JPS60104606A - Edge piece mounting device for boring bar - Google Patents

Abstract

PURPOSE:To prevent an accident during fastening/dismounting of the edge by fitting an arbitrary number of the cutting edges at arbitrary positions along the axial direction of the groove made on the boring bar body using the fixing members. CONSTITUTION:In order to fasten and hold a cutting edge 10 on a boring bar body 1, the cutting edge 10 is inserted into the groove 4 of the bar 1, and at the same time, a fixing member 30 is fitted on the bar body 1. The sidewall 13 of the supporting base of the cutting edge 10 is placed so that it will be in close contact with the sidewall 2 of the groove 4 of the bar body 1 while the sidewall 34 of the cutout 36 of the fixing member 30 is positioned so that it will make a continuous flat surface with the sidewall 2 of the groove 4. The sidewall 34 is also placed very closely against the first side wall 13 of the supporting base 15. Then the fixing member 30 is fixed on the bar body 1 by revolving a screw piece 40 for fixing which is fitted on the fixing member 30 as a screw. Then, the tip of a screw piece 38 is pressed against the second sidewall 14 of the supporting base of the cutting blade 10 by turning the screw piece 38 for fastening which is screwed through the fixing member 30. Thus the cutting edge is fastened firmly on the bar body 1. Accordingly, plural number of edges can be freely fastened or dismounted at the arbitrary positions along the boring bar.

Description

【発明の詳細な説明】[Detailed description of the invention]

（イ）発明の嬬す・る技術分野 本発明は、中ぐシ加工や座ぐり加工に使用されるボーリ
ングバーにおける刃具の取付装置にかかり、特に第二刃
、第三刃を取付けて使用するボーリングバーの第三刃以
降の刃を取付けるに逸したものである。 （ロ）従米技術の説明 ワークに中ぐり加工を施す除には、通常面取り加工や淫
ぐり加工が付随して要求される０徐準ボーリングバーで
これらの加工を行う場合には、これら加工の葆類および
数に応じた数の追加のボーリングバーが必猥となる。 またこれらの付随加工をも１本のポーリングツく−で力
［１工しようとす）ＬＩ／ｌ、１本のボーリンクバー′
に、第−刃の取付位１μの＠Ｈ方向イダカに第二刃、妬
三刃等付随刀ロエに用いる刃具（−−ｊ矩した特殊設計
のものとなシ、高価となるはかりか、これら付随加工を
組合せた専用加工工具となり、汎用性のないものとなる
。 冨らに、支持台に刃具を同浴したカートリッジ式の切角
１」刃具をボーリングバーに取付けたい渦付ニ、ボーリ
ングバーにカートリッジ式の切削刃具を容入できるぽを
その都度刻設して固’ｙＭすることも行われているが、
該切削刃具のポーリングツ＜−の一方向や径方向への−
ＩＪ　廠ＩｊＴ能な寸法は微少でりり、汎用性は少い。 （ハ）発明の目的 本発明は汎用としてイ史用町寵なボ′−リングツ・一本
体に、支持台に刃具を固着した７Ｊ　−ト’）ツジ式の
ｕＪ　ｔ４！Ｉ刃具をボーリングバ一本体の軸方向の仕
意の位置に緊締および取外しを自在としたカ（−リング
バーの刃具取付装置？提供することを目的とする０ 本元う−Ｊは、特して、ポーリング〃ロエ用の第−刀の
？こかに、該ポーリング加工に付随する加工用の第二刃
、第三刃寺、第二刃以俊の刃−ＡＴｈボーリングバーの
任７行の位置にＸ　ｉ＋ｊｉｌおよび取外し自在に取付
けるボーリングバーの刃具取付装置を提伝、することを
目自勺とする。 に）９Ｇ明の構成 本発明はボーリングバ一本体（以下単に）く一本体とい
う）と、切削刃具と、固定部材の王者から成るボーリン
グバーの刃具取付装置に係るものである。 バ一本体は、円筒状のバ一本体の外周面に、所定の１而
を隔てて平行に対向する但」做勿前Ｈｃ：ノく一本体の
軸方向に平行に配設した凹面３学状の凹笹が少くとも１
個刻設されたものである０ ９１削刃具は、低部の幅を前記バ一本体に形成した凹溝
の前記所定の幅と等しいかこれより狭い幅とし、その幅
方向の両端部に延在する両側板のうち２Ｂ　１の・−り
ををｈｌ」記紙部にほぼ証直に形成し、第２の側壁をｊ
氏都から頂部に至るに従ってｉｉＵ記第１の′−；ｊ壁
との間の１１°呆ｋ　’ｆＫ、第に２曳するような肩面
（′こそｎぞれ形成した支持台と、ざ支持台の頂部より
上方に刃幅を位置せしめるようにｒｒＪ記支］゛、ｆ台
に固７ｎさ粗た刃具と、前記支持台に１４ｆｌ記第１の
１」１」壁に平行な軸を中心として前ｉ己支持台の底部
にはば垂直に頂部から貫通せしめて形成した螺子Ｌに調
〜（用螺子を螺装せしめて成る。 固定部材は、板状材に」こり内周面の径を前記バ一本体
の外周面に密に１灰合する径とした円筒状に形成され、
その軸方向一端の−ＭｉＴｊ　＋ｉ！’には七〇ツム」
方向の鴨が前記バ一本体に形成した凹Ｏ斗の前記ｔｙｒ
定の１Ｉｌｉ４と弄しいかこれより狭い幅でるって、そ
の軸方向の両側壁のうち第１の１則壁を前記バー４体の
凹γｆＩＹ、の一力の側壁と半行に形成した切欠さを形
成した現状部材と、該環状部材にぞの切欠きの第２の１
ＩＩｌ＋皺に極めて近接した外衣面の位置からｎＩＪ記
記２のψ１ｊ壁の径方向内方の而に向けて連通せしめて
形成した喋孔に螺装せしめた鰍灯用螺子と、ＭｉＪ紀壌
状部材に七の直径方向にその板状材を負加ゼしめて形成
した嗟孔口１（せしめた固定用螺子とを具備する。 上記切ｆ−１１刃具をバ一本体に緊締保持するには、切
削刃−ａをバ一本体の凹溝に伸直するとともに両足部′
ｊ１２を前記バ一本体に嵌装し、切１１１］刃真の支持
台の頂９１５をバ一本体の外周面より突出させ、その第
１の１＋ｉｔ権を前記バ一本体の四面および固定部材の
切欠きのそれぞれの第１の（０１迩に缶着させ、固定部
材に螺装せしめた固定用瑯子を回動せしめてバ一本体に
その先端部を圧接せしめて固定部材をバ一本体に固着す
るとともに、固定都羽に螺装−Ｗしめた緊Ｍ’ｍ　Ｍ’
ｌ　螺子を回動せしめて切削刃具の支持台の第２の側壁
にその先端部を圧徽せしめで、切削刃具をバ一本体に諧
誦するようにしたものでりる０ Ａｉｌ記切削刃具の支持台に螺装せしめた調些用騨子は
、該和子を回動せしめてその支持台の底部とバ一本体の
凹溝の紙部との間隔を変え、支持台に１廊崩した刃物の
刃部の固定部材外周面より突出する寸法ｋ　Ｈｉするも
のである。 （ホ）実施例の説明 Ａ″Ｊ１区は不究明の一欠ガ１ｊ　ｉ；ｌｊの妥汎；ｉ
の上面図で、７トし、第２図は七の一部ケ省醋し、力）
つ一部を欠付１−して示した仙Ｉ匡図、第５図はＷ、３
−山−１■心に、）＋）う断面図を示す。 不究明のボーリングバ一本体（以下単にバ一本体という
）１は円ｆｔ＋形の尤艮にわたって号しい１目径をゼし
、その工作俵械の回転玉軸への取付部を除いてほぼ全長
に、所泥の１４Ａを隔てて３６行に対向する一対の・１
剛壁２，２とツノ(a) Technical Field of the Invention The present invention relates to a device for attaching a cutting tool in a boring bar used for boring and counterboring, and in particular, to a device for attaching a cutting tool to a boring bar used for boring and counterboring. It was a mistake to attach the third and subsequent blades of the boring bar. (b) Explanation of conventional technology Except for boring a workpiece, chamfering and chamfering are normally required. When performing these operations with a zero-speed semi-boring bar, these operations must be carried out. A corresponding number of additional bowling bars are required. In addition, these incidental machinings can be performed using one poling tool (trying to perform one machining) LI/l, one boring link bar'
