JP6955740B2 - Tool holder - Google Patents
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- JP6955740B2 JP6955740B2 JP2016151601A JP2016151601A JP6955740B2 JP 6955740 B2 JP6955740 B2 JP 6955740B2 JP 2016151601 A JP2016151601 A JP 2016151601A JP 2016151601 A JP2016151601 A JP 2016151601A JP 6955740 B2 JP6955740 B2 JP 6955740B2
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Description
本発明は「工具保持具」に関するものであり、より詳しくは、収納保持する工具との密着性が高すぎることなく容易に工具の着脱が可能で、軽量で耐クーラント性が高く、且つ難削材の切粉等による損傷を受け難い自動工具交換装置の工具マガジンに設けられる工具保持具に関する。 The present invention relates to a "tool holder", and more specifically, the tool can be easily attached and detached without being too close to the tool to be stored and held, and is lightweight, has high coolant resistance, and is difficult to cut. The present invention relates to a tool holder provided in a tool magazine of an automatic tool changer that is not easily damaged by chips of materials.
様々な加工を実施できる工作機械（例えばマシニングセンタ）が幅広い分野で使用されている。工作機械はその内部に自動工具交換装置を備え、この交換装置は構成部品として、工具を保持するための工具保持具を備えている。工作機械で使用される工具は、通常この工具保持具に収納保持されており、工具が加工に使用される際に、工具保持具から工具が引き抜かれ、加工場所に移送される。 Machine tools (for example, machining centers) capable of performing various machining are used in a wide range of fields. The machine tool is equipped with an automatic tool changer inside, and this changer is provided with a tool holder for holding a tool as a component. A tool used in a machine tool is usually stored and held in this tool holder, and when the tool is used for machining, the tool is pulled out from the tool holder and transferred to a machining place.
図６は、従来の工具保持具（１０１）を示す図である。工具保持具（１０１）は工具を収納保持するための凹部（１０２）を備えており、工具のシャンク（１１）（図３参照）と凹部（１０２）が密着し、さらに、凹部の奥側に設置された球体（１０３）が工具のプルスタッドボルト（１２）（図３参照）を保持することによって、工具を収納保持している。 FIG. 6 is a diagram showing a conventional tool holder (101). The tool holder (101) is provided with a recess (102) for storing and holding the tool, and the shank (11) (see FIG. 3) of the tool and the recess (102) are in close contact with each other, and further, on the back side of the recess. The installed sphere (103) stores and holds the tool by holding the pull stud bolt (12) (see FIG. 3) of the tool.
工具保持具は凹部と鋼球によって収納保持されるが、収納保持された工具のシャンクと凹部の密着性が高すぎるために、収納保持した工具が抜け難くなり、工具を引き抜く際に大きな力が必要となるため、工具や工具保持具、さらには工作機械の故障に繋がる虞があった。 The tool holder is stored and held by the recess and the steel ball, but the contact between the shank and the recess of the stored and held tool is too high, making it difficult for the stored and held tool to come off, and a large force is applied when pulling out the tool. Since it is necessary, there is a risk that it may lead to a failure of the tool, the tool holder, and the machine tool.
現在、工具保持具はフェノール樹脂製のものが大部分を占めており（例えば、特許文献１参照）、まれに鋳物（鋳鉄）製のものが使用されている。
フェノール樹脂は鋳鉄と比較して軽量であり、自己潤滑性を有し、摺動性、耐水性、耐久性等が優れており、工具保持具の素材として優れた特性を多数有している。
Currently, most of the tool holders are made of phenol resin (see, for example, Patent Document 1), and rarely cast iron is used.
Phenol resin is lighter than cast iron, has self-lubricating properties, is excellent in slidability, water resistance, durability, etc., and has many excellent properties as a material for tool holders.
