JPH08174370A - Balancing structure of rotary shaft - Google Patents
Balancing structure of rotary shaftInfo
- Publication number
- JPH08174370A JPH08174370A JP31618094A JP31618094A JPH08174370A JP H08174370 A JPH08174370 A JP H08174370A JP 31618094 A JP31618094 A JP 31618094A JP 31618094 A JP31618094 A JP 31618094A JP H08174370 A JPH08174370 A JP H08174370A
- Authority
- JP
- Japan
- Prior art keywords
- weight
- spindle
- screw hole
- balance
- hole
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Landscapes
- Constituent Portions Of Griding Lathes, Driving, Sensing And Control (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、回転シャフトのバラン
ス取り構造に関し、工作機械の主軸のバランス取りに適
用して好適である。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rotary shaft balancing structure, which is suitable for balancing the spindles of machine tools.
【０００２】[0002]
【従来の技術】マシニングセンタ等の工作機械には、切
削や穴明け加工を行なうフライスやドリルを回転駆動す
るための主軸が備えられている。図４には主軸の支持状
況を示してある。図４に示すように、主軸頭１にはスラ
スト軸受２及びラジアル軸受３を介して主軸４が回転自
在に支持され、主軸４は図示しない電動モータによって
回転駆動される。主軸４の先端部にはテーパ状の工具取
付穴５が形成され、工具取付穴５には工具６（図示例で
は工具ホルダ）のシャンク部７が嵌合するようになって
いる。シャンク部７の後端にはプルスタッド部８が一体
に形成され、主軸４内にはプルスタッド部８をくわえて
工具６を工具取付穴５に固定するチャック部９が設けら
れている。工具６の交換を行なう際には、図示しない自
動工具交換装置（ＡＴＣ）とチャック部９の動作とを連
動させて自動的に行なう。一般に図に示したような工作
機械の主軸４は、スラスト軸受２及びラジアル軸受３を
介して主軸頭１に支持されているため、高精度且つ強固
に支持された状態になっている。このため、重切削等の
場合に発生する大きな加工分力を受けても、主軸４は振
れることなく所望の回転状態が確保される。2. Description of the Related Art A machine tool such as a machining center is equipped with a spindle for rotating a milling cutter or a drill for cutting and drilling. FIG. 4 shows the supporting condition of the spindle. As shown in FIG. 4, a spindle 4 is rotatably supported by a spindle head 1 via a thrust bearing 2 and a radial bearing 3, and the spindle 4 is rotationally driven by an electric motor (not shown). A tapered tool mounting hole 5 is formed at the tip of the main shaft 4, and a shank portion 7 of a tool 6 (a tool holder in the illustrated example) is fitted into the tool mounting hole 5. A pull stud portion 8 is integrally formed at the rear end of the shank portion 7, and a chuck portion 9 for holding the pull stud portion 8 and fixing the tool 6 in the tool mounting hole 5 is provided in the main shaft 4. When exchanging the tool 6, an automatic tool exchanging device (ATC) (not shown) and the operation of the chuck portion 9 are automatically operated in association with each other. In general, a spindle 4 of a machine tool as shown in the figure is supported by the spindle head 1 via a thrust bearing 2 and a radial bearing 3, so that the spindle 4 is supported with high precision and rigidity. Therefore, even if a large machining component force generated in the case of heavy cutting or the like is applied, the spindle 4 does not swing and a desired rotation state is secured.
【０００３】上述したような主軸４はスラスト軸受２及
びラジアル軸受３を介して主軸頭１に支持されているの
で、回転状態は高精度且つ強固に保持されている。しか
し、主軸４自体は高精度に加工してもアンバランスが生
じてしまい、このアンバランスは主軸４が大きくなれば
なる程顕著に表れる。主軸４自体にアンバランスが生じ
ると、高精度に回転保持を行なっても若干の振れ等が生
じて加工精度に影響を及ぼしてしまう。そこで、従来か
ら図５に示したように、組付け後には主軸頭１内に収納
されて外部からは見えない部位である主軸４の後端部
に、削取部１０を形成して主軸４の全体のバランスを取
るようにしている。また、削取部１０を形成する他に肉
盛部等を形成したり別途穴を形成する場合もある。削取
部１０を主軸４の後端部に形成したことにより、主軸頭
１の外部から削取部１０が見えることがなく、工作機械
の見栄えを低下させることがない。Since the main spindle 4 as described above is supported by the main spindle head 1 via the thrust bearing 2 and the radial bearing 3, the rotational state is maintained with high accuracy and firmly. However, even if the spindle 4 itself is machined with high accuracy, an imbalance occurs, and this imbalance becomes more remarkable as the spindle 4 becomes larger. If the spindle 4 itself is unbalanced, even if the spindle 4 is rotated and held with high accuracy, some vibration or the like will occur and affect the processing accuracy. Therefore, as shown in FIG. 5, the shaving portion 10 is formed at the rear end of the spindle 4 which is a portion that is housed in the spindle head 1 after assembly and cannot be seen from the outside. Trying to balance the whole. Further, in addition to forming the scraped portion 10, a built-up portion or the like may be formed or a hole may be formed separately. By forming the shaving portion 10 at the rear end portion of the spindle 4, the shaving portion 10 is not visible from the outside of the spindle head 1 and the appearance of the machine tool is not deteriorated.
