JP5016898B2 - Bite processing equipment - Google Patents

Bite processing equipment Download PDF

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JP5016898B2
JP5016898B2 JP2006310912A JP2006310912A JP5016898B2 JP 5016898 B2 JP5016898 B2 JP 5016898B2 JP 2006310912 A JP2006310912 A JP 2006310912A JP 2006310912 A JP2006310912 A JP 2006310912A JP 5016898 B2 JP5016898 B2 JP 5016898B2
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tool
cutting
cutting tool
axis
processing
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JP2008126324A (en
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照三 鈴木
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Shibaura Machine Co Ltd
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Toshiba Machine Co Ltd
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Priority claimed from CN2007103003675A external-priority patent/CN101219519B/en
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この発明は、例えばプレーナ型工作機械により、バイトに対し相対的にワークをXY平面上で往復動させ、該ワークの表面に、例えば液晶表示パネル、プラズマ表示パネルなどの薄型表示パネル用の導光板や偏光板、拡散板などの微細構造用の物品やその物品を製作するための金型に必要な、微細な多数の溝等を切削加工するバイト加工装置に係り、特にバイトの切削方向の向きを変えてワークを加工するバイト加工装置に関する。   The present invention is a light guide plate for a thin display panel such as a liquid crystal display panel or a plasma display panel, for example, by reciprocating a work on an XY plane relative to a cutting tool with a planar machine tool. In particular, it relates to a tool for cutting a large number of fine grooves required for a fine structure article such as a polarizing plate, a polarizing plate, and a mold for producing the article, and in particular the direction of the cutting direction of the tool The present invention relates to a tool for processing a workpiece by changing the workpiece.

上記のような微細構造用の物品や金型において、例えば金型を例にとると、金型は、微細な多数の溝を有しており、その加工には、バイトを用い、このバイトに対し相対的に金型の素材であるワークをXY平面上で往復動させて行われている(例えば、特許文献1参照)。   In the above-described fine structure article or mold, for example, when the mold is taken as an example, the mold has a large number of fine grooves, and a cutting tool is used for the processing. On the other hand, it is performed by reciprocating a workpiece, which is a material of a mold, on the XY plane (see, for example, Patent Document 1).

上記のようにバイトに対し相対的にワークをXY平面上で往復動させて行うバイト加工には、一般的にプレーナ型工作機械が用いられる。このプレーナ型工作機械は、XY平面上でワークを例えばX軸方向に往復動させ、バイトは、XY平面に垂直なZ軸方向の位置を所定値に保ち、X軸方向には移動させずにY軸方向の位置をワークの各往復動毎に変化させて行う。   As described above, a planar machine tool is generally used for the bite machining performed by reciprocating the workpiece on the XY plane relative to the bite. This planar machine tool reciprocates the workpiece on the XY plane, for example, in the X-axis direction, and the cutting tool maintains the position in the Z-axis direction perpendicular to the XY plane at a predetermined value and does not move in the X-axis direction. The position in the Y-axis direction is changed for each reciprocation of the workpiece.

バイトは、すくい角や逃げ角を有し、いわゆる切削加工のための向きがあるため、ワークの往復動のうちの往動か復動かのいずれか一方でしか加工することができない。ところで、上記の金型は、微細な多数の溝を加工する必要があるため、ワークの往復動の回数は膨大なものとなり、その加工には長時間を要する。
特開2005−279918号公報
Since the cutting tool has a rake angle and a clearance angle and has a so-called cutting direction, it can be machined only in one of the forward and backward movements of the reciprocating movement of the workpiece. By the way, since it is necessary to process a large number of fine grooves, the above-described mold requires a tremendous number of reciprocating motions of the workpiece, and the processing takes a long time.
JP-A-2005-279918

上記加工時間を短縮するためには、往動か復動のいずれか一方のみでなく、両方で加工できることが望ましい。このためにはバイトの切削方向の向きを変える必要がある。しかしながら、バイトの向きを変えることにより、バイトの切れ刃部が例えば上記Y軸方向等に変化すると、ワークの各往復動毎にバイトの切れ刃部の位置が所定の位置からずれ所望の加工を行うことができない。   In order to shorten the processing time, it is desirable that the processing can be performed not only in one of the forward and backward movements but also in both. For this purpose, it is necessary to change the cutting direction of the cutting tool. However, by changing the direction of the cutting tool, if the cutting edge of the cutting tool changes in the Y-axis direction or the like, for example, the position of the cutting edge of the cutting tool deviates from a predetermined position for each reciprocating movement of the workpiece. I can't do it.

