JP5148333B2 - Tool holder positioning device - Google Patents

Tool holder positioning device Download PDF

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JP5148333B2
JP5148333B2 JP2008067264A JP2008067264A JP5148333B2 JP 5148333 B2 JP5148333 B2 JP 5148333B2 JP 2008067264 A JP2008067264 A JP 2008067264A JP 2008067264 A JP2008067264 A JP 2008067264A JP 5148333 B2 JP5148333 B2 JP 5148333B2
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tool holder
axis
positioning device
convex portions
holder positioning
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JP2008307678A (en
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秀治 宮入
宏志 栗林
博樹 中島
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株式会社アルプスツール
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Priority to EP20080156188 priority patent/EP1992435B1/en
Priority to DE200860000292 priority patent/DE602008000292D1/en
Priority to US12/121,051 priority patent/US7581472B2/en
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Description

本発明は、ツールホルダを工作機械のターレット等の刃物台に位置決めするための装置に関する。   The present invention relates to an apparatus for positioning a tool holder on a tool post such as a turret of a machine tool.

旋盤等の工作機械によりワークに対し精度良く加工を行うには、ツールホルダを旋盤のターレット等の刃物台に正確に位置決めする必要がある。この位置決めを正確に行うために、工作機械の刃物台にはツールホルダ位置決め装置が設けられている。   In order to process a workpiece with high accuracy by a machine tool such as a lathe, it is necessary to accurately position the tool holder on a tool post such as a turret of the lathe. In order to accurately perform this positioning, a tool holder positioning device is provided on the tool post of the machine tool.

すなわち、刃物台には座面が形成され、この座面に複数個の凹部が設けられ、ツールホルダには刃物台の座面に合致可能な連結面が形成され、この連結面に刃物台の凹部に嵌り込む凸部が形成される。ツールホルダの連結面が刃物台の座面に当てられ、連結面の凸部が刃物台の凹部に嵌め込まれることにより、ツールホルダが刃物台に位置決めされる。   That is, the turret is formed with a seating surface, the seating surface is provided with a plurality of recesses, and the tool holder is formed with a connecting surface that can match the seating surface of the turret. A convex part that fits into the concave part is formed. The connecting surface of the tool holder is brought into contact with the seating surface of the tool post, and the convex portion of the connecting surface is fitted into the concave portion of the tool post, whereby the tool holder is positioned on the tool post.

従来、このツールホルダと刃物台との位置決めをより精度良く行うために凹凸部を複数個のキー溝とキーで形成し、キーがキー溝と接触する側面を他のキー及びキー溝との間で互いに直交するように形成している（例えば、特許文献１参照）。また、ツールホルダを刃物台上に位置決めするために凸部をバネ片の先に取り付け、ネジでツールホルダを刃物台に締め付ける際にバネ片が撓むようにしている（例えば、特許文献２参照）。   Conventionally, in order to position the tool holder and the tool post with higher accuracy, the concave and convex portions are formed by a plurality of key grooves and keys, and the side where the key contacts the key groove is between the other keys and the key groove. Are formed so as to be orthogonal to each other (for example, see Patent Document 1). Further, in order to position the tool holder on the tool rest, a convex portion is attached to the tip of the spring piece, and the spring piece is bent when the tool holder is fastened to the tool rest with a screw (for example, see Patent Document 2).

特開２００６−１６７８６２号公報JP 2006-167862 A 独国特許出願公開第１０２００５０４５６６２号明細書German Patent Application Publication No. 102005045662

特許文献１で開示されるキー及びキー溝による位置決め方法は、キーとキー溝の側面同士間にわずかではあるが隙間が生じる。そのため、ツールホルダの位置決めに狂いが生じるおそれがある。この狂いは座面及び連結面における直交するＸＹ軸及びＸＹ軸に垂直なＺ軸について見ると、Ｘ軸方向やＹ軸方向に生じたり、Ｚ軸回りの捩じり方向θに生じたりする。また、ツールホルダの連結面を刃物台の座面に当てながらキーをキー溝に嵌め込む作業が面倒であり、嵌め込む際にキーやキー溝が傷つきやすいという問題がある。   In the positioning method using a key and a key groove disclosed in Patent Document 1, there is a slight gap between the side surfaces of the key and the key groove. For this reason, there is a possibility that the positioning of the tool holder is distorted. This deviation may occur in the X-axis direction or the Y-axis direction, or in the torsional direction θ around the Z-axis, when viewed with respect to the XY axis orthogonal to the seating surface and the connecting surface and the Z-axis perpendicular to the XY-axis. Further, it is troublesome to fit the key into the key groove while the connecting surface of the tool holder is in contact with the seating surface of the tool post, and there is a problem that the key and the key groove are easily damaged when fitted.

特許文献２で開示される位置決め方法は、ツールホルダの取り付け時に凸部を片持ち状に支持するバネ片が撓むようにしているので、凸部の軸がツールホルダの連結面や刃物台の座面に対し当初垂直であったのが傾斜する。そのため、凸部と凹部とがねじれたり傾いたりして接触し、ツールホルダの位置決めに狂いが生じるおそれがある。   In the positioning method disclosed in Patent Document 2, since the spring piece that supports the convex portion in a cantilever manner is bent when the tool holder is attached, the axis of the convex portion is connected to the connecting surface of the tool holder or the seating surface of the tool post. On the other hand, it was inclined to be vertical at first. Therefore, the convex part and the concave part may be twisted or tilted to come into contact with each other, and the tool holder may be misaligned.

従って、本発明はこのような問題点を解消することができるツールホルダ位置決め装置を提供することを目的とする。   Accordingly, an object of the present invention is to provide a tool holder positioning device that can solve such problems.

上記課題を解決するため、本発明は次のような構成を採用する。   In order to solve the above problems, the present invention employs the following configuration.

すなわち、請求項１に係る発明は、刃物台（１）の座面（１ａ，１ｂ・・・１ｎ）に設けられた複数個の凸部（１６ａ，１６ｂ，１６ｃ，１６ｄ，３２ａ，３２ｂ）又は複数個の凹部（１５ａ，１５ｂ，１５ｃ，１５ｄ，３３ａ，３３ｂ）と、上記座面（１ａ，１ｂ・・・１ｎ）に合致可能なツールホルダ（２）の連結面（２ａ）に、上記複数個の凸部（１６ａ，１６ｂ，１６ｃ，１６ｄ，３２ａ，３２ｂ）又は上記複数個の凹部（１５ａ，１５ｂ，１５ｃ，１５ｄ，３３ａ，３３ｂ）と嵌合可能に形成された凹部（１５ａ，１５ｂ，１５ｃ，１５ｄ，３３ａ，３３ｂ）又は凸部（１６ａ，１６ｂ，１６ｃ，１６ｄ，３２ａ，３２ｂ）とを有し、上記座面（１ａ，１ｂ・・・１ｎ）と連結面（２ａ）とが密着する際に摺接するテーパ面（２３，２４、３４，３５）が凹凸部にそれぞれ対称形に形成されたツールホルダ位置決め装置において、上記複数個の凸部（１６ａ，１６ｂ，１６ｃ，１６ｄ，３２ａ，３２ｂ）又は複数個の凹部（１５ａ，１５ｂ，１５ｃ，１５ｄ，３３ａ，３３ｂ）が、上記座面（１ａ，１ｂ・・・１ｎ）に含まれる交差軸（Ｘ，Ｙ）上に少なくとも一つずつ設けられ、上記複数個の凸部（１６ａ，１６ｂ，１６ｃ，１６ｄ，３２ａ，３２ｂ）又は上記複数個の凹部（１５ａ，１５ｂ，１５ｃ，１５ｄ，３３ａ，３３ｂ）と嵌合可能な凹部（１５ａ，１５ｂ，１５ｃ，１５ｄ，３３ａ，３３ｂ）又は凸部（１６ａ，１６ｂ，１６ｃ，１６ｄ，３２ａ，３２ｂ）が、上記連結面（２ａ）に含まれる交差軸（Ｘ，Ｙ）上に設けられ、上記凸部（１６ａ，１６ｂ，１６ｃ，１６ｄ，３２ａ，３２ｂ）には、上記座面（１ａ，１ｂ・・・１ｎ）又は連結面（２ａ）に平行な複数個のすり割り（１９）が、凸部（１６ａ，１６ｂ，１６ｃ，１６ｄ，３２ａ，３２ｂ）の置かれる上記軸（Ｘ又はＹ）の方向に互い違いに切り込まれることにより、各凸部（１６ａ，１６ｂ，１６ｃ，１６ｄ，３２ａ，３２ｂ）が上記座面（１ａ，１ｂ・・・１ｎ）又は連結面（２ａ）に垂直な方向に弾性変形可能とされ、上記各凹凸部（１５ａ，１５ｂ，１５ｃ，１５ｄ，１６ａ，１６ｂ，１６ｃ，１６ｄ，３２ａ，３２ｂ，３３ａ，３３ｂ）のテーパ面（２３，２４，３４，３５）は各凹凸部（１５ａ，１５ｂ，１５ｃ，１５ｄ，１６ａ，１６ｂ，１６ｃ，１６ｄ，３２ａ，３２ｂ，３３ａ，３３ｂ）の置かれる上記軸（Ｘ又はＹ）に関し対称形になるように形成されたものとして構成される。   That is, the invention according to claim 1 includes a plurality of convex portions (16a, 16b, 16c, 16d, 32a, 32b) provided on the seating surfaces (1a, 1b... 1n) of the tool post (1) or The plurality of recesses (15a, 15b, 15c, 15d, 33a, 33b) and the connecting surface (2a) of the tool holder (2) that can match the seating surfaces (1a, 1b,. Recesses (15a, 15b, 16b, 16b, 16c, 16d, 32a, 32b) or recesses (15a, 15b, 15c, 15d, 33a, 33b) that can be fitted to the plurality of recesses (15a, 15b, 15c, 15d, 33a, 33b). 15c, 15d, 33a, 33b) or projections (16a, 16b, 16c, 16d, 32a, 32b), and the seating surface (1a, 1b,... 1n) and the connecting surface (2a) are in close contact with each other. Taper surface (23 24, 34, 35) in the tool holder positioning device in which the concavo-convex portions are formed symmetrically, the plurality of convex portions (16a, 16b, 16c, 16d, 32a, 32b) or the plurality of concave portions (15a, 15b, 15c, 15d, 33a, 33b) are provided at least one on each of the intersecting axes (X, Y) included in the seating surfaces (1a, 1b... 1n), and the plurality of convex portions ( 16a, 16b, 16c, 16d, 32a, 32b) or recesses (15a, 15b, 15c, 15d, 33a, 33b) that can be fitted into the plurality of recesses (15a, 15b, 15c, 15d, 33a, 33b). Alternatively, convex portions (16a, 16b, 16c, 16d, 32a, 32b) are provided on the intersecting axes (X, Y) included in the connecting surface (2a), and the convex portions (16a, 16b, 1) are provided. c, 16d, 32a, 32b) have a plurality of slits (19) parallel to the seating surface (1a, 1b... 1n) or the connecting surface (2a), and convex portions (16a, 16b, 16c). , 16d, 32a, 32b) are alternately cut in the direction of the axis (X or Y) where the projections (16a, 16b, 16c, 16d, 32a, 32b) are placed. , 1b... 1n) or elastically deformable in a direction perpendicular to the connecting surface (2a), and each of the concave and convex portions (15a, 15b, 15c, 15d, 16a, 16b, 16c, 16d, 32a, 32b, 33a). , 33b) is the axis (23a, 15b, 15c, 15d, 16a, 16b, 16c, 16d, 32a, 32b, 33a, 33b) on which the concave and convex portions (15a, 15b, 15c, 15d, 16c, 16d, 32a, 32b, 33a, 33b) are placed. X or Y ) Are formed so as to be symmetrical with respect to each other.

