JPH0337813B2 - - Google Patents
Info
- Publication number
- JPH0337813B2 JPH0337813B2 JP61195628A JP19562886A JPH0337813B2 JP H0337813 B2 JPH0337813 B2 JP H0337813B2 JP 61195628 A JP61195628 A JP 61195628A JP 19562886 A JP19562886 A JP 19562886A JP H0337813 B2 JPH0337813 B2 JP H0337813B2
- Authority
- JP
- Japan
- Prior art keywords
- nut
- seat
- center
- center hole
- cylindrical
- 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
- 238000004519 manufacturing process Methods 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 5
- 238000004080 punching Methods 0.000 description 4
- 238000000465 moulding Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 241001568665 Ocinebrellus inornatus Species 0.000 description 1
- 238000000137 annealing Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 102200082907 rs33918131 Human genes 0.000 description 1
- 238000005482 strain hardening Methods 0.000 description 1
Landscapes
- Forging (AREA)
Description
【発明の詳細な説明】
産業上の利用分野
この発明は座とナツトが一体となつた座付ナツ
トの製造方法に関する。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application This invention relates to a method for manufacturing a seated nut in which a seat and a nut are integrated.
従来の技術
従来座とナツトが一体となつた座付ナツトは、
次の工程を経て製造されていた。Conventional technology The conventional nut with a seat, in which the seat and nut are integrated,
It was manufactured through the following steps.
すなわち、まず棒状材を所定の長さで切断して
第５図イに示すような円柱状の素材ａを形成し、
次に座ｂとなる側の面取り（第５図ロ）に続い
て、ナツトｃとなる側の面取りを行う（第５図
ハ）。 That is, first, a rod-shaped material is cut to a predetermined length to form a cylindrical material a as shown in FIG.
Next, following the chamfering of the side that will become the seat b (FIG. 5B), the chamfering of the side that will become the nut C is performed (FIG. 5C).
その後第５図ニに示すように、六角部を形成す
るナツトｃを成形すると同時にナツトｃ中心に凹
部ｄを形成した後、座ｂ側からパンチにより打抜
きを行つて、素材ａの中心に第５図ホに示すよう
に穴開け加工を行う。 Thereafter, as shown in FIG. 5D, after forming a nut c forming a hexagonal part and at the same time forming a concave part d in the center of the nut c, punching is performed from the seat b side, and a fifth hole is formed in the center of the material a. Drill holes as shown in Figure E.
次に素材ａを金型（図示せず）に装填して、座
ｂをプレスすることにより第５図ヘに示すような
座付ナツトを成形している。 Next, the material a is loaded into a mold (not shown) and the seat b is pressed to form a seat nut as shown in FIG.
発明が解決しようとする問題点
上記従来の製造方法では、製造工程が多工程に
亘るため、生産効率が悪い不具合があつた。Problems to be Solved by the Invention The above-mentioned conventional manufacturing method has a problem of poor production efficiency because the manufacturing process involves multiple steps.
この発明は上記不具合を改善する目的でなされ
たものである。 This invention was made for the purpose of improving the above-mentioned problems.
問題点を解決するための手段及び作用
円柱状素材の両端面より中心部を押出し成形し
て、中心部に凹部を有するナツト部を一体に成形
後、素材を金型に装填して中心孔の打抜と、ナツ
ト及び座の据込成形を行うことにより、ナツトと
座が一体となつた座付ナツトを製造することを特
徴とする座付ナツトの製造方法。Means and operation for solving the problem After extruding the center part from both end faces of a cylindrical material and integrally molding a nut part having a concave part in the center, the material is loaded into a mold and the center hole is filled. A method for manufacturing a seated nut, which comprises manufacturing a seated nut in which the nut and seat are integrated by punching and upsetting the nut and seat.
実施例
この発明方法の一実施例を第１図ないし第４図
に示す図面を参照して詳述すると、図において１
は円柱状の素材で、S10Cなどの材料よりなり、
ナツトとなる側の端部に、截頭円錐状のテーパ部
１ａが予備成形されている。Embodiment An embodiment of the method of this invention will be described in detail with reference to the drawings shown in FIGS. 1 to 4.
is a cylindrical material made of materials such as S10C,
A truncated conical tapered portion 1a is preformed at the end on the side that will become the nut.
上記構成された素材１は、図示しないプレスの
金型内に装填されて、両端側より中心部にパンチ
が押圧され、第２図に示すように中心部に凹部２
ａを有する６角筒状のナツト部２及び中心部３ａ
を有する円筒状の底部３が押出し成形される。 The material 1 configured as described above is loaded into a mold of a press (not shown), and a punch is pressed into the center from both ends, and a recess 2 is formed in the center as shown in FIG.
Hexagonal cylindrical nut part 2 and center part 3a having a
A cylindrical bottom part 3 having a diameter is extruded.
また上記押出し成形された素材１は、ナツト部
２が座部３より長さが長くかつ薄肉に、そして座
部３はナツト部２より大径でかつ厚肉となつてい
る。 Further, in the extruded material 1, the nut part 2 is longer and thinner than the seat part 3, and the seat part 3 has a larger diameter and thicker wall than the nut part 2.
