JPH0663810A - Method for grooving metal mold - Google Patents

Method for grooving metal mold

Info

Publication number
JPH0663810A
JPH0663810A JP23888292A JP23888292A JPH0663810A JP H0663810 A JPH0663810 A JP H0663810A JP 23888292 A JP23888292 A JP 23888292A JP 23888292 A JP23888292 A JP 23888292A JP H0663810 A JPH0663810 A JP H0663810A
Authority
JP
Japan
Prior art keywords
groove
mold
cutter
shaped
cutting edge
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.)
Pending
Application number
JP23888292A
Other languages
Japanese (ja)
Inventor
Toyoji Mizoguchi
豊治 溝口
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NIPPON FURENERU KK
Original Assignee
NIPPON FURENERU KK
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by NIPPON FURENERU KK filed Critical NIPPON FURENERU KK
Priority to JP23888292A priority Critical patent/JPH0663810A/en
Publication of JPH0663810A publication Critical patent/JPH0663810A/en
Pending legal-status Critical Current

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Abstract

PURPOSE:To provide a method for grooving a metal mold by which a groove having a highly accurate V-shaped cross section can on be efficiently formed on the curved surface of the metal mold. CONSTITUTION:A mold material 12 of a metal mold of a Fresnel lens whose external shape has already been subjected to prefinishing is fixedly positioned on the table 24 of a five-axle numerically controlled machining center 20. The curved portion of the mold material 12 is machined by a ball end mill. The ball end mill is removed from a main shaft 26, and a cutter 32 is attached thereto instead. A V-shaped cutting edge 30 having an angle of alpha is fixed to the cutter 32. The cutter 32 is then operated under control of an NC program which previously made the numerically controlled machining center 20. V-shaped grooves 14 are machined while the table 24 is moved in such a way that the direction I of the tangent of a rotational circle E of the cutting edge 30 is aligned with the direction H of the tangent of a bottom 14A of the V-shaped groove 14 made on the mold material 12.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】本発明は、自動車のテールランプ
やストップランプ等に適用されるフレネルレンズを製造
する場合に使用される金型の溝形成方法に関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for forming a groove in a mold used for manufacturing a Fresnel lens applied to a tail lamp, a stop lamp or the like of an automobile.

【0002】[0002]

