JPH02256435A - Machine tool - Google Patents

Machine tool

Info

Publication number
JPH02256435A
JPH02256435A JP7294989A JP7294989A JPH02256435A JP H02256435 A JPH02256435 A JP H02256435A JP 7294989 A JP7294989 A JP 7294989A JP 7294989 A JP7294989 A JP 7294989A JP H02256435 A JPH02256435 A JP H02256435A
Authority
JP
Japan
Prior art keywords
shaft
main shaft
driven shaft
driven
housing
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
Application number
JP7294989A
Other languages
Japanese (ja)
Inventor
Hajime Kamiya
紙谷　一
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.)
Suzuki Motor Corp
Original Assignee
Suzuki Motor Corp
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 Suzuki Motor Corp filed Critical Suzuki Motor Corp
Priority to JP7294989A priority Critical patent/JPH02256435A/en
Publication of JPH02256435A publication Critical patent/JPH02256435A/en
Pending legal-status Critical Current

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Abstract

PURPOSE:To increase work range by providing a driven shaft, extending in parallel to a driving shaft and rotatably supported, in the housing of a driving shaft for rotating and driving a spindle, attaching a blade means to the driven shaft and arbitrarily positioning the driven shaft around the rotary aixs of the spindle. CONSTITUTION:A driving shaft 10 is concentrically inserted into the spindle 1 of a spindle head 2. A driven shaft 12 extending in parallel to the driving shaft 10 is provided in the housing 11 of the driving shaft 10. The rotation of the driving shaft 10 is transmitted to the driven shaft in rotation by gears 10b, 12b. A blade means 13 is attached to one end of the driven shaft 12 and the other end is inserted into a positioning hole 16 around the spindle 1 of the head 2. Accordingly, a work range can be simply increased by distance L between axes of the driving shaft 10 and the driven shaft 12, compared with the case when the blade means 13 is mounted concentrically with the spindle 1.

Description

【発明の詳細な説明】 〔産業上の利用分野〕 本発明は工作機械に関するものであり、詳しくは上下お
よび左右方向に移動自在な回転する主軸を備え、この主
軸に装着した刃具によってワークを加工するよう構成さ
れた工作機械に関するものである。[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a machine tool, and more specifically, the present invention relates to a machine tool that is equipped with a rotating main shaft that can move vertically and horizontally, and that processes a workpiece using a cutting tool attached to the main shaft. The present invention relates to a machine tool configured to perform the following operations.

〔従来の技術〕[Conventional technology]

第２図に示す工作機械ＡはベツドＢ上にコラムＣが前後
方向（矢印Ｚ方向）および左右方向（矢印Ｘ方向）へ移
動自在に設けられており、さらに上記コラムＣには上下
方向く矢印Ｙ方向）へ移動自在なヘッドＤが設けられて
いる。このヘッドＤには駆動回転する主軸Ｅが設けられ
、この主軸Ｅには第３図に示す如くホルダＦを介して上
記主軸Ｅと同軸上に刃具Ｇが装着されている。上記構成
により刃具Ｇはｘ、ｙ、ｚ軸の３軸方向に自由に移！１
Ｊ　Ｌ、て、テーブルＨ上のワークＩを任意に加工する
ことができる。Machine tool A shown in Fig. 2 has a column C provided on bed B so as to be movable in the front-rear direction (direction of arrow Z) and the left-right direction (direction of arrow X). A head D that is movable in the Y direction is provided. The head D is provided with a main shaft E that is driven and rotated, and a cutting tool G is mounted on the main shaft E coaxially with the main shaft E via a holder F as shown in FIG. With the above configuration, the cutting tool G can be freely moved in the three axes directions of the x, y, and z axes! 1
JL, the workpiece I on the table H can be processed arbitrarily.

