力及び押圧力に所定の強度を有
したものが選択される。The types of the synthetic resin 4 with which the abrasive 5 is mixed include epoxy resin, polypropylene, nylon 6, polyacetal, polycarbonate, silicone resin, FRP (composite material of synthetic resin 4 and glass fiber),
Other synthetic resin, glass fiber, carbon fiber,
It is possible to mix the abrasive 5 with a synthetic resin 4 such as a synthetic resin containing various inorganic fillers 6 such as asbestos and calcium carbonate. The conditions for the type of the synthetic resin 4 are as follows.
A material having a predetermined strength for the rotating force and the pressing force at the time of grinding and polishing is selected.
【００１３】例えば、上記した合成樹脂の様なエンジニ
アリングプラスチックと称されるものが適当であり、又
従来のシリコーンゴムは原料ゴムの塑性変形後に、加硫
操作で弾性変形力を付与したことに対し、本発明の合成
樹脂４は最終状態が一定強度で所望形状の固体に成形さ
れ、成形物になる迄に流れ（flow）又は可塑性（plasti
city）を有したものがある。For example, what is called an engineering plastic such as the above-mentioned synthetic resin is suitable, and in the conventional silicone rubber, elastic deformation force is applied by vulcanization operation after plastic deformation of the raw material rubber. In the final state, the synthetic resin 4 of the present invention is molded into a solid of a desired shape with a constant strength, and it flows or is plastic (plasti) until it becomes a molded product.
Some have a city).
【００１４】例えば、上記ポリプロピレン、ナイロン
６、ポリアセタール、ポリカーボネートの様な熱可塑性
樹脂は、加熱により可塑性の流れ（plastic flow）を有
して軟かくした後、成形冷却後、所定形状に固化したも
の、上記エポキシ樹脂、シリコーン樹脂の様な熱硬化性
樹脂は、加熱により化学反応を行って巨大な高分子に成
長させ、高分子が硬化に直結し、非軟化性を有したもの
に大別出来、いずれにしても、最終状態では所定形状の
固体物である。For example, a thermoplastic resin such as polypropylene, nylon 6, polyacetal, or polycarbonate, which has a plastic flow by heating to be softened, is molded and cooled, and then solidified into a predetermined shape. , The thermosetting resins such as the epoxy resin and the silicone resin described above can be roughly classified into those having a non-softening property, which causes a chemical reaction by heating to grow into a huge polymer and the polymer is directly connected to the curing. In any case, in the final state, it is a solid material having a predetermined shape.
【００１５】次に本発明に係る研削工具を回転駆動機に
取り付けて研磨する時の作用について説明すると、基材
を合成樹脂４と成した回転軸２、或いは合成樹脂４にガ
ラス繊維等の充填材６を混合した回転軸２は、被研削物
品に研削工具１の研磨部３を押圧した状態で、高速回転
しても歪むことが少なく充分な強度及び押圧力を有す
る。Next, the operation when the grinding tool according to the present invention is attached to a rotary driving machine for polishing will be described. The rotary shaft 2 whose base material is a synthetic resin 4, or the synthetic resin 4 is filled with glass fiber or the like. The rotating shaft 2 mixed with the material 6 has sufficient strength and pressing force without being distorted even when rotated at a high speed in a state where the polishing portion 3 of the grinding tool 1 is pressed against the article to be ground.
【００１６】そして、研磨部３の被研削物品への押圧回
転により、研磨部３に配合された研削材５で被研削物品
を研削、研磨加工し、研磨部３の合成樹脂４に配合され
た研削材５の形態において、合成樹脂４の分子は相互に
強く引っ張り合って強度を有すると共に、合成樹脂４と
研削材５の関係においても同様な引っ張り作用が想定さ
れて、研削材５は合成樹脂４の分子と強固に結合状態と
なっており、研削、研磨加工時に研削材５の脱落、或い
は研磨部３の摩耗が減少する。Then, the article to be ground is ground and polished with the abrasive material 5 mixed in the polishing section 3 by pressing and rotating the polishing section 3 against the article to be ground, and is mixed with the synthetic resin 4 in the polishing section 3. In the form of the abrasive material 5, the molecules of the synthetic resin 4 strongly pull each other to have strength, and a similar pulling action is assumed in the relationship between the synthetic resin 4 and the abrasive material 5. 4 is firmly bonded to the molecules of No. 4 and the abrasive material 5 is removed during grinding and polishing, or the abrasion of the polishing section 3 is reduced.