【従来の技術】透明樹脂板の一面を平面状平滑面に加工
し、他面にピッチ0.3ミリメートル乃至1ミリメート
ルの間隔で断面逆V字状の突起を同心円状に配設した形
状のものが、フレネルレンズの一般的なものである。こ
のフレネルレンズは球面で作られた一般のレンズと同様
に光線の集光作用,発散作用等を持つことから、近年フ
レネルレンズを自動車のテールランプ,ストップランプ
等に使用して自動車の照明効果の向上に役立ている。ま
た、フレネルレンズの薄さ、軽さから自動車の軽量化に
貢献している。従来、多く使用されている平板状フレネ
ルレンズの製造に使用される金型は同心円状の断面V字
状のV字状溝を平面的に形成した単純な形状であるから
金型を製作する場合は旋盤の回転主軸に金型の型材を固
定し、V字状の刃先のバイトを所定の角度に傾けて加工
することにより容易に金型の型材に前記V字状溝を形成
することができた。また、V字状の刃先のバイトにダイ
ヤモンドの刃先を使用すれば、V字状溝の加工表面の精
度は格段に向上し、V字状溝の表面粗度を0.4S乃至
0.1S程度にでき、フレネルレンズの金型としては十
分な面粗度を持った前記V字状溝を形成することができ
た。ところで、最近自動車の外観が重要視され、曲線を
多用したデザインが流行するに従い自動車灯器用として
のフレネルレンズの型も車体のカーブに合わせた曲面状
のものが要求されるようになった。このため、図4に示
すような三次元のカーブを持つ曲面上に断面V字状のV
字状溝(14)を設けたフレネルレンズの金型(F)が
要望されるようになってきた。曲面上にV字状溝を設け
たフレネルレンズ用の金型製作には5軸の数値制御工作
機械を使用し、図3に示すように超硬合金製の円錐形エ
ンドミル(10)を回転させて金型の型材(12)に断
面V字状のV字状溝(14)を切削して、三次元曲面上
に所定の角度のV字状溝(14)を切削形成する方法が
考えられている。この切削方法によると5軸数値制御工
作機械で曲面上に所定の角度を持ったV字状溝(14)
を切削することは可能である。しかし、前記円錐形エン
ドミル(10)は円錐形状であるため円錐形状からくる
制約の宿命により円錐形エンドミル(10)を高速回転
させても円錐形エンドミル(10)の先端部(10A)
の周速度は遅く適正な切削速度が得られない。その結
果、円錐形エンドミル(10)の先端部(10A)の摩
耗は著しくなって切削不能になり、円錐形エンドミル
(10)の交換を頻繁に行わなければならず、作業が煩
雑になると共に作業効率が低下するという不具合があ
る。また、前記V字状溝(14)の加工表面は円錐形エ
ンドミル(10)で加工された特有の切削痕のために粗
くなり光学的な見地からフレネルレンズの金型の溝の表
面精度としては不十分であった。
2. Description of the Related Art A transparent resin plate having one surface processed into a flat smooth surface and the other surface having concentric circular protrusions having an inverted V-shaped cross-section at intervals of 0.3 mm to 1 mm. However, it is a common type of Fresnel lens. Since this Fresnel lens has a light condensing function and a diverging function similar to a general lens made of a spherical surface, the Fresnel lens has recently been used for a tail lamp, a stop lamp, etc. of an automobile to improve the illumination effect of the automobile. Is useful for. In addition, the thinness and lightness of the Fresnel lens contributes to the weight reduction of automobiles. Conventionally, a die used for manufacturing a plate-shaped Fresnel lens that is often used has a simple shape in which a concentric V-shaped groove having a V-shaped cross section is formed on a plane. Can fix the V-shaped groove on the mold material by fixing the mold material to the rotating main shaft of the lathe and inclining the V-shaped cutting tool with a predetermined angle. It was If a diamond cutting edge is used for the V-shaped cutting edge, the accuracy of the V-shaped groove processing surface is significantly improved, and the surface roughness of the V-shaped groove is about 0.4S to 0.1S. It was possible to form the V-shaped groove having a sufficient surface roughness as the mold of the Fresnel lens. By the way, recently, the appearance of automobiles has been regarded as important, and with the trend of designs using many curves, Fresnel lens molds for automobile lighting have also been required to have curved surfaces conforming to the curves of the vehicle body. Therefore, a V-shaped V-shaped cross-section is formed on a curved surface having a three-dimensional curve as shown in FIG.
A mold (F) for a Fresnel lens provided with a groove (14) has been demanded. A 5-axis numerically controlled machine tool was used to manufacture a mold for a Fresnel lens having a V-shaped groove on a curved surface, and a conical end mill (10) made of cemented carbide was rotated as shown in FIG. A method is conceivable in which a V-shaped groove (14) having a V-shaped cross section is cut in a die material (12) of a metal mold to form a V-shaped groove (14) at a predetermined angle on a three-dimensional curved surface. ing. According to this cutting method, a V-shaped groove (14) having a predetermined angle on a curved surface is formed on a 5-axis numerically controlled machine tool.
It is possible to cut. However, since the conical end mill (10) has a conical shape, even if the conical end mill (10) is rotated at a high speed due to the conspicuous fate of the conical shape, the tip end portion (10A) of the conical end mill (10).
The peripheral speed is slow and an appropriate cutting speed cannot be obtained. As a result, the tip end portion (10A) of the conical end mill (10) is significantly worn out and cannot be cut, and the conical end mill (10) needs to be replaced frequently, which complicates the work. There is a problem that efficiency is reduced. Further, the surface of the V-shaped groove (14) is roughened due to a unique cutting mark processed by the conical end mill (10), and from the optical point of view, the surface precision of the groove of the mold of the Fresnel lens is It was insufficient.

