JP2849823B2 - Burring / shaving composite molding of metal plate and molding method thereof - Google Patents
Burring / shaving composite molding of metal plate and molding method thereofInfo
- Publication number
- JP2849823B2 JP2849823B2 JP1117537A JP11753789A JP2849823B2 JP 2849823 B2 JP2849823 B2 JP 2849823B2 JP 1117537 A JP1117537 A JP 1117537A JP 11753789 A JP11753789 A JP 11753789A JP 2849823 B2 JP2849823 B2 JP 2849823B2
- Authority
- JP
- Japan
- Prior art keywords
- metal plate
- flange
- shaving
- burring
- molding
- 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 - Fee Related
Links
Landscapes
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
Description
【発明の詳細な説明】 （イ）産業上の利用分野 本発明はバーリング及びシェービングの複合加工を施
こした金属板成形物及びその成形方法、そしてその接合
に係り、詳しくは金属板に特殊ポンチ（または異種材）
を接合することがしばしば重要となる鉱工業、宇宙・航
空産業、エレクトロニクス産業、その他生産関連産業等
に於いて用いられる金属板成形物及びその成形方法、そ
してその接合体に関する。The present invention relates to a metal sheet molded article subjected to combined processing of burring and shaving, a method of molding the same, and joining thereof, and more particularly, to a special punch for a metal sheet. (Or dissimilar materials)
TECHNICAL FIELD The present invention relates to a metal sheet molded product used in mining industry, space and aviation industry, electronics industry, other production-related industries, etc., where it is often important to join the same, a molding method thereof, and a joined body thereof.
（ロ）従来の技術 従来、自動車やエレクトロニクス等の分野の大量生産
ラインに組込まれている物体の接合手段として、バット
溶接、かしめ結合、ネジ締結、ろう接等が用いられてい
る。このうち同種の物体、例えば鋼板と鋼板とを接合す
る場合にはバット溶接が広く一般的に使用されており、
他の３種は一応異種物体の接合も可能である。(B) Conventional technology Conventionally, butt welding, caulking, screw fastening, brazing, and the like have been used as means for joining objects incorporated in mass production lines in the fields of automobiles and electronics. Of these, butt welding is widely and generally used when joining objects of the same kind, for example, a steel sheet and a steel sheet,
For the other three types, it is possible to join different kinds of objects.
（ハ）発明が解決しようとする問題点 しかしながら、異種材をも簡便に接合できること、接
合強度に信頼性が高いこと、量産型の生産ラインに簡単
に組込めること、工程数が少ないこと、第三の材料を使
用することなく接合できること等の観点からいえば、上
記従来の手段は必ずしも満足すべき状況ではない。(C) Problems to be solved by the invention However, the ability to easily join different kinds of materials, high reliability in joining strength, easy incorporation into mass production type production lines, small number of processes, From the viewpoint of joining without using the three materials, the above-mentioned conventional means is not always a satisfactory situation.
そこで、異種材をも簡便に接合する手段としてシェー
ビング接合が提案されている。この手段によれば従来の
問題点はほぼ解決できる。Therefore, shaving joining has been proposed as a means for easily joining different kinds of materials. According to this means, the conventional problems can be almost solved.
しかしながら上記シェービング接合においても、深い
下穴を形成できない薄板状の基材に異種材を接合する場
合や、修理その他何らかの理由で接合を解除したい場合
には対応できないという問題点があった。However, the above-mentioned shaving joining has a problem that it cannot cope with a case where a dissimilar material is joined to a thin plate-like base material in which a deep prepared hole cannot be formed, or a case where it is desired to cancel the joining for repair or other reasons.
