JPH01266926A - Manufacture of cap nut with washer - Google Patents

Manufacture of cap nut with washer

Info

Publication number
JPH01266926A
JPH01266926A JP9488988A JP9488988A JPH01266926A JP H01266926 A JPH01266926 A JP H01266926A JP 9488988 A JP9488988 A JP 9488988A JP 9488988 A JP9488988 A JP 9488988A JP H01266926 A JPH01266926 A JP H01266926A
Authority
JP
Japan
Prior art keywords
nut
washer
cap
slider
die
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
JP9488988A
Other languages
Japanese (ja)
Other versions
JPH0377016B2 (en
Inventor
Kanichi Arakawa
荒川 寛一
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.)
DAIICHI KOGYO KK
Original Assignee
DAIICHI KOGYO KK
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 DAIICHI KOGYO KK filed Critical DAIICHI KOGYO KK
Priority to JP9488988A priority Critical patent/JPH01266926A/en
Publication of JPH01266926A publication Critical patent/JPH01266926A/en
Publication of JPH0377016B2 publication Critical patent/JPH0377016B2/ja
Granted legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21KMAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
    • B21K1/00Making machine elements
    • B21K1/64Making machine elements nuts
    • B21K1/70Making machine elements nuts of special shape, e.g. self-locking nuts, wing nuts
    • B21K1/704Cap nuts

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bolts, Nuts, And Washers (AREA)
  • Forging (AREA)

Abstract

PURPOSE:To automatize an operation by holding and fixing a cap nut between a die and a slider, inserting a step part of the lower surface part of a nut into a through hole of the slider and caulking the nut and the washer rotatavely by a fixing punch. CONSTITUTION:The cap nut (a) wherein its step part 6 is set in the through hole 10 of the washer 9 is mounted on the upper surface part 17 of the slider (c) with its step part downward. The cap 8 and the nut 1 are set in both recess parts 12, 14 of the die (b). Consequently, the cap nut (a) is mounted steadily on the upper surface part of the slider (c). The upper surface part of the washer 9 is pressed slightly by cushion material 16 made from rubber stock, etc. When a shunk 11 is driven and lowered by a prescribed distance, the slider (c) falls against a spring 22, the head 25 of the punch 24 is put under and inside the step part 6 protruded on the cap nut (a) to expand the step part 6 forcedly outside and to caulk the washer 9. In this way, the cap nut with a washer can be held steadily and caulked surely.

Description

【発明の詳細な説明】 [産業上の利用分野コ 本発明はワッシャー付キャップナツトの製造方法の分野
に関するものである。
DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to the field of a method for manufacturing a cap nut with a washer.

[従来の技術] 従来のワッシャー付キャップナツトの製造方法として、
抵抗溶接等によって予め形成したキャップナツトを下側
にして、キャップの球面部をナツト受台で受け、キャッ
プナツトの下面部に突設した円環突条に別設のワッシャ
ーを嵌合し、ナツトとワッシャーとが常時回転自在とな
るように円環突条をカシメでやる製造工程があった。そ
の−例としては、特開昭63−1809号の発明があっ
た。
[Conventional technology] As a conventional method for manufacturing a cap nut with a washer,
With the cap nut previously formed by resistance welding etc. facing downward, the spherical part of the cap is received by the nut holder, a separate washer is fitted to the annular protrusion protruding from the lower surface of the cap nut, and the nut is tightened. There was a manufacturing process in which the annular protrusion was caulked so that the washer and washer could rotate freely at all times. An example of this is the invention disclosed in Japanese Unexamined Patent Publication No. 1809/1983.

[発明が解決しようとする課題] 従来のワッシャー付キャップナツトの製造方法(特開昭
63−1809号)は、キャップナツトを下側にして、
キャップの球面部を嵌挿させ、キャップナツトを構成す
るナツトの頭部をナツト受台で受けさせ、ナツトの下面
に突設した円環突条に嵌挿したワッシャーをカシメ付け
していたが、ナツト頭部の平面部が極めて少ないため、
安定した状態でカシメができないことと、カシメの際に
、ナツトの頭部等に傷が発生して商品価値を著しく損ね
る等の欠陥が指摘された。
[Problems to be Solved by the Invention] The conventional method for manufacturing a cap nut with a washer (Japanese Patent Application Laid-open No. 1809/1983) involves placing the cap nut on the lower side.
The spherical part of the cap was inserted, the head of the nut constituting the cap nut was received by a nut holder, and a washer inserted into an annular ridge protruding from the lower surface of the nut was caulked. Since the nut head has very few flat parts,
It was pointed out that the nut could not be crimped in a stable state, and the nut's head was damaged during crimping, significantly reducing the product value.

