JPS6147669B2 - - Google Patents
Info
- Publication number
- JPS6147669B2 JPS6147669B2 JP56012084A JP1208481A JPS6147669B2 JP S6147669 B2 JPS6147669 B2 JP S6147669B2 JP 56012084 A JP56012084 A JP 56012084A JP 1208481 A JP1208481 A JP 1208481A JP S6147669 B2 JPS6147669 B2 JP S6147669B2
- Authority
- JP
- Japan
- Prior art keywords
- substrate
- blade
- inner peripheral
- peripheral edge
- outer peripheral
- 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
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
- B24D3/00—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents
- B24D3/02—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents the constituent being used as bonding agent
- B24D3/04—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents the constituent being used as bonding agent and being essentially inorganic
- B24D3/06—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents the constituent being used as bonding agent and being essentially inorganic metallic or mixture of metals with ceramic materials, e.g. hard metals, "cermets", cements
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Inorganic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Polishing Bodies And Polishing Tools (AREA)
Description
【発明の詳細な説明】
本発明はデイスク状回転砥石刃であつて内周縁
部分に刃先部をもつ内周刃に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an inner peripheral blade which is a disc-shaped rotary abrasive blade and has a cutting edge portion at the inner peripheral edge portion.
一般に、内周刃は、その外周縁部分に刃先部の
振れを防止するための一様な張力をかけつつこれ
を回転支持体に固定し、高速回転して内周縁部分
で被切削物を精密切断するものである。 In general, an inner peripheral cutter is fixed to a rotating support while applying uniform tension to its outer peripheral edge to prevent runout of the cutting edge, and rotates at high speed to accurately cut the workpiece with its inner peripheral edge. It is for cutting.
このような内周刃は、従来第１図および第２図
に示すように、ステンレスや鉄などの鋼板で作ら
れた円盤状の台座１の内周縁部分にメツキによつ
て砥粒層２を成長形成させて刃先部３としたもの
が一般的であつた。このため、刃先部３の刃厚t1
は砥粒層２の厚さt2，t2の他に台座１の厚さt3を
含むので、薄くしようとしても限度があり、せい
ぜい200〜300μｍであつてさらに薄い刃厚をもつ
た内周刃の実現は困難であつた。 Conventionally, as shown in FIGS. 1 and 2, such an internal peripheral cutter has an abrasive grain layer 2 formed by plating on the inner peripheral edge of a disc-shaped base 1 made of a steel plate such as stainless steel or iron. It was common to grow and form the cutting edge part 3. Therefore, the blade thickness t 1 of the cutting edge portion 3
includes the thickness t 3 of the pedestal 1 in addition to the thicknesses t 2 and t 2 of the abrasive grain layer 2, so there is a limit even if you try to make it thinner. It was difficult to realize the circumference blade.
また、台座を作るのに使用されるステンレスや
鉄などの鋼板は、通常圧延法で作られるため内面
強度に方向性を有している。このような台座を、
張力かけつつ回転支持体に固定すると、方向性か
らくる材質強度の不均一性から刃先部３の円形の
内縁が歪んで例えば楕円形となり、切断作用に悪
影響を及ぼすとともに切断精度を悪くしていた。 Furthermore, the steel plates used to make the pedestal, such as stainless steel and iron, are usually made by a rolling method, so they have a directional inner strength. A pedestal like this,
When fixed to a rotating support under tension, the circular inner edge of the cutting edge part 3 becomes distorted, for example, into an oval shape, due to non-uniformity in material strength due to directionality, which has a negative effect on cutting action and deteriorates cutting accuracy. .
また、内周刃を切削装置へ取付ける場合、内周
刃の外周縁部に取付部がないため、内周刃の中心
位置を正確に決めて取付けるための操作が煩雑で
あつた。 Furthermore, when attaching the inner circumferential cutter to a cutting device, since there is no attachment portion on the outer peripheral edge of the inner circumferential cutter, the operation for accurately determining the center position of the inner circumferential cutter and attaching it is complicated.