また、往動中又は復動中にバイトの向きを変えつつ所定の曲線を描くように切削加工を行う場合にも、該バイトがその向きの変化に伴って位置ずれを生じると、所定の曲線を描くように加工することができない。   In addition, when cutting is performed so as to draw a predetermined curve while changing the direction of the cutting tool during the forward movement or the backward movement, if the cutting position of the cutting tool is caused by the change of the direction, the predetermined curve is generated. Can not be processed to draw.

この発明は、バイトの切削方向の向きを変えても切れ刃部が所定の位置に保たれ、上記往動及び復動の両方での加工や曲線の加工等を的確に行うことのできるバイト加工装置を提供することを目的としている。   The present invention provides a cutting tool capable of accurately performing the processing in both the forward movement and the backward movement, the processing of a curve, etc., even if the cutting direction of the cutting tool is changed. The object is to provide a device.

前述の目的を達成するため、本発明においては、 微細な多数の溝を加工するためのバイトを用いて前記バイトの切削方向の向きを変えてワークを加工するバイト加工装置において、 往復動を可能に駆動されるテーブルと、 前記バイトの切削方向の向きを変化可能に該バイトを取り付けるための回転軸と、 この回転軸の先端に前記バイトを着脱可能に取り付けるためのバイトホルダと、 このバイトホルダと前記回転軸との間に設けられ前記バイトの切れ刃部を前記回転軸の軸芯上に位置付けするため上下の面に互いに直行する突起を有する十字継手の調芯手段と、 を備え前記ワークに対する前記回転軸の位置を制御して、前記微細な多数の溝の加工を行うことを特徴とするバイト加工装置、とした。  In order to achieve the above-mentioned object, in the present invention, a reciprocating motion is possible in a cutting tool for processing a workpiece by changing the direction of the cutting direction of the cutting tool using a cutting tool for processing a large number of fine grooves. A table driven by the tool, a rotating shaft for mounting the tool so that the cutting direction of the tool can be changed, a tool holder for detachably mounting the tool at the tip of the rotating shaft, and the tool holder And a cross joint aligning means having protrusions perpendicular to each other on the upper and lower surfaces for positioning the cutting edge portion of the cutting tool on the axis of the rotating shaft. The bite machining apparatus is characterized in that the position of the rotary shaft with respect to is controlled to process the numerous grooves.

この発明は、上記のようにバイトホルダと回転軸との間に調芯手段を設け、バイトの切れ刃部を回転軸の軸芯上に位置付けするようにしたため、バイトの切削方向の向きを変えても切れ刃部を常に回転軸の軸芯上に位置させることができ、これにより前記回転軸の位置を制御するのみで、前述した往動及び復動の両方での加工や曲線の加工等を的確に行うことができる効果が得られる。   In the present invention, as described above, the centering means is provided between the tool holder and the rotary shaft, and the cutting blade portion of the tool is positioned on the shaft core of the rotary shaft, so that the direction of the cutting direction of the tool is changed. However, the cutting edge portion can always be positioned on the axis of the rotating shaft, and by this, only the position of the rotating shaft is controlled, the above-described processing in both forward and backward movements, curve processing, etc. The effect that can be performed accurately is obtained.

以下図1ないし図6により、この発明の一実施形態例について説明する。図1は、この発明をプレーナ型工作機械に適用した例を示す概要正面図であり、図2は、図1の右側面図である。図1及び図2において、10はベッド、11はテーブルである。テーブル11は、図示しないリニアモータ等の駆動装置によりベッド10上を図1においては紙面と垂直方向へ、また、図2においては左右方向(X軸方向)へテーブル11の上面と平行に所定の範囲を所定の速度で移動すべく搭載されている。テーブル11上には真空チャック12が取り付けられ、この真空チャック12により平板状のワーク13が吸着保持される。   An embodiment of the present invention will be described below with reference to FIGS. FIG. 1 is a schematic front view showing an example in which the present invention is applied to a planar machine tool, and FIG. 2 is a right side view of FIG. In FIG.1 and FIG.2, 10 is a bed and 11 is a table. The table 11 is placed on the bed 10 in a direction perpendicular to the paper surface in FIG. 1 and in a horizontal direction (X-axis direction) in FIG. 2 in parallel with the upper surface of the table 11 by a driving device such as a linear motor (not shown). It is mounted to move the range at a predetermined speed. A vacuum chuck 12 is attached on the table 11, and a flat work 13 is sucked and held by the vacuum chuck 12.