In addition, the second blade, three blades, etc. are used for the accessory sword Roe, with the installation position of the first blade being 1μ, @H direction, etc. It is a specialized machining tool that combines incidental machining, and is not versatile.In addition, it is a cartridge-type cutter with a cutting tool attached to the support stand. It is also done to harden the blade by carving a hole into it each time to accommodate a cartridge-type cutting tool.
The poling tool of the cutting tool <- in one direction or in the radial direction.
IJ 廠IjT The available dimensions are minute and the versatility is low. (c) Purpose of the Invention The present invention is a general-purpose boring tool with a cutting tool fixed to a support stand. The purpose of this item is to provide a device for attaching a cutting tool to a boring bar body, which can be freely tightened and removed at a desired position in the axial direction of the main body of a boring bar. The second blade for processing associated with the poling process, the second blade for processing, the second blade for processing, the second blade for the Pauling process, and the second blade for processing - the seventh line of the ATh boring bar. It is our aim to provide a tool mounting device for a boring bar that can be removably mounted on a boring bar body (hereinafter simply referred to as a boring bar body). This invention relates to a cutting tool mounting device for a boring bar, which consists of a cutting tool and a fixing member. The bar body is parallel to the outer peripheral surface of the cylindrical bar body with a predetermined space in between. At least 1 piece of concave bamboo
The individually carved 091 cutting tool has a lower width equal to or narrower than the predetermined width of the groove formed in the bar body, and extends to both ends in the width direction. Of the existing side plates, 2B1 is formed almost directly on the hl'' marking section, and the second side wall is
As you go from the capital to the top, there is an 11° gap k'fK between the first '-; rrJ mark so that the blade width is positioned above the top of the support stand], a hard 7n coarse cutting tool on the f stand, and a shaft parallel to the wall of the 14fl mark on the support stand. The fixing member is made of a screw L formed by penetrating vertically from the top into the bottom of the support base at the center. It is formed in a cylindrical shape with a diameter that closely fits the outer peripheral surface of the bar body,
-MiTj +i! at one end in the axial direction! 'Seventy Tsums'
The tyr of the concave hole formed on the body of the bar in the direction of
The width is narrower than 1Ili4, and the first one of the two walls in the axial direction is a notch formed in half a line with the one-force side wall of the concave γfIY of the four bars. The current member with a groove formed therein, and the second one of the notches in the annular member.
A screw for a lantern screwed into a hole formed by communicating from a position on the coat surface very close to the IIl + wrinkle toward the radially inward side of the ψ1j wall of nIJ notation 2, and a MiJ period loam shape. A hole opening 1 (with a fixed screw) formed by applying pressure to the plate material in the diametrical direction of the member. Re-extend the cutting blade -a into the concave groove of the bar body, and remove both legs'
j12 into the bar body, cut 111] and make the top 915 of the support base of the cutting stem protrude from the outer peripheral surface of the bar body, and the first 1+it right is attached to the four sides of the bar body and the fixing member. Attach the first (01) of each of the notches and rotate the fixing claw screwed onto the fixing member to press its tip against the bar body, and then attach the fixing member to the bar body. At the same time as it is fixed, it is screwed onto the fixed wing - W tightened M'm M'
0 The cutting tool is pressed against the main body of the cutting tool by rotating the screw and pressing its tip against the second side wall of the support for the cutting tool. A cutting pin screwed onto a support base is rotated to change the distance between the bottom of the support base and the paper part of the concave groove of the bar body, and the blade is screwed onto the support base. The length of the blade protruding from the outer peripheral surface of the fixing member is kHi. (E) Explanation of Example A''
In the top view of
Figure 5 shows W, 3 with one part missing.
-Mountain-1■ At the center, ) +) sectional view is shown. The unidentified boring bar body (hereinafter simply referred to as the bar body) 1 has a large diameter across its circular ft+ shape, and is almost the entire length excluding the part where it is attached to the rotating ball shaft of the work bale machine. , a pair of 1s facing each other in row 36 across 14A.
