JPS583605Y2 - Cutting tools - Google Patents

Description

【考案の詳細な説明】 本考案は切削加工用工具に係り、更に詳しくは切削片の
取付は位置調整機構に関するものである。[Detailed Description of the Invention] The present invention relates to a cutting tool, and more specifically relates to a position adjustment mechanism for attaching a cutting piece.

従来の切削加工用具は、第１図に示すように。A conventional cutting tool is shown in FIG.

切削片１を所要の手段で先端に固着した切削片保持体２
を、工具本体３の半径方向に設けられた嵌合部３ａに嵌
め込んで取付はボルト４により工具本体３に固着し、穴
加工寸法の調整は切削片保持体２の根端部に配設された
調整ねじ５を操作して行うように構成されている。Cutting piece holder 2 with cutting piece 1 fixed to the tip by a required means
is fitted into the fitting part 3a provided in the radial direction of the tool body 3, and fixed to the tool body 3 with bolts 4. Adjustment of hole machining dimensions is arranged at the root end of the cutting piece holder 2. This is done by operating the adjusted adjustment screw 5.

ところが、この従来の切削加工用工具においては、工具
本体３に複数の切削片１を取り付けて穴加工する場合、
加工穴径の調整は前述の通り可能であるが、切削片１を
工具本体３の軸方向に動かして、基準面３ｂに対する嵌
合部３ａの位置的誤差、切削片保持体２や切削片１の製
作誤差等を吸収し、第１図に記入されたｊｌ、４２等の
寸法を正確に保つことが非常に困難である。However, in this conventional cutting tool, when drilling a hole by attaching a plurality of cutting pieces 1 to the tool body 3,
The diameter of the machined hole can be adjusted as described above, but by moving the cutting piece 1 in the axial direction of the tool body 3, the positional error of the fitting part 3a with respect to the reference surface 3b, the cutting piece holder 2 and the cutting piece 1 can be adjusted. It is extremely difficult to absorb manufacturing errors and maintain the dimensions of jl, 42, etc. drawn in FIG. 1 accurately.

この欠点は、工具本体３（こ対する切削刃１の取付数と
要求精度が年々厳しくなっている現状を考え合せると極
めて太きい。This drawback is extremely serious considering the current situation where the number of cutting blades 1 attached to the tool body 3 and the required accuracy are becoming stricter year by year.

この点、切削半径のみならず、切削長手寸法をも調整、
つまり二次元的に調整可能な切削工具も知られている。In this regard, not only the cutting radius but also the cutting longitudinal dimension can be adjusted.
In other words, two-dimensionally adjustable cutting tools are also known.

その切削工具における切削長手寸法の調整については、
バイトホルダを偏心スＩＪ−ブによって保持し、その偏
心スリーブを回動させることによりバイトホルダを半径
方向へ偏心移動させるようにしている（実公昭５２−５
１３５６号公報参照）。Regarding the adjustment of the cutting longitudinal dimension of the cutting tool,
The tool holder is held by an eccentric sleeve, and by rotating the eccentric sleeve, the tool holder is moved eccentrically in the radial direction.
(See Publication No. 1356).

ところでその技術にあっては、■工具本体に対する偏心
スリーブの嵌合をテーパ嵌合としており。By the way, in this technology, ■ the fitting of the eccentric sleeve to the tool body is a taper fitting.

また■偏心スリーブの回動に伴なってバイトホルダが回
動されることを防ぐための手段として バイトホルダの
軸心とは離れた位置に回り止めピンを設ける方法を採っ
ている。In addition, as a means to prevent the tool holder from rotating due to the rotation of the eccentric sleeve, a method is adopted in which a locking pin is provided at a position away from the axis of the tool holder.

この結果、このような先行技術にあっては、■偏心スリ
ーブの嵌合部分にくさび作用が生じ、偏心スリーブの回
動による調整にきわめて大きな力を加えなければならな
いという問題、また０７回り止めピンと偏心スリーブと
がピンをスライダ、偏心スリーブをクランクとしたクラ
ンク機構を構成するため、偏心スリーブの回動とともに
切刃角度が変化し、切削性能を変化させるという問題、
がそれぞれ否めない。As a result, in such prior art, there is the problem that (1) a wedge effect occurs in the fitting part of the eccentric sleeve, and an extremely large force must be applied to adjust the rotation of the eccentric sleeve; Since the eccentric sleeve forms a crank mechanism in which the pin is the slider and the eccentric sleeve is the crank, the cutting edge angle changes as the eccentric sleeve rotates, changing the cutting performance.
Both are undeniable.