請求項２に記載されるように、請求項１に記載のツールホルダ位置決め装置において、凸部（１６ａ，１６ｂ，１６ｃ，１６ｄ）を略立方体又は略直方体に形成することができる。   As described in claim 2, in the tool holder positioning device according to claim 1, the convex portions (16a, 16b, 16c, 16d) can be formed in a substantially cube or a substantially rectangular parallelepiped.

請求項３に記載されるように、請求項１に記載のツールホルダ位置決め装置において、凸部（３２ａ，３２ｂ）を円錐台形に形成することも可能である。   As described in claim 3, in the tool holder positioning device according to claim 1, the convex portions (32a, 32b) may be formed in a truncated cone shape.

請求項４に記載されるように、請求項１乃至請求項３のいずれかに記載のツールホルダ位置決め装置において、すべての凸部（１６ａ，１６ｂ，１６ｃ，１６ｄ，３２ａ，３２ｂ）が連結部材（２７）で連結され一体化されたものとすることができる。   As described in claim 4, in the tool holder positioning device according to any one of claims 1 to 3, all the convex portions (16a, 16b, 16c, 16d, 32a, 32b) are connected members ( 27) and can be integrated.

請求項５に記載されるように、請求項１乃至請求項４のいずれかに記載のツールホルダ位置決め装置において、凹部（１５ａ，１５ｂ，１５ｃ，１５ｄ）を各軸（Ｘ又はＹ）に沿って伸びる溝とすることも可能である。   As described in claim 5, in the tool holder positioning device according to any one of claims 1 to 4, the recesses (15a, 15b, 15c, 15d) are arranged along each axis (X or Y). It is also possible to make it an extending groove.

請求項６に記載されるように、請求項１乃至請求項４のいずれかに記載のツールホルダ位置決め装置において、凹部（３３ａ，３３ｂ）を凸部（３２ａ，３２ｂ）と嵌合する雌穴とすることも可能である。   As described in claim 6, in the tool holder positioning device according to any one of claims 1 to 4, a female hole for fitting the concave portion (33a, 33b) with the convex portion (32a, 32b); It is also possible to do.

請求項７に記載されるように、請求項１に記載のツールホルダ位置決め装置において、交差軸（Ｘ，Ｙ）を直交二軸とすることも可能である。   As described in claim 7, in the tool holder positioning device according to claim 1, the intersecting axes (X, Y) may be two orthogonal axes.

請求項８に記載されるように、請求項１に記載のツールホルダ位置決め装置において、交差軸（Ｘ，Ｙ）が座面（１ａ，１ｂ・・・１ｎ）又は連結面（２ａ）に含まれる鉛直軸（Ｐ）又は水平軸（Ｑ）に交差するものとすることも可能である。   As described in claim 8, in the tool holder positioning device according to claim 1, the intersecting axes (X, Y) are included in the seating surface (1a, 1b... 1n) or the coupling surface (2a). It is also possible to intersect the vertical axis (P) or the horizontal axis (Q).

請求項９に記載されるように、請求項１に記載のツールホルダ位置決め装置において、ツールホルダ（２）を刃物台（１）の座面（１ａ，１ｂ・・・１ｎ）に固定する固定用ボルトが交差軸（Ｘ，Ｙ）上又は交差軸（Ｘ，Ｙ）の近傍に設けられたものとすることも可能である。   As described in claim 9, in the tool holder positioning device according to claim 1, for fixing the tool holder (2) to the seating surface (1a, 1b ... 1n) of the tool post (1). The bolts may be provided on the cross axis (X, Y) or in the vicinity of the cross axis (X, Y).

請求項１０に記載されるように、請求項１に記載のツールホルダ位置決め装置において、すべての凸部（１６ａ，１６ｂ，１６ｃ，１６ｄ，３２ａ，３２ｂ）又は凹部（１５ａ，１５ｂ，１５ｃ，１５ｄ，３３ａ，３３ｂ）が環状部材（２７，３６）に形成され、ツールホルダ（２）を取り巻くように座面（１ａ，１ｂ・・・１ｎ）又は連結面（２ａ）にそれぞれ形成された環状溝（２８，３９）に各環状部材（２７，３６）が嵌め込まれ固定されたものとすることも可能である。   As described in claim 10, in the tool holder positioning device according to claim 1, all the convex portions (16a, 16b, 16c, 16d, 32a, 32b) or the concave portions (15a, 15b, 15c, 15d, 33a, 33b) are formed on the annular members (27, 36), and annular grooves (1a, 1b,... 1n) or connecting grooves (2a) are formed respectively around the tool holder (2). It is also possible that each annular member (27, 36) is fitted and fixed to 28, 39).

本発明は次のような作用効果を奏する。   The present invention has the following effects.

すなわち、請求項１に係る発明によれば、刃物台（１）の座面（１ａ，１ｂ・・・１ｎ）に設けられた複数個の凸部（１６ａ，１６ｂ，１６ｃ，１６ｄ，３２ａ，３２ｂ）又は複数個の凹部（１５ａ，１５ｂ，１５ｃ，１５ｄ，３３ａ，３３ｂ）と、上記座面（１ａ，１ｂ・・・１ｎ）に合致可能なツールホルダ（２）の連結面（２ａ）に、上記複数個の凸部（１６ａ，１６ｂ，１６ｃ，３２ａ，３２ｂ）又は上記複数個の凹部（１５ａ，１５ｂ，３３ａ，３３ｂ）と嵌合可能に形成された凹部（１５ａ，１５ｂ，１５ｃ，１５ｄ，３３ａ，３３ｂ）又は凸部（１６ａ，１６ｂ，１６ｃ，１６ｄ，３２ａ，３２ｂ）とを有し、上記座面（１ａ，１ｂ・・・１ｎ）と連結面（２ａ）とが密着する際に摺接するテーパ面（２３，２４，３４，３５）が凹凸部にそれぞれ対称形に形成されたツールホルダ位置決め装置において、上記複数個の凸部（１６ａ，１６ｂ，１６ｃ，１６ｄ，３２ａ，３２ｂ）又は複数個の凹部（１５ａ，１５ｂ，１５ｃ，１５ｄ，３３ａ，３３ｂ）が、上記座面（１ａ，１ｂ・・・１ｎ）に含まれる交差軸（Ｘ，Ｙ）上に少なくとも一つずつ設けられ、上記複数個の凸部（１６ａ，１６ｂ，１６ｃ，１６ｄ，３２ａ，３２ｂ）又は上記複数個の凹部（１５ａ，１５ｂ，１５ｃ，１５ｄ，３３ａ，３３ｂ）と嵌合可能な凹部（１５ａ，１５ｂ，１５ｃ，１５ｄ，３３ａ，３３ｂ）又は凸部（１６ａ，１６ｂ，１６ｃ，１６ｄ，３２ａ，３２ｂ）が、上記連結面（２ａ）に含まれる交差軸（Ｘ，Ｙ）上に設けられ、上記凸部（１６ａ，１６ｂ，１６ｃ，１６ｄ，３２ａ，３２ｂ）には、上記座面（１ａ，１ｂ・・・１ｎ）又は連結面（２ａ）に平行な複数個のすり割り（１９）が、凸部（１６ａ，１６ｂ，１６ｃ，１６ｄ，３２ａ，３２ｂ）の置かれる上記軸（Ｘ又はＹ）の方向に互い違いに切り込まれることにより、各凸部（１６ａ，１６ｂ，１６ｃ，１６ｄ，３２ａ，３２ｂ）が上記座面（１ａ，１ｂ・・・１ｎ）又は連結面（２ａ）に垂直な方向に弾性変形可能とされ、上記各凹凸部（１５ａ，１５ｂ，１６ａ，１６ｂ，１６ｃ，３２ａ，３２ｂ，３３ａ，３３ｂ）のテーパ面（２３，２４，３４，３５）は各凹凸部（１５ａ，１５ｂ，１５ｃ，１５ｄ，１６ａ，１６ｂ，１６ｃ，３２ａ，３２ｂ，３３ａ，３３ｂ）の置かれる上記軸（Ｘ又はＹ）に関し対称形になるように形成されたものであるから、凸部（１６ａ，１６ｂ，１６ｃ，１６ｄ，３２ａ，３２ｂ）のテーパ面（２３，３４）を凹部（１５ａ，１５ｂ，３３ａ，３３ｂ）のテーパ面（２４，３５）に対向させることで、凹凸部（１５ａ，１５ｂ，１５ｃ，１５ｄ，１６ａ，１６ｂ，１６ｃ，３２ａ，３２ｂ，３３ａ，３３ｂ）を容易に嵌め合わせることができ、凹凸部（１５ａ，１５ｂ，１５ｃ，１５ｄ，３３ａ，３３ｂ，１６ａ，１６ｂ，１６ｃ，１６ｄ，３２ａ，３２ｂ）に傷が付き難くすることができる。また、凸部（１６ａ，１６ｂ，１６ｃ，１６ｄ，３２ａ，３２ｂ）は座面（１ａ，１ｂ・・・１ｎ）又は連結面（２ａ）に垂直な方向に弾性変形可能であるから、凸部（１６ａ，１６ｂ，１６ｃ，１６ｄ，３２ａ，３２ｂ）が凹部（１５ａ，１５ｂ，１５ｃ，１５ｄ，３３ａ，３３ｂ）内に侵入すると、テーパ面同士が円滑に面接触し、続いて座面（１ａ，１ｂ・・・１ｎ）と連結面（２ａ）とが正確に密着する。さらに、ツールホルダ（２）の連結面（２ａ）を刃物台（１）の座面（１ａ，１ｂ・・・１ｎ）に連結したときに、直交二軸（Ｘ，Ｙ）に垂直な軸（Ｚ）の周方向にずれないように直交二軸（Ｘ，Ｙ）同士を合致させることができる。従って、ツールホルダ（２）の刃物台（１）に対する高精度な位置決めが可能になる。   That is, according to the first aspect of the present invention, the plurality of convex portions (16a, 16b, 16c, 16d, 32a, 32b) provided on the seating surfaces (1a, 1b... 1n) of the tool post (1). ) Or a plurality of recesses (15a, 15b, 15c, 15d, 33a, 33b) and a connecting surface (2a) of the tool holder (2) that can match the seating surfaces (1a, 1b... 1n), The plurality of protrusions (16a, 16b, 16c, 32a, 32b) or the plurality of recesses (15a, 15b, 33a, 33b) and the recesses (15a, 15b, 15c, 15d, 33a, 33b) or protrusions (16a, 16b, 16c, 16d, 32a, 32b), and slides when the seating surfaces (1a, 1b... 1n) and the coupling surface (2a) are in close contact with each other. Tapered surface (23, 24, 34, 35 In the tool holder positioning device in which the concave and convex portions are respectively formed symmetrically, the plurality of convex portions (16a, 16b, 16c, 16d, 32a, 32b) or the plurality of concave portions (15a, 15b, 15c, 15d, 33a, 33b) are provided at least one on each of the intersecting axes (X, Y) included in the seating surfaces (1a, 1b... 1n), and the plurality of convex portions (16a, 16b, 16c, 16d, 32a, 32b) or a plurality of recesses (15a, 15b, 15c, 15d, 33a, 33b) and recesses (15a, 15b, 15c, 15d, 33a, 33b) or projections (16a, 16b, 16c, 16d, 32a, 32b) are provided on the intersecting axes (X, Y) included in the connecting surface (2a), and the convex portions (16a, 16b, 16c, 16d, 32). 32b) has a plurality of slits (19) parallel to the seating surfaces (1a, 1b... 1n) or the connecting surface (2a), and convex portions (16a, 16b, 16c, 16d, 32a, 32b) are alternately cut in the direction of the axis (X or Y) in which each of the protrusions (32b) is placed, so that each convex portion (16a, 16b, 16c, 16d, 32a, 32b) becomes the seat surface (1a, 1b... 1n) or can be elastically deformed in a direction perpendicular to the connecting surface (2a), and the concave and convex portions (15a, 15b, 16a, 16b, 16c, 32a, 32b, 33a, 33b) are tapered surfaces (23, 24, 34, 35) are formed so as to be symmetrical with respect to the axis (X or Y) on which the concave and convex portions (15a, 15b, 15c, 15d, 16a, 16b, 16c, 32a, 32b, 33a, 33b) are placed. Because it is By making the tapered surfaces (23, 34) of the convex portions (16a, 16b, 16c, 16d, 32a, 32b) face the tapered surfaces (24, 35) of the concave portions (15a, 15b, 33a, 33b) The parts (15a, 15b, 15c, 15d, 16a, 16b, 16c, 32a, 32b, 33a, 33b) can be easily fitted together, and the concavo-convex parts (15a, 15b, 15c, 15d, 33a, 33b, 16a, 16b, 16c, 16d, 32a, 32b) can be made difficult to be damaged. Further, the convex portions (16a, 16b, 16c, 16d, 32a, 32b) can be elastically deformed in a direction perpendicular to the seating surface (1a, 1b,... 1n) or the connecting surface (2a). 16a, 16b, 16c, 16d, 32a, 32b) penetrates into the recesses (15a, 15b, 15c, 15d, 33a, 33b), the tapered surfaces smoothly come into surface contact with each other, and then the seating surfaces (1a, 1b). ... 1n) and the connecting surface (2a) are in close contact with each other. Furthermore, when the connecting surface (2a) of the tool holder (2) is connected to the seating surfaces (1a, 1b... 1n) of the tool post (1), the axes perpendicular to the orthogonal two axes (X, Y) ( The orthogonal two axes (X, Y) can be matched so as not to be displaced in the circumferential direction of Z). Therefore, the tool holder (2) can be positioned with high accuracy with respect to the tool post (1).