フェノール樹脂は工具保持具の素材として優れた特性を多数有しているが、耐クーラント性（クーラント液（水溶性切削油）に対する工具保持具の腐食耐性）が低いという欠点も有する。
現在、工作機械で加工するワークの材質は多様化しており、加工の際に使用されるクーラント液の種類やその使用頻度も増加している。加工に使用した工具にはクーラント液が付着しており、この工具を工具保持具に収納保持する際に、クーラント液が工具保持具にも付着するため、耐クーラント性の高い工具保持具が求められている。
耐クーラント性の低いフェノール樹脂は、クーラント液が付着することで劣化が生じ、工具保持具の寸法精度が低下することで、工具を収納保持できなくなる虞がある。
Phenol formaldehyde has many excellent properties as a material for tool holders, but also has a drawback of low coolant resistance (corrosion resistance of tool holders to coolant liquid (water-soluble cutting oil)).
Currently, the materials of workpieces processed by machine tools are diversifying, and the types of coolant used in processing and the frequency of use thereof are also increasing. Coolant liquid adheres to the tool used for machining, and when the tool is stored and held in the tool holder, the coolant liquid also adheres to the tool holder, so a tool holder with high coolant resistance is required. Has been done.
Phenol resin having low coolant resistance may deteriorate due to the adhesion of the coolant liquid, and the dimensional accuracy of the tool holder may decrease, so that the tool cannot be stored and held.
さらに、フェノール樹脂は衝撃強度が低いという欠点も有する。
衝撃強度が低いため、工具保持具に十分な強度を持たせるために、全体の肉厚を厚くする必要があり、フェノール樹脂自体の比重は小さいにも関わらず、重量を十分に下げることができなかった。
特許文献２には、重量の問題を解決するために、熱可塑性樹脂にガラス繊維を含有させた材料で成形した工具保持具が開示されている。特許文献２によると、フェノール樹脂製の工具保持具よりも軽量の工具保持具を提供できる旨が記載されている。しかし、特許文献２に開示されている工具保持具は、熱可塑性樹脂を主材料としているため、耐クーラント性は高くなく、フェノール樹脂製の工具保持具と同様に、クーラント液が付着することで劣化が生じ、工具保持具の寸法精度が低下することで、工具を収納保持できなくなる虞がある。
Further, the phenol resin has a drawback of low impact strength.
Since the impact strength is low, it is necessary to increase the overall wall thickness in order to give the tool holder sufficient strength, and even though the specific gravity of the phenol resin itself is small, the weight can be sufficiently reduced. There wasn't.
また、近年、食品加工、自動車、航空、発電等の幅広い分野において、チタン、タングステン及び耐熱合金等の難削材の加工品の需要が高まっている。
これらの難削材を工作機械で加工するには、通常の材料よりもツールをより高速で回転させて難削材を削る必要があり、且つよりクーラント性の高い溶液を用いる必要がある。しかし、高速回転で難削材を削ることにより、難削材の切粉が広く飛散し、飛散した切粉が工具保持具に接触することで、工具保持具を損傷させる虞がある。又、クーラント性の高い液による工具保持具の強度への影響も考えられる。特に、フェノール樹脂製の工具保持具は強度が低いため、切粉による損傷を受けやすく傷みやすいため、製品寿命が短くなるという問題点があった。
従来、飛散した難削材の切粉による工具保持具の損傷を防ぐため、プレート等の防壁材を設置して、切粉と工具保持具の接触を防止していた。しかし、この方法では、工具保持具に加えて防壁材が必要となるため、部品点数が増加し、これによりコストが増加し、重量も増加してしまうという問題点があった。
In recent years, there has been an increasing demand for processed products of difficult-to-cut materials such as titanium, tungsten and heat-resistant alloys in a wide range of fields such as food processing, automobiles, aviation, and power generation.
In order to process these difficult-to-cut materials with a machine tool, it is necessary to rotate the tool at a higher speed than ordinary materials to cut the difficult-to-cut materials, and it is necessary to use a solution having a higher coolant property. However, when the difficult-to-cut material is scraped by high-speed rotation, the chips of the difficult-to-cut material are widely scattered, and the scattered chips come into contact with the tool holder, which may damage the tool holder. In addition, it is possible that the liquid having a high coolant property affects the strength of the tool holder. In particular, since the tool holder made of phenol resin has low strength, it is easily damaged by chips and is easily damaged, so that there is a problem that the product life is shortened.