（ニ）問題点を解決するための手段 本発明は、上述問題点を解決することを目的としたも
ので、薄状金属板に予め穿設された穴を押し拡げてフラ
ンジを形成しつつ、該フランジ内壁にシェービングによ
りテーパ付き角雌ネジを成形することを特徴とするもの
で、この成形方法により、金属板に形成された中空円筒
フランジの内壁に、シェービングによって形成されたテ
ーパ付き角雌ネジを有する金属板成形物が作られるので
ある。(D) Means for Solving the Problems The present invention is intended to solve the above problems, and while expanding a hole previously formed in a thin metal plate to form a flange, A tapered square female screw formed by shaving is formed on the inner wall of a hollow cylindrical flange formed on a metal plate by this shaping method. Is produced.
（ホ）作用 まず、薄状金属板と接合しようとする異種材の特殊ポ
ンチは、その外周面の一部にテーパ付きのシェービング
角雄ネジが形成されている。(E) Function First, a special punch made of a different material to be joined to a thin metal plate has a tapered shaving square male screw formed on a part of its outer peripheral surface.
そこで、該特殊ポンチを薄状金属板に予め形成された
小円孔に押込み、該小円孔を片面から押し拡げるバーリ
ング成形を行い中空円筒フランジを成形しつつ該フラン
ジの内壁をシェービングする。そして、その際発生する
シェービング屑によって特殊ポンチになじむテーパ付き
角雌ネジがフランジの内壁に形成される。Then, the special punch is pushed into a small circular hole formed in advance in a thin metal plate, and burring is performed to push and expand the small circular hole from one side to form a hollow cylindrical flange while shaving the inner wall of the flange. Then, a tapered square internal thread adapted to the special punch is formed on the inner wall of the flange by shaving dust generated at that time.
（ヘ）実施例 以下、図面を交えて、本発明の金属板成形物及びその
成形方法について説明する。(F) Example Hereinafter, the molded metal sheet of the present invention and the molding method thereof will be described with reference to the drawings.
被成形体である薄状金属板１は小円孔２を有しダイス
３上にセットされる。該薄状金属板１とは異種材料で作
られた特殊ポンチ４は薄状金属板１の小円孔２を押拡げ
て該薄状金属板１に中空円筒フランジ５を成形するバー
リング成形と、該中空円筒フランジ５の内壁にシェービ
ング角雌ネジ成形を同時に行うことができるように、先
端が円錐状になっており且つ外周面の少なくとも一部に
は平坦部に続くテーパ付き角雄ネジ６が形成されてい
る。A thin metal plate 1 to be formed has a small circular hole 2 and is set on a die 3. A special punch 4 made of a different material from the thin metal plate 1 burring molding for expanding a small hole 2 of the thin metal plate 1 to form a hollow cylindrical flange 5 in the thin metal plate 1; In order to be able to simultaneously form the shaving square female screw on the inner wall of the hollow cylindrical flange 5, a tapered male screw 6 having a tapered tip and having a flat portion on at least a part of the outer peripheral surface is formed on at least a part of the outer peripheral surface. Is formed.
また、特殊ポンチ４の先端は球状あるいは平坦状でも
差支えない。薄状金属板１がダイス３上にセットされ、
小円孔２が一方方向から特殊ポンチ４の先端で押付けら
れると小円孔２は押し拡げられつつ中空円筒フランジ５
が形成され、更に該中空円筒フランジ５の内壁には、特
殊ポンチ４の外周面に設けられたテーパ付き角雄ネジ６
の働きによりテーパ付き角雌ネジ７が成形されるように
なっている。The tip of the special punch 4 may be spherical or flat. The thin metal plate 1 is set on the die 3,
When the small circular hole 2 is pressed by the tip of the special punch 4 from one direction, the small circular hole 2 is expanded while being expanded.
Is formed on the inner wall of the hollow cylindrical flange 5, and a tapered male screw 6 provided on the outer peripheral surface of the special punch 4.
, The tapered square female screw 7 is formed.