Hard wall 2, 2 and horn

【ノ４ｇ３とを翁ａえた１ノｔ　［＋
ｉｉコ字状の凹溝４をバーｌＩＸ捧１のＯ’１１１万回
に平行に配設したものでりる０この凹溝４は標帛ボーリ
ングツく−においては１本のみ刻設すれば）［りるが、
必要に応じて数本の凹＋ＷＩケバ一本体１０周方向に号
）ｉ１暗に配列せしめてもよい０上記惧ｊ這２，２１ｂ
」の間隔は俵迎する切削刃具および固定部材における関
連する部分の幅と対比１−るため、こＪ′［を１５１足
のｌｌ＆ｉと称する。 切削刃具はあニカとしてｍｕ記７Ｃ一本１１；に取付け
るものとして説明する０この切削刃具１０に、紙部１１
および」負部１２を平坦に、かつ）Ｚ一本体１　。 に取付ける除にバ一本体１の周方向に対向する両相！１
壁は、ての第１のｉｌｌ！Ｉ壁１６を前記底部１１に垂
■゛に、ぞの第２の仙ｊ壁１４は底部１１から頂部１２
に至るに従って前記第１の側壁１３との間の幅を次第に
減するように斜面に、それぞれ形成され、その幅方向の
断面は、第１の側壁１３が底面１１に基直な梯形を呈す
るように形成された支持８１５を具備する。該支持台５
の一端部は第２の１１１１１壁１４の一部を切欠いて第
１の側壁１３側を残した刃具支持部１６が形成され、該
刃具支持具１６の第２の側壁１４＄１１１Ｌｖ側面に、
刃具１７がその刃部１８を頂部１２から突出せしめて固
着されている。前記支持台１５には前記第１の側壁１６
に平行で底面１１に垂直な軸を中心とする螺装１９がそ
の頂部ｌ５１２から紙部１１まで貫通して刻設され、前
記螺装１９には町原用螺子２０が蝶敷されている。 前記支持台１５の刃具支持部１６を形成した漏部の反対
仰ｊの端＠は第１のＩＪｌｌｉ壁１５に垂直な端面２１
に形成されている。 ＊ｉｌ　：＋？宅−桁伯１５の害菌１１１け一部１のイ
ｔｉｌｌ縦１３と第２の側壁１４との幅か前記バ一本体
１の両（ｉｉ１１壁２．２間の間隔でめるＨ［定の幅の
寸法と等しいかこれより狭い暢に形成されて２シ、切１
り刃具１０をその紙部１１をバ一本体１の底壁６に而せ
しめて伸匝するときに、支持台１０が凸？イ４４内に入
シこ不得る寸法であって、支持台１５の第１の側壁１６
を凹Ｃ傅４の一方のｆｉｌｌ壁乏に笛倉ゼしめるとき、
支持台１５の第２の側壁１３は）底部１１より頂部１２
に至るに従って凹溝４の他方の１１１１　壁２より次第
に遠去かる斜面をなしている。そして調蟹用島子２０を
支持台１５に対して回動せしめるときは、支持台１５の
頂部１２０位置をバ一本体１０回覧中心に閑し直径方向
に変更できる。 固定部材５０は板状材により円筒状Ｖこ成形された環状
部材３１？：有し、該環状部材６１の内周面３２は前記
バ一本体１の外周向に対し軸方向および周方向゛に指動
が許される程度に密に嵌合する内径を有するように形成
され、前記環状部材６１の軸方向の一端縁６３には軸方
向に延征する餓硫３４゜３５間を欠除せしめた切欠き３
６が形成され、そのＡ４−１対向する１１１１Ｉ壁３４
．３５が互いに平行で、かつ両側１壁のうち第１の側壁
６４は、環状部材３１をバ一本体１に嵌装して前記切欠
き６６を門前４のＩ：径方向外方に位置させ、かつ前記
第１の世］壁６４を凹７Ｊｉ　４の一方の側壁２に合致
せしめたとき、目ｉ［記紀１の側壁６４と側壁２とは同
一平面上に位置し、ともに凹溝４内に挿置する切削刃具
１０の支持台１５に形成した第１の側壁１３に密着せし
め得る。前記第１の側壁３４と第２の側壁３５とのＩＭ
］陥は前記凹溝４の両側娠２．２間の前記ＰＪ［定の幅
と等しいかこれより狭く形成され、前記切Ｒ１ｊ刃具１
０の支持台１５または刃具１７の刃部を環状部材３１の
外周面より直径方向外方に突出せしめるに十分な幅とさ
れる。前記環状部月６１の外周面には切欠き６６の第２
の側壁３５から周方向に住めて近接した位置に開口し、
該開口を含む環状部材３１の軸に垂直な平面内に中心軸
を有し、かつ該中心軸が前記第２の１ｊｌｌｌ壁５５内
もしくは第２のＩＩＩＩｊ壁３５か壁内５面３２に接続
する部分を通るように傾斜せしめられている螺装３７が
刻設され、騒馴孔６７には緊に１□用螺子３８が螺装さ
れる。 前記騨孔３７の中心軸の方向は、切８１」刃具１０の支
持台１５に形成しため１の１ｊ’ｌ　Ｗ　１３を切欠き
５６の第１′の側壁３４に密矯ぜしめた状感で、支ｊづ
４台１５に形成した第２の１１１ｊ壁１４に直交する方
向とすることが最も好ましい。栗状部ゼ゛３１の前記リ
ノ欠き６６より軸方向に隔たった位置に、環状部材３１
の直径方向にその板状材を貫通せしめて螺装３９が形成
され、該螺装３９には固定用螺子４０が螺装される。該
固定用螺子４０を回動ぜしめるとその先端部がバ一本体
１の凹溝４の）江壁５にＨユ接され、環状部材３１がバ
一本体１に固定さオＬる。 なお上記調整用螺子２０、固定用螺子４０および緊細用
螺子は、図示したようにその頂部に１潮方向に垂直な面
が断面六角形の凹溝４１捷たは阻住方向に一文字あるい
は十文字の四屑を刻設し、断面六角形の工具またはドラ
イバを前記凹溝４１等に嵌入して回動せしめるようにす
るとよい。 その細口中符号５０はホーリングバーに設けた第−刃を
示すものであって、図面に示す第−刀５０は上述した切
削工具１０と同一の構造のものであるから切削工具１０
と同一部分は同一符号を付して示し、その説明は省略す
る。符号５２は鵠−刃５０の固定用補助具を示し、上面
よりみて第１片５６と揶２片５４とが直角に父わるＬ字
形を呈するように一体に形成されたものである。上記第
１片５３は、その長手方向をバ一本体１の凹溝４の両側
壁２．２の輻を同一寸法に形成されて凹溝４の幅方向に
否に嵌装され、上記第２片５４はその一側面５５が回前
、４の一方の側壁２に督着する面に形成され、その他側
面は切削工具１０の興２の１ｉｉｌＩＡｉ＋　４と同一
の傾が１の斜面５６に形成されて前＋１己割拭１４に密
着せしめられ、前記第１片５６の；Ｂ−Ｓ２片５４との
交叉部にその頂面から底面に貫通せしめて、かつ凹溝４
の底壁・６に垂直方向に穿設した透孔５７には取付用螺
子杆５８が緩挿され、朕取付用螺子杆５８は凹溝４の底
壁５に刻設した跡孔５９に螺装されて、前記固定用補助
具５２の斜面５６と切削工具１０の第２の側壁１４との
保合を介して切ＡＩＪ工具１０をその位置に緊締するよ
うに構成されている。なお図中符号６０は固定用ｉｔ助
具５２の第１片５６にバ一本体１の軸方間に押設された
囁孔に和装されたｕ、」ＳＪ、ｌ用祢子を示し、第−刃