本考案は、このような先行技術における問題をも考慮し
上記従来の欠点を完全に除去し、無研摩低精度品から研
摩高精度品までのあらゆる種類の切削片に適用でき、か
つ高精度で調整幅が大きく。The present invention takes into consideration the problems of the prior art, completely eliminates the above-mentioned drawbacks of the conventional technology, and can be applied to all types of cutting pieces, from unpolished low-precision products to polished high-precision products, and is highly accurate. Large adjustment range.

その調整操作が容易な切削加工用工具の提供を目的とす
るもので、切削片保持体を螺着した突出量調整環を、軸
方向用調整環に偏心状態で嵌合し。The purpose of this tool is to provide a cutting tool that is easy to adjust, in which a protrusion adjustment ring with a cutting piece holder screwed onto it is eccentrically fitted into an axial adjustment ring.

切削片保持体に対する突出量調整環の回動、及び切削片
保持体に対する軸方向用調整環の回動で。By rotating the protrusion adjustment ring relative to the cutting piece holder and rotating the axial adjustment ring relative to the cutting piece holder.

保持体に取り付けられた切削片の突出量、及び工具本体
の軸方向に対する切削片の取付位置を調整できるように
したことを特徴とする 特に１本考案にあっては、■前記偏心スリーブに相当す
る軸方向用調整環を、工具本体に対して円筒嵌合とした
こと、および■この軸方向用調整環の回動時に、切削片
保持体を自らを中心としてＸ、Ｙ２軸方向に変位させる
ようにしたこと、に主特徴がある。One device in particular is characterized in that the amount of protrusion of the cutting piece attached to the holder and the attachment position of the cutting piece with respect to the axial direction of the tool body can be adjusted. The axial adjustment ring is cylindrically fitted to the tool body, and ■ When the axial adjustment ring rotates, the cutting piece holder is displaced in the X and Y directions with itself as the center. The main feature is that it is made like this.

これらの構成上の特徴により１本考案によれば、小さな
力で軸方向用調整項を回動することができ、しかもそう
した調整を行なったとしても切刃角度をほとんど変化さ
せないという優れた効果を得ることができる。Due to these structural features, the present invention has the excellent effect that it is possible to rotate the axial adjustment element with a small force, and the cutting edge angle hardly changes even when such adjustment is made. Obtainable.

以下にこの考案を図面について説明する。This idea will be explained below with reference to the drawings.

第２図ないし第５図は本考案の一実施例を示すもので、
１０は工具本体である。Figures 2 to 5 show an embodiment of the present invention.
10 is a tool body.

この工具本体１０には工具本体１０の一側の面に開口す
る嵌挿孔１０ａと他側の面に開口する窩孔１０ｂ及び嵌
挿孔１０ａと 孔１０ｂとを相互に連通ずる連通孔１０
ｃとが設けられている。This tool body 10 has a fitting hole 10a that opens on one side of the tool body 10, a socket hole 10b that opens on the other side, and a communication hole 10 that allows the fitting hole 10a and the hole 10b to communicate with each other.
c is provided.

上記嵌挿孔１０ａの横断面形状は真円で、この嵌挿孔１
０ａには軸方向用調整環１１が回転自在に嵌め込まれて
いる。The cross-sectional shape of the insertion hole 10a is a perfect circle, and this insertion hole 1
An axial adjustment ring 11 is rotatably fitted into Oa.

軸方向用調整環１１は切削片保持体１２の第二軸部１２
Ｃを軸着する軸孔１１ａと突出量調整環１３が嵌合され
る嵌合孔１１ｂとを有する。The axial adjustment ring 11 is connected to the second shaft portion 12 of the cutting piece holder 12.
It has a shaft hole 11a to which C is mounted, and a fitting hole 11b into which the protrusion amount adjustment ring 13 is fitted.

上記軸孔１１ａと嵌合孔１１ｂとは共に真円に形成され
、第３図に示されるように中心０１を軸方向用、Ｅ 調整環１１の中心ＯかＬ−）７だけ離して偏心状態で軸
方向用調整環１１に穿設されている。Both the shaft hole 11a and the fitting hole 11b are formed in perfect circles, and as shown in FIG. is bored in the axial adjustment ring 11.

