JP4827630B2 - Tool holding member - Google Patents

Tool holding member Download PDF

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JP4827630B2
JP4827630B2 JP2006172127A JP2006172127A JP4827630B2 JP 4827630 B2 JP4827630 B2 JP 4827630B2 JP 2006172127 A JP2006172127 A JP 2006172127A JP 2006172127 A JP2006172127 A JP 2006172127A JP 4827630 B2 JP4827630 B2 JP 4827630B2
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tool
holding member
tool holding
glass fiber
product
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JP2008000842A (en
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恭弘 小谷
英 石井
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Senqcia Corp
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Description

本発明は、工具保持部材に関するものである。   The present invention relates to a tool holding member.

マシニングセンタのように、3次元形状を加工する工作機械においては、ドリル等の加工のための先端工具が多くの種類のものを必要とする場合がある。
従って、このような工作機械は工具を保持する工具マガジンを具備していることが多い。
In a machine tool that processes a three-dimensional shape, such as a machining center, a tip tool for processing such as a drill may require many types.
Therefore, such a machine tool is often provided with a tool magazine for holding a tool.

工具マガジンの構造は多様であるが、チェーンとスプロケットを具備する構造が多い。
このような構造では、チェーンに複数の保持金具が設けられており、保持金具に工具を保持する工具保持部材が着脱可能に設けられている。
Although the structure of the tool magazine is various, there are many structures having a chain and a sprocket.
In such a structure, the chain is provided with a plurality of holding metal fittings, and a tool holding member for holding the tool is detachably provided on the holding metal fittings.

工作機械側が制御装置等を用いて、工具マガジン側に対して、特定の工具を送るように要求すると、工具マガジン側はスプロケットを回転駆動させて必要な工具を工具保持部材ごと所定の位置まで移動させる。   When the machine tool side requests to send a specific tool to the tool magazine side using a control device etc., the tool magazine side rotates the sprocket to move the necessary tools together with the tool holding member to a predetermined position. Let

そして、アーム等が工具保持部材を保持金具から抜き出し、最後に保持金具から工具を抜き出して工作機械側に搬送する。   Then, the arm or the like pulls out the tool holding member from the holding fitting, and finally removes the tool from the holding fitting and transports it to the machine tool side.

ここで、工具保持部材の材質は、かつては鋼材が用いられていたが、軽量化のために、近年では熱硬化性樹脂を用いることが多い。
この場合、圧縮成形により形成する方法もあるが、この場合コストや時間がかかる上に、強度が不十分であるため、射出成形によって成形することが多い。
Here, steel is used as the material of the tool holding member, but in recent years, a thermosetting resin is often used for weight reduction.
In this case, there is a method of forming by compression molding. In this case, however, cost and time are required, and the strength is insufficient.

この場合、強度や寸法安定性の向上を図ってガラス繊維を含有させているものがあり、以下のようなものが知られている(特許文献1)。
なお、ガラス繊維の含有率は、体積分率で、例えば45〜55%程度である。
特開2001-347434号公報
In this case, some glass fibers are included to improve strength and dimensional stability, and the following is known (Patent Document 1).
In addition, the content rate of glass fiber is a volume fraction, for example, is about 45 to 55%.
JP 2001-347434 A

しかしながら、このような工具保持部材では、ガラス繊維が表面に露出するため、工具保持部材を保持金具から抜き出す際にガラス繊維が保持金具を摩耗させてしまうという問題があった。   However, in such a tool holding member, since the glass fiber is exposed on the surface, there is a problem that the glass fiber wears the holding metal when the tool holding member is extracted from the holding metal.

さらに、その際にガラス繊維が保持金具から脱落することにより、保持金具自身も摩耗してしまうという問題があった。   Furthermore, when the glass fiber is dropped from the holding fitting at that time, there is a problem that the holding fitting itself is worn.

本発明は、このような問題に鑑みてなされたもので、その目的は摺動時に相手材を磨耗させず、自己も耐摩耗性に優れた工具マガジン用の保持金具を提供することにある。   The present invention has been made in view of such problems, and an object of the present invention is to provide a holding tool for a tool magazine that does not wear a mating member during sliding and that is also excellent in wear resistance.