しかるに、本発明は、上方に装着するダイスによってキ
ャップナツトを構成するキャップの球面部を受けさせ、
ダイスの下方に位置するスライダーによってナツトの下
面部に突設した段部を受けさせ、キャップナツト全体が
ダイスとスライダー間に保持固定された状態において、
ナツトを常時安定させ、正確にワッシャーのカシメ付け
ができるようにしたものである。
However, the present invention allows the spherical part of the cap constituting the cap nut to be received by the die mounted above,
The slider located below the die receives the stepped part protruding from the lower surface of the nut, and when the entire cap nut is held and fixed between the die and the slider,
This keeps the nut stable at all times and allows the washer to be caulked accurately.

さらに本発明は、上述の如くキャップナツトを確実tこ
固定した状態でワッシャーをカシメ付けることができる
ので、自動化がより一層容易となった等、優れた利点を
併有するワッシャー付キャップナツトの製造方法を提供
することを目的としたものである。
Furthermore, the present invention provides a method for manufacturing a cap nut with a washer, which has excellent advantages such as the washer can be caulked with the cap nut securely fixed as described above, making automation even easier. The purpose is to provide the following.

[課題を解決するための手段] 上述の目的を達成するために、本発明ワッシャー付キャ
ップナツトの製造方法においては、キャップナツトを構
成するギャップが嵌り込める半球面形状の凹部と、キャ
ップナツトを構成するナツトが嵌り込める開口状の凹部
とを有するダイスを殺げ、このダイスの半球面形状の凹
部にキャップの球面部を受けさせ、他方開口状の凹部に
ナツトを嵌め込み、ナツトの下面部に突設した段部と段
部に嵌挿したワッシャーとを上下方向にスライドするス
ライダーによって常時支持せしめて、キャップナツトを
ダイスとスライダー間に保持固定した状態となし、ナツ
ト下面部の段部をスライダーの貫通孔に嵌挿させ固定の
パンチによってナツトとワッシャーとが回転自在となる
ようにカシメ付けを施したものである。
[Means for Solving the Problems] In order to achieve the above-mentioned object, in the method for manufacturing a cap nut with a washer of the present invention, the cap nut is configured with a hemispherical recess into which a gap constituting the cap nut can be fitted. A die having an opening-shaped recess into which a nut can be fitted is inserted, the spherical part of the cap is received in the hemispherical recess of the die, and a nut is fitted into the other opening-shaped recess, and the lower surface of the nut is protruded. The stepped portion and the washer inserted into the stepped portion are always supported by a slider that slides vertically, and the cap nut is held and fixed between the die and the slider. The nut and washer are caulked so that they can rotate freely by inserting them into the through hole and using a fixed punch.

[作  用] 上記のように構成されたキャップナツトのキャップをダ
イスの半球面形状の凹部内に、ナツトは開口状凹部内に
夫々嵌め込んでやる。さらにダイスの下方に位置してい
るスライダーの上面部に、ワッシャーを嵌挿させたナツ
ト下面部の段部の一部を載置する。その際湾曲状頭部の
パンチがナツトの内側に設けられた貫通孔の径より若干
大きな径のパンチが、ナツトの貫通孔と段部の一部の下
方に位置している。そしてダイスに形成されている開口
状の凹部よりも外側のダイスの下面部に付着しているク
ツション材が段部に嵌挿しているワッシャーの上面部を
押さえている。またスライダーはスライドホルダー内に
嵌挿されているスプリングによって支持されている。
[Function] The cap of the cap nut constructed as described above is fitted into the hemispherical recess of the die, and the nut is fitted into the open recess. Furthermore, a part of the stepped portion of the lower surface of the nut, into which the washer is fitted, is placed on the upper surface of the slider located below the die. In this case, a punch with a curved head whose diameter is slightly larger than the diameter of the through hole provided inside the nut is located below a portion of the through hole and the stepped portion of the nut. A cushioning material attached to the lower surface of the die outside the open recess formed in the die presses the upper surface of the washer fitted into the stepped portion. Further, the slider is supported by a spring fitted into the slide holder.

さらにパンチ及びスライドホルダーは、グイプレートに
よって固定されている。
Further, the punch and slide holder are fixed by a goo plate.

