JPH0588786U - Positioning pin - Google Patents
Positioning pinInfo
- Publication number
- JPH0588786U JPH0588786U JP7874391U JP7874391U JPH0588786U JP H0588786 U JPH0588786 U JP H0588786U JP 7874391 U JP7874391 U JP 7874391U JP 7874391 U JP7874391 U JP 7874391U JP H0588786 U JPH0588786 U JP H0588786U
- Authority
- JP
- Japan
- Prior art keywords
- positioning
- metallic
- positioning pin
- fixing member
- hole
- 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
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- Jigs For Machine Tools (AREA)
- Ceramic Products (AREA)
Abstract
(57)【要約】
【目的】 一方向における鋼板の挿入・抜き出し時の機
械的衝撃による破損が発生しにくく、長寿命化が達成さ
れる位置決めピンの提供。
【構成】 金属質固定部材（１）の上面に、貫通孔を有
するセラミックス質位置決め部材（２）を配置し、その
貫通孔を通して金属質導入部材（３）を該金属質固定部
材（１）に装着してなる位置決めピンにおいて、上記金
属質導入部材（３）と上記セラミックス質位置決め部材
（２）の断面が楕円状を有してなることを特徴とする位
置決めピン。
(57) [Summary] [Purpose] To provide a positioning pin that is less likely to be damaged by a mechanical shock when inserting or extracting a steel plate in one direction and that achieves a long service life. A ceramic positioning member (2) having a through hole is arranged on the upper surface of the metallic fixing member (1), and a metallic introducing member (3) is attached to the metallic fixing member (1) through the through hole. In the mounted positioning pin, the metallic introduction member (3) and the ceramic positioning member (2) have elliptical cross sections.
Description
【０００１】[0001]
本考案は、位置決めピン、詳しくは、例えば自動車の製造工程において、鋼板 の位置決めを行いそれを溶接する際に使用される位置決めピンに関する。 The present invention relates to a positioning pin, and more particularly to a positioning pin used for positioning a steel plate and welding it in a manufacturing process of an automobile, for example.
【０００２】[0002]
従来、位置決めピンはS45C等の金属が使用されているが、耐摩耗性や耐蝕性が 充分でないので鋼板枚数が5,000〜50,000枚程度の取扱量で寿命となる欠点があ った。 Conventionally, metal such as S45C has been used for the positioning pin, but it has the drawback that the amount of steel plates handled reaches the end of its service life due to insufficient wear resistance and corrosion resistance.
【０００３】 窒化珪素やサイアロン等のセラミックスは、高強度、高硬度、高耐摩耗性、軽 量性等の特性を有しているので、位置決めピンの位置決め部材としてその断面形 状が円形のものが検討されている。しかし、鋼板の一方向だけの位置を決める際 、鋼板の装入・抜き出し時における機械的衝撃に充分耐え得る具体的な位置決め ピンの構造については明かではない。Ceramics such as silicon nitride and sialon have characteristics such as high strength, high hardness, high wear resistance, and light weight. Therefore, the positioning member of the positioning pin has a circular cross section. Is being considered. However, when deciding the position of the steel sheet in only one direction, it is not clear about the specific structure of the positioning pin that can sufficiently withstand the mechanical impact at the time of loading / unloading the steel sheet.
【０００４】[0004]
本考案の目的は、鋼板の装入・抜き出し時における機械的衝撃に対して優れた 耐久性を示すセラミックスを構成部材とした鋼板の一方向だけの位置を決める位 置決めピンを提供しようとするものである。 An object of the present invention is to provide a positioning pin for determining the position of a steel sheet in only one direction, which is made of ceramics and has excellent durability against mechanical shock during loading / unloading of the steel sheet. It is a thing.
【０００５】[0005]
すなわち、本考案は、金属質固定部材１の上面に、貫通孔を有するセラミック ス質位置決め部材２を配置し、その貫通孔を通して金属質導入部材３を該金属質 固定部材１に装着してなる位置決めピンにおいて、上記金属質導入部材３と上記 セラミックス質位置決め部材２の断面が楕円状を有してなることを特徴とする位 置決めピンである。 That is, according to the present invention, the ceramic positioning member 2 having a through hole is arranged on the upper surface of the metallic fixing member 1, and the metallic introducing member 3 is attached to the metallic fixing member 1 through the through hole. In the positioning pin, the cross section of the metallic introduction member 3 and the ceramic positioning member 2 has an elliptical shape.
【０００６】 以下、本考案を図面に基づいてさらに詳しく説明する。Hereinafter, the present invention will be described in more detail with reference to the drawings.