Conventionally, in order to prevent damage to the tool holder due to scattered hard-to-cut material chips, a wall material such as a plate has been installed to prevent the chips from coming into contact with the tool holder. However, this method requires a wall-proof material in addition to the tool holder, which increases the number of parts, which causes a problem that the cost increases and the weight also increases.
本発明は、上記したような従来技術の問題点を解決すべくなされたものであって、収納保持する工具との密着性が高すぎることなく工具の着脱が容易であり、軽量で耐クーラント性が高く、且つ難削材の切粉等による損傷を受け難い自動工具交換装置の工具マガジンに設けられる工具保持具を提供することを目的とする。 The present invention has been made to solve the above-mentioned problems of the prior art, and the tool can be easily attached and detached without being too tightly adhered to the tool to be stored and held, and is lightweight and has coolant resistance. It is an object of the present invention to provide a tool holder provided in a tool magazine of an automatic tool changer, which has a high value and is not easily damaged by chips of difficult-to-cut materials.
請求項１に係る発明は、自動工具交換装置の工具マガジンに設けられる、工具を着脱自在に保持する工具保持具であって、該工具保持具は、略円筒形状を呈した円筒状部材を備え、該円筒状部材の内面に、該円筒状部材の開口から奥側に向かって、部分円錐状の凹部がその中途部まで形成され、前記円筒状部材の奥側には付勢手段によって前記円筒状部材の軸心方向に付勢された球体が設けられ、前記円筒状部材の内面に形成された前記部分円錐状の凹部表面に複数の陥凹部が形成されてなる工具保持具に関する。 The invention according to claim 1 is a tool holder provided in a tool magazine of an automatic tool changer for detachably holding a tool, and the tool holder includes a cylindrical member having a substantially cylindrical shape. On the inner surface of the cylindrical member, a partial conical recess is formed from the opening of the cylindrical member toward the back side to the middle part thereof, and the cylinder is formed on the back side of the cylindrical member by urging means. The present invention relates to a tool holder in which a sphere urged in the axial direction of the shaped member is provided, and a plurality of recesses are formed on the surface of the partially conical recess formed on the inner surface of the cylindrical member.
請求項２に係る発明は、前記工具保持具がアルミダイキャスト製であることを特徴とする、請求項１に記載の工具保持具に関する。
The invention according to
請求項３に係る発明は、前記付勢手段がコイルばねであることを特徴とする、請求項１又は２に記載の工具保持具に関する。
The invention according to
請求項１に係る発明によれば、工具保持具の円筒状部材の内面に形成された部分円錐状の凹部表面に複数の陥凹部が形成されていることにより、工具を収納保持した際に、工具のシャンクと工具保持具の部分円錐状の凹部表面との間に間隙が生じ、工具と工具保持具の過剰な密着を防ぐことができ、工具の着脱が容易になる。 According to the first aspect of the present invention, when a tool is stored and held, a plurality of recesses are formed on the surface of a partially conical recess formed on the inner surface of the cylindrical member of the tool holder. A gap is created between the shank of the tool and the surface of the partial conical recess of the tool holder, which prevents excessive adhesion between the tool and the tool holder and facilitates attachment / detachment of the tool.
請求項２に係る発明によれば、工具保持具がアルミダイキャスト製であるため、軽量で耐クーラント性が高く、且つ難削材の切粉等による損傷を受け難い工具保持具を提供できる。
さらに、難削材の切粉等による損傷を防止するための防壁材が不要となるため、部品点数とコストの削減及び軽量化が可能となる。
According to the second aspect of the present invention, since the tool holder is made of die-cast aluminum, it is possible to provide a tool holder that is lightweight, has high coolant resistance, and is not easily damaged by chips of a difficult-to-cut material.