〔発明が解決しようとする課題） ところで、このような工作機械では、Ｘ方向、あるいは
Ｙ方向への主軸Ｅの移動範囲が、そのまま加工範囲であ
り、ワークが上記加工範囲を僅かでも超える大きさのも
のであった場合には、テーブルに対するワークの取り付
は位置をずらして複数回に亘ってワークの加工作業を行
なうか、あるいは加工範囲の広い工作橢械を新らたに導
入するかしなければならず、作業の煩雑化やコストアッ
プを招いていた。[Problem to be solved by the invention] By the way, in such a machine tool, the movement range of the main axis E in the X direction or the Y direction is the machining range, and if the workpiece exceeds the machining range even slightly. If this is the case, the workpiece should be mounted on the table at different positions and processed multiple times, or a new machine with a wider processing range should be introduced. This resulted in complicated work and increased costs.

本発明は上記実状に鑑みて、作業の煩雑化やコストアッ
プを解消すべく、加工範囲を容易に拡大することの可能
な工作機械を提供することを目的とする。In view of the above-mentioned circumstances, it is an object of the present invention to provide a machine tool that can easily expand the machining range in order to avoid complication of work and increase in cost.

（課題を解決するための手段） そこで本発明では、上記主軸に該主軸の回転軸と中心軸
を一致させて装着される駆動軸と、上記駆動軸を回転自
在に支持するハウジングと、上記駆動軸に平行して延び
、かつ１記ハウジングに回転自在に支持されるとともに
一端に刃具装着部を有する従動軸と、上記駆動軸と上記
従動軸との間に介装される動力伝達手段と、上記主軸を
支持するｎ械本体と上記ハウジングとの間に介装され、
上記従動軸を上記主軸の回転軸周囲の任意の位置に保持
するための位置決め手段とを設けることによって上記目
的を達成したのである。(Means for Solving the Problems) Accordingly, the present invention provides a drive shaft that is mounted on the main shaft so that the rotation axis of the main shaft and the central axis coincide with each other, a housing that rotatably supports the drive shaft, and a housing that rotatably supports the drive shaft. a driven shaft that extends parallel to the shaft, is rotatably supported by the housing, and has a cutting tool mounting portion at one end; and a power transmission means interposed between the drive shaft and the driven shaft; interposed between the machine body supporting the main shaft and the housing,
The above object has been achieved by providing a positioning means for holding the driven shaft at an arbitrary position around the rotation axis of the main shaft.

〔作用〕[Effect]

上記構成によれば、刃具を主軸と同軸上に装着した場合
に比して、少なくとも上記駆動軸と上記従動軸との軸間
距離だけ加工範囲を拡大することができる。According to the above configuration, the processing range can be expanded by at least the distance between the drive shaft and the driven shaft, compared to a case where the cutting tool is mounted coaxially with the main shaft.

（実施例） 以下、本発明の具体的な構成を、一実施例を示す図面に
基づいて詳細に説明する。(Example) Hereinafter, a specific configuration of the present invention will be described in detail based on drawings showing one example.

第１図は、本発明をマシニングセンタに適用した例を示
すものであり、符号１は駆動回転する主軸、符号２は上
記主軸１を支持する礪械本体としてのヘッドである。FIG. 1 shows an example in which the present invention is applied to a machining center, in which reference numeral 1 indicates a main shaft that is driven and rotated, and reference numeral 2 indicates a head serving as a main body of a machining machine that supports the main shaft 1. In FIG.

上記ヘッド２は、第２図に示した工作機械へと同様に、
前後（Ｚ軸）および左右（Ｘ軸）方向へ移動自在なコラ
ムに、上下（Ｙ軸）方向へ移動自在に支ノ寺されており
、これによって主軸１は、Ｘ軸方向（図中上下方向）、
Ｙ軸方向（紙面と直交する方向）、およびＺ軸方向（図
中左右方向）へ自在に移動する。The head 2 is similarly applied to the machine tool shown in FIG.
A column that can move freely in the front-rear (Z-axis) and left-right (X-axis) directions is supported so that it can move up and down (Y-axis). ),
It moves freely in the Y-axis direction (direction perpendicular to the paper) and Z-axis direction (horizontal direction in the figure).