以上の如くセットされたキャップナツトに対し、シャン
クを介しダイスを下方向に所定長さだけ降下させると、
ギャップナツトとワッシャーが比例して下方向に降下し
、固定しているパンチの頭部がナツトの貫通孔内に若干
嵌り込み、同時に段部を外側方向にプレスし、ワッシャ
ーをカシメでやる。
When the die is lowered by a predetermined length through the shank with respect to the cap nut set as above,
The gap nut and washer descend in proportion to each other, the head of the fixed punch slightly fits into the through hole of the nut, and at the same time the step is pressed outward and the washer is caulked.

上述の如く、ダイスが降下している間中、クツション材
又はスライダーの上面部に載置しているワッシャーの上
面部を押さえている。
As mentioned above, while the die is descending, it is pressing against the upper surface of the washer, which is placed on the cushion material or the upper surface of the slider.

上記の工程後は、シャンクとダイスとを所定の高さまで
上方向に上昇させてワッシャー付キャップナツトの製品
を取り出してやる。
After the above process, the shank and die are raised upward to a predetermined height to take out the cap nut with washer.

本発明は上述の如く、キャップナツトを、キャップは上
方となし、ナツト下面部の段部の一部をスライダーの上
面部に載置することができたので、キャップナツトは、
確実に載置し、さらにナツトの頭部はダイスの降下時に
おいて損傷することがない。
As described above, the present invention has a cap nut with the cap facing upward, and a part of the stepped portion of the lower surface of the nut can be placed on the upper surface of the slider.
It is placed securely, and the head of the nut is not damaged when the die is lowered.

[実 施 例] 実施例について図面を参照して説明すると、1はワッシ
ャー付ギヤップナッ)aを構成するナツトであり、この
ナツト1の中央部には上面部2から下面部3にかけて貫
通するネジ4を刻設した貫通孔5を形成する。6はナラ
)1を構成する下面部3より高さを均一に延設した貫通
孔7付き段部である。そして段部6の内側を若干開口状
に形成する。さらにナツト1の上面部2に半球形状のキ
ャップ8を抵抗溶接等によって熔着する。9は段部6に
嵌挿した中央に貫通孔10を形成したワッシャーであり
、このワッシャー9は貫通孔lOを介してナラl−1の
段部6に嵌挿する。
[Example] An example will be described with reference to the drawings. Reference numeral 1 denotes a nut constituting a gear-up nut with a washer (a), and a screw 4 penetrating from the upper surface portion 2 to the lower surface portion 3 is installed in the center of the nut 1. A through hole 5 is formed. Reference numeral 6 denotes a stepped portion with a through hole 7 extending uniformly in height from the lower surface portion 3 constituting the oak. Then, the inside of the stepped portion 6 is formed into a slightly open shape. Further, a hemispherical cap 8 is welded to the upper surface 2 of the nut 1 by resistance welding or the like. Reference numeral 9 denotes a washer which is fitted into the step 6 and has a through hole 10 formed in the center thereof, and this washer 9 is fitted into the step 6 of the oak l-1 through the through hole IO.

bはダイスであり、以下の構成からなっている。即ち1
1はダイスbの上方部に装着したシャンク、12はダイ
スbの下面部13より内側に形成したキャップナラ)a
を構成するナツト1を嵌り込むための開口状の凹部であ
る。そしてこの凹部12の上方にキャップ8が嵌り込む
半球面形状の凹部14を形成する。またダイスbの下面
部13には内側に開口状の凹部12の径と同程度の貫通
孔15を設けたり・ンション材16を接着する。以上を
以てダイスbを構成する。
b is a die and has the following configuration. That is, 1
1 is a shank attached to the upper part of die b, 12 is a cap nut formed inside the lower surface part 13 of die b)
This is an opening-shaped recess into which a nut 1 forming the structure is fitted. A hemispherical recess 14 into which the cap 8 fits is formed above the recess 12. Further, a through hole 15 having the same diameter as the open recess 12 is provided on the inside of the lower surface 13 of the die b, and a tension material 16 is bonded thereto. Dice b is configured with the above.