請求項２に記載されるように、請求項１に記載のツールホルダ位置決め装置において、凸部（１６ａ，１６ｂ，１６ｃ，１６ｄ）を略立方体又は略直方体に形成した場合は、テーパ面（２３）を大きな面積で形成することができる。   As described in claim 2, in the tool holder positioning device according to claim 1, when the convex portions (16a, 16b, 16c, 16d) are formed in a substantially cube or a substantially rectangular parallelepiped, the tapered surface (23) Can be formed in a large area.

請求項３に記載されるように、請求項１に記載のツールホルダ位置決め装置において、凸部（３２ａ，３２ｂ）を円錐台形とする場合は、凸部（３２ａ，３２ｂ）を簡易かつ正確に形成することができる。   As described in claim 3, in the tool holder positioning device according to claim 1, when the convex portions (32a, 32b) have a truncated cone shape, the convex portions (32a, 32b) are easily and accurately formed. can do.

請求項４に記載されるように、請求項１乃至請求項３のいずれかに記載のツールホルダ位置決め装置において、すべての凸部（１６ａ，１６ｂ，１６ｃ，１６ｄ，３２ａ，３２ｂ）が連結部材（２７）で連結され一体化されたものとすると、ツールホルダ（２）又は刃物台（１）に対し凸部（１６ａ，１６ｂ，１６ｃ，１６ｄ，３２ａ，３２ｂ）を簡易かつ正確に着脱することができる。   As described in claim 4, in the tool holder positioning device according to any one of claims 1 to 3, all the convex portions (16a, 16b, 16c, 16d, 32a, 32b) are connected members ( 27), the projections (16a, 16b, 16c, 16d, 32a, 32b) can be easily and accurately attached to and detached from the tool holder (2) or the tool post (1). it can.

請求項５に記載されるように、請求項１乃至請求項４のいずれかに記載のツールホルダ位置決め装置において、凹部（１５ａ，１５ｂ，１５ｃ，１５ｄ）を各軸（Ｘ又はＹ）に沿って伸びる溝とした場合は、凹部（１５ａ，１５ｂ，１５ｃ，１５ｄ）を簡易に形成することができる。   As described in claim 5, in the tool holder positioning device according to any one of claims 1 to 4, the recesses (15a, 15b, 15c, 15d) are arranged along each axis (X or Y). When the groove is extended, the recesses (15a, 15b, 15c, 15d) can be easily formed.

請求項６に記載されるように、請求項１乃至請求項４のいずれかに記載のツールホルダ位置決め装置において、凹部（３３ａ，３３ｂ）を凸部（３２ａ，３２ｂ）と嵌合する雌穴とした場合は、凹部（３３ａ，３３ｂ）を簡易かつ正確に形成することができる。   As described in claim 6, in the tool holder positioning device according to any one of claims 1 to 4, a female hole for fitting the concave portion (33a, 33b) with the convex portion (32a, 32b); In this case, the recesses (33a, 33b) can be formed easily and accurately.

請求項７に記載されるように、請求項１に記載のツールホルダ位置決め装置において、交差軸（Ｘ，Ｙ）を直交二軸とする場合は、座面（１ａ，１ｂ・・・１ｎ）と連結面（２ａ）の交差軸（Ｘ，Ｙ）同士を合致させることが容易になる。すなわち、凹凸部（１５ａ，１５ｂ，１５ｃ，１５ｄ，３３ａ，３３ｂ，１６ａ，１６ｂ，１６ｃ，１６ｄ，３２ａ，３２ｂ）同士をより正確に位置合わせすることが可能になる。   As described in claim 7, in the tool holder positioning device according to claim 1, when the intersecting axes (X, Y) are two orthogonal axes, the bearing surface (1a, 1b... 1n) and It becomes easy to match the intersecting axes (X, Y) of the connecting surface (2a). That is, it becomes possible to align the uneven portions (15a, 15b, 15c, 15d, 33a, 33b, 16a, 16b, 16c, 16d, 32a, 32b) more accurately.

請求項８に記載されるように、請求項１に記載のツールホルダ位置決め装置において、交差軸（Ｘ，Ｙ）が座面（１ａ，１ｂ・・・１ｎ）又は連結面（２ａ）に含まれる鉛直軸（Ｐ）又は水平軸（Ｑ）に交差するものとする場合は、図１９に示すように、ツールホルダ（２）を水平にして刃物台（１）の座面（１ａ，１ｂ・・・１ｎ）に取り付ける際、図１６に示すように、鉛直軸（Ｐ）を挟むように配置される各凸部（１６ａ，１６ｂ，１６ｃ，１６ｄ，３２ａ，３２ｂ）又は各凹部（１５ａ，１５ｂ，１５ｃ，１５ｄ，３３ａ，３３ｂ）にツールホルダ（２）の重量（Ｗ）が割り振られるので、ツールホルダ（２）の取り付け精度が更に向上する。   As described in claim 8, in the tool holder positioning device according to claim 1, the intersecting axes (X, Y) are included in the seating surface (1a, 1b... 1n) or the coupling surface (2a). When it is assumed to intersect the vertical axis (P) or the horizontal axis (Q), as shown in FIG. 19, the tool holder (2) is leveled and the seating surface (1a, 1b,. When attaching to 1n), as shown in FIG. 16, each convex part (16a, 16b, 16c, 16d, 32a, 32b) or each concave part (15a, 15b, arranged so as to sandwich the vertical axis (P) Since the weight (W) of the tool holder (2) is allocated to 15c, 15d, 33a, 33b), the mounting accuracy of the tool holder (2) is further improved.

請求項９に記載されるように、請求項１に記載のツールホルダ位置決め装置において、ツールホルダ（２）を刃物台（１）の座面（１ａ，１ｂ・・・１ｎ）に固定する固定用ボルトが交差軸（Ｘ，Ｙ）上又は交差軸（Ｘ，Ｙ）の近傍に設けられたものとする場合は、凸部（１６ａ，１６ｂ，１６ｃ，１６ｄ，３２ａ，３２ｂ）を座面（１ａ，１ｂ・・・１ｎ）又は連結面（２ａ）に対し正確に垂直方向に変形させることができ、したがってツールホルダ（２）の取り付け精度を更に高めることができる。   As described in claim 9, in the tool holder positioning device according to claim 1, for fixing the tool holder (2) to the seating surface (1a, 1b ... 1n) of the tool post (1). When the bolt is provided on the cross axis (X, Y) or in the vicinity of the cross axis (X, Y), the convex portions (16a, 16b, 16c, 16d, 32a, 32b) are formed on the seat surface (1a). , 1b... 1n) or the connecting surface (2a) can be accurately deformed in the vertical direction, and therefore the mounting accuracy of the tool holder (2) can be further increased.

請求項１０に記載されるように、請求項１に記載のツールホルダ位置決め装置において、すべての凸部（１６ａ，１６ｂ，１６ｃ，１６ｄ，３２ａ，３２ｂ）又は凹部（１５ａ，１５ｂ，１５ｃ，１５ｄ，３３ａ，３３ｂ）が環状部材（２７，３６）に形成され、ツールホルダ（２）を取り巻くように座面（１ａ，１ｂ・・・１ｎ）又は連結面（２ａ）にそれぞれ形成された環状溝（２８，３９）に各環状部材（２７，３６）が嵌め込まれ固定されたものとする場合は、凸部（１６ａ，１６ｂ，１６ｃ，１６ｄ，３２ａ，３２ｂ）又は凹部（１５ａ，１５ｂ，１５ｃ，１５ｄ，３３ａ，３３ｂ）の座面（１ａ，１ｂ・・・１ｎ）又は連結面（２ａ）に対する取り付け精度を高めることができ、ひいてはツールホルダ（２）の刃物台（１）に対する位置決め精度を高めることができる。   As described in claim 10, in the tool holder positioning device according to claim 1, all the convex portions (16a, 16b, 16c, 16d, 32a, 32b) or the concave portions (15a, 15b, 15c, 15d, 33a, 33b) are formed on the annular members (27, 36), and annular grooves (1a, 1b,... 1n) or connecting grooves (2a) are formed respectively around the tool holder (2). 28, 39), when each annular member (27, 36) is fitted and fixed, the convex portion (16a, 16b, 16c, 16d, 32a, 32b) or the concave portion (15a, 15b, 15c, 15d). , 33a, 33b) with respect to the seating surface (1a, 1b... 1n) or the connecting surface (2a) can be improved, and as a result, the tool holder (2) can be attached to the tool post (1). It is possible to improve the positioning accuracy that.

以下、図面を参照して発明を実施するための最良の形態について説明する。   The best mode for carrying out the invention will be described below with reference to the drawings.

＜実施の形態１＞
ここで説明する工作機械はターレット式旋盤であり、図１及び図６に示すように刃物台としてターレット１を有し、ターレット１の複数箇所の座面１ａ，１ｂ・・・１ｎにそれぞれツールホルダ２の連結面２ａを合致させてツールホルダ２をターレット１に固定するようになっている。図１に示すツールホルダ２は各種存在するツールホルダのうちの一例であり、各種刃物を保持した他のツールホルダと共にターレット１の任意の座面１ａに装着される。 <Embodiment 1>
The machine tool described here is a turret type lathe, which has a turret 1 as a tool post as shown in FIGS. 1 and 6, and has tool holders on a plurality of seating surfaces 1a, 1b,. The tool holder 2 is fixed to the turret 1 by matching the two connecting surfaces 2a. A tool holder 2 shown in FIG. 1 is an example of various types of tool holders, and is attached to an arbitrary seating surface 1a of the turret 1 together with other tool holders that hold various kinds of blades.

