JP2001150213A - Device for mounting/demounting tool by shrinkage fit - Google Patents
Device for mounting/demounting tool by shrinkage fitInfo
- Publication number
- JP2001150213A JP2001150213A JP33726399A JP33726399A JP2001150213A JP 2001150213 A JP2001150213 A JP 2001150213A JP 33726399 A JP33726399 A JP 33726399A JP 33726399 A JP33726399 A JP 33726399A JP 2001150213 A JP2001150213 A JP 2001150213A
- Authority
- JP
- Japan
- Prior art keywords
- tool
- holder
- mounting hole
- heating coil
- tool holder
- 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- Withdrawn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
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P11/00—Connecting or disconnecting metal parts or objects by metal-working techniques not otherwise provided for
- B23P11/02—Connecting or disconnecting metal parts or objects by metal-working techniques not otherwise provided for by first expanding and then shrinking or vice versa, e.g. by using pressure fluids; by making force fits
- B23P11/025—Connecting or disconnecting metal parts or objects by metal-working techniques not otherwise provided for by first expanding and then shrinking or vice versa, e.g. by using pressure fluids; by making force fits by using heat or cold
- B23P11/027—Connecting or disconnecting metal parts or objects by metal-working techniques not otherwise provided for by first expanding and then shrinking or vice versa, e.g. by using pressure fluids; by making force fits by using heat or cold for mounting tools in tool holders
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gripping On Spindles (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、加熱コイル中に工
具ホルダーを挿入セットして、その誘導加熱の利用によ
って工具取付穴を加熱膨張させることにより、工具のシ
ャンク部を挿入して焼ばめし、あるいは焼ばめしたシャ
ンク部をその工具取付穴から離脱させる工具の着脱装置
に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for inserting and setting a tool holder in a heating coil, and heating and expanding a tool mounting hole by utilizing the induction heating to insert and shrink-fit the shank portion of the tool. Or a tool attachment / detachment device for detaching a shrink-fitted shank from its tool mounting hole.
【０００２】[0002]
【従来の技術】誘導加熱を利用した焼ばめ装置は、図３
に示すように、交流電源Ｅにつながれ、支持装置６に支
持された加熱コイル１の中に工具ホルダー２のクランプ
部３を挿入セットして、スイッチＳＷを入れることによ
り、電磁誘導によって工具ホルダー２を誘導加熱して、
クランプ部３の熱膨張によりその工具取付穴４を拡張さ
せ、この状態で工具５のシャンク部６を工具取付穴４に
挿入して焼ばめし、またこうして焼ばめした工具５をホ
ルダー２から取り外すときは、上記同様に工具ホルダー
２を加熱して工具取付穴４を拡張させた状態で工具５の
シャンク部５ａを離脱させるようになっている。2. Description of the Related Art A shrink fit apparatus using induction heating is shown in FIG.
As shown in (1), the clamp unit 3 of the tool holder 2 is inserted and set in the heating coil 1 supported by the support device 6 and connected to the AC power source E, and the switch SW is turned on. Induction heating,
The tool mounting hole 4 is expanded by the thermal expansion of the clamp portion 3, and in this state, the shank portion 6 of the tool 5 is inserted into the tool mounting hole 4 and shrink-fitted, and the tool 5 thus shrink-fitted from the holder 2. When removing, the shank portion 5a of the tool 5 is detached in a state where the tool holder 2 is heated and the tool mounting hole 4 is expanded in the same manner as described above.
【０００３】このような焼ばめ装置を使用して工具５の
着脱を行う際、工具ホルダー２は、図３に示すようにフ
ランジ部７を挟んでクランプ部３と反対側のテーパシャ
ンク部８′を装置基台９上部に係合させて立てた状態と
し、また加熱コイル１は、内径が工具ホルダー２のクラ
ンプ部３の外径よりやや大きくして両者間に間隙を設け
且つ長さがクランプ部３の長さと略等しい長さのものを
用いて、クランプ部３に遊嵌させた状態で支持装置６に
よって宙吊り状に支持されている。When the tool 5 is attached and detached by using such a shrink fitting device, the tool holder 2 is provided with a tapered shank portion 8 opposite to the clamp portion 3 across the flange portion 7 as shown in FIG. ′ Is engaged with the upper portion of the apparatus base 9 to be in an upright state, and the inner diameter of the heating coil 1 is slightly larger than the outer diameter of the clamp portion 3 of the tool holder 2 so that a gap is provided between them and the length is longer. It is supported by the support device 6 in a suspended state while being loosely fitted to the clamp portion 3 using a member having a length substantially equal to the length of the clamp portion 3.
