JPH084955B2 - Positioning pin for welding - Google Patents
Positioning pin for weldingInfo
- Publication number
- JPH084955B2 JPH084955B2 JP4070771A JP7077192A JPH084955B2 JP H084955 B2 JPH084955 B2 JP H084955B2 JP 4070771 A JP4070771 A JP 4070771A JP 7077192 A JP7077192 A JP 7077192A JP H084955 B2 JPH084955 B2 JP H084955B2
- Authority
- JP
- Japan
- Prior art keywords
- metal
- positioning pin
- welding
- ceramic
- guide member
- 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 - Lifetime
Links
- 238000003466 welding Methods 0.000 title claims description 22
- 229910052751 metal Inorganic materials 0.000 claims description 38
- 239000002184 metal Substances 0.000 claims description 38
- 239000000919 ceramic Substances 0.000 claims description 27
- 229910000831 Steel Inorganic materials 0.000 description 11
- 239000010959 steel Substances 0.000 description 11
- 230000000052 comparative effect Effects 0.000 description 5
- 229910000975 Carbon steel Inorganic materials 0.000 description 2
- 229910052581 Si3N4 Inorganic materials 0.000 description 2
- 229910001315 Tool steel Inorganic materials 0.000 description 2
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 239000010962 carbon steel Substances 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 239000011733 molybdenum Substances 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 1
- 229910010271 silicon carbide Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
Landscapes
- Resistance Welding (AREA)
- Insertion Pins And Rivets (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は、自動車の車体等の製造
時に板金の位置決めを行ない、それを溶接する際に使用
する溶接用の位置決めピンに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a positioning pin for welding, which is used for positioning a sheet metal at the time of manufacturing a vehicle body of an automobile and welding it.
【０００２】[0002]
【従来の技術】従来、位置決めピンには、炭素鋼などの
金属が使用されていたが、耐摩耗性、耐蝕性に劣り、寿
命が短いという欠点があった。これを解決するものとし
て特開平２−２９０６９６号には、位置決めピンの位置
決め部（胴部）をセラミック製とし、固定部（締結部）
と導入部（ガイド部）はそれぞれ金属製とすることによ
り、板金の挿入、抜出し時の機械的衝撃による破損を防
止できることが述べられている。2. Description of the Related Art Conventionally, a metal such as carbon steel has been used for a positioning pin, but it has a drawback that it is inferior in wear resistance and corrosion resistance and has a short life. As a solution to this, in Japanese Patent Laid-Open No. 2-290696, the positioning portion (body) of the positioning pin is made of ceramic, and the fixing portion (fastening portion).
It is described that by making each of the and the introduction part (guide part) made of metal, it is possible to prevent damage due to a mechanical impact at the time of inserting and removing the sheet metal.
【０００３】[0003]
【発明が解決しようとする課題】しかしながら、特開平
２−２９０６９６号記載の位置決めピンでは、図２に示
すように、胴部２の上方部一部分は金属で形成され、即
ち金属製ガイド部１の下方部の外径ａはセラミック製胴
部２の外径ｂと同じ寸法としている。この場合、ガイド
部１は金属製のためセラミック製の胴部２よりも早く摩
耗し、ガイド部１と胴部２の継ぎ目部３に段差を生じ、
ワークの挿入時にはワークがこの段差に引っかかって所
定の位置まで下がらず、溶接作業が中断するという問題
があった。さらに、このことによりセラミックが露出
し、セラミックに直接ワークが当たるようになり、セラ
ミックが欠けてくるという問題も付随して生じてきた。
また、継ぎ目部３におけるセラミック側角部が欠け、ワ
ークを位置決めピンより抜く際に欠け部にワークが引っ
かかって溶接作業が中断するなどの問題があった。However, in the positioning pin described in Japanese Patent Laid-Open No. 2-290696, as shown in FIG. 2, a part of the upper portion of the body portion 2 is made of metal, that is, the metal guide portion 1 is formed. The outer diameter a of the lower portion is the same as the outer diameter b of the ceramic body 2. In this case, since the guide portion 1 is made of metal, it wears earlier than the body portion 2 made of ceramic, and a step is formed at the joint portion 3 between the guide portion 1 and the body portion 2,
When inserting the work, there is a problem that the work is caught in the step and does not move down to a predetermined position, and the welding operation is interrupted. Further, this causes the ceramic to be exposed and the work to be directly contacted with the ceramic, resulting in a problem that the ceramic is chipped.
