JP2006239801A - Non-circular machining device - Google Patents

Non-circular machining device Download PDF

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Publication number
JP2006239801A
JP2006239801A JP2005057529A JP2005057529A JP2006239801A JP 2006239801 A JP2006239801 A JP 2006239801A JP 2005057529 A JP2005057529 A JP 2005057529A JP 2005057529 A JP2005057529 A JP 2005057529A JP 2006239801 A JP2006239801 A JP 2006239801A
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Prior art keywords
circular machining
circular
machining unit
axis
work
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Inventor
Isayasu Hayashi
功泰 林
Masaki Hibino
正樹 日比野
Norio Naganuma
典夫 長沼
Kiyokazu Kainuma
喜代和 飼沼
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Yamazaki Mazak Corp
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Yamazaki Mazak Corp
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Priority to JP2005057529A priority Critical patent/JP2006239801A/en
Priority to EP06405083A priority patent/EP1698953A1/en
Priority to US11/364,734 priority patent/US7404347B2/en
Priority to CNB2006100594448A priority patent/CN100423898C/en
Publication of JP2006239801A publication Critical patent/JP2006239801A/en
Pending legal-status Critical Current

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Abstract

<P>PROBLEM TO BE SOLVED: To improve a machining device for a non-circular work such as an internal combustion piston. <P>SOLUTION: A work 10 is held on a work main shaft and rotated. A non-circular machining device 100 has a non-circular machining unit base 110 and is equipped with a servo motor 104. A non-circular machining unit 120 is positioned along the Y-axis, and an arbitrary blade 133 out of a blade group 130 is selected. The servo motor 112 reciprocates the non-circular machining unit 120 on an X<SB>2</SB>axis in synchronization with the rotation of the work main shaft, thereby performing non-circular machining for the work 10. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

本発明は、内燃機関のピストンのような非円形の加工に適した刃物台を備えた加工装置に関する。   The present invention relates to a machining apparatus including a tool post suitable for non-circular machining such as a piston of an internal combustion engine.

図４は、内燃機関用のピストンを示し、ピストン１０はアルミ鋳物製の本体１２を有し、本体１２はピストンピンが挿入される貫通穴１３が形成される。ピストン本体１２のヘッド１５もアルミ鋳物でつくられるが、ピストンリングを受け入れる溝部１４は、鋳鉄でつくられる。すなわちピストン１はアルミ鋳物と鋳鉄の異種金属材料でつくられる。   FIG. 4 shows a piston for an internal combustion engine. The piston 10 has a main body 12 made of cast aluminum, and the main body 12 is formed with a through hole 13 into which a piston pin is inserted. The head 15 of the piston body 12 is also made of an aluminum casting, but the groove 14 for receiving the piston ring is made of cast iron. That is, the piston 1 is made of a dissimilar metal material such as an aluminum casting and cast iron.

このピストン１０の外径部を旋削加工を行う場合には、ワークであるピストンをワーク主軸に把持して回転させ、旋削工具Ｔ１で外径切削を行う。
ピストン１０は非円形（楕円）の外径形状を有するので、ワーク１の回転に同期して工具Ｔ１を前後に移動して非円形切削を行う。
この非円形加工を行うには、通常の刃物台をワーク主軸の回転に同期して往復動させることにより非円形加工を行うことは可能である。 When the outer diameter of the piston 10 performs a turning rotates grips the piston which is a work to the work spindle, performs outer diameter cutting by turning the tool T 1.
Since the piston 10 has a non-circular (elliptical) outer diameter shape, the tool T 1 is moved back and forth in synchronization with the rotation of the workpiece 1 to perform non-circular cutting.
In order to perform this non-circular machining, it is possible to perform the non-circular machining by reciprocating a normal tool post in synchronization with the rotation of the work spindle.

しかしながら、刃物台は多数の加工工具を装備し、重量も大きいので、貫性力も大きい。したがって、高速の往復動には対応ができない。
下記の特許文献１は、非円形加工専用の刃物台を備えたものを開示する。
特開平５−２００６０１号公報 However, the tool post is equipped with a large number of processing tools and is heavy, and therefore has a high penetrating force. Therefore, it cannot cope with high-speed reciprocation.
Patent Document 1 below discloses a tool provided with a tool post dedicated to non-circular machining.
JP-A-5-200601

図４に示した非円形ワークにあっては、異種金属で構成され、また外径切削に加えてリング用の溝加工を施す必要がある。
そこで、非円形加工装置は、異なる材質と加工に適した複数の工具を装備することが望ましい。
本発明の目的は、上述した要求を満足する非円形加工装置を提供するものである。 The non-circular workpiece shown in FIG. 4 is made of a dissimilar metal and needs to be grooved for a ring in addition to the outer diameter cutting.
Therefore, it is desirable that the non-circular machining apparatus is equipped with a plurality of tools suitable for different materials and machining.
An object of the present invention is to provide a non-circular machining apparatus that satisfies the above-described requirements.