【０００４】[0004]
【発明が解決しようとする課題】加熱コイル１として、
上記のようにクランプ部３の長さと等しい長さのものを
用いた場合、このコイル１を、図３に示すように工具ホ
ルダー２のクランプ部３に遊嵌させた状態にセットした
とき、加熱コイル１の上端が工具ホルダー２のクランプ
部３の上端と同レベルとなって、加熱コイル１は工具ホ
ルダー２のクランプ部３のみを加熱することができる。SUMMARY OF THE INVENTION As the heating coil 1,
When a coil having a length equal to the length of the clamp portion 3 is used as described above, when the coil 1 is set in a state of being loosely fitted to the clamp portion 3 of the tool holder 2 as shown in FIG. The upper end of the coil 1 is at the same level as the upper end of the clamp 3 of the tool holder 2, and the heating coil 1 can heat only the clamp 3 of the tool holder 2.
【０００５】しかしながら、工具ホルダーにはクランプ
部３の長さが種々異なるものがあるため、上記のように
加熱コイル１の長さを工具ホルダー２のクランプ部３の
長さに設定すると、工具ホルダー毎に長さの異なる加熱
コイルを使用する必要があって、非常に不経済である。
このため、焼ばめ装置の加熱コイルとしては、長さの異
なる種々の工具ホルダーに適用できるように、長さの長
いコイルを使用することがある。However, since there are various tool holders having different lengths of the clamp portion 3, if the length of the heating coil 1 is set to the length of the clamp portion 3 of the tool holder 2 as described above, It is very uneconomical to use different lengths of heating coil each time.
For this reason, a long coil may be used as the heating coil of the shrink fitting apparatus so that the coil can be applied to various tool holders having different lengths.
【０００６】しかして、上記のように工具ホルダーのク
ランプ部の長さよりも長い加熱コイルを使用した場合に
は、加熱コイルの上端部が、この中に挿入された工具ホ
ルダーのクランプ部上端よりも上方へ突出することにな
り、そうなると、クランプ部の工具取付穴に取り付けら
れた工具を離脱させるときに問題が生ずる。However, when a heating coil longer than the length of the clamp portion of the tool holder is used as described above, the upper end of the heating coil is higher than the upper end of the clamp portion of the tool holder inserted therein. It will project upwards, which causes a problem when detaching the tool attached to the tool attachment hole of the clamp portion.
【０００７】即ち、工具を工具取付穴から離脱させる際
には、加熱コイルによって工具ホルダーのクランプ部を
再び加熱するが、このとき加熱コイルの上端部が、工具
ホルダーのクランプ部上端よりも上方へ突出している
と、クランプ部の工具取付穴に取り付けられている工具
のクランプ部より突出している部分まで加熱されること
になって、これが熱伝導により工具全体、特にシャンク
部までが熱膨張し工具ホルダーのクランプ部から抜けな
くなる。That is, when the tool is detached from the tool mounting hole, the clamp portion of the tool holder is heated again by the heating coil. At this time, the upper end of the heating coil is higher than the upper end of the clamp portion of the tool holder. If it protrudes, the part of the tool attached to the tool mounting hole of the clamp part will be heated to the part protruding from the clamp part, and this will cause the entire tool, especially the shank part, to thermally expand due to heat conduction and the tool will expand. It does not come off from the clamp part of the holder.
【０００８】本発明は、加熱コイルがこの中に挿入セッ
トされる工具ホルダーのクランプ部分の長さよりも長
く、この加熱コイルが工具のクランプ部より突出する部
分までも囲繞した状態にあっても、工具ホルダーの工具
取付穴に焼ばめされた工具を離脱させる際に、工具に対
する加熱を回避できるようにしたこの種の焼きばめ装置
を提供することを目的とする。According to the present invention, even if the heating coil is longer than the length of the clamp portion of the tool holder inserted and set therein and the heating coil surrounds the portion protruding from the clamp portion of the tool, It is an object of the present invention to provide a shrink-fitting device of this kind that can avoid heating of a tool when a tool shrink-fitted into a tool mounting hole of a tool holder is detached.