上記嵌合孔１１ｂに嵌合される突出量調整環は切削片保
持体１２の第一軸部１２ａが軸着される軸孔１３ａと切
削片保持体１２の螺子部１２ｂが螺着される螺子孔１３
ｂとを有する。The protrusion amount adjustment ring fitted into the fitting hole 11b has a shaft hole 13a into which the first shaft portion 12a of the cutting piece holder 12 is attached, and a screw into which the threaded portion 12b of the cutting piece holder 12 is screwed. Hole 13
It has b.

切削片保持体１２は先端部に所要の手段で切削片１４を
固着し、根端部は平行な二面１２ｄ、１２ｄを持つ回止
め軸部１２ｅに形成されている。The cutting piece holder 12 has a cutting piece 14 fixed to its tip by a necessary means, and its root end is formed into a rotation locking shaft part 12e having two parallel surfaces 12d, 12d.

この回止め軸部１２ｅは嵌挿孔１０ａ側から連通孔１０
ｃを貫通して窩孔１０ｂ内に突出させられ、工具本体１
０に対する切削片保持体１２の取付けに働く。This rotating shaft portion 12e is connected to the communication hole 10 from the insertion hole 10a side.
c and protrudes into the hole 10b, and the tool body 1
This serves to attach the cutting piece holder 12 to the holder 12.

前記窩孔１０ｂの内底面には、長孔１５ａとこの長孔１
５ａと直角方向にキー１５ｂを備えた回止め座金１５が
、上記の長孔１５ａ４こ切削片保持体１２の回止め軸部
１２ｅを挿通させ、かつキー１５ｂを窩孔１０ｂの内底
面に設けられたキー溝１０ｄに嵌合させて設けられてい
る。A long hole 15a and a long hole 1 are formed on the inner bottom surface of the hole 10b.
A locking washer 15 having a key 15b in a direction perpendicular to the slot 15a is inserted through the locking shaft 12e of the cutting piece holder 12 through the elongated hole 15a4, and the key 15b is provided on the inner bottom surface of the hole 10b. The key groove 10d is provided so as to fit into the key groove 10d.

この回止め座金１５は、一方では長孔１５ａの案内縁１
５ｃ。This locking washer 15 on the one hand has a guide edge 1 of the elongated hole 15a.
5c.

１５ｃに回ＩＬめ軸部１２ｅの平行な二面１２ｄ。15c, two parallel surfaces 12d of the IL-mechanical shaft portion 12e.

１２ｄを挟むようにして切削片保持体１２の周方向の回
転を阻止し、他方では長孔１５ａ内での回止め軸部１２
ｅの移動を自由にするとともに、軸方向用調整環１１の
回動により窩孔１０ｂの内底面をキー溝１０ｄに沿って
動いて切削片保持体１２を前記偏心半径百で偏７Ｌ％回
動させる。12d to prevent rotation of the cutting piece holder 12 in the circumferential direction, and on the other hand, the rotating shaft part 12 in the elongated hole 15a.
At the same time, the rotation of the axial adjustment ring 11 moves the inner bottom surface of the hole 10b along the keyway 10d, and rotates the cutting piece holder 12 by 7L% at the eccentric radius of 100. let

ここで上記Ｅの量は各部品の誤差遊隙と切削片１４の誤
差及び被加工物関係の許容値を全て含んだ値である。Here, the above-mentioned amount E is a value that includes all of the error clearance of each part, the error of the cutting piece 14, and the allowable value related to the workpiece.

一方、切削片保持体１２の回止め軸部１２ｅの端面には
取付ねじ１６により座金１７が固着されている。On the other hand, a washer 17 is fixed to the end surface of the detent shaft portion 12e of the cutting piece holder 12 with a mounting screw 16.

この座金１７と回止め座金１５との間には切削片保持体
１２に対し第２図において上方に力を加えてこれを工具
本体１０に半固定状態で取り付ける弾性体１８が設けら
れている。An elastic body 18 is provided between the washer 17 and the locking washer 15 to apply an upward force to the cutting piece holder 12 in FIG. 2 to attach it to the tool body 10 in a semi-fixed state.