５０としてのＬ／ＩＩ！ｉｌＪ刃具１０の端面２１にそ
の先端を当接せしめて切ｎ１」刃具１０のバ一本体１の
軸方向位置を調Ｍ４するものでるる。 上記実施例において切削刃具１０をバ一本体１に取付け
るには、バ一本体１に固定部材３０を嵌装し、切削刃具
１０をバ一本体１の軸方向の１−９ｉ　望の位置におい
て凹溝４内に挿置し、その支持台１５の第１の側壁１６
を前記凹溝４の一方のｉｇ＋＋　ｙｔ　２に密着せしめ
、固定部月５０を摺ｍｂせしめて切欠き３乙の第１の側
壁３４を前記凹溝４の側壁２と同一平面となる位置にも
たらして前記支持台１５の第１の側壁に密着させ、固定
部材５０に螺装ぜしめた固定用螺子４０を回動ぜしめて
その先端部全凹溝４の底壁６に圧接せしめて固定部材３
０をバ一本体１に固定する。次に切削刃具１０の支持台
１５に螺装せしめたｈｌ・′ａ晋用螺子２０を回動ゼし
りその先端部を凹溝４の底壁６に当接せしめることによ
シ刃具１７の刃先１８のバ一本体１の直径方向の位１σ
を調廠し、成型の矢高１立置にもたらす。 次に切削り具１０の支持台１５に螺装せしめた緊１而用
螺子３８を回動騒しめでその先端部を前記支持台１５に
形成した斜面をなす第２の側壁１４に圧接ぜしめると、
前記緊締用螺子６８による押圧力は切削刃具１０の支持
台１５を凹溝４の側壁２に直角方向に押圧する分力と凹
溝４の底部！５に向けて押圧する分力とを有することか
ら、切削刃具１０はその位置に緊結される。そして緊締
用粘子３８による切削刃具１０をバ一本体１に繁締する
力により切削刃具１０の支持台１５はその第１の側壁１
５のほぼ全面がバ一本体１の凹溝４の側壁２および同定
部材５０の切欠き′５乙の第１の１！ＩＩ　壁兵１０が
バ一本体１より脱落することはないＯそして切削刃具１
０をバ一本体１の軸方向に移動させ、あるいはバ一本体
１よυ取外すためにバ一本体１への緊誦を解１庸するに
は、前記緊締用螺子３８および固定用螺子４０庖繁ｔｈ
ｌＹ・鴫と反対方向にＩＬ！Ｉしぜしめて押圧力盆舘除
することにより、似めて容易になし得るのでめる。 壕だ図示の実施例からも埋月手し得るように、切削刃共
１０を支持台１５に刃具１７を固元したカートリッジ式
の切削刃具としたことによシ、ｇ＞　−刃５０に用いる
切ら１ｊ刃共と支持台１５２共通のル状、構造とするこ
とにより、ボーリングバーに複数個の刃具を極めて容易
に、かつ任に゛の位置に緊締することができるとともに
、七の父候も極めて容易に行うことができるものである
。 なお環状部材３１に直径方向にブレ成した法子分うし およびＶ螺子３９に螺装ぜしめた固定用螺子４０は、図
示したように切欠＠６′６より軸方向に隔たった位置に
”限らず、環状部材ｂ１の周方向の仕ｔの位置に配設す
ることができる。特に前記切欠き６６の直径方向にり１
向する位置に配設したと＠は、固定用林子４０を回動ぜ
しめてその先端をノ（一本体１−に圧接ぜしめたとさ、
切欠き３６の同核の慮状部尉６１の部分は”バ一本体１
の局面との間に間隙が形成されることなく密層せしめる
ことができる０ （へ）発明の効呆 本発明は、ボーリングバ一本体と、切削刃具と、固定部
材の王者から成り、前記バ一本体はθｒ定の暢を隔てて
対向する側壁を有する断面コ字状の屑がバ一本体の軸方
向に平行に少くとも１個刻設され、前記切削刃具は、あ
１の側壁を底部にほば垂直に形成され、この第１０個壁
と対向する第２の１１］ｓは底部から頂部に至るに従っ
て前記第１のｉｉ’ｌｌｌ壁との間の幅を次第に減する
ような斜面に形成され、かづ底部における第１および第
２の側壁との間の幅は前記所定の鴨に等しいかこれより
狭い幅に形成された支持台を肩し、前記同定部材は前記
バ一本体の外周面に密に嵌合する径の内周面を形成した
円筒状の環状部材を有し、峨環状部材には軸方向の一方
の端稼に切欠きが形成され、該切欠きの軸方向に延在す
る第１の側壁は前記環状部材をバ一本体の外周面に鮒装
したとき前記凹溝の一方の１Ｉｌｌｌ　壁と同一平面を
なすように形成されているンク−ら、ｖノ目１］刃具の
支］イ右を七のツム６ｔｔをバー不１本の紙継に向け、
その第１の１ａ１１掘を細状８わゲの切欠ぎの８ｆｉ　
１の伯り壁およびｉ’ｊＵ記凸侮の一方の・ルす壁に布
、４１するように凹溝内すこ挿ｆ６−ず退ときは、前記
又１」台はその第１のｉ＋ｉｌ　Ｖのｅ、Ｌは全面全前
記凹面のｉｌｌ’１な２および環状部材の切欠きの熟１
の筒壁に否歴せしパ・〕ることができ、塩状部拐°に螺
装ぜしめｆＣ累緬用贅子の先端部により支持台の斜面を
なす紀２のＩＩ・１９−を押圧するときは、切削刃具ｒ
支持台の躬１の・あり壁のほぼ全面（〕曖でバ一本体お
よびバ一本体にＬｉ＋戻される環状部材に摩擦的に係合
せしめること刀・できる。 そして前記緊締用螺子は、Ｎｉｌ記後状部相にその切欠
きの第２の側覧に極めて迎接した外表面の恒温から前記
第２の側壁の軸方同内方の■に向り−て貫通ぜしめて形
成した螺装に映（装ぜしめてりるから、緊締用螺子のｉ
Ｕ記支持台への押圧力は支持台の第１のＮ　Ｍに垂１は
方向の分力と該支Ｊ・１台の：ｒ−ｉ　ｔｉｆｆへ向う
方向への分力とを弔することになり、１１１１　Ａｔ支
持台はその第１の１１１！ｌ壁を凹面の１４１１−およ
び戦状４１、β材の功欠きの第１の側壁に圧着せしめら
れる力と、凹ｒｉｌの、匠壁へ向けて圧着せしめられる
力とを父け、支持台はバ一本体に強固に緊締３れるとと
もに、支持台に固定した刃部に切削抵抗が加わつ７ｔ　
＋＞ｒ。にも支持台の第１のｍｔｌ壁の広い面に緊締用
螺子の押圧力で作用しているＨ　ｊＡ４砥仇０ために、
支持−８がバー不休よシ脱落するおそれはない。 さらに前記固定部材は板状材で形成された環状部材の内
周面がバ一本体の外周面に缶に妖合される住に形成され
ているとともに、そのハ往万同に板状材を貫通せしめて
形成した螺装に４装した固定用梯子によりバ一本体に固
定されるから、固定用螺子の先端部でバ一本体のＪ＋！
ｉ１面または凹溝の低壁を押圧するのみで強固にバ一本
体に置屋さ１、ぞの切欠きの第１のｉ！ｌＩ壁をバ一本
体の凹Ｉみの側壁と協同ぜしめて切目υ刃具の支持台ケ
強固に支承するものである。 徒って本発明によ八ば、バ一本体の回国中に、バー不休
の軸方向の任し眞の位置に、任意の舷の切Ｒ１ｊ力具全
回定部材により容易に緊紬固涜することができ、その切
削刃具の刃先の軸方向位置を繭層することも容易である
とともに、切削刃具をバ一本体から取り除くことも極め
て容易であり、切３１」刃具の刃先のバー′本体に対す