薄状金属板１の小円孔２は軟鋼板の場合、打抜き穴だ
と約２倍、切削穴や焼なまし穴だと約３倍に拡げられ
る。加工しにくい材料場合は小円孔２の周辺を誘導加熱
等の方法で高温にした後、加工することもできる。In the case of a mild steel plate, the small circular hole 2 of the thin metal plate 1 is expanded about twice in the case of a punched hole and about three times in the case of a cut hole or an annealed hole. In the case of a material that is difficult to process, it can be processed after heating the periphery of the small circular hole 2 by a method such as induction heating.
第１図（Ｃ）は成形後の薄状金属板１と、該金属板１
とは異種材料でできた特殊ポンチ４とが接合した状態を
示したものであり、接合の原理は植込みネジ方式と同様
である。薄状金属板１と特殊ポンチ４との接合は、両者
を相対的に捩ることにより解除される。FIG. 1 (C) shows a thin metal plate 1 after molding and the metal plate 1.
Shows a state where the special punch 4 made of a different material is joined, and the principle of joining is the same as that of the implanted screw method. The joining between the thin metal plate 1 and the special punch 4 is released by twisting them relatively.
接合を解除された後の金属板成形物８には新しい異種
材を捩込むことができることはいうまでもないことであ
る。It goes without saying that a new dissimilar material can be screwed into the metal sheet molded product 8 after the joining is released.
次に、金属板成形物８の成形方法について述べる。 Next, a method for forming the metal sheet molded product 8 will be described.
まず、小円孔２が形成された薄状金属板１（第１図
（ａ）参照）をダイス３上にセットする。次に特殊ポン
チ４の先端を小円孔２に押し込み、該小円孔２の片面か
ら押し拡げるバーリング成形を行い中空円筒フランジ５
を成形する（第１図（ｂ）参照）。更に特殊ポンチ４を
押込むと中空円筒フランジ５が完全に成形されると同時
に特殊ポンチ４の外周面に設けられたテーパ付き角雄ネ
ジ６が該中空円筒フランジ５の内壁をシェービングす
る。First, the thin metal plate 1 in which the small circular holes 2 are formed (see FIG. 1A) is set on the die 3. Next, the tip of the special punch 4 is pushed into the small circular hole 2, and burring molding is performed by pressing and expanding from one surface of the small circular hole 2 to form the hollow cylindrical flange 5.
(See FIG. 1 (b)). When the special punch 4 is further pushed in, the hollow cylindrical flange 5 is completely formed, and at the same time, the tapered square male screw 6 provided on the outer peripheral surface of the special punch 4 shaves the inner wall of the hollow cylindrical flange 5.
そして、その際発生するシェービング屑によって特殊
ポンチ４になじむテーパ付き角雌ネジ７がフランジ５の
内壁に形成される（第１図（ｄ）参照）。Then, a tapered square female screw 7 adapted to the special punch 4 is formed on the inner wall of the flange 5 by shaving dust generated at that time (see FIG. 1 (d)).
次に本発明において実験した実施例について述べるこ
とにする。Next, an embodiment of the present invention will be described.
（実施例１） 板厚2.5mmの市販アルミニウム板（A1050）に直径12mm
のドリル穴をあけ、頂角60゜、直径20.0mmでピッチ3mm
のテーパ付き角雄ネジ（シェービングネジ）が形成され
た凸部を有する鋼材（S45C）を油圧プレスを用いて上記
ドリル穴に押込んだ。ダイス内径28.0mmで接合荷重約15
トンでS45C/A1050板の緊密フランジ接合体が得られた。(Example 1) A commercially available aluminum plate (A1050) with a thickness of 2.5 mm and a diameter of 12 mm
Drill hole with a vertical angle of 60mm, diameter of 20.0mm and pitch of 3mm
A steel material (S45C) having a convex portion formed with a tapered square male screw (shaving screw) was pressed into the above-mentioned drill hole using a hydraulic press. Die inner diameter 28.0mm, bonding load approx. 15
In tons, a tight flange joint of S45C / A1050 plate was obtained.