前述した目的を達成するために、本発明は、工作機械用の工具マガジンに着脱可能に設けられ、工具を着脱可能に保持する工具保持部材であって、体積分率で、ガラス繊維を25〜35%、無機質充填材を30〜40%含有する熱硬化性樹脂からなり、前記無機質充填材はガラス粉末であることを特徴とする工具保持部材である。
In order to achieve the above-described object, the present invention is a tool holding member that is detachably provided in a tool magazine for a machine tool and holds the tool in a detachable manner. 35% Ri Do a thermosetting resin containing an inorganic filler 30-40%, the inorganic filler is a tool holding member which is a glass powder.

前記熱硬化性樹脂はフェノール樹脂である
前記工具保持部材は、曲げ強さが130MPa以上であり、射出成形により製造される。
The thermosetting resin is a phenol resin .
The tool holding member has a bending strength of 130 MPa or more and is manufactured by injection molding.

本発明によれば、摺動時に相手材を磨耗させず、自己も耐摩耗性に優れた工具マガジン用の保持金具を提供することができる。   According to the present invention, it is possible to provide a holding tool for a tool magazine that does not wear a mating member during sliding and that is also excellent in wear resistance.

以下、図面に基づいて本発明に好適な実施形態を詳細に説明する。
図1は、本実施形態に係る工具保持部材1が設けられた工具マガジン3を示す平面図であって、図2は図1の工具保持部材1付近の側面図、図3は図2のA方向矢視図である。
DESCRIPTION OF EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described in detail based on the drawings.
FIG. 1 is a plan view showing a tool magazine 3 provided with a tool holding member 1 according to this embodiment, FIG. 2 is a side view of the vicinity of the tool holding member 1 of FIG. 1, and FIG. FIG.

図1に示すように、工具マガジン3は外枠9の内部に複数の連結されたチェーン5を有している。なお、外枠9の一部は開口しており、搬入口11が設けられている。   As shown in FIG. 1, the tool magazine 3 has a plurality of connected chains 5 inside an outer frame 9. In addition, a part of the outer frame 9 is opened and a carry-in port 11 is provided.

チェーン5に接触するようにスプロケット10a、10b、10cが回転可能に設けられ、スプロケット10a、10b、10cに設けられた図示しない歯車とチェーン5とが噛み合っている。   Sprockets 10a, 10b, and 10c are rotatably provided so as to come into contact with the chain 5, and gears (not shown) provided on the sprockets 10a, 10b, and 10c are engaged with the chain 5.

図1および図2に示すように、チェーン5の側面には平面形状がコの字状の保持金具7が設けられている。   As shown in FIGS. 1 and 2, a holding metal fitting 7 having a U-shaped planar shape is provided on the side surface of the chain 5.

保持金具7のコの字の内部には工具保持部材1が着脱可能に保持されている。
工具保持部材1は、角柱状の形状を有しており、軸方向に工具挿入孔13が設けられている。
The tool holding member 1 is detachably held inside the U-shape of the holding metal fitting 7.
The tool holding member 1 has a prismatic shape, and a tool insertion hole 13 is provided in the axial direction.

図3に示すように、工具保持部材1の対向する側面には、溝部15a、15bが設けられており、保持金具7を溝部15a、15bに挿入することによって工具保持部材1は保持金具7に保持されている。   As shown in FIG. 3, groove portions 15 a and 15 b are provided on opposite side surfaces of the tool holding member 1, and the tool holding member 1 is attached to the holding fitting 7 by inserting the holding fitting 7 into the groove portions 15 a and 15 b. Is retained.

チェーン5およびスプロケット10a、10b、10cは、工具保持部材を移動させるための部材であり、スプロケットが回転することにより、チェーン5が移動する。   The chain 5 and the sprockets 10a, 10b, and 10c are members for moving the tool holding member, and the chain 5 moves as the sprocket rotates.

保持金具7は工具保持部材1を保持する部材であり、材質は鋼材等である。
工具保持部材1は、工具を保持する部材であり、工具挿入口13には図示しない工具を挿入可能である。
工具挿入口13には、チャック等が設けられ、チャックにより工具が保持される。
The holding metal fitting 7 is a member that holds the tool holding member 1 and is made of steel or the like.
The tool holding member 1 is a member that holds a tool, and a tool (not shown) can be inserted into the tool insertion port 13.
The tool insertion port 13 is provided with a chuck or the like, and the tool is held by the chuck.