【０００４】[0004]
【発明が解決しようとする課題】削取部１０を主軸４の
後端部に形成した従来のバランス取り構造では、バラン
ス取りを行なうための削取部１０が外部に現れることが
ないので、見栄えを低下させることなく主軸４の回転バ
ランスを調整することが可能になる。しかし、主軸４自
体にバランス取りを行なうための削取部１０を加工して
いるので、製品の形状を著しく変えることが許されず加
工できる形状や範囲には限界があり、正確なバランス取
りが難しいものとなっていた。また、一度主軸頭１に主
軸４を組付けた後にバランス調整を行なう場合、主軸頭
１を分解して主軸４を外部に外す必要があるため、作業
能率が悪いものであり作業時間を多く費やしてしまい経
済性も悪いものとなっていた。また、主軸頭１に主軸４
を組付けた後は、何回もバランス調整を行なうことは現
実上不可能であり、現物合わせが行なえずバランス調整
には限界があった。In the conventional balancing structure in which the shaving portion 10 is formed at the rear end portion of the main shaft 4, the shaving portion 10 for balancing does not appear outside, so that it looks good. It is possible to adjust the rotational balance of the main shaft 4 without lowering the rotation speed. However, since the spindle 4 itself is machined with the shaving portion 10 for balancing, it is not allowed to remarkably change the shape of the product, and there is a limit to the shape and range that can be machined, making accurate balancing difficult. It was a thing. In addition, when the spindle 4 is assembled to the spindle head 1 once and then the balance is adjusted, it is necessary to disassemble the spindle head 1 and remove the spindle 4 to the outside, so the work efficiency is poor and a lot of working time is spent. The economy was bad as well. In addition, the spindle head 1 has a spindle 4
After assembling, it is practically impossible to carry out the balance adjustment many times, and there was a limit to the balance adjustment because the actual product could not be adjusted.
【０００５】本発明は上記状況に鑑みてなされたもの
で、見栄えを低下させることなく正確にしかも簡単にバ
ランス調整を行なうことができる回転シャフトのバラン
ス取り構造を提供することを目的とする。The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a balancing structure for a rotating shaft, which allows accurate and easy balance adjustment without deteriorating the appearance.
【０００６】[0006]
【課題を解決するための手段】上記目的を達成するため
本発明の構成は構成は、外部に臨む部位における回転シ
ャフトに穴を形成し、該穴に重量調整用の錘を埋め込み
固定したことを特徴とする。また、前記回転シャフトは
工作機械における主軸であり、前記穴は前記主軸の前面
側の端面に形成されたねじ穴であり、前記錘は、長さに
よって必要重量が設定される質量部と、前記ねじ穴に螺
合されるねじ部とで構成されていることを特徴とする。
また、前記ねじ穴は、前面側の端面に形成されたアタッ
チメント取り付け用のねじ穴を用いたことを特徴とす
る。In order to achieve the above object, the structure of the present invention is such that a hole is formed in a rotary shaft in a portion facing the outside, and a weight for weight adjustment is embedded and fixed in the hole. Characterize. Further, the rotary shaft is a main shaft in a machine tool, the hole is a screw hole formed in an end face on the front surface side of the main shaft, and the weight is a mass part in which a necessary weight is set by a length, and It is characterized in that it is configured with a screw portion screwed into the screw hole.
Further, the screw hole is a screw hole for attaching an attachment, which is formed on an end face on the front surface side.
