JPH01171707A - Boring bar - Google Patents
Boring barInfo
- Publication number
- JPH01171707A JPH01171707A JP62327441A JP32744187A JPH01171707A JP H01171707 A JPH01171707 A JP H01171707A JP 62327441 A JP62327441 A JP 62327441A JP 32744187 A JP32744187 A JP 32744187A JP H01171707 A JPH01171707 A JP H01171707A
- Authority
- JP
- Japan
- Prior art keywords
- cartridge
- hole
- balance weight
- boring bar
- shaft
- 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.)
- Pending
Links
- 229920001875 Ebonite Polymers 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B29/00—Holders for non-rotary cutting tools; Boring bars or boring heads; Accessories for tool holders
- B23B29/03—Boring heads
- B23B29/034—Boring heads with tools moving radially, e.g. for making chamfers or undercuttings
- B23B29/03403—Boring heads with tools moving radially, e.g. for making chamfers or undercuttings radially adjustable before starting manufacturing
- B23B29/03425—Boring heads with tools moving radially, e.g. for making chamfers or undercuttings radially adjustable before starting manufacturing by means of gears and racks
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
- B23Q11/0032—Arrangements for preventing or isolating vibrations in parts of the machine
- B23Q11/0035—Arrangements for preventing or isolating vibrations in parts of the machine by adding or adjusting a mass, e.g. counterweights
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Cutting Tools, Boring Holders, And Turrets (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
この発明は、中ぐり盤、フライス盤、マシニングセンタ
等に取付けて工具を回転させて穴径を仕上げるために用
いらｎるボーリングバーに関する。DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention relates to a boring bar that is attached to a boring machine, milling machine, machining center, etc. and used to rotate the tool and finish the diameter of a hole.
（従来の技術）
従来から用いら几てきたボーリングバー＋１１は、第３
図に示すように、一端が機械の主軸に取付けら几るテー
パシャンクαηとなっており、他端には切刃αＯを形成
したカートリッジ（２）が取付けら１ている。図示しな
い機械の主軸に回転を与えるとボーリングバー【１）が
回転し、こｎに伴ってカートリッジ先端に設けら几た切
刃ＣＩＧが回転して加工物の穴径を仕上げるようになっ
ている。ま友、カートリッジは加工物の仕上寸法に応じ
て任意の寸法に径方向に動かして調整することができる
。(Prior art) The boring bar +11, which has been used conventionally, is
As shown in the figure, one end is a tapered shank αη that is attached to the main shaft of the machine, and the other end is attached to a cartridge (2) having a cutting edge αO formed therein. When the main shaft of the machine (not shown) is rotated, the boring bar [1] rotates, and along with this, the sharp cutting blade CIG provided at the tip of the cartridge rotates to finish the hole diameter of the workpiece. . Well, the cartridge can be adjusted by moving it in the radial direction to any size depending on the finished size of the workpiece.
（当該発明が解決しようとする問題点）しかし、このよ
うなカートリッジ式のボーリングバーでは寸法調整のた
めにカートリッジを径方向に移動させると、予め調整し
てあっｔ回転パランスが狂ってしまう。そのため寸法調
整の都度回転バランスを測定し、重い個所を削除するな
どして回転バランスを出し直す必要がある。しかも、こ
の作業は非常に厄介で時間がかかる・（問題点を解決す
るｔめの手段）
この発明はボーリングバーの軸心を通り貫通しｔカート
リッジ穴と平行に貫通穴を穿設し、貫通穴にバランスウ
ェイトを進退可能に挿入し、カートリッジ穴と貫通穴と
の間に両穴に対し軸直角方向に回動可能に係合軸を設け
ると共に、カートリッジおよびバランスウェイトにおね
じを設け、各雄ねじを係合軸に係合させｔことにより、
寸法調整のためカートリッジを径方向に動かした分だけ
自動的にバランスウェイトが動き、回転バランス全保つ
ようにしたものである。(Problems to be Solved by the Invention) However, in such a cartridge-type boring bar, when the cartridge is moved in the radial direction for dimensional adjustment, the rotational balance that has been adjusted in advance is thrown out of order. Therefore, it is necessary to measure the rotational balance each time the dimensions are adjusted, and to re-establish the rotational balance by removing heavy parts. Moreover, this work is extremely troublesome and time-consuming. A balance weight is inserted into the hole so that it can move back and forth, an engagement shaft is provided between the cartridge hole and the through hole so that it can rotate in a direction perpendicular to the axis of both holes, and a screw is provided on the cartridge and balance weight, and each By engaging the male screw with the engagement shaft,
When the cartridge is moved in the radial direction for dimension adjustment, the balance weight automatically moves to maintain perfect rotational balance.