次に上記素材１を座付ナツトを成形する金型
（図示せず）に装填して、座部３側凹部３ａより
中心孔４を打抜き成形した後据込成形によりナツ
ト５及び座６を一体に成形して第３図及び第４図
に示すような座付ナツトを製造するもので、中心
孔４の雌ねじは、その後ねじ切り機により加工す
るようになつている。 Next, the above-mentioned material 1 is loaded into a mold (not shown) for forming a seated nut, and after punching and forming a center hole 4 from the recess 3a on the side of the seat 3, the nut 5 and seat 6 are integrally formed by upsetting. A seat nut as shown in FIGS. 3 and 4 is manufactured by molding the screw into a seat nut as shown in FIGS. 3 and 4, and the internal thread of the center hole 4 is then machined using a thread cutter.
なお素材１は成形前に焼鈍など熱処理を行つて
いるが、その説明は省略してある。 Note that although the material 1 is subjected to heat treatment such as annealing before being formed, the explanation thereof is omitted.
またこの発明の方法は素材を常温で加工する冷
間加工や、加熱して加工する熱間加工の何れにも
適用できるものである。 Furthermore, the method of the present invention can be applied to both cold working, in which the material is worked at room temperature, and hot working, in which the material is heated.
発明の効果
この発明は以上詳述したように、円柱状素材の
中心部を両端面を押出し加工してナツト部と底部
を成形する際、中心部の材料がナツト部及び底部
に流動するため、成形後中心部に形成される凹部
間の隔壁は薄いものとなり、これを打抜いて中心
孔を形成するようにしたことから、打抜き量は少
なくてよく材料の歩留まりを大幅に改善すること
ができる。Effects of the Invention As described in detail above, when forming the nut part and the bottom part by extruding both end faces of the center part of the cylindrical material, the material in the center part flows into the nut part and the bottom part. After molding, the partition walls between the recesses formed in the center are thin, and since these are punched out to form the center hole, only a small amount of punching is required, and the material yield can be greatly improved. .
また据込み成形時に中心孔を打抜くため、ナツ
トの六角部分と中心孔との同心度が高く、これに
より六角部分の偏肉によるねじ強度の低下や商品
価値の低下がなく、品質のよい座付ナツトが容易
に得られるようになる。 In addition, since the center hole is punched during upsetting, the hexagonal part of the nut and the center hole are highly concentric, which prevents the thread strength from decreasing due to uneven thickness in the hexagonal part and from reducing product value, resulting in a high-quality seat. This makes it easier to obtain nuts.
図面はこの発明の一実施例を示し、第１図ない
し第３図は製造工程を示す説明図、第４図は得ら
れた座付ナツトの斜視図、第５図イないしヘは従
来の説明図である。
１は素材、２はナツト部、３は座部、４は中心
孔、５はナツト、６は座。
The drawings show one embodiment of the present invention, FIGS. 1 to 3 are explanatory diagrams showing the manufacturing process, FIG. 4 is a perspective view of the obtained seat nut, and FIGS. It is a diagram. 1 is the material, 2 is the nut part, 3 is the seat part, 4 is the center hole, 5 is the nut, and 6 is the seat.
Claims (1)
工して、中心部に凹部２ａが形成されたナツト部
２と、中心部に凹部３ａが形成された底部３より
なる素材１を成形し、その後この素材１を金型に
装填して上記各凹部２ａ，３ａ間を打抜き成形す
ることにより中心孔４を形成した後、据込み成形
によりナツト５及び座６を成形することを特徴と
する座付ナツトの製造方法。1. Extrude both end faces of the central part of a cylindrical material 1 to form a material 1 consisting of a nut part 2 with a recess 2a formed in the center and a bottom part 3 with a recess 3a formed in the center. The material 1 is then loaded into a mold and punched between the recesses 2a and 3a to form the center hole 4, and then the nut 5 and seat 6 are formed by upsetting. Method for manufacturing nuts with nuts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19562886A JPS6352733A (en) | 1986-08-22 | 1986-08-22 | Manufacture of washer based nut |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19562886A JPS6352733A (en) | 1986-08-22 | 1986-08-22 | Manufacture of washer based nut |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6352733A JPS6352733A (en) | 1988-03-05 |
| JPH0337813B2 true JPH0337813B2 (en) | 1991-06-06 |
Family
ID=16344327
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19562886A Granted JPS6352733A (en) | 1986-08-22 | 1986-08-22 | Manufacture of washer based nut |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6352733A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012179651A (en) * | 2011-03-01 | 2012-09-20 | Sakamura Hot Art Co Ltd | Method of manufacturing flange nut |
| JP5429506B2 (en) * | 2012-05-30 | 2014-02-26 | 株式会社丸菱ナット製作所 | Manufacturing method of nut with seat |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5659557A (en) * | 1979-10-22 | 1981-05-23 | Masakazu Kotani | Press-forming method of flange nut material |
-
1986
- 1986-08-22 JP JP19562886A patent/JPS6352733A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5659557A (en) * | 1979-10-22 | 1981-05-23 | Masakazu Kotani | Press-forming method of flange nut material |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6352733A (en) | 1988-03-05 |
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