Further, there is a problem in that the corners on the ceramic side of the seam portion 3 are chipped, and when the work is pulled out from the positioning pin, the work is caught in the chipped portion and the welding operation is interrupted.
【０００４】一方、継ぎ目部３での段差を位置決めピン
の製造時点でなくすには、ガイド部と胴部とを組立後、
外周を加工仕上げする必要がありコストアップとなる。
また、外周加工を行なわないで、特開平２−２９０６９
６号記載の固定部材（金属製締結部）にセラミック部材
（セラミック製胴部）を挿入・嵌合する構造では、嵌め
合い公差のため継ぎ目部３で１０μｍ未満の段差を生
じ、このような僅かな段差であっても板金等ワークの孔
は打ち抜き孔で周囲にバリも多いため挿入時に容易に引
っかかり、鋼板が湾曲したりするという問題があった。On the other hand, in order to eliminate the step at the joint portion 3 at the time of manufacturing the positioning pin, after assembling the guide portion and the body portion,
It is necessary to process and finish the outer circumference, which increases the cost.
In addition, the outer peripheral processing is not performed, and it is disclosed in JP-A-2-29069.
In the structure of inserting and fitting the ceramic member (ceramic body) into the fixing member (metal fastening portion) described in No. 6, a step difference of less than 10 μm occurs at the seam portion 3 due to fitting tolerance, and such a slight Even if there is such a step, there is a problem that the hole of the work such as the metal plate is a punched hole and there are many burrs around the hole, so that it is easily caught at the time of insertion and the steel plate is curved.
【０００５】[0005]
【課題を解決するための手段】そこで、本発明者は上記
問題に基づき鋭意検討を行なった結果、ガイド部及び胴
部を適切な形状としかつそれぞれを適切な材質で形成す
ることにより問題を解決できることを見出し、本発明に
到達した。すなわち、本発明によれば、溶接機本体に設
置するための締結部を形成する金属製締結部材と、該金
属製締結部材の上側に配置されワークを位置決めする胴
部を形成し貫通孔を有するセラミック製円筒部材と、該
セラミック製円筒部材の貫通孔を介して前記金属製締結
部材に装着されたワークをガイドする先端テーパ部を形
成する金属製ガイド部材とからなる溶接用位置決めピン
において、該セラミック製円筒部材が金属製ガイド部材
における前記先端テーパ部の一部を形成してなることを
特徴とする溶接用位置決めピン、が提供される。Therefore, as a result of intensive studies based on the above problems, the present inventor has solved the problems by forming the guide portion and the body portion in appropriate shapes and forming each of them with an appropriate material. The inventors have found out what can be done and have reached the present invention. That is, according to the present invention, a metal fastening member that forms a fastening portion to be installed in the main body of the welding machine, a body portion that is disposed above the metal fastening member, and that positions a workpiece are formed, and a through hole is formed. A welding positioning pin comprising a ceramic cylindrical member and a metal guide member forming a tip tapered portion for guiding a workpiece mounted on the metal fastening member through a through hole of the ceramic cylindrical member, There is provided a welding positioning pin, wherein a ceramic cylindrical member forms a part of the tip tapered portion of a metal guide member.
【０００６】[0006]
【作用】本発明の溶接用位置決めピンでは、セラミック
製円筒部材が金属製ガイド部材における先端テーパ部の
一部を形成するように構成する。このように、本発明で
は胴部を形成するセラミック製円筒部材を先端テーパ部
の下方部まで延ばし、ガイド部材の形成するテーパ部の
延長線上のテーパと同一のテーパを形成するようにした
ことにより、ガイド部材と円筒部材の継ぎ目はテーパ部
の比較的下方となる構造としたことで、ワーク挿入時
に、継ぎ目部にワークが直接衝突することが殆どなく、
セラミック製円筒部材に欠けを生ずることがない。さら
に、前述した通り、継ぎ目が存在しないので、継ぎ目で
の段差をなくすための組立後の加工も必要なくなり、コ
ストダウンすることが可能となる。In the welding positioning pin of the present invention, the ceramic cylindrical member forms a part of the tip tapered portion of the metal guide member. As described above, according to the present invention, the ceramic cylindrical member forming the body is extended to the lower portion of the tip tapered portion to form the same taper on the extension line of the tapered portion formed by the guide member. Since the joint between the guide member and the cylindrical member is located relatively below the taper portion, the workpiece rarely directly collides with the joint when the workpiece is inserted,
The ceramic cylindrical member is not chipped. Furthermore, as described above, since there is no seam, it is not necessary to perform post-assembly processing to eliminate the step at the seam, and the cost can be reduced.