【０００９】[0009]
【課題を解決するための手段】請求項１に係る発明は、
加熱コイル１１中に工具ホルダー２を挿入セットして、
その誘導加熱によって工具取付穴４を加熱膨張させるこ
とにより、ホルダー２に対する工具５の着脱を行う焼ば
めによる工具の着脱装置において、工具ホルダー２の工
具取付穴４に焼ばめされた工具５を離脱させるにあた
り、工具５を囲繞する導電性筒状体１０を工具ホルダー
２に配置するようにしたことを特徴とする。The invention according to claim 1 is
Insert the tool holder 2 into the heating coil 11 and set it.
The tool mounting hole 4 is heated and expanded by the induction heating, so that the tool 5 is fitted into and removed from the holder 2 by shrink fitting. Is characterized in that the conductive tubular body 10 surrounding the tool 5 is arranged in the tool holder 2 when the tool 5 is removed.
【００１０】請求項２は、請求項１に記載の焼ばめによ
る工具の着脱装置において、導電性筒状体２０の内周側
に断熱材層１２が形成されていることを特徴とする。According to a second aspect of the present invention, in the device for attaching and detaching a tool by shrink fitting according to the first aspect, a heat insulating material layer is formed on an inner peripheral side of the conductive tubular body.
【００１１】[0011]
【発明の実施の形態】図１に示す焼ばめ装置は、図３に
示した焼ばめ装置とほとんど同様な装置であって、交流
電源Ｅにつながれ、支持装置６によって宙吊り状に支持
された加熱コイル１１を備え、この加熱コイル１１は、
焼ばめされる工具ホルダー２のクランプ部３に遊嵌され
るような内径と、このクランプ部３の長さａよりもｂだ
け長い軸方向長さＬとを有していて、クランプ部３と反
対側のテーパシャンク部８を装置基台９上部に係合させ
て立てた状態で、クランプ部３に遊嵌されされるように
なっている。DESCRIPTION OF THE PREFERRED EMBODIMENTS The shrink-fitting device shown in FIG. 1 is almost the same as the shrink-fitting device shown in FIG. 3, and is connected to an AC power source E and supported in a suspended manner by a support device 6. Heating coil 11, which is
The clamp portion 3 has an inner diameter that is loosely fitted to the clamp portion 3 of the tool holder 2 to be shrink-fitted, and an axial length L that is longer than the length a of the clamp portion 3 by b. The taper shank portion 8 on the opposite side is engaged with the upper portion of the device base 9 and is vertically fitted to the clamp portion 3 in a standing state.
【００１２】上記のように工具ホルダー２のクランプ部
３の長さａよりもｂだけ長い加熱コイル１１を有する焼
ばめ装置を使用して、既に工具ホルダー２のクランプ部
３にシャンク部５ａが焼ばめされている工具５を離脱さ
せるにあたっては、図１のに示すように、工具ホルダ
ー２のクランプ部３先端（上端）から突出した工具５の
刃部等の突出部５ｂを囲繞する導電性筒状体１０を、そ
の突出部５ｂに遊嵌して支持させる。As described above, the shank portion 5a is already formed on the clamp portion 3 of the tool holder 2 by using the shrink fit device having the heating coil 11 which is longer than the length a of the clamp portion 3 of the tool holder 2 by b. In order to release the shrink-fitted tool 5, as shown in FIG. 1, a conductive material surrounding a protruding portion 5b such as a blade portion of the tool 5 protruding from the tip (upper end) of the clamp portion 3 of the tool holder 2. The flexible tubular body 10 is loosely fitted to and supported by the protruding portion 5b.