（実施例２） 板厚3.2mm軟鋼板（SPHD）に直径10mmの穴を打抜きダ
イス（内径28.0mm）上にセットしたのち、穴周辺を約60
0℃に高周波誘導加熱し、直ちにシェービング雄ネジ成
形ポンチ（SK3製、頂角60゜、直径20.0mm、テーパ付き
角ネジピッチ3mm、全長6mm）を上記油圧プレスで約10ト
ンの荷重をかけ上記穴に押込んだ。軟鋼板のフランジ内
壁にシェービング雌ネジが形成されていることをポンチ
を取外したのち観察できた。(Example 2) A hole having a diameter of 10 mm was set in a 3.2 mm thick mild steel plate (SPHD) on a punching die (inner diameter: 28.0 mm).
Apply high frequency induction heating to 0 ° C and immediately apply a load of about 10 tons to the shaving male screw forming punch (SK3, apex angle 60 °, diameter 20.0mm, tapered square screw pitch 3mm, total length 6mm) with the above hydraulic press to the above hole. Pressed into. The formation of a shaving female screw on the inner wall of the mild steel plate flange was observed after removing the punch.
尚、実施例１、２ともシェービングネジ成形の際、基
材、異種材（または特殊ポンチ）とも発生する捩り力に
よって回転しがちなので特殊ポンチの頭部を拘束して行
った。In the shaving screw molding in Examples 1 and 2, both the base material and the dissimilar material (or the special punch) tend to rotate due to the torsional force generated, so that the head of the special punch was restrained.
（ト）発明の効果 以上説明したように、本発明は薄金属板状に打抜き等
によって小円孔を穿設し該小円孔に、テーパ付き角雄ネ
ジを有する特殊ポンチを単にプレスで一撃に押込むだけ
て、薄状金属板にバーリング成形と同時にシェービング
成形も行うことができるので、フランジへのネジ立て作
業を容易にするのみならず完璧なフランジ接合を完成す
ることができる。(G) Effect of the Invention As described above, the present invention is to punch a small circular hole into a thin metal plate by punching or the like, and simply press a special punch having a tapered square male screw into the small circular hole with a press. By simply pressing the thin metal plate, burring and shaving can be performed simultaneously with the thin metal plate, so that not only the work of tapping the flange can be facilitated but also perfect flange joining can be completed.
従って、タップ立てやネジのはめ込みの手間もなく、
十分に高速量産ラインに組込むことができる。Therefore, without the need for tapping or screwing,
It can be incorporated into high-speed mass production lines.
また、本発明は薄状金属板を異種材を用いて一挙にバ
ーリング成形／シェービング成形を行い接合できるの
で、特に薄状金属板にセラミックスや硬質金属及びそれ
らの複合材料部材を高速接合するのに有用である。In addition, the present invention can perform burring molding / shaving molding of a thin metal plate at once using different kinds of materials and join them. Useful.
また、同種の材料同士の場合には溶接も可能である。
更に本発明はバーリングとネジ立て、異種材とも接合を
一行程で行うことができ、しかも場合によってはその接
合部分を破壊することなく解除できる点で画期的であ
り、金属板への異種材の接合という観点から本発明の方
法と従来の方法（タッピングねじ法、バット溶接法）と
を比較すると以下のようになり、本発明の方が可能性に
富んだ優れたものであることは明らかである。In the case of the same type of material, welding is also possible.
Furthermore, the present invention is epoch-making in that burring, tapping, and joining of dissimilar materials can be performed in a single step, and in some cases can be released without destroying the joined portion. When the method of the present invention is compared with the conventional methods (tapping screw method, butt welding method) from the viewpoint of joining, it is clear that the present invention is more excellent and more possible. It is.
