JP2003117725A - Throwaway reamer - Google Patents

Throwaway reamer

Info

Publication number
JP2003117725A
JP2003117725A JP2001320128A JP2001320128A JP2003117725A JP 2003117725 A JP2003117725 A JP 2003117725A JP 2001320128 A JP2001320128 A JP 2001320128A JP 2001320128 A JP2001320128 A JP 2001320128A JP 2003117725 A JP2003117725 A JP 2003117725A
Authority
JP
Japan
Prior art keywords
reamer
cutting blade
tip
throw
pressing piece
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
Application number
JP2001320128A
Other languages
Japanese (ja)
Other versions
JP3912771B2 (en
Inventor
Hironori Kondou
浩教 近藤
Makoto Hiranaka
誠 平中
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tungaloy Corp
Original Assignee
Toshiba Tungaloy Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Toshiba Tungaloy Co Ltd filed Critical Toshiba Tungaloy Co Ltd
Priority to JP2001320128A priority Critical patent/JP3912771B2/en
Publication of JP2003117725A publication Critical patent/JP2003117725A/en
Application granted granted Critical
Publication of JP3912771B2 publication Critical patent/JP3912771B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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  • Milling, Broaching, Filing, Reaming, And Others (AREA)

Abstract

PROBLEM TO BE SOLVED: To prevent the change of a reamer diameter when making a back taper adjustment in providing a throwaway reamer with a fine adjustment mechanism for the reamer diameter and back taper. SOLUTION: A receiving part 7 counterbored in sector shape is formed at the tip part of a reamer body 2 to enclose a presser piece 6 therein, and a cutting edge tip 5 is formed to be pressure-fixed by clamping the presser piece 6 by a clamp screw 14. The push-out quantity in the outer peripheral direction of the cutting edge tip 5 is determined by an adjusting screw 17. The back face 12 of the presser piece 6 and the sector face of the receiving part 7 are formed as circular curved faces of the same radius R around the outermost diameter point P of a reamer diameter to allow micro rotary movement, and the movement is locked by a locking screw 20.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【発明の属する技術分野】この発明は、リーマ直径とバ
ックテーパとを微調整できるようにしたスローアウェイ
式のリーマに関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a throw-away type reamer capable of finely adjusting a reamer diameter and a back taper.

【0002】[0002]

【従来の技術】穴の仕上げ加工に使用されるリーマ工具
をスローアウェイ式の工具にて実現しようとする際に、
リーマ直径やバックテーパの微調整が必要となることが
ある。微調整機構を備えたものとして、たとえば、特開
昭52−122986号公報や特開平9−11039号
公報が開示されている。これらは、長方形平板状をなす
切刃チップの長辺を外周切刃とし、リーマの先端側と後
端側に配設した2つの調整ネジを切刃チップの側面に当
接させて、調整ネジの押し出し量でもってリーマ直径と
バックテーパとを調整するものである。調整された切刃
チップは、押さえ駒や締付ネジでもってリーマ本体に締
付固定される。
2. Description of the Related Art When trying to realize a reamer tool used for finishing a hole with a throw-away type tool,
Fine adjustment of the reamer diameter and back taper may be necessary. Japanese Patent Application Laid-Open No. 52-122986 and Japanese Patent Application Laid-Open No. 9-11039 disclose a device having a fine adjustment mechanism. In these, the long side of a rectangular flat plate-shaped cutting edge tip is used as an outer peripheral cutting edge, and the two adjusting screws arranged on the front end side and the rear end side of the reamer are brought into contact with the side surfaces of the cutting edge tip to adjust the adjusting screw. The reamer diameter and the back taper are adjusted by the amount of extrusion of. The adjusted cutting edge tip is clamped and fixed to the reamer body with a pressing piece and a tightening screw.

【0003】このようなスローアウェイ式リーマにおけ
る切刃チップは、まず工具先端部に近い位置に設けた調
整ネジによって所定のリーマ直径に調整し、次に、後端
部に設けた調整ネジでもってバックテーパの調整を行う
という方法がとられる。
The cutting edge tip in such a throwaway reamer is first adjusted to a predetermined reamer diameter by an adjusting screw provided at a position close to the tip of the tool, and then by an adjusting screw provided at the rear end. A method of adjusting the back taper is adopted.

【0004】[0004]

【発明が解決しようとする課題】前記のような従来の調
整機構の問題点は、バックテーパの調整と同時に、その
前に調整したリーマ直径が変動してしまうということで
あり、調整作業に手間がかかるということである。
The problem with the conventional adjusting mechanism as described above is that the reamer diameter adjusted before the back taper changes at the same time as the back taper is adjusted. It means that it costs.

