JPH0122048B2 - - Google Patents
Info
- Publication number
- JPH0122048B2 JPH0122048B2 JP57161236A JP16123682A JPH0122048B2 JP H0122048 B2 JPH0122048 B2 JP H0122048B2 JP 57161236 A JP57161236 A JP 57161236A JP 16123682 A JP16123682 A JP 16123682A JP H0122048 B2 JPH0122048 B2 JP H0122048B2
- Authority
- JP
- Japan
- Prior art keywords
- thin metal
- metal plate
- groove
- depth
- mark
- 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.)
- Expired
Links
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
- B21D17/00—Forming single grooves in sheet metal or tubular or hollow articles
- B21D17/02—Forming single grooves in sheet metal or tubular or hollow articles by pressing
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Bending Of Plates, Rods, And Pipes (AREA)
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
Description
【発明の詳細な説明】
〔発明の技術分野〕
この発明は電子銃部品用金属薄板の曲げ用溝加
工方法に関する。DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to a method for forming grooves for bending thin metal plates for electron gun parts.
従来、ブラウン管用電子銃部品例えばヒータ
ー・ストラツプの一部に曲げ加工を施す際、曲げ
易くするためと、曲げ位置を決めるために、第１
図に示すように金属薄板１にコイニンゲ工具２の
凸部３により溝４を加工している。この場合、コ
イニング加工による溝４の深さを一定の範囲に加
工しなければ、亀裂、破断が発生する。
Conventionally, when bending a part of an electron gun component for a cathode ray tube, such as a heater strap, a first
As shown in the figure, a groove 4 is formed in a thin metal plate 1 using a convex portion 3 of a coining tool 2. In this case, unless the depth of the groove 4 is controlled within a certain range by coining, cracks and breaks will occur.
そこで、従来、コイニング加工後、溝４の深さ
が一定の範囲に加工できているかどうか、投影
器、ダイヤルゲージ付測定器等により測定を行な
つていたが、溝４の巾や深さが狭いため、測定が
困難で時間を多く費やしていた。 Therefore, conventionally, after coining processing, measurements were carried out using a projector, a measuring device with a dial gauge, etc. to check whether the depth of the groove 4 was machined within a certain range. Due to the small size, measurements were difficult and time consuming.
この発明の目的は、溝の深さを測定する必要の
ない電子銃部品用金属薄板の曲げ用溝加工方法を
提供することである。
SUMMARY OF THE INVENTION An object of the present invention is to provide a method for forming grooves for bending thin metal plates for electron gun parts, which does not require measuring the depth of the grooves.
この発明は、電子銃部品用金属薄板にコイニン
グ工具により曲げ用溝を加工する際、同時に刻印
マーク加工を行ない、このマークが上記金属薄板
に刻印された時、所定範囲の深さの溝が得られる
ようにした電子銃部品用金属薄板の曲げ用溝加工
方法である。
In this invention, when a bending groove is formed on a thin metal plate for electron gun parts using a coining tool, an engraved mark is formed at the same time, and when this mark is engraved on the thin metal plate, a groove with a predetermined range of depth is obtained. This is a method of forming grooves for bending a thin metal plate for electron gun parts.
この発明の曲げ用溝加工方法は、第２図に示す
ように構成され、コイニング工具５の一端面に
は、溝加工用凸部６を刻印マーク用凸部７が設け
られている。そして、このコイニング工具５によ
り電子銃部品用金属薄板８に曲げ用溝９を加工す
ると、第３図及び第４図に示すような溝９と刻印
マーク１０が得られるが、この発明では、曲げ用
溝９を加工する際、同時に線状刻印マーク加工を
行ない、刻印マーク１０が金属薄板８に刻印され
た時、所定範囲の深さの溝９が自動的に得られ
る。
The bending groove machining method of the present invention is constructed as shown in FIG. 2, in which a groove machining convex portion 6 and a marking mark convex portion 7 are provided on one end surface of the coining tool 5. When a bending groove 9 is formed in the thin metal plate 8 for electron gun parts using the coining tool 5, the groove 9 and the marking mark 10 as shown in FIGS. 3 and 4 are obtained. When processing the groove 9, a linear stamp mark is processed at the same time, and when the stamp mark 10 is stamped on the thin metal plate 8, the groove 9 having a depth within a predetermined range is automatically obtained.