【００１３】上記導電性筒状体１０は、内径が工具５の
外径よりも大きい銅製の厚肉円筒体からなるもので、そ
の長さは、図示のように工具ホルダー２のクランプ部３
から突出した工具突出部５ａの突出長さより若干長い程
度がよい。また、この導電性筒状体１０は、図示のよう
に工具５の突出部５ｂに同心状に遊嵌した状態で、工具
ホルダー２のクランプ部３上端面に載置するだけでよ
い。The conductive tubular body 10 is made of a thick copper cylinder having an inner diameter larger than the outer diameter of the tool 5, and has a length equal to that of the clamp portion 3 of the tool holder 2 as shown in the figure.
It is preferable that the length is slightly longer than the projecting length of the tool projecting portion 5a projecting therefrom. Further, the conductive tubular body 10 only needs to be placed on the upper end surface of the clamp portion 3 of the tool holder 2 in a state of being loosely and concentrically fitted to the projecting portion 5b of the tool 5 as shown in the figure.
【００１４】上記のように工具５の突出部５ｂを囲繞す
る導電性筒状体１０を突出部５ｂに遊嵌して工具ホルダ
ー２のクランプ部３上に載置した状態で、焼ばめ装置の
スイッチＳＷを入れると、加熱コイル１１中に流れる電
流によって、この加熱コイル１１で囲まれた工具ホルダ
ー２のクランプ部３及び導電性筒状体１０の一部に亘っ
てそれぞれの表層面に渦電流が流れ、この渦電流とホル
ダー２及び筒状体１０の金属抵抗でジュール熱が発生し
て、これら工具ホルダー２のクランプ部３及び導電性筒
状体１０が夫々表面部から加熱される。With the conductive tubular body 10 surrounding the projecting portion 5b of the tool 5 loosely fitted on the projecting portion 5b and mounted on the clamp portion 3 of the tool holder 2 as described above, the shrink-fitting device is used. When the switch SW is turned on, the current flowing in the heating coil 11 causes a vortex on each surface layer over the clamp portion 3 of the tool holder 2 and a part of the conductive tubular body 10 surrounded by the heating coil 11. An electric current flows, and Joule heat is generated by the eddy current and the metal resistance of the holder 2 and the cylindrical body 10, so that the clamp portion 3 and the conductive cylindrical body 10 of the tool holder 2 are heated from the surface portions, respectively.
【００１５】上記クランプ部３の加熱により工具取付穴
４が拡張し、この工具取付穴４に嵌着されている工具５
のシャンク部５ａが離脱可能な状態となり、またこのと
き工具５の突出部５ｂに遊嵌された導電性筒状体１０は
その表面部から漸次加熱されてゆくから、この導電性筒
状体１０によって工具５の突出部５ｂが熱遮蔽された状
態となり、加熱コイル１１による工具５に対する加熱が
回避される。The tool mounting hole 4 expands due to the heating of the clamp portion 3, and the tool 5 fitted into the tool mounting hole 4
The shank portion 5a of the tool 5 is detachable, and at this time, the conductive tubular body 10 loosely fitted to the protruding portion 5b of the tool 5 is gradually heated from the surface thereof. As a result, the protruding portion 5b of the tool 5 is in a heat shielded state, and the heating of the tool 5 by the heating coil 11 is avoided.
【００１６】しかして、工具ホルダー２の工具取付穴４
が拡張されて工具５のシャンク部５ａが離脱可能な状態
になったとき、図１のに示すように、焼ばめ装置のス
イッチＳＷを切って加熱コイル１１による誘導加熱を停
止した後、導電性筒状体１０を工具ホルダー２上から取
り外したとき、工具５全体が殆ど加熱されず、それがた
めに工具５が熱膨張されていないから、該工具５のシャ
ンク部５ａをクランプ部３の工具取付穴４から円滑容易
に抜き出すことができる。Thus, the tool mounting hole 4 of the tool holder 2
Is extended and the shank 5a of the tool 5 can be removed, as shown in FIG. 1, after the switch SW of the shrink fitting device is turned off to stop the induction heating by the heating coil 11, When the tubular member 10 is removed from the tool holder 2, the entire tool 5 is hardly heated, and the tool 5 is not thermally expanded. Therefore, the shank portion 5 a of the tool 5 is It can be easily and smoothly extracted from the tool mounting hole 4.
