JPS6390369A - Stud for stud welding and its production - Google Patents

Stud for stud welding and its production

Info

Publication number
JPS6390369A
JPS6390369A JP23667086A JP23667086A JPS6390369A JP S6390369 A JPS6390369 A JP S6390369A JP 23667086 A JP23667086 A JP 23667086A JP 23667086 A JP23667086 A JP 23667086A JP S6390369 A JPS6390369 A JP S6390369A
Authority
JP
Japan
Prior art keywords
stud
welding
cylindrical body
welding base
length
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
Application number
JP23667086A
Other languages
Japanese (ja)
Other versions
JPH0688139B2 (en
Inventor
Isao Suematsu
末松 功
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.)
NIPPON DORAIBUITSUTO KK
Japan Drive It Co Ltd
Original Assignee
NIPPON DORAIBUITSUTO KK
Japan Drive It 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 NIPPON DORAIBUITSUTO KK, Japan Drive It Co Ltd filed Critical NIPPON DORAIBUITSUTO KK
Priority to JP61236670A priority Critical patent/JPH0688139B2/en
Publication of JPS6390369A publication Critical patent/JPS6390369A/en
Publication of JPH0688139B2 publication Critical patent/JPH0688139B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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  • Welding Or Cutting Using Electron Beams (AREA)
  • Butt Welding And Welding Of Specific Article (AREA)

Abstract

PURPOSE:To select material of a cylindrical body without being restricted by the weldability by depositing the welding base on one end of the cylindrical body having an internal screw extending over the overall length. CONSTITUTION:The cylindrical body 2 forming the internal screws 3 extending over the overall length of its inside is cut to the prescribed length. Furthermore, the welding base 4 provided with a projection 5 is formed by the press forming. Next, one end 6 of the cylindrical body 2 is stuck closely to the periphery 9 of the welding base 4 and the contact surfaces are deposited and joined together to form a stud 1. Accordingly, a different kind of metal material can be used for each member. Since the same kind material as that of beam metal to be deposited or close to it can be used only for the welding base 4, the material of the cylindrical body 2 can be selected without being restricted by the weldability. Furthermore, since plenty of length of the internal screw part 3 with respect to the overall length of the stud is taken and besides, there is no imperfect screw part on the tip part of the internal screw 3, the overall length of the stud can be shortened in order to obtain the same screw joining length.

Description

【発明の詳細な説明】 〔産業上の利用分野〕 ゛ 本発明はスタッド溶接に用いられる内ネジを有する筒状
のスタッド及びその製造方法に関する。
DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a cylindrical stud with an internal thread used for stud welding and a method for manufacturing the same.

〔従 来 技 術〕[Traditional technique]

スタッド溶接は周知のように、アーク放電によって発生
する熱により金属材料からなるスタッドを母材へ溶接す
る方法である。
As is well known, stud welding is a method of welding a stud made of a metal material to a base metal using heat generated by arc discharge.

このようなスタッド溶接に用いられるスタッドの一種と
して、内ネジを有する筒状のスタッドが従来から多く使
用されている。この種のスタッドは、壁面等の母材上に
器具をネジ化めするような場合に適しており、スタッド
の一例の側断面図を第2図(a)に示す。
As a type of stud used in such stud welding, a cylindrical stud having an internal thread has been widely used. This type of stud is suitable for screwing an appliance onto a base material such as a wall surface, and a side sectional view of an example of the stud is shown in FIG. 2(a).

スタッド1における筒体2の内側には内ネジ3が形成さ
れ、その先端部分が溶接基部4となっている。この溶接
基部4は母材と溶着される部分であり、その先端中央部
にはアーク放電の開始を容易とするための突起5が形成
されている。なお、第2図(b)は第2図(a)のスタ
ッドの溶接基部の平面図である。
An internal thread 3 is formed inside the cylindrical body 2 of the stud 1, and the tip thereof serves as a welding base 4. This welding base 4 is a part to be welded to the base metal, and a protrusion 5 is formed at the center of its tip to facilitate the initiation of arc discharge. Note that FIG. 2(b) is a plan view of the welded base of the stud in FIG. 2(a).