ベッド10の両側面にはコラム14、14が立ち上げられ、両コラム14の上端には、図1においては左右方向へ、また、図2においては紙面と垂直方向(Y軸方向)へテーブル11の上面と平行に伸びるクロスレール15が掛け渡して取り付けられている。このクロスレール15には、サドル16が図示しないリニアモータ等の駆動装置によりY軸方向へ移動可能かつ所定位置に停止可能に搭載されている。   Columns 14 and 14 are raised on both side surfaces of the bed 10, and a table 11 is provided at the upper end of both columns 14 in the left-right direction in FIG. 1 and in the direction perpendicular to the paper surface (Y-axis direction) in FIG. A cross rail 15 extending in parallel with the upper surface of the cable is attached to the cross rail 15. A saddle 16 is mounted on the cross rail 15 so as to be movable in the Y-axis direction and stopped at a predetermined position by a driving device such as a linear motor (not shown).

サドル16には、図1及び図2において上下方向すなわちテーブル11の上面(XY平面)と垂直方向(Z軸方向)へ移動可能に昇降台17が搭載されている。この昇降台17は、サドル16に取り付けられたサーボモータ18、又はテーブル11及びサドル16と同様に図示しないリニアモータ等の駆動装置により昇降されると共に所定位置に停止される。   1 and 2, an up / down platform 17 is mounted on the saddle 16 so as to be movable in the vertical direction, that is, in the vertical direction (Z-axis direction) with respect to the upper surface (XY plane) of the table 11. The lift 17 is lifted and lowered by a drive device such as a linear motor (not shown) similar to the servo motor 18 attached to the saddle 16 or the table 11 and the saddle 16 and stopped at a predetermined position.

昇降台17にはバイト回転台19が取り付けられている。バイト回転台19には、Z軸と平行に伸びる回転軸としての主軸(C軸)20が回転可能に取り付けられ、この主軸(C軸)20は、バイト回転台19に取り付けられたサーボモータ21により後述するように180°の回転を与えられる。   A tool turn table 19 is attached to the lifting table 17. A main shaft (C axis) 20 as a rotation axis extending in parallel with the Z axis is rotatably attached to the tool rotating table 19, and the main shaft (C axis) 20 is a servo motor 21 attached to the tool rotating table 19. To give a rotation of 180 ° as will be described later.

主軸(C軸)20の先端には、図3及び図4に示すように、調芯手段としての十字継手22を介してバイトホルダ23がボルト24により取り付けられている。十字継手22は、上下の面に沿って互いに直行して伸びる突起22A、22Bを有し、これらの突起22A、22Bは、主軸(C軸)20の先端面とバイトホルダ23の後端面に設けられた溝25、26にそれぞれスライド可能に係合されている。主軸(C軸)20とバイトホルダ23には、突起22A、22Bと平行に配置されて十字継手22の外周面に当接する調整ねじ27、28が設けられている。   As shown in FIGS. 3 and 4, a bite holder 23 is attached to the tip of the main shaft (C-axis) 20 with a bolt 24 via a cross joint 22 as an alignment means. The cross joint 22 has protrusions 22A and 22B extending perpendicularly to each other along the upper and lower surfaces, and these protrusions 22A and 22B are provided on the front end surface of the main shaft (C axis) 20 and the rear end surface of the bite holder 23. The grooves 25 and 26 are slidably engaged with each other. The main shaft (C-axis) 20 and the tool holder 23 are provided with adjusting screws 27 and 28 that are arranged in parallel with the protrusions 22A and 22B and come into contact with the outer peripheral surface of the cross joint 22.