（作 用）
本発明に係るボーリングバーにおいて、回転バランスを
取るにはまずカートリッジ（２）とバランスウェイ）
（５）’を任意の位置関係にセットし、ボーリングバー
（１）の回転バランスを測定する。(Function) In the boring bar according to the present invention, in order to balance the rotation, first, the cartridge (2) and the balance way) are used.
(5) Set '' in an arbitrary positional relationship and measure the rotational balance of the boring bar (1).
次いで、所定の方法に従いカー） ＩＪッジ（２）を動
かしセットする。その時バランスウェイトもカートリッ
ジと同じ量動く。その状態で回転バランスを測定する。Next, move and set the car IJ jig (2) according to the prescribed method. At that time, the balance weight also moves the same amount as the cartridge. In this state, measure the rotational balance.
測定値が前回の測定値と変化しなけ一几ば調整の要はな
いが、変化した場合は測定値の差の分だけバランスウェ
イトのみを径方向に動がしてバランスを調整する。この
場合、バランスウェイト（５）を回せばバランスウェイ
ト（５）ど係合軸は雄ねじとセレーションの噛合であり
、カートリッジはボーリングバーに固定されているから
バランスウェイトのみポーリングの径方向に動くことに
なる。このようにしてカートリッジ（２）ヲ径方向に動
かしても回転バランスが変化しない関係位置にしてから
ボーリングバー全体の回転バランス取リングとなる。If the measured value does not change from the previous measured value, there is no need for adjustment, but if it does, the balance is adjusted by moving only the balance weight in the radial direction by the difference in the measured value. In this case, when the balance weight (5) is turned, the engagement shaft of the balance weight (5) is the engagement of the male screw and the serrations, and since the cartridge is fixed to the boring bar, only the balance weight moves in the radial direction of the polling. Become. In this way, the cartridge (2) is brought into a position where the rotational balance does not change even if the cartridge (2) is moved in the radial direction, and then becomes the rotational balance ring for the entire boring bar.
へ
（実施例〕
次に、この発明の実施例を図面について説明するＧ
この発明に係るカートリッジ式のボーリングバー（ｌ）
は第３図に示すものと同様に１端に使用する機械の主軸
（図示せず）に取り付けらｎるテーパシャンクＣ１時が
設けら几、他端にカートリッジ（２）が取り付けら几て
おり、機械の主軸の回転に伴いボーリングバーを回転さ
せカートリッジの先端に設けられている切刃αＯにより
加工物の穴径を仕上げる切削工具となる。(Example) Next, an example of the present invention will be explained with reference to the drawings.
Similar to the one shown in Fig. 3, one end has a tapered shank C1 attached to the main shaft (not shown) of the machine used, and the other end has a cartridge (2) attached. This is a cutting tool that rotates the boring bar as the main shaft of the machine rotates, and finishes the hole diameter of the workpiece using the cutting blade αO provided at the tip of the cartridge.
第１図はこの考案に係るボーリングバーの先端を示すも
のである。ボーリングバー（１）の先端にはボーリング
バーの軸心（Ａ−Ａ）に対し斜めに貫通するカートリッ
ジ穴（６）が穿設され、さらに紋穴に長手方向に一対の
キー溝α３が形成さ几ると共に、紋穴の先端側開口部に
テーパ部α４、他端側の開口部に座ぐり穴αうが設けら
几ている。FIG. 1 shows the tip of the boring bar according to this invention. A cartridge hole (6) is drilled at the tip of the boring bar (1) and extends obliquely to the axis (A-A) of the boring bar, and a pair of key grooves α3 are formed in the longitudinal direction of the hole. In addition, a tapered portion α4 is provided at the opening on the tip side of the crest hole, and a counterbore hole α is provided at the opening on the other end side.