る直往方向の突出度も、支持台に頂部よシ底部首で貫通
せしめて形成した佛孔にｑ装せしめた藺整用螺子により
極めて容易に調督するこ°とができるものである。 よって本発明は、第−刃を固着したボーリングバーに、
第二刃以徒の伺随加工用の刃具をその！Ｋｉ１方向と径
方向位置ｋ　ｆＥｌ：意に取伺ｉＪることかでざる極め
て優れた発明であるほか、２「】２二刃以後の刃具の取
付けのみなら１、第−刃の取付けにも用いることができ
るものである。 なお本発明においてバ一本体に凹曲をｆ’ｙ’、条ル成
ずれば第三刃以後の刃具をバ一本体の周万回位画を第−
刃および他の刃具と異らせて取伺り゛ることかできると
ともに、固定部材の環状部材の切グくさの第１および第
２の側壁ＩｌｌのＩ向を切Ｆ＋ｌｆ刃具Ｃり又ｊ庁舎の
底部の幅よシ狭く形成しておけば、バ一本体に切削刃具
を緊締または取外す除に、切Ｍ１１刃共がバ一本体より
説？ｂする不時の災害を防止することかでさる。[1not 4g3 and 1not [+
ii U-shaped grooves 4 are arranged parallel to the O'1110,000 times of the bar I ) [Riruga,
If necessary, several concave + WI flanges may be arranged in the circumferential direction of the main body 1).
'' is compared with the width of the cutting tool and the related part of the fixing member, so this J'[ is referred to as 151 feet of ll&i. The cutting tool will be explained as being attached to a piece of paper 11 in the cutting tool 10.
and'' flatten the negative part 12, and) Z-body 1. Both phases facing in the circumferential direction of the main body 1 are attached to the bar! 1
The wall is the first ill! The I wall 16 extends vertically from the bottom 11, and the second wall 14 extends from the bottom 11 to the top 12.
The slopes are formed so that the width between the first side wall 13 and the first side wall 13 gradually decreases as the first side wall 13 reaches the bottom surface 11, and the cross section in the width direction is such that the first side wall 13 has a trapezoidal shape that is basic to the bottom surface 11. A support 815 is provided. The support stand 5
A cutter support part 16 is formed at one end by cutting out a part of the second 11111 wall 14 and leaving the first side wall 13 side, and on the second side wall 14$111Lv side of the cutter support 16,
A cutting tool 17 is fixed with its cutting portion 18 protruding from the top portion 12. The support stand 15 has the first side wall 16
A thread 19 centered on an axis parallel to and perpendicular to the bottom surface 11 is cut through from the top l512 to the paper portion 11, and a machihara thread 20 is inserted into the thread 19. The opposite end of the leakage part forming the cutter support part 16 of the support stand 15 is an end surface 21 perpendicular to the first IJlli wall 15.
is formed. *il:+? The width of the vertical 13 of the part 1 and the second side wall 14 or the distance between the two sides of the bar body 1 (ii11 walls 2.2) 2 slits, cut 1
When the cutting tool 10 is stretched with its paper portion 11 attached to the bottom wall 6 of the bar body 1, does the support base 10 protrude? The first side wall 16 of the support base 15 has a size that cannot be inserted into the
When closing one of the walls of the concave C 4,
The second side wall 13 of the support base 15 is) from the bottom 11 to the top 12.