かかる従来の内ネジを有する筒状のスタッドを製造する
ためには、棒状体を所定の長さに切断し、次にこの切断
された棒状体の先端部を突起を含む溶接基部に加工し、
更に棒状体の他端から軸に沿って穴あけ、ネジ切り等の
加工をしている。
In order to manufacture such a conventional cylindrical stud with an internal thread, a rod-shaped body is cut to a predetermined length, and then the tip of the cut rod-shaped body is processed into a welding base including a protrusion.
Furthermore, drilling, threading, etc. are performed along the axis from the other end of the rod-shaped body.

〔発明が解決しようとする問題点〕[Problem that the invention seeks to solve]

第2図(a)(b)に示したような従来の内ネジを有す
る筒状のスタッドは棒状体等から一体的に作られるので
、筒体及び溶接基部は必然的に同一の金属材料となる。
Conventional cylindrical studs with internal threads as shown in Figures 2(a) and (b) are made integrally from a rod-shaped body, so the cylindrical body and the welding base are necessarily made of the same metal material. Become.

ところで溶接性を向上させるためには、スタッドの溶接
基部の材質を母材の材質と同種もしくは近いものとしな
ければならないので、このように一体的に作られるもの
はスタッド全体が母材もしくはそれに近い材質となり、
高価な材料を不必要な部分まで使用することにもなる。
By the way, in order to improve weldability, the material of the welding base of the stud must be the same or similar to the material of the base metal, so for studs that are made integrally like this, the entire stud must be made of the base material or close to it. The material is
This also means using unnecessary expensive materials.

また内ネジを有する筒体に要求される機能に適合しない
場合も生ずる。逆に内ネジ付き筒体に適した材質を用い
たときは、溶接性を犠牲にしなければならいない場合が
ある。即ち、スタッド溶接用の鋼材は炭素量が少ないも
のが好ましい。しかしながら内ネジ付き筒体としてはあ
る程度以上のネジ部の固さを必要とする場合がある。
Furthermore, there may be cases where the function required for a cylindrical body having an internal thread is not met. Conversely, when a material suitable for an internally threaded cylinder is used, weldability may have to be sacrificed. That is, the steel material for stud welding preferably has a low carbon content. However, as a cylindrical body with an internal thread, the threaded portion may need to have a certain degree of hardness.

更に、第2図(a)から明らかなように、棒状体の穴あ
け加工をする場合、穴あけ用の切削ドリル先端による円
錐部分はネジ切りが出来ない。このためネジ部がない長
さlが大となり、相対的に内ネジ部分が短くなるという
欠点がある。また、次に穴にネジ切りバイトもしくはタ
ップを回転させながら挿入して内ネジを切っていく場合
、平行な穴の終端付近はバイト等の先端部によって切ら
れた不完全な内ネジとなる。
Furthermore, as is clear from FIG. 2(a), when drilling a rod-shaped body, the conical portion formed by the tip of the drilling cutting drill cannot be threaded. For this reason, there is a drawback that the length l without the threaded portion becomes large, and the internal threaded portion becomes relatively short. Further, when the internal thread is cut by inserting a thread cutting tool or tap into the hole while rotating, the portion near the end of the parallel hole becomes an incomplete internal thread cut by the tip of the tool.

このため有効な内ネジ部分の長さは更に短くなってしま
う。
Therefore, the effective length of the internal thread portion becomes even shorter.

また、このような棒状体を切削加工してスタッドを製造
する従来の方法は、生産性が低くコストが高いという問
題があった。
Moreover, the conventional method of manufacturing studs by cutting such a rod-shaped body has the problem of low productivity and high cost.

〔問題点を解決するための手段〕[Means for solving problems]

本発明はかかる問題点のないスタッド溶接用のスタッド
及びその製造方法を提供するものである。
The present invention provides a stud for stud welding and a method for manufacturing the same that does not have such problems.