【0003】[0003]

【発明が解決しようとする課題】本発明は上記の不都合
を解消すべく開発されたものであり、金型の曲面上に精
度の高い断面V字状の溝を効率良く形成することができ
る金型の溝形成方法を提供することを目的とするもので
ある。
SUMMARY OF THE INVENTION The present invention was developed to eliminate the above-mentioned inconveniences, and it is possible to efficiently form a groove having a V-shaped cross section with high accuracy on the curved surface of the die. It is an object of the present invention to provide a groove forming method for a mold.

【0004】[0004]

【課題を解決するための手段】請求項1の発明は、三次
元に変化する曲面上に断面V字状の溝を形成するフレネ
ルレンズの金型加工において、金型に形成される前記溝
の底部の接線方向と回転するカッター切刃先端の接線方
向とを同一方向に一致させながら前記溝を切削形成する
ことを特徴としている。
According to a first aspect of the present invention, in a die machining of a Fresnel lens in which a groove having a V-shaped cross section is formed on a curved surface that changes three-dimensionally, the groove formed in the die is The groove is formed by cutting while the tangential direction of the bottom portion and the tangential direction of the tip of the rotating cutter blade are aligned in the same direction.

【0005】[0005]

【作用】請求項1の発明によれば、5軸の数値制御マシ
ニングセンターのフレネルレンズの金型の型材が載置さ
れるテーブルは、テーブル傾斜方向,テーブル旋回方
向,テーブル左右方向に移動及び制御が可能になってい
る。一方、主軸は、上下方向及び回転軸線方向に沿った
前後方向に移動及び制御が可能となっている。前記5軸
の数値制御マシニングセンターの主軸にカッター切刃を
有するカッターを取り付け、5軸の数値制御マシニング
センターを作動させることにより、前記カッター切刃は
回転する。そして、フレネルレンズの金型の型材を三次
元に移動させながら型材に形成されるV字状溝の底部の
接線方向と回転するカッター切刃の接線方向とを同一方
向に一致させながらV字状溝を切削形成する。
According to the invention of claim 1, the table on which the mold material of the Fresnel lens mold of the 5-axis numerically controlled machining center is placed can be moved and controlled in the table tilt direction, the table turning direction, and the table left-right direction. It is possible. On the other hand, the main shaft can be moved and controlled in the vertical direction and the front-back direction along the rotation axis direction. By attaching a cutter having a cutter cutting edge to the main axis of the 5-axis numerically controlled machining center and operating the 5-axis numerically controlled machining center, the cutter cutting edge is rotated. Then, while moving the mold material of the mold of the Fresnel lens three-dimensionally, the tangential direction of the bottom of the V-shaped groove formed in the mold material and the tangential direction of the rotating cutter cutting edge are made to coincide with each other in the V-shape. Cut and form a groove.

【0006】[0006]