第１図（ａ）は被成形体である金属板の断面図、第１図
（ｂ）は金属板を特殊ポンチでバーリング成形しつつあ
る状態を示す模式図、第１図（ｃ）は成形された金属板
と特殊ポンチとが結合した状態を示す模式図、第１図
（ｄ）は成形された金属板成形物の断面図である。 図中符号： １……（薄状）金属板、２……小円孔、 ３……ダイス、４……特殊ポンチ（異種材）、 ５……フランジ、 ６……テーパ付き角雄ネジ、 ７……テーパ付き角雌ネジ、 ８……金属板成形物。FIG. 1A is a cross-sectional view of a metal plate as a molded object, FIG. 1B is a schematic diagram showing a state in which the metal plate is being burred with a special punch, and FIG. FIG. 1D is a schematic view showing a state in which the formed metal plate and the special punch are combined, and FIG. 1D is a cross-sectional view of the formed metal plate. Reference numerals in the drawing: 1 (thin) metal plate, 2 ... small circular hole, 3 ... die, 4 ... special punch (different material), 5 ... flange, 6 ... tapered square male screw, 7: Square female screw with taper, 8: Metal plate molded product.
───────────────────────────────────────────────────── フロントページの続き (58)調査した分野(Int.Cl.6，ＤＢ名) F16B 37/02 B21H 3/08 B21D 19/08──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. 6 , DB name) F16B 37/02 B21H 3/08 B21D 19/08
Claims (5)
壁に、シェービングによって形成されたテーパ付き角雌
ネジを有する金属板成形物。1. A molded metal sheet having a tapered square internal thread formed by shaving on the inner wall of a hollow cylindrical flange formed on a metal sheet.
ランジを成形しつつ、該フランジ内壁にシェービングに
よりテーパ付き角雌ネジを成形する方法。2. A method of forming a flange by pressing and expanding a hole previously formed in a metal plate to form a flange, and forming a tapered square internal thread by shaving on the inner wall of the flange.
を有し、上記金属板にバーリングとシェービングの複合
加工を施すための特殊ポンチ。3. A special punch having a tapered square external thread following a flat portion on an outer peripheral surface, and for performing a combined processing of burring and shaving on the metal plate.
を有する特殊ポンチを押し込みフランジを成形しつつ該
フランジ内壁にシェービング雌ネジを成形することによ
り、そのまま両部材を一体的に接合する方法。4. A special punch having a tapered square male screw portion is pressed into a small circular hole of a metal plate to form a flange, and a shaving female screw is formed on the inner wall of the flange. How to join.
れた雌雄一対の接合体。5. A pair of male and female joined bodies formed by the joining method according to claim 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1117537A JP2849823B2 (en) | 1989-05-12 | 1989-05-12 | Burring / shaving composite molding of metal plate and molding method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1117537A JP2849823B2 (en) | 1989-05-12 | 1989-05-12 | Burring / shaving composite molding of metal plate and molding method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02300511A JPH02300511A (en) | 1990-12-12 |
| JP2849823B2 true JP2849823B2 (en) | 1999-01-27 |
Family
ID=14714254
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1117537A Expired - Fee Related JP2849823B2 (en) | 1989-05-12 | 1989-05-12 | Burring / shaving composite molding of metal plate and molding method thereof |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2849823B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111889614A (en) * | 2014-07-07 | 2020-11-06 | 物理***公司 | Method for manufacturing hollow screw |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08226429A (en) * | 1995-02-20 | 1996-09-03 | Sumitomo Forestry Co Ltd | Bolt receiving fitting and fitting for jointing structure member |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0612126B2 (en) * | 1988-01-25 | 1994-02-16 | 輝史 町田 | Special taper screw and its forming method |
-
1989
- 1989-05-12 JP JP1117537A patent/JP2849823B2/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111889614A (en) * | 2014-07-07 | 2020-11-06 | 物理***公司 | Method for manufacturing hollow screw |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH02300511A (en) | 1990-12-12 |
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| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
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| LAPS | Cancellation because of no payment of annual fees |