JP2000140977A - Pressed article, electrode of electron gun, and press forming method - Google Patents
Pressed article, electrode of electron gun, and press forming methodInfo
- Publication number
- JP2000140977A JP2000140977A JP10313176A JP31317698A JP2000140977A JP 2000140977 A JP2000140977 A JP 2000140977A JP 10313176 A JP10313176 A JP 10313176A JP 31317698 A JP31317698 A JP 31317698A JP 2000140977 A JP2000140977 A JP 2000140977A
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- Prior art keywords
- opening
- mold
- coining
- concave portion
- press
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Abstract
Description
【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION
【０００１】[0001]
【発明の属する技術分野】本発明は、例えば電子銃の電
極として使用するプレス部品等のプレス成形物、及びそ
のプレス成形方法、特に圧印加工（コイニング）方法に
関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a press-formed product such as a press part used as an electrode of an electron gun, and a press-forming method thereof, and more particularly, to a coining method.
【従来の技術】一般的に、プレス部品の圧印加工方法
は、母材である金属板に圧印パンチを押し付け、金型と
同じ形状を作る方法である。もともと板厚の調整や圧印
開口端部の割れ防止、形状修正を目的として使用するこ
とが多く、圧印加工部の寸法、開口端部のアール形状
（いわゆるＲ形状）については、圧印パンチの押し出し
量、母材の硬度等の影響を受け易くコントロールが難し
い状況であった。2. Description of the Related Art In general, a stamping method for a pressed part is a method in which a stamping punch is pressed against a metal plate as a base material to form the same shape as a die. Originally, it is often used for the purpose of adjusting the plate thickness, preventing cracks at the end of the coining opening, and correcting the shape. For the dimensions of the coining part and the round shape of the opening end (so-called R shape), the extrusion amount of the coining punch However, the control was difficult due to the influence of the hardness of the base material.
【０００２】図１０は、従来の一般的な圧印加工方法を
示す。図１０Ａに示すように、印圧工程が必要とされる
板厚ｔ1 のプレス用母材、いわゆる金属板１を圧印パン
チ２を使用して必要な圧印板厚ｔ2 が得られるまで繰り
返し加圧して（必要条件により複数回繰り返し実施す
る）開口３を有する凹型部４を形成する。印圧パンチ２
としては、例えば角型断面のものを使用することができ
る。FIG. 10 shows a conventional general coining method. As shown in FIG. 10A, a pressing base material having a thickness t 1 , which requires a printing pressure step, that is, a so-called metal plate 1 is repeatedly applied using a coining punch 2 until a required stamping plate thickness t 2 is obtained. The concave portion 4 having the opening 3 is formed by pressing (repeated plural times according to necessary conditions). Printing pressure punch 2
For example, those having a square cross section can be used.
【０００３】次に、図１０Ｂに示すように、圧印の仕上
げ段階において、圧印開口３の端部３ａの割れ防止、形
状修正のために、通常、台形型断面の仕上げ印圧パンチ
５を用いて加圧し、凹型部４の底部幅Ｗ1 よりも開口部
の幅Ｗ2 が広くなるような、いわゆる逆ハの字状の開口
断面形状３ｂを成形する。Next, as shown in FIG. 10B, in the finishing stage of coining, in order to prevent the end 3a of the coining opening 3 from cracking and to correct the shape, a finishing stamping punch 5 having a trapezoidal cross section is usually used. pressurized, than the bottom width W 1 of the concave portion 4 as the width W 2 of the opening is widened, forming a shaped opening cross section 3b of the so-called inverted tooth.
【０００４】この仕上げ圧印加工によって、図１０Ｃに
示す断面逆ハの字型の凹型部４が形成されたプレス部品
６が得られる。更に、プレス部品に応じて凹型部４の底
部に鎖線で示す透孔７を形成する。[0004] By this finish coining, a pressed part 6 having a concave portion 4 having an inverted C-shaped cross section as shown in FIG. 10C is obtained. Further, a through hole 7 indicated by a chain line is formed at the bottom of the concave portion 4 in accordance with the pressed part.
【０００５】一方、陰極線管の電子銃を構成する電極と
して用いられるプレス部品では、板状の電極に対して電
子レンズを形成するビーム孔（いわゆる電子ビーム透過
孔）を安定且つ高精度に形成するため、板厚を薄くする
目的で上述のような圧印加工方法が採り入れられてい
る。On the other hand, in a pressed part used as an electrode constituting an electron gun of a cathode ray tube, a beam hole for forming an electron lens (a so-called electron beam transmitting hole) is formed stably and with high precision with respect to a plate-like electrode. Therefore, the coining method as described above has been adopted for the purpose of reducing the plate thickness.
【０００６】図１１は、いわゆる３ガンタイプと呼ばれ
る陰極線管用の電子銃の一例を示す。この電子銃１０
は、赤（Ｒ）、緑（Ｇ）及び青（Ｂ）の３つのカソード
ＫR ，ＫG ，ＫB に対して共通となるように、同軸上に
沿って第１電極１１、第２電極１２、第３電極１３、第
４電極１４、第５電極１５、第６電極１６、第７電極１
７、第８電極１８及びコンバーカップ電極１９が配列さ
れ、第２電極１２と第５電極１５が共通接続され、第３
電極１３と第７電極１７が共通接続され、第４電極１４
と第６電極１６が共通接続されて成る。各第１電極１１
〜コンバーカップ電極１９には、３つのカソードＫR ，
ＫG ，ＫB から出射された各電子ビーム２０Ｒ，２０
Ｇ，２０Ｂが夫々通過するビーム孔（電子ビーム透過
孔）が形成される。また、第２電極１２と第３電極１３
間にプリフォーカス電子レンズが構成され、第７電極１
７と第８電極１８間で主フォーカス電子レンズが構成さ
れる。これら電極群のうち、第１電極１１、第２電極１
２、第５電極１５はいわゆる板状電極として形成され
る。FIG. 11 shows an example of a so-called three gun type electron gun for a cathode ray tube. This electron gun 10
Red (R), green (G) and blue three cathodes K R of (B), K G, so that common to K B, the first electrode 11 along a coaxial, second electrode 12, third electrode 13, fourth electrode 14, fifth electrode 15, sixth electrode 16, seventh electrode 1
7, an eighth electrode 18 and a convertor cup electrode 19 are arranged, and the second electrode 12 and the fifth electrode 15 are connected in common.
The electrode 13 and the seventh electrode 17 are commonly connected, and the fourth electrode 14
And the sixth electrode 16 are connected in common. Each first electrode 11
The three cathodes K R ,
K G, electron beams 20R emitted from K B, 20
Beam holes (electron beam transmission holes) through which G and 20B pass respectively are formed. Also, the second electrode 12 and the third electrode 13
A prefocus electron lens is formed between the seventh electrode 1
A main focus electron lens is formed between the seventh and eighth electrodes 18. Among these electrode groups, the first electrode 11, the second electrode 1
Second, the fifth electrode 15 is formed as a so-called plate-like electrode.
【０００７】図１２は、板状の第２電極１２の構成を示
し、図１３は、その要部の拡大図である。この第２電極
１２は、プレス成形で作製され、各ビーム孔２１［２１
Ｒ，２１Ｇ，２１Ｂ］を形成する領域部に、板厚を薄く
するための凹型部、即ち垂直方向（ｖ方向）の開口幅Ｌ
1 を規制した凹型部２２［２２Ｒ，２２Ｇ，２２Ｂ］が
前述の図１０で示す印圧加工方法で形成され、各凹型部
２２Ｒ，２２Ｇ，２２Ｂの中央底部に各対応するビーム
孔２１［２１Ｒ，２１Ｇ，２１Ｂ］が打抜き加工によっ
て形成される。なお、このビーム孔２１と同時に、電子
銃組立てに使用される位置決め用孔（いわゆるインデッ
クス孔）２３が形成される。２４は透孔である。FIG. 12 shows a configuration of the plate-like second electrode 12, and FIG. 13 is an enlarged view of a main part thereof. The second electrode 12 is manufactured by press molding, and each beam hole 21 [21
R, 21G, 21B], a concave portion for reducing the plate thickness, that is, an opening width L in the vertical direction (v direction).
The concave portions 22 [22R, 22G, 22B], which are restricted by the number 1, are formed by the printing pressure processing method shown in FIG. 10 described above, and the corresponding beam holes 21 [21R, 21R, 22B] are formed at the central bottoms of the concave portions 22R, 22G, 22B. 21G, 21B] are formed by punching. At the same time as the beam hole 21, a positioning hole (so-called index hole) 23 used for assembling the electron gun is formed. 24 is a through hole.
【０００８】[0008]
【発明が解決しようとする課題】ところで、従来の図１
０Ｂに示す台形型断面の仕上げ圧印パンチ５は、圧印開
口端部３ａの割れ防止、形状修正の目的で使用されるた
め、開口部の寸法Ｌ1 、形状、位置精度出しが行えな
い。これらの精度を必要とする仕上げ印圧加工について
は、コントロールが難しく金型の条件出し等による方法
で、時間をかけて精度出しを行っていた。By the way, the conventional FIG.
The finishing coining punch 5 having a trapezoidal cross section shown in FIG. 0B is used for the purpose of preventing the coining opening end 3a from cracking and correcting the shape, so that the dimension L 1 , shape, and positional accuracy of the opening cannot be determined. For the finishing printing pressure processing which requires these precisions, it is difficult to control the precision, and the precision is determined by taking a long time by the method of determining the conditions of the mold.
【０００９】また、仕上げ圧印パンチ５を用いて加工さ
れた圧印開口部３の断面形状は、図１０Ｃに示すよう
に、逆ハの字形状をしており、圧印開口端部３ｂは連続
したアール形状を有している。このため、例えばＣＣＤ
カメラを備えた光学式の測定機を使用して圧印開口寸法
Ｌ1 を測定する場合、光の減衰を引き起し、この部分の
寸法評価は、極めて困難であった。即ち、光学式測定機
を用いて圧印加工された開口の寸法Ｌ1 、形状を測定す
る場合、図１４に示すように、光学式測定機の光学式対
物レンズ１２を通して落射光ｌF を開口端部３ｂに照射
し、開口端部３ｂからの反射光ｌR を対物レンズ１２に
入射し、ＣＣＤカメラの撮影画像を見て測定している。
このとき、開口端部３ｂが連続したアール形状を有して
いるので、対物レンズ１２へ入射すべき反射光ｌR が散
乱（ｌR ′）して少なくなり、開口端部３ｂの視認性を
悪化させていた。Further, as shown in FIG. 10C, the cross-sectional shape of the coining opening 3 processed by using the finishing coining punch 5 is an inverted U-shape, and the coining opening end 3b is a continuous radius. It has a shape. For this reason, for example, CCD
If using measuring optical with a camera to measure the coining opening dimension L 1, cause attenuation of the light, the size evaluation of this section has been extremely difficult. That is, when measuring the dimensions L 1 and the shape of the coined opening using an optical measuring device, as shown in FIG. 14, the incident light 1 F is passed through the optical objective lens 12 of the optical measuring device to the opening end. The portion 3b is irradiated, the reflected light l R from the opening end portion 3b is made incident on the objective lens 12, and the measurement is performed while observing the image captured by the CCD camera.
At this time, since the opening end portion 3b has a continuous round shape, the reflected light l R to be incident on the objective lens 12 is scattered (l R ') and reduced, and the visibility of the opening end portion 3b is reduced. Had worsened.