Cはダイスbの下方に位置し装着したスライダーであっ
て以下の構成からなっている。水平状の上面部17と中
央にナツト1の貫通孔7の径よりも若干大きい垂直状の
貫通孔18を形成する。さらにスライダーCの下方部に
は外側へ突出する鍔部19を形成する。
C is a slider located and attached below the die b, and has the following configuration. A vertical through hole 18, which is slightly larger in diameter than the through hole 7 of the nut 1, is formed in the center of the horizontal upper surface part 17. Furthermore, a flange 19 is formed in the lower part of the slider C to project outward.

dは内側空室部20と、上方に内側に若干延設した引掛
は部21とを有するスライドホルダーであって、上記ス
ライダーCはスライドホルダーdの空室部20より嵌め
込んで、鍔部19と引掛は部21とを引掛ける。そして
スプリング22を空室部20に嵌挿してからスライドホ
ルダーdをグイプレート23に固着する。24はグイプ
レート23に固着した頭部25が湾曲状で、しかもスラ
イダーCの貫通孔18に嵌挿したパンチである。
d is a slide holder having an inner hollow part 20 and a hook part 21 slightly extending upward and inward, and the slider C is fitted into the hollow part 20 of the slide holder d, and is attached to the collar part 19. and hook part 21. Then, after fitting the spring 22 into the empty chamber 20, the slide holder d is fixed to the goo plate 23. 24 is a punch having a curved head 25 fixed to the Goo plate 23 and fitted into the through hole 18 of the slider C.

つぎに以上の構成からなるワッシャー付キャップナツト
の製造用装置を使用して、本発明のキャップナラl−a
を製造するには下記のようにする。
Next, using the apparatus for manufacturing a cap nut with a washer having the above configuration, the cap nut l-a of the present invention is manufactured.
To manufacture, proceed as follows.

ワッシャー9の貫通孔10内に段部6を嵌め込んだキャ
ップナツトaを段部6を下方にしてスライダーCの上面
部17に載置してやる。そしてダイスbの両凹部12.
14内にキャップ8とナラ)1とを嵌め込んでやる。そ
の結果カシメ前のキャップナツトaは、段部6の大半が
スライダーCの上面部17に安定した状態で載置せしめ
られると共に、ワッシャー9もスライダーCの上面部1
7に確実に載置する。さらにワッシャー9の上面部もラ
バー資材製等のクツション材16によって軽く押圧され
ている。同時にキャップ8の表面部が凹部12内に確実
に嵌り込んで揺動するようなことはない。さらにナット
1全体も、凹部14内に確実に嵌り込んでナツト1の外
側面が損傷を受けたり、揺動することがない。
The cap nut a with the stepped portion 6 fitted into the through hole 10 of the washer 9 is placed on the upper surface portion 17 of the slider C with the stepped portion 6 facing downward. and both concave portions 12 of die b.
Insert cap 8 and oak 1 into 14. As a result, most of the stepped portion 6 of the cap nut a before crimping is placed on the upper surface 17 of the slider C in a stable state, and the washer 9 is also placed on the upper surface 17 of the slider C.
7. Place it securely. Furthermore, the upper surface of the washer 9 is also lightly pressed by a cushion material 16 made of rubber material or the like. At the same time, the surface portion of the cap 8 will surely fit into the recess 12 and will not swing. Furthermore, the entire nut 1 is reliably fitted into the recess 14, so that the outer surface of the nut 1 will not be damaged or swing.

以上の如く、嵌挿と載置状態におかれたキャップナラ)
aに対し、シャンク11を駆動せしめでダイスbを所定
の距離だけ降下すると、スプリング22等によって上方
に持ち上げられているスライダーCは、降下したダイス
bに抗しなから若干降下する。所定の距離だけ降下した
キャップナツトaに突設する段部6の下方内側部にパン
チ24の頭部25が嵌合して、段部6を外側方向へ押し
広げ、ワッシャー9をカシメる。その結果カシメられた
ワッシャー9は、ナラl−1との間に回転自在となって
いる。以上の工程によってナラ)1とワッシャー9とが
カシメられた後、シャンク11を上昇せしめてやると、
ダイスbも比例して持上げられ、両凹部12.14内に
嵌り込んでいたワッシャー9付キヤツプナツトaが取出
せる。
As described above, the cap nut is placed in the inserted and placed state)
When the die b is lowered by a predetermined distance by driving the shank 11 with respect to the slider C, the slider C, which is lifted upward by the spring 22, etc., descends slightly without resisting the lowered die b. The head 25 of the punch 24 fits into the lower inner side of the stepped portion 6 protruding from the cap nut a that has been lowered by a predetermined distance, expands the stepped portion 6 outward, and caulks the washer 9. As a result, the caulked washer 9 is rotatable between it and the neck l-1. After the shank 1 and washer 9 are caulked through the above process, when the shank 11 is raised,
The die b is also lifted proportionately, and the cap nut a with the washer 9 fitted in both the recesses 12 and 14 can be taken out.