【００１７】上記導電性筒状体１０は、銅によって円筒
状に形成したものであるが、銅に限ることなく、導電性
を有する鉄その他の材料によって形成することができ
る。また、図２に示すように、内周側にセラミックス等
の断熱材層１２を形成した導電性筒状体２０を使用すれ
ば、この断熱材層１２の断熱作用によって、前記加熱コ
イル１１による工具５に対する加熱を有効に回避するこ
とができる。The conductive tubular body 10 is formed in a cylindrical shape from copper. However, the conductive tubular body 10 is not limited to copper and can be formed from conductive iron or other materials. Further, as shown in FIG. 2, if a conductive tubular body 20 having a heat insulating material layer 12 made of ceramics or the like formed on the inner peripheral side is used, the heat insulating action of the heat insulating material layer 12 causes the tool by the heating coil 11 to be used. 5 can be effectively avoided.
【００１８】図１及び図２に示す実施形態では、導電性
筒状体１０，２０を工具ホルダー２のクランプ部３上端
に載置するようにしているが、例えば、これらの導電性
筒状体１０，２０を工具ホルダー２のクランプ部３の上
端部に外嵌して固定するようにしてもよい。In the embodiment shown in FIGS. 1 and 2, the conductive tubular members 10 and 20 are placed on the upper end of the clamp portion 3 of the tool holder 2. The tool 10 and 20 may be externally fitted to and fixed to the upper end of the clamp part 3 of the tool holder 2.
【００１９】[0019]
【発明の効果】請求項１に係る発明によれば、ホルダー
の工具取付穴に焼ばめされた工具を離脱させるにあた
り、工具を囲繞する導電性筒状体をホルダーに配置する
ようにしたから、焼ばめ装置の加熱コイルがこの中に挿
入セットされるホルダー部分の長さよりも長く、この加
熱コイルが工具を直接に囲繞した状態にあっても、上記
導電性筒状体によって、加熱コイルによる工具に対する
加熱を回避することができる。これがために工具の熱膨
張による工具ホルダーからの抜き取りが困難になるとい
う事態の発生を避けることができ、工具を円滑容易に工
具ホルダーから抜き出すことができる。According to the first aspect of the present invention, when the tool shrink-fitted into the tool mounting hole of the holder is detached, the conductive tubular body surrounding the tool is arranged on the holder. Even if the heating coil of the shrink fit device is longer than the length of the holder portion inserted and set therein, and the heating coil directly surrounds the tool, the heating coil is formed by the conductive tubular body. Can avoid heating the tool. As a result, it is possible to avoid a situation where it is difficult to remove the tool from the tool holder due to thermal expansion of the tool, and the tool can be easily and smoothly extracted from the tool holder.
【００２０】請求項２に記載のように、導電性筒状体の
内周側に断熱材層を形成したものを使用すれば、断熱材
層の断熱作用によって、加熱コイルによる工具に対する
加熱をより有効に回避することができる。According to the second aspect of the present invention, when the conductive tubular member having the heat insulating material layer formed on the inner peripheral side thereof is used, the heating of the tool by the heating coil is improved by the heat insulating effect of the heat insulating material layer. It can be effectively avoided.
【図１】 本発明方法の一実施形態を示す説明図であ
る。FIG. 1 is an explanatory diagram showing an embodiment of the method of the present invention.
【図２】 本発明方法の他の実施形態を示す説明図であ
る。FIG. 2 is an explanatory view showing another embodiment of the method of the present invention.
【図３】 従来一般的な方法を示す説明図である。FIG. 3 is an explanatory view showing a conventional general method.