【０００７】なお、本発明の溶接用位置決めピンにおい
ては、胴部を形成するセラミック製円筒部材のうち、少
なくともワークと当接する部分より下方を金属製とする
と、金属製締結部材に装着した金属製ガイド部材の中芯
が折損するおそれを回避でき好ましい。本発明の溶接用
位置決めピンは、図１に示すように、金属製締結部材１
０と、金属製締結部材１０の上側に配置された貫通孔１
１を有するセラミック製円筒部材１２と、貫通孔１１を
介して金属製締結部材１０に先端テーパ部１３を形成す
る金属製ガイド部材１４を装着して構成されている。そ
して、セラミック製円筒部材１２が金属製ガイド部材１
４における先端テーパ部１３の一部を形成するものであ
る。In the welding positioning pin of the present invention, if at least the portion of the ceramic cylindrical member forming the body portion that abuts the work is made of metal, the metal is attached to the metal fastening member. This is preferable because it is possible to avoid the possibility of breaking the core of the guide member. The welding positioning pin of the present invention is, as shown in FIG.
0 and a through hole 1 arranged on the upper side of the metal fastening member 10.
1 and a metal guide member 14 forming a tapered end portion 13 are attached to a metal fastening member 10 through a through hole 11. Then, the ceramic cylindrical member 12 is the metal guide member 1
4 forms a part of the tapered portion 13 at the tip.
【０００８】なお、金属製ガイド部材１４、金属製締結
部材１０およびセラミック製円筒部材１２の間の装着、
固定は特に制限はなく、各種接着剤等による固着や、図
１のようなネジ部１５による螺着を適用することができ
る。螺着の場合、ワッシャ１６、ナット１７が通常使用
される。本発明で用いるセラミック製円筒部材１２の材
質としては、高強度なものが好ましく、例えば窒化珪
素、炭化珪素、ジルコニア、サイアロン等が挙げられ
る。また、ガイド部材１４及び締結部材１０は金属質で
あり、例えば炭素鋼、クロムモリブデン鋼、合金工具
鋼、ステンレス鋼などが好ましく用いられる。The metal guide member 14, the metal fastening member 10 and the ceramic cylindrical member 12 are attached to each other.
The fixing is not particularly limited, and fixing with various adhesives or screwing with the screw portion 15 as shown in FIG. 1 can be applied. In the case of screwing, the washer 16 and the nut 17 are usually used. The material of the ceramic cylindrical member 12 used in the present invention is preferably one having high strength, and examples thereof include silicon nitride, silicon carbide, zirconia, and sialon. The guide member 14 and the fastening member 10 are made of metal, and carbon steel, chrome molybdenum steel, alloy tool steel, stainless steel, etc. are preferably used.
【０００９】[0009]
【実施例】以下、本発明を実施例に基づきさらに詳しく
説明するが、本発明はこれらの実施例に限られるもので
はない。The present invention will be described in more detail based on the following examples, but the invention is not intended to be limited to these examples.
【００１０】（実施例１）先端テーパ部１３を形成する
金属製ガイド部材１４、及び溶接機本体に設置するため
の締結部を形成する金属製締結部材１０を合金工具鋼で
あるＳＫＤ６１種で、胴部を形成するセラミック製円筒
部材１２を窒化珪素でそれぞれ作製し、各々をエポキシ
系樹脂で固着した後、ガイド部材１４と締結部材１０と
を締結部材１０の下部でねじ結合して、図１に示す位置
決めピンを製造した。このねじ結合部１５は緩み防止の
ため、ロックタイト接着剤を塗布して行なった。なお、
円筒部材１２は、その下部の一部分が締結部材１０の嵌
合部１８内に挿入・嵌合される構造とし、高精度に嵌合
することにより、組立後の外周加工が必要ないようにし
た。なお、この位置決めピンの全体寸法は、全長が６０
mm、ガイド部径がφ１０mm、ガイド部長さが直線距離で
２０mmである。上記の方法で作製した本発明の溶接用位
置決めピンを自動車の鋼板溶接ラインで使用した。な
お、試験数ｎ＝５とした。その結果を表１に示す。(Example 1) The metal guide member 14 forming the tip tapered portion 13 and the metal fastening member 10 forming the fastening portion for installation in the main body of the welding machine are made of alloy tool steel SKD61 type. The ceramic cylindrical members 12 forming the body are made of silicon nitride, respectively fixed with epoxy resin, and then the guide member 14 and the fastening member 10 are screwed together at the lower portion of the fastening member 10. The positioning pin shown in was manufactured. This screw joint 15 was formed by applying a Loctite adhesive to prevent loosening. In addition,
The cylindrical member 12 has a structure in which a part of the lower portion thereof is inserted and fitted into the fitting portion 18 of the fastening member 10 and is fitted with high accuracy so that outer peripheral processing after assembly is not required. The overall size of this positioning pin is 60
mm, the guide portion diameter is φ10 mm, and the guide portion length is a linear distance of 20 mm. The welding positioning pin of the present invention produced by the above method was used in a steel plate welding line for automobiles. The number of tests n = 5. The results are shown in Table 1.