以上の如く本発明の場合、カシメ前のキャップナツトa
を、ダイスbとスライダーCとの間に確実に安定した状
態で載置させておくことができると共に、ナツト1の外
側部が損傷するようなことが全くない。
As described above, in the case of the present invention, the cap nut a before crimping
can be reliably and stably placed between the die b and the slider C, and the outer part of the nut 1 will not be damaged at all.

第6図は、従来のワッシャー付キャップナツトa′の製
造時の状態を示す縦断面図である。
FIG. 6 is a longitudinal cross-sectional view showing a state of a conventional washer-equipped cap nut a' during manufacture.

ナツト1′の上面部2′に熔着したキャップ8′を下方
にして、ナツト受台25に形成した凹部26に没入せし
め、キャップ8′の外側にあたるナツト1′の僅かの狭
い範囲の上面部2′が、ナツト受台25の上面部27に
よって支持されている。そこでナツト1′の上面部2′
の支持面を確実にするため、ナツト1′の」二面部2′
とナツト受台25との間に、囲壁28を介在させる。上
述の如く、キャップ8′イづナツト1′を本願発明とは
正反対の転覆せしめた状態となした後、ナツト1′の下
面部3′に突設した円環突条6′にワッシャー9′を嵌
合し、上方よりポンチ29で突条6′を押し広げてワッ
シャー9′をカシメてやる。以」二の工程が従来のワッ
シャー付キャップナツトの製造法である[発明の効果] 本発明は上述のとおり構成されているので、次に記載す
る効果を奏する。
With the cap 8' welded to the upper surface 2' of the nut 1' facing downward, the cap 8' is inserted into the recess 26 formed in the nut holder 25, and the upper surface of the nut 1' in a slightly narrow area outside the cap 8' is inserted. 2' is supported by the upper surface portion 27 of the nut holder 25. Then, the upper surface 2' of the nut 1'
In order to ensure the supporting surface of the nut 1',
A surrounding wall 28 is interposed between the nut holder 25 and the nut holder 25. As described above, after the cap 8' and the nut 1' are turned upside down, which is the opposite of the present invention, a washer 9' is attached to the annular protrusion 6' protruding from the lower surface 3' of the nut 1'. , and use a punch 29 from above to spread out the protrusion 6' and caulk the washer 9'. The following two steps are the conventional manufacturing method of a cap nut with a washer. [Effects of the Invention] Since the present invention is configured as described above, it produces the following effects.

ダイスを構成する半球面形状の凹部にキャップを、開口
状の凹部にナツトを夫々嵌め込み、ワッシャーを嵌挿し
たナツトの段部を、ダイスの下方に位置し、常時上方向
に押圧げられてl、Nlす る貫通孔を有するスライダーの上面部に載置し、スライ
ダーの貫通孔に嵌挿し固着されているパンンチの頭部が
、ダイスの降下によって、載置している段部内に嵌合し
、段部を外側方向に押し広げワッシャーをカシメでワッ
シャー付キャップナツトを製造するようにしたので、キ
ャップナツトは嵌挿からカシメるまでの間において、常
時安定した状態で保持し、正確にワッシャー付キャップ
ナツトのカシメ付けができる利点を有している。
A cap is fitted into the hemispherical recess that constitutes the die, and a nut is fitted into the open recess, and the stepped part of the nut with the washer fitted is positioned below the die and is constantly pressed upward. The head of the punch, which is placed on the upper surface of a slider having a through hole of Since the cap nut with washer is manufactured by pushing the stepped part outward and crimping the washer, the cap nut is always held in a stable state from insertion to crimping, and the cap nut with washer is accurately formed. It has the advantage that nuts can be crimped.

さらに本発明は、上述の如くキャップナツトを確実に固
定した状態でワッシャーをカシメ付けることができるの
で、自動化がより一層容易になった利点を有している。
Furthermore, the present invention has the advantage that automation is further facilitated because the washer can be caulked while the cap nut is securely fixed as described above.