【０００７】[0007]
【作用】穴に錘を埋め込み固定することにより、回転シ
ャフトのバランス調整を外部から行なう。穴は錘によっ
て塞がれるため、外部からの見栄えを低下させることは
ない。また、工作機械における主軸のバランス調整を行
う際には、前面側の端面に形成されたねじ穴に錘のねじ
部を螺合する。バランス調整の必要重量は錘の質量部に
よって決定される。ねじ穴としてアタッチメント取り付
け用のねじ穴を用いることにより、バランス調整を行な
うためのねじ穴を設ける必要がない。The balance of the rotary shaft is externally adjusted by embedding and fixing the weight in the hole. Since the hole is blocked by the weight, it does not reduce the external appearance. Further, when adjusting the balance of the spindle in the machine tool, the threaded portion of the weight is screwed into the screw hole formed in the end face on the front surface side. The required weight for balancing is determined by the mass of the weight. By using a screw hole for attaching the attachment as the screw hole, it is not necessary to provide a screw hole for adjusting the balance.
【０００８】[0008]
【実施例】図１には本発明の一実施例に係る回転シャフ
トのバランス取り構造を適用した工作機械の主軸の要部
断面、図２には図１の正面、図３には錘の側面を示して
ある。尚、図示の主軸の主軸頭への支持は図４で示した
構造と同一であるので重複する説明は省略する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a sectional view of a main part of a machine tool to which a rotary shaft balancing structure according to an embodiment of the present invention is applied, FIG. 2 is a front view of FIG. 1, and FIG. 3 is a side surface of a weight. Is shown. Since the support of the illustrated spindle to the spindle head is the same as the structure shown in FIG. 4, duplicate description will be omitted.
【０００９】図１、図２に示すように、主軸頭に回転自
在に支持される主軸２１の前面側にはテーパ状の工具取
付穴２２が形成され、工具取付穴２２には図示しない工
具ホルダのシャンク部が嵌合するようになっている（図
４参照）。主軸２１の前面側の端面の４箇所にはアタッ
チメント取り付け用のねじ穴２３が形成され、ねじ穴２
３は主軸２１を主軸頭に支持した際に外部に臨む状態に
なる。ねじ穴２３の底部には軸方向に延びる底穴２４が
形成されている。ねじ穴２３は組み立て時の主軸２１の
吊り下げ作業に用いられるようになっている。また、ね
じ穴２３は、例えばフェイスカッタの固定用に用いられ
ることもある。ねじ穴２３には重量調整用の錘２５が螺
合しており、錘２５は外部からねじ穴２３に螺合され
る。錘２５を４箇所のねじ穴２３に適宜螺合することに
より、主軸２１のバランス調整が行なわれる。As shown in FIGS. 1 and 2, a tapered tool mounting hole 22 is formed on the front surface side of a spindle 21 rotatably supported by a spindle head, and a tool holder (not shown) is formed in the tool mounting hole 22. The shank portion of is fitted (see FIG. 4). Screw holes 23 for attachment attachment are formed at four positions on the front end surface of the spindle 21.
3 is in a state of facing the outside when the spindle 21 is supported by the spindle head. A bottom hole 24 extending in the axial direction is formed at the bottom of the screw hole 23. The screw hole 23 is used for suspending the main shaft 21 during assembly. Further, the screw hole 23 may be used for fixing a face cutter, for example. A weight 25 for weight adjustment is screwed into the screw hole 23, and the weight 25 is screwed into the screw hole 23 from the outside. By properly screwing the weight 25 into the four screw holes 23, the balance of the main shaft 21 is adjusted.
【００１０】図３に基づいて錘２５を説明する。図に示
すように、錘２５にはねじ穴２３に螺合するねじ部２６
が設けられ、ねじ部２６には質量部２７が一体に形成さ
れている。ねじ部２６をねじ穴２３に螺合した際、質量
部２７が底穴２４内に配されるようになっている。質量
部２７は長さＬによって必要重量が設定され、質量部２
７の長さＬが異なる複数種類の錘２５が予め用意されて
いる。尚、バランス調整時に質量部２７を加工すること
で必要重量を設定するようにすれば、予め用意する錘２
５の数を減らすことができると共に、現物合わせを行い
ながらバランス調整が可能となる。The weight 25 will be described with reference to FIG. As shown in the figure, the weight 25 has a screw portion 26 that is screwed into the screw hole 23.