ここで、工具マガジン1の動作について簡単に説明する。
図示しない工作機械等から、工具マガジン1内の特定の工具を送るように指示があると、スプロケット10a、10b、10cは図1のB1、B2、B3方向に回転し、チェーン5をB5方向に移動させる。
Here, the operation of the tool magazine 1 will be briefly described.
When a machine tool or the like (not shown) instructs to send a specific tool in the tool magazine 1, the sprockets 10a, 10b, and 10c rotate in the directions B1, B2, and B3 in FIG. 1, and the chain 5 moves in the direction B5. Move.

そして、特定の工具が挿入された工具保持部材1が搬入口11まで移動すると、スプロケット10a、10b、10cの回転は停止する。   Then, when the tool holding member 1 into which the specific tool is inserted moves to the carry-in port 11, the rotation of the sprockets 10a, 10b, and 10c is stopped.

そして、図示しないアーム等が、特定の工具が挿入された工具保持部材1を図2のC1方向、もしくはC2方向に移動させ、保持金具7から抜き出す。   Then, an arm or the like (not shown) moves the tool holding member 1 in which a specific tool is inserted in the direction C1 or C2 in FIG.

最後に、図示しないアーム等が図示しない工具を工具保持部材1の工具挿入口13から引き抜き、工作機械へ搬入する。   Finally, an arm (not shown) pulls out a tool (not shown) from the tool insertion port 13 of the tool holding member 1 and carries it into the machine tool.

ここで、工具保持部材1を保持金具7から抜き出す際には工具保持部材1の溝部17a、溝部17bと保持金具7が摺動する。
従って、工具保持部材1の材質は耐摩耗性に優れ、かつ摺動の際の相手材である、保持金具7を摩耗させない材質である必要がある。
Here, when the tool holding member 1 is extracted from the holding fixture 7, the groove 17 a and the groove 17 b of the tool holding member 1 and the holding fixture 7 slide.
Therefore, the material of the tool holding member 1 is required to be a material that is excellent in wear resistance and that does not wear the holding fitting 7, which is a counterpart material during sliding.

次に、工具保持部材1の材質及び製法について詳細に説明する。
工具保持部材1を構成する材料の一つは熱硬化性樹脂であり、例えばフェノール樹脂が用いられる。
Next, the material and manufacturing method of the tool holding member 1 will be described in detail.
One of the materials constituting the tool holding member 1 is a thermosetting resin, and for example, a phenol resin is used.

これを射出成形装置を用い金型等に射出し、加熱することによって所望の形状に形成する。
射出成形を行うことにより、短時間で所望の形状を得るとことができ、また圧縮成形等の手段と比べて寸法精度が良好であるため、後加工も不要となる。
This is injected into a mold or the like using an injection molding apparatus and heated to form a desired shape.
By performing injection molding, a desired shape can be obtained in a short time, and since dimensional accuracy is better than means such as compression molding, post-processing is also unnecessary.

また、工具保持部材1にはガラス繊維が含有されている。ガラス繊維を含有させることによる効果は2つある。   The tool holding member 1 contains glass fiber. There are two effects by including glass fiber.

第1は曲げ強さを上昇させる効果である。
フェノール樹脂単体では曲げ強さが70〜100MPa程度であるが、工具保持部材として要求される曲げ強さは130MPa以上であるため、補強材が必要となる。
The first is the effect of increasing the bending strength.
A single phenol resin has a bending strength of about 70 to 100 MPa. However, since the bending strength required as a tool holding member is 130 MPa or more, a reinforcing material is required.

そこで、フェノール樹脂よりも曲げ強さに優れたガラス繊維を含有させ、いわゆる繊維強化を行うことにより、曲げ強さを130MPa以上にすることができる。
なお、ガラス繊維の繊維長は100μm程度である。
Therefore, the bending strength can be increased to 130 MPa or more by adding glass fiber having a bending strength superior to that of phenol resin and performing so-called fiber reinforcement.
The fiber length of the glass fiber is about 100 μm.