バイトホルダ23は、上下に伸びる溝29にバイト30を嵌入し、バイト30は押え板31とボルト32により締め付け固定される。バイト30は、図3に示すように、その先端の正面から見た切れ刃部の形状が図6(イ)、(ロ)に示す加工溝13Aの形状に対応した山形をしており、この山形の頂点30Aは、上記調整ねじ27、28により十字継手22を介してバイトホルダ23を主軸(C軸)20の軸心と直行する方向へ移動させて調芯することにより、図3及び図4に示すように、主軸(C軸)20の軸心上に位置付けされる。なお、図3及び図4に示すバイト30は、図4に示すように、すくい角α(零ないし負の場合もある)と逃げ角βを有し、バイト30が図4において右から左へ移動して加工する例を示している。   The cutting tool holder 23 is inserted into a groove 29 extending vertically, and the cutting tool 30 is fastened and fixed by a presser plate 31 and a bolt 32. As shown in FIG. 3, the cutting tool 30 has a chevron shape corresponding to the shape of the machining groove 13A shown in FIGS. 6 (a) and 6 (b). The apex 30A of the chevron is aligned by moving the tool holder 23 in the direction perpendicular to the axis of the main shaft (C-axis) 20 through the cross joint 22 by the adjusting screws 27 and 28, thereby adjusting the center. As shown in FIG. 4, it is positioned on the axis of the main axis (C axis) 20. The cutting tool 30 shown in FIGS. 3 and 4 has a rake angle α (which may be zero or negative) and a clearance angle β as shown in FIG. 4, and the cutting tool 30 moves from right to left in FIG. An example of moving and processing is shown.

次いでこの装置の作用について説明する。まず、サーボモータ18によりバイト30のZ軸方向位置を加工溝13Aの深さに合わせるべく図1及び図2に示す昇降台17の高さ位置を定めると共に、図示しない駆動装置によりサドル16を移動させて主軸(C軸)20のY軸方向位置を最初の加工溝13Aの加工位置に位置付けする。   Next, the operation of this apparatus will be described. First, the height position of the lifting platform 17 shown in FIGS. 1 and 2 is determined by the servo motor 18 so that the position of the cutting tool 30 in the Z-axis direction matches the depth of the machining groove 13A, and the saddle 16 is moved by a driving device (not shown). Thus, the position of the main shaft (C axis) 20 in the Y-axis direction is positioned at the processing position of the first processing groove 13A.

次いでテーブル11をバイト切削に適した所定速度でX軸方向へ往復動させてバイト加工を行うが、テーブル11が図5(イ)に示すベッド10上の左端位置から図5(ロ)に示すベッド10上の右端位置まで移動する行程を往動とする。この往動時には、バイト30は、図5(イ)に示すように、同図において左向きに設定され、図5(イ)において左から右へ移動するワーク13に対して加工溝13Aを切削加工する。なお、図6(イ)は、図5(イ)を左から見た図であり、加工溝13Aの形状を表すため、最初ではなく第2番目の往動時の加工開始直前の状態を示している。   Next, the table 11 is reciprocated in the X-axis direction at a predetermined speed suitable for cutting of the cutting tool to perform cutting tool processing. The table 11 is shown in FIG. 5 (B) from the left end position on the bed 10 shown in FIG. The process of moving to the right end position on the bed 10 is defined as the forward movement. At the time of this forward movement, the cutting tool 30 is set to the left as shown in FIG. 5 (a), and the machining groove 13A is cut into the workpiece 13 moving from left to right in FIG. 5 (a). To do. 6A is a view of FIG. 5A viewed from the left, and shows a state immediately before the start of machining in the second forward movement instead of the first in order to represent the shape of the machining groove 13A. ing.

ワーク13が図5(ロ)に示すように、右端に達して往動時の切削加工を終了し、ワーク13がバイト30から図5(ロ)において右方へ離れると、サドル16はクロスレール15に沿ってY軸方向へ移動し、図6(ロ)に示すように、バイト30を加工溝13Aの1ピッチ分だけ同図において右方へ移動させる。   As shown in FIG. 5 (b), when the work 13 reaches the right end and the cutting process during the forward movement is finished, and the work 13 is separated from the cutting tool 30 to the right in FIG. 5 (b), the saddle 16 is moved to the cross rail. 15 is moved in the Y-axis direction, and as shown in FIG. 6B, the cutting tool 30 is moved to the right in the drawing by one pitch of the machining groove 13A.