【００１０】一方、前述した電子銃の電極、例えば図１
１の板状の第２電極１２のプレス成形に際して、ビーム
孔２１の高精度化のために板厚を薄くする目的で圧印加
工方法が採り入れられているが、この凹型部２２の開口
部の仕上げに用いる圧印加工についても、圧印開口端部
の割れ防止、形状修正が主目的であり、開口部の寸法Ｌ
1 、形状、位置出し精度については、重要とされなかっ
た。しかし、近年、画面周辺の解像度が重要である例え
ばコンピュータ用モニタ等の陰極線管に使用される電子
銃においては、特性上、圧印開口端部の寸法Ｌ1 、形
状、位置出し精度が必要とされ、これらの精度劣化は、
電子銃の特性、更には陰極線管の特性に多大な影響を及
ぼすことになった。On the other hand, the electrodes of the aforementioned electron gun, for example, FIG.
At the time of press-forming the first plate-shaped second electrode 12, a coining method is adopted for the purpose of reducing the plate thickness in order to increase the precision of the beam hole 21. The main purpose of the coining process used for the purpose of the present invention is to prevent the end of the coining opening from cracking and to correct the shape.
1. The shape and positioning accuracy were not considered important. However, in recent years, for an electron gun used for a cathode ray tube such as a computer monitor, for example, in which the resolution around the screen is important, the dimension L 1 , shape, and positioning accuracy of the end of the coining opening are required due to its characteristics. , These accuracy degradations
This has a great effect on the characteristics of the electron gun and further on the characteristics of the cathode ray tube.
【００１１】すなわち、第２電極１２は、画像上でビー
ムスポット径を決める大きな役割を果たしており、第２
電極１２の組み立て精度に関して特に厳しさが要求され
ている。陰極線管の性能評価の１つに、ビームスポット
移動検査がある。図１５Ａに示すように、第２電極１２
のビーム孔２１の中心Ｏ1 （電子銃軸に合致しているも
のとする）と圧印開口部２５（即ち凹型部２２）の中心
Ｏ2 とが一致していれば、電子ビームの軌道は正常とな
り、画面上でビームスポットは本来の位置に到達し、ビ
ームスポット移動は生じない。しかし、図１５Ｂに示す
ように、ビーム孔２１の中心Ｏ1 に対して圧印開口部２
５の中心Ｏ2 がずれ、即ち、ビーム孔２１に対してた圧
印凹型部２２が垂直方向にずれて形成された場合には、
第２電極１２と第３電極１３で構成されるプリフォーカ
ス電子レンズの中心が第７電極１７と第８電極１８で構
成される主電子レンズの中心からずれることになり、電
子ビームの軌道が本来の軌道からずれて（いわゆる縦軸
して）、画面上で本来の到達位置よりずれてしまい、ビ
ームスポット移動に大きく影響することが判明した。That is, the second electrode 12 plays a large role in determining a beam spot diameter on an image.
In particular, strictness is required for the assembly accuracy of the electrode 12. One of the performance evaluations of the cathode ray tube is a beam spot movement inspection. As shown in FIG. 15A, the second electrode 12
If the center O 1 of the beam hole 21 (assumed to coincide with the axis of the electron gun) and the center O 2 of the coining opening 25 (that is, the concave portion 22) coincide, the trajectory of the electron beam is normal. , And the beam spot reaches the original position on the screen, and the beam spot does not move. However, as shown in FIG. 15B, the coining opening 2 is positioned with respect to the center O 1 of the beam hole 21.
In the case where the center O 2 of 5 is displaced, that is, the coining concave portion 22 formed with respect to the beam hole 21 is displaced in the vertical direction,
The center of the prefocus electron lens composed of the second electrode 12 and the third electrode 13 is shifted from the center of the main electron lens composed of the seventh electrode 17 and the eighth electrode 18, and the trajectory of the electron beam is originally (Or so-called vertical axis), it was found that it deviated from the original arrival position on the screen, and greatly affected the beam spot movement.
【００１２】また、圧印開口部２２の垂直方向の幅Ｌ1
にバラツキがあると、ビーム径の大きさ（横／縦の比）
に影響を与えることも判明した。例えば、幅Ｌ1 が変化
すれば、画面中心、周辺のそれぞれのビーム径が変わ
る。ビームスポットは、偏向ヨークの偏向磁界を受け画
面周辺で横長に歪むため、これを補正するために、第１
電極１１のビーム孔形状を例えば縦長形状にして予めビ
ームを縦長に歪ませて画面上で円形ビームとなるような
工夫がなされているが、この第２電極１２では、その圧
印凹型部２２の開口幅Ｌ1 の大きさでビーム形状を微調
整する役割も果たしており、開口幅Ｌ1 の寸法精度も必
要であった。Further, the width L 1 of the coining opening 22 in the vertical direction is set.
If there is variation, the beam diameter size (width / height ratio)
It was also found to affect. For example, if the change in the width L 1, the screen center, changes the respective beam diameters around. The beam spot receives the deflection magnetic field of the deflection yoke and is distorted horizontally around the screen.
The beam hole shape of the electrode 11 is made e.g. vertically long so that the beam is distorted in a vertically long manner so that a circular beam is formed on the screen. the beam shape in the size of the width L 1 and also serve to fine-tune, the dimensional accuracy of the opening width L 1 was also required.
【００１３】本発明は、上述の点に鑑み、高精度に圧印
加工されたプレス成形物、電子銃の電極、及びプレス成
形の圧印加工において、寸法、形状の加工精度、位置出
しの精度、寸法評価性の向上と安定化を可能にしたプレ
ス成形方法を提供するものである。The present invention has been made in view of the above-mentioned points, and has been made in consideration of the above points, in a press-formed product, an electrode of an electron gun, and a press-formed press formed by high-precision stamping, dimensions, shape processing accuracy, positioning accuracy, and dimension. An object of the present invention is to provide a press molding method that enables improvement and stabilization of evaluation performance.
【００１４】[0014]
【課題を解決するための手段】本発明のプレス成形物
は、部材に形成された開口の端部が、圧印加工時の開口
外側位置に形成した凹部による肉寄せによって成形され
た構成とする。開口は、凹型部の開口、透孔の開口等を
含むものである。According to the present invention, there is provided a press-formed product in which an end portion of an opening formed in a member is formed by a concave portion formed at a position outside the opening during coining. The opening includes an opening of a concave portion, an opening of a through hole, and the like.
【００１５】このプレス成形物においては、開口端部が
圧印加工時の肉寄せで成形されているので、圧印開口部
の形状、寸法が安定化し、また光学式測定機による開口
端部の視認性も向上する。従って、プレス成形物の高精
度化が図れる。In this press-formed product, since the opening end portion is formed by shifting the thickness at the time of coining, the shape and size of the coining opening portion are stabilized, and the visibility of the opening end portion by an optical measuring device is improved. Also improve. Therefore, the precision of the press-formed product can be improved.
【００１６】本発明のプレス成形物は、部材に形成され
た印圧加工による凹型部の開口端部が、仕上げ圧印加工
時の開口外側位置に形成した凹部による肉寄せによって
成形され、凹型部の底部に透孔が形成された構成とす
る。In the press-formed product of the present invention, the opening end of the concave portion formed by the stamping process formed on the member is formed by moving the concave portion formed at the position outside the opening at the time of the finish stamping process. It has a configuration in which a through hole is formed at the bottom.
【００１７】このプレス成形物においては、凹型部の開
口端部が仕上げ加工時の肉寄せで成形されているので、
圧印開口部の形状、寸法が安定化し、また光学式測定機
による開口端部の視認性も向上する。従って、凹型部
と、凹型部の底部に形成された透孔との位置出しの精度
が向上し、この種のプレス成形物の高精度化が図れる。[0017] In this press-formed product, the opening end of the concave portion is formed by closing at the time of finishing.
The shape and dimensions of the coining opening are stabilized, and the visibility of the opening end by the optical measuring device is also improved. Therefore, the positioning accuracy of the concave portion and the through hole formed at the bottom of the concave portion is improved, and the precision of this type of press-formed product can be improved.
【００１８】本発明の電子銃の電極は、電極部材に形成
された圧印加工による凹型部の開口端部が、仕上げ圧印
加工時の開口外側位置に形成した凹部による肉寄せによ
って成形され、凹型部の底部に電子ビーム透過孔が形成
された構成とする。In the electrode of the electron gun according to the present invention, the opening end of the concave portion formed by stamping formed on the electrode member is formed by shifting the concave portion formed outside the opening at the time of finishing coining to form the concave portion. Has a configuration in which an electron beam transmission hole is formed at the bottom.
【００１９】この電子銃の電極においては、凹型部の開
口端部が仕上げ加工時の肉寄せで成形されているので、
圧印開口部の形状、寸法が安定化し、また光学式測定機
による開口端部の視認性も向上する。従って、電子ビー
ム透過孔と凹型部との位置精度が向上し、電子銃におけ
る電子ビーム軌道の安定化、さらに電子銃特性、ひいて
は陰極線管の特性の安定化が図れる。In the electrode of this electron gun, since the opening end of the concave portion is formed by shifting the thickness at the time of finishing,
The shape and dimensions of the coining opening are stabilized, and the visibility of the opening end by the optical measuring device is also improved. Therefore, the positional accuracy between the electron beam transmitting hole and the concave portion is improved, and the electron beam trajectory in the electron gun can be stabilized, and further, the characteristics of the electron gun and the characteristics of the cathode ray tube can be stabilized.
【００２０】本発明のプレス成形方法は、被成形部材に
開口を形成する工程と、開口幅を決定する金型本体の外
側に突起状型部を一体に有する金型によって被成形部材
に圧印加工を施す工程とを有する。開口は、凹型部の開
口、透孔の開口等を含む。In the press molding method of the present invention, a step of forming an opening in a member to be molded and a stamping process on the member to be molded by a mold integrally having a protruding mold portion outside a mold body for determining an opening width. And a step of applying The opening includes an opening of a concave portion, an opening of a through hole, and the like.
【００２１】このプレス成形方法においては、金型によ
る圧印加工時、金型の突起状型部によって被成形部材が
内方向（即ち開口側の方向）及び下方向に圧縮応力を受
け、肉寄せされて、金型本体に押し付けられて開口幅が
決定される。この圧印加工では、開口端部の形状、幅寸
法が安定して得られ、圧印加工の寸法、形状、位置出し
に必要な工数が削減できる。また、開口端部寸法を光学
式測定機を用いて測定する際、開口部がより鮮明に視認
され、高精度の測定が可能になる。In this press molding method, at the time of coining by the mold, the member to be molded receives compressive stress inward (that is, in the direction of the opening side) and downward by the protruding mold portion of the mold, and the thickness is reduced. Then, the opening width is determined by being pressed against the mold body. In this coining, the shape and width of the opening end can be stably obtained, and the size, shape, and man-hours required for positioning can be reduced. Further, when measuring the size of the opening end using an optical measuring instrument, the opening is more clearly recognized and high-precision measurement is possible.
【００２２】本発明のプレス成形方法は、被成形部材に
圧印加工による凹型部を形成する工程と、凹型部の開口
幅を決定する金型本体の外側に突起状型部を一体に有す
る金型によって被成形部材に仕上げ圧印加工を施す工程
と、凹部の底部に透孔を形成する工程とを有する。The press forming method according to the present invention comprises a step of forming a concave portion by stamping on a member to be molded, and a mold having a projecting mold portion outside a mold body for determining an opening width of the concave portion. And forming a through hole at the bottom of the concave portion.