第2は、成形安定性を高める効果である。
熱硬化性樹脂は硬化時に収縮するが、フェノール樹脂単体では収縮率が1%を超えており、成形安定性が悪いので、フェノール樹脂よりも収縮率が小さい材料を加えて収縮率を下げる必要がある。
The second effect is to increase molding stability.
Thermosetting resin shrinks when cured, but the phenolic resin alone has a shrinkage ratio of over 1%, and the molding stability is poor. Therefore, it is necessary to add a material with a smaller shrinkage ratio than phenolic resin to lower the shrinkage ratio. is there.

ガラスは、フェノール樹脂の硬化温度である120℃前後では、フェノール樹脂と比してほとんど膨張、収縮しないので、ガラス繊維を加えることにより、収縮率を下げ、成形安定性を高めることができる。   Since the glass hardly expands and contracts at around 120 ° C., which is the curing temperature of the phenol resin, by adding glass fibers, the shrinkage rate can be lowered and the molding stability can be increased.

しかしながら、ガラス繊維には、先に述べたように、摺動時に、相手材である保持金具7を摩耗させてしまうと同時にガラス繊維が脱落して工具保持部材1が摩耗する原因となるため、含有率を抑えることが望ましい。   However, as described above, the glass fiber wears the holding fitting 7 which is the counterpart material during sliding, and at the same time, the glass fiber falls off and causes the tool holding member 1 to wear. It is desirable to suppress the content rate.

一方で、ガラス繊維の含有率を抑えると、曲げ強さと、成形安定性が低下してしまうという問題がある。   On the other hand, when the glass fiber content is suppressed, there is a problem that bending strength and molding stability are lowered.

これらの問題に対し、本出願人は鋭意検討の結果、ガラス繊維の含有率を従来より下げ、その分、無機質充填材の含有率を上昇させることにより、曲げ強さの低下を最低限に抑え、かつ成形安定性(収縮率)を従来と同程度に維持できることを発見した。   As a result of diligent study, the applicant has reduced the glass fiber content from the conventional level and increased the inorganic filler content accordingly, thereby minimizing the decrease in bending strength. And, it was discovered that the molding stability (shrinkage rate) can be maintained at the same level as before.

無機質充填材とは、収縮率がフェノール樹脂よりも小さい無機物質の紛体であり、例えばガラス粉末である。   An inorganic filler is a powder of an inorganic substance whose shrinkage rate is smaller than that of a phenol resin, for example, glass powder.

無機質充填材そのものは、従来の工具保持部材にも含有されていたが、体積分率で5〜10%程度であり、工具保持部材の曲げ強さや成形安定性を左右する程度のものではなかった。   The inorganic filler itself was also contained in the conventional tool holding member, but the volume fraction was about 5 to 10%, and it did not affect the bending strength and molding stability of the tool holding member. .

しかし、無機質充填材には曲げ強さを上昇させる効果はあまり期待できないが、成形安定性を高める効果は、ガラス粉末を用いた場合、ガラス繊維と略同等である。
従って、無機質充填材の含有率を上昇させても成形安定性はほとんど変化しない。
However, the effect of increasing the bending strength cannot be expected so much in the inorganic filler, but the effect of improving the molding stability is substantially the same as that of glass fiber when glass powder is used.
Accordingly, the molding stability hardly changes even when the content of the inorganic filler is increased.

ここで、曲げ強さの低下を最低限に抑え、かつ成形安定性(収縮率)を従来と同程度に維持できるガラス繊維と無機質充填材の含有率は、ガラス繊維が体積分率で25〜35%、無機質充填材が30〜40%の場合である。   Here, the content ratio of the glass fiber and the inorganic filler that can suppress the decrease in the bending strength to the minimum and maintain the molding stability (shrinkage rate) to the same level as before is 25 to 25%. This is the case when 35% and the inorganic filler is 30 to 40%.

かかる割合にすることにより、工具保持部材1の曲げ強さは130MPa以上に維持することができ、かつ成形安定性は、従来と略同等に保つことができる。   By setting such a ratio, the bending strength of the tool holding member 1 can be maintained at 130 MPa or more, and the molding stability can be maintained substantially equal to that of the conventional one.

なお、ガラス繊維の含有率をこれ以上増加させると、ガラス繊維が、摺動時に、相手材である保持金具7を摩耗させてしまうと同時に、脱落して工具保持部材1が摩耗する原因となるので、好ましくない。   If the glass fiber content is further increased, the glass fiber wears the holding metal fitting 7 that is the counterpart material when sliding, and at the same time, the glass fiber falls off and causes the tool holding member 1 to wear. Therefore, it is not preferable.

