JPH0379568B2 - - Google Patents
Info
- Publication number
- JPH0379568B2 JPH0379568B2 JP21462081A JP21462081A JPH0379568B2 JP H0379568 B2 JPH0379568 B2 JP H0379568B2 JP 21462081 A JP21462081 A JP 21462081A JP 21462081 A JP21462081 A JP 21462081A JP H0379568 B2 JPH0379568 B2 JP H0379568B2
- Authority
- JP
- Japan
- Prior art keywords
- nut body
- metal plate
- diameter
- nut
- flange
- 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
Links
- 239000002184 metal Substances 0.000 claims description 38
- 238000000034 method Methods 0.000 claims description 19
- 230000006835 compression Effects 0.000 claims description 4
- 238000007906 compression Methods 0.000 claims description 4
- 238000003825 pressing Methods 0.000 claims description 4
- 238000003466 welding Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000010297 mechanical methods and process Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は、任意の金属板に対してナツトを機械
的に強固に固着するようにした方法に関する。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a method for mechanically firmly fixing a nut to an arbitrary metal plate.
（従来の技術）
従来、ナツトを金属板に固定するには一般的な
溶着する方法やカシメおよび圧入係合させる方法
等各種の提案がなされている。(Prior Art) Conventionally, various proposals have been made for fixing a nut to a metal plate, such as a general welding method, caulking, and press-fitting methods.
（発明が解決しようとする問題点）
しかしナツトを溶着により固定する場合は手間
がかかり、また溶着の確実性を確認し難いと云つ
た問題があり、取付けるナツトを複雑な形状にし
なければならない等の問題があつた。そこで本発
明は、このような実情に鑑み、ナツトを金属板に
対して機械的方法で簡単かつ確実に固着できる方
法を提供することを目的とする。(Problems to be Solved by the Invention) However, fixing the nut by welding takes time and there are problems such as it is difficult to confirm the reliability of the welding, and the nut to be attached must have a complicated shape. There was a problem. SUMMARY OF THE INVENTION In view of these circumstances, it is an object of the present invention to provide a method for easily and reliably fixing a nut to a metal plate by a mechanical method.
（問題点を解決するための手段）
まず本発明の第１の要旨は次ぎのとおりであ
る。(Means for Solving the Problems) First, the first gist of the present invention is as follows.
角軸によるナツト本体の外面に先端部側が小径
で基部側を大径にしたテーパを形成すると共に、
このナツト本体の基部側には大径部より大径のフ
ランジ部を一体に設けたナツトと、該ナツト本体
の大径部より更に大径でフランジ部より小径の角
孔を設けた回り止め用の金属板とを用意し、前記
ナツト本体を金属板の角孔に差し込んでフランジ
部を金属板の一面に係止させた状態で当該フラン
ジ部を固定ダイで支持し、ナツト本体の基部側の
角軸より小径の角孔を有する中空パンチをナツト
本体の先端部側外面に嵌合させて軸心線方向の押
圧力を加え、前記テーパを圧縮剪断塑性変形させ
て前記ナツト本体の基部側に先端部側と同径の角
軸による新しい肌を形成すると共に、この圧縮剪
断塑性変形された部分を前記金属板上に圧接さ
せ、前記フランジ部と協働して金属板を挾持する
フランジ状縁部に形成せしめた金属板にナツトを
固着する方法である。 A square shaft forms a taper on the outer surface of the nut body, with a small diameter on the tip side and a large diameter on the base side.
This nut body has a nut integrally provided with a flange portion with a larger diameter than the large diameter portion on the base side, and a square hole with a larger diameter than the large diameter portion of the nut body and a smaller diameter than the flange portion for preventing rotation. Prepare a metal plate, insert the nut body into the square hole of the metal plate, and with the flange part locked to one side of the metal plate, support the flange part with a fixed die, and A hollow punch having a square hole with a smaller diameter than the square shaft is fitted onto the outer surface of the tip end side of the nut body, and a pressing force is applied in the axial direction to deform the taper plastically by compressive shearing, so that the taper is compressed and sheared plastically to the base side of the nut body. A flange-like edge that forms a new skin with an angular shaft having the same diameter as the tip side, presses this compression-shear plastically deformed portion onto the metal plate, and works with the flange to clamp the metal plate. This is a method in which the nut is fixed to a metal plate formed on the part.