一方、特公昭49−6874には、刃先部、基板およ
び取付部をメツキ法による砥粒層で一体に形成し
て刃厚を薄くした薄型砥石が開示されているが、
これをたとえ内周刃に利用したとしても、基板に
砥粒が含まれているので、張力に対する内面強度
が弱くなり、切断精度の向上が図れず、しかもダ
イヤモンドやボラゾン等の高価な超砥粒が刃先部
以外にも必要となり高価になるという問題点があ
つた。 On the other hand, Japanese Patent Publication No. 49-6874 discloses a thin whetstone in which the blade edge, base plate, and mounting part are integrally formed with a layer of abrasive grains using the plating method to reduce the blade thickness.
Even if this is used for the inner circumferential cutter, since the substrate contains abrasive grains, the internal strength against tension will be weakened, making it impossible to improve cutting accuracy.Moreover, expensive superabrasives such as diamond or borazone are required. There was a problem in that it was required in areas other than the cutting edge, making it expensive.
また、実公昭49−39258には、第１図および第
２図に示した内周刃の外周縁部に、保持リングを
接着固定した取付部を形成した構造の内周刃が開
示されているが、この取付部は、基板の外周縁部
に、別体の保持リングを位置合わせしつつ接着剤
によつて張着固定し、接着剤乾燥後に外周縁の皺
になつた部分を切り落して形成しているので正確
に位置合わせして組立形成する操作が煩雑になる
という問題点があつた。 In addition, Japanese Utility Model Publication No. 49-39258 discloses an inner peripheral cutter having a structure in which a mounting portion to which a retaining ring is adhesively fixed is formed on the outer peripheral edge of the inner peripheral cutter shown in Figs. 1 and 2. However, this mounting part is formed by aligning and fixing a separate retaining ring to the outer peripheral edge of the board with adhesive, and cutting off the wrinkled part of the outer peripheral edge after the adhesive dries. Therefore, there was a problem in that the operations for accurately positioning and assembling and forming were complicated.
本発明は上述の点に鑑みなされたもので、可及
的に刃厚を薄くし、かつ切断精度を向上させ、さ
らに取付部の組立が簡単で、しかも安価な内周刃
を提供することを目的とするものである。この目
的を達成するため、刃先部と基板とを電気メツキ
で形成することにより刃先部の刃厚を可及的に薄
くし、基板の材質強度を方向に関係なく均一かつ
強固にし、さらに基板の外周縁部に形成する取付
部の組立を簡単にしたものである。 The present invention has been made in view of the above-mentioned points, and aims to provide an inner circumferential blade that has a blade thickness as thin as possible, improves cutting accuracy, has a mounting part that is easy to assemble, and is inexpensive. This is the purpose. To achieve this purpose, the blade edge and the substrate are formed by electroplating to make the blade thickness at the edge as thin as possible, the material strength of the substrate is uniform and strong regardless of the direction, and the thickness of the substrate is made as thin as possible. This simplifies the assembly of the mounting portion formed on the outer peripheral edge.
以下、本発明の実施例を図面に基づいて説明す
る。 Embodiments of the present invention will be described below based on the drawings.