また、ガラス繊維の含有率をこれ以上低下させると、工具保持部材1の曲げ強さが低下し、130MPa以下になる恐れがあるので、好ましくない、   Further, if the glass fiber content is further reduced, the bending strength of the tool holding member 1 is lowered, and there is a possibility that the pressure becomes 130 MPa or less.

一方、無機質充填材の含有率をこれ以上増加させると、工具保持部材1の曲げ強さや硬度が上昇し、摺動時に、相手材である保持金具7を摩耗させる原因となるので好ましくない。   On the other hand, if the content of the inorganic filler is further increased, the bending strength and hardness of the tool holding member 1 are increased, and this causes the holding metal member 7 as a counterpart material to wear during sliding, which is not preferable.

また、無機質充填材の含有率をこれ以上低下させると、フェノール樹脂の含有率が増加し、工具保持部材1の成形安定性が悪化するので好ましくない。
従って、ガラス繊維と無機質充填材の含有率は、ガラス繊維が体積分率で25〜35%、無機質充填材が30〜40%にする必要がある。
Further, if the content of the inorganic filler is further reduced, the content of the phenol resin is increased, and the molding stability of the tool holding member 1 is deteriorated.
Therefore, it is necessary that the glass fiber and the inorganic filler are contained in a volume fraction of 25 to 35% and that of the inorganic filler is 30 to 40%.

このように、本実施の形態によれば、工具保持部材1は、ガラス繊維および無機質充填材を含有するフェノール樹脂を射出成形して成形され、ガラス繊維の含有率が体積分率で25〜35%、無機質充填材の含有率が30〜40%である。   Thus, according to this Embodiment, the tool holding member 1 is shape | molded by injection-molding the phenol resin containing glass fiber and an inorganic filler, and the content rate of glass fiber is 25-35 by a volume fraction. %, The content of the inorganic filler is 30 to 40%.

従って、工具保持部材1は、摺動時に相手材を磨耗させず、自己も耐摩耗性に優れている。   Therefore, the tool holding member 1 does not wear the mating member when it slides, and itself has excellent wear resistance.

次に、本実施形態に係る工具保持部材1を構成する材料を用いて摩耗試験を行った結果について説明する。
図4は摩耗試験に用いた材料の組成および物性を示す表である。
Next, the result of performing a wear test using the material constituting the tool holding member 1 according to the present embodiment will be described.
FIG. 4 is a table showing the composition and physical properties of the materials used in the wear test.

まず、各組成について簡単に補足説明する。
組成は、いずれの材料も残余は同材質のフェノール樹脂である。
First, a brief supplementary explanation of each composition will be given.
As for the composition, all the materials are the same phenol resin.

また、組成のうち、ガラス粉末Bとガラス粉末Cは曲げ強度が互いに異なり、ガラス粉末Bの方が曲げ強度が大きい。
パルプ質充填材とは、布材のことである。
Of the compositions, glass powder B and glass powder C have different bending strengths, and glass powder B has a higher bending strength.
Pulp filler is a cloth material.

次に、作成したサンプルとその組成、物性について比較説明する。
「現行品」とあるのは、従来の工具保持部材を構成する組成のサンプルであり、ガラス繊維を体積分率で45〜55%と、他のサンプルよりも多く含有しているのが特徴である。
Next, the prepared sample and its composition and physical properties will be described in comparison.
“Current product” is a sample of a composition that constitutes a conventional tool holding member, and is characterized by containing a glass fiber in a volume fraction of 45 to 55% more than other samples. is there.

現行品の特性を見るに、曲げ強さ、曲げ弾性率、圧縮強さ、ロックウェル硬度、シャルピー衝撃強さのいずれも他のサンプルより高い値を示し、成形収縮率も最も低い。
即ち、ガラス繊維を含有させることにより、曲げ強さを強化し、かつ成形安定性が良好になっていることが分かる。
Looking at the characteristics of the current product, bending strength, flexural modulus, compression strength, Rockwell hardness, Charpy impact strength are all higher than other samples, and molding shrinkage is the lowest.
That is, it can be seen that by containing glass fiber, the bending strength is enhanced and the molding stability is improved.