【実施例】図1及び図2には、本発明に係る金型の溝形
成方法の一実施例が示されている。この実施例では公知
の5軸の数値制御マシニングセンターの横軸タイプのも
のが使用されている。曲面状の金型の型材に形成されな
ければならないV字状溝(14)のXYZ位置と角度の
関係は、V字状溝(14)の相対する溝形成面(14
A)の角度αとフレネルレンズの材質の屈折率の値から
光学的な関係式を交えた計算により、XYZ座標位置と
溝形成面(14A)の法線の方向余弦とV字状溝(1
4)の底部(14B)の接線方向(H)の方向余弦とし
て求めることができる。上記計算で得られたXYZ座標
点をカッター切刃(30)の先端(30B)が回転切削
加工するとき、カッター切刃(30)の溝形成面(30
A)の傾きが溝形成面(14A)と同一になる様に、又
カッター切刃(30)の先端(30B)の加工点の接線
(I)がV字状溝(14)の底部(14B)の接線方向
(H)と同じ傾斜になる様に計算し、5軸の運動に変換
してNCプログラムを作成し、紙テープ又はフロッピー
ディスク等に記録して置く。5軸の運動に変換する際の
計算式には、カッター切刃(30)の溝形成面(30
A)が回転軸(34)となす傾斜角βと、カッター切刃
(30)の先端(30B)と回転軸(34)間の距離
(R)を考慮に入れることは勿論である。図1に示すよ
うに前記5軸の数値制御マシニングセンター(20)の
フレネルレンズの金型の型材(12)が載置されるテー
ブル(24)は、テーブル傾斜方向(矢印A方向),テ
ーブル旋回方向(矢印B方向),テーブル左右方向(矢
印X方向)に移動及び制御が可能になっている。一方、
前記5軸の数値制御マシニングセンター(20)の主軸
(26)は、上下方向(矢印Y方向),回転軸線方向に
沿った前後方向(矢印Z方向)に移動及び制御が可能と
なっている。次に、前記テーブル(24)の上の所定位
置に曲面部のみ数ミリメートル多く肉厚を残して外形前
加工を終了したフレネルレンズの金型の型材(12)を
適宜固定手段を介して固定する。そして、公知のボール
エンドミル(図示せず)を前記主軸(26)に固定し、
型材(12)の曲面部をできる限り滑らかに、かつ仕上
寸法より0.1ミリメートル厚く切削加工する。前記ボ
ールエンドミルによる曲面の前加工が終了したら、ボー
ルエンドミルを主軸(26)から取り外してカッター切
刃(30)を有するカッター(32)を主軸(26)に
取り付ける。図2に示すようにこのカッター(32)の
円柱形状の回転軸(34)の先端部にはカッターシャン
ク(36)が固定されている。このカッターシャンク
(36)の先端部には角度αのV字状のカッター切刃
(30)が固着されている。従って、前記回転軸(3
4)が回転することによりカッター切刃(30)は回転
円(E)を描くことになる。なお、図1にはカッター切
刃(30)の回転円(E)の接線方向(I)を示す。前
記カッター切刃(30)の溝形成面(30A)と溝形成
面(30A)との角度αは設定された55度になるよう
に研磨されている。また、前記カッターシャンク(3
6)を前記回転軸(34)に取り付ける場合は、回転軸
(34)の軸線方向に対し前記カッター切刃(30)の
溝形成面(30A)の傾斜角度βは60度となるように
取り付ける。更に、カッター切刃(30)の先端(30
B)と回転軸(34)との距離Rの寸法は設定された寸
法にする。また、カッター切刃(30)の掬い面(30
C)がカッター回転面(E)と垂直になるようにカッタ
ー切刃(30)は取り付けられなければならない。そし
て、前記5軸の数値制御マシニングセンター(20)の
主軸(26)にカッター(32)を取り付けたら数値制
御マシニングセンター(20)を予め作成した前記NC
プログラムで制御作動させる。これにより、前記回転軸
(34)が回転してカッター切刃(30)が回転円
(E)を描く。そして、カッター切刃(30)の回転円
(E)の接線方向(I)に型材(12)に形成されるV
字状溝(14)の底部(14A)の接線方向(H)が一
致するように前記テーブル(24)を移動させながら型
材(12)にカッター切刃(30)でV字状溝(14)
を切削加工する。この切削加工の条件は、0.5ミリメ
ートルピッチの溝幅で、V字状溝(14)の加工深さは
0.69ミリメートルで同一溝を3回に分けて切削加工
し、この場合カッター(32)の回転数は毎分3,20
0回転、送り速度は3回とも毎分130ミリメートル
で、切込量は1回目と2回目が共に0.26ミリメート
ル,3回目は0.17ミリメートルに設定した。上記切
削条件で本発明の金型の溝形成方法を行った場合、80
ミリメートル×100ミリメートルの曲面上に切削加工
した加工時間は6時間30分であり、従来の加工方法と
比較すると約2時間の短縮となり、V字状溝(14)の
形成時間を大幅に短縮することができる。また、V字状
溝(14)の加工面の表面精度については従来の加工方
法では最良の表面精度の場合で10S程度であったが、
本発明では0.8S乃至3Sの表面精度が得られ、本発
明を利用して製造された金型で成形されたフレネルレン
ズの光の透過性能、反射性能は格段に優れ、質の向上を
図ることができる。
1 and 2 show an embodiment of a method for forming a groove in a mold according to the present invention. In this embodiment, a known 5-axis numerical control machining center of the horizontal axis type is used. The relationship between the XYZ position and the angle of the V-shaped groove (14) that has to be formed in the mold material of the curved-shape mold is that the groove forming surface (14) of the V-shaped groove (14) facing each other is different.
From the angle α of A) and the value of the refractive index of the material of the Fresnel lens, an optical relational expression is calculated, and the XYZ coordinate position, the direction cosine of the normal to the groove forming surface (14A), and the V-shaped groove (1
It can be obtained as the direction cosine in the tangential direction (H) of the bottom portion (14B) of 4). When the tip (30B) of the cutter cutting edge (30) performs rotary cutting processing on the XYZ coordinate points obtained by the above calculation, the groove forming surface (30) of the cutter cutting edge (30).
A) the inclination is the same as the groove forming surface (14A), and the tangent (I) of the machining point of the tip (30B) of the cutter cutting blade (30) is the bottom (14B) of the V-shaped groove (14). The calculation is performed so that the inclination becomes the same as the tangential direction (H), and the NC program is created by converting the motion into five axes and recorded on a paper tape or a floppy disk. The calculation formula when converting to the movement of 5 axes is the groove forming surface (30) of the cutter cutting edge (30).
It goes without saying that the inclination angle β formed by A) with the rotation axis (34) and the distance (R) between the tip (30B) of the cutter cutting blade (30) and the rotation axis (34) are taken into consideration. As shown in FIG. 1, the table (24) on which the mold material (12) of the Fresnel lens mold of the 5-axis numerically controlled machining center (20) is placed is a table tilt direction (arrow A direction), a table turning direction. It is possible to move and control the table (direction of arrow B) and the left and right direction of the table (direction of arrow X). on the other hand,