上記目的を達成するために、本発明の非円形加工装置は、複数本の刃物を備えた非円形加工ユニットと、非円形加工ユニットを加工物の半径方向の軸線に沿って摺動自在に支持する非円形加工ユニットベースと、非円形加工ユニットベースに取付けられて非円形加工ユニットを往復動させる非円形加工用モータと、加工物の半径方向の軸線に直交する軸線に沿って非円形加工ユニットベースを位置決めする手段を備え、非円形加工ユニット上に装備される刃物は、非円形加工ユニットベースの移動方向に対して並列に取付けられる複数本の刃物群で構成されるものである。
そして、刃物群は、非円形加工ユニットベースの移動方向に対して一定間隔に取付けられるものである。 In order to achieve the above object, a non-circular machining apparatus according to the present invention includes a non-circular machining unit having a plurality of blades and a non-circular machining unit that is slidably supported along the radial axis of the workpiece. Non-circular machining unit base, a non-circular machining motor attached to the non-circular machining unit base to reciprocate the non-circular machining unit, and a non-circular machining unit along an axis perpendicular to the radial axis of the workpiece The blade provided with means for positioning the base and mounted on the non-circular machining unit is composed of a plurality of blade groups attached in parallel with the moving direction of the non-circular machining unit base.
The blade group is attached at regular intervals with respect to the moving direction of the non-circular machining unit base.

本発明によれば、加工物の材質や加工形状に応じて最適な刃物を選択することができ、加工能率を向上することができる。   According to the present invention, an optimum blade can be selected according to the material and shape of the workpiece, and the machining efficiency can be improved.

図１は、本発明の非円形加工装置を装備した倒立旋盤の概要を示す説明図、図２は要部の平面図、図３は要部の断面図である。
全体を符号１で示す倒立旋盤は、ワークヘッド２０を有し、ワークヘッドは、図１の平面上で水平方向のＸ軸と垂直方向のＺ軸に沿って移動する。
ワークヘッド２０は、ワーク主軸３０を有し、ワーク主軸３０はチャック３２でワーク１０を把持する。 FIG. 1 is an explanatory view showing an outline of an inverted lathe equipped with the non-circular machining apparatus of the present invention, FIG. 2 is a plan view of the main part, and FIG. 3 is a sectional view of the main part.
The inverted lathe generally indicated by reference numeral 1 has a work head 20, and the work head moves along the horizontal X-axis and the vertical Z-axis on the plane of FIG.
The work head 20 has a work spindle 30, and the work spindle 30 grips the work 10 with a chuck 32.

倒立旋盤１はツールヘッド４０を有し、ツールヘッド４０はタレット刃物台４２を備える。タレット刃物台４２は、軸線廻りに回転し、例えば１２個の刃物を装備することができる。
円形ワークにあっては、Ｘ軸とＺ軸に沿って移動するワークヘッド２０とツールヘッド４０が同期して、ツールＴによりワーク１０の加工を行う。 The inverted lathe 1 has a tool head 40, and the tool head 40 includes a turret tool post 42. The turret tool post 42 rotates around its axis and can be equipped with, for example, twelve tools.
In the case of a circular workpiece, the workpiece 10 is processed by the tool T in synchronization with the workpiece head 20 and the tool head 40 moving along the X axis and the Z axis.

全体を符号１００が示す非円形加工装置は、ツールヘッド４０と干渉しない位置に配置される。
非円形加工装置１００は、倒立旋盤のベース側に固定されるＹ軸ベース１０２を有する。Ｙ軸ベース１０２上には、非円形加工ユニットベース１１０が図１上で紙面に垂直なＹ軸方向に摺動自在に載置される。Ｙ軸ベース１０２上に装備されるサーボモータ１０４はねじ軸を駆動して、非円形加工ユニットベース１１０をＹ軸上で所定の位置に移動させる。 The non-circular machining apparatus denoted as a whole by reference numeral 100 is disposed at a position where it does not interfere with the tool head 40.
The non-circular machining apparatus 100 has a Y-axis base 102 that is fixed to the base side of an inverted lathe. On the Y-axis base 102, a non-circular machining unit base 110 is slidably mounted in the Y-axis direction perpendicular to the paper surface in FIG. The servo motor 104 mounted on the Y-axis base 102 drives the screw shaft to move the non-circular machining unit base 110 to a predetermined position on the Y-axis.