一方、「現行品(圧縮成形)」とあるのは、圧縮成形により成形したサンプルである。なお、他のサンプルは全て射出成形である。
現行品(圧縮成形)の物性を見ると、ガラス繊維は含有されておらず、パルプ質充填材および木粉が含有されている。
On the other hand, the “current product (compression molding)” is a sample molded by compression molding. All other samples are injection molded.
Looking at the physical properties of the current product (compression molding), glass fiber is not contained, but pulp-like filler and wood flour are contained.

現行品(圧縮成形)の特性を見ると、曲げ強さ、曲げ弾性率が他のサンプルと比べて半分以下であり、成形収縮率が最も悪い。従って、ガラス繊維を含有させず、かつ、射出成形で形成しないと特性が悪いことが分かる。   Looking at the characteristics of the current product (compression molding), the bending strength and flexural modulus are less than half that of other samples, and the molding shrinkage is the worst. Therefore, it can be seen that the properties are poor unless glass fibers are contained and formed by injection molding.

次に、「本発明品」とあるのは、本実施形態に係る工具保持部材1を構成する材料を用いたサンプルであり、即ち、組成を見ると、ガラス繊維が25〜35%、無機質充填材が30〜40%含有されている。   Next, “the product of the present invention” is a sample using the material constituting the tool holding member 1 according to the present embodiment, that is, when the composition is viewed, the glass fiber is 25 to 35% and the inorganic filling is performed. 30-40% of material is contained.

本発明品の特性を見ると、曲げ強さ、曲げ弾性率、圧縮強さ、シャルピー衝撃強さは、現行品より低いものの、他のサンプルよりは良好であり、また、成形収縮率も現行品より大きいものの、他のサンプルよりは良好である。   Looking at the characteristics of the product of the present invention, the bending strength, flexural modulus, compressive strength and Charpy impact strength are lower than the current product, but better than other samples, and the molding shrinkage is also the current product. Although larger, it is better than the other samples.

比較品1および比較品2は、ガラス繊維の含有量を本発明品以下にしたサンプルであり、比較品1はテフロン(登録商標)系滑材を、比較品2はカーボン系滑材を含有している。   Comparative product 1 and comparative product 2 are samples in which the content of the glass fiber is not more than that of the present invention. Comparative product 1 contains a Teflon (registered trademark) -based lubricant and comparative product 2 contains a carbon-based lubricant. ing.

比較品1の特性を見ると、曲げ強さ、曲げ弾性率、ロックウェル硬度、シャルピー衝撃強さが本発明品より低く、ガラス繊維の含有量が少ないと強度が低下することが分かる。   Looking at the properties of Comparative Product 1, it can be seen that the bending strength, flexural modulus, Rockwell hardness and Charpy impact strength are lower than those of the present invention, and that the strength decreases when the glass fiber content is low.

比較品2の特性を見ると、曲げ弾性率は本発明品よりも高いものの、曲げ強度、圧縮強さ、ロックウェル硬度、シャルピー衝撃強さが本発明品より低く、ガラス繊維の含有量が少ないと強度が低下することが分かる。   Looking at the properties of Comparative Product 2, the flexural modulus is higher than that of the present product, but the bending strength, compressive strength, Rockwell hardness and Charpy impact strength are lower than those of the present product, and the glass fiber content is low. It can be seen that the strength decreases.

比較品3は、比較品2において、カーボン系滑材の含有率を下げ、ガラス繊維の含有率を上げたものである。   The comparative product 3 is the comparative product 2 in which the content of the carbon-based lubricant is lowered and the content of the glass fiber is increased.

比較品3の特性を見ると、曲げ強さ、曲げ弾性率、圧縮強さは本発明品と同等であるが、シャルピー衝撃強さが本発明品より低く、ガラス繊維の含有量が少ないと強度が低下することが分かる。   Looking at the characteristics of Comparative Product 3, the bending strength, flexural modulus, and compressive strength are the same as those of the present invention, but the Charpy impact strength is lower than that of the present product and the strength is reduced when the glass fiber content is small. It turns out that falls.