【００１７】又、研磨部３もガラス繊維等の充填材６を
混合したことにより、研磨部３の強度、結合度が向上し
て研磨部３の摩耗が減少すると共に、研磨部３の損壊及
び塊片の発生を防止する。Also, by mixing the polishing portion 3 with the filler 6 such as glass fiber, the strength and the degree of bonding of the polishing portion 3 are improved to reduce the abrasion of the polishing portion 3, and the damage and damage of the polishing portion 3 are caused. Prevent the generation of lumps.
【００１８】[0018]
【発明の効果】要するに本発明は、回転軸２の先端に研
磨部３を設けた研削工具１において、回転軸２と研磨部
３を同一材質で一体成形したので、従来の様に両者を別
々に製造した後、接着する作業が全く不要で、１度の成
形作業で研削工具１を製造することが出来てコストダウ
ンを図ることが出来、又長時間の研削、研磨作業によ
り、研磨部３が摩耗した時には、回転軸２と研磨部３は
同一材質であるために、従来の金属製の回転軸の時に被
研削物品を損傷させる様な事故を防止することが出来、
且つ回転軸２が研磨部３と同様の研削、研磨加工性能を
有していることにより、研磨部３が磨滅した後も回転軸
２を細かい部分の研削工具１として使用することも出来
る。In summary, according to the present invention, in the grinding tool 1 in which the polishing portion 3 is provided at the tip of the rotating shaft 2, the rotating shaft 2 and the polishing portion 3 are integrally formed of the same material, so that they are separated from each other as in the conventional case. After manufacturing, the grinding tool 1 can be manufactured by a single molding operation, and the cost can be reduced, and the polishing section 3 can be manufactured by a long-time grinding and polishing operation. Since the rotary shaft 2 and the polishing portion 3 are made of the same material when the wear occurs, it is possible to prevent an accident such as damage to the article to be ground when using the conventional metal rotary shaft.
Further, since the rotary shaft 2 has the same grinding and polishing performance as the polishing unit 3, the rotary shaft 2 can be used as the grinding tool 1 for a fine portion even after the polishing unit 3 is worn.
【００１９】又、回転軸２と研磨部３の材質を合成樹脂
４に研削材５を混合した材質と成したので、合成樹脂４
の分子結合組織で回転軸２の強度を充分に確保して必要
な押圧力及び回転力で被研削物品を研削、研磨加工する
ことが出来、又研削材５は合成樹脂４の分子に強固に引
っ張り結合されて、研削材５が研磨部３から離脱しなか
ったり、研磨部３の損壊による塊片が発生せず、被研削
物品の損傷を防止出来、又研削材５の離脱及び研磨部３
の摩耗を減少させることにより、粉塵の発生を防止し
て、作業環境を良好にすることが出来、又合成樹脂４は
弾性を有していないために、研磨部３のドレスアップに
際して、金属製等の高強度のドレッサーで簡単にドレス
アップすることが出来る。Further, since the rotary shaft 2 and the polishing portion 3 are made of a material in which the abrasive 5 is mixed with the synthetic resin 4, the synthetic resin 4 is used.
With the molecular connective structure, the strength of the rotating shaft 2 can be sufficiently secured, and the article to be ground can be ground and polished with a necessary pressing force and rotating force, and the abrasive 5 can be firmly bonded to the molecules of the synthetic resin 4. The abrasive material 5 is not pulled away from the polishing portion 3 by being pulled and joined, and no lumps due to damage of the polishing portion 3 are generated so that damage to the article to be ground can be prevented, and the removal of the abrasive material 5 and the polishing portion 3 are prevented.
By reducing the wear of the, the generation of dust can be prevented and the working environment can be improved, and since the synthetic resin 4 does not have elasticity, when the polishing part 3 is dressed up, it is made of metal. You can easily dress up with a high-strength dresser.
【００２０】又、合成樹脂４にガラス繊維等の充填材６
及び研削材５を混合した材質と成したので、ガラス繊維
等の充填材６の混合で回転軸２の強度が更に上がり、被
研削物品に研削工具１を所定押圧力で押圧して研磨する
ことが出来、又ガラス繊維等の充填材６を混入した研磨
部３は、合成樹脂４単独のものより更に結合力又は強度
が増加して摩耗が減少し、研削工具１を長期間使用する
ことが出来、経済性を向上出来る等その実用的効果甚だ
大なるものである。Further, the synthetic resin 4 is filled with a filler 6 such as glass fiber.