さらに、カートリッジ穴（２）に挿通さ几るカートリッ
ジ（２）には外周に雄ねじＱ時が後端には一対のキー（
イ）が設けら几ており、キー（イ）はカートリッジ穴α
のに形成さ几°たキー溝ηに係合し、カートリッジ（２
）がカートリッジ穴（６）に嵌挿さ′ｎｎ待時回転るこ
となくボーリングバー（１）の径方向にスムースに動く
ことが出来る。テーパナツト（３）はカートリッジ穴α
２の先端側開口部にあって、カー） ＩＪッジの雄ねじ
（財）にねじ込ま几、テーパナツトのテーパ部０υがボ
ーリングバー本体のテーパ部α４と密着するように仕上
げら凡ている・固定ねじ（４）は本体（１）の座ぐり穴
α５から挿入され、カートリッジ（２）の後端に長手方
向に設けらｎｆｒ−雌ねじ器にねじ込ま几、座ぐり穴の
底面α力に接してカー） ＩＪッジ（２）全引張って、
カートリッジ（２）の雄ねじ（財）にねじ込ま几ている
テーパナツト（３）のテーパ部０１）全本体（１）のテ
ーパ部α４に強く引張って、両者を密着させてカートリ
ッジ（２）全固定する。カートリッジ（２）の寸法調整
をする場合には固定ねじ（４）を緩めてから、テーパナ
ツト（３）を廻しカートリッジ（２）全ボーリングバー
の径方向に出入りさせて行なうようになっている。Furthermore, the cartridge (2) that is inserted into the cartridge hole (2) has a male screw Q on the outer periphery and a pair of keys (on the rear end).
A) is provided, and the key (A) is the cartridge hole α.
The cartridge (2) engages with the key groove η formed in the
) is fitted into the cartridge hole (6) and can move smoothly in the radial direction of the boring bar (1) without rotating during waiting. Taper nut (3) is cartridge hole α
The fixing screw is located at the opening on the tip side of 2 and is screwed into the male thread of the IJ jig, and is finished so that the taper part 0υ of the taper nut comes into close contact with the taper part α4 of the boring bar body. (4) is inserted through the counterbore hole α5 of the main body (1), is screwed into the NFR-female threader provided in the longitudinal direction at the rear end of the cartridge (2), and is in contact with the bottom surface of the counterbore hole α). IJ edge (2) fully pulled,
The tapered part 01 of the taper nut (3) screwed into the male thread of the cartridge (2) is strongly pulled against the taper part α4 of the main body (1) to bring them into close contact and completely fix the cartridge (2). When adjusting the dimensions of the cartridge (2), loosen the fixing screw (4) and then turn the taper nut (3) to move the cartridge (2) in and out of the entire boring bar in the radial direction.
この部分は、第３図に示す従来のカートリッジ式のボー
リングバーに採用さｎている構造である。This part has a structure adopted in the conventional cartridge type boring bar shown in FIG.
さらに、カートリッジ穴（６）と平行に貫通穴αＱが設
けら几、紋穴にバランスウェイト（５）が挿入さ几る。Further, a through hole αQ is provided in parallel with the cartridge hole (6), and a balance weight (5) is inserted into the hole.
まｔｌ バランスウェイトの１端にカートリノジの外周
雄ねじＱηとピッチが等しい雄ねじ（５１）が設けら１
ており、貫通穴αＱにしつくＶ）嵌合し、該大円をスム
ーズに動くように仕上げら几ている。A male thread (51) having the same pitch as the outer circumferential male thread Qη of the cart rod is provided at one end of the balance weight.
It is finished so that it fits tightly into the through hole αQ and moves smoothly around the large circle.
カートリッジ（２）とバランスウェイト（５）の間にセ
レーＱ１）とバランスウェイト（５）の雄ねじ（５１）
の両方に噛み合う。尚セレーション軸（６）は図示して
いないが自由に回転はするが長手方向には動かないよう
本体（１］に取り付けら几ている。Between the cartridge (2) and the balance weight (5), insert the sere Q1) and the male thread (51) of the balance weight (5).
It meshes with both. Although the serration shaft (6) is not shown, it is attached to the main body (1) so that it can rotate freely but cannot move in the longitudinal direction.