Further, since a wall material for preventing damage due to chips of a difficult-to-cut material is not required, the number of parts and cost can be reduced and the weight can be reduced.
請求項３に係る発明によれば、付勢手段がコイルばねであるため、球体を工具保持具の凹部の軸心方向に強く付勢することができ、より確実に工具のプルスタッドボルトを保持することができる。
According to the invention of
以下、本発明に係る工具保持具の好適な実施形態について、図面を参照しながら説明する。
図１は本発明に係る工具保持具の概略斜視図、図２は本発明に係る工具保持具の概略断面図である。図３は本発明に係る工具保持具に収納保持される工具の概略側面図、図４は本発明に係る工具保持具に工具を収納保持した際の様子を示す概略断面図である。
Hereinafter, preferred embodiments of the tool holder according to the present invention will be described with reference to the drawings.
FIG. 1 is a schematic perspective view of the tool holder according to the present invention, and FIG. 2 is a schematic cross-sectional view of the tool holder according to the present invention. FIG. 3 is a schematic side view of a tool stored and held in the tool holder according to the present invention, and FIG. 4 is a schematic cross-sectional view showing a state when the tool is stored and held in the tool holder according to the present invention.
図３に示す工具（１４）は、本発明に係る工具保持具に収納保持される工具の１例を示している。本発明に係る工具保持具に収納保持される工具のシャンク（１１）は、世界的に主に使用されているＢＴ規格のものを用いている。ＢＴ規格のシャンク（１１）は、プルスタッドボルト（１２）を備えており、このプルスタッドボルト（１２）が工具保持具の球体によって保持される。
尚、本明細書では主にＢＴ規格の工具を収納保持する工具保持具について記載するが、ＨＳＫ−Ａ、ＣＡＰＴＯ、ＣＡＴ、ＤＩＮ等、その他の規格のシャンク用の工具保持具に本発明の特徴（つまり、工具のシャンクと密着する箇所に陥凹部を設ける、アルミダイキャストで工具保持具を製造する等）を組み込むことで、本発明に係る工具保持具と同様の効果を得ることができる。
The tool (14) shown in FIG. 3 shows an example of a tool stored and held in the tool holder according to the present invention. As the shank (11) of the tool stored and held in the tool holder according to the present invention, a BT standard that is mainly used worldwide is used. The BT standard shank (11) includes a pull stud bolt (12), which is held by the sphere of the tool holder.
Although the present specification mainly describes the tool holder for storing and holding the BT standard tool, the tool holder for shanks of other standards such as HSK-A, CAPTO, CAT, and DIN is a feature of the present invention. (That is, a recess is provided at a position in close contact with the shank of the tool, a tool holder is manufactured by aluminum die casting, etc.), the same effect as that of the tool holder according to the present invention can be obtained.
本発明に係る工具保持具（１）は、ガイド支点（２）と、ガイドホイール（３）と、保持部品（４）と、略円筒形状を呈した円筒状部材（５）とを備えている（図１参照）。
尚、ガイド支点（２）、ガイドホイール（３）及び保持部品（４）はあくまでも一例として図示したものに過ぎず、工具保持具の部品として通常使用されているものであればいかなるものでも使用することができる。
The tool holder (1) according to the present invention includes a guide fulcrum (2), a guide wheel (3), a holding part (4), and a cylindrical member (5) having a substantially cylindrical shape. (See FIG. 1).
The guide fulcrum (2), guide wheel (3), and holding part (4) are merely shown as examples, and any parts normally used as tool holder parts can be used. be able to.
円筒状部材（５）は、開口（６）から奥側に向かって、部分円錐状の凹部（７）がその中途部まで形成されている（図２参照）。
円筒状部材（５）の奥側には付勢手段（８）によって円筒状部材（５）の軸心方向に付勢された球体（９）が設けられている。
さらに、円筒状部材（５）の内面に形成された部分円錐状の凹部（７）の表面には複数の陥凹部（１０）が形成されている。
In the cylindrical member (5), a partially conical recess (7) is formed from the opening (6) toward the back side up to the middle portion thereof (see FIG. 2).