図１乃至図３で例示されるツールホルダ２は、そのハウジング３内に、旋盤側から動力を受け取る伝動軸４と、伝動軸４から動力が伝達される主軸であるスピンドル５とを備える。伝動軸４とスピンドル５とはそれらの中心線が直角に交差するように配置され、それぞれベアリング６，７を介してハウジング３に回転自在に支持される。伝動軸４の一端はハウジング３外に突出し、そこには図示しない旋盤側の駆動軸に連結される平行キー４ａが形成される。伝動軸４のハウジング３内に入り込んだ他端には第一の傘歯車８が固定される。スピンドル５の一端はハウジング３外に突出し、そこには図示しない刃物を着脱するためのチャックが設けられる。スピンドル５のハウジング３内に入り込んだ箇所には上記第一の傘歯車８と噛み合う第二の傘歯車９が固定される。   The tool holder 2 illustrated in FIGS. 1 to 3 includes in its housing 3 a transmission shaft 4 that receives power from the lathe side and a spindle 5 that is a main shaft to which power is transmitted from the transmission shaft 4. The transmission shaft 4 and the spindle 5 are arranged so that their center lines intersect at right angles, and are rotatably supported by the housing 3 via bearings 6 and 7, respectively. One end of the transmission shaft 4 protrudes out of the housing 3, and a parallel key 4a connected to a lathe drive shaft (not shown) is formed there. A first bevel gear 8 is fixed to the other end of the transmission shaft 4 that has entered the housing 3. One end of the spindle 5 protrudes outside the housing 3, and a chuck for attaching and detaching a cutter (not shown) is provided there. A second bevel gear 9 that meshes with the first bevel gear 8 is fixed to a portion of the spindle 5 that enters the housing 3.

伝動軸４の一端の平行キー４ａは、ターレット１の内部で旋盤のフレーム側に固定された環状レール１０の溝１０ａにスライド可能に嵌り込む。ターレット１が旋回すると、ツールホルダ２が他のツールホルダと共に移動し、各ツールホルダの平行キー４ａがレール１０の溝１０ａ内を滑る。レール１０は駆動ポジションにおいて途切れており、所望のツールホルダの平行キー４ａがレール１０の溝１０ａから離脱して旋盤側の図示しない駆動軸に連結される。駆動軸が回転すると、伝動軸４からスピンドル５へと回転が伝達され、スピンドル５のチャックに把持された図示しない刃物がワークを加工する。   The parallel key 4a at one end of the transmission shaft 4 is slidably fitted into the groove 10a of the annular rail 10 fixed to the lathe frame side inside the turret 1. When the turret 1 turns, the tool holder 2 moves together with other tool holders, and the parallel key 4a of each tool holder slides in the groove 10a of the rail 10. The rail 10 is disconnected at the drive position, and the parallel key 4a of the desired tool holder is detached from the groove 10a of the rail 10 and connected to a drive shaft (not shown) on the lathe side. When the drive shaft rotates, the rotation is transmitted from the transmission shaft 4 to the spindle 5, and a cutting tool (not shown) held by the chuck of the spindle 5 processes the workpiece.

チャックは、スピンドル５の空洞内に収納されたコレット１１と、コレット１１の先端側テーパ面に被さるリテーナ１２と、リテーナ１２及びコレット１１に跨るように被さり、リテーナ１２にボール結合し、コレット１１に螺合する刃物締付用ナット１３とを有する。図示しない刃物のシャンクをスピンドル５の先端からコレット１１内に挿入し、刃物締付用ナット１３を締付方向に回すと、リテーナ１２を介してコレット１１が縮径し、刃物のシャンクを締め付けて固定する。逆に刃物締付用ナット１３を緩め方向に回すと、コレット１１がリテーナ１２から開放されて拡径し、刃物のシャンクを緩めて開放する。このように、刃物締付用ナット１３を右回り又は左回りに回すことで、刃物がスピンドル５のチャックにクランプされ又はスピンドル５のチャックからアンクランプされる。   The chuck covers the collet 11 housed in the cavity of the spindle 5, the retainer 12 covering the tip side taper surface of the collet 11, the retainer 12 and the collet 11 so as to straddle, and the ball is coupled to the retainer 12. It has a knife 13 for screw tightening. When a shank of a cutter (not shown) is inserted into the collet 11 from the tip of the spindle 5 and the cutter clamping nut 13 is turned in the clamping direction, the collet 11 is reduced in diameter via the retainer 12, and the cutter shank is tightened. Fix it. Conversely, when the cutter tightening nut 13 is turned in the loosening direction, the collet 11 is released from the retainer 12 to expand its diameter, and the shank of the cutter is loosened and released. Thus, by turning the cutter clamping nut 13 clockwise or counterclockwise, the cutter is clamped to the chuck of the spindle 5 or unclamped from the chuck of the spindle 5.

また、図６に例示されるように、ターレット１は、正多角柱形に形成され、その周面に多数の座面１ａ，１ｂ・・・１ｎを備える。各座面１ａ，１ｂ・・・１ｎには、ツールホルダ２のシャンク部３ａが挿入される挿入穴１４が形成される。シャンク部３ａは伝動軸４を取り囲むようにハウジング３から突出する円筒体である。   Moreover, as illustrated in FIG. 6, the turret 1 is formed in a regular polygonal column shape, and includes a large number of seating surfaces 1 a, 1 b,. In each seating surface 1a, 1b... 1n, an insertion hole 14 into which the shank portion 3a of the tool holder 2 is inserted is formed. The shank portion 3 a is a cylindrical body that protrudes from the housing 3 so as to surround the transmission shaft 4.

このターレット式旋盤は、ツールホルダ２をターレット１上に正確に位置決めするためにツールホルダ位置決め装置を備える。   The turret type lathe includes a tool holder positioning device for accurately positioning the tool holder 2 on the turret 1.

ツールホルダ位置決め装置は、図１乃至図６に示すように、刃物台であるターレット１の各座面１ａ，１ｂ・・・１ｎに設けられた複数個の凹部１５ａ，１５ｂと、所望の座面１ａ，１ｂ・・・１ｎに合致可能なツールホルダ２の連結面２ａに、上記複数個の凹部１５ａ，１５ｂと嵌合可能に形成された凸部１６ａ，１６ｂ，１６ｃとを備える。   As shown in FIGS. 1 to 6, the tool holder positioning device includes a plurality of recesses 15a, 15b provided on each seating surface 1a, 1b... 1n of the turret 1, which is a tool post, and a desired seating surface. The connecting surface 2a of the tool holder 2 that can match 1a, 1b,..., 1n is provided with convex portions 16a, 16b, 16c formed so as to be able to fit into the plurality of concave portions 15a, 15b.

凹部１５ａ，１５ｂは、図６に示すように、ターレット１の座面１ａ，１ｂ・・・１ｎに溝として形成される。これらの溝は凸部１６ａ，１６ｂ，１６ｃに対峙するように設けられる。   The recesses 15a and 15b are formed as grooves in the seating surfaces 1a, 1b,..., 1n of the turret 1, as shown in FIG. These grooves are provided so as to face the convex portions 16a, 16b, and 16c.

凸部１６ａ，１６ｂ，１６ｃは、図４、図５Ａ、図５Ｂ及び図５Ｃに示すように、概ね立方体又は直方体に形成され、先端面１７と基端面１８は平行に形成される。この立方体又は直方体の直交する三本の稜に平行にｕ軸、ｖ軸、ｗ軸の直交三軸を考えると、先端面１７と基端面１８はｕｖ軸に平行に形成され、一対の対向する側面はｖｗ軸に平行に形成され、他の対向する側面はｗｕ面に平行に形成される。   As shown in FIGS. 4, 5A, 5B, and 5C, the convex portions 16a, 16b, and 16c are formed in a substantially cubic or rectangular parallelepiped shape, and the distal end surface 17 and the proximal end surface 18 are formed in parallel. Considering the three orthogonal axes of the u-axis, the v-axis, and the w-axis parallel to the three orthogonal ridges of the cube or cuboid, the distal end surface 17 and the base end surface 18 are formed in parallel to the uv axis, and a pair of opposing surfaces. The side surfaces are formed parallel to the vw axis, and the other opposing side surfaces are formed parallel to the wu surface.

各凸部１６ａ，１６ｂ，１６ｃには、ターレット１の座面１ａ，１ｂ・・・１ｎ又はこの座面１ａ，１ｂ・・・１ｎに当てられた状態のツールホルダ２の連結面２ａに平行に、複数個のすり割り１９が互い違いに切り込まれる。より具体的には、すり割り１９は、ｗｕ面に平行な相対向する側面の一方から他方に向かって、ｕｖ面に平行に、互い違いに切り込まれる。図示例では二つのすり割り１９，１９が設けられているが、三つ以上設けることも可能である。このように複数個のすり割り１９が互い違いに形成されることにより、図７Ａ、図７Ｂ及び図７Ｃに示すように、凸部１６ａ，１６ｂ，１６ｃはそれぞれ上下方向(ｗ軸方向)に圧縮力を受けると、ｗ軸方向に弾性変形可能である。   Each of the convex portions 16a, 16b, 16c is parallel to the seating surfaces 1a, 1b,... 1n of the turret 1 or the connecting surface 2a of the tool holder 2 applied to the seating surfaces 1a, 1b,. A plurality of slots 19 are cut alternately. More specifically, the slits 19 are alternately cut in parallel to the uv surface from one of the opposing side surfaces parallel to the wu surface to the other. In the example shown in the figure, two slots 19, 19 are provided, but three or more slots may be provided. By forming the plurality of slits 19 alternately in this way, as shown in FIGS. 7A, 7B, and 7C, the convex portions 16a, 16b, and 16c are compressed in the vertical direction (w-axis direction), respectively. When received, it is elastically deformable in the w-axis direction.

図５Ａ及び図５Ｂに示すように、各凸部１６ａ，１６ｂ，１６ｃには、固定用ネジ２０を通す孔２１が設けられる。この孔２０は、凸部１６ａ，１６ｂ，１６ｃの先端面１７側から全てのすり割り１９を横切るように伸びる部分がネジ頭を通す大径孔として形成され、基端面側を貫通する部分がネジ軸を通す小径孔として形成される。図１乃至図３に示すように、各凸部１６ａ，１６ｂ，１６ｃはツールホルダ２の連結面２ａの複数箇所にそれぞれ形成された凹陥部２２内に基端面１８側から挿入され、固定用ネジ２０がツールホルダ２のハウジング３に螺合することによりツールホルダ２の連結面２ａに固定される。   As shown in FIGS. 5A and 5B, each convex portion 16a, 16b, 16c is provided with a hole 21 through which the fixing screw 20 is passed. The hole 20 is formed as a large-diameter hole through which the screw head passes through a portion extending from the distal end surface 17 side of the convex portions 16a, 16b, and 16c so as to cross all the slits 19, and a portion penetrating the proximal end surface side is a screw. It is formed as a small-diameter hole through which the shaft passes. As shown in FIGS. 1 to 3, the protrusions 16 a, 16 b, and 16 c are inserted from the base end face 18 side into recessed portions 22 formed at a plurality of locations on the connecting surface 2 a of the tool holder 2, respectively. 20 is screwed into the housing 3 of the tool holder 2 to be fixed to the connecting surface 2 a of the tool holder 2.

図１乃至図３に示すように、凸部１６ａ，１６ｂ，１６ｃのｖｗ面に平行な一対の側面は、凹陥部２２の側面に当接する。このため、凸部１６ａ，１６ｂ，１６ｃは上下方向に圧縮力を受けると、凹陥部２２の側面が案内手段となってｗ軸方向に変形可能となる。   As shown in FIGS. 1 to 3, the pair of side surfaces parallel to the vw surface of the convex portions 16 a, 16 b, and 16 c abut on the side surface of the concave portion 22. For this reason, when the convex portions 16a, 16b, and 16c receive a compressive force in the vertical direction, the side surface of the concave portion 22 becomes a guide means and can be deformed in the w-axis direction.