さらに、第２図に示す第２の実施例は、上記実施例にお
けるセレーション軸（６） 、 （６１）に代えて、カ
ートリッジ（２）とバランスウェイト（５）の間に軸直
角方向に係合軸（６２）を回転可能に装入すると共に、
該軸の外周に硬質ゴムや合成樹脂などの弾性比類の弾性
リング（７）を嵌着し友ものを用いたものである。カー
トリッジ（２）の雄ねじｅｌ）とバランスウェイトの雄
ねじ（５１）はそｎぞ几弾性リング（７）に喰い込んで
おり、パックラッシを無くしている。このため、カート
リッジの僅かな動きでも正確にバランスウェイトに伝わ
るようになっている。Furthermore, in the second embodiment shown in FIG. 2, instead of the serration shafts (6) and (61) in the above embodiment, the serration shafts (6) and (61) are engaged between the cartridge (2) and the balance weight (5) in a direction perpendicular to the axis. While rotatably inserting the shaft (62),
An elastic ring (7) made of hard rubber or synthetic resin is fitted around the outer periphery of the shaft. The male thread (el) of the cartridge (2) and the male thread (51) of the balance weight are bitten into the elastic ring (7), eliminating pack lash. Therefore, even the slightest movement of the cartridge is accurately transmitted to the balance weight.
ざらに、第４図に示すものはカートリッジ穴αカをボー
リングバーの軸心（Ａ−ｐ、）に対して直交させて穿設
し之場合の要部の断面図であり第５図は正面図を示す。Roughly speaking, what is shown in Fig. 4 is a sectional view of the main part when the cartridge hole α is drilled perpendicularly to the axis (A-p) of the boring bar, and Fig. 5 is a front view. Show the diagram.
構造は第１図に示すものと同一であるので、詳細説明は
省略する。Since the structure is the same as that shown in FIG. 1, detailed explanation will be omitted.
なお、バランスの狂いの小ないカートリッジの径方向の
調整を可能にするためには、カー） ＩＪツジとバラン
スウェイトの直径をほぼ同一にしておくとよいが、本発
明の対象はこのことに限定さ几ない口
（効 果）
この発明に係るカートリッジ式のボーリングバーは、上
述のようにカー） ＩＪッジ穴と平行に穿設さ几た貫通
穴にバランスウェイトを挿入し、両穴の間に軸直角方向
に回転可能に設けら几た係合軸（スプライン、弾性リン
グ）とバランスウェイトとカートリッジの６雄ねじと係
合させたので、寸法調整のためカー） ＩＪッジを径方
向に動かしても回転バランスが狂わない。したがって寸
法調整後の回転バランス取り作業が不要となった。In addition, in order to enable radial adjustment of the cartridge with little imbalance, it is preferable to make the diameters of the car IJ joint and the balance weight almost the same, but the scope of the present invention is not limited to this. (Effect) The cartridge type boring bar according to the present invention, as described above, has a balance weight inserted into a neat through hole drilled parallel to the IJ hole, and a balance weight inserted between the two holes. The engagement shaft (spline, elastic ring), which is rotatable in the direction perpendicular to the shaft, is engaged with the balance weight and the 6 male screws of the cartridge. The rotational balance will not be disturbed even if Therefore, it is no longer necessary to perform rotational balancing work after dimension adjustment.
第１図はこの発明の実施例の要部断面図、第２図はこの
考案の他の実施例の要部断面図、第３図は同正面図、第
４図は本発明の他の実施例の要部断面口、第５図は同正
面図である。
２・・・カートリッジ ５・・・バランスウェイト６
・・・係合軸６１・・・セレーション６２・・・係合軸
７・・・弾性リングｌＯ・・・切 刃
１６・・・貫通穴Ａ−Ａ・・・ボーリングバーの軸
心
代理人 弁理士 河 内 潤 二
第４図FIG. 1 is a sectional view of a main part of an embodiment of the invention, FIG. 2 is a sectional view of a main part of another embodiment of the invention, FIG. 3 is a front view of the same, and FIG. 4 is a sectional view of another embodiment of the invention. FIG. 5 is a front view of the cross-sectional opening of the main part of the example. 2...Cartridge 5...Balance weight 6
... Engagement shaft 61 ... Serrations 62 ... Engagement shaft 7 ... Elastic ring lO ... Cutting blade
16... Through hole A-A... Boring bar axis center agent Patent attorney Jun Kawachi 2 Fig. 4
Claims (3)
挿入され、かつ先端に切刃を形成したカートリッジを取
付けたボーリングバーにおいて、前記カートリッジ穴と
平行に貫通穴を穿設し、該貫通穴にバランスウェイトを
進退可能に挿入し、カートリッジ穴と貫通穴との間に両
穴に対し軸直角方向に回動可能に係合軸を設けると共に
、カートリッジおよびバランスウエイトにおねじを設け
、各雄ねじを前記係合軸に係合させたことを特徴とする
ボーリングバー。(1) In a boring bar fitted with a cartridge that is adjustably inserted into a cartridge hole passing through the shaft center and having a cutting edge formed at the tip, a through hole is bored parallel to the cartridge hole, and the through hole is A balance weight is inserted so that it can move forward and backward, and an engagement shaft is provided between the cartridge hole and the through hole so that it can rotate in a direction perpendicular to the axis with respect to both holes. is engaged with the engagement shaft.