即ち、本発明は、全長にわたって内ネジを有する筒体の
一端に、溶接基部が溶着されてなるスタッド溶接用のス
タッドを提供するものであり、更に、全長にわたって内
ネジを有する所定の長さの筒体を形成する工程と、金属
板を成形することにより溶接基部を形成する工程と、前
記工程で得られた筒体の一端と溶接基部の周縁を接触さ
せ、該接触部分を抵抗溶接により溶着する工程とを有す
るスタッド溶接用のスタッドの製造方法を提供するもの
である。
That is, the present invention provides a stud for stud welding in which a welding base is welded to one end of a cylindrical body that has internal threads over its entire length, and further includes a stud of a predetermined length that has internal threads over its entire length. a step of forming a cylindrical body; a step of forming a welding base by molding a metal plate; bringing one end of the cylindrical body obtained in the step into contact with the periphery of the welding base, and welding the contact portion by resistance welding. A method of manufacturing a stud for stud welding is provided.

〔実 施 例〕〔Example〕

次に本発明の実施例を図面に基づいて説明する。 Next, embodiments of the present invention will be described based on the drawings.

第1図は本発明のスタッド溶接用のスタッドを示す側断
面図である。スタッドlは筒体2及び溶接基部4からな
り、筒体2の内面には全長にわたって内ネジ3が形成さ
れ、また、溶接基部4には突起5が設けられている。筒
体2の一端6と溶接基部4の周縁は溶着されて結合して
いる。
FIG. 1 is a side sectional view showing a stud for stud welding according to the present invention. The stud 1 consists of a cylindrical body 2 and a welding base 4. An internal thread 3 is formed on the inner surface of the cylindrical body 2 over its entire length, and a protrusion 5 is provided on the welding base 4. One end 6 of the cylindrical body 2 and the peripheral edge of the welding base 4 are welded together.

このように筒体2と溶接基部4を溶着により結合してス
タッドを形成するので、各部材は別種の金属材料を使用
することができる。例えば、筒体を軟鋼、溶接基部をホ
ーロー用鉄板(前記軟鋼の炭素含有量よりさらに炭素量
の少ないもの)から作られたものを挙げることができる
Since the cylindrical body 2 and the welding base 4 are joined together by welding to form a stud in this way, different types of metal materials can be used for each member. For example, one in which the cylindrical body is made of mild steel and the welding base is made of an enameled iron plate (which has a lower carbon content than the above-mentioned mild steel) can be mentioned.

次に第1図のスタッドの製造例を第3図(a)〜(d)
及び第4図(a)〜(C)によって説明する。先ず第3
図(a)に示すように、予め内ネジ3を形成した筒体2
を用意し、これを所定の長さの筒体とするため、−点鎖
線の位置で切断していく。この切断された筒体2を第3
図(b)に示す。また、第3図(c)は第3図(b)の
c−c’矢視の断面図である。筒体2の外形は第3図(
C)のような円形に限らず、用途に合わせて種々の形状
、例えば多角形とすることもできる。第3図(c)は円
形の外周に2個所部分的な面取り部2aを設けた例であ
る。
Next, an example of manufacturing the stud shown in Fig. 1 is shown in Figs. 3(a) to (d).
This will be explained with reference to FIGS. 4(a) to 4(C). First, the third
As shown in Figure (a), a cylindrical body 2 with an internal thread 3 formed in advance.
is prepared, and in order to make a cylinder of a predetermined length, cut it at the position indicated by the - dotted chain line. This cut cylindrical body 2 is
Shown in Figure (b). Moreover, FIG. 3(c) is a sectional view taken along the line c-c' in FIG. 3(b). The external shape of the cylinder 2 is shown in Figure 3 (
It is not limited to a circular shape as shown in C), but can also be of various shapes, such as polygons, depending on the purpose. FIG. 3(c) is an example in which two partial chamfers 2a are provided on the circular outer periphery.

第3図(b)の内ネジ付き筒体を作るには、前記の方法
に限らず、長い筒体の一端からネジ切りバイト等で内ネ
ジを所定長切り、次いでそれを切断するということを繰
り返す方法でもよい。
In order to make the internally threaded cylindrical body shown in Fig. 3(b), the method is not limited to the above method, but also involves cutting the internal thread to a predetermined length from one end of the long cylindrical body using a thread cutting tool, etc., and then cutting it. It may also be a repeating method.