なお、この弾性体１８の圧縮荷重は１通常、４０〜１０
０−に設定されるが、これに限られるものではないこと
はいうまでもない。Note that the compressive load of this elastic body 18 is usually 40 to 10
Although it is set to 0-, it goes without saying that it is not limited to this.

次に上記のように構成された本考案に係る切削加工用工
具の作用を説明する。Next, the operation of the cutting tool according to the present invention configured as described above will be explained.

第２図の組立状態においては、切削片保持体１２は弾性
体１８によりこの図で上方に強く付勢されているため１
通常の切削作業に際し工具本体１０に対して動くことは
ない。In the assembled state shown in FIG. 2, the cutting piece holder 12 is strongly urged upward in this figure by the elastic body 18.
It does not move relative to the tool body 10 during normal cutting operations.

上記において、切削片１４の突出量を変えたい場合には
、切削片保持体１２に対し突出量調整環１３を回動させ
る。In the above, when it is desired to change the protrusion amount of the cutting piece 14, the protrusion amount adjusting ring 13 is rotated with respect to the cutting piece holder 12.

切削片保持体１２は螺子部１２ｂを突出量調整環１３の
螺子孔１３ｂに螺入している関係で突出量調整環１３の
上記操作で工具本体１０の径方向に動かされ、切削片１
４の突出量を変化させる。The cutting piece holder 12 is moved in the radial direction of the tool body 10 by the above operation of the protrusion amount adjusting ring 13 because the threaded portion 12b is screwed into the screw hole 13b of the protrusion amount adjusting ring 13, and the cutting piece 1
4. Change the amount of protrusion.

また、切削片１４の工具本体１０の軸方向の位置を変え
たい場合には軸方向調整環１１を回動させる。Further, when it is desired to change the position of the cutting piece 14 in the axial direction of the tool body 10, the axial adjustment ring 11 is rotated.

この操作で切削片保持体１２は軸方向用調整環１１の中
心Ｏを中心として半径百の円軌跡を描いて偏心回動する
。With this operation, the cutting piece holder 12 eccentrically rotates about the center O of the axial adjustment ring 11 while drawing a circular locus with a radius of 100 mm.

その結果、切削刃１４の位置が最大Ｅだけ調整されるこ
とになる。As a result, the position of the cutting blade 14 is adjusted by the maximum amount E.

切削片保持体１２を工具本体１０から取り外すには取付
けねじ１６をゆるめて行うことは説明するまでもない。It goes without saying that the cutting piece holder 12 is removed from the tool body 10 by loosening the mounting screw 16.

以上説明したように本考案の切削加工用工具においては
、切削片１４の工具本体１０の半径方向の突出量だけで
なく、工具本体１０の軸方向の位置も調整できるので、
各構成部品の製造誤差等を吸収して切削片１４の取付は
位置を正しくシ、高精度の切削加工をなすことができる
。As explained above, in the cutting tool of the present invention, not only the amount of protrusion of the cutting piece 14 in the radial direction of the tool body 10 but also the axial position of the tool body 10 can be adjusted.
By absorbing manufacturing errors of each component, the cutting piece 14 can be installed in the correct position, and high-precision cutting can be performed.

また切削片１４の位置調整は、切削片保持体１２に対し
て軸方向用調整環１１と突出量調整環１３のいずれか一
方、若しくは両方を回動させるだけでよく、その操作が
極めて簡単である。Further, the position of the cutting piece 14 can be adjusted by simply rotating either or both of the axial adjustment ring 11 and the protrusion adjustment ring 13 with respect to the cutting piece holder 12, and the operation is extremely simple. be.

特に本考案では、前述したとおり、軸方向用調整環を円
筒嵌合とし。In particular, in the present invention, as mentioned above, the axial adjustment ring is cylindrical fitted.

しかもこの軸方向用調整環の回動時に、切削片保持体を
自らを中心としてＸ、Ｙ２軸方向に変位させるようにし
ているので、小さな力で調整を行なえるとともに、調整
を行なった場合でも切刃角度をほとんど変化させないと
いう優れた効果を得ることができる。Moreover, when the axial adjustment ring rotates, the cutting piece holder is displaced in the X and Y directions with itself as the center, so adjustment can be performed with a small force, and even when the adjustment is made, The excellent effect of hardly changing the cutting edge angle can be obtained.