The main shaft (26) of the 5-axis numerical control machining center (20) can be moved and controlled in the up-down direction (arrow Y direction) and in the front-rear direction along the rotation axis direction (arrow Z direction). Next, the mold material (12) of the Fresnel lens mold for which the outer shape pre-processing has been completed is fixed to a predetermined position on the table (24) by leaving a thick wall only for the curved surface part by appropriate fixing means. . Then, a known ball end mill (not shown) is fixed to the main shaft (26),
The curved surface of the mold material (12) is cut as smoothly as possible and 0.1 mm thicker than the finished size. When the pre-processing of the curved surface by the ball end mill is completed, the ball end mill is removed from the spindle (26) and a cutter (32) having a cutter cutting edge (30) is attached to the spindle (26). As shown in FIG. 2, a cutter shank (36) is fixed to the tip of the cylindrical rotation shaft (34) of the cutter (32). A V-shaped cutter cutting edge (30) having an angle α is fixed to the tip of the cutter shank (36). Therefore, the rotary shaft (3
The rotation of (4) causes the cutter cutting edge (30) to draw a rotation circle (E). It should be noted that FIG. 1 shows the tangential direction (I) of the rotating circle (E) of the cutter cutting edge (30). The angle α between the groove forming surface (30A) of the cutter cutting blade (30) and the groove forming surface (30A) is polished so as to be set to 55 degrees. Also, the cutter shank (3
When 6) is attached to the rotary shaft (34), the inclination angle β of the groove forming surface (30A) of the cutter cutting blade (30) is 60 degrees with respect to the axial direction of the rotary shaft (34). . Furthermore, the tip (30) of the cutter cutting blade (30)
The dimension of the distance R between B) and the rotating shaft (34) is set to the set dimension. Also, the scooping surface (30) of the cutter cutting blade (30)
The cutter cutting edge (30) must be mounted so that C) is perpendicular to the plane of rotation of the cutter (E). Then, when the cutter (32) is attached to the main shaft (26) of the 5-axis numerical control machining center (20), the numerical control machining center (20) is created in advance.
Controlled by a program. As a result, the rotating shaft (34) rotates and the cutter cutting edge (30) draws a rotating circle (E). Then, V formed on the mold material (12) in the tangential direction (I) of the rotation circle (E) of the cutter cutting edge (30).
While moving the table (24) so that the tangential direction (H) of the bottom (14A) of the V-shaped groove (14) is aligned, the V-shaped groove (14) is formed on the mold material (12) by the cutter cutting blade (30).
To cut. The conditions for this cutting are a groove width of 0.5 mm pitch, the V-shaped groove (14) has a processing depth of 0.69 mm, and the same groove is cut in three steps. 32) rotation speed is 3,20 per minute
The rotation speed was 0, the feed rate was 130 mm / min for all three times, and the cutting depth was set to 0.26 mm for both the first and second times and 0.17 mm for the third time. When the die groove forming method of the present invention is performed under the above cutting conditions, 80
The processing time for cutting on a curved surface of mm × 100 mm is 6 hours and 30 minutes, which is about 2 hours shorter than the conventional processing method, and the time for forming the V-shaped groove (14) is significantly shortened. be able to. Further, the surface accuracy of the processed surface of the V-shaped groove (14) was about 10 S in the case of the best surface accuracy in the conventional processing method.
In the present invention, the surface accuracy of 0.8S to 3S is obtained, and the Fresnel lens molded by the mold manufactured by using the present invention has remarkably excellent light transmission performance and reflection performance, and the quality is improved. be able to.