このように各凸部１６ａ，１６ｂ，１６ｃは、ツールホルダ２の連結面２ａに固定されることにより、凹部１５ａ，１５ｂ内に嵌り込む際にツールホルダ２の連結面２ａ及びターレット１の座面１ａに垂直な方向に直線的に弾性変形可能になる。従って、凸部１６ａ，１６ｂ，１６ｃは、凹部１５ａ，１５ｂ内に滑らかに嵌り込む。   Thus, each convex part 16a, 16b, 16c is fixed to the connection surface 2a of the tool holder 2, and when it fits in the recessed part 15a, 15b, the connection surface 2a of the tool holder 2 and the seat surface of the turret 1 It becomes elastically deformable linearly in a direction perpendicular to 1a. Therefore, the convex portions 16a, 16b, and 16c fit smoothly into the concave portions 15a and 15b.

また、図１、図４及び図６に示すように、凸部１６ａ，１６ｂ，１６ｃと凹部１５ａ，１５ｂには、当接し合うテーパ面２３，２４がそれぞれ形成される。具体的には、凸部１６ａ，１６ｂ，１６ｃのテーパ面２３は先端面１７とｖｗ面に平行な二側面との境界に形成され、凹部１５ａ，１５ｂのテーパ面２４は凹部１５ａ，１５ｂを構成する溝の側面と座面１ａとの境界に形成される。   As shown in FIGS. 1, 4 and 6, tapered surfaces 23 and 24 which abut each other are formed on the convex portions 16a, 16b and 16c and the concave portions 15a and 15b, respectively. Specifically, the tapered surfaces 23 of the convex portions 16a, 16b, and 16c are formed at the boundary between the tip surface 17 and two side surfaces parallel to the vw surface, and the tapered surfaces 24 of the concave portions 15a and 15b constitute the concave portions 15a and 15b. It is formed at the boundary between the side surface of the groove and the seat surface 1a.

図７Ａに示すように、ツールホルダ２の連結面２ａをターレット１の座面１ａに近づけると、凹部１５ａ，１５ｂと凸部１６ａ，１６ｂ，１６ｃはテーパ面２４，２３を介して対峙するので、凹部１５ａ，１５ｂと凸部１６ａ，１６ｂ，１６ｃは容易に嵌り合うこととなり、凹凸部１５ａ，１５ｂ，１６ａ，１６ｂ，１６ｃの傷つきが防止される。図７Ｂに示すように、凹部１５ａ，１５ｂと凸部１６ａ，１６ｂ，１６ｃのテーパ面２４，２３同士が接触し、連結面２ａと座面１ａとの間に僅かな隙間δが形成される。そこで、図示しない固定用ボルトが図３に示すツールホルダ２のハウジング３の通し孔２５に挿入され、図６に示すターレット１のネジ孔２６に螺入せしめられると、図７Ｃ及び図７Ｄに示すように、凸部１６ａ，１６ｂ，１６ｃは連結面２ａと座面１ａとに垂直なＺ軸方向に直線的に弾性変形し、凸部１６ａ，１６ｂ，１６ｃと凹部１５ａ，１５ｂの両テーパ面２３，２４が摺接し、ツールホルダ２の連結面２ａがターレット１の座面１ａに滑らかに密着する。   As shown in FIG. 7A, when the connecting surface 2a of the tool holder 2 is brought close to the seating surface 1a of the turret 1, the concave portions 15a, 15b and the convex portions 16a, 16b, 16c face each other through the tapered surfaces 24, 23. The concave portions 15a, 15b and the convex portions 16a, 16b, 16c easily fit together, and the concave and convex portions 15a, 15b, 16a, 16b, 16c are prevented from being damaged. As shown in FIG. 7B, the concave surfaces 15a, 15b and the tapered surfaces 24, 23 of the convex portions 16a, 16b, 16c are in contact with each other, and a slight gap δ is formed between the connecting surface 2a and the seating surface 1a. Therefore, when a fixing bolt (not shown) is inserted into the through hole 25 of the housing 3 of the tool holder 2 shown in FIG. 3 and screwed into the screw hole 26 of the turret 1 shown in FIG. 6, it is shown in FIGS. 7C and 7D. Thus, the convex portions 16a, 16b, 16c are elastically deformed linearly in the Z-axis direction perpendicular to the connecting surface 2a and the seating surface 1a, and both the tapered surfaces 23 of the convex portions 16a, 16b, 16c and the concave portions 15a, 15b. , 24 are in sliding contact, and the connecting surface 2a of the tool holder 2 is in close contact with the seating surface 1a of the turret 1 smoothly.

図３に示すように、上記凸部１６ａ，１６ｂ，１６ｃはツールホルダ２の連結面２ａに含まれる交差軸である直交二軸（ＸＹ軸）上に設けられる。ここで、Ｘ軸は上記スピンドル５に平行である。また、ＸＹ軸に直交するＺ軸が、スピンドル軸５と直交する伝動軸４の軸心を通る。凸部１６ａ，１６ｂ，１６ｃは図３ではＹ軸上に二個設けられるが、一個のみ設けてもよいし、Ｘ軸上に二個設けてもよい。   As shown in FIG. 3, the protrusions 16 a, 16 b, and 16 c are provided on two orthogonal axes (XY axes) that are intersecting axes included in the connection surface 2 a of the tool holder 2. Here, the X axis is parallel to the spindle 5. The Z axis orthogonal to the XY axis passes through the axis of the transmission shaft 4 orthogonal to the spindle shaft 5. Although two protrusions 16a, 16b, and 16c are provided on the Y axis in FIG. 3, only one may be provided or two may be provided on the X axis.

また、凸部１６ａ，１６ｂ，１６ｃは、その各々が乗ったＸ軸又はＹ軸の方向にすり割り１９が切り込まれた状態となるように連結面２ａ上に固定される。図４に示すように、凸部１６ａ，１６ｂ，１６ｃはｖ方向よりもｕ方向のほうが高い剛性を示すので、すり割り１９の切り込み方向を凸部１６ａ，１６ｂ，１６ｃの乗ったＸ軸又はＹ軸の方向に設定することにより、Ｘ軸上の凸部１６ａはＹ軸方向に変形し難く、Ｙ軸上の凸部１６ｂ，１６ｃはＸ軸方向に変形し難くなる。一方、上記凹部１５ａ，１５ｂは、図６に示すように、ターレット１の各座面１ａ，１ｂ・・・１ｎに含まれる交差軸である直交二軸のＸＹ軸上に設けられる。また、各凹凸部１５ａ，１５ｂ，１６ａ，１６ｂ，１６ｃのテーパ面２４，２３は各々の置かれる上記軸Ｘ，Ｙに関し対称形になるように形成される。これにより、凸部１６ａ，１６ｂ，１６ｃと凹部１５ａ，１５ｂが嵌合すると、各凸部は軸Ｘ又は軸Ｙを挟む二面で拘束されることとなり、連結面２ａに含まれるＸＹ軸がＺ軸回りのθ方向に捩じれることなく座面１ａ，１ｂ・・・１ｎのＸＹ軸に合致し、従ってツールホルダ２がターレット１に高精度で位置決めされることになる。   The convex portions 16a, 16b, and 16c are fixed on the connecting surface 2a so that the slit 19 is cut in the direction of the X axis or the Y axis on which each of the convex portions 16a, 16b, and 16c is placed. As shown in FIG. 4, since the convex portions 16a, 16b, and 16c have higher rigidity in the u direction than in the v direction, the cutting direction of the slit 19 is set to the X axis or Y axis on which the convex portions 16a, 16b, and 16c are mounted. By setting in the direction of the axis, the convex part 16a on the X-axis is difficult to deform in the Y-axis direction, and the convex parts 16b, 16c on the Y-axis are difficult to deform in the X-axis direction. On the other hand, as shown in FIG. 6, the recesses 15 a and 15 b are provided on two orthogonal XY axes that are intersecting axes included in the seating surfaces 1 a, 1 b, and 1 n of the turret 1. In addition, the tapered surfaces 24 and 23 of the concavo-convex portions 15a, 15b, 16a, 16b, and 16c are formed so as to be symmetrical with respect to the axes X and Y on which they are placed. Thus, when the convex portions 16a, 16b, 16c and the concave portions 15a, 15b are fitted, each convex portion is constrained by two surfaces sandwiching the axis X or the axis Y, and the XY axis included in the connecting surface 2a is Z. Aligned with the XY axes of the seating surfaces 1a, 1b... 1n without being twisted in the θ direction around the axis, the tool holder 2 is positioned with high accuracy on the turret 1.

次に、上記ツールホルダ位置決め装置の作用について説明する。   Next, the operation of the tool holder positioning device will be described.

（１）ツールホルダ２のシャンク部３ａをターレット１の所望の座面１ａにおける挿入穴１４に挿入し、ツールホルダ２の連結面２ａをターレット１の所望の座面１ａに対向させる。   (1) The shank portion 3a of the tool holder 2 is inserted into the insertion hole 14 in the desired seating surface 1a of the turret 1, and the connecting surface 2a of the tool holder 2 is opposed to the desired seating surface 1a of the turret 1.

（２）図７Ａに示すように、連結面２ａ上から突出する凸部１６ａ，１６ｂ，１６ｃを座面１ａの凹部１５ａ，１５ｂに挿入する。   (2) As shown in FIG. 7A, the protrusions 16a, 16b, and 16c protruding from the connection surface 2a are inserted into the recesses 15a and 15b of the seat surface 1a.

これにより、図７Ｂに示すように、凹部１５ａ，１５ｂと凸部１６ａ，１６ｂ，１６ｃのテーパ面２４，２３同士が接触し、連結面２ａと座面１ａとの間に僅かな隙間δが形成される。   As a result, as shown in FIG. 7B, the concave surfaces 15a and 15b and the tapered surfaces 24 and 23 of the convex portions 16a, 16b and 16c come into contact with each other, and a slight gap δ is formed between the connecting surface 2a and the seating surface 1a. Is done.

（３）図示しない固定用ボルトを図３に示すツールホルダ２のハウジング３の通し孔２５に挿入し、図６に示すターレット１のネジ孔２６に螺入すると、図７Ｃ及び図７Ｄに示すように、凸部１６ａ，１６ｂ，１６ｃが連結面２ａと座面１ａとに垂直なＺ軸方向に直線的に弾性変形し、凸部１６ａ，１６ｂ，１６ｃと凹部１５ａ，１５ｂの両テーパ面２３，２４が摺接し、ツールホルダ２の連結面２ａがターレット１の座面１ａに滑らかに密着する。   (3) When a fixing bolt (not shown) is inserted into the through hole 25 of the housing 3 of the tool holder 2 shown in FIG. 3 and screwed into the screw hole 26 of the turret 1 shown in FIG. 6, as shown in FIGS. 7C and 7D. Further, the convex portions 16a, 16b, and 16c are elastically deformed linearly in the Z-axis direction perpendicular to the coupling surface 2a and the seating surface 1a, and both the tapered surfaces 23 of the convex portions 16a, 16b, and 16c and the concave portions 15a and 15b, 24 is in sliding contact, and the connecting surface 2a of the tool holder 2 is in close contact with the seat surface 1a of the turret 1 smoothly.