比較品4は、比較品2において、ガラス繊維の含有率を上げたものである。
比較品4の特性を見ると、曲げ弾性率は本発明品より高いものの、曲げ強度、圧縮強さ、シャルピー衝撃強さが本発明品より低く、ガラス繊維の含有量が少ないと強度が低下することが分かる。
The comparative product 4 is obtained by increasing the glass fiber content in the comparative product 2.
Looking at the characteristics of the comparative product 4, although the flexural modulus is higher than that of the present product, the bending strength, compressive strength, and Charpy impact strength are lower than those of the present product, and the strength decreases when the glass fiber content is small. I understand that.

次に、各サンプルの成形品と金属片との摺動による摩耗試験を行った結果について説明する。
図5は摩耗試験の結果を示す図である。
なお、サンプル1、サンプル2とあるのは、2つのサンプルで試験を行ったことを示す。
Next, the results of a wear test by sliding between the molded product of each sample and the metal piece will be described.
FIG. 5 shows the results of the wear test.
Samples 1 and 2 indicate that the test was performed with two samples.

図5に示すように、本発明品の摩耗量は、成形品、金属片共に、現行品の摩耗量を大きく下回り、耐摩耗性に優れていることが分かった。   As shown in FIG. 5, it was found that the wear amount of the product of the present invention was much lower than the wear amount of the current product for both the molded product and the metal piece, and was excellent in wear resistance.

同様に、比較品1〜5も摩耗量は、成形品、金属片共に、現行品の摩耗量を下回った。   Similarly, the wear amount of Comparative products 1 to 5 was lower than the wear amount of the current product for both the molded product and the metal piece.

次に、これらのサンプルのうち、現行品、現行品(圧縮成形)および成形品の摩耗量が他のサンプルより小さかった、本発明品、比較品2、比較品5について、図2に示すような実際の工具保持部材1の形状に成形し、水平方向に保持金具7への抜き差しを繰り返すことによる摩耗試験を行い、工具保持部材1の摩耗深さを測定した。
図6〜図12は、摩耗試験の結果を示すグラフである。
Next, among these samples, the present product, the comparative product 2 and the comparative product 5 in which the wear amount of the current product, the current product (compression molding) and the molded product was smaller than those of the other samples are shown in FIG. A wear test was performed by forming the actual tool holding member 1 into a shape and repeatedly inserting and removing the holding fixture 7 in the horizontal direction, and the wear depth of the tool holding member 1 was measured.
6 to 12 are graphs showing the results of the wear test.

なお、試験条件について補足すると、保持金具の材質は一般構造用圧延鋼材(SS400相当品)であり、表面に亜鉛メッキを施した後に、クロメート処理と呼ばれる化成処理を施したものである。   In addition, to supplement the test conditions, the material of the holding metal fitting is a general structural rolled steel (SS400 equivalent), and after the surface is galvanized, it is subjected to chemical conversion treatment called chromate treatment.

また、保持金具7への抜き差しは50回/分の速度で行い、これを20万回繰り返した。
さらに、工具保持部材1に工具が挿入された状況を想定し、工具保持部材1に対し、鉛直方向に8kgの荷重をかけた状態で試験を行った。以上の結果を図6〜図12に示す。
Moreover, the insertion / extraction to the holding | maintenance metal fitting 7 was performed at the speed of 50 times / min, and this was repeated 200,000 times.
Further, assuming that a tool was inserted into the tool holding member 1, a test was performed with a load of 8 kg applied to the tool holding member 1 in the vertical direction. The above results are shown in FIGS.

ここで、図6〜10は、各サンプルごとの実測値を表示したグラフであり、図11は図6から図10のデータを全て表示したグラフである。また図12は各サンプルごとの平均値を表示したグラフである。   Here, FIGS. 6 to 10 are graphs that display actual measurement values for each sample, and FIG. 11 is a graph that displays all the data of FIGS. 6 to 10. FIG. 12 is a graph displaying the average value for each sample.

なお、摩耗深さは図2に示す溝部11a、11bの端部である原点部31を原点にして表示している。
また、サンプル1、サンプル2とあるのは、2つのサンプルで試験を行ったことを示す。
Note that the wear depth is displayed with the origin 31 as the end of the grooves 11a and 11b shown in FIG.
Samples 1 and 2 indicate that two samples were tested.