一方、溶接基部は第4図(a)に示すように、所定の寸
法の円板状の金属板7を金型8a及び8bの間に装着し
、油圧等によりプレス成形により造ることができる。第
4図(b)の溶接基部4は、平坦な周縁9から半径方向
内側に向かって台形状になっており、その中心部に突起
5が形成されている。第4図(C)に示す溶接基部4は
第4図(b)と異なった形状の例であり、周縁9を有す
る円錐形としたものである。これらの溶接基部の形状は
スタッドの使用目的によって種々選択すればよい。
On the other hand, as shown in FIG. 4(a), the weld base can be made by mounting a disk-shaped metal plate 7 of a predetermined size between molds 8a and 8b, and press-forming using hydraulic pressure or the like. The welding base 4 shown in FIG. 4(b) has a trapezoidal shape extending radially inward from a flat peripheral edge 9, and a projection 5 is formed at the center thereof. The welding base 4 shown in FIG. 4(C) is an example of a shape different from that in FIG. 4(b), and is a conical shape having a peripheral edge 9. The shapes of these welding bases may be selected from various shapes depending on the intended use of the stud.

次に、前述のようにして得られた筒体2と溶接基部4を
溶着する。即ち、先ず、第3図(b)に示す筒体2の一
端6と第4図(b)に示す溶接基部4の周縁9を密着さ
せ、次いで、両部材間に図示しない抵抗溶接器によって
溶接電流を流し、接触面を溶着することによって、第1
図に示したようなスタッドが完成する。
Next, the cylindrical body 2 obtained as described above and the weld base 4 are welded together. That is, first, one end 6 of the cylindrical body 2 shown in FIG. 3(b) and the peripheral edge 9 of the welding base 4 shown in FIG. By applying an electric current and welding the contact surfaces, the first
The stud shown in the figure is completed.

〔作  用〕[For production]

本発明のスタッドの使用方法は、従来の同種のスタッド
の使用方法と同様である。即ち、スタッドの筒体2をス
タッド溶接ガンの通電部に直接に、もしくは別のスタッ
ドホルダーを介して嵌着し、溶接基部4の突起5を植え
付けるべき母材に接触させる。次に溶接ガンから通電し
て溶接電流をスタッドから母材へ流し、両者を溶着する
The method of using the stud of the present invention is similar to the method of using conventional studs of the same type. That is, the cylindrical body 2 of the stud is fitted into the current-carrying part of the stud welding gun either directly or via another stud holder, and the protrusion 5 of the welding base 4 is brought into contact with the base material to be implanted. Next, electricity is applied from the welding gun to flow welding current from the stud to the base metal, welding the two together.

このようにして母材へ植え付けられた内ネジ付スタッド
へ、目的とする部材もしくはそれを係止するボルト等を
螺着すればよい。
A target member or a bolt or the like for locking the target member may be screwed onto the internally threaded stud planted in the base material in this manner.

〔発明の効果〕〔Effect of the invention〕

本発明のスタッドは、全長にわたって内ネジを有する筒
体の一端に溶接基部が溶着されたものであるから、筒体
と溶接基部を別種の材料から構成することが容易であり
、そのため溶接性に制約されることなく筒体の材料を選
択することができる。また、スタッド全長に対する内ネ
ジ部の長さを多くとれる上に、内ネジ先端部に不完全ネ
ジ部を有することもないので、同一のネジ接合長を得る
ためのスタッド全長を短くすることができる。
Since the stud of the present invention has a welding base welded to one end of the cylindrical body that has internal threads over its entire length, the cylindrical body and the welding base can be easily constructed from different materials, and therefore, the weldability is improved. The material of the cylindrical body can be selected without restrictions. In addition, the length of the internal thread can be increased relative to the total length of the stud, and there is no incomplete thread at the tip of the internal thread, so the total length of the stud can be shortened to obtain the same threaded connection length. .

また、前述した本発明のスタッドの製法によれば、生産
性が高く、精度の良いスタッドを製造することが容易で
ある。
Further, according to the stud manufacturing method of the present invention described above, it is easy to manufacture studs with high productivity and high precision.