また、凸部１６ａ，１６ｂ，１６ｃは、その各々が乗ったＸ軸又はＹ軸の方向にすり割り１９が切り込まれた状態となるように連結面２ａ上に固定されることから、Ｘ軸上の凸部１６ａはＹ軸方向に変形し難く、Ｙ軸上の凸部１６ｂ，１６ｃはＸ軸方向に変形し難くなる。これにより、凸部１６ａ，１６ｂ，１６ｃと凹部１５ａ，１５ｂが嵌合すると、連結面２ａのＸＹ軸がＺ軸回りのθ方向に捩じれることなく座面１ａのＸＹ軸に正確に合致する。   Further, since the convex portions 16a, 16b, and 16c are fixed on the connecting surface 2a so that the slit 19 is cut in the direction of the X axis or the Y axis on which each of the convex portions 16a, 16b, and 16c is mounted, The upper convex portion 16a is difficult to deform in the Y-axis direction, and the convex portions 16b and 16c on the Y-axis are difficult to deform in the X-axis direction. Thus, when the convex portions 16a, 16b, 16c and the concave portions 15a, 15b are fitted, the XY axis of the connecting surface 2a accurately matches the XY axis of the seat surface 1a without being twisted in the θ direction around the Z axis.

かくて、ツールホルダ２がターレット１に高精度で位置決めされた状態で固定される。   Thus, the tool holder 2 is fixed to the turret 1 with high accuracy.

（４）なお、スピンドル５の向きがＸ軸上で反対向きになるように、ツールホルダ２をターレット１に固定することにより、刃物をターレット１の反対側に突出させることができる。   (4) The tool can be protruded to the opposite side of the turret 1 by fixing the tool holder 2 to the turret 1 so that the orientation of the spindle 5 is opposite on the X axis.

（５）ツールホルダ２の連結面２ａがターレット１の座面１ａ上に置かれると同時に、図２に示すように、伝動軸４の一端の平行キー４ａがターレット１の内部で旋盤のフレーム側に固定された環状レール１０の溝１０ａにスライド可能に嵌り込む。   (5) At the same time as the connecting surface 2a of the tool holder 2 is placed on the seating surface 1a of the turret 1, the parallel key 4a at one end of the transmission shaft 4 is located inside the turret 1 as shown in FIG. It fits in the groove | channel 10a of the annular rail 10 fixed to slidable.

（６）ターレット１が旋回すると、ツールホルダ２が図示しない他のツールホルダと共に移動し、各ツールホルダの平行キー４ａがレール１０の溝１０ａ内を滑る。レール１０は駆動ポジションにおいて途切れており、所望のツールホルダ２の平行キー４ａがレール１０の溝１０ａから離脱して旋盤側の図示しない駆動軸に連結される。駆動軸が回転すると、伝動軸４からスピンドル５へと回転が伝達され、スピンドル５のチャックに把持された図示しない刃物がワークを加工する。   (6) When the turret 1 turns, the tool holder 2 moves together with another tool holder (not shown), and the parallel key 4a of each tool holder slides in the groove 10a of the rail 10. The rail 10 is disconnected at the drive position, and the parallel key 4a of the desired tool holder 2 is detached from the groove 10a of the rail 10 and connected to a drive shaft (not shown) on the lathe side. When the drive shaft rotates, the rotation is transmitted from the transmission shaft 4 to the spindle 5, and a cutting tool (not shown) held by the chuck of the spindle 5 processes the workpiece.

＜実施の形態２＞
図８乃至図１１に示すように、すべての凸部１６ａ，１６ｂ，１６ｃが連結部材２７で連結され一体化されている。 <Embodiment 2>
As shown in FIGS. 8 to 11, all the convex portions 16 a, 16 b, 16 c are connected and integrated by a connecting member 27.

連結部材２７は、図１１Ａ及び図１１Ｂに示すように、剛性のある例えば環状部材であるリングとして形成される。このリング上に実施の形態１に示した凸部１６ａ，１６ｂ，１６ｃがリングと一体成形され、或いは接着等によりリングに固着される。図９及び図１０に示すように、この連結部材２７はその中心をツールホルダ２のシャンク部３ａが貫通する程度の大きさ及び形状に形成され、シャンク部３ａを取り巻くようにツールホルダ２のハウジング３に形成された環状溝２８内に嵌め込まれ、図１０に示すボルト２９により固定される。図１１Ａ中、符号３０はこのボルト２９を通すために連結部材２７に形成された孔を示す。   As shown in FIGS. 11A and 11B, the connecting member 27 is formed as a rigid ring, for example, an annular member. On the ring, the convex portions 16a, 16b, and 16c shown in the first embodiment are integrally formed with the ring or fixed to the ring by adhesion or the like. As shown in FIGS. 9 and 10, the connecting member 27 is formed in a size and shape that allows the shank portion 3 a of the tool holder 2 to pass through the center thereof, and the housing of the tool holder 2 so as to surround the shank portion 3 a. 3 and is fixed by a bolt 29 shown in FIG. In FIG. 11A, reference numeral 30 indicates a hole formed in the connecting member 27 for passing the bolt 29.

凸部１６ａ，１６ｂ，１６ｃは、連結部材２７がツールホルダ２のハウジング３に固定されることにより、実施の形態１の場合と同じ位置及び姿勢でＺ軸と平行にツールホルダ２の連結面２ａから突出する。   The protrusions 16a, 16b, and 16c are connected to the housing 3 of the tool holder 2 by connecting the connecting member 27 so that the connecting surface 2a of the tool holder 2 is parallel to the Z axis at the same position and orientation as in the first embodiment. Protrude from.

また、図１０、図１１Ａ及び図１１Ｂに示すように、連結部材２７上の凸部１６ａ，１６ｂ，１６ｃ間には必要に応じてセクター状のスペーサ３１が挿入され、上記ボルト２９により連結部材２７と共にツールホルダ２側に固定される。各スペーサ３１の端面は、凸部１６ａ，１６ｂ，１６ｃのｖｗ軸に平行な両側面にすり割り１９の開口部を覆うように取り付けられる。これにより、各凸部１６ａ，１６ｂ，１６ｃは凹部１５ａ，１５ｂ内に入って圧縮されると、ｗ方向すなわちＺ軸に平行に弾性変形する。従って、ツールホルダ２の連結面２ａに含まれる交差軸である直交二軸のＸＹ軸はターレット１の所望の座面１ａに含まれる交差軸である直交二軸のＸＹ軸に円滑に合致することになる。   As shown in FIGS. 10, 11A and 11B, sector-shaped spacers 31 are inserted between the convex portions 16a, 16b and 16c on the connecting member 27 as necessary, and the connecting member 27 is connected by the bolt 29. At the same time, it is fixed to the tool holder 2 side. The end face of each spacer 31 is attached so as to cover the opening of the slit 19 on both side faces parallel to the vw axis of the convex parts 16a, 16b, 16c. Thereby, when each convex part 16a, 16b, 16c enters into the concave part 15a, 15b and is compressed, it elastically deforms in the w direction, that is, parallel to the Z axis. Therefore, the orthogonal two-axis XY axis that is the intersecting axis included in the connecting surface 2a of the tool holder 2 smoothly matches the orthogonal two-axis XY axis that is the intersecting axis included in the desired seating surface 1a of the turret 1. become.

なお、この実施の形態２において図中実施の形態１の部分と同じ部分には同一符号を付して示し、重複した説明を省略することとする。   In the second embodiment, the same parts as those of the first embodiment are denoted by the same reference numerals, and redundant description will be omitted.

＜実施の形態３＞
図１２乃至図１５に示すように、この実施の形態２におけるツールホルダ位置決め装置では、凸部３２ａ，３２ｂが円錐台形に形成され、その外周はテーパ面３４となっている。この凸部３２ａ，３２ｂに実施の形態１、２と同様にしてすり割り１９が形成される。 <Embodiment 3>
As shown in FIGS. 12 to 15, in the tool holder positioning device according to the second embodiment, the convex portions 32 a and 32 b are formed in a truncated cone shape, and the outer periphery thereof is a tapered surface 34. A slit 19 is formed on the convex portions 32a and 32b in the same manner as in the first and second embodiments.

図１４に示すように、この凸部３２ａ，３２ｂがツールホルダ２の連結面２ａに含まれるＸ軸上に二個設けられる。もちろん、Ｙ軸上に設けてもよいし、直角に交差するＸＹ軸の双方にそれぞれ一個又は二個設けてもよい。   As shown in FIG. 14, two protrusions 32 a and 32 b are provided on the X axis included in the connection surface 2 a of the tool holder 2. Of course, it may be provided on the Y axis, or one or two may be provided on each of the XY axes intersecting at right angles.

また、図１５に示すように、凹部３３ａ，３３ｂは凸部３２ａ，３２ｂの形状に対応してすり鉢状の雌穴として形成され、その内周は上記凸部３２ａ，３２ｂのテーパ面３４に合致しうるテーパ面３５となっている。この雌穴が座面１ａ，１ｂ・・・１ｎに含まれる直角に交差するＸＹ軸上に、上記ツールホルダ２の連結面２ａ上の凸部３２ａ，３２ｂに対応するように形成される。雌穴に代えて実施の形態１、２と同様に溝を設けてもよい。   Further, as shown in FIG. 15, the concave portions 33a and 33b are formed as mortar-shaped female holes corresponding to the shapes of the convex portions 32a and 32b, and the inner periphery thereof is aligned with the tapered surface 34 of the convex portions 32a and 32b. The taper surface 35 can be formed. These female holes are formed on the XY axes intersecting at right angles included in the seating surfaces 1a, 1b... 1n so as to correspond to the convex portions 32a and 32b on the connecting surface 2a of the tool holder 2. Instead of the female hole, a groove may be provided as in the first and second embodiments.

このツールホルダ２のシャンク部３ａをターレット１の所望の座面１ａ，１ｂ・・・１ｎにおける挿入穴１４に挿入し、ツールホルダ２の連結面２ａをターレット１の所望の座面１ａ，１ｂ・・・１ｎに対向させ、連結面２ａ上から突出する凸部３２ａ，３２ｂを座面１ａ，１ｂ・・・１ｎの凹部３３ａ，３３ｂに挿入すると、図７（Ｂ）（Ｃ）に示したと同様に、凹凸部３３ａ，３３ｂ，３２ａ，３２ｂのテーパ面３５，３４同士が接触し、凸部３２ａ，３２ｂは凹部３３ａ，３３ｂ内で圧縮され、すべての凸部３２ａ，３２ｂが連結面２ａ及び対応する座面１ａ，１ｂ・・・１ｎに対してＺ軸方向に平行なｗ方向に直線的に弾性変形する。このため、凸部３２ａ，３２ｂの円錐形のテーパ面３４が凹部３３ａ，３３ｂのテーパ面３５に滑らかに接触し、連結面２ａが対応する座面１ａ，１ｂ・・・１ｎに対しＺ方向と直角方向に振れることなくＺ方向に平行に円滑に移動して所望の座面１ａ，１ｂ・・・１ｎに正確に密着する。従って、ツールホルダ２がターレット１に高精度で位置決めされる。   The shank portion 3a of the tool holder 2 is inserted into the insertion hole 14 in the desired seating surface 1a, 1b... 1n of the turret 1, and the connecting surface 2a of the tool holder 2 is inserted into the desired seating surface 1a, 1b,. .. When the convex portions 32a and 32b protruding from the connecting surface 2a are inserted into the concave portions 33a and 33b of the seating surfaces 1a, 1b... 1n, the same as shown in FIGS. In addition, the tapered surfaces 35 and 34 of the concave and convex portions 33a, 33b, 32a and 32b are in contact with each other, the convex portions 32a and 32b are compressed in the concave portions 33a and 33b, and all the convex portions 32a and 32b correspond to the connecting surface 2a. The bearing surfaces 1a, 1b,. For this reason, the conical tapered surface 34 of the convex portions 32a and 32b smoothly contacts the tapered surface 35 of the concave portions 33a and 33b, and the connecting surface 2a is in the Z direction with respect to the corresponding seating surfaces 1a, 1b. It moves smoothly in parallel to the Z direction without swinging in a right-angle direction and accurately contacts the desired seating surfaces 1a, 1b,. Therefore, the tool holder 2 is positioned on the turret 1 with high accuracy.