【0005】[0005]

【課題を解決するための手段】この発明は、上記のよう
な課題を解決するためになされたもので、請求項1の発
明は、リーマ本体の先端部には、リーマ直径を決定する
最外径点を中心として扇形に座掘りされた受容部が備わ
るとともに、この受容部に載置される切刃体の回転移動
を拘束する係止手段を備え、かつこの切刃体を外周方向
に押し出すことのできる調整手段が備わっていることを
特徴とする。
SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and the invention of claim 1 is the outermost part for determining the reamer diameter at the tip of the reamer body. It is provided with a receiving part that is dented in a fan shape around the radial point, and is provided with locking means for restraining the rotational movement of the cutting blade mounted on this receiving part, and pushes out this cutting blade in the outer peripheral direction. It is characterized in that it is equipped with an adjusting means that can do this.

【0006】リーマ直径は、切刃体の外周方向への押し
出し量によって決まる。押し出し量は調整手段によって
決定される。一方、バックテーパは切刃体の回転方向の
静止位置によって決まる。この静止位置を決めるのが、
係止手段である。切刃体は、このとき、リーマ直径の最
外径点を中心として回転するようにしたものであるか
ら、最外径点の位置はバックテーパの調整によって変わ
ることがない。
The reamer diameter is determined by the pushing amount of the cutting blade in the outer peripheral direction. The amount of extrusion is determined by the adjusting means. On the other hand, the back taper is determined by the stationary position of the cutting blade in the rotational direction. To decide this stationary position is
It is a locking means. At this time, the cutting blade is adapted to rotate around the outermost radial point of the reamer diameter, and therefore the position of the outermost radial point does not change due to the adjustment of the back taper.

【0007】請求項2は、前記切刃体は、切刃チップと
押さえ駒とからなり、押さえ駒の背面が円曲面をなして
前記受容部の扇形面と当接するように形成されているこ
とを特徴とする。これは、切刃チップと押さえ駒とが一
体となって調整されるときの具体例であって、押さえ駒
がリーマの最外径点の位置を保ったまま移動する。
According to a second aspect of the present invention, the cutting blade body is composed of a cutting blade tip and a pressing piece, and the back surface of the pressing piece is formed in a circular curved surface so as to come into contact with the fan-shaped surface of the receiving portion. Characterize. This is a specific example when the cutting blade tip and the pressing piece are integrally adjusted, and the pressing piece moves while maintaining the position of the outermost radial point of the reamer.

【0008】請求項3は、前記押さえ駒の中に、調整ネ
ジが組み込まれていることを特徴とする。この調整ネジ
は、外周方向の押し出し量を決める調整手段であって、
特にリーマ直径の小さなスローアウェイ式リーマにおい
ても実現可能な手段である。
According to a third aspect of the present invention, an adjusting screw is incorporated in the pressing piece. This adjustment screw is an adjustment means that determines the amount of extrusion in the outer peripheral direction,
In particular, it is a means that can be realized even in a throwaway reamer having a small reamer diameter.

【0009】請求項4は、前記切刃チップの上面にV溝
が形成され、前記押さえ駒の先端がこのV溝の傾斜面を
押圧することにより切刃チップが固定されることを特徴
とする。このような構成は、切刃体の回転移動を伴うよ
うな本発明においても、切刃チップに引き込み作用と押
圧作用とを同時に与えるので、正確で強固なクランプで
ある。
According to a fourth aspect of the present invention, a V groove is formed on the upper surface of the cutting blade tip, and the tip of the pressing piece presses the inclined surface of the V groove to fix the cutting blade tip. Even in the present invention in which the cutting blade body is rotated and moved, such a structure provides a pulling action and a pressing action to the cutting blade tip at the same time, and thus is an accurate and strong clamp.

【0010】請求項5は、前記切刃体は一側面が円曲面
に形成された切刃チップ単体からなり、リーマ本体には
前記受容部を有したカートリッジが組み込まれ、この切
刃チップは、カートリッジの扇形面に円曲面が当接する
ように載置されてネジ止め固定されることを特徴とす
る。これは、リーマ直径はカートリッジの移動で行い、
バックテーパは切刃チップ自身の回転移動で調整するよ
うにした具体例である。
According to a fifth aspect of the present invention, the cutting blade body is composed of a single cutting blade tip whose one side surface is formed into a circular curved surface, and a cartridge having the receiving portion is incorporated in the reamer body. It is characterized in that it is placed so that a circular curved surface abuts on the fan-shaped surface of the cartridge and fixed by screws. This is done by moving the reamer diameter cartridge.
The back taper is a specific example in which it is adjusted by the rotational movement of the cutting blade tip itself.