A sphere (9) urged in the axial direction of the cylindrical member (5) by the urging means (8) is provided on the back side of the cylindrical member (5).
Further, a plurality of recesses (10) are formed on the surface of the partially conical recess (7) formed on the inner surface of the cylindrical member (5).
部分円錐状の凹部（７）は、円筒状部材（５）の開口（６）から、円筒状部材（５）の中途部にかけて、徐々にその径が小さくなるように形成されている（図２参照）。
部分円錐状の凹部（７）の形状や寸法は、収納保持する工具（１４）のシャンク（１１）と部分円錐状の凹部（７）が十分に密着するようなものが望ましい（図４参照）。より具体的には、部分円錐状の凹部（７）の径は工具（１４）のシャンク（１１）の基準径に対して±０．０２ｍｍであることが望ましい。このことにより、工具（１４）の軸方向の位置精度が向上し、工具交換が確実に行われる。
尚、収納保持する工具（１４）のシャンク（１１）の形状に合わせて、部分円錐状の凹部（７）の形状を適宜変更してもよい。
収納保持される工具（１４）のシャンク（１１）と部分円錐状の凹部（７）が十分に密着することにより、工具（１４）の脱落を防ぐことができる。
The partially conical recess (7) is formed so that its diameter gradually decreases from the opening (6) of the cylindrical member (5) to the middle portion of the cylindrical member (5) (FIG. 2). reference).
The shape and dimensions of the partially conical recess (7) are preferably such that the shank (11) of the tool (14) to be stored and held and the partially conical recess (7) are sufficiently in close contact with each other (see FIG. 4). .. More specifically, it is desirable that the diameter of the partially conical recess (7) is ± 0.02 mm with respect to the reference diameter of the shank (11) of the tool (14). As a result, the positional accuracy of the tool (14) in the axial direction is improved, and the tool can be replaced reliably.
The shape of the partially conical recess (7) may be appropriately changed according to the shape of the shank (11) of the tool (14) to be stored and held.
When the shank (11) of the tool (14) to be stored and held and the partially conical recess (7) are sufficiently in close contact with each other, the tool (14) can be prevented from falling off.
部分円錐状の凹部（７）の表面には複数の陥凹部（１０）が形成されている（図２及び図５参照）。
陥凹部（１０）を設けることにより、工具保持具（１）に工具（１４）を収納保持する際、工具保持具（１）と工具（１４）のシャンク（１１）との間に間隙（１３）が生じる。これにより工具保持具（１）と収納保持される工具（１４）の密着性を減少させることができ、間隙（１３）が無い場合と比較して、工具（１４）を容易に着脱することができる。
陥凹部（１０）を設けることにより、比較的小さな力で工具（１４）を工具保持具（１）から引き抜くことができ、工具（１４）や工具保持具（１）、さらには工作機械の故障を防ぐことができる。
A plurality of recesses (10) are formed on the surface of the partially conical recess (7) (see FIGS. 2 and 5).
By providing the recess (10), when the tool (14) is stored and held in the tool holder (1), a gap (13) is provided between the tool holder (1) and the shank (11) of the tool (14). ) Occurs. As a result, the adhesion between the tool holder (1) and the tool (14) stored and held can be reduced, and the tool (14) can be easily attached and detached as compared with the case where there is no gap (13). can.
By providing the recess (10), the tool (14) can be pulled out from the tool holder (1) with a relatively small force, and the tool (14), the tool holder (1), and the machine tool are damaged. Can be prevented.