また本発明の第２の要旨は、上記の金属板にナ
ツトを固着する方法において、前記ナツト本体の
先端側には外径がナツト本体より小径で、内部に
は螺合されるボルトに対する緩み止め用リングが
嵌められる円筒と状の筒部を連設させ、前記圧縮
剪断塑性変形加工を行う中空パンチの角孔に連続
して前記筒部の開孔縁部を内側に塑性加工させる
円孔を設け、前記圧縮剪断塑性変形と同時に開孔
縁部の塑性加工を行うようにしたことにある。 A second gist of the present invention is that in the above method for fixing a nut to a metal plate, the tip side of the nut body has an outer diameter smaller than the nut body, and the inside has a locking mechanism for the bolt to be screwed. A cylindrical-shaped cylindrical part into which the ring is fitted is connected, and a circular hole is formed inward to plastically process the opening edge of the cylindrical part, which is continuous with the square hole of the hollow punch where the compression-shear plastic deformation process is performed. The present invention is characterized in that the plastic working of the aperture edge is performed simultaneously with the compressive shear plastic deformation.
（実施例） 以下、図面に示す実施例で本発明を説明する。(Example) The present invention will be explained below with reference to embodiments shown in the drawings.
第１〜２図はナツト１を示し、ナツト１は図の
ように例えば六角形等の角軸を有するナツト本体
２と、ナツト本体２の基部側よりも大径で、同ナ
ツト本体２の基部側に一体に設けられたフランジ
部３とからなつている。ナツト本体２は、フラン
ジ部３に近い基部が大径となるよう表面４にテー
パーが付けられ、また先端部側には例えば小外径
の筒部５が一体に設けられている。 Figures 1 and 2 show a nut 1, and the nut 1 has a nut body 2 having a square axis, such as a hexagonal shaft, as shown in the figure, and a nut body 2 with a diameter larger than the base side of the nut body 2. It consists of a flange portion 3 integrally provided on the side. The nut body 2 has a tapered surface 4 so that the base portion near the flange portion 3 has a large diameter, and a cylindrical portion 5 having a small outer diameter, for example, is integrally provided on the tip side.
このようなナツト１は、第２図に示すように、
任意外形々状を有する回り止め用の金属板６に設
けられた前記ナツト本体２の基部側に対応する角
孔７にナツト本体２が差し込まれ、フランジ部３
を金属板６の一面に係止される。 Such a nut 1, as shown in FIG.
The nut body 2 is inserted into a square hole 7 corresponding to the base side of the nut body 2 provided in a metal plate 6 for preventing rotation having an arbitrary outer shape, and the flange portion 3
is secured to one side of the metal plate 6.
次に、第３図に示すように、金属板６に嵌めら
れた状態のナツト１は、フランジ部３を所定の固
定ダイ８により支持され、ナツト本体２側には中
空パンチ９が当てられる。中空パンチ９は、ナツ
ト本体２の基部側周囲の内接円よりも小径でナツ
ト本体２周囲と相似の形状を有する角孔と、該角
孔に連続する円孔による対応孔１０を有してお
り、矢印のようにナツト本体２の基部側周囲部に
対して軸心線方向の押圧力を加える。この結果、
第４〜５図に示すように、ナツト本体２の基部側
外周部に圧縮剪断塑性変形を起させて先端部側と
同径の角軸による新しい肌１１を形成すると共
に、当該圧縮剪断塑性変形された部分を前記金属
板６上に圧接させ、前記フランジ部３と一緒に金
属板を挾持するフランジ状縁部１２を形成するこ
とになる。この際、金属板６の角孔７も拡開塑性
変形を受けて、フランジ部３及びフランジ状縁部
１２の間におけるナツト本体２の外周面と密着さ
れる。 Next, as shown in FIG. 3, the nut 1 fitted into the metal plate 6 has its flange portion 3 supported by a predetermined fixed die 8, and a hollow punch 9 is applied to the nut body 2 side. The hollow punch 9 has a square hole having a smaller diameter than the inscribed circle around the base side of the nut body 2 and a similar shape to the periphery of the nut body 2, and a corresponding hole 10 which is a circular hole continuous to the square hole. Then, as shown by the arrow, a pressing force is applied to the periphery of the base side of the nut body 2 in the axial direction. As a result,
As shown in FIGS. 4 and 5, compressive shear plastic deformation is caused on the outer periphery of the base side of the nut body 2 to form a new skin 11 with an angular axis having the same diameter as the tip side, and the compressive shear plastic deformation This portion is pressed against the metal plate 6, and together with the flange portion 3, a flange-like edge 12 for clamping the metal plate is formed. At this time, the square hole 7 of the metal plate 6 also undergoes expansion plastic deformation and is brought into close contact with the outer peripheral surface of the nut body 2 between the flange portion 3 and the flange-shaped edge portion 12.