非円形加工ユニットベース１１０上には、非円形加工ユニット１２０がＸ２軸方向に摺動自在に装備される。
非円形加工ユニットベース１１０にはサーボモータ１１２が装備され、非円形加工ユニット１２０をワーク主軸３０の回転に同期してＸ２軸方向に往復動させる。 On the non-circular machining unit base 110, a non-circular machining unit 120 is equipped slidably X 2 axial direction.
The non-circular machining unit base 110 is equipped with a servo motor 112, to synchronize the non-circular machining unit 120 to the rotation of the work spindle 30 is reciprocated in X 2 axial direction.

図２に示すように、非円形加工ユニット１２０上には、一連の刃物群１３０が装備される。
図の実施例にあっては、刃物群１３０は４個の刃物１３１，１３２，１３３，１３４で構成される。 As shown in FIG. 2, a series of blade groups 130 are provided on the non-circular machining unit 120.
In the illustrated embodiment, the blade group 130 includes four blades 131, 132, 133, and 134.

本実施例にあっては、４本の刃物が使用されているが、加工条件に応じて任意の本数の刃物を用意することができる。
加工に際しては、Ｙ軸モータ１０４を駆動して、刃物群１３０のうちから刃物１３３がワーク主軸の軸線に合致するように位置決めする。 In this embodiment, four blades are used, but any number of blades can be prepared according to the processing conditions.
In machining, the Y-axis motor 104 is driven to position the blade 133 from the blade group 130 so as to match the axis of the workpiece spindle.

次に、ワークヘッドをＸ軸上で制御するとともに、Ｘ２軸モータ１１２を駆動して、ワーク主軸の回転に同期させて非円形加工ユニット１２０を往復動させて非円形加工を行う。
ワーク１０が、ピストンの場合には、例えば長径と短径の差が０．１ｍｍ〜１．０ｍｍ程度の楕円形に加工される。 Next, the work head is controlled on the X axis, and the X 2- axis motor 112 is driven to perform non-circular machining by reciprocating the non-circular machining unit 120 in synchronization with the rotation of the work spindle.
When the workpiece 10 is a piston, the workpiece 10 is processed into an ellipse having a difference between a major axis and a minor axis of about 0.1 mm to 1.0 mm, for example.

図３は、非円形加工装置のより具体的な構成を示す説明図である。
Ｙ軸ベース１０２に装備されたＹ軸モータ１０４を駆動することにより、非円形加工ユニットベース１１０はＹ軸方向に移動する。
Ｙ軸ベース１０２は、シリンダ１５０を有し、ピストン１５２が摺動自在に挿入されている非円形加工ユニットベース１１０がＹ軸上で位置決めされると、ピストン１５０を矢印Ｆ１方向に引き下げる。ピストンロッド１５４の先端には、テーパーカム１５６が設けてあり、非円形加工ユニットベース１１０は、Ｙ軸ベース１０２に対してクランプされる。 FIG. 3 is an explanatory diagram showing a more specific configuration of the non-circular machining apparatus.
By driving the Y-axis motor 104 mounted on the Y-axis base 102, the non-circular machining unit base 110 moves in the Y-axis direction.
Y-axis base 102 has a cylinder 150, the non-circular machining unit base 110 of the piston 152 is inserted slidably is positioned on the Y axis, pulling the piston 150 to direction of arrow F 1. A tapered cam 156 is provided at the tip of the piston rod 154, and the non-circular machining unit base 110 is clamped with respect to the Y-axis base 102.

非円形加工ユニットベース１１０上には、Ｘ２軸モータ１１２が設けてあり、ボールネジ１１４を介して非円形加工ユニット１２０をＸ２軸に沿って制御する。
刃物群１３０の任意の刃物に変更するには、クランプを解除し、上述した工程を繰り返せばよい。 An X 2- axis motor 112 is provided on the non-circular machining unit base 110, and the non-circular machining unit 120 is controlled along the X 2- axis via a ball screw 114.
In order to change to any blade in the blade group 130, the clamp may be released and the above-described steps may be repeated.

