JPH0970638A - Tap forming pressing method - Google Patents

Tap forming pressing method

Info

Publication number
JPH0970638A
JPH0970638A JP22771795A JP22771795A JPH0970638A JP H0970638 A JPH0970638 A JP H0970638A JP 22771795 A JP22771795 A JP 22771795A JP 22771795 A JP22771795 A JP 22771795A JP H0970638 A JPH0970638 A JP H0970638A
Authority
JP
Japan
Prior art keywords
tap
tap forming
forming
plate material
metal plate
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP22771795A
Other languages
Japanese (ja)
Inventor
Shinji Nakano
真治 中野
Yasuo Kuboki
保夫 窪木
Osamu Miyazaki
修 宮崎
Yasuchika Kudo
保親 工藤
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP22771795A priority Critical patent/JPH0970638A/en
Publication of JPH0970638A publication Critical patent/JPH0970638A/en
Pending legal-status Critical Current

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Abstract

PROBLEM TO BE SOLVED: To provide a tap forming pressing method excellent in the productivity related to a method for executing the tap-working for fixing an electronic parts to a metallic plate material. SOLUTION: A projection part 3 is arranged to the metallic plate material 1 by a front projection formation and therein, an opening work of a preliminary lower hole 5 is executed. Thereafter, the tap-working method is executed by arranging the tap-working part 6 with a tap-forming punch 11 and a tap-forming die 12, and the tap-working time can be shortened and non-washing can be obtd. by unnecessitating a tapping machine and high viscosity working oil, and the process can be made to in-line.

Description

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

【0001】[0001]

【産業上の利用分野】本発明は電子部品固定用などの金
属板材へのタップ加工を行うタップ成形プレス加工方法
に関するものである。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tap forming pressing method for tapping a metal plate material for fixing electronic parts.

【0002】[0002]

【従来の技術】従来の金属板材へのタップ加工の方法に
ついて、図面を用いて説明する。
2. Description of the Related Art A conventional method of tapping a metal plate will be described with reference to the drawings.

【0003】図6(a)〜(c)は従来の金属板材への
タップ加工の方法について説明を行うための要部断面の
工程図である。
FIGS. 6 (a) to 6 (c) are process diagrams of a cross section of a main part for explaining a conventional method of tapping a metal plate material.

【0004】図6(a)は金属板材1に下孔30の開け
加工を行った状態を示し、図6(b)は下孔30の開け
加工後にバーリングプレス加工を行い、予備孔32と突
出部33を加工した状態を示し、図6(c)はバーリン
グプレス加工を行った後に、タッピング工具31を下方
向に回転させながら切削加工、あるいは転造加工による
タッピング加工にて、タップ加工部34を設けた状態を
示したものであり、このような方法・工程により金属板
材1にタップ加工を行っていたものであった。
FIG. 6 (a) shows a state in which the pilot hole 30 is formed in the metal plate material 1, and FIG. 6 (b) is a burring press process after the pilot hole 30 is opened to form a preliminary hole 32 and a protrusion. 6C shows a state in which the portion 33 is processed, and FIG. 6C shows the tapped portion 34 after the burring press processing is performed, while the tapping tool 31 is rotated downward while being cut or tapped by rolling. It shows a state in which the metal plate material 1 is tapped by such a method / process.

【0005】[0005]

【発明が解決しようとする課題】しかしながら前記従来
の方法では、タップ加工に時間がかかり、タッピング機
あるいはタッピングユニットなどが必要であり、タップ
の切削加工あるいは転造加工では高粘度の加工油が必要
であるためにその洗浄工程を必要とし、生産性向上が図
れず、また工程間が分断されるという課題を有したもの
であった。
However, in the above-mentioned conventional method, tapping takes a long time, and a tapping machine or a tapping unit is required, and a high-viscosity working oil is required for tap cutting or rolling. Therefore, the cleaning step is required, the productivity cannot be improved, and the steps are separated from each other.

【0006】本発明は、前記従来の課題を解決しようと
するもので、下孔開けプレス加工とタップ成形パンチお
よびタップ成形ダイによるタップ成形プレス加工にてタ
ップを作成することができるタップ成形プレス加工方法
を提供することを目的とするものである。
The present invention is intended to solve the above-mentioned conventional problems, and tap forming press processing capable of forming a tap by pre-drilling press processing and tap forming press processing using a tap forming punch and a tap forming die. It is intended to provide a method.