第３図は本発明の一実施例を示すもので、この
図において、１４は、電気メツキによつて形成さ
れ、中央部に円孔５６のある金属製薄板円板状の
基板である。この基板１４の内周縁には、例えば
基板１４と略同一の厚さをもつ薄板環状の砥粒層
が電気メツキによつて一体に連設固着されて刃先
部１５が形成されている。前記基板１４の外周縁
部には、断面を略コ字状となるように折曲した折
返部１６が形成されている。この折返部１６の内
面には、環状体１７が挿着固定され、取付部１８
が形成される。この第３図に示す内周刃１３は、
例えば第４図に示す電気メツキ装置を用いて製造
される。この第４図において、１９はメツキ槽
で、このメツキ槽１９内には、ニツケルメツキ液
２０が満たされている。このニツケルメツキ液２
０中にはニツケル極板２１が設けられ、リード線
２２により陽極端子２３へつながれている。この
ニツケル極板２１の内側には、中央に短円柱状の
突出部２４を設けた絶縁器体２５が設けられてい
る。この絶縁器体２５の上面には、前記突出部２
４に係合する円孔２６を中央に形成した円盤状の
台座２７が設けられている。この台座２７の上面
は、予めラツピングで滑らかな平面に形成される
とともに脱脂洗浄される。前記台座２７はリード
線２８により陰極端子２９につながれ、その下面
には、外周縁部分以外をマスクするためのテープ
３０が貼着されている。前記台座２７の上面に
は、蓋体３１のある円筒体３２の中心軸上に円柱
体３３を一体に形成したプラスチツクの治具３４
が、その円柱体３３の端部を前記台座２７の円孔
２６に嵌合するようにして載置されている。前記
治具３４の蓋体３１には砥粒注入用の孔３５が穿
設され、前記円筒体３２の側面にはメツキ液２０
を通すための孔３６が穿設されている。 FIG. 3 shows an embodiment of the present invention. In this figure, 14 is a thin metal disk-shaped substrate formed by electroplating and having a circular hole 56 in the center. A cutting edge portion 15 is formed on the inner circumferential edge of the substrate 14 by, for example, a thin annular abrasive grain layer having approximately the same thickness as the substrate 14 and fixed integrally therewith by electroplating. A folded portion 16 is formed at the outer peripheral edge of the substrate 14 so as to have a substantially U-shaped cross section. An annular body 17 is inserted and fixed into the inner surface of this folded part 16, and a mounting part 18
is formed. The inner peripheral blade 13 shown in FIG.
For example, it is manufactured using an electroplating apparatus shown in FIG. In FIG. 4, numeral 19 is a plating tank, and the plating tank 19 is filled with a nickel plating liquid 20. This Nikkelmetsuki liquid 2
A nickel electrode plate 21 is provided inside the 0, and is connected to an anode terminal 23 by a lead wire 22. An insulator body 25 is provided inside the nickel electrode plate 21 and has a short cylindrical protrusion 24 in the center. The upper surface of this insulator body 25 has the protrusion 2
A disk-shaped pedestal 27 is provided, which has a circular hole 26 formed in the center to engage with the pedestal 4. The upper surface of the pedestal 27 is previously formed into a smooth flat surface by wrapping and is also degreased and cleaned. The pedestal 27 is connected to a cathode terminal 29 by a lead wire 28, and a tape 30 is attached to the lower surface of the pedestal 27 for masking areas other than the outer periphery. On the upper surface of the pedestal 27 is a plastic jig 34 that has a cylindrical body 33 integrally formed on the central axis of a cylindrical body 32 with a lid 31.
is mounted so that the end of the cylindrical body 33 fits into the circular hole 26 of the pedestal 27. A hole 35 for injecting abrasive grains is formed in the lid 31 of the jig 34, and a plating liquid 20 is provided on the side surface of the cylindrical body 32.
A hole 36 is bored through it.
以上のような構成で内周刃を製造するには、ま
ず通電する前に、治具３４の蓋体３１の孔３５か
ら所定量のダイヤモンドやボラゾン等の超砥粒を
注入して台座２７の中央部上面に環状の一様な砥
粒層３７を沈澱させる。このとき、振動を加えた
り、又は撹拌機などでメツキ液２０を撹拌して砥
粒層３７が一様な厚さに積層するようにする。つ
ぎに治具３４をメツキ液２０中から抜き出してか
ら、陽極端子２３と陰極端子２９に電源を接続し
て通電する。一定時間経過すると、第５図に示す
ように台座２７の上面には、環状の砥粒層３７部
分すなわち刃先部１５とニツケルの地金層部分す
なわち基板１４とが固着形成されるとともに、台
座２７の外周端および下面の外周縁部分にも折返
部１６としてのニツケルの地金層３８，３９が固
着形成される。つぎに、これをエツチング液に一
定時間浸漬して化学エツチングが行なわれ、第５
図の鎖線で示す部分４０を取り去ると、第３図に
示すような内周刃１３ができる。このエツチング
のとき、台座２７の外周端および下面外周縁部分
に固着形成された折返部１６としてのニツケルの
地金層３８，３９はマスクの役割をしているの
で、別個にマスクを設ける必要がなく操作が簡単
である。このようにして、刃厚t5の薄い内周刃が
得られ、しかも台座２７の外周縁部分すなわち環
状体１７は回転支持体への取付部１８として利用
できる。さらに、超砥粒は刃先の内周縁部分のみ
なので必要量最小限で済み安価となる。その上基
板１４は砥粒を含まないので内面強度に方向性が