【００１１】（比較例１、２）比較のため、図１と同一
形状の金属一体品（比較例１）、および金属製ガイド部
材１４とセラミック製円筒部材１２の構造を図２のよう
にした以外は実施例１の位置決めピンと同様にして作製
した位置決めピン（比較例２）を用い、実施例１と同じ
自動車の鋼板溶接ラインで使用した。なお、試験数ｎ＝
５とした。その結果を表１に示す。(Comparative Examples 1 and 2) For comparison, the metal integrated member having the same shape as that of FIG. 1 (Comparative Example 1), and the structure of the metal guide member 14 and the ceramic cylindrical member 12 are as shown in FIG. A positioning pin (Comparative Example 2) manufactured in the same manner as the positioning pin of Example 1 was used except for the above, and was used in the steel plate welding line of the same automobile as in Example 1. The number of tests n =
It was set to 5. The results are shown in Table 1.
【００１２】[0012]
【表１】 [Table 1]
【００１３】表１の結果より、例えば、比較例１の金属
一体品では、胴部表面が鋼板との摩耗及び電食摩耗によ
って10,000〜20,000回で荒れてしまい、鋼板の位置決め
ピンへの着脱が円滑に行なわれなくなり、また比較例２
（図２）の場合でも60,000〜110,000 で鋼板の位置決め
ピンへの着脱が円滑に行なわれなくなることが分かる。
一方、本発明に係る図１に示す実施例１の位置決めピン
では、150,000 回を超えても、鋼板への着脱不良は発生
せず、また鋼板のわん曲も生じなかった。From the results shown in Table 1, for example, in the metal integrated product of Comparative Example 1, the body surface was roughened by 10,000 to 20,000 times due to wear with the steel plate and electrolytic corrosion wear, and the steel plate was not attached to or removed from the positioning pin. It is not performed smoothly, and Comparative Example 2
Even in the case of (Fig. 2), it can be seen that the steel plate cannot be smoothly attached to and detached from the positioning pin at 60,000 to 110,000.
On the other hand, with the positioning pin of the first embodiment shown in FIG. 1 according to the present invention, even if it exceeded 150,000 times, the attachment / detachment failure to the steel plate did not occur, and the steel plate did not bend.
【００１４】[0014]
【発明の効果】以上説明したように、本発明の溶接用位
置決めピンは、胴部を形成するセラミック製円筒部材を
先端テーパ部の下方部まで延ばし、ガイド部材の形成す
るテーパ部の延長線上のテーパと同一のテーパを形成す
るようにしたことにより、ワーク挿入時に継ぎ目部にワ
ークが直接衝突することがなく、金属製ガイド部材の摩
耗や胴部のセラミック製円筒部材に欠けを生ずることが
ない。その結果、鋼板への着脱がスムーズに行なえ、円
滑に溶接作業をすすめることができる。As described above, in the welding positioning pin of the present invention, the ceramic cylindrical member forming the body portion is extended to the lower portion of the tapered end portion, and the extension line of the tapered portion formed by the guide member is provided. By forming the same taper as the taper, the work does not directly collide with the seam when inserting the work, and the metal guide member is not worn or the ceramic cylindrical member of the body is not chipped. . As a result, the steel plate can be smoothly attached to and detached from the steel plate, and the welding work can be smoothly performed.
【図１】本発明の溶接用位置決めピンの一例を示す断面
概要図である。FIG. 1 is a schematic sectional view showing an example of a welding positioning pin of the present invention.