図示する如く、上記主軸１には、駆動軸１０が装着され
ている。この駆動軸１０は、その端部にシャンク１０ａ
が形成されており、このシャンク１０ａを介して上記主
軸１に着脱自在に組み付けられている。さらに上記駆動
軸１０は、その中心軸を主軸１の回転軸と一致させて組
み付けられている。As shown in the figure, a drive shaft 10 is attached to the main shaft 1. This drive shaft 10 has a shank 10a at its end.
is formed, and is detachably assembled to the main shaft 1 via this shank 10a. Further, the drive shaft 10 is assembled so that its central axis coincides with the rotation axis of the main shaft 1.

上記駆動軸１ｏは、ハウジング１１に回転自在に支持さ
れており、さらに上記ハウジング１１には従動軸１２が
回転自在に支持されている。The drive shaft 1o is rotatably supported by a housing 11, and a driven shaft 12 is rotatably supported by the housing 11.

上記従動軸１２は主軸１の周域、図では側方域に配置さ
れ、かつ上記主軸１と平行に延在するように設置されて
いる。また、従動軸１２の端部には刃具装着部（チセッ
ク）１２ａが設けられており、この刃具装着部１２ａに
は刃具１３が取り付けられている。The driven shaft 12 is disposed around the main shaft 1, in the lateral region in the figure, and is installed so as to extend parallel to the main shaft 1. Further, a cutter mounting portion (chisek) 12a is provided at the end of the driven shaft 12, and a cutter 13 is attached to this cutter mounting portion 12a.

上記主軸１０には駆動ギヤ１０ｂが固設されている一方
、従動軸１２には上記駆動ギヤ１０ｂと噛合する従動ギ
ヤ１２ｂが固設されており、上記駆動ギヤ１０ｂと従動
ギヤ１２ｂによって動力伝達手段１４が構成されている
。主軸１の回転により駆動軸１ｏが回転すると、上記動
力伝達手段１４を介して従動軸１２が回転され工具１３
が駆動回転する。A drive gear 10b is fixed to the main shaft 10, and a driven gear 12b that meshes with the drive gear 10b is fixed to the driven shaft 12, and the drive gear 10b and the driven gear 12b are used as a power transmission means. 14 are configured. When the drive shaft 1o rotates due to the rotation of the main shaft 1, the driven shaft 12 is rotated via the power transmission means 14, and the tool 13 is rotated.
is driven and rotated.

上記ハウジング１１には、ヘッド２に向けて位置決めピ
ン１５が突設されている一方、ヘッド２には上記ピン１
５の嵌入する位置決め孔１６が形成されており、上記ピ
ン１５．と孔１６とによって位置決め手段１７が構成さ
れている。The housing 11 is provided with a positioning pin 15 protruding toward the head 2, while the head 2 is provided with the pin 15.
A positioning hole 16 into which the pin 15.5 is inserted is formed. and the hole 16 constitute a positioning means 17.

上記位置決め孔１６は、主軸１の回転軸を中心とした円
周上に、例えば３０゛の中心角を持って複数個配列形成
されており、上記ピン１５がいずれかの孔１６に嵌入す
ることによって、上記従動軸１２が上記主軸１の回転軸
周りの任意の位置に保持される。A plurality of the positioning holes 16 are arranged on the circumference around the rotational axis of the main shaft 1 with a center angle of, for example, 30°, and the pin 15 cannot fit into any of the holes 16. As a result, the driven shaft 12 is held at any position around the rotation axis of the main shaft 1.

上述した駆動軸１０、従動軸１２、ハウジング１１、動
力伝達手段１４、および位置決めビン１５によってツー
ルホルダ２０が構成される。A tool holder 20 is configured by the drive shaft 10, driven shaft 12, housing 11, power transmission means 14, and positioning bin 15 described above.