即ち、ブラウン管用電子銃部品例えば第５図に
示すようなヒーター・ストラツプの加工を行なう
場合、溝９の深さの加工範囲は0.09〜0.13mmであ
る。従つて、寸法Ｈを0.09mmにとり、寸法ｈを
0.01〜0.05ｍにすれば、刻印マーク１０が金属薄
板８に加工された時所定の深さの溝９が得られ
る。 That is, when processing an electron gun component for a cathode ray tube, such as a heater strap as shown in FIG. 5, the depth range of the groove 9 is 0.09 to 0.13 mm. Therefore, take the dimension H to 0.09mm and make the dimension h
If the depth is 0.01 to 0.05 m, a groove 9 with a predetermined depth can be obtained when the stamp mark 10 is processed into the thin metal plate 8.
ここで、刻印マーク１０が金属薄板８に刻印さ
た時、所定範囲の深さの曲げ用溝９が自動的に得
られる理由について、説明する。 Here, the reason why the bending groove 9 having a depth within a predetermined range is automatically obtained when the marking mark 10 is stamped on the thin metal plate 8 will be explained.
即ち、上記のように0.25mmの厚さの金属薄板８
を折曲げるためには、溝９の深さは0.09〜0.13mm
の範囲になければならない。そこで、この発明で
は、溝９の深さが0.09〜0.13mmの範囲にあるかど
うかを、深さが0.01〜0.05mmの浅いキズを付け視
認により確認出来るようにしている。 That is, as mentioned above, a thin metal plate 8 with a thickness of 0.25 mm is
In order to bend the groove 9, the depth should be 0.09~0.13mm.
must be within the range of Therefore, in the present invention, whether the depth of the groove 9 is in the range of 0.09 to 0.13 mm can be visually confirmed by making a shallow scratch with a depth of 0.01 to 0.05 mm.
この浅いキズとは刻印マーク１０のことであ
り、金属薄板８に溝加工を行なつた際、もし刻印
マーク１０が付いてないと、コイニング工具５の
溝加工用凸部６が金属薄板８内に何処まで入つた
かその程度が判らない。従つて、溝９の深さは
0.09〜0.13mmの所定範囲にあるどうか、視認でな
く従来のように測定器による測定が必要になる。 This shallow scratch refers to the stamp mark 10, and if the stamp mark 10 is not made when grooving the thin metal plate 8, the groove machining convex part 6 of the coining tool 5 will be inside the thin metal plate 8. I don't know how far it got into the area. Therefore, the depth of groove 9 is
Whether it is within the predetermined range of 0.09 to 0.13 mm requires measurement using a measuring device as in the past, rather than visual confirmation.
しかし、この発明のように金属薄板８に浅いキ
ズつまり刻印マーク１０が付けば、当然、上記所
定範囲の深さの溝９が金属薄板８に刻印されたと
判断して良く、溝９に対し従来のように測定器に
よる測定をする必要がない。つまり、金属薄板８
に刻印マーク１０が付くかどうかを視認するだけ
で、自動的に所定範囲の深さの溝９が金属薄板８
に刻印されたことになる。 However, if there is a shallow scratch, that is, a stamp mark 10, on the thin metal plate 8 as in the present invention, it can naturally be determined that the groove 9 with a depth within the above-mentioned predetermined range has been stamped on the thin metal plate 8, and There is no need to measure using a measuring device. In other words, thin metal plate 8
Just by visually checking whether the engraving mark 10 is attached to the thin metal plate 8, the groove 9 with a predetermined depth is automatically formed on the thin metal plate 8.
It would have been engraved on it.
この発明によれば、金属薄板８にコイニング工
具５により曲げ用溝９を加工する際、同時に刻印
マーク１０の加工を行なつているので、刻印マー
ク１０が金属薄板８に刻印された時、所定範囲の
深さの溝９が自動的に極めて容易に得られる。従
つて、この発明では、従来のような投影器、ダイ
ヤルゲージ付測定器等による測定は不要となり、
作業時間も著しく短縮された。
According to this invention, when the bending groove 9 is formed on the thin metal plate 8 by the coining tool 5, the stamp mark 10 is simultaneously processed, so that when the stamp mark 10 is stamped on the thin metal plate 8, it is Grooves 9 of a range of depths can be obtained automatically and very easily. Therefore, this invention eliminates the need for measurements using conventional projectors, measuring instruments with dial gauges, etc.