Since the grinding material 5 and the grinding material 5 are mixed, the strength of the rotating shaft 2 is further increased by mixing the filling material 6 such as glass fiber, and the grinding tool 1 is pressed against the article to be ground with a predetermined pressing force to polish the article. In addition, the polishing portion 3 in which the filler 6 such as glass fiber is mixed has a higher binding force or strength than the synthetic resin 4 alone and wear is reduced, and the grinding tool 1 can be used for a long time. It can be done and the economic efficiency is greatly improved.
【図１】本発明に係る研削工具の拡大断面図である。FIG. 1 is an enlarged sectional view of a grinding tool according to the present invention.
【図２】各種形状例を示す研削工具の正面図である。FIG. 2 is a front view of a grinding tool showing various shape examples.
【図３】従来の研削工具の拡大断面図である。FIG. 3 is an enlarged sectional view of a conventional grinding tool.
１ 研削工具 ２ 回転軸 ３ 研磨部 ４ 合成樹脂 ５ 研削材 ６ 充填材 1 Grinding tool 2 Rotating shaft 3 Polishing part 4 Synthetic resin 5 Grinding material 6 Filling material
Claims (2)
において、回転軸と研磨部を同一材質で一体成形すると
共に、その材質を合成樹脂に研削材を混合した材質と成
したことを特徴とする研削工具。1. A grinding tool having a polishing part at the tip of a rotary shaft, wherein the rotary shaft and the polishing part are integrally molded of the same material, and the material is a mixture of synthetic resin and abrasive material. A characteristic grinding tool.
削材を混合した材質と成したことを特徴とする請求項１
の研削工具。2. A material obtained by mixing a synthetic resin with a filler such as glass fiber and an abrasive.
Grinding tools.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6268340A JP3038294B2 (en) | 1994-10-05 | 1994-10-05 | Grinding tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6268340A JP3038294B2 (en) | 1994-10-05 | 1994-10-05 | Grinding tool |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH08108370A true JPH08108370A (en) | 1996-04-30 |
| JP3038294B2 JP3038294B2 (en) | 2000-05-08 |
Family
ID=17457189
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6268340A Expired - Fee Related JP3038294B2 (en) | 1994-10-05 | 1994-10-05 | Grinding tool |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3038294B2 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007319947A (en) * | 2006-05-30 | 2007-12-13 | Pentax Corp | Polisher, method for manufacturing its rodlike polisher body, and polishing apparatus |
| US20150111475A1 (en) * | 2013-10-17 | 2015-04-23 | Richard C. Raczuk | Hand operated surfacing tool |
| CN105563350A (en) * | 2015-12-22 | 2016-05-11 | 北京保利世达科技有限公司 | Rubber grinding head for dentistry polishing and manufacturing method and application of rubber grinding head |
| KR20190024029A (en) * | 2017-08-31 | 2019-03-08 | 한국광기술원 | Ultra-precision gringding tool |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014171855A (en) * | 2013-03-06 | 2014-09-22 | Terutaka Fujiwara | Toilet sheet with skirt for preventing dirt from adhering to finger and clothing |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0219468U (en) * | 1988-07-20 | 1990-02-08 | ||
| JPH03161274A (en) * | 1989-11-16 | 1991-07-11 | Mitsui Petrochem Ind Ltd | Grinding material, manufacture thereof and grinding roll |
-
1994
- 1994-10-05 JP JP6268340A patent/JP3038294B2/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0219468U (en) * | 1988-07-20 | 1990-02-08 | ||
| JPH03161274A (en) * | 1989-11-16 | 1991-07-11 | Mitsui Petrochem Ind Ltd | Grinding material, manufacture thereof and grinding roll |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007319947A (en) * | 2006-05-30 | 2007-12-13 | Pentax Corp | Polisher, method for manufacturing its rodlike polisher body, and polishing apparatus |
| US20150111475A1 (en) * | 2013-10-17 | 2015-04-23 | Richard C. Raczuk | Hand operated surfacing tool |
| US9943942B2 (en) * | 2013-10-17 | 2018-04-17 | Richard C. Raczuk | Hand operated surfacing tool |
| CN105563350A (en) * | 2015-12-22 | 2016-05-11 | 北京保利世达科技有限公司 | Rubber grinding head for dentistry polishing and manufacturing method and application of rubber grinding head |
| KR20190024029A (en) * | 2017-08-31 | 2019-03-08 | 한국광기술원 | Ultra-precision gringding tool |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3038294B2 (en) | 2000-05-08 |
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