陥凹部（１０）の形状は、密着性を十分に減少させるために、図２及び図５に示すような同心円状が好ましいが、工具（１４）を工具保持具（１）に収納保持した際に、工具（１４）と工具保持具（１）の密着性を減少させることができる間隙（１３）を形成できる形状であればよく、例えば、同心円上の一部にだけ溝を形成してもよく、円筒状部材（５）の開口（６）から奥側に向かって直線状に伸びるような形状であってもよい。
陥凹部（１０）の数は、図２に示すように等間隔に並べた３つとしてもよく、工具（１４）を工具保持具（１）に収納保持した際に、工具（１４）と工具保持具（１）の密着性を減少させることができる間隙（１３）を形成できればよい。そのため、陥凹部（１０）の数は限定されず、１つ、２つ、３つ、４つあるいはそれ以上の数を設けてもよい。
また、陥凹部（１０）以外の円筒状部材（５）の表面粗さを小さくし、表面を滑らかにすることで、工具（１４）を工具保持具（１）に収納保持した際に、陥凹部（１０）以外の工具（１）と工具保持具（１４）の接触面では高い密着性を維持することができる。これにより、比較的小さな力で工具（１４）を工具保持具（１）から引き抜くことができ、且つ工具保持具（１）に収納保持している工具（１４）の工具保持具（１）からの落下を確実に防止することができる。
The shape of the recess (10) is preferably concentric as shown in FIGS. 2 and 5, in order to sufficiently reduce the adhesion, but when the tool (14) is stored and held in the tool holder (1). The shape may be such that a gap (13) that can reduce the adhesion between the tool (14) and the tool holder (1) can be formed. For example, a groove may be formed only in a part on a concentric circle. Often, the shape may be such that it extends linearly from the opening (6) of the cylindrical member (5) toward the back side.
The number of recesses (10) may be three that are arranged at equal intervals as shown in FIG. 2, and when the tool (14) is stored and held in the tool holder (1), the tool (14) and the tool It suffices if a gap (13) that can reduce the adhesion of the holder (1) can be formed. Therefore, the number of recesses (10) is not limited, and one, two, three, four, or more may be provided.
Further, by reducing the surface roughness of the cylindrical member (5) other than the recess (10) and smoothing the surface, the tool (14) is recessed when stored and held in the tool holder (1). High adhesion can be maintained on the contact surface between the tool (1) other than the recess (10) and the tool holder (14). As a result, the tool (14) can be pulled out from the tool holder (1) with a relatively small force, and from the tool holder (1) of the tool (14) stored and held in the tool holder (1). Can be reliably prevented from falling.
付勢手段（８）は、球体（９）を凹部（７）の軸心方向に付勢するために、円筒状部材（５）の奥側に設けられた外周側への穴に設置されている（図２参照）。
付勢手段（８）は圧縮コイルばねが好ましいが、皿ばねや竹の子ばね等、球体（９）を凹部（７）の軸心方向に付勢できるもので、当業者に自明のものであればいかなるものでもよい。
The urging means (8) is installed in a hole on the inner side of the cylindrical member (5) on the outer peripheral side in order to urge the sphere (9) in the axial direction of the recess (7). (See Fig. 2).
The urging means (8) is preferably a compression coil spring, but if the sphere (9) can be urged in the axial direction of the recess (7), such as a disc spring or a bamboo spring, and is obvious to those skilled in the art. It can be anything.
球体（９）は、付勢手段（８）の先端部に固定されており、図４に示すように収納保持される工具（１４）のプルスタッドボルト（１２）を保持し、工具（１４）の脱落を防止する。
球体（９）は、鋼球であることが望ましいが、これに限定されず、鉄球等のその他の金属球、あるいは樹脂製の球でもよく、工具（１４）のプルスタッドボルト（１２）を保持できるものであればよい。
The sphere (9) is fixed to the tip of the urging means (8), holds the pull stud bolt (12) of the tool (14) to be stored and held as shown in FIG. 4, and holds the tool (14). Prevents the dropout.
The sphere (9) is preferably a steel sphere, but is not limited to this, and may be another metal sphere such as an iron sphere or a resin sphere, and the pull stud bolt (12) of the tool (14) may be used. Anything that can be held will do.