ないのみならず張力に対する強度も強くなる。 To manufacture an inner peripheral blade with the above configuration, first, before applying electricity, a predetermined amount of superabrasive grains such as diamond or borazone are injected through the hole 35 of the lid 31 of the jig 34 to form the base 27. A uniform annular abrasive grain layer 37 is precipitated on the upper surface of the central portion. At this time, vibration is applied or the plating liquid 20 is stirred with a stirrer or the like so that the abrasive grain layer 37 is laminated to a uniform thickness. Next, the jig 34 is removed from the plating liquid 20, and then a power source is connected to the anode terminal 23 and the cathode terminal 29 to energize them. After a certain period of time has elapsed, as shown in FIG. Nickel bare metal layers 38 and 39 as folded portions 16 are also fixedly formed on the outer peripheral edge and the outer peripheral edge portion of the lower surface. Next, chemical etching is performed by immersing it in an etching solution for a certain period of time.
When the portion 40 indicated by the chain line in the figure is removed, the inner circumferential cutter 13 as shown in FIG. 3 is obtained. During this etching, the base metal layers 38 and 39 of nickel as the folded portions 16 fixedly formed on the outer peripheral edge and the outer peripheral edge of the lower surface of the pedestal 27 serve as a mask, so it is not necessary to provide a separate mask. Easy to operate. In this way, a thin inner peripheral blade with a blade thickness t 5 is obtained, and moreover, the outer peripheral edge portion of the base 27, that is, the annular body 17 can be used as the attachment portion 18 to the rotary support. Furthermore, since the superabrasive grains are only used at the inner peripheral edge of the cutting edge, the amount required is minimal and the cost is low. Moreover, since the substrate 14 does not contain abrasive grains, not only does the inner surface have no directionality, but its strength against tension is also strong.
本発明による内周刃は、上記のように、電気メ
ツキによつて形成され、中央部に円孔があり、外
周縁部分に断面がコ字状となるように折曲した折
返部を具備する薄い金属製円板状の基板と、この
基板の内周端面に連設するようにダイヤモンドや
ボラゾン等の超砥粒を電着形成した薄板環状の砥
粒層からなる刃先部と、前記基板の折返部の内面
に環状体を挿着して形成した取付部とで構成して
なることを特徴とする。このため、刃厚を可及的
に薄くして高精度の切断ができるとともに被切削
材の節約ができるだけでなく、刃先部と取付部を
連結する基板が電気メツキによつて形成され、し
かも超砥粒を含まないので、内面強度に方向性が
なく、かつ張力に対する強度が強い。したがつ
て、内周刃に張力をかけつつ高速回転しても刃先
部分が歪んで変形することがなく、切断精度の向
上を図ることができ、しかもダイヤモンドやブラ
ゾン等の高価な超砥粒が必要最小限の量で済み安
価となる。また内周刃は取付部を一体に具備して
いるので、内周刃の中心位置を正確に決めて装置
に装着する操作が簡単になり、しかも取付部は、
基板の外周縁部に一体に形成された断面コ字状の
折返部と、この折返部の内面に挿着形成された環
状体とからなるので、基板との位置合わせが正確
かつ簡単になり、組立が容易になる。 As described above, the inner peripheral blade according to the present invention is formed by electroplating, has a circular hole in the center, and has a folded part bent so that the cross section is U-shaped at the outer peripheral edge. A cutting edge portion consisting of a thin metal disc-shaped substrate, a thin annular abrasive layer formed by electrodepositing superabrasive grains such as diamond or borazone continuously on the inner peripheral end surface of the substrate, and a cutting edge portion of the substrate. It is characterized by comprising a mounting part formed by inserting an annular body into the inner surface of the folded part. For this reason, not only can the blade thickness be made as thin as possible to achieve high-precision cutting and save the material to be cut, but the board that connects the blade edge and the mounting part is formed by electroplating. Since it does not contain abrasive grains, the inner surface strength has no directionality and is strong against tension. Therefore, even if the inner peripheral blade is rotated at high speed while applying tension, the cutting edge part will not be distorted or deformed, and cutting accuracy can be improved. Moreover, expensive super abrasive grains such as diamond or Blazon can be used. It is inexpensive as only the minimum amount required is required. In addition, the inner blade has an integral mounting part, making it easy to accurately determine the center position of the inner blade and attach it to the device.
