JPH0659578B2 - Ring cutter - Google Patents
Ring cutterInfo
- Publication number
- JPH0659578B2 JPH0659578B2 JP60069618A JP6961885A JPH0659578B2 JP H0659578 B2 JPH0659578 B2 JP H0659578B2 JP 60069618 A JP60069618 A JP 60069618A JP 6961885 A JP6961885 A JP 6961885A JP H0659578 B2 JPH0659578 B2 JP H0659578B2
- Authority
- JP
- Japan
- Prior art keywords
- base material
- shaving
- annular
- shank
- joining
- 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 - Fee Related
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B51/00—Tools for drilling machines
- B23B51/04—Drills for trepanning
- B23B51/0473—Details about the connection between the driven shaft and the tubular cutting part; Arbors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
- B23P15/28—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass cutting tools
- B23P15/34—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass cutting tools milling cutters
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Drilling Tools (AREA)
Description
【発明の詳細な説明】 〈産業上の利用分野〉 この発明は中心部を切削しないで環状の孔を穿つことに
より貫通孔を穿設するのに使用する環状カッターの新規
な構造に関するものである。Description: TECHNICAL FIELD The present invention relates to a novel structure of an annular cutter used for forming a through hole by forming an annular hole without cutting the central portion. .
〈従来の技術〉 貫通孔を加工するための環状カッターには１例として、
第６図に示すようなものが知られている。<Prior Art> As an example of an annular cutter for processing a through hole,
The one shown in FIG. 6 is known.
この種の環状カッターには高価な高速度工具鋼材が用い
られているが、この場合、中実の工具鋼材（母材）の中
心をくり抜いて円筒状に形成されているために、この環
状カッターは製造工程において母材の２／３程度が切粉
となり、きわめて不経済であった。しかも上記のような
加工は工数を増やす原因にもなり、生産コストが昂騰す
るおそれがある。Expensive high-speed tool steel is used for this type of circular cutter, but in this case, the circular cutter is formed by hollowing out the center of the solid tool steel (base material). In the manufacturing process, about 2/3 of the base material became chips, which was extremely uneconomical. Moreover, the above-mentioned processing also causes an increase in man-hours, and there is a risk that the production cost will rise.
そこで、先端の刃物部に高速度工具鋼のパイプ材を使用
し、シャンク部には別の材料を使用して、両者をシーム
溶接で継いだり、先端刃物部に高速度工具鋼材を使用
し、シャンク部に当該刃物部と性質の似ている安いダイ
ス鋼などを用いて両者を摩擦溶接で継いだりすることが
考えられるが、異質の材料を継いで環状カッターに形成
すると、コストの低減を図ることは可能でも、焼入れ条
件の異なる刃物部とシャンク部を溶接した後に焼入れし
なければならず、刃物部とシャンク部との接合部が破損
する等の事故がしばしば起こり、問題となっていた。Therefore, using a high-speed tool steel pipe material for the tip blade part, using a different material for the shank part, joining both by seam welding, using a high-speed tool steel material for the tip blade part, It is conceivable that the shank part can be joined by friction welding using cheap die steel that has similar properties to the blade part, but if different materials are joined to form an annular cutter, cost reduction will be achieved. Although it is possible, it is necessary to weld the blade and shank under different quenching conditions and then to quench, which often causes an accident such as breakage of the joint between the blade and the shank, which has been a problem.
〈発明が解決しようとする問題点〉 本発明は従来の環状カッターが様々な問題点を有してい
る点に鑑み、先端刃物部とシャンク部との接合強度を極
めて強力なものとし、あわせて材料費の大巾な節約と量
産化を図ることを解決課題とするものである。<Problems to be solved by the invention> In view of the fact that the conventional annular cutter has various problems, the present invention makes the joining strength between the tip blade portion and the shank portion extremely strong, and It is a problem to be solved that the material cost is greatly saved and mass production is achieved.
〈問題点を解決するための手段〉 環状刃物部の材料として高速度工具鋼材を、またシャン
ク部の材料としてクロムモリブデン鋼等の安価な材料を
夫々使用し、両者を別々に予め熱処理および所要の加工
をしたものをシェービング接合法によって一体に接合
し、特に、両者の相互接合されるシェービング接合部の
いずれか一方に段部を介して円周溝を設け、シェービン
グ接合時、両部材の一方の削られた部材がこの円周溝に
流れ込むようにして充填されて、より強固な接合が確保
されるようにしたことを特徴とするもので、刃付け（研
磨）はシェービング接合後に行う。<Means for solving the problem> A high speed tool steel material is used as the material of the annular blade portion, and an inexpensive material such as chrome molybdenum steel is used as the material of the shank portion. The processed one is integrally joined by a shaving joining method, and in particular, one of both members is mutually joined by providing a circumferential groove with a stepped portion on one of the two shaving joining portions. It is characterized in that the scraped member is filled so as to flow into the circumferential groove so as to secure a stronger joint, and the blade attachment (polishing) is performed after the shaving joint.