Is provided, and a mass portion 27 is integrally formed with the screw portion 26. When the screw portion 26 is screwed into the screw hole 23, the mass portion 27 is arranged in the bottom hole 24. The required weight of the mass part 27 is set by the length L.
Plural kinds of weights 25 having different lengths L are prepared in advance. If the necessary weight is set by processing the mass portion 27 during balance adjustment, the weight 2 prepared in advance
The number of 5 can be reduced, and the balance can be adjusted while performing actual matching.
【００１１】尚、上記実施例では、主軸２１の前面側の
端面のアタッチメント取り付け用のねじ穴２３に錘２５
を螺合するようにしたが、錘２５を螺合するためのねじ
穴を別に設けてよく、また、ねじ穴ではなく穴に錘２５
を埋め込み固定するようにしてもよい。また、ねじ穴を
設ける位置も主軸２１の前面側の端面に限定されず、外
部から臨む位置であれば主軸２１の前面側の端面以外の
位置でもよい。また、回転シャフトとしては、バランス
取りを必要とするものであれば主軸２１に限定されるも
のではない。In the above embodiment, the weight 25 is provided in the screw hole 23 for attaching the attachment on the front end of the main shaft 21.
However, a screw hole for screwing the weight 25 may be provided separately, and the weight 25 is not provided in the screw hole.
May be embedded and fixed. Further, the position where the screw hole is provided is not limited to the end face on the front surface side of the main shaft 21, and may be a position other than the end face on the front surface side of the main shaft 21 as long as it is a position facing from the outside. The rotary shaft is not limited to the main shaft 21 as long as it requires balancing.
【００１２】上記構成のバランス取り構造の作用を説明
する。主軸２１を主軸頭に組付けた後、主軸２１の端面
に形成されたねじ穴２３に錘２５を主軸頭の外部から螺
合する。主軸２１の回転状況を見ながら質量部２７の長
さＬが異なる錘２５を適宜ねじ穴２３に螺合し、主軸２
１のバランスを調整する。また、バランス調整時に質量
部２７を加工すれば、主軸２１の状況に合った必要重量
が設定されるようになるため、精度良くバランス取りを
行なうことができる。主軸２１のバランス調整を行なっ
た後のねじ穴２３は錘２５によって塞がれるため、外部
からの見栄えを低下させることはない。また、ねじ穴２
３としてアタッチメント取り付け用のねじ穴を用いてい
るので、バランス調整を行なうためのねじ穴を特別に設
ける必要がない。一方、バランスの悪い工具が用いられ
た場合、主軸２１側で工具を装着した状態の回転バラン
スの調整を行なうこともできる。The operation of the balancing structure having the above structure will be described. After the spindle 21 is assembled to the spindle head, the weight 25 is screwed into the screw hole 23 formed in the end surface of the spindle 21 from the outside of the spindle head. While watching the rotation state of the main shaft 21, the weights 25 having different lengths L of the mass portion 27 are appropriately screwed into the screw holes 23, and the main shaft 2
Adjust the balance of 1. Further, if the mass portion 27 is processed at the time of balance adjustment, a necessary weight suitable for the situation of the main shaft 21 is set, so that the balance can be accurately obtained. Since the screw hole 23 after the balance adjustment of the main shaft 21 is closed by the weight 25, the external appearance is not deteriorated. Also, screw holes 2
Since a screw hole for attaching the attachment is used as 3, there is no need to specially provide a screw hole for adjusting the balance. On the other hand, when a tool having a poor balance is used, it is possible to adjust the rotational balance with the tool mounted on the spindle 21 side.
【００１３】従って、上述したバランス取り構造による
と、錘２５を主軸頭の外部からねじ穴２３に螺合してバ
ランス取りを行なうようにしたので、主軸頭に組付けた
後の主軸２１のバランス調整が可能となり、作業性良く
しかも短時間で能率良くバランス取りを行なうことが可
能になると共に、バランス取り精度の微調整が可能とな
る。また、バランス調整を行なった後は、ねじ穴２３が
錘２５によって塞がれるため、外観を損なうことがな
い。Therefore, according to the above-described balancing structure, the weight 25 is screwed into the screw hole 23 from the outside of the spindle head to perform balancing, so that the balance of the spindle 21 after being assembled to the spindle head is balanced. The adjustment can be performed, the workability can be improved, the balance can be efficiently obtained in a short time, and the fine adjustment of the balance adjustment accuracy can be performed. Further, after the balance adjustment is performed, the screw hole 23 is closed by the weight 25, so that the appearance is not damaged.