【００２３】このプレス成形方法においては、金型によ
る仕上げ圧印加工時、金型の突起状型部によって被成形
部材が内方向（開口側の方向）、下方向に圧縮応力を受
け、肉寄せされて、金型本体に押し付けられて凹型部の
開口幅が決定される。即ち、開口端部の形状、寸法を安
定して成形できる。また、開口端部寸法を光学式測定機
を用いて測定する際、、開口端部がより鮮明に視認で
き、高精度の測定が可能となる。従って、凹型部の底部
に形成する透孔と、凹型部の位置精度が向上したプレス
成形物の作製が可能となる。In this press molding method, at the time of finish coining with the mold, the member to be molded receives a compressive stress inward (in the direction of the opening side) and downward by the protruding mold portion of the mold, and is pressed against the surface. Then, the opening width of the concave portion is determined by being pressed against the mold body. That is, the shape and dimensions of the opening end can be formed stably. Also, when measuring the size of the opening end using an optical measuring device, the opening end can be more clearly recognized, and high-precision measurement can be performed. Therefore, it is possible to manufacture a press-formed product in which the through-hole formed at the bottom of the concave portion and the positional accuracy of the concave portion are improved.
【００２４】[0024]
【発明の実施の形態】本発明に係るプレス成形物は、部
材に開口が形成され、この開口端部が、圧印加工時の開
口の外側位置に形成した凹部による肉寄せによって成形
された構成とする。DESCRIPTION OF THE PREFERRED EMBODIMENTS A press-formed product according to the present invention has a structure in which an opening is formed in a member, and the end of the opening is formed by a concave portion formed at a position outside the opening at the time of coining. I do.
【００２５】本発明に係るプレス成形物は、部材に圧印
加工による凹型部が形成され、凹型部の開口端部が、仕
上げ圧印加工時の開口の外側位置に形成した凹部による
肉寄せによって成形され、凹型部の底部に透孔が形成さ
れた構成とする。In the press-formed product according to the present invention, a concave portion is formed on the member by coining, and the opening end of the concave portion is formed by a concave portion formed outside the opening at the time of finishing coining. , A through hole is formed in the bottom of the concave portion.
【００２６】本発明に係る電子銃の電極は、電極部材に
圧印加工による凹型部が形成され、この凹型部の開口端
部が、仕上げ圧印加工時の開口外側位置に形成された凹
部による肉寄せによって成形され、凹型部の底部に電子
ビーム透過孔が形成された構成とする。In the electrode of the electron gun according to the present invention, a concave portion is formed on the electrode member by coining, and the opening end of the concave portion is shifted by a concave portion formed outside the opening at the time of finishing coining. And an electron beam transmitting hole is formed at the bottom of the concave portion.
【００２７】本発明に係るプレス成形方法は、被成形部
材に開口を形成する工程と、開口の幅を決定する金型本
体を有すると共に、この金型本体の外側に肉寄せ用の突
起状型部を一体に設けてなる金型を用いて、被成形部材
に圧印加工を施す工程とを有する。The press molding method according to the present invention has a step of forming an opening in a member to be molded, a mold body for determining the width of the opening, and a projection mold for closing the body on the outside of the mold body. And performing a coining process on the member to be molded by using a mold having a unit integrally provided.
【００２８】上記金型本体は、その金型中心が被成形部
材に形成した開口の中心と略同じで、かつ金型幅が開口
の幅に略等しいか又は開口の幅より小さく設定される。In the mold body, the center of the mold is substantially the same as the center of the opening formed in the member to be molded, and the width of the mold is set to be substantially equal to or smaller than the width of the opening.
【００２９】上記金型の突起状型部は、少なくとも、被
成形部材に形成した開口の端部に変形を与える位置に設
けられる。The protruding mold portion of the mold is provided at least at a position where the end of the opening formed in the member to be molded is deformed.
【００３０】上記金型の突起状型部は、開口の端部を変
形させる形状とする。上記金型の突起状型部は、くさび
形状とすることができる。上記金型の突起状型部は、開
口と同心のリング形状とすることができる。上記金型の
突起状型部は、開口を決定する向い合う辺に沿う形状と
することができる。The protruding mold portion of the mold has a shape that deforms the end of the opening. The protruding mold part of the mold may be wedge-shaped. The protruding mold part of the mold may have a ring shape concentric with the opening. The protruding mold portion of the mold may be shaped along opposing sides that determine the opening.
【００３１】本発明に係るプレス成形方法は、被成形部
材に圧印加工によって凹型部を形成する工程と、この凹
型部の開口幅を決定する金型本体を有すると共に、この
金型本体の外側に肉寄せ用の突起状型部を一体に設けて
なる金型を用いて、被成形部材に仕上げ圧印加工を施す
工程と、凹型部の底部に透孔を形成する工程とを有す
る。The press forming method according to the present invention comprises a step of forming a concave portion on a member to be formed by coining, a mold body for determining an opening width of the concave portion, and a mold body outside the mold body. The method includes a step of performing a final coining process on a member to be molded by using a mold having a projection-like mold portion for integrally moving the body, and a step of forming a through hole in the bottom of the concave mold portion.
【００３２】以下、図面を参照して本発明の実施の形態
を説明する。Hereinafter, embodiments of the present invention will be described with reference to the drawings.
【００３３】図１は、本発明のプレス成形方法、特に圧
印加工方法及びこの方法によって成形されたプレス成形
物の一実施の形態を示す。本実施の形態においては、図
１Ａに示すように、被成形部材、すなわち圧印加工工程
が必要とされる所定の板厚ｔ11のプレス用母材（例えば
ＳＵＳ材料、その他の金属材料等）３１を用意し、この
母材３１に必要な板厚ｔ12が得られるまで圧印加工用の
金型、すなわち印圧パンチ３２を用いて圧印加工を施
し、所定形状の開口３３を有する凹型部３４を成形す
る。この圧印加工は、必要な圧印板厚ｔ12が得られるま
で繰り返す。つまり、必要条件により複数回実施する。FIG. 1 shows an embodiment of the press-forming method of the present invention, in particular, a coining method and a press-formed product formed by this method. In the present embodiment, as shown in FIG. 1A, the molded member, i.e. a coining press preform of a predetermined thickness t 11 of the processing step is required (e.g. SUS material, other metal materials) 31 was prepared, the base material 31 a die for coining to a thickness of t 12 is obtained required, i.e. subjected to a coining using a printing pressure punch 32, a concave portion 34 having a predetermined shape of the opening 33 Molding. The coining is repeated until the coining plate thickness t 12 required can be obtained. That is, it is performed a plurality of times depending on the necessary conditions.
【００３４】本例では、凹型部３４の底面３４ａは平坦
面である。圧印パンチとしては、プレス成形物に応じて
例えば図１Ａに示すような角型断面の圧印パンチ３２、
或は図３に示すような台形型断面の圧印パンチ３５、そ
の他の形状の圧印パンチ等を用い得る。In this embodiment, the bottom surface 34a of the concave portion 34 is a flat surface. As the coining punch, for example, a coining punch 32 having a square cross section as shown in FIG.
Alternatively, a coining punch 35 having a trapezoidal cross section as shown in FIG. 3, a coining punch having another shape, or the like may be used.
【００３５】次に、図１Ｂに示すように、開口端部３３
ａの幅（以下、径をも含む）、形状を決定する金型本
体、すなわち、開口端部３３ａの幅、形状を規制するパ
ンチ本体３７と、このパンチ本体３７の外側位置に一体
に設けられた肉寄せ用の突起状型部３８からなる金型、
すなわち、仕上げ圧印パンチ３９を用いて仕上げ圧印加
工を施す。Next, as shown in FIG.
A mold body that determines the width (hereinafter also including the diameter) and shape of a, that is, a punch body 37 that regulates the width and shape of the opening end 33a, and is integrally provided at an outer position of the punch body 37. A mold comprising a protruding mold part 38
That is, finish stamping is performed using the finish stamping punch 39.
【００３６】仕上げ圧印パンチ３９は、そのパンチ本体
３７の中心Ｏ21が開口３３（従って凹型部３４）の中心
Ｏ22と略同じ位置にあり、かつパンチ本体３７の幅Ｗ11
が開口幅Ｗ12と略等しいか、又は開口幅Ｗ12より小さく
設定される。本実施の形態では、パンチ本体３７の幅Ｗ
11が開口幅Ｗ12より小さく設定されている（Ｗ12＞
Ｗ11）。また、仕上げ圧印パンチ３９の突起状型部３８
は、仕上げ圧印加工時に母材３１を圧縮し開口３３側に
肉寄せして開口端部に変形を与える位置に設けられると
共に、その形状が肉寄せを可能にして開口端部を変形さ
せる形状に形成される。図１Ｂでは、突起状型部３９が
くさび形状（いわゆる山脈状突起形状）に形成される。In the finishing stamping punch 39, the center O 21 of the punch body 37 is located at substantially the same position as the center O 22 of the opening 33 (the concave portion 34), and the width W 11 of the punch body 37 is provided.
There either substantially equal to the opening width W 12, or smaller is set than the opening width W 12. In the present embodiment, the width W of the punch body 37 is
11 is set smaller than the opening width W 12 (W 12>
W 11). Also, the protruding mold part 38 of the finishing coining punch 39
Is provided at a position where the base material 31 is compressed at the time of the finish coining process, and is shifted to the opening 33 side to deform the opening end. It is formed. In FIG. 1B, the projection-shaped mold portion 39 is formed in a wedge shape (a so-called mountain-shaped projection shape).
【００３７】この仕上げ圧印加工において、仕上げ圧印
パンチ３９の加圧に伴い、パンチ本体３７の外側に設け
られた突起状型部、即ちくさび状型部３８が母材３１の
上面を押すことになる。この際、母材３１は、くさび状
型部３８の形状により、凹部４１が形成されるように、
内方向（開口３３側への方向）と下方向（板厚方向）に
強力な圧縮応力を受け、塑性変形を起す。In this finishing stamping process, a projection-shaped portion provided outside the punch body 37, that is, a wedge-shaped portion 38 presses the upper surface of the base material 31 with the press of the finishing stamping punch 39. . At this time, the base material 31 is formed so that the concave portion 41 is formed by the shape of the wedge-shaped mold portion 38.
A strong compressive stress is applied inward (in the direction toward the opening 33) and downward (in the thickness direction) to cause plastic deformation.
【００３８】塑性変形を起こした母材３１は、開口３３
の外側に凹部４１を形成すると共に、開口３３の内方に
押し出され、いわゆる肉寄せされて開口端部３３ａがパ
ンチ本体３７に押し付けられて規制される。The base material 31 that has undergone plastic deformation has an opening 33
A concave portion 41 is formed on the outside of the opening 33 and is pushed inward of the opening 33, so that the opening end 33 a is pressed against the punch body 37 and regulated.
【００３９】これにより、図１Ｃに示すように、開口外
側に凹部４１が形成され、開口端部３３ａがパンチ本体
３７の根元部に加工されたアール形状と同様のアール形
状に加工されると同時に、凹型部３４が底部の幅より開
口端部の幅を小さくしたハの字断面形状に成形されたプ
レス成形物４２が得られる。As a result, as shown in FIG. 1C, a concave portion 41 is formed outside the opening, and the opening end 33a is formed into a round shape similar to the round shape formed at the base of the punch body 37. Thus, a press-formed product 42 in which the concave portion 34 is formed in a C-shaped cross-sectional shape in which the width of the opening end is smaller than the width of the bottom is obtained.
【００４０】このとき、仕上げ圧印押し出し量ｖ11は、
母材３１の材質、硬度に合わせて調整が必要であるが、
母材３１の板厚ｔ11を減らす方向で加工するため、予め
仕上げ時の押し込む量を見込んでおく必要がある。At this time, the finish coining extrusion amount v 11 is
It is necessary to adjust according to the material and hardness of the base material 31,
For processing in the direction of reducing the thickness t 11 of the preform 31, it is necessary to anticipate the amount of pushing in advance of the finishing time.