1111 of the groove 4 forms a slope that gradually becomes farther away from the other wall 2. When the crab island 20 is rotated with respect to the support stand 15, the position of the top part 120 of the support stand 15 can be changed in the diametrical direction by setting the position of the top part 120 of the support stand 15 to the rotation center of the bar body 10. The fixing member 50 is an annular member 31 formed from a plate material into a cylindrical V shape. The inner circumferential surface 32 of the annular member 61 is formed to have an inner diameter that fits tightly to the outer circumferential direction of the bar body 1 to the extent that finger movement is allowed in the axial and circumferential directions. , one end edge 63 in the axial direction of the annular member 61 is provided with a notch 3 extending in the axial direction and having a gap between 34° and 35°.
6 is formed, and its A4-1 opposing 1111I wall 34
．． 35 are parallel to each other, and the first side wall 64 of one wall on both sides has the annular member 31 fitted into the bar body 1 so that the notch 66 is located outside in the I: radial direction of the front door 4, When the wall 64 is aligned with one side wall 2 of the recess 7Ji 4, the side wall 64 of the i [Kiji 1] and the side wall 2 are located on the same plane, and both are in the recess 4. It can be brought into close contact with the first side wall 13 formed on the support base 15 of the cutting tool 10 to be inserted. IM of the first side wall 34 and the second side wall 35
] The recess is formed between the grooves 2.2 on both sides of the groove 4 to be equal to or narrower than the predetermined width of the PJ, and
The width is set to be sufficient to allow the support base 15 of No. 0 or the blade portion of the cutting tool 17 to protrude diametrically outward from the outer peripheral surface of the annular member 31. A second notch 66 is provided on the outer peripheral surface of the annular portion 61.
opening at a position adjacent to the side wall 35 in the circumferential direction;
It has a central axis within a plane perpendicular to the axis of the annular member 31 including the opening, and the central axis connects to the inside of the second 1jllll wall 55, the second IIIj wall 35, or the inner wall 5 surface 32. A slanted screw 37 is cut through the portion, and a 1□ screw 38 is tightly screwed into the fitting hole 67. The direction of the central axis of the anchor hole 37 is the same as that of the notch 56 formed on the support base 15 of the cutting tool 10 by closely aligning the 1st 1j'l W 13 with the 1'th side wall 34 of the notch 56. Most preferably, the direction is perpendicular to the second 111j wall 14 formed on the four supports 15. An annular member 31 is located at a position axially apart from the lino notch 66 of the chestnut-shaped portion ze 31.
A thread 39 is formed by penetrating the plate material in the diametrical direction, and a fixing screw 40 is screwed into the thread 39. When the fixing screw 40 is turned and tightened, its tip comes into contact with the wall 5 of the groove 4 of the bar body 1, and the annular member 31 is fixed to the bar body 1. As shown in the figure, each of the adjusting screws 20, fixing screws 40, and tightening screws has a concave groove 41 with a hexagonal cross section on the surface perpendicular to the tidal direction. It is preferable that a tool or a driver having a hexagonal cross section be inserted into the groove 41 and rotated. The narrow-mouthed middle code 50 indicates the third blade provided on the hole bar, and the third blade 50 shown in the drawing has the same structure as the cutting tool 10 described above.
The same parts are indicated by the same reference numerals, and the explanation thereof will be omitted. Reference numeral 52 designates an auxiliary tool for fixing the cylindrical blade 50, which is integrally formed with a first piece 56 and a second cylindrical piece 54 forming a right-angled L-shape when viewed from the top. The first piece 53 is formed so that the radius of both side walls 2.2 of the groove 4 of the bar body 1 is the same in its longitudinal direction, and is fitted in the width direction of the groove 4, and the second piece 53 is fitted in the width direction of the groove 4. One side 55 of the piece 54 is formed on a surface that adheres to one side wall 2 of the cutting tool 10, and the other side is formed on the slope 56 of the cutting tool 10 with the same slope as the slope 2 of the cutting tool 10. The first piece 56 is brought into close contact with the front +1 self-wiping 14, and is passed through from the top surface to the bottom surface at the intersection with the B-S2 piece 54 of the first piece 56, and the concave groove 4
A mounting screw 58 is loosely inserted into a through hole 57 drilled vertically in the bottom wall 6 of the groove 4, and the mounting screw 58 is screwed into a hole 59 cut in the bottom wall 5 of the groove 4. and is configured to tighten the cutting AIJ tool 10 in that position through engagement between the slope 56 of the fixing aid 52 and the second side wall 14 of the cutting tool 10. In addition, the reference numeral 60 in the figure indicates the insulators for u, "SJ, l" which are fitted in Japanese style in the whisper holes pressed between the axial directions of the bar body 1 in the first piece 56 of the fixing IT aid 52. -L/II as blade 50! The tip is brought into contact with the end surface 21 of the ilJ cutting tool 10 to adjust the axial position of the bar body 1 of the cutting tool 10 in the axial direction M4. In the above embodiment, in order to attach the cutting tool 10 to the bar body 1, the fixing member 30 is fitted to the bar body 1, and the cutting tool 10 is recessed at a desired position in the axial direction of the bar body 1. The first side wall 16 of the support base 15 is inserted into the groove 4 .
is brought into close contact with one ig++yt 2 of the groove 4, and the fixed part 50 is slid to bring the first side wall 34 of the notch 3 to a position where it is flush with the side wall 2 of the groove 4. The fixing screw 40 is brought into close contact with the first side wall of the support base 15, and the fixing screw 40 screwed into the fixing member 50 is rotated so that its tip is brought into pressure contact with the bottom wall 6 of the full concave groove 4, thereby fixing the fixing member 3.