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

第1図は本発明ワッシャー付キャップナツトの製造方法
におけるキャップナットを嵌め込み、ワッシャーをカシ
メる以前の状態を示す一部切欠縦断面図、第2図は同キ
ヤ・ンプナ−/ )の半裁縦断面図、第3図は同キャッ
プナットの平面図、第4図は製品の縦断面図、第5図は
同平面図、第6図は従来の製造工程を示す一部切欠縦断
面図である。 a・・・ワッシャー付キャップナツト、1・・・ナツト
、2・・・上面部、3・・・下面部、4・・・ネジ、5
・φ・貫通孔 、b・・・段部、7・・・貫通孔、8・
・−キャップ、9・・・ワッシャー、10−・・貫通孔
、11・1111シヤンク、b 11 +111ダイス
、12111III凹部、13・・・下面部、14・・
・凹部、15・・・貫通孔、16・・・クツション材、
C・・・スライダー、17・・・上面部、18・・・・
貫通孔、19・・・鍔部、20・・・空室部、21・・
・引掛は部、22・・拳スプリング、23−−−ダイプ
レート、24・・・パンチ、25・Φ・頭部。
Fig. 1 is a partially cutaway vertical cross-sectional view showing the state before the cap nut is fitted and the washer is caulked in the manufacturing method of the cap nut with washer according to the present invention, and Fig. 2 is a half-cut vertical cross-section of the same cap nut with a washer. 3 is a plan view of the same cap nut, FIG. 4 is a longitudinal sectional view of the product, FIG. 5 is a plan view thereof, and FIG. 6 is a partially cutaway longitudinal sectional view showing the conventional manufacturing process. a...Cap nut with washer, 1...Nut, 2...Top part, 3...Bottom part, 4...Screw, 5
・φ・Through hole, b...Step part, 7...Through hole, 8・
・-Cap, 9...Washer, 10-...Through hole, 11/1111 shank, b 11 +111 die, 12111III recess, 13...Bottom surface part, 14...
・Recessed portion, 15... Through hole, 16... Cushion material,
C...Slider, 17...Top part, 18...
Through hole, 19... collar part, 20... empty chamber part, 21...
・The hook is part, 22...Fist spring, 23---Die plate, 24...Punch, 25・Φ・Head.

Claims (1)

【特許請求の範囲】[Claims] キャップナットを構成するキャップが嵌り込める半球面
形状の凹部と、キャップナットを構成するナットが嵌り
込める開口状の凹部とを有するダイスを設け、このダイ
スの半球面形状の凹部にキャップの球面部を受けさせ、
他方開口状の凹部にナットを嵌め込み、ナットの下面部
に突設した段部と段部に嵌挿したワッシャーとを上下方
向にスライドするスライダーによって常時支持せしめて
、キャップナットをダイスとスライダー間に保持固定し
た状態となし、ナット下面部の段部をスライダーの貫通
孔に嵌挿させ固定のパンチによってナットとワッシャー
とが回転自在となるようにカシメ付けを施したことを特
徴とするワッシャー付キャップナットの製造方法。
A die having a hemispherical recess into which the cap constituting the cap nut can fit, and an open recess into which the nut constituting the cap nut can fit is provided, and the spherical part of the cap is inserted into the hemispherical recess of the die. let me take it,
On the other hand, a nut is fitted into the opening-shaped recess, and the stepped part protruding from the bottom of the nut and the washer fitted into the stepped part are constantly supported by a slider that slides in the vertical direction, and the cap nut is inserted between the die and the slider. A cap with a washer, which is held in a fixed state, and the stepped part of the lower surface of the nut is inserted into a through hole of a slider, and the nut and washer are caulked with a fixed punch so that the nut and washer can rotate freely. Nut manufacturing method.
JP9488988A 1988-04-18 1988-04-18 Manufacture of cap nut with washer Granted JPH01266926A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9488988A JPH01266926A (en) 1988-04-18 1988-04-18 Manufacture of cap nut with washer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9488988A JPH01266926A (en) 1988-04-18 1988-04-18 Manufacture of cap nut with washer

Publications (2)

Publication Number Publication Date
JPH01266926A true JPH01266926A (en) 1989-10-24
JPH0377016B2 JPH0377016B2 (en) 1991-12-09

Family

ID=14122611

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9488988A Granted JPH01266926A (en) 1988-04-18 1988-04-18 Manufacture of cap nut with washer

Country Status (1)

Country Link
JP (1) JPH01266926A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009154174A (en) * 2007-12-26 2009-07-16 Kayaba Ind Co Ltd Fixture and method of fixing nut
CN104028688A (en) * 2014-06-24 2014-09-10 芜湖求精紧固件有限公司 Die

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009154174A (en) * 2007-12-26 2009-07-16 Kayaba Ind Co Ltd Fixture and method of fixing nut
CN104028688A (en) * 2014-06-24 2014-09-10 芜湖求精紧固件有限公司 Die

Also Published As

Publication number Publication date
JPH0377016B2 (en) 1991-12-09

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