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

第１図は従来の切削加工用工具の平面図、第２図は本考
案に係る切削加工用工具の断面図、第３図は第２図の■
−■線に沿う断面図、第４図は同ＩＶ−ＩＶ線に沿う断
面図、第５図はキーのキー溝に対する嵌合状態を示す断
面図である。 １０・・・・・・工具本体、１０ａ・・・・・・嵌挿孔
、１０ｄ・・・・・・キー溝、１１・・・・・・軸方向
用調整環、１１ｂ・・・・・・嵌合孔、１２・・・・・
・切削片保持体、１２ｂ・・・・・・螺子部、１２ｄ・
・・・・・面、１２ｅ・・・・・・回止め軸部。 １３・・・・・・突出量調整環、１３ｂ・・・・・・螺
子孔、１４・・・・・・切削片、１５・・・・・・回止
め座金、１５ａ・・・・・・長孔、１５ｂ・・・・・・
キー、１６・・・・・・取付けねじ、１７・・・・・・
座金、１８・・・・・・弾性体。Fig. 1 is a plan view of a conventional cutting tool, Fig. 2 is a sectional view of a cutting tool according to the present invention, and Fig. 3 is a plan view of a conventional cutting tool.
FIG. 4 is a cross-sectional view taken along the line IV--IV, and FIG. 5 is a cross-sectional view showing a state in which the key is fitted into the keyway. 10... Tool body, 10a... Fitting hole, 10d... Keyway, 11... Axial adjustment ring, 11b...・Mating hole, 12...
・Cutting piece holder, 12b...Threaded part, 12d・
... Surface, 12e ... Rotating shaft part. 13... Protrusion adjustment ring, 13b... Screw hole, 14... Cutting piece, 15... Rotating washer, 15a... Long hole, 15b...
Key, 16...Mounting screw, 17...
Washer, 18...Elastic body.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 工具本体１０の軸方向に対し直角方向に走る平行な二面
１２ｄを持つ回止め軸部１２ｅと螺子部１２ｂとを有し
、先端に切削片１４を固着した切削片保持体１２と；こ
の切削片保持体１２の螺子部１２ｂが螺着される螺子孔
１３ｂを有する突出量調整環１３と；この突出量調整環
１３を偏心状態で嵌合する嵌合孔１１ｂを有する軸方向
用調整環１１と；前記切削片保持体１２の回止め軸部１
２ｅを半径方向に遊動自在に軸着する長孔１５ａとこの
長孔１５ａと直角方向にキー１５ｂを備えた回止め座金
１５と；切削片保持体１２の根端部に取付けねじ１６に
より固定される座金１７と；前記間止め座金１５と座金
１７の間に装設される弾性体１８と；前記軸方向用調整
環１１が嵌め込まれる内径一様の嵌挿孔１０ａと前記間
止め座金１５のキー１５ｂが嵌め入れられるキーｉ’４
１０ｄとを有する工具本体１０とから成り、切削片保持
体１２に対する突出量調整環１３の回動で切削片１４の
突出量を調整し、また切削片保持体１２に対する軸方向
用調整環１１の回動で工具本体１０の軸方向に切削片１
４の位置を調整できるように構成されたことを特徴とす
る切削加工用工具。A cutting piece holder 12 has a detent shaft part 12e and a screw part 12b having two parallel surfaces 12d running in a direction perpendicular to the axial direction of the tool body 10, and has a cutting piece 14 fixed to the tip; A protrusion adjustment ring 13 having a screw hole 13b into which the screw portion 12b of the piece holder 12 is screwed; and an axial adjustment ring 11 having a fitting hole 11b into which the protrusion adjustment ring 13 is fitted in an eccentric state. and; the rotating shaft portion 1 of the cutting piece holder 12;
A locking washer 15 is provided with a long hole 15a and a key 15b perpendicular to the long hole 15a, and a lock washer 15 is fixed to the root end of the cutting piece holder 12 by a mounting screw 16. an elastic body 18 installed between the stop washer 15 and the washer 17; a fitting insertion hole 10a with a uniform inner diameter into which the axial adjustment ring 11 is fitted; Key i'4 into which key 15b is inserted
The amount of protrusion of the cutting piece 14 is adjusted by rotating the protrusion amount adjusting ring 13 relative to the cutting piece holder 12, and the axial adjustment ring 11 is The cutting piece 1 is rotated in the axial direction of the tool body 10.
A cutting tool characterized by being configured such that the position of No. 4 can be adjusted.