【0007】[0007]

【課題を解決するための手段】前記課題を解決するため
に本発明によるタップ成形プレス加工方法は、金属板材
の前方押し出し成形プレス加工を行った所に下孔開けプ
レス加工を行った後、タップ成形パンチおよびタップ成
形ダイを用いて、タップ成形をプレス加工のみで実現す
る加工方法、あるいは、タップ成形プレス加工におい
て、金属板材に下孔開け加工と深度成形部分にぬすみ孔
の加工を事前に行う加工方法としたものである。
In order to solve the above-mentioned problems, a tap forming press working method according to the present invention comprises a tapping after performing a pre-drilling press working on a place where a front extrusion molding working of a metal plate material has been carried out. Using a forming punch and tap forming die, a processing method that realizes tap forming only by pressing, or in tap forming press processing, prepares a pre-drilled hole in a metal plate and a drilled hole in a depth formed part in advance. This is a processing method.

【0008】[0008]

【作用】この方法により、タップ加工の時間が短縮され
て生産性の向上が図れ、タッピング機あるいはタッピン
グユニットなどが不要となり、薄板の金属板材のタップ
成形プレス加工によるひずみの対策が図れ、さらにタッ
プの切削あるいは転造に必要であった高粘度の加工油が
不要となるため、無洗浄化が可能となり、プレス加工の
みでタップ加工ができタップ成形工程のインライン化が
可能となる。
[Operation] By this method, tapping time can be shortened and productivity can be improved, tapping machine or tapping unit is not required, and distortion of thin metal plate material can be prevented by tap forming press work. Since the high-viscosity processing oil required for cutting or rolling is not required, it is possible to eliminate the need for cleaning, and it is possible to perform tap processing only by press processing and inline the tap forming process.

【0009】[0009]

【実施例】以下、本発明の一実施例について図面を参照
しながら説明する。
An embodiment of the present invention will be described below with reference to the drawings.

【0010】図1(a)〜(c)は、同実施例によるタ
ップ成形プレス加工方法について説明するための、要部
断面の工程図である。
FIGS. 1 (a) to 1 (c) are process drawings of a cross section of a main part for explaining the tap forming press working method according to the embodiment.

【0011】図1(a)は例えば鉄あるいは鉄合金や銅
合金で成る、金属板材1に前方押し出しプレス加工(プ
レス機構は図示せず)を行い、凹部4と実質的に板材厚
みを増した押し出し部3を設けた状態を示しており、図
1(b)は前記前方押し出しプレス加工を行った後、下
孔開けプレス加工(プレス加工機構は図示せず)を行
い、予備下孔5を開けた状態を示し、図1(c)は下孔
開けプレス加工を行った後、タップ成形パンチ11およ
びタップ成形ダイ12により、指定サイズのネジ1ピッ
チ分のタップ成形プレス加工を行ってタップ加工部6を
設けた状態を示している。
In FIG. 1A, a metal plate material 1 made of, for example, iron or an iron alloy or a copper alloy is subjected to forward extrusion press working (press mechanism is not shown) to substantially increase the thickness of the recess 4 and the plate material. FIG. 1B shows a state in which the extruded portion 3 is provided. After the front extrusion press working, the pre-drilling press working (the press working mechanism is not shown) is performed, and the preliminary pilot hole 5 is formed. FIG. 1 (c) shows the opened state, and after performing the pre-drilling press working, the tap forming punch 11 and the tap forming die 12 perform the tap forming press processing for one pitch of the screw of the specified size to perform the tap processing. The state which provided the part 6 is shown.

【0012】このように前方押し出し加工による押し出
し部3および凹部4を、下孔開けプレス加工による予備
下孔5と、タップ成形プレス加工によるタップ加工部6
の加工前に行うことにより、金属板材1の厚みがネジ1
ピッチ分以下でもタップ加工部分の板材厚みを増すこと
ができ、実質的な金属板材1の強度の補強ができ、ネジ
締め付け時のトルクアップが図れ、さらに指定サイズの
ネジ1ピッチ分のタップ加工が確実にできるため、強度
アップが可能なタップ加工を行うことができるものであ
る。
As described above, the extruded portion 3 and the recessed portion 4 formed by the forward extrusion process are formed into the preliminary prepared hole 5 formed by the prepared hole forming press process and the tap processed part 6 formed by the tap forming press process.
The thickness of the metal plate material 1 is reduced by the screw 1
Even if the pitch is less than the pitch, the plate thickness of the tapped portion can be increased, the strength of the metal plate 1 can be substantially reinforced, the torque can be increased when tightening the screw, and tapping for one pitch of the specified size screw can be performed. Since it can be surely performed, tap processing capable of increasing strength can be performed.