【００１４】[0014]
【発明の効果】本発明の回転シャフトのバランス取り構
造は、外部に臨む部位における回転シャフトに穴を形成
し、穴に重量調整用の錘を埋め込み固定してバランス調
整を行なうようにしたので、回転シャフトのバランス調
整を外部から行なうことが可能になると共に、穴は錘に
よって塞がれるため、外部からの見栄えを低下させるこ
とはない。この結果、見栄えを低下させることなく正確
にしかも簡単に回転シャフトのバランス調整を行なうこ
とができ、バランス取りの高精度化及び作業能率向上が
図れる。According to the balance structure of the rotary shaft of the present invention, a hole is formed in the rotary shaft at a portion facing the outside, and a weight for weight adjustment is embedded and fixed in the hole for balance adjustment. The balance of the rotary shaft can be adjusted from the outside, and the hole is closed by the weight, so that the appearance from the outside is not deteriorated. As a result, the balance of the rotary shaft can be accurately and easily adjusted without deteriorating the appearance, and the precision of the balancing can be improved and the work efficiency can be improved.
【００１５】また、工作機械の主軸の前面側の端面にね
じ穴を形成し、長さによって必要重量が設定される質量
部とねじ穴に螺合されるねじ部とで構成される錘をねじ
穴に螺合して主軸のバランス調整を行なうようにしたの
で、主軸頭に主軸を支持した状態で主軸のバランス調整
を外部から行なうことが可能になると共に、ねじ穴は錘
によって塞がれるため、主軸の外観を低下させることが
ない。この結果、見栄えを低下させることなく正確にし
かも簡単に主軸のバランス調整を行なうことができ、主
軸のバランス取りの高精度化及び作業能率向上が図れ
る。また、ねじ穴としてアタッチメント取り付け用のね
じ穴を用いたことにより、バランス調整を行なうための
ねじ穴を設ける必要がなく、加工工数の削減が可能とな
る。Further, a screw hole is formed on the end face on the front side of the main shaft of the machine tool, and a weight composed of a mass part for setting a necessary weight depending on the length and a screw part screwed into the screw hole is screwed. Since the spindle is adjusted by screwing it into the hole, the spindle can be adjusted from the outside while the spindle is supported by the spindle head, and the screw hole is blocked by the weight. , The appearance of the spindle is not deteriorated. As a result, the balance adjustment of the spindle can be accurately and easily performed without deteriorating the appearance, and the accuracy of the spindle balance can be improved and the work efficiency can be improved. Further, since the screw holes for attaching the attachment are used as the screw holes, it is not necessary to provide screw holes for adjusting the balance, and the number of processing steps can be reduced.
【図１】本発明の一実施例に係る回転シャフトのバラン
ス取り構造を適用した工作機械の主軸の要部断面図。FIG. 1 is a cross-sectional view of a main part of a spindle of a machine tool to which a rotating shaft balancing structure according to an embodiment of the present invention is applied.
【図２】図１の正面図。FIG. 2 is a front view of FIG. 1;
【図３】錘の側面図。FIG. 3 is a side view of the weight.
【図４】工作機械の主軸の支持状況をの断面図。FIG. 4 is a cross-sectional view of a supporting state of a spindle of a machine tool.
【図５】従来の主軸の外観図。FIG. 5 is an external view of a conventional spindle.
２１ 主軸 ２２ 工具取付穴 ２３ ねじ穴 ２４ 底穴 ２５ 錘 ２６ ねじ部 ２７ 質量部 21 spindle 22 tool mounting hole 23 screw hole 24 bottom hole 25 weight 26 screw part 27 mass part
Claims (3)
穴を形成し、該穴に重量調整用の錘を埋め込み固定した
ことを特徴とする回転シャフトのバランス取り構造。1. A balance structure for a rotary shaft, characterized in that a hole is formed in a rotary shaft in a portion facing the outside, and a weight for weight adjustment is embedded and fixed in the hole.
軸であり、前記穴は前記主軸の前面側の端面に形成され
たねじ穴であり、前記錘は、長さによって必要重量が設
定される質量部と、前記ねじ穴に螺合されるねじ部とで
構成されていることを特徴とする請求項１に記載の回転
シャフトのバランス取り構造。2. The rotating shaft is a main shaft in a machine tool, the hole is a screw hole formed in an end face on the front side of the main shaft, and the weight is a mass part in which a necessary weight is set depending on a length. And a threaded portion that is screwed into the threaded hole, the balancing structure for the rotating shaft according to claim 1.