〈実施例〉 第１図、第２図は本発明に係る環状カッターの１例を示
したもので、環状刃物部１とシャンク部２は異質の材料
が使用され、環状刃物部１には高速度工具鋼の円筒母材
１′が、シャンク部２には同母材１′より小径のクロム
モリブデン鋼の円筒母材２′が用いられ、両者１，２は
符号３で示す部分でいわゆるシェービング接合で一体に
接合されている。<Example> FIGS. 1 and 2 show an example of an annular cutter according to the present invention. Different materials are used for the annular blade portion 1 and the shank portion 2, and the annular blade portion 1 is made of a high material. A cylindrical base material 1'of speed tool steel and a chrome molybdenum steel cylindrical base material 2'having a smaller diameter than that of the base material 1'are used for the shank portion 2, and both 1 and 2 are so-called shaving parts at a portion indicated by reference numeral 3. It is joined together by joining.
なお、環状刃物部母材１′としては高速度工具鋼のほか
にセラミックスも用いられるが、母材１′が工具鋼であ
る場合は刃形付や切粉排出用溝付は下記シェービング接
合前に行われていることが望ましい。In addition to the high speed tool steel, ceramics are also used as the base material 1'of the annular blade portion, but when the base material 1'is tool steel, the blade shape and the groove for discharging chips are as shown below. It is desirable to be done in.
因にシェービング接合法とは、加熱基材の孔に異質材を
プレスで押込むことにより基材と異質材とを接合する方
法で、その基本手順は次の１）〜４）からなっている。By the way, the shaving joining method is a method of joining a base material and a foreign material by pressing a foreign material into a hole of a heating base material by a press, and its basic procedure is composed of the following 1) to 4). .
１）基材に、機械加工その他の方法で下穴を開けてお
く。２）その穴縁を、例えば高周波誘導加熱法等で局部
加熱する。これは穴縁を軟化させると同時に、穴を熱膨
張させるためである。しかし、この局部加熱は必ずしも
不可欠の条件というわけではない。３）その穴に、接合
しようとする異質材を合わせて、軸心方向からプレスす
る。このとき、異質材の縁の鋭い隅角により、加熱され
た穴縁がシェービング（軽い切削）される。４）所定の
深さまで穴の内面をシェービングした時点で、プレスを
除荷して接合作業を終え、基材の穴に異質材がそのまゝ
嵌め込まれて残る。1) Prepare a pre-drilled hole in the substrate by machining or other method. 2) The hole edge is locally heated by, for example, a high frequency induction heating method. This is for softening the edge of the hole and at the same time thermally expanding the hole. However, this local heating is not always an essential condition. 3) Align the foreign material to be joined with the hole and press from the axial direction. At this time, the heated hole edge is shaving (light cutting) due to the sharp corner angle of the edge of the foreign material. 4) When the inner surface of the hole is shaving to a predetermined depth, the press is unloaded and the joining work is completed, and the foreign material remains in the hole of the base material as it is.
予め刃形付加工もしくは超硬チップ付や切粉排出用溝付
加工などした環状刃物部母材１′の上端部（第３図）
は、同図に示す如く、一定ピッチで溝４が放射状に設け
られ、同部母材１′の内周面にはシェービングに相当す
る深さの抜止用の環状溝５が予め形成されている。ま
た、環状刃物部母材１′の上端部の内径とシャンク部母
材２′の外径との間には、シェービング代Ａがある。た
だし、Ａは約０．６〜１ｍｍである。The upper end of the base material 1'of the annular cutting tool that has been pre-machined with a blade shape, or with a carbide tip or a groove for discharging chips (Fig. 3)
As shown in the figure, grooves 4 are radially provided at a constant pitch, and an annular groove 5 for preventing slip-out having a depth corresponding to shaving is previously formed on the inner peripheral surface of the base material 1'of the part. . Further, there is a shaving margin A between the inner diameter of the upper end portion of the annular blade portion base material 1'and the outer diameter of the shank portion base material 2 '. However, A is about 0.6 to 1 mm.
上記母材１′と母材２′は予め熱処理されている。The base material 1'and the base material 2'have been heat treated in advance.