本発明の非円形加工装置は以上のように、Ｙ軸方向に並んだ複数の刃物群のうちから、任意の刃物を選択して非円形加工を行うことができる。したがって、加工条件に最適な刃物を使用することにより、生産性を向上することができる。
また、高速で往復動する非円形加工ユニット上の重量を最少限に限定して貫性力を低下させ、高速加工に対応することができる。 As described above, the non-circular machining apparatus of the present invention can perform non-circular machining by selecting an arbitrary blade from a plurality of blade groups arranged in the Y-axis direction. Therefore, productivity can be improved by using an optimum blade for the processing conditions.
Further, the weight on the non-circular machining unit that reciprocates at high speed is limited to the minimum, and the penetrating force can be reduced to cope with high speed machining.

本発明の非円形加工装置を装備した倒立旋盤の説明図。Explanatory drawing of the inverted lathe equipped with the non-circular processing apparatus of this invention. 図１の要部の平面図。The top view of the principal part of FIG. 図１の要部の断面図。Sectional drawing of the principal part of FIG. 非円形加工の例を示す説明図。Explanatory drawing which shows the example of non-circular processing.

符号の説明Explanation of symbols

１ 倒立旋盤
１０ ワーク
２０ ワークヘッド
３０ ワーク主軸
４０ ツールヘッド
４２ タレット刃物台
１００ 非円形加工装置
１１０ 非円形加工ユニットベース
１２０ 非円形加工ユニット
１３０ 刃物群 1 Inverted lathe 10 Work 20 Work head 30 Work spindle 40 Tool head 42 Turret tool post 100 Non-circular machining unit 110 Non-circular machining unit base 120 Non-circular machining unit 130 Blade group

Claims (2)

加工物を把持して回転するワーク主軸を備えたワークヘッドと、加工物に非円形加工を施す非円形加工装置を備え、
非円形加工装置は、複数本の刃物を備えた非円形加工ユニットと、非円形加工ユニットを加工物の半径方向の軸線に沿って摺動自在に支持する非円形加工ユニットベースと、非円形加工ユニットベースに取付けられて非円形加工ユニットを往復動させる非円形加工用モータと、加工物の半径方向の軸線に直交する軸線に沿って非円形加工ユニットベースを位置決めする手段を備え、
非円形加工ユニット上に装備される刃物は、非円形加工ユニットベースの移動方向に対して並列に取付けられる複数本の刃物群で構成される非円形加工装置。 A work head having a work spindle that grips and rotates a workpiece, and a non-circular machining device that performs non-circular machining on the workpiece.
The non-circular machining apparatus includes a non-circular machining unit having a plurality of blades, a non-circular machining unit base that slidably supports the non-circular machining unit along a radial axis of the workpiece, and non-circular machining. A non-circular machining motor attached to the unit base for reciprocating the non-circular machining unit, and means for positioning the non-circular machining unit base along an axis perpendicular to the radial axis of the workpiece,
The non-circular machining apparatus is composed of a plurality of blade groups that are mounted in parallel with the moving direction of the non-circular machining unit base. 刃物群は、非円形加工ユニットベースの移動方向に対して一定間隔に取付けられる請求項１記載の非円形加工装置。
The non-circular machining apparatus according to claim 1, wherein the blade group is attached at a constant interval with respect to the moving direction of the non-circular machining unit base.
JP2005057529A 2005-03-02 2005-03-02 Non-circular machining device Pending JP2006239801A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP2005057529A JP2006239801A (en) 2005-03-02 2005-03-02 Non-circular machining device
EP06405083A EP1698953A1 (en) 2005-03-02 2006-02-27 Noncircular working device with a plurality of tools
US11/364,734 US7404347B2 (en) 2005-03-02 2006-02-28 Noncircular working device
CNB2006100594448A CN100423898C (en) 2005-03-02 2006-03-02 Noncircular working device

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JP2005057529A JP2006239801A (en) 2005-03-02 2005-03-02 Non-circular machining device

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JPH04141302A (en) * 1990-10-01 1992-05-14 Seiko Seiki Co Ltd Nc compound automatic lathe
JPH06114601A (en) * 1992-09-30 1994-04-26 Citizen Watch Co Ltd Numerical control lathe
JPH06114603A (en) * 1992-09-30 1994-04-26 Citizen Watch Co Ltd Numerical control lathe
JP2000515075A (en) * 1996-01-25 2000-11-14 コミツサリア タ レネルジー アトミーク 3-axis lathe that performs polar coordinate motion
JPH1015702A (en) * 1996-07-02 1998-01-20 Star Micronics Co Ltd Multifunctional lathe
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JP2005001091A (en) * 2003-06-16 2005-01-06 Yamazaki Mazak Corp Inverted lathe

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CN1827299A (en) 2006-09-06
CN100423898C (en) 2008-10-08

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