たアタッチメント取り付け用のねじ穴を用いたことを特
徴とする請求項２に記載の回転シャフトのバランス取り
構造。3. The balance structure for a rotating shaft according to claim 2, wherein the screw hole is a screw hole for attaching an attachment, which is formed on an end face on the front surface side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP31618094A JPH08174370A (en) | 1994-12-20 | 1994-12-20 | Balancing structure of rotary shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP31618094A JPH08174370A (en) | 1994-12-20 | 1994-12-20 | Balancing structure of rotary shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH08174370A true JPH08174370A (en) | 1996-07-09 |
Family
ID=18074192
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP31618094A Withdrawn JPH08174370A (en) | 1994-12-20 | 1994-12-20 | Balancing structure of rotary shaft |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH08174370A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008132579A (en) * | 2006-11-29 | 2008-06-12 | Okuma Corp | Spindle structure |
| US20100247261A1 (en) * | 2005-11-28 | 2010-09-30 | Siemens Aktiengesellschaft | Method for reducing vibrations, which occur during a machining process, of a machine element and/or of a workpiece |
| JP2012176455A (en) * | 2011-02-25 | 2012-09-13 | Okuma Corp | Rotary spindle device |
| JP2016097478A (en) * | 2014-11-21 | 2016-05-30 | ブラザー工業株式会社 | Main spindle device |
-
1994
- 1994-12-20 JP JP31618094A patent/JPH08174370A/en not_active Withdrawn
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100247261A1 (en) * | 2005-11-28 | 2010-09-30 | Siemens Aktiengesellschaft | Method for reducing vibrations, which occur during a machining process, of a machine element and/or of a workpiece |
| US8360697B2 (en) * | 2005-11-28 | 2013-01-29 | Siemens Aktiengesellschaft | Method for reducing vibrations, which occur during a machining process, of a machine element and/or of a workpiece |
| JP2008132579A (en) * | 2006-11-29 | 2008-06-12 | Okuma Corp | Spindle structure |
| US7503735B2 (en) * | 2006-11-29 | 2009-03-17 | Okuma Corporation | Spindle structure |
| JP2012176455A (en) * | 2011-02-25 | 2012-09-13 | Okuma Corp | Rotary spindle device |
| JP2016097478A (en) * | 2014-11-21 | 2016-05-30 | ブラザー工業株式会社 | Main spindle device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP2512454Y2 (en) | Rotary tool | |
| US6825630B2 (en) | Machine tool, tool, and tool holder | |
| JPS6333961B2 (en) | ||
| JPS6242723B2 (en) | ||
| JP2001246530A (en) | Ring for adjusting deflection precision/rotational balance of tool and adjustment method | |
| JPH08174370A (en) | Balancing structure of rotary shaft | |
| JP4330345B2 (en) | Tool holder | |
| AU655826B2 (en) | Balancing device for rotary cutting tools | |
| JP2003071676A (en) | Rotation balance adjusting structure of spindle | |
| JPH09309021A (en) | Multi-purpose cutting edge holder device | |
| JP2007038310A (en) | Cutting tool | |
| JP3002624U (en) | Easy tool for rotational balance | |
| EP0592694B1 (en) | Toolholder for an adjustable circular milling cutter | |
| JPS5827043B2 (en) | tool mounting device | |
| KR20010047913A (en) | Jig for fixing work piece | |
| CN214109701U (en) | Knife handle with dynamic unbalance adjusting function | |
| JPS61252062A (en) | Grinding rotor consisting of spindle and grinding wheel flange | |
| JP4115700B2 (en) | Cutting tools | |
| KR100938728B1 (en) | Machine tool, tool, and tool holder | |
| JPH10118872A (en) | Machine tool having multi spindle head | |
| JPH0885004A (en) | Main spindle of machine tool | |
| JPH0333395Y2 (en) | ||
| JPS5821669Y2 (en) | round blade tools | |
| JPH11179610A (en) | Roll cutting tool | |
| KR20040022958A (en) | A holder for machine tools |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A300 | Withdrawal of application because of no request for examination |
Free format text: JAPANESE INTERMEDIATE CODE: A300 Effective date: 20020305 |