【0011】請求項6は、前記カートリッジは、該カー
トリッジの背面に装着された楔駒によって外周方向に押
し出されることを特徴とする。比較的大径のリーマに好
適し、余裕のあるスペースを利用して組み込まれた楔駒
によりリーマ直径を調整するので、外周方向の移動が均
一にできるようになる。
A sixth aspect of the present invention is characterized in that the cartridge is pushed out in the outer peripheral direction by a wedge piece attached to the back surface of the cartridge. The reamer is suitable for a reamer having a relatively large diameter, and the reamer diameter is adjusted by a wedge piece incorporated using a space with a sufficient margin, so that the movement in the outer peripheral direction can be made uniform.

【0012】[0012]

【発明の実施の形態】次にこの発明の実施の一形態につ
いて、図を参照しながら説明する。図1〜図6は、請求
項1〜請求項4に関わるスローアウェイ式リーマ1を示
すものである。丸棒状をなすリーマ本体2の先端には、
切刃の取付精度測定の基準となる刃振れチェックリング
3が突設している。また、先端部外周には、加工穴と接
触して切削中の切刃の振れや振動を抑制するガイドパッ
ド4が所定の間隔でもって配設されている。
BEST MODE FOR CARRYING OUT THE INVENTION Next, an embodiment of the present invention will be described with reference to the drawings. 1 to 6 show a throw-away type reamer 1 according to claims 1 to 4. At the tip of the reamer body 2 in the shape of a round bar,
A blade runout check ring 3 which is a standard for measuring the mounting accuracy of the cutting blade is provided in a protruding manner. Further, guide pads 4 are arranged at a predetermined interval on the outer periphery of the tip end portion so as to come into contact with the processed hole and suppress the vibration and vibration of the cutting edge during cutting.

【0013】図2に示すように、切刃体は切刃チップ5
と押さえ駒6とによって構成されている。リーマ本体2
の先端コーナ部には、リーマ直径を決定する切刃チップ
5上の最外径点Pを中心として半径Rなる扇形に座堀り
された受容部7が形成され、この受容部7に切刃体が載
置される。切刃チップ5は、図3に示すように、略長方
形平板状をなし、かつ略平行四辺形断面を有している。
正面切刃8と外周切刃9との交差部には食付角として作
用する面取刃10が斜めに設けられる。最外径点Pは、
この面取刃10と外周切刃9との交点に当たる。チップ
上面には、長辺と平行にV溝11が条設されている。
As shown in FIG. 2, the cutting blade is a cutting blade tip 5.
And a pressing piece 6. Reamer body 2
In the tip corner portion of the cutting edge, there is formed a fan-shaped receiving portion 7 having a radius R centering on the outermost radial point P on the cutting edge tip 5 that determines the reamer diameter. The body is placed. As shown in FIG. 3, the cutting blade tip 5 has a substantially rectangular flat plate shape and a substantially parallelogram cross section.
A chamfering blade 10 acting as a biting angle is obliquely provided at the intersection of the front cutting edge 8 and the outer peripheral cutting edge 9. The outermost diameter point P is
The point of intersection of the chamfering blade 10 and the outer peripheral cutting edge 9 is reached. V-grooves 11 are provided on the upper surface of the chip in parallel with the long sides.

【0014】図4は押さえ駒6の詳細を示すもので、そ
の背面12は、受容部7の扇形の半径Rと同一の半径R
を有した円曲面に形成される。また、背面12の中間部
には、段付き半割り穴状の締付溝13が付設される。押
さえ駒6は、締付溝13と係合するボタンヘッド形の締
付ネジ14の頭部顎でもって、締付溝13の座堀面15
を押圧することにより締付固定される。締付溝13と締
付ネジ14との間は、微調整できるだけのクリアランス
を有している。
FIG. 4 shows the details of the pressing piece 6, the rear surface 12 of which is the same radius R as the fan-shaped radius R of the receiving portion 7.
Is formed into a circular curved surface. Further, a stepped half-hole shaped fastening groove 13 is provided in the middle of the back surface 12. The pressing piece 6 has a head jaw of a button head type tightening screw 14 that engages with the tightening groove 13 so that the countersink surface 15 of the tightening groove 13 is formed.
It is clamped and fixed by pressing. Between the tightening groove 13 and the tightening screw 14, there is a clearance that allows fine adjustment.