Working time was also significantly reduced.
又、その他の効果としては、
曲げ位置が正確に決まり曲げ易い、
亀裂、破断が発生しない、
強度的に安定している、
刻印マークが形成されると所定の深さの溝が
得られたことが判別出来る。 In addition, other effects include: the bending position is accurately determined and it is easy to bend; no cracks or breaks occur; the strength is stable; and when the engraved mark is formed, a groove of a predetermined depth can be obtained. can be determined.
第１図は従来の電子銃部品用金属薄板の曲げ用
溝加工方法を示す断面図、第２図はこの発明の一
実施例に係る電子銃部品用金属薄板の曲げ用溝加
工方法を示す断面図、第３図及び第４図はこの発
明の方法により得られた溝と刻印マークを拡大し
て示す断面図、第５図ａ，ｂはこの発明の方法を
適用した具体例を示す側面図と裏面図である。
５……コイニング工具、６……溝加工用凸部、
７……刻印マーク用凸部、８……金属薄板、９…
…溝、１０……刻印マーク。
FIG. 1 is a cross-sectional view showing a conventional method for forming grooves for bending a thin metal plate for electron gun parts, and FIG. 2 is a cross-sectional view showing a method for forming bending grooves for a thin metal plate for electron gun parts according to an embodiment of the present invention. Figures 3 and 4 are enlarged sectional views showing the grooves and stamp marks obtained by the method of the present invention, and Figures 5a and b are side views showing a specific example to which the method of the present invention is applied. and a back view. 5... Coining tool, 6... Convex part for groove machining,
7...Convex part for engraving mark, 8...Thin metal plate, 9...
...Groove, 10...engraved mark.
Claims (1)
を加工する電子銃部品用金属薄板の曲げ用溝加工
方法において、 上記工具の加工面には、曲げ用溝加工凸部とこ
の曲げ用溝加工凸部より高さの低い刻印マーク用
凸部が設けられ、この工具により上記曲げ用溝を
形成したとき、上記刻印マーク用凸部による刻印
マークの有無により上記曲げ用溝の深さの良否を
判定することを特徴とする電子銃部品用金属薄板
の曲げ用溝加工方法。[Claims] 1. A bending groove processing method for a thin metal plate for electron gun parts in which a bending groove is formed in a thin metal plate for electron gun parts using a tool, wherein the processing surface of the tool has a bending groove processing convex part. A convex part for an engraved mark is provided which is lower in height than the convex part for processing a bending groove, and when the bending groove is formed by this tool, the shape of the bending groove is determined by the presence or absence of an engraved mark by the convex part for an engraving mark. 1. A method for processing grooves for bending a thin metal plate for electron gun parts, the method comprising determining whether the depth is acceptable or not.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57161236A JPS5950916A (en) | 1982-09-16 | 1982-09-16 | Method for coining groove for bending metallic sheet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57161236A JPS5950916A (en) | 1982-09-16 | 1982-09-16 | Method for coining groove for bending metallic sheet |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5950916A JPS5950916A (en) | 1984-03-24 |
| JPH0122048B2 true JPH0122048B2 (en) | 1989-04-25 |
Family
ID=15731221
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57161236A Granted JPS5950916A (en) | 1982-09-16 | 1982-09-16 | Method for coining groove for bending metallic sheet |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5950916A (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002224773A (en) * | 2001-01-31 | 2002-08-13 | Chuo Motor Wheel Co Ltd | Automotive steel wheel and method of manufacturing the automotive steel wheel |
| JP2010082633A (en) * | 2008-09-29 | 2010-04-15 | Dowa Metaltech Kk | Bending method of metal sheet, and electric-electronic component |
| JP2015080803A (en) * | 2013-10-23 | 2015-04-27 | オリンパス株式会社 | Flexure processing method and device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5510454B2 (en) * | 1974-02-28 | 1980-03-17 |
-
1982
- 1982-09-16 JP JP57161236A patent/JPS5950916A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5950916A (en) | 1984-03-24 |
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