第５図は環状刃物部母材１′とシャンク部母材２′とを
シェービング接合するための装置の要部を示したもの
で、７は環状刃物部母材１′を載せるテーブル、８はテ
ーブル７上に突設したセンター突起で、この突起８に環
状刃物部母材１′を先ず嵌め込み、次いで同母材１′の
上面にシャンク部母材２′を載せる。この状態では、先
に述べた如く、シェービング代Ａが存在するので、環状
刃物部母材１′上にシャンク部母材２′は載置されるの
みで未だ両者は嵌合していない。FIG. 5 shows a main part of an apparatus for shaving and joining the annular blade portion base material 1'and the shank portion base material 2 ', 7 is a table on which the annular blade portion base material 1'is placed, and 8 is a table. With the center protrusion protruding on the table 7, the annular blade portion base material 1'is first fitted into this protrusion 8 and then the shank portion base material 2'is placed on the upper surface of the base material 1 '. In this state, as described above, since the shaving margin A exists, only the shank portion base material 2'is placed on the annular blade portion base material 1 ', and both are not yet fitted.
母材１′，２′の接合予定部分をたとえば高周波誘導加
熱装置６で所要温度に局部加熱する。次に、環状刃物部
母材１′とその上面に載せたシャンク部母材２′との回
りをシェービング接合用ダイス９で囲繞する。つづい
て、プレス機を起動し、ラム１０でシャンク部母材２′
を上方から軸心方向に押圧すると、シャンク部母材２′
の下部が環状刃物部母材１′中に強制的に押し込まれ、
このシャンク部母材２′のシェービング代Ａの部分が削
られ、これが環状刃物部母材１′の上端部に設けた放射
溝４及び内周面に設けた環状溝５内に充填されて一体と
なり、両者１′，２′はシェービング接合される。な
お、母材１′，２′の局部加熱は直接通電加熱や赤外線
等による輻射加熱によっても、あるいは電気炉内で移送
させながら行ってもよいが、環状刃物部母材１′側をシ
ャンク部母材２′側より若干高目にするとシェービング
接合は強固になる。The parts to be joined of the base materials 1'and 2'are locally heated to a required temperature by, for example, a high frequency induction heating device 6. Next, the shaving joining die 9 is surrounded around the annular blade portion base material 1'and the shank portion base material 2'mounted on the upper surface thereof. Subsequently, the press machine was started, and the shank base material 2'was operated by the ram 10.
Is pressed in the axial direction from above, the shank base material 2 '
The lower part of the forcibly pushed into the base material 1'of the circular blade part,
The shaving margin A of the shank portion base material 2'is cut away, and the shaving margin A is filled into the radial groove 4 provided at the upper end of the annular blade portion base material 1'and the annular groove 5 provided at the inner peripheral surface to be integrated. Thus, the two 1'and 2'are joined by shaving. The local heating of the base materials 1'and 2'may be carried out by direct current heating, radiant heating by infrared rays or the like, or while being transferred in an electric furnace. If the height is slightly higher than the base material 2'side, the shaving bond becomes stronger.
刃付加工（研磨）は上記シェービング接合後に砥石等で
行い完成した環状カッターとなる。Processing (polishing) with a blade is carried out with a grindstone or the like after the above shaving bonding to obtain a completed annular cutter.
〈発明の効果〉 本発明による環状カッターは高価な環状刃物部と、これ
より安価なシャンク部を別々に構成し、かつ、これらの
両部材の相互接合されるシェービング接合部のいずれか
一方に段部を介して円周溝を設け、さらに、これら両異
質部材を別々に熱処理したものを、シェービング接合に
よって一体に接合したもので、従来のごとく、予め接合
したものをあとから熱処理した環状カッターに比べる
と、切れ味が頗る良好となり、また、上記シェービング
接合時、両部材の一方の削られた部材が円周溝に流れ込
むようよして充填されるため、より強固な接合が確保さ
れ、環状刃物部とシャンク部との接合部で破壊が起こる
ことがない。<Effects of the Invention> The annular cutter according to the present invention separately comprises an expensive annular blade portion and an inexpensive shank portion, and has a step on either one of the shaving joint portions where these two members are mutually joined. A circumferential groove is provided through the part, and further, these two dissimilar members are heat treated separately, and are integrally joined by shaving joining. Compared with each other, the sharpness is very good, and at the time of shaving joining, one scraped member of both members is filled so as to flow into the circumferential groove, so that a stronger joint is secured and the annular blade portion No damage occurs at the joint between the shank and the shank.