【０００７】 図１の（ａ）は、本考案の一実施例を示す一部切欠断面図であり、図１の（ｂ ）はＡ−Ａ断面図である。すなわち、本考案の位置決めピンは、金属質固定部材 （以下、単に固定部材という）１、貫通孔を有するセラミックス質位置決め部材 （以下、単に位置決め部材という）２及び金属質導入部材（以下、単に導入部材 という）３から構成されている。詳しくは、固定部材１の上面に位置決め部材２ を位置させ、該位置決め部材２の貫通孔に導入部材の軸部４を挿通させて導入部 材３と固定部材１とをネジ部５等の結合手段より装着してなる構造を有するもの である。FIG. 1A is a partially cutaway sectional view showing an embodiment of the present invention, and FIG. 1B is an AA sectional view. That is, the positioning pin of the present invention includes a metallic fixing member (hereinafter, simply referred to as a fixing member) 1, a ceramic positioning member (hereinafter, simply referred to as a positioning member) 2 having a through hole, and a metallic introduction member (hereinafter, simply introduced). It is composed of 3). Specifically, the positioning member 2 is positioned on the upper surface of the fixing member 1, and the shaft portion 4 of the introducing member is inserted into the through hole of the positioning member 2 so that the introducing member 3 and the fixing member 1 are connected to each other by the screw portion 5 or the like. It has a structure that is attached by means.
【０００８】 本考案の大きな特徴は、導入部材３と位置決め部材２の断面を楕円状としたも のである。このようにすることによって、鋼板の逃げ代を確保しながら導入部と 位置決め部の厚みを大きくすることができるので、一方向における鋼板の装入・ 抜き出し時の機械的衝撃による破損が発生しにくいものとなる。A major feature of the present invention is that the introduction member 3 and the positioning member 2 have elliptical cross sections. By doing this, it is possible to increase the thickness of the introduction part and the positioning part while ensuring the clearance of the steel plate, so that damage due to mechanical impact during loading / unloading of the steel plate in one direction is less likely to occur. Will be things.
【０００９】 導入部材３と固定部材１の固定は、該軸部に設けたネジ部５による螺着が好ま しく、その場合、接着剤や半田等の緩み止め防止剤を塗布してもよい。The introduction member 3 and the fixing member 1 are preferably fixed by screwing with a screw portion 5 provided on the shaft portion. In that case, a loosening preventive agent such as an adhesive or solder may be applied.
【００１０】 位置決め部材２を固定部材１の上面に位置させるに際し、図１に示すように、 位置決め部材２の外周直胴部の一部が固定部材１の内側に組み込んだ構造にする ことが好ましい。このようにすることによって、使用時における鋼板からの外力 によって位置決め部材２がずれることはない。When the positioning member 2 is positioned on the upper surface of the fixing member 1, it is preferable that a part of the outer peripheral straight body portion of the positioning member 2 is incorporated inside the fixing member 1 as shown in FIG. .. By doing so, the positioning member 2 is not displaced by the external force from the steel plate during use.
【００１１】 位置決め部材２と導入部材３は、組立て前にその断面を楕円状に製作したもの を用いてもよいし、断面が円状のものを組立てた後楕円状に加工してもよい。As the positioning member 2 and the introducing member 3, those having an oval cross section may be used before assembly, or those having a circular cross section may be assembled and then processed into an oval shape.
【００１２】 位置決め部材２の材質は、窒化珪素、サイアロン、ジルコニア、アルミナ、炭 化珪素等のセラミックスから選択されるが、耐摩耗性及び耐蝕性の点から窒化珪 素が好適である。セラミックスの焼結方法としては、その形状や要求性能により 、常圧焼結、ホットプレス、ＨＩＰから選ぶことができる。The material of the positioning member 2 is selected from ceramics such as silicon nitride, sialon, zirconia, alumina, and silicon carbide, but silicon nitride is preferable from the viewpoint of wear resistance and corrosion resistance. Depending on the shape and required performance, the ceramics can be sintered by atmospheric pressure sintering, hot pressing or HIP.
【００１３】 導入部材３はネジ部５等の結合手段を備えた軸部４を有しているが、両者は一 体成形体である必要はなく、両者を別々に製作し一体化してもよい。また、その 際、両者の材質は違えてもよい。The introduction member 3 has a shaft portion 4 provided with a coupling means such as a screw portion 5, but the two do not have to be a single molded body, and both may be manufactured separately and integrated. .. At that time, the materials of both may be different.