本明細書では、工具（１４）のプルスタッドボルト（１２）の保持手段として、付勢手段（８）及び球体（９）を用いているが、工具の保持手段として通常使用されているものであればいかなるものでもよい。
また、より強固に工具（１４）のプルスタッドボルト（１２）を保持するために、付勢手段（８）及び球体（９）の数を２つや４つにする等、必要に応じて増やしてもよい。
In the present specification, the urging means (8) and the sphere (9) are used as the holding means for the pull stud bolt (12) of the tool (14), but those usually used as the holding means for the tool. Anything can be used as long as it is available.
Further, in order to hold the pull stud bolt (12) of the tool (14) more firmly, the number of the urging means (8) and the sphere (9) may be increased to two or four as necessary. May be good.
図４は、工具（１４）を、本発明に係る工具保持具に収納保持した際の様子を示す概略断面図である。
前述の通り、工具（１４）は、プルスタッドボルト（１２）が球体（９）によって保持され、シャンク（１１）と部分円錐状の凹部（７）が密着することによって、工具保持具（１）に収納保持される。
図４に示すように、本発明に係る工具保持具（１）は、部分円錐状の凹部（７）に形成された陥凹部（１０）によってシャンク（１１）と部分円錐状の凹部（７）に間隙（１３）を形成することができる。この間隙（１３）によって工具（１４）と工具保持具（１）の密着性を減少させることができ、間隙（１３）の無い場合と比較して、工具の着脱が容易となる。
FIG. 4 is a schematic cross-sectional view showing a state when the tool (14) is stored and held in the tool holder according to the present invention.
As described above, in the tool (14), the pull stud bolt (12) is held by the sphere (9), and the shank (11) and the partially conical recess (7) are brought into close contact with each other to form the tool holder (1). It is stored and held in.
As shown in FIG. 4, the tool holder (1) according to the present invention has a shank (11) and a partial conical recess (7) due to a recess (10) formed in the partial conical recess (7). A gap (13) can be formed in. The gap (13) can reduce the adhesion between the tool (14) and the tool holder (1), and the tool can be easily attached and detached as compared with the case where there is no gap (13).
本発明に係る工具保持具（１）は、耐クーラント性や強度が高く、比重が小さいという点から、アルミニウムダイキャスト（アルミダイキャストともいう）製であることが望ましい。具体的には、Ａ３８０（ＦＡ ＣＨＩＡ ＭＥＴＡＬ ＥＮＴＥＲＰＲＩＳＥ ＣＯ．，ＬＴＤ．）を使用して製造することが望ましいが、これに限定されず、ＪＩＳ Ｈ ５３０２：２００６に規定されているＡＤＣ１、ＡＤＣ３、ＡＤＣ５、ＡＤＣ６、ＡＤＣ１０、ＡＤＣ１０Ｚ、ＡＤＣ１２、ＡＤＣ１２Ｚ、ＡＤＣ１４等のアルミダイキャストを使用して製造してもよい。
尚、工具保持具に収納保持される工具の取り外しを容易にするという目的のみを達成する場合には、上記したアルミダイキャスト以外の、鋳鉄やフェノール樹脂等、工具保持具の材料として通常使用されるものを用いて工具保持具を製造してもよい。
また、アルミダイキャスト、鋳鉄、フェノール樹脂等、工具保持具の材料として通常使用されるものを複数組み合わせて工具保持具を製造してもよい。
The tool holder (1) according to the present invention is preferably made of aluminum die-cast (also referred to as aluminum die-cast) from the viewpoint of high coolant resistance, high strength, and low specific gravity. Specifically, it is desirable to manufacture using A380 (FA CHIA METAL ENTERPRISE CO., LTD.), But the present invention is not limited to this, and ADC1, ADC3, ADC5, defined in JIS H5302: 2006, It may be manufactured by using aluminum die casting of ADC6, ADC10, ADC10Z, ADC12, ADC12Z, ADC14 and the like.
If only the purpose of facilitating the removal of the tool stored and held in the tool holder is achieved, it is usually used as a material for the tool holder such as cast iron or phenol resin other than the above-mentioned aluminum die casting. Tool holders may be manufactured using materials.