【図面の簡単な説明】[Brief explanation of the drawing]

第1図は本発明のスタッド溶接用のスタッドの一例を示
す側断面図、第2図(a)は従来のスタッド溶接用のス
タッドの側断面図、第2図(b)は第2図(a)のスタ
ッドの溶接基部の平面図、第3図(a)は第1図のスタ
ッドを製造するための長い筒体の側断面図、第3図(b
)は第3図(a)の筒体を所定長に切断した側断面図、
第3図(c)は第3図(b)のC−C′矢視断面図、第
3図(d)は他の筒体の断面を第3図(c)と同様に示
した断面図、第4図(a)は第1図のスタッドを製造す
るための溶接基部用金属板をプレス金型に装着したとこ
ろを示す側断面図、第4図(b)及び(c)は成形され
た溶接基部の側断面図。 1・・・スタッド    2・・・筒体2a・・・面取
り部   3・・・内ネジ4・・・溶接基部    5
・・・突起6・・・筒体の一端   7・・・金属板8
a、8b・・・金型   9・・・溶接基部の周縁代理
人弁理士  窪 1)卓 美 第1図 第2図 (0)(b) 第3図 (a) 賦′ 80       ■
FIG. 1 is a side sectional view showing an example of a stud for stud welding of the present invention, FIG. 2(a) is a side sectional view of a conventional stud for stud welding, and FIG. Figure 3 (a) is a plan view of the welded base of the stud in Figure 3 (a) is a side sectional view of the long cylinder for manufacturing the stud in Figure 1; Figure 3 (b)
) is a side sectional view of the cylinder shown in FIG. 3(a) cut to a predetermined length;
FIG. 3(c) is a sectional view taken along the line C-C' in FIG. 3(b), and FIG. 3(d) is a sectional view showing the cross section of another cylinder in the same way as FIG. 3(c). , FIG. 4(a) is a side sectional view showing the welding base metal plate mounted on a press mold for manufacturing the stud of FIG. 1, and FIGS. 4(b) and (c) are the molded FIG. 1... Stud 2... Cylindrical body 2a... Chamfered portion 3... Internal thread 4... Welding base 5
...Protrusion 6...One end of cylinder 7...Metal plate 8
a, 8b... Mold 9... Periphery of welding base Patent attorney Kubo 1) Takumi Figure 1 Figure 2 (0) (b) Figure 3 (a) Fee' 80 ■

Claims (2)

【特許請求の範囲】[Claims] (1)全長にわたって内ネジを有する筒体(2)の一端
に溶接基部(4)が溶着されてなるスタッド溶接用のス
タッド。
(1) A stud for stud welding, in which a welding base (4) is welded to one end of a cylindrical body (2) having internal threads over its entire length.
(2)全長にわたって内ネジを有する所定の長さの筒体
(2)を形成する工程と、金属板を成形することにより
溶接基部(4)を形成する工程と、前記工程で得られた
筒体(2)の一端と溶接基部(4)の周縁(9)を抵抗
溶接により溶着する工程とを有するスタッド溶接用のス
タッドの製造方法。
(2) a step of forming a cylinder (2) of a predetermined length having internal threads over its entire length; a step of forming a welding base (4) by forming a metal plate; A method for manufacturing a stud for stud welding, comprising the step of welding one end of a body (2) and a peripheral edge (9) of a welding base (4) by resistance welding.
JP61236670A 1986-10-03 1986-10-03 Stud for stud welding and method of manufacturing the same Expired - Lifetime JPH0688139B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP61236670A JPH0688139B2 (en) 1986-10-03 1986-10-03 Stud for stud welding and method of manufacturing the same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP61236670A JPH0688139B2 (en) 1986-10-03 1986-10-03 Stud for stud welding and method of manufacturing the same

Publications (2)

Publication Number Publication Date
JPS6390369A true JPS6390369A (en) 1988-04-21
JPH0688139B2 JPH0688139B2 (en) 1994-11-09

Family

ID=17004042

Family Applications (1)

Application Number Title Priority Date Filing Date
JP61236670A Expired - Lifetime JPH0688139B2 (en) 1986-10-03 1986-10-03 Stud for stud welding and method of manufacturing the same

Country Status (1)

Country Link
JP (1) JPH0688139B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004202507A (en) * 2002-12-24 2004-07-22 Okabe Co Ltd Stud and its manufacturing method

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4728724U (en) * 1971-04-22 1972-12-01

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4728724U (en) * 1971-04-22 1972-12-01

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004202507A (en) * 2002-12-24 2004-07-22 Okabe Co Ltd Stud and its manufacturing method

Also Published As

Publication number Publication date
JPH0688139B2 (en) 1994-11-09

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