【００１４】 導入部材３は、位置決め部材２と同一外周をもった直胴部７を備えていること が好ましい。その理由は、該直胴部７を備えていないと、すなわち、位置決め部 材２と導入部材３の外周直胴部のいずれかの直径が異なっていて段差があると、 鋼板の装入・抜き出し時に位置決め部材２に直接衝撃が加わる恐れがあるからで ある。The introducing member 3 preferably includes a straight body portion 7 having the same outer circumference as the positioning member 2. The reason for this is that if the straight body portion 7 is not provided, that is, if the positioning member 2 and the outer peripheral straight body portion of the introduction member 3 have different diameters and there is a step, the loading / unloading of steel plates is performed. This is because the positioning member 2 may sometimes be directly impacted.
【００１５】 また、導入部材３は、テーパー部６を有していることが望ましく、これによっ て鋼板の装入・抜き出しが一層容易となる。テーパー部６の形状については特に 制約はなく、市販のボルトやリベットが使用できるように頭部が平状又は半球状 とすることができる。Further, it is desirable that the introduction member 3 has a tapered portion 6, which makes it easier to load and unload the steel sheet. The shape of the tapered portion 6 is not particularly limited, and the head can be flat or hemispherical so that commercially available bolts and rivets can be used.
【００１６】 固定部材１には、溶接機（図示してなし）等に取り付けるために、ネジ部８や テーパー部（図示してなし）等の取り付け手段を設けておくのが望ましい。勿論 、取付け手段を設けることなく溶接・接着等によって本考案の位置決めピンを取 り付けることもできる。It is desirable that the fixing member 1 is provided with an attaching means such as a screw portion 8 or a taper portion (not shown) for attaching to a welding machine (not shown) or the like. Needless to say, the positioning pin of the present invention can be attached by welding, bonding or the like without providing a mounting means.
【００１７】 図１に示した固定部材１の頭部は外周方向に拡大された形状となっているが、 これは溶接機等に都合よく取り付けるための措置であって、本考案では必ずしも 必要ではない。The head of the fixing member 1 shown in FIG. 1 has a shape enlarged in the outer peripheral direction, but this is a measure for convenient attachment to a welding machine or the like, and is not necessarily required in the present invention. Absent.
【００１８】 固定部材１、導入部材３及び導入部材の軸部４の材質は金属質であり、炭素鋼 （S45C、S50Cなど）、クロムモリブデン鋼（SCM ）、合金工具鋼（SKS 、SKD な ど）、ステンレス鋼（SUS ）などから適切なものが選択される。The material of the fixing member 1, the introducing member 3 and the shaft portion 4 of the introducing member is metallic, such as carbon steel (S45C, S50C, etc.), chrome molybdenum steel (SCM), alloy tool steel (SKS, SKD, etc.). ), Stainless steel (SUS), etc.
【００１９】[0019]
以下、実施例と比較例をあげてさらに具体的に本考案を説明する。 Hereinafter, the present invention will be described more specifically with reference to Examples and Comparative Examples.
【００２０】 固定部材１をS45C、位置決め部材２を常圧焼結で製造された丸パイプ状の窒化 珪素セラミックス、そして導入部材の軸部４と一体成形された導入部材３として SCM435（硬度HRC40 ）を用いた。位置決め部材２の貫通孔に導入部材３を挿通し 固定部材１に螺着する際に、導入部材の軸部の一部をなすネジ部５と位置決め部 材２の貫通孔に緩み止め防止剤（日本ロクタイト社製「ロックタイト」）を塗布 した。次いで、位置決め部と導入部を機械加工によって、その断面形状を円状か ら楕円状にして図１に示す位置決めピンを製作した。全体寸法は、およそ高さ50 mm×直径8mm である。The fixing member 1 is S45C, the positioning member 2 is a round pipe-shaped silicon nitride ceramics manufactured by pressureless sintering, and SCM435 (hardness HRC40) is used as the introducing member 3 integrally formed with the shaft portion 4 of the introducing member. Was used. When inserting the introducing member 3 into the through hole of the positioning member 2 and screwing the fixing member 1 into the fixing member 1, a loosening prevention agent (screw part 5 that forms a part of the shaft of the introducing member and the loosening preventive agent in the through hole of the positioning member 2 ( “Loctite” manufactured by Nippon Loctite Co., Ltd. was applied. Then, the positioning portion and the introduction portion were machined to change the cross-sectional shape from a circular shape to an elliptical shape to manufacture the positioning pin shown in FIG. The overall dimensions are approximately 50 mm high x 8 mm in diameter.