【００４１】また、この際の仕上げ圧印パンチ３９の条
件出しについては、図４に示す。仕上げ圧印パンチ３９
において、図１Ｃに示すハの字断面形状の圧印凹型部３
４を得るための支配的な条件は、図４に示す寸法ａ，
ｂ，ｃ及びｄである。このとき、寸法ａは図１Ａの圧印
パンチ３２の幅、したがって開口３３の幅Ｗ12と同寸か
小さくする必要がある。FIG. 4 shows the condition setting of the finishing coining punch 39 at this time. Finish coining punch 39
In FIG. 1C, the impression-shaped concave portion 3 having a C-shaped cross section is shown.
4 are obtained by measuring the dimensions a, shown in FIG.
b, c and d. In this case, the dimension a must be reduced or the width W 12 and the dimensions of the coining punch 32 having a width, thus opening 33 of Figure 1A.
【００４２】 ａ：必要な圧印開口端部３３ａの幅（又は径）。 ｂ：くさび状型部３８の内幅（又は内径）寸法。 ｃ：くさび状型部３８の外幅（又は外径）寸法。 ｄ：くさび状型部３８の高さ。 ｅ：くさび状型部３８の外形アール。 ｆ：必要な圧印開口端部アール。 なお、寸法ｂ，ｃ，ｄ，ｅ，ｆを必要に応じて調整する
ことにより、母材３１を仕上げ圧印パンチ本体３７に押
し付ける圧縮応力を得る。A: Required width (or diameter) of the coining opening end 33a. b: Inner width (or inner diameter) dimension of the wedge-shaped mold part 38. c: The outer width (or outer diameter) dimension of the wedge-shaped mold part 38. d: The height of the wedge-shaped mold part 38. e: The outer radius of the wedge-shaped part 38. f: Required stamping opening end radius. By adjusting the dimensions b, c, d, e, and f as necessary, a compressive stress for pressing the base material 31 against the finishing coining punch body 37 is obtained.
【００４３】上記の４種類の寸法ａ，ｂ，ｃ，ｄを調整
し、かつ図１Ｂの仕上げ圧印押し出し量ｖ11を微調整す
ることで、安定した圧印開口端部幅Ｗ11、開口端部アー
ル形状を有する図１Ｃのプレス成形物４２が得られる。[0043] The above four kinds of dimensions a, b, c, and d to adjust, and the finishing coining extrusion amount v 11 of FIG. 1B by fine adjustment, stable coined open end width W 11, open end The press-formed product 42 of FIG. 1C having a round shape is obtained.
【００４４】さらに、仕上げ圧印加工の後、図１Ｄに示
すように、凹型部３４の底部に透孔４３を打ち抜いてプ
レス成形物４４を得ることができる。Further, after the finish coining, as shown in FIG. 1D, a through-hole 43 is punched out at the bottom of the concave portion 34 to obtain a press-formed product 44.
【００４５】仕上げ圧印パンチ３９の形状については、
プレス成形物に応じて種々のものが用いられる。例え
ば、図５の円型の仕上げ圧印パンチ３９１、図６の角型
の仕上げ圧印パンチ３９２を用いることができる。図５
の仕上げパンチ３９１では、突起状型部３８はパンチ本
体３７を中心とするリング状、即ち開口３３と同心のリ
ング形状に形成される。図６の仕上げ圧印パンチ３９２
では、突起状型部３８はパンチ本体３７を挟んで相対向
する、即ち、圧印開口３３の向い合う２辺に沿って形成
される。場合によっては、円型と角型を合せたトラック
型の仕上げ圧印パンチ、或は三角型、四角型、多角型の
仕上げ圧印パンチを用いることができる。圧印パンチ３
２としては、仕上げ圧印パンチ３９の形状に対応した形
状のものを用いるを可とする。Regarding the shape of the finishing coining punch 39,
Various things are used according to a press molding. For example, a circular finishing coining punch 391 in FIG. 5 and a square finishing coining punch 392 in FIG. 6 can be used. FIG.
In the finishing punch 391 described above, the protruding mold portion 38 is formed in a ring shape centering on the punch body 37, that is, a ring shape concentric with the opening 33. The finishing coining punch 392 of FIG.
Thus, the protruding mold portions 38 are opposed to each other with the punch body 37 interposed therebetween, that is, formed along two opposing sides of the coining opening 33. In some cases, a track-type finishing coining punch combining circular and square shapes, or a triangular, square, or polygonal finishing coining punch can be used. Coining punch 3
As 2, one having a shape corresponding to the shape of the finishing coining punch 39 can be used.
【００４６】図１Ｂの仕上げ圧印工程では、母材３１の
表面より仕上げ圧印加工による面が押し出し量Ｖ11だけ
低くなるように仕上げ圧印パンチ３９の形状を選定して
行ったが、その他、図２Ａに示すような形状の仕上げ圧
印パンチ３９を用いて母材３１の表面と仕上げ圧印加工
による面が同一面となるようにして開口端部３３ａを内
方に肉寄せして、所望の開口幅Ｗ11を有するプレス成形
物４２を成形することもできる。その後、図２Ｂに示す
ように、凹型部３４の底部に透孔４３を打ち抜いてプレ
ス成形物４４を得る。その他の構成は、図１と同様なの
で、対応する部分には同一符号を付して重複説明を省略
する。[0046] In finishing coining steps of Figure 1B, but the surface by the final coined from the surface of the base material 31 is performed by selecting the shape of the coining punch 39 finish to be lower by extrusion rate V 11, Other, Figure 2A The opening end 33a is moved inward so that the surface of the base material 31 and the surface obtained by the finish stamping process are flush with each other by using the finish stamping punch 39 having the shape shown in FIG. A press-formed article 42 having 11 can also be formed. Thereafter, as shown in FIG. 2B, a through-hole 43 is punched out at the bottom of the concave portion 34 to obtain a press-formed product 44. Other configurations are the same as those in FIG. 1, and corresponding portions are denoted by the same reference numerals and redundant description is omitted.
【００４７】本実施の形態によれば、圧印加工工程にお
いて、圧印パンチ３２によって最初の圧印加工を行って
薄い板厚ｔ11となるように凹型部３４を形成した後、パ
ンチ本体３７の外側に突起状型部３８を一体に有する仕
上げ圧印パンチ３９によって仕上げ圧印加工を行って、
突起状型部３８による押し出し（いわゆる肉寄せ）によ
り、凹型部３４の開口端部３３ａがパンチ本体３７の寸
法、形状に規制され、開口端部３３ａの幅Ｗ11、アール
形状が安定して得られる。従って、開口端部３３ａの幅
Ｗ11、形状が安定した高精度のプレス成形物４２を得る
ことができる。According to the present embodiment, in the coining process, after the first coining process is performed by the coining punch 32 to form the concave portion 34 so as to have a thin plate thickness t 11 , the concave portion 34 is formed outside the punch body 37. The finish stamping process is performed by a finish stamping punch 39 having a projection-shaped portion 38 integrally therewith.
By extrusion by the protruding mold portion 38 (so-called meat gathering), the dimensions of the opening end portion 33a is punched body 37 of the concave portion 34, is restricted to the shape, the width W 11 of the opening end portion 33a, rounded shape stably obtained Can be Therefore, it is possible to obtain a high-precision press-formed product 42 having a stable shape and a width W 11 of the opening end 33a.
【００４８】また、圧印開口端部３３ａに、安定した幅
寸法、アール形状が得られるため、圧印加工の寸法、形
状、位置出しに必要とする工数を大幅に削減することが
できる。Further, since a stable width dimension and a round shape are obtained at the coining opening end 33a, the size, shape, and man-hours required for positioning can be significantly reduced.
【００４９】さらに、図１Ｄ、図２Ｂに示す凹型部３４
の底部に透孔４３を形成したプレス成形物４４を作製す
るときは、後述するように光学式測定機による圧印開口
端部３３ａの幅の測定が高精度に行えるので、その透孔
４３と凹型部３４の開口端部３３ａの位置関係を精度よ
く設定することができる。従って、後述するようにこの
圧印加工寸法を電子銃の電極部品に用いた場合には、電
子ビーム軌道の安定化につながり、更には陰極線管特性
の安定化につながる。Further, the concave portion 34 shown in FIGS. 1D and 2B is used.
When a press-formed product 44 having a through hole 43 formed at the bottom of the stamper is manufactured, the width of the coining opening end 33a can be measured with high precision by an optical measuring device as described later. The positional relationship of the opening end 33a of the portion 34 can be set with high accuracy. Therefore, when this coining dimension is used for an electrode part of an electron gun as described later, this leads to stabilization of the electron beam trajectory and further to stabilization of the characteristics of the cathode ray tube.
【００５０】次に、本実施の形態において、仕上げ圧印
パンチ３９を使用して成形したプレス成形物４２又は４
４における圧印開口端部３３ａの幅Ｗ11測定の優位性を
説明する。Next, in this embodiment, a press-formed product 42 or 4 formed by using the finishing coining punch 39 is used.
Explaining the superiority of the width W 11 Measurement of coining opening end 33a in 4.
【００５１】本実施の形態においては、図１Ｂ、図２Ａ
に示す仕上げ圧印パンチ３９を使用することで、プレス
成形物４２又は４４の開口３３（すなわち凹型部３４）
がハの字断面形状となる。このように、圧印開口端部３
３ａが少々内方にせり出し、かつ、開口端部３３ａのア
ール形状が安定しているので、前述と同様のＣＣＤカメ
ラを備えた光学式測定機を用いて圧印開口端部３３ａの
幅及び形状を測定する場合、図７に示すように、光学式
測定機の対物レンズ１２を通して落放光ｌF を開口端部
３３ａに照射するときに、開口端部３３ａでの乱反射が
起こりにくく、落射光ｌF は、せり出した開口端部３３
ａと開口３３間の境界を通って垂直に凹型部３４の平坦
な底面３４ａに照射され、その底面３４ａからの反射光
ｌR が対物レンズ１２に入射されるので、対物レンズ１
２へ入射する反射光ｌR を十分確保することができる。
これによって、開口端部３３ａの視認性が大幅に改善さ
れ、高精度な評価が可能になる。In this embodiment, FIGS. 1B and 2A
By using the finishing coining punch 39 shown in FIG. 5, the opening 33 (that is, the concave portion 34) of the press-formed product 42 or 44 is formed.
Has a C-shaped cross section. Thus, the coining opening end 3
3a protrudes a little inward, and since the radius of the opening end 33a is stable, the width and shape of the coining opening end 33a are determined by using an optical measuring machine equipped with a CCD camera similar to that described above. when measuring, as shown in FIG. 7, when illuminated through the objective lens 12 of the optical measuring instrument to落放light l F at the open end 33a, hardly occurs irregular reflection at the open end 33a, incident light l F is the protruding open end 33
a through the boundary between the aperture 33 and the opening 33, the light is radiated vertically onto the flat bottom surface 34a of the concave portion 34, and the reflected light l R from the bottom surface 34a is incident on the objective lens 12;
The reflected light l R incident on 2 can be sufficiently ensured.
Thereby, the visibility of the opening end 33a is greatly improved, and highly accurate evaluation is possible.
【００５２】そして、図１Ｄ、図２Ｂに示すように、凹
型部３４に透孔４３を形成する場合、透孔４３に対する
凹型部３４の開口端部３３のずれを測定し、その測定結
果に基づき、例えば、ずれていれば、そのずれ分をプレ
ス機にフィードバックして圧印パンチ３２、仕上げ圧印
パンチ３９の位置、又は透孔４３を形成するためのプレ
ス打ち抜き用のパンチ（図示せず）の位置を調整するこ
とができる。従って、最終的に透孔中心Ｏ24と凹型部３
４の開口端部３３の中心Ｏ23が合致したプレス成形物４
４、或は図示さぜるも透孔４３と開口端部３３が所望位
置間にあるプレス成形物の高精度な作製が可能となる。As shown in FIGS. 1D and 2B, when the through hole 43 is formed in the concave portion 34, the displacement of the opening end 33 of the concave portion 34 with respect to the through hole 43 is measured, and based on the measurement result, For example, if there is a deviation, the deviation is fed back to the press machine, and the position of the coining punch 32, the finishing coining punch 39, or the position of the punch (not shown) for punching the press for forming the through hole 43. Can be adjusted. Therefore, the center of the through hole O 24 and the concave portion 3 are finally obtained.