なお、この実施の形態３において図中実施の形態１、２の部分と同じ部分には同一符号を付して示し、重複した説明を省略することとする。   In the third embodiment, the same parts as those in the first and second embodiments are denoted by the same reference numerals, and redundant description is omitted.

＜実施の形態４＞
図１６及び図１７に示すように、この実施の形態４では、凸部１６ａ，１６ｂ，１６ｃ，１６ｄが四個設けられ、すべての凸部１６ａ，１６ｂ，１６ｃ，１６ｄが環状部材である連結部材２７にまとめられ一体化されている。 <Embodiment 4>
As shown in FIGS. 16 and 17, in the fourth embodiment, four convex portions 16a, 16b, 16c, and 16d are provided, and all the convex portions 16a, 16b, 16c, and 16d are annular members. 27 and integrated.

連結部材２７は、実施の形態２の場合と同様に、図１７に示すように、剛性のあるリングとして形成される。このリング上に実施の形態２における三個の凸部１６ａ，１６ｂ，１６ｃに加え更に一個の凸部１６ｄがリングと一体成形され、或いは接着等によりリングに固着される。   As in the case of the second embodiment, the connecting member 27 is formed as a rigid ring as shown in FIG. On this ring, in addition to the three convex portions 16a, 16b and 16c in the second embodiment, one convex portion 16d is integrally formed with the ring, or is fixed to the ring by bonding or the like.

図１６に示すように、この連結部材２７である環状部材はその中心をツールホルダ２のシャンク部３ａが貫通する程度の大きさ及び形状に形成され、シャンク部３ａを取り巻くようにツールホルダ２のハウジング３に形成された環状溝２８内に嵌め込まれ、ボルト２９によりハウジング３に固定される。図１７中、符号３０はこのボルト２９を通すために連結部材２７に形成された孔を示す。   As shown in FIG. 16, the annular member, which is the connecting member 27, is formed in a size and shape so that the shank portion 3a of the tool holder 2 passes through the center thereof, and the tool holder 2 is surrounded by the shank portion 3a. It is fitted into an annular groove 28 formed in the housing 3 and fixed to the housing 3 by a bolt 29. In FIG. 17, reference numeral 30 indicates a hole formed in the connecting member 27 for passing the bolt 29.

凸部１６ａ，１６ｂ，１６ｃ，１６ｄは、連結部材２７がツールホルダ２のハウジング３に固定されることにより、実施の形態２の場合と同じ位置及び姿勢でＺ軸と平行にツールホルダ２の連結面２ａから突出する。   The protrusions 16a, 16b, 16c, and 16d are connected to the tool holder 2 in parallel with the Z-axis at the same position and orientation as in the second embodiment by fixing the connecting member 27 to the housing 3 of the tool holder 2. Projects from the surface 2a.

また、図１６及び図１７に示すように、連結部材２７上の凸部１６ａ，１６ｂ，１６ｃ，１６ｄ間には必要に応じてセクター状のスペーサ３１が挿入され、上記ボルト２９により連結部材２７と共にツールホルダ２側に固定される。各スペーサ３１の端面は、凸部１６ａ，１６ｂ，１６ｃ，１６ｄのｖｗ軸に平行な両側面にすり割り１９の開口部を覆うように取り付けられる。これにより、各凸部１６ａ，１６ｂ，１６ｃは後述する凹部１５ａ，１５ｂ，１５ｃ，１５ｄ内に入って圧縮されると、ｗ方向すなわちＺ軸に平行に弾性変形する。   As shown in FIGS. 16 and 17, a sector-shaped spacer 31 is inserted between the convex portions 16 a, 16 b, 16 c, and 16 d on the connecting member 27 as necessary, and together with the connecting member 27 by the bolt 29. Fixed to the tool holder 2 side. The end face of each spacer 31 is attached so as to cover the opening of the slit 19 on both side faces parallel to the vw axis of the convex parts 16a, 16b, 16c, 16d. Thereby, when each convex part 16a, 16b, 16c enters into the below-mentioned concave part 15a, 15b, 15c, 15d and is compressed, it elastically deforms in the w direction, that is, parallel to the Z axis.

図１８に示すように、ターレット１の各座面１ａ、１ｂ・・・１ｎにも凹部１５ａ，１５ｂ，１５ｃ，１５ｄが四個設けられ、すべての凹部１５ａ，１５ｂ，１５ｃ，１５ｄが環状部材である連結部材３６に一体的に形成されている。   As shown in FIG. 18, four concave portions 15a, 15b, 15c, 15d are also provided in each seating surface 1a, 1b,... 1n of the turret 1, and all the concave portions 15a, 15b, 15c, 15d are annular members. The connecting member 36 is integrally formed.

連結部材３６は、上記ツールホルダ２側の連結部材２７と同様に剛性のある例えばリングとして形成される。このリングの片方の端面に凹部１５ａ，１５ｂ，１５ｃ，１５ｄが形成される。   The connecting member 36 is formed as a rigid ring, for example, like the connecting member 27 on the tool holder 2 side. Concave portions 15a, 15b, 15c and 15d are formed on one end face of the ring.

図１８に示すように、この連結部材３６はその中心をツールホルダ２のシャンク部３ａが貫通する程度の大きさ及び形状に形成され、シャンク部３ａを取り巻くようにターレット１の各座面１ａ、１ｂ・・・１ｎに形成された環状溝３９内に嵌め込まれ、ボルト３８によりターレット１に固定される。図１８中、符号３７はこのボルト３８を通すために連結部材３６に形成された孔を示す。   As shown in FIG. 18, the connecting member 36 is formed in such a size and shape that the shank portion 3a of the tool holder 2 passes through the center thereof, and each seating surface 1a of the turret 1 so as to surround the shank portion 3a, 1 b... 1 n are fitted into an annular groove 39 and fixed to the turret 1 by bolts 38. In FIG. 18, reference numeral 37 indicates a hole formed in the connecting member 36 for passing the bolt 38.

凹部１５ａ，１５ｂ，１５ｃ，１５ｄは、連結部材３６がターレット１に固定されることにより、実施の形態２の場合と同様に各座面１ａ、１ｂ・・・１ｎ下に陥没する。   The recesses 15a, 15b, 15c, and 15d are recessed below the respective seating surfaces 1a, 1b,... 1n, as in the case of the second embodiment, by fixing the connecting member 36 to the turret 1.

この実施の形態４では、図１６に示すように、ツールホルダ２の連結面２ａに含まれる交差軸であるＸＹ軸は実施の形態１，２のＸＹ軸とＺ軸回りに４５度だけ位相がずれている。図１８に示すように、ターレット１の座面１ａ、１ｂ・・・１ｎに含まれる交差軸であるＸＹ軸も同様に位相がずれている。これにより、ターレット１が垂直面内で旋回して、図１８に示す如く、ターレット１の所望の座面１ａが鉛直面となり、また、座面１ａに対応して図１６に示す如くツールホルダ２の連結面２ａも鉛直面になると、直角に交差するＸＹ軸は鉛直軸Ｐ又は水平軸Ｑに４５度の角度で交差することになる。   In the fourth embodiment, as shown in FIG. 16, the XY axis, which is an intersecting axis included in the connecting surface 2a of the tool holder 2, has a phase of 45 degrees around the XY axis and the Z axis of the first and second embodiments. It is off. As shown in FIG. 18, the phases of the XY axes, which are intersecting axes included in the seating surfaces 1a, 1b,. As a result, the turret 1 turns in the vertical plane, and the desired seating surface 1a of the turret 1 becomes a vertical surface as shown in FIG. 18, and the tool holder 2 corresponds to the seating surface 1a as shown in FIG. When the connecting surface 2a is also a vertical surface, the XY axes that intersect perpendicularly intersect the vertical axis P or the horizontal axis Q at an angle of 45 degrees.

このため、図１９に示すように、ツールホルダ２をターレット１の鉛直面となった座面１ａに水平方向に挿入して取り付ける際は、図１６に示すように、鉛直軸Ｐを挟むように配置される各凸部１６ｃ，１６ｄ及び各凹部１５ｃ，１５ｄにツールホルダ２の重量Ｗが割り振られることになるので、ツールホルダ２の取り付け精度が向上する。図１６中、符号Ｇ，Ｇは重量Ｗが二方向に割り振られることによりＸＹ軸方向に生じる力を示す。このような構成は、ことにツールホルダ２の重量Ｗが大きい場合に有利である。   For this reason, as shown in FIG. 19, when the tool holder 2 is inserted in the horizontal direction on the seat surface 1a which is the vertical surface of the turret 1 and attached, the vertical axis P is sandwiched as shown in FIG. Since the weight W of the tool holder 2 is allocated to each convex part 16c, 16d and each concave part 15c, 15d to be arranged, the mounting accuracy of the tool holder 2 is improved. In FIG. 16, symbols G and G indicate forces generated in the XY axis directions when the weight W is allocated in two directions. Such a configuration is advantageous particularly when the weight W of the tool holder 2 is large.

また、この実施の形態４では、ツールホルダ２をターレット１の座面１ａ、１ｂ・・・１ｎに固定するための固定用ボルト（図示せず）と、この固定用ボルトを通すための通し孔２５及びネジ孔２６が交差軸であるＸＹ軸上又はＸＹ軸の近傍に設けられる。これにより、凸部１６ａ，１６ｂ，１６ｃ，１６ｄは座面１ａ又は連結面２ａに対し、より正確に垂直方向に変形することになり、ターレット１の座面１ａ、１ｂ・・・１ｎに対するツールホルダ２の取り付け精度が更に向上する。   Further, in the fourth embodiment, a fixing bolt (not shown) for fixing the tool holder 2 to the seating surfaces 1a, 1b... 1n of the turret 1 and a through hole for passing the fixing bolt. 25 and the screw hole 26 are provided on or in the vicinity of the XY axis which is an intersecting axis. Accordingly, the convex portions 16a, 16b, 16c, and 16d are more accurately deformed in the vertical direction with respect to the seating surface 1a or the connecting surface 2a, and the tool holder for the seating surfaces 1a, 1b,. The mounting accuracy of 2 is further improved.

なお、この実施の形態４において図中実施の形態１，２の部分と同じ部分には同一符号を付して示し、重複した説明を省略することとする。   In the fourth embodiment, the same parts as those in the first and second embodiments are denoted by the same reference numerals, and redundant description is omitted.

＜実施の形態５＞
図２０に示すように、この実施の形態５では、ツールホルダ２の連結面２ａ上の交差軸であるＸＹ軸が６０度の交差角度で交差している。また、図示しないが、ターレット１の座面１ａ、１ｂ・・・１ｎ上の交差軸であるＸＹ軸も同じ角度で交差している。この場合はツールホルダ２の重量Ｗが割り振られることによるＸＹ軸方向に生じる力Ｒは実施の形態４における場合の力Ｇよりも多少大きくなる。 <Embodiment 5>
As shown in FIG. 20, in this fifth embodiment, the XY axes that are the intersecting axes on the connecting surface 2a of the tool holder 2 intersect at an intersecting angle of 60 degrees. Moreover, although not shown in figure, the XY axes that are the intersecting axes on the seating surfaces 1a, 1b... 1n of the turret 1 also intersect at the same angle. In this case, the force R generated in the XY-axis direction due to the weight W of the tool holder 2 being allocated is slightly larger than the force G in the fourth embodiment.

なお、この実施の形態５において図中実施の形態４の部分と同じ部分には同一符号を付して示し、重複した説明を省略することとする。   In the fifth embodiment, the same parts as those of the fourth embodiment in the figure are denoted by the same reference numerals, and redundant description will be omitted.