上記の実施例で説明した工程によりナツト１１
は金属板６に固着され、金属板６と一体に取り扱
われる。前記金属板６は、例えば自動車等の各種
パネル上に当てられるもので、回り止めとなるよ
うパネル等の端縁に係止される起立部１３が形成
されている。 Nut 11 by the process described in the above example.
is fixed to the metal plate 6 and handled integrally with the metal plate 6. The metal plate 6 is placed on various panels of, for example, automobiles, and has an upright portion 13 that is latched to the edge of the panel or the like to prevent rotation.
また、ナツト本体２の筒部５も例えば短寸とな
る塑性加工を受けており（第５図）、筒部５の内
側には、ナツト本体に螺合される図示しない対応
するボルトの先端に圧接して緩み止めとなるプラ
スチツク製リング１４が嵌められ、リング１４は
ナツト本体のねじ山径よりも僅かに小さい内径を
有している。 Further, the cylindrical portion 5 of the nut body 2 is also plastically worked to make it shorter (Fig. 5), and the inner side of the cylindrical portion 5 is provided with a tip of a corresponding bolt (not shown) that is screwed into the nut body. A plastic ring 14 that presses against the nut to prevent loosening is fitted, and the ring 14 has an inner diameter slightly smaller than the thread diameter of the nut body.
さらに、第５図において、フランジ状縁部１２
は金属板６にめり込ませて、金属板６と同一平面
を有する状態にしてもよい。 Furthermore, in FIG.
may be recessed into the metal plate 6 so that it has the same plane as the metal plate 6.
（発明の効果）
以上説明してきたように本発明によると、機械
的塑性変形によりナツトを金属板に固着するよう
にしたもので、固着作業を容易かつ迅速に行なう
ことができ、しかもナツトを金属板に対して確実
に固定することができる方法が得られる。しかも
ナツトおよびパンチの形状は極めて簡単であり、
量産に適した安価な方法である。特に、特に、各
軸によるナツト本体の外面には先端部側が小径で
基部側を大径にしたテーパを設け、この基部側が
先端部側と同径の各軸になるように中空パンチで
テーパに圧縮剪断塑性変形を起こさせるようにし
たので、加工が容易になると共に、ナツトのねじ
山が変形するのを防止できる。また、圧縮剪断塑
性変形後の新しい肌は六角レンチ等の工具が係合
できる形状のために、仮に長期使用や過大な締付
トルクによつて回り止め用の金属板がナツトから
離脱しても保守点検等の際に支障を来たすことは
ない。(Effects of the Invention) As explained above, according to the present invention, the nut is fixed to the metal plate by mechanical plastic deformation, and the fixing work can be performed easily and quickly. A method that can be reliably fixed to the plate is obtained. Moreover, the shape of the nut and punch is extremely simple,
This is an inexpensive method suitable for mass production. In particular, the outer surface of the nut body formed by each shaft is tapered with a small diameter on the tip side and a large diameter on the base side, and the taper is formed with a hollow punch so that the base side has the same diameter as the tip side. Since compression shear plastic deformation is caused, processing becomes easy and the threads of the nut can be prevented from being deformed. In addition, the new skin after compression shear plastic deformation is shaped so that tools such as hex wrenches can be engaged with it, so even if the metal plate for preventing rotation comes off from the nut due to long-term use or excessive tightening torque. It will not cause any trouble during maintenance inspections, etc.