【0007】なお、この実施例では型材(12)として
はリン青銅を使用したが、型材(12)としてはリン青
銅に限定されないことは勿論である。また、この実施例
ではカッター切刃(20)の材質をダイヤモンドとした
が、ダイヤモンドに限定されいことは勿論である。
In this embodiment, phosphor bronze was used as the mold material (12), but it goes without saying that the mold material (12) is not limited to phosphor bronze. Further, although the material of the cutter cutting edge (20) is diamond in this embodiment, it is needless to say that the material is not limited to diamond.

【0008】[0008]

【発明の効果】以上説明したように、本発明の金型の溝
形成方法によれば、金型の曲面上に精度の高い断面V字
状の溝を効率良く形成することができるという優れた効
果を有する。
As described above, according to the method for forming a groove of a mold of the present invention, it is possible to efficiently form a groove having a V-shaped cross section with high accuracy on the curved surface of the mold. Have an effect.

【図面の簡単な説明】[Brief description of drawings]

【図1】本発明に係る金型の溝形成方法の一実施例を示
す作用説明図である。
FIG. 1 is an operation explanatory view showing an embodiment of a groove forming method of a mold according to the present invention.

【図2】本発明に係る金型の溝形成方法に使用されるカ
ッターの全体斜視図である。
FIG. 2 is an overall perspective view of a cutter used in the groove forming method of the mold according to the present invention.

【図3】従来の金型の溝形成方法の一実施例を示す作用
説明図である。
FIG. 3 is an operation explanatory view showing an embodiment of a conventional die groove forming method.

【図4】溝が形成されたフレネルレンズの金型の一部拡
大図である。
FIG. 4 is a partially enlarged view of a Fresnel lens mold in which grooves are formed.

【符号の説明】[Explanation of symbols]

(12)・・・型材 (20)・・・数値制御マシニングセンター (30)・・・カッター切刃 (32)・・・カッター (12) ・ ・ ・ Shape (20) ・ ・ ・ Numerical control machining center (30) ・ ・ ・ Cutter cutting blade (32) ・ ・ ・ Cutter

Claims (1)

【特許請求の範囲】[Claims] 【請求項1】 三次元に変化する曲面上に断面V字状の
溝を形成するフレネルレンズの金型加工において、金型
に形成される前記溝の底部の接線方向と回転するカッタ
ー切刃先端の接線方向とを同一方向に一致させながら前
記溝を切削形成することを特徴とする金型の溝形成方
法。
1. A cutter cutting blade tip that rotates with a tangential direction of the bottom of the groove formed in the mold in the mold processing of a Fresnel lens in which a groove having a V-shaped cross section is formed on a curved surface that changes three-dimensionally. A method for forming a groove in a mold, wherein the groove is formed by cutting while making the tangential direction of the groove coincide with the same direction.
JP23888292A 1992-08-14 1992-08-14 Method for grooving metal mold Pending JPH0663810A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP23888292A JPH0663810A (en) 1992-08-14 1992-08-14 Method for grooving metal mold

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP23888292A JPH0663810A (en) 1992-08-14 1992-08-14 Method for grooving metal mold