２ 工具ホルダー ３ 工具ホルダーのクランプ部 ４ クランプ部の工具取付穴 ５ 工具 ５ａ 工具のシャンク部 ５ｂ 工具の刃部等の突出部 ６ 支持装置 ７ 工具ホルダーのフランジ部 １０，２０ 導電性筒状体 １２ 断熱材層 Reference Signs List 2 Tool holder 3 Tool holder clamp part 4 Tool mounting hole of clamp part 5 Tool 5a Tool shank part 5b Projection part such as blade part of tool 6 Support device 7 Flange part of tool holder 10, 20 Conductive cylindrical body 12 Insulation layer
Claims (2)
トして、その誘導加熱によって工具取付穴を加熱膨張さ
せて、ホルダーに対する工具の着脱を行う焼ばめによる
工具の着脱装置において、工具ホルダーの工具取付穴に
焼ばめされた工具を離脱させるにあたり、工具を囲繞す
る導電性筒状体を工具ホルダーに配置するようにしたこ
とを特徴とする焼ばめによる工具の着脱装置。1. A tool attachment / detachment device in which a tool holder is inserted and set in a heating coil, the tool mounting hole is heated and expanded by induction heating, and the tool is attached to and detached from the holder by shrink fitting. A tool attachment / detachment device by shrink fitting, wherein a conductive tubular body surrounding the tool is arranged in a tool holder when the tool shrink-fitted in the tool mounting hole is detached.
されていることを特徴とする請求項１に記載の焼ばめに
よる工具の着脱装置。2. The tool attachment / detachment device according to claim 1, wherein a heat insulating material layer is formed on an inner peripheral side of the conductive tubular body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP33726399A JP2001150213A (en) | 1999-11-29 | 1999-11-29 | Device for mounting/demounting tool by shrinkage fit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP33726399A JP2001150213A (en) | 1999-11-29 | 1999-11-29 | Device for mounting/demounting tool by shrinkage fit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2001150213A true JP2001150213A (en) | 2001-06-05 |
Family
ID=18306986
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP33726399A Withdrawn JP2001150213A (en) | 1999-11-29 | 1999-11-29 | Device for mounting/demounting tool by shrinkage fit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2001150213A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6588083B2 (en) * | 2000-05-19 | 2003-07-08 | Bilz Werkzeugfabrik Gmbh & Co. Kg | Method for force-transmitting clamping of a tool |
| KR20040023064A (en) * | 2002-09-10 | 2004-03-18 | 현대자동차주식회사 | a method and apparatus for fixing tool |
| WO2004048027A1 (en) * | 2002-11-27 | 2004-06-10 | Franz Haimer Maschinenbau Kg | Induction arrangement for inductively heating a tool holder |
| US7147410B2 (en) * | 2002-02-08 | 2006-12-12 | Wto Werkzeug-Einrichtungen Gmbh | Tool head for holding a tool in a machine tool |
| FR2909021A1 (en) * | 2006-11-29 | 2008-05-30 | Fournel Sa | Induction heating apparatus for bracing and unbracing e.g. helve ring, has electromagnetic screen formed of electricity conducting material, and magneto-dielectric field concentrators distributing power to surface of support cone |
| JP2016004661A (en) * | 2014-06-16 | 2016-01-12 | ワイエス電子工業株式会社 | Induction heating device and induction heating coil |
-
1999
- 1999-11-29 JP JP33726399A patent/JP2001150213A/en not_active Withdrawn
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6588083B2 (en) * | 2000-05-19 | 2003-07-08 | Bilz Werkzeugfabrik Gmbh & Co. Kg | Method for force-transmitting clamping of a tool |
| US6701597B2 (en) * | 2000-05-19 | 2004-03-09 | Bilz Werkzeugfabrik Gmbh Co. Kg | Method for force-transmitting clamping of a tool |
| US7147410B2 (en) * | 2002-02-08 | 2006-12-12 | Wto Werkzeug-Einrichtungen Gmbh | Tool head for holding a tool in a machine tool |
| KR20040023064A (en) * | 2002-09-10 | 2004-03-18 | 현대자동차주식회사 | a method and apparatus for fixing tool |
| WO2004048027A1 (en) * | 2002-11-27 | 2004-06-10 | Franz Haimer Maschinenbau Kg | Induction arrangement for inductively heating a tool holder |
| FR2909021A1 (en) * | 2006-11-29 | 2008-05-30 | Fournel Sa | Induction heating apparatus for bracing and unbracing e.g. helve ring, has electromagnetic screen formed of electricity conducting material, and magneto-dielectric field concentrators distributing power to surface of support cone |
| JP2016004661A (en) * | 2014-06-16 | 2016-01-12 | ワイエス電子工業株式会社 | Induction heating device and induction heating coil |
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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: 20070206 |