【0013】また、厚みがネジ1ピッチ分以下の薄板の
金属板材の強度の補強および確実なタップ加工対策とし
ての他の実施例を図2、図3、図4に示す。
Further, another embodiment for reinforcing the strength of a thin metal plate material having a thickness equal to or less than one pitch of a screw and as a reliable tapping countermeasure is shown in FIGS. 2, 3 and 4.

【0014】図2は、薄板の金属板材2を張り出しプレ
ス加工によりへこみ部7と張り出し部8を設け(図2
(a))、次に下孔開けプレス加工により予備下孔5を
開けた後(図2(b))、タップ成形パンチ11とタッ
プ成形ダイ12のタップ成形プレス加工によりタップ加
工部6を設けた(図2(c))状態を示しており、図3
は、薄板の金属板材2を下孔開けプレスにより下孔9を
開け(図3(a))、次にバーリングプレス加工により
突出部13および予備孔10を設けた後(図3
(b))、タップ成形パンチ11とタップ成形ダイ12
のタップ成形プレス加工によりタップ加工部6を設けた
(図3(c))状態を示しており、図4は、薄板の金属
板材2を下孔開けプレス加工により下孔9を開け(図4
(a))、次に折り返しプレス加工により折り返し部1
5と予備下孔14を設けた後(図4(b))、タップ成
形パンチ11とタップ成形ダイ12のタップ成形プレス
加工によりタップ加工部6を設けた状態を示している。
In FIG. 2, a thin metal plate material 2 is stretched and pressed to form a dent portion 7 and a protrusion portion 8 (see FIG. 2).
(A)) Next, after the preliminary pilot hole 5 is opened by the pilot hole punching press work (FIG. 2B), the tapped portion 6 is provided by tap forming press work of the tap forming punch 11 and the tap forming die 12. (FIG. 2 (c)) is shown in FIG.
After forming the pilot hole 9 in the thin metal plate material 2 by the pilot hole punching press (FIG. 3 (a)), and after providing the protrusion 13 and the preliminary hole 10 by the burring press working (FIG. 3 (a)).
(B)), tap forming punch 11 and tap forming die 12
4 shows a state in which the tapped portion 6 is provided by the tap forming press working of FIG. 3 (FIG. 3C), and FIG. 4 shows a pilot hole 9 of the thin metal plate material 2 by the punching press working (FIG. 4).
(A)) Then, the folded-back portion 1 is formed by folding-back press working.
5 and the preliminary pilot hole 14 (FIG. 4B), the tap forming portion 6 is formed by tap forming press processing of the tap forming punch 11 and the tap forming die 12.

【0015】このようにタップ成形プレス加工される周
辺部分の板材厚みを増して、さらに材料を加工硬化させ
ることにより、薄板の金属板材2の強度補強を行い、指
定サイズのネジ1ピッチ分のタップ加工を行うことがで
きる。
By thus increasing the thickness of the plate material in the peripheral portion to be tapped and pressed, and further hardening the material by work hardening, the strength of the thin metal plate material 2 is strengthened, and taps for one pitch of screw of the specified size are tapped. Processing can be performed.

【0016】また図5(a)から図5(d)は板材厚み
を増す加工をしないで、薄板の金属板材2にタップ加工
を行う他の実施例を示したものであり、薄板の金属板材
2へのタップ成形プレス加工により発生するひずみ対策
として、タップ成形プレス加工における深度成形部分
に、下孔開け加工とぬすみ孔加工を行う加工方法につい
て説明する。
5 (a) to 5 (d) show another embodiment in which the thin metal plate material 2 is tapped without increasing the thickness of the plate material. The thin metal plate material is shown in FIG. As a countermeasure against the strain generated by the tap forming press working to No. 2, a processing method of performing a pilot hole forming process and a blind hole forming process in the depth forming portion in the tap forming press process will be described.

【0017】図5(a)および図5(b)は薄板の金属
板材2に下孔開けプレス加工による予備下孔17開け
と、同時にぬすみ孔プレス加工によるタップ成形プレス
加工時のひずみ発生部の深度成形部分16にぬすみ孔1
8を開けるかぎ孔形状の下孔ぬすみ孔プレス加工を行っ
た状態を示しており、図5(c)および図5(d)は前
記下孔ぬすみ孔プレス加工を行った後、タップ成形パン
チ11とタップ成形ダイ12によりタップ成形プレス加
工を行い、タップ加工部6を設けた状態を示している。
FIGS. 5 (a) and 5 (b) show the strain-generating portion at the time of tap forming press working by pre-drilling press forming by pre-punching press forming on the thin metal plate material 2 and simultaneously by tapping press forming by thin hole punching. Depth forming part 16 with a hole 1
FIG. 5C shows a state where keyhole-shaped pilot holes are punched in the shape of a keyhole, and FIGS. 5C and 5D show the tapped punch 11 after the pilot holes are punched in the holes. And tap forming die 12 is used to perform tap forming press processing, and a tap processing portion 6 is provided.