【００２１】 この位置決めピンを自動車の製造工程に使用した結果、車体の鋼板が接触する 位置決め部に摩耗がみられず、一方向の鋼板の装入・抜き出し時の機械的衝撃に も充分耐えるものであった。また、寿命も従来の金属製の位置決めピンに比べて 大幅に延び、手入れをせずに１０万枚以上の鋼板溶接が達成された。As a result of using this locating pin in the manufacturing process of automobiles, the locating part with which the steel plate of the vehicle body comes into contact does not show wear, and it is sufficiently resistant to mechanical impact when the unidirectional steel plate is loaded or unloaded. Met. In addition, the service life was significantly extended compared to conventional metal positioning pins, and welding of 100,000 or more steel plates was achieved without maintenance.
【００２２】 これに対し、位置決め部と導入部の断面形状を菱形状に加工した場合には、鋼 板を５，０００枚溶接しないうちに位置決め部にチッピングが発生し、使用不可 能となった。On the other hand, when the cross-sectional shape of the positioning portion and the introduction portion was processed into a rhombus shape, chipping occurred in the positioning portion before welding 5,000 steel plates, making it unusable. ..
【００２３】[0023]
本考案の位置決めピンは、耐摩耗性に優れ、しかも一方向の鋼板の装入・抜き 出し時の機械的衝撃に充分耐えるので大幅な長寿命化が達成できる。 The locating pin of the present invention has excellent wear resistance and can withstand a mechanical impact when a unidirectional steel plate is loaded or unloaded, so that the service life can be significantly extended.
【図１】 （ａ）は、本考案の一実施例の位置決めピン
の一部切欠断面図であり、（ｂ）はＡ−Ａ断面図であ
る。FIG. 1A is a partially cutaway sectional view of a positioning pin according to an embodiment of the present invention, and FIG. 1B is a sectional view taken along line AA.
１ 金属質固定部材 ２ セラミックス質位置決め部材 ３ 金属質導入部材 ４ 金属質導入部材の軸部 ５ 軸部のネジ部 ６ テーパー部 ７ 直胴部 ８ 固定部材のネジ部 DESCRIPTION OF SYMBOLS 1 Metal fixing member 2 Ceramic positioning member 3 Metal introducing member 4 Shaft part of metal introducing member 5 Screw part of shaft part 6 Tapered part 7 Straight body part 8 Screw part of fixing member
─────────────────────────────────────────────────────
─────────────────────────────────────────────────── ───
【手続補正書】[Procedure amendment]
【提出日】平成５年６月１７日[Submission date] June 17, 1993
【手続補正２】[Procedure Amendment 2]
【補正対象書類名】図面[Document name to be corrected] Drawing
【補正対象項目名】全図[Correction target item name] All drawings
【補正方法】変更[Correction method] Change
【補正内容】[Correction content]
【図１】 [Figure 1]
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.5 識別記号 庁内整理番号 ＦＩ 技術表示箇所 // Ｃ０４Ｂ 35/58 １０２ Ｙ ─────────────────────────────────────────────────── ─── Continuation of front page (51) Int.Cl. 5 Identification number Office reference number FI technical display location // C04B 35/58 102 Y
Claims (1)
を有するセラミックス質位置決め部材（２）を配置し、
その貫通孔を通して金属質導入部材（３）を該金属質固
定部材（１）に装着してなる位置決めピンにおいて、上
記金属質導入部材(3) と上記セラミックス質位置決め部
材(2) の断面が楕円状を有してなることを特徴とする位
置決めピン。1. A ceramic positioning member (2) having a through hole is arranged on the upper surface of the metallic fixing member (1),
In the positioning pin formed by mounting the metallic introduction member (3) on the metallic fixing member (1) through the through hole, the cross sections of the metallic introduction member (3) and the ceramic positioning member (2) are elliptical. A positioning pin having a shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7874391U JP2562247Y2 (en) | 1991-09-04 | 1991-09-04 | Positioning pin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7874391U JP2562247Y2 (en) | 1991-09-04 | 1991-09-04 | Positioning pin |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0588786U true JPH0588786U (en) | 1993-12-03 |
| JP2562247Y2 JP2562247Y2 (en) | 1998-02-10 |
Family
ID=13670372
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7874391U Expired - Lifetime JP2562247Y2 (en) | 1991-09-04 | 1991-09-04 | Positioning pin |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2562247Y2 (en) |
-
1991
- 1991-09-04 JP JP7874391U patent/JP2562247Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JP2562247Y2 (en) | 1998-02-10 |
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