Publications (1)

Publication Number Publication Date
JPH0663810A true JPH0663810A (en) 1994-03-08

Family

ID=17036672

Family Applications (1)

Application Number Title Priority Date Filing Date
JP23888292A Pending JPH0663810A (en) 1992-08-14 1992-08-14 Method for grooving metal mold

Country Status (1)

Country Link
JP (1) JPH0663810A (en)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100413233B1 (en) * 2001-01-31 2003-12-31 이득우 An algorithm with a program for avoiding interference during a phase reverse of table rotating/tilting type 5-axis milling
KR100435331B1 (en) * 2001-08-14 2004-06-10 현대자동차주식회사 Jig for milling machine
KR100845536B1 (en) * 2000-12-11 2008-07-10 다이니폰 인사츠 가부시키가이샤 Working method of die for use for fresnel lens, die worked through execution of the working method, and fresnel lens worked from the die
CN101774040A (en) * 2010-03-08 2010-07-14 胡建军 Indexing slotter
KR100977909B1 (en) * 2008-12-05 2010-08-24 이태경 Control machining apparatus based on auto generated coordinate
WO2012060455A1 (en) * 2010-11-05 2012-05-10 川並鉄工株式会社 Image display panel, image display panel installation equipment, and method for producing image display panel
CN103170874A (en) * 2013-03-29 2013-06-26 常熟市红洲模具有限公司 Glass mold bottom mold anti-explosion line machining device and machining method thereof
CN103302344A (en) * 2013-05-29 2013-09-18 广州导新模具注塑有限公司 Cutter for machining Fresnel patterns and manufacture method of cutter
JP2016180871A (en) * 2015-03-24 2016-10-13 矢崎総業株式会社 Optical device
CN106181688A (en) * 2016-07-14 2016-12-07 常州湖南大学机械装备研究院 A kind of method for grinding of Fresnel Lenses mould
WO2019117434A1 (en) * 2017-12-15 2019-06-20 엠피닉스 주식회사 Fresnel lens producing mold and manufacturing method therefor

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100845536B1 (en) * 2000-12-11 2008-07-10 다이니폰 인사츠 가부시키가이샤 Working method of die for use for fresnel lens, die worked through execution of the working method, and fresnel lens worked from the die
KR100413233B1 (en) * 2001-01-31 2003-12-31 이득우 An algorithm with a program for avoiding interference during a phase reverse of table rotating/tilting type 5-axis milling
KR100435331B1 (en) * 2001-08-14 2004-06-10 현대자동차주식회사 Jig for milling machine
KR100977909B1 (en) * 2008-12-05 2010-08-24 이태경 Control machining apparatus based on auto generated coordinate
CN101774040A (en) * 2010-03-08 2010-07-14 胡建军 Indexing slotter
US9235997B2 (en) 2010-11-05 2016-01-12 Kawanami Ironworks Inc. Image display panel, image display panel installation equipment, and manufacturing method for image display panel
JP5282171B2 (en) * 2010-11-05 2013-09-04 川並鉄工株式会社 Image display panel, image display panel installation equipment, and method of manufacturing image display panel
WO2012060455A1 (en) * 2010-11-05 2012-05-10 川並鉄工株式会社 Image display panel, image display panel installation equipment, and method for producing image display panel
CN103170874A (en) * 2013-03-29 2013-06-26 常熟市红洲模具有限公司 Glass mold bottom mold anti-explosion line machining device and machining method thereof
CN103302344A (en) * 2013-05-29 2013-09-18 广州导新模具注塑有限公司 Cutter for machining Fresnel patterns and manufacture method of cutter
JP2016180871A (en) * 2015-03-24 2016-10-13 矢崎総業株式会社 Optical device
US10061126B2 (en) 2015-03-24 2018-08-28 Yazaki Corporation Optical device
CN106181688A (en) * 2016-07-14 2016-12-07 常州湖南大学机械装备研究院 A kind of method for grinding of Fresnel Lenses mould
WO2019117434A1 (en) * 2017-12-15 2019-06-20 엠피닉스 주식회사 Fresnel lens producing mold and manufacturing method therefor

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