図6〜12に示すように、本発明品は最も摩耗深さが小さく、摩耗量(グラフの面積で表される部分)も小さかった。
一方で現行品、現行品(圧縮成形)は摩耗深さ、摩耗量が本発明品の2〜3倍であった。
As shown in FIGS. 6 to 12, the product of the present invention had the smallest wear depth and the wear amount (portion represented by the area of the graph) was also small.
On the other hand, the current product and the current product (compression molding) had a wear depth and a wear amount 2 to 3 times that of the present product.

比較品1の摩耗深さは本発明品と現行品(圧縮成形)の中間程度であった。
比較品5については、摩耗量は本発明品と同程度であるが、最大摩耗深さが本発明品よりも大きかった。
The wear depth of the comparative product 1 was about the middle between the product of the present invention and the current product (compression molding).
For the comparative product 5, the amount of wear was similar to that of the product of the present invention, but the maximum wear depth was larger than that of the product of the present invention.

以上より、本発明品が、最も優れた耐摩耗性を有していることが分かった。   From the above, it was found that the product of the present invention has the most excellent wear resistance.

以上、添付図面を参照しながら、本発明の実施形態を説明したが、本発明の技術的範囲は、前述した実施の形態に左右されない。当業者であれば、特許請求の範囲に記載された技術的思想の範疇内において各種の変更例または修正例に想到し得ることは明らかであり、それらについても当然に本発明の技術的範囲に属するものと了解される。   As mentioned above, although embodiment of this invention was described referring an accompanying drawing, the technical scope of this invention is not influenced by embodiment mentioned above. It is obvious for those skilled in the art that various modifications or modifications can be conceived within the scope of the technical idea described in the claims, and these are naturally within the technical scope of the present invention. It is understood that it belongs.

工具保持部材1が設けられた工具マガジン3を示す平面図The top view which shows the tool magazine 3 in which the tool holding member 1 was provided 図1の工具保持部材1付近の側面図Side view of the vicinity of the tool holding member 1 in FIG. 図2のA方向矢視図A direction arrow view of FIG. 摩耗試験に用いた材料の組成および物性を示す表Table showing the composition and physical properties of the materials used in the wear test 摩耗試験の模式図Schematic diagram of wear test 摩耗試験の結果を示すグラフGraph showing the results of the wear test 摩耗試験の結果を示すグラフGraph showing the results of the wear test 摩耗試験の結果を示すグラフGraph showing the results of the wear test 摩耗試験の結果を示すグラフGraph showing the results of the wear test 摩耗試験の結果を示すグラフGraph showing the results of the wear test 摩耗試験の結果を示すグラフGraph showing the results of the wear test 摩耗試験の結果を示すグラフGraph showing the results of the wear test

符号の説明Explanation of symbols

1…………工具保持部材
3…………工具マガジン
5…………チェーン
7…………保持金具
9…………外枠
10………スプロケット
11………搬入口
13………工具挿入口
15a……溝部
1 ………… Tool holding member 3 ………… Tool magazine 5 ………… Chain 7 ………… Holding bracket 9 ………… Outer frame 10 ……… Sprocket 11 ……… Inlet 13 ……… Tool insertion slot 15a ...... Groove

Claims (4)

工作機械用の工具マガジンに着脱可能に設けられ、工具を着脱可能に保持する工具保持部材であって、
体積分率で、ガラス繊維を25〜35%、無機質充填材を30〜40%含有する熱硬化性樹脂からなり、
前記無機質充填材はガラス粉末であることを特徴とする工具保持部材。
A tool holding member that is detachably provided in a tool magazine for a machine tool and holds the tool detachably,
Volume fraction, the glass fiber 25% to 35%, Ri Do a thermosetting resin containing an inorganic filler 30-40%,
The tool holding member, wherein the inorganic filler is glass powder .
前記熱硬化性樹脂はフェノール樹脂であることを特徴とする請求項1記載の工具保持部材。   The tool holding member according to claim 1, wherein the thermosetting resin is a phenol resin. 曲げ強さが130MPa以上であることを特徴とする請求項1記載の工具保持部材。   The tool holding member according to claim 1, wherein the bending strength is 130 MPa or more. 射出成形により製造されることを特徴とする請求項1記載の工具保持部材。
The tool holding member according to claim 1, wherein the tool holding member is manufactured by injection molding.
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