【0015】押さえ駒6の前方には、押さえ駒先端16
が突設されている。締付ネジ14の締付によって切刃チ
ップ5に条設したV溝11の傾斜面を押さえ駒先端16
が押圧することで、切刃チップ5には押圧力と同時に引
き込み力が与えられる。切刃チップ5の引き込み方向の
動きは、図5に示すように、押さえ駒6に螺合させた調
整ネジ17の先端によって拘束される。リーマ本体2に
は、スパナを挿入して調整ネジ17を操作するための穴
18が貫通している。
In front of the pressing piece 6, a pressing piece tip 16 is provided.
Is projected. By tightening the tightening screw 14, the inclined surface of the V groove 11 provided on the cutting edge tip 5 is pressed and the tip 16 of the pressing piece is pressed.
By pressing, the pulling force is applied to the cutting edge tip 5 at the same time as the pressing force. As shown in FIG. 5, the movement of the cutting blade tip 5 in the retracting direction is restricted by the tip of the adjusting screw 17 screwed onto the pressing piece 6. The reamer body 2 has a hole 18 penetrating therethrough for inserting a spanner to operate the adjusting screw 17.

【0016】押さえ駒6には係止壁19が突設されてい
て、切刃チップ5の長手方向、すなわちリーマ装着時の
工具軸方向の動きを受けとめている。押さえ駒6は、図
6に示すように、リーマ本体2に螺合させた係止ネジ1
9の頭部顎でもって、最外径点Pを中心とする回転移動
が係止される。
A locking wall 19 is provided on the pressing piece 6 so as to project the movement of the cutting blade tip 5 in the longitudinal direction, that is, the axial direction of the tool when the reamer is mounted. As shown in FIG. 6, the pressing piece 6 is a locking screw 1 screwed onto the reamer body 2.
With the head jaw of 9, the rotational movement around the outermost radial point P is locked.

【0017】微調整は次のように行う。まず、締付ネジ
14を仮締めして、押さえ駒6が切刃チップ5を軽く押
しつけている状態にする。次に調整ネジ17を操作し
て、最外径点Pが所定の寸法精度に入るように調整し、
リーマ直径を決定する。次に係止ネジ20の突き出し量
を調整して押さえ駒6の位置を決め、外周切刃9のバッ
クテーパが所定の精度範囲に入るようにする。そして、
締付ネジ14を本締めすれば、切刃体の装着が完了す
る。バックテーパは、最外径点Pを中心とした回転の方
向の移動によって調整されるから、この作業と連動して
起きる調整済みリーマ直径のズレという従来作業の問題
点が解消され、調整作業を素早く終えることができるよ
うになる。
Fine adjustment is performed as follows. First, the tightening screw 14 is temporarily tightened so that the pressing piece 6 presses the cutting edge tip 5 lightly. Next, the adjusting screw 17 is operated to adjust the outermost radial point P so as to be within a predetermined dimensional accuracy,
Determine the reamer diameter. Next, the protrusion amount of the locking screw 20 is adjusted to determine the position of the pressing piece 6 so that the back taper of the outer peripheral cutting edge 9 falls within a predetermined accuracy range. And
When the tightening screw 14 is fully tightened, the mounting of the cutting blade body is completed. The back taper is adjusted by the movement in the direction of rotation about the outermost radial point P. Therefore, the problem of the conventional work such as the deviation of the adjusted reamer diameter that occurs in conjunction with this work is solved, and the adjustment work is performed. You will be able to finish quickly.

【0018】次に図7および図8は、請求項1および請
求項5〜請求項6に関わる実施の一形態を示すスローア
ウェイ式リーマ1で、リーマ本体2と切刃チップ5との
中間にカートリッジ21を介在させたものである。切刃
体は切刃チップ5のみで形成され、締付ネジ22によっ
てカートリッジ21に締付固定される。このとき、切刃
チップ5の背面12は半径Rなる曲面に形成され、カー
トリッジ21に同一半径Rを有して扇形に座堀りされた
受容部7に収納される。
Next, FIGS. 7 and 8 show a throw-away type reamer 1 showing an embodiment relating to claims 1 and 5 to 6, in the middle of the reamer body 2 and the cutting blade tip 5. The cartridge 21 is interposed. The cutting blade body is formed of only the cutting blade tip 5, and is fastened and fixed to the cartridge 21 by the fastening screw 22. At this time, the back surface 12 of the cutting blade tip 5 is formed into a curved surface having a radius R, and the cartridge 21 is housed in the receiving portion 7 which has the same radius R and is fan-shaped.