なお、位置決め手段１７における位置決めビン１５の動
作態様は、従来のツールホルダにおける位置決め門構と
同様に、ツールホルダ２０を主軸１に′ｉＡ着する際、
図示していない動作機構によって押し出されて孔１６に
嵌入するものであり、詳しい説明は省略する。Note that the operation mode of the positioning pin 15 in the positioning means 17 is similar to the positioning gate mechanism in a conventional tool holder, when the tool holder 20 is attached to the main shaft 1,
It is pushed out and fitted into the hole 16 by an operating mechanism (not shown), and detailed explanation will be omitted.

いま、第１図中、実線で示すように従動軸１２、言い換
えれば刃具１３を、主軸１の回転軸Ｏ−０に対してワー
ク（図示せず）に向かって右側（図中上方側）に占位さ
せると、主軸１がＸ軸方向の加工範囲の右方限界位置に
在る場合でも、刃具１３は上記回転軸０−０からさらに
駆動軸１０と従動軸１２との軸間距離したけ右方に位置
することとなり、加工範囲が拡大される。Now, as shown by the solid line in FIG. 1, the driven shaft 12, in other words, the cutting tool 13, is moved to the right (upper side in the diagram) toward the workpiece (not shown) with respect to the rotation axis O-0 of the main shaft 1. In this case, even if the main shaft 1 is at the right limit position of the machining range in the It will be located on the right side, and the processing range will be expanded.

これと同様に、図中に鎖線で示す如く刃具１３を主軸１
の回転軸Ｏ−０に対してワークに向かって左側（図中下
方側）に占位させると、加工範囲が左方側に拡大される
。Similarly, the cutter 13 is moved to the main shaft 1 as shown by the chain line in the figure.
If it is positioned to the left (lower side in the figure) toward the workpiece with respect to the rotation axis O-0, the machining range will be expanded to the left.

同様にして、主軸１の回転軸Ｏ−０に対して刃具１３を
オフセットした側の加工範囲が拡大され、全体として主
軸１に直接刃具を装着した場合の加工範囲に対し、その
周囲が全周に亘って距離したけ拡大された加工範囲を得
ることができる。Similarly, the machining range on the side where the cutter 13 is offset with respect to the rotation axis O-0 of the spindle 1 is expanded, and the entire periphery is larger than the machining range when the cutter is mounted directly on the spindle 1. It is possible to obtain a machining range expanded by the distance.

なお、本発明は、マシニングセンタにのみ適用されるも
のではなく、種々の工作機械に有効に適用し得ることは
言うまでもない。It goes without saying that the present invention is not only applicable to machining centers, but can also be effectively applied to various machine tools.

〔発明の効果〕〔Effect of the invention〕

以上、詳述した如く、本発明に関わる工作機械によれば
、上記主軸に該主軸の回転軸と中心軸を一致させて装着
される駆動軸と、上記駆動軸を回転自在に支持するハウ
ジングと、上記駆動軸に平行して延び、かつ上記ハウジ
ングに回転自在に支持されるとともに一端に刃具装着部
を有する従動軸と、上記駆動軸と上記従動軸との間に介
装される動力伝達手段と、上記主軸を支持する機械本体
と上記ハウジングとの間に介装され、上記従動軸を上記
主軸の回転軸周囲の任意の位置に保持するための位置決
め手段とを設けたので、刃具を主軸と同軸上に装着した
場合に比して、少なくとも上記駆動軸と上記従動輪との
軸間距離だけ加工範囲を拡大することが可能となり、よ
って煩雑な作業やコストアップを招くことなく、より大
きなワークの加工を行なうことができる。As described above in detail, the machine tool according to the present invention includes a drive shaft mounted on the main shaft so that the rotation axis of the main shaft and the center axis coincide with each other, and a housing that rotatably supports the drive shaft. , a driven shaft extending parallel to the drive shaft, rotatably supported by the housing, and having a cutting tool mounting portion at one end; and a power transmission means interposed between the drive shaft and the driven shaft. and a positioning means interposed between the machine body supporting the main shaft and the housing to hold the driven shaft at an arbitrary position around the rotation axis of the main shaft, so that the cutter can be fixed to the main shaft. Compared to the case where the drive shaft and the driven wheel are mounted on the same axis, it is possible to expand the machining range by at least the distance between the drive shaft and the driven wheel. Workpieces can be processed.