以上、本発明の望ましい実施の形態について説明したが、本発明は上記実施の形態１〜５に限定されるものではなく、本発明の趣旨を逸脱しない範囲内で種々変更可能である。例えば、上記実施の形態１〜５では凹部が刃物台の座面に設けられ、凸部がツールホルダの連結面に設けられるが、凹部をツールホルダの連結面に設け、凸部を刃物台の座面に設けることも可能である。凹部及び凸部をツールホルダの連結面に設け、凸部及び凹部を刃物台の座面に設けることも可能である。また、ツールホルダは刃物をドリル刃のように回転可能に保持するものとして示したが、バイト等のように固定して保持するツールホルダについても本発明を適用可能である。また、ＸＹ軸は、９０度、６０度に限らず他の所望の角度で交差するものであってもよく、ＸＹ軸の鉛直軸又は水平軸との交差角度も所望の角度であってよい。   As mentioned above, although desirable embodiment of this invention was described, this invention is not limited to the said Embodiment 1-5, A various change is possible within the range which does not deviate from the meaning of this invention. For example, in the first to fifth embodiments, the concave portion is provided on the seat surface of the tool post and the convex portion is provided on the connecting surface of the tool holder. However, the concave portion is provided on the connecting surface of the tool holder, and the convex portion is provided on the tool holder. It can also be provided on the seating surface. It is also possible to provide the concave portion and the convex portion on the connecting surface of the tool holder, and provide the convex portion and the concave portion on the seat surface of the tool post. Moreover, although the tool holder was shown as what hold | maintains a cutter so that rotation is possible like a drill blade, this invention is applicable also to the tool holder which fixes and hold | maintains like a cutting tool. The XY axes are not limited to 90 degrees and 60 degrees, and may intersect at other desired angles, and the intersecting angle of the XY axes with the vertical axis or the horizontal axis may also be a desired angle.

本発明の実施の形態１に係るツールホルダ位置決め装置をツールホルダの背面側から見た背面図である。It is the rear view which looked at the tool holder positioning device concerning Embodiment 1 of the present invention from the back side of a tool holder. 図１中、ＩＩ−ＩＩ線矢視断面図である。FIG. 2 is a cross-sectional view taken along line II-II in FIG. ツールホルダ位置決め装置をツールホルダの底側から見た底面図である。It is the bottom view which looked at the tool holder positioning device from the bottom side of the tool holder. ツールホルダ位置決め装置における凸部の斜視図である。It is a perspective view of the convex part in a tool holder positioning device. 凸部の正面図である。It is a front view of a convex part. 図５Ａ中、ＶＢ−ＶＢ線矢視断面図である。It is a VB-VB arrow directional cross-sectional view in FIG. 5A. 凸部の底面図である。It is a bottom view of a convex part. 図１に示すツールホルダを装着するターレットの部分切欠斜視図である。It is a partial notch perspective view of the turret which mounts | wears with the tool holder shown in FIG. ツールホルダをターレットに装着しようとする状態を示す部分切欠断面図である。It is a partial notch sectional view which shows the state which is going to mount | wear a turret with a tool holder. ツールホルダの凸部のテーパ面がターレットの凹部のテーパ面に接触した状態を示す部分切欠断面図である。It is a partial notch sectional view which shows the state which the taper surface of the convex part of the tool holder contacted the taper surface of the recessed part of a turret. ツールホルダの連結面がターレットの座面に密着し、ツールホルダの位置決めが完了した状態を示す部分切欠断面図である。FIG. 5 is a partially cutaway sectional view showing a state in which the connecting surface of the tool holder is in close contact with the seating surface of the turret and the positioning of the tool holder is completed. 図７Ｃ中、ＶＩＩＤ−ＶＩＩＤ線矢視断面図である。FIG. 7C is a cross-sectional view taken along the line VIID-VIID in FIG. 7C. 本発明の実施の形態２に係るツールホルダ位置決め装置をツールホルダの背後から見た背面図である。It is the rear view which looked at the tool holder positioning device concerning Embodiment 2 of the present invention from the back of a tool holder. 図８中、ＩＸ−ＩＸ線矢視断面図である。FIG. 9 is a cross-sectional view taken along line IX-IX in FIG. ツールホルダ位置決め装置をツールホルダの底面側から見た底面図である。It is the bottom view which looked at the tool holder positioning device from the bottom side of the tool holder. ツールホルダ位置決め装置における凸部をまとめた連結部材の斜視図である。It is a perspective view of the connection member which put together the convex part in a tool holder positioning device. 連結部材の分解斜視図である。It is a disassembled perspective view of a connection member. 本発明の実施の形態３に係るツールホルダ位置決め装置をツールホルダの背面側から見た背面図である。It is the rear view which looked at the tool holder positioning device concerning Embodiment 3 of the present invention from the back side of a tool holder. 図１２中、ＸＩＩＩ−ＸＩＩＩ線矢視断面図である。FIG. 13 is a cross-sectional view taken along line XIII-XIII in FIG. ツールホルダ位置決め装置をツールホルダの底面側から見た底面図である。It is the bottom view which looked at the tool holder positioning device from the bottom side of the tool holder. 図１２に示すツールホルダを装着するターレットの部分切欠斜視図である。It is a partial notch perspective view of the turret which mounts the tool holder shown in FIG. 本発明の実施の形態４に係るツールホルダ位置決め装置をツールホルダの底側から見た底面図である。It is the bottom view which looked at the tool holder positioning device concerning Embodiment 4 of the present invention from the bottom side of the tool holder. ツールホルダ位置決め装置における凸部をまとめた連結部材の斜視図である。It is a perspective view of the connection member which put together the convex part in a tool holder positioning device. ターレットの部分切欠斜視図である。It is a partial notch perspective view of a turret. ターレットの鉛直面である座面にツールホルダを取り付ける作業を示す説明図である。It is explanatory drawing which shows the operation | work which attaches a tool holder to the seat surface which is a vertical surface of a turret. 本発明の実施の形態５に係るツールホルダ位置決め装置をツールホルダの底側から見た底面図である。It is the bottom view which looked at the tool holder positioning device concerning Embodiment 5 of the present invention from the bottom side of the tool holder.

符号の説明Explanation of symbols

１…ターレット
２…ツールホルダ
２ａ…連結面
１ａ，１ｂ・・・１ｎ…座面
１６ａ，１６ｂ，１６ｃ，１６ｄ，３２ａ，３２ｂ…凸部
１５ａ，１５ｂ，１５ｃ，１５ｄ，３３ａ，３３ｂ…凹部
１９…すり割り
２３，２４，３４，３５…テーパ面
Ｘ，Ｙ…交差軸
２７，３６…連結部材 DESCRIPTION OF SYMBOLS 1 ... Turret 2 ... Tool holder 2a ... Connection surface 1a, 1b ... 1n ... Seat surface 16a, 16b, 16c, 16d, 32a, 32b ... Convex part 15a, 15b, 15c, 15d, 33a, 33b ... Concave part 19 ... Slot 23, 24, 34, 35 ... Tapered surface X, Y ... Cross axis 27, 36 ... Connecting member

Claims (10)

刃物台の座面に設けられた複数個の凸部又は複数個の凹部と、上記座面に合致可能なツールホルダの連結面に、上記複数個の凸部又は上記複数個の凹部と嵌合可能に形成された凹部又は凸部とを有し、上記座面と連結面とが密着する際に摺接するテーパ面が凹凸部にそれぞれ対称形に形成されたツールホルダ位置決め装置において、上記複数個の凸部又は複数個の凹部が、上記座面に含まれる交差軸上に少なくとも一つずつ設けられ、上記複数個の凸部又は上記複数個の凹部と嵌合可能な凹部又は凸部が、上記連結面に含まれる交差軸上に設けられ、上記凸部には、上記座面又は連結面に平行な複数個のすり割りが、凸部の置かれる上記軸の方向に互い違いに切り込まれることにより、各凸部が上記座面又は連結面に垂直な方向に弾性変形可能とされ、上記凹凸部のテーパ面は各凹凸部の置かれる上記軸に関し対称形になるように形成されたことを特徴とするツールホルダ位置決め装置。   The plurality of convex portions or the plurality of concave portions provided on the seat surface of the tool post and the connecting surface of the tool holder that can match the seat surface are fitted with the plurality of convex portions or the plurality of concave portions. In the tool holder positioning device having a recess or a protrusion formed so as to have a tapered surface that is slidably contacted when the seating surface and the connecting surface are in close contact with each other, the plurality of the above-mentioned At least one of the convex portions or the plurality of concave portions on the crossing axis included in the seating surface, and the concave portions or the convex portions that can be fitted to the plurality of convex portions or the plurality of concave portions, A plurality of slits parallel to the seating surface or the connecting surface are alternately cut in the direction of the axis on which the convex portion is placed. Therefore, each convex part can be elastically deformed in a direction perpendicular to the seating surface or the connecting surface. And is, the tapered surface of the uneven portion tool holder positioning device which is characterized in that is formed so as to be symmetrical relates to the aforementioned axis to be placed with each uneven portion. 請求項１に記載のツールホルダ位置決め装置において、凸部が略立方体又は略直方体に形成されたことを特徴とするツールホルダ位置決め装置。   The tool holder positioning device according to claim 1, wherein the convex portion is formed in a substantially cubic shape or a substantially rectangular parallelepiped shape. 請求項１に記載のツールホルダ位置決め装置において、凸部が円錐台形に形成されたことを特徴とするツールホルダ位置決め装置。   2. The tool holder positioning device according to claim 1, wherein the convex portion is formed in a truncated cone shape. 請求項１乃至請求項３のいずれかに記載のツールホルダ位置決め装置において、すべての凸部が連結部材で連結され一体化されたことを特徴とするツールホルダ位置決め装置。   The tool holder positioning device according to any one of claims 1 to 3, wherein all convex portions are connected and integrated by a connecting member. 請求項１乃至請求項４のいずれかに記載のツールホルダ位置決め装置において、凹部が各軸に沿って伸びる溝であることを特徴とするツールホルダ位置決め装置。   5. The tool holder positioning device according to claim 1, wherein the concave portion is a groove extending along each axis. 請求項１乃至請求項４のいずれかに記載のツールホルダ位置決め装置において、凹部が凸部と嵌合する雌穴であることを特徴とするツールホルダ位置決め装置。   The tool holder positioning device according to any one of claims 1 to 4, wherein the concave portion is a female hole that fits into the convex portion. 請求項１に記載のツールホルダ位置決め装置において、交差軸が直交二軸であることを特徴とするツールホルダ位置決め装置。   The tool holder positioning device according to claim 1, wherein the intersecting axes are two orthogonal axes. 請求項１に記載のツールホルダ位置決め装置において、交差軸が座面又は連結面に含まれる鉛直軸又は水平軸に交差することを特徴とするツールホルダ位置決め装置。   2. The tool holder positioning device according to claim 1, wherein the intersecting axis intersects a vertical axis or a horizontal axis included in the seating surface or the coupling surface. 請求項１に記載のツールホルダ位置決め装置において、ツールホルダを刃物台の座面に固定する固定用ボルトが交差軸上又は交差軸の近傍に設けられたことを特徴とするツールホルダ位置決め装置。   2. The tool holder positioning apparatus according to claim 1, wherein a fixing bolt for fixing the tool holder to the seat surface of the tool rest is provided on or near the cross axis. 請求項１に記載のツールホルダ位置決め装置において、すべての凸部又は凹部が環状部材に形成され、ツールホルダを取り巻くように座面又は連結面にそれぞれ形成された環状溝に各環状部材が嵌め込まれ固定されたことを特徴とするツールホルダ位置決め装置。   2. The tool holder positioning device according to claim 1, wherein all convex portions or concave portions are formed in the annular member, and each annular member is fitted in an annular groove formed in the seating surface or the connecting surface so as to surround the tool holder. A tool holder positioning device characterized by being fixed.
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