【0018】このように下孔開けプレス加工と同時にぬ
すみプレス加工を行う下孔ぬすみ孔プレス加工で、予備
下孔17およびぬすみ孔18を開けることにより、指定
サイズのネジ1ピッチ分の加工ができない、薄板の金属
板材2へのタップ成形プレス加工時に発生する深度成形
部分16のひずみを防ぐことができ、薄板の金属板材2
への有効なタップ成形プレス加工が可能となるものであ
る。
In this way, the preliminary pilot hole 17 and the dummy hole 18 are opened by the pilot hole punching press working at the same time as the pilot punching press working, so that it is impossible to process one pitch of the screw of the designated size. It is possible to prevent the distortion of the depth forming portion 16 that occurs during the tap forming press working on the thin metal plate material 2, and the thin metal plate material 2 can be prevented.
It enables effective tap forming and press working.

【0019】なお、前記実施例では下孔ぬすみ孔プレス
加工による、予備下孔17およびぬすみ孔18の形状を
図5(a)のようなかぎ孔の形状としたが、薄板の金属
板材2へのタップ成形プレス加工時のひずみが防止でき
る形状であれば、特に形状が限定されるものではなく、
また、予備下孔17とぬすみ孔18を同時でなく、別々
に加工してもよい。
In the above-described embodiment, the preliminary pilot hole 17 and the spare hole 18 are formed into the key holes as shown in FIG. The shape is not particularly limited as long as it is a shape that can prevent distortion during tap forming press working,
Further, the preliminary pilot hole 17 and the recessed hole 18 may be processed separately, not simultaneously.

【0020】さらに前記実施例ではタップ成形プレス加
工の取り数を1ヶ取りとしたが、2ヶ取り、3ヶ取り、
あるいはそれ以上の取り数においても加工することが可
能である。
Further, in the above-described embodiment, the number of tap forming presses taken is one, but two and three.
Alternatively, it is possible to process even more than that.

【0021】[0021]

【発明の効果】以上のように本発明によるタップ成形プ
レス加工方法は、タップ加工の時間が短縮できて生産性
の向上が図れ、タッピング機あるいはタッピングユニッ
トなどが不要であり、タップの切削あるいは転造加工時
に必要な高粘度の加工油が不要となるため無洗浄化が可
能となり、タップ成形プレス加工工程のインライン化が
でき、全ての加工がプレス加工でできるため、一面のプ
レス金型内において全ての加工が可能となる。
As described above, in the tap forming press working method according to the present invention, the tap working time can be shortened, the productivity can be improved, and the tapping machine or the tapping unit is not required. No need for high-viscosity processing oil required during manufacturing, so no cleaning is required, and tap forming press processing can be done in-line, and all processing can be performed by press processing, so in a single-sided press die All processing is possible.

【0022】また、金属板材1に前方押し出し成形プレ
ス加工を前もって行うことにより、指定サイズのネジ1
ピッチ分のタップ成形プレス加工ができるため、締め付
け強度アップができ、あるいは薄板の金属板材2に下孔
ぬすみ孔プレス加工を前もって行うことにより、指定サ
イズのネジ1ピッチ分のタップ成形プレス加工ができな
い薄板の金属板材2への、タップ成形プレス加工時の深
度成形部分16でのひずみを防いだタップ加工が可能と
なる。
Further, by subjecting the metal plate material 1 to the forward extrusion molding press work in advance, the screw 1 of the specified size can be obtained.
Since tap forming press work for the pitch can be performed, tightening strength can be increased, or tap forming press work for one pitch of the screw of the specified size cannot be performed by performing the preliminary hole slime hole press work on the thin metal plate material 2 in advance. It is possible to perform tap processing on the thin metal plate material 2 while preventing distortion in the depth forming portion 16 during tap forming press processing.

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

【図1】本発明の一実施例におけるタップ成形プレス加
工方法を説明する要部断面の工程図
FIG. 1 is a process diagram of a cross section of a main part for explaining a tap forming press working method according to an embodiment of the present invention.

【図2】同他の実施例におけるタップ成形プレス加工方
法を説明する要部断面の工程図
FIG. 2 is a process drawing of a cross section of a main part for explaining a tap forming press working method according to another embodiment.