4 of the press-molded product 4 to the center O 23 of the open end 33 is met
4, or as shown, it is possible to produce a press-formed product having the through hole 43 and the open end 33 between desired positions with high precision.
【００５３】次に、電子銃の電極の作製に応用した本発
明の他の実施の形態を説明する。図８は電子銃の第２電
極１２に適用した場合であり、図９はその要部の構成を
示す。Next, another embodiment of the present invention applied to the production of an electrode for an electron gun will be described. FIG. 8 shows a case where the present invention is applied to the second electrode 12 of the electron gun, and FIG. 9 shows a configuration of a main part thereof.
【００５４】本実施の形態においては、前述の図１Ａ〜
Ｄの圧印加工工程を採用する。先ず、電極部材となるプ
レス用母材（例えばＳＵＳ材料等）に対して、赤
（Ｒ）、緑（Ｇ）、青（Ｂ）の各電子ビーム透過孔を形
成すべき領域部に、所定板厚ｔ12が得られるまで圧印パ
ンチ３２を用いて圧印加工を施し、底部の板厚がｔ12と
なる凹型部３４１［３４１Ｒ，３４１Ｇ，３４１Ｂ］を
形成する（図１Ａと同様の工程）。但し、各凹型部３４
１Ｒ，３４１Ｇ，３４１Ｂは、各圧印パンチ３２が一体
化された金型で同時形成される。母材の各凹型部３４１
Ｒ，３４１Ｇ，３４１Ｂにおける水平方向の両端外側位
置には予め透孔４８が形成されている。そして、各凹型
部３４１Ｒ，３４１Ｇ，３４１Ｂは、垂直方向の開口幅
が規制されるような横長形状に形成される。In the present embodiment, the aforementioned FIGS.
Adopt the stamping process of D. First, a predetermined plate is formed in a region where each of the red (R), green (G), and blue (B) electron beam transmission holes is to be formed with respect to a pressing base material (for example, a SUS material) serving as an electrode member. subjected to coining with a coining punch 32 to a thickness t 12 is obtained, concave portion 341 [341R, 341G, 341B] of the thickness of the bottom is t 12 to form the (same steps as FIG. 1A). However, each concave portion 34
1R, 341G, and 341B are simultaneously formed by a mold in which the coining punches 32 are integrated. Each concave portion 341 of the base material
R, 341G, and 341B have through-holes 48 formed at positions outside both ends in the horizontal direction in advance. Each of the concave portions 341R, 341G, and 341B is formed in a horizontally long shape such that the vertical opening width is restricted.
【００５５】次に、各凹型部３４１Ｒ，３４１Ｇ，３４
１Ｂに対応するように、水平方向のパンチ長さが凹型部
３４１の長さに略等しく、垂直方向のパンチ幅が凹型部
３４１の開口幅より小さい角型断面形状のパンチ本体３
７を有すると共に、パンチ本体３７の垂直方向の外側に
開口端部の向い合う２辺に沿うように２条の突起状型
部、即ちくさび状型部３８を一体に設けて成る仕上げ圧
印パンチ３９を用いて母材に仕上げ圧印加工を施す（図
１Ｂと同様の工程）。但し、各凹型部３４１Ｒ，３４１
Ｇ，３４１Ｂにおける仕上げ圧印加工は、各仕上げ圧印
パンチ３９が一体化された金型で同時に行われる。Next, each concave portion 341R, 341G, 34
1B, the punch body 3 having a rectangular cross-sectional shape whose punch length in the horizontal direction is substantially equal to the length of the concave portion 341 and whose punch width in the vertical direction is smaller than the opening width of the concave portion 341.
And a stamping punch 39 integrally provided with two protruding mold portions, that is, wedge-shaped portions 38, along the two sides facing the opening end on the outside of the punch body 37 in the vertical direction. Is applied to the base material by using (step similar to FIG. 1B). However, each concave portion 341R, 341
The finishing stamping processing in G and 341B is performed simultaneously by a mold in which the finishing stamping punches 39 are integrated.
【００５６】この仕上げ圧印加工により、各凹型部３４
１Ｒ，３４１Ｇ，３４１Ｂの開口端部の垂直方向の幅が
パンチ本体３９によって所望の幅Ｗ11に規制されたハの
字断面形状の凹型部３４１Ｒ，３４１Ｇ，３４１Ｂが形
成される。この仕上げ圧印加工では、従来のような開口
端面修正が不要なので、図９Ａに示すように、開口端部
のストレート部が長く取れる。By this finish coining, each concave portion 34 is formed.
1R, 341G, concave portion 341R of the shaped cross section of Ha vertical width of the open end of 341B is restricted to a desired width W 11 by the punch body 39, 341G, 341B are formed. In this finish coining, since it is not necessary to modify the opening end face as in the conventional case, as shown in FIG. 9A, a long straight portion at the opening end can be obtained.
【００５７】次に、打ち抜き加工によって、各凹型部３
４１Ｒ，３４１Ｇ，３４１Ｂの底部に夫々孔中心Ｏ24が
凹型部３４１の開口端部３３１の中心Ｏ23と同じになる
ようにした電子ビーム透過孔４３１Ｒ，４３１Ｇ，４３
１Ｂを形成すると同時に、電子銃組み立て時の電極位置
決め用孔５１を形成する（図１Ｄと同様の工程）。その
後、個々に分離して図８及び図９に示す目的の第２電極
１２を得る。Next, each concave portion 3 is formed by punching.
Electron beam transmitting holes 431R, 431G, 43 at the bottoms of 41R, 341G, 341B such that the hole center O 24 is the same as the center O 23 of the opening end 331 of the concave portion 341.
At the same time as forming 1B, an electrode positioning hole 51 for assembling the electron gun is formed (same process as in FIG. 1D). Thereafter, they are individually separated to obtain the desired second electrodes 12 shown in FIGS.
【００５８】このようにして作製された第２電極１２
は、前述と同様に、圧印開口端部のアール形状、幅Ｗ11
が安定して得られ、また、中心Ｏ23とＯ24を略一致する
ように互に位置ずれなく圧印開口３３１及び電子ビーム
透過孔４３１が形成されるので、電子銃における電子ビ
ーム軌道が安定し、陰極線管特性を安定化することがで
きる。The second electrode 12 thus manufactured
In the same manner as described above, the round shape of the coining opening end and the width W 11
Are formed stably, and the coining opening 331 and the electron beam transmission hole 431 are formed so that the centers O 23 and O 24 substantially coincide with each other without displacement, so that the electron beam orbit in the electron gun is stabilized. In addition, the characteristics of the cathode ray tube can be stabilized.
【００５９】また、第２電極１２における圧印開口端部
３３１の寸法（幅Ｗ11）を光学式測定機により、高精度
に測定できるので、電子銃の第２電極１２の高精度品質
管理が行える。Further, since the dimension (width W 11 ) of the coining opening end 331 of the second electrode 12 can be measured with high accuracy by an optical measuring device, high-precision quality control of the second electrode 12 of the electron gun can be performed. .
【００６０】[0060]
【発明の効果】本発明のプレス成形物によれば、圧印開
口部の寸法、形状が安定にかつ高精度に設定されるの
で、高品質のプレス成形物を提供できる。圧印開口部を
有する凹型部の底部に透孔を形成するときは、圧印開口
部と透孔との位置関係が安定に且つ高精度に設定された
高品質のプレス成形物を提供できる。このプレス成形物
は、例えば高精度が要求される電子銃の電極に適用して
好適である。According to the press-formed product of the present invention, the size and shape of the coining opening are set stably and with high precision, so that a high-quality press-formed product can be provided. When the through hole is formed in the bottom of the concave portion having the coining opening, it is possible to provide a high-quality press-formed product in which the positional relationship between the coining opening and the through hole is set stably and with high accuracy. This press-formed product is suitable for application to, for example, an electrode of an electron gun requiring high precision.
【００６１】本発明に係る電子銃の電極によれば、圧印
加工による開口部と電子ビーム透過孔との位置関係が安
定に且つ高精度に設定され、また、圧印開口部の寸法、
形状が安定に且つ高精度に設定されるので、電子銃とし
て組立てたときに、電子ビーム軌道を安定化することが
でき、また、電子ビームスポット径を安定化することが
できる。更に、陰極線管の特性を安定化することができ
る。According to the electrode of the electron gun according to the present invention, the positional relationship between the aperture formed by coining and the electron beam transmitting hole is set stably and with high accuracy.
Since the shape is set stably and with high accuracy, the electron beam trajectory can be stabilized and the electron beam spot diameter can be stabilized when assembled as an electron gun. Further, the characteristics of the cathode ray tube can be stabilized.
【００６２】本発明に係るプレス成形方法によれば、圧
印加工工程において、形状の加工精度、位置出し精度、
寸法評価性の向上と安定化を可能にする。According to the press forming method of the present invention, in the coining process, the processing accuracy of the shape, the positioning accuracy,
Enables improvement and stabilization of dimensional evaluation.
【００６３】特に、圧印開口部に安定した形状、寸法が
得られるので、高精度のプレス成形物を作製することが
できる。また、圧印開口部と凹型部に形成する透孔の位
置関係が高精度に設定されたプレス成形物を作製するこ
とができる。このことは、例えば電子銃の電極部品の作
製に応用した場合、電子ビーム軌道の安定化につなが
り、更には陰極線管特性の安定化につながる。圧印開口
部に安定した形状、寸法が得られるので、圧印加工にお
ける寸法、形状、位置出しに必要な工数を大幅に削減す
ることができる。In particular, since a stable shape and dimensions can be obtained in the coining opening, a highly accurate press-formed product can be manufactured. Further, it is possible to produce a press-formed product in which the positional relationship between the coining opening and the through-hole formed in the concave portion is set with high precision. This leads, for example, to the stabilization of the electron beam trajectory and the stabilization of the characteristics of the cathode ray tube when applied to the production of electrode parts of an electron gun. Since a stable shape and size can be obtained in the coining opening, the man-hour required for the size, shape, and positioning in coining can be significantly reduced.
【００６４】圧印開口部寸法を光学式測定機を用いて測
定する際、圧印開口端部がより鮮明に認識できるように
なり、高精度な測定が可能になる。このことは、例えば
電子銃の電極部品に応用したとき、電子銃の電極部品の
高精度品質管理に有益である。When measuring the size of the impression opening using an optical measuring instrument, the end of the impression opening can be more clearly recognized, and high-precision measurement can be performed. This is useful, for example, when applied to the electrode parts of an electron gun for high-precision quality control of the electrode parts of the electron gun.
【図１】Ａ〜Ｄ 本発明に係るプレス成形方法、特にそ
の圧印加工法の一実施の形態に示す工程図である。FIGS. 1A to 1D are process diagrams showing an embodiment of a press molding method according to the present invention, in particular, a coining method.
【図２】Ａ〜Ｂ 本発明に係る仕上げ圧印加工の他の実
施の形態を示す工程図である。FIGS. 2A and 2B are process diagrams showing another embodiment of finish coining according to the present invention.
【図３】本発明に係る圧印パンチの他の例を示す構成図
である。FIG. 3 is a configuration diagram showing another example of a coining punch according to the present invention.
【図４】図１Ｂの仕上げ圧印パンチの条件出しの説明に
供する断面図である。FIG. 4 is a cross-sectional view for explaining the condition setting of the finishing coining punch of FIG. 1B.
【図５】Ａ 本発明に係る仕上げる圧印パンチの一例を
示す正面図である。 Ｂ その断面図である。FIG. 5A is a front view showing an example of a coining punch to be finished according to the present invention. B is a sectional view thereof.
【図６】Ａ 本発明に係る仕上げ圧印パンチの他の例を
示す正面図である。 Ｂ その断面図である。FIG. 6A is a front view showing another example of the finishing coining punch according to the present invention. B is a sectional view thereof.
【図７】本発明に係るプレス成形物の開口寸法の測定例
を示す説明図である。FIG. 7 is an explanatory view showing a measurement example of the opening dimension of the press-formed product according to the present invention.
【図８】Ａ 本発明に係る電子銃の第２電極の一実施の
形態を示す平面図である。 Ｂ その断面図である。FIG. 8A is a plan view showing an embodiment of the second electrode of the electron gun according to the present invention. B is a sectional view thereof.
【図９】Ａ 図８の要部の平面図である。 Ｂ その断面図である。FIG. 9A is a plan view of a main part of FIG. 8; B is a sectional view thereof.
【図１０】従来のプレス成形方法、特にその圧印加工法
を示す工程図である。FIG. 10 is a process diagram showing a conventional press molding method, particularly a coining method.
【図１１】本発明の説明に供する電子銃の一例を示す構
成図である。FIG. 11 is a configuration diagram showing an example of an electron gun used for describing the present invention.
【図１２】Ａ 従来例に係る電子銃の第２電極を示す平
面図である。 Ｂその断面図である。FIG. 12A is a plan view showing a second electrode of an electron gun according to a conventional example. B is a sectional view thereof.
【図１３】Ａ 図１２の要部を示す平面図である。 Ｂ その断面図である。FIG. 13A is a plan view showing a main part of FIG. 12; B is a sectional view thereof.
【図１４】従来のプレス成形物の開口寸法の測定例を示
す説明図である。FIG. 14 is an explanatory view showing a measurement example of the opening dimension of a conventional press-formed product.
【図１５】Ａ，Ｂ 電子銃の第２電極における圧印開口
部のずれの影響を説明するための説明図である。FIGS. 15A and 15B are explanatory diagrams for explaining the influence of the displacement of the coining opening in the second electrode of the electron guns A and B. FIGS.
１２‥‥光学式対物レンズ、３１‥‥母材、３２，３５
‥‥圧印パンチ、３３‥‥開口、３３ａ‥‥開口部材、
３４‥‥凹型部、３７‥‥パンチ本体、３８‥‥突起状
型部、３９‥‥仕上げ圧印パンチ、４１‥‥凹部、１０
‥‥電子銃、１１〜１８‥‥第１〜第８電極、１９‥‥
コンバージェンスカップ電極、１２‥‥第２電極、３４
１Ｒ，３４１Ｇ，３４１Ｂ‥‥凹型部、４３１Ｒ，４３
１Ｇ，４３１Ｂ‥‥電子ビーム透過孔12 ‥‥ optical objective lens, 31 ‥‥ base material, 32, 35
{Compression punch, 33} opening, 33a} opening member,
34 ° concave portion, 37 ° punch body, 38 ° projecting mold portion, 39 ° finishing coining punch, 41 ° concave portion, 10
{Electron gun, 11 to 18} First to eighth electrodes, 19
Convergence cup electrode, 12 ° second electrode, 34
1R, 341G, 341B concave portion, 431R, 43
1G, 431B ‥‥ Electron beam transmission hole
─────────────────────────────────────────────────────
────────────────────────────────────────────────── ───
【手続補正書】[Procedure amendment]
【提出日】平成１１年１２月２０日（１９９９．１２．
２０）[Submission date] December 20, 1999 (1999.12.
20)
【手続補正１】[Procedure amendment 1]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】特許請求の範囲[Correction target item name] Claims
【補正方法】変更[Correction method] Change
【補正内容】[Correction contents]
【特許請求の範囲】[Claims]
【請求項５】 電極部材に、底部の幅より小さい幅の開
口を有してハの字断面形状の凹型部が形成され、 前記凹型部の底部に前記開口の中心と略同じ位置に中心
を有する電子ビーム透過孔が形成されて成ることを特徴
とする電子銃の電極。 5. An electrode member having an opening having a width smaller than a width of a bottom portion.
A concave portion having a U-shaped cross section with a mouth is formed, and a center is formed at substantially the same position as the center of the opening at the bottom of the concave portion.
An electrode of an electron gun , wherein an electron beam transmission hole having the following is formed.
【請求項６】 被成形部材に第１の圧印加工で第１の開
口を有する凹型部を形成する工程と、 第２の圧印加工で前記凹型部の底部の幅よりも小さい幅
の第２の開口に成形する工程を有して、ハの字断面形状
の凹型部に成形する ことを特徴とするプレス成形方法。 6. The first opening of a member to be molded by a first coining process.
Forming a concave portion having a mouth, and a width smaller than a width of a bottom portion of the concave portion in a second coining process
Having a step of molding into the second opening,
Press forming method characterized by forming into a concave portion .
【請求項７】 前記第２の圧印加工は、金型中心が前記
第１の開口の中心と略同じで、かつ金型幅が前記第１の
開口の幅より小に設定された金型本体を有すると共に、
該金型本体の外側に肉寄せ用の突起状型部を一体に設け
てなる金型を用いて行うことを特徴とする請求項６に記
載のプレス成形方法。 7. In the second coining, the center of the mold is the
The center is substantially the same as the center of the first opening, and the mold width is equal to the first opening.
With a mold body set smaller than the width of the opening,
A protruding mold portion is provided integrally on the outside of the mold body for meat filling.
7. The method according to claim 6, wherein the step is performed by using a metal mold.
Press molding method.
【請求項１０】 前記金型の突起状型部は、少なくと
も、前記第１の開口の端部に変形を与える位置に設けら
れることを特徴とする請求項７に記載のプレス成形方
法。Protruding mold portion according to claim 10 wherein said mold comprises at least a press-molding method according to claim 7, characterized in that provided at a position that gives the deformation end of the first opening.
【請求項１１】 前記金型の突起状型部は、前記第１の
開口の端部を変形させる形状であることを特徴とする請
求項７に記載のプレス成形方法。 11. The protruding mold portion of the mold, the first
A contractor characterized in that it has a shape that deforms the end of the opening.
The press molding method according to claim 7 .
【請求項１２】 前記金型の突起状型部は、くさび形状
であることを特徴とする請求項７に記載のプレス成形方
法。Protruding mold portion according to claim 12, wherein said mold press forming method according to claim 7, characterized in that the wedge-shaped.
【請求項１３】 前記金型の突起状型部は、前記第１の
開口と同心のリング形状であることを特徴とする請求項
７に記載のプレス成形方法。 13. protruding mold portion of the mold, claims, characterized in that said a first <br/> opening concentric with the ring-shaped
8. The press molding method according to 7 .
【請求項１４】 前記金型の突起状型部は、前記第２の
開口を決定する向い合う辺に沿う形状であることを特徴
とする請求項７に記載のプレス成形方法。 14. The press molding method according to claim 7, wherein the protruding mold portion of the mold has a shape along opposite sides that determine the second opening.
【請求項１５】 前記第２の圧印加工の工程後、前記凹
型部の底部に前記第２の開口の中心と略同じ位置に中心
を有する透孔を形成する工程を有することを特徴とする
請求項６に記載のプレス成形方法。 15. After the step of the second coining, the concave is formed.
The center of the bottom of the mold portion is located at substantially the same position as the center of the second opening.
Having a step of forming a through hole having
The press molding method according to claim 6.
【手続補正２】[Procedure amendment 2]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】００１４[Correction target item name] 0014
【補正方法】変更[Correction method] Change
【補正内容】[Correction contents]
【００１４】[0014]
【課題を解決するための手段】本発明のプレス成形物
は、圧印加工により、凹型部の底部の幅より小さい幅の
開口を有してハの字断面形状の凹型部が成形された構成
とする。According to the present invention, a press-formed product having a width smaller than the width of the bottom of the concave portion is formed by coining.
It has a configuration in which a concave portion having a C-shaped cross section is formed with an opening .
【手続補正３】[Procedure amendment 3]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】００１５[Correction target item name] 0015
【補正方法】変更[Correction method] Change
【補正内容】[Correction contents]
【００１５】このプレス成形物においては、ハの字断面
形状の凹型部が成形されているので、圧印開口部の形
状、寸法が安定化し、また光学式測定機による開口端部
の視認性も向上する。従って、プレス成形物の高精度化
が図れる。In this press-formed product, a C-shaped cross section
Since the concave portion is formed, the shape and size of the coining opening are stabilized, and the visibility of the opening end by the optical measuring device is also improved. Therefore, the precision of the press-formed product can be improved.
【手続補正４】[Procedure amendment 4]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】００１６[Correction target item name] 0016
【補正方法】削除[Correction method] Deleted
【手続補正５】[Procedure amendment 5]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】００１７[Correction target item name] 0017
【補正方法】削除[Correction method] Deleted
【手続補正６】[Procedure amendment 6]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】００１８[Correction target item name] 0018
【補正方法】変更[Correction method] Change
【補正内容】[Correction contents]
【００１８】本発明の電子銃の電極は、底部の幅より小
さい幅の開口を有してハの字断面形状の凹型部が形成さ
れ、凹型部の底部に電子ビーム透過孔が形成された構成
とする。The electrode of the electron gun of the present invention is smaller than the width of the bottom.
Concave section with a U-shaped cross section
The electron beam transmission hole is formed at the bottom of the concave portion.
【手続補正７】[Procedure amendment 7]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】００１９[Correction target item name] 0019
【補正方法】変更[Correction method] Change
【補正内容】[Correction contents]
【００１９】この電子銃の電極においては、凹型部が開
口端部が内方にせり出すハの字断面形状に成形されてい
るので、圧印開口部の形状、寸法が安定化し、また光学
式測定機による開口端部の視認性も向上する。従って、
電子ビーム透過孔と凹型部との位置精度が向上し、電子
銃における電子ビーム軌道の安定化、さらに電子銃特
性、ひいては陰極線管の特性の安定化が図れる。In the electrode of this electron gun, a concave portion is opened.
Since the mouth end is formed to have a C-shaped cross section that protrudes inward, the shape and dimensions of the coining opening are stabilized, and the visibility of the opening end by an optical measuring device is also improved. Therefore,
The positional accuracy between the electron beam transmission hole and the concave portion is improved, and the electron beam trajectory in the electron gun can be stabilized, and further, the characteristics of the electron gun and, in turn, the characteristics of the cathode ray tube can be stabilized.
【手続補正８】[Procedure amendment 8]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】００２０[Correction target item name] 0020
【補正方法】変更[Correction method] Change
【補正内容】[Correction contents]
【００２０】本発明のプレス成形方法は、被成形部材に
第１の圧印加工で第１の開口を有する凹型部を形成する
工程と、第２の圧印加工で凹型部の底部の幅よりも小さ
い幅の第２の開口に成形する工程を有して、ハの字断面
形状の凹型部に成形する。 The press forming method of the present invention is applied to a member to be formed.
Forming a concave portion having a first opening by first coining
In the step and the second coining process, the width is smaller than the width of the bottom of the concave portion.
Forming a second opening having a wide width
It is molded into a concave part of the shape.
【手続補正９】[Procedure amendment 9]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】００２１[Correction target item name] 0021
【補正方法】変更[Correction method] Change
【補正内容】[Correction contents]
【００２１】このプレス成形方法においては、第１の圧
印加工と第２の圧印加工によって、ハの字断面形状の凹
型部が成形されるので、開口端部の形状、幅寸法が安定
して得られ、圧印加工の寸法、形状、位置出しに必要な
工数が削減できる。また、開口端部寸法を光学式測定機
を用いて測定する際、開口部がより鮮明に視認され、高
精度の測定が可能になる。In this press molding method, the first pressure
By the stamping and the second coining, a concave with a C-shaped cross section
Since the mold is formed, the shape and width of the opening end can be obtained stably, and the size, shape, and man-hours required for positioning can be reduced. Further, when measuring the size of the opening end using an optical measuring instrument, the opening is more clearly recognized and high-precision measurement is possible.
【手続補正１０】[Procedure amendment 10]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】００２２[Correction target item name] 0022
【補正方法】削除[Correction method] Deleted
【手続補正１１】[Procedure amendment 11]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】００２３[Correction target item name] 0023
【補正方法】削除[Correction method] Deleted
【手続補正１２】[Procedure amendment 12]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】００２４[Correction target item name] 0024
【補正方法】変更[Correction method] Change
【補正内容】[Correction contents]
【００２４】[0024]
【発明の実施の形態】本発明に係るプレス成形物は、部
材に圧印加工により、凹型部の底部の幅より小さい幅の
開口を有してハの字断面形状の凹型部が成形された構成
とする。 Press molding according to the present invention DETAILED DESCRIPTION OF THE INVENTION, parts
By stamping the material, the width of the material is smaller than the width of the bottom of the concave part.
Configuration in which a concave portion with a U-shaped cross section is formed with an opening
And
【手続補正１３】[Procedure amendment 13]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】００２５[Correction target item name] 0025
【補正方法】変更[Correction method] Change
【補正内容】[Correction contents]
【００２５】本発明は、上記プレス成形物において、開
口の外側位置に圧印加工により成形された凹部を有し、
凹部より開口側へ肉寄せして構成することができる。こ
の部材の肉寄せされた部分の面を他の面と同じか、又は
この他の面より低くなるように成形することができる。
上記プレス成形物において、凹型部の底部に開口中心と
略同じ位置に中心を有する透孔を形成することができ
る。 The present invention relates to the above press-formed product,
It has a recess formed by coining at the position outside the mouth,
It can be constructed by shifting the thickness toward the opening side from the concave portion. This
The surface of the part where the meat is moved is the same as the other surface, or
It can be formed to be lower than the other surfaces.
In the above press-formed product, the center of the opening is located at the bottom of the concave portion.
A through hole having a center at almost the same position can be formed
You.
【手続補正１４】[Procedure amendment 14]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】００２６[Correction target item name] 0026
【補正方法】変更[Correction method] Change
【補正内容】[Correction contents]
【００２６】本発明に係る電子銃の電極は、電極部材
に、底部の幅より小さい幅の開口を有してハの字断面形
状の凹型部が形成され、凹型部の底部に開口の中心と略
同じ位置に中心を有する電子ビーム透過孔が形成された
構成とする。An electrode of an electron gun according to the present invention has an electrode member having an opening having a width smaller than the width of the bottom, and having a C-shaped cross section.
Is formed at the bottom of the concave portion and substantially at the center of the opening.
An electron beam transmission hole having a center at the same position is formed.
【手続補正１５】[Procedure amendment 15]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】００２７[Correction target item name] 0027
【補正方法】変更[Correction method] Change
【補正内容】[Correction contents]
【００２７】本発明に係るプレス成形方法は、被成形部
材に第１の圧印加工で第１の開口を有する凹型部を形成
する工程と、第２の圧印加工で凹型部の底部の幅よりも
小さい幅の第２の開口に成形する工程を有して、ハの字
断面形状の凹型部に成形する。 In the press molding method according to the present invention, a concave portion having a first opening is formed in a member to be molded by a first coining process.
And the width of the bottom of the concave portion in the second coining process
Forming a second opening having a small width,
It is formed into a concave section having a cross-sectional shape.
【手続補正１６】[Procedure amendment 16]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】００２８[Correction target item name] 0028
【補正方法】変更[Correction method] Change
【補正内容】[Correction contents]
【００２８】第２の圧印加工は、金型中心が第１の開口
の中心と略同じで、かつ金型幅が第１の開口の幅より小
に設定された金型本体を有すると共に、該金型本体の外
側に肉寄せ用の突起状型部を一体に設けてなる金型を用
いて行う。第２の圧印加工では、突起状型部による金型
本体側への圧印押し出し量に相当する押し込み量をもっ
て、金型を押し込む。第２の圧印加工では、被成形部材
の肉寄せ部分の面が他の面と同じか、又はこの他の面よ
り低くなるように成形することができる。 In the second coining process, the center of the mold is the first opening.
And the mold width is smaller than the width of the first opening.
And a mold body set outside of the mold body.
Use a mold with a protruding mold part on the side
And do it. In the second coining process, a mold using a protruding mold portion
With a push-in amount equivalent to the coining push-out amount to the main unit side
And push the mold. In the second coining process, the member to be molded is
If the side of the flesh is the same as, or
It can be molded to be lower.
【手続補正１７】[Procedure amendment 17]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】００２９[Correction target item name] 0029
【補正方法】変更[Correction method] Change
【補正内容】[Correction contents]
【００２９】上記金型の突起状型部は、少なくとも、第
１の開口の端部に変形を与える位置に設けられる。The above mold protruding mold portion, at least, a
It is provided at a position where the end of one opening is deformed.
【手続補正１８】[Procedure amendment 18]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】００３０[Correction target item name] 0030
【補正方法】変更[Correction method] Change
【補正内容】[Correction contents]
【００３０】上記金型の突起状型部は、第１の開口の端
部を変形させる形状とする。上記金型の突起状型部は、
くさび形状とすることができる。上記金型の突起状型部
は、第１の開口と同心のリング形状とすることができ
る。上記金型の突起状型部は、第２の開口を決定する向
い合う辺に沿う形状とすることができる。The protruding mold portion of the mold has a shape that deforms the end of the first opening. The protruding mold part of the mold,
It can be wedge shaped. The protruding mold portion of the mold may have a ring shape concentric with the first opening. The protruding mold portion of the mold may have a shape along opposing sides that determine the second opening.
【手続補正１９】[Procedure amendment 19]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】００３１[Correction target item name] 0031
【補正方法】変更[Correction method] Change
【補正内容】[Correction contents]
【００３１】本発明は、上記プレス成形方法において、
第２の圧印加工の工程後、凹型部の底部に前記第２の開
口の中心と略同じ位置に中心を有する透孔を形成する工
程を有することができる。 The present invention relates to the above press molding method,
After the second coining process, the second opening is formed on the bottom of the concave portion.
A process to form a through hole with the center at approximately the same position as the center of the mouth
Can have
【手続補正２０】[Procedure amendment 20]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】００３８[Correction target item name] 0038
【補正方法】変更[Correction method] Change
【補正内容】[Correction contents]
【００３８】塑性変形を起こした母材３１は、開口３３
の外側に凹部４１を形成すると共に、開口３３の内方に
押し出され、いわゆる肉寄せされて開口端部３３ａがパ
ンチ本体３７に押し付けられて規制される。すなわち、
凹型部３４の開口幅が決定される。 The base material 31 that has undergone plastic deformation has an opening 33
A concave portion 41 is formed on the outside of the opening 33 and is pushed inward of the opening 33, so that the opening end 33 a is pressed against the punch body 37 and regulated. That is,
The opening width of the concave portion 34 is determined.
【手続補正２１】[Procedure amendment 21]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】００６０[Correction target item name] 0060
【補正方法】変更[Correction method] Change
【補正内容】[Correction contents]
【００６０】[0060]
【発明の効果】本発明のプレス成形物によれば、底部の
幅より小さい幅の開口を有するハの字断面形状の凹型部
が形成された構成であるので、光学式測定機による開口
端部の視認性を向上することができ、開口端部の位置、
開口幅を高精度に測定することができる。凹型部がハの
字断面形状であるので、圧印開口部の幅寸法、形状が安
定にかつ高精度に設定され、高品質のプレス成形物を提
供できる。圧印開口部の外側位置に印加加工により成形
された凹部を有し、凹部より開口側へ肉寄せして構成す
るときは、良好なハの字断面形状の凹型部が得られると
共に、開口端部の形状、開口幅の高精度かつ安定したプ
レス成形物が得られる。この部材の肉寄せされた部分の
面を他の面と同じにして成形するときは、部材の面を同
一面にして、良好なハの字断面形状の凹部が得られると
共に、開口端部の形状、開口幅の高精度かつ安定したプ
レス成形物が得られる。この部材の肉寄せされた部分の
面を他の面より低くなるように成形するときは、さら
に、良好なハの字断面形状の凹部が得られると共に、開
口端部の形状、開口幅の高精度かつ安定したプレス成形
物が得られる。圧印開口部を有する凹型部の底部に透孔
を形成するときは、圧印開口部と透孔との位置関係が安
定に且つ高精度に設定された高品質のプレス成形物を提
供できる。このプレス成形物は、例えば高精度が要求さ
れる電子銃の電極に適用して好適である。According to the press-formed product of the present invention, the bottom
C-shaped concave portion with opening smaller in width than width
Is formed, the aperture by the optical measuring device
The visibility of the end can be improved, the position of the opening end,
The opening width can be measured with high accuracy. The concave part is c
Since it has a U- shaped cross section, the width dimension and shape of the coining opening are set stably and with high accuracy, and a high-quality press-formed product can be provided. Forming by application processing at the position outside the coining opening
With a recessed portion, and the recessed portion is approached to the opening side.
When a concave part with a good U-shaped cross section is obtained,
In both cases, the shape of the opening end and the opening width are highly accurate and stable.
A molded article is obtained. Of this part
When molding with the same surface as the other surface, make the surface of the member the same.
When a concave portion with a good U-shaped cross section is obtained on one surface
In both cases, the shape of the opening end and the opening width are highly accurate and stable.
A molded article is obtained. Of this part
When molding one side so that it is lower than the other,
In addition, a good U-shaped cross section is obtained and
High-precision and stable press forming of the shape of the mouth end and opening width
Things are obtained. When the through hole is formed in the bottom of the concave portion having the coining opening, it is possible to provide a high-quality press-formed product in which the positional relationship between the coining opening and the through hole is set stably and with high accuracy. This press-formed product is suitable for application to, for example, an electrode of an electron gun requiring high precision.
【手続補正２２】[Procedure amendment 22]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】００６１[Correction target item name] 0061
【補正方法】変更[Correction method] Change
【補正内容】[Correction contents]
【００６１】本発明に係る電子銃の電極によれば、電極
部材にハの字断面形状に凹型部を形成し、この凹型部の
底部に電子ビーム透過孔を形成した構成とすることによ
り、凹型部の開口端部の位置、開口幅が光学式測定機に
より高精度に測定することができ、これによって、高精
度品質管理が可能になる。圧印加工による開口部と電子
ビーム透過孔との位置関係が安定に且つ高精度に設定さ
れ、また、圧印開口部の寸法、形状が安定に且つ高精度
に設定されるので、電子銃として組立てたときに、電子
ビーム軌道を安定化することができ、また、電子ビーム
スポット径を安定化することができる。更に、陰極線管
の特性を安定化することができる。According to the electrode of the electron gun according to the present invention, the electrode
A concave portion is formed in the member in the shape of a cross section, and the concave portion
By forming the electron beam transmission hole at the bottom,
The position of the opening end of the concave part and the opening width are
Measurement can be performed with higher accuracy,
Quality control becomes possible. Since the positional relationship between the aperture and the electron beam transmitting hole by coining is set stably and with high accuracy, and the size and shape of the coining opening are set with stability and with high accuracy, it was assembled as an electron gun. Sometimes, the electron beam trajectory can be stabilized, and the electron beam spot diameter can be stabilized. Further, the characteristics of the cathode ray tube can be stabilized.