【0019】カートリッジ21には係止ネジ20が螺合
して、その頭部の鍔でもって切刃チップ3の回転方向の
量を規制している。切刃チップ3は最外径点Pを中心と
して回転するように設定されていて、締付ネジ22とチ
ップ穴との間には微調整ができるだけのクリアランスを
持たせてある。カートリッジ21は、リーマ本体2に組
み込まれた押さえ駒23でもって締付固定される。押さ
え駒先端をカートリッジ21の上面に設けたV溝の斜面
を押さえるようにすれば、一層しっかりとした締付固定
となる。
A locking screw 20 is screwed into the cartridge 21, and the flange of the head thereof regulates the amount of the cutting blade tip 3 in the rotating direction. The cutting blade tip 3 is set so as to rotate about the outermost radial point P, and a clearance is provided between the tightening screw 22 and the tip hole for fine adjustment. The cartridge 21 is clamped and fixed by a pressing piece 23 incorporated in the reamer body 2. If the tip of the pressing piece is pressed against the inclined surface of the V groove provided on the upper surface of the cartridge 21, the tightening and fixing will be more firm.

【0020】カートリッジ21の背面26は斜面となっ
ていて、リーマ本体2に設けた角溝に収納された楔駒2
4の楔面と当接している。リーマ本体2と楔駒24との
両方に異なる勝手でもって螺合する左右ネジ25を操作
して楔駒24を浮き沈みさせることにより、楔作用によ
ってカートリッジ21が動き、切刃チップ5の外周方向
の微調整ができるようになっている。調整の方法は、第
1の実施形態と同様に、リーマ直径の調整後、バックテ
ーパの調整を行うようにする。
The back surface 26 of the cartridge 21 is an inclined surface, and the wedge piece 2 housed in the square groove provided in the reamer body 2
It is in contact with the wedge surface of No. 4. By operating the left and right screws 25 that are screwed to both the reamer body 2 and the wedge piece 24 with different degrees of freedom, the wedge piece 24 is lifted and lowered, whereby the cartridge 21 moves by the wedge action, and Fine adjustment is possible. As for the adjustment method, as in the first embodiment, the back taper is adjusted after the reamer diameter is adjusted.

【発明の効果】この発明によれば、最外径点を中心とし
た回転移動によって外周切刃のバックテーパを調整する
という機構の採用により、バックテーパの調整時に、前
もって調整したリーマ直径が影響されることがなくなる
から、リーマ直径とバックテーパとを容易に調整するこ
とができるようになる。
According to the present invention, by adopting the mechanism of adjusting the back taper of the outer peripheral cutting edge by the rotational movement about the outermost radial point, the reamer diameter adjusted in advance has an influence when the back taper is adjusted. Since it does not occur, it becomes possible to easily adjust the reamer diameter and the back taper.

【図面の簡単な説明】[Brief description of drawings]

【図1】この発明の第1の実施形態を示し、(a)は正
面図、(b)は側面図である。
FIG. 1 shows a first embodiment of the present invention, (a) is a front view and (b) is a side view.

【図2】図1(b)のリーマ先端部の拡大図である。FIG. 2 is an enlarged view of the reamer tip portion of FIG. 1 (b).

【図3】図1に装着された切刃チップを示し、(a)は
正面図、(b)は側面図を示す。
3A and 3B show the cutting blade tip mounted in FIG. 1, in which FIG. 3A is a front view and FIG. 3B is a side view.

【図4】図1に装着された押さえ駒を示し、(a)は正
面図、(b)は側面図、(c)は底面図である。
FIG. 4 shows the pressing piece mounted in FIG. 1, (a) is a front view, (b) is a side view, and (c) is a bottom view.

【図5】図2のA−A線に沿った断面図である。5 is a cross-sectional view taken along the line AA of FIG.

【図6】図2のB−B線に沿った断面図である。6 is a cross-sectional view taken along the line BB of FIG.

【図7】この発明の第2の実施形態を示す側面図であ
る。
FIG. 7 is a side view showing a second embodiment of the present invention.

【図8】図7の正面図である。8 is a front view of FIG. 7. FIG.