0 to the bar body 1. Next, by rotating the hl/'a screw 20 screwed onto the support base 15 of the cutting tool 10 and bringing its tip into contact with the bottom wall 6 of the groove 4, the cutting edge of the cutting tool 17 is removed. 18 in the diameter direction of the main body 1 1σ
Prepare the material and bring it to the molding site at a height of 1. Next, the tension screw 38 screwed onto the support base 15 of the cutting tool 10 is rotated so that its tip is pressed into contact with the second side wall 14 forming the slope formed on the support base 15. and,
The pressing force by the tightening screw 68 is the component force that presses the support base 15 of the cutting tool 10 against the side wall 2 of the groove 4 in the perpendicular direction and the bottom of the groove 4! 5, the cutting tool 10 is tightly held in that position. Then, due to the force of tightening the cutting tool 10 to the bar body 1 by the tightening adhesive 38, the support base 15 of the cutting tool 10 is moved to the first side wall 1 of the cutting tool 10.
Almost the entire surface of 5 is the side wall 2 of the groove 4 of the bar body 1 and the first 1 of the notch '5' of the identification member 50! II The wall soldier 10 will not fall off from the bar body 1O and the cutting tool 1
0 in the axial direction of the bar body 1 or to release the tension on the bar body 1 in order to remove it from the bar body 1, the tightening screw 38 and the fixing screw 40 are removed. Busy
IL in the opposite direction to lY Shizuku! This can be done easily by tightening the pressure and removing the pressure. As can be seen from the illustrated embodiment, the cutting blade 10 is a cartridge-type cutting tool in which the cutting tool 17 is fixed on the support base 15. By using the common ring shape and structure for both the cutting blades 1j and the support base 152, it is possible to tighten multiple cutting tools to the boring bar very easily and at any desired position, and the seventh parent This is something that can be done extremely easily. Note that the fixing screw 40 screwed into the center portion diametrically bent in the annular member 31 and the V screw 39 is not limited to the position axially distant from the notch @6'6 as shown in the figure. , can be arranged at a position t in the circumferential direction of the annular member b1.In particular, at a position t in the diametrical direction of the notch 66.
When the locking pin 40 is placed in a position facing the
The part of the notch 36 that corresponds to the same nucleus as the warrant officer 61 is "bar body 1".
(f) Effects of the invention The present invention comprises a boring bar main body, a cutting tool, and a fixing member, and One main body has at least one piece of U-shaped cross section cut parallel to the axial direction of the main body having side walls facing each other with an angle of θr in between, and the cutting tool cuts the side wall of A1 at the bottom. The second 11]s facing the 10th wall is formed almost perpendicular to the 10th wall and has a slope such that the width between it and the first wall gradually decreases from the bottom to the top. The support base is formed so that the width between the first and second side walls at the bottom of the bar is equal to or narrower than the predetermined width, and the identification member is attached to the outer periphery of the bar body. It has a cylindrical annular member with an inner circumferential surface having a diameter that closely fits the surface, and the annular member has a notch formed at one end in the axial direction, and a notch is formed in the axial direction of the notch. The extending first side wall is formed so as to be flush with one wall of the groove when the annular member is attached to the outer peripheral surface of the bar body. ] Aim the right side of the 7th Tsum 6tt at the paper joint of the 1st bar,
The first 1a11 hole is 8fi with a narrow 8-edge notch.
When the fabric is inserted into the concave groove on the wall of No. 1 and one of the convex walls of I'jU, the cloth is inserted into the concave groove as shown in Fig. 41. e, L are the entire concave surface 2 and the notch 1 of the annular member.
II.19- of Era 2, which can be screwed onto the cylindrical wall of the cylindrical wall, and is screwed onto the salt-like part, forming the slope of the support base by the tip of the fC burlap. When pressing, use a cutting tool r
Almost the entire surface of the dovetail wall of the support base 1 can be frictionally engaged with the bar body and the annular member returned to the bar body. It is reflected in the thread formed by penetrating the rear phase from the constant temperature of the outer surface that is very close to the second side of the notch in the axially inward direction of the second side wall. (Since it is tightened, the tightening screw I
The pressing force on the support base indicated by U is the component force in the direction perpendicular to the first N M of the support base and the component force in the direction of the support J1 in the direction of :ri tiff. , and the 1111 At support stand is the first 111! By creating a force that presses the l wall to the concave surface 1411- and the first side wall of the β material, and a force that presses the concave ril toward the wall, the support base is The blade is firmly tightened to the main body, and cutting resistance is applied to the blade fixed to the support stand.
+>r. Also, because the pressing force of the tightening screw is acting on the wide surface of the first mtl wall of the support base,
There is no risk that the support 8 will fall off at all times. Furthermore, the fixing member has an annular member formed of a plate-like material, and the inner circumferential surface thereof is formed into a shape that fits onto the outer circumferential surface of the main body of the bar. Since it is fixed to the main body of the bar by four fixing ladders attached to the screws formed by penetrating it, the tips of the fixing screws are used to connect the J+! of the main body of the bar.
Simply press the i1 side or the low wall of the concave groove to firmly attach the first i! of the notch to the bar body. The lI wall cooperates with the side wall of the concave I of the bar body to firmly support the supporting stand of the cut υ cutting tool. However, according to the present invention, during the return of the main body of the bar, it can be easily tightened at any arbitrary position in the axial direction of the bar without resting using the full rotation member of the force tool R1j. The axial position of the cutting edge of the cutting tool can be easily cocooned, and it is also extremely easy to remove the cutting tool from the bar body. The degree of protrusion in the forward direction relative to the support base can also be adjusted very easily by adjusting screws inserted into holes formed through the support base at the top and bottom necks. Therefore, the present invention provides a boring bar to which a third blade is fixed,
The cutting tool for the second blade and subsequent machining! Ki1 direction and radial position kfEl: In addition to being an extremely excellent invention that cannot be ignored, it is also used for attaching the 1st and 2nd blades. In addition, in the present invention, if the concave curve f'y' is formed on the bar body, and if the groove is formed, the cutting tool after the third blade can be rotated 10,000 times around the bar body.
It can be used to cut the first and second side walls of the annular member of the fixed member in the I direction. If the width of the bottom of the bar is narrower than the width of the bottom of the bar, the M11 cutting blade can be removed from the bar body without tightening or removing the cutting tool from the bar body. It is important to prevent unforeseen disasters.