Further, the tool holder may be manufactured by combining a plurality of materials usually used as a material for the tool holder, such as aluminum die-cast, cast iron, and phenol resin.
本発明に係る工具保持具は、自動工具交換装置の工具マガジンに設けられる工具保持具として好適に使用される。 The tool holder according to the present invention is suitably used as a tool holder provided in a tool magazine of an automatic tool changer.
１ 工具保持具
２ ガイド支点
３ ガイドホイール
４ 保持部品
５ 円筒状部材
６ 開口
７ 部分円錐状の凹部
８ 付勢手段
９ 球体
１０ 陥凹部
１１ シャンク
１２ プルスタッドボルト
１３ 間隙
１４ 工具
１０１ 従来の工具保持具
１０２ 従来の工具保持具の凹部
１０３ 従来の工具保持具の球体
1
Claims (3)
該工具保持具は、
略円筒形状を呈した円筒状部材を備え、
該円筒状部材の開口から奥側に向かって、開口部の径が徐々に小さくなるように形成された円錐台状の凹部と、円筒状の凹部が連続して設けられ、
前記円錐台状の凹部の内径は工具のシャンクの基準径に対して±０．０２ｍｍであり、
前記円筒状の凹部の奥側には付勢手段によって前記円筒状部材の軸心方向に付勢された球体が設けられ、
前記円錐台状の凹部の表面に、工具のシャンクの側面と密着する複数の密着部と複数の陥凹部が交互に形成されて、
なる工具保持具。 A tool holder provided in the tool magazine of an automatic tool changer that holds tools in a detachable manner.
The tool holder is
Equipped with a cylindrical member having a substantially cylindrical shape,
From the opening of the cylindrical member toward the back side, a truncated cone-shaped recess formed so that the diameter of the opening gradually decreases and a cylindrical recess are continuously provided.
The inner diameter of the truncated cone-shaped recess is ± 0.02 mm with respect to the reference diameter of the shank of the tool.
A sphere urged in the axial direction of the cylindrical member by urging means is provided on the back side of the cylindrical recess.
On the surface of the truncated cone-shaped recess , a plurality of contact portions and a plurality of recesses that are in close contact with the side surface of the shank of the tool are alternately formed.
Tool holder.
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| JP7180648B2 (en) * | 2020-09-07 | 2022-11-30 | 株式会社椿本チエイン | holding pot |
| CN111993100A (en) * | 2020-09-14 | 2020-11-27 | 湖州拓锐机械有限公司 | Clamping device is used in processing of compressor cylinder that stability is strong |
| JP2024005915A (en) * | 2022-06-30 | 2024-01-17 | ブラザー工業株式会社 | Tool gripping parts, tool magazines, machine tools |
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| JPS5988237A (en) * | 1982-11-04 | 1984-05-22 | Enshu Ltd | Spindle non-braking tool changer |
| JPS6411745A (en) * | 1987-07-06 | 1989-01-17 | Brother Ind Ltd | Tool exchanger |
| JPH11170132A (en) * | 1997-12-08 | 1999-06-29 | Mori Seiki Co Ltd | Movable auxiliary equipment for machine tools |
| DE60041930D1 (en) * | 2000-04-10 | 2009-05-14 | Pascal Eng Corp | MOUNTING STRUCTURE FOR TOOL HOLDER |
| JP2001300828A (en) * | 2000-04-20 | 2001-10-30 | Canon Inc | Tool holder |
| JP2006038192A (en) * | 2004-07-30 | 2006-02-09 | Kuraray Plast Co Ltd | Hose joint |
| JP2008267549A (en) * | 2007-04-24 | 2008-11-06 | Onda Seisakusho Seki Kojo:Kk | In-core manufacturing method |
| DE102009048343B4 (en) * | 2009-10-07 | 2014-02-20 | Deckel Maho Seebach Gmbh | Tool chain magazine |
| JP2014071096A (en) * | 2012-10-02 | 2014-04-21 | Nok Corp | Oil level gauge |
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