しかも、高価な材料で形成した部分は環状刃物部にとど
まり、また当該環状刃物部とシャンク部が円筒または環
状材によって形成した場合、生産工程で切削による大量
の切粉が出ることがなく極めて経済的である。その上、
機械的強度はシェービング接合による機械的結合で十二
分にカバーすることができるので、この発明の環状カッ
ターは切れ味の面、強度面で理想的である。Moreover, the part formed of expensive material remains in the annular cutting tool part, and when the annular cutting tool part and the shank part are formed of a cylinder or an annular material, a large amount of cutting chips are not generated in the production process, which is extremely economical. Target. Moreover,
Since the mechanical strength can be sufficiently covered by the mechanical connection by shaving joining, the annular cutter of the present invention is ideal in terms of sharpness and strength.
図面はこの発明の１実施例を示したもので、第１図は環
状カッターの断面図， 第２図は同じく斜面図， 第３図はシェービング接合前の環状刃物部母材とシャン
ク部母材を示す斜視図， 第４図はシェービング接合前の環状刃物部母材とシャン
ク部母材を加熱手段と共に示す説明図， 第５図はシェービング接合装置の１例を示す縦断正面
図， 第６図は従来の環状カッターの一部縦断側面図である。 図において、 Ａ……シェービング代 １……環状刃物部 １′……環状刃物部母材 ２……シャンク部 ２′……シャンク部母材 ３……シェービング接合部 ４……放射溝 ５……環状溝 ６……加熱装置The drawings show one embodiment of the present invention. FIG. 1 is a sectional view of an annular cutter, FIG. 2 is a perspective view of the same, and FIG. 3 is an annular blade part base material and a shank part base material before shaving joining. FIG. 4 is an explanatory view showing the annular blade part base material and the shank part base material before the shaving bonding together with the heating means, and FIG. 5 is a vertical sectional front view showing an example of the shaving bonding device, FIG. FIG. 4 is a partially longitudinal side view of a conventional annular cutter. In the figure, A ... Shaving allowance 1 ... Annular knife part 1 '... Annular knife part base material 2 ... Shank part 2' ... Shank part base material 3 ... Shaving joint part 4 ... Radiation groove 5 ... Annular groove 6 ... Heating device
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 昭59−97389（ＪＰ，Ａ) 特公 昭52−37236（ＪＰ，Ｂ２) ─────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-59-97389 (JP, A) JP-B-52-37236 (JP, B2)
Claims (1)
刃物部に接合されるシャンク部の２部材とからなり、当
該２部材の相互に接合されるシェービング接合部のいず
れか一方に段部を介して円周溝を設け、上記２部材のシ
ェービング接合時、当該２部材の一方の削られた部材が
上記円周溝側に充填されて一体に接合されることを特徴
とする環状カッター。1. A shaving joint portion comprising two members, an annular blade portion having a blade portion formed at one end thereof and a shank portion joined to the blade portion, wherein the two members are mutually joined together. A circumferential groove is provided through the stepped portion, and at the time of shaving joining of the two members, one scraped member of the two members is filled in the circumferential groove side and integrally joined. Annular cutter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60069618A JPH0659578B2 (en) | 1985-04-02 | 1985-04-02 | Ring cutter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60069618A JPH0659578B2 (en) | 1985-04-02 | 1985-04-02 | Ring cutter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61230824A JPS61230824A (en) | 1986-10-15 |
| JPH0659578B2 true JPH0659578B2 (en) | 1994-08-10 |
Family
ID=13408032
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP60069618A Expired - Fee Related JPH0659578B2 (en) | 1985-04-02 | 1985-04-02 | Ring cutter |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0659578B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4506556B2 (en) * | 2005-05-16 | 2010-07-21 | 株式会社デンソー | Method for separating shaft and bearing and apparatus therefor |
| JP4931964B2 (en) * | 2009-06-17 | 2012-05-16 | 学校法人福岡工業大学 | High-hardness material processing apparatus and processing method |
| CN103624497B (en) * | 2013-11-27 | 2016-01-06 | 沈阳黎明航空发动机(集团)有限责任公司 | A kind of processing method of large radius thin-walled semi-annular part |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5237236A (en) * | 1975-09-18 | 1977-03-23 | Matsushita Electric Ind Co Ltd | Gas burner |
| JPS5997389A (en) * | 1982-11-25 | 1984-06-05 | 町田 輝史 | Hollow body in which member, such as cover, partition plate,ring or the like are jointed |
-
1985
- 1985-04-02 JP JP60069618A patent/JPH0659578B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61230824A (en) | 1986-10-15 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |