JPS60124421A - How to drill holes in plate material - Google Patents
How to drill holes in plate materialInfo
- Publication number
- JPS60124421A JPS60124421A JP23130483A JP23130483A JPS60124421A JP S60124421 A JPS60124421 A JP S60124421A JP 23130483 A JP23130483 A JP 23130483A JP 23130483 A JP23130483 A JP 23130483A JP S60124421 A JPS60124421 A JP S60124421A
- Authority
- JP
- Japan
- Prior art keywords
- hole
- holes
- taper
- coining
- edges
- 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.)
- Granted
Links
- 239000000463 material Substances 0.000 title claims description 14
- 238000000034 method Methods 0.000 claims description 16
- 238000005553 drilling Methods 0.000 claims description 4
- 238000003754 machining Methods 0.000 claims description 3
- 238000003672 processing method Methods 0.000 description 5
- 230000007423 decrease Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000005498 polishing Methods 0.000 description 3
- 238000010894 electron beam technology Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 230000001010 compromised effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 235000013372 meat Nutrition 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D31/00—Other methods for working sheet metal, metal tubes, metal profiles
- B21D31/02—Stabbing or piercing, e.g. for making sieves
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
〔発明の利用分野〕
本発明は板材の穴加工方法に係Ｄ、！に近接し九複数個
の穴縁を滑らかに仕上げる板材の穴加工方法に関する。[Detailed Description of the Invention] [Field of Application of the Invention] The present invention relates to a method for drilling holes in plate materials. This invention relates to a method for drilling holes in a plate material, in which the edges of nine or more holes in close proximity to each other are finished smoothly.
近接した複数個の穴を有する部品として、例えば第１図
に示すようなインライン形カラー受像管用電子銃のＩＩ
惚構体が知られている。電極構体１には近接幅が極めて
小さい複数の電子ビーム通過−１り〜４萌よインライン
分Ｖ鹸胎１嘘台−イｈス−常♀ビーム通過孔２〜４はプ
レス打抜きによって形成されるが、プレス打抜きのまま
であると、穴縁２ａ〜４ａが比較的鋭利になっているの
で、この穴縁２ａ％４ａに電界集中を受けやすく、耐電
圧特性が低下する。As a part having a plurality of adjacent holes, for example, an in-line color picture tube electron gun II as shown in FIG.
He is known for his love structure. The electrode structure 1 has a plurality of electron beam passing holes with extremely small proximity widths -1 to 4 in-line portions.The beam passing holes 2 to 4 are formed by press punching. However, if the hole edges 2a to 4a are relatively sharp if the hole edges 2a to 4a are left as they are press punched, the electric field is likely to be concentrated on the hole edges 2a to 4a, resulting in a decrease in withstand voltage characteristics.
通常、プレス打抜きのｔま電極構体として使用する場合
、鋭利部を除去して耐電圧特性を改善するために、バレ
ル研磨や化学研磨などの処理工程が行なわれる。しかし
ながら、かかる方法は研、Ｈ量に限界があり、また多大
な時間を必要とするという欠点を有する。Normally, when used as a press-punched electrode structure, processing steps such as barrel polishing and chemical polishing are performed to remove sharp parts and improve voltage resistance characteristics. However, such a method has the disadvantage that the amount of polishing and hydrogen is limited and that it requires a large amount of time.
そこで、本発明者は鋭利な穴ｍ２Ｍ−４８をプレス加工
によって除去し、第２図に示すようなテ、＜状の穴縁２
ｂ〜４ｂにすることについて考えた。第２図に示すよう
な電極構体ｌのプレスによる大加工方法としては、一般
に第３図に示すような方法が考えられる。同図（ａ）に
示すように素材板ＩＯに所定形状の下穴１！〜Ｉ３をあ
け、次いで同図（ｂ）に示すように仕上穴１４〜Ｉ６を
あけ、最後に穴縁１４ａ −１６８に同図（Ｃ）に示す
ようにテーパコイニングを行なってテーパ状の穴縁１４
ｂ −１６ｂとする。Therefore, the inventor of the present invention removed the sharp hole m2M-48 by press working, and created a hole edge with a te and < shape as shown in Fig. 2.
I thought about changing it to b-4b. As a method for large-scale machining by pressing the electrode structure l as shown in FIG. 2, a method as shown in FIG. 3 is generally considered. As shown in the figure (a), a prepared hole 1 of a predetermined shape is formed in the material plate IO! -I3, then finish holes 14 to I6 are drilled as shown in the same figure (b), and finally, taper coining is performed on the hole edges 14a-168 as shown in the same figure (C) to form a tapered hole edge. 14
b -16b.
しかしながら、この方法はテーパコイニング時の余肉吸
収箇所がないので、仕上穴１４〜】６の真円度や穴縁ｔ
ｕｂ〜１６ｂ周囲の°平面度が低下するという欠点があ
る。However, with this method, there is no point where excess thickness is absorbed during taper coining, so the roundness of the finished holes 14 to 6 and the hole edge t
There is a drawback that the degree flatness around ub~16b decreases.
本発明の目的は、高精度に複数個の近接した穴縁を面取
シ状にテーパ化することができる板材の穴加工方法を提
供することにある。SUMMARY OF THE INVENTION An object of the present invention is to provide a method for machining holes in a plate material by which a plurality of adjacent hole edges can be chamfered and tapered with high precision.
〔発明の１Ｒ要〕
本発明は、複数の近接した穴の穴縁に面取シ状のテーパ
部を形成する板材の穴加工方法において、素材に下火を
あけ、次いで下火または下火方向と板厚方向へ余肉を逃
すようにテーパコイニングを行ない、その後仇望の径に
穴を打抜くととを特徴とする。[Required 1R of the Invention] The present invention provides a hole processing method for a plate material in which a chamfered tapered portion is formed on the hole edge of a plurality of adjacent holes, in which a bottom hole is drilled in the material, and then a bottom hole is drilled in the material, and then a bottom hole is drilled in the bottom hole or in the direction of the bottom hole. Taper coining is performed to release excess thickness in the board thickness direction, and then a hole is punched to the desired diameter.
〔発明の実施例〕
以下、本発明の一実施例を第４図により説明する。まず
同図（ａ）に示すように累材板２０に所定形状の下穴２
１〜２３をあけ、次いで同図（ｂ） Ｋ示すように仕上
穴よシ大きなテーパコイニング２４〜２６を行ない、こ
のテーパコイニング２４〜２６時の余肉を下火２１〜２
３に吸収させる。そして、最後に仕上穴２７〜２９をあ
けると、この仕上穴２７〜２９の穴縁には前記テーパコ
イニング２４〜２６によるテーパ状の穴縁２イａ〜２６
ａが残る。[Embodiment of the Invention] An embodiment of the present invention will be described below with reference to FIG. First, as shown in FIG.
1 to 23, then perform large taper coining 24 to 26 on the finishing holes as shown in the figure (b) K.
Let it be absorbed by 3. Then, when finishing holes 27 to 29 are finally drilled, the hole edges of these finishing holes 27 to 29 have tapered hole edges 2a to 26 formed by the taper coinings 24 to 26.
a remains.
このように、テーパコイニング２４〜２６後に仕上穴２
７〜２９を形成するので、テーパコイニング２４〜２６
時における下穴２Ｉ〜２３への余肉は仕上穴２７〜２９
によって除去され、穴の真円度は損われない。しかしな
がら、この方法ではテーパコイニング２４〜２６時の余
肉を下火方向だけに吸収させることが困−な場合が多く
、穴縁２４ａ〜２６ａ周囲の平面度低下を起しやすい。In this way, after taper coining 24-26, finish hole 2
7 to 29, so taper coining 24 to 26
The extra thickness to the prepared holes 2I to 23 at the time is the finished holes 27 to 29.
The roundness of the hole is not compromised. However, in this method, it is often difficult to absorb the excess meat from taper coining 24 to 26 only in the lower heating direction, and the flatness around the hole edges 24a to 26a tends to deteriorate.
第５図は前記実施例の方法を更に改善した本発明の他の
実施例を示す。まず同図（ａ）に示すように素材３０に
第４図と同様に工夫３１−３３をあけ、〜ｊ６を汀なフ
。Ｃ（／）跨、アーハコにツノ）９〜３６により発生す
る余肉を、下火方向だけでなく、テーパコイニング３４
〜３６の先端外径よりもわずかに小さく、かつ仕上穴と
ほぼ等しい円筒径内の板厚方向へ余肉を逃がし、テーパ
；イニング３４〜３６の穴縁周囲の平面度低下を防止す
る。FIG. 5 shows another embodiment of the present invention which further improves the method of the previous embodiment. First, as shown in FIG. 4(a), holes 31-33 are made in the material 30 in the same manner as in FIG. Taper coining 34 not only in the direction of lower heat, but also in the direction of lowering the
Excess thickness is released in the plate thickness direction within a cylindrical diameter that is slightly smaller than the outer diameter of the tip of the innings 34 to 36 and approximately equal to the finished hole, thereby preventing a decrease in flatness around the hole edges of the taper innings 34 to 36.
これによ少、板厚方向への余肉は円筒部３４８〜３６ａ
となる。そして、最後に同図（Ｃ）に示すように仕上穴
３７〜３９−をあけると、円筒部３４８〜３６ａは除去
され、仕上穴３７〜３９の穴縁には前記テーパコイニン
グ３４〜３６によるテーパ状の穴縁３４ｂ〜３６ｂが残
る。Due to this, the extra thickness in the plate thickness direction is the cylindrical portions 348 to 36a.
becomes. Finally, when finishing holes 37 to 39- are bored as shown in FIG. Shape-shaped hole edges 34b to 36b remain.
このように、テーパコイニング３４〜３６時に発生する
余肉を下火方向及び板厚方向の２方向へ吸収させ、その
後仕上穴３７〜３９によって前記余肉を除去するので、
穴３７〜３９の真円度や穴縁３４ｂ〜３６ｂ周囲の平面
度を損わずに、穴縁を面取シ状にテーパ化できる。In this way, the excess metal generated during taper coining 34 to 36 is absorbed in two directions, the lowering direction and the plate thickness direction, and then the excess metal is removed through the finishing holes 37 to 39.
The hole edges can be tapered into a chamfered shape without impairing the roundness of the holes 37 to 39 or the flatness around the hole edges 34b to 36b.
なお、前記各実施例は円穴だけでなく、角穴、楕円穴な
ど異形穴の場合にも適用できる。また電子銃用電極構体
に限らず、広く一般の加工方法にも適用できる。The above embodiments can be applied not only to circular holes but also to irregularly shaped holes such as square holes and elliptical holes. Moreover, it is applicable not only to electrode structures for electron guns but also to a wide range of general processing methods.
以上の説明から明らかな如く、本発明によれば、高精度
に複数個の近接した穴縁を面取り状にテーパ化すること
ができる。従って、本発明の方法を電子銃用電極構体の
加工方法に応用すると、電子ビーム通過孔のピンチを拡
けることなく、主レンズ口径の大きいフォーカス特性、
耐電圧特性の優れた画品質カラー受像管用電子銃が得ら
れる。As is clear from the above description, according to the present invention, a plurality of adjacent hole edges can be chamfered and tapered with high precision. Therefore, when the method of the present invention is applied to a method for processing an electrode structure for an electron gun, the focus characteristic of the main lens with a large diameter can be improved without enlarging the pinch of the electron beam passage hole.
An electron gun for color picture tubes with excellent image quality and withstand voltage characteristics can be obtained.
第１図は穴縁が面取りされていない電極構体の断面図、
第２図は穴縁が′＃Ｊ城シされた電極構体の断面図、第
３図（ａ）〜（Ｃ）は従来の加工方法を示す工程説明図
、第４図（ａ）〜（Ｃ）は本発明の加工方法の一実施例
を示す工程説明図、第５図（ａ）〜（Ｃ）は本発明の加
工方法の他の実施例會示す工程説明図である。
２０、３０・・・・素材、２１〜２３．３１〜３３・・
・・下火、２４〜２６．３４〜３６・・・・テーパコイ
ニング、２４ａ 〜２６８ 、 ３４ｂ 〜３６ｂ−、
、穴練、２７〜２９．３７〜３９・・・・仕上穴。Figure 1 is a cross-sectional view of the electrode structure where the hole edge is not chamfered.
Figure 2 is a cross-sectional view of an electrode structure in which the hole edges are rounded, Figures 3 (a) to (C) are process explanatory diagrams showing the conventional processing method, and Figures 4 (a) to (C ) is a process explanatory diagram showing one embodiment of the processing method of the present invention, and FIGS. 5(a) to (C) are process explanatory diagrams showing other embodiments of the processing method of the present invention. 20, 30...Material, 21-23.31-33...
... Lower fire, 24-26. 34-36... Taper coining, 24a-268, 34b-36b-,
, hole drilling, 27-29. 37-39... finishing hole.
Claims (1)
る板材の穴加工方法において、素材に下穴をあけ、次い
で下穴または下穴方向と板厚方向へ余肉を逃すようにテ
ーパコイニングを行ない、その後所望の径に穴を打抜く
ことを！ｇＬとする板材の大加工方法。In a method of drilling holes in plate materials that forms chamfered taper parts on the hole edges of multiple adjacent holes, a pilot hole is drilled in the material, and then a taper is formed in the pilot hole or in the direction of the pilot hole and in the direction of the plate thickness to release excess material. Perform coining and then punch a hole to the desired diameter! A method for large-scale machining of plate materials with gL.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23130483A JPS60124421A (en) | 1983-12-09 | 1983-12-09 | How to drill holes in plate material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23130483A JPS60124421A (en) | 1983-12-09 | 1983-12-09 | How to drill holes in plate material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60124421A true JPS60124421A (en) | 1985-07-03 |
| JPH0556209B2 JPH0556209B2 (en) | 1993-08-19 |
Family
ID=16921520
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP23130483A Granted JPS60124421A (en) | 1983-12-09 | 1983-12-09 | How to drill holes in plate material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60124421A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111774741A (en) * | 2020-08-14 | 2020-10-16 | 长春理工大学 | A laser drilling method based on tip bright spot-guided compound holes |
-
1983
- 1983-12-09 JP JP23130483A patent/JPS60124421A/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111774741A (en) * | 2020-08-14 | 2020-10-16 | 长春理工大学 | A laser drilling method based on tip bright spot-guided compound holes |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0556209B2 (en) | 1993-08-19 |
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