ジとバランスウェイトの各雄ねじは同一ピッチを有する
特許請求の範囲第１項記載のボーリングバー。(2) The boring bar according to claim 1, wherein the engagement shaft is a serration shaft, and the male threads of the cartridge and balance weight have the same pitch.
請求の範囲第１項記載のボーリングバー。(3) The boring bar according to claim 1, wherein the outer periphery of the engagement shaft is formed of an elastic body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62327441A JPH01171707A (en) | 1987-12-25 | 1987-12-25 | Boring bar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62327441A JPH01171707A (en) | 1987-12-25 | 1987-12-25 | Boring bar |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01171707A true JPH01171707A (en) | 1989-07-06 |
Family
ID=18199204
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62327441A Pending JPH01171707A (en) | 1987-12-25 | 1987-12-25 | Boring bar |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01171707A (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0624805U (en) * | 1992-08-26 | 1994-04-05 | 大沢精工株式会社 | Drilling tool |
| EP0804984A1 (en) * | 1996-05-02 | 1997-11-05 | Heinz Kaiser AG | Boring head |
| JP2006305723A (en) * | 2005-04-26 | 2006-11-09 | Heinz Kaiser Ag | Boring tool |
| EP1749617A1 (en) * | 2005-08-04 | 2007-02-07 | Fanuc Ltd | Rotating body balancing structure |
| DE102007004383A1 (en) * | 2007-01-29 | 2008-07-31 | Sandvik Intellectual Property Ab | Boring tool, has tool base that includes clamping device, where base is elastically deformable by using clamping device, such that tool carrier and counter weight are clamped in boreholes |
| WO2008092751A1 (en) * | 2007-01-29 | 2008-08-07 | Sandvik Intellectual Property Ab | Counterbalanced boring tool |
| WO2011051355A1 (en) * | 2009-10-29 | 2011-05-05 | Wohlhaupter Gmbh | Precision turning tool |
| KR101036049B1 (en) * | 2009-03-18 | 2011-05-19 | 한국항공우주산업 주식회사 | Hole processing tool |
| JP2011104699A (en) * | 2009-11-16 | 2011-06-02 | Jtekt Corp | Boring holder |
| CN108161043A (en) * | 2017-12-29 | 2018-06-15 | 松德刀具（长兴）科技有限公司 | Automatic dynamic balance boring cutter and application method |
-
1987
- 1987-12-25 JP JP62327441A patent/JPH01171707A/en active Pending
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0624805U (en) * | 1992-08-26 | 1994-04-05 | 大沢精工株式会社 | Drilling tool |
| EP0804984A1 (en) * | 1996-05-02 | 1997-11-05 | Heinz Kaiser AG | Boring head |
| US5909986A (en) * | 1996-05-02 | 1999-06-08 | Heinz Kaiser Ag | Boring head with simultaneous clamping |
| EP1716950A3 (en) * | 2005-04-26 | 2010-07-07 | Heinz Kaiser AG | Boring tool |
| JP2006305723A (en) * | 2005-04-26 | 2006-11-09 | Heinz Kaiser Ag | Boring tool |
| EP1749617A1 (en) * | 2005-08-04 | 2007-02-07 | Fanuc Ltd | Rotating body balancing structure |
| US8506211B2 (en) | 2007-01-29 | 2013-08-13 | Sandvik Intellectual Property Ab | Counterbalanced boring tool |
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