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

第１！ｇｌｉｄ本児側の一実施例の要部の上面図、第２
１％Ｊ＋はその一部を９１略した一部入戚仰ｊ面図、第
乙なお図中　１ｉｌ′ｉボ一リングバ一本体４はそのＨ
４ ２はその側壁 １０は切削刃具 １５はその支持台 １３はその第１の側壁 １４はその抛２の側壁 ２０は調５月尋子 ３０は固定部羽 ３６（はその切欠き ３４はその第１の側壁 ３５ｄ゛その第２の側壁 ３８は系締用稍々子 ４０はｌＩイ５Ｉ定川用子 ｔそｘ’−Ｌそれ示すも（・′・−（ｊ　；Ｉ＋・る。 翁計出顔人　１↓ｊ除工１歿株式会社 代理人　］Ｐ’ｊＵ士　鈴　木　昌　吸−□′ｉ、・−
： 第　１　図 第２図 第　３　図 第　４　図1st! A top view of the main parts of an example of the main child side of glid, the second
1%J+ is a partial elevational view with part of it omitted at 91.
4 2 is the side wall 10 of the cutting tool 15 , the support base 13 is the first side wall 14 of the harpoon 2 , the side wall 20 of the harpoon 2 is the side wall 10 of the blade 30 is the fixed part wing 36 (the cutout 34 is the first The side wall 35d゛The second side wall 38 shows the system tightening force 40 is lIi5I Sadagawa Yokotsox'-L. Face person 1↓j 1↓j 1 歿 Co., Ltd. agent] P'jU Shi Suzuki Masa Su-□'i,・-
: Figure 1 Figure 2 Figure 3 Figure 4

Claims (1)

【特許請求の範囲】 円筒状のバ一本体の外周面に、所定の幅を隔て平行に対
向するｉＩ！Ｕ　壁を４１丁記バ一本体の軸方向に平行
に配設した吠面コ字状の凹溝を少くとも１個刻設したボ
ーリングバ一本体と、 底部の幅を前記バ一本体に刻設した凹１１１１記所定の
幅に等しいかこれよシ狭い１而とし、そのｌ陥方向両端
部に延在する両側壁のうち第１の側壁を減するような斜
面にそれぞれ形成した支持台と、該支持台の頂部より上
方に刃部を位置せしめるようにｈｊＪ記支持台にｔυ着
された刃具と、前記支持台に前記第１の側壁と平行な軸
を中心として前記支持台の底部にほぼ圭直にＴｊ４部か
ら貫通せしめて形成した線孔にＮら縫用螺子を螺装せし
めた切削刃具と、 板状材により内周部の住・とば＋Ｈ記バ一本１仝の外周
面に輩に妖合する径としだ円１ｊ状に形成で７ｔ、その
軸方向の一端ＡＨにはその周万同の１面が＋ｉｉＪ記バ
ーホバ一本体した凹溝の１Ｊｄ記所定のｌｌ’ｉｊｆと
等しいかこれより狭い幅であって、その萌口万１司ｇ　
（３ニする両１＋１１１壁のうち第１の′１．１Ｉｌｌ
壁を１’ｉｌＪ記バーギ１不の１再の身１１の側壁と平
行に形成した切欠きｒ形成した環状部材と、前記環状部
側にその切欠きの纂２の仙］璧に極めて近接した前記環
状部材の外表面の位置から前記第２の１則確の径方向内
方の面に向けて貫通−σ−しめて形成した螺装に咄゛装
せしめた緊締用螺子と、前記集状部利にその＊ｔａＸ径
方回に貫通形成した螺装に螺装せしめた固定用孫子とを
イ１するｌ’ｌ　矩郁祠とから成り、 前記切削刃具を前記ボーリングバ一本体の口碑にその支
持台頂部をバ一本体の外周面より矢高させかつその第１
の仙ｊムＶ：を前記凹イ再の第１の狙り壁に缶着せしめ
て挿置し、前ｂピバ一本体の外周に低伸せしめた固建部
材の切欠さの第１のｉ＋ｆｌｌ堅をＮｔｌ　ｇじ切削刃
具の第１の側壁に密ｆｆせしめ、固定ノもｕ子の先４部
を前記バ一本体に圧接せしめて固定部材全前記バ一本体
に「Ｍ層するとともに、前記緊締用螺子の先端部をがＪ
記切削刃具の支持台の第２の側壁に圧接せしめて前記切
削工具をバ一本体に緊締せしめるようにしたことを特徴
とするボーリングバーの刃具取付装置。[Claims] iI! parallel to and facing the outer peripheral surface of the cylindrical bar main body with a predetermined width apart. U A boring bar body with at least one U-shaped concave groove arranged parallel to the axial direction of the bar body, and the width of the bottom part cut into the bar body. The provided recess 1111 has a width equal to or narrower than a predetermined width, and a supporting stand formed on a slope such that the first side wall of both side walls extending in the recess direction is reduced. , a cutter attached to the support base such that the blade is positioned above the top of the support base, and a cutter attached to the support base about an axis parallel to the first side wall at the bottom of the support base. A cutting tool in which an N-shaped sewing screw is screwed into a wire hole formed by penetrating almost directly from the Tj 4 part, and a plate-shaped material to form a hole on the inner periphery + one H-shaped bar on the outer periphery. Formed in the shape of an ellipse 1j with a diameter that matches the surface, it is 7t, and at one end AH in the axial direction, one side of its circumference is equal to 1Jd prescribed ll'ijf of the concave groove formed by +iiJ barhoba body. or narrower than this, and its opening is narrower than this.
(1st '1.1Ill of 3 2nd both 1 + 111 walls)
An annular member having a notch r formed in the wall parallel to the side wall of the body 11 of the body 11 of the wall, and the end of the notch 2 on the side of the annular portion is very close to the wall. a tightening screw inserted into a thread formed by passing through and tightening from the outer surface of the annular member toward the second radially inner surface; and the collecting portion. In addition, it consists of a fixing screw screwed into a screw formed through the *taX radial direction, and the cutting tool is attached to the base of the boring bar body. The top of the support base is higher than the outer peripheral surface of the bar body, and the first
The first target wall of the concave plate is fitted and inserted into the first target wall of the concave part, and the first part of the notch of the solid construction member that is made to have a low elongation on the outer periphery of the main body of the front b. Tightly press the I+Fll stiffener against the first side wall of the cutting tool, and press the tip 4 of the fixing nozzle against the bar body to form an "M layer" on the bar body. The tip of the tightening screw is J
A cutting tool mounting device for a boring bar, characterized in that the tool is pressed against a second side wall of a support base of the cutting tool to tighten the cutting tool to the bar body.