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

第１図は本発明に関わる工作機械の要部を示す断面平面
図、第２図は工作機械の一例を示す概念的な全体斜視図
であり、第３図は従来からの主軸への刃具の取り付は態
様を示す要部断面平面図である。 １・・・主軸、２・・・ヘッド、１０・・・駆動軸、１
０ｂ・・・駆動ギヤ、１１・・・ハウジング、１２・・
・従動軸、１２ｂ・・・従動ギヤ、１３・・・刃具、１
４・・・動力伝達手段、１５・・・位置決めビン、１６
・・・位置決め孔、１７・・・位置決め手段、２０・・
・ツールホルダ。 出　願　人　鈴木自動車工業株式会社 第３図Fig. 1 is a cross-sectional plan view showing the main parts of a machine tool related to the present invention, Fig. 2 is a conceptual overall perspective view showing an example of the machine tool, and Fig. 3 is a conventional method for attaching a cutting tool to the main shaft. The attachment is a main part sectional plan view showing an aspect. 1...Main shaft, 2...Head, 10...Drive shaft, 1
0b... Drive gear, 11... Housing, 12...
- Driven shaft, 12b... Driven gear, 13... Cutting tool, 1
4... Power transmission means, 15... Positioning bin, 16
...Positioning hole, 17...Positioning means, 20...
・Tool holder. Applicant Suzuki Motor Co., Ltd. Figure 3

Claims (1)

【特許請求の範囲】 上下および左右方向に移動自在な回転する主軸を備え、
かつ上記主軸に装着した刃具によってワークを加工する
工作機械において、 上記主軸に該主軸の回転軸と中心軸を一致させて装着さ
れる駆動軸と、 上記駆動軸を回転自在に支持するハウジングと、上記駆
動軸に平行して延び、かつ上記ハウジングに回転自在に
支持されるとともに一端に刃具装着部を有する従動軸と
、 上記駆動軸と上記従動軸との間に介装される動力伝達手
段と、 上記主軸を支持する機械本体と上記ハウジングとの間に
介装され、上記従動軸を上記主軸の回転軸周囲の任意の
位置に保持するための位置決め手段とを備えて成ること
を特徴とする工作機械。[Claims] A rotating main shaft that is movable vertically and horizontally,
and a machine tool that processes a workpiece with a cutting tool mounted on the main shaft, a drive shaft mounted on the main shaft with the rotational axis of the main shaft aligned with a central axis, and a housing rotatably supporting the drive shaft; a driven shaft that extends parallel to the drive shaft, is rotatably supported by the housing, and has a cutting tool mounting portion at one end; and a power transmission means interposed between the drive shaft and the driven shaft. , a positioning means interposed between the machine body supporting the main shaft and the housing for holding the driven shaft at an arbitrary position around the rotation axis of the main shaft. Machine Tools.
JP7294989A 1989-03-25 1989-03-25 Machine tool Pending JPH02256435A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7294989A JPH02256435A (en) 1989-03-25 1989-03-25 Machine tool

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7294989A JPH02256435A (en) 1989-03-25 1989-03-25 Machine tool

Publications (1)

Publication Number Publication Date
JPH02256435A true JPH02256435A (en) 1990-10-17

Family

ID=13504142

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7294989A Pending JPH02256435A (en) 1989-03-25 1989-03-25 Machine tool

Country Status (1)

Country Link
JP (1) JPH02256435A (en)

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