【図２】従来の溶接用位置決めピンの一例を示す断面形
状説明図である。FIG. 2 is a sectional shape explanatory view showing an example of a conventional welding positioning pin.
１０ 金属製締結部材、１１ 貫通孔、１２ セラミッ
ク製円筒部材、１３ 先端テーパ部、１４ 金属製ガイ
ド部材、１５ ねじ結合部、１６ ワッシャ、１７ ナ
ット、１８ 嵌合部。10 metal fastening member, 11 through hole, 12 ceramic cylindrical member, 13 tip tapered portion, 14 metal guide member, 15 screw coupling portion, 16 washer, 17 nut, 18 fitting portion.
Claims (1)
成する金属製締結部材と、該金属製締結部材の上側に配
置されワークを位置決めする胴部を形成し貫通孔を有す
るセラミック製円筒部材と、該セラミック製円筒部材の
貫通孔を介して前記金属製締結部材に装着されたワーク
をガイドする先端テーパ部を形成する金属製ガイド部材
とからなる溶接用位置決めピンにおいて、該セラミック
製円筒部材が金属製ガイド部材における前記先端テーパ
部の一部を形成してなることを特徴とする溶接用位置決
めピン。1. A ceramic cylinder having a through hole formed with a metal fastening member that forms a fastening portion to be installed in the main body of the welding machine, and a body portion that is disposed above the metal fastening member and that positions a workpiece. In the positioning pin for welding, which comprises a member and a metal guide member that forms a tip tapered portion that guides a workpiece mounted on the metal fastening member through a through hole of the ceramic cylinder member, the ceramic cylinder A welding positioning pin, wherein the member forms a part of the tip tapered portion of the metal guide member.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4070771A JPH084955B2 (en) | 1992-03-27 | 1992-03-27 | Positioning pin for welding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4070771A JPH084955B2 (en) | 1992-03-27 | 1992-03-27 | Positioning pin for welding |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH05277792A JPH05277792A (en) | 1993-10-26 |
| JPH084955B2 true JPH084955B2 (en) | 1996-01-24 |
Family
ID=13441121
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4070771A Expired - Lifetime JPH084955B2 (en) | 1992-03-27 | 1992-03-27 | Positioning pin for welding |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH084955B2 (en) |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0669635B2 (en) * | 1989-02-10 | 1994-09-07 | 電気化学工業株式会社 | Positioning pin |
| JP3012605U (en) * | 1994-12-19 | 1995-06-20 | 東京セイル株式会社 | Earpick with light |
-
1992
- 1992-03-27 JP JP4070771A patent/JPH084955B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH05277792A (en) | 1993-10-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8506228B2 (en) | Punch rivet and die | |
| US7487703B2 (en) | Dual headed punch with tapered neck | |
| EP0942180B1 (en) | Spring loaded bushed wedgelock | |
| KR19980079416A (en) | An element, a method of attaching the element to a plate-like part, a component assembly and a die button | |
| US7849578B2 (en) | Progressive and transfer die stamping | |
| US6070883A (en) | Sealing unit for a fuel pressure sensor | |
| GB1599070A (en) | Threaded insert particularly for securing to thin sheets | |
| JPH084955B2 (en) | Positioning pin for welding | |
| CN113915216B (en) | Functional element | |
| JP6824352B1 (en) | Locknut | |
| JP3317022B2 (en) | Core release device | |
| CN216400675U (en) | Improved die shank mechanism | |
| CN101318295A (en) | Positioning pin mechanism and positioning method | |
| CN214814030U (en) | U-shaped punch | |
| CN104741472A (en) | Plate material omnibearing locating structure and method in hot press forming technology | |
| CN224149970U (en) | Weld nut and thread tightening kit | |
| JP3001317U (en) | Assembly tools for forging and forging | |
| CN216966007U (en) | Split type connecting punch | |
| JPH10205512A (en) | Bolted metal plate and method of manufacturing the same | |
| JP2000218324A (en) | Hole punching die | |
| JP4807037B2 (en) | Mold unit of slab press machine | |
| JP2546978B2 (en) | Tie bar cutting mold | |
| JPH0735693Y2 (en) | Machine tool spindle | |
| JP2562248Y2 (en) | Positioning pin | |
| KR200273647Y1 (en) | a punch for cutting of coil spring |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 19960716 |