このバイト30のY軸方向移動と共に、主軸(C軸)20はサーボモータ21により180°回転され、図5(ロ)及び図6(ロ)に示すように、バイト30の向きを反転させる。このとき、バイト30は、回転のみを行うため、Z軸方向の移動はなく、このため頂点30Aの高さ位置の変動はなく、一定の高さ位置に保たれる。また、この頂点30Aは、図3及び図4に示したように、主軸(C軸)20の軸心上に位置付けされているため、上記反転に伴う頂点30AのY軸方向の位置ずれもなく、バイト30の切れ刃部は1ピッチ分Y軸方向へ移動した位置に正確に位置付けされる。   Along with the movement of the cutting tool 30 in the Y-axis direction, the main shaft (C-axis) 20 is rotated 180 ° by the servo motor 21 to reverse the direction of the cutting tool 30 as shown in FIGS. 5 (B) and 6 (B). At this time, since the cutting tool 30 only rotates, there is no movement in the Z-axis direction. Therefore, there is no change in the height position of the vertex 30A, and the tool 30 is maintained at a constant height position. Further, as shown in FIGS. 3 and 4, since this vertex 30A is positioned on the axis of the main axis (C axis) 20, there is no misalignment of the vertex 30A in the Y-axis direction due to the inversion. The cutting edge portion of the cutting tool 30 is accurately positioned at a position moved in the Y-axis direction by one pitch.

上記のようにバイト30を反転させた後、テーブル11を、図5(ロ)に示すベッド10上の右端位置から図5(イ)に示すベッド10上の左端位置まで移動させ、このいわゆる復動時にも加工溝13Aを切削加工する。   After reversing the cutting tool 30 as described above, the table 11 is moved from the right end position on the bed 10 shown in FIG. 5B to the left end position on the bed 10 shown in FIG. The machining groove 13A is also cut during movement.

上記復動時の加工が終了したならば、バイト30を反転させて図5(イ)に示した状態に戻し、次の往動時加工を行う。以下、復動時、往動時の加工を同様に繰り返し行う。   When the machining at the time of the backward movement is completed, the cutting tool 30 is reversed to return to the state shown in FIG. 5 (a), and the machining at the next forward movement is performed. Thereafter, the processing at the time of backward movement and forward movement is repeated in the same manner.

前述した実施形態例では、バイト30を主軸(C軸)20の軸心上に正確に取り付けるための調芯手段として、十字継手22を用いた例を示したが、この発明はこれに限定されるものではなく、種々の方式の調芯手段を用いることができる。   In the above-described embodiment, the example in which the cross joint 22 is used as the alignment means for accurately mounting the cutting tool 30 on the axis of the main shaft (C-axis) 20 is shown, but the present invention is limited to this. However, various types of alignment means can be used.

また、前述した実施形態例では、バイト30を反転させることにより、往動時と復動時の両方で加工を行う例を示したが、この発明はこれに限定されるものではなく、少なくとも往動時と復動時のいずれか一方で、バイト30の切削方向の向きを変えつつ所定の曲線を描くように切削加工を行う場合等にも適用することができる。   Further, in the above-described embodiment, an example is shown in which processing is performed both during the forward movement and during the backward movement by reversing the cutting tool 30, but the present invention is not limited to this, and at least the forward movement is performed. The present invention can also be applied to a case where cutting is performed so as to draw a predetermined curve while changing the direction of the cutting direction of the cutting tool 30 at any one of the moving time and the backward movement time.

さらにまた、前述した実施形態例では、プレーナ型工作機械を用い、バイト30に対してワーク13を往復動させる例を示したが、この発明はこれに限定されるものではなく、バイト30側を往復動させるようにしてもよい。また、加工対象物は、液晶用の導光板や遮光シートなどの微細構造部品の金型に限らず、種々のワークの加工に適用することができ、さらにまた、加工形状も溝に限定されない等、種々変形実施可能である。   Furthermore, in the above-described embodiment, an example in which a planar machine tool is used to reciprocate the workpiece 13 with respect to the cutting tool 30 is shown. However, the present invention is not limited to this, and the cutting tool 30 side is arranged. You may make it reciprocate. In addition, the object to be processed is not limited to a mold of a fine structure part such as a light guide plate for liquid crystal or a light shielding sheet, but can be applied to processing various workpieces, and the processing shape is not limited to a groove. Various modifications can be made.

この発明は、プレーナ型工作機械等を用いてバイトの切削方向の向きを変えてワークを加工するバイト加工装置全般に適用できる。   The present invention can be applied to all tool processing apparatuses that process a workpiece by changing the direction of the cutting direction of the tool using a planar machine tool or the like.