【符号の説明】 5 切刃チップ 6 押さえ駒 7 受容部 12 背面 17 調整ネジ 20 係止ネジ 21 カートリッジ 24 楔駒 26 背面 P 最外径点 R (円曲面の)半径[Explanation of symbols] 5 cutting edge chips 6 pressing pieces 7 Receptor 12 back 17 Adjustment screw 20 locking screw 21 cartridges 24 wedge pieces 26 back P outermost diameter point R (circular curved surface) radius

Claims (6)

【特許請求の範囲】[Claims] 【請求項1】 リーマ本体の先端部には、リーマ直径を
決定する最外径点を中心として扇形に座掘りされた受容
部が備わるとともに、この受容部に載置される切刃体の
回転移動を拘束する係止手段を備え、かつこの切刃体を
外周方向に押し出すことのできる調整手段が備わってい
ることを特徴とするスローアウェイ式リーマ。
1. The tip of the reamer main body is provided with a receptacle that is dented in a fan shape around the outermost radial point that determines the reamer diameter, and the rotation of the cutting blade mounted on this receptacle is provided. A throw-away type reamer comprising locking means for restraining movement and adjusting means capable of pushing out the cutting blade in the outer peripheral direction.
【請求項2】 前記切刃体は、切刃チップと押さえ駒と
からなり、押さえ駒の背面が円曲面をなして前記受容部
の扇形面と当接するように形成されていることを特徴と
する請求項1に記載のスローアウェイ式リーマ。
2. The cutting blade body is composed of a cutting blade tip and a pressing piece, and the back surface of the pressing piece is formed in a circular curved surface so as to come into contact with the fan-shaped surface of the receiving portion. The throw-away reamer according to claim 1.
【請求項3】 前記押さえ駒の中に、調整ネジが組み込
まれていることを特徴とする請求項1または請求項2に
記載のスローアウェイ式リーマ。
3. The throw-away reamer according to claim 1 or 2, wherein an adjusting screw is incorporated in the pressing piece.
【請求項4】 前記切刃チップの上面にV溝が形成さ
れ、前記押さえ駒の先端がこのV溝の傾斜面を押圧する
ことにより切刃チップが固定されることを特徴とする請
求項1〜請求項3のいずれかに記載のスローアウェイ式
リーマ。
4. The V-groove is formed on the upper surface of the cutting blade tip, and the tip of the pressing piece presses the inclined surface of the V groove to fix the cutting blade tip. The throw-away reamer according to claim 3.
【請求項5】 前記切刃体は一側面が円曲面に形成され
た切刃チップ単体からなり、リーマ本体には前記受容部
を有したカートリッジが組み込まれ、この切刃チップ
は、カートリッジの扇形面に円曲面が当接するように載
置されてネジ止め固定されることを特徴とする請求項1
に記載のスローアウェイ式リーマ。
5. The cutting blade body is composed of a single cutting blade tip whose one side surface is formed into a circular curved surface, and a cartridge having the receiving portion is incorporated in the reamer body, and the cutting blade tip is a fan-shaped cartridge. The circular curved surface is placed so as to contact the surface, and is fixed by screwing.
Throw-away reamer described in.
【請求項6】 前記カートリッジは、該カートリッジの
背面に装着された楔駒によって外周方向に押し出される
ことを特徴とする請求項1または請求項5に記載のスロ
ーアウェイ式リーマ。
6. The throw-away reamer according to claim 1 or 5, wherein the cartridge is pushed out in the outer peripheral direction by a wedge piece mounted on the back surface of the cartridge.
JP2001320128A 2001-10-18 2001-10-18 Throw-away reamer Expired - Lifetime JP3912771B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2001320128A JP3912771B2 (en) 2001-10-18 2001-10-18 Throw-away reamer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2001320128A JP3912771B2 (en) 2001-10-18 2001-10-18 Throw-away reamer

Publications (2)

Publication Number Publication Date
JP2003117725A true JP2003117725A (en) 2003-04-23
JP3912771B2 JP3912771B2 (en) 2007-05-09

Family

ID=19137565

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2001320128A Expired - Lifetime JP3912771B2 (en) 2001-10-18 2001-10-18 Throw-away reamer

Country Status (1)

Country Link
JP (1) JP3912771B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004345067A (en) * 2003-05-26 2004-12-09 Mitsubishi Materials Corp Throw-away type reamer

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004345067A (en) * 2003-05-26 2004-12-09 Mitsubishi Materials Corp Throw-away type reamer

Also Published As

Publication number Publication date
JP3912771B2 (en) 2007-05-09

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