Consisting of a folded part with a U-shaped cross section integrally formed on the outer peripheral edge of the board and an annular body inserted and formed on the inner surface of this folded part, alignment with the board is accurate and easy. Assembly becomes easier.
第１図は従来の内周刃を示す正面図、第２図は
第１図のＡ−Ａ線断面図、第３図は本発明による
内周刃の一実施例を示す部分断面図、第４図は電
気メツキ装置の断面図、第５図は第３図に示す内
周刃の製造工程を示す部分断面図である。
１，２７……台座、２，３７……砥粒層、３，
１５……刃先部、１３……内周刃、１４……基
板、１６……折返部、１７……環状体、１８……
取付部、５６……円孔。
FIG. 1 is a front view showing a conventional inner peripheral blade, FIG. 2 is a sectional view taken along the line A-A in FIG. FIG. 4 is a sectional view of the electroplating device, and FIG. 5 is a partial sectional view showing the manufacturing process of the inner peripheral blade shown in FIG. 3. 1,27...pedestal, 2,37...abrasive grain layer, 3,
15...Blade tip portion, 13...Inner peripheral blade, 14...Substrate, 16...Folded portion, 17...Annular body, 18...
Mounting part, 56... circular hole.
Claims (1)
があり、外周縁部分に断面がコ字状となるように
折曲した折返部を具備する薄い金属製円板状の基
板と、この基板の内周端面に連設するようにダイ
ヤモンドやホラゾン等の超砥粒を電着形成した薄
板環状の砥粒層からなる刃先部と、前記基板の折
返部の内面に環状体を挿着して形成した取付部と
からなる内周刃。1. A thin metal disk-shaped substrate formed by electroplating and having a circular hole in the center and a folded part bent so that the cross section is U-shaped at the outer periphery, and this substrate. The cutting edge part consists of a thin plate annular abrasive grain layer on which superabrasive grains such as diamond or horazon are electrodeposited so as to be continuous with the inner circumferential end surface of the board, and an annular body is inserted into the inner surface of the folded part of the substrate. An inner peripheral blade consisting of a formed mounting part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1208481A JPS57127674A (en) | 1981-01-29 | 1981-01-29 | Internal peripheral blade edge manufacturing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1208481A JPS57127674A (en) | 1981-01-29 | 1981-01-29 | Internal peripheral blade edge manufacturing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57127674A JPS57127674A (en) | 1982-08-07 |
| JPS6147669B2 true JPS6147669B2 (en) | 1986-10-20 |
Family
ID=11795713
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1208481A Granted JPS57127674A (en) | 1981-01-29 | 1981-01-29 | Internal peripheral blade edge manufacturing method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57127674A (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01205981A (en) * | 1988-02-08 | 1989-08-18 | Disco Abrasive Syst Ltd | Internal peripheral blade and its manufacturing method |
| US6745479B2 (en) | 2000-10-17 | 2004-06-08 | Ronald S. Dirks | Chromium mounted diamond particle cutting tool or wear surface and method |
| CN108300983B (en) * | 2017-12-30 | 2020-04-10 | 苏州赛尔科技有限公司 | High-energy-efficiency hub type nickel-based blade and preparation method thereof |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3755706A (en) * | 1972-03-20 | 1973-08-28 | Varian Associates | Miniaturized traveling wave tube |
| JPS5340940Y2 (en) * | 1972-07-04 | 1978-10-03 |
-
1981
- 1981-01-29 JP JP1208481A patent/JPS57127674A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS57127674A (en) | 1982-08-07 |
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