この発明を適用したプレーナ型工作機械を示す概要正面図。1 is a schematic front view showing a planar machine tool to which the present invention is applied. 図1の右側面図。The right view of FIG. 図2のA−A線による一部拡大詳細断面図。The partially expanded detailed sectional view by the AA line of FIG. 図3のB−B線による一部拡大詳細断面図。FIG. 4 is a partially enlarged detail cross-sectional view taken along line BB in FIG. 3. この発明のバイト加工方法を説明するための要部拡大側面図であり、(イ)は往動加工直前の状態、(ロ)は復動加工直前の状態を示す。It is a principal part expanded side view for demonstrating the bite processing method of this invention, (A) shows the state just before forward machining, (B) shows the state just before backward machining. (イ)は図5(イ)を、(ロ)は図5(ロ)を左から見た図。FIG. 5A is a view of FIG. 5A, and FIG. 5B is a view of FIG. 5B viewed from the left.

符号の説明Explanation of symbols

10 ベッド
11 テーブル
12 真空チャック
13 ワーク
13A 加工溝
14 コラム
15 クロスレール
16 サドル
17 昇降台
18 サーボモータ
19 バイト回転台
20 主軸(C軸)(回転軸)
21 サーボモータ
22 十字継手(調芯手段)
22A、22B 突起
23 バイトホルダ
24 ボルト
25、26 溝
27、28 調整ねじ
29 溝
30 バイト
30A バイトの頂点
31 押え板
32 ボルト。
10 bed 11 table 12 vacuum chuck 13 work 13A machining groove 14 column 15 cross rail 16 saddle 17 lifting platform 18 servo motor 19 bite rotary table 20 spindle (C axis) (rotating axis)
21 Servo motor 22 Cross joint (alignment means)
22A, 22B Projection 23 Tool holder 24 Bolt 25, 26 Groove 27, 28 Adjusting screw 29 Groove 30 Tool 30A Tool tip 31 Presser plate 32 Bolt

Claims (1)

微細な多数の溝を加工するためのバイトを用いて前記バイトの切削方向の向きを変えてワークを加工するバイト加工装置において、
往復動を可能に駆動されるテーブルと、
前記バイトの切削方向の向きを変化可能に該バイトを取り付けるための回転軸と、
この回転軸の先端に前記バイトを着脱可能に取り付けるためのバイトホルダと、
このバイトホルダと前記回転軸との間に設けられ前記バイトの切れ刃部を前記回転軸の軸芯上に位置付けするため、上下の面に互いに直行する突起を有する十字継手の調芯手段と、
を備え前記ワークに対する前記回転軸の位置を制御して、前記微細な多数の溝の加工を行うことを特徴とするバイト加工装置。
In a cutting tool for processing a workpiece by changing the direction of the cutting direction of the cutting tool using a cutting tool for processing a large number of fine grooves ,
A table driven to reciprocate, and
A rotating shaft for attaching the cutting tool such that the cutting direction of the cutting tool can be changed;
A bite holder for removably attaching the bite to the tip of the rotating shaft;
An alignment means for a cruciform joint having protrusions perpendicular to each other on the upper and lower surfaces in order to position the cutting edge portion of the tool on the axis of the rotary shaft, provided between the tool holder and the rotary shaft;
And a tool for processing the fine grooves by controlling the position of the rotating shaft with respect to the workpiece.
JP2006310912A 2006-11-17 2006-11-17 Bite processing equipment Active JP5016898B2 (en)

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Application Number Priority Date Filing Date Title
JP2006310912A JP5016898B2 (en) 2006-11-17 2006-11-17 Bite processing equipment
TW096143221A TWI332423B (en) 2006-11-17 2007-11-15 Method and apparatus for machining work by cutting tool
KR1020070117134A KR20080045069A (en) 2006-11-17 2007-11-16 Method and apparatus for machining work by cutting tool
US11/941,454 US20080118323A1 (en) 2006-11-17 2007-11-16 Method and apparatus for machining work by cutting tool
CN201110394115.XA CN102744451B (en) 2006-11-17 2007-11-19 Method and apparatus for machining work by cutting tool
CN2007103003675A CN101219519B (en) 2006-11-17 2007-11-19 Method and apparatus for machining work by cutting tool
KR1020090036079A KR100948445B1 (en) 2006-11-17 2009-04-24 Method and apparatus for machining work by cutting tool
KR1020090036073A KR100948444B1 (en) 2006-11-17 2009-04-24 Method and apparatus for machining work by cutting tool

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6354485B2 (en) * 1984-01-25 1988-10-28 Makino Furaisu Seisakusho Kk
JP3306106B2 (en) * 1992-07-29 2002-07-24 株式会社ミツトヨ Centering device for rotating object holder

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