【手続補正２３】[Procedure amendment 23]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】００６２[Correction target item name] 0062
【補正方法】変更[Correction method] Change
【補正内容】[Correction contents]
【００６２】本発明に係るプレス成形方法によれば、第
１の開口を有する凹型部を形成する第１の圧印加工工程
と、凹型部の底部の幅より小さい幅の第２の開口に成形
する第２の圧印加工工程を有することにより、ハの字断
面形状の凹型部を成形することができる。圧印加工工程
において、形状の加工精度、位置出し精度、寸法評価性
の向上と安定化を可能にする。According to the press forming method according to the [0062] present invention, the
First coining process for forming a concave portion having one opening
And a second opening having a width smaller than the width of the bottom of the concave portion
Having a second coining process step
A concave portion having a planar shape can be formed. In the coining process, it is possible to improve and stabilize shape processing accuracy, positioning accuracy, and dimensional evaluation.
【手続補正２４】[Procedure amendment 24]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】００６３[Correction target item name] 0063
【補正方法】変更[Correction method] Change
【補正内容】[Correction contents]
【００６３】第２の圧印加工工程を有するので、圧印開
口部の形状、幅寸法が安定して得られ、高精度のプレス
成形物を作製することができる。ハの字断面形状の凹型
部の底部に透孔を形成するときは、凹型部の開口と透孔
の位置関係が高精度に設定されたプレス成形物を作製す
ることができる。このことは、例えば電子銃の電極部品
の作製に応用した場合、電子ビーム軌道の安定化につな
がり、更には陰極線管特性の安定化につながる。圧印開
口部に安定した形状、寸法が得られるので、圧印加工に
おける寸法、形状、位置出しに必要な工数を大幅に削減
することができる。 Since there is a second coining process, the coining
The shape and width of the mouth can be stably obtained, and a high-precision press-formed product can be manufactured. C-shaped concave shape
When the through hole is formed at the bottom of the portion, a press-formed product in which the positional relationship between the opening of the concave portion and the through hole is set with high precision can be produced. This leads, for example, to the stabilization of the electron beam trajectory and the stabilization of the characteristics of the cathode ray tube when applied to the production of electrode parts of an electron gun. Since a stable shape and size can be obtained in the coining opening, the man-hour required for the size, shape, and positioning in coining can be significantly reduced.
【手続補正２５】[Procedure amendment 25]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】００６４[Correction target item name] 0064
【補正方法】変更[Correction method] Change
【補正内容】[Correction contents]
【００６４】ハの字断面形状に成形することで、プレス
成形物の測定、評価を高精度化することができる。即
ち、圧印開口部の開口端部の形状、開口幅を光学式測定
機を用いて測定する際、圧印開口端部がより鮮明に認識
できるようになり、高精度な測定が可能になる。このこ
とは、例えば電子銃の電極部品に応用したとき、電子銃
の電極部品の高精度品質管理に有益である。第２の圧印
加工では、金型中心が第１の開口の中心と略同じで、か
つ金型幅が第１の開口の幅より小に設定された金型本体
を有すると共に、金型本体の外側に肉寄せ用の突起状型
部を一体に設けてなる金型を用いて行うので、圧印開口
部（特に、端部形状、幅など）を高精度に成形できる。
第２の圧印加工で、突起状型部による金型本体側への圧
印押し出し量に相当する押し込み量をもって、金型を押
し込むことにより、良好なハの字断面形状の成形ができ
ると共に、開口部の形状、幅を安定、かつ高精度に形成
できる。第２の圧印加工で、被成形部材の肉寄せ部分の
面が他の面と同じになるように成形することにより、被
成形部材の面を同一面にして、良好なハの字断面形状の
成形ができると共に、開口部の形状、幅を安定、かつ高
精度に成形できる。第２の圧印加工で、被成形部材の肉
寄せ部分の面が他の面より低くなるように成形すること
により、さらに、良好なハの字断面形状の成形ができる
と共に、開口部の形状、幅を安定、かつ高精度に成形で
きる。 Pressing by forming into a C-shaped cross section
Measurement and evaluation of molded products can be performed with high precision. Immediately
That is, when the shape and width of the opening end of the coining opening are measured using an optical measuring device, the coining opening end can be more clearly recognized, and highly accurate measurement can be performed. This is useful, for example, when applied to the electrode parts of an electron gun for high-precision quality control of the electrode parts of the electron gun. Second coining
In the processing, the center of the mold is almost the same as the center of the first opening.
Mold body with one mold width set smaller than the width of the first opening
And a protruding mold on the outside of the mold body
Since it is performed by using a mold with an integrated part,
The part (particularly, end shape, width, etc.) can be molded with high precision.
In the second coining process, pressure is applied to the mold body side by the protruding mold.
Press the mold with the pushing amount corresponding to the stamping amount.
By shaping, it is possible to form a good C-shaped cross section.
And the opening shape and width are stable and formed with high precision
it can. In the second coining process, the part of the body
By molding so that the surface is the same as other surfaces,
Make the surface of the molded member the same surface, and
Molding is possible, and the shape and width of the opening are stable and high.
Can be molded with high precision. In the second coining process, the meat
Molding so that the side of the approach part is lower than the other side
Thereby, it is possible to form a more favorable C-shaped cross section.
In addition, the shape and width of the opening are stable and molded with high precision
Wear.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 田原 幸一 大阪府大阪市東成区神路２丁目４番６号 株式会社山幸製作所内 Ｆターム(参考） 4E087 AA08 AA10 CA11 CA17 EC01 EC12 HA00 ────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Koichi Tahara 2-4-6 Jinji, Higashinari-ku, Osaka City, Osaka Prefecture F-term (reference) 4E087 AA08 AA10 CA11 CA17 EC01 EC12 HA00
Claims (11)
圧印加工時の前記開口の外側位置に形成した凹部による
肉寄せによって成形されて成ることを特徴とするプレス
成形物。An opening is formed in a member, and an end of the opening is
A press-formed product formed by embossing by a concave portion formed at a position outside the opening at the time of coining.
れ、 該凹型部の開口端部が、仕上げ圧印加工時の開口の外側
位置に形成した凹部による肉寄せによって成形され、 前記凹型部の底部に透孔が形成されて成ることを特徴と
するプレス成形物。2. A concave portion is formed on the member by coining, and an opening end of the concave portion is formed by a concave portion formed outside the opening at the time of finishing coining, and a bottom portion of the concave portion is formed. A press-formed product, characterized in that a through-hole is formed in the press-formed product.
され、該凹型部の開口端部が、仕上げ圧印加工時の開口
外側位置に形成した凹部による肉寄せによって成形さ
れ、 前記凹型部の底部に電子ビーム透過孔が形成されて成る
ことを特徴とする電子銃の電極。3. A concave portion is formed on the electrode member by coining, and an open end of the concave portion is formed by a concave portion formed at a position outside the opening at the time of finish coining, and a bottom portion of the concave portion is formed. An electrode of an electron gun, wherein an electron beam transmission hole is formed in the electrode.
型本体の外側に肉寄せ用の突起状型部を一体に設けてな
る金型を用いて、前記被成形部材に圧印加工を施す工程
とを有することを特徴とするプレス成形方法。4. A step of forming an opening in a member to be molded, a mold body for determining a width of the opening, and a projection-like mold portion for moving the outside of the mold body is integrally provided outside the mold body. Applying a coining process to the member to be molded by using a metal mold.
中心と略同じで、かつ金型幅が前記開口の幅に略等しい
か又は前記開口の幅より小さいことを特徴とする請求項
４に記載のプレス成形方法。5. The mold body, wherein the center of the mold is substantially the same as the center of the opening, and the width of the mold is substantially equal to or smaller than the width of the opening. Item 5. The press molding method according to Item 4.
前記開口の端部に変形を与える位置に設けられることを
特徴とする請求項４に記載のプレス成形方法。6. The protruding mold part of the mold, at least
The press-forming method according to claim 4, wherein the press-forming method is provided at a position where the end of the opening is deformed.
部を変形させる形状であることを特徴とする請求項４に
記載のプレス成形方法。7. The press-forming method according to claim 4, wherein the protruding mold portion of the mold has a shape that deforms an end of the opening.
あることを特徴とする請求項７に記載のプレス成形方
法。8. The press-forming method according to claim 7, wherein the projecting mold portion of the mold has a wedge shape.
心のリング形状であることを特徴とする請求項７に記載
のプレス成形方法。9. The press-forming method according to claim 7, wherein the protruding mold portion of the mold has a ring shape concentric with the opening.
決定する向い合う辺に沿う形状であることを特徴とする
請求項７に記載のプレス成形方法。10. The press molding method according to claim 7, wherein the protruding mold portion of the mold has a shape along opposite sides that determine the opening.
を形成する工程と、 前記凹型部の開口幅を決定する金型本体を有すると共
に、金型本体の外側に肉寄せ用の突起状型部を一体に設
けてなる金型を用いて、前記被成形部材に仕上げた圧印
加工を施す工程と、 前記凹型部の底部に透孔を形成する工程を有することを
特徴とするプレス成形方法。11. A step of forming a concave portion on a member to be molded by printing pressure processing, a mold main body for determining an opening width of the concave portion, and a projection-like mold for shifting the thickness outside the mold main body. A press forming method, comprising: a step of performing a finished coining process on the member to be molded by using a mold provided integrally with a part; and a step of forming a through hole in a bottom of the concave part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP31317698A JP3220710B2 (en) | 1998-11-04 | 1998-11-04 | Electrode of electron gun and method of manufacturing the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP31317698A JP3220710B2 (en) | 1998-11-04 | 1998-11-04 | Electrode of electron gun and method of manufacturing the same |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001112753A Division JP2001347338A (en) | 2001-04-11 | 2001-04-11 | Press formed part and press forming method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2000140977A true JP2000140977A (en) | 2000-05-23 |
| JP3220710B2 JP3220710B2 (en) | 2001-10-22 |
Family
ID=18038028
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP31317698A Expired - Fee Related JP3220710B2 (en) | 1998-11-04 | 1998-11-04 | Electrode of electron gun and method of manufacturing the same |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3220710B2 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010253562A (en) * | 2010-08-06 | 2010-11-11 | Okabe Co Ltd | Method for manufacturing stud and bulged part forming pin used therefor |
| JP2018099715A (en) * | 2016-12-21 | 2018-06-28 | 阪和興業株式会社 | Manufacturing method of pressed article |
| CN112191727A (en) * | 2020-09-22 | 2021-01-08 | 长沙高新开发区锦德电子科技有限公司 | Stamping die of needle electrode, plasma needle electrode and preparation method thereof |
| RU2780669C1 (en) * | 2022-02-24 | 2022-09-28 | Федеральное Государственное Бюджетное Образовательное Учреждение Высшего Образования "Новосибирский Государственный Технический Университет" | Method for minting coins |
-
1998
- 1998-11-04 JP JP31317698A patent/JP3220710B2/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010253562A (en) * | 2010-08-06 | 2010-11-11 | Okabe Co Ltd | Method for manufacturing stud and bulged part forming pin used therefor |
| JP2018099715A (en) * | 2016-12-21 | 2018-06-28 | 阪和興業株式会社 | Manufacturing method of pressed article |
| CN112191727A (en) * | 2020-09-22 | 2021-01-08 | 长沙高新开发区锦德电子科技有限公司 | Stamping die of needle electrode, plasma needle electrode and preparation method thereof |
| RU2780669C1 (en) * | 2022-02-24 | 2022-09-28 | Федеральное Государственное Бюджетное Образовательное Учреждение Высшего Образования "Новосибирский Государственный Технический Университет" | Method for minting coins |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3220710B2 (en) | 2001-10-22 |
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