【図3】同他の実施例におけるタップ成形プレス加工方
法を説明する要部断面の工程図
FIG. 3 is a process drawing of a cross section of a main part for explaining a tap forming press working method according to another embodiment.

【図4】同他の実施例におけるタップ成形プレス加工方
法を説明する要部断面の工程図
FIG. 4 is a process drawing of a cross section of a main part for explaining a tap forming press working method according to another embodiment.

【図5】(a)他の実施例における下孔ぬすみ孔プレス
加工の部分断面平面図 (b)同部分断面側面図 (c)同タップ加工後の部分断面平面図 (d)同タップ加工工程の要部断面図
FIG. 5A is a partial cross-sectional plan view of the lower hole through-hole press working in another embodiment. FIG. 5B is a partial cross-sectional side view of the same. FIG. 5C is a partial cross-sectional plan view of the same after tapping. Sectional view of the main part of

【図6】従来のタップ加工方法を説明する要部断面の工
程図
FIG. 6 is a process diagram of a cross section of a main part for explaining a conventional tapping method.

【符号の説明】[Explanation of symbols]

1 金属板材 2 薄板の金属板材 3 押し出し部 4 凹部 5 予備下孔 6 タップ加工部 7 へこみ部 8 張り出し部 9 下孔 10 予備孔 11 タップ成形パンチ 12 タップ成形ダイ 13 突出部 14 予備下孔 15 折り返し部 16 深度成形部分 17 予備下孔 18 ぬすみ孔 DESCRIPTION OF SYMBOLS 1 Metal plate material 2 Thin metal plate material 3 Extruded part 4 Recessed part 5 Preparatory prepared hole 6 Tap processed part 7 Indented part 8 Overhang part 9 Prepared hole 10 Preliminary hole 11 Tap forming punch 12 Tap forming die 13 Protruding part 14 Preparatory prepared hole 15 Folded back Part 16 Depth forming part 17 Preliminary pilot hole 18 Neck hole

───────────────────────────────────────────────────── フロントページの続き (72)発明者 工藤 保親 大阪府門真市大字門真1006番地 松下電器 産業株式会社内 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Yasushika Kudo 1006 Kadoma, Kadoma City, Osaka Prefecture Matsushita Electric Industrial Co., Ltd.

Claims (2)

【特許請求の範囲】[Claims] 【請求項1】 金属板に前方押し出し成形などにより板
厚を増加させる加工をし、この加工部分に予備下孔加工
を行った後、タップ成形パンチとタップ成形ダイを用い
て上下方向のプレス加工によりタップ加工を行うタップ
成形プレス加工方法。
1. A metal plate is processed to increase the plate thickness by, for example, forward extrusion molding, and after preliminary pre-drilling is performed on this processed portion, vertical pressing is performed using a tap forming punch and a tap forming die. A tap forming press processing method that performs tap processing with.
【請求項2】 金属板に予備下孔とタップ成形プレス加
工によるひずみの発生部分にぬすみ孔加工を行った後、
タップ成形パンチとタップ成形ダイを用いて上下方向の
プレス加工によりタップ加工を行うタップ成形プレス加
工方法。
2. A metal plate is preliminarily prepared, and a hole is formed in a portion where strain is generated by tap forming press work, and then,
A tap forming press processing method that performs tap processing by vertical pressing using a tap forming punch and a tap forming die.
JP22771795A 1995-09-05 1995-09-05 Tap forming pressing method Pending JPH0970638A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP22771795A JPH0970638A (en) 1995-09-05 1995-09-05 Tap forming pressing method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP22771795A JPH0970638A (en) 1995-09-05 1995-09-05 Tap forming pressing method

Publications (1)

Publication Number Publication Date
JPH0970638A true JPH0970638A (en) 1997-03-18

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Family Applications (1)

Application Number Title Priority Date Filing Date
JP22771795A Pending JPH0970638A (en) 1995-09-05 1995-09-05 Tap forming pressing method

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JP (1) JPH0970638A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008183642A (en) * 2007-01-29 2008-08-14 Honda Motor Co Ltd Screw forming tool and metallic member with screw part formed by screw forming tool
CN115246060A (en) * 2021-04-27 2022-10-28 博世华域转向***(烟台)有限公司 Machining method for threaded hole of stamping swing yoke

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008183642A (en) * 2007-01-29 2008-08-14 Honda Motor Co Ltd Screw forming tool and metallic member with screw part formed by screw forming tool
CN115246060A (en) * 2021-04-27 2022-10-28 博世华域转向***(烟台)有限公司 Machining method for threaded hole of stamping swing yoke

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