更に螺合されるボルトの緩み止め用のリングの
取付け加工が同時にできると共に、当該リングは
ナツトのねじ山が変形するのを防止するためにも
有効である。 Furthermore, a ring for preventing loosening of the bolt to be screwed together can be attached at the same time, and the ring is also effective for preventing the thread of the nut from being deformed.
第１図は、本発明方法に用いられるナツトの一
実施例の正面図、第２図は第１図のナツトの部分
断面右側面図で金属板に嵌める状態を示す説明
図、第３図は、第２図のナツト及び金属板に軸心
方法の押圧力を加える工程を示す説明図、第４図
は、第３図のナツトが金属板に固着された状態の
正面図、第５図は第４図の部分断面右側面図であ
る。
［符号の説明］、１……ナツト、２……ナツト
本体、３……フランジ部、４……テーパー表面、
５……筒部、６……金属板、７……角孔、８……
固定ダイ、９……中空パンチ、１０……対応孔、
１１……新しい肌、１２……フランジ状縁部、１
３……回り止め用起立部、１４……緩み止め用プ
ラスチック製リング。
FIG. 1 is a front view of an embodiment of the nut used in the method of the present invention, FIG. 2 is a partially sectional right side view of the nut shown in FIG. , FIG. 4 is a front view of the nut shown in FIG. 3 fixed to the metal plate, and FIG. 5 is a partially sectional right side view of FIG. 4. FIG. [Explanation of symbols] 1... Nut, 2... Nut body, 3... Flange portion, 4... Tapered surface,
5...Cylinder part, 6...Metal plate, 7...Square hole, 8...
Fixed die, 9...Hollow punch, 10...Corresponding hole,
11...New skin, 12...Flanged edge, 1
3... Standing part for preventing rotation, 14... Plastic ring for preventing loosening.
Claims (1)
径で基部側を大径にしたテーパを形成すると共
に、このナツト本体の基部側には大径部より大径
のフランジ部を一体に設けたナツトと、該ナツト
本体の大径部より更に大径でフランジ部より小径
の角孔を設けた回り止め用の金属板とを用意し、
前記ナツト本体を金属板の角孔に差し込んでフラ
ンジ部を金属板の一面に係止させた状態で当該フ
ランジ部を固定ダイで支持し、ナツト本体の基部
側の角軸より小径の角孔を有する中空パンチをナ
ツト本体の先端部側外面に嵌合させて軸心線方向
の押圧力を加え、前記テーパを圧縮剪断塑性変形
させて前記ナツト本体の基部側に先端部側と同径
の角軸による新しい肌を形成すると共に、この圧
縮剪断塑性変形された部分を前記金属板上に圧接
させ、前記フランジ部と協働して金属板を挾持す
るフランジ状縁部に形成せしめたことを特徴とす
る金属板にナツトを固着する方法。 ２ 角軸によるナツト本体の外面に先端部側が小
径で基部側を大径にしたテーパを形成すると共
に、このナツト本体の基部側には大径部より大径
のフランジ部を一体に設けたナツトと、該ナツト
本体の大径部より更に大径でフランジ部より小径
の角孔を設けた回り止め用の金属板とを用意し、
前記ナツト本体を金属板の角孔に差し込んでフラ
ンジ部を金属板の一面に係止させた状態で当該フ
ランジ部を固定ダイで支持し、ナツト本体の基部
側の角軸より小径の角孔を有する中空パンチをナ
ツト本体の先端部側外面に嵌合させて軸心線方向
の押圧力を加え、前記テーパを圧縮剪断塑性変形
させて前記ナツト本体の基部側に先端部側と同径
の角軸による新しい肌を形成すると共に、この圧
縮剪断塑性変形された部分を前記金属板上に圧接
させ、前記フランジ部と協働して金属板を挾持す
るフランジ状縁部に形成せしめた金属板にナツト
を固着する方法において、 前記ナツト本体の先端側には外径がナツト本体
より小径で、内部には螺合されるボルトに対する
緩み止め用リングが嵌められる円筒状の筒部を連
設させ、前記圧縮剪断塑性変形加工を行う中空パ
ンチの角孔に連続して前記筒部の開孔縁部を内側
に塑性加工させる円孔を設け、前記圧縮剪断塑性
変形と同時に開孔縁部の塑性加工を行うことを特
徴とする金属板にナツトを固着する方法。[Scope of Claims] 1. A square shaft forms a taper on the outer surface of the nut body with a small diameter on the tip side and a large diameter on the base side, and a flange portion with a larger diameter than the large diameter portion on the base side of the nut body. and a metal plate for preventing rotation, which has a square hole larger in diameter than the large diameter part of the nut body and smaller in diameter than the flange part,
Insert the nut body into the square hole of the metal plate, and with the flange part locked to one side of the metal plate, support the flange part with a fixed die, and insert a square hole with a smaller diameter than the square shaft on the base side of the nut body. A hollow punch having the same shape is fitted onto the outer surface of the tip end side of the nut body and a pressing force is applied in the axial direction, and the taper is deformed by compressive shear plasticity to form an angle on the base side of the nut body with the same diameter as the tip side. A new skin is formed by the shaft, and the compressed and sheared plastically deformed portion is brought into pressure contact with the metal plate to form a flange-like edge that cooperates with the flange to clamp the metal plate. A method of fixing a nut to a metal plate. 2. A nut having a square shaft formed with a taper formed on the outer surface of the nut body with a small diameter on the tip side and a large diameter on the base side, and a flange portion having a larger diameter than the large diameter portion integrally provided on the base side of the nut body. and a detent metal plate having a square hole larger in diameter than the large diameter part of the nut body and smaller in diameter than the flange part,
Insert the nut body into the square hole of the metal plate, and with the flange part locked to one side of the metal plate, support the flange part with a fixed die, and insert a square hole with a smaller diameter than the square shaft on the base side of the nut body. A hollow punch having the same shape is fitted onto the outer surface of the tip end side of the nut body and a pressing force is applied in the axial direction, and the taper is deformed by compressive shear plasticity to form an angle on the base side of the nut body with the same diameter as the tip side. At the same time as a new skin is formed by the shaft, this compression-shear plastic deformed portion is pressed onto the metal plate, and the metal plate is formed into a flange-like edge that cooperates with the flange portion to clamp the metal plate. In the method for fixing a nut, a cylindrical tube portion having an outer diameter smaller than that of the nut body and in which a locking ring for a bolt to be screwed is fitted is connected to the tip side of the nut body; Continuing with the square hole of the hollow punch that undergoes the compression shear plastic deformation process, a circular hole is provided to plastically process the aperture edge of the cylindrical portion inward, and the aperture edge is plastically deformed at the same time as the compression shear plastic deformation process. A method for fixing a nut to a metal plate, the method comprising:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21462081A JPS58113618A (en) | 1981-12-25 | 1981-12-25 | Method of fixing nut to metallic plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21462081A JPS58113618A (en) | 1981-12-25 | 1981-12-25 | Method of fixing nut to metallic plate |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58113618A JPS58113618A (en) | 1983-07-06 |
| JPH0379568B2 true JPH0379568B2 (en) | 1991-12-19 |
Family
ID=16658737
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP21462081A Granted JPS58113618A (en) | 1981-12-25 | 1981-12-25 | Method of fixing nut to metallic plate |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58113618A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63285312A (en) * | 1987-05-18 | 1988-11-22 | 株式会社 ナカムラ | Method of fixing hexagon nut to base material |
| JP4702919B2 (en) * | 2001-07-31 | 2011-06-15 | 河村電器産業株式会社 | Filter unit mounting structure |
-
1981
- 1981-12-25 JP JP21462081A patent/JPS58